CN212797044U

CN212797044U - Folding joint and foldable baby carriage frame

Info

Publication number: CN212797044U
Application number: CN202020999164.0U
Authority: CN
Inventors: 孔德顺; 孔刚
Original assignee: Tengzhou Meihualong Children's Bicycles Co ltd
Current assignee: Tengzhou Meihualong Children's Bicycles Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2021-03-26
Anticipated expiration: 2030-06-04

Abstract

The utility model provides a receive and close joint and foldable baby carriage frame, receive and close the joint and include: the upper joint and the lower joint are rotatably connected with each other and both have an unfolding position and a folding position; the locking piece A is linked with the first connecting part; the second connecting part is arranged on the lower joint, and the locking piece B is linked with the first connecting part; the locking piece A and the locking piece B are relatively close to or far away from each other along with the relative rotation of the upper joint and the lower joint, and when the first connecting portion and the second connecting portion are both located at the unfolding positions, the locking piece A and the locking piece B are relatively close to each other and can be locked together. After the unlocking, the first connecting part and the second connecting part rotate relatively under the action of gravity to reach the folding position, and the push rod assembly, the supporting leg folding joint, the front leg and the rear leg are driven to enter the folding position, so that the folding device is convenient and fast to use and convenient to operate.

Description

Folding joint and foldable baby carriage frame

Technical Field

The utility model relates to a baby's shallow field especially relates to a joint and foldable baby carriage frame are closed to receipts.

Background

The existing baby stroller is generally of a foldable design, so that the space is saved and the carrying is convenient. However, the folding mechanism of the existing baby stroller is unreasonable in design, so that the folding and folding operation is very complicated, time and labor are wasted, and the folding and folding by one hand cannot be realized;

in addition, the existing baby stroller occupies a large space, is inconvenient to use in crowded places such as hospitals and buses, belongs to a high-integration industrial product of parts, is easy to fold and unfold smoothly due to simple equal-scale reduction, needs to be locked by a locking device after being unfolded, has a large pedestrian flow, and has the advantages of obviously increasing the frequency and frequency of impacting the baby stroller due to crowd shoulder and crowding, along with higher requirements on a locking mechanism of the baby stroller, and is also one of the tests on the existing baby stroller.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a receive and close joint and foldable baby carriage frame reduces baby's shallow occupation space, and convenient folding promotes the security performance.

According to the utility model discloses an aspect provides a joint is closed to receipts, include:

the upper joint and the lower joint are rotatably connected with each other and both have an unfolding position and a folding position;

the locking piece A is linked with the first connecting part;

the second connecting part is arranged on the lower joint, and the locking piece B is linked with the first connecting part;

the locking piece A and the locking piece B are relatively close to or far away from each other along with the relative rotation of the upper joint and the lower joint, and when the first connecting portion and the second connecting portion are both located at the unfolding positions, the locking piece A and the locking piece B are relatively close to each other and can be locked together.

Compared with the prior art, the utility model discloses following beneficial effect has: locking piece A, locking piece B are close to relatively or keep away from along with last joint, lower joint's relative rotation, and work as first connecting portion, second connecting portion all are in when expanding the position, locking piece A, locking piece B are close to relatively to the lockable is together, can make first connecting portion, second connecting portion expand the position simultaneously, only need unblock locking piece A, locking piece B when needs receipts are closed, convenient operation.

Preferably, after the locking piece a and the locking piece B are unlocked, the first connecting part and the second connecting part can rotate through the upper joint and the lower joint and move to the folding position at the same time, and the locking piece a and the locking piece B are driven to be relatively far away.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, joint, lower joint rotation move to the receipts simultaneously to receive the position in first connecting portion, second connecting portion accessible, drive locking piece A, locking piece B are kept away from relatively and are received the space for last joint, lower joint creation, avoid locking piece A or locking piece B to bring the hindrance to the receipts of joint, are favorable to receiving the joint and receive and reach stable state fast.

