CN211494194U

CN211494194U - Foldable cart frame

Info

Publication number: CN211494194U
Application number: CN201922159028.0U
Authority: CN
Inventors: 蔡守进
Original assignee: Jiangsu Little Dinosaur Children Products Group Co ltd
Current assignee: Jiangsu Little Dinosaur Children Products Group Co ltd
Priority date: 2019-12-05
Filing date: 2019-12-05
Publication date: 2020-09-15
Anticipated expiration: 2029-12-05

Abstract

The utility model belongs to the baby's shallow field discloses a collapsible shallow frame, including rear wheel support, one end all with front wheel support and the side bar subassembly that the rear wheel support rotates the connection, with the push rod subassembly that the other end of side bar subassembly rotated the connection, with push rod subassembly rotates the back vaulting pole subassembly of connecting, with the seat pole that the rear wheel support rotates the connection, with the seat pole and the back vaulting pole subassembly all rotates the seat pole connecting rod of connