CN216994473U

CN216994473U - Children's barrow

Info

Publication number: CN216994473U
Application number: CN202220958701.6U
Authority: CN
Inventors: 唐凌伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-07-19
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a child stroller, which comprises a foldable bottom support frame, wherein wheels are arranged at the lower end of the bottom support frame, an upper support frame capable of bearing a seat component is connected onto the bottom support frame, the upper support frame comprises a push rod component capable of rotating relative to the bottom support frame and being folded onto the bottom support frame in a closing manner, a transverse support component is connected at the lower end of the push rod component, a lower connecting part is arranged at the upper end of the bottom support frame, an upper connecting part which is rotatably connected with the lower connecting part around a vertical axis and enables the upper support frame to rotate relative to the bottom support frame in the horizontal plane direction is arranged on the transverse support component, a first lock positioning part is arranged on at least one side of the bottom support frame, which is positioned on at least one side of the upper connecting part, and a second locking part capable of being locked with the corresponding first lock positioning part is arranged on at least one side of the upper support frame, which is positioned on the lower connecting part, and is positioned on the upper support frame. The utility model has simple structure and good stability.

Description

Children's barrow

[ technical field ] A

The utility model relates to a child stroller.

[ background ] A method for producing a semiconductor device

Child strollers are common products in the child's growth process. Present children's shallow generally includes folding bottom sprag frame, be connected with the upper portion support frame that is used for bearing the weight of the seat subassembly on the bottom sprag frame, switching-over around in order to realize the seat subassembly, the relative bottom sprag frame of seat subassembly is generally taken to the upper portion support frame rotatory on the horizontal plane direction, its concrete structure is that the upper end middle part at the bottom sprag frame sets up down the connecting seat, set up the connecting seat in the lower extreme middle part of upper portion support frame, realize the rotatable coupling of upper portion support frame and bottom sprag frame through last connecting seat and lower connecting seat, and locking mechanical system between upper portion support frame and the bottom sprag frame sets up between last connecting seat and lower connecting seat equally. Therefore, the supporting point of the upper supporting frame of the baby stroller is only supported at the position of the lower connecting seat, the upper half part of the baby stroller is easy to shake, and the stability is not high.

Therefore, the present invention has been made in view of the above disadvantages.

[ Utility model ] A method for manufacturing a semiconductor device

The utility model aims to overcome the defects of the prior art and provides the stroller with a simple structure and good stability.

The utility model is realized by the following technical scheme:

a children's barrow, which comprises a foldable bottom supporting frame 1, wherein the lower end of the bottom supporting frame 1 is provided with wheels 1a, the bottom support frame 1 is connected with an upper support frame 3 which can bear the seat component 2, the upper support frame 3 comprises a push rod component 31 which can rotate relative to the bottom support frame 1 and is folded to the bottom support frame 1, the lower end of the push rod component 31 is connected with a transverse supporting piece 32, the upper end of the bottom supporting frame 1 is connected with a lower connecting part 11, the transverse supporting member 32 is provided with an upper connecting part 321 which is rotatably connected with the lower connecting part 11 around a vertical axis A so that the upper supporting frame 3 can rotate in the horizontal plane direction relative to the lower supporting frame 1, a first locking position 41 is arranged on at least one side of the lower connecting part 11 on the bottom support frame 1, the upper support frame 3 is provided with a second locking portion 42 at least one side of the upper connecting portion 321, and the second locking portion can be locked with the corresponding first locking position 41.

The bottom support frame 1 is provided with first lock positions 41 on the left and right sides of the lower connecting portion 11, and the upper support frame 3 is provided with second lock portions 42 capable of being locked with the corresponding first lock positions 41 on the left and right sides of the upper connecting portion 321.

Push rod assembly 31 and horizontal support 32 rotatable coupling, push rod assembly 31 and horizontal support 32 between be equipped with the first locking structure 33 that can lock the two, horizontal support 32 on be equipped with the bearing part 34 that is used for bearing seat subassembly 2, push rod assembly 31 on still be equipped with and make second locking part 42 and first locking position 41 unblock drive portion 35 when it rotates forward to the settlement position relative horizontal support 32.

