CN221769673U

CN221769673U - Children's Carrier

Info

Publication number: CN221769673U
Application number: CN202321947787.3U
Authority: CN
Inventors: 汪涛; 胡问渠
Original assignee: China Wonderland Nurserygoods Co Ltd
Current assignee: China Wonderland Nurserygoods Co Ltd
Priority date: 2022-07-21
Filing date: 2023-07-21
Publication date: 2024-09-27
Anticipated expiration: 2033-07-21
Also published as: CA3262585A1; TW202404513A; CN223298805U; WO2024018076A2; JP2025523958A; DE112023003160T5; TW202525206A; WO2024018076A3; CN117426644A; EP4558017A2; AU2023309808A1; TWI881398B

Abstract

A child carrier, comprising: a main frame (1), a swing bracket assembly (2), and a seat (3); wherein the main frame (1) is adapted to be supported by the ground, and the seat (3) is pivotally connected to the main frame (1) through the swing bracket assembly (2) so as to be capable of swinging back and forth relative to the main frame (1).

Description

Child carrier

Technical Field

The utility model relates to a child carrier and a swinging mechanism.

Background

Child carriers such as child dining chairs, child carts, and the like each include a main frame and a seat supported by the main frame.

Disclosure of utility model

In one aspect of the utility model, there is provided a child carrier comprising: the seat comprises a main frame, a swing bracket assembly and a seat.

The main frame is adapted to be supported by the ground. The seat is pivotally connected with the main frame through the swing bracket assembly.

In some embodiments, the swing bracket assembly includes a swing arm pivotally connected to the main frame; the child carrier further comprises a swing limiting mechanism, and the swing limiting mechanism is arranged between the swing arm and the main frame.

In some embodiments, the swing arm is provided with a pivot through which the swing arm is pivotally connected to the main frame. The swing limiting mechanism comprises: the fixing piece is fixed on the main frame and is provided with a first limiting surface and a second limiting surface; the abutting piece is connected with the pivot and is positioned between the first limiting surface and the second limiting surface, and the abutting piece is abutted with the first limiting surface and the second limiting surface to limit the swing angle of the swing arm.

In some embodiments, the securing member is provided with a limit slot. The first limiting surface and the second limiting surface are formed on the side wall of the limiting groove; or a limiting piece is arranged in the limiting groove, and the first limiting surface and the second limiting surface are formed on the limiting piece.

In some embodiments, the limiting member has an opening through which the pivot shaft passes, and the first limiting surface and the second limiting surface are formed on a wall of the opening.

In some embodiments, the side walls of the limit groove include a first side wall and a second side wall parallel to each other, and the first limit surface and the second limit surface are formed on the first side wall and the second side wall. The abutting piece is inserted into the limiting groove and comprises a first pair of parallel surfaces and a second pair of parallel surfaces. And when the second pair of parallel surfaces swing to abut against the second limiting surface, the swing arm is limited to swing continuously in a second direction, and the direction of the first direction is opposite to that of the second direction.

In some embodiments, the main frame is provided with a support tube, the fixing member is sleeved in the support tube, the limit groove extends along the longitudinal direction of the fixing member and is provided with a notch, and the abutting member is inserted into the limit groove through the notch. The support tube is provided with a first through hole, the fixing piece is provided with a second through hole, the pivot shaft is arranged in the first through hole and the second through hole in a penetrating mode, and the axis of the support tube is perpendicular to the axis of the pivot shaft.

In some embodiments, the pivot is sleeved with a first shaft sleeve, and the first shaft sleeve is positioned at one side of the limit groove and is installed in the second through hole; and/or, the end part of the pivot is provided with a first flat head part, the abutting piece is provided with a first flat hole for being jointed with the first flat head part, the first flat head part is provided with a first limit structure, and the first limit structure is used for limiting the abutting piece and the first flat head part to be separated.

In some embodiments, a root of the first flat head is formed with a first step, and the first flat head is provided with a first positioning concave part; the first limiting structure comprises a spring clamp and a first positioning sleeve, wherein the spring clamp and the first positioning sleeve are positioned on the other side of the limiting groove, the first positioning sleeve is sleeved on the first flat head part and is provided with a radial through groove for accommodating the spring clamp, and the spring clamp is arranged in the radial through groove in a penetrating manner and is engaged with the first positioning concave part, so that the abutting piece is clamped between the first step and the first positioning sleeve.

In some embodiments, the first positioning sleeve has a second flat aperture for engagement with the first flat head; and the end surfaces of the abutting piece and the first positioning sleeve, which are opposite to each other, are provided with positioning holes and positioning convex columns which are engaged with each other.

In some embodiments, the pivot is integrally formed with the swing arm; and/or the first positioning sleeve is arranged in the second through hole; and/or the periphery of the first shaft sleeve and the hole wall of the second through hole are provided with an axial guide rib and an axial guide groove which are connected.

In some embodiments, the child carrier further comprises a first swing locking mechanism for locking the swing of the seat.

In some embodiments, the first swing lock mechanism includes a first release, a lock pin, and a first resilient element; the first elastic element applies elastic force to the lock pin to force the lock pin to extend out so as to be inserted into a lock hole on the seat; the first release member is operatively connected to the locking pin to urge the locking pin out of the locking hole.

In some embodiments, a first annular flange is provided in the middle of the locking pin, the first annular flange dividing the locking pin into a first portion for insertion into the locking hole and a second portion over which the first resilient element is fitted.

The first lock release piece is provided with a lock release position and a locking position, the first lock release piece is provided with a first long hole, and a first stop table extending obliquely is formed on the wall of the first long hole.

The first annular flange is clamped between the first stop table and the first elastic element, and when the first lock release piece moves to the lock release position, the first stop table pushes the first annular flange to enable the lock pin to retract.

In some embodiments, the main frame further comprises a first mounting housing. The first swing locking mechanism is installed in the first installation shell, the first installation shell is provided with a third through hole, and the lock pin penetrates through the third through hole. The first lock release member moves relative to the first mounting housing to switch to the lock release position or the lock position, the first lock release member has a first shifting block, and the first mounting housing is provided with a first opening for the first shifting block to move.

In some embodiments, the first swing lock mechanism is mounted on the main frame or on the swing bracket assembly.

The first swing locking mechanism includes a first release member, a lock pin, and a first resilient member.

The moving direction of the first lock release piece is perpendicular to the extending and contracting direction of the lock pin.

In some embodiments, one of the first release member and the locking pin has a first connection hole, and the other has a first post; the first connecting hole is provided with a first inclined wall, and the first column body stretches into the first connecting hole.

The first lock release piece is provided with a lock release position and a locking position; when the first lock release piece is in the locking position, the lock pin is inserted into the lock hole; when the first lock release piece moves from the locking position to the lock release position, the first inclined wall abuts against the first cylinder to drive the lock pin to withdraw from the lock hole.

In some embodiments, one end of the first inclined wall has a first limiting portion, and the first limiting portion is configured to be clamped with the first cylinder, so as to keep the first lock release member in the lock release position.

In some embodiments, the swing bracket assembly includes a swing housing on which the first swing lock mechanism is mounted, the swing housing having a first slide in sliding engagement with the first release lock and a second slide in sliding engagement with the lock pin.

In some embodiments, the first connecting hole is disposed at the first lock release member, and the first cylinder is disposed at the lock pin; the wall body of the second slideway is provided with an inclined guide wall, and the first column body is guided into the first connecting hole through the inclined guide wall.

In some embodiments, the first swing lock mechanism further comprises a mounting post, and the locking pin is sleeved with the mounting post and can rotate relative to the mounting post.

One of the mounting post and the locking pin has a second connecting hole, and the other has a second post with a second sloped wall, the second post extending into the second connecting hole.

The first lock release piece is provided with a lock release position and a locking position; when the first lock release piece is in the locking position, the lock pin is inserted into the lock hole; when the first lock release piece moves from the locking position to the lock release position, the first lock release piece drives the lock pin to rotate relative to the mounting column, and the second inclined wall abuts against the second column body at the same time, so that the lock pin is driven to exit the lock hole.

In some embodiments, one end of the second inclined wall has a second limiting portion, and the second limiting portion is used for being clamped with the second post, so as to keep the first lock release piece in the lock release position.

In some embodiments, the swing bracket assembly includes a swing housing, the first swing lock mechanism is mounted on the swing housing, and the first release lock is connected to the lock pin through a slider-crank mechanism.

In some embodiments, a seventh positioning mechanism is provided between the swing housing and the first lock release member, the seventh positioning mechanism being for holding the first lock release member in the lock release position or the lock position.

In some embodiments, the aperture includes a first aperture portion including a first wall and a second wall, the first stop surface and the second stop surface being formed on the first wall and the second wall.

The abutting piece is a second flat head part formed on the pivot, the second flat head part is close to the first end of the pivot and comprises a first plane and a second plane which are parallel to each other, and the first plane and the second plane abut against the first limiting surface and the second limiting surface in the swinging process of the swinging arm, so that the swinging angle of the swinging arm is limited.

In some embodiments, the aperture further comprises a second aperture in communication with the first aperture.

The position of the limiting piece in the limiting groove is adjustable, so that at least one part of the second flat head part is allowed to be engaged with the second hole part, and therefore the swing of the swing arm is locked.

In some embodiments, the first hole portion is formed by butt joint of two sub-fan-shaped holes, two limiting portions are formed at the joint of the two sub-fan-shaped holes, and when the second flat head portion is connected with the second hole portion, the second flat head portion has a portion clamped between the two limiting portions.

In some embodiments, the limit groove has a notch and a groove bottom.

One of the second hole part and the first hole part is close to the bottom of the limit groove, and the other is close to the notch of the limit groove.

And a second elastic element is arranged in the limiting groove, and is clamped between the groove bottom and the limiting piece.

When a pressing force is applied to the limiting piece, the limiting piece overcomes the elastic force of the second elastic element and moves towards the groove bottom, and after the pressing force is withdrawn, the second elastic element drives the limiting piece to move towards the notch so that the first hole part and the second hole part are selectively matched with the second flat head part.

In some embodiments, the main frame is provided with a support tube, the fixing member is sleeved in the support tube, the limit groove extends along the longitudinal direction of the fixing member and is provided with a notch, and the limit member is inserted into the limit groove through the notch.

The support tube is provided with a first through hole, the fixing piece is provided with a second through hole, the pivot shaft is arranged in the first through hole and the second through hole in a penetrating mode, and the axis of the support tube is perpendicular to the axis of the pivot shaft.

In some embodiments, the pivot is sleeved with a second sleeve, and the second sleeve is located at one side of the limiting groove and penetrates through the second through hole.

The pivot and the swing arm are of a split structure, and the end face of the second end of the pivot is provided with a flat head connecting part extending outwards; the swing arm is provided with a connecting sheet, and the connecting sheet is provided with a third flat hole for being jointed with the flat head connecting part; and the pivot is provided with a second limiting structure, and the second limiting structure is used for preventing the connecting sheet, the pivot and the limiting piece from being separated.

In some embodiments, the pivot has a central bore, the root of the second flat head portion is formed with a second step, and the root of the flat head connection portion is formed with a third step.

The second limiting structure comprises a bolt and a nut; the tail of the bolt penetrates into the central hole from the second end of the pivot, penetrates out of the central hole from the first end of the pivot and is in threaded connection with the nut, and the nut is positioned on the other side of the limiting groove and in the second through hole.

The connecting piece is clamped between the third step and the head of the bolt, and the limiting piece is clamped between the second step and the nut.

In some embodiments, the pivot further comprises a prismatic post extending from an end face of the second flat head, and the nut is provided with a second positioning recess engaging the prismatic post.

In some embodiments, the child carrier further comprises a second swing lock mechanism operatively connected with the limiter.

In some embodiments, a clamping portion is disposed at a top of the limiting member near the notch.

The second swing locking mechanism comprises a second lock release piece and a clamping piece; the clamping piece is sleeved on a rotating shaft parallel to the pivot, and a clamping bulge and an avoiding part are arranged on the periphery of the clamping piece; the second lock release piece is used for driving the clamping piece to rotate.

When the clamping protrusion rotates to a position propped against the clamping part, the limiting piece moves towards the bottom of the groove; when the avoiding part rotates to a position propped against the top of the limiting part, the limiting part moves towards the notch.

In some embodiments, the second swing locking mechanism further includes a first linking member, where the first linking member is connected between the engaging member and the second releasing member, and the second releasing member drives the engaging member to rotate through the first linking member.

In some embodiments, the first linkage member is arc-shaped, one of the first end of the first linkage member and the second release lock member is provided with a first connecting pin, and the other is provided with a second elongated hole in sliding fit with the first connecting pin.

The clamping piece is provided with a connecting lug, one of the second end of the first linkage piece and the connecting lug is provided with a second connecting pin, and the other is provided with a third long hole in sliding fit with the second connecting pin.

In some embodiments, the main frame further includes a second mounting housing in which the second swing lock mechanism and the spindle are mounted.

The second lock release member has a second shifting block, and the second mounting housing is provided with a third opening through which the second shifting block moves.

The fixing piece is located inside the second installation shell, and the second installation shell is provided with a fourth opening for the swing arm to pass through.

In some embodiments, the extending direction of the limiting groove is parallel to the axial direction of the pivot, and the pivot is inserted into the limiting groove.

In some embodiments, the stop includes a first region having the first stop face and the second stop face and a second region adapted to engage the abutment to lock the swing arm.

The limiting piece is in sliding fit with the limiting groove and has a first position and a second position, when the limiting piece is in the first position, the first region is matched with the abutting piece, and when the limiting piece is in the second position, the second region is engaged with the abutting piece.

In some embodiments, the stop includes a force plate and at least one arm extending from the force plate, the first region and the second region being formed on the at least one arm.

In some embodiments, the abutment is provided with at least one first slot, each comprising a first end wall and a second end wall opposite to each other.

The at least one arm body is suitable for penetrating through the at least one first groove part, when the first end wall swings to abut against the corresponding first limiting surface, the swing arm is limited to continue swinging in a first direction, and when the second end wall swings to abut against the corresponding second limiting surface, the swing arm is limited to continue swinging in a second direction.

In some embodiments, the abutment is further provided with at least one second groove adapted to engage with a corresponding said second zone.

In some embodiments, the at least one second groove portion is disposed at a groove bottom of the at least one first groove portion. The second region of the at least one arm is provided with a first latch adapted to engage with a corresponding second slot.

In some embodiments, the at least one first groove portion and the at least one second groove portion coincide with each other. The second region of the at least one wall is provided with a second latch adapted to engage the corresponding first slot.

In some embodiments, the limit groove has a notch and a groove bottom, the force plate is adjacent to the groove bottom, and the abutment is adjacent to the notch.

And a third elastic element is arranged in the limiting groove and is used for applying driving force for enabling the stress plate to move towards the groove bottom to the stress plate.

The child carrier further includes a third swing lock mechanism operatively connected to the force plate to drive the limiter to switch between the first and second positions.

In some embodiments, the third swing lock mechanism includes a drive wheel that is sleeved on the pivot and abuts against a side of the force-receiving plate facing the groove bottom.

One of the wall body of the limit groove and the driving wheel is provided with a ratchet part, the other one is provided with a ratchet groove part, the ratchet groove part is sequentially provided with a first ratchet groove with a first groove depth and a second ratchet groove with a second groove depth in the circumferential direction, and the first groove depth is unequal to the second groove depth; the driving wheel moves axially and rotates circumferentially when receiving the pressing force, so that the ratchet part is sequentially clamped with the first ratchet slot and the second ratchet slot.

In some embodiments, the bottom of the limit groove is provided with a mounting hole.

The third swing locking mechanism further comprises a pressing piece, the pressing piece is provided with a pressing portion and a pushing portion extending from the pressing portion, the pushing portion stretches into the limiting groove through the mounting hole, and the pushing portion is used for applying pressing force to the inclined plane of the first ratchet groove or the inclined plane of the second ratchet groove.

In some embodiments, the third swing lock mechanism further includes a return spring for return of the pressing piece.

The pushing part comprises at least one pushing arm extending from the pressing part, a pushing step is arranged in the middle of the at least one pushing arm, a hook part is arranged at the tail end of the at least one pushing arm, the driving wheel is located between the pushing step and the hook part, the pushing step is used for applying the pressing force, and the hook part is used for hooking the driving wheel after the pressing force is withdrawn.

In some embodiments, the ratchet portion is disposed on a wall of the limit slot, and the ratchet slot portion is disposed on the drive wheel.

In some embodiments, the wall of the limit groove is provided with a first axial guide for guiding the axial movement of the limit piece.

In some embodiments, the main frame is provided with a support tube having a first through hole with an axis perpendicular to an axis of the support tube; the fixing piece is sleeved in the first through hole, and the hole wall of the first through hole is provided with a second axial guide part which is used for guiding the axial movement of the fixing piece during installation.

In some embodiments, the swing bracket assembly further includes an auxiliary swing arm for assisting the swing arm in supporting the seat.

In some embodiments, the swing bracket assembly further comprises a connector, the swing arm and the auxiliary swing arm being pivotally connected to the connector, the connector being provided with a snap-in portion for engagement with the seat.

In some embodiments, the main frame further comprises a third mounting housing, the fixture being located in the third mounting housing; the outside of third installation casing is formed with spacing concave part, spacing concave part has first spacing wall and second spacing wall, the swing arm swing between first spacing wall and the second spacing wall.

In some embodiments, the swing bracket assembly is pivotally connected to the main frame; the seat is pivotally connected with the swing bracket assembly; the seat swings relative to the main frame by means of the swing bracket assembly.

The child carrier further includes a seat retaining mechanism disposed between the main frame and the seat for controlling the seat to remain level during swing.

In some embodiments, the main frame has a first pivot portion, the seat has a second pivot portion, and the first pivot portion and the second pivot portion are pivotally connected to the swing bracket assembly, respectively.

When the swing bracket assembly swings in one direction around the first pivot portion by a first angle, the seat swings in the other opposite direction around the second pivot portion by the first angle under the action of the seat holding mechanism.

In some embodiments, the swing bracket assembly includes a swing housing, and the first pivot portion and the second pivot portion are both pivotally connected to the swing housing.

In some embodiments, the seat retaining mechanism is mounted on the swing bracket assembly and is connected between the first pivot and the second pivot.

In some embodiments, the first pivot includes a first tooth and the second pivot includes a second tooth; the seat retaining mechanism includes a gear train, and the first tooth portion and the second tooth portion are respectively engaged with the gear train.

In some embodiments, the main frame includes a fourth mounting housing, and the swing housing is provided with a first receiving portion.

The first pivoting part comprises a mounting part and a first pivoting ring; the installation part is arranged on the fourth installation shell, and is sleeved with the first pivot ring and can not rotate relative to the first pivot ring; the first pivot ring is sleeved in the first accommodating part.

In some embodiments, a first tooth portion is formed on at least a portion of the outer peripheral wall of the first pivot ring, and the second pivot portion includes a second tooth portion, and the first tooth portion is engaged with the second gear through a gear train.

In some embodiments, the swing case is provided with a first receiving portion including a first pivot ring sleeved in the first receiving portion.

The child carrier further includes a first axial stop mechanism for limiting axial movement of the first pivot ring relative to the swing housing.

In some embodiments, the first axial limiting mechanism includes a limiting step and an elastic clamping block disposed on a wall body of the first accommodating portion, and the first pivot ring is clamped between the limiting step and the elastic clamping block.

In some embodiments, a first guide groove is formed in the peripheral wall of the first pivot ring, and the elastic clamping block is in sliding fit with the first guide groove in the process of installing the first pivot ring and the swing shell; the groove depth and/or the width of the first guide groove gradually become larger along the installation direction of the first pivot ring.

In some embodiments, the child carrier further comprises a first swing limit mechanism for limiting a swing angle of the swing housing relative to the main frame.

The first swing limiting mechanism includes: the first groove is arranged on one of the wall body of the first accommodating part and the peripheral wall of the first pivot ring; the first resisting part is arranged on the other of the wall body of the first accommodating part and the peripheral wall of the first pivot ring, and extends into the first groove; the first abutment selectively abuts against both end walls of the first groove when the swing case swings.

In some embodiments, the mounting portion has a convex cylindrical shape, and a convex rib and a second guide groove which are in concave-convex fit with each other are disposed between the mounting portion and the first pivot ring.

The mounting part is the protruding cylindricality, the periphery wall of mounting part is provided with first elastic arm, first elastic arm has the abrupt finger, the inner peripheral wall of first pin joint ring is provided with the block, the block be used for with abrupt finger supports and leans on, in order to prevent first pin joint ring with mounting part separation.

In some embodiments, the swing case is provided with a second receiving portion.

The second pivoting part comprises a second pivoting ring which is fixedly connected with the seat; the second pivot ring is sleeved in the second accommodating part.

In some embodiments, the second teeth are formed on at least part of the outer peripheral wall of the second pivot ring, and the first pivot includes first teeth, and the second teeth are engaged with the first teeth through a gear system.

In some embodiments, the child carrier further comprises a second axial stop mechanism for limiting axial movement of the swing housing relative to the second pivot ring.

In some embodiments, the second axial limiting mechanism includes a second elastic arm located in the second accommodating portion, and the second elastic arm is clamped with an edge of the inner hole after passing through the inner hole of the second pivot ring.

In some embodiments, the child carrier further comprises a second swing limit mechanism for limiting a swing angle of the seat relative to the swing housing.

In some embodiments, the swing case is provided with a second receiving portion including a second pivot ring sleeved in the second receiving portion.

The second swing limiting mechanism comprises: the second groove is arranged on one of the wall body of the second accommodating part and the peripheral wall of the second pivot ring; the second resisting part is arranged on the other one of the wall body of the second accommodating part and the outer peripheral wall of the second pivot ring; the second resisting part stretches into the second groove; the second abutment selectively abuts against both end walls of the second groove when the swing case swings.

In some embodiments, the child carrier further comprises a fourth swing lock mechanism for locking or unlocking the swing of the seat.

The gear transmission system comprises a transmission gear, and a limiting groove is formed in the transmission gear.

The fourth swing locking mechanism is mounted on the swing shell and comprises a fourth lock release piece and a locking piece, the locking piece is suitable for being inserted into the limiting groove, and the fourth lock release piece is operatively connected with the locking piece so as to drive the locking piece to be separated from the limiting groove.

In some embodiments, the fourth swing lock mechanism further comprises a drive member on which the lock block is mounted, the fourth release lock driving the lock block via the drive member.

In some embodiments, the fourth release lock is in sliding engagement with the swing housing, the drive is in sliding engagement with the swing housing, and the sliding directions of the fourth release lock and the drive intersect.

In some embodiments, the driver has a third connecting hole with a third sloped wall.

The swing case has a seventh elongated hole, and the fourth release lock has an operating portion and a third cylinder extending from the operating portion, the third cylinder passing through the seventh elongated hole into the third connection hole.

When the fourth lock release piece moves from the locking position to the lock release position, the third cylinder pushes the third inclined wall, so that the driving piece drives the locking piece to be separated from the limiting groove.

In some embodiments, one end of the third inclined wall has a third limiting portion, and the third limiting portion is used for being clamped with the third column body, so as to keep the fourth lock release piece in the lock release position.

The wall of the seventh elongated hole is provided with an elastic claw which clamps the third cylinder when the fourth lock release member moves to the locking position so as to hold the fourth lock release member in the locking position.

In some embodiments, the drive member includes oppositely disposed first and second sides and a third side connected between the first and second sides.

The transmission gear is located between the first side portion and the second side portion, and the locking piece is arranged on the third side portion.

In some embodiments, the fourth swing lock mechanism further includes a fourth elastic element for driving the lock block to be inserted into the limit groove.

In some embodiments, the drive gear includes a third tooth portion engaged with the first tooth portion and a fourth tooth portion engaged with the second tooth portion, the limit slot being located between the third tooth portion and the fourth tooth portion.

In some embodiments, the first pivot includes a first pivot ring disposed in the swing housing and the second pivot includes a second pivot ring disposed in the swing housing.

The seat retention mechanism includes a first lasso that is sleeved over the first pivot ring and the second pivot ring.

In some embodiments, a first ring groove is provided on the outer circumferential wall of the first pivot ring, the first lasso bypasses the first ring groove, and a first positioning mechanism is provided between the first lasso and the first pivot ring.

The outer peripheral wall of the second pivot ring is provided with a second annular groove, the first lasso bypasses the second annular groove, and a second positioning mechanism is arranged between the first lasso and the second pivot ring.

In some embodiments, the seat retention mechanism includes an intermediate piece disposed on the swing housing, the first pivot includes a first pivot ring disposed in the swing housing, and the second pivot includes a second pivot ring disposed in the swing housing.

The seat retention mechanism further includes a second lasso that is nested on one location of the intermediate member and the first pivot ring and a third lasso that is nested on the other location of the intermediate member and the second pivot ring.

In some embodiments, the outer peripheral wall of the first pivot ring is provided with a third annular groove, the outer peripheral wall of the intermediate member is provided with a fourth annular groove and a fifth annular groove which are arranged at intervals in the axial direction, and the outer peripheral wall of the second pivot ring is provided with a sixth annular groove.

The second lasso bypasses the third ring groove and the fourth ring groove, and the third lasso bypasses the fifth ring groove and the sixth ring groove.

In some embodiments, a third positioning mechanism is disposed between the second lasso and the first pivot ring, and a fourth positioning mechanism is disposed between the second lasso and the intermediate member.

A sixth positioning mechanism is arranged between the third lasso and the sixth annular groove.

In some embodiments, a fifth locating mechanism is disposed between the third lasso and the fifth ring groove.

In some embodiments, the seat retention mechanism comprises: a sliding pin and a sliding groove.

A slide pin provided on one of the main frame and the seat.

And a sliding groove provided on the other of the main frame and the seat.

The sliding pin and the sliding groove are in sliding fit when the swing bracket assembly swings relative to the main frame, and the seat is controlled to be kept horizontal in the swinging process.

In some embodiments, the sliding pin is parallel to the swing axis of the seat and/or the sliding slot is an arcuate slot.

In some embodiments, a locking hole is provided in the sliding groove.

The sliding pin is provided with a locking position extending into the lock hole and a releasing position retreating from the lock hole; locking the seat in swinging when the slide pin is in the locked position; when the sliding pin is in the lock release position, the swing of the seat is released.

In some embodiments, the child carrier further comprises a fifth swing lock mechanism for controlling the extension and retraction of the slide pin to lock or unlock the swing of the seat.

In some embodiments, the fifth swing lock mechanism includes a fifth release for driving the sliding pin to withdraw from the lock hole and a fifth elastic element for driving the sliding pin to insert into the lock hole.

In some embodiments, the sliding pin is provided with a second annular flange in the middle, which divides the sliding pin into a first part for insertion into the locking hole and a second part over which the fifth elastic element is fitted.

The fifth release lock has an eighth elongated hole, the hole wall of which is formed with a second stop table extending obliquely, and the second annular flange is clamped between the second stop table and the fifth elastic element.

In some embodiments, the wall of the eighth elongate hole is provided with a catch for cooperating with the sliding pin to retain the fifth release member in the release position.

In some embodiments, the main frame includes a fourth mounting housing.

The swing support assembly is provided with a first adapter, and the swing support assembly is pivotally connected with the first adapter.

The first adapter is clamped with the fourth installation shell.

In some embodiments, the fourth mounting housing includes a first snap recess.

The first adapter comprises a first clamping table, the first clamping table is suitable for being inserted into the first clamping concave part, and a first joint mechanism is arranged between the first clamping table and the first clamping concave part.

In some embodiments, the main frame includes a fourth mounting housing.

The seat retaining mechanism comprises a sliding pin and a sliding groove, the sliding pin is installed on the second adapter, the second adapter is clamped with the fourth installation shell, the sliding groove is formed in the seat, and the sliding pin is arranged in the sliding groove in a penetrating mode.

In some embodiments, the fourth mounting housing includes a second snap recess.

The second adapter comprises a second clamping table, the second clamping table is suitable for being inserted into the second clamping concave part, and a second joint mechanism is arranged between the second clamping table and the second clamping concave part.

In some embodiments, the sliding pin is a bolt, and a tail end of the bolt passes through the second adapter and the sliding groove and then is connected with the nut.

In another aspect of the present application, there is provided a swing mechanism comprising: the fixed part, the swing arm and the abutting part.

The fixing piece is provided with a first limiting surface and a second limiting surface.

The swing arm has a pivot that is pivotable relative to the mount.

The abutting piece is connected with the pivot and is positioned between the first limiting surface and the second limiting surface, and the abutting piece is abutted with the first limiting surface and the second limiting surface to limit the swing angle of the swing arm.

In some embodiments, the securing member is provided with a limit slot.

The first limiting surface and the second limiting surface are formed on the side wall of the limiting groove; or a limiting piece is arranged in the limiting groove, and the first limiting surface and the second limiting surface are formed on the limiting piece.

In some embodiments, the extending direction of the limit groove is perpendicular to the axial direction of the pivot, and the limit groove is provided with a notch.

The side walls of the limiting groove comprise a first side wall and a second side wall which are parallel to each other, and the first limiting surface and the second limiting surface are formed on the first side wall and the second side wall.

The abutting piece is inserted into the limiting groove through the notch and comprises a first pair of parallel surfaces and a second pair of parallel surfaces.

And when the second pair of parallel surfaces swing to abut against the second limiting surface, the swing arm is limited to swing continuously in a second direction, and the direction of the first direction is opposite to that of the second direction.

In some embodiments, the extending direction of the limiting groove is perpendicular to the axial direction of the pivot, and the position of the limiting piece in the limiting groove is adjustable.

