CN216861566U - stroller - Google Patents

Abstract

The utility model discloses a children's stroller, which comprises a frame with unfolded and folded states, a front wheel assembly and a rear wheel assembly arranged at the bottom of the frame. The bracket, the push rod bracket, and the bottom link extending in the front-rear direction, the upper part of the front bracket is rotatably connected with the upper part of the rear bracket, the rear bracket is rotatably connected with a sliding piece, and the push rod bracket can slide relatively along the extension direction of its own length. The front part of the bottom link is rotatably connected to the front bracket, and the rear part of the bottom link is rotatably connected to the lower part of the push rod frame. When the frame is in a folded state, the height of the push rod frame is lowered and The front bracket, the rear bracket and the bottom link are folded together in the front-rear direction. When the seat device of the child stroller is installed on the frame, a distance can be formed between the push rod frame and the seat device, so as to ensure that when the child sits on the seat device, the user can perform the reversing operation of the seat device.

Description

stroller

technical field

The utility model relates to a children's stroller.

Background technique

As one of the necessary items for families with children, the stroller provides great convenience for people to carry small children for outdoor activities. In order to facilitate the user to take care of children or other needs, the seat device of the stroller can generally be Reversing the use, that is, the child can sit and stand facing forward or sitting facing backward. However, in the prior art, some strollers need to disassemble the seat device from the frame when changing direction, and then install it on the frame after adjusting the direction, which is laborious to change direction; there are also some strollers. Although the seat device can realize the reversal of the seat device without removing the seat device from the frame, the distance between the seat device and the push rod is small, and the child needs to be carried away from the seat device before the reversal can be realized.

SUMMARY OF THE INVENTION

The purpose of the utility model is to provide a new type of stroller for children in order to overcome the defects of the prior art.

In order to achieve the above object, the technical scheme adopted by the present utility model is:

A children's stroller includes a frame with an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly arranged at the bottom of the frame, and in the unfolded state, the frame includes front and rear wheels extending obliquely in the up-down direction. A bracket, a rear bracket and a push rod frame, and a bottom link extending in the front-rear direction, wherein the front wheel assembly is arranged at the bottom of the front bracket, and the rear wheel assembly is arranged at the bottom of the rear bracket, so The upper part of the front bracket is rotatably connected with the upper part of the rear bracket, and a sliding member is rotatably connected to the rear bracket,

The push rod frame can be relatively slidably connected to the sliding piece along the extension direction of its own length, the front part of the bottom link is rotatably connected to the front bracket, and the rear part of the bottom link is connected to the The lower part of the push rod frame is rotatably connected. When the vehicle frame is in a folded state, the height of the push rod frame is lowered and the front bracket, the rear bracket and the bottom link are folded together in the front-rear direction.

Preferably, the rear bracket comprises a left rear support rod and a right rear support rod which are respectively arranged on the left and right sides and extend in the up-down direction, and are arranged between the left rear support rod and the right rear support rod and extend along the left and right sides. A crossbar extending in the direction, wherein the upper part of the left rear support rod is rotatably connected with the upper part of the front bracket around a first axis, and the upper part of the right rear support rod is connected with the upper part of the front bracket around a second axis rotatably connected, the axis line of the first shaft and the axis line of the second shaft respectively extend obliquely along the left and right directions, and the left rear support rod and the right rear support rod can be opposed to each other along the left and right directions respectively. It is slidably connected to the cross bar, and when the frame is in the unfolded state, the left rear strut extends from top to bottom obliquely to the left, and the right rear strut extends from top to bottom obliquely to the right; when When the frame is in a folded state, the lower part of the left rear support rod and the lower part of the right rear support rod are respectively folded toward the middle along the left and right directions.

Preferably, a first chute and a second chute extending in the left-right direction and spaced apart are provided on the crossbar, and the left rear support rod can be relatively rotatable and slidable through the first slide. In the second chute, the right rear support rod can be relatively rotated and slidably inserted through the second chute.

