CN215883785U

CN215883785U - Novel baby carriage

Info

Publication number: CN215883785U
Application number: CN202120273070.XU
Authority: CN
Inventors: 祝军旺; 肖小贤
Original assignee: Zhongshan Beicong Maternal And Infant Products Co ltd
Current assignee: Zhongshan Beicong Maternal And Infant Products Co ltd
Priority date: 2021-01-30
Filing date: 2021-01-30
Publication date: 2022-02-22
Anticipated expiration: 2031-01-30

Abstract

The utility model discloses a novel child stroller, which comprises a frame and a seat, wherein the seat can be connected to the frame in a relatively up-and-down moving manner, so that parents of the stroller can adjust the height of the seat according to the requirements, thus the parents can conveniently nurse children in the stroller, the parents can conveniently communicate with children in the stroller, and the height of the seat can be increased when the child stroller is used as a high chair during dining, so that the application range of the child stroller is wider; and the height of the seat is adjusted through the spiral transmission mechanism, so that the stepless height adjustment of the seat can be realized, and the stability of the seat during height adjustment can be kept.

Description

Novel baby carriage

Technical Field

The utility model relates to the field of infant products, in particular to a novel baby stroller.

Background

Children's strollers typically include a frame and seats mounted to the frame, some of which are integrally designed with the frame, some of which are designed to rotate relative to the frame, and some of which are reversible relative to the frame, but which are of a constant height relative to the frame regardless of the design of the seats. This design makes it inconvenient for the parents of the stroller to bend down deeply when they want to touch the child in the stroller or to communicate with the child; moreover, the child stroller with the fixed seat height can not meet the use requirements of different occasions, so that certain limitation exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects and provide a novel stroller, wherein the height of a seat of the stroller can be adjusted relative to a frame, so that the stroller is convenient to use and can be suitable for different occasions.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a novel child stroller comprises a frame and a seat, wherein the seat can be connected to the frame in a relatively up-and-down moving mode.

The seat is connected with a lifting piece extending downwards, and the lifting piece can be connected with the frame in a relatively up-down moving manner; a driving piece can be connected to the frame in a relatively rotating mode, and a corresponding spiral transmission mechanism is arranged between the lifting piece and the driving piece.

The screw transmission mechanism comprises a screw rod and a nut structure which are arranged in a matched mode, the lifting piece is provided with a screw rod, and the driving piece is provided with a corresponding nut structure; or, be provided with nut structure on the lift piece, set up corresponding screw rod on the driving piece.

The lifting piece is arranged as a connecting pipe, an annular matching piece is fixedly connected in the connecting pipe, and the annular matching piece is provided with internal threads, so that the annular matching piece is formed into the nut structure; correspondingly, the driving piece comprises a screw rod capable of rotating relative to the frame.

The frame is provided with an accommodating space extending up and down, the lower end of the connecting pipe can extend into the accommodating space in a relatively up-and-down moving manner, and at least the upper side of the screw rod extends into the accommodating space and extends into the connecting pipe to be in threaded connection with a mating piece; preferably, a first sleeve is fixed on the inner wall of the accommodating space, the first sleeve is located below the connecting pipe, the first sleeve is sleeved outside the screw rod, and the screw rod can rotate relative to the first sleeve.

The screw rod is connected with a limit nut, and the lower end of the limit nut abuts against the upper end of the first sleeve; preferably, the driving member further includes an operating member connected to the lower end of the screw rod and capable of rotating together with the screw rod, at least a portion of the operating member is located outside the lower end of the accommodating space, and a portion of the operating member located outside the lower end of the accommodating space is capable of relatively rotating and abutting against the lower end of the accommodating space.

The frame comprises an accommodating pipe extending up and down, and an accommodating space extending up and down is formed in the accommodating pipe; preferably, the driving member comprises a bolt, and a screw part of the bolt is formed as a screw of the screw transmission mechanism; the operating part comprises a head part of the bolt, a control part and an intermediate part; the bolt head, the control piece and the middle piece are relatively and fixedly connected.