Preferably, the upper joint is provided with a first stop part;

the lower joint is provided with a second stop part;

when the first stop part contacts with the second stop part, the first connecting part and the second connecting part move to the folding position.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, when first position stopper portion and second position stopper portion contacted, first connecting portion, second connecting portion all removed to receipts and close the position, can design the contact surface of first position stopper portion, second position stopper portion for the contained angle of upper joint, lower joint receipts back two is controllable, avoids upper joint, lower joint to extrude each other.

Preferably, the device also comprises a movable joint;

the lower joint is positioned on one side of the upper joint, and the movable joint is positioned on the other side of the upper joint;

the lower joint, the upper joint and the movable joint are pivoted together through a pivoting shaft;

one side of the movable joint, which is close to the upper joint, is connected with a gear, the upper joint is provided with a tooth socket matched with the gear, and the gear is matched with the tooth socket to enable the movable joint to have a plurality of unfolding positions and folding positions;

the gear is disengaged from the tooth socket after rotating, and the movable joint can rotate to one of the unfolding positions or the folding position.

The beneficial effects of adopting above-mentioned preferred scheme lie in, the relative rotation of lower joint, upper joint can not influence the freely movable joint, and freely movable joint's rotation can not influence lower joint, upper joint, makes freely movable joint independently move, reduces the required activity space of three mutually supporting simultaneously.

Preferably, the first connecting part is connected with a supporting rod;

the locking piece A is positioned on the support rod, a locking position and an unlocking position exist according to the difference of the axial position of the locking piece A on the support rod, and the unlocking position is positioned above the locking position;

the unlocking mechanism limits the locking piece A to move on the supporting rod, and axial external force along the supporting rod can drive the locking piece A to move from a locking position to an unlocking position through the unlocking mechanism.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, the axial external force accessible release mechanism drive along the bracing piece lock piece A removes to the unblock position by the locking position, and lock piece A removes to the cooperation that release mechanism was required in the unblock position by the locking position, increases lock piece A, lock piece B's locking steadiness, prevents lock piece A, lock piece B because of striking unblock.

Preferably, a locking groove matched with the locking piece A is formed in the locking piece B, the locking piece A is clamped into the locking groove when the locking piece A and the locking piece B are relatively close to each other, the locking groove can limit the locking piece A and the locking piece B from relatively far away, in order to facilitate the locking piece A to be clamped into the locking groove, a guide inclined plane is arranged on one side, close to the second stopping part, of the locking piece B;

the locking groove has the advantages that when the locking piece A and the locking piece B are relatively close to each other, the locking piece A is clamped into the locking groove, the locking groove can limit the locking piece A and the locking piece B from relatively far away, unlocking caused by external force interference is avoided, and safety performance is improved; the direction inclined plane can make things convenient for locking piece A card to go into locking groove.

Or

The utility model discloses a joint bracing piece, including bracing piece, first sleeve, first connecting portion and spacing post, first sleeve is established to bracing piece outside cover, and the bracing piece is connected and is equipped with spacing post between first sleeve and first connecting portion through first sleeve and first connecting portion to set up the groove of stepping down that is used for joint pivoted at first sleeve bottom.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, make things convenient for bracing piece installation, dismantlement, spacing post, the groove of stepping down, cooperation first stop portion, second stop portion, it is spacing to carry out upper and lower joint when the joint is received and close to receive.

Preferably, the support rod is hollow; the unlocking mechanism comprises a fixed seat and a movable seat which are arranged in the supporting rod, a first elastic piece is arranged between the fixed seat and the movable seat for connection,

the sliding seat is connected with a locking piece A, and when axial external force acting on the sliding seat along a supporting rod and towards an unlocking position acts on the sliding seat, the sliding seat extrudes a first elastic piece to drive the locking piece A to move to the unlocking position from the locking position.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, lock piece A can accomplish the unblock when removing to the unblock position by the locking position, allows lock piece A to remove under the extrusion of first elastic component between locking position, unblock position, avoids external force to disturb and leads to the unblock.