Preferably, the sliding member is rotatably connected to the cross bar around the first rotation center line, and the push rod bracket is located between the left rear support rod and the right rear support rod along the left and right directions, and the The front part of the bottom link is rotatably connected with the front bracket around the second rotation center line, the rear part of the bottom link is rotatably connected with the lower part of the push rod frame around the third rotation center line, and the first A rotation center line, a second rotation center line and a third rotation center line are parallel to each other;

And/or, the front bracket has two front support rods that are arranged parallel to each other and both extend in the up-down direction, the bottom link also has two left and right sides respectively, and the front rods of the two bottom links are The rear parts of the two bottom links are rotatably connected with the front struts on the corresponding side, and the rear parts of the two bottom links are rotatably connected with the lower part of the push rod frame around the same rotation center line.

Preferably, the vehicle frame further includes a seat mechanism, and the seating mechanism includes at least a seat frame. When the vehicle frame is in an unfolded state, the seat frame is located above the front frame and/or on the rear frame. Above; when the vehicle frame is in a folded state, the seat frame is folded on the front side of the front bracket, and when the vehicle frame is in an unfolded state, the seat frame and the push rod frame are in the front and rear A space for the occupant's legs to pass through is formed in the direction.

Further, the seat mechanism further includes a front link and a rear link arranged in tandem, the front link is rotatably connected between the front part of the seat frame and the front bracket, the The rear link is rotatably connected between the rear part of the seat frame and the upper part of the front bracket, and when the frame is in an unfolded state, the front link and the rear link are supported on the seat between the frame and the front bracket, so that the seat frame is vertically positioned above the front bracket and the rear bracket; when the frame is in a folded state, the front link and the The rear link is folded forwardly and folded between the front bracket and the seat frame.

Further, the seat frame is provided with a seat frame locking member, the seat frame locking member is rotatably connected to the seat frame around a rotating shaft, and the seat frame locking member has a position located below the axis of the rotating shaft. There is a locking part on the front bracket, and there is a matching part on the front bracket that cooperates with the locking part. When the seat frame locking member is in a locked state, the locking part and the matching part are engaged with each other and fixed; When the seat frame locking member is in an unlocked state, the locking portion is disengaged from the matching portion, wherein the locking portion is in the shape of a hook, and the matching portion is a boss capable of engaging and hooking the locking portion.

Further, the stroller further includes a seat device, the seat device is rotatably provided on the seat frame around a rotation center line extending in an up-down direction, and the seat device has a positive use on the seat frame. state and reverse use state, a reversing locking mechanism for locking the seat device in the forward use state or the reverse use state is further provided between the seat frame and the seat device, The reversing locking mechanism includes a reversing locking piece provided on the seat device, and the reversing locking piece can be fitted on the seat frame.

Further, the seat device has an unfolded state and a folded state, the seat device is further provided with a seat locking mechanism for locking the seat device in the unfolded state, and a useful An unlocking mechanism for unlocking the seat frame lock during the process of unlocking the seat locking mechanism when the seat device is in the forward use state, wherein:

The seat frame locking member further has an unlocking portion located above the axis of the rotating shaft, the seat device at least has a seat supported on the seat frame, and the unlocking mechanism includes a relatively sliding arrangement in the front-rear direction. An unlocking handle on the seat, a pressing block abutting above the unlocking portion, and a pressing block disposed between the unlocking handle and the pressing block and driving the pressing block to move up and down when the unlocking handle moves back and forth linkage.

Another technical solution adopted by the present invention is: a children's stroller, comprising a frame in an unfolded state, a front wheel assembly and a rear wheel assembly at the bottom of the frame, and in the unfolded state, the frame includes a A front bracket, a rear bracket and a push rod frame extending in the up-down direction, the front wheel assembly is arranged at the bottom of the front bracket, the rear wheel assembly is arranged at the bottom of the rear bracket, the front bracket and the rear bracket are arranged at the bottom of the rear bracket. The upper part of the bracket is connected, and the push rod bracket extends upward and backward obliquely from the middle or lower part of the rear bracket, and the vehicle frame further includes a seat bracket arranged above the front bracket and/or the rear bracket There is a space between the seat frame and the push rod frame along the front-rear direction for the occupant's legs to pass through.

Due to the application of the above-mentioned technical solutions, the present utility model has the following advantages compared with the prior art: in the stroller of the present utility model, the front support, the rear support and the push rod frame are respectively inclined and extended along the up and down direction, and the upper part of the front support and the The upper part of the rear bracket is rotatably connected, the rear bracket is rotatably connected with a sliding piece, and the push rod frame can be relatively slidably connected with the sliding piece along the extending direction of its own length. When the frame is in the unfolded state, the push rod frame is located in the middle of the rear bracket The distance between the push rod frame and the upper part of the front bracket and the upper part of the rear bracket in the front-rear direction is relatively large, so that when the seat device is installed on the frame, sufficient space can be formed between the push rod frame and the seat device. The distance ensures that when the child sits on the seat device, the user can also perform the reversing operation of the seat device.

