Baby stroller

Abstract

The utility model discloses a child stroller which comprises a bottom supporting frame connected with front wheels and rear wheels, the bottom supporting frame is further connected with a supporting assembly, the supporting assembly comprises a first supporting rod and a second supporting rod, the first supporting rod and the second supporting rod intersect with each other and are hinged around a first axis A at the intersection position, and a sliding seat is arranged on the bottom supporting frame. The lower end of the first supporting rod is rotatably connected with the sliding seat around a second axis B. The upper end of the first supporting rod is rotatably connected with a push rod assembly around a third axis C. The lower end of the second supporting rod is rotatably connected with the bottom supporting frame around a fourth axis D. A seat bag is arranged between the upper end of the second supporting rod and the push rod assembly. A first locking assembly is arranged between the push rod assembly and the first supporting rod, a second locking assembly is arranged between the first supporting rod and the sliding base, and a transmission piece capable of driving the second locking assembly to be unlocked when the push rod assembly rotates relative to the first supporting rod in a folding mode is further arranged in the first supporting rod. 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 baby stroller. [Background technology]

[0002] Strollers are common products for infants and young children during their growth process. Generally, strollers are configured to be switchable between an unfolded state and a folded state. In daily use, the stroller is locked in the unfolded state, and the child sits in the unfolded stroller while the parents push the stroller. When the stroller is not needed, it is generally folded and stored. Or when it is inconvenient to push it in places such as trains and airplanes, it is also folded or placed in the trunk of a car and taken on the train or airplane for checked baggage.

[0003] Therefore, for a general family, the smaller the volume of the stroller after folding, the better, because the smaller the volume after folding, the more convenient it is to store and carry. Therefore, the utility model provides a new type of stroller for children. [Contents of the utility model]

[0004] The utility model aims to overcome the deficiencies of the prior art and provide a child stroller which has a simple structure, is easy to fold and has a small volume after being folded.

[0005] The utility model is realized by the following technical solutions:

[0006] A baby stroller, comprising a bottom support frame 1, wherein the front side of the bottom support frame 1 is connected to a front wheel 1a, the rear side of the bottom support frame 1 is connected to a rear wheel 1b, the bottom support frame 1 is also connected to a support assembly 2, the support assembly 2 comprises a first support rod 21 and a second support rod 22 which are mutually crossed and hinged around a first axis A at the intersection position, the bottom support frame 1 is provided with a sliding seat 3 which can slide along the bottom support frame 1, the lower end of the first support rod 21 is rotatably connected to the sliding seat 3 around a second axis B, and the upper end of the first support rod 21 is hinged around a first axis A. The third axis C is rotatably connected to a push rod assembly 4, the lower end of the second support rod 22 is rotatably connected to the bottom support frame 1 around the fourth axis D, a flexible and foldable seat pocket 5 is provided between the upper end of the second support rod 22 and the push rod assembly 4, and a first locking assembly 6 is provided between the push rod assembly 4 and the first support rod 21, a second locking assembly 7 is provided between the first support rod 21 and the sliding seat 3, and a transmission member 8 is also provided in the first support rod 21, which can drive the second locking assembly 7 to unlock when the push rod assembly 4 is folded and rotated relative to it.

[0007] The bottom support frame 1 includes a left bracket 11 and a right bracket 12 spaced apart from each other, a front wheel frame 13 connecting the left bracket 11 and the right bracket 12 is provided at the front end thereof, the front wheel 1a is connected to the front wheel frame 13, the rear ends of the left bracket 11 and the right bracket 12 are bent and extended outward respectively to form a left bending portion 14 and a right bending portion 15, a rear wheel frame 16 connecting the left bending portion 14 and the right bending portion 15 is provided between the left bending portion 14 and the right bending portion 15, and the rear wheel 1b is connected to the rear wheel frame 16.

[0008] The lower end of the first support rod 21 is fixedly connected to a lower fixed seat 23, and the first support rod 21 is rotatably connected to the sliding seat 3 around the second axis B through the lower fixed seat 23. The upper end of the first support rod 21 is fixedly connected to an upper fixed seat 24, and the first support rod 21 is rotatably connected to the push rod assembly 4 around the third axis C through the upper fixed seat 24.