According to one aspect of the present invention, there is provided a foldable stroller frame, comprising any one of the above-mentioned folding joints;

the top of the supporting rod connected with the first connecting part is connected with the first connecting part through a push rod assembly, the bottom end of the supporting rod is hinged with a seat supporting rod, and the seat supporting rod is rotatably connected with a seat assembly;

the bottom end of the handrail connecting rod is hinged with a supporting leg folding joint;

the end, far away from the armrest connecting rod, of the support leg folding joint is hinged with a front leg, the front leg is rotatably connected with a pedal rod, and the pedal rod is hinged with one end, far away from the support rod, of the seat support rod;

the middle part that the joint was closed to the supporting leg is connected with the back leg, the back leg rotates with the seat bracing piece to be connected, and just when first connecting portion, second connecting portion all were in the expansion position, front leg, back leg, supporting leg were closed the joint and are "T" type structure distribution.

Compared with the prior art, the utility model discloses following beneficial effect has: the locking piece A and the locking piece B are locked together, the push rod assembly, the folding joint of the supporting leg and the front and rear legs also rotate and move to the unfolding position, the upper joint and the lower joint cannot be folded automatically, and the frame of the foldable baby carriage is unfolded; after the unlocking, the first connecting part and the second connecting part rotate relatively under the action of gravity to reach the folding position, and the push rod assembly, the supporting leg folding joint, the front leg and the rear leg are driven to enter the folding position, so that the folding device is convenient and fast to use and convenient to operate.

Preferably, the seat assembly is rotatably connected with a support rod, and the other end of the support rod is rotatably connected with the rear leg;

when the frame of the foldable baby carriage is unfolded, the joint of the support rod and the seat assembly is positioned in front of the folding joint of the supporting leg, the joint of the support rod and the rear leg is positioned behind the folding joint of the supporting leg, and the joint of the support rod and the seat assembly is positioned above the joint of the support rod and the rear leg.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, the support pole can not increase occupation space, and the support pole can increase seat subassembly's stability when foldable baby carriage frame expandes to relative seat bracing pole is rotatory when not hindering seat subassembly to close.

Preferably, the armrest connecting rod is rotatably connected with an armrest, the tail end of the armrest is rotatably connected with a limiting rod, and one end, far away from the armrest, of the limiting rod is rotatably connected with the seat supporting rod.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, when foldable perambulator frame expanded, the handrail can not take place to rotate, makes things convenient for the baby to grasp, perhaps guardian transport perambulator.

Preferably, set up on the push rod subassembly and receive the car box and unblock button, unblock button and receive car box swing joint, receive the car box and seted up the unblock button movable hole, set up the guide way on the unblock button movable hole, guide way sliding connection receives the sliding seat, receive the sliding seat and be connected with the haulage rope of receiving, through receive the haulage rope control locking piece A, locking piece B and remove the locking.

Adopt above-mentioned preferred scheme's beneficial effect to lie in, through receive car haulage rope control lock piece A, lock piece B remove the locking, and the unblock button is located push rod assembly, can make folding operation more convenient.

Drawings

Fig. 1 is a first schematic structural view of a folding joint of the present invention;

fig. 2 is a second schematic structural view of the folding joint of the present invention;

FIG. 3 is a schematic view of the lower joint;

FIG. 4 is a schematic structural view of the push rod assembly;

FIG. 5 is a schematic structural view of the car collection box;

FIG. 6 is a side view of the seat post;

FIG. 7 is a schematic view of the structure of a movable joint;

FIG. 8 is a first schematic structural view of the upper joint;

FIG. 9 is a second schematic structural view of the upper joint;

FIG. 10 is a schematic view of the unfolded configuration of the frame of the pushchair;

fig. 11 is a schematic structural view of the frame of the foldable stroller in an unfolded state to a folded intermediate state;

fig. 12 is a structural view of the frame of the foldable stroller in an intermediate state.

Reference numerals shown in the drawings: 1-upper joint; 11-a first connection; 12-lock a; 13-a first stop portion; 14-lock C; 15-locking member D; 16-a first cartridge; 17-a second cartridge; 2-lower joint; 21-a second connection; 22-lock B; 23-a second stop portion; 3-a movable joint; 31-a gear; 32-gullet; 4-a support bar; 41-a first sleeve; 42-a chute; 43-a limiting column; 44-a relief groove; 51-a fixed seat; 52-a movable seat; 53-a first elastic member; 54-a second sleeve; 6-a push rod assembly; 60-a second elastic member; 61-vehicle collection box; 62-an unlock button; 63-a guide groove; 64-folding the movable seat; 65-retracting the traction rope; 66-a limiting slide block; 67-a limit clamping block; 68-unlocking the hole; 69-external button; 7-a seat support bar; 8-a seat assembly; 81-a pedestal post; 82-a first vertical bar; 83-a second vertical bar; 84-diagonal rods; 9-handrail connecting rod; 91-a handrail; 92-a limiting rod; 100-support leg folding joints; 110-front leg; 111-foot bar; 120-rear leg.

Detailed Description

In order to better understand the technical solution of the present invention, the following embodiments are combined to further explain the present invention.

Example 1

A folding joint comprises an upper joint 1 and a lower joint 2 which is rotationally connected with the upper joint 1, wherein the upper joint and the lower joint both have an unfolding position and a folding position;

a first connecting portion 11 provided in the upper joint 1, and a lock piece a12 that is linked with the first connecting portion 11;

a second connecting portion 21 provided in the lower joint 2, and a lock piece B22 linked with the first connecting portion 11;

the locking piece A12 and the locking piece B22 are relatively close to or far away along with the relative rotation of the upper joint 1 and the lower joint 2, and when the first connecting part 11 and the second connecting part 21 are in the unfolding positions, the locking piece A12 and the locking piece B22 are relatively close to each other and can be locked together; after the locking piece a12 and the locking piece B22 are unlocked, the first connecting part 11 and the second connecting part 21 can rotate through the upper joint 1 and the lower joint 2 and move to the retracted position at the same time, and drive the locking piece a12 and the locking piece B22 to relatively move away, and the upper joint 1 is provided with a first stop part 13; the lower joint 2 is provided with a second stop part 23; when the first stop portion 13 contacts the second stop portion 23, the first connecting portion 11 and the second connecting portion 21 both move to the retracted position.

The lower joint 2 is positioned on one side of the upper joint 1, the movable joint 3 is positioned on the other side of the upper joint 1, and the lower joint 2, the upper joint 1 and the movable joint 3 are pivoted together through a pivoting shaft;

one side of the movable joint 3, which is close to the upper joint 1, is connected with a gear 31, the upper joint 1 is provided with a tooth groove 32 matched with the gear 31, and the gear 31 is matched with the tooth groove 32 to enable the movable joint 3 to have a plurality of unfolding positions and folding positions;

the gear 31 is disengaged from the tooth groove 32 after rotating, and drives the movable joint 3 to move relative to the upper joint 1, and the movable joint 3 can rotate to one of the unfolding positions or the folding position.

The first connecting part 11 is connected with the supporting rod 4, the locking piece A12 is positioned on the supporting rod 4, a locking position and an unlocking position exist according to the difference of the axial position of the locking piece A12 on the supporting rod 4, and the unlocking position is positioned above the locking position, as an alternative, in order to facilitate the installation and the disassembly of the supporting rod 4, the supporting rod 4 is externally sleeved with a first sleeve 41, the supporting rod 4 is connected with the first connecting part 11 through the first sleeve 41, a limiting column 43 is arranged between the first sleeve 41 and the first connecting part 11, a abdicating groove 44 for the rotation of the lower joint 2 is arranged at the bottom end of the first sleeve 41, and the upper joint 2 and the lower joint 2 are limited when the folding joint is folded by matching with the first stopping part 13 and the second stopping part 23;