Description of drawings

Accompanying drawing 1 is the three-dimensional structure schematic diagram of the stroller of the present utility model, wherein, the seat device is in the forward use state;

Accompanying drawing 2 is the side view of the stroller in accompanying drawing 1;

Accompanying drawing 3 is the partial enlarged view of A place in accompanying drawing 2;

Accompanying drawing 4 is the rear view of the stroller in accompanying drawing 1;

Accompanying drawing 5 is the sectional view along B-B direction of accompanying drawing 4;

Accompanying drawing 6 is the three-dimensional structure schematic diagram of the seat mechanism and seat device in accompanying drawing 5;

Figure 7 is a side view of the seat mechanism and seat device in Figure 6;

Accompanying drawing 8 is the partial enlarged view of C place in accompanying drawing 7;

Accompanying drawing 9 is the partial enlarged view of D place in accompanying drawing 8;

10 is a schematic three-dimensional structure diagram of the stroller of the present invention, wherein the seat device is in a reversed use state;

Figure 11 is a side view of the stroller in Figure 10;

12 is a schematic three-dimensional structure diagram of the stroller of the present invention when it is in a semi-folded state;

Figure 13 is a schematic three-dimensional structure diagram of the stroller in Figure 12 from another perspective;

Figure 14 is a rear view of the stroller in Figure 13;

15 is a schematic three-dimensional structure diagram of the stroller of the present invention when it is in a fully folded state;

Figure 16 is a side view of the stroller in Figure 15;

FIG. 17 is a schematic three-dimensional structure diagram of the stroller in FIG. 15 when it is in another viewing angle;

in:

100, frame; 200, front wheel assembly; 300, rear wheel assembly;

1. Front bracket; 1a. Matching part (boss); 11. Front support rod;

2. Rear bracket; 21. Left rear strut; 22. Right rear strut; 23. Cross bar; 231, First chute; 232, Second chute;

3. Push rod holder; 31. Handle;

4. Bottom connecting rod;

5. Sliding parts;

6. Seat mechanism; 61. Seat frame; 61a, rotating shaft; 611, seat locking piece; 611a, locking part; 611b, unlocking part; 612, torsion spring; 613, locking plate; rod; 63, rear connecting rod;

7. Seat device; 7a, eccentric shaft; 71, reversing lock; 72, seat; 721, limit protrusion; 73, front strut; 74, backrest rod; 75, upper frame; 76, connecting rod;

8. Unlocking mechanism; 81. Unlocking handle; 82. Pressing block; 821. First drive slope; 822, Guide groove; 83, Linkage; 831, Second drive slope;

a, the first axis; b, the second axis; c, the first rotation center line; d, the second rotation center line; e, the third rotation center line; f, the third axis; g, the fourth axis.

Detailed ways

The technical solutions of the present utility model will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.

The following directional terms such as "front", "rear", "left", and "right" are all defined with reference to the "front" direction of the user's face when the user pushes the stroller.

Referring to a child stroller shown in the drawings, it includes a frame 100 having an unfolded state and a folded state, a front wheel assembly 200 and a rear wheel assembly 300 disposed at the bottom of the frame 100. In the unfolded state, the frame 100 includes The front bracket 1 , the rear bracket 2 and the push rod frame 3 extending obliquely in the up-down direction, and the bottom link 4 extending in the front-rear direction, wherein the front wheel assembly 200 is arranged at the bottom of the front bracket 1 , and the rear wheel assembly 300 is arranged at the bottom of the front bracket 1 . At the bottom of the rear bracket 2, the upper part of the front bracket 1 is rotatably connected with the upper part of the rear bracket 2, the rear bracket 2 is rotatably connected with a sliding member 5, and the push rod frame 3 can be relatively slidable along the extending direction of its own length with the sliding member. 5 Connection, in this embodiment, the upper end of the push rod frame 3 has a handle 31, which is convenient for the user to push/pull the stroller. In the state, the length of the push rod frame 3 is shortened and the occupied space is reduced. The front part of the bottom link 4 is rotatably connected to the front bracket 1, and the rear part of the bottom link 4 is rotatably connected to the lower part of the push rod frame 3. When the frame 100 is in the folded state, the height of the push rod frame 3 is lowered and the height of the push rod frame 3 is lowered. The front bracket 1, the rear bracket 2, and the bottom link 4 are folded together in the front-rear direction, as shown in Fig. 15 to Fig. 17 for details.