[0009] The second locking assembly 7 includes a second locking groove 71 arranged on the sliding seat 3, and the lower fixed seat 23 is provided with a second locking pin 72 which can slide therein and can engage or disengage with the second locking groove 71, and the second locking pin 72 is connected to the transmission member 8. A second spring 73 which can push the second locking pin 72 to return to its original position is also provided between the lower fixed seat 23 and the second locking pin 72.

[0010] The first locking assembly 6 includes a first locking groove 61 arranged on the upper fixed seat 24, and the push rod assembly 4 is provided with a first locking pin 62 which can slide therein and can engage with or disengage from the first locking groove 61. The push rod assembly 4 is provided with a driving assembly 63 which can pull the first locking pin 62 out of the first locking groove 61, and a first spring 64 which can push the first locking pin 62 to return to its original position is also provided between the first locking pin 62 and the push rod assembly 4.

[0011] The driving assembly 63 includes an operating block 631 that is disposed on the upper end of the push rod assembly 4 and is exposed. A first pull rope 632 is disposed between the operating block 631 and the first locking pin 62, which can pull the first locking pin 62 out of the first locking groove 61 when the operating block 631 moves relative to the push rod assembly 4.

[0012] The push rod assembly 4 includes a rod body 41, a connecting seat 42 is provided at the lower end of the rod body 41, a protrusion 43 protruding to one side thereof is provided on the connecting seat 42, the push rod assembly 4 is rotatably connected to the upper fixed seat 24 around the third axis C through the protrusion 43, the first locking pin 63 and the first spring 64 are arranged in the connecting seat 42, the upper end of the rod body 41 is provided with a cross bar 44 connected to the middle part thereof, the two ends of the cross bar 44 are provided with handles 45 extending forward, the operating block 631 is connected to the cross bar 44, and the upper end of the seat pocket 5 is connected to the handle 45.

[0013] There are two operating blocks 631 located on both sides of the rod body 41 , each operating block 631 is rotatably connected to the cross bar 44 , and there are two first pull ropes 632 connected between the operating block 631 and the first locking pin 62 , respectively.

[0014] The transmission member 8 includes a rotating seat 81 rotatably connected to the upper fixed seat 24 around a third axis C, and the rotating seat 81 is provided with a pushing portion 82 that can be pushed by the push rod assembly 4 when the push rod assembly 4 is rotated and folded relative to the upper fixed seat 24. A second pull rope 83 is provided between the eccentric position of the rotating seat 81 and the second locking pin 72, which can pull the second locking pin 72 out of the second locking groove 71 when the rotating seat 81 rotates.

[0015] The crossbar 44 is also provided with a rotating bracket 91 which can rotate relative to the crossbar 44 , and a sunshade canopy 92 is provided on the rotating bracket 91 .

[0016] Compared with the prior art, the utility model has the following advantages: when the child stroller of the utility model is folded, the first locking assembly is first unlocked, and then the push rod assembly is rotated forward. During the rotation process, the push rod assembly drives the second locking assembly to unlock through the transmission member. Once the second locking assembly is unlocked, the first support rod can rotate relative to the sliding seat, and the lower end of the first support rod can push the sliding seat to slide forward along the bottom support frame. During this process, the first support rod and the second support rod rotate, and the second support rod and the bottom support frame rotate. Finally, the first support rod, the second support rod and the push rod assembly are all close to the bottom support frame, so that the child stroller can be folded as a whole. The entire folding operation is very convenient and quick, and the overall length after folding is the length of the bottom support frame. After folding, it occupies a small space and is easy to carry or store.

