CN111114612B

CN111114612B - Child cart with simple folding operation

Info

Publication number: CN111114612B
Application number: CN202010050229.1A
Authority: CN
Inventors: 何于辉
Original assignee: Xiantao Zhongzhong Plastic Products Co ltd
Current assignee: Xiantao Zhongzhong Plastic Products Co ltd
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2025-05-23
Anticipated expiration: 2040-01-16
Also published as: CN111114612A

Abstract

The invention discloses a child stroller with easy folding and folding operation. An upper push rod can be slidably inserted into a lower push rod, the lower end of the lower push rod is coaxially hinged to the upper end of the rear foot, and the outer wall of the connection is matched with a sliding member; an unlocking button is arranged on the rear side of the handle; the middle part of the rear end of the bottom of the seat is hinged to the front side of the sliding member, and the lower end of the seat support tube is hinged to the upper end of the rear foot; the rear side of the sliding member is hinged to the upper end of the push rod support sheet, the lower end of the push rod support sheet is hinged to one end of the front foot support sheet, the other end of the front foot support sheet is hinged to the front foot, and the front foot is hinged to the middle part of the rear foot; an unlocking implicated lead rope is arranged inside the upper push rod, the upper end of the unlocking implicated lead rope is engaged with the unlocking button, and the lower end of the unlocking implicated lead rope is engaged with the push rod locking piece at the lower end of the upper push rod. The invention saves manufacturing cost and labor cost, is simple, convenient and easy to operate, has a small size and light weight, can be dragged after folding, and is more convenient and humane to carry and place.

Description

Child cart with simple folding operation

Technical Field

The invention relates to the field of infant products, in particular to a trolley, and in particular relates to a child trolley with simple folding operation.

Background

The baby stroller can be used for taking babies, so that parents are not required to hold the baby. The child stroller comprises a front foot tube, a rear foot pivoted on the rear side of the front foot tube, a seat pivoted on the proper position of the front side of the lower push rod tube, a seat locking mechanism used for limiting relative rotation of the seat and the front foot tube, a frame locking mechanism used for limiting relative rotation of the rear foot and the front foot and arranged between the rear foot and the push rod, and a lock releasing device used for releasing the lock of the seat locking mechanism and a frame locking device used for releasing the lock of the rear foot and the front foot and arranged between the rear foot and the push rod. Therefore, when the cart is to be folded, the seat locking mechanism and the frame locking mechanism are operated respectively by two times, so that the seat locking mechanism and the frame locking mechanism can be unlocked, and the front foot, the rear foot and the push rod of the seat can be rotated relative to the pivot point to be folded.

The arrangement mode makes the folding operation of the whole trolley very complicated, which is a laborious and inconvenient matter for parents holding the child.

Disclosure of Invention

(One) solving the technical problems

The invention aims to provide a child cart with simple folding operation, which solves the problems that the folding operation of the whole cart is very complicated, and the child cart is very hard and inconvenient for parents holding the child.

(II) technical scheme

The child stroller comprises a front foot, a rear foot, a lower push rod and an upper push rod, wherein the upper push rod is slidably inserted into the lower push rod, the lower end of the lower push rod is coaxially hinged to the upper end of the rear foot, the outer wall of the connecting part of the lower push rod is matched with a sliding piece, a handle is arranged at the upper end of the upper push rod, an unlocking button is arranged at the rear side of the handle, a handrail connecting pipe is fixedly arranged at the middle upper part of the front side of the lower push rod, two ends of the handrail connecting pipe are rotatably connected with handrails, handrail supporting pipes are hinged below two sides of the handrails, the lower end of each handrail supporting pipe is hinged to the lower side of a seat, seat supporting pipes are symmetrically hinged to two sides of the front end of the bottom of the seat, the middle part of the bottom of the seat is hinged to the front side of a sliding piece, the lower end of each seat supporting pipe is hinged to the upper end of the rear foot, the rear side of the sliding piece is hinged to the upper end of the push rod supporting piece, the lower end of each push rod supporting piece is hinged to one end of the front foot supporting piece, the other end of each front foot supporting piece is hinged to the front foot supporting piece, and the front foot is hinged to the middle part of the front foot.

