CN220639984U

CN220639984U - Child cart

Info

Publication number: CN220639984U
Application number: CN202321510043.5U
Authority: CN
Inventors: 胡扣贞; 谭业鹏
Original assignee: Kunshan Aisibeier Children's Products Co ltd
Current assignee: Kunshan Aisibeier Children's Products Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-03-22
Anticipated expiration: 2033-06-14

Abstract

A stroller, the frame of which comprises: the front wheel support, the upper portion of the front wheel support is fixed with the sliding piece, the inferior part of the front wheel support has front wheel assemblies; the upper part of the rear wheel bracket is pivotally connected with the upper part of the front wheel bracket, and the lower part of the rear wheel bracket is provided with a rear wheel assembly; the push rod and the sliding piece are arranged in a sliding way along the up-down direction; the front part of the connecting rod is pivotally connected with the lower part of the push rod, and the rear part of the connecting rod is pivotally connected with the rear wheel bracket. That is, the push rod slides through the front wheel bracket, so that a connection relation which can slide and rotate is generated relative to the rear wheel bracket, and a deformable triangle mechanism is formed among the push rod, the front wheel bracket, the rear wheel bracket and the connecting rod piece. The whole car is folded, the top of the push rod is still upwards after folding, the unfolding and folding operations of a user are all convenient, and the operation experience is more comfortable. The whole frame has simple structure and compact shape. After the unfolding position is locked, the triangle relationship formed by the front wheel support, the rear wheel support and the connecting rod piece is unfolded more stably.

Description

Child cart

Technical Field

The utility model belongs to the field of household articles, and particularly relates to a child cart.

Background

The baby stroller is an indispensable product in the growth process of babies. The child cart is generally collapsible for portability. The utility model provides a children's shallow frame as disclosed in the bulletin CN219115538U of authorizing, including the front leg, through first axis pivoted back leg, through second axis pivoted vaulting pole subassembly, through the supporting seat of third axis pivoted connection, still including setting up the linkage subassembly between vaulting pole subassembly, front leg and back leg, can make front leg and back leg expand fixedly when the linkage subassembly locking state, the unblock is with the relative front leg of vaulting pole subassembly rotate the time of folding up drive back leg and also rotate the folding up forward leg. The whole car outward appearance is succinct, but the linkage subassembly relates to a front leg, a vaulting pole subassembly, controls two rear legs, and four parts altogether lock or unlock simultaneously these four parts, and the mechanism is complicated relatively, and assembly production is troublesome, and the top of vaulting pole subassembly is down after folding moreover, and in the unfolding folding process, user operation experience is relatively poor.

Disclosure of Invention

The utility model aims to provide a child cart.

In order to solve the technical problems, the utility model adopts the following technical scheme: a stroller having a frame, a front wheel assembly, a rear wheel assembly, a frame locking mechanism, in a deployed position and a stowed position, the frame comprising: a front wheel bracket, wherein a sliding piece is fixed at the upper part of the front wheel bracket, and the front wheel assembly is arranged at the lower part of the front wheel bracket; the upper part of the rear wheel bracket is in pivot connection with the upper part of the front wheel bracket, and the rear wheel assembly is arranged at the lower part of the rear wheel bracket; the push rod and the sliding piece are arranged in a sliding manner along the up-down direction; and the front part of the connecting rod piece is pivotally connected with the lower part of the push rod, and the rear part of the connecting rod piece is pivotally connected with the rear wheel bracket. That is, the push rod slides through the front wheel bracket, so that a connection relation which can slide and rotate is generated relative to the rear wheel bracket, and a deformable triangle mechanism is formed among the push rod, the front wheel bracket, the rear wheel bracket and the connecting rod piece.

In some embodiments, the rear wheel support comprises a left rear wheel support and a right rear wheel support, the left rear wheel support and the right rear wheel support are respectively provided with the rear wheel assembly at the lower part, the left rear wheel support extends upwards from the upper part to form a left side seat frame, and the right rear wheel support extends upwards from the upper part to form a right side seat frame.

In some embodiments, the front wheel support is a single, and is located at a left-right central position of the frame, the upper parts of the left seat frame and the right seat frame are respectively and rotatably connected with the left side part and the right side part of the upper part of the front wheel support, and the front wheel assembly is arranged at the lower part of the front wheel support.

