CN216805567U - Children's barrow - Google Patents

Abstract

The utility model discloses a children's stroller, which can be moved from an unfolding position to a folded position after unlocking a locking device, and comprises a bottom support frame that can be folded. The bottom support frame comprises a front leg and is rotatably connected to the front leg around a first axis A The rear leg on the upper side, the front leg and the rear leg are connected with wheel assemblies, the rear leg is connected with the rotation seat around the second axis B, and the bottom support frame is connected with the support rod in rotation around the third axis C, and the support rod is connected with There is a first connecting rod that is pushed by the strut and slides relative to the rotating seat when the strut rotates toward the bottom support frame. The upper end of the first connecting rod is rotatably connected to the strut around the fourth axis D, and the first connecting rod The lower end and the front leg are rotatably connected with a linkage member that can make the front leg move closer to the rear leg when the first connecting rod slides relative to the rotating base. The purpose of the utility model is to overcome the deficiencies of the prior art and provide a children's stroller with a novel folding structure.

Description

a children's stroller

【Technical field】

The utility model relates to a children's stroller.

【Background technique】

Children's trolleys have become a common product in the process of children's growth. For the convenience of carrying or storage, the current children's trolleys are generally foldable through various link structures. The utility model provides another foldable structure to realize the folding of the children's trolley.

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

【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 novel folding structure.

The utility model is achieved through the following technical solutions:

A child stroller, which can be moved from the unfolded position to the folded position after unlocking the locking device, comprises a bottom support frame 1 that can be folded, and the bottom support frame 1 includes a front leg 11 and is rotatably connected to the front The rear leg 12 on the leg 11, the front leg 11 and the rear leg 12 are connected with a wheel assembly 13, the rear leg 12 is connected with a rotating seat 14 rotatably around the second axis B, and the bottom supports The support rod 15 is rotatably connected to the frame 1 around the third axis C. The support rod 15 is connected with a support rod 15 that is pushed by the support rod 15 and slides relative to the rotating seat 14 when the support rod 15 rotates toward the bottom support frame 1. The first connecting rod 16, the upper end of the first connecting rod 16 is rotatably connected to the strut 15 around the fourth axis D, and the lower end of the first connecting rod 16 and the front leg 11 are rotatably connected with the first connecting rod 11. When the connecting rod 16 slides relative to the rotating base 14 , the linkage 17 can make the front leg 11 move closer to the rear leg 12 .

The bottom support frame 1 is also connected with a seat assembly 2. The seat assembly 2 includes a seat post 21. The front side of the seat post 21 is rotatably connected to the front leg 11 around the fifth axis E. Between the rear side of the seat post 21 and the rear leg 12 is a second connecting rod 22 rotatably connected with the two. The upper end of the second connecting rod 22 is rotatably connected with the rear leg 12 around the sixth axis F. The lower ends of the two connecting rods 22 are rotatably connected to the rear legs around the seventh axis G.

A hand push handle 4 is rotatably connected to the support rod 15 around the ninth axis I, and a locking device 5 capable of locking the two is provided between the hand push handle 4 and the support rod 15 .

The locking device 5 includes a left connecting shell 51 arranged on the push handle 4 and a right connecting shell 52 arranged on the strut 15. The left connecting shell 51 and the right connecting shell 52 are surrounded by a space. The movable space 53, the left connecting shell 51 and the right connecting shell 52 are provided with spline grooves 54, the movable space 53 is provided with a spline 55 that can slide relative to it, and the spline 55 is connected to the right There is also a first elastic member 56 between the connecting shells 52 that can simultaneously engage the splines 55 with the spline grooves 54 of the left connecting shell 51 and the right connecting shell 52 when the stroller is in the unfolded state. Between the key 55 and the left connecting shell 51, there is also a first pressing member 57 that can push the spline 55 to slide laterally when rotating, and the left connecting shell 51 is provided with a first pressing member 57 when the first pressing member 57 rotates A first pressing protrusion 58 with an inclined surface capable of pushing the first pressing member 57 to slide laterally, and an operating member 59 is also provided on the push handle 4, and the operating member 59 is connected to the first pressing member. Connected between 57 is a first cable 50 that can pull the first pressing member 57 to rotate when the operating member 59 is operated.