The middle part of the middle part is provided with a through hole which penetrates through the middle part up and down, the upper end of the middle part is also provided with an accommodating hole which is coaxial with the through hole, the lower end of the connecting pipe can be arranged in the accommodating hole in a relatively rotating way, and the lower end of the connecting pipe is abutted against the bottom wall of the accommodating hole; the control piece is fixedly connected to the lower side of the middle piece, a containing hole is formed in the middle of the control piece, the head of the bolt penetrates through the through hole downwards and then is placed in the containing hole, and the degree of freedom of relative rotation between the head of the bolt and the control piece is zero; the lower end part of the middle piece abuts against the upper end of the outer side of the bolt head.

The utility model discloses a bolt head, including the through-hole, control piece, middleware lower extreme setting with the coaxial first annular groove of through-hole, the control piece upper end is provided with second annular groove, the part that the middleware is located the first annular groove outside is arranged in the second annular groove and with control piece fixed connection, the part that the control piece is located between accommodation hole and the second annular groove is located first annular groove, the part that the middleware is located between through-hole and the first annular groove support and lean on in the upper end in the bolt head outside.

The frame comprises a connecting seat, a front foot, a front connecting rod, a rear foot, a rear connecting rod, a containing pipe and a sliding seat, wherein the containing pipe and the sliding seat are connected to the containing pipe in a relatively up-down sliding mode, the rear upper end of the front foot and the front upper end of the rear foot are both pivoted to the connecting seat, the rear upper end of the front connecting rod and the front upper end of the rear connecting rod are both pivoted to the sliding seat, the front lower end of the front connecting rod and the front foot are connected in a relatively rotating mode, the rear lower end of the rear connecting rod and the rear foot are connected in a relatively rotating mode, and the upper end of the containing pipe is connected to the connecting seat.

The frame further comprises a front wheel seat and a rear wheel seat, the front wheel seat is connected with a front wheel, the rear wheel seat is connected with a rear wheel, the front lower end of the front foot and the front lower end of the front connecting rod are respectively pivoted at different positions of the front wheel seat, and the rear lower end of the rear foot and the rear lower end of the rear connecting rod are respectively pivoted at different positions of the rear wheel seat.

The frame further comprises a transverse member extending left and right, and the connecting seat is connected to the middle of the transverse member; or the frame also comprises a left transverse piece and a right transverse piece, and the opposite sides of the left transverse piece and the right transverse piece are connected with the connecting seat; the frame further comprises a left handle and a right handle, the lower ends of the left handle and the right handle are respectively pivoted to the left end and the right end of the transverse member, or the lower ends of the left handle and the right handle are respectively pivoted to one end, far away from the left transverse member and the right transverse member relatively.

The utility model has the beneficial effects that:

1. the height of the seat can be adjusted relative to the frame, so that parents can adjust the height of the seat according to needs, the parents can conveniently nurse children in the stroller, and the parents can conveniently communicate with children in the stroller; the different heights of the seat can be adjusted to meet the use requirements of different occasions, so that the stroller is wider in application range;

2. the height of the seat is adjusted through the screw transmission mechanism, so that the stepless height adjustment of the seat can be realized, and the stability of the seat in the vertical movement can be kept.

Drawings

FIG. 1 is a schematic plan view of the seat of the stroller of the present invention in a lowermost position;

FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1;

FIG. 3 is an enlarged schematic view of the portion B of FIG. 2;

FIG. 4 is a schematic view of the stroller seat of the present invention moving upward to an upper position;

FIG. 5 is a cross-sectional view taken along the line C-C in FIG. 4;

FIG. 6 is an enlarged schematic view of a portion D of FIG. 5;

FIG. 7 is an enlarged view of section E of FIG. 5;

FIG. 8 is a perspective view of the stroller of the present invention;

FIG. 9 is an enlarged exploded view of the connection tube, driving member and receiving tube of the stroller of the present invention;

fig. 10 is a schematic view of another perspective of the middle part of the stroller of the present invention.

Detailed Description

As shown in fig. 1 to 7, the stroller of the present invention includes a frame 100 and a seat 200, wherein the seat 200 is connected to the frame 100 to be movable up and down, so that the height of the seat 200 can be adjusted.

The seat 200 is connected with a lifting member 1 extending downwards, and the lifting member 1 can be connected with the frame 100 in a relatively up-down moving way; a driving member is relatively rotatably connected to the frame 100, and a corresponding screw transmission mechanism is disposed between the lifting member 1 and the driving member.