Brief Description of the Drawings

[0017] Figure 1 It is a side view of the utility model in the unfolded state;

[0018] Figure 2 It is one of the three-dimensional diagrams of the components of the utility model;

[0019] Figure 3 This is the second stereogram of the components of the utility model;

[0020] Figure 4 It is a side view of the utility model during the folding process;

[0021] Figure 5 It is a partial cross-sectional view of the utility model;

[0022] Figure 6 yes Figure 5 Enlarged view at E in the middle;

[0023] Figure 7 yes Figure 5 Enlarged view at F in the middle;

[0024] Figure 8 It is an exploded view of the components of the utility model;

[0025] Fig. 9 yes Figure 8 Enlarged view at G in the middle;

[0026] Fig.10 It is the third stereogram of the components of the utility model. [Specific implementation method]

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] like Figures 1 to 4As shown, a child stroller includes a bottom support frame 1, the front side of the bottom support frame 1 is connected to a front wheel 1a, the rear side of the bottom support frame 1 is connected to a rear wheel 1b, the bottom support frame 1 is also connected to a support assembly 2, the support assembly 2 includes a first support rod 21 and a second support rod 22 that intersect each other and are hinged around a first axis A at the intersection position, the bottom support frame 1 is provided with a sliding seat 3 that can slide along it, the lower end of the first support rod 21 is rotatably connected to the sliding seat 3 around a second axis B, and the first support rod 21 is connected to the sliding seat 3. The end is rotatably connected to a push rod assembly 4 around a third axis C, the lower end of the second support rod 22 is rotatably connected to the bottom support frame 1 around a fourth axis D, a flexible and foldable seat pocket 5 is provided between the upper end of the second support rod 22 and the push rod assembly 4, and a first locking assembly 6 is provided between the push rod assembly 4 and the first support rod 21, a second locking assembly 7 is provided between the first support rod 21 and the sliding seat 3, and a transmission member 8 is also provided in the first support rod 21, which can drive the second locking assembly 7 to unlock when the push rod assembly 4 is folded and rotated relative to it. When the child stroller is folded, the first locking assembly 6 is unlocked, and the push rod assembly 4 rotates forward around the third axis C. During the rotation process, the transmission member 8 drives the second locking assembly 7 to unlock, and the center of gravity of the push rod assembly 4 moves forward, and the push rod assembly 4 can apply a thrust to the upper end of the first support rod 21. Since the first support rod 21 is unlocked from the sliding seat 3 at this time, the first support rod 21 can rotate relative to the sliding seat 3 around the second axis B and push the sliding seat 3 to slide forward, so that the first support rod 21 rotates relative to the second support rod 22, and the second support rod 22 rotates relative to the bottom support frame 1 relative to the fourth axis D. Therefore, the first support rod 21 and the second support rod 22 are brought closer to the bottom support frame 1, and the push rod assembly 4 is also brought closer to the bottom support frame 1, so that the child stroller is folded. During the folding process, the second locking assembly 7 can be unlocked by the transmission member 8 during the process of rotating the push rod assembly 4 forward, and linkage is realized. The entire folding operation only requires the first locking assembly 6 to unlock and the push rod assembly 4 to rotate forward, and the folding operation is very convenient and quick. Moreover, it takes up little space after folding, which is convenient to carry or store.

[0029] like Figure 2 and Figure 8As shown, the bottom support frame 1 includes a left support 11 and a right support 12 spaced apart from each other, the front ends of the left support 11 and the right support 12 are provided with a front wheel frame 13 connecting the two, the front wheel 1a is connected to the front wheel frame 13, the rear ends of the left support 11 and the right support 12 are respectively bent and extended outward to form a left bending portion 14 and a right bending portion 15, a rear wheel frame 16 connecting the two is provided between the left bending portion 14 and the right bending portion 15, and the rear wheel 1b is connected to the rear wheel frame 16. The left bending portion 14 and the right bending portion 15 extend to both sides, so that the rear part of the child stroller has a wider dimension in the left and right lateral directions, which can ensure that the child stroller is stable and not prone to deflection. The left bending portion 14 can be integrally injection molded with the left support 11, and the right bending portion 15 can be integrally injection molded with the right support 12, with a simple molding process and low cost.

[0030] like Figures 4 to 8 As shown, the lower end of the first support rod 21 is fixedly connected to a lower fixed seat 23, and the first support rod 21 is rotatably connected to the sliding seat 3 around the second axis B through the lower fixed seat 23. The upper end of the first support rod 21 is fixedly connected to an upper fixed seat 24, and the first support rod 21 is rotatably connected to the push rod assembly 4 around the third axis C through the upper fixed seat 24.