In some embodiments, the connecting rod piece is V-shaped, the most concave part is located at the front part and pivotally connected with the lower part of the push rod, and the two ends are respectively located at the rear part and pivotally connected with the left rear wheel bracket and the right rear wheel bracket.

In some embodiments, a vehicle bag is bound between the left rear wheel bracket and the right rear wheel bracket.

In some embodiments, the sliding piece is a sliding sleeve fixed on the upper part of the front wheel bracket, and the single push rod can be inserted in the sliding sleeve in an up-and-down sliding manner.

In some embodiments, the push rod portion extends in a left-right direction and then extends forward to form a left push handle and a right push handle, and a space for installing seat pockets is formed between the left push handle and the right push handle and between the left seat frame and the right seat frame.

In some embodiments, the frame locking mechanism is disposed between the push rod lower portion and the slider.

In some embodiments, the pivotal connection of the rear wheel bracket to the front wheel bracket is located forward of the push rod.

The scope of the present utility model is not limited to the specific combination of the above technical features, but also covers other technical features formed by any combination of the above technical features or their equivalents. Such as those described above, and those disclosed in the present application (but not limited to) having similar functions, are replaced with each other.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages: the utility model provides a novel child stroller with a folding principle, which has the following advantages:

1. the push rod, the front wheel support and the rear wheel support form a deformable triangle mechanism through the connecting rod piece, the whole frame can be locked only by locking between two parts in any rotation relation or between two parts in sliding relation on the triangle mechanism, the mode of the frame locking mechanism can be processed more simply, and the triangle relation is unfolded more stably after the frame locking mechanism is locked;

2. under the unfolding position of the trolley, the push rod stretches upwards relative to the front wheel support, the connecting rod piece is close to the rotating connection position of the front wheel support and the rear wheel support, and the whole trolley is compact in shape;

3. under the folding position of the trolley, the push rod falls downwards relative to the front wheel support, the triangular mechanism is deformed, the rear wheel support is close to the front wheel support, the top of the push rod is still upwards after folding, the unfolding and folding operations of a user are all convenient, and the operation experience is more comfortable.

Drawings

FIG. 1 is a schematic perspective view of a stroller in a deployed position (first embodiment);

FIG. 2 is a schematic underside view of a stroller in a deployed position (first embodiment);

FIG. 3 is a schematic perspective view of a child stroller in a collapsed position (first embodiment);

FIG. 4 is a schematic underside view of the stroller in a collapsed position (first embodiment);

FIG. 5 is a schematic diagram of a stroller frame mechanism (second embodiment);

wherein 1, a front wheel bracket; 1a, a sliding piece; 2. a rear wheel bracket; 21. a left rear wheel bracket; 22. a right rear wheel bracket; 31. a left seat frame; 32. a right seat frame; 4. a push rod; 4a, a left push handle; 4b, right push handle; 5. a link member; 6. a front wheel assembly; 7. a rear wheel assembly 8, a seat pocket; 9. a vehicle bag; x1; a first shaft; x2; a second shaft; x3; and a third axis.

Detailed Description

1-4, a stroller has a frame in a deployed position and a stowed position, a front wheel assembly 6, a rear wheel assembly 7, and a frame locking mechanism to lock the frame in the deployed position.

The frame includes:

the front wheel support 1 is a single front wheel support 1 and is positioned at the left and right central positions of the frame, a sliding piece 1a is fixed at the upper part of the front wheel support 1, the sliding piece 1a is a sliding sleeve, and the central line of the sliding sleeve extends along the up and down direction;

the rear wheel bracket 2 comprises a left rear wheel bracket 21 and a right rear wheel bracket 22, wherein the left rear wheel bracket 21 and the right rear wheel bracket 22 are respectively positioned at two sides of the single-leg front wheel bracket 1, the upper parts of the left rear wheel bracket 21 and the right rear wheel bracket 22 are respectively connected with the left and right side parts of the upper part of the front wheel bracket 1 around a first shaft pivot, and the lower parts of the left rear wheel bracket and the right rear wheel bracket are respectively provided with a rear wheel assembly 7;

