Baby stroller

Abstract

The utility model discloses a baby stroller, which can move from an unfolding position to a folding position after a locking device is unlocked, and comprises a bottom support frame and a connecting seat which is rotatably connected to the bottom support frame around a first axis A. The bottom support frame comprises a rear leg and a front leg which is rotatably connected to the rear leg around a second axis B. The rear leg is further rotationally connected with a supporting rod around a third axis C. A linkage piece capable of driving the front leg to be close to the rear leg when the supporting rod is folded to be close to the rear leg around the third axis C is further arranged between the supporting rod and the front leg, and the front leg and the rear leg are both connected with wheels. The utility model aims to overcome the defects in the prior art, and provides the baby stroller which is simple in structure and convenient to fold.

Description

[Technical field]

[0001] The utility model relates to a baby stroller. [Background technology]

[0002] Strollers provide great convenience for adults to carry small children for outdoor activities, so they have gradually become a necessity for children to go out. In order to facilitate the carrying and storage of child strollers, the stroller frames that make up the child strollers are generally foldable. There are many types of existing child strollers, and the number of stroller frame rods is different, and the connection positions between the rods are different, so the folding principles, folding methods and folded effects are different; the utility model also provides a simple and foldable child stroller. [Contents of the utility model]

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a child stroller which has a simple structure and is easy to fold.

[0004] The utility model is realized by the following technical solutions:

[0005] A child stroller, which can be moved from an unfolded position to a folded position after a locking device is unlocked, comprises a bottom support frame 1 and a connecting seat 2 rotatably connected to the bottom support frame 1 around a first axis A, the bottom support frame 1 comprises a rear leg 11 and a front leg 12 rotatably connected to the rear leg 11 around a second axis B, the rear leg 11 is also rotatably connected to a support rod 3 around a third axis C, and a linkage 4 is further provided between the support rod 3 and the front leg 12, which can drive the front leg 12 to move closer to the rear leg 11 when the support rod 3 is folded closer to the rear leg 11 around the third axis C, and wheels 13 are connected to both the front leg 12 and the rear leg 11.

[0006] The hind leg 11 includes a hind leg frame 111, and an extension portion 112 extending forward is provided at the upper end of the hind leg frame 111. The front leg 12 is connected to the extension portion 112 by rotation around a second axis B. The support rod 3 is connected to the upper end of the hind leg frame 111 by rotation around a third axis C. The wheel 13 is connected to the lower end of the hind leg frame 111, and the connecting seat 2 is arranged directly above the extension portion 112.

[0007] The linkage member 4 includes a linkage rod 41, the rear end of which is rotatably connected to the support rod 3 around the fourth axis D, and the front end of the linkage rod 41 is connected to a latch 42 that can be inserted into the front leg 12. The front leg 12 is provided with a sliding groove 121 in which the latch 42 can slide and which can rotate the front leg 12 toward the rear leg 11 when pressed by the latch 42.

[0008] The slide groove 121 is arranged in an arc shape, and is provided with a pressing end 1211 which can press against the latch pin 42 when the latch pin 42 moves.

[0009] A first elastic member 14 is provided between the front leg 12 and the rear leg 11 , which is in a deformed state when the child stroller is unfolded and drives the front leg 12 to rotate and fold toward the rear leg 11 when the child stroller is folded.

[0010] The rear legs 11 are also provided with a transversely extending cross brace 113 , and the cross brace 113 is provided with a latching position 1131 for the support rod 3 to latch into when the baby stroller is folded.

[0011] The connecting seat 2 includes a seat body 21 and a protruding portion 22 extending downward relative to the seat body 21 . The protruding portion 22 is rotatably connected to the extending portion 112 around a first axis A, and the first axis A and the second axis B are coaxial.

[0012] The locking device 5 includes a locking member 51 arranged on the connecting seat 2, and the support rod 3 is connected with a hook 52 which can rotate relative to it around the fifth axis E to engage with or disengage from the locking member 51, and a second elastic member 53 is provided between the hook 52 and the support rod 3 to enable the hook 52 to maintain a locked state, and the support rod 3 is connected with a hand push rod 6 which can press the hook 52 when sliding relative to it to disengage the hook 52 from the locking member 51.