Specifically, as shown in FIG. 1 to FIG. 5 , the rear bracket 2 includes a left rear support rod 21 and a right rear support rod 22 respectively disposed on the left and right sides and extending in the up-down direction. The cross bar 23 between the right rear support rods 22 and extending in the left-right direction, wherein the upper part of the left rear support rod 21 is rotatably connected with the upper part of the front bracket 1 around the first axis a, and the upper part of the right rear support rod 22 is rotated around the first axis a. The two axes b are rotatably connected to the upper part of the front bracket 1 , the axis line of the first axis a and the axis line of the second axis b respectively extend obliquely along the left and right directions, the left rear support rod 21 and the right rear support rod 22 are respectively It can be relatively slidably connected to the cross bar 23 along the left and right directions. When the frame 100 is in the unfolded state, the left rear strut 21 extends obliquely to the left from top to bottom, and the right rear strut 22 extends to the right from top to bottom. When the frame 100 is in the folded state, the lower part of the left rear support rod 21 and the lower part of the right rear support rod 22 are respectively folded toward the middle along the left and right directions. The size of the folded baby stroller in the left and right directions is smaller, as shown in FIG. 14 for details.

Referring to FIG. 1 , a first chute 231 and a second chute 232 extending in the left-right direction and spaced apart are provided on the crossbar 23 , and the left rear support rod 21 can be relatively rotated and relatively slidable through the first chute 231 and the second chute 232 . In the first chute 231 , the right rear support rod 22 passes through the second chute 232 so as to be relatively rotatable and slidable.

Referring to Figures 2 and 5, the sliding member 5 is rotatably connected to the crossbar 23 around the first rotation center line c, and the push rod frame 3 is located between the left rear support rod 21 and the right rear support rod 22 in the left-right direction. During the period, the front part of the bottom link 4 is connected to the front bracket 1 rotatably around the second rotation centerline d, and the rear part of the bottom link 4 is rotatably connected to the lower part of the push rod frame 3 around the third rotation centerline e. A rotation center line c, a second rotation center line d and a third rotation center line e are parallel to each other. Here, the sliding member 5 is specifically a sliding sleeve, and the lower rod body part of the push rod holder 3 can be inserted into the sliding sleeve in a relatively sliding manner along its own length direction.

Referring to FIG. 1 and FIG. 10, in this embodiment, the front bracket 1 has two front support rods 11 arranged parallel to each other and both extending in the up-down direction, and the bottom link 4 also has two The front parts of the two bottom links 4 are rotatably connected with the front struts 11 on the corresponding side, and the rear parts of the two bottom links 4 are rotatably connected with the lower part of the push rod frame 3 around the same rotation center line. In some other embodiments, the front strut 11 and the bottom link 4 may also be set in corresponding numbers as required, which is not specifically limited here.

Referring to FIG. 2 and FIG. 11 , the vehicle frame 100 further includes a seat mechanism 6, and the seat mechanism 6 includes at least a seat frame 61. When the vehicle frame 100 is in an unfolded state, the seat frame 61 is located above the front bracket 1 and the rear bracket. 2, in some other embodiments, the seat frame 61 can also be located above the front bracket 1 or above the rear bracket 2; when the vehicle frame 100 is in the folded state, the seat frame 61 is folded in front of the front bracket 1. On the other hand, when the vehicle frame 100 is in the unfolded state, a space for the occupant's legs to pass through is formed between the seat frame 61 and the push rod frame 3 in the front-rear direction.

12 and FIG. 13 , the seat mechanism 6 further includes a front link 62 and a rear link 63 arranged in tandem, and the front link 62 is rotatably connected to the front part of the seat frame 61 and the front bracket 1, the rear link 63 is rotatably connected between the rear part of the seat frame 61 and the upper part of the front bracket 1, when the frame 100 is in the unfolded state, the front link 62 and the rear link 63 are supported on the seat frame 61 and the front bracket 1, so that the seat frame 61 is located above the front bracket 1 and the rear bracket 2 in the vertical direction; when the frame 100 is in the folded state, the front link 62 and the rear link 63 are turned and folded forward. Between the front bracket 1 and the seat frame 61 .