the push rod 4 is a single push rod 4 and can be inserted in the sliding part 1a in a vertically straight sliding way, a blocking part for preventing the push rod 4 from being separated from the sliding sleeve upwards is arranged at the lower part of the push rod 4, an included angle a is formed between the sliding direction of the push rod 4, namely the central line direction of the sliding sleeve and the front wheel bracket 1, and the included angle a is 20-40 degrees, such as 32 degrees in the embodiment, so that the push rod can well control the following connecting rod piece 5 in the frame folding process, thereby driving the rear wheel bracket 2 to be close to the front wheel bracket 1 and enabling the folded front and rear wheels to be flatter;

the connecting rod piece 5 is a V-shaped connecting rod, the most concave part is positioned at the front part and the lower part of the push rod 4 and is connected with the corresponding left rear wheel support 21 and right rear wheel support 22 around a second shaft pivot, and the two end parts are respectively connected with the corresponding left rear wheel support 21 and right rear wheel support 22 around a third shaft pivot, so that the left rear wheel support 21 and the right rear wheel support 22 form synchronous rotation relative to the front wheel support 1, and a bicycle bag 9 is bound between the left rear wheel support 21 and the right rear wheel support 22;

the front wheel assembly 6 is arranged at the lower part of the front wheel bracket 1, and the rear wheel assemblies 7 are respectively arranged at the lower parts of the left rear wheel bracket 21 and the right rear wheel bracket 22.

In this embodiment, as shown in fig. 1-3, the single push rod 4 is a telescopic rod, and a telescopic positioning mechanism is arranged between the two push rods, so that a user can adjust the telescopic rod to a proper height in a unfolding position. The frame locking mechanism of this embodiment is also disposed between the lower portion of the push rod 4 and the sliding member 1a, i.e., the sliding sleeve. The push rod 4 and the sliding piece 1a are locked in a sliding way, namely, the whole vehicle frame is locked in a triangular stable state, and the structure is simple and the manufacturing is convenient.

The principle of the telescopic positioning mechanism and the principle of the frame locking mechanism are the same, and the telescopic positioning mechanism and the principle of the frame locking mechanism are not the main points of the scheme, so that the telescopic positioning mechanism and the frame locking mechanism are applicable to the frame locking mechanism as long as the mechanism can lock two sliding pipes, for example, the frame locking mechanism is provided with an elastic locking piece in a rotating or sliding way on a sliding sleeve, the lower part of a push rod is provided with a lock hole, when one end part of the elastic locking piece is inserted into the lock hole, the sliding sleeve and the push rod are locked, a spring which is stably inserted into the lock hole is arranged between the elastic locking piece and the sliding sleeve, and the elastic locking piece is pressed against the spring to be separated from the lock hole, so that the frame can be unlocked.

The top of the push rod 4 extends in the left-right direction and then extends forwards to form a left push handle 4a and a right push handle 4b. The left rear wheel bracket 21 continues to extend upward from the upper portion to form a left side seat frame 31, and the right rear wheel bracket 22 continues to extend upward from the upper portion to form a right side seat frame 32. The left push handle 4a, the right push handle 4b, the left seat frame 31 and the right seat frame 32 are respectively provided with four corners of the seat pocket 8 at the end parts.

When folding, as shown in fig. 2 and 4, the telescopic positioning mechanism of the push rod 4 is unlocked, the push rod 4 is contracted to the shortest, the frame locking mechanism is unlocked, the push rod 4 is continuously pressed down, in the pressing process, the connecting rod piece 5 is driven, the angle between the connecting rod piece 5 and the push rod 4 is reduced and is relatively closed, the rear wheel support 2 is also closed relative to the lower part of the push rod 4, and is also closed relative to the front wheel support 1, namely, the front wheel assembly 6 and the rear wheel assembly 7 are closed, the left seat frame 31 and the right seat frame 32 above are closed relative to the upper part of the push rod 4, the whole bicycle is folded, the bottom of the folded push rod 4 can touch the ground, the front wheel assembly and the rear wheel assembly are combined, the self-standing effect is generated, the top is still upward, the unfolding and folding operation of a user is convenient, and the operation experience is more comfortable. The whole frame has simple structure and compact shape. On the contrary, the frame is required to be unfolded, only the push rod 4 is required to be pulled upwards, under the deformation effect of the triangular mechanism, the left rear wheel support 21 and the right rear wheel support 22 are synchronously unfolded back and forth relative to the front wheel support 1, the left seat frame 31 and the right seat frame 32 are synchronously unfolded back and forth relative to the push rod 4, the push rod 4 is pulled upwards to the limit, the frame locking mechanism is automatically locked under the effect of the spring, and the length of the push rod 4 is adjusted to a proper height position, so that the frame can be used. The triangle formed by the front wheel bracket, the rear wheel bracket, the link member and the push rod is more stable in unfolding.