Further, the inside of last push rod be provided with the unblock and draw together the cable, the upper end and the unblock button looks block of unblock draw together the cable, the lower extreme and the push rod locking piece looks block of last push rod lower extreme of unblock draw together the cable, and all cooperate reset spring on unblock button and the push rod locking piece.

Further, one side of the lower push rod is provided with a plurality of holes matched with the push rod locking pieces from top to bottom.

Further, an unlocking driving piece and a frame locking piece are arranged in the T-shaped hole at the lower end of the lower push rod in a telescopic manner through a reset spring respectively, the unlocking driving piece is perpendicular to the frame locking piece, and the end part of the unlocking driving piece is exposed out of the inner side plastic piece of the lower push rod to be matched with the lower end of the upper push rod.

Further, a first driving inclined plane is arranged on the unlocking driving piece, a second driving inclined plane is arranged on the frame locking piece, and the unlocking driving piece and the frame locking piece are matched with each other through the first driving inclined plane and the second driving inclined plane.

Further, the frame locking piece is matched with the holes at the lower ends of the sliding piece and the push rod.

Further, limit support columns are symmetrically arranged on two sides of the elbow at the upper end of the rear foot.

The folding method of the child cart with the simple folding operation comprises the following steps of pressing an unlocking button to enable an upper push rod to slide downwards in a lower push rod, pushing the upper push rod to the bottom, unlocking a sliding piece, pushing the upper push rod downwards, enabling the sliding piece to slide on the lower push rod, driving a push rod supporting piece and a seat to move downwards together, and finishing folding.

(III) beneficial effects

Compared with the prior art, after adopting the technical scheme, the invention has the beneficial effects that:

The folding type portable folding seat saves the manufacturing cost and the labor cost, is simple, convenient and easy to operate, has small volume, light weight and more humanized carrying and placing, is convenient to carry and place after being folded, has larger social utilization value, and is worth popularizing.

Drawings

FIG. 1 is a perspective view of an embodiment provided by the present invention;

FIG. 2 is a front view of an embodiment provided by the present invention;

FIG. 3 is a block diagram showing the first step of pushing the upper push rod into the lower push rod according to the embodiment of the present invention;

FIG. 4 is a block diagram showing the second step of pushing down the push rod according to the embodiment of the present invention;

FIG. 5 is a block diagram of a collapsed position of an embodiment provided by the present invention;

FIG. 6 is a block diagram of the push-up lever pulled out after the embodiment of the present invention is retracted in place;

FIG. 7 is a cross-sectional view of an embodiment provided by the present invention;

FIG. 8 is an enlarged schematic view of portion A of FIG. 7;

FIG. 9 is an enlarged schematic view of portion B of FIG. 7;

FIG. 10 is a cross-sectional view of an upper push rod pushing into a lower push rod according to an embodiment of the present invention;

FIG. 11 is an enlarged schematic view of portion C of FIG. 10;

FIG. 12 is a schematic diagram of an exploded construction of an embodiment provided by the present invention;

FIG. 13 is an enlarged schematic view of portion D of FIG. 12;

Fig. 14 is an enlarged schematic view of the portion E of fig. 13;

FIG. 15 is a state diagram of use of a second embodiment of the present invention;

FIG. 16 is a view showing a folding state of a second embodiment of the present invention;

reference numerals illustrate:

1. Front foot, rear foot, 3, lower push rod, 31, unlocking driving piece, 32, frame locking piece, 33, driving inclined plane I, 34, driving inclined plane II, 4, upper push rod, 41, unlocking traction cable, 42, push rod locking piece, 5, seat, 6, seat supporting tube, 7, armrest, 8, armrest supporting tube, 9, push rod supporting piece, 10, front foot supporting piece 11, sliding piece 12, armrest connecting tube 13, unlocking button, 14, handle, 15 and limit supporting column.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Embodiment one:

Referring to fig. 1-14, an embodiment of the present invention provides a stroller with simple folding operation, which comprises a front leg 1, a rear leg 2, a lower push rod 3, an unlocking driving member 31, a frame locking piece 32, a driving inclined plane one 33, a driving inclined plane two 34, an upper push rod 4, an unlocking traction cable 41, a push rod locking piece 42, a seat 5, a seat support tube 6, an armrest 7, an armrest support tube 8, a push rod support piece 9, a front leg support piece 10, a sliding member 11, an armrest connection tube 12, an unlocking button 13, a handle 14 and a limit support column 15,

The upper push rod 4 is slidably inserted into the lower push rod 3, the lower end of the lower push rod 3 is coaxially sleeved at the upper end of the rear foot 2, the outer wall of the joint of the lower push rod 3 is matched with the sliding piece 11, the upper end of the upper push rod 4 is provided with a handle 14, the rear side of the handle 14 is provided with an unlocking button 13, an unlocking traction rope 41 is arranged in the upper push rod 4, the upper end of the unlocking traction rope 41 is clamped with the unlocking button 13, the lower end of the unlocking traction rope 41 is clamped with a push rod locking piece 42 at the lower end of the upper push rod 4, the unlocking button 13 and the push rod locking piece 42 are respectively matched with a reset spring, and a plurality of holes matched with the push rod locking piece 42 are formed in one side of the lower push rod 3 from top to bottom;

The middle upper part of the front side of the lower push rod 3 is fixedly provided with an armrest connecting pipe 12, two ends of the armrest connecting pipe 12 are rotatably connected with an armrest 7, armrest supporting pipes 8 are hinged below two sides of the armrest 7, the lower end of each armrest supporting pipe 8 is rotatably connected with a seat, seat supporting pipes 6 are symmetrically hinged on two sides of the front end of the bottom of the seat 5, the middle part of the rear end of the bottom of the seat 5 is hinged with the front side of a sliding piece 11, the lower end of each seat supporting pipe 6 is hinged with the upper end of a rear foot 2, the rear side of the sliding piece 11 is hinged with the upper end of a push rod supporting piece 9, the lower end of the push rod supporting piece 9 is hinged with one end of a front foot supporting piece 10, the other end of the front foot supporting piece 10 is hinged with a front foot 1, and the front foot 1 is hinged with the middle part of the rear foot 2.

The inner side of the lower end of the lower push rod 3 is provided with a T-shaped hole, the longitudinal hole of the T-shaped hole is provided with an unlocking driving piece 31 in a telescopic way through a reset spring, one end of the unlocking driving piece 31 is provided with a driving inclined plane I33, the other end of the unlocking driving piece 31 is exposed out of the upper end of the rear foot 2 under the action of the reset spring and is matched with the lower end of the upper push rod 4, the transverse hole of the T-shaped hole is provided with a frame locking piece 32 in a telescopic way through the reset spring, the frame locking piece 32 is provided with a driving inclined plane II 34, the unlocking driving piece 31 and the frame locking piece 32 are matched with the holes of the lower ends of the sliding piece 11 and the lower push rod 3 through the driving inclined plane I33 and the driving inclined plane II 34;

limiting support columns 15 are symmetrically arranged on two sides of the elbow at the upper end of the rear foot 2, and when the whole frame is in a use state, the limiting support columns 15 play a role in supporting and limiting the seat support tube 6, so that the stability of the frame is improved.

The receiving and releasing method of the invention is as follows:

As shown in fig. 3, the unlocking button 13 is pressed to slide the upper push rod 4 downward in the lower push rod 3. After the upper push rod 4 is pushed to the bottom, the sliding part 11 is unlocked, and at the moment, the sliding part 11 is slightly pushed downwards, namely, the sliding part slides on the lower push rod 3, so that the frame is folded. As shown in fig. 4, the sliding piece 11 slides on the push rod 3 to drive the push rod supporting piece 9, the seat 5 slides along with the upper end direction of the push rod 3, the purpose of collecting the vehicle is achieved, the state of the vehicle frame after the vehicle frame is collected is shown in fig. 5, at this time, the vehicle frame is opened only by opening the unlocking button 13, and then the push rod 3 is lifted upwards. As shown in fig. 6, after folding, the upper push rod 4 is pulled out from the lower push rod 3, so that the vehicle can be towed and is convenient to carry.