First lock location 41 for establishing the locking groove on bottom sprag frame 1, second locking portion 42 including can be in horizontal support piece 32 from top to bottom slide and with locking groove block or the locking piece 421 that breaks away from, locking piece 421 on be equipped with the cross axle 422 that can transversely stretch into in push rod assembly 31, drive portion 35 for establishing the first drive groove that push rod assembly 31 lower extreme and can supply the cross axle 422 to get into, when push rod assembly 31 is rotated forward relative horizontal support piece 32, the cell wall in first drive groove promote cross axle 422 and make locking piece 421 withdraw from locking inslot, horizontal support piece 32 and locking piece 421 between still be equipped with first reset spring 36.

First lock location 41 be vertical setting locking groove on bottom sprag frame 1, second locking portion 42 including can be relative horizontal support piece 32 slide from top to bottom and with the locking piece 421 of locking groove block, horizontal support piece 32 on still be equipped with along the horizontal hole 51 of horizontal direction extension, bottom sprag frame 1 on be equipped with the transverse rod 52 that can block or break away from with transverse hole 51, transverse rod 52 and bottom sprag frame 1 between be equipped with the third reset spring 53 that can promote transverse rod 52 and reset, transverse rod 52 and locking piece 421 between be equipped with and to ensure that transverse rod 52 and transverse hole 51 block and make the linkage 6 that transverse rod 52 and transverse hole 51 break away from when locking piece 421 and locking groove break away from when locking piece 421.

Linkage 6 including establishing on bottom sprag frame 1 and with the communicating sliding tray of locking groove, the sliding tray in be equipped with can be in it slide from top to bottom and can push away and the gliding sliding block 61 of lapse by locking block 421 when locking block 421 and locking groove block, sliding block 61 on be equipped with and can push away the inclined plane 62 of horizontal pole 52 lateral shifting and with horizontal hole 51 block when its lapse, sliding block 61 and bottom sprag frame 1 between still be equipped with the fourth reset spring 63 that drives sliding block 61 and reset.

The bottom support frame 1 comprises a front frame 12 and a rear frame 13 rotationally connected with the front frame 12, a linkage rod 14 is arranged between the front frame 12 and the rear frame 13, the front end of the linkage rod 14 is hinged with the front frame 12, the rear end of the linkage rod 14 is provided with a transverse protruding part 15, the transverse protruding part 15 is slidably connected with a chute 16 on the rear frame 13, a locking device used for locking the bottom support frame 1 in an unfolded state is arranged between the linkage rod 14 and the rear frame 13, the locking device comprises a locking rod 71 which can slide relative to the bottom support frame 1 along with a sliding block 61 and can abut against the transverse protruding part 15 to prevent the transverse protruding part 15 from sliding along the chute 16, a second driving groove 37 communicated with the first driving groove is further arranged on the push rod assembly 31, when the push rod assembly 31 rotates backwards relative to the transverse support member 32 and is closed to the bottom support frame 1, the groove wall of the second driving groove 37 pushes the cross shaft 422 so that the locking block 421 is withdrawn from the locking groove.

The locking lever 71 and the sliding block 61 are connected in a relatively sliding manner, and a fifth return spring 72 is arranged between the locking lever and the sliding block.

A part between the push rod assembly 31 and the bottom support frame 1 is provided with a part which can prevent the push rod assembly 31 from continuing to rotate forwards when the push rod assembly 31 rotates forwards to a set position, and a limit structure 8 capable of ensuring that the upper support frame 3 and the seat assembly 2 rotate only in one direction in the horizontal plane direction, the limit structure 8 comprises a hook part 81 arranged at the lower end of the push rod component 31, a limit block 82 protruding outwards is arranged on the bottom support frame 1, the rear side of the limited block 82 is provided with an inclined wall 82a which can be pushed by the hook part 81 to enable the limited block 82 to transversely retract when the upper support frame 3 rotates relative to the bottom support frame 1 in the horizontal plane direction, a sixth reset spring 83 for pushing the limit block 82 to reset outwards is arranged between the limit block 82 and the bottom support frame 1, the front side of the limit block 82 is further provided with an abutting wall 82b which can abut against the hook part 81 to prevent the upper support frame 3 from rotating reversely after the limit block 82 is reset outwards.