The limiting piece is provided with an opening for the pivot to pass through, and the opening comprises a first hole part and a second hole part; the first hole portion includes a first wall and a second wall, the first and second stopper surfaces are formed on the first and second walls, and the second hole portion is for engagement with the abutment to lock the swing arm.

In some embodiments, the extending direction of the limiting groove is parallel to the axial direction of the pivot shaft.

The stop includes a first region having the first stop surface and the second stop surface and a second region adapted to engage the abutment to lock the swing arm.

The outer periphery of the abutment is provided with at least one first slot through which the at least one arm passes, the first zone being adapted to oscillate in the corresponding first slot.

The abutment is further provided with at least one second groove portion, the second zone being adapted to engage with a corresponding said second groove portion.

In some embodiments, the child carrier further comprises a drive wheel sleeved on the pivot and abutting against the force-bearing plate.

In still another aspect of the present application, there is provided a seat connection structure including: the device comprises a support frame, a first positioning groove, a second positioning groove and a locking device.

The support frame includes relative first bracing piece and the second bracing piece that sets up.

The first positioning groove and the second positioning groove are arranged on the first surface of a seat, the first positioning groove accommodates the first supporting rod, and the second positioning groove accommodates the second supporting rod.

The locking device comprises a first blocking piece, a second blocking piece and an elastic element; the first catch and the second catch are both in sliding fit with the seat, and the elastic element is used for driving the first catch and the second catch to a locking position.

In some embodiments, the second face of the seat is provided with a first runner intersecting the first detent and a second runner intersecting the second detent; the second face of the seat and the first face of the seat face away from each other.

The first baffle is slidably disposed in the first chute, and the second baffle is slidably disposed in the second chute.

In some embodiments, the seat is further provided with a third chute through which the first chute communicates with the second chute.

The locking device also comprises a connecting frame; the connecting frame is arranged in the third sliding groove, a first surface and a second surface which are bent downwards relative to the connecting frame are respectively arranged at two ends of the connecting frame, the first blocking piece is connected with the first surface, and the second blocking piece is connected with the second surface.

The bottom wall of the third sliding groove is provided with a fourth long hole, the connecting frame is provided with a fastener, and the first end of the fastener penetrates out of the fourth long hole.

In some embodiments, the first face of the seat is further provided with a fourth runner, the third runner being adjacent to the fourth runner in the direction of extension of the fastener, and the fourth runner being located between the first runner and the second runner.

The locking device further comprises a third lock release member which is accommodated in the fourth sliding groove, and the first end of the fastening piece is connected with the third lock release member.

The elastic element is clamped between the side wall of the fourth chute and the third locking piece.

In some embodiments, the first end of the third release member has a first receiving groove for receiving an end of the elastic element, and the second end of the third release member is provided with a pressing recess.

And a shielding plate is arranged in a part area of the fourth sliding groove, and the shielding plate shields the elastic element.

In some embodiments, the locking device further comprises a second linkage operably connected to the first and second catches, wherein when one of the first and second catches is pushed to release one of the first and second support bars, the other of the first and second catches is pushed to release the other of the first and second support bars under the action of the second linkage.

In some embodiments, the second face of the seat is provided with a total runner intersecting the first and second locating slots, respectively; the second face of the seat and the first face of the seat face away from each other.

The first and second stops are slidably disposed in the overall chute.

In some embodiments, the first end of the first catch and the first end of the second catch, which are remote from each other, are used to lock the first support bar and the second support bar, respectively.

The second end of the first stopper and the second end of the second stopper, which are close to each other, are provided with a first connection protrusion and a second connection protrusion, respectively.

The second linkage piece is a rod piece, the first end of the second linkage piece is pivotally connected with the first connection lug, and the second end of the second linkage piece is pivotally connected with the second connection lug.

In some embodiments, the resilient element comprises a first spring and a second spring; the first spring is disposed between the end of the first connection bump and the second stopper, and the second spring is disposed between the end of the second connection bump and the first stopper.

In some embodiments, the first end of the second linkage is provided with a first post and the second end is provided with a second post.

The first connecting lug is provided with a fifth long hole in sliding fit with the first convex column, and the second connecting lug is provided with a sixth long hole in sliding fit with the second convex column.

The first connecting projection is provided with a first concave part, the first end of the second linkage piece is embedded into the first concave part, and the first convex column passes through the first concave part and enters the fifth long hole.

The second connection projection is provided with a second recess in which the second end of the second linkage is embedded, through which the second stud passes into the sixth elongated hole.

In some embodiments, the side wall of the total chute is provided with a first wedge block for pressing against the first stopper and a second wedge block for pressing against the second stopper.

The first end of the first baffle piece and the first end of the second baffle piece which are far away from each other are respectively provided with a pushing inclined plane.

Drawings

Fig. 1 schematically shows a perspective view of a child carrier provided according to a first embodiment of the utility model;

FIG. 2 schematically illustrates a side view of a child carrier provided in accordance with a first embodiment of the present utility model;

Fig. 3 schematically illustrates a perspective view of a seat of a child carrier provided according to a first embodiment of the present utility model, wherein one side rail is omitted;

Fig. 4 schematically shows a perspective view of a main frame of a child carrier provided according to a first embodiment of the utility model;

FIG. 5 schematically illustrates a partial cross-sectional view of A-A in FIG. 4;

FIG. 6 schematically illustrates a partial cross-sectional view at a pivot of a child carrier provided in accordance with a first embodiment of the utility model;

FIG. 7 schematically illustrates an exploded configuration of a connection of a support tube and a swing arm of a child carrier provided in accordance with a first embodiment of the present utility model in one direction;

FIG. 8 schematically illustrates a partial perspective view of a first mounting housing and a first release latch of a child carrier provided in accordance with a first embodiment of the present utility model;

Fig. 9 schematically illustrates an exploded structure of a connection of a support tube and a swing arm of a child carrier provided according to a first embodiment of the present utility model in another direction;

Fig. 10 schematically illustrates a perspective view of a pivot shaft, a first sleeve, an abutment and a first limiting structure of a child carrier provided according to a first embodiment of the present utility model;

FIG. 11 schematically illustrates a cross-sectional view B-B of FIG. 6 with the first release member in the release position and the swing arm swung to an extreme position;

FIG. 12 schematically illustrates a cross-sectional view B-B of FIG. 6 with the first release member in the release position and the swing arm swung to another extreme position;

FIG. 13 schematically illustrates a cross-sectional view B-B of FIG. 6 with the first release member in a locked position and the swing of the swing arm locked;

Fig. 14 schematically illustrates a perspective view of a main frame of a child carrier provided according to a second embodiment of the utility model;

FIG. 15 schematically illustrates a partial cross-sectional view at a pivot of a child carrier provided in accordance with a second embodiment of the utility model;

fig. 16 schematically illustrates an exploded structure of a connection between a support tube and a swing arm of a child carrier provided according to a second embodiment of the present utility model in one direction;

FIG. 17 schematically illustrates an exploded configuration of a connection of a support tube and a swing arm of a child carrier in another direction provided in accordance with a second embodiment of the present utility model;

Fig. 18 schematically illustrates a side view of a joint of a support tube and a swing arm of a child carrier provided according to a second embodiment of the present utility model, wherein a fourth housing part is omitted for convenience of illustration, and the second unlocking member is in the unlocking position;

Fig. 19 schematically illustrates a side view of a joint of a support tube and a swing arm of a child carrier provided according to a second embodiment of the utility model, wherein the fourth housing part is omitted for ease of illustration, and the second release lock is in a locked position;

FIG. 20 schematically illustrates a cross-sectional view C-C of FIG. 15, with the second release member in the release position;

FIG. 21 schematically illustrates a cross-sectional view C-C of FIG. 15, with the second release member in a locked position;

fig. 22 schematically shows an exploded view in a top view of a seat attachment structure provided according to a third embodiment of the utility model;

fig. 23 schematically illustrates an exploded view of a seat attachment structure provided in accordance with a third embodiment of the present utility model in a bottom view;

Fig. 24 schematically illustrates a partial bottom view of a seat attachment structure provided in accordance with a third embodiment of the present utility model, wherein the locking device is in a locked state;

FIG. 25 schematically shows a D-D sectional view of FIG. 24;

Fig. 26 schematically shows a partial cross-sectional view of a seat connection structure provided according to a third embodiment of the utility model, wherein the locking device is in a unlocked state;

FIG. 27 schematically illustrates a cross-sectional E-E view of FIG. 26;

fig. 28 schematically illustrates an exploded view in a top view of a seat attachment structure provided according to a fourth embodiment of the present utility model;

fig. 29 schematically illustrates an exploded view of a seat attachment structure provided according to a fourth embodiment of the present utility model in a bottom view;

Fig. 30 schematically illustrates a partial bottom view of a seat attachment structure provided in accordance with a fourth embodiment of the present utility model, wherein the locking device is in a locked state;

FIG. 31 schematically illustrates a cross-sectional F-F view of FIG. 30;

Fig. 32 schematically shows a partial cross-sectional view of a seat connection structure provided according to a fourth embodiment of the utility model, in which the locking device is in a unlocked state;

FIG. 33 schematically illustrates a G-G cross-sectional view of FIG. 32;

FIG. 34 schematically illustrates a side view of a child carrier provided in accordance with a fifth embodiment of the present utility model, wherein the swing bracket assembly is in an initial position;

FIG. 35 schematically illustrates a side view of a child carrier provided in accordance with a fifth embodiment of the present utility model, wherein the swing bracket assembly swings forward;

FIG. 36 schematically illustrates a perspective view of a child carrier provided in accordance with a fifth embodiment of the present utility model, wherein the swing bracket assembly swings rearward;

fig. 37 schematically illustrates a perspective view of a main frame of a child carrier provided according to a fifth embodiment of the utility model;

FIG. 38 schematically illustrates a cross-sectional view K-K in FIG. 37, wherein the swing of the swing arm is locked;

FIG. 39 schematically illustrates a cross-sectional view K-K in FIG. 37, wherein the swing lock of the swing arm is released;

Fig. 40 schematically illustrates an exploded perspective view of a joint of a support tube and a swing arm of a child carrier provided according to a fifth embodiment of the utility model;

Fig. 41 schematically illustrates a perspective view of a mount for a child carrier provided according to a fifth embodiment of the present utility model;

fig. 42 schematically illustrates a perspective view of an abutment of a child carrier provided in accordance with a fifth embodiment of the present utility model;

FIG. 43 schematically illustrates a perspective view of a stopper of a child carrier provided in accordance with a fifth embodiment of the present utility model;

FIG. 44 schematically illustrates a partial perspective view of an abutment, a stop and a swing arm of a child carrier provided in accordance with a fifth embodiment of the present utility model;

FIG. 45 schematically illustrates a perspective view of an abutment, a stop and a swing arm of a child carrier provided in accordance with a fifth embodiment of the utility model, wherein the stop is in a first position;

FIG. 46 schematically illustrates a perspective view of an abutment, a stop and a swing arm of a child carrier provided in accordance with a fifth embodiment of the utility model, wherein the stop is in a second position;

Fig. 47 schematically shows a side view of a drive wheel of a child carrier provided according to a fifth embodiment of the utility model;

fig. 48 schematically illustrates a perspective view of a driving wheel of a child carrier provided according to a fifth embodiment of the present utility model;

Fig. 49 schematically illustrates a perspective view of a pressing member of a child carrier provided according to a fifth embodiment of the present utility model;

Fig. 50 schematically illustrates a bottom perspective view of a seat of a child carrier provided in accordance with a fifth embodiment of the present utility model;

FIG. 51 schematically illustrates a perspective view of yet another embodiment of an abutment for a child carrier provided in accordance with a fifth embodiment of the present utility model;

FIG. 52 schematically illustrates a perspective view of yet another embodiment of a limiter for a child carrier provided in accordance with a fifth embodiment of the present utility model;

FIG. 53 schematically illustrates a cross-sectional view of M-M in FIG. 37;

FIG. 54 schematically illustrates a partial cross-sectional view of a junction of a seat and a connector of a child carrier provided in accordance with a fifth embodiment of the present utility model;

Fig. 55 schematically illustrates a perspective view of a child carrier provided according to a sixth embodiment of the utility model;

fig. 56 schematically illustrates a perspective view of a main frame of a child carrier provided according to a sixth embodiment of the utility model;

FIG. 57 is an enlarged view of portion I of FIG. 56;

FIG. 58 schematically illustrates a perspective view of a swing bracket assembly and its internal components of a child carrier provided in accordance with a sixth embodiment of the present utility model;

FIG. 59 is a partial perspective view schematically illustrating a guardrail and a second pivot portion of a child carrier provided in accordance with a sixth embodiment of the present utility model;

FIG. 60 schematically illustrates a perspective view of a seat and swing bracket assembly of a child carrier provided in accordance with a sixth embodiment of the present utility model;

FIG. 61 schematically illustrates a front view of a seat and swing bracket assembly for a child carrier provided in accordance with a sixth embodiment of the utility model;

FIG. 62 shows a V-V section view of FIG. 61 with the fourth release member in the release position;

FIG. 63 shows a V-V section view of FIG. 61 with the fourth release in the locked position;

FIG. 64 schematically illustrates an exploded view of a swing bracket assembly and its internal components of a child carrier provided in accordance with a sixth embodiment of the present utility model in one orientation;

FIG. 65 schematically illustrates an exploded view of a swing bracket assembly and its internal components of a child carrier provided in accordance with a sixth embodiment of the present utility model in another orientation;

FIG. 66 schematically illustrates a side view of a child carrier provided in accordance with a sixth embodiment of the present utility model, wherein the seat swings to a lowermost position;

Fig. 67 schematically illustrates the positional relationship of the first pivot portion, the transmission gear, and the second pivot portion in fig. 66;

FIG. 68 schematically illustrates a side view of a child carrier provided in accordance with a sixth embodiment of the present utility model, wherein the seat swings rearward;

FIG. 69 schematically illustrates the positional relationship of the first pivot, the drive gear, and the second pivot of FIG. 68;

FIG. 70 schematically illustrates a side view of a child carrier provided in accordance with a sixth embodiment of the present utility model, wherein the seat swings forward;

Fig. 71 schematically illustrates a positional relationship of the first pivot portion, the transmission gear, and the second pivot portion in fig. 70;

FIG. 72 schematically illustrates a side view of a seat and swing bracket assembly of a child carrier provided in accordance with a sixth embodiment of the utility model, wherein the fourth release lock is in a locked position;

FIG. 73 schematically illustrates a side view of a child carrier provided in accordance with a seventh embodiment of the present utility model;

Fig. 74 schematically illustrates a rear perspective view of a child carrier provided in accordance with a seventh embodiment of the present utility model;

Fig. 75 schematically illustrates a perspective view of a child carrier provided according to a seventh embodiment of the present utility model with a main frame and a seat separated;

Fig. 76 schematically illustrates an exploded view of a first pivoting portion of the main frame illustrated in fig. 75;

FIG. 77 schematically illustrates an assembled view of the swing bracket assembly and the first pivot ring of FIG. 73;

FIG. 78 schematically illustrates a cross-sectional view of U1-U1 of FIG. 73, further illustrating an enlarged view of the slide pin in the slide slot and not inserted into the locking aperture;

Fig. 79 schematically illustrates an enlarged view of the sliding pin of fig. 78 inserted into a locking hole;

FIG. 80 schematically illustrates an exploded view of a portion of the components of the child carrier illustrated in FIG. 73, showing one configuration of a swing bracket assembly corresponding to the swing bracket assembly illustrated in FIG. 77;

FIG. 81 schematically illustrates an exploded view of the components shown in FIG. 80 in another orientation, with the seat omitted from FIG. 81;

FIG. 82 schematically illustrates a partial internal structure of the fourth mounting housing illustrated in FIG. 80;

FIGS. 83-85 schematically illustrate side views of a child carrier including a cross-sectional view at U3-U3 of FIG. 78, illustrating a seat swing process, wherein the swing bracket assembly corresponds to the swing bracket assembly illustrated in FIGS. 80 and 81;

FIG. 86 schematically illustrates a partial cross-sectional view of U2-U2 of FIG. 73, showing a modified configuration of the swing bracket assembly;

FIG. 87 schematically illustrates a cross-sectional view of U4-U4 of FIG. 86;

FIG. 88 schematically illustrates an exploded view of a seat portion, swing bracket assembly, first pivot ring of the child carrier illustrated in FIG. 86;

FIG. 89 schematically illustrates an exploded view of the components shown in FIG. 88 in another orientation, with the seat omitted from FIG. 89;

Fig. 90 to 92 schematically show side views of a child carrier having the seat shown in fig. 87, illustrating a swinging process of the seat, the swinging housing being omitted;

FIG. 93 schematically illustrates a partial cross-sectional view of U2-U2 of FIG. 73, showing another variation of the swing bracket assembly;

FIG. 94 schematically illustrates a cross-sectional view of U5-U5 of FIG. 93;

FIG. 95 schematically illustrates an exploded view of a seat portion, swing bracket assembly, first pivot ring of the child carrier illustrated in FIG. 93;

FIG. 96 schematically illustrates an exploded view of the components shown in FIG. 95 in another orientation, with the seat omitted from FIG. 96;

Fig. 97 to 99 schematically show side views of a child carrier having the seat shown in fig. 94, illustrating a swinging process of the seat, the swinging housing being omitted;

fig. 100 schematically illustrates a rear perspective view of a child carrier provided according to an eighth embodiment of the utility model;

Fig. 101 schematically illustrates a perspective view of the main frame in fig. 100, wherein a further enlarged partial view of the fourth mounting housing is shown;

FIG. 102 schematically illustrates a perspective view of the seat of FIG. 100;

FIG. 103 schematically illustrates an exploded view of the seat, swing bracket assembly, first adapter, second adapter, first swing lock mechanism illustrated in FIG. 102;

FIG. 104 schematically illustrates an exploded view of the components shown in FIG. 103 in another orientation, with the seat and second adapter omitted from FIG. 104;

FIG. 105 schematically illustrates an assembled view of the swing bracket assembly, first adapter, first swing lock mechanism of FIG. 100;

FIG. 106 schematically illustrates a top view of the first swing lock mechanism of FIG. 105;

FIG. 107 schematically illustrates a cross-sectional view of U6-U6 of FIG. 105;

FIG. 108 schematically illustrates a view of the second adapter shown in FIG. 102 connected to a seat;

FIG. 109 schematically illustrates a rear perspective view of a child carrier provided in accordance with a ninth embodiment of the present utility model;

FIG. 110 schematically illustrates a rear perspective view of the seat and swing bracket assembly of FIG. 109;

FIG. 111 schematically illustrates an exploded view of a seat portion, swing bracket assembly, first adapter, second adapter, first swing lock mechanism of the child carrier illustrated in FIG. 110;

FIG. 112 schematically illustrates an exploded view of the components shown in FIG. 111 in another orientation, with the seat and second adapter omitted from FIG. 112;

Fig. 113 schematically illustrates a perspective view of the swing case in fig. 112;

FIG. 114 schematically illustrates an assembled view of the swing bracket assembly, first adapter, first swing lock mechanism of FIG. 112;

FIG. 115 shows a side view of the component shown in FIG. 114 with the first release member in the release position;

FIG. 116 illustrates a cross-sectional view of U7-U7 of FIG. 115, further illustrating an enlarged partial view of a seventh positioning mechanism; and

Fig. 117 shows a side view of the component shown in fig. 114 with the first release member in the locked position.

Reference numerals illustrate:

A main frame, a 1a first engaging recess, a 1b second engaging recess, a 101 front foot rest, a 102 rear foot rest, a 1031 front cross bar, a 1032 rear cross bar, a 104 folding member, a 107 first rotating member, a 1071 first engaging table, a 1072 round table, a 108 third axial limiting mechanism, a 10a pivoting recess, a 11 support tube, a 110 first through hole, 1101 holes, 1105 flanges, a 114 second axial guiding portion, a 15 first mounting case, a 150 first sleeve portion, 1501 holes, a 1503 third through hole, a 1505 first opening, a 1506 second opening, a 151 first case portion, a 152 second case portion, 1520 mounting holes, 1521 structures, 153 return springs, 154 operating buttons, 1541 pins, 1542 mounting holes, a 16 second mounting case, 160 second sleeve portions, 1601 through holes, 1605 third openings, 1606 fourth openings, 161 third case portions, 162 fourth case portions, 1621 structures, 163 return springs, 164 operating buttons, 1641 pins, 1642 mounting holes, 169, a rotating shaft, 17 third mounting case portions, 170 third sleeve portion, 1701 limit recess, 17011 first limit wall, 17012 second limit wall, 1702 limit recess, 17021 third limit arm, 17022 fourth limit arm, 1703 aperture, 1704 aperture, 171 fifth housing portion, 1712 sleeve, 172 sixth housing portion, 1721 aperture seat, 174 knob, 178 first engagement mechanism, 1781 recess, 1782 boss, 179 screw, 18 fourth mounting housing, 180 fourth sleeve portion, 181 seventh housing portion, fourth through hole, 1811 spindle, 1812 hollow post, 182 eighth housing portion, 1820 mounting aperture, 183 first pivot portion, 183a first positioning mechanism, 183b third positioning mechanism, 18301 positioning slot, 18302 groove, 18303 positioning slot, 1831 first tooth portion, 1832 mounting portion, 18321 second guide slot, 18322 first spring arm, 18323 finger, 1833 first ring, 1833a first ring slot, 1833b third ring slot, 18331 first guide slot, 18332 snap-in rib 18333, 184 operating buttons, 189 screws;

A2 swing bracket assembly, a 2a first lasso, a 2b second lasso, a 2c third lasso, a 201 first sleeve, a 201a clip, a 2011 axial guide slot, a 202 second sleeve, a 202a clip, a 203a clip, a 204a clip, a 205a clip, a 206a clip, a 208 second adapter, a 2081 second clip station, a 2082 protective sleeve, a 21 swing arm, a 2101 first detent recess, a 2102 first step, a 2103 second step, a 2105 third step, a 211 pivot, a 2110 center hole, a 2111 first flat head, a 2113 flat head connection, a 2115 prism, a 2116 clip slot, a 2117 detent, a 219 pivot, a 22 support bracket, a 221 first support bar, a 222 second support bar, a 223 first rail, a 224 second rail, a 225 third rail, a 23 swing housing, a 230 mounting hole, a 2301 cover, a 2302 enclosure, a 2303 opening, a 2305 first rail, a 2306 second rail, 23061 diagonal guide wall, 23071 slot configuration, 23072 opening, 2308 guide configuration, 2309 support post, 231 first receiving portion, 2311 first axial stop, 23111 stop step, 23112 resilient clip, 2312 second axial stop, 23121 second resilient arm, 231211 finger, 232 second receiving portion, 233 seventh elongated hole, 2331 resilient pawl, 235 intermediate, 235a fourth detent, 235b fifth detent, 23501 fourth groove, 23502 fifth groove, 2351 post, 2352 wheel, 2352a detent, 2352b fifth detent, 26 tab, 260 third flat hole, 27 clip, 278 second detent, 2781 recess, 2782 boss, 28 connector, 280 boss, 281 clip connection, 2810 mounting hole, 29 auxiliary swing arm, 291 pivot, 292 pivot, 293 boss, 295 fastener;

A seat, 30 lock holes, 304 total slide, 305 base, 306 guardrail, 3060 positioning slot, 3062 groove, 30321 snap hole, 307 backrest, 3071 seat portion, 308 dinner plate, 309 foot rest, 3091 pivot, 31 first positioning slot, 32 second positioning slot, 33 first slide, 331 third positioning slot, 332 fourth positioning slot, 333 fifth positioning slot, 34 second slide, 35 third slide, 351 fourth elongated hole, 36 fourth slide, 361 shutter, 38 second pivot portion, 38a second positioning mechanism, 38b sixth positioning mechanism, 381 second tooth portion, 382 second pivot ring, 382a second ring slot, 382b sixth ring slot, 3820 inner hole, 38201 positioning slot, 38202 positioning slot, 39 seat retaining mechanism, 391 gear train, 3910 limiting slot, 3911 drive gear, 39111 third tooth portion, 39112 fourth tooth portion, 392 slide pin, 3921 first portion, 3922 second portion, 3923 second annular flange, 3925, 393 slide nut;

A 4 swing limit mechanism, a 401 first side wall, a 402 second side wall, a 41 fixing member, a 410 second through hole, a 4101 axial guide rib, a 4106 step, a 4107 raised strip, a 4108 step, a 4109 limit flange, a 4111 first limit surface, a 4112 second limit surface, a 411 limit groove, a 41100 center hole, a 41101 notch, a 41102 groove bottom, a 41103 mounting hole, a 4113 first axial guide portion, a 41131 side wall, a 4115 guide portion, a 4117 ratchet portion, a 42 abutment member, a 420 bayonet, a 421 first pair of parallel surfaces, a 422 second pair of parallel surfaces, a 423 first flat hole, a 424 positioning hole, a 425 first plane, a 426 second plane, a 427 first groove portion, a 4271 first end wall, a 4272 second end wall, a 4273 groove bottom, a 428 second groove portion, a 43 limit member, a 43a first area, a 43b second area, a 430 opening, a1 first hole portion, a 43011 first wall, a 43012 second wall, a2 groove bottom, 7 two limit portions, a 4309, a 43050 holding recess portion, a 43050, 4351 dodge port, 436 arm, 4363 first clip, 4365 second clip, 45 second elastic element, 46 third elastic element, 47 third swing lock mechanism, 471 drive wheel, 4710 center hole, 47101 incline, 47102 incline, 4711 ratchet slot portion, 47111 first ratchet slot, 47112 second ratchet slot, 4713 bulge loop, 472 push, 4721 push portion, 4722 push portion, 47220 push arm, 47221 push step, 47222 hook portion, 47223 outer finger, 481 first swing limit mechanism, 4810 first groove, 48101 end wall, 4811 first abutment portion, 482 second swing limit mechanism, 4820 second groove, 48201 end wall, 4821 second abutment portion, 483 fourth swing lock mechanism, 4831 fourth release lock, 48311 operation portion, 48312 third cylinder, 4832 lock piece, 48320 recess, 4833 drive piece, 48330 third connection hole, 483301 third inclined wall, 483302 third side portion, 5258 third side portion, 48333, 48338 receiving holes, 4834 fourth elastic element

5 First limit structure, 51 spring clip, 52 first locating sleeve, 521 second flat hole, 522 radial through groove, 523 locating convex column

6 First swing lock mechanism, 6a fifth swing lock mechanism, 601 hole, 605 crank block mechanism, 6051 cylinder, 6052 elongated slot, 61 first release, 61a fifth release, 6101 first connection hole, 61011 first angled wall, 61012 first limit, 6102 back-off hole, 611 first elongated hole, 611a eighth elongated hole, 612 first stop table, 612a second stop table, 613 first dial, 613a fifth dial, 615 extension plate, 616a snap-on tab, 62 detent, 620 first annular flange, 6201 first cylinder, 6202 second cylinder, 621 first portion, 622 second portion, 6222 spring arm, 63 first spring element, 635 seventh positioning mechanism, 6351 rib, 6352 snap-on point, 6353 rib, 6354 snap-on point, 63a fifth spring element, 64 mounting cylinder, 01 second connection hole, 64011 second angled wall, 64012 second limit

7 Second limiting mechanism, 71 bolt, 711 tail, 712 head, 72 nut, 720 second positioning concave part

8 Second swing locking mechanism, 81 second release member, 811 second elongated hole, 812 second dial, 82 first linkage member, 821 first connecting pin, 822 third elongated hole, 83 engagement member, 830 center hole, 831 connecting lug, 8311 second connecting pin, 832 engagement protrusion, 833 avoidance portion

The locking device 9 comprises a first end 901, a first pushing inclined surface 9011, a first end 902, a second pushing inclined surface 9021, a first blocking member 91, a first connecting projection 911, a fifth elongated hole 9111, a first recess 9112, a first positioning post 9113, a third receiving groove 9115, a second blocking member 92, a second connecting projection 921, a sixth elongated hole 9211, a second recess 9212, a second receiving groove 9213, a second positioning post 9215, an elastic element 93, a first 931 spring, a second 932 spring, a 94 connecting frame, a 940 mounting hole, a first 941 face, a second 942 face, 945 fastening member 95, a third release locking member 950, a screw hole 951, a first receiving groove 952, a second 96 coupling member 96, a first 961 boss 962, a second boss 963 pivot, a first 97 wedge, and a second 98 wedge.

Detailed Description

First embodiment

Fig. 1 to 13 schematically show a child carrier provided according to a first embodiment of the present utility model. In the first embodiment, the child carrier is described as an example of a child dining chair, but the type of child carrier is not limited to the child dining chair. For example, in some alternative embodiments, the child carrier may be a child cart or other suitable product, for example. Referring to fig. 1 to 4, the child carrier may include a main frame 1, a swing bracket assembly 2, and a seat 3. The main frame 1 is supported by the ground, the swing bracket assembly 2 is connected to the main frame 1 and is swingable back and forth with respect to the main frame 1, and the seat 3 is pivotally connected to the main frame 1 through the swing bracket assembly 2 so as to be swingable back and forth with respect to the main frame 1.

It will be appreciated that the main frame 1 may take different forms depending on the type of child carrier. For example, when the child carrier is a child dining chair, the main frame 1 may be a high chair frame; when the child carrier is a stroller, the main frame 1 may be a movable carriage with rollers at the bottom. Referring to fig. 1 to 4, in the present first embodiment, a main frame 1 is a high chair frame including two front foot frames 101 arranged at intervals in the left-right direction, and two rear foot frames 102 arranged at intervals in the left-right direction. The lower ends of the two front foot rests 101 are connected by a front cross bar 1031 and the lower ends of the two rear foot rests 102 are connected by a rear cross bar 1032. The upper ends of the front foot rest 101 and the rear foot rest 102 which are positioned on the same side are connected through a folding piece 104, and the folding piece 104 can control folding or unfolding of the front foot rest 101 and the rear foot rest 102. Of course, the structure of the main frame 1 is not limited thereto, and for example, in some alternative embodiments, the front foot stand 101 and the rear foot stand 102 are fixedly connected without having a collapsed state.

