Baby stroller

Abstract

The utility model discloses a child stroller which comprises a front supporting leg (1), a front wheel frame (2) connected to the lower end of the front supporting leg (1), front wheels (3) connected to the front wheel frame (2), a sliding piece (4) arranged on the front supporting leg (1) and capable of sliding relative to the front supporting leg (1), a rear supporting leg (5) hinged to the sliding piece (4) around a first axis (A), a rear wheel frame (6) connected to the lower end of the rear supporting leg (5), and rear wheels (7) connected to the rear wheel frame (6). A push rod assembly (8) is hinged to the upper end of the front supporting leg (1) around a second axis (B), a linkage rod (9) which is hinged to the push rod assembly (8) and the rear supporting leg (5) and can drive the rear supporting leg (5) to rotate and fold relative to the front supporting leg (1) when the push rod assembly (8) rotates and folds relative to the front supporting leg (1) is arranged between the push rod assembly (8) and the rear supporting leg (5), and the stroller further comprises a seat assembly (10). The folding chair is simple in structure, convenient to fold and operate and small in size after being folded.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of children's pushchair. BACKGROUND

[0002] Children's pushchair is common product in the growth process of baby. Now children's pushchair generally can be unfolded or folded, in unfolded state, it is for children to travel, and in folded state, it is convenient to store or carry. The structure of children's pushchair on the market is not the same, various, many children's pushchair still has large volume after folding, leading to inconvenient to carry, store and occupy large space.

[0003] Therefore, the utility model is just based on the above insufficiency and generates. CONTENT OF UTILITY MODEL

[0004] The utility model aims at overcoming the insufficient of prior art, provide a kind of children's pushchair, simple structure, folding operation is convenient, and the volume of folding is small.

[0005] The utility model is realized through the following technical schemes:

[0006] A kind of children's pushchair, it can be moved from unfolded state to folded state after the unlocking of locking device, including front support leg, the lower end of the front support leg is connected with front wheel frame, the front wheel frame is connected with front wheel, the front support leg is equipped with the sliding member that can slide relative to it, the sliding member is hinged with rear support leg around first axis line, the lower end of the rear support leg is connected with rear wheel frame, the rear wheel frame is connected with rear wheel, the upper end of the front support leg is hinged with push rod assembly around second axis line, the push rod assembly and rear support leg are equipped with linkage rod, which is hinged with both and can drive rear support leg to rotate and fold relative to front support leg when push rod assembly rotates and folds relative to front support leg, the children's pushchair further includes seat assembly that can be folded when push rod assembly rotates and folds relative to front support leg.

[0007] The front support leg is hinged with diagonal strut around third axis line, the seat assembly includes flexible foldable seat pocket, the upper end of the push rod assembly is equipped with forwardly extending handle, the upper end of the seat pocket is connected with handle by first pull rope, the front end of the lower part of the seat pocket is connected with diagonal strut, the rear end of the lower part of the seat pocket is connected with push rod assembly by second pull rope, when children's pushchair is in unfolded state, the seat pocket exerts pulling force on the upper end of diagonal strut to make diagonal strut unfold relative to front support leg.

[0008] When children's pushchair is in unfolded state, the projection of the front support leg, rear support leg and push rod assembly on vertical plane encloses triangle.

[0009] The linkage rod is L-shaped and comprises a first rod body and a second rod body, the first rod body extends along the push rod assembly, the second rod body extends along the rear support leg, the first rod body is hinged to the push rod assembly about a fourth axis, and the second rod body is hinged to the rear support leg about a fifth axis.

[0010] The push rod assembly comprises a lower push rod and an upper push rod capable of being telescopically extended relative to the lower push rod, the lower push rod is connected to the front support leg and the linkage rod, the second pull rope is hung on a hook on the lower push rod, and the handle is connected to the upper end of the upper push rod.

[0011] The lower side of the front support leg is provided with a sliding groove, the sliding member comprises a body, the upper end of the body is provided with two protruding sliding bodies capable of slidingly matching the lower groove wall of the sliding groove, and the lower end of the body is provided with two protruding hinging bodies capable of being hinged to the rear support leg.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. When the utility model is folded, the push rod assembly rotates relative to the front support leg and approaches the front support leg, in this process, the push rod assembly drives the rear support leg to rotate relative to the sliding member through the linkage rod and makes the sliding member slide downward along the front support leg, thereby realizing that the rear support leg also rotates relative to the front support leg and approaches the front support leg, and in this process, the seat assembly also approaches the front support leg for folding.