The bottom support frame 1 comprises a front frame 12 and a rear frame 13 which can be unfolded or folded relative to the front frame 12, the transverse component 10 is arranged at the upper end of the front frame 12 or the rear frame 13 along the transverse direction, the first locking part 41 is arranged at the upper end of the rear frame 13, and the second locking part 42 is arranged at the lower end of the push rod component 31.

Compared with the prior art, the utility model has the following advantages: the upper supporting frame and the bottom supporting frame are rotatably connected through the upper connecting part and the lower connecting part, so that the upper supporting frame can rotate relative to the bottom supporting frame in the horizontal plane direction, and the front and back direction of the seat assembly of the baby stroller can be changed. And, at least one side that is located lower junction portion on the bottom sprag frame is provided with first lock location, and be equipped with on the upper sprag frame and correspond the complex second sticking department with first lock location, consequently, the cooperation through second sticking department and first lock location makes the upper sprag frame not only rely on this a support location of lower junction portion to support, thereby the support to the upper sprag frame has also been realized at the position that is located on the bottom sprag frame outside the lower junction portion, multi-point position support has been realized, make the upper sprag frame of children's shallow difficult rocking, good stability, and the security is higher.

[ description of the drawings ]

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a side view of the present invention;

FIG. 3 is a side view of the seat assembly of the present invention during a forward and rearward reversal;

FIG. 4 is a side view of the seat assembly of the present invention after reversing the front and rear directions;

FIG. 5 is a perspective view of the present invention with the seat assembly removed;

FIG. 6 is an exploded view of the present invention;

FIG. 7 is one of the exploded views of the components of the present invention;

FIG. 8 is a second exploded view of the components of the present invention;

FIG. 9 is a third exploded view of the components of the present invention;

FIG. 10 is four of an exploded view of the components of the present invention;

fig. 11 is a perspective view of a component of the present invention.

[ detailed description ] embodiments

The utility model is further described below with reference to the accompanying drawings:

as shown in fig. 1 to 6, a stroller comprises a foldable bottom support frame 1, wherein wheels 1a are arranged at the lower end of the bottom support frame 1, an upper support frame 3 capable of bearing a seat assembly 2 is connected to the bottom support frame 1, the upper support frame 3 comprises a push rod assembly 31 capable of rotating relative to the bottom support frame 1 and being folded on the bottom support frame 1, a transverse support member 32 is connected to the lower end of the push rod assembly 31, a lower connecting portion 11 is arranged on the bottom support frame 1, the transverse support member 32 is provided with an upper connecting portion 321 which is rotatably connected with the lower connecting portion 11 around a vertical axis a so that the upper support frame 3 can rotate relative to the bottom support frame 1 in the horizontal plane direction, at least one side of the bottom support frame 1 on which the lower connecting portion 11 is located is provided with a first lock positioning 41, and at least one side of the upper support frame 3 on which the upper connecting portion 321 is located is provided with a lock positioning 41 which can be locked with the corresponding first lock positioning 41 And a second locking portion 42. In this embodiment, the bottom bracket 1 is provided with first locking locations 41 on the left and right sides of the lower connecting portion 11, and the upper bracket 3 is provided with second locking portions 42 capable of locking with the corresponding first locking locations 41 on the left and right sides of the upper connecting portion 321. The upper support frame 3 and the bottom support frame 1 are rotatably connected through the upper connecting portion 321 and the lower connecting portion 11, so that the upper support frame 3 can rotate in the horizontal plane direction relative to the bottom support frame 1, and the front and back directions of the stroller seat assembly 2 can be changed. And, the both sides that are located lower connecting portion 11 on bottom sprag frame 1 are provided with first lock location 41, and be equipped with on the upper sprag frame 3 and correspond the complex second sticking department 42 with first lock location 41, make upper sprag frame 3 only rely on this a support position of lower connecting portion 11 to support through the cooperation of second sticking department 42 and first lock location 41, thereby the position that is located outside lower connecting portion 11 on bottom sprag frame 1 has also realized supporting upper sprag frame 1, the multiple spot support has been realized, make the upper sprag frame 3 of children's shallow difficult rocking, good stability, and the security is higher.