[0013] The connecting seat 2 is connected to a seat assembly 7 that can rotate and change direction relative to the connecting seat 2. The seat assembly 7 includes a seat portion 71 rotatably connected to the connecting seat 2 and a backrest portion 72 rotatably connected to the seat portion 71 around a sixth axis F. An armrest frame 73 is rotatably connected to the backrest portion 72 around a seventh axis G. A connecting member 74 is provided between the armrest frame 73 and the seat portion 71, which is rotatably connected to the two and can also cooperate with the seat portion 71, the armrest frame 73 and the backrest portion 72 to form a frame. The upper end of the connecting member 74 is rotatably connected to the armrest frame 73 around an eighth axis H, and the lower end of the connecting member 74 is rotatably connected to the seat portion 71 around a ninth axis I. A locking device is provided between the seat portion 71 and the backrest portion 72, which can lock the seat assembly 7.

[0014] An elastic component 8 is also provided between the connecting seat 2 and the supporting rod 3 and is in a deformed state when the baby stroller is unfolded.

[0015] Compared with the prior art, the utility model has the following advantages: when the child stroller of the utility model is folded, the locking device is first unlocked, and then the support rod is pushed to rotate around the third axis C toward the rear legs. In the process of the support rod rotating toward the rear legs, the support rod drives the linkage member to move. When the linkage member moves, it can drive the front legs to move toward the rear legs around the second axis B, thereby completing the folding of the entire child stroller. The user only needs to push the support rod to rotate toward the rear legs to complete the folding of the entire child stroller, and the folding operation is simple.

Brief Description of the Drawings

[0016] Figure 1 It is a three-dimensional diagram of the utility model baby stroller;

[0017] Figure 2 It is a cross-sectional view of the utility model baby stroller;

[0018] Figure 3 yes Figure 2 Enlarged view of the middle J region;

[0019] Figure 4 It is a cross-sectional view of the linkage and front legs of the child stroller of the utility model;

[0020] Figure 5 It is a three-dimensional diagram of a connecting seat in the child stroller of the utility model;

[0021] Figure 6 It is a three-dimensional diagram of the utility model baby stroller when folded;

[0022] Figure 7 This is a side view of the utility model stroller when it is folded;

[0023] Figure 8 This is a three-dimensional diagram of the utility model stroller when it is folded;

[0024] Fig. 9 This is a side view of the utility model stroller when it is folded;

[0025] Fig.10 It is an exploded view of the front legs and the rear legs of the child stroller of the utility model;

[0026] Fig.11 This is one of the use state diagrams of the utility model baby stroller;

[0027] Fig.12 This is the second diagram of the use state of the child stroller of the utility model;

[0028] Fig.13 It is a side view of the child stroller of the utility model in use state;

[0029] Fig.14It is a cross-sectional view of a child stroller in the utility model when a connecting seat and a supporting rod are connected via an elastic component. [Specific implementation method]

[0030] The utility model is further described below in conjunction with the accompanying drawings:

[0031] like Figures 1 to 14 As shown, the utility model provides a child stroller, which can be moved from an unfolded position to a folded position after a locking device is unlocked, and includes a bottom support frame 1 and a connecting seat 2 rotatably connected to the bottom support frame 1 around a first axis A, the bottom support frame 1 includes a rear leg 11 and a front leg 12 rotatably connected to the rear leg 11 around a second axis B, the rear leg 11 is also rotatably connected to a support rod 3 around a third axis C, and a linkage 4 is provided between the support rod 3 and the front leg 12, which can drive the front leg 12 to move closer to the rear leg 11 when the support rod 3 is folded closer to the rear leg 11 around the third axis C, and wheels 13 are connected to both the front leg 12 and the rear leg 11.