the unlocking mechanism limits the locking piece A12 to move on the supporting rod 4, and an axial external force along the supporting rod 4 can drive the locking piece A12 to move from a locking position to an unlocking position through the unlocking mechanism, and further, the supporting rod 4 is hollow; the unlocking mechanism comprises a fixed seat 51 and a movable seat 52 which are arranged in a support rod 4, a first elastic piece 53 is arranged between the fixed seat 51 and the movable seat 52 for connection, the movable seat 52 is connected with a locking piece A12, in the embodiment, the first elastic piece 53 is a spring, two ends of the movable seat 52 extend out of the support rod 4 and are connected with the locking piece A12, a sliding groove 42 matched with the movable seat 52 is axially arranged on the side wall of the support rod 4, as an optional scheme, a second sleeve 54 is sleeved outside the support rod 4, and the second sleeve 54 is connected with the movable seat 52; when an external axial force along the support rod 4 and toward the unlocking position acts on the movable seat 52, the movable seat 52 extrudes the first elastic piece 53 to drive the locking piece a12 to move from the locking position to the unlocking position.

The present invention provides a foldable stroller frame using the above folding joints, including any one of the above folding joints, and two of the folding joints are oppositely disposed for folding and unfolding the foldable stroller frame.

The top of the supporting rod 4 connected with the first connecting part 11 is connected through a push rod assembly 6, a car collection box 61 and an unlocking button 62 are arranged on the push rod assembly 6, the unlocking button 62 is movably connected with the car collection box 61, an unlocking button 62 movable hole is formed in the car collection box 61, a guide groove 63 is formed in the unlocking button 62, the guide groove 63 is slidably connected with a car collection movable seat 64, the car collection movable seat 64 is connected with a car collection traction rope 65 as an alternative scheme, a safety lock is arranged at the top end of the car collection box 61 and comprises a limiting slide block 66, a limiting fixture block 67 is arranged on the limiting slide block 66, the limiting fixture block 67 has an unlocking position and a locking position, an unlocking fixture block 68 matched with the limiting fixture block 67 is arranged on the unlocking button 62, and when the limiting fixture block 67 is located at the unlocking position, the limiting fixture block 67 can slide into the unlocking fixture hole 68 by pressing the unlocking button, the unlocking button 62 slides upwards to drive the lock piece A12 and the lock piece B22 to be unlocked; furthermore, the last connecting seat that sets up of limit slider 66, the connecting seat stretches out car collection box 61 and sets up external button 69, limit slider 66's left end and/or right-hand member are connected with car collection box 61 through second elastic component 60, and the preferred spring of second elastic component 60, second elastic component 60 makes limit slider 66 stop at the locking position through elastic force, drives limit slider 66 compression second elastic component 60, and limit slider 66 removes to the unlocking position, and movable seat 52 extrudes first elastic component 53 drive locking piece A12 removes to the unlocking position by the locking position, and unlocking button 62 drives movable seat 52 and extrudes first elastic component 53 drive locking piece A12 removes to the unlocking position by the locking position. In this embodiment, the other end of the pulling rope is connected to the movable seat 52, and the locking member a12 and the locking member B22 are controlled to be unlocked by the retracting pulling rope 65. Specifically, be equipped with the locking groove with locking piece a12 matched with on this embodiment locking piece B22, locking piece a12, locking piece a12 card goes into the locking inslot when locking piece B22 is close to relatively, the locking groove can restrict locking piece a12, locking piece B22 is kept away from relatively, go into the locking groove for making things convenient for locking piece a12 card, one side that locking piece B22 is close to second gear stop portion 23 sets up the direction inclined plane, locking piece a12, locking piece a12 can not the rebound under the extrusion of spring after locking of locking piece B22, make the two locking together. A seat supporting rod 7 is hinged to the bottom end of the supporting rod 4, and a seat assembly 8 is rotatably connected to the seat supporting rod 7; a seat rod 81 is rotatably connected to the seat assembly 8, and the other end of the seat rod 81 is rotatably connected to the rear leg 120.