As shown in fig. 2 to 8, the push rod assembly 31 is rotatably connected to the transverse support member 32, a first locking structure 33 capable of locking the push rod assembly 31 and the transverse support member 32 is disposed between the push rod assembly 31 and the transverse support member 32, a bearing portion 34 for bearing the seat assembly 2 is disposed on the transverse support member 32, and a driving portion 35 capable of unlocking the second locking portion 42 and the first locking portion 41 when the push rod assembly 31 is rotated forward to a set position relative to the transverse support member 32 is further disposed on the push rod assembly 31. When the seat assembly 2 needs to be reversed back and forth, the first locking structure 33 is unlocked, then the push rod assembly 31 is rotated forwards, the push rod assembly 31 drives the second locking part 42 and the first locking part 41 to be unlocked through the driving part 35 on the push rod assembly when rotating to the set position, at this time, the upper support frame 3 can be rotated around the vertical axis A relative to the whole bottom support frame 1, so that the seat assembly 2 is reversed, after the upper support frame 3 rotates 180 degrees, the push rod assembly 31 is rotated backwards, and at this time, the second locking part 42 and the first locking part 41 are locked again and support the upper support frame 3. In this embodiment, the second locking portion 42 and the first locking portion 41 can be unlocked by rotating the push rod assembly 31 to a substantially vertical position relative to the transverse support 32.

As shown in fig. 2 to 5, a limiting structure 8 is disposed between the push rod assembly 31 and the bottom bracket 1, which can prevent the push rod assembly 31 from continuing to rotate forward when the push rod assembly 31 rotates forward to a set position, and can ensure that the upper bracket 3 and the seat assembly 2 rotate only in one direction in the horizontal direction. The limiting structure 8 prevents the push rod assembly 31 from rotating forward to a position where the second locking portion 42 and the first locking portion 41 can rotate forward, so that the operation of rotating and reversing the seat assembly 2 by the push rod assembly 3 is more convenient and stable, and the push rod assembly 31 is prevented from falling forward onto the bottom support frame 1. In addition, the limiting structure 8 also enables the upper support frame 3 to rotate only in one direction after the second locking part 42 is unlocked with the first locking position 41, thereby facilitating the operation of a user.

As shown in fig. 2, fig. 3 and fig. 7, the limiting structure 8 includes a hook 81 disposed at the lower end of the push rod assembly 31, the bottom support frame 1 is provided with a limiting block 82 protruding outward, the rear side of the limiting block 82 is provided with an inclined wall 82a which can be pushed by the hook 81 to enable the limiting block 82 to retract transversely when the upper support frame 3 rotates in the horizontal plane direction relative to the bottom support frame 1, a sixth return spring 83 which pushes the limiting block 82 to reset outward is further disposed between the limiting block 82 and the bottom support frame 1, and a support wall 82b which can be supported by the hook 81 to prevent the upper support frame 3 from rotating reversely after the limiting block 82 resets outward is further disposed at the front side of the limiting block 82. When the push rod component 31 rotates forwards to a set position, the hook part 81 abuts against the abutting wall 82b of the limiting block 82, the second locking part 42 is separated from the first locking part 41 and is unlocked, the abutting wall 82b prevents the push rod component 31 from rotating forwards continuously, and the push rod component 31 is ensured to carry the seat component 2 to rotate towards a set direction in the horizontal plane direction, so that the seat component 2 can be stably and reliably reversed. When the upper support frame 3 rotates in the horizontal direction, the hook portions 81 on both sides of the push rod assembly 2 may change positions, and the hook portions 81 may press the inclined walls 82a on the limiting blocks 82, so that the limiting blocks 82 retract, and when the hook portions 81 pass the limiting blocks 82, the abutting walls 82 may abut against the hook portions 81 to prevent the upper support frame 3 from rotating in the reverse direction.