The screw transmission mechanism comprises a screw rod and a nut structure which are arranged in a matched mode, the lifting piece 1 is provided with a screw rod, and the driving piece is provided with a corresponding nut structure; or, be provided with nut structure on the lifting member 1, set up corresponding screw rod on the driving piece. Thus, when the screw or nut structure rotatably connected to the frame 100 is rotated, the lifting member 1 provided with the corresponding nut structure or screw moves up and down, thereby driving the seat 200 to move up and down, and thus, achieving height adjustment of the seat 200 with respect to the frame 100.

In this embodiment, the lifting member 1 is configured as a connecting pipe, an annular fitting member 2 is fixedly connected in the connecting pipe 1, and the annular fitting member 2 is provided with an internal thread 21, so that the annular fitting member 2 is formed as the nut structure; correspondingly, the driving member includes a screw 31 rotatable relative to the frame 100. The annular fitting 2 may be fixedly connected with the connecting tube 1 by welding, or the annular fitting 2 is integrally formed with the connecting tube 1, or the annular fitting 2 is fixedly connected with the connecting tube 1 by other known feasible methods.

Preferably, the frame 100 is provided with an accommodating space 101 extending vertically, the lower end of the connecting pipe 1 can extend into the accommodating space 101 relatively moving up and down, and at least the upper side of the screw 31 extends into the accommodating space 101 and extends into the connecting pipe 1 to be in threaded connection with the mating part 2.

Preferably, a first sleeve 4 is fixed on an inner wall of the accommodating space 101, the first sleeve 4 is located below the connecting pipe 1, the first sleeve 4 is sleeved outside the screw 31, and the screw 31 can rotate relative to the first sleeve 4. So set up, can avoid rocking the dislocation when the screw rod 31 is rotatory and influence the cooperation of screw rod 31 and nut structure to guarantee spiral drive mechanism's transmission stability and smoothness nature, guarantee the controllability of seat 200 height adjustment operation. The first sleeve 4 may be circular, C-shaped or other suitable shape.

In this embodiment, the screw 31 is connected with a limit nut 5, and the lower end of the limit nut 5 abuts against the upper end of the first sleeve 4. The arrangement is such that the screw 31 cannot move downward relative to the carriage 100. The driving part further comprises an operating part which is connected with the lower end of the screw rod 31 and can rotate together with the screw rod 31, at least part of the operating part is located outside the lower end of the accommodating space 101, and the part of the operating part located outside the lower end of the accommodating space can be relatively rotatably abutted against the lower end of the accommodating space 101. By such arrangement, the driving element of the utility model can rotate relative to the frame 100 and can not move up and down relative to the frame 100, namely, the screw 31 can only rotate relative to the frame 100 and can not move up and down relative to the frame 100, so that when the screw 31 rotates, only the annular fitting part 2 can be driven to move up and down, thereby ensuring the up and down movement of the seat 200, namely the up and down height adjustment of the seat 200.

The first sleeve 4 may be circular, C-shaped or other suitable shape as long as the above-mentioned functions are achieved.

The frame 100 includes an accommodating tube 102 extending up and down, the accommodating tube 102 forms the accommodating space 101 extending up and down, and the first sleeve 4 is fixedly connected to the inner wall of the accommodating tube 102. The operating member is located at least partially outside the lower end of the receiving tube 102.

In the present embodiment, the driving member includes a bolt 3, and the screw 31 of the bolt 3 is partially formed as the screw 31 of the screw transmission mechanism; the operating member comprises a head 32 of the bolt 3, a control member 6 and an intermediate member 7; the bolt head 32, the control member 6 and the intermediate member 7 are relatively fixedly connected.