The handrail connecting rod 9 is connected with the second connecting part 21, and the bottom end of the handrail connecting rod 9 is hinged with a supporting leg folding joint 100; the armrest connecting rod 9 is rotatably connected with an armrest 91, the tail end of the armrest 91 is rotatably connected with a limiting rod 92, and one end, far away from the armrest 91, of the limiting rod 92 is rotatably connected with the seat supporting rod 7. In order to avoid collision between the support rod 81 and other mechanisms (particularly, the support leg folding joint 100) during folding or unfolding, the support rod 81 includes a first vertical rod 82 and a second vertical rod 83, the first vertical rod 82 and the second vertical rod 83 are connected by an inclined rod 84, when the seat assembly 8 is used, the first vertical rod 82 is close to the seat assembly 8, and a space for relative rotation of the first vertical rod 82 and the support leg folding joint 100 is formed between the first vertical rod 82 and the seat assembly 8.

The movable joints 3 are used for installing the cloak, the movable joints 3 can rotate to the unfolding position or the folding position of one of the cloak, a user can conveniently adjust the area of the cloak covering the seat rod assembly, and meanwhile, jacks can be selectively arranged in the limiting columns 43 and used for being inserted into the supporting keels in the middle of the cloak of the frame of the foldable baby carriage.

One end of the support leg folding joint 100, which is far away from the armrest connecting rod 9, is hinged with a front leg 110, the front leg 110 is rotatably connected with a foot rest lever 111, and the foot rest lever 111 is hinged with one end of the seat support rod 7, which is far away from the support rod 4;

the middle part of the supporting leg folding joint 100 is connected with a rear leg 120, the rear leg 120 is rotatably connected with the seat supporting rod 7, and when the first connecting part 11 and the second connecting part 21 are both positioned at the unfolding positions, the front leg 110, the rear leg 120 and the supporting leg folding joint 100 are distributed in a T-shaped structure.

When the frame of the foldable baby carriage is unfolded, the joint of the support rod 81 and the seat assembly 8 is positioned in front of the support leg folding joint 100, the joint of the support rod 81 and the rear leg 120 is positioned behind the support leg folding joint 100, and the joint of the support rod 81 and the seat assembly 8 is positioned above the joint of the support rod 81 and the rear leg 120;

as an alternative, a locking piece C14 is arranged on the armrest connecting rod 9, one end of the locking piece C14 is rotatably connected with the armrest connecting rod 9, the other end of the locking piece C14 is provided with a first clamping groove, and the support rod 4 or the seat support rod 7 is provided with a first clamping seat 16 matched with the first clamping groove; the push rod assembly 6 is provided with a locking piece D15, the locking piece D15 is provided with a second clamping groove, the rear leg 120 is provided with a second clamping seat 17 matched with the second clamping groove, as shown in fig. 10-12, when the first connecting part 11 and the second connecting part 21 are both in the unfolding positions, the locking piece C14 rotates clockwise, the first clamping groove and the first clamping seat 16 can be relatively close to and buckled together, when the locking piece C14 rotates anticlockwise, and the direction is opposite to the hand direction when the locking piece a12 and the locking piece B22 are opened, so that the stability of the unfolding state of the frame is improved, and the frame is prevented from being folded accidentally due to collision; when the first connecting portion 11 and the second connecting portion 21 are both in the folded positions, the locking member D15 rotates clockwise or counterclockwise, and the second card slot and the second card seat 17 can be relatively close to each other and fastened together to limit the rotation of each mechanism, so that the carrying is facilitated.

The frame folding and unfolding process comprises the following steps: when the vehicle is folded, if the first clamping groove and the first clamping seat 16 are buckled, the first clamping groove and the first clamping seat 16 are firstly separated from being buckled, then the unlocking button 62 is pressed, the movable seat 64 for folding is controlled to move, the locking piece A12 is pulled through the traction rope, the locking piece A12 and the locking piece B22 are unlocked, the gravity center of the push rod assembly 6, the supporting rod 4, the seat supporting rod 7, the seat assembly 8 and the armrest connecting rod 9 moves downwards under the action of gravity, the push rod assembly 6 and the supporting rod 4 rotate anticlockwise to be close to the rear leg 120 direction, the seat supporting rod 7 and the armrest connecting rod 9 rotate clockwise to be close to the rear leg 120 direction, meanwhile, the armrest connecting rod 9 pulls the front leg 110 to be close to the rear leg 120 direction, and the armrest connecting rod 9 pulls the seat assembly 8 to be close to the rear leg 120 direction, so that the.