Referring to Figures 7 to 9, the seat frame 61 is provided with a seat frame locking member 611, the seat frame locking member 611 is rotatably connected to the seat frame 61 around the rotating shaft 61a, and the seat frame locking member 611 has a seat frame locking member 611 located on the rotating shaft The locking portion 611a below the axis line of 61a has a matching portion 1a on the front bracket 1 that cooperates with the locking portion 611a. When the seat frame locking member 611 is in the locked state, the locking portion 611a and the matching portion 1a are engaged and fixed to each other, so that Prevent the seat mechanism 6 from turning forward; when the seat frame locking member 611 is in an unlocked state, the locking portion 611a is disengaged from the matching portion 1a, wherein: the locking portion 611a is in the shape of a hook, and the matching portion 1a is a hook that can be used for the locking portion 611a to engage with. Hanging boss 1a. In this embodiment, the seat frame 61 is further provided with a torsion spring 612 for driving the seat frame locking member 611 to rotate so as to realize the locking of the seat frame 61, that is, when the seat frame locking member 611 is converted from the locked state to the unlocked state, the seat frame is locked The torsion spring 612 is driven by the torsion spring 612 to deform. When the seat frame locking member 611 is converted from the unlocked state to the locked state, the torsion spring 612 drives the seat frame locking member 611 to rotate to keep the seat frame 61 locked.

The stroller further includes a seat device 7, the seat device 7 is rotatably provided on the seat frame 61 around the rotation center line extending in the up-down direction, and the seat device 7 has a forward use state and a reverse use state on the seat frame 61. In the forward use state, the child sits and stands on the seat device 7 and faces forward; in the reverse use state, the child sits and stands on the seat device 7 and faces rearward. When the seat device 7 is rotated 180° around the rotation center line extending in the up-down direction, the switching between the forward use state and the reverse use state can be realized.

Between the seat frame 61 and the seat device 7 is also provided a reversing locking mechanism for locking the seat device 7 in a forward use state or a reverse use state, and the reversing locking mechanism includes a reversing locking mechanism provided on the seat device 7 . The locking piece 71 and the reversing locking piece 71 can be engaged with the seat frame 61 in a matched manner. Specifically, as shown in FIG. 6 , the seat frame 61 further includes a lock plate 613 disposed on the lower side of the seat device 7 , and a matching groove 613 a is formed on the outer peripheral portion of the lock plate 613 . When the seat device 7 is in the forward use state In the reverse use state, the reversing locking member 71 is clamped in the matching groove 613a. In this embodiment, the lock plate 613 is in the shape of a disc, and two sets of matching grooves 613a are provided. When the grooves 613a are engaged, the seat device 7 is in one of a forward use state and a reverse use state, and when the reversing locking member 71 is engaged with another set of matching grooves 613a, the seat device 7 is in another use state. Of course, in some other embodiments, more sets of matching grooves 613a arranged at intervals may also be provided on the outer peripheral portion of the locking plate 613, so as to realize the multi-directional reversal of the seat device 7 . It should be noted that, when the stroller of this embodiment is in a reversed use state, a space for the occupant's legs to pass through can still be formed between the seat frame 61 and the push rod frame 3 .

The seat device 7 itself has an unfolded state and a folded state. The seat device 7 is further provided with a seat locking mechanism (not shown in the figure) for locking the seat device 7 in the unfolded state, and for locking the seat device 7 in the normal state. The unlocking mechanism 8 for unlocking the seat frame locking member 611 in the process of unlocking the seat locking mechanism in the use state.

Specifically, the seat frame locking member 611 also has an unlocking portion 611b located above the axis line of the rotating shaft 61a, the seat device 7 at least has a seat 72 supported on the seat frame 61, and the unlocking mechanism 8 includes a relatively slidable along the front-rear direction. The unlocking handle 81 on the seat, the pressing block 82 abutting above the unlocking portion 611b, and the linkage 83 disposed between the unlocking handle 81 and the pressing block 82 and driving the pressing block 82 to move up and down when the unlocking handle 81 moves back and forth . In this embodiment, as shown in FIG. 9 , the pressing block 82 has a first driving slope 821 , the linkage 83 has a second driving slope 831 , and the first driving slope 821 and the second driving slope 831 cooperate with each other. When the driving slope 821 and the second driving slope 831 slide relative to each other, the pressing block 82 can ascend/descend in the up-down direction. The pressing block 82 is also provided with a guide groove 822 . The length of the guide groove 822 extends in the up-down direction. The seat 72 is provided with a limit protrusion 721 , and the limit protrusion 721 is inserted into the guide groove 822 .

Referring to FIG. 1 , the seat device 7 further includes a front stay 73 , a backrest bar 74 , and an upper frame 75 . The upper frame 75 is located above the seat 72 , and the upper end of the front stay 73 and the upper frame 75 rotate. Connection, the lower end of the front stay 73 is connected to the front end of the seat 72 in rotation, the lower end of the backrest bar 74 is rotatably connected to the rear end of the seat 72 around the third axis f, the upper frame 75, the front stay 73, Between the backrest bar 74 and the seat 72, a sitting space in which the occupant can sit can be formed. In this embodiment, a connecting rod 76 is also provided between the unlocking handle 81 and the seat device 7 , one end of the connecting rod 76 is rotatably connected to the lower end of the backrest rod 74 around the fourth axis g, and the backrest rod 74 is rotated around the third axis When f rotates, the fourth axis f can rotate around the third axis e, and the other end of the connecting rod 76 is rotatably connected to the unlocking handle 81 . In this way, when the backrest rod 74 rotates, the connecting rod 76 is driven to rotate, and the connecting rod 76 drives the unlocking handle 81 to slide.

It should be noted that, when the stroller needs to be folded, the seat device 7 needs to be switched to the forward use state first, and then the seat locking mechanism is unlocked, so that the backrest bar 74 rotates forward around the third axis f, and the first The fourth axis g rotates around the third axis f. During this process, the connecting rod 76 , the unlocking handle 81 , the linkage 83 , the pressing block 82 , and the unlocking portion 611 b are linked together to unlock the seat frame locking member 611 .

The specific method for unfolding and folding of the stroller of the present embodiment is described in detail below:

Referring to Figure 1, Figure 2, Figure 10 and Figure 11, when the stroller is deployed, both the frame 100 and the seat device 7 are in a deployed state, and the seat device 7 is in a forward use state, if necessary Switch the seat device 7 to the reverse use state, disengage the reversing locking piece 71 from the matching groove 613a, turn the seating device 7 to make it rotate 180° relative to the seat frame 61, and then disengage the reversing locking piece 71 and the matching groove 613a mate to achieve reversing locking.

Referring to Figures 12 to 17, when the stroller needs to be folded, first switch the seat device 7 to the forward use state, specifically, disengage the reversing locking member 71 and the matching groove 613a, and put the seat The device is rotated 180°, and then the reversing locking member 71 and the matching groove 613a are matched with each other to achieve locking; the seat locking mechanism is unlocked, and the seat device 7 is folded. During this process, the fourth axis g wraps around the third axis f rotates, the connecting rod 76 drives the unlocking handle 81 to slide backward, so that the linkage 83 moves backward, the linkage 83 drives the pressing block 82 to move downward, and the pressing block 82 pushes the seat locking member 611 to rotate, so that the seat frame 61 is unlocked; Rotate the seat frame 61, so that the front link 62 and the rear link 63 are rotated and folded forward until the seat frame 61 is folded to the front side of the front bracket 1; The direction is shortened, so that the push rod frame 3 is rotated and retracted toward the bottom link 4, that is, the angle between the push rod frame 3 and the bottom link 4 is reduced, and the sliding member 5 slides up along the push rod frame 3. At the same time, the rear The bracket 2 is rotated and folded toward the front bracket 1, the angle between the rear bracket 2 and the front bracket 1 is reduced, and the distance between the two groups of rear wheel assemblies 300 is reduced until the two groups of rear wheel assemblies 300 are retracted on the two groups of front wheels. between components 200.