A through hole 71 which penetrates through the middle part of the middle part 7 up and down is arranged, a containing hole 72 which is coaxial with the through hole 71 is also arranged at the upper end of the middle part 7, the lower end of the connecting pipe 1 can be relatively rotatably arranged in the containing hole 72, and the lower end of the connecting pipe 1 is abutted against the bottom wall of the containing hole 72; the control member 6 is fixedly connected to the lower side of the intermediate member 7, a receiving hole 61 is formed in the middle of the control member 6, the head 32 of the bolt 3 passes through the through hole 71 downwards and then is placed in the receiving hole 61, and the relative rotation freedom degree of the bolt head 32 and the control member 6 is zero, namely the bolt head 32 and the control member 6 cannot rotate relatively; the lower end of the intermediate piece 7 abuts against the upper end of the outer side of the bolt head 32, so that the bolt head 32 cannot move up and down relative to the control piece 6 and the intermediate piece 7. The arrangement is such that the bolt head 32, the control member 6 and the intermediate member 7 are relatively fixedly connected and can rotate relative to the accommodating tube 102 as a whole, thereby achieving the purpose that the driving member can be relatively rotatably connected to the frame 100 but cannot move upward relative to the frame 100.

In the present embodiment, the lower end of the intermediate member 7 is provided with a first annular groove 73 coaxial with the through hole 71, the upper end of the control member 6 is provided with a second annular groove 62, a portion 74 of the intermediate member 7 located outside the first annular groove 73 is disposed in the second annular groove 62 and is fixedly connected with the control member 6, a portion 63 of the control member 6 located between the accommodating hole 61 and the second annular groove 62 is disposed in the first annular groove 73, and a portion 75 of the intermediate member 7 located between the through hole 71 and the first annular groove 73 abuts against the upper end outside the bolt head 32. Through the structure, the bolt head 32, the control piece 6 and the middle piece 7 are connected more firmly, so that the screw rod 31 can rotate synchronously when the control piece 6 is rotated, and the accuracy of adjustment operation is further ensured.

Preferably, the bolt 3 is configured as an outer hexagon bolt, and correspondingly, the receiving hole 61 of the control member 6 is configured as a hexagon receiving hole 61, so that after the head 32 of the bolt 3 is correspondingly disposed in the receiving hole 61 of the control member 6, the bolt 3 cannot rotate relative to the control member 6, and the relative rotational freedom degree of the bolt 3 and the control member 6 is zero. The universal hexagon bolt 3 is adopted, so that the bolt 3 and the control part 6 are connected more easily and conveniently, the integral manufacture is easier, and the replacement is very convenient if needed. In other embodiments, the bolt 3 may also adopt other non-circular styles of the head 32, and correspondingly, the receiving hole 61 may be configured in a corresponding shape, which is consistent with the principle of the outer hexagon bolt 3.

The height adjustment of the stroller seat 200 of the present invention is as follows:

when the height of the seat 200 is to be adjusted, the control member 6 is rotated to drive the screw 31 to rotate, and in the case that the screw 31 only rotates relative to the frame 100 but cannot move up and down relative to the frame 100, the nut structure is driven to move up or down to drive the connecting pipe 1 to move up/down, i.e. to drive the seat 200 to move up/down relative to the frame 100, thereby adjusting the height of the seat 200.

In other embodiments, the driving member may be directly provided as a bolt 3, a portion of the screw 31 of the bolt 3 is formed as the screw 31 of the screw transmission mechanism, the head portion 32 of the bolt is formed as an operating member, an outer diameter of the head portion 32 is larger than an inner diameter of the accommodating space 101, and the head portion 32 of the bolt 3 is located outside a lower end of the accommodating space 101 and is relatively rotatably abutted against the lower end of the accommodating space 101. In this way, the screw 31 can be prevented from moving upward relative to the frame 100, and the bolt head 32 can be directly rotated when the height of the seat 200 is adjusted.

The seat 200 of the stroller of the present invention can move up and down relative to the frame 100, so that parents of the stroller can adjust the height of the seat 200 as required, and the seat can be adjusted to a lower position in a conventional stroller state; if parents want to nurse the children in the car or the parents want to communicate with the children in the car, the parents do not need to bend down deeply and only need to heighten the seat, so the use is more convenient; in addition, when parents take the children to have meals in a restaurant, the height of the seat can be increased, namely the baby stroller disclosed by the utility model is used as a high-leg seat, so that the children in the baby stroller can have meals conveniently, therefore, the baby stroller is multipurpose in one vehicle, and the application range of the baby stroller disclosed by the utility model is wider.