A support tube 11 is provided at an upper portion of each front leg frame 101, and the support tube 11 is used for connection with the swing bracket assembly 2. Referring to fig. 1 and 4, in the present first embodiment, the support pipe 11 protrudes upward with respect to the upper end of the front foot stool 101, and the extending direction of the support pipe 11 coincides with the extending direction of the front foot stool 101. In some embodiments, the support tube 11 may be of unitary construction with the front foot rest 101, or the support tube 11 may be nested within the tubing of the front foot rest 101. When the support tube 11 is sleeved in the tube of the front foot stool 101, the support tube 11 can stretch and retract relative to the front foot stool 101, and a height adjusting structure can be arranged between the support tube 11 and the front foot stool 101 and used for locking the stretching position of the support tube 11 relative to the front foot stool 101, so that a user can conveniently adjust the height of the seat 3 supported by the swinging bracket assembly 2 according to needs. The height adjusting structure may refer to the related art, which is not the focus of the present utility model and will not be described herein. It should be noted that, although the support pipe 11 is mounted at the upper end of the front foot stool 101 in the present first embodiment, in an alternative embodiment, the support pipe 11 is not limited to being connected to the front foot stool 101, and the structure of the support pipe 11 and the position in the main frame 1 may be changed accordingly according to the modification of the structure of the main frame 1 as long as it can be pivotally connected to the swing bracket assembly 2 and achieve the corresponding function.

It should be noted that, unless explicitly specified and limited otherwise, the terms of orientation such as "front", "rear", "left", "right", etc. in the embodiments of the present utility model are based on the "front", "rear", "left", "right" orientation of the child seated in the child carrier, and the "front", "rear" direction is schematically shown by arrow H, P, and the "left", "right" direction is schematically shown by arrow L, R. These directional terms are used only to make the description of the embodiments of the present utility model clearer and are not used to unduly limit the scope of the present utility model.

An exemplary construction of the swing bracket assembly 2 is shown in fig. 7. The swing bracket assembly 2 may be made of, for example, a metal rod, and includes a support frame 22 and swing arms 21 located at left and right sides of the support frame 22. The support frame 22 may have a bent structure including, for example, a first support bar 221, a second support bar 222, a first cross bar 223, a second cross bar 224, and a third cross bar 225. The first support bar 221 and the second support bar 222 are disposed opposite to each other, and in some embodiments, the first support bar 221 and the second support bar 222 are disposed at intervals in the left-right direction, and extend in the front-rear direction in parallel to each other. The first cross bar 223 is connected between the rear end of the first support bar 221 and the rear end of the second support bar 222, the second cross bar 224 is connected to the front end of the first support bar 221 and to the swing arm 21 on the right side, and the third cross bar 225 is connected to the front end of the second support bar 222 and to the swing arm 21 on the left side. The upper end of each swing arm 21 is pivotally connected to the support pipe 11 on the corresponding side so as to be capable of swinging back and forth. Of course, in alternative embodiments, the swing bracket assembly 2 may have a variety of embodiments, as long as it has a swing arm 21 connected to support pipes 11 on both sides and is capable of supporting the seat 3.

Referring to fig. 1, the seat 3 is supported by a support frame 22 and is defined in position in the left-right direction by two swing arms 21. As the swing arm 21 swings back and forth, the seat 3 swings therewith, so that the child carrier has a swing mode (which may also be referred to as a rocking chair mode).

Referring to fig. 1, 3, 23 and 24, an exemplary structure of the seat 3 is shown in the present first embodiment. The seat 3 comprises a base 305, two guardrails 306, a backrest 307, a dinner plate 308 or a front armrest. Two guardrails 306 are provided on the left and right sides of the base 305, a backrest 307 is mounted on the base 305 and positioned in the middle of the two guardrails 306, and a dinner plate 308 or a front armrest is mounted on the two guardrails 306 and positioned in front of the backrest 307. In some embodiments, the bottom of the backrest 307 may also be provided with a seat portion 3071, the seat portion 3071 being integrally formed with the backrest 307 and secured over the base 305, for example, to secure the backrest 307 to the base 305. The front of the base 305 may be provided with a downwardly extending foot rest 309, which foot rest 309 may support the calf and foot of the child. The upper end of the foot rest 309 is pivotally connected to the seat portion 3071, for example, by a pivot 3091, such that the foot rest 309 can be flipped over toward the bottom surface of the seat portion 3071 when the back 307, seat portion 3071, and foot rest 309 are removed from the base 305, thereby saving space. Of course, the structure of the seat 3 is not limited to the above example, and for example, in some embodiments, the backrest 307 may be integrally formed with the base 305; or the backrest 307 can be pivoted with the base 305, and the seat 3 can be further provided with a backrest adjusting and locking structure to realize the function of adjusting the inclination angle of the backrest 307; or the foot rest 309 may be directly connected to the base 305; or in some embodiments the seat 3 may not be provided with a foot rest 309.

Referring to fig. 3 and 23, the seat 3 has a mounting structure for mating with the swing bracket assembly 2 described above. Specifically, as shown in fig. 23, a first positioning groove 31 and a second positioning groove 32 are provided on the bottom surface of the base 305, and the first support bar 221 and the second support bar 222 may be engaged in the first positioning groove 31 and the second positioning groove 32. And, the bottom surface of the base 305 is further provided with a positioning slot 331, a positioning slot 332 and a positioning slot 333, and the first cross bar 223, the second cross bar 224 and the third cross bar 225 can be respectively clamped into the positioning slot 331, the positioning slot 332 and the positioning slot 333. As shown in fig. 3, the outer side surfaces of the two guardrails 306 are respectively provided with a positioning groove 3060. The two swing arms 21 can be respectively clamped into the positioning grooves 3060 of the same side guard rail 306. Thus, the swing bracket assembly 2 forms a reliable support for the seat 3 in both the front-rear direction and the left-right direction. In addition, quick release structures may be provided between the base 305 and the support 22 to facilitate locking or unlocking the connection between the support 22 and the base 305. The quick release structure may employ, for example, the locking device 9 described in the third and fourth embodiments below, and of course, the embodiment of the quick release structure is not limited to the examples below. It will be appreciated that various embodiments of the connection structure of the seat 3 and the swing bracket assembly 2 are possible, as long as the swing bracket assembly 2 can reliably support the seat 3.

Referring to fig. 6, 7, 9, and 11 to 13, a swing limiting mechanism 4 is disposed between the swing arm 21 and the support pipe 11 on the same side, and the swing limiting mechanism 4 is used to limit the swing angle of the swing arm 21, so as to control the swing amplitude of the seat 3, so as to consider riding safety and comfort when the seat 3 is in swing mode. In some embodiments, the swing angle of the swing arm 21 may be within 30 degrees to 40 degrees. Taking the swing angle of the swing arm 21 as an example to be within 40 degrees, this means that the maximum angle α at which the swing arm 21 can swing backward with respect to its own start position is 20 degrees (fig. 11), and the maximum angle β at which the swing arm swings forward is 20 degrees (fig. 12). As shown in fig. 13, the start position of the swing arm 21 is, for example, a position of the swing arm 21 substantially parallel to the center line of the support pipe 11.

Referring to fig. 6, 7, 9 to 13, an exemplary structure of the swing limiting mechanism 4 between the swing arm 21 and the support pipe 11 on the left side is shown. In the present first embodiment, the structures of the main frame 1 and the support frame 22 of the child carrier are substantially symmetrical left and right, and the swing limit structure 4 between the swing arm 21 and the support tube 11 on the right is symmetrical to the swing limit structure 4 on the left, and will not be described further herein. Of course, in some embodiments, the main frame 1 and the support frame 22 of the child carrier may not be completely symmetrical left and right, and the swing limiting mechanism 4 may be provided between the swing arm 21 and the support tube 11 on only one side.

Referring to fig. 6, 7 and 9, the support tube 11 of the main frame 1 is provided with a first through hole 110 penetrating the wall of the support tube 11 laterally, the first through hole 110 being near the upper end of the support tube 11. The swing limiting mechanism 4 includes a fixing member 41, and the fixing member 41 may be sleeved in the support pipe 11 so as to be fixed on the main frame 1. For example, as shown in fig. 6, the upper end of the fixing member 41 may be provided with a limit flange 4109, the limit flange 4109 being caught at the upper port of the support pipe 11, fixing the fixing member 41 to the upper end of the support pipe 11. The fixing member 41 is provided with a second through hole 410 and a limiting slot 411. Wherein the second through hole 410 and the first through hole 110 are aligned with each other, and the limiting slot 411 extends in the longitudinal direction of the fixing member 41 and communicates with the second through hole 410. It will be appreciated that in some alternative embodiments, the fixing member 41 may be fixed to the main frame 1 by other means.

The upper end of the swing arm 21 is provided with a pivot 211, and the pivot 211 is connected to the swing arm 21 so as to be non-rotatable. The pivot shaft 211 is inserted into the first through hole 110 and the second through hole 410, and an axial direction of the pivot shaft 211 is substantially perpendicular to an extending direction of the limiting slot 411. When the swing arm 21 receives a swing force, the swing arm 21 swings together with the pivot shaft 211 about the axis of the pivot shaft 211. In the present first embodiment, the swing arm 21 is integrally formed with the pivot shaft 211. In some alternative embodiments, the pivot 211 and the swing arm 21 may be integral, such as by welding, or the pivot 211 and the swing arm 21 may be of a split construction, such as by a joined flat head connection and a flat bore, which are non-rotatably connected.

Referring to fig. 11 to 13, the side wall of the limiting slot 411 includes a first side wall 401 and a second side wall 402 parallel to each other, and the first side wall 401 and the second side wall 402 are located at both front and rear sides of the pivot shaft 211. First and second limiting surfaces 4111 and 4112 are formed on each of the first and second side walls 401 and 402. The first limiting surface 4111 on the first sidewall 401 is located above the second limiting surface 4112, and the first limiting surface 4111 on the second sidewall 402 is located below the second limiting surface 4112.

Referring to fig. 6 and 10 to 13, the swing limiting mechanism 4 further includes an abutment member 42, where the abutment member 42 is connected to the pivot shaft 211 in a non-rotatable manner and located between the first limiting surface 4111 and the second limiting surface 4112 of the first side wall 401 and the second side wall 402, and the abutment member 42 limits the swing angle of the swing arm 21 by abutting the first limiting surface 4111 and the second limiting surface 4112. In the first embodiment, the abutting element 42 and the pivot 211 are in a split structure, and the abutting element 42 is inserted into the limiting slot 411 and then is connected with the pivot 211 in a non-rotatable manner. The abutment 42 is generally diamond shaped and includes a first pair of parallel surfaces 421 and a second pair of parallel surfaces 422. When the first pair of parallel surfaces 421 swings to abut against the first limiting surface 4111, the swing arm 21 is restricted from continuing to swing in the first direction T1, and when the second pair of parallel surfaces 422 swings to abut against the second limiting surface 4112, the swing arm 21 is restricted from continuing to swing in the second direction T2, the direction of the first direction T1 being opposite to the direction of the second direction T2, see fig. 11. In the present first embodiment, the first direction T1 is more specifically a backward direction, and the second direction T2 is more specifically a forward direction.

Although the first side wall 401 and the second side wall 402 are parallel to each other and the abutting piece 42 is substantially diamond-shaped in the first embodiment, in other embodiments, the first side wall 401, the second side wall 402 and the abutting piece 42 may have other implementations, and are not limited to the above examples, and the first side wall 401 and the second side wall 402 may be able to cooperate with the abutting piece 42 to limit the swing angle of the swing arm 21 within a preset angle.

Fig. 6, 7 and 10 illustrate one exemplary manner of connection of the pivot 211 and the abutment 42. The end of the pivot shaft 211 is provided with a first flat head portion 2111, and the abutment 42 has a first flat hole 423 for engagement with the first flat head portion 2111, and a portion of the first flat head portion 2111 located in the limiting slot 411 is pierced in the first flat hole 423 so that the abutment 42 is non-rotatably connected with the pivot shaft 211. In some embodiments, first flat head 2111, first flat aperture 423 may have a rectangular, trapezoidal, oval, rectangular-like, etc. cross-sectional shape. Referring to fig. 6 and 7, in the mounting, the abutment member 42 is first inserted into the limiting slot 411 from the top slot 41101 of the limiting slot 411, then the first flat head 2111 is passed through the first through hole 110 and the second through hole 410 on one side of the limiting slot 411, and after the first flat hole 423 of the abutment member 42 and the first flat head 2111 are aligned, the first flat head 2111 is passed through the first flat hole 423. As can be seen in fig. 13, in some embodiments, the limiting slot 411 has a closed slot bottom 41102, which prevents the abutment 42 from accidentally sliding into the support tube 11 from the bottom of the limiting slot 411.

Referring to fig. 6, 7 and 10, the diameter of the pivot shaft 211 is smaller than the diameters of the first and second through holes 110 and 410, and a first shaft housing 201 may be fitted around the outer circumference of the pivot shaft 211, the first shaft housing 201 being located at one side of the limiting slot 411 and fitted at least in the second through hole 410 of the fixing member 41, and the pivot shaft 211 being supported by the first shaft housing 201 and rotatable with respect to the first shaft housing 201. The first bushing 201 may be made of, for example, a material having a low friction coefficient and wear resistance, such as a plastic material, to reduce the swing resistance of the swing arm 21. Of course, in some alternative embodiments, the first sleeve 201 may not be provided and the pivot 211 may be supported directly by the second through hole 410, for example.

Referring to fig. 6, the hole wall of the second through hole 410 may be provided with a step 4108, the step 4108 being for limiting the installation depth of the first sleeve 201 in the second through hole 410, avoiding the first sleeve 201 from being pressed against the abutment 42. In some embodiments, the first sleeve 201 may be a tight fit with the second through hole 410 to limit axial movement and circumferential rotation of the first sleeve 201 relative to the second through hole 410. Referring to fig. 7 and 10, in some embodiments, the outer circumference of the first shaft housing 201 may be provided with an axial guide groove 2011, the wall of the second through hole 410 may be provided with an axial guide rib 4101, the extending directions of the axial guide groove 2011 and the axial guide rib 4101 are parallel to the axis of the pivot shaft 211, and the axial guide groove 2011 and the axial guide rib 4101 are engaged together by being relatively moved in the axial direction at the time of assembly so as to be able to restrict the first shaft housing 201 from rotating circumferentially with respect to the second through hole 410. It will be appreciated that in some alternative embodiments, the locations of the axial guide groove 2011 and the axial guide rib 4101 on the outer circumference of the first sleeve 201 and the wall of the second through bore 410 may be interchanged.

With continued reference to fig. 6, 7, 9 and 10, the root of the first flat head 2111 is formed with a first step 2102, the first step 2102 being able to limit axial movement of the abutment 42 relative to the pivot 211 from one side. The first flat head 2111 may be provided with a first limiting structure 5, where the first limiting structure 5 limits the axial movement of the abutment 42 relative to the pivot 211 from the other side, so as to prevent the abutment 42 from moving on the first flat head 2111, and further prevent the abutment 42 from being separated from the first flat head 2111.

With continued reference to fig. 6, 7, 9 and 10, an exemplary configuration of the first spacing structure 5 is also shown in the present first embodiment. The first limiting structure 5 includes a spring clip 51 and a first positioning sleeve 52 at the other side of the limiting slot 411. The first positioning sleeve 52 is sleeved on the first flat head 2111 and is positioned in the second through hole 410. Wherein the axial center of the first positioning sleeve 52 has a second flat hole 521, the second flat hole 521 is used for being engaged with the first flat head 2111, so that no relative rotation occurs between the first positioning sleeve 52 and the first flat head 2111. The first positioning sleeve 52 also has a radial through slot 522 for receiving the spring clip 51, the radial through slot 522 intersecting perpendicularly with the second flat hole 521. The first flat head 2111 is provided with a first positioning recess 2101, and the spring clip 51 is inserted into the radial through groove 522 and engages with the first positioning recess 2101, so that the axial position of the first positioning sleeve 52 on the first flat head 2111 is fixed, and the abutting piece 42 is sandwiched between the first step 2102 and the first positioning sleeve 52. Referring to fig. 6, in some embodiments, the outer peripheral wall of the first positioning sleeve 52 contacts the wall of the second through hole 410 such that the first positioning sleeve 52 may provide an additional support for the first flat head 2111.

Referring to fig. 7, in some embodiments, one or more positioning holes 424 are provided on an end surface of the abutment member 42 facing the first positioning sleeve 52, and the positioning holes 424 may be blind holes or through holes. One or more positioning bosses 523 are provided on an end surface of the first positioning sleeve 52 facing the abutment 42, and the positioning holes 424 are engaged with the positioning bosses 523. Since the first positioning sleeve 52 and the first flat head 2111 are non-rotatably connected, the non-rotatable connection between the abutment 42 and the first flat head 2111 is further ensured by the engagement of the positioning hole 424 and the positioning boss 523. In some alternative embodiments, the location of the locating hole 424 and locating boss 523 on the abutment 42 and the first locating sleeve 52 may be interchanged.

Referring to fig. 7, the child carrier may also be provided with a first swing lock mechanism 6 for locking the swing of the swing arm 21 so that the seat 3 cannot swing, i.e., switching from the swing mode to the fixed mode. For a child dining chair, the seat 3 needs to be switched from swing mode to stationary mode while the child is dining. The first swing lock 6 may have various embodiments. Referring to fig. 3, at least one locking hole 30 may be provided at a side portion of the seat 3 (more specifically, a guard rail 306 of the seat 3), and referring to fig. 5, the first swing lock mechanism 6 may be mounted on the main frame 1 and have an axially retractable locking pin 62, the locking pin 62 being parallel to the pivot 211. When the control lock pin 62 is inserted into the lock hole 30, the swing of the swing arm 21 is locked, and the seat 3 is switched to the fixed mode. It will be appreciated that when the seat 3 is provided with a plurality of locking holes 30, the inclination of the seat 3 in the fixed mode can be changed by inserting the locking pins 62 into different locking holes 30. When the seat 3 is required to be switched to the swing mode, the lock pins 62 are controlled to withdraw from the corresponding lock holes 30, the lock pins 62 do not interfere with the swing of the swing arm 21 any more, and the swing arm 21 can drive the seat 3 to swing within the angle range defined by the swing limiting mechanism 4.

Referring to fig. 5, 7 to 9, and 11 to 13, an exemplary structure of the first swing lock mechanism 6 and an exemplary mounting structure of the first swing lock mechanism 6 and the main frame 1 are shown in the present first embodiment. To facilitate the installation of the first swing lock 6, the main frame 1 may further include a first installation housing 15, the first swing lock 6 being installed in the first installation housing 15, the first installation housing 15 being installed on the main frame 1, more specifically, the first installation housing 15 being installed on the support pipe 11.

Referring to fig. 7 and 9, the first mounting case 15 may be formed by abutting the first case portion 151 and the second case portion 152, and the first swing lock mechanism 6 is mounted inside the first mounting case 15.

The second housing part 152 is further away from the longitudinal centre plane of the child carrier (otherwise referred to as the bilateral centre plane) than the first housing part 151, the second housing part 152 has a first sleeve part 150, and the first sleeve part 150 can be fitted over the end of the support tube 11. In some embodiments, as shown in fig. 9, a hole 1101 may be provided in the support tube 11, a hole 1501 may be provided in the first sleeve portion 150, and a fastener, such as a screw, may be sequentially inserted through the hole 1501 and the hole 1101 to secure the second housing portion 152 to the support tube 11. Referring to fig. 7, an operation knob 154 may be mounted on the second housing part 152, a first end of the operation knob 154 is hinged to the second housing part 152 through a pin 1541, a second end of the operation knob 154 may be provided with a mounting hole 1542, the mounting hole 1542 is used for connecting an end portion of a cable (cable is not shown in the drawing), and a return spring 153 is further provided between the operation knob 154 and the second housing part 152. The operation button 154 moves upwards around the pin 1541 and compresses the return spring 153 after being stressed, the second end of the operation button 154 drives the inhaul cable to move upwards, and the upward movement of the inhaul cable can realize the corresponding function. For example, in some embodiments, upward movement of the cable may release the locking relationship between the support tube 11 and the front foot rest 101 such that the support tube 11 may telescope relative to the front foot rest 101 to adjust the height of the seat 3. Since the technical features and functions associated with the operating knob 154 and the cable are not important to the present utility model, they will not be described herein.

The first housing part 151 may be fixed to the second housing part 152 by screws (not shown). The first housing portion 151 may be provided with a third through hole 1503, with the locking pin 62 extending outwardly from the third through hole 1503. Referring to fig. 7 and 9, the first swing lock 6 may further include a first release 61 and a first elastic member 63. Referring to fig. 5, the first elastic member 63 applies an elastic force to the locking pin 62 inside the first mounting case 15, forcing the locking pin 62 to protrude outward to be inserted into the corresponding locking hole 30. The first release 61 is operatively connected to the locking pin 62 to urge the locking pin 62 to retract inwardly, thereby withdrawing the locking pin 62 from the corresponding locking hole 30.

In some embodiments, the first lock release 61 may be movable back and forth to a locked or unlocked position relative to the first mounting housing 15, and the first housing portion 151 and/or the second housing portion 152 may be provided with structure 1521 that guides the movement of the first lock release 61. Referring to fig. 8, 11 and 12, when the first locking piece 61 is at the locking position, the first locking piece 61 drives the lock pin 62 to withdraw from the lock hole 30, and the swing arm 21 can swing back and forth. Referring to fig. 8 and 13, when the first release member 61 is in the locking position, the first elastic member 63 drives the locking pin 62 to protrude outward to be inserted into the locking hole 30.

Referring to fig. 7, 8, 11-13, in some embodiments, a middle portion of the locking pin 62 may be provided with a first annular flange 620, the first annular flange 620 dividing the locking pin 62 into a first portion 621 and a second portion 622, the first portion 621 being adapted to extend outwardly for insertion into the locking aperture 30, the first resilient member 63 being sleeved over the second portion 622, the second housing portion 152 may be provided with a mounting aperture 1520, the second portion 622 being axially movably disposed in the mounting aperture 1520. Referring to fig. 8, the first releasing member 61 has a first elongated hole 611, the first elongated hole 611 may be a linear hole or an arc hole, and a wall of the first elongated hole 611 is formed with a first stop 612 extending obliquely. The first annular flange 620 is clamped between the first stop table 612 and the first resilient element 63. When the first lock release member 61 moves to the release position, the first stop 612 pushes the first annular flange 620 to move the lock pin 62 axially, so that the lock pin 62 is retracted inwards until it is withdrawn from the lock hole 30. When the first release member 61 is moved to the locking position, the first stop 612 escapes from the axial space, and the first elastic member 63 drives the locking pin 62 to protrude outward, so that the locking pin 62 can be inserted into the locking hole 30. Of course, there are various structures for controlling the axial extension and retraction of the locking pin 62 by the first locking piece 61, and the present invention is not limited to the above examples.

Referring to fig. 8 and 11 to 13, to facilitate the operation of the first lock release member 61, the first lock release member 61 further has a first dial 613 protruding with respect to the first mounting housing 15, the first dial 613 being operated by a human hand to change the front-rear position of the first lock release member 61. The first mounting housing 15 is correspondingly provided with a first opening 1505 for the movement of the first dial 613, the first opening 1505 also limiting the travel of the first dial 613.

As can be seen from fig. 11 to 13, in some embodiments, the upper end of the support tube 11 protrudes into the interior of the first mounting housing 15 through the first sleeve portion 150 of the first mounting housing 15, and the fixing member 41 at the upper end of the support tube 11 is correspondingly accommodated in the interior of the first mounting housing 15, and the first mounting housing 15 is provided with a second opening 1506 (see fig. 9) through which the swing arm 21 passes, which second opening 1506 also helps to limit the swing angle of the swing arm 21.

There is also provided a swing mechanism including the above-described fixing member 41, swing arm 21, and abutment member 42. As described in the present embodiment, the fixing member 41 is provided with the first limit surface 4111 and the second limit surface 4112. The swing arm 21 has a pivot 211, and the pivot 211 is pivotable with respect to the mount 41. The abutment member 42 is connected to the pivot 211 and located between the first limiting surface 4111 and the second limiting surface 4112. When the swing arm 21 rotates, the abutment member 42 rotates together with the swing arm 21 and abuts against the first and second stopper surfaces 4111 and 4112, respectively, when reaching the limit position of swing, thereby restricting the swing angle range of the swing arm 21.

In some embodiments, as described above, the fixing member 41 is provided with the limiting slot 411, and the extending direction of the limiting slot 411 is perpendicular to the axial direction of the pivot shaft 211. The first and second stopper surfaces 4111 and 4112 may be formed on the two first and second sidewalls 401 and 402 of the stopper slot 411 that are parallel to each other. The abutment 42 may be attached to the swing arm 21 and include a first pair of parallel faces 421 and a second pair of parallel faces 422 that are parallel to each other. The abutment member 42 restricts the range of the swing angle of the swing arm 21 by abutment of the first and second pairs of parallel surfaces 421, 422 with different positions of the second side wall 402 of the first side wall 401.

The swing mechanism may be applied to any suitable product for limiting the range of the swing angle of the swing arm 21.

Second embodiment

Fig. 14 to 21 schematically illustrate a part of the structure of a child carrier according to a second embodiment of the present utility model, similar to the first embodiment, the child carrier of the second embodiment is also illustrated as a child dinning chair, and of course, the type of the child carrier is not limited to the child dinning chair. The child carrier includes a main frame 1, a swing bracket assembly 2 and a seat, and it should be noted that the structure of the seat is not shown in fig. 14 to 21, and the seat can be referred to as the structure of the seat 3 in the foregoing first embodiment without collision.

Referring to fig. 14, the structure of the main frame 1 in the present second embodiment is similar to that of the main frame 1 in the first embodiment described above. The main frame 1 includes two front foot frames 101, two rear foot frames 102, a front cross bar (not shown) connected between the two front foot frames 101, a rear cross bar (not shown) connected between the two rear foot frames 102, a folding member 104 connected between the front foot frames 101 and the rear foot frames 102 on the same side, and support pipes 11 provided at the upper portions of the respective front foot frames. The interrelationship of these components can be referred to the description of the first embodiment described above, and will not be repeated here.

Referring to fig. 16, the swing bracket assembly 2 in the present second embodiment has a structure similar to that of the swing bracket assembly 2 in the first embodiment described above. The swing bracket assembly 2 includes a support frame 22 and swing arms 21 located on both left and right sides of the support frame 22. The support frame 22 may have a bent structure including, for example, a first support bar 221, a second support bar 222, a first cross bar 223, a second cross bar 224, and a third cross bar 225. The mutual relation of these components and the cooperation relation of the swing bracket assembly 2 and the seat 3 can be referred to the description of the first embodiment, and will not be repeated here. The upper end of each swing arm 21 is pivotally connected to the corresponding support pipe 11, so that the swing bracket assembly 2 can swing back and forth to drive the seat 3 to swing back and forth.

Referring to fig. 15 to 17, and fig. 20 and 21, in the child carrier of the second embodiment, a swing limit mechanism 4 is provided between the swing arm 21 and the support pipe 11 on the same side, and the swing limit mechanism 4 has the same function as the swing limit mechanism 4 in the first embodiment described above, and is used for limiting the swing angle of the swing arm 21, so as to control the swing amplitude of the seat 3, so as to consider both the riding safety and the comfort when the seat 3 is in the swing mode. For example, the swing limiting mechanism 4 limits the swing angle of the swing arm 21 to within 30 degrees to 40 degrees. An exemplary structure of the swing limiting mechanism 4 between the swing arm 21 on the left side and the support pipe 11 is shown in this second embodiment. In the present second embodiment, the structures of the main frame 1 and the support frame 22 of the child carrier are substantially symmetrical left and right, and the swing limit structure 4 between the swing arm 21 and the support tube 11 on the right is symmetrical to the swing limit structure 4 on the left, and will not be described further herein. Of course, in some embodiments, the main frame 1 and the support frame 22 of the child carrier may not be completely symmetrical left and right, and the swing limiting mechanism 4 may be provided between the swing arm 21 and the support tube 11 on only one side.

Referring to fig. 15 to 17, the support tube 11 of the main frame 1 is provided with a first through hole 110 penetrating the wall of the support tube 11 laterally, the first through hole 110 being near the upper end of the support tube 11. The swing limiting mechanism 4 includes a fixing member 41, and the fixing member 41 may be sleeved in the support pipe 11 so as to be fixed on the main frame 1. For example, the upper end of the fixing member 41 may be provided with a limit flange 4109, the limit flange 4109 being caught at the upper port of the support tube, fixing the fixing member 41 to the upper end of the support tube 41. The fixing member 41 is provided with a second through hole 410 and a limiting slot 411. Wherein the second through hole 410 and the first through hole 110 are aligned with each other, and the limiting slot 411 extends in the longitudinal direction of the fixing member 41 and communicates with the second through hole 410. It will be appreciated that in some alternative embodiments, the fixing member 41 may be fixed to the main frame 1 by other means.