[0031] like Figure 5 , Figure 6 and Figure 8 As shown, the second locking assembly 7 includes a second locking groove 71 provided on the sliding seat 3, and the lower fixed seat 23 is provided with a second locking pin 72 which can slide therein and can engage or disengage with the second locking groove 71, and the second locking pin 72 is connected to the transmission member 8. When the push rod assembly 4 is rotated and folded relative to the upper fixed seat 24, the transmission member 8 pulls the second locking pin 72 to disengage from the second locking groove 71, so as to unlock the first support rod 21 and the sliding seat 3, and realizes linkage unlocking during the rotation of the push rod assembly 4, which is very convenient for the unlocking operation of the second locking assembly 7. A second spring 73 which can push the second locking pin 72 to return to its original position is also provided between the lower fixed seat 23 and the second locking pin 72.

[0032] like Figure 5 , Figures 7 to 9As shown, the first locking assembly 6 includes a first locking groove 61 arranged on the upper fixed seat 24, the push rod assembly 4 is provided with a first locking pin 62 which can slide therein and can engage or disengage with the first locking groove 61, the push rod assembly 4 is provided with a driving assembly 63 which can pull the first locking pin 62 out of the first locking groove 61, the driving assembly 63 includes an operating block 631 which is arranged at the upper end of the push rod assembly 4 and exposed, a first pull rope 632 is provided between the operating block 631 and the first locking pin 62, which can pull the first locking pin 62 out of the first locking groove 61 when the operating block 631 moves relative to the push rod assembly 4, and a first spring 64 which can push the first locking pin 62 to return to its original position is also provided between the first locking pin 62 and the push rod assembly 4. When the stroller needs to be folded, the operating block 631 is squeezed. When the operating block 631 moves relative to the push rod assembly 4, the first locking pin 62 is pulled by the first pull rope 632, so that the first locking pin 62 is disengaged from the first locking groove 61. Once the first locking pin 62 is disengaged from the first locking groove 61, the push rod assembly 4 can be pushed forward to make the push rod assembly 4 rotate relative to the first support rod 21. During this process, the transmission member 8 drives the second locking assembly 7 to unlock, and the sliding seat 3 can slide forward, thereby realizing the folding of the stroller. Therefore, the stroller can be folded by just squeezing and pushing, and the operation is very convenient and quick.

[0033] like Figure 3 , Figure 8 and Fig.10 As shown, the push rod assembly 4 includes a rod body 41, a connecting seat 42 is provided at the lower end of the rod body 41, a protrusion 43 protruding to one side thereof is provided on the connecting seat 42, the push rod assembly 4 is rotatably connected to the upper fixed seat 24 around the third axis C through the protrusion 43, the first locking pin 62 and the first spring 64 are arranged in the connecting seat 42, the upper end of the rod body 41 is provided with a cross bar 44 connected to it in the middle, and handles 45 extending forward are provided at both ends of the cross bar 44, the operating block 631 is connected to the cross bar 44, and the upper end of the seat pocket 5 is connected to the handle 45.

[0034] like Figure 8 and Fig.10As shown, there are two operation blocks 631 located on both sides of the rod body 41, each of the operation blocks 631 is rotatably connected to the cross bar 44, and there are two first pull ropes 632, which are respectively connected between the operation blocks 631 and the first locking pin 62. The operation blocks 631 are arranged on both sides of the rod body 41, which can be selectively used by users. For example, for a user who is used to pushing the stroller with the right hand, the user can pull the first locking pin 62 out of the first locking groove 61 by pinching the right operation block 631 with the right hand, and for a user who is used to pushing the stroller with the left hand, the user can pull the first locking pin 62 out of the first locking groove 61 by pinching the left operation block 631 with the left hand, which is convenient for users with different habits to use and brings convenience to each user. In this embodiment, a second lock button 65 and a fourth spring 66 for pushing the second lock button 65 to reset can also be provided on the cross bar 44. After the second lock button 65 is pressed, the second lock button 65 makes way for the movement of the operating block 632, otherwise the operating block 632 cannot be moved, thereby preventing mis-locking and ensuring safety. In actual operation, you only need to press the second lock button 65 with your thumb, and then use the other four fingers to pinch the operating block 632 and rotate it to pull the first locking pin 62 out of the first locking groove 61. The operation is also very simple.