As shown in fig. 5, the second embodiment is different from the first embodiment in that: the pivot first axis X1 of the rear wheel bracket 2 and the front wheel bracket 1 is located on the front side of the push rod 4. The problem that the left side pushing handle 4a and the right side pushing handle 4b are possibly interfered with the left side seat frame 31 and the right side seat frame 32 which are closed to influence folding in the frame folding process is better avoided, so that the folding is smoother, and the volume is smaller after the folding.

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

Claims

1. A child stroller having a frame, a front wheel assembly (6), a rear wheel assembly (7), and a frame locking mechanism in an extended position and a retracted position, characterized in that: the frame comprises:

a front wheel bracket (1), wherein a sliding piece (1 a) is fixed at the upper part of the front wheel bracket (1), and the front wheel assembly (6) is arranged at the lower part of the front wheel bracket (1);

the rear wheel support (2), the upper part of the rear wheel support (2) is in pivot connection with the upper part of the front wheel support (1), and the rear wheel assembly (7) is arranged at the lower part of the rear wheel support (2);

a push rod (4), wherein the push rod (4) and the sliding piece (1 a) are arranged in a sliding manner along the up-down direction;

and the front part of the connecting rod piece (5) is pivotally connected with the lower part of the push rod (4), and the rear part of the connecting rod piece (5) is pivotally connected with the rear wheel bracket (2).

2. The stroller of claim 1, wherein: the rear wheel support (2) comprises a left rear wheel support (21) and a right rear wheel support (22), the left rear wheel support (21) and the right rear wheel support (22) are respectively arranged at the lower parts of the rear wheel assembly (7), the left rear wheel support (21) extends upwards from the upper part to form a left seat frame (31), and the right rear wheel support (22) extends upwards from the upper part to form a right seat frame (32).

3. The stroller of claim 2, wherein: the front wheel support (1) is a single one and is positioned at the left and right central positions of the frame, the upper part of the left seat frame (31) and the upper part of the right seat frame (32) are respectively and rotatably connected with the left and right side parts of the upper part of the front wheel support (1), and the lower part of the front wheel support (1) is provided with the front wheel assembly (6).

4. A stroller according to claim 3, wherein: the connecting rod piece (5) is V-shaped, the foremost concave part is positioned at the front part and is in pivot connection with the lower part of the push rod (4), and the two ends are respectively in pivot connection with the left rear wheel bracket (21) and the right rear wheel bracket (22) at the rear part.

5. The stroller of claim 4, wherein: a vehicle bag (9) is bound between the left rear wheel bracket (21) and the right rear wheel bracket (22).

6. A stroller according to claim 3, wherein: the sliding piece (1 a) is a sliding sleeve fixed on the upper portion of the front wheel support (1), and a single push rod (4) can be inserted in the sliding sleeve in an up-and-down sliding mode.

7. The stroller of claim 6, wherein: the top of the push rod (4) extends leftwards and rightwards respectively and then extends forwards to form a left push handle (4 a) and a right push handle (4 b), and a space for installing seat pockets is formed between the left push handle (4 a), the right push handle (4 b), the left seat frame (31) and the right seat frame (32).

8. The stroller of claim 1, wherein: the frame locking mechanism is arranged between the lower part of the push rod (4) and the sliding piece (1 a).

9. The stroller of claim 1, wherein: the pivot connection part of the rear wheel bracket (2) and the front wheel bracket (1) is positioned at the front side of the push rod (4).