CN216833857U - a children's stroller - Google Patents

Abstract

The utility model discloses a children's shallow, include: bottom sprag frame that can fold, bottom sprag frame includes the front leg and rotates the back leg of connecting on the front leg around first axis A, all be connected with the wheel subassembly on front leg and the back leg, and still rotate around second axis B on the bottom sprag frame and be connected with the vaulting pole, be equipped with between bottom sprag frame and the vaulting pole and drive the first drive assembly that the front leg drawn close to the back leg when the vaulting pole rotates to draw close to the bottom sprag frame, still be connected with between bottom sprag frame and the vaulting pole and rotate the seat frame that draws close to the bottom sprag frame when the vaulting pole rotates to draw close to the bottom sprag frame, and bottom sprag frame, be equipped with between seat frame and the vaulting pole and order about the seat frame to rotate the second drive assembly who draws close to the bottom sprag frame when the vaulting pole rotates to draw close to the bottom sprag frame. The utility model aims at overcoming the defects of the prior art and providing a child cart which has simple structure and is convenient to fold.

Description

a children's stroller

【Technical field】

The utility model relates to a children's stroller.

【Background technique】

In the prior art, the structure of the stroller is various, and the connection structures of the rods on the frame are also various, and accordingly, the working principles of folding and unfolding of the frame are also different. At present, most of the strollers need to be operated with both hands when folded and unfolded, and the folding operation is relatively inconvenient, especially when parents are holding their children, they cannot spare their hands to operate the stroller, which to a certain extent causes inconvenience to use.

The present utility model is developed based on the above-mentioned shortcomings.

【Content of utility model】

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a children's stroller with a simple structure and convenient folding.

The utility model is achieved through the following technical solutions:

A child stroller, which can be moved from an unfolded position to a folded position when the locking assembly is unlocked, comprises: a bottom support frame 1 that can be folded, the bottom support frame 1 includes a front leg 11 and is rotatably connected to a first axis A The rear leg 12 on the front leg 11, the front leg 11 and the rear leg 12 are connected with a wheel assembly 13, and the bottom support frame 1 is also connected with a strut 2 in rotation around the second axis B, so The bottom support frame 1 and the strut 2 are provided with a first drive assembly 3 that can drive the front leg 11 to move closer to the rear leg 12 when the support rod 2 rotates toward the bottom support frame 1. The bottom support frame 1 There is also a seat frame 4 that can be rotated and moved closer to the bottom support frame 1 when the support rod 2 is rotated towards the bottom support frame 1, and the bottom support frame 1, the seat frame 4 and the support rod 2 are also connected between them. A second driving assembly 5 is arranged therebetween for driving the seat frame 4 to rotate and move closer to the bottom support frame 1 when the strut 2 rotates towards the bottom support frame 1 .

The second drive assembly 5 includes a sliding sleeve 51 slidably connected to the front legs 11 , and the front end of the seat frame 4 is rotatably connected to the sliding sleeve 51 . There is a linkage rod 52 that can drive the sliding sleeve 51 to slide along the front legs 11 and drive the seat frame 4 to rotate and move closer to the bottom support frame 1 when the strut 2 rotates toward the bottom support frame 1. The four axes D are rotatably connected to the sliding sleeve 51 , and the rear end of the linkage rod 52 is rotatably connected to the strut 2 around the fifth axis E.

The seat frame 4 includes a seat frame main body 41 whose rear end is rotatably connected to the front legs 11 around the third axis C, and a front end of the seat frame main body 41 and the sliding sleeve 51 are provided with a rotatable connection between the two. The connecting rod 42, the upper end of the connecting rod 42 is rotatably connected to the seat frame body 41 around the sixth axis F, and the lower end of the connecting rod 42 is rotatably connected to the sliding sleeve 51 around the seventh axis G.

The sliding sleeve 51 is provided with an extension 511 extending downward, the linkage rod 52 includes an arc section 521 and a straight section 522 connected with the arc section 521, and the front end of the arc section 521 wraps around the arc section 521. The fourth axis D is rotatably connected to the extension portion 511 , and the rear end of the straight section 522 is rotatably connected to the strut 2 around the fifth axis E.