The locking device is arranged between the rear leg 12 , the rotating seat 14 , the strut 15 and the first connecting rod 16 , and the locking device 6 can be folded when the locking device 5 is unlocked and the handle 4 is folded toward the strut 15 . Unlocked by the push handle 4 linkage.

The locking device 6 includes a locking position 6a provided on the first connecting rod 16, and a sliding seat 6b is slidably connected to the rotating seat 14. Or disengage the locking portion 6c of the locking position 6a, a second elastic member 6d is provided between the sliding seat 6b and the rotating seat 14 to keep the locking portion 6c in a locked state, and the sliding seat 6b is also provided with a second elastic member 6d. The protruding post 6e is penetrated to the outside of the rotating base 14, and the rear leg 12 is slidably connected with a second pushing member 6f that can push the protruding post 6e and then push the sliding base 6b to slide;

The rear leg 12 is provided with a left hinged shell 6g, the strut 15 is provided with a right hinged shell 6h, and a movable cavity 6i is enclosed between the left hinged shell 6g and the right hinged shell 6h. The movable cavity 6i is provided with a third pusher 6j that can slide laterally relative to it, and between the third pusher 6j and the second pusher 6f there is a third pusher 6j laterally slidable. When the sliding rod 6k that can push the second pusher 6f slides, there is also a fourth pusher that can push the third pusher 6j to move between the third pusher 6j and the right hinge shell 6h. Part 6l, the right hinge shell 6h is provided with a second protrusion 6m with an inclined surface that can push the fourth pusher 6l when the fourth pusher 6l rotates, and the spline 55 is connected to the right A driving member 6n that can rotate relative to the two is also connected between the shells 52, a second cable 6o is provided between the driving member 6n and the fourth pushing member 6l, and the left connecting shell 51 is provided with a second cable 6o. When the push handle 4 is rotated and folded toward the strut 15, the pushing portion 6p that can push the driving member 6n to rotate and then pull the fourth pushing member 61 to rotate, is between the third pushing member 6j and the left hinge shell 6g. There is also a return spring 6q;

The second pusher 6f is provided with a first inclined sliding surface 6r, the lower end of the sliding rod 6k is provided with a second inclined sliding surface 6s that cooperates with the first inclined sliding surface 6r, and the sliding rod 6k is provided with a second inclined sliding surface 6s. The upper end is provided with a third inclined sliding surface 6t that cooperates with the third pushing member 6j.

Between the front legs 11 and the rear legs 12, there is also an elastic band 18 that is in a taut state when the stroller is unfolded and pulls the front legs 11 toward the rear legs 12 and folds when the stroller is folded.

The lower end of the first connecting rod 16 is slidably connected to the inside of the rotating base 14 and passes through the outside of the rotating base 14 .

The armrest assembly 3 is also connected to the support rod 15, and the armrest assembly 3 includes an armrest base 31 rotatably connected to the support rod 15 around the eighth axis H and a handrail rod 32 detachably connected to the armrest base 31. .

The upper end of the first connecting rod 16 is connected to the armrest seat 31 , and the fourth axis D and the eighth axis H are coaxial.

Compared with the prior art, the present invention has the following advantages: when the stroller of the present invention is folded, the locking device is first unlocked, and then the support rod is pushed to rotate toward the rear leg, and the support rod rotates toward the rear leg during the process In the middle, the first connecting rod moves with the strut and slides in the rotating seat, and the rotating seat is pushed by the first connecting rod and rotates relative to the rear leg. At this time, the lower end of the first connecting rod slides in the rotating seat and pulls the link of the linkage The rear end moves, and the front end of the linkage member rotates relative to the front leg. At this time, the linkage member and the first connecting rod move closer to each other. During the process of the linkage member and the first connecting rod moving closer to each other, the front leg rotates relative to the rear leg and rotates toward the rear leg. close up.

【Description of drawings】

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

Fig. 2 is the side view of the utility model children's stroller;

Fig. 3 is one of the state diagrams when the stroller of the present invention is folded;

Fig. 4 is the second state diagram when the stroller of the utility model is folded;

Figure 5 is the third state diagram of the child stroller of the present invention when it is folded;

Figure 6 is the fourth state diagram of the stroller of the present invention when it is folded;

Fig. 7 is the state diagram when the folding of the stroller of the present utility model is completed;

8 is one of the exploded views of the locking device in the stroller of the present invention;

9 is the second exploded view of the locking device in the stroller of the present invention;

Figure 10 is the third exploded view of the locking device in the stroller of the present invention;

Figure 11 is one of the exploded views of the locking device in the stroller of the present invention;

Figure 12 is the second exploded view of the locking device in the stroller of the present invention;

Figure 13 is one of the state diagrams of the baby stroller of the present invention with elastic bands;

Fig. 14 is the second state diagram of the baby stroller of the present invention with an elastic band.

【Detailed ways】

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

As shown in Figures 1 to 14, the present invention provides a child stroller, which can be moved from the unfolded position to the folded position after unlocking the locking device, and includes a bottom support frame 1 that can be folded, and the bottom support frame 1 includes a front The legs 11 and the rear legs 12 rotatably connected to the front legs 11 around the first axis A, the front legs 11 and the rear legs 12 are both connected with wheel assemblies 13, and the rear legs 12 are around the second axis B A rotating seat 14 is rotatably connected, the bottom support frame 1 is rotatably connected with a support rod 15 around the third axis C, and the support rod 15 is connected with a support rod 15 that is supported when the support rod 15 rotates toward the bottom support frame 1 The first connecting rod 16 is pushed by the rod 15 and slides relative to the rotating seat 14. The upper end of the first connecting rod 16 is rotatably connected to the support rod 15 around the fourth axis D, and the lower end of the first connecting rod 16 is connected to the support rod 15. A linkage 17 is rotatably connected with the front leg 11 , which can make the front leg 11 move closer to the rear leg 12 when the first connecting rod 16 slides relative to the rotating base 14 .

When the stroller of the present invention is folded, the locking device is first unlocked, and then the support rod 15 is pushed to rotate toward the rear leg 12 . During the process of the support rod 15 to rotate toward the rear leg 12 , the first connecting rod 16 follows the support rod. 15 moves and slides in the rotating seat 14. The rotating seat 14 is pushed by the first connecting rod 16 and rotates relative to the rear leg 12. At this time, the lower end of the first connecting rod 16 slides in the rotating seat 14 and pulls the rear of the linkage 17. When the end moves, the front end of the linkage member 17 rotates relative to the front leg 11. At this time, the linkage member 17 and the first connecting rod 16 move closer to each other. During the process of the linkage member 17 and the first connecting rod 16 moving towards each other, the front leg 11 is opposite to the rear leg. 12 is turned and the rear leg 12 is turned closer.

Therefore, as shown in Figures 2 to 7, the bottom support frame 1 is also connected with a seat assembly 2, and the seat assembly 2 includes a seat post 21, and the front side of the seat post 21 is rotatably connected to the fifth axis E. On the front leg 11, a second connecting rod 22 is provided between the rear side of the seat post 21 and the rear leg 12, which is rotatably connected with the two. The upper end of the second connecting rod 22 is connected to the rear leg around the sixth axis F. 12 is rotatably connected, and the lower end of the second connecting rod 22 is rotatably connected with the rear leg around the seventh axis G. A cloth cover can be installed between the seat post 21 and the stay bar 15 to be used as a seat pocket. When the front leg 11 rotates toward the rear leg 12, the front side of the seat post 21 rotates relative to the front leg 11 around the fifth axis E, and the upper end of the second connecting rod 22 rotates relative to the seat post 21 around the sixth axis F at this time. The seventh axis G of the lower end of the rod 22 rotates relative to the rear leg 12. At this time, the front end of the seat rod 21 moves upward, and the rear end of the seat rod 21 moves downward, so that the seat rod 21 moves closer to the bottom support frame 1, thus completing the Folding of the stroller.

