CN218892596U

CN218892596U - Child cart

Info

Publication number: CN218892596U
Application number: CN202221764814.9U
Authority: CN
Inventors: 唐鸣; 王庆
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2023-04-21
Anticipated expiration: 2032-07-07

Abstract

The utility model discloses a child stroller, which has an unfolding working position and a first folding working position and comprises a front wheel bracket, a rear wheel bracket, a front connecting rod, a rear connecting rod, a sliding piece and a driving connecting rod. The front wheel support, the rear connecting rod and the front connecting rod form a first four-bar mechanism; the sliding piece is connected with a damping piece, and when the child stroller is at the first folding working position, the damping piece is abutted to the lower edge of the front connecting rod; the baby carriage is also provided with a second folding working position, when the baby carriage is in the second folding working position, the lower edge of the front connecting rod is abutted against the damping piece to enable the damping piece to deform, a second included angle is formed between the front connecting line and the rear connecting line, and the second included angle is smaller than the first included angle. The child stroller provided by the utility model has a more compact structure in the second folding working position, occupies less space and is convenient to transport.

Description

Child cart

Technical Field

The utility model belongs to the field of children products, and relates to a child trolley.

Background

With the development of society, the living standard is improved, and the slow people gradually change from basic substance life to pursue more mental life. The baby carriage plays an important role in carrying babies in daily life for users, and becomes one of the indispensable child articles in the growth process of children. When the child cart is not used, the child cart needs to be folded and stand on the ground, and when the child cart needs to be transported, the more compact the structure of the child cart is, the better the structure is, and the occupied space is smaller.

Disclosure of Invention

In order to solve the technical problems, the utility model aims to provide a child stroller which can be folded for the second time, and the stroller after the secondary folding has a compact structure and a small volume.

In order to achieve the above purpose, the utility model adopts a technical scheme that:

a stroller having an unfolded operating position and a first folded operating position, comprising:

the front wheel bracket, the inferior part of the said front wheel bracket has front wheel assemblies;

the upper end part of the rear wheel bracket is pivotally connected with the upper end part of the front wheel bracket around a first rotation axis, and a rear wheel assembly is arranged at the lower part of the rear wheel bracket;

the front end part of the front connecting rod is pivotally connected with the front wheel bracket around a second rotating axis, and the second rotating axis is positioned below the first rotating axis when the front wheel bracket is in the unfolding working position;

the rear end part of the rear connecting rod is pivotally connected with the rear wheel bracket around a third rotation axis, and when the rear wheel bracket is in the unfolding working position, the third rotation axis is positioned below the first rotation axis, and the rear end part of the front connecting rod is pivotally connected with the front end part of the rear connecting rod;

the sliding piece is arranged on the rear connecting rod in a sliding manner along the front-rear direction of the rear connecting rod;

the driving connecting rod is used for driving the sliding piece to slide forwards along the rear connecting rod when the child stroller is switched from the unfolding working position to the first folding working position;

the front wheel support, the rear connecting rod and the front connecting rod form a first four-bar mechanism, when the stroller is in a first folding working position, the front wheel support and the rear wheel support are close to each other, so that the stroller is erected, a support is formed on the whole stroller by means of a front contact point of the front wheel assembly and the ground and a rear contact point of the rear wheel assembly and the ground, a virtual front connecting line is formed between the front contact point and the first rotating axis, a virtual rear connecting line is formed between the rear contact point and the first rotating axis, and a first included angle is formed between the front connecting line and the rear connecting line;

the sliding piece is connected with a damping piece, and when the child stroller is at a first folding working position, the damping piece is contacted with the lower edge of the front connecting rod; the baby carriage is also provided with a second folding working position, when the baby carriage is in the second folding working position, the lower edge of the front connecting rod is abutted against the damping piece to enable the damping piece to deform, a second included angle is formed between the front connecting line and the rear connecting line, and the second included angle is smaller than the first included angle.

Preferably, the sliding piece is a sliding sleeve sleeved on the rear connecting rod.

Preferably, the damping member includes a first clamping portion and a second clamping portion having elastic deformability, rear end portions of the first clamping portion and the second clamping portion are connected to the sliding member, and a gap is formed between the first clamping portion and the second clamping portion; the damping piece is provided with an opening working state and a closing working state, and in the opening working state, the first clamping part and the second clamping part are opened; in the closed working state, the first clamping part and the second clamping part are closed; when the first folding working position is adopted, the damping piece is in a closed working state, and the lower edge of the front connecting rod is abutted against an opening guide area formed between the front end part of the first clamping part and the front end part of the second clamping part; when the second folding working position is adopted, the lower edge of the front connecting rod passes through the opening guide area, the front connecting rod is at least partially inserted into a gap between the first clamping part and the second clamping part, and the damping piece is in an open working state.

Preferably, the rear ends of the first clamping part and the second clamping part are fixedly connected with the sliding part.

Preferably, the front end of the front link is pivotally connected to the middle part of the front wheel bracket about the second axis of rotation, and the rear end of the rear link is pivotally connected to the middle part of the rear wheel bracket about the third axis of rotation.

Preferably, the child stroller further comprises an upward pushing handle bar; the upper end part of the push-down handle rod is pivotally connected with the middle lower part of the push-up handle rod, and one of the lower end part of the push-down handle rod, the upper end part of the front wheel bracket and the upper end part of the rear wheel bracket is pivotally connected with the other part, and the third part is also pivotally connected with at least one of the other two parts; the upper end of the driving connecting rod is pivotally connected with the lower end of the push-up handle rod, the lower end of the driving connecting rod is pivotally connected with the sliding part, the driving connecting rod is also pivotally connected with the rear wheel bracket, and the sliding part, the driving connecting rod, the rear wheel bracket and the rear connecting rod form a second four-bar mechanism.

Preferably, one side of the upper end of the rear wheel bracket is pivotally connected with the front wheel bracket, and the other side of the upper end of the rear wheel bracket is pivotally connected with the lower end of the push-down handle bar.

Compared with the prior art, the utility model has the following advantages:

when the stroller is in the first folding working position, a first included angle is formed between the front connecting line and the rear connecting line, the front wheel support and the rear wheel support are close to each other, and the stroller can stand on the ground, so that the stroller is beneficial to placement. The manual force that applies to the front wheel support, the lower limb of the front wheel support drive front connecting rod contradicts the damping piece and makes the damping piece take place deformation, and the lower limb of front connecting rod inserts in the clearance of damping piece, and the shallow is in second folding working position this moment, forms the second contained angle between front line and the back line, and the second contained angle is less than first contained angle, and this children's shallow's structure is compacter, occupation space is less, convenient transportation.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a side view of a child stroller in a deployed working position according to an embodiment of the present utility model;

FIG. 2 is a side view of a stroller during a transition from a deployed operating position to a first collapsed operating position in accordance with an embodiment of the present utility model;

FIG. 3 is a side view of a stroller in a first folded operative position according to an embodiment of the present utility model;

FIG. 4 isbase:Sub>A cross-sectional view taken along the direction A-A in FIG. 3;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a side view of the stroller in a second folded operative position in accordance with an embodiment of the present utility model;

FIG. 7 is a cross-sectional view taken along the B-B direction in FIG. 6;

FIG. 8 is a partial enlarged view at D in FIG. 7;

fig. 9 is a schematic structural view of the slider and the damper.

Wherein:

1. a front wheel bracket; 11. a front wheel assembly; 111. a front contact point; 2. a rear wheel bracket; 21. a rear wheel assembly; 211. a rear contact point; 3. a first axis of rotation; 31. front connecting lines; 32. a rear connecting line; 33. a first included angle; 34. a second included angle; 35. a second axis of rotation; 36. a third rotation axis; 4. a front link; 5. a rear connecting rod; 6. a slider; 61. a damping member; 611. a first clamping portion; 612. a second clamping portion; 613. an open guide area; 7. a drive link;

8. pushing up a handle bar;

9. pushing down the handle bar.

Detailed Description

Preferred embodiments of the present utility model will be described in detail below with reference to the attached drawings so that the advantages and features of the present utility model can be more easily understood by those skilled in the art. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 to 8, the child stroller of the present embodiment has an unfolded operation position, a first folded operation position, and a second folded operation position. The baby stroller comprises a front wheel bracket 1, a front wheel assembly 11 arranged below the front wheel bracket 1, a rear wheel bracket 2 and a rear wheel assembly 21 arranged below the rear wheel bracket 2. The number of the front wheel bracket 1, the front wheel assembly 11, the rear wheel bracket 2 and the rear wheel assembly 21 is two and is symmetrically arranged left and right. The stroller further comprises a front link 4, a rear link 5, a slider 6 and a drive link 7. The stroller has two laterally symmetrical side frames, each comprising the front wheel support 1, the rear wheel support 2, the front link 4, the rear link 5, the slider 6 and the drive link 7. In this embodiment, only the structure of one side frame is described, and the structure and connection relationship of the other side frame are the same, which is not described again.