Referring to fig. 16 and 17, the upper end of the swing arm 21 is provided with a pivot shaft 211, and the pivot shaft 211 is non-rotatably connected to the swing arm 21. The pivot shaft 211 is inserted into the first through hole 110 and the second through hole 410, and an axial direction of the pivot shaft 211 is substantially perpendicular to an extending direction of the limiting slot 411. When the swing arm 21 receives a swing force, the swing arm 21 swings together with the pivot shaft 211 about the axis of the pivot shaft 211. In the present second embodiment, the pivot shaft 211 and the swing arm 21 are of a split structure, the end face of the second end of the pivot shaft 211 is provided with a flat head connection portion 2113 protruding outward, the upper end of the swing arm 21 is provided with a connection piece 26, and the connection piece 26 is provided with a third flat hole 260 for engagement with the flat head connection portion 2113. The flat head connection 2113 and the third flat hole 260 may have rectangular, trapezoidal, elliptical, rectangular-like, etc. cross-sectional shapes.

Referring to fig. 16, 20 and 21, the limiting piece 43 is provided in the limiting slot 411. More specifically, the stopper 43 is, for example, a plate member, and is inserted in the stopper slot 411. The limiting member 43 has an opening 430 through which the pivot shaft 211 passes, and a first limiting surface 4111 and a second limiting surface 4112 are formed on a wall of the opening 430. More specifically, the aperture 430 may include a first aperture 4301, the first aperture 4301 being, for example, a scalloped aperture, the first aperture 4301 including a first wall 43011 and a second wall 43012, the first wall 43011 and the second wall 43012 being located on either front and rear sides of the pivot 211. The first and second stopper surfaces 4111 and 4112 are formed on the first and second walls 43011 and 43012 described above.

Referring to fig. 20, in the second embodiment, the first hole 4301 is formed by vertically butting two sub-fan holes (not numbered in the figure), the first wall 43011 of the first hole 4301 includes a front wall of an upper sub-fan hole and a front wall of a lower sub-fan hole, and the second wall 43012 of the first hole 4301 includes a rear wall of an upper sub-fan hole and a rear wall of a lower sub-fan hole. The first stopper surface 4111 may include a front wall of the upper sub-sector hole and a rear wall of the lower sub-sector hole, and the second stopper surface 4112 may include a rear wall of the upper sub-sector hole and a front wall of the lower sub-sector hole.

With continued reference to fig. 16, 20 and 21, the swing limiting mechanism 4 further includes an abutment member 42, where the abutment member 42 is non-rotatably connected to the pivot shaft 211 and located between the first limiting surface 4111 and the second limiting surface 4112, and the abutment member 42 limits the swing angle of the swing arm 21 by abutting against the first limiting surface 4111 and the second limiting surface 4112. In the present second embodiment, the abutment 42 is integrally formed with the pivot shaft 211, and more specifically, the abutment 4 is a second flat head formed on the pivot shaft 211, the second flat head being adjacent to a first end of the pivot shaft 211 and including a first plane 425 and a second plane 426 parallel to each other, the first end of the pivot shaft 211 being an end of the pivot shaft 211 remote from the connecting piece 26.

Referring to fig. 20, during the swing of the swing arm 21, when the upper portion of the first plane 425 and the lower portion of the second plane 426 simultaneously abut against the first stopper surface 4111, the swing arm 21 is restricted from continuing to swing in the first direction T1, and when the lower portion of the first plane 425 and the upper portion of the second plane 426 simultaneously abut against the second stopper surface 4112, the swing arm 21 is restricted from continuing to swing in the second direction T2.

Although in the second embodiment, the opening 430 includes the first hole 4301 formed by connecting and abutting two sub-fan-shaped holes, and the abutting member 42 is a second flat head formed on the pivot 211, in other embodiments, the opening 430 and the abutting member 42 may have other embodiments, and the wall of the opening 430 may be limited to the above-mentioned examples, as long as the swinging angle of the swinging arm 21 can be limited to a preset angle. For example, in some embodiments, the first hole portion 4301 of the hole 430 may include only one sub-sector hole, and front and rear walls of the one sub-sector hole form a first limiting surface 4111 and a second limiting surface 4112, respectively.

Referring to fig. 15 to 17, the diameter of the pivot shaft 211 is smaller than the diameters of the first and second through holes 110 and 410, and the second bushing 202 may be fitted around the outer circumference of the pivot shaft 211, and the second bushing 202 is positioned at one side of the limiting slot 411 and fitted at least in the second through hole 410 of the fixing member 4. The pivot 211 is supported by the second hub 202 and is rotatable relative to the second hub 202. The second sleeve 202 may be made of, for example, a material that is wear resistant and has a low coefficient of friction, such as a plastic material, to reduce the swing resistance of the swing arm 21. In some embodiments, the second sleeve 202 may be a tight fit with the second through bore 410 to limit axial movement and circumferential rotation of the second sleeve 202 relative to the second through bore 410. Of course, in some alternative embodiments, the second hub 202 may not be provided, and the pivot 211 may be supported directly by the second through hole 410, for example.

With continued reference to fig. 15-17, the pivot 211 may be provided with a second stop structure 7, which second stop structure 7 is used to avoid disengagement of the tab 26, the pivot 211 and the stop 43. An exemplary connection of the pivot shaft 211 and the second stop structure 7 is shown, in particular, the pivot shaft 211 has a central bore 2110 (fig. 16), the root of the second flat head portion is formed with a second step 2103 (fig. 17), and the root of the flat head connection 2113 is formed with a third step 2105 (fig. 16). The second limiting structure 7 includes a bolt 71 and a nut 72, wherein a tail 711 of the bolt 71 passes through the central hole 2110 from a second end (an end of the flat head connection portion 2113) of the pivot 211, passes through the central hole 2110 from a first end of the pivot 211, and is then screwed with the nut 72, and the nut 72 is located at the other side of the limiting slot 411 and in the second through hole 410. The connecting piece 26 is sandwiched between the third step 2105 and the head 712 of the bolt 71, the stopper 43 is sandwiched between the second step 2103 and the nut 72, and the second bushing 202 is located between the connecting piece 26 and the stopper 43.

With continued reference to fig. 15-17, the pivot 211 may further include a prismatic post 2115 extending from an end face of the second flat head, and the nut 72 may be provided with a second locating recess 720 that mates with the prismatic post 2115. The prismatic column 2115 and the second positioning recess 720 are engaged such that the nut 72 is not rotatable relative to the pivot 211, which facilitates screwing the bolt 71 into or out of the nut 72. In some embodiments, the outer peripheral wall of the nut 72 may contact the wall of the second through hole 410 to form an auxiliary support for the pivot shaft 211.

In some embodiments, the child carrier may be provided with the first swing lock mechanism 6 in the first embodiment described above, and the swing of the swing arm 21 is locked by the first swing lock mechanism 6 so that the seat 3 cannot swing and is in the fixed mode.

This second embodiment provides another implementation for locking the swing of the swing arm 21. Referring to fig. 20 and 21, the limiting slot 411 has a notch 41101 and a slot bottom 41102, the limiting piece 43 is inserted into the limiting slot 411 through the notch 41101, the limiting piece 43 can move longitudinally in the limiting slot 411 to adjust its position, and the limiting slot 411 has a closed slot bottom 41102 to prevent the limiting piece 43 from accidentally sliding into the support tube 11 from the bottom of the limiting slot 41. The opening 430 of the stopper 43 further includes a second hole 4302 communicating with the first hole 4301, and the second hole 4302 is, for example, a straight hole including, for example, two hole walls opposed to and parallel to each other. The second bore 4302 is below the first bore 4301 closer to the groove bottom 41102, and the first bore 4301 is closer to the notch 41101. As shown in fig. 21, by moving the stopper 43 in the direction of the notch 41101, at least a part of the second flat head portion is inserted into the second hole 4302 from the first hole 4301, and the first plane 425 and the second plane 426 of the second flat head portion abut against both side hole walls of the second hole 4302, that is, the second flat head portion engages with the second hole 4302, whereby the swing of the swing arm 21 can be restricted. Referring to fig. 21, in some embodiments, two limiting portions 4307 are formed at the joint of the two sub-fan-shaped holes, and by reasonably setting the depth of the second hole portion 4302, when the second flat head portion is engaged with the second hole portion 4302, a portion of the second flat head portion is sandwiched between the two limiting portions 4307, and the two limiting portions 4307 also generate a limiting effect on the second flat head portion. In contrast, as shown in fig. 20, the swing arm 21 can swing back and forth by moving the stopper 43 in the groove bottom 41102 direction until the second flat head portion is completely located in the first hole portion 4301.

It will be appreciated that in some alternative embodiments, the up and down positions of the second hole 4302 and the first hole 4301 may be interchanged, where the second flat head is fully located in the first hole 4301 when the stopper 43 is moved toward the notch 41101, and the swing arm 21 may swing back and forth, whereas when the stopper 43 is moved toward the groove bottom 41102, at least a portion of the second flat head is inserted into the second hole 4302 from the first hole 4301, and the swing of the swing arm 21 is locked.

With continued reference to fig. 20 and 21, in the second embodiment, a second elastic element 45 is installed in the limiting slot 411, and the second elastic element 45 is clamped between the limiting member 43 and the slot bottom 41102, so as to apply an upward force to the limiting member 43 to move the limiting member 43 toward the slot 41101. To facilitate positioning of the second elastic member 45, the limiting slot 411 is formed with a cylindrical guide portion 4115. Further, the stopper 43 may be provided with a receiving recess 4309, and an upper end of the second elastic member 45 is located in the receiving recess 4309. When a pressing force is applied to the stopper 43, the stopper 43 can move toward the groove bottom 41102 against the elastic force of the second elastic member 45. Thus, by moving the stopper 43 up and down in the stopper slot 411, the first hole 4301 and the second hole 4302 are selectively engaged with the second flat head. In combination with the above, when the second flat head portion is engaged with the first hole portion 4301, the swing arm 21 can swing back and forth. When the second flat head portion is at least partially engaged with the second hole portion 4302, the swing of the swing arm 21 is locked.

Referring to fig. 16-21, to facilitate the application of pressure to the retainer 43 in the direction of the groove bottom 41102, the second embodiment further includes a second swing lock mechanism 8, the second swing lock mechanism 8 being operatively connected to the retainer 43 to apply the above-mentioned pressure to the retainer 43 in the direction of the groove bottom 41102 to move the retainer 43 toward the groove bottom 41102 against the action of the second resilient element 45.

Referring to fig. 15 to 21, an exemplary structure of the second swing lock mechanism 8, and an exemplary mounting structure of the second swing lock mechanism 8 with the main frame 1 are shown in the present second embodiment. To facilitate mounting of the second swing lock 8, the child carrier may further comprise a second mounting housing 16, the second swing lock 8 being mounted in the second mounting housing 16, the second mounting housing 16 being mounted on the main frame 1, more specifically the second mounting housing 16 being mounted on the support tube 11.

Referring to fig. 15 and 16, the second mounting case 16 may be formed by abutting a third case portion 161 and a fourth case portion 162, and the second swing lock mechanism 8 is mounted inside the second mounting case 16.

The fourth housing part 162 is further away from the longitudinal centre plane of the child carrier (otherwise referred to as the bilateral centre plane) than the third housing part 161, the fourth housing part 162 having a second sleeve part 160, the second sleeve part 160 being able to be fitted over the end of the support tube 11. Referring to fig. 17, in some embodiments, a hole 1101 may be provided in the support tube 11, a hole 1601 may be provided in the second sleeve portion 160, and a fastener, such as a screw, may be sequentially inserted through the hole 1601 and the hole 1101 to secure the fourth housing portion 162 to the support tube 11. Referring to fig. 14 and 16, the fourth housing part 162 may be mounted with an operation knob 164, a first end of the operation knob 164 is hinged to the fourth housing part 162 through a pin 1641, a second end of the operation knob 164 may be provided with a mounting hole 1642, the mounting hole 1642 is used for connecting an end portion of a cable (cable is not shown in the drawings), and a return spring 163 is further provided between the operation knob 164 and the fourth housing part 162. The operation button 164 moves upward around the pin shaft 1641 and compresses the return spring 163 after being stressed, the second end of the operation button 164 drives the inhaul cable to move upward, and the upward movement of the inhaul cable can realize the corresponding function. For example, in some embodiments, upward movement of the cable may release the locking relationship between the support tube 11 and the front foot rest 101 such that the support tube 11 may telescope relative to the front foot rest 101 to adjust the height of the seat 3. Since the technical features and functions associated with the operating knob 164 and the cable are not important to the present utility model, they will not be described herein.

The third housing portion 161 may be fixed to the fourth housing portion 162 by screws (not shown). Referring to fig. 16 and fig. 18 to 21, a top portion of the stopper 43 near the notch 41101 is provided with an engaging portion 431, and the engaging portion 431 is, for example, a concave portion. The second swing lock mechanism 8 includes a second release lock 81, a first link 82, and an engagement piece 83. The engaging member 83 has a central hole 830, a rotating shaft 169 (fig. 16) is disposed in the second mounting housing 16, the engaging member 83 is sleeved on the rotating shaft 169 through the central hole 830, and the rotating shaft 169 is parallel to the pivot 211. The engagement member 83 has a connecting lug 831, an engagement protrusion 832, and a relief portion 833 provided on the outer periphery thereof. The first linking member 82 is connected between the connecting lug 831 and the second releasing locking member 81, and the second releasing locking member 81 drives the engaging member 83 to rotate through the first linking member 82, so that the engaging protrusion 832 and the avoiding portion 833 rotate accordingly. Referring to fig. 20, when the engaging protrusion 832 is rotated to a position abutting against the engaging portion 431, the stopper 43 moves toward the groove bottom 41102, the second flat head portion cooperates with the first hole 4301, and the swing arm 21 can swing back and forth. Referring to fig. 21, when the escape portion 833 is rotated to a position abutting against the top of the stopper 43, the stopper 43 moves toward the notch 41101 by the second elastic member 45, and the second flat head portion cooperates with the second hole 4302, so that the swing of the swing arm 21 is locked.

In the present second embodiment, the second lock release 81 may be moved back and forth to the locking position or the unlocking position with respect to the second mounting housing 16, and the third housing portion 161 and/or the fourth housing portion 162 may be provided with a structure 1621 guiding the movement of the second lock release 81. Referring to fig. 18 and 20, when the second lock release member 81 moves backward to the lock release position, the first linking member 82 drives the engaging member 83 to pivot, so that the engaging protrusion 832 abuts against the engaging portion 431, the limiting member 43 moves downward, the second flat head portion cooperates with the first hole portion 4301, and the swing arm 21 can swing back and forth. Referring to fig. 19 and 21, when the second release lock 81 moves forward to the locking position, the engaging protrusion 832 is disengaged from the engaging portion 431, the avoidance portion 833 faces the stopper 43 and allows the stopper 43 to move upward, the second flat head portion cooperates with the second hole portion 4302, and the swing of the swing arm 21 is locked.

Referring to fig. 16 and 17, the present second embodiment shows an exemplary connection structure of the first linking member 82, the second lock release member 81, and the engaging member 83. More specifically, the first linkage member 82 has an arc shape, a first end of the first linkage member 82 is provided with a first connection pin 821, and the second release lock member 81 is provided with a second elongated hole 811 slidably fitted with the first connection pin 821. Of course, in alternative embodiments, the positions of the first connecting pin 821 and the second elongated hole 811 on the first linkage 82 and the second release lock 81 may be interchanged. The second end of the first linkage member 82 is provided with a third elongated hole 822, the connecting lug 831 is provided with a second connecting pin 8311, and the third elongated hole 822 is in sliding fit with the second connecting pin 8311. Of course, in alternative embodiments, the positions of the second connector pin 8311 and the third elongate aperture 822 on the connector lug 831 and the first linkage 82 may be interchanged.

Referring to fig. 18 and 19, in order to facilitate the operation of the second release member 81, the second release member 81 has a second dial 812 protruding outwardly with respect to the second mounting case 16, and the second dial 812 is operated by a human hand to change the front-rear position of the second release member 81. The second mounting housing 16 is correspondingly provided with a third opening 1605 for movement of the second dial 812, the third opening 1605 also limiting the travel of the second dial 812.

As can be seen in fig. 15 and 16, in some embodiments the upper end of the support tube 11 protrudes into the second mounting housing 16 through the second sleeve portion 160 of the second mounting housing 16, and the securing member 41 at the upper end of the support tube 11 is correspondingly accommodated in the second mounting housing 16, which second mounting housing 16 is provided with a fourth opening 1606 through which the swing arm 21 passes, which fourth opening 1606 also contributes to limiting the swing angle of the swing arm 21.

It should be noted that, although the fixing member 41 is sleeved in the support tube 11 in the first embodiment and the second embodiment, in other embodiments, the fixing member 41 may not be sleeved in the support tube 11, for example, the fixing member 41 is fixed on the outer portion of the support tube 11, and the pivot 211 is correspondingly pivotally connected to the fixing member 41 on the outer portion of the support tube 11, where the support tube 11 does not need to be provided with the first through hole 110.

There is also provided a swing mechanism including the above-described fixing member 41, swing arm 21, and abutment member 42. The following mainly describes the differences between the swing mechanism in the present embodiment and the swing mechanism in the first embodiment, and the same or similar points of the two are not described here.

The stopper 43 is provided in the stopper slot 411. More specifically, the stopper 43 is, for example, a plate member, is inserted in the stopper slot 411 of the fixing member 41, and the position of the stopper 43 in the stopper slot 411 is adjustable. The stopper 43 has an opening 430 through which the pivot shaft 211 passes, and the opening 430 includes a first hole 4301 and a second hole 4302. The first hole 4301 may be formed by abutting two sub-sector holes, for example. The first hole 4301 includes a first wall 43011 and a second wall 43012, and first and second stopper surfaces 4111 and 4112 are formed on the first and second walls 43011 and 43012. The second hole 4302 is for engagement with the abutment 42 to lock the swing arm.

By changing the position of the stopper 43 in the stopper slot 411, the swing mechanism can restrict the limit swing position of the swing arm 21, that is, the swing angle range, by the cooperation of the first hole portion 4301 and the abutment 42, and lock the swing arm 21 by the engagement of the second hole portion 4302 and the abutment 42.

In addition, the swing mechanism may be configured with the second swing lock mechanism 8 and the second elastic member 45 described above to adjust the position of the stopper 43 in the stopper slot 411.

The swing mechanism allows the swing arm 21 to swing within a predetermined angle range, and locks the swing arm 21 so that the swing arm 21 does not swing.

Third embodiment

Fig. 22 to 27 schematically show a seat connection structure provided according to a third embodiment of the present utility model, the seat connection structure being applied to a child carrier. In the third embodiment, the seat connection structure is described as applied to the child dining chair exemplified in the first embodiment and the second embodiment, but it is understood that the application scope of the seat connection structure is not limited to the child dining chair, and it can be applied to other types of child carriers or other structures requiring quick disassembly of the seat.

Referring to fig. 22 and 23, the seat connection structure includes a support frame 22, first and second positioning grooves 31 and 32, and a locking device 9. A first detent 31 and a second detent 32 are provided on a first face of the seat 3. The support frame 22 includes a first support bar 221 and a second support bar 222 disposed opposite to each other. Referring to the foregoing description of the first embodiment, the first support bar 221 and the second support bar 222 extend in the front-rear direction. In addition, the support 22 may also include at least one cross bar, including, for example, a first cross bar 223, a second cross bar 224, and a third cross bar 225.

Referring to fig. 23, the first side of the seat 3, and more particularly, the bottom surface of the base 305, may be provided with a first detent 31 and a second detent 32. The first positioning groove 31 is used for accommodating the first supporting rod 221, and the second positioning groove 32 is used for accommodating the second supporting rod 222. When the first support bar 221 and the second support bar 222 are respectively caught in the first positioning groove 31 and the second positioning groove 32, they can support the seat 3 and can restrict the movement of the seat 3 in the left-right direction with respect to the support frame 22.

The underside of the seat 3 may also be provided with a detent for receiving at least one cross bar. For example, the bottom surface of the base 305 is further provided with a third positioning slot 331, a fourth positioning slot 332 and a fifth positioning slot 333, and the first cross bar 223, the second cross bar 224 and the third cross bar 225 may be respectively snapped into the third positioning slot 331, the fourth positioning slot 332 and the fifth positioning slot 333. When these crossbars are respectively caught in the corresponding positioning grooves, the seat 3 can be supported on the one hand, and the movement of the seat 3 in the front-rear direction with respect to the support frame 22 can be restricted on the other hand. In order to facilitate the installation of the respective support bars and the respective cross bars, the first positioning groove 31, the second positioning groove 32, the third positioning groove 331, the fourth positioning groove 332, and the fifth positioning groove 333 communicate. It will be appreciated that there are a wide variety of ways to limit the fore and aft movement of the seat 3 relative to the support frame 22 and that the engagement of the cross bar and detent described above is not limited.

In the first and second embodiments, both ends of the support frame 22 are connected to the main frame 1 via the swing arms 21, so that the seat 3 has a swing mode. In some alternative embodiments, however, the support frame 22 may be secured to the main frame 1, such as directly or indirectly, such that the seat 3 does not have a swing mode. In addition, in some alternative embodiments, the first support bar 221 and the second support bar 222 may not extend in the front-rear direction but extend in the left-right direction, and in this arrangement, when the first support bar 221 and the second support bar 222 are respectively caught in the first positioning groove 31 and the second positioning groove 32, the movement of the seat 3 in the front-rear direction with respect to the support frame 22 may be achieved by any suitable structure.

Referring to fig. 22 and 23, a second face of the seat 3, which faces away from the first face, e.g., a top face of the seat 3, and more specifically, a top face of the base 305, may be provided with a first runner 33 and a second runner 34, the extending direction of the first runner 33 intersecting substantially perpendicularly with the extending direction of the first positioning groove 31, and the extending direction of the second runner 34 intersecting substantially perpendicularly with the extending direction of the second positioning groove 32.

Referring to fig. 22 and 23, the locking device 9 includes a first catch 91, a second catch 92 and a resilient element 93. The first catch 91 and the second catch 92 are both in sliding engagement with the seat 3, for example, the first catch 91 is slidably disposed in the first chute 33 and the second catch 92 is slidably disposed in the second chute 34. The elastic member is used to drive the first shutter 91 to the locking position, in which the first shutter 91 is located below the first support bar 221 to block the first support bar 221 from being removed from the first positioning groove 31, i.e., to lock the first support bar 221 between the first shutter 91 and the seat 3. The elastic member is also used to drive the second catch 92 to the locking position, where the second catch 92 is located below the second support bar 222 to block the second support bar 222 from being removed from the second positioning slot 32, i.e. to lock the second support bar 222 between the second catch 92 and the seat 3. Thus, when the locking device 9 is in the locked state, the first and second stoppers 91 and 92 lock the connection relationship of the first and second support rods 221 and 222 to the seat 3. In some embodiments, the first and second stops 91, 92 may be separate or may be connected together.

Depending on the connection of the first catch 91 and the second catch 92, the elastic element 93 may comprise one or more springs. For example, when the first shutter 91 and the second shutter 92 are separately provided, the elastic member may include one spring for driving the first shutter 91 and one spring for driving the second shutter 92. In this third embodiment, the first catch 91 and the second catch 92 are connected together, in which case the elastic element may comprise a spring which acts on both the first catch 91 and the second catch 92.

Referring to fig. 24 to 27, when the seat 3 needs to be removed from the support frame 22, the first and second stoppers 91 and 92 are driven to move in the opening direction N so that the first and second stoppers 91 and 92 simultaneously withdraw from the first and second positioning grooves 31 and 32, and the locking device 9 is switched to the unlocking state shown in fig. 26 and 27. At this time, the seat 3 can be lifted upward, and the seat 3 can be easily detached from the support frame 22.

When the seat 3 is required to be mounted on the support frame 22, the locking device 9 is switched to a releasing state under the action of external force, then the first support rod 221 is clamped into the first positioning groove 31 and the second support rod 222 is clamped into the second positioning groove 32, finally the external force is removed, and the elastic element 93 automatically drives the first blocking piece 91 and the second blocking piece 92 to be inserted into the first positioning groove 31 and the second positioning groove 32, so that the first blocking piece 91 and the second blocking piece 92 move to the locking positions. As described above, at this time, the locking device 9 is switched to the locked state shown in fig. 24 and 25, and the seat 3 is locked to the support frame 22. The third embodiment provides a seat connection structure of simple structure, allowing quick assembly and disassembly of the seat 3 and the support frame 22.

An exemplary embodiment in which the first and second catches 91 and 92 are integrally connected is shown in fig. 23. More specifically, the first stopper 91 and the second stopper 92 are integrally connected by a connecting frame 94. To accommodate the connecting frame 94, the top surface of the seat 3 may also be provided with a third slide groove 35, through which third slide groove 35 the first slide groove 33 and the second slide groove 34 communicate. The third chute 35 may have a smaller groove depth than the first chute 33 and the second chute 34. The connecting frame 94 is disposed in the third chute 35, and both ends of the connecting frame 94 are respectively provided with a first surface 941 and a second surface 942 bent downward with respect to the connecting frame 94, the first stopper 91 is connected to the first surface 941, and the second stopper 92 is connected to the second surface 942. The first and second stoppers 91 and 92 are bent in the same direction with respect to the first and second surfaces 941 and 942, respectively. In some embodiments, not shown, the elastic element 93 may comprise at least one spring provided in the first runner 33 and/or the second runner 34, which at least one spring keeps the locking device 9 in the locked state by means of abutment against the first face 941 and/or the second face 942.

Referring to fig. 22, the connecting frame 94 is provided with mounting holes 940, and fasteners 945, such as bolts, are mounted in the mounting holes 940. The bottom wall of the third chute 35 is provided with a fourth elongated hole 351 slidably fitted with a fastener 945, and a first end (threaded end) of the fastener 945 sequentially passes through the mounting hole 940 and the fourth elongated hole 351 and then protrudes downward. When it is desired to remove the seat 3 from the support frame 22, the fastener 945 is manually pushed in the opening direction N (fig. 25), and the fastener 945 is moved along the fourth elongated hole 351 while the driving link 94 is moved, so that the first and second stoppers 91 and 92 are simultaneously withdrawn from the first and second positioning grooves 31 and 32.

Referring to fig. 1 and 22 in combination, in the present third embodiment, the first chute 33, the second chute 34, and the third chute 35 may be covered by the seat portion 3071, so that foreign matter may be prevented from entering to interfere with the movement of the link frame 94. Of course, in some alternative embodiments, the first chute 33, the second chute 34, and the third chute 35 may be obscured by any suitable structure.

Referring to fig. 25 and 27, to facilitate the release operation of the locking device 9, a first end of the fastener 945 is connected to the third release member 95. For example, as shown in fig. 22, the third release member 95 is coupled to the first end of the fastener 945 through the screw hole 950. The third release member 95 may have a large volume to facilitate user operation. In addition, the bottom surface of the seat 3 is also provided with a fourth slide groove 36, the fourth slide groove 36 and the third slide groove 35 are adjacent in the extending direction of the fastener 945, and the fourth slide groove 36 is located between the first slide groove 33 and the second slide groove 34. As can be seen, the fourth runner 36 is located below the third runner 35. The third release lock 95 is received in the fourth chute 36.

With continued reference to fig. 25 and 27, the elastic member 93 in the third embodiment may be a spring installed in the fourth chute 36, which is sandwiched between the side wall of the fourth chute 36 and the third lock release 95, so that the structure is more compact. More specifically, as shown in fig. 22, the first end of the third release lock 95 has a first receiving groove 951, and the first receiving groove 951 is for receiving an end of the elastic member 93. Further, the second end of the third release lock 95 may be provided with a pressing recess 952 that is convenient for pressing by a human hand.

Referring to fig. 24 and 26, a partial region of the fourth chute 36 may be covered by a shutter 361 for shielding the elastic member 93, so that foreign objects from outside can be prevented from interfering with the normal operation of the elastic member 93.

Fourth embodiment

Fig. 28 to 29 schematically show a seat connection structure provided according to a fourth embodiment of the present utility model, which is mainly different from the seat connection structure of the third embodiment described above in the implementation of the locking device 9, and in which components and connection relationships between components can be referred to in the above description of the third embodiment without collision.

Referring to fig. 28, in the present fourth embodiment, the first stopper 91 and the second stopper 92 of the locking device 9 are separated from each other rather than being integrally connected. The first and second sliding grooves 33 and 34 for mounting the first and second stoppers 91 and 92 are formed in one total sliding groove 304, and the groove depth of the total sliding groove 304 may be uniform. In the case where the first positioning groove 31 and the second positioning groove 32 extend in the front-rear direction, the total slide groove 304 extends in the left-right direction, and the extending direction of the total slide groove 304 intersects with the extending directions of the first positioning groove 31 and the second positioning groove 32 substantially perpendicularly. The first and second stoppers 91, 92 are slidably engaged with the main chute 304, and the first and second stoppers 91, 92 are moved toward each other when receiving the pushing force in the opening direction N (fig. 31) to switch the locking device 9 to the unlocking state shown in fig. 32 and 33. The elastic member 93 includes a first spring 931 and a second spring 932, and the first spring 931 and the second spring 932 are disposed at intervals in the front-rear direction and sandwiched between the first stopper 91 and the second stopper 92, respectively. The first spring 931 and the second spring 932 are used to drive the first shutter 91 and the second shutter 92 to move away from each other to switch the locking device 9 to the locked state shown in fig. 30 and 31. Of course, in some embodiments, the first spring 931 and the second spring 932 may alternatively be disposed between the first blocking member 91 and the second blocking member 92, and the effect of driving the first blocking member 91 and the second blocking member 92 away from each other may be achieved.