Therefore, as shown in FIG. 4 , the lower end of the first connecting rod 16 is slidably connected to the inside of the rotating seat 14 and passes through the outside of the rotating seat 14 . The first connecting rod 16 can slide in the rotating seat 14 to drive the rotating seat 14 to rotate relative to the rear leg 12 when it is active.

Therefore, as shown in FIG. 3 , the armrest assembly 3 is also connected to the strut 15 , and the armrest assembly 3 includes an armrest seat 31 rotatably connected to the strut 15 around the eighth axis H and detachably connected to the armrest. Handrail 32 on seat 31. The armrest assembly 3 is convenient for the child to hold when riding on the stroller, and is more secure when riding.

Therefore, as shown in FIG. 3 , the upper end of the first connecting rod 16 is connected to the armrest seat 31 , and the fourth axis D and the eighth axis H are coaxial. When the first connecting rod 16 moves down and rotates relative to the strut 15 around the first axis A, the armrest seat 31 is lifted up synchronously.

Therefore, as shown in FIG. 3 , the seat assembly 2 further includes a backrest bar 23 rotatably connected to the seat bar 21 . The backrest bar 23 can be rotated relative to the seat bar 21 and folded closer to the rear legs 12 to reduce the space occupied, and the backrest bar 23 does not need to be designed in multiple sections, and the backrest bar 23 can be folded directly to the rear legs 12. The back is small.

Therefore, as shown in FIGS. 8 to 10 , the push handle 4 is rotatably connected to the support rod 15 around the ninth axis I, and the push handle 4 and the support rod 15 are provided with a mechanism that can connect the two to each other. Locked locking device 5 . When the stroller is in the unfolded state, the locking device 5 locks the handle 4 and the strut 15 in the unfolded position.

Therefore, as shown in Figures 8 to 10, the locking device 5 includes a left connecting shell 51 provided on the hand push handle 4 and a right connecting shell 52 provided on the strut 15. The left connecting shell 51 and A movable space 53 is enclosed between the right connecting shell 52, the left connecting shell 51 and the right connecting shell 52 are provided with spline grooves 54, and the movable space 53 is provided with a spline 55 that can slide relative to it. , between the splines 55 and the right connecting shell 52, there is also a second link that enables the splines 55 to engage with the spline grooves 54 of the left connecting shell 51 and the right connecting shell 52 at the same time when the stroller is in the unfolded state. An elastic member 56, between the splines 55 and the left connecting shell 51 is further provided with a first pressing member 57 that can push the splines 55 to slide laterally during rotation, and the left connecting shell 51 is provided with When the first pressing member 57 rotates, the first pressing protrusion 58 with an inclined surface that can push the first pressing member 57 to slide laterally can be pushed. The hand push handle 4 is also provided with an operating member 59. A first cable 50 that can pull the first pressing member 57 to rotate when the operating member 59 is operated is connected between the operating member 59 and the first pressing member 57 . When the push handle 4 needs to be rotated and folded toward the strut 15, the operating member 59 is operated. After the operating member 59 is operated, the first pulling cable 50 is pulled, and the first pulling cable 50 pulls the first pressing member 57 to rotate relative to the left connecting shell 51. , the first pressing piece 57 is pressed by the first pressing protrusion 58 and slides laterally relative to the left connecting shell 51 and the right connecting shell 52 during rotation, and the first pressing piece 57 pushes the splines 55 when sliding. Laterally slide and compress the first elastic member 56 until the spline 55 is completely pushed into the right connecting shell 52, the entire locking device 5 is unlocked, and the hand push handle 4 can be rotated and folded relative to the support rod 15 .

Therefore, as shown in FIG. 2 , the locking device is provided between the rear leg 12 , the rotating seat 14 , the strut 15 and the first connecting rod 16 , and the locking device 5 is unlocked and the handle 4 is pushed toward the strut 15 . The locking device 6 can be linked and unlocked by the hand push handle 4 when it is folded closer. When the locking device 5 is unlocked, the handle 4 is rotated, and the handle 4 is linked to unlock the locking device 6 during the rotation process. At this time, the strut 15 can be rotated toward the rear leg 12, and the front leg 11 can be rotated. When the rear leg 12 is rotated and moved closer, the first connecting rod 16 can move relative to the rotating seat 14 and the strut 15 .