Moreover, the height of the seat 200 can be adjusted by adopting the screw transmission mechanism, and stepless height adjustment of the seat 200 can be realized, namely, the seat 200 can be adjusted to any height within the stroke range of the up-and-down movement of the fitting part 2, but not to a plurality of specific height grades; in addition, since the fitting member 2 is constantly moved in the vertical movement, the screw-drive type adjustment does not cause a click feeling, so that the stability of the seat 200 in the vertical movement can be maintained, and the uncomfortable feeling of the child in the seat 200 can be prevented.

Preferably, the upper end of the screw 31 is connected with a limiting member 8. When the annular engaging element 2 moves upward until the upper end of the annular engaging element abuts against the limiting element 8, the engaging element 2 cannot move upward any more, so that the connecting tube 1 cannot move upward any more, and the seat 200 also rises to the highest position. This arrangement not only allows the height adjustment of the seat 200 to be controlled, but also prevents the engagement member 2 from moving up unrestrained and disengaging from the screw 31.

In this embodiment, the limiting member 8 is configured as a screw 8, the upper end of the screw rod 32 is provided with an internal threaded hole 321 into which the screw is screwed, and after the screw 8 is connected with the internal threaded hole 321, the outer side of the head of the screw 8 is located outside the upper end of the screw rod 31. When the fitting member 2 moves upward by a certain distance, the upper end thereof abuts against the lower end of the outside of the head of the screw 8, so that the fitting member 2 cannot move upward any more. The limiting piece 8 is arranged in such a way, so that the assembly is simple and easy.

A gap is formed between the outer wall of the connecting pipe 1 and the inner wall of the accommodating space 101, a second sleeve 9 is arranged between the outer wall of the connecting pipe 1 and the inner wall of the accommodating space 101, the outer wall of the second sleeve 9 is attached to the inner wall of the accommodating space 101, and the inner wall of the second sleeve 9 is attached to the outer wall of the connecting pipe 1; the second sleeve 9 is fixedly sleeved on the outer wall of the connecting pipe 1, and the second sleeve 9 and the connecting pipe 1 can move up and down relative to the frame together; or, the second sleeve 9 is fixedly connected to the inner wall of the accommodating space 101, and the second sleeve 9 and the connecting pipe 1 can move up and down relatively. With the arrangement, the second sleeve 9 can play a role in guiding, so that the lifting piece 1 can only move up and down and cannot sway left and right relative to the frame, and the stability of the seat during height adjustment is ensured; and also

In this embodiment, the second sleeve 9 sets up to the C shape, just the 9 inner wall epirelief of C shape second sleeve is equipped with bump 91 and rib 92, and is corresponding, be provided with card hole 11 and draw-in groove 12 on the 1 pipe wall of connecting pipe, bump 91 card is gone into in the card hole 11, and in the draw-in groove 12 was gone into to rib 92 card, so, second sleeve 9 and connecting pipe 1 relatively fixed, it is also very convenient to assemble moreover. The second sleeve 9 can also be fixedly connected to the connecting tube 1 in other known and feasible ways, and the second sleeve 9 can also have other shapes, such as a circular ring shape.

In this embodiment, a T-shaped tube 10 is fixedly disposed at the upper end of the accommodating tube 102, that is, the vertical portion 1001 of the T-shaped tube 10 is inserted into the accommodating tube 102, the horizontal portion 1002 is located outside the upper end of the accommodating tube 102, and the lower end of the connecting tube 1 will first pass through the T-shaped tube 10 when penetrating into the accommodating tube 102, so that there is a distance between the outer wall of the connecting tube 1 and the inner wall of the accommodating tube 102, which is equivalent to the wall thickness of the vertical portion of the T-shaped tube 10. Therefore, the second sleeve 9 can reduce the shaking feeling of the connection pipe 1 caused by the gap, so that the seat 200 is adjusted up and down without shaking and is more stable. The illustrated tee 10 is typically made of a non-rigid material such as rubber, plastic, etc. and for strength, the connecting tube 1 and the receiving tube 102 are both made of rigid materials, so the tee 10 is provided to avoid mutual abrasion between the rigid materials.

In other embodiments, the T-shaped tube 10 may not be provided, the lower end of the connecting tube 1 directly extends into the accommodating space 101, and the outer wall of the connecting tube 1 is attached to the inner wall of the accommodating space 101, so that the second sleeve 9 does not need to be provided.