The first drive assembly 3 includes a first guide chute 31 provided on the rear leg 12, and the front leg 11 is provided with a second guide chute 32 that can communicate with the first guide chute 31, so the The strut 2 is provided with a third guide chute 33 that can communicate with the second guide chute 32, and the strut 2 is also connected with a third guide chute 33 and a second guide chute that can penetrate horizontally. 32 and the first guide chute 31 and the connecting pin 34 that can move in the third guide chute 33 , the second guide chute 32 and the first guide chute 31 when the strut 2 is folded relative to the bottom support frame 1 , the third guide chute 33 is provided with a first driving surface 331 that can push the connecting pin 34 to slide in the first guide chute 31 when the strut 2 moves toward the bottom support frame 1 . The second guide chute 32 is provided with a second driving surface 321 that is pressed by the connecting pin 34 when the connecting pin 34 slides to drive the front leg 11 to move toward the rear leg 12 .

The locking assembly 6 is disposed between the front leg 11 and the strut 2, and the locking assembly 6 includes a locking position 61 disposed on the front leg 11, and the strut 2 is provided with a sliding relative thereto. While the latching member 62 that is locked into or disengaged from the locking position 61 is connected with an elastic member 63 that can keep the latching member 62 in the locked state, the latching member 62 and the strut 2 are connected. An unlocking block 64 is also slidably connected inside, and a pulling cable 65 is arranged between the unlocking block 64 and the locking member 62 , and the strut 2 is also slidably connected with the unlocking block 64 that can press the unlocking block 64 to make the unlocking block 64 . The hand push rod 9 slides downward relative to the strut 2 to pull the latching member 62 .

The seat frame 4 is connected with a seat assembly 7. The seat assembly 7 includes a seat portion 71 that is detachably connected to the seat frame 4. The seat portion 71 is also connected with a backrest portion 72. A handle bar 73 is also connected to the backrest portion 72 , and the said handle bar 73 is detachably connected to the plate assembly 8 .

The plate assembly 8 includes a plate body 81 that can be mounted on the handle bar 73 , and the plate body 81 is rotatably connected with a plate body 81 that can cooperate with it to connect and fix the plate body 81 to the handle bar 73 . Connect the buckle 82, the buckle 82 is provided with a clamping position 821, and the plate body 81 is slidably connected with a clamping block 83 that can be inserted into or disengaged from the clamping position 821. An elastic member 84 is connected between the connecting block 83 and the plate main body 81 , which can keep the locking block 83 in a locked state, and the locking block 83 is further provided with a protruding operating portion 831 .

The seat portion 71 is also connected with a connecting frame 75 that can be rotated and unfolded relative to the seat portion 71 to extend the front and rear lengths of the seat portion 71 . device 76.

The backrest portion 72 is rotatably connected to the seat portion 71, the armrest bar 73 is rotatably connected to the backrest portion 72, and a connecting rod 74 is connected between the front end of the armrest bar 73 and the front end of the seat portion 71, and all the The upper end of the connecting rod 74 is rotatably connected to the front end of the armrest bar 73 , and the lower end of the connecting rod 74 is rotatably connected to the front end of the seat portion 71 .

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

1. When the stroller needs to be folded, first unlock the locking assembly, and then push the strut toward the rear leg around the second axis B. During the process of the strut rotating toward the rear leg, the first drive assembly follows the strut to move so that the The front leg moves closer to the rear leg around the first axis A, and the second drive assembly is also driven to move when the strut rotates toward the rear leg, and the seat frame also rotates relative to the bottom support frame when the second drive assembly moves. When the front legs are brought closer together, the entire stroller is completed when the struts and the rear legs are brought together, the front legs and the rear legs are brought together, and the seat frame and the front legs are brought together. Adults only need to turn the struts to move closer to the rear legs after unlocking the locking components to fold the whole vehicle, which is more convenient to operate.

2. When the child needs to eat, install the plate assembly on the handrail, and the seat group

【Description of drawings】

Fig. 1 is the perspective view of the children's stroller of the present invention;

Figure 2 is one of the side views of the stroller of the present utility model;

Fig. 3 is the second side view of the stroller of the present utility model;

Fig. 4 is the state diagram during the folding process of the stroller of the present utility model;

Fig. 5 is one of the state diagrams when the folding of the stroller of the present invention is completed;

Fig. 6 is the second state diagram when the folding of the stroller of the present utility model is completed;

Figure 7 is one of the sectional views of the stroller of the present invention;

8 is the second sectional view of the stroller of the present utility model;

Fig. 9 is the third sectional view of the stroller of the present utility model;

Figure 10 is an exploded view of the stroller of the present invention;

Figure 11 is a perspective view of a food tray and a handrail in the stroller of the present invention;

Figure 12 is a cross-sectional view of the meal tray and the handrail in the stroller of the present invention.