Therefore, as shown in FIGS. 11 to 12 , the locking device 6 includes a locking position 6a provided on the first connecting rod 16 , a sliding seat 6b is slidably connected in the rotating seat 14 , and the sliding seat 6b is slidably connected to the sliding seat 6b. There is a locking portion 6c that can be locked into or disengaged from the locking position 6a when it slides, and a second elastic member 6d is provided between the sliding seat 6b and the rotating seat 14 that can keep the locking portion 6c in a locked state, so The sliding seat 6b is also provided with a protruding column 6e that is penetrated outside the rotating seat 14, and the rear leg 12 is slidably connected with a second pushing member that can push the protruding column 6e and then push the sliding seat 6b to slide. 6f; the rear leg 12 is provided with a left hinged shell 6g, the strut 15 is provided with a right hinged shell 6h, and a movable cavity 6i is enclosed between the left hinged shell 6g and the right hinged shell 6h , the movable cavity 6i is provided with a third pusher 6j that can slide laterally relative to it, and a third pusher 6j is provided between the third pusher 6j and the second pusher 6f When sliding laterally, the sliding rod 6k that can push the second pusher 6f to slide, and between the third pusher 6j and the right hinge shell 6h is also provided with a fourth pusher that can push the third pusher 6j to move. The pusher 6l, the right hinge shell 6h is provided with a second protrusion 6m with an inclined surface that can push the fourth pusher 6l when the fourth pusher 6l rotates, and the splines 55 and The right connecting shell 52 is also connected with a driving member 6n that can rotate relative to the two. A second pulling cable 6o is arranged between the driving member 6n and the fourth pushing member 61. There is a pushing portion 6p that can push the driving member 6n to rotate and then pull the fourth pushing member 61 to rotate when the push handle 4 is rotated and folded toward the support rod 15. The third pushing member 6j and the left hinged shell 6g are provided. There is also a return spring 6q in between; the second pusher 6f is provided with a first inclined sliding surface 6r, and the lower end of the sliding rod 6k is provided with a second inclined sliding surface 6r that cooperates with the first inclined sliding surface 6r. Surface 6s, the upper end of the sliding rod 6k is provided with a third inclined sliding surface 6t that cooperates with the third pushing member 6j. When the locking device 5 is unlocked and the push handle 4 is turned toward the support rod 15, the push portion 6p on the push handle 4 rotates with the handle 4, and the push portion 6p gradually approaches and pushes against the driving member 6n. Press the driving member 6n to rotate relative to the movable space 53. At this time, the second pulling cable 6o on the driving member 6n pulls the fourth pushing member 61 to rotate relative to the right hinged shell 6h, and the fourth pushing member 61 is relative to the right hinged shell 6h. During the rotation, the fourth pusher 6l is pushed by the second protrusion 6m on the right hinged shell 6h and moves laterally relative to the right hinged shell 6h, and the fourth pusher 61 pushes during the lateral movement. The third push member 6j slides laterally relative to the left hinge shell 6g and compresses the return spring 6q. When the third push member 6j slides laterally relative to the left hinge shell 6g, the third push member 6j gradually aligns with the third push member 6j on the upper end of the sliding rod 6k. The three inclined sliding surfaces 6t contact and press the sliding rod 6k to slide downward relative to the rear leg 12. At this time, the second inclined sliding surface 6s at the lower end of the sliding rod 6k cooperates with the first inclined sliding surface 6r on the second pushing member 6f to The second pusher 6f is pushed and slid laterally relative to the rear leg 12. When the second pusher 6f slides, the second pusher 6f pushes against the protruding post 6e on the sliding seat 6b, and when the protruding post 6e is pressed Push the sliding seat 6b to slide laterally relative to the rotating seat 14, so that the locking portion 6c on the sliding seat 6b can be disengaged from the first connecting rod 16, and the second elastic member 6d is compressed and is in a compressed state. At this time, the entire locking device 6 is Unlocked, the strut 15 can rotate toward the rear leg 12 , the front leg 11 can rotate toward the rear leg 12 , the first connecting rod 16 can slide up and down relative to the rotating seat 14 and rotate relative to the strut 15 .