[0035] like Figure 8 and Fig. 9 As shown, the transmission member 8 includes a rotating seat 81 rotatably connected to the upper fixed seat 24 around the third axis C. The rotating seat 81 is provided with a pushing portion 82 that can be pushed by the push rod assembly 4 when the push rod assembly 4 is rotated and folded relative to the upper fixed seat 24. A second pull rope 83 that can pull the second locking pin 72 out of the second locking groove 71 when the rotating seat 81 rotates is provided between the eccentric position of the rotating seat 81 and the second locking pin 72. In this embodiment, when the push rod assembly 4 rotates forward, the push rod assembly 4 pushes the pushing portion 82, thereby causing the rotating seat 81 to rotate relative to the upper fixed seat 24. During the rotation process, the rotating seat 81 can pull the second pull rope 83, thereby causing the second locking pin 72 to disengage from the second locking groove 71. Therefore, during the forward rotation process of the push rod assembly 4, the second locking assembly 7 can be unlocked in conjunction, and a separate unlocking switch for unlocking the second locking assembly 7 is no longer provided, which makes the child stroller simple in structure and convenient in folding operation. Fig. 9 As shown, in this embodiment, a connecting groove 43a is provided on the protrusion 43, and the hinge portion 24a and the push portion 82 on the upper fixed seat 24 are both located in the connecting groove 43a. When the push rod assembly 4 is rotated and folded, the groove wall of the connecting groove 43a can push the push leg portion 82, thereby pushing the rotating seat 81 to rotate.

[0036] like Figure 2 and Figure 3As shown, the cross bar 44 is also provided with a rotating bracket 91 that can rotate relative to it, and the rotating bracket 91 is provided with a sunshade canopy 92. When the child stroller is folded, the rotating bracket 91 is first rotated backward to make the sunshade canopy 92 close to the rear side of the push rod assembly 4.

[0037] like Figure 5 As shown, the bottom support frame 1 is provided with a positioning structure that can cooperate with the sliding seat 3 to prevent the child stroller from unfolding when the child stroller is in a folded state. The positioning structure includes a positioning groove 101 provided on the sliding seat 3. The bottom support frame 1 is provided with a hook 102 that can rotate relatively and hook the groove wall of the positioning groove 101. A third spring 103 that can push the hook 102 to reset is provided between the other end of the hook 102 and the bottom support frame 1. When the child stroller is in a folded state, the hook 102 hooks the groove wall of the positioning groove 101 to prevent the child stroller from being unfolded by mistake. When the child stroller needs to be unfolded, the sliding seat 3 is slid backward with force to disengage the hook 102 from the positioning groove 101.

[0038] The embodiment is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiment, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the present purpose.

Claims

1. A baby stroller, characterized in that: The invention comprises a bottom support frame (1), wherein the front side of the bottom support frame (1) is connected to a front wheel (1a), the rear side of the bottom support frame (1) is connected to a rear wheel (1b), the bottom support frame (1) is also connected to a support assembly (2), the support assembly (2) comprises a first support rod (21) and a second support rod (22) which intersect each other and are hinged around a first axis (A) at the intersection position, the bottom support frame (1) is provided with a sliding seat (3) which can slide along the bottom support frame, the lower end of the first support rod (21) is rotatably connected to the sliding seat (3) around a second axis (B), and the upper end of the first support rod (21) is hinged around a third axis (C) is rotatably connected to a push rod assembly (4), the lower end of the second support rod (22) is rotatably connected to the bottom support frame (1) around a fourth axis (D), a flexible and foldable seat pocket (5) is provided between the upper end of the second support rod (22) and the push rod assembly (4), and a first locking assembly (6) is provided between the push rod assembly (4) and the first support rod (21), a second locking assembly (7) is provided between the first support rod (21) and the sliding seat (3), and a transmission member (8) is also provided in the first support rod (21) which can drive the second locking assembly (7) to unlock when the push rod assembly (4) is folded and rotated relative to it.