【Detailed ways】

Below in conjunction with accompanying drawing, the utility model is further described:

As shown in Figures 1 to 12, the present invention provides a stroller, which can be moved from the unfolded position to the folded position when the locking assembly is unlocked, comprising: a bottom support frame 1 that can be folded, and the bottom support frame 1 includes: The front leg 11 and the rear leg 12 rotatably connected to the front leg 11 around the first axis A, the front leg 11 and the rear leg 12 are both connected with wheel assemblies 13, and the bottom support frame 1 is also wound around the front leg 11. The second axis B is rotatably connected with a strut 2. Between the bottom support frame 1 and the strut 2, there is a second support that can drive the front leg 11 to move closer to the rear leg 12 when the strut 2 rotates toward the bottom support frame 1. A drive assembly 3, the bottom support frame 1 and the support rod 2 are also connected with a seat frame 4 that can be rotated towards the bottom support frame 1 when the support rod 2 is rotated towards the bottom support frame 1, and the said Between the seat frame 4 and the stay bar 2, a second drive assembly 5 is arranged to drive the seat frame 4 to rotate and move closer to the bottom support frame 1 when the stay bar 2 rotates closer to the bottom support frame 1.

When the stroller needs to be folded, first unlock the locking assembly, and then push the strut 2 to move closer to the rear leg 12 around the second axis B, and the first drive assembly 3 follows the strut during the process of rotating the strut 2 toward the rear leg 12 2 moves to make the front leg 11 move closer to the rear leg 12 around the first axis A, and also drives the second drive assembly 5 to move during the process of the strut 2 turning towards the rear leg 12. When the second drive assembly 5 moves When the seat frame 4 rotates relative to the bottom support frame 1 and moves closer to the front legs 11, until the struts 2 and the rear legs 12 move closer, the front legs 11 and the rear legs 12 move closer, and the seat frame 4 and the front legs 11 move closer, the whole child pushes the child. The collection of the car is complete. The adult only needs to turn the strut 2 to move closer to the rear leg 12 after unlocking the locking assembly to fold the whole vehicle, which is more convenient to operate.

As shown in FIG. 9 , the second drive assembly 5 includes a sliding sleeve 51 slidably connected to the front legs 11 , and the front end of the seat frame 4 is rotatably connected to the sliding sleeve 51 . The sliding sleeve 51 is connected to the sliding sleeve 51 . Between the struts 2 is a linkage rod 52 that can drive the sliding sleeve 51 to slide along the front legs 11 when the strut 2 rotates toward the bottom support frame 1, thereby driving the seat frame 4 to rotate and move closer to the bottom support frame 1. The said The front end of the linkage rod 52 is rotatably connected to the sliding sleeve 51 around the fourth axis D, and the rear end of the linkage rod 52 is rotatably connected to the strut 2 around the fifth axis E. When the strut 2 rotates toward the rear leg 12, the strut 2 drives the rear end of the linkage rod 52 to move closer to the rear leg 12, and the rear end of the linkage rod 52 rotates relative to the strut 2 around the fifth axis E, so that the front end of the linkage rod 52 pushes the sliding The sleeve 51 slides along the front leg 11 , and the seat frame 4 connected to the sliding sleeve 51 gradually moves closer to the front leg 11 .

As shown in FIGS. 5 to 5 , the seat frame 4 includes a seat frame body 41 , the rear end of which is rotatably connected to the front legs 11 around the third axis C. A seat frame body 41 is provided between the front end of the seat frame body 41 and the sliding sleeve 51 . There is a connecting rod 42 that can be rotatably connected with the two. The upper end of the connecting rod 42 is rotatably connected to the seat frame body 41 around the sixth axis F, and the lower end of the connecting rod 42 is rotatably connected to the sliding sleeve around the seventh axis G. 51 on. When the sliding sleeve 51 slides along the front leg 11, the sliding sleeve 51 drives the lower end of the connecting rod 42 to move, the connecting rod 42 rotates relative to the sliding sleeve 51 around the seventh axis G, and the upper end of the connecting rod 42 is relative to the seat frame body around the sixth axis F 41 is rotated to pull the front end of the seat frame main body 41 toward the front leg 11, and the rear end of the seat frame main body 41 is rotated relative to the front leg 11 around the third axis C so that the seat frame main body 41 is gradually moved closer to the front leg 11, thereby completing the seat frame 4 Fold the front legs 11 closer together.