As shown in FIG. 1 , the front legs 11 , the rear legs 12 , the struts 15 and the push rod 4 are all made of carbon fiber materials. Lighter weight, more convenient for adults to carry.

As shown in FIGS. 13 to 14 , between the front legs 11 and the rear legs 12 is a tension state when the stroller is unfolded, and the front legs 11 are pulled closer to the rear legs 12 when the stroller is folded. Folded elastic 18. When the stroller needs to be folded, first unlock the locking device 5, and then push the handle bar 4 to fold toward the support bar 15. During the process of the handle bar 4 being close to the support bar 15, the handle bar 4 will lock the device 6. The linkage is unlocked. At this time, the elastic band 18 is restored from the taut state to the original state. During the recovery process of the elastic band 18, the elastic band 18 can pull the front leg 11 to the rear leg 12 and automatically move closer. During the process of automatic approaching, the front leg 11 drives the linkage member 17 to move closer to the rear leg 12. When the linkage member 17 moves towards the rear leg 12, the linkage member 17 pulls the first connecting rod 16 to move closer to the rear leg 12, thereby making the first connection The rod 16 pulls the support rod 15 to fold and close to the rear leg 12, so as to realize the automatic folding of the whole stroller.

Claims (10)

1. A stroller, movable from an unfolded position to a folded position after unlocking a locking device, characterized in that: including bottom sprag frame (1) that can fold, bottom sprag frame (1) include preceding leg (11) and rotate around first axis (A) and connect back leg (12) on preceding leg (11), preceding leg (11) and back leg (12) on all be connected with wheel subassembly (13), back leg (12) on rotate around second axis (B) and be connected with and rotate seat (14), bottom sprag frame (1) on rotate around third axis (C) and be connected with vaulting pole (15), vaulting pole (15) on be connected with and receive the top of vaulting pole (15) and rotate seat (14) gliding head rod (16) relatively when vaulting pole (15) rotate to bottom sprag frame (1) and draw close, head rod (16) upper end rotate around fourth axis (D) and connect on vaulting pole (15), just head rod (16) lower extreme and preceding leg (11) between rotate and be connected with and rotate seat (14) relatively at head rod (16) and rotate seat (14) slip relatively A linkage (17) which enables the front legs (11) to be drawn toward the rear legs (12) when in use.

2. The stroller of claim 1, wherein: bottom sprag frame (1) on still be connected with seat subassembly (2), seat subassembly (2) including seat pole (21), seat pole (21) front side rotate around fifth axis (E) and connect on preceding leg (11), seat pole (21) rear side and back leg (12) between be equipped with the two second connecting rod (22) of rotating and being connected, second connecting rod (22) upper end rotate around sixth axis (F) and back leg (12) and be connected, second connecting rod (22) lower extreme rotate around seventh axis (G) and back leg and be connected.

3. The stroller of claim 1, wherein: the stay bar (15) is rotatably connected with a hand push handle (4) around a ninth axis (I), and a locking device (5) capable of locking the hand push handle (4) and the stay bar (15) is arranged between the hand push handle (4) and the stay bar.

4. The stroller of claim 3, wherein: the locking device (5) comprises a left connecting shell (51) arranged on the hand push handle (4) and a right connecting shell (52) arranged on the stay bar (15), a movable space (53) is enclosed between the left connecting shell (51) and the right connecting shell (52), spline grooves (54) are formed in the left connecting shell (51) and the right connecting shell (52), splines (55) capable of sliding relative to the movable space (53) are arranged in the movable space, a first elastic piece (56) capable of enabling the splines (55) to be simultaneously clamped with the spline grooves (54) of the left connecting shell (51) and the right connecting shell (52) when the child stroller is in an unfolded state is further arranged between the splines (55) and the right connecting shell (52), and a first jacking piece (57) capable of jacking and jacking the splines (55) to transversely slide when the child stroller rotates is further arranged between the splines (55) and the left connecting shell (51), the left connecting shell (51) is provided with a first jacking protrusion (58) which has an inclined surface and can push the first jacking member (57) to transversely slide when the first jacking member (57) rotates, the hand push handle (4) is further provided with an operating member (59), and a first inhaul cable (50) which can pull the first jacking member (57) to rotate when the operating member (59) is operated is connected between the operating member (59) and the first jacking member (57).