Referring to fig. 28-30, the locking device 9 further includes a second linkage 96, the second linkage 96 being located in the overall chute 304 and operatively connected to the first and second stops 91, 92. Wherein, when one of the first catch 91 and the second catch 92 is pushed to release one of the first support bar 221 and the second support bar 222, the other of the first catch 91 and the second catch 92 is correspondingly pushed under the action of the second linkage 96 to synchronously release the other of the first support bar 221 and the second support bar 222.

An exemplary structure of the second linkage 96, the first catch 91, and the second catch 92 is shown in fig. 28 and 29.

The first end 901 of the first catch 91 and the first end 902 of the second catch 92 are distanced from each other, the first end 901 of the first catch 91 and the first end 902 of the second catch 92 being adapted to extend into the first detent 31 and the second detent 32, respectively, under the action of the elastic element 93, to lock the first support bar 221 between the first catch 91 and the seat 3 and the second support bar 222 between the second catch 92 and the seat 3. Thereby, the first and second stoppers 91 and 92 block the first and second support bars 221 and 222 from being separated from the first and second positioning grooves 31 and 32, respectively, thereby locking the connection relationship of the first and second support bars 221 and 222 with the seat 3. The second end of the first stopper 91 and the second end (not numbered in the figure) of the second stopper 92, which are close to each other, are provided with a first connection protrusion 911 and a second connection protrusion 921, respectively.

The second link 96 is a rod member with its middle portion connected to the bottom of the main chute 304 by a pivot 963. The first end of the second link 96 is pivotally connected to the first connection boss 911. For example, the first end of the second link 96 is provided with a first post 961, the first connection tab 911 is provided with a fifth elongated hole 9111, and the first post 961 and the fifth elongated hole 9111 are slidably engaged. The second end of the second linkage 96 is pivotally connected to a second connection tab 921. For example, the second end of the second link 96 is provided with a second protrusion 962, and the second connection tab 921 is provided with a sixth elongated hole 9211, and the second protrusion 962 and the sixth elongated hole 9211 are slidably fitted. In some alternative embodiments, the positions of the first post 961 and the fifth elongated hole 9111 on the second linkage 96 and the first connection tab 911 may be interchanged, as may the positions of the second post 962 and the sixth elongated hole 9211 on the second linkage 96 and the second connection tab 921. Of course, the structures of the second linkage 96, the first stopper 91, and the second stopper 92 are not limited to the above examples.

Referring to fig. 30 and 32, a first spring 931 is disposed between an end of the first coupling projection 911 and the second stopper 92, and a second spring 932 is disposed between an end of the second coupling projection 921 and the first stopper 91. More specifically, as shown in fig. 29, the end of the first connection protrusion 911 is provided with a first positioning post 9113, the second stopper 92 is provided with a second receiving groove 9213 at a position opposite to the first positioning post 9113, the first end of the first spring 931 is fitted over the first positioning post 9113, the second end of the first spring 931 extends into the second receiving groove 9213, and the first spring 931 is stably clamped between the first connection protrusion 911 and the second stopper 92. Similarly, the end of the second connection bump 921 is provided with a second positioning post 9215, a third receiving groove 9115 is provided at a position of the first blocking member 91 opposite to the second positioning post 9215, the first end of the second spring 932 is sleeved on the second positioning post 9215, the second end of the second spring 932 extends into the third receiving groove 9115, and the second spring 932 is firmly clamped between the second connection bump 921 and the first connection bump 911.

For space saving, referring to fig. 28 to 31, the bottom surface of the first connection protrusion 911 is provided with a first recess 9112, the first recess 9112 is below the fifth elongated hole 9111, the first end of the second link 96 is received in the first recess 9112, and the first stud 961 passes through the first recess 9112 into the fifth elongated hole 9111. The first recess 9112 is shaped so as not to interfere with rotation of the second linkage 96, e.g., the first recess 9112 is triangular. And, the bottom surface of the second connection bump 921 is provided with a second recess 9212, the second recess 9212 is below the sixth elongated hole 9211, the second end of the second linkage 96 is embedded in the second recess 9212, and the second protrusion 962 passes through the second recess 9212 and enters the sixth elongated hole 9211. The second recess 9212 is shaped so as not to interfere with the rotation of the second linkage 96, for example, the second recess 9212 is triangular.

Referring to fig. 28 and 31, the side wall of the total chute 304 may be provided with a first wedge 97 and a second wedge 98, the first wedge 97 pressing down on the first stopper 91 and the second wedge 98 pressing down on the second stopper 92, thereby restricting the first stopper 91, the second linkage 96 and the second stopper 92 in the total chute 304.

Referring to fig. 1 and 28 in combination, in the present fourth embodiment, the total chute 304 may be covered by the seat portion 3071, so that foreign matter may be prevented from entering to interfere with the movement of the locking device 9. Of course, in some alternative embodiments, the overall chute 304 may be obscured by any suitable structure.

Referring to fig. 29, 31 and 32, the first end 901 of the first stopper 91 and the first end 902 of the second stopper 92, which are distant from each other, are provided with pushing slopes, respectively, specifically, the first end 901 of the first stopper 91 may be provided with a first pushing slope 9011, and the first end 902 of the second stopper 92 may be provided with a second pushing slope 9021. The first pushing inclined plane 9011 and the second pushing inclined plane 9021 are convenient for pushing the first blocking piece 91 and the second blocking piece 92 by a human hand to release the locking device 9, and on the other hand, when the seat 3 and the support frame 22 are installed together, the locking device 9 is not required to be manually released, and the first support rod 221 and the second support rod 222 can release the locking device 9 through abutting with the first pushing inclined plane 9011 and the second pushing inclined plane 9021 respectively, so that the first support rod 221 and the second support rod 222 are easily clamped into the first positioning groove 31 and the second positioning groove 32.

The utility model also provides a child carrier which can be a child cart, a child dining chair and other carriers. The child carrier comprises a main frame 1, a swing bracket assembly 2, a seat 3 and the seat connecting structure, wherein the swing bracket assembly 2 is connected with the seat 3 through the seat connecting structure, and a support frame 22 can be directly or indirectly arranged on the main frame 1.

Fifth embodiment

Fig. 34 to 54 schematically show the structure of a child carrier provided according to a fifth embodiment of the present utility model. Similar to the first and second embodiments described above, the child carrier of the fifth embodiment is also described by taking a child dining chair as an example, and the type of child carrier is not limited to the child dining chair. Referring to fig. 34 and 37, the child carrier includes, for example, a main frame 1, a swing bracket assembly 2, and a seat 3.

Referring to fig. 36 and 37, the structure of the main frame 1 in the present fifth embodiment is similar to that of the main frame 1 in the first embodiment described above. The main frame 1 includes two front foot frames 101, two rear foot frames 102, a front cross bar 1031 connected between the two front foot frames 101, a rear cross bar 1032 connected between the two rear foot frames 102, a folding member 104 connected between the front foot frames 101 and the rear foot frames 102 on the same side, and support pipes 11 provided at the upper portions of the respective front foot frames. The interrelationship of these components can be referred to the description of the first embodiment described above, and will not be repeated here.

Referring to fig. 36, 37 and 49, in the fifth embodiment, a swing bracket assembly 2 is provided on each of the left and right sides of the main frame 1, and each of the left and right sides of the seat 3 is connected to the main frame 1 via a corresponding swing bracket assembly 2. In some embodiments, the swing bracket assembly 2 includes a swing arm 21 and an auxiliary swing arm 29, the auxiliary swing arm 29 being disposed parallel to the swing arm 21, the auxiliary swing arm 29 assisting the swing arm 21 in supporting the seat 3. In order to facilitate the installation of the swing bracket assembly 2, the main frame 1 may further include a third installation housing 17, and the third installation housing 17 is installed on the main frame 1. More specifically, the third mounting housing 17 is mounted on the support pipe 11, and upper ends of the swing arm 21 and the auxiliary swing arm 29 are pivotally connected to the third mounting housing 17, respectively.

Referring to fig. 40, in some embodiments, the third mounting housing 17 may be formed by the fifth housing portion 171 and the sixth housing portion 172 being butted together, e.g., the fifth housing portion 171 and the sixth housing portion 172 being joined together and then secured by screws 179. Wherein the fifth housing part 171 is closer to the longitudinal centre plane of the child carrier than the sixth housing part 172. The sixth housing part 172 has, for example, a third sleeve part 170, which third sleeve part 170 can be fitted over the end of the support tube 11. The connection between the support pipe 11 and the third sleeve portion 170 can be referred to as the connection between the first sleeve portion 150 and the support pipe 11 in the first embodiment described above without any collision. An operation knob 174 (see fig. 36) may be mounted on the sixth housing portion 172, and the function of the operation knob 174 may be referred to as the function of the operation knob 154 in the first embodiment described above.

Referring to fig. 36 and 37, the upper end of the swing arm 21 and the upper end of the auxiliary swing arm 29 are pivotally connected to the third mounting housing 17, respectively, and the lower end of the swing arm 21 and the lower end of the auxiliary swing arm 29 are pivotally connected to the seat 3, respectively, and the swing arm 21 and the auxiliary swing arm 29 parallel to each other constitute two opposite sides of a parallelogram. It will be appreciated that when the swing arm 21 and auxiliary swing arm 29 are swung, the seat 3 will be brought to swing and the seat 3 will be kept level during swinging. The seat 3 remains horizontal during swinging, resulting in a more comfortable and safer seating experience for the child seated on the seat 3. The seat 3 remains horizontal during swinging, allowing the swing arm 21 and the auxiliary swing arm 29 to swing over a range of angles greater than that exemplified in the previous embodiment. For example, the maximum angle α at which the swing arm 21 and the auxiliary swing arm 29 swing back with respect to their own initial positions (see fig. 34, where the swing arm 21 and the auxiliary swing arm 29 are substantially perpendicular to the ground) may be greater than 20 degrees (see fig. 36), for example, may be 25 degrees or even greater than 25 degrees, and the maximum angle β at which the swing forward may be greater than 20 degrees (see fig. 35), for example, may be 25 degrees or even greater than 25 degrees.

Referring to fig. 37, to facilitate connection of each swing bracket assembly 2 to the seat 3, in some embodiments, each swing bracket assembly 2 may further include a connector 28. The connection relationship between the left swing bracket assembly 2 and the seat 3 will be described as an example, and the structure of the right swing bracket assembly 2 is symmetrical to the structure of the left swing bracket assembly 2, and will not be described further.

Referring to fig. 40, 45 and 53, the lower end of the swing arm 21 and the lower end of the auxiliary swing arm 29 are pivotally connected to the link 28, respectively. For example, the lower end of the swing arm 21 is provided with a pivot 219, the lower end of the auxiliary swing arm 29 is provided with a pivot 291 (see fig. 53), the pivot 219 and the pivot 291 are parallel to each other, and the pivot 219 and the pivot 291 are inserted into corresponding mounting holes 2810 of the link body 28, respectively. The connector 28 may be provided with an upwardly extending protrusion 280, and the wall of the protrusion 280 may be provided with a clamping portion 281, where the clamping portion 281 is, for example, an elastic clamping block. Referring to fig. 50, the bottom of the seat 3 is provided with a groove 3062 for receiving the protrusion 280, and the wall of the groove 3062 is provided with a snap hole 30321. Referring to fig. 54, when it is desired to connect the seat 3 and the swing bracket assembly 2, the protrusion 280 of the connector 28 may be inserted into the groove 3062 so that the catching portion 281 and the catching hole 30321 are caught.

The manner in which the connector 28 and the seat 3 are connected is not limited to the above examples, for example, in some alternative embodiments, the positions of the detent 281 and the detent 30321 on the boss 280 and the seat 3 may be interchanged. In some embodiments, the connection between the connector 28 and the seat 3 may be a detachable connection or a non-detachable connection, and the connection of the swing arm 21 and the auxiliary swing arm 29 to the connector 28 may be a detachable connection or a non-detachable connection, respectively. In addition, although the swing arm 21 and the auxiliary swing arm 29 are connected to the seat 3 through the connecting body 28 in the above embodiment, in other embodiments, the swing arm 21 and the auxiliary swing arm 29 may be directly pivotally connected to the seat 3, for example.

Fig. 40 and 53 show an exemplary connection structure of the auxiliary swing arm 29 with the third mounting housing 17. The upper end of the auxiliary swing arm 29 is provided with a pivot 292, and the pivot 292 and the pivot 291 are parallel to each other. The pivot 292 is inserted through the aperture 1703 of the fifth housing portion 171 and into the aperture seat 1721 of the sixth housing portion 172. The pivot 292 is sleeved with a sleeve 293. The sleeve 293 is secured to the pivot 292, for example, by a fastener 295. The sleeve 293 may be made of a material that is wear resistant and has a low coefficient of friction, which reduces friction between the pivot 292 and the third mounting housing 17. The bushing 293 cooperates with a cavity in the third mounting housing 17 to limit the axial position of the pivot 292.

Referring to fig. 36 and 50, an exemplary structure of a seat 3 is shown, the seat 3 is similar to the structure of the seat 3 in the first embodiment described above, and the seat 3 includes a base 305, two guardrails 306, a backrest 307, a dinner plate 308 or a front armrest, and a footrest 309, and in the case of no conflict, the connection relationship between these components of the seat 3 may be referred to the structure of the seat 3 in the first embodiment described above, which will not be described herein.

In some embodiments, a swing limiting mechanism 4 (see fig. 40) is disposed between the swing arm 21 and the main frame 1 on at least one side, and the swing limiting mechanism 4 is used to limit the swing angle of the swing arm 21, so as to control the swing amplitude of the seat 3, so as to consider riding safety and comfort when the seat 3 is in the swing mode. Referring to fig. 36, 38 to 40, a swing limiting mechanism 4 is provided between the swing arms 21 on both the left and right sides and the main frame 1 in the present fifth embodiment. For convenience of explanation, only an exemplary structure of the swing limit mechanism 4 between the swing arm 21 on the left side and the main frame 1 will be described below, and the swing limit structure 4 between the swing arm 21 on the right side and the support pipe 11 is symmetrical to the swing limit structure 4 on the left side, which will not be described further herein.

Referring to fig. 38 to 40, the support tube 11 is provided with a first through hole 110 penetrating transversely through the wall of the support tube 11, the first through hole 110 being near the upper end of the support tube 11. The swing limiting mechanism 4 includes a fixing piece 41, and the fixing piece 41 is fixed to the main frame 1. More specifically, the fixing member 41 is fitted in the first through hole 110, and the fixing member 41 is fixed in the third mounting case 17. Of course, in other embodiments, the fixing member 41 may be fixed to the main frame 1 by other structures, for example, the third mounting housing 17 is mounted on the support tube 11, and the fixing member 41 is not directly sleeved in the first through hole 110 of the support tube 11, but is mounted on other suitable structures of the third mounting housing 17, so that the fixing member 41 is indirectly mounted on the support tube 11 of the main frame 1.

With continued reference to fig. 38-40, the circumferential rotation of the mount 41 is limited. In some embodiments, the wall of the first through hole 110 is provided with a second axial guide 114, which second axial guide 114 is used to guide the axial movement of the fixture 41 when assembled, while limiting the rotation of the fixture 41 relative to the support tube 11 after assembly is completed. In some embodiments, the second axial guide 114 includes, for example, a notch formed on the wall of the first through hole 110, and the outer circumference of the fixing member 41 is provided with a protrusion 4107 engaged with the notch. Of course, there are various embodiments of the second axial guide 114, for example, in some alternative embodiments, the second axial guide 114 may include a protrusion formed on a wall of the first through hole 110, and the outer circumference of the fixing member 41 is correspondingly provided with a sliding groove engaged with the protrusion.

With continued reference to fig. 38 to 40, the fixing member 41 is provided with a limit slot 411, and the extending direction of the limit slot 411 is parallel to the axial direction of the pivot shaft 211 provided at the upper end of the swing arm 21, and thus, the extending direction of the limit slot 411 may also be referred to as the axial direction of the limit slot 411. The stopper slot 411 has, for example, a notch 41101 and a slot bottom 41102, with the notch 41101 facing the fifth housing portion 171. In some embodiments, the fifth housing 171 is provided with a sleeve 1712, the sleeve 1712 is sleeved in the limiting slot 411 of the fixing member 41 via the notch 41101, and the sleeve 1712 plays a supporting role on the fixing member 41. In some embodiments, the groove bottom 41102 is located inside the first through hole 110, and the groove bottom 41102 may be defined by a flange 1105 formed on the first through hole 110. In some alternative embodiments, the groove bottom 41102 may, for example, protrude from the first through-hole 110 and be directly retained by the sixth housing portion 172. The groove bottom 41102 has, for example, a central hole 41100 (see fig. 41).

Referring to fig. 45 and 46, the upper end of the swing arm 21 is provided with a pivot shaft 211, the pivot shaft 211 being non-rotatably connected to the swing arm 21, the pivot shaft 211 being rotatable relative to the fixing member 41. In some embodiments, the pivot 211 is, for example, integrally formed with the swing arm 21. The pivot shaft 211 is inserted into the limiting slot 411, and referring to fig. 38 to 41, the end of the pivot shaft 211 passes through the hole 1704 on the fifth housing 171, enters the limiting slot 411, and then passes out of the central hole 41100 of the slot bottom 41102. In some embodiments, a detent 2117 may be provided on the pivot 211, with an axial stop such as a snap spring 27 engaging the detent 2117, the snap spring 27 abutting the slot bottom 41102 outside the stop slot 411 to limit axial movement of the pivot 211. When the swing arm 21 receives a swing force, the swing arm 21 swings together with the pivot shaft 211 about the axis of the pivot shaft 211.

In some not shown embodiments, a first limiting surface 4111 and a second limiting surface 4112 may be provided on an inner wall of the limiting slot 411. An abutment member 42 is mounted on the pivot shaft 211, and the abutment member 42 is non-rotatably connected to the pivot shaft 211 and located between the first limiting surface 4111 and the second limiting surface 4112. The abutment member 42 restricts the swing angle of the swing arm 21 by its abutment with the first and second stopper surfaces 4111 and 4112. Referring to fig. 40, in some embodiments, the abutment 42 is of a split structure with the pivot 211, the pivot 211 being provided with a clamping groove 2116, for example, the abutment 42 being provided with a bayonet 420, the abutment 42 being engaged in the clamping groove 2116 by means of the bayonet 420. When the seat 3 is in the swing mode, the abutment member 42 restricts the swing angle of the swing arm 21 by its abutment with the first and second stopper surfaces 4111 and 4112. When the swing angle of the swing arm 21 is limited, the swing angle of the auxiliary swing arm 29 is also limited.

Referring to fig. 38 to 40, in some embodiments, a stopper 43 is provided in the stopper slot 411. More specifically, the stopper 43 is, for example, a plate member, and is inserted in the stopper slot 411. A first stopper surface 4111 and a second stopper surface 4112 provided to abut against the abutment 42 are formed on the stopper 43. In some embodiments, the limiting member 43 is slidably engaged with the limiting slot 411, and the limiting member 43 can also lock the swing of the swing arm 21 by changing the position of the limiting member 43 in the limiting slot 411.

Referring to fig. 43, the stopper 43 includes a first region 43a and a second region 43b, and the first region 43a and the second region 43b are sequentially arranged in the extending direction of the stopper slot 411. The first zone 43a has a first limit surface 4111 and a second limit surface 4112, and the second zone 43b is adapted to engage with the abutment 42 to lock the swing of the swing arm 21. The limiter 43 has a first position or a second position, and the first and second regions 43a, 43b selectively mate with the abutment 42 when the limiter 43 is switched between the first and second positions. Referring to fig. 45, when the stopper 43 moves to the first position, the first region 43a cooperates with the abutment 42, the swing arm 21 can swing, the seat 3 is in the swing mode, the abutment 42 abuts against the first stopper surface 4111 or the second stopper surface 4112 along with the swing of the swing arm 21, and the swing angle of the swing arm 21 is controlled. Referring to fig. 46, when the stopper 43 is moved to the second position, the second region 43b is engaged with the abutment 42, the swing arm 21 is locked, and the seat 3 is switched from the swing mode to the fixed mode.

Referring to fig. 43, in some embodiments, the limiter 43 includes a force plate 435 and two arms 436 extending from the force plate 435. Referring to fig. 38 and 39 in combination, the abutment 42 is adjacent to the notch 41101, the force-receiving plate 435 is adjacent to the groove bottom 41102, and the two arms 436 extend from the force-receiving plate 435 in the direction of the notch 41101, that is, the two arms 436 extend in the axial direction of the limit slot 411. The force plate 435 is used for receiving the driving force to axially move the limiting element 43. The force plate 435 has a central hole 4350 and the pivot 211 passes through the central hole 4350.

Referring to fig. 43, to avoid rotation of the limiter 43 relative to the retainer 41, the outer contour of the force plate 435 is of a non-circular configuration. Referring to fig. 41, the side wall 41131 of the limiting slot 411 has a first axial guiding portion 4113 slidably engaged with the force receiving plate 435, and the first axial guiding portion 4113 is used for guiding the axial movement of the limiting member 43. The first and second regions 43a and 43b are formed at different axial positions of each arm 436, such that the first and second regions 43a and 43b selectively mate with the abutment 42 by controlling the reciprocal movement of the stop 43 between the first and second positions. The first zone 43a is closer to the force plate 435 than the second zone 43b in fig. 43. In some alternative embodiments, the axial positions of the first and second regions 43a, 43b may be interchanged such that the first region 43a is farther from the force-receiving plate 435 relative to the second region 43 b.

Referring to fig. 38 and 42, the abutment 42 is located, for example, between the step 4106 in the limit slot 411 and the end of the sleeve 1712, so that the axial movement of the abutment 42 is restricted. Of course, in some alternative embodiments, the axial position of the abutment 42 may also be fixed by other suitable structures. The outer periphery of the abutment 42 is provided with two first groove portions 427, each of the first groove portions 427 including a first end wall 4271 and a second end wall 4272 opposite to each other. The two arms 436 of the limiting member 43 respectively pass through the two first groove portions 427. Referring to fig. 44 and 45, when the first region 43a is engaged with the abutment 42, the swing arm 21 may swing, and the abutment 42 rotates about the axis of the pivot 211. When each first end wall 4271 swings to abut against the first stopper surface 4111 of the corresponding first region 43a, the swing arm 21 cannot continue swinging in the first direction T1. Similarly, when each second end wall 4272 swings to abut against the second limiting surface 4112 of the corresponding first zone 43a, the swing arm 21 cannot continue to swing in the second direction T2. The first direction T1 and the second direction T2 are opposite in direction. It should be noted that, although the number of the arm bodies 436 and the first groove portions 427 is described by taking two as an example, in some alternative embodiments, the number of the arm bodies 436 and the first groove portions 427 may be one or more, respectively.

Referring to fig. 43, the second region 43b of each arm 436 is provided with a first latch 4363, and each first latch 4363 extends radially inward. Referring to fig. 42 and 44, the abutment 42 may also be provided with two second groove portions 428, the two second groove portions 428 being provided at groove bottoms 4273 of the two first groove portions 427, respectively. Referring to fig. 46, when the second section 43b is engaged with the abutment 42, the two second groove portions 428 are adapted to engage with the corresponding first latch 4363, respectively, at which time the abutment 42 and the swing arm 21 are locked from swinging. It will be appreciated that although the number of second slots 428 and first detents 4363 are illustrated as two, in some alternative embodiments, the number of second slots 428 and first detents 4363 may each be one or more, for example.

Referring to fig. 51, in some alternative embodiments, each set of corresponding first slot portions 427 and second slot portions 428 overlap each other. At this time, referring to fig. 52, the structure of the first region 43a of each arm 436 may be unchanged, and the second region 43b of each arm 436 may include a second latch 4365 protruding along a direction perpendicular to the extension direction of each arm 436. When the first region 43a of each arm 436 is engaged with the first groove portion 427, the swing arm 21 can swing. When the second region 43b of each arm 436 is engaged with the first groove 427 (corresponding to the second groove 428 as well), each second latch 4365 is engaged with the corresponding first groove 427, and the swing of the swing arm 21 is locked.

Referring to fig. 38 to 40, a third elastic member 46 is installed in the limiting slot 411, and the third elastic member 46 is used for applying a driving force to the force receiving plate 435 to move the force receiving plate 435 toward the slot bottom 41102. In some embodiments, the third resilient element 46 is, for example, sandwiched between the abutment 42 and the force plate 435. In addition, the child carrier may further include a third swing lock 47, the third swing lock 47 being operatively connected to the force plate 435 to drive the limiter 43 between the first position and the second position. That is, the force plate 435 can move axially along the limiting slot 411 under the action of the third elastic element 46 and the third locking mechanism 47, so that the limiting piece 43 moves to the first position or the second position. As previously described, when the stopper 43 is in the first position, the first region 43a of the arm 436 and the abutment 42 cooperate, and the seat 3 is in the swing mode. When the stopper 43 is in the second position, the second region 43b of the arm body 436 and the abutment 42 are engaged, the swing arm 21 cannot swing, and the seat 3 is in the fixed mode.

Referring to fig. 38-41 and 47 and 48, an exemplary embodiment of the third swing lock mechanism 47 is shown. The third swing lock mechanism 47 includes a driving wheel 471, the driving wheel 471 is sleeved on the pivot shaft 211 through the central hole 4710 and is positioned between the force-receiving plate 435 and the groove bottom 41102, and the driving wheel 471 abuts against the side of the force-receiving plate 435 facing the groove bottom 41102. Wherein, the wall body of the limit slot 411 is provided with a ratchet portion 4117, the driving wheel 471 is provided with a ratchet slot portion 4711, the ratchet slot portion 4711 is provided with a first ratchet slot 47111 with a first slot depth H1 and a second ratchet slot 47112 with a second slot depth H2 in turn in the circumferential direction, and the first slot depth H1 is not equal to the second slot depth H2. The number of ratchet portions 4117, first ratchet grooves 47111, and second ratchet grooves 47112 may be set as desired, for example, in some embodiments, four ratchet portions 4117 and four first ratchet grooves 47111 and four second ratchet grooves 47112, respectively.

Referring to fig. 38, 39, and 47, in some embodiments, the first groove depth H1 is less than the second groove depth H2. The driving wheel 471 is axially moved and circumferentially rotated when receiving the pressing force S, so that the ratchet portion 4117 is sequentially engaged with the first ratchet groove 47111 and the second ratchet groove 47112. In some embodiments, the limiter 43 is in a first position as shown in fig. 45 when the ratchet portion 4117 and the first ratchet slot 47111 are engaged, and the limiter 43 is in a second position as shown in fig. 46 when the ratchet portion 4117 and the second ratchet slot 47112 are engaged. In some alternative embodiments, the stop 43 may be in the second position when the ratchet 4117 and the first ratchet slot 47111 are engaged, and the stop 43 may be in the first position when the ratchet 4117 and the second ratchet slot 47112 are engaged.

Referring to fig. 41, 47 and 48, in order to facilitate driving of the driving wheel 471, the third swing lock mechanism 47 further includes a pressing piece 472. The pressing member 472 has a pressing portion 4721 and a pushing portion 4722 extending from the pressing portion 4721, and the groove bottom 41102 of the limit groove 411 is provided with a mounting hole 41103, and the pushing portion 4722 protrudes into the limit groove 411 through the mounting hole 41103. The pushing portion 4722 is used to apply a pressing force S to the inclined surface 47101 of the first ratchet groove 47111 or the inclined surface 47102 of the second ratchet groove 47112 of the driving wheel 471, so that the driving wheel 471 simultaneously moves axially and rotates circumferentially, and the ratchet portion 4117 of the fixing member 41 is engaged with the first ratchet groove 47111 and the second ratchet groove 47112 in sequence. Referring to fig. 41 and 49, in some embodiments, the pushing portion 4722 includes two pushing arms 47220 extending from the pressing portion 4721, a middle portion of each pushing arm 47220 is provided with a pushing step 47221, and the pushing step 47221 is used to apply a pressing force S to the inclined surface 47101 or the inclined surface 47102 of the driving wheel 471. It will be appreciated that in some alternative embodiments, the number of pusher arms 47220 is not limited to two. Referring to fig. 43, the force plate 435 may be provided with a relief port 4351 corresponding to the position of each pushing arm 47220.

The following describes in detail the operation of the seat 3 to switch between the stationary mode and the swing mode with reference to fig. 41, 45 to 49.

When the seat 3 is in the fixed mode in which the swing arm 21 cannot swing, the ratchet portion 4117 and the second ratchet groove 47112 are engaged, the stopper 43 is in the second position shown in fig. 46, and the first latch 4363 and the second groove 428 are engaged. At this time, the pushing member 472 is pushed once, and the pushing step 47221 of the pushing portion 4722 will cooperate with the inclined surface 47102 to make the driving wheel 471 perform circumferential rotation while moving axially. Axial movement of the drive wheel 471 will drive the stop 43 away from its second position and circumferential rotation of the drive wheel 471 will cause the ratchet portion 4117 to oppose the ramped surface 47101 of the first ratchet slot 47111. Then, the pressing member 472 is released, the third elastic member 46 applies a driving force for moving the force receiving plate 435 to the groove bottom 41102, and then the driving wheel 471 is pushed reversely, and the driving wheel 471 rotates while the inclined surface 47101 of the first ratchet groove 47111 of the driving wheel 471 abuts against the ratchet portion 4117 until the first ratchet groove 47111 engages with the ratchet portion 4117, at this time, the stopper 43 reaches the first position, the swing arm 21 can swing, and the seat 3 is switched to the swing mode.

Similarly, when the seat 3 is in the swing mode, the ratchet portion 4117 is disengaged from the first ratchet groove 47111 and engaged with the second ratchet groove 47112 by pressing the pressing member 472 once, and the stopper 43 reaches the second position, so that the swing arm 21 cannot swing, and the seat 3 is switched to the fixed mode.

In some alternative embodiments, the positions of the ratchet portion 4117 and the ratchet slot 4711 on the wall of the limit slot 411 and the drive wheel 471 may be interchanged. That is, the ratchet portion 4117 is disposed on the driving wheel 471, and the first ratchet groove 47111 and the second ratchet groove 47112 are disposed on the wall of the limit groove 411. In this way, when the driving wheel 471 receives the pressing force S to move axially and rotate circumferentially, the ratchet portion 4117 sequentially engages with the first ratchet groove 47111 and the second ratchet groove 47112 as the driving wheel 471 rotates, and the effect of controlling the switching of the stopper 43 between the first position and the second position can be achieved as well.

Referring to fig. 38 and 39, in some embodiments, the third swing lock mechanism 47 may also include a return spring 473. Thus, after each pressing of the pressing piece 472, the return spring 473 drives the pressing piece 472 back to return the pressing piece 472 to the position for the next pressing.

Referring to fig. 38, 39 and 49, in some embodiments, the end of each push arm may be provided with a hook 47222. The axial distance between the push step 47221 and the hook portion 47222 is greater than the axial length of the drive wheel 471, and the drive wheel 471 is located between the push step 47221 and the hook portion 47222. The hook 47222 is used for hooking the driving wheel 471 after the pressing force S is removed, so as to limit the reset movement distance of the pressing piece 472, and avoid the pushing step 47221 from being far away from the driving wheel 471, which is beneficial to reducing the next pressing stroke of the pressing piece 472. In some embodiments, an outer finger 47223 may be further disposed on each pushing arm, and the outer finger 47223 is disposed in the limiting slot 411 and limited by the slot bottom 41102, so as to prevent the push member 472 from being separated from the fixing member 41.

Referring to fig. 40 and 47, a side of the driving wheel 471 facing the force receiving plate 435 is provided with a projecting ring 4713, an outer diameter of the projecting ring 4713 is smaller than an outer diameter of the driving wheel 471, a gap between an outer circumference of the projecting ring 4713 and an outer circumference of the driving wheel 471 is hooked by the hook portion 47222, and the projecting ring 4713 and the force receiving plate 435 are held against.

Referring to fig. 37 and 40, in some embodiments, a limit recess 1701 is formed on the outside of the third mounting case 17, the limit recess 1701 having a first limit wall 17011 and a second limit wall 17012, and the swing arm 21 swings between the first limit wall 17011 and the second limit wall 17012. The first and second stopper walls 17011 and 17012 also function to limit the swing angle of the swing arm 21. In some embodiments, the exterior of the third mounting housing 17 may also be formed with a limit recess 1702, the limit recess 1702 corresponding to the auxiliary swing arm 29, the limit recess 1702 having a third limit arm 17021 and a fourth limit arm 17022, the auxiliary swing arm 29 swinging between the third limit arm 17021 and the fourth limit arm 17022. The third stopper arm 17021 and the fourth stopper arm 17022 function to restrict the swing angle of the auxiliary swing arm 29.

In addition, in some alternative embodiments, the third swing lock mechanism 47 may not be provided, but the first swing lock mechanism 6 in the first embodiment described above may be provided in the third mounting case 17, and the swing of the swing arm 21 may be locked to switch the seat 3 from the swing mode to the fixed mode.

It should be noted that, although in the above embodiment, the swing limit mechanism 4 is provided between the swing arm 21 and the main frame 1, in other embodiments, the swing limit mechanism 4 may be provided between the auxiliary swing arm 29 and the main frame 1. In addition, in some alternative embodiments, the swing limiting mechanism 4 may not be provided on the support pipe 11, as long as the main frame 1 has any structure capable of positioning the fixing member 41.

In addition, the swing arm 21 and the auxiliary swing arm 29 provided in parallel in the present embodiment can also be applied to the child carrier provided in the above-described first and second embodiments to keep the seat 3 thereof horizontal while swinging in the swing mode.

The extending direction of the limiting slot 411 of the fixing member 41 is parallel to the axial direction of the pivot shaft 211. The stopper 43 is provided in the stopper slot 411 of the fixing member 41. More specifically, the stopper 43 is, for example, a plate member, and is inserted into the stopper slot 411 of the fixing member 41. The position of the limiting piece 43 in the limiting slot 411 is adjustable. The stopper 43 includes a first region 43a and a second region 43b, and the first region 43a has a first stopper surface 4111 and a second stopper surface 4112. The second region 43b is adapted to engage with the abutment 42 to lock the swing arm 21. The stopper 43 is slidably engaged with the stopper slot 411 and has a first position and a second position. When the stopper 43 is in the first position, the first region 43a and the abutment 42 cooperate, and the swing arm 21 can swing within a predetermined angular range. When the stopper 43 is in the second position, the second region 43b is engaged with the abutment 42, and the swing arm 21 is locked from swinging. Embodiments of the stop 43 and abutment 42 may be found in the description above.

The swing mechanism may further be configured with the third swing lock mechanism 47 and the third elastic member 46 described above to adjust the position of the stopper 43 in the stopper slot 411.

Sixth embodiment

Fig. 55 to 72 schematically show the structure of a child carrier provided according to a sixth embodiment of the present utility model. Similar to the child carrier of the first, second and fifth embodiments described above, the child carrier of the sixth embodiment will also be described with respect to a child dining chair. Of course, the type of child carrier is not limited to child dining chairs. Referring to fig. 55, the child carrier includes, for example, a main frame 1, a swing bracket assembly 2, and a seat 3.

Referring to fig. 55, the structure of the main frame 1 in the present sixth embodiment is similar to that of the main frame 1 in the first embodiment described above. The main frame 1 includes two front foot frames 101, two rear foot frames 102, a front cross bar 1031 connected between the two front foot frames 101, a rear cross bar 1032 connected between the two rear foot frames 102, a folding member 104 connected between the front foot frames 101 and the rear foot frames 102 on the same side, and support pipes 11 provided at the upper portions of the respective front foot frames. In the case of no conflict, the mutual relation of these components of the main frame 1 may be referred to the description in the above-mentioned first embodiment, and will not be described here again.

Referring to fig. 55, the seat 3 is similar to the structure of the seat 3 in the first embodiment described above, and includes a base 305, two guardrails 306, a backrest 307, a dinner plate 308, or a front armrest, a footrest 309, etc., and in case of no conflict, the connection relationship between these components of the seat 3 may be referred to the description in the first embodiment described above, and will not be repeated here.

Referring to fig. 55, the left and right sides of the seat 3 are pivotally connected to the main frame 1 through swing bracket assemblies 2, respectively, to be capable of swinging back and forth with respect to the main frame 1, so that the seat 3 has a swing mode. In some embodiments, the swing bracket assembly 2 is pivotally connected to the main frame 1, and the swing bracket assembly 2 is pivotally connected to the seat 3. The child carrier further comprises a seat retaining mechanism 39 (see fig. 62) arranged between the main frame 1 and the seat 3. The seat 3 swings back and forth relative to the main frame 1 by means of the swing bracket assembly 2, and the seat holding mechanism 39 is used to control the seat 3 to be held horizontal during the back and forth swing relative to the main frame 1. In this way, the child seated in the seat 3 does not pitch forward or backward with the swing, effectively avoiding the risk of the child falling off the seat 3. In addition, the seat 3 is kept horizontal during swinging, so that articles on the dinner plate 308 can be effectively prevented from falling.

Referring to fig. 56, in some embodiments, the main frame 1 has a first pivot 183, and the main frame 1 is pivotally connected to the upper end of the swing bracket assembly 2 through the first pivot 183. In order to facilitate the arrangement of the first pivot portion 183, the main frame 1 may further include a fourth mounting case 18, and the first pivot portion 183 is mounted on the fourth mounting case 18. In some embodiments, the fourth mounting housing 18 is mounted, for example, on the support tube 11 of the main frame 1. Of course, in some alternative embodiments, the mounting position of the fourth mounting housing 18 may also be changed according to the change in the structure of the main frame 1.

Referring to fig. 56, in some embodiments, the fourth mounting housing 18 may be butted by the seventh housing portion 181 and the eighth housing portion 182, e.g., the seventh housing portion 181 and the eighth housing portion 182 are joined together and then secured by screws 189. Wherein the seventh housing portion 181 is closer to the longitudinal center plane (alternatively referred to as a bilateral symmetry center plane) of the child carrier than the eighth housing portion 182. The eighth housing part 182 has, for example, a fourth sleeve part 180, which fourth sleeve part 180 can be fitted over the end of the support tube 11. In some embodiments, the fourth sleeve portion 180 and the support tube 11 are fixedly coupled, such as by fasteners, such as screws. An operating knob 184 may be mounted on the eighth housing part 182, the operating knob 184 for example being used to release a locking relationship between the support tube 11 and the front foot rest 101, so that the support tube 11 may be extended and retracted relative to the front foot rest 101 for adjusting the height of the seat 3.

Referring to fig. 57, in some embodiments, the first pivot 183 may include a mounting portion 1832 and a first pivot ring 1833, the mounting portion 1832 being disposed on the fourth mounting housing 18, the first pivot ring 1833 being coupled to the fourth mounting housing 18 by means of the mounting portion 1832. In some embodiments, the mounting portion 1832 may be a male cylindrical structure fixedly coupled with the seventh housing portion 181 of the fourth mounting housing 18 and protruding relative to the seventh housing portion 181. The mounting portion 1832 is not rotatable relative to the fourth mounting housing 18. The cylindrical mounting portion 1832 may be integrally formed with the seventh housing portion 181 or both may be secured together by bolting, riveting, welding. The first pivot ring 1833 is sleeved on the cylindrical mounting portion 1832 and is not rotatable relative to the mounting portion 1832. The first pivot ring 1833 is pivotally coupled to the swing bracket assembly 2. It is understood that the embodiment of the first pivot 183 is not limited to the above example. For example, in some alternative embodiments, the mounting portion 1832 may be a slot provided in the fourth mounting housing 18, the slot having a slot in the seventh housing portion 181 into which the first pivot ring 1833 is inserted, through which the first pivot ring 1833 is non-rotatably sleeved with the mounting portion 1832 in the form of a slot. Or in some alternative embodiments, the first pivot portion 183 may be a single piece rather than being assembled from multiple pieces, in which case the first pivot portion 183 may be integrally formed with the seventh housing portion 181.

With continued reference to fig. 57, in some embodiments, the outer peripheral wall of the cylindrical mounting portion 1832 is provided with at least one second guide slot 18321 and the inner peripheral wall of the first pivot ring 1833 is provided with at least one rib 18333. When the first pivot ring 1833 is mounted to the convex cylindrical mounting portion 1832 along the mounting direction Q1, the second guide groove 18321 and the convex rib 18333 are in concave-convex fit, and the fit of the two guides the first pivot ring 1833 and the convex cylindrical mounting portion 1832 to be sleeved on one hand, and prevents the first pivot ring 1833 and the convex cylindrical mounting portion 1832 from rotating relatively on the other hand. Of course, in some alternative embodiments, the positions of the ribs 18333 and the second guide slots 18321 may be interchanged.

With continued reference to fig. 57, in some embodiments, the outer peripheral wall of the male cylindrical mounting portion 1832 is provided with at least one first resilient arm 18322, the first resilient arm 18322 having a finger 18323. The inner peripheral wall of the first pivot ring 1833 is provided with a catch 18332, which catch 18332 is formed, for example, by a groove 18302 in the inner peripheral wall of the first pivot ring 1833. When the first pivot ring 1833 is mounted to the cylindrical mounting portion 1832 along the mounting direction Q1, after the clip 18332 passes over the protruding finger 18323, the protruding finger 18323 springs back to abut against the clip 18332, so as to effectively prevent the first pivot ring 1833 from being separated from the cylindrical mounting portion 1832.

Referring to fig. 58, in some embodiments, the swing bracket assembly 2 includes a swing housing 23, the swing housing 23 including, for example, a cover 2301 and a fence 2302 extending from an edge of the cover 2301, an opening 2303 enclosed by the fence 2302 may be blocked by the railing 306 of the seat 3. The first pivot 183 is accommodated in the swing case 23. More specifically, the cover 2301 may be provided with the mounting hole 230, and the swing case 23 has the first receiving portion 231 therein corresponding to the mounting hole 230. The first pivot ring 1833 is sleeved in the first receiving portion 231, and the convex cylindrical mounting portion 1832 extends into the swing case 23 through the mounting hole 230 to be sleeved with the first pivot ring 1833. When the seat 3 swings relative to the main frame 1, the swing case 23 rotates relative to the axis of the first pivot ring 1833.

With continued reference to fig. 58, in some embodiments, the child carrier may further include a first axial stop 2311, the first axial stop 2311 being configured to limit axial movement of the first pivot ring 1833 relative to the swing housing 23 to thereby prevent disengagement of the swing housing 23 from the fourth mounting housing 18 of the main frame 1.

Referring to fig. 58 and 65, in some embodiments, the first axial stop mechanism 2311 includes a stop step 23111 and a resilient catch 23112 disposed on a wall of the first receiving portion 231. When the first pivot ring 1833 is engaged with the first receiving portion 231 of the swing case 23 along the mounting direction Q2, the elastic latch 23112 is elastically deformed to allow the first pivot ring 1833 to be fit into the first receiving portion 231. When one end surface of the first pivot ring 1833 abuts against the limiting step 23111, the elastic clamping block 23112 rebounds to abut against the other end surface of the first pivot ring 1833, so that the first pivot ring 1833 is clamped between the limiting step 23111 and the elastic clamping block 23112.

With continued reference to fig. 65, in some embodiments, the outer peripheral wall of the first pivot ring 1833 is provided with a first guide groove 18331, and the resilient latch 23112 is slidably engaged with the first guide groove 18331 during the installation of the first pivot ring 1833 with the swing case 23. The groove depth H3 of the first guide groove 18331 becomes gradually larger along the mounting direction Q2 of the first pivot ring 1833, and/or the width W of the first guide groove 18331 becomes gradually larger along the mounting direction Q2 of the first pivot ring 1833. This design of the first guide groove 18331 is advantageous in reducing the difficulty in mounting the swing case 23 and the first pivot ring 1833.

Referring to fig. 59 and 60, the lower end of the swing bracket assembly 2 is pivotally connected to the guard rail 306 of the seat 3. In some embodiments, the railing 306 of the seat 3 has a second pivot 38, and the railing 306 of the seat 3 is pivotally connected to the lower end of the swing bracket assembly 2, and more specifically, the lower end of the swing housing 23, by the second pivot 38. In some embodiments, the second pivot 38 includes a second pivot ring 382, and the second pivot ring 382 is fixedly connected to the guardrail 306. In some embodiments, the second pivot 38 may be integrally formed with the guardrail 306, or both may be secured together by bolting, riveting, welding. The second pivot ring 382 is not rotatable relative to the railing 306 of the seat 3.

Referring to fig. 58 and 59, in some embodiments, the swing case 23 has a second receiving portion 232, and the second pivot ring 382 is nested in the second receiving portion 232 of the swing case 23 when the opening 2303 of the swing case 23 is snapped onto the rail 306. When the seat 3 swings relative to the main frame 1, the second pivot ring 382 and the swing case 23 can relatively rotate.

Referring to fig. 59 and 65, in some embodiments, the child carrier further includes a second axial stop 2312, the second axial stop 2312 being configured to limit axial movement of the swing housing 23 relative to the second pivot collar 382, thereby preventing separation of the swing housing 23 from the railing 306.

With continued reference to fig. 59 and 65, in some embodiments, the second axial stop mechanism 2312 includes a second resilient arm 23121 located in the second receptacle 232. When the swing housing 23 is connected to the guardrail 306, the second elastic arm 23121 passes through the inner hole 3820 of the second pivot ring 382, and then the finger 231211 of the second elastic arm 23121 is clamped to the edge of the inner hole 3820, so that the swing housing 23 is connected to the guardrail 306.

Referring to fig. 61 and 62, the seat holding mechanism 39 is mounted to the swing case 23 of the swing bracket assembly 2, and is disposed between the main frame 1 and the seat 3. More specifically, the seat holding mechanism 39 is connected between the first pivot portion 183 and the second pivot portion 38. The seat holding mechanism 39 is configured to: when the seat 3 swings back and forth with respect to the main frame 1, the swing bracket assembly 2 swings in one direction by a first angle about the first pivot 183 (more specifically, the axis of the first pivot 1833) (see fig. 69 and 71), and the seat 3 swings in the opposite other direction by a first angle about the second pivot 38 (more specifically, the axis of the second pivot 382) under the action of the seat holding mechanism 39. In this way, the rotation of the seat 3 in both directions is canceled, and the process of swinging the seat 3 back and forth with respect to the main frame 1 is kept horizontal.

The seat 3 remains horizontal during the swinging process, allowing the swing bracket assembly 2 to have a large swing amplitude. For example, the maximum angle at which the swing bracket assembly 2 swings back with respect to its initial position (see fig. 66, in which the swing case 23 of the swing bracket assembly 2 is substantially perpendicular to the ground) is not limited to within 20 degrees, and may be, for example, up to or greater than 25 degrees, and the maximum angle at which the swing bracket assembly swings forward may be not limited to within 20 degrees, and may be, for example, up to or greater than 25 degrees.

The seat holding mechanism 39 may be of various embodiments as long as the above-described effect of holding the seat 3 horizontally during the back-and-forth swinging can be achieved. Fig. 62 shows an exemplary structure of the seat holding mechanism 39. The seat retaining mechanism 39 includes a gear train 391, the gear train 391 being mounted within the swing housing 23, the gear train 391 may include, for example, a drive gear 3911, the drive gear 3911 being mounted on a support column 2309 (see fig. 65), the support column 2309 being connected to the cover 2301. The transfer gear 3911 has a third tooth 39111 and a fourth tooth 39112. The first pivot 183 includes a first tooth 1831, the first tooth 1831 being formed, for example, on a portion of the outer peripheral wall of the first pivot 1833. The second pivot portion 38 includes a second tooth portion 381, and the second tooth portion 381 is formed on a part of the outer peripheral wall of the second pivot ring 382, for example. The first tooth 1831 and the second tooth 381 are respectively in meshing engagement with the drive gear 3911 of the gear train 391, and more specifically, the first tooth 1831 is in meshing engagement with the third tooth 39111 of the drive gear 3911 and the second tooth 381 is in meshing engagement with the fourth tooth 39112 of the drive gear 3911.

Next, the positional relationship among the first tooth 1831, the transmission gear 3911, and the second tooth 381 when the seat 3 swings relative to the main frame 1 will be described with reference to fig. 66 to 71, and further, the seat 3 swings relative to the main frame 1 while being kept horizontal.

Referring to fig. 66 and 67, the seat 3 is at the lowest position of swing at this time, and the swing angle of the seat 3 is zero. In the drawing, reference symbol O' denotes the pivot center of the first pivot ring 1833, and reference symbol O "denotes the pivot center of the second pivot ring 382. The line X between the pivot center O' and the pivot center o″ is now substantially perpendicular to the ground, and the backrest 307 of the seat 3 forms an angle δ with respect to the line X.

Referring to fig. 68 and 69, the seat 3 is swung rearward in the first direction T1 with respect to the main frame 1 at this time. At this time, a line X between the pivot center O' and the pivot center O″ forms an angle θ with a vertical line Z, which is perpendicular to the ground. The included angle θ is a first angle by which the swing case 23 swings in the Y1 direction about the pivot center O'. The swing of the swing housing 23 drives the transmission gear 3911 to rotate relative to the first pivot ring 1833, and the rotation of the transmission gear 3911 drives the second pivot 38 and the seat 3 to swing around the pivot center o″ in the Y2 direction by a first angle, and the Y2 direction is opposite to the Y1 direction. At this time, the backrest 307 of the seat 3 forms an angle δ+θ with respect to the line X, that is, the angle between the backrest 307 and the vertical line Z remains δ, that is, the seat 3 remains horizontal during the backward swing.

Referring to fig. 70 and 71, the seat 3 swings forward in the second direction T2 with respect to the main frame 1. At this time, the line X between the pivot center O' and the pivot center o″ forms an angle η with the vertical line Z. The included angle η is a first angle by which the swing case 23 swings in the Y3 direction about the pivot center O'. The swing of the swing housing 23 drives the transmission gear 3911 to rotate relative to the first pivot ring 1833, and the rotation of the transmission gear 3911 drives the second pivot 38 and the seat 3 to swing around the pivot center o″ in the Y4 direction by a first angle, and the Y4 direction is opposite to the Y3 direction. At this time, the backrest 307 of the seat 3 forms an angle δ - η with respect to the line X, i.e., the angle between the backrest 307 and the vertical line Z remains δ, and the seat 3 remains horizontal during the forward swing.

It should be noted that, although the above embodiment illustrates the gear train 391 as one transmission gear 3911, in some alternative embodiments, the gear train 391 may further include two or more transmission gears 3911. More specifically, the first tooth portion 1831 is engaged with, for example, one of the transmission gears 3911 of the gear train 391, and the second tooth portion 381 is engaged with, for example, the other transmission gear 3911 of the gear train 391, and the two transmission gears 3911 may be engaged directly or indirectly, as well as the effect of controlling the seat 3 to remain horizontal during the back-and-forth swinging with respect to the main frame 1.

Referring to fig. 62, 64 and 65, in some embodiments, the child carrier may further include a first swing limiting mechanism 481, where the first swing limiting mechanism 481 is configured to limit the swing angle of the swing case 23 relative to the main frame 1, so as to control the swing amplitude of the seat 3 within a safety range, so as to achieve both riding safety and comfort when the seat 3 is in the swing mode.

The first swing limiting mechanism 481 can have a variety of embodiments. Referring to fig. 62, in some embodiments, the first swing limiting mechanism 481 includes a first groove 4810 and a first abutment 4811. The first groove 4810 may be disposed on an outer peripheral wall of the first pivot ring 1833, and the first resisting portion 4811 may be disposed on a wall of the first accommodating portion 231, where the first resisting portion 4811 extends into the first groove 4810. When the swing case 23 swings, the first abutment 4811 abuts against one of the two end walls 48101 of the first groove 4810, thereby restricting the swing angle of the swing case 23. Of course, in some alternative embodiments, the positions of first groove 4810 and first abutment 4811 may be interchanged.

With continued reference to 59, fig. 62, and fig. 65, in some embodiments, the child carrier may further include a second swing limit mechanism 482, where the second swing limit mechanism 482 is used to limit the swing angle of the seat 3 relative to the swing housing 23 or the main frame 1, and also serves to control the swing amplitude of the seat 3 within a safe range.

The second swing limiting mechanism 482 may have a variety of embodiments. Referring to fig. 62, in some embodiments, the second swing limiting mechanism 482 includes a second groove 4820 and a second abutment 4821. The second groove 4820 may be disposed on an outer peripheral wall of the second pivot ring 382, the second resisting portion 4821 may be disposed on a wall of the second accommodating portion 232, and the second resisting portion 4821 extends into the second groove 4820. When the swing case 23 swings, the second abutment 4821 abuts against one of the two end walls 48201 of the second groove 4820, thereby restricting the swing angle of the seat 3. Of course, in some alternative embodiments, the positions of second groove 4820 and second abutment 4821 may be interchanged.

Referring to fig. 62-65, in some embodiments, the child carrier may also be configured with a fourth swing lock mechanism 483. The fourth swing lock mechanism 483 indirectly locks or unlocks the swing of the seat 3, for example, by locking or unlocking the swing of the swing case 23, so that the seat 3 is switched between the fixed mode and the swing mode. It will be appreciated that the seat 3 cannot swing relative to the main frame 1 when the seat 3 is in the fixed mode. The fourth swing lock 483 may have various embodiments, for example, in some alternative embodiments, the fourth swing lock 483 may include a lock pin that resiliently protrudes from the seventh housing portion 181 of the fourth mounting housing 18, and a release for controlling the retraction of the lock pin. A lock hole is provided on the guard rail 306 of the seat 3, and when the lock pin is inserted into the lock hole, the seat 3 is switched to the fixed mode. When the lock pin remains withdrawn from the lock hole, the seat is switched to the swing mode.

Fig. 62 to 65 show an exemplary embodiment of a fourth swing lock mechanism 483, the fourth swing lock mechanism 483 locking the swing of the swing case 23 by locking the transmission gear 3911. More specifically, the fourth swing lock mechanism 483 is mounted to the swing case 23 and includes a fourth release lock 4831 and a lock block 4832. When the child carrier is in the fixed mode, the locking piece 4832 is inserted into the limiting groove 3910 of the transmission gear 3911, and the transmission gear 3911 is locked and cannot rotate, so that the second pivot portion 38, the swing housing 23 and the seat 3 cannot swing. As can be seen in fig. 64, the spacing groove 3910 is located between the third tooth 39111 and the fourth tooth 39112. The fourth release 4831 is operably coupled to the lock 4832 such that the fourth release 4831 can actuate the lock 4832 out of the stop slot 3910 to switch the child carrier from the stationary mode to the swing mode.

In some embodiments, fourth release 4831 may be directly or indirectly coupled to lock block 4832. Referring to fig. 63-65, in some embodiments, the fourth swing lock mechanism 483 further includes a drive member 4833 with the lock block 4832 mounted on the drive member 4833. More specifically, the lock block 4832 may be integrally formed on the driving member 4833. The fourth release member 4831 drives the lock block 4832 via the driving member 4833. By means of the arrangement of the driving member 4833, the fourth release member 4831 can be arranged in any suitable position as desired, e.g. as desired for a spatial layout.

In some embodiments, the driving member 4833 is slidably engaged with the swing case 23, the fourth lock release member 4831 is slidably engaged with the swing case 23, and the sliding directions of the fourth lock release member 4831 and the driving member 4833 intersect, which contributes to the compactness of the fourth swing lock mechanism 483. In some embodiments, the sliding direction of the fourth release member 4831 can be perpendicular to the sliding direction of the driving member 4833.

Referring to fig. 64, in some embodiments, the swing case 23 has a seventh elongated hole 233, and the fourth release 4831 has an operating portion 48311 and a third cylinder 48312 extending from the operating portion 48311, the third cylinder 48312 being in sliding engagement with the seventh elongated hole 233. When it is desired to switch the child carrier between the stationary mode and the swing mode, the user may operate the operation portion 48311 so that the third cylinder 48312 slides along the seventh elongated hole 233 and the fourth release member 4831 may be moved to the release position (fig. 62, 66-71) or the locking position (fig. 63 and 72). It will be appreciated that the fourth lock release 4831 is configured such that the lock block 4832 is withdrawn from the limit groove 3910 (fig. 62) when the fourth lock release 4831 is in the lock release position, and the seat 3 can swing back and forth relative to the main frame 1. When the fourth lock release member 4831 is in the locked position, the lock block 4832 is inserted into the stopper groove 3910 (fig. 63), and the seat 3 is not allowed to swing back and forth with respect to the main frame 1.

Referring to fig. 65, in some embodiments, the cover 2301 of the swing housing 23 may be provided with a guide structure 2308, with the drive 4833 being in sliding engagement with the guide structure 2308. The driver 4833 can also be provided with a receiving aperture 48338 that slidingly engages the support column 2309. The driving member 4833 has a third connection hole 48330, and the third connection hole 48330 has a third sloped wall 483301. The third cylinder 48312 passes through the seventh elongated hole 233 and then enters the third connecting hole 48330. Referring to fig. 62 and 63, when the fourth lock release member 4831 is moved from the locking position to the unlocking position, the third cylinder 48312 pushes the third inclined wall 483301 so that the driving member 4833 drives the locking piece 4832 to disengage from the limiting groove 3910. In some embodiments, a capped screw may be mounted in a central bore (not numbered) of the third cylinder 48312, with the cap of the screw abutting the drive member 4831, thereby preventing the fourth release member 4831 from falling off the drive member 4833. Of course, in some alternative embodiments, the fourth lock 4831 can be prevented from falling off the driving member 4833 by other limiting structures.

In some embodiments, not shown, the third connection hole 48330 may be an elongated hole, and the third connection hole 48330 is inclined with respect to the seventh elongated hole 233. When the fourth lock release member 4831 slides between the lock release position and the lock position, the third cylinder 48312 directly drives the driving member 4833 to slide, so that the lock block 4832 is inserted into or separated from the limiting groove 3910.

Referring to fig. 62 and 63, in some embodiments, the third connecting hole 48330 is generally triangular, one end of the third inclined wall 483301 has a third limiting portion 483302, and the third limiting portion 483302 is configured to be engaged with the third cylinder 48312 to maintain the fourth locking member 4831 in the locking position. Thereby, the fourth lock release member 4831 is held in the lock release position by a simple structure.

With continued reference to fig. 62 and 63, in some embodiments, the fourth swing lock mechanism 483 may further include a fourth resilient element 4834, the fourth resilient element 4834 being configured to drive the lock block 4832 into the limit slot 3910. The fourth elastic element 4834 is, for example, a spring, mounted between the driving member 4833 and the enclosure 2302 of the swing case 23.

Referring to fig. 65, the wall of the seventh elongated hole 233 may be further provided with an elastic claw 2331, and the elastic claw 2331 may clamp the third cylinder 48312 to hold the fourth release lock 4831 in the locking position when the fourth release lock 4831 is moved to the locking position.

Referring to fig. 64 and 65, in some embodiments, the driver 4833 can include oppositely disposed first and second sides 48331, 48332, and a third side 48333 connected between the first and second sides 48331, 48332. The transfer gear 3911 is located between the first side 48331 and the second side 48332, and the first side 48331 and the second side 48332 are each provided with a receiving hole 48338 for sliding engagement with the support column 2309. The lock block 4832 is disposed on the third side 48333. In some embodiments, the lock block 4832 may be integrally formed with the driver 4833, and the interior of the lock block 4832 may form a recess 48320 for receiving the fourth resilient element 4834.