As shown in FIG. 9 , the sliding sleeve 51 is provided with an extension portion 511 extending downward, the linkage rod 52 includes an arc-shaped section 521 and a straight section 522 connected with the arc-shaped section 521 , and the arc-shaped section 521 is The front end of the shaped segment 521 is rotatably connected to the extension portion 511 around the fourth axis D, and the rear end of the straight segment 522 is rotatably connected to the strut 2 around the fifth axis E. The extension portion 511 and the arc-shaped section 521 cooperate so that the linkage rod 52 has enough space and top pressure when the strut 2 is folded towards the rear leg 12 so that the sliding sleeve 51 can slide down along the front leg 11 without jamming. In the dead state, the seat frame 4 can be folded more smoothly when the front legs 11 are moved closer together.

As shown in FIG. 10 , the first drive assembly 3 includes a first guide chute 31 provided on the rear leg 12 , and the front leg 11 is provided with a second guide chute 31 that can communicate with the first guide chute 31 . The guide chute 32, the strut 2 is provided with a third guide chute 33 that can communicate with the second guide chute 32, and the strut 2 is also connected with a third guide chute 33 that can transversely penetrate , the second guide chute 32 and the first guide chute 31 and can be in the third guide chute 33 , the second guide chute 32 and the first guide chute 31 when the strut 2 is folded relative to the bottom support frame 1 The movable connecting pin 34, the third guide chute 33 is provided with a first drive that can push the connecting pin 34 to slide in the first guide chute 31 when the strut 2 moves toward the bottom support frame 1 The second guide chute 32 is provided with a second driving surface 321 which is pressed by the connecting pin 34 when the connecting pin 34 slides to drive the front leg 11 toward the rear leg 12 . When the rotating strut 2 rotates toward the rear leg 12, the third guide chute 33 on the strut 2 follows the movement, so that the first driving surface 331 presses the connecting pin 34 and slides in the first guide chute 31. When the connecting pin 34 slides in the first guide chute 31, it will gradually press against the second driving surface 321 of the second guide chute 32. At this time, the front leg 11 gradually rotates relative to the rear leg 12 and moves closer to the rear leg 12. , when the strut 2 is close to the rear leg 12 and the front leg 11 is close to the rear leg 12, the entire stroller is completed. The adult only needs to unlock the locking assembly and then push the strut 2 to move closer to the rear leg 12 .

As shown in FIG. 7 , the locking assembly 6 is disposed between the front leg 11 and the strut 2 , and the locking assembly 6 includes a locking position 61 disposed on the front leg 11 , and the strut 2 There is a latching member 62 that can slide relative to the latching member 62 to be engaged or disengaged from the locking position 61. The latching member 62 and the strut 2 are connected with an elastic member 63 that can keep the latching member 62 in a latched state. The support rod 2 is also slidably connected with an unlocking block 64, a cable 65 is provided between the unlocking block 64 and the locking member 62, and the support rod 2 is also slidably connected with an unlocking block that can be pressed against the top. 64 so that the unlocking block 64 slides downward relative to the strut 2 to pull the hand push rod 9 on which the latch 62 slides. When the stroller needs to be folded, the locking assembly 6 needs to be unlocked, and the pusher push rod 9 slides relative to the support rod 2. At this time, the hand push rod 9 pushes the unlocking block 64 to make the unlocking block 64 slide relative to the support rod 2. When sliding, the unlocking block 64 pulls the locking member 62 to slide so that the locking member 62 is disengaged from the locking position 61 . At this time, the locking assembly 6 is also unlocked, and the strut 2 can be rotated toward the rear leg 12 , and the front leg 11 is also closed. The rear legs 12 can be turned closer.

As shown in FIG. 1 and FIG. 11 , the seat frame 4 is connected with a seat assembly 7 , and the seat assembly 7 includes a seat portion 71 detachably connected to the seat frame 4 , and the seat portion 71 also has a seat portion 71 . A backrest part 72 is connected, and a handle bar 73 is also connected to the backrest part 72 , and a plate assembly 8 is detachably connected to the handle bar 73 . When the child needs to eat, the plate assembly 8 is installed on the armrest 73, and the seat assembly 7 can also be used as a dining chair.