[0014] 2. When the utility model is unfolded, the seat pocket exerts a pulling force on the diagonal support rod and makes the diagonal support rod unfold relative to the front support leg, and when the utility model is folded, the push rod assembly rotates relative to the front support leg and approaches, the handle at the upper end of the push rod assembly approaches the lower end of the front support leg, at this time, the first pull rope and the seat pocket become slack, and the diagonal support rod rotates relative to the front support leg and approaches the front support leg, thereby realizing the folding of the diagonal support rod and the seat assembly.

DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a side view of the utility model;

[0016] Figure 2 is one of the utility model's perspective views after removing the seat assembly;

[0017] Figure 3 is the second perspective view of the utility model after removing the seat assembly;

[0018] Figure 4 is a folding process schematic view of the utility model after removing the seat assembly.

[0019] Figure 5 is the folding state schematic diagram after removing the seat component of the utility model;

[0020] Figure 6 is the perspective view of the part of the utility model;

[0021] Figure 7 is the perspective view of the sliding member of the utility model.

CONCRETE IMPLEMENTATION

[0022] The utility model will be further described in connection with the drawings:

[0023] As Figures 1 to 5 shown, a kind of child stroller, after locking device is unlocked, it can be moved from unfolded state to folding state, including front support leg 1, the lower end of the front support leg 1 is connected with front wheel frame 2, front wheel frame 2 extends horizontally, front wheel 3 is connected on the both sides of the front wheel frame 2, the sliding member 4 that can slide relative to it is equipped on the front support leg 1, two rear support legs 5 are hinged on the sliding member 4 around first axis A, the lower end of the rear support leg 5 is connected with the rear wheel frame 6 that extends horizontally, rear wheel 7 is connected on the both sides of the rear wheel frame 6, the upper end of the front support leg 1 is hinged with push rod assembly 8 around second axis B, the linkage rod 9 that is hinged with both and can drive rear support leg 5 relative to front support leg 1 rotation folding when push rod assembly 8 is folded relative to front support leg 1 is equipped between push rod assembly 8 and rear support leg 5, the child stroller further includes seat component 10 that can be folded when push rod assembly 8 is folded relative to front support leg 1. When folding, push rod assembly 8 is rotated relative to front support leg 1 and approaches front support leg 1, in this process, push rod assembly 8 drives rear support leg 5 to rotate relative to sliding member 4 by linkage rod 9 and makes sliding member 4 slide down along front support leg 1, to realize that rear support leg 5 also rotates relative to front support leg 1 and approaches to front support leg 1 on front support leg 1, and, in this process, seat component 10 also follows folding and approaches to front support leg 1 on front support leg 1. Whole child stroller structure is simple and compact, folding operation is convenient and fast, just need to rotate forward push rod assembly 8, after folding, small in size, convenient for carrying or storing.

[0024] As Figure 1As shown, the front support leg 1 is hinged with a diagonal strut 11 around the third axis C, the seat assembly 10 comprises a flexible and foldable seat pocket 101 which can be made of flexible cloth by sewing. The upper end of the push rod assembly 8 is provided with a forward extending handle 12, the upper end of the seat pocket 101 is connected with the handle 12 through a first pull rope 102, the lower front end of the seat pocket 101 is connected with the diagonal strut 11, and the lower rear end of the seat pocket 101 is connected with the push rod assembly 8 through a second pull rope 103. In the unfolded state of the stroller, the seat pocket 101 exerts pulling force on the upper end of the diagonal strut 11 to unfold the diagonal strut 11 relative to the front support leg 1. When the stroller is folded, the push rod assembly 8 rotates relative to the front support leg 1 to close, the handle 12 at the upper end of the push rod assembly 8 moves close to the lower end of the front support leg 1, at this time, the first pull rope 102 and the seat pocket 101 become loose, and the diagonal strut 11 rotates relative to the front support leg 1 to close on the front support leg 1, thereby realizing the folding of the diagonal strut 11 and the seat assembly 10. The diagonal strut 11 is unfolded by pulling the seat pocket 101, which is ingenious. In this embodiment, the push rod assembly 8 comprises a lower push rod 81 and an upper push rod 82 which can be extended and retracted relative to the lower push rod 81, the lower push rod 81 is connected with the front support leg 1 and the linkage rod 9, the second pull rope 103 is hung on a hook 83 on the lower push rod 81, and the handle 12 is connected on the upper end of the upper push rod 82.

[0025] As shown in Figure 1 , in the unfolded state of the stroller, the projections of the front support leg 1, the rear support leg 5 and the push rod assembly 8 on the vertical plane form a triangle, and the high stability of the triangular structure ensures that the stroller is stable and reliable in the unfolded state and has sufficient carrying capacity.