Seventh embodiment

Fig. 73 and 74 schematically show the structure of a child carrier provided according to a seventh embodiment of the present utility model. The child carrier provided by this embodiment is a modification of the sixth embodiment described above. In the case of no conflict, the structure of the parts and the connection relationship between the parts in the present embodiment can be referred to the description in the above-described sixth embodiment. The present embodiment mainly differs from the sixth embodiment described above in the embodiment of the seat holding mechanism 39 and the embodiment of the swing lock mechanism for locking the swing of the seat 3. The differences between the present embodiment and the sixth embodiment described above will be mainly described below.

The seat holding mechanisms 39 are arranged, for example, symmetrically on both sides of the seat 3. Referring to fig. 75 and 76, the seat retaining mechanism 39 may include a sliding pin 392 and a sliding slot 393. One of the slide pin 392 and the slide groove 393 is provided on the main frame 1, and the other is provided on the seat 3. When the swing bracket assembly 2 swings relative to the main frame 1, the slide pins 392 and the slide grooves 393 are slidably engaged, and the process of controlling the seat 3 to swing back and forth relative to the main frame 1 is kept horizontal.

As described with reference to the above embodiments, in some embodiments, the main frame 1 may include fourth mounting cases 18 symmetrically arranged on the left and right sides. Referring to fig. 75, a slide pin 392 may be provided on the fourth mounting housing 18, the slide pin 392 being, for example, parallel to the swing axis of the seat 3, i.e., the axis of the seat 3 swinging relative to the main frame 1. In some embodiments, referring to fig. 76, the seventh housing portion 181 of the fourth mounting housing 18 is provided with a fourth bore 1810 with a sliding pin 392 disposed therethrough in the fourth bore 1810. In some embodiments, to provide adequate support for the sliding pin 392, a male hollow post 1812 is provided on the seventh housing portion 181, with a central bore of the hollow post 1812 being the fourth bore 1810.

In some embodiments, the seat 3 may include side rails 306 symmetrically disposed on the left and right, as described with respect to the previous embodiments. Referring to fig. 75, a sliding groove 393 may be provided on the rail 306, and the sliding groove 393 may be in the shape of an arc-shaped groove. The cooperation of the arc-shaped groove and the sliding pin 392 does not affect the forward and backward swinging of the seat 3 relative to the main frame 1, and can also ensure the level of the seat 3 in the swinging process, and avoid the seat 3 from pitching forward or leaning backward. Referring to fig. 78, when the seat 3 is mounted to the support frame 1, the end of the hollow column 1812 abuts against the rail 306 of the seat 3 such that the sliding pin 392 extending from the fourth through hole 1810 extends into the sliding groove 393.

Although in the above-described embodiment the slide pin 392 is provided on the fourth mounting housing 18 of the main frame 1 and the slide groove 393 is provided on the rail 306 of the seat 3, in some alternative embodiments the positions of the slide pin 392 and the slide groove 393 on the main frame 1 and the seat 3 may be interchanged.

Referring to fig. 75 and 77, the seat holding mechanism 39 in the present embodiment controls the level during swinging of the seat 3 by the cooperation of the slide pin 392 and the slide groove 393, whereby the gear train 391 in the above-described sixth embodiment can be omitted. Accordingly, the fourth swing lock mechanism 483 for locking the transmission gear 3911 in the sixth embodiment described above may also be omitted. The seat holding mechanism 39 provided in this embodiment is simple in structure and easy to implement. It should be noted that, although the first tooth portion 1831 is still shown on the first pivot ring 1833 of the first pivot portion 183 in fig. 76, and the second tooth portion 381 is still shown on the second pivot ring 382 of the second pivot portion 38 in fig. 80, there is no meshing relationship between the first tooth portion 1831 and the second tooth portion 381 on the basis of omitting the gear train 391. The first tooth 1831 and the second tooth 381 may be omitted in practical applications in this embodiment.

With continued reference to fig. 75, in some embodiments, a locking aperture 30 is provided in the sliding slot 393, the locking aperture 30 being located, for example, in the middle of the sliding slot 393. In some embodiments, the locking hole 30 may be, for example, a through hole or a blind hole. Referring to fig. 78 and 79, the sliding pin 392 has a locked position and an unlocked position. When the slide pin 392 is in the lock position shown in fig. 79, the slide pin 392 extends into the lock hole 30, and the swing of the seat 3 is locked. The locked seat 3 is not easily rotated relative to the main frame 1. Referring to fig. 78, when the slide pin 392 is in the lock release position, the slide pin 392 is withdrawn from the lock hole 30 while still being in sliding engagement with the slide groove 393, thereby releasing the swinging of the seat 3.

Referring to fig. 80-82, in some implementations, the child carrier further includes a fifth swing lock mechanism 6a, the fifth swing lock mechanism 6a being used to control the extension and retraction of the sliding pin 392 to lock or unlock the swing of the seat 3. In some embodiments, the fifth swing lock mechanism 6a may include a fifth release 61a and a fifth elastic element 63a, the fifth release 61a being used to directly or indirectly drive the sliding pin 392 to withdraw from the lock hole 30, and the fifth elastic element 63a being used to drive the sliding pin 392 to insert into the lock hole 30.

Referring to fig. 82, in some embodiments, the fifth lock release 61a is movable back and forth relative to the fourth mounting housing 18 to switch to the lock release position or the lock position. The seventh housing portion 181 and/or the eighth housing portion 182 may be provided with a structure that guides the movement of the fifth release 61 a. When the fifth lock release 61a is in the lock release position, the sliding pin 392 is withdrawn from the lock hole 30 to slidably engage with the sliding groove 393. When the fifth release 61a is in the locked position, the sliding pin 392 extends into the locking hole 30. In some embodiments, the sliding pin 392, when extended into the locking aperture 30, for example, holds the seat 3 in the lowermost position shown in fig. 83. In some embodiments, the locking holes 30 may be provided in plural numbers so that the seat 3 may be locked at different heights.

Referring to fig. 80-82, in some embodiments, a middle portion of the sliding pin 392 may be provided with a second annular flange 3923, the second annular flange 3923 dividing the sliding pin 392 into a first portion 3921 and a second portion 3922. The first portion 3921 extends outwardly through the fourth aperture 1810 for insertion into the locking aperture 30. The eighth housing portion 182 may be provided with a mounting hole 1820 with the second portion 3922 axially movably disposed in the mounting hole 1820. The fifth elastic element 63a is, for example, a spring, which is fitted over the second portion 3922. The fifth release member 61a has an eighth elongated hole 611a, and the eighth elongated hole 611a may be a linear hole or an arc hole. The wall of the eighth elongated hole 611a is formed with a second stop table 612a extending obliquely. The second annular flange 3923 is clamped between the second stop table 612a and the fifth elastic element 63 a. When the fifth release 61a moves to the release position, the second stop 612a pushes the second annular flange 3923 to move axially, so that the sliding pin 392 is withdrawn from the locking hole 30. When the fifth release 61a moves to the locking position, the second stop 612a escapes the axial space. The fifth elastic member 63a drives the sliding pin 392 to move to be inserted into the locking hole 30. Of course, there are various structures for controlling the axial expansion and contraction of the sliding pin 392 by the fifth release 61a, and the present invention is not limited to the above examples.

Referring to fig. 82, in some embodiments, the walls of the eighth elongated hole 611a may also be provided with a snap tab 616a. The detent 616a is adapted to cooperate with the slide pin 392 to positively retain the fifth release member 61a in the release position. More specifically, during the movement of the fifth lock release 61a to the lock release position, after the engaging protrusion 616a passes over the sliding pin 392, the engaging protrusion 616a engages with the sliding pin 392 to hold the fifth lock release 61a in the lock release position.

Referring again to fig. 82, in some embodiments, a shaft 1811 is provided in the fourth mounting housing 18, for example, and the fifth release lock 61a has a hole 601, the hole 601 being nested on the shaft 1811. The fifth release 61a rotates about the rotation shaft 1811 to switch between the release position and the lock position. In some embodiments, to facilitate operation of the fifth release 61a, the fifth release 61a may have a fifth dial 613a. In some alternative embodiments, the rotation shaft 1811 may not be provided, and the movement of the fifth release 61a may be guided by other structures.

Fig. 83 to 85 show the positional relationship of the slide pin 392 and the slide groove 393 when the seat 3 swings relative to the main frame 1, and the positional change of the seat 3 during the swinging.

Referring to fig. 83, the seat 3 is at the lowest position of swing, and the swing angle of the seat 3 is zero. In the drawing, reference symbol O' denotes the pivot center of the first pivot ring 1833, and reference symbol O "denotes the pivot center of the second pivot ring 382. The line X between the pivot center O' and the pivot center o″ is now substantially perpendicular to the ground, and the backrest 307 of the seat 3 forms an angle δ with respect to the line X.

Referring to fig. 84, the seat 3 swings backward in the first direction T1 with respect to the main frame 1. At this time, a line X between the pivot center O' and the pivot center O″ forms an angle θ with a vertical line Z, which is perpendicular to the ground. The included angle θ is a first angle by which the swing case 23 swings in the Y1 direction about the pivot center O'. The seat 3 swings in the Y2 direction by a first angle about the pivot center o″ with the cooperation of the slide pin 392 and the slide groove 393 while the seat 3 moves rearward together with the swing case 23, the Y2 direction being opposite to the Y1 direction. At this time, the backrest 307 of the seat 3 forms an angle δ+θ with respect to the line X, that is, the angle between the backrest 307 and the vertical line Z remains δ, that is, the process of swinging the seat 3 backward remains horizontal.

Referring to fig. 85, the seat 3 swings forward in the second direction T2 with respect to the main frame 1. At this time, the line X between the pivot center O' and the pivot center o″ forms an angle η with the vertical line Z. The included angle η is a first angle by which the swing case 23 swings in the Y3 direction about the pivot center O'. The seat 3 swings in the Y4 direction by a first angle about the pivot center o″ with the cooperation of the slide pin 392 and the slide groove 393 while the seat 3 moves rearward together with the swing case 23, the Y4 direction being opposite to the Y3 direction. At this time, the backrest 307 of the seat 3 forms an angle δ—η with respect to the line X, that is, the angle between the backrest 307 and the vertical line Z remains δ, and the forward swinging of the seat 3 is maintained horizontal.

Fig. 86 to 92 show a variant embodiment of the child carrier, which variant embodiment is a variant of the embodiment shown in fig. 75 to 85. More specifically, this modified embodiment mainly makes a change in the structure of the swing bracket assembly 2. The structure of the components of this modified embodiment and the connection relationship between the components can be found in the above description without conflict. The differences between this modified embodiment and the embodiment shown in fig. 75 to 85 will be mainly described below.

Referring to fig. 86 and 87, in this variant embodiment, the seat retaining mechanism 39 further comprises a first lasso 2a, the first lasso 2a being fitted over the first pivot ring 1833 and the second pivot ring 382 in a tensioned manner. In this modified embodiment, the first teeth 1831 and the second teeth 381 are no longer provided on the first pivot ring 1833 and the second pivot ring 382, respectively, and the first guide groove 18331 is no longer provided on the first pivot ring 1833. In this modified embodiment, the structure of the connection between the main frame 1 and the first pivot ring 1833 can be referred to as the structure of the connection between the main frame 1 and the first pivot ring 1833 shown in fig. 75, and will not be described herein. Referring to fig. 87, the first lasso 2a connects the first pivot ring 1833 and the second pivot ring 382 within the swing case 23, thereby improving the stress condition of the swing case 23. The first lasso 2a may be, but is not limited to, a wire rope.

Referring to fig. 86, in some embodiments, the outer peripheral wall of the first pivot ring 1833 is provided with a first annular groove 1833a, and the first lasso 2a bypasses the first annular groove 1833a. The first circumferential groove 1833a provides an axial location for the first lasso 2a, preventing the first lasso 2a from accidentally falling off the first pivot ring 1833. The outer peripheral wall of the second pivot ring 382 is provided with a second annular groove 382a, and the first lasso 2a bypasses the second annular groove 382a. The second annular groove 382a provides an axial location for the first lasso 2a, preventing the first lasso 2a from accidentally falling off the second pivot ring 382.

Referring to fig. 86 and 88, in some embodiments, a first positioning mechanism 183a is disposed between the first lasso 2a and the first pivot ring 1833, the first positioning mechanism 183a being configured to limit relative movement of the top portion of the first lasso 2a with respect to the top portion of the first pivot ring 1833. In some embodiments, the first positioning mechanism 183a may be disposed at a top contact position of the first lasso 2a and the first ring groove 1833a, and more specifically, the first positioning mechanism 183a includes, for example, a positioning groove 18301 disposed in the first ring groove 1833a, and a latch 201a disposed on the first lasso 2a, the latch 201a being latched into the positioning groove 18301. Of course, the structure of the first positioning mechanism 183a is not limited thereto. In some alternative embodiments, first positioning mechanism 183a includes, for example, a fastener that secures the top of first lasso 2a with the top of first pivot ring 1833.

With continued reference to fig. 86 and 88, in some embodiments, a second positioning mechanism 38a is disposed between the first lasso 2a and the second pivot ring 382, the second positioning mechanism 38a being configured to limit relative movement of the bottom portion of the first lasso 2a with respect to the bottom portion of the second pivot ring 382. In some embodiments, the second positioning mechanism 38a may be disposed at a bottom contact location of the first lasso 2a and the second ring groove 382 a. In some embodiments, the second positioning mechanism 38a includes, for example, a positioning groove 38201 disposed in the second ring groove 382a, and a latch 202a disposed on the first lasso 2a, the latch 202a being latched into the positioning groove 38201. Of course, the structure of the second positioning mechanism 38a is not limited thereto. In some alternative embodiments, the second positioning mechanism 38a includes, for example, a fastener that secures the bottom of the first lasso 2a with the bottom of the second pivot ring 382.

Referring to fig. 90, the seat 3 is at the lowest position of swing, and the swing angle of the seat 3 is zero. Referring to fig. 91, the seat 3 swings backward in the first direction T1 with respect to the main frame 1. Referring to fig. 92, the seat 3 swings forward in the first direction T1 with respect to the main frame 1. In this modified embodiment, the first lasso 2a is fixedly connected to the first ring groove 1833a by the first positioning mechanism 183a and fixedly connected to the second ring groove 382a by the second positioning mechanism 38a, and the first lasso 2a can also assist in maintaining the level of the seat 3 during the swinging of the seat 3 back and forth with respect to the main frame 1. Specifically, when the seat 3 swings back and forth, the seat 3 rotates at an angle relative to the swing case 23 by the first lasso 2a to compensate for the rotation of the swing case 23 relative to the main frame 1, thereby assisting the seat holding mechanism 39 to secure the level of the seat 3 during swinging. The seat holding mechanism 39 employs, for example, the slide pin 392 and the slide groove 393 described above.

Fig. 93 to 99 show another variant embodiment of the child carrier, which is modified from the variant embodiment shown in fig. 86 to 92. More specifically, this alternative embodiment mainly makes a change in the structure of the swing bracket assembly 2. The structure of the components of this other modified embodiment and the connection relationship between the components can be found in the above description without conflict. The difference between this other modified embodiment and the modified embodiment shown in fig. 86 to 92 will be mainly described below.

Referring to fig. 93 and 94, in this other modified embodiment, the seat retaining mechanism 39 includes an intermediate piece 235, the intermediate piece 235 being located between the first receiving portion 231 and the second receiving portion 232. The seat retaining mechanism 39 also includes a second noose 2b and a third noose 2c. The second lasso 2b is fit over one location of the intermediate member 235 and the first pivot ring 1833 and the third lasso 2c is fit over the other location of the intermediate member 235 and the second pivot ring 382. The second lasso 2b and the third lasso 2c are generally parallel. In this variant embodiment, the first lasso 2a directly connected to the first pivot ring 1833 and the second pivot ring 382 is no longer provided. The second lasso 2b and the third lasso 2c may be, but are not limited to, wire ropes. It will be appreciated that the second 2b and third 2c nooses also improve the stress situation of the swing case 23.

Referring to fig. 95 and 96, in some embodiments, the intermediate member 235 may include a boss 2351 and a wheel 2352 that fits over the boss 2351. The boss 2351 extends from the swing case 23, and the wheel body 2352 is pivotally connected to the boss 2351. The second lasso 2b and the third lasso 2c are respectively sleeved at different positions on the wheel body 2352.

Referring to fig. 93 to 96, in some embodiments, the outer circumferential wall of the first pivot ring 1833 is provided with a third annular groove 1833b, the outer circumferential wall of the wheel body 2352 of the intermediate member 235 is provided with a fourth annular groove 23501 and a fifth annular groove 23502 which are axially spaced apart, and the outer circumferential wall of the second pivot ring 382 is provided with a sixth annular groove 382b. The second lasso 2b bypasses the third circumferential groove 1833b and the fourth circumferential groove 23501. The third lasso 2c bypasses the fifth ring groove 23502 and the sixth ring groove 382b. The provision of these ring grooves prevents the second lasso 2b and the third lasso 2c from moving in the axial direction.

Referring to fig. 93 and 95, in some embodiments, a third positioning mechanism 183b is disposed between the second lasso 2b and the first pivot ring 1833, the third positioning mechanism 183b being configured to limit relative movement of the top portion of the second lasso 2b with respect to the top portion of the first pivot ring 1833. In some embodiments, the third positioning mechanism 183b may be disposed at a top contact location of the second lasso 2b and the third circumferential groove 1833 b. In some embodiments, third positioning mechanism 183b includes, for example, a detent 18303 disposed in third annular groove 1833b, and a latch 203a disposed on second lasso 2b, latch 203a being snapped into detent 18303. Of course, the structure of the third positioning mechanism 183b is not limited thereto. In some alternative embodiments, the third positioning mechanism 183b includes, for example, a fastener that secures the top of the second lasso 2b with the top of the first pivot ring 1833.

Referring to fig. 93 and 95, in some embodiments, a fourth positioning mechanism 235a is provided between the second lasso 2b and the intermediate member 235, the fourth positioning mechanism 235a being configured to limit relative movement of the bottom portion of the second lasso 2b with respect to the bottom portion of the intermediate member 235. In some embodiments, a fourth detent mechanism 235a may be provided at a location where the second lasso 2b contacts the bottom of the fourth annular groove 23501, and in some embodiments, the fourth detent mechanism 235a includes, for example, a detent groove 2352a provided in the fourth annular groove 23501, and a detent block 204a provided on the second lasso 2b, the detent block 204a being snapped into the detent groove 2352 a. Of course, the structure of the fourth positioning mechanism 235a is not limited thereto. In some alternative embodiments, the fourth positioning mechanism 235a includes, for example, a fastener that secures the bottom of the second lasso 2b with the bottom of the intermediate member 235.

Referring to fig. 93 and 95, in some embodiments, a fifth positioning mechanism 235b is provided between the third lasso 2c and the intermediate member 235, the fifth positioning mechanism 235b being configured to limit relative movement of the top portion of the third lasso 2c with respect to the top portion of the intermediate member 235. In some embodiments, the fifth detent mechanism 235b may be disposed at a top contact location of the third lasso 2c and the fifth ring groove 23502, and in some embodiments, the fifth detent mechanism 235b includes, for example, a detent groove 2352b disposed in the fifth ring groove 23502 and a detent block 205a disposed on the third lasso 2c, the detent block 205a being snapped into the detent groove 2352 b. Of course, the structure of the fifth positioning mechanism 235b is not limited thereto. In some alternative embodiments, the fifth locating mechanism 235b includes, for example, a fastener that secures the top of the third lasso 2c with the top of the intermediate member 235.

Referring to fig. 93 and 95, in some embodiments, a sixth positioning mechanism 38b is disposed between the third lasso 2c and the second pivot ring 382, the sixth positioning mechanism 38b being configured to limit relative movement of the bottom portion of the third lasso 2c with respect to the bottom portion of the second pivot ring 382. In some embodiments, the sixth positioning mechanism 38b may be disposed at a location where the third lasso 2c contacts the bottom of the sixth ring groove 382b, and in some embodiments, the sixth positioning mechanism 38b includes, for example, a positioning groove 38202 disposed in the sixth ring groove 382b, and a latch 206a disposed on the third lasso 2c, the latch 206a being snapped into the positioning groove 38202. Of course, the structure of the sixth positioning mechanism 38b is not limited thereto. In some alternative embodiments, the sixth positioning mechanism 38b includes, for example, a fastener that secures the bottom of the third lasso 2c with the bottom of the second pivot ring 382.

Referring to fig. 97, the seat 3 is in a lower position in the swing. Referring to fig. 98, the seat 3 swings backward in the first direction T1 with respect to the main frame 1. Referring to fig. 99, the seat 3 swings forward in the first direction T2 with respect to the main frame 1. In this other modified embodiment, when the seat 3 swings back and forth relative to the main frame 1, the seat 3 rotates at an angle relative to the swing case 23 by the second lasso 2b, the intermediate member 235 and the third lasso 2c to compensate for the rotation of the swing case 23 relative to the main frame 1, thereby ensuring the level of the seat 3 during the swing.

Eighth embodiment

Fig. 100 and 108 schematically show the structure of a child carrier provided according to an eighth embodiment of the present utility model. The child carrier provided by this embodiment is a modification of the seventh embodiment described above. In the case of no conflict, the structure of the parts and the connection relationship between the parts in the present embodiment can be referred to the description in the seventh embodiment described above. The present embodiment is mainly different from the seventh embodiment described above in the connection structure of the seat 3 and the swing bracket assembly 2 with the main frame 1 and the implementation of the swing lock mechanism for locking the swing of the seat 3. The differences between the present embodiment and the seventh embodiment are mainly described below.

Referring to fig. 100 to 103, in the present embodiment, both the swing bracket assembly 2 and the slide pin 392 are mounted on the seat 3. Fig. 101 and 102 show an example structure of the detachable connection of the swing bracket assembly 2 to the main frame 1. The swing bracket assembly 2 is mounted with a first adaptor 107, the first adaptor 107 is pivotally connected to the swing bracket assembly 2, and the first adaptor 107 is detachably engaged with a first pivot portion 183 of the fourth mounting housing 18 of the main frame 1. The seat 3 can be detached from the main frame 1 together with the swing bracket assembly 2.

Referring to fig. 103-105, the swing bracket assembly 2 may include a swing housing 23, and the pivotal connection of the swing housing 23 to the seat 3 may be as described above in the first embodiment. In the present embodiment, the swing case 23 may be provided with the pivoting recess 10a, and the pivoting recess 10a and the second receiving portion 232 are located at different sides of the swing case 23. The first receiving portion 231 in the above-described embodiment may not be provided in the present embodiment. The first adaptor 107 has a circular table 1072, and the circular table 1072 is sleeved in the pivoting recess 10a and can rotate relatively. In some alternative embodiments, the locations of the boss 1072 and the pivot recess 10a on the first adapter 107 and the swing housing 23 may be interchanged. In some embodiments, the pivot recess 10a and the boss 1072 may be secured by a third axial stop mechanism 108, the third axial stop mechanism 108 being configured to limit axial movement of the pivot recess 10a and the boss 1072. In some embodiments, the third axial stop mechanism 108 is, for example, a bolt or rivet that may also serve as a pivot axis for both the swing housing 23 and the boss 1072. In the embodiment in which the seat 3 is detachable from the main frame 1 together with the swing bracket assembly 2, the swing case 23 is held on the seat 3 when the seat 3 is detached from the main frame 1, and the first adapter 107 is held on the swing case 23 by the third axial stopper mechanism 108, so that the first adapter 107 can be prevented from being lost.

Referring again to fig. 101, the seventh housing portion 181 of the fourth mounting housing 18 may include a first clamping recess 1a, the first clamping recess 1a serving as a first pivot 183. Referring to fig. 102, the first adapter 107 includes a first clamping table 1071, and the first clamping table 1071 is adapted to be inserted into the first clamping recess 1a in the top-down direction to achieve connection of the swing case 3 and the support frame 1. In some alternative embodiments, the positions of the first clamping recess 1a and the first clamping table 1071 on the fourth mounting housing 18 and the first adapter 107 may be interchanged.

Referring to fig. 101 and 102, in some embodiments, a first engagement mechanism 178 is disposed between the first clamping table 1071 and the first clamping recess 1a, the first engagement mechanism 178 being configured to prevent the first clamping table 1071 from easily escaping from the first clamping recess 1 a. The first engagement mechanism 178 includes, for example, a boss 1782 and a recess 1781 engaged with each other, and the boss 1782 and the recess 1781 are disposed on the first engagement base 1071 and the first engagement recess 1 a.

Referring to fig. 101 and 102, in some embodiments, the sliding pin 392 may be mounted on the second adapter 208, the second adapter 208 being detachably connected with the fourth mounting housing 18, thereby enabling the detachable connection of the sliding pin 392 with the main frame 1. More specifically, in some embodiments, the seventh housing portion 181 of the fourth mounting housing 18 may include the second snap recess 1b. The second adaptor 208 includes a second clamping stage 2081, and the second clamping stage 2081 is adapted to be inserted into the second clamping recess 1b. In some embodiments, the positions of the second snap recess 1b and the second snap land 2081 on the fourth mounting housing 18 and the second adapter 208 may be interchanged.

Referring to fig. 101 and 102, in some embodiments, a second engagement mechanism 278 may be disposed between the second clamping stage 2081 and the second clamping recess 1b, the second engagement mechanism 278 being configured to prevent the second clamping stage 2081 from easily backing out of the second clamping recess 1 b. The second engagement mechanism 278 includes, for example, a boss 2782 and a recess 2781 that are engaged with each other, and the boss 2782 and the recess 2781 are disposed on the second engagement stage 2081 and the second engagement recess 1 b.

Referring to fig. 103 and 108, in some embodiments, the sliding pin 392 may be a bolt, the tail end of which is coupled to the nut 3925 after passing through the second adapter 208 and the sliding slot 393. In other embodiments, the sliding pin 392 may also be an interference fit or otherwise fixedly coupled with the second adapter 208. In embodiments where the seat 3 is removable from the main frame 1 with the swing bracket assembly 2, the sliding pin 392 and the second adapter 208 remain coupled to the main frame 1 when the seat 3 is removed from the main frame 1, reducing the chance of loss of the sliding pin 392 and the second adapter 208. In some embodiments, the second adapter 208 further includes a protective sleeve 2082 connected to the second clamping table 2081, and the sliding pin 392 is disposed through the protective sleeve 2082. The end of the protective sleeve 2082 away from the second clamping table 2081 abuts against the seat 3, so that the portion of the sliding pin 392 extending from the protective sleeve 2082 can be closely inserted into the sliding groove 393, which is beneficial to improving the structural strength of the sliding pin 392.

Referring to fig. 103, in the present embodiment, the lock hole 30 on the seat 3 is located outside the slide groove 393, and the swing of the seat 3 is locked by the lock pin 62 of the first swing lock mechanism 6, instead of being controlled by controlling the axial expansion and contraction of the slide pin 392.

In some embodiments, the first swing lock mechanism 6 may be similar in structure to the fifth swing lock mechanism 6a exemplified in the foregoing first embodiment, and the first swing lock mechanism 6 is mounted on the fourth mounting case 18 and locks or releases the swing of the seat 3 by controlling the axial extension and retraction of the lock pin 62.

Fig. 103 to 107 show a further embodiment of the first pendulum locking mechanism 6, which first pendulum locking mechanism 6 is mounted, for example, on the pendulum housing 23 of the pendulum suspension assembly 2. Specifically, the first swing lock mechanism 6 includes a first release 61, a lock pin 62, and a first elastic member 63. The lock pin 62 expands and contracts in a direction parallel to the swing axis of the seat 3 (the axis of swing of the seat 3 with respect to the main frame 1). The first elastic member 63 applies an elastic force to the locking pin 62, forcing the locking pin 62 to protrude to be inserted into the locking hole 30. The first release 61 is operatively connected to the locking pin 62 to urge the locking pin 62 out of the locking hole 30. Wherein, the moving direction of the first releasing member 61 is perpendicular to the extending and contracting direction of the lock pin 62.

Referring to fig. 103-106, in some embodiments, the first lock release 61 has a first connection hole 6101 and the lock pin 62 has a first post 6201. The first connecting hole 6101 has a first inclined wall 61011, and the first column 6201 extends into the first connecting hole 6101. The first lock release 61 has a lock release position and a lock position, and movement of the first lock release 61 between the lock release position and the lock position controls the expansion and contraction of the lock pin 62. When the first release 61 is in the locked position shown in fig. 106, the locking pin 62 protrudes outward to be able to be inserted into the locking hole 30. When the first lock release member 61 moves from the locking position to the unlocking position in the arrow direction shown in fig. 106, the first inclined wall 61011 abuts against the first column 6201, and the first column 6201 is supported by the first inclined wall 61011 to retract the lock pin 62 to withdraw from the lock hole 30, so that the seat 3 can swing back and forth relative to the main frame 1. In some alternative embodiments, the positions of the first connection hole 6101 and the first post 6201 on the first release 61 and the lock pin 62 may be interchanged.

Referring to fig. 104 and 105, the swing case 23 is provided with a first slide 2305 slidably engaged with the first release 61 and a second slide 2306 slidably engaged with the lock pin 62. The first 2305 and second 2306 are perpendicular to each other. The wall body of the second slideway 2306 may be provided with an inclined guide wall 23061, and the first column 6201 is guided into the first connection aperture 6101 via the inclined guide wall 23061.