When the stroller needs to be re-deployed, pull the push rod frame 3, on the one hand, the push rod frame 3 can be extended, and on the other hand, the push rod frame 3 can be rotated and unfolded relative to the bottom link 4. The push rod frame 3 slides down, the rear frame 2 rotates and unfolds relative to the front frame 1; the seat frame 61 is rotated backward until the seat frame 61 is vertically positioned above the front frame 1 and the rear frame 2; the backrest bar 74 is rotated, The backrest bar 74 is rotated and unfolded relative to the seat 72. During this process, the fourth axis g rotates around the third axis f, the connecting rod 76 drives the unlocking handle 81 to slide forward, and the torsion spring 612 drives the seat locking member 611 to rotate, so as to realize the rotation of the seat locking member 611. The locking of the seat frame 61, when the seat unit 7 is fully unfolded, locks the seat unit 7 in the unfolded state by the seat locking mechanism.

To sum up, in the stroller of the present embodiment, the front bracket 1 , the rear bracket 2 and the push rod bracket 3 are respectively inclined and extended in the up-down direction, and the upper part of the front bracket 1 and the upper part of the rear bracket 2 are rotatably connected. A sliding member 5 is rotatably connected to the upper part, and the push rod frame 3 can be relatively slidably connected to the sliding member 5 along the extending direction of its own length. A space can be formed between them to ensure that when the child sits on the seat device 7, the user can perform a reversing operation on the seat device 7; at the same time, when the frame is folded, the height of the push rod frame 3 is reduced, and the front bracket 1, The rear bracket 2 and the bottom link 4 are mutually folded in the front-rear direction, the folding operation is simple, and the folded stroller takes up less space; in addition, the seat device 7 can be folded when it is in the forward use state, which further reduces folding The space occupied by the stroller in the rear.