As shown in fig. 7 and 9, an unlocking guide 41 is provided in the upper push rod 4, and both ends of the unlocking guide 41 are connected to the unlocking button 13 and the push rod locking piece 42, respectively. When the unlocking button 13 is pressed, the unlocking traction rope 41 is pulled to enable the push rod locking piece 42 at the other end to be separated from the square hole on the lower push rod 3, the upper push rod 4 is unlocked, the upper push rod 4 can slide downwards in the lower push rod 3, and the unlocking button 13 and the push rod locking piece 42 can be reset under the action of the reset spring.

As shown in fig. 10-14, a first driving inclined plane 33 is disposed at the lower side of the unlocking driving member 31, a second driving inclined plane 34 is disposed on the frame locking plate 32, when the upper push rod 4 pushes the lower bottom end of the lower push rod 3, the upper push rod 4 bumps against the unlocking driving member 31, and under the action of the first driving inclined plane 33 and the second driving inclined plane 34, the frame locking plate 32 is separated from the square groove of the sliding member 11 and is retracted inwards. The sliding piece 11 can slide on the push rod 3, and the frame is unlocked. The unlocking driving piece 31 and the frame locking piece 32 can be reset under the action of a reset spring.

Embodiment two:

Fig. 15-16 are block diagrams of another embodiment of the present invention. In this embodiment, the seat 5 is replaced by an integral seat, the armrest 7 is replaced by a front armrest, and an adjustable backrest is added, but the main frame structure and folding mode of the seat are the same as those of the embodiment.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. A child cart with simple folding operation comprises a front foot (1), a rear foot (2), a lower push rod (3) and an upper push rod (4), and is characterized in that the upper push rod (4) is slidably inserted into the lower push rod (3), the lower end of the lower push rod (3) is coaxially hinged to the upper end of the rear foot (2), the outer wall of the connecting position is matched with a sliding piece (11), a handle (14) is arranged at the upper end of the upper push rod (4), an unlocking button (13) is arranged at the rear side of the handle (14), a handrail connecting pipe (12) is fixedly arranged at the middle upper part of the front side of the lower push rod (3), two ends of the handrail connecting pipe (12) are rotatably connected with a handrail (7), handrail supporting pipes (8) are hinged below two sides of the handrail (7), seat supporting pipes (6) are symmetrically hinged to two sides of the front end of the bottom of the seat (5), the middle part of the bottom of the seat (5) is hinged to the front side of the sliding piece (11), the lower end of the supporting pipe (6) is hinged to the front side of the sliding piece (11), two ends of the lower end of the seat (2) are hinged to the front end of the supporting piece (10), two hinged ends of the front end of the sliding piece (10) are hinged to the front end of the supporting piece (10), the front foot (1) is hinged with the middle part of the rear foot (2);

an unlocking traction rope (41) is arranged in the upper push rod (4), the upper end of the unlocking traction rope (41) is clamped with the unlocking button (13), the lower end of the unlocking traction rope (41) is clamped with a push rod locking piece (42) at the lower end of the upper push rod (4), and return springs are matched with the unlocking button (13) and the push rod locking piece (42);

one side of the lower push rod (3) is provided with a plurality of holes matched with the push rod locking piece (42) from top to bottom;

an unlocking driving piece (31) and a frame locking piece (32) are arranged in a T-shaped hole at the lower end of the lower push rod (3) in a telescopic manner through a reset spring respectively, the unlocking driving piece (31) is perpendicular to the frame locking piece (32), and an inner side plastic piece of the lower push rod (3) is exposed from the end part of the unlocking driving piece (31) and is matched with the lower end of the upper push rod (4);

The unlocking driving piece (31) is provided with a driving inclined plane I (33), the frame locking piece (32) is provided with a driving inclined plane II (34), and the unlocking driving piece (31) and the frame locking piece (32) are matched with each other through the driving inclined plane I (33) and the driving inclined plane II (34);

the frame locking piece (32) is matched with holes at the lower ends of the sliding piece (11) and the push rod (3);

Limiting support columns (15) are symmetrically arranged on two sides of the elbow at the upper end of the rear foot (2).