[0032] When the stroller of the utility model is folded, the locking device is first unlocked, and then the support rod 3 is pushed to rotate around the third axis C toward the rear leg 11. During the process of the support rod 3 rotating toward the rear leg 11, the support rod 3 drives the linkage member 4 to move. When the linkage member 4 moves, it can drive the front leg 12 to move toward the rear leg 11 around the second axis B, thereby completing the folding of the entire stroller. The user only needs to push the support rod 3 to rotate toward the rear leg 11 to complete the folding of the entire stroller. The folding operation is simple.

[0033] like Figures 2 to 4 As shown, the rear leg 11 includes a rear leg frame 111, the upper end of the rear leg frame 111 is provided with an extension portion 112 extending forward, the front leg 12 is connected to the extension portion 112 for rotation around the second axis B, the wheels 13 of the support frame 3 are connected to the lower end of the rear leg frame 111, and the connecting seat 2 is arranged just above the extension portion 112. The extension portion 112 allows the linkage member 4 to have sufficient movement space when it moves relative to the support member 3 and the front leg 12, so that the support member 3 drives the linkage member 4 to move and the support member 3 drives the front leg 12 to move more smoothly.

[0034] like Figures 2 to 4As shown, the linkage member 4 includes a linkage rod 41, the rear end of which is rotatably connected to the support rod 3 around the fourth axis D, the front end of which is connected to a latch 42 that can be inserted into the front leg 12, and the front leg 12 is provided with a slide groove 121 in which the latch 42 can slide and can make the front leg 12 rotate and approach the rear leg 11 when pressed by the latch 42. When the support rod 3 rotates around the second axis B relative to the rear leg 11, the lower end of the support rod 3 moves upward, and when the lower end of the support rod 3 moves upward, the rear end of the linkage rod 41 rotates around the fourth axis D relative to the support rod 3 and moves obliquely upward under the drive of the lower end of the support rod 3, so that the latch 42 at the front end of the linkage rod 41 presses against the end of the slide groove 121, thereby making the front leg 12 rotate and approach the rear leg 11.

[0035] like Figure 4 As shown, the slide groove 121 is arranged in an arc shape, and a pressing end 1211 is provided on the slide groove 121, which can press against the latch 42 when the latch 42 moves. The rotation of the front leg 12 relative to the rear leg 11 is a circular rotation, so when the slide groove 121 is arranged in an arc shape, the latch 42 can also move in the slide groove 121 in an arc shape and push the pressing end 1211, so that the latch 42 can move more smoothly in the slide groove 121.

[0036] like Fig.10 As shown, a first elastic member 14 is provided between the front leg 12 and the rear leg 11, which is in a deformed state when the child stroller is unfolded and drives the front leg 12 to rotate and fold toward the rear leg 11 when the child stroller is folded. The first elastic member 14 is a torsion spring. When the child stroller is in an unfolded state, the first elastic member 14 is in a deformed state, and since the locking device locks the child stroller, the first elastic member 14 will not rebound. When the locking device is unlocked and the support member 3 rotates downward, the first elastic member 14 starts to rebound and presses the front leg 12 to rotate and fold toward the rear leg 11, so that the front leg 12 can rotate and fold toward the rear leg 11 more smoothly.

[0037] like Figure 1 and Figure 8 As shown, the rear leg 11 is also provided with a transversely extending cross brace 113, and the cross brace 113 is provided with a clamping position 1131 for the support rod 3 to be clamped into when the child stroller is folded. When the child stroller is folded, the support rod 3 can be clamped into the clamping position 1131, so that the volume of the entire child stroller after folding is smaller.

[0038] like Figure 5 As shown, the connecting seat 2 includes a seat body 21 and a protrusion 22 extending downward relative to the seat body 21, and the protrusion 22 is connected to the upper end of the front leg 12 by rotation around the third axis C. The seat body 21 rotates around the third axis C to get closer to the front leg 12.