The upper end part of the rear wheel bracket 2 is pivotally connected with the upper end part of the front wheel bracket 1 around a first rotation axis 3; the front end part of the front connecting rod 4 is pivotally connected with the middle part of the front wheel bracket 1 around a second rotating axis 35, and the second rotating axis 35 is positioned below the first rotating axis 3 when the front wheel bracket is in the unfolding working position; the rear end part of the rear connecting rod 5 is pivotally connected with the middle part of the rear wheel bracket 2 around a third rotation axis 36, and when the rear wheel bracket is in the unfolding working position, the third rotation axis 36 is positioned below the first rotation axis 3, and the rear end part of the front connecting rod 4 is pivotally connected with the front end part of the rear connecting rod 5; the sliding piece 6 is slidably arranged on the rear connecting rod 5 along the front-rear direction of the rear connecting rod 5, in particular, the sliding piece 6 is a sliding sleeve sleeved on the rear connecting rod 5; one end of the drive link 7 is pivotally connected to the slider 6, the drive link 7 being capable of driving the slider 6 to slide forward along the rear link 5 when the stroller is switched from the unfolded operating position to the first folded operating position.

The front wheel bracket 1, the rear wheel bracket 2, the rear connecting rod 5 and the front connecting rod 4 form a first four-bar mechanism. When the stroller is in the first folded working position, the front wheel bracket 1 and the rear wheel bracket 2 are close to each other, the stroller can stand on the ground, and the whole stroller is supported by virtue of the front contact point 111 of the front wheel assembly 11 and the ground and the rear contact point 211 of the rear wheel assembly 21 and the ground. At the moment, the baby carriage can be conveniently stored and can stand on the ground without being easy to fall down. A virtual front connection line 31 is formed between the front contact point 111 and the first rotation axis 3, a virtual rear connection line 32 is formed between the rear contact point 211 and the first rotation axis 3, and a first included angle 33 as shown in fig. 3 is formed between the front connection line 31 and the rear connection line 32. More specifically, the front contact point 111 and the point P on the first rotation axis 3 (any point on the first rotation axis 3) constitute a virtual front connection line 31, and the rear contact point 211 and the point P on the first rotation axis 3 constitute a virtual rear connection line 32. Preferably, point P is the center point of the first rotational axis 3.

Further, a damper 61 is attached to the slider 6. When the stroller is in the first folded operative position, the damper 61 is in contact with the lower edge of the front link 4, but without compression. The stroller further has a second folded operating position, in which the lower edge of the front link 4 abuts against and presses the damping member 61, so that the damping member 61 is deformed, and a second included angle 34 is formed between the front connecting line 31 and the rear connecting line 32, as shown in fig. 6, and the second included angle 34 is smaller than the first included angle 33. The child stroller is also compact in structure, small in size, small in occupied space and convenient to transport.

More specifically, as shown in connection with fig. 9, the damper 61 includes a first clamping portion 611 and a second clamping portion 612 having elastic deformability, and rear end portions of the first clamping portion 611 and the second clamping portion 612 are fixedly connected or integrally formed with the slider 6. A gap is provided between the first clamping portion 611 and the second clamping portion 612. The damper 61 has an open operation state in which the first clamping portion 611 and the second clamping portion 612 open; in the closed operating state, the first clamping portion 611 and the second clamping portion 612 are closed. As shown in fig. 5, when the stroller is in the first folded operation position, the damper 61 is in the closed operation state, and the lower edge of the front link 4 is located in an opening guide area 613 formed between the front end portion of the first clamping portion 611 and the front end portion of the second clamping portion 612; as shown in fig. 8, in the second folded operating position, the lower edge of the front link 4 passes through the opening guide region 613, and at least a portion (e.g., the lower edge) of the front link 4 is inserted into the gap between the first clamping portion 611 and the second clamping portion 612, and the damper 61 is in an open operating state.

As shown in connection with fig. 1 to 3, the stroller further comprises an up-pushing handle bar 8 and a down-pushing handle bar 9. The upper end of the push-down handle bar 9 is pivotally connected to the middle lower portion of the push-up handle bar 8, and one of the lower end of the push-down handle bar 9, the upper end of the front wheel bracket 1, and the upper end of the rear wheel bracket 2 is pivotally connected to the other, and the third is pivotally connected to at least one of the other two. In the embodiment, one side of the upper end of the rear wheel bracket 2 is pivotally connected to the front wheel bracket 1, and the other side of the upper end of the rear wheel bracket 2 is pivotally connected to the lower end of the push-down handle bar 9.

The upper end of the driving connecting rod 7 is pivotally connected with the lower end of the push-up handle rod 8, the lower end of the driving connecting rod 7 is pivotally connected with the sliding piece 6, the driving connecting rod 7 is also pivotally connected with the rear wheel bracket 2, and the sliding piece 6, the driving connecting rod 7, the rear wheel bracket 2 and the rear connecting rod 5 form a second four-bar mechanism.