As shown in fig. 7 to 9, the first locking structure 33 includes a first connecting seat 331 disposed on the transverse support member 32, a second connecting seat 332 rotatably connected to the first connecting seat 331 is disposed at a lower end of the push rod assembly 31, engaging grooves 333 are disposed on the first connecting seat 331 and the second connecting seat 332 along a circumferential direction, a spline 334 capable of moving transversely therein and engaging with the engaging grooves 333 of the first connecting seat 331 and the second connecting seat 332 is disposed in a space enclosed by the first connecting seat 331 and the second connecting seat 332, a rotating block 335 capable of pushing the spline 334 to disengage from the engaging groove 333 of the second connecting seat 332 during rotation is further disposed between the spline 334 and the second connecting seat 332, a plurality of inclined slots 336 are disposed on the rotating block 335 along the circumferential direction, an inclined protrusion 337 engaged with the inclined slots 336 and capable of driving the rotating block 335 to transversely push the spline 334 during rotation of the rotating block 335 is disposed on the second connecting seat 332, a pull rope 338 capable of pulling the rotating block 335 to rotate is connected to the rotating block 335, a second return spring 339 is further arranged between the spline 334 and the first connecting seat 331, and the second connecting seat 332 arranged on the driving part 35. When the direction of the seat assembly 2 needs to be changed, the pulling rope 338 is pulled, the rotating block 335 rotates, the inclined protrusion 337 on the second connecting seat 332 is matched with the inclined groove 336 on the rotating block 335 to push the rotating block 335 to move transversely, the rotating block 335 pushes the spline 334 to move transversely to be separated from the engaging groove 333 on the second connecting seat 332, at this time, the first locking structure 33 is unlocked, and the push rod assembly 31 can rotate forwards.

As shown in fig. 6 to 8, the first locking position 41 is a locking groove formed on the bottom support frame 1, the second locking portion 42 includes a locking block 421 capable of sliding up and down in the transverse support member 32 to engage with or disengage from the locking groove, the locking block 421 is provided with a transverse shaft 422 capable of transversely extending into the push rod assembly 31, the driving portion 35 is a first driving groove formed at the lower end of the push rod assembly 31 and capable of allowing the transverse shaft 422 to enter, when the push rod assembly 31 rotates forward relative to the transverse support member 32, the groove wall of the first driving groove pushes the transverse shaft 422 to enable the locking block 421 to withdraw from the locking groove, and a first return spring 36 is further arranged between the transverse support member 32 and the locking block 421. When push rod assembly 31 rotates forward, the groove wall of the first driving groove pushes against transverse shaft 422, and transverse shaft 422 with locking block 421 withdraws from the locking groove to unlock through the change of the distance between the first driving groove and the rotating shaft center of push rod assembly 31.

As shown in fig. 6 and 7, the first locking position 41 is a locking groove vertically disposed on the bottom support frame 1, the second locking portion 42 includes a locking block 421 capable of sliding up and down relative to the transverse support member 32 to be engaged with the locking groove, the transverse support member 32 is further provided with a transverse hole 51 extending in the transverse direction, the bottom support frame 1 is provided with a transverse rod 52 capable of being engaged with or disengaged from the transverse hole 51, a third return spring 53 capable of pushing the transverse rod 52 to return is disposed between the transverse rod 52 and the bottom support frame 1, and a linkage member 6 capable of ensuring that the transverse rod 52 is engaged with the transverse hole 51 when the locking block 421 is engaged with the locking groove and the transverse rod 52 is disengaged from the transverse hole 51 when the locking block 421 is disengaged from the locking groove is disposed between the transverse rod 52 and the locking block 421. Therefore, the transverse rod 52 is locked with the transverse hole 51 in the transverse direction while the second locking part 42 is locked with the first locking part 41 in the vertical direction, so that the upper support frame 3 of the stroller is more stable, and the safety of the stroller is better ensured.