[0039] like Figures 2 to 3 As shown, the locking device 5 comprises a locking member 51 disposed on the connecting seat 2, a hook 52 is connected to the supporting rod 3 and can rotate relative to the supporting rod 3 about the fifth axis E to engage with or disengage from the locking member 51, a second elastic member 53 is provided between the hook 52 and the supporting rod 3 to enable the hook 52 to maintain a locked state, and a hand push rod 6 is connected to the supporting rod 3 to press the hook 52 when sliding relative to the supporting rod 3 to enable the hook 52 to disengage from the locking member 51. The locking member 51 is a rod, a connecting column or a latch disposed transversely relative to the connecting seat 2. When the stroller needs to be folded, the push rod 6 is driven to slide relative to the support rod 3. When the push rod 6 slides relative to the support rod 3, the push rod 6 presses the hook 52 to make the hook 52 rotate relative to the support rod 3 around the fifth axis E. The hook 52 is disengaged from the locking member 51 during the rotation. At this time, the locking device 5 is unlocked, and the support rod 3 and the connecting seat 2 can be rotated and folded relative to the rear leg 11 and the front leg 12 respectively.

[0040] like Figures 11 to 12 As shown, the connecting seat 2 is connected with a seat assembly 7 that can rotate relative to the connecting seat 2. When the seat assembly 7 faces the user, the user can take care of the child sitting on the seat assembly 7. When the seat assembly 7 faces away from the user, the child sitting on the seat assembly 7 faces forward. When the seat assembly 7 is not provided, the child can sit on the connecting seat 2, and only the shape and size of the connecting seat 2 need to be modified.

[0041] like Fig.13As shown, the seat assembly 7 comprises a seat portion 71 rotatably connected to the connection seat 2 and a backrest portion 72 rotatably connected to the seat portion 71 around a sixth axis F, an armrest frame 73 rotatably connected to the backrest portion 72 around a seventh axis G, a connecting member 74 rotatably connected to the armrest frame 73 and the seat portion 71 is provided between the armrest frame 73 and the seat portion 71 and capable of forming a surrounding frame by cooperating with the seat portion 71, the armrest frame 73 and the backrest portion 72, the upper end of the connecting member 74 rotatably connected to the armrest frame 73 around an eighth axis H, and the lower end of the connecting member 74 rotatably connected to the seat portion 71 around a ninth axis I, and a locking device capable of locking the seat assembly 7 is provided between the seat portion 71 and the backrest portion 72. The locking structure is an existing lock structure such as a spline lock or a latch and a slot provided on the seat portion 71 and the backrest portion 72. When the seat assembly 7 needs to be folded, the locking device is first unlocked, and then the backrest 72 is pushed to rotate and fold around the sixth axis F toward the seat portion 71. During the rotation and folding process of the backrest 72, the backrest 72 drives the armrest frame 73 to move, and the armrest frame 73 rotates relative to the seventh axis G of the backrest 72 and folds close to the connecting member 74. The upper part of the connecting member 74 moves forward and rotates relative to the armrest frame 73 around the eighth axis H when pressed by the front end of the armrest frame 73, and when the lower end of the connecting member 74 rotates relative to the seat portion 71 around the ninth axis I, the connecting member 74 folds close to the seat portion 71. When the armrest frame 73, the seat portion 71 and the connecting member 74 are close, and the backrest 72, the armrest frame 73, the seat portion 71 and the connecting member 74 are close, the entire seat assembly 7 is folded. The folded seat assembly occupies a small space, which is convenient for users to store or carry outside.

[0042] like Fig.14 As shown, an elastic component 8 is also provided between the connecting seat 2 and the support rod 3, which is in a deformed state when the child stroller is unfolded. The elastic component 8 is a tension spring. When the child stroller is in the unfolded state, the elastic component 8 is in a deformed state. Since the locking device locks the child stroller, the elastic component 8 cannot be restored. When the locking device is unlocked, the elastic component 8 rebounds and resets. When the elastic component 8 rebounds and resets, it can provide a certain pulling force for the child stroller, making the child stroller smoother and more flexible when folding.