The upper end of the connection pipe 1 may be connected to the seat 200 in any known and feasible manner as long as the seat 200 can move up and down together with the connection pipe 1. For example, the upper end of the connecting pipe 1 is integrally formed with a part of the seat 200, or a fixing member is fixedly sleeved on the upper end of the connecting pipe 1, the fixing member can be fixed to the outer wall of the upper end of the connecting pipe 1 in a welding manner or an integrally formed manner, and the fixing member is fixedly connected to the seat 200 in a screw manner or the like; or the fixing piece and the seat 200 may be connected to each other in a relatively rotatable manner. The connection manner of the connection tube 1 and the seat 200 is not the utility model point of the present invention, and therefore, is not described herein.

In other embodiments (not shown), the arrangement of the screw 31 and the mating member 2 can be interchanged, that is, the seat 200 is provided with the screw 31 extending downward, the driving member includes a connecting tube 1 extending upward and downward, the mating member 2 formed as a nut structure is fixed in the connecting tube 1, the screw 31 extends into the connecting tube 1 and is in threaded connection with the mating member 2, and the connecting tube 1, that is, the rotating mating member 2, can only move upward and downward with respect to the seat 200 under the condition that the mating member 2 can only rotate relative to the seat 100 but cannot move upward and downward relative to the seat 100, so as to drive the seat 200 to move upward and downward to adjust the height of the seat 200 relative to the seat 100. In this arrangement, an operating member can be connected to the lower end of the connection pipe 1, and similarly, the operating member is at least partially located outside the lower end of the accommodating space 101, so that the connection pipe 1 can be rotated by rotating the operating member, i.e., the nut structure is rotated. The connecting tube 1 and/or the operating member can be connected to the frame 100 in any known and feasible manner and can not move up and down relative to the frame 100. Similarly, the upper end of the screw 31 can be connected to the seat 200 by any known and feasible means.

Preferably, the upper end of the lifting member 1 is connected to the lower end of the seat 200, i.e., the upper end of the connecting tube or screw is connected to the lower end of the seat 200. So that the lifter 1 can better support the seat 200.

In this embodiment, the frame 100 includes a connecting seat 103, a front leg 104, a front link 105, a rear leg 106, a rear link 107, the accommodating tube 102, and a slide seat 108 connected to the accommodating tube 102 in a relatively up-down sliding manner, the rear upper ends of the front leg 104 and the rear upper end of the rear leg 106 are pivotally connected to the connecting seat 103, the rear upper ends of the front link 105 and the rear link 107 are pivotally connected to the slide seat 108, the front lower end of the front link 105 and the front leg 104 are relatively rotatably connected, the rear lower end of the rear link 107 and the rear leg 106 are relatively rotatably connected, and the upper end of the accommodating tube 102 is connected to the connecting seat 103. With such an arrangement, when the frame is folded, the slide seat 108 can move upwards along the accommodating tube 102, and the front connecting rod 105, the front leg 104, the rear leg 106 and the connecting rod all rotate towards the position of the accommodating tube 102, so as to form an umbrella-type folding, so that the folded frame has a very small volume and is convenient to store and transport. The sliding seat 108 is located between the connecting seat 103 and the middle part 7, and when the frame is in the unfolded state, the lower end of the sliding seat 108 abuts against the upper end of the middle part 7. So configured, the sliding seat can be prevented from separating from the connecting pipe 102 when moving up and down.

Preferably, the frame 100 further includes a front wheel seat 109 and a rear wheel seat 110, the front wheel seat 109 is connected with a front wheel 111, the rear wheel seat 110 is connected with a rear wheel 112, the front lower end of the front foot 104 and the front lower end of the front connecting rod 105 are respectively pivoted to different positions of the front wheel seat 109, so as to achieve the purpose that the front lower end of the front connecting rod 105 and the front foot 104 can be relatively rotatably connected, and the pivoting position of the front lower end of the front foot 104 and the front wheel seat 109 is located on the upper side of the pivoting position of the front connecting rod 105 and the front wheel seat 109; the rear lower end of the rear leg 106 and the rear lower end of the rear connecting rod 107 are respectively pivoted to different positions of the rear wheel seat 110, so that the rear lower end of the rear connecting rod 107 and the rear leg 106 can be relatively rotatably connected, and the pivoting position of the rear lower end of the rear leg 106 and the rear wheel seat 110 is located on the upper side of the pivoting position of the rear connecting rod 107 and the rear wheel seat 110.

