CN108839705B

CN108839705B - Child cart

Info

Publication number: CN108839705B
Application number: CN201810526638.7A
Authority: CN
Inventors: 黄益明; 张金鑫
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2023-10-31
Anticipated expiration: 2038-05-29
Also published as: CN108839705A

Abstract

The invention discloses a child stroller, which comprises a stroller frame with an unfolding state and a folding state, a front wheel assembly arranged at the front part of the stroller frame bottom, a rear wheel assembly arranged at the rear part of the stroller frame bottom, and a locking mechanism for locking the stroller frame in the unfolding state.

Description

Child cart

Technical Field

The invention relates to a child stroller.

Background

The existing child cart mostly adopts the folding of the frame to reduce the storage volume of the cart, and a cart user increasingly hopes that the folded child cart is as small as possible, so that the folding structure of the existing child cart is more and more complex, and the folded volume of the frame is reduced as much as possible. However, the folding structure is too complicated, so that the folding and the use of the stroller are more and more complicated and inconvenient.

Therefore, there is a need for a child stroller that is simple in structure, easy to use, and has a flat overall frame after folding.

Disclosure of Invention

The invention aims to provide a flat baby stroller with a simple structure after folding.

In order to achieve the above purpose, the invention adopts the following technical scheme: the baby stroller comprises a frame with an unfolding state and a folding state, a front wheel assembly arranged at the front part of the frame bottom, a rear wheel assembly arranged at the rear part of the frame bottom, and a locking mechanism used for locking the frame in the unfolding state, wherein the frame comprises two groups of side supports positioned at the left side and the right side of the baby stroller, each side of the side supports comprises a front wheel support, a rear wheel support, a push rod, a basket rod, a swinging rod, a sitting rod and a connecting rod, the upper part of the rear wheel support is pivoted with the upper part of the front wheel support, the lower part of the push rod is pivoted with the upper part of the front wheel support, the front part of the sitting rod can relatively rotate and relatively slide along the length direction of the front wheel support or the rear wheel support, the front part of the basket rod is pivoted with the lower part of the front wheel support, the lower part of the basket rod is pivoted with the rear wheel support, the swinging rod is pivoted with the lower part of the basket, the upper part of the swinging rod is pivoted with the rear wheel support, and the two side supports are folded towards the front wheel support and the two ends of the push rod.

Preferably, the front part of the sitting rod is provided with an adapter, the sitting rod is connected with the adapter in a relatively sliding manner along the length direction of the sitting rod, and the adapter is pivotally connected to the upper part of the front wheel bracket or the upper part of the rear wheel bracket.

Further preferably, the front wheel bracket includes a body portion connected to the front wheel assembly and a joint member fixedly provided at an upper end portion of the body portion, an upper end portion of the joint member is rotatably connected to a lower end portion of the push rod, and the adapter member is pivotally connected to a lower end portion of the joint member.

Further preferably, the adapter has a through hole in which the front portion of the seat post is slidably inserted.

Further preferably, the upper portion of the front wheel bracket, the upper portion of the rear wheel bracket, and the adapter are pivotally connected together by a first axle.

Further preferably, the upper part of the front wheel bracket is pivotally connected with the lower part of the push rod through a second shaft, and the first shaft is positioned below the second shaft.

Preferably, when the frame is in a unfolded state, the front wheel bracket and the push rod on the same side extend along the same length direction, and a triangle structure is formed among the front wheel bracket, the push rod, the sitting rod and the connecting rod.

Preferably, the swing rod is connected with the rear wheel bracket through a third shaft pivot, the upper part of the swing rod is connected with the sitting rod through a fourth shaft pivot, the lower part of the swing rod is connected with the basket rod through a fifth shaft pivot, and the fifth shaft and the fourth shaft are respectively positioned at the front side and the rear side of the rear wheel bracket.

Preferably, the basket rod and the sitting rod are of a U-shaped rod structure, and the side brackets on two sides are connected with the sitting rod through the basket rod.

Preferably, the front wheel bracket, the rear wheel bracket, the swing rod and the basket rod form a four-bar linkage mechanism.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:

1. the frame is simple, comfortable and attractive in arrangement, and after being folded, the lower part of the front wheel bracket, the lower part of the rear wheel bracket and the upper end part of the push rod are close to each other, so that the frame is small in size and flat;

2. the frame disclosed by the invention can be folded or unfolded only by operating the push rod to rotate downwards or upwards, and is convenient to operate and use.

Drawings

FIG. 1 is a perspective view of a child stroller in an expanded state according to the present invention;

FIG. 2 is a side view of the stroller of the present invention in an expanded state;

FIG. 3 is a side view of the stroller of the present invention during deployment and folding;

FIG. 4 is a side view of the child stroller of the present invention in a collapsed condition;

fig. 5 is a perspective view of the child stroller of the present invention in a collapsed configuration.