When the frame is unfolded, if the second clamping groove and the second clamping seat 17 are buckled, the second clamping groove and the second clamping seat 17 are firstly separated from buckling, the push rod assembly 6 is lifted upwards, the related mechanism rotates reversely to fold the frame, and when the first connecting part 11 and the second connecting part 21 reach the unfolding positions, the locking piece A12 and the locking piece B22 are automatically locked together to form the unfolded frame.

Example 2

This embodiment provides a foldable baby carriage frame, no longer redundantly describe with the same part of embodiment, the difference lies in, set up rear wheel brake subassembly on the back leg 120, increase baby carriage frame's the stability of standing, the bottom of seat subassembly 8 sets up the telescopic link, the telescopic link is kept away from the one end of bracing piece 4 and is set up the handle, opens the telescopic link after the frame is closed, conveniently carries.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A joint for stowing, comprising:

the locking piece A is linked with the first connecting part;

the locking piece A and the locking piece B are relatively close to or far away from each other along with the relative rotation of the upper joint and the lower joint, and when the first connecting part and the second connecting part are both in the unfolding positions, the locking piece A and the locking piece B are relatively close to each other and can be locked together;

after the locking piece A and the locking piece B are unlocked, the first connecting part and the second connecting part can rotate through the upper joint and the lower joint and simultaneously move to the folding position, and the locking piece A and the locking piece B are driven to be relatively far away.

2. The folding joint of claim 1,

the upper joint is provided with a first stop part;

the lower joint is provided with a second stop part;

3. The folding joint of claim 1, further comprising a movable joint;

4. The joint of claim 1, wherein the first connecting portion is connected to a support rod;

5. The folding joint according to claim 4, wherein a locking groove matched with the locking member A is formed in the locking member B, the locking member A is clamped in the locking groove when the locking member A and the locking member B are relatively close to each other, the locking groove can limit the locking member A and the locking member B from relatively far away, and a guide inclined surface is formed on one side, close to the second stopping portion, of the locking member B so that the locking member A can be clamped in the locking groove;

or

6. The joint of claim 4, wherein the support rod is hollow; the unlocking mechanism comprises a fixed seat and a movable seat which are arranged in the supporting rod, a first elastic piece is arranged between the fixed seat and the movable seat for connection,

7. A foldable stroller frame, comprising a folding joint according to any one of claims 1 to 6;

the middle part of the supporting leg folding joint is connected with a rear leg, the rear leg is rotatably connected with the seat supporting rod, and when the first connecting part and the second connecting part are both positioned at the unfolding positions, the front leg, the rear leg and the supporting leg folding joint are distributed in a T-shaped structure.

8. The foldable stroller frame of claim 7, wherein a seat post is pivotally connected to the seat assembly, the other end of the seat post being pivotally connected to the rear leg;

when the foldable baby carriage frame is unfolded, the joint of the support rod and the seat assembly is positioned in front of the folding joint of the support leg, the joint of the support rod and the rear leg is positioned behind the folding joint of the support leg, and the joint of the support rod and the seat assembly is positioned above the joint of the support rod and the rear leg.

9. The foldable stroller frame of claim 7, wherein the armrest connecting rod is rotatably connected with an armrest, the end of the armrest is rotatably connected with a limiting rod, and the end of the limiting rod far away from the armrest is rotatably connected with the seat supporting rod.

10. The foldable baby carriage frame as claimed in claim 7, wherein the push rod assembly is provided with a folding box and an unlocking button, the unlocking button is movably connected with the folding box, the folding box is provided with an unlocking button moving hole, the unlocking button moving hole is provided with a guide groove, the guide groove is slidably connected with a folding sliding seat, the folding sliding seat is connected with a folding traction rope, and the locking piece A and the locking piece B are controlled to be unlocked through the folding traction rope.