The frame further comprises a transverse member 113 extending left and right, and the connecting seat 103 is connected to the middle part of the transverse member 113; or, the frame further comprises a left transverse piece and a right transverse piece, and opposite sides of the left transverse piece and the right transverse piece are connected to the connecting seat 103; the frame further comprises a left handlebar and a right handlebar 114, wherein the lower ends of the left handlebar and the right handlebar 114 are respectively pivoted to the left end and the right end of the transverse member 113, or the lower ends of the left handlebar and the right handlebar 114 are respectively pivoted to the ends, relatively far away from the left transverse member and the right transverse member.

Claims

1. The utility model provides a novel children's shallow, includes frame and seat, its characterized in that: the seat can be connected with the frame in a relatively up-down moving mode, the seat is connected with a lifting piece extending downwards, and the lifting piece can be connected with the frame in a relatively up-down moving mode; a driving piece can be connected to the frame in a relatively rotating mode, and a corresponding spiral transmission mechanism is arranged between the lifting piece and the driving piece.

2. The new stroller of claim 1, wherein: the screw transmission mechanism comprises a screw rod and a nut structure which are arranged in a matched mode, the lifting piece is provided with a screw rod, and the driving piece is provided with a corresponding nut structure; or, be provided with nut structure on the lift piece, be provided with corresponding screw rod on the driving piece.

3. The new stroller of claim 2, wherein: the lifting piece is arranged as a connecting pipe, an annular matching piece is fixedly connected in the connecting pipe, and the annular matching piece is provided with internal threads, so that the annular matching piece is formed into the nut structure; correspondingly, the driving piece comprises a screw rod capable of rotating relative to the frame.

4. The new stroller of claim 3, wherein: the frame is provided with an accommodating space extending up and down, the lower end of the connecting pipe can extend into the accommodating space in a relatively up-and-down moving mode, and at least the upper side of the screw rod extends into the accommodating space and extends into the connecting pipe to be in threaded connection with the annular fitting piece.

5. The new stroller of claim 4, wherein: a first sleeve is fixed on the inner wall of the accommodating space, the first sleeve is located below the connecting pipe, the first sleeve is sleeved outside the screw rod, and the screw rod can rotate relative to the first sleeve.

6. The new stroller of claim 5, wherein: the screw rod is connected with a limiting nut, and the lower end of the limiting nut abuts against the upper end of the first sleeve.

7. The new stroller of claim 4, 5 or 6, wherein: the driving piece further comprises an operating piece which is connected with the lower end of the screw rod and can rotate together with the screw rod, at least part of the operating piece is located outside the lower end of the accommodating space, and the part of the operating piece located outside the lower end of the accommodating space can be relatively rotated to abut against the lower end of the accommodating space.

8. The new stroller of claim 7, wherein: the frame comprises an accommodating pipe extending up and down, and an accommodating space extending up and down is formed in the accommodating pipe.

9. The new stroller of claim 7, wherein: the driving piece comprises a bolt, and the screw part of the bolt is formed into a screw of the screw transmission mechanism; the operating part comprises a head part of the bolt, a control part and an intermediate part, and the head part of the bolt, the control part and the intermediate part are relatively and fixedly connected.

10. The novel stroller of claim 9, wherein: the middle part of the middle part is provided with a through hole which penetrates through the middle part up and down, the upper end of the middle part is also provided with an accommodating hole which is coaxial with the through hole, the lower end of the connecting pipe can be arranged in the accommodating hole in a relatively rotating way, and the lower end of the connecting pipe is abutted against the bottom wall of the accommodating hole; the control piece is fixedly connected to the lower side of the middle piece, a containing hole is formed in the middle of the control piece, the head of the bolt penetrates through the through hole downwards and then is placed in the containing hole, and the degree of freedom of relative rotation between the head of the bolt and the control piece is zero; the lower end part of the middle piece abuts against the upper end of the outer side of the bolt head.