As shown in FIG. 12 , the plate assembly 8 includes a plate body 81 that can be mounted on the handle bar 73 , and the plate body 81 is rotatably connected with the plate body 81 , which can cooperate with it to connect and fix the plate body 81 . To the connection buckle 82 on the handrail 73, the buckle 82 is provided with a clamping position 821, and the plate body 81 is slidably connected with a clamping block that can be clamped into or out of the clamping position 821 83. An elastic member 84 is connected between the clamping block 83 and the main body 81 of the dinner plate, which can keep the clamping block 83 in a locked state. The clamping block 83 is also provided with a protruding operating portion 831. . When the plate assembly 8 needs to be removed, the operation part 831 is operated. When the operation part 831 is operated, the engaging block 83 is driven to slide relative to the plate main body 81 . At this time, the engaging block 83 is connected from the engaging position on the connecting buckle 82 . When the 821 is disengaged, the connecting buckle 82 rotates relative to the main body 81 of the dinner plate. At this time, the free end of the connecting buckle 82 falls, and the adult can remove the main body 81 of the plate from the handle bar 73 .

As shown in FIG. 2 , the seat portion 71 is also connected with a connecting frame 75 that can be rotated and unfolded relative to it to extend the front and rear lengths of the seat portion 71 . A locking device 76 for interlocking. After unlocking the locking device 76, the connecting frame 75 can be unfolded from below the seat portion 71 to extend the front and rear length of the seat portion 71, and the legs can be placed in the connecting frame 75 when the child is riding, which is safer and more comfortable when riding, When the connecting frame 75 is not to be used, the locking device 76 is unlocked, and then the connecting frame 75 is turned over to the underside of the seat portion 71 .

As shown in FIG. 6 , the backrest portion 72 is rotatably connected to the seat portion 71 , the armrest bar 73 is rotatably connected to the backrest portion 72 , and the front end of the armrest bar 73 and the front end of the seat portion 71 are connected with a A connecting rod 74 is connected, and the upper end of the connecting rod 74 is rotatably connected to the front end of the armrest bar 73 , and the lower end of the connecting rod 74 is rotatably connected to the front end of the seat portion 71 . The seat assembly 7 can also be folded, which can reduce the volume occupied during storage.

Claims (10)

Claims 1. A stroller capable of moving from an unfolded position to a folded position when a locking assembly is unlocked, characterized in that it comprises: a foldable bottom support frame (1), the bottom support frame (1) comprising front legs (11) and a rear leg (12) rotatably connected to the front leg (11) around the first axis (A), the front leg (11) and the rear leg (12) are both connected with wheel assemblies (13) , and the bottom support frame (1) is also rotatably connected with a support rod (2) around the second axis (B), and a support rod (2) is provided between the bottom support frame (1) and the support rod (2). A first drive assembly (3) that can drive the front leg (11) to move closer to the rear leg (12) when the rod (2) is rotated toward the bottom support frame (1), the bottom support frame (1) and the strut ( 2) is also connected with a seat frame (4) that can be rotated towards the bottom support frame (1) when the strut (2) is rotated towards the bottom support frame (1), and the bottom support frame (1) , between the seat frame (4) and the strut (2), there is a second device that drives the seat frame (4) to rotate towards the bottom support frame (1) when the strut (2) rotates towards the bottom support frame (1). Drive assembly (5). 2. The stroller according to claim 1, characterized in that: the second drive assembly (5) comprises a sliding sleeve (51) slidably connected to the front leg (11), and the seat frame (4) The front end is rotatably connected to the sliding sleeve (51), and between the sliding sleeve (51) and the strut (2), there is a device between the sliding sleeve (51) and the strut (2) that can be driven when the strut (2) rotates toward the bottom support frame (1). The sliding sleeve (51) slides along the front leg (11) to drive the seat frame (4) to rotate toward the bottom support frame (1) to move closer to the linkage rod (52), the front end of the linkage rod (52) is around the fourth axis ( D) rotatably connected to the sliding sleeve (51), and the rear end of the linkage rod (52) is rotatably connected to the strut (2) around the fifth axis (E). 3. The stroller according to claim 2, characterized in that: the seat frame (4) comprises a seat frame main body (41) whose rear end is rotatably connected to the front leg (11) around the third axis (C). ), the front end of the seat frame body (41) and the sliding sleeve (51) are provided with a connecting rod (42) that can be rotatably connected to the two, and the upper end of the connecting rod (42) is around the sixth axis (F ) is rotatably connected to the seat frame main body (41), and the lower end of the connecting rod (42) is rotatably connected to the sliding sleeve (51) around the seventh axis (G). 4. The stroller according to claim 2, characterized in that: the sliding sleeve (51) is provided with a downwardly extending extension portion (511), and the linkage rod (52) comprises an arc-shaped segment (521) and a straight line segment (522) connected with the arc segment (521), and the front end of the arc segment (521) is rotatably connected to the extension (511) around the fourth axis (D), and the The rear end of the straight segment (522) is rotatably connected to the strut (2) around the fifth axis (E). 5. The stroller according to claim 1, characterized in that: the first drive assembly (3) comprises a first guide chute (31) provided on the rear leg (12), and the front The leg (11) is provided with a second guide chute (32) which can communicate with the first guide chute (31), and the strut (2) is provided with a second guide chute (32) which can communicate with the second guide chute (32). the third guide chute (33), the strut (2) is also connected with the third guide chute (33), the second guide chute (32) and the first guide chute (31) ) and can move in the third guide chute (33), the second guide chute (32) and the first guide chute (31) when the strut (2) is folded relative to the bottom support frame (1) A pin shaft (34), the third guide chute (33) is provided with a connecting pin shaft (34) that can push the connecting pin shaft (34) on the first guide chute when the strut (2) moves toward the bottom support frame (1). The first driving surface (331) slides inside (31), the second guide chute (32) is provided with the connecting pin (34) when the connecting pin (34) slides and is pressed by the connecting pin (34) to drive the front legs (11) A second driving surface (321) that is brought closer to the rear leg (12). 6. The stroller according to claim 1, characterized in that: the locking assembly (6) is arranged between the front leg (11) and the strut (2), and the locking assembly (6) It comprises a locking position (61) arranged on the front leg (11), and the said strut (2) is provided with a locking piece (62) which can slide relative to the locking position (61) to be engaged or disengaged from the locking position (61). An elastic member (63) capable of keeping the locking member (62) in a locked state is connected between the locking member (62) and the strut (2), and the strut (2) is also slidably connected with an elastic member (63). The unlocking block (64) is provided with a pull cable (65) between the unlocking block (64) and the locking member (62), and the support rod (2) is also slidably connected with a top-pressing unlocking block ( 64) so that the unlocking block (64) slides downward relative to the strut (2), thereby pulling the sliding hand push rod (9) of the locking member (62). 7. The stroller according to claim 1, characterized in that: the seat frame (4) is connected with a seat assembly (7), and the seat assembly (7) comprises a detachable connection to the seat frame ( 4) on the seat part (71), the seat part (71) is also connected with a backrest part (72), the backrest part (72) is also connected with a handrail (73), the handrail A plate assembly (8) is detachably connected to the rod (73). 8. The stroller according to claim 7, characterized in that: the dinner plate assembly (8) assembly comprises a dinner plate body (81) that can be mounted on the handle bar (73), and the dinner plate The main body (81) is rotatably connected with a connecting buckle (82) that can cooperate with it to connect and fix the plate main body (81) to the handrail (73), and the buckle (82) is provided with a clamping position (821), and the plate body (81) is slidably connected with a snap block (83) that can be snapped into or out of the snap position (821), and the snap block (83) is connected to the plate body. An elastic member (84) capable of keeping the latching block (83) in a latched state is connected between (81), and the latching block (83) is further provided with a protruding operating portion (831). 9. The stroller according to claim 7, characterized in that: the seat portion (71) is also connected with a connecting frame (75) that can be rotated and unfolded relative to the seat portion (71) to extend the front and rear lengths of the seat portion (71), A locking device (76) capable of mutually locking the connecting frame (75) and the seat portion (71) is arranged between the connecting frame (75) and the seat portion (71). 10. The stroller according to claim 7, wherein the backrest portion (72) is rotatably connected to the seat portion (71), and the handrail (73) is rotatably connected to the backrest portion (72). ), a connecting rod (74) is connected between the front end of the handrail (73) and the front end of the seat portion (71), and the upper end of the connecting rod (74) is rotatably connected to the front end of the handrail (73), so The lower end of the connecting rod (74) is rotatably connected to the front end of the seat portion (71).

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