5. The stroller of claim 4, wherein: the locking device is arranged among the rear legs (12), the rotating seat (14), the support rod (15) and the first connecting rod (16), and the locking device (6) can be unlocked by the hand push handle (4) in a linkage mode when the locking device (5) is unlocked and the hand push handle (4) is close to and folded towards the support rod (15).

6. The stroller of claim 5, wherein: the locking device (6) comprises a locking position (6a) arranged on a first connecting rod (16), a sliding seat (6b) is connected in the rotating seat (14) in a sliding manner, a locking part (6c) which can be clamped into or separated from the locking position (6a) when the sliding seat (6b) slides is arranged on the sliding seat (6b), a second elastic part (6d) which can enable the locking part (6c) to keep a clamping and locking state is arranged between the sliding seat (6b) and the rotating seat (14), a convex column (6e) penetrating out of the rotating seat (14) is further arranged on the sliding seat (6b), and a second pushing part (6f) which can push the convex column (6e) to further push the sliding seat (6b) to slide is connected on the rear leg (12) in a sliding manner;

a left hinged shell (6g) is arranged on the rear leg (12), a right hinged shell (6h) is arranged on the support rod (15), a movable cavity (6i) is defined between the left hinged shell (6g) and the right hinged shell (6h), a third pushing piece (6j) capable of transversely sliding relative to the movable cavity is arranged in the movable cavity (6i), a sliding rod (6k) capable of pushing the second pushing piece (6f) to slide when the third pushing piece (6j) transversely slides is arranged between the third pushing piece (6j) and the second pushing piece (6f), a fourth pushing piece (6l) capable of pushing the third pushing piece (6j) to move is further arranged between the third pushing piece (6j) and the right hinged shell (6h), a second protruding inclined plane (6m) is arranged on the right hinged shell (6h) and capable of pushing the fourth pushing piece (6l) when the fourth pushing piece (6l) rotates, a driving piece (6n) capable of rotating relative to the spline (55) and the right connecting shell (52) is further connected between the spline (55) and the right connecting shell, a second inhaul cable (6o) is arranged between the driving piece (6n) and the fourth pushing piece (6l), a pushing part (6p) capable of pushing the driving piece (6n) to rotate and further pulling the fourth pushing piece (6l) to rotate when the hand push handle (4) rotates and folds towards the supporting rod (15) is arranged on the left connecting shell (51), and a reset spring (6q) is further arranged between the third pushing piece (6j) and the left hinged shell (6 g);

the second pushing piece (6f) is provided with a first inclined sliding surface (6r), the lower end of the sliding rod (6k) is provided with a second inclined sliding surface (6s) matched with the first inclined sliding surface (6r), and the upper end of the sliding rod (6k) is provided with a third inclined sliding surface (6t) matched with the third pushing piece (6 j).

7. The stroller of claim 1, wherein: an elastic band (18) which is in a tight state when the baby stroller is unfolded and pulls the front leg (11) to be folded towards the rear leg (12) when the baby stroller is folded is also arranged between the front leg (11) and the rear leg (12).

8. The stroller of claim 1, wherein: the lower end of the first connecting rod (16) is connected in the rotating seat (14) in a sliding mode and penetrates out of the rotating seat (14).

9. The stroller of claim 1, wherein: the utility model discloses a handrail assembly, including vaulting pole (15), the vaulting pole (15) on still be connected with handrail subassembly (3), handrail subassembly (3) including rotate around eighth axis (H) and connect handrail seat (31) on vaulting pole (15) and can dismantle handrail pole (32) of connecting on handrail seat (31).

10. The stroller of claim 9, wherein: the upper end of the first connecting rod (16) is connected to the armrest seat (31), and the fourth axis (D) and the eighth axis (H) are coaxial.

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