2. The baby stroller according to claim 1, characterized in that: The bottom support frame (1) comprises a left frame (11) and a right frame (12) spaced apart from each other, a front wheel frame (13) connecting the left frame (11) and the right frame (12) is provided at the front end of the left frame (11) and the right frame (12), the front wheel (1a) is connected to the front wheel frame (13), the rear ends of the left frame (11) and the right frame (12) are bent and extended outward respectively to form a left bending portion (14) and a right bending portion (15), a rear wheel frame (16) connecting the left bending portion (14) and the right bending portion (15) is provided between the left bending portion (14) and the right bending portion (15), and the rear wheel (1b) is connected to the rear wheel frame (16).

3. The baby stroller according to claim 1 or 2, characterized in that: The lower end of the first support rod (21) is fixedly connected to a lower fixed seat (23), and the first support rod (21) is rotatably connected to the sliding seat (3) around the second axis (B) through the lower fixed seat (23); the upper end of the first support rod (21) is fixedly connected to an upper fixed seat (24), and the first support rod (21) is rotatably connected to the push rod assembly (4) around the third axis (C) through the upper fixed seat (24).

4. The stroller according to claim 3, characterized in that: The second locking assembly (7) comprises a second locking groove (71) arranged on the sliding seat (3); a second locking pin (72) which can slide therein and can engage with or disengage from the second locking groove (71) is arranged in the lower fixed seat (23); the second locking pin (72) is connected to the transmission member (8); and a second spring (73) which can push the second locking pin (72) to return to its original position is also arranged between the lower fixed seat (23) and the second locking pin (72).

5. The baby stroller according to claim 3, characterized in that: The first locking assembly (6) comprises a first locking groove (61) arranged on the upper fixed seat (24); a first locking pin (62) which can slide therein and can engage with or disengage from the first locking groove (61) is arranged in the push rod assembly (4); a driving assembly (63) which can pull the first locking pin (62) out of the first locking groove (61) is arranged on the push rod assembly (4); and a first spring (64) which can push the first locking pin (62) to return to its original position is also arranged between the first locking pin (62) and the push rod assembly (4).

6. The stroller according to claim 5, characterized in that: The driving assembly (63) comprises an operating block (631) which is disposed on the upper end of the push rod assembly (4) and is exposed to the outside. A first pull rope (632) is disposed between the operating block (631) and the first locking pin (62) and is capable of pulling the first locking pin (62) out of the first locking groove (61) when the operating block (631) moves relative to the push rod assembly (4).

7. The stroller according to claim 6, characterized in that: The push rod assembly (4) comprises a rod body (41), a connecting seat (42) is provided at the lower end of the rod body (41), a protrusion (43) protruding toward one side thereof is provided on the connecting seat (42), the push rod assembly (4) is rotatably connected to the upper fixed seat (24) around the third axis (C) through the protrusion (43), the first locking pin (62) and the first spring (64) are arranged in the connecting seat (42), the upper end of the rod body (41) is provided with a cross bar (44) connected to the middle part thereof, the two ends of the cross bar (44) are provided with handles (45) extending forward, the operating block (631) is connected to the cross bar (44), and the upper end of the seat pocket (5) is connected to the handle (45).

8. The stroller according to claim 7, characterized in that: There are two operating blocks (631) located on both sides of the rod body (41), each operating block (631) is rotatably connected to the cross bar (44), and there are two first pull ropes (632) respectively connected between the operating block (631) and the first locking pin (62).

9. The stroller according to claim 4, characterized in that: The transmission member (8) comprises a rotating seat (81) rotatably connected to the upper fixed seat (24) around a third axis (C); the rotating seat (81) is provided with a pushing portion (82) which can be pushed by the push rod assembly (4) when the push rod assembly (4) is rotated and folded relative to the upper fixed seat (24); and a second pull rope (83) is provided between the eccentric position of the rotating seat (81) and the second locking pin (72) and can pull the second locking pin (72) out of the second locking groove (71) when the rotating seat (81) rotates.

10. The stroller according to claim 7, characterized in that: The crossbar (44) is also provided with a rotating bracket (91) which can rotate relative to the crossbar, and the rotating bracket (91) is provided with a sunshade roof (92).

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