[0026] As shown in Figure 1 and 4 , the linkage rod 9 is L-shaped and comprises a first rod body 91 and a second rod body 92, the first rod body 91 extends along the push rod assembly 8, the second rod body 92 extends along the rear support leg 5, the first rod body 91 is hinged with the push rod assembly 8 around the fourth axis D, and the second rod body 92 is hinged with the rear support leg 5 around the fifth axis E, which ensures that the stroller is stable and reliable in the unfolded state and can flexibly fold the rear support leg 5 when the stroller is folded.

[0027] As shown in Figure 1 , Figure 6 and Figure 7 , the lower side of the front support leg 1 is provided with a sliding groove 13, the sliding member 4 comprises a body 41, the upper end of the body 41 is provided with protruding sliding bodies 42 on both sides which can slide with the lower groove wall of the sliding groove 13, and the lower end of the body 41 is provided with protruding hinge bodies 43 on both sides which can be hinged with the rear support leg 5.

[0028] The locking device can adopt a traditional locking structure, for example, a locking structure of a clamping hole and a clamping pin is arranged between the lower push rod 81 and the front supporting leg 1, when the upper push rod 82 slides downward, the locking structure can be impacted to be unlocked, of course, a locking structure can also be arranged between the sliding part 4 and the front supporting leg 1, and the locking structure is unlocked through the unlocking mode of the pull rope. In summary, the locking device can adopt a relatively mature locking mechanism in the prior art, and details are not repeated here.

[0029] The above describes the embodiment in combination with the drawings, but the utility model is not limited to the above embodiment, and various changes can be made within the knowledge range possessed by those skilled in the art in the technical field without departing from the purpose.

Claims

1. A stroller capable of moving from an unfolded state to a folded state after a locking device is unlocked, characterized in that: The child stroller comprises a front supporting leg (1), a front wheel frame (2) connected to the lower end of the front supporting leg (1), a front wheel (3) connected to the front wheel frame (2), a sliding member (4) arranged on the front supporting leg (1) and capable of sliding relative to the front supporting leg (1), a rear supporting leg (5) hinged to the sliding member (4) about a first axis (A), a rear wheel frame (6) connected to the lower end of the rear supporting leg (5), a rear wheel (7) connected to the rear wheel frame (6), a push rod assembly (8) hinged to the upper end of the front supporting leg (1) about a second axis (B), a linkage rod (9) hinged to the push rod assembly (8) and the rear supporting leg (5) and capable of driving the rear supporting leg (5) to rotate and fold relative to the front supporting leg (1) when the push rod assembly (8) rotates and folds relative to the front supporting leg (1), and a seat assembly (10) capable of folding when the push rod assembly (8) rotates and folds relative to the front supporting leg (1).

2. The stroller of claim 1, wherein: The front supporting leg (1) is hinged to a diagonal supporting rod (11) about a third axis (C), the seat assembly (10) comprises a flexible and foldable seat pocket (101), the upper end of the push rod assembly (8) is provided with a forwardly extending handle (12), the upper end of the seat pocket (101) is connected to the handle (12) through a first pull rope (102), the front lower end of the seat pocket (101) is connected to the diagonal supporting rod (11), and the rear lower end of the seat pocket (101) is connected to the push rod assembly (8) through a second pull rope (103), and the seat pocket (101) exerts a pulling force on the upper end of the diagonal supporting rod (11) to unfold the diagonal supporting rod (11) relative to the front supporting leg (1) when the child stroller is unfolded.

3. The stroller of claim 1 or 2, wherein: The projections of the front supporting leg (1), the rear supporting leg (5) and the push rod assembly (8) on a vertical plane form a triangle when the child stroller is unfolded.

4. The stroller of claim 1 or 2, wherein: The linkage rod (9) is L-shaped and comprises a first rod body (91) and a second rod body (92), the first rod body (91) extends along the push rod assembly (8), the second rod body (92) extends along the rear supporting leg (5), the first rod body (91) is hinged to the push rod assembly (8) about a fourth axis (D), and the second rod body (92) is hinged to the rear supporting leg (5) about a fifth axis (E).

5. The stroller of claim 2, wherein: The push rod assembly (8) comprises a lower push rod (81) and an upper push rod (82) capable of extending and retracting relative to the lower push rod (81), the lower push rod (81) is connected to the front supporting leg (1) and the linkage rod (9), the second pull rope (103) is hung on a hook (83) on the lower push rod (81), and the handle (12) is connected to the upper end of the upper push rod (82).

6. The stroller of claim 1, wherein: The lower side of the front supporting leg (1) is provided with a sliding groove (13), the sliding member (4) comprises a body (41), the upper end of the body (41) is provided with two protruding sliding bodies (42) capable of slidingly cooperating with the lower groove walls of the sliding groove (13), and the lower end of the body (41) is provided with two protruding hinge bodies (43) capable of being hinged to the rear supporting leg (5).

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