The above-mentioned embodiments are only to illustrate the technical concept and characteristics of the present invention, and the purpose thereof is to enable those who are familiar with the technology to understand the content of the present invention and implement accordingly, and cannot limit the protection scope of the present invention with this. All equivalent changes or modifications made according to the spirit of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A children's stroller, comprising a frame with an unfolded state and a folded state, a front wheel assembly and a rear wheel assembly arranged at the bottom of the frame, wherein the frame includes a front wheel assembly and a rear wheel assembly in the unfolded state. A front bracket, a rear bracket and a push rod frame extending obliquely in the up-down direction, and a bottom link extending in the front-rear direction, wherein the front wheel assembly is arranged at the bottom of the front bracket, and the rear wheel assembly is arranged at the bottom of the front bracket. The bottom of the rear bracket, the upper part of the front bracket is rotatably connected with the upper part of the rear bracket, and a sliding member is rotatably connected to the rear bracket, The push rod frame can be relatively slidably connected to the sliding piece along the extension direction of its own length, the front part of the bottom link is rotatably connected to the front bracket, and the rear part of the bottom link is connected to the The lower part of the push rod frame is rotatably connected. When the vehicle frame is in a folded state, the height of the push rod frame is lowered and the front bracket, the rear bracket and the bottom link are folded together in the front-rear direction. 2 . The stroller according to claim 1 , wherein the rear bracket comprises a left rear support rod and a right rear support rod which are respectively arranged on the left and right sides and both extend in the up-down direction, and are arranged on the left rear support rod. 3 . a cross bar extending in the left-right direction between the strut and the right rear strut, wherein the upper part of the left rear strut is rotatably connected with the upper part of the front bracket around a first axis, and the right rear strut The upper part of the rod is rotatably connected with the upper part of the front bracket around the second axis, the axis line of the first axis and the axis line of the second axis respectively extend obliquely in the left-right direction, and the left rear support The rod and the right rear strut are respectively connected to the cross bar in a relatively slidable direction along the left and right directions. When the frame is in the unfolded state, the left rear strut extends from top to bottom and tilts to the left. The right rear strut extends to the right from top to bottom; when the frame is in a folded state, the lower part of the left rear strut and the lower part of the right rear strut are respectively folded to the middle along the left and right directions. 3 . The stroller according to claim 2 , wherein a first chute and a second chute extending in the left-right direction and spaced apart are provided on the cross bar, and the left rear support bar can The right rear support rod is inserted through the first chute so as to be relatively rotatable and slidable. 4 . The stroller according to claim 2 , wherein the sliding member is rotatably connected to the cross bar around the first rotation center line, and the push bar bracket is located at the left rear in the left-right direction. 5 . Between the support rod and the right rear support rod, the front part of the bottom link is rotatably connected to the front bracket around the second rotation centerline, and the rear part of the bottom link rotates around the third rotation centerline The ground is connected to the lower part of the push rod frame, and the first rotation center line, the second rotation center line and the third rotation center line are parallel to each other; And/or, the front bracket has two front support rods that are arranged parallel to each other and both extend in the up-down direction, the bottom link also has two left and right sides respectively, and the front rods of the two bottom links are The rear parts of the two bottom links are rotatably connected with the front struts on the corresponding side, and the rear parts of the two bottom links are rotatably connected with the lower part of the push rod frame around the same rotation center line. 5. The stroller according to any one of claims 1 to 4, wherein the frame further comprises a seat mechanism, and the seat mechanism at least comprises a seat frame, when the frame is in an unfolded state, The seat frame is located above the front frame and/or above the rear frame; when the frame is in a folded state, the seat frame is folded on the front side of the front frame, when the frame is in a folded state In the unfolded state, a space for the occupant's legs to pass through is formed between the seat frame and the push rod frame in the front-rear direction. 6 . The stroller according to claim 5 , wherein the seat mechanism further comprises a front link and a rear link arranged in tandem, and the front link is rotatably connected to the seat. 7 . between the front part of the frame and the front bracket, the rear link is rotatably connected between the rear part of the seat frame and the upper part of the front bracket, when the frame is in the unfolded state, the The front link and the rear link are supported between the seat frame and the front bracket, so that the seat frame is located above the front bracket and the rear bracket in the vertical direction; when the vehicle When the frame is in a folded state, the front link and the rear link are turned forward and folded between the front bracket and the seat frame. 7 . The stroller according to claim 5 , wherein the seat frame is provided with a seat frame locking member, and the seat frame locking member is rotatably connected to the seat frame around a rotation axis, and the seat frame is rotatably connected to the seat frame. The seat frame locking member has a locking portion located below the axis line of the rotating shaft, and the front bracket has a matching portion that cooperates with the locking portion. When the seat frame locking member is in a locked state, the locking member When the seat frame locking member is in an unlocked state, the locking portion is disengaged from the matching portion, wherein: the locking portion is in the shape of a hook, and the matching portion is in the shape of a hook. It is a boss that can be hooked by the locking part. 8 . The stroller according to claim 7 , wherein the stroller further comprises a seat device, and the seat device is rotatably provided on the seat frame around a rotation center line extending in an up-down direction, 9 . The seat device has a forward use state and a reverse use state on the seat frame, and between the seat frame and the seat device is further provided for locking the seat device in the forward use state. Or the reversing locking mechanism in the reverse use state, the reversing locking mechanism comprises a reversing locking piece provided on the seat device, and the reversing locking piece can be engaged with the seat frame superior. 9 . The stroller according to claim 8 , wherein the seat device has an unfolded state and a folded state, and the seat device is further provided with a device for locking the seat device in the unfolded state. 10 . The seat locking mechanism, the seat device is further provided with an unlocking mechanism for unlocking the seat frame locking member during the process of unlocking the seat locking mechanism when the seat device is in the forward use state, wherein : The seat frame locking member further has an unlocking portion located above the axis of the rotating shaft, the seat device at least has a seat supported on the seat frame, and the unlocking mechanism includes a relatively sliding arrangement in the front-rear direction. An unlocking handle on the seat, a pressing block abutting above the unlocking portion, and a pressing block disposed between the unlocking handle and the pressing block and driving the pressing block to move up and down when the unlocking handle moves back and forth linkage. 10. A stroller, comprising a frame in an unfolded state, a front wheel assembly and a rear wheel assembly at the bottom of the frame, wherein in the unfolded state, the frame comprises front wheels extending in an up-down direction. A bracket, a rear bracket and a push rod frame, the front wheel assembly is arranged at the bottom of the front bracket, the rear wheel assembly is arranged at the bottom of the rear bracket, the front bracket is connected with the upper part of the rear bracket, The push rod frame extends upward and inclined rearward from the middle or lower part of the rear bracket, and the vehicle frame further includes a seat frame arranged above the front bracket and/or the rear bracket, the seat frame Between the push rod frame and the push rod frame, there is a space in the front-rear direction through which the legs of the occupant can pass.

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