Referring to fig. 106, in some embodiments, one end of the first inclined wall 61011 may have a first stop 61012, where the first stop 61012 is configured to engage the first post 6201 to hold the first lock release 61 in the release position, thereby holding the lock pin 62 in a state withdrawn from the lock hole 30.

Referring to fig. 107, in some embodiments, the first resilient element 63 may be a spring that is sandwiched between the swing housing 23 and the latch 62. The first release lock 61 is provided with a relief hole 6102 through which the first elastic member 63 passes. It will be appreciated that when the first lock release member 61 is moved from the lock release position to the lock position, once the first column 6201 is disengaged from the first limit 61012 (see fig. 106), the lock pin 62 automatically protrudes to be inserted into the lock hole 30 by the driving of the first elastic member 63. When the lock pin 62 is inserted into the lock hole 30, the swing case 2 and the seat 3 cannot be rotated relatively, so that the seat 3 cannot be swung with respect to the main frame 1, and the swing of the seat 3 is locked.

While in the embodiment shown in fig. 102-107, the first swing lock mechanism 6 is illustrated as being mounted on the swing housing 23 of the swing bracket assembly 2, it will be appreciated that in some alternative embodiments, the first swing lock mechanism 6 may be mounted on the fourth mounting housing 18 of the main frame 1, for example.

Ninth embodiment

Fig. 109 and 117 schematically show the structure of a child carrier provided according to a ninth embodiment of the present utility model. The child carrier provided in this embodiment is a modification of the eighth embodiment described above. In the case of no conflict, the structure of the parts and the connection relationship between the parts in the present embodiment can be referred to the description in the eighth embodiment described above. The present embodiment mainly differs from the eighth embodiment described above in the implementation of the first swing lock mechanism 6. The differences between the present embodiment and the eighth embodiment described above will be mainly described below.

Referring to fig. 111 and 112, the first swing lock mechanism 6 includes a first release 61, a lock pin 62, a first elastic member 63, and a mounting post 64. In the present embodiment, the first swing lock mechanism 6 is described by taking the case of being attached to the swing case 23 as an example. In some alternative embodiments, the first swing lock 6 may be mounted on the fourth mounting housing 18 of the main frame 1.

Referring to fig. 111, 112 and 114, the lock pin 62 is fitted to the mounting post 64 and is retractable in a direction parallel to the swing axis of the seat 3, that is, the axis of swing of the seat 3 with respect to the main frame 1. The first elastic member 63 applies an elastic force to the locking pin 62, forcing the locking pin 62 to protrude to be inserted into the locking hole 30. The first release member 61 is operatively connected to the latch 62, and the direction of movement of the first release member 61 is perpendicular to the direction of extension and retraction of the latch 62. Referring to fig. 113, in some embodiments, the swing housing 23 is provided with a groove structure 23071 for guiding movement of the first release 61, and the swing housing 23 may also have an opening 23072 through which the first dial 613 of the first release 61 protrudes.

Referring to fig. 111-114, in some embodiments, the locking pin 62 may be nested outside of the mounting post 64. When the lock pin 62 in the locked position is pushed by the first lock release 61, the lock pin 62 moves axially while rotating about the mounting post 64, so that the lock pin 62 is withdrawn from the lock hole 30. For example, the outer peripheral wall of the mounting post 64 may have a second connection hole 6401, the second connection hole 6401 having a second sloped wall 64011. The inner peripheral wall of the locking pin 62 may be provided with a second post 6202, the second post 6202 extending into the second connection hole 6401 such that the locking pin 62 remains connected to the mounting post 64. In some embodiments, the latch 62 has, for example, a resilient arm 6222, and the second post 6202 is located on the resilient arm 6222.

The first release member 61 has a release position and a lock position, and movement of the first release member 61 between the release position and the lock position controls the retraction of the locking pin 62 relative to the mounting post 64. When the first release 61 is in the locked position shown in fig. 117, the lock pin 62 is inserted into the lock hole 30, and the seat 3 is not swingable back and forth. When the first lock release member 61 moves from the locking position to the unlocking position in the direction indicated by the arrow in fig. 117, the first lock release member 61 drives the lock pin 62 to rotate relative to the mounting post 64, and at the same time, the second inclined wall 64011 abuts against the second post 6202, the second post 6202 is pushed by the second inclined wall 64011 to drive the lock pin 62 to move axially and withdraw from the lock hole 30, and the seat 3 can swing back and forth relative to the main frame 1. In some alternative embodiments, the positions of the second connecting hole 6401 and the second post 6202 on the mounting post 64 and the locking pin 62 may be interchanged.

Referring to fig. 113, in some embodiments, one end of the second sloped wall 64011 has a second stop 64012, and the second stop 64012 is configured to engage with the second post 6202 to retain the first release member 61 in the release position, thereby retaining the locking pin 62 in a state of being withdrawn from the locking hole 30. The first resilient member 63 may be a spring that is sandwiched between the mounting post 64 and the locking pin 62. It will be appreciated that when the first lock release 61 is moved from the lock release position to the lock position in the direction indicated by the arrow in fig. 115, the lock pin 62 automatically protrudes by the first elastic member 63 to be able to be inserted into the lock hole 30 once the second post 6202 leaves the second stopper 64012. When the lock pin 62 is inserted into the lock hole 30, the swing case 2 and the seat 3 cannot be rotated relatively, so that the seat 3 cannot be swung with respect to the main frame 1, and the swing of the seat 3 is locked.

Referring to fig. 111 and 112, in some embodiments, first release member 61 is coupled to latch 62 via a slider-crank mechanism 605. The crank block mechanism 605 may include a slip fit cylinder 6051 and an elongated slot 6052. The post 6051 is provided, for example, on the ledge 625 of the latch 62 and the elongated slot 6052 is provided, for example, on the extension plate 615 of the first release member 61. The slider-crank mechanism 605 converts the movement of the first release 61 into rotation of the lock pin 62. In alternative embodiments, the positions of the post 6051 and the elongated slot 6052 on the latch 62 and the first release 61 may be interchanged.

Referring to fig. 111, 113 and 116, a seventh positioning mechanism 635 is provided between the swing case 23 and the first release member 61, and the seventh positioning mechanism 635 is used to hold the first release member 61 in the release position or the lock position. In some embodiments, the seventh positioning mechanism 635 may include two ribs 6351 and 6353 provided on the first release 61, and two snap points 6352 and 6354 provided on the swing housing 23. Two rib plates 6351 and 6353 may extend from the extension plate 615 and are spaced apart in the moving direction of the first release 61. Referring to fig. 116, when the first lock release member 61 moves to the lock release position, the rib 6351 passes over the locking point 6352 and then is locked with the locking point 6352, thereby maintaining the first lock release member 61 in the lock release position. Similarly, when the first lock release member 61 moves to the locking position, the rib 6353 passes over the locking point 6354 and then is locked with the locking point 6354, thereby holding the first lock release member 61 in the locking position. Of course, the embodiment of the seventh positioning mechanism 635 is not limited to the above example.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A child carrier, comprising:

A main frame adapted to be supported by a floor;

The swing bracket assembly comprises a swing arm which is pivotally connected with the main frame;

the seat is pivotally connected with the main frame through the swing bracket assembly; and

And the swing limiting mechanism is arranged between the swing arm and the main frame.

2. The child carrier of claim 1, wherein the carrier comprises a plurality of support members,

The swing arm is provided with a pivot, and the swing arm is pivotally connected with the main frame through the pivot;

The swing limiting mechanism comprises: the fixing piece is fixed on the main frame and is provided with a first limiting surface and a second limiting surface;

The abutting piece is connected with the pivot and located between the first limiting surface and the second limiting surface, and the abutting piece is used for limiting the swing of the swing arm through abutting of the abutting piece with the first limiting surface and the second limiting surface.

3. The child carrier of claim 2, wherein the carrier is configured to support the child,

The fixing piece is provided with a limit groove;

4. A child carrier according to claim 3, wherein the stop member has an aperture through which the pivot shaft passes, the first stop surface and the second stop surface being formed on walls of the aperture.

5. The child carrier according to claim 3, wherein the carrier comprises,

The side wall of the limit groove comprises a first side wall and a second side wall which are parallel to each other, and the first limit surface and the second limit surface are formed on the first side wall and the second side wall;

the abutting piece is inserted into the limiting groove and comprises a first pair of parallel surfaces and a second pair of parallel surfaces;

6. The child carrier according to claim 3, wherein the carrier comprises,

The main frame is provided with a support tube, the fixing piece is sleeved in the support tube, the limiting groove longitudinally extends along the fixing piece and is provided with a notch, and the abutting piece is inserted into the limiting groove through the notch;

7. The child carrier of claim 6, wherein the carrier is configured to support the child,

The pivot is sleeved with a first shaft sleeve, and the first shaft sleeve is positioned at one side of the limit groove and is arranged in the second through hole;

And/or the number of the groups of groups,

The end part of the pivot is provided with a first flat head part, the abutting piece is provided with a first flat hole for being jointed with the first flat head part, the first flat head part is provided with a first limit structure, and the first limit structure is used for limiting the abutting piece to be separated from the first flat head part.

8. The child carrier of claim 7, wherein the carrier is configured to support the child,

The root of the first flat head is provided with a first step, and the first flat head is provided with a first positioning concave part;

The first limiting structure comprises a spring clamp and a first positioning sleeve, wherein the spring clamp and the first positioning sleeve are positioned on the other side of the limiting groove, the first positioning sleeve is sleeved on the first flat head part and is provided with a radial through groove for accommodating the spring clamp, and the spring clamp is arranged in the radial through groove in a penetrating manner and is engaged with the first positioning concave part, so that the abutting piece is clamped between the first step and the first positioning sleeve.

9. The child carrier of claim 8, wherein the carrier is configured to support the child,

The first positioning sleeve is provided with a second flat hole which is used for being jointed with the first flat head part;

and the end surfaces of the abutting piece and the first positioning sleeve, which are opposite to each other, are provided with positioning holes and positioning convex columns which are engaged with each other.

10. The child carrier of claim 8, wherein the carrier is configured to support the child,

The pivot and the swing arm are integrally formed;

And/or the first positioning sleeve is arranged in the second through hole;

And/or the periphery of the first shaft sleeve and the hole wall of the second through hole are provided with an axial guide rib and an axial guide groove which are connected.

11. The child carrier of claim 1, further comprising a first swing lock mechanism for locking the swing of the seat.

12. The child carrier of claim 11, wherein the first swing lock mechanism comprises a first release, a lock pin, and a first resilient element; the first elastic element applies elastic force to the lock pin to force the lock pin to extend out so as to be inserted into a lock hole on the seat; the first release member is operatively connected to the locking pin to urge the locking pin out of the locking hole.

13. The child carrier of claim 12, wherein the carrier is configured to support the child,

The middle part of the lock pin is provided with a first annular flange which divides the lock pin into a first part and a second part, the first part is used for being inserted into the lock hole, and the first elastic element is sleeved on the second part;

the first lock release piece is provided with a lock release position and a locking position, the first lock release piece is provided with a first long hole, and a first stop table extending obliquely is formed on the wall of the first long hole;

14. The child carrier of claim 13, wherein the carrier is configured to support the child,

The main frame further comprises a first mounting housing;

The first swing locking mechanism is arranged in the first installation shell, the first installation shell is provided with a third through hole, and the lock pin is arranged in the third through hole in a penetrating manner;

the first lock release member moves relative to the first mounting housing to switch to the lock release position or the lock position, the first lock release member has a first shifting block, and the first mounting housing is provided with a first opening for the first shifting block to move.

15. The child carrier of claim 12, wherein the carrier is configured to support the child,

The first swing locking mechanism is mounted on the main frame or the swing bracket assembly;

16. The child carrier of claim 15, wherein the carrier is configured to support the child,

One of the first release member and the locking pin has a first connecting hole, and the other has a first cylinder; the first connecting hole is provided with a first inclined wall, and the first column body stretches into the first connecting hole;

17. The child carrier of claim 16, wherein one end of the first sloped wall has a first stop for engaging the first post to retain the first release member in the release position.

18. The child carrier of claim 16, wherein the swing bracket assembly includes a swing housing, the first swing lock mechanism being mounted on the swing housing, the swing housing having a first slide in sliding engagement with the first release lock and a second slide in sliding engagement with the lock pin.

19. The child carrier of claim 18, wherein the carrier is configured to support the child,

The first connecting hole is arranged on the first lock release piece, and the first cylinder is arranged on the lock pin; the wall body of the second slideway is provided with an inclined guide wall, and the first column body is guided into the first connecting hole through the inclined guide wall.

20. The child carrier of claim 15, wherein the carrier is configured to support the child,

The first swing locking mechanism further comprises a mounting column, and the lock pin is sleeved with the mounting column and can rotate relatively to the mounting column;

One of the mounting post and the locking pin has a second connecting hole, the other has a second post, the second connecting hole has a second inclined wall, and the second post extends into the second connecting hole;

21. The child carrier of claim 20, wherein one end of the second sloped wall has a second stop for engaging the second post to retain the first release member in the release position.

22. The child carrier of claim 20, wherein the swing bracket assembly includes a swing housing, the first swing lock mechanism is mounted on the swing housing, and the first release lock is coupled to the lock pin via a slider-crank mechanism.

23. The child carrier of claim 22, wherein a seventh positioning mechanism is provided between the swing housing and the first release member, the seventh positioning mechanism being for retaining the first release member in the release position or the locking position.

24. The child carrier of claim 4, wherein the carrier is configured to support the child,

The opening comprises a first hole part, the first hole part comprises a first wall and a second wall, and the first limit surface and the second limit surface are formed on the first wall and the second wall;

25. The child carrier of claim 24, wherein the carrier is configured to support the child,

The opening further includes a second aperture portion in communication with the first aperture portion;

26. The child carrier of claim 25, wherein the first aperture portion is formed by two sub-fan apertures joined together to form two limiting portions, the second flat head portion having a portion sandwiched between the two limiting portions when the second flat head portion is joined to the second aperture portion.

27. The child carrier of claim 25, wherein the carrier is configured to support the child,

The limiting groove is provided with a notch and a groove bottom;

One of the second hole part and the first hole part is close to the bottom of the limit groove, and the other is close to the notch of the limit groove;

A second elastic element is arranged in the limiting groove, and is clamped between the groove bottom and the limiting piece;

When a pressing force is applied to the limiting piece, the limiting piece overcomes the elastic force of the second elastic element and moves towards the groove bottom, and when the pressing force is released, the second elastic element drives the limiting piece to move towards the notch so that the first hole part and the second hole part are selectively matched with the second flat head part.

28. The child carrier of claim 27, wherein the carrier is configured to support the child,

The main frame is provided with a supporting tube, the fixing piece is sleeved in the supporting tube, the limiting groove extends along the longitudinal direction of the fixing piece and is provided with a notch, and the limiting piece is inserted into the limiting groove through the notch;

29. The child carrier of claim 28, wherein the carrier is configured to support the child,

The pivot is sleeved with a second sleeve, and the second sleeve is positioned on one side of the limiting groove and penetrates through the second through hole;

And/or the number of the groups of groups,

30. The child carrier of claim 29, wherein the carrier is configured to support the child,

The pivot is provided with a central hole, a second step is formed at the root of the second flat head, and a third step is formed at the root of the flat head connecting part;

the second limiting structure comprises a bolt and a nut; the tail part of the bolt penetrates into the central hole from the second end of the pivot, penetrates out of the central hole from the first end of the pivot and is in threaded connection with the nut, and the nut is positioned on the other side of the limiting groove and in the second through hole;

31. The child carrier of claim 30, wherein the pivot further comprises a prismatic post extending from an end face of the second flat head, the nut being provided with a second detent recess engaging the prismatic post.

32. The child carrier of any one of claims 27 to 31, further comprising a second swing lock mechanism operatively connected to the stop.

33. The child carrier of claim 32, wherein the carrier is configured to support the child,

A clamping part is arranged at the top of the limiting piece, which is close to the notch;

The second swing locking mechanism comprises a second lock release piece and a clamping piece; the clamping piece is sleeved on a rotating shaft parallel to the pivot, and a clamping bulge and an avoiding part are arranged on the periphery of the clamping piece; the second lock release piece is used for driving the clamping piece to rotate;

34. The child carrier of claim 33, wherein the second swing lock mechanism further comprises a first linkage member coupled between the engagement member and the second release member, the second release member driving the engagement member to rotate via the first linkage member.

35. The child carrier of claim 34, wherein the carrier is configured to support the child,

The first linkage piece is arc-shaped, one of the first end of the first linkage piece and the second release lock piece is provided with a first connecting pin, and the other is provided with a second long hole in sliding fit with the first connecting pin;

36. The child carrier of claim 33, wherein the carrier is configured to support the child,

The main frame further comprises a second installation shell, and the second swing locking mechanism and the rotating shaft are installed in the second installation shell;

The second lock release piece is provided with a second shifting block, and the second mounting shell is provided with a third opening for the second shifting block to move;

37. A child carrier according to claim 3, wherein the limit slot extends in a direction parallel to an axial direction of the pivot shaft, the pivot shaft being disposed in the limit slot.

38. The child carrier of claim 37, wherein the carrier is configured to support the child,

The stop comprises a first zone having the first stop surface and the second stop surface and a second zone adapted to engage the abutment to lock the swing arm;

39. The child carrier of claim 38, wherein the stop includes a force plate and at least one arm extending from the force plate, the first and second regions being formed on the at least one arm.

40. The child carrier of claim 39, wherein the carrier is configured to support the child,

The abutting piece is provided with at least one first groove part, and each first groove part comprises a first end wall and a second end wall which are opposite to each other;

41. The child carrier of claim 40, wherein the abutment is further provided with at least one second slot adapted to engage with the corresponding second zone.

42. The child carrier according to claim 41, wherein the carrier comprises,

The at least one second groove part is arranged at the groove bottom of the at least one first groove part;

The second region of the at least one arm is provided with a first latch adapted to engage with a corresponding second slot.

43. The child carrier according to claim 41, wherein the carrier comprises,

The at least one first slot portion and the at least one second slot portion are coincident with each other;

The second region of the at least one arm is provided with a second latch adapted to engage the corresponding first slot.

44. The child carrier of claim 39, wherein the carrier is configured to support the child,

The limiting groove is provided with a notch and a groove bottom, the stress plate is close to the groove bottom, and the abutting piece is close to the notch;

a third elastic element is arranged in the limiting groove and is used for applying a driving force for enabling the stress plate to move towards the groove bottom to the stress plate;

45. The child carrier according to claim 44, wherein the carrier comprises,

The third swing locking mechanism comprises a driving wheel which is sleeved on the pivot and is abutted against one side of the stress plate facing the groove bottom;

46. The child carrier according to claim 45, wherein the carrier comprises,

The bottom of the limit groove is provided with a mounting hole;

47. The child carrier of claim 46, wherein the carrier is configured to receive the first signal,

The third swing locking mechanism further comprises a return spring, wherein the return spring is used for resetting the pressing piece;

and/or the pushing part comprises at least one pushing arm extending from the pressing part, a pushing step is arranged in the middle of the at least one pushing arm, a hook part is arranged at the tail end of the at least one pushing arm, the driving wheel is positioned between the pushing step and the hook part, the pushing step is used for applying the pressing force, and the hook part is used for hooking the driving wheel after the pressing force is withdrawn.

48. The child carrier of claim 45, wherein the ratchet portion is disposed on a wall of the limit slot and the ratchet slot portion is disposed on the drive wheel.

49. The child carrier of claim 37, wherein the wall of the restraining slot is provided with a first axial guide for guiding axial movement of the restraining member.

50. The child carrier of claim 37, wherein the main frame is provided with a support tube having a first through hole with an axis perpendicular to an axis of the support tube; the fixing piece is sleeved in the first through hole, and the hole wall of the first through hole is provided with a second axial guide part which is used for guiding the axial movement of the fixing piece during installation.

51. The child carrier of claim 1 or 37, wherein the swing bracket assembly further comprises an auxiliary swing arm for assisting the swing arm in supporting the seat.

52. The child carrier of claim 51, wherein the swing bracket assembly further comprises a connector, the swing arm and the auxiliary swing arm being pivotally connected to the connector, the connector being provided with a snap-fit portion for engagement with the seat.

53. The child carrier of claim 37, wherein the carrier is configured to support the child,

The main frame further comprises a third installation shell, and the fixing piece is positioned in the third installation shell;

The outside of third installation casing is formed with spacing concave part, spacing concave part has first spacing wall and second spacing wall, the swing arm swing between first spacing wall and the second spacing wall.

54. The child carrier of claim 1, wherein the carrier comprises a plurality of support members,

The swing bracket assembly is pivotally connected with the main frame; the seat is pivotally connected with the swing bracket assembly; the seat swings relative to the main frame by means of the swing bracket assembly;

55. The child carrier of claim 54, wherein the carrier is configured to receive the first signal,

The main frame is provided with a first pivoting part, the seat is provided with a second pivoting part, and the first pivoting part and the second pivoting part are respectively and pivotally connected with the swing bracket assembly;

56. The child carrier of claim 55, wherein the swing bracket assembly includes a swing housing, the first pivot and the second pivot each being pivotally connected to the swing housing.

57. The child carrier of claim 56, wherein the seat retaining mechanism is mounted on the swing bracket assembly and is connected between the first pivot and the second pivot.

58. The child carrier of claim 57, wherein the first pivot includes a first tooth and the second pivot includes a second tooth; the seat retaining mechanism includes a gear train, and the first tooth portion and the second tooth portion are respectively engaged with the gear train.

59. The child carrier according to claim 56, wherein,

The main frame comprises a fourth installation shell, and the swinging shell is provided with a first accommodating part;

60. The child carrier of claim 59, wherein the first pivot ring has a first tooth formed on at least a portion of an outer peripheral wall thereof, the second pivot ring including a second tooth, the first tooth being in meshing engagement with the second tooth via a gear train.

61. The child carrier according to claim 56, wherein,

The swinging shell is provided with a first accommodating part, and the first pivoting part comprises a first pivoting ring sleeved in the first accommodating part;

62. The child carrier of claim 61, wherein the first axial stop mechanism includes a stop step and an elastic clip disposed on a wall of the first receiving portion, the first pivot ring being sandwiched between the stop step and the elastic clip.

63. The child carrier of claim 62, wherein the outer peripheral wall of the first pivot ring is provided with a first guide groove, the resilient clip being in sliding engagement with the first guide groove during installation of the first pivot ring with the swing housing; the groove depth and/or the width of the first guide groove gradually become larger along the installation direction of the first pivot ring.

64. The child carrier of claim 56, further comprising a first swing limit mechanism for limiting a swing angle of the swing housing relative to the main frame.

65. The child carrier of claim 64, wherein the carrier is configured to support the child,

66. The child carrier of claim 59, wherein the carrier is configured to,

The mounting part is in a convex column shape, and a convex rib and a second guide groove which are matched with each other in a concave-convex way are arranged between the mounting part and the first pivot ring;

And/or the number of the groups of groups,

67. The child carrier according to claim 56, wherein,

The swing shell is provided with a second accommodating part;

68. The child carrier of claim 67, wherein the second pivot ring has a second tooth formed on at least a portion of an outer peripheral wall thereof, the first pivot including a first tooth, the second tooth being in meshing engagement with the first tooth via a gear train.

69. The child carrier of claim 67, further comprising a second axial stop mechanism for limiting axial movement of the swing housing relative to the second pivot ring.

70. The child carrier of claim 69, wherein the second axial stop mechanism includes a second resilient arm in the second receptacle, the second resilient arm being snap-fit with an edge of the inner bore after passing through the inner bore of the second pivot ring.

71. The child carrier of claim 56, further comprising a second swing limit mechanism for limiting a swing angle of the seat relative to the swing housing.

72. The child carrier of claim 71, wherein the carrier is configured to receive the first signal,

The swinging shell is provided with a second accommodating part, and the second pivoting part comprises a second pivoting ring sleeved in the second accommodating part;

73. The child carrier of claim 56, further comprising a fourth swing lock mechanism for locking or unlocking the swing of the seat.

74. The child carrier of claim 73, wherein the carrier is configured to receive the first signal,

The first pivoting part comprises a first tooth part, and the second pivoting part comprises a second tooth part; the seat retaining mechanism comprises a gear drive train, and the first tooth part and the second tooth part are respectively meshed and matched with the gear drive train;

The gear transmission system comprises a transmission gear, and a limit groove is formed in the transmission gear;

75. The child carrier of claim 74, wherein the fourth swing lock further comprises a drive member on which the lock block is mounted, the fourth release lock driving the lock block via the drive member.

76. The child carrier of claim 75, wherein the fourth release lock is in sliding engagement with the swing housing, the drive member is in sliding engagement with the swing housing, and the sliding directions of the fourth release lock and the drive member intersect.

77. The child carrier of claim 75, wherein the carrier is configured to receive a vehicle body,

The driving piece is provided with a third connecting hole, and the third connecting hole is provided with a third inclined wall;

The swing shell is provided with a seventh long hole, the fourth lock release piece is provided with an operation part and a third column body extending from the operation part, and the third column body enters the third connecting hole through the seventh long hole;

78. The child carrier of claim 77, it is characterized in that the method comprises the steps of,

One end of the third inclined wall is provided with a third limiting part, and the third limiting part is used for being clamped with the third column body so as to keep the fourth lock release piece at the lock release position;

And/or the hole wall of the seventh long hole is provided with an elastic claw, and when the fourth lock release piece moves to the locking position, the elastic claw clamps the third cylinder so as to keep the fourth lock release piece at the locking position.

79. The child carrier of claim 75, wherein the carrier is configured to receive a vehicle body,

The driving member includes a first side portion and a second side portion disposed opposite to each other, and a third side portion connected between the first side portion and the second side portion;

80. The child carrier of claim 74, wherein the fourth swing lock further comprises a fourth resilient element for driving the lock block into the limit slot.

81. The child carrier of claim 74, wherein the drive gear includes a third tooth portion engaged with the first tooth portion and a fourth tooth portion engaged with the second tooth portion, the limit slot being located between the third tooth portion and the fourth tooth portion.

82. The child carrier according to claim 56, wherein,

The first pivoting part comprises a first pivoting ring arranged in the swinging shell, and the second pivoting part comprises a second pivoting ring arranged in the swinging shell;

83. The child carrier of claim 82, wherein the carrier is configured to support the child,

The outer peripheral wall of the first pivot ring is provided with a first annular groove, the first lasso bypasses the first annular groove, and a first positioning mechanism is arranged between the first lasso and the first pivot ring;

84. The child carrier according to claim 56, wherein,

The seat holding mechanism comprises a middle piece arranged on the swing shell, the first pivoting part comprises a first pivoting ring arranged in the swing shell, and the second pivoting part comprises a second pivoting ring arranged in the swing shell;

85. The child carrier of claim 84, wherein the carrier is configured to support the child,

The outer peripheral wall of the first pivot joint ring is provided with a third annular groove, the outer peripheral wall of the middle piece is provided with a fourth annular groove and a fifth annular groove which are axially arranged at intervals, and the outer peripheral wall of the second pivot joint ring is provided with a sixth annular groove;

86. The child carrier of claim 85, wherein the carrier further comprises a base,

A third positioning mechanism is arranged between the second lasso and the first pivot ring, and a fourth positioning mechanism is arranged between the second lasso and the middle piece;

A sixth positioning mechanism is arranged between the third lasso and the sixth annular groove;

a fifth positioning mechanism is arranged between the third lasso and the fifth ring groove.

87. The child carrier of claim 54, wherein the seat retaining mechanism comprises:

a slide pin provided on one of the main frame and the seat;

A sliding groove provided on the other of the main frame and the seat;

88. The child carrier of claim 87, wherein the slide pin is parallel to the swing axis of the seat and/or the slide slot is an arcuate slot.

89. The child carrier of claim 87, wherein the carrier is configured to support the child,

A lock hole is arranged in the sliding groove;

90. The child carrier of claim 89, further comprising a fifth swing lock mechanism for controlling the extension and retraction of the slide pin to lock or unlock the swing of the seat.

91. The child carrier of claim 90, wherein the fifth swing lock mechanism includes a fifth release for driving the slide pin out of the lock aperture and a fifth resilient element for driving the slide pin into the lock aperture.

92. The child carrier of claim 91, wherein,

The middle part of the sliding pin is provided with a second annular flange which divides the sliding pin into a first part and a second part, the first part is used for being inserted into the lock hole, and the fifth elastic element is sleeved on the second part;

93. The child carrier of claim 92, wherein a wall of the eighth elongate aperture is provided with a catch for cooperating with the slide pin to retain the fifth release in the release position.

94. The child carrier of claim 54, wherein the carrier is configured to receive the first signal,

The main frame includes a fourth mounting housing;

The swing support assembly is provided with a first adapter, and is in pivot connection with the first adapter;

The first adapter is clamped with the fourth installation shell.

95. The child carrier of claim 94, wherein the carrier is configured to,

The fourth mounting shell comprises a first clamping concave part;

96. The child carrier of claim 54, wherein the carrier is configured to receive the first signal,

The main frame includes a fourth mounting housing;

The seat retaining mechanism comprises a sliding pin and a sliding groove, the sliding pin is installed on a second adapter, the second adapter is clamped with the fourth installation shell, the sliding groove is formed in the seat, and the sliding pin is arranged in the sliding groove in a penetrating mode;

97. The child carrier of claim 96, wherein the carrier is configured to receive the first signal,

The fourth mounting shell comprises a second clamping concave part;

98. The child carrier of claim 96, wherein the sliding pin is a bolt, and wherein a tail end of the bolt is coupled to a nut after passing through the second adapter and the sliding slot.