As shown in fig. 6, 7 and 10, the linkage member 6 includes a sliding groove (not shown) disposed on the bottom support frame 1 and communicated with the locking groove, a sliding block 61 capable of sliding up and down in the sliding groove and pushed by the locking block 421 to slide down when the locking block 421 is engaged with the locking groove, the sliding block 61 is provided with an inclined surface 62 capable of pushing the transverse rod 52 to move transversely to engage with the transverse hole 51 when the sliding block 61 slides down, and a fourth return spring 63 for returning the sliding block 61 is further disposed between the sliding block 61 and the bottom support frame 1. When the second locking part 42 moves downwards to be clamped into the first locking position 41, the second locking part 42 pushes the sliding block 61 to slide downwards, the sliding block 61 pushes the transverse rod 52 to move transversely through the inclined surface 62 on the sliding block to be locked with the transverse hole 51 in the sliding process, the upper support frame 3 is ensured to be locked on the bottom support frame 1 in the transverse direction and the longitudinal direction, and the stability of the upper support frame 1 is ensured. When the second locking portion 42 moves upward to withdraw from the first locking position 41, the fourth return spring 63 urges the slide block 61 to move upward, the inclined surface 62 releases the lateral rod 52, and the third return spring 53 urges the lateral rod 52 to withdraw from the lateral hole 51.

As shown in fig. 2, 6, 10 and 11, the bottom bracket 1 includes a front frame 12 and a rear frame 13 capable of being unfolded or folded with respect to the front frame 12, a transverse member 10 extending transversely is provided at an upper end of the front frame 12 or the rear frame 13, the lower connecting portion 11 is provided at the transverse member 10, the first locking portion 41 is provided at an upper end of the rear frame 13, and the second locking portion 42 is provided at a lower end of the push rod assembly 31. Therefore, the lower connecting portion 11 of the cross member 10 on the bottom support frame 1 supports the upper support frame 2 at the middle position of the stroller in the left-right transverse direction, and the cooperation of the first locking portion 41 and the second locking portion 42 enables the bottom support member 1 to support the upper support frame 2 at both sides of the stroller, so as to form a supporting structure with multiple positions and multiple fulcrums, thereby ensuring the stability and safety of the stroller.

As shown in fig. 2, 10 and 11, further, the bottom bracket 1 includes a front frame 12 and a rear frame 13 rotatably connected to the front frame 12, a linkage rod 14 is disposed between the front frame 12 and the rear frame 13, a front end of the linkage rod 14 is hinged to the front frame 12, a transverse protrusion 15 is disposed at a rear end of the linkage rod 14, the transverse protrusion 15 is slidably connected to a sliding slot 16 of the rear frame 13, a locking device for locking the bottom bracket 1 in an unfolded state is disposed between the linkage rod 14 and the rear frame 13, the locking device includes a locking rod 71 capable of sliding along the sliding block 61 relative to the bottom bracket 1 and abutting against the transverse protrusion 15 to prevent the transverse protrusion 15 from sliding along the sliding slot 16, and the locking rod 71 is slidably connected to the sliding block 61, and a fifth return spring 72 is disposed therebetween, the push rod assembly 31 is further provided with a second driving groove 37 communicated with the first driving groove, and when the push rod assembly 31 rotates backwards relative to the transverse support member 32 and is close to the bottom support frame 1, the groove wall of the second driving groove 37 pushes the transverse shaft 422 to enable the locking block 421 to withdraw from the locking groove. When the stroller is required to be folded, it is in the first locking configuration 33. When the stroller needs to be folded, the first locking structure 33 is unlocked, then the push rod assembly 31 is rotated backwards to make the push rod assembly 31 close to the rear frame 13, in the process, the groove wall of the second driving groove 37 pushes the transverse shaft 422, so that the transverse shaft 422 carries the locking block 421 to move upwards, at this time, the locking block 421 is separated from the first locking position 41, the sliding block 61 carries the locking rod 71 to move upwards under the action of the fourth return spring 63, in the process, the transverse rod 52 is separated from the transverse hole 51, the locking rod 71 does not abut against the bulge 15 any more, at this time, the upper end of the bottom support frame 1 only needs to be lifted upwards, under the gravity action of the front frame 12, the front frame 12 rotates towards the rear frame 13 to close, and the bulge 15 slides downwards in the sliding groove 16. During the unfolding process of the child, the front frame 12 is rotated to unfold, then the push rod assembly 31 is rotated to unfold, when the push rod assembly 31 is unfolded to the proper position, the cross shaft 422 falls into the low position of the second driving groove 37, the first return spring 36 drives the locking hole 42 to return and is clamped into the first locking position 41, and at the moment, the sliding block 61 and the locking rod 71 are pushed downwards, so that the child stroller is locked in the unfolded state. When the user first unfolds push rod assembly 31, locking rod 71 is pushed to move downwards, then when front frame 12 rotates, projection 15 pushes against the side wall of locking rod 71, so that locking rod 71 slides relative to sliding block 61, and when projection 15 moves to the setting position of slide groove 16 and does not push against locking rod 71 any more, fifth return spring 72 pushes locking rod 71 to return to abut against projection 15 again, thereby locking the position of projection 15 in slide groove 16. Therefore, when the stroller is unfolded, the entire stroller can be unfolded smoothly regardless of whether the push rod assembly 31 is unfolded first or the front frame 12 is unfolded first.

Claims

1. A stroller, characterized in that: comprises a foldable bottom support frame (1), wheels (1a) are arranged at the lower end of the bottom support frame (1), an upper support frame (3) capable of bearing a seat component (2) is connected onto the bottom support frame (1), the upper support frame (3) comprises a push rod component (31) which can rotate relative to the bottom support frame (1) and is folded onto the bottom support frame (1), a transverse support component (32) is connected with the lower end of the push rod component (31), a lower connecting part (11) is arranged at the upper end of the bottom support frame (1), an upper connecting part (321) which is rotatably connected with the lower connecting part (11) around a vertical axis (A) so that the upper support frame (3) can rotate relative to the bottom support frame (1) in the horizontal plane direction is arranged on the transverse support component (32), and a first locking location (41) is arranged on at least one side of the bottom support frame (1) and positioned on the lower connecting part (11), and a second locking part (42) which can be locked with the corresponding first locking positioning part (41) is arranged on the upper supporting frame (3) and positioned on at least one side of the upper connecting part (321).

2. The stroller of claim 1, wherein: bottom sprag frame (1) on and be located the left and right sides of lower connecting portion (11) and all be equipped with first locking location (41), upper strut frame (3) on and be located the left and right sides of upper connecting portion (321) all be equipped with second sticking department (42) that can fix a position (41) kayser with corresponding first locking.

3. Child stroller according to claim 1 or 2, characterized in that: push rod subassembly (31) and horizontal support piece (32) rotatable coupling, push rod subassembly (31) and horizontal support piece (32) between be equipped with first locking structure (33) that can lock the two, horizontal support piece (32) on be equipped with bearing part (34) that are used for bearing seat subassembly (2), push rod subassembly (31) on still be equipped with and to make second locking part (42) and first locking location (41) unblock drive division (35) when it rotates forward to the settlement position relative horizontal support piece (32).

4. The stroller of claim 3, wherein: first locking portion (41) for establishing the locking groove on bottom sprag frame (1), second locking portion (42) including can be in horizontal support piece (32) slide from top to bottom and with locking groove block or the locking piece (421) that break away from, locking piece (421) on be equipped with horizontal cross axle (422) that can transversely stretch into in push rod assembly (31), drive portion (35) for establishing push rod assembly (31) lower extreme and can supply the first drive groove of cross axle (422) entering, when push rod assembly (31) relative horizontal support piece (32) rotate forward, the cell wall in first drive groove promote cross axle (422) and make locking piece (421) withdraw from locking inslot, horizontal support piece (32) and locking piece (421) between still be equipped with first reset spring (36).

5. The stroller of claim 4, wherein: the first locking position (41) is a locking groove vertically arranged on the bottom support frame (1), the second locking part (42) comprises a locking block (421) which can slide up and down relative to the transverse supporting part (32) and is clamped with the locking groove, the transverse supporting piece (32) is also provided with a transverse hole (51) extending along the transverse direction, a transverse rod (52) which can be clamped or separated from the transverse hole (51) is arranged on the bottom support frame (1), a third return spring (53) capable of pushing the transverse rod (52) to return is arranged between the transverse rod (52) and the bottom support frame (1), and a linkage piece (6) which can ensure that the transverse rod (52) is clamped with the transverse hole (51) when the locking block (421) is clamped with the locking groove and ensure that the transverse rod (52) is separated from the transverse hole (51) when the locking block (421) is separated from the locking groove is arranged between the transverse rod (52) and the locking block (421).

6. The stroller of claim 5, wherein: linkage piece (6) including establishing on bottom sprag frame (1) and with locking the communicating sliding tray of groove, the sliding tray in be equipped with can be in it slide from top to bottom and can push away and gliding sliding block (61) down by locking piece (421) when locking piece (421) and locking groove block, sliding block (61) on be equipped with and can push away horizontal pole (52) lateral shifting and inclined plane (62) with horizontal hole (51) block when its downward slip, sliding block (61) and bottom sprag frame (1) between still be equipped with fourth reset spring (63) that drive sliding block (61) reset.

7. The stroller of claim 6, wherein: the bottom support frame (1) comprises a front frame (12) and a rear frame (13) rotatably connected with the front frame (12), a linkage rod (14) is arranged between the front frame (12) and the rear frame (13), the front end of the linkage rod (14) is hinged with the front frame (12), a transverse protruding part (15) is arranged at the rear end of the linkage rod (14), the transverse protruding part (15) is slidably connected with a sliding groove (16) on the rear frame (13), a locking device used for locking the bottom support frame (1) in an unfolding state is arranged between the linkage rod (14) and the rear frame (13), the locking device comprises a locking rod (71) which can slide relative to the bottom support frame (1) along with the following of a sliding block (61) and can abut against the transverse protruding part (15) to prevent the transverse protruding part (15) from sliding along the sliding groove (16), a second driving groove (37) communicated with the first driving groove is further arranged on the push rod assembly (31), when the push rod assembly (31) rotates backwards relative to the transverse supporting piece (32) to be close to the bottom supporting frame (1), the groove wall of the second driving groove (37) pushes the transverse shaft (422) to enable the locking block (421) to withdraw from the locking groove.

8. The stroller of claim 7, wherein: the locking rod (71) and the sliding block (61) can be connected in a relatively sliding mode, and a fifth return spring (72) is arranged between the locking rod and the sliding block.

9. Child stroller according to claim 1 or 2, characterized in that: a limiting structure (8) which can prevent the push rod assembly (31) from continuously rotating forwards when the push rod assembly (31) rotates forwards to a set position and can ensure that the upper support frame (3) and the seat assembly (2) only rotate towards one direction in the horizontal plane direction is arranged between the push rod assembly (31) and the bottom support frame (1), the limiting structure (8) comprises a hook part (81) arranged at the lower end of the push rod assembly (31), the bottom support frame (1) is provided with a limiting block (82) protruding outwards, the rear side of the limiting block (82) is provided with an inclined wall (82a) which can be pushed by the hook part (81) to enable the limiting block (82) to transversely retract when the upper support frame (3) rotates relative to the bottom support frame (1) in the horizontal plane direction, and a sixth reset spring (83) which can push the limiting block (82) to reset outwards is also arranged between the limiting block (82) and the bottom support frame (1), the front side of the limiting block (82) is also provided with an abutting wall (82b) which can abut against the hook part (81) after the limiting block (82) is reset outwards to prevent the upper support frame (3) from rotating reversely.

10. Child stroller according to claim 1 or 2, characterized in that: the bottom support frame (1) comprises a front frame (12) and a rear frame (13) which can be unfolded or folded relative to the front frame (12), a transverse component (10) transversely extending is arranged at the upper end of the front frame (12) or the upper end of the rear frame (13), a lower connecting part (11) is arranged on the transverse component (10), a first locking part (41) is arranged at the upper end of the rear frame (13), and a second locking part (42) is arranged at the lower end of a push rod assembly (31).