Claims

1. A child stroller capable of moving from an unfolded position to a folded position after unlocking a locking device, characterized in that: The invention comprises a bottom support frame (1) and a connecting seat (2) connected to the bottom support frame (1) by rotation around a first axis (A), the bottom support frame (1) comprising a rear leg (11) and a front leg (12) connected to the rear leg (11) by rotation around a second axis (B), the rear leg (11) is also connected to a support rod (3) by rotation around a third axis (C), and a linkage member (2) is provided between the support rod (3) and the front leg (12) so as to drive the front leg (12) to move closer to the rear leg (11) when the support rod (3) is folded and moved closer to the rear leg (11) by rotation around the third axis (C). 4), the front legs (12) and the rear legs (11) are both connected with wheels (13), the rear legs (11) include rear leg frames (111), the upper end of the rear leg frames (111) is provided with an extension portion (112) extending forward, the front legs (12) are connected to the extension portion (112) by rotation around a second axis (B), the support rod (3) is connected to the upper end of the rear leg frames (111) by rotation around a third axis (C), the wheels (13) are connected to the lower end of the rear leg frames (111), and the connecting seat (2) is arranged directly above the extension portion (112).

2. The baby stroller according to claim 1, characterized in that: The linkage member (4) comprises a linkage rod (41), the rear end of which is rotatably connected to the support rod (3) around a fourth axis (D), the front end of which is connected to a latch (42) which can be inserted into the front leg (12), and the front leg (12) is provided with a slide groove (121) in which the latch (42) can slide and which can rotate the front leg (12) toward the rear leg (11) when pressed by the latch (42).

3. The stroller according to claim 2, characterized in that: The slide groove (121) is arranged in an arc shape, and a pressing end (1211) is provided on the slide groove (121) which can press against the latch pin (42) when the latch pin (42) moves.

4. The stroller according to any one of claims 1 to 3, characterized in that: A first elastic member (14) is provided between the front leg (12) and the rear leg (11), which is in a deformed state when the child stroller is unfolded and drives the front leg (12) to rotate and fold toward the rear leg (11) when the child stroller is folded.

5. The stroller according to claim 4, characterized in that: The rear leg (11) is also provided with a transversely extending cross brace (113), and the cross brace (113) is provided with a latching position (1131) for the support rod (3) to latch into when the child stroller is folded.

6. The stroller according to claim 1, characterized in that: The connecting seat (2) comprises a seat body (21) and a protruding portion (22) extending downward relative to the seat body (21); the protruding portion (22) is connected to the extending portion (112) by rotating around a first axis (A); and the first axis (A) and the second axis (B) are on the same axis.

7. The stroller according to claim 1, characterized in that: The locking device (5) comprises a locking member (51) arranged on the connecting seat (2); the support rod (3) is connected with a hook (52) which can rotate relative to the support rod around a fifth axis (E) to engage with or disengage from the locking member (51); an elastic member (53) is provided between the hook (52) and the support rod (3) to keep the hook (52) in a locked state; the support rod (3) is connected with a hand push rod (6) which can press the hook (52) when sliding relative to the support rod to disengage the hook (52) from the locking member (51).

8. The stroller according to claim 1, characterized in that: The connecting seat (2) is connected to a seat assembly (7) capable of rotating and reversing relative to the connecting seat. The seat assembly (7) comprises a seat portion (71) rotatably connected to the connecting seat (2) and a backrest portion (72) rotatably connected to the seat portion (71) around a sixth axis (F). An armrest frame (73) is rotatably connected to the backrest portion (72) around a seventh axis (G). A connecting member (74) is provided between the armrest frame (73) and the seat portion (71) and is rotatably connected to the two and can also cooperate with the seat portion (71), the armrest frame (73) and the backrest portion (72) to form a surrounding frame. The upper end of the connecting member (74) is rotatably connected to the armrest frame (73) around an eighth axis (H), and the lower end of the connecting member (74) is rotatably connected to the seat portion (71) around a ninth axis (I). A locking device is provided between the seat portion (71) and the backrest portion (72) and can lock the seat assembly (7) in a locked state.

9. The baby stroller according to claim 1, characterized in that: An elastic component (8) which is in a deformed state when the child stroller is unfolded is also provided between the connecting seat (2) and the supporting rod (3).

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