In the above figures: 11. a front wheel assembly; 12. a rear wheel assembly; 2. a front wheel bracket; 3. a rear wheel bracket; 4. a push rod; 5. a basket bar; 6. swing rod; 7. an adapter; 8. a sitting rod; 9. a connecting rod; 101. a first shaft; 102. a second shaft; 103. a third shaft; 104. a fourth shaft; 105. a fifth shaft; 106. and a sixth axis.

Detailed Description

The invention is further described below with reference to an embodiment shown in the drawings in which:

referring to fig. 1, a stroller comprises a frame having an unfolded state and a folded state, a front wheel assembly 11 arranged at the front part of the bottom of the frame, a rear wheel assembly 12 arranged at the rear part of the bottom of the frame, and a locking mechanism for locking the frame in the unfolded state, wherein the frame comprises two groups of side brackets positioned at the left side and the right side of the stroller, and each side bracket comprises a front wheel bracket 2, a rear wheel bracket 3, a push rod 4, a basket rod 5, a swing rod 6, a sitting rod 8 and a connecting rod 9.

In this embodiment, the upper part of the rear wheel support 3 is pivotally connected to the front wheel support 2, the lower part of the push rod 4 is pivotally connected to the upper part of the front wheel support 2, the front part of the seat rod 8 is relatively rotatable and slidably connected to the front wheel support 2 or the rear wheel support 3 along the length direction thereof, the front part of the basket rod 5 is pivotally connected to the lower part of the front wheel support 2, the swing rod 6 is pivotally connected to the rear wheel support 3, the lower part of the swing rod 6 is pivotally connected to the basket rod 5, the upper part is pivotally connected to the rear part of the seat rod 8, the two ends of the connecting rod 9 are pivotally connected to the push rod 4 and the seat rod 8, respectively, and when the frame is folded, the push rod 4 is turned backward and folded to the rear side of the rear wheel support 3, and the front wheel support 2 and the rear wheel support 3 are drawn close in the front-rear direction. The front wheel bracket 2, the rear wheel bracket 3, the swinging rod 6 and the basket rod 5 form a four-bar linkage mechanism, so that the front wheel bracket 2 and the rear wheel bracket 3 are driven to be folded or unfolded through the rotation between the swinging rod 6 and the rear wheel bracket 3.

Specifically, the front part of the seat post 8 is provided with an adapter 7, and the seat post 8 is connected to the adapter 7 in a relatively sliding manner along the length direction thereof, and the adapter 7 is pivotally connected to the upper part of the front wheel bracket 2 or to the upper part of the rear wheel bracket 3. The front wheel bracket 2 comprises a body part 21 connected with the front wheel assembly 11 and a joint piece 22 fixedly arranged at the upper end part of the body part 21, the upper end part of the joint piece 22 is rotationally connected with the lower end part of the push rod 4, and the lower end part of the joint piece 22 is rotationally connected with the adapter piece 7.

Referring to fig. 2 to 4, the adapter 7 has a through hole in which the front portion of the seat post 8 is slidably inserted. The upper part of the front wheel bracket 2 is pivotally connected to the upper part of the rear wheel bracket 3 via a first shaft 101, and the adapter 7 is rotatably connected to the front wheel bracket 2 or the rear wheel bracket 3 via the first shaft 101. The upper part of the front wheel bracket 2 is pivotally connected with the lower part of the push rod 4 through a second shaft 102, the lower part of the connecting rod 9 is rotatably connected with the middle part of the sitting rod 8 around a third shaft 103, and the first shaft 101 is positioned below the second shaft 102, so that the folding efficiency between the rear wheel bracket 3 and the push rod 4 is improved.

Referring to fig. 2, when the frame is in a unfolded state, the front wheel bracket 2 and the push rod 4 on the same side extend along the same length direction, and a triangle structure is formed among the front wheel bracket 2, the push rod 4, the seat rod 8 and the connecting rod 9 so as to provide stable support when the frame is unfolded.

The swing rod 6 is pivotally connected with the rear wheel bracket 3 through a third shaft 103, the upper part of the swing rod 6 is pivotally connected with the sitting rod 8 through a fourth shaft 104, the lower part of the swing rod 6 is pivotally connected with the basket rod 5 through a fifth shaft 105, and the fifth shaft 105 and the fourth shaft 104 are respectively positioned on the front side and the rear side of the rear wheel bracket 3.

Referring to fig. 1 or 5, in the present embodiment, the front wheel bracket 2 and the basket bar 5 are pivotally connected through a sixth shaft 106, which is a cross bar connecting the front wheel brackets 2 on both sides, the front end portion of the basket bar 5 is rotatably connected to the cross bar, and the basket bars 5 on both sides are located at the inner sides of the front wheel bracket 2, and simultaneously, the basket bar 5 and the seat bar 8 are both U-shaped bar structures, and the side brackets on both sides are connected through the basket bar 5 and the seat bar 8, and the two sets of side brackets in the present embodiment are connected through the sixth shaft 106, the basket bar 5, the seat bar 8, and the cross bar between the rear wheel brackets 3.

When the frame is in a unfolding state, the front wheel bracket 2 and the push rod 4 extend along the same length direction; when the frames need to be folded, the push rod 4 is pushed to rotate backwards along the second shaft 102 and close to the front wheel bracket 2, the connecting rod 9 and the sitting rod 8 are close to each other, and the sitting rod 8 slides backwards from the adapter 7; the sitting rod 8 drives the swinging rod 6 to draw close to the rear wheel bracket 3, and the swinging rod 6 drives the basket rod 5 to draw close to the front wheel bracket 2, so that folding is completed. When the frame needs to be unfolded, the push rod 4 is pulled to rotate upwards to reversely complete the unfolding, and the frame is folded and unfolded in the embodiment in a simpler and more convenient operation mode.

When the frame is in a folded state, as shown in fig. 4 and 5, the lower part of the front wheel bracket 2, the lower part of the rear wheel bracket 3 and the upper end part of the push rod 4 are close to each other, so that the frame is small in size and flat, and has high folding efficiency.

The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.

Claims

1. The utility model provides a children's shallow, includes that have expansion state and folding state's frame, locate the anterior front wheel subassembly of frame bottom, locate the rear wheel subassembly of frame bottom rear portion, be used for with the locking mechanical system of frame under the expansion state, the frame is including being located two sets of side brackets of children's shallow left and right sides, its characterized in that: each side support comprises a front wheel support, a rear wheel support, a push rod, a basket rod, a swing rod, a sitting rod and a connecting rod, wherein the upper part of the rear wheel support is in pivot connection with the front wheel support, the lower part of the push rod is in pivot connection with the upper part of the front wheel support, the front part of the sitting rod can relatively rotate and relatively slide along the length direction of the sitting rod to be connected with the front wheel support or the rear wheel support, the front part of the basket rod is in pivot connection with the lower part of the front wheel support, the swing rod is in pivot connection with the rear wheel support, the lower part of the swing rod is in pivot connection with the basket rod, the upper part of the swing rod is in pivot connection with the rear part of the sitting rod, the two ends of the connecting rod are respectively in pivot connection with the push rod and the sitting rod, and when the frame is folded, the push rod is backwards overturned and folded to the rear side of the rear wheel support, and the front wheel support is folded with the rear wheel support along the front and rear direction.

2. A stroller according to claim 1, wherein: the front part of the sitting rod is provided with an adapter, the sitting rod is connected with the adapter in a relatively sliding manner along the length direction of the sitting rod, and the adapter is pivotally connected to the upper part of the front wheel bracket or the upper part of the rear wheel bracket.

3. A stroller according to claim 2, wherein: the front wheel support comprises a body part connected with the front wheel assembly and a connector part fixedly arranged at the upper end part of the body part, the upper end part of the connector part is rotationally connected with the lower end part of the push rod, and the adapter part is pivotally connected to the lower end part of the connector part.

4. A stroller according to claim 2, wherein: the adapter has a through hole in which the front portion of the seat post slidably passes.

5. A stroller according to claim 2, wherein: the upper part of the front wheel bracket, the upper part of the rear wheel bracket and the adapter are connected together through a first shaft pivot.

6. A stroller in accordance with claim 5, wherein: the upper part of the front wheel bracket is connected with the lower part of the push rod through a second shaft pivot, and the first shaft is positioned below the second shaft.

7. A stroller according to claim 1, wherein: when the frame is in a unfolding state, the front wheel bracket and the push rod on the same side extend along the same length direction, and a triangle structure is formed among the front wheel bracket, the push rod, the sitting rod and the connecting rod.

8. A stroller according to claim 1, wherein: the swing rod is connected with the rear wheel bracket through a third shaft pivot, the upper part of the swing rod is connected with the sitting rod through a fourth shaft pivot, the lower part of the swing rod is connected with the basket rod through a fifth shaft pivot, and the fifth shaft and the fourth shaft are respectively positioned on the front side and the rear side of the rear wheel bracket.

9. A stroller according to claim 1, wherein: the basket rod and the sitting rod are of U-shaped rod structures, and side brackets on two sides are connected with the sitting rod through the basket rod.

10. A stroller according to claim 1, wherein: the front wheel support, the rear wheel support, the swing rod and the basket rod form a four-bar linkage mechanism.