When the child stroller is switched from the unfolding working position to the first folding working position, the push-down handle bar 9, the driving connecting rod 7 and the front wheel bracket 1 are all rotated towards the rear wheel bracket 2 and are closed, the front connecting rod 4 and the rear connecting rod 5 are rotated upwards and are closed, and the sliding piece 6 slides forwards relative to the rear connecting rod 5. The cart can stand on the ground under the action of the front contact 111 and the rear contact 211, facilitating placement. When the first folding working position is converted to the second folding working position, a force is manually applied to the front wheel bracket 1, so that the front wheel bracket 1 drives the lower edge of the front connecting rod 4 to abut against and press the damping piece 61, the damping piece 61 is converted from the closed working state to the open working state until at least part of the front connecting rod 4 is inserted into a gap between the first clamping part 611 and the second clamping part 612, and at the moment, the front wheel bracket 1 and the rear wheel bracket 2, the front wheel assembly 11 and the rear wheel assembly 21 are closed again, so that the structure of the trolley is more compact and more beneficial to transportation.

As used in this specification and in the claims, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The term "and/or" as used herein includes any combination of one or more of the associated listed items.

It should be noted that the descriptions of the upper, lower, left, right, etc. used in the present utility model are merely with respect to the mutual positional relationship of the constituent elements of the present utility model in the drawings.

The above-described embodiments are provided for illustrating the technical concept and features of the present utility model, and are intended to be preferred embodiments for those skilled in the art to understand the present utility model and implement the same according to the present utility model, not to limit the scope of the present utility model. All equivalent changes or modifications made according to the spirit of the present utility model should be included in the scope of the present utility model.

Claims

1. A stroller having an unfolded operating position and a first folded operating position, comprising:

the method is characterized in that: the sliding piece is connected with a damping piece, and when the child stroller is at a first folding working position, the damping piece is contacted with the lower edge of the front connecting rod; the baby carriage is also provided with a second folding working position, when the baby carriage is in the second folding working position, the lower edge of the front connecting rod is abutted against the damping piece to enable the damping piece to deform, a second included angle is formed between the front connecting line and the rear connecting line, and the second included angle is smaller than the first included angle.

2. The stroller of claim 1, wherein: the sliding piece is a sliding sleeve sleeved on the rear connecting rod.

3. The stroller of claim 1, wherein: the damping piece comprises a first clamping part and a second clamping part with elastic deformation capability, the rear ends of the first clamping part and the second clamping part are connected with the sliding piece, and a gap is reserved between the first clamping part and the second clamping part; the damping piece is provided with an opening working state and a closing working state, and in the opening working state, the first clamping part and the second clamping part are opened; in the closed working state, the first clamping part and the second clamping part are closed; when the first folding working position is adopted, the damping piece is in a closed working state, and the lower edge of the front connecting rod is abutted against an opening guide area formed between the front end part of the first clamping part and the front end part of the second clamping part; when the second folding working position is adopted, the lower edge of the front connecting rod passes through the opening guide area, the front connecting rod is at least partially inserted into a gap between the first clamping part and the second clamping part, and the damping piece is in an open working state.

4. A stroller according to claim 3, wherein: the rear end parts of the first clamping part and the second clamping part are fixedly connected with the sliding piece.

5. The stroller of claim 1, wherein: the front end part of the front connecting rod is pivotally connected with the middle part of the front wheel bracket around the second rotating axis, and the rear end part of the rear connecting rod is pivotally connected with the middle part of the rear wheel bracket around the third rotating axis.

6. The stroller of claim 1, wherein: the child cart also comprises

Pushing up a handle bar;

the upper end part of the push-down handle rod is pivotally connected with the middle lower part of the push-up handle rod, and one of the lower end part of the push-down handle rod, the upper end part of the front wheel bracket and the upper end part of the rear wheel bracket is pivotally connected with the other part, and the third part is also pivotally connected with at least one of the other two parts;

the upper end of the driving connecting rod is pivotally connected with the lower end of the push-up handle rod, the lower end of the driving connecting rod is pivotally connected with the sliding part, the driving connecting rod is also pivotally connected with the rear wheel bracket, and the sliding part, the driving connecting rod, the rear wheel bracket and the rear connecting rod form a second four-bar mechanism.

7. The stroller of claim 6, wherein: one side of the upper end part of the rear wheel bracket is pivotally connected with the front wheel bracket, and the other side of the upper end part of the rear wheel bracket is pivotally connected with the lower end part of the push-down handle bar.