11. The new stroller of claim 10, wherein: the utility model discloses a bolt head, including the through-hole, control piece, middleware lower extreme setting with the coaxial first annular groove of through-hole, the control piece upper end is provided with second annular groove, the part that the middleware is located the first annular groove outside is arranged in the second annular groove and with control piece fixed connection, the part that the control piece is located between accommodation hole and the second annular groove is located first annular groove, the part that the middleware is located between through-hole and the first annular groove support and lean on in the upper end in the bolt head outside.

12. The new stroller of claim 8, wherein: the driving piece comprises a bolt, and the screw part of the bolt is formed into a screw of the screw transmission mechanism; the operating part comprises a head part of the bolt, a control part and an intermediate part, and the head part of the bolt, the control part and the intermediate part are relatively and fixedly connected.

13. The new stroller of claim 12, wherein: the middle part of the middle part is provided with a through hole which penetrates through the middle part up and down, the upper end of the middle part is also provided with an accommodating hole which is coaxial with the through hole, the lower end of the connecting pipe can be arranged in the accommodating hole in a relatively rotating way, and the lower end of the connecting pipe is abutted against the bottom wall of the accommodating hole; the control piece is fixedly connected to the lower side of the middle piece, a containing hole is formed in the middle of the control piece, the head of the bolt penetrates through the through hole downwards and then is placed in the containing hole, and the degree of freedom of relative rotation between the head of the bolt and the control piece is zero; the lower end part of the middle piece abuts against the upper end of the outer side of the bolt head.

14. The new stroller of claim 13, wherein: the utility model discloses a bolt head, including the through-hole, control piece, middleware lower extreme setting with the coaxial first annular groove of through-hole, the control piece upper end is provided with second annular groove, the part that the middleware is located the first annular groove outside is arranged in the second annular groove and with control piece fixed connection, the part that the control piece is located between accommodation hole and the second annular groove is located first annular groove, the part that the middleware is located between through-hole and the first annular groove support and lean on in the upper end in the bolt head outside.

15. A new stroller according to claim 8 or 12 or 13 or 14, characterized in that: the frame comprises a connecting seat, a front foot, a front connecting rod, a rear foot, a rear connecting rod, a containing pipe and a sliding seat, wherein the containing pipe and the sliding seat are connected to the containing pipe in a relatively up-down sliding mode, the rear upper end of the front foot and the front upper end of the rear foot are both pivoted to the connecting seat, the rear upper end of the front connecting rod and the front upper end of the rear connecting rod are both pivoted to the sliding seat, the front lower end of the front connecting rod and the front foot are connected in a relatively rotating mode, the rear lower end of the rear connecting rod and the rear foot are connected in a relatively rotating mode, and the upper end of the containing pipe is connected to the connecting seat.

16. The novel stroller of claim 15, wherein: the frame further comprises a front wheel seat and a rear wheel seat, the front wheel seat is connected with a front wheel, the rear wheel seat is connected with a rear wheel, the front lower end of the front foot and the front lower end of the front connecting rod are respectively pivoted at different positions of the front wheel seat, and the rear lower end of the rear foot and the rear lower end of the rear connecting rod are respectively pivoted at different positions of the rear wheel seat.

17. The novel stroller of claim 15, wherein: the frame further comprises a transverse member extending left and right, and the connecting seat is connected to the middle of the transverse member; or the frame also comprises a left transverse piece and a right transverse piece, and the opposite sides of the left transverse piece and the right transverse piece are connected with the connecting seat; the frame further comprises a left handle and a right handle, the lower ends of the left handle and the right handle are respectively pivoted to the left end and the right end of the transverse member, or the lower ends of the left handle and the right handle are respectively pivoted to one end, far away from the left transverse member and the right transverse member relatively.

18. The novel stroller of claim 16, wherein: the frame further comprises a transverse member extending left and right, and the connecting seat is connected to the middle of the transverse member; or the frame also comprises a left transverse piece and a right transverse piece, and the opposite sides of the left transverse piece and the right transverse piece are connected with the connecting seat; the frame further comprises a left handle and a right handle, the lower ends of the left handle and the right handle are respectively pivoted to the left end and the right end of the transverse member, or the lower ends of the left handle and the right handle are respectively pivoted to one end, far away from the left transverse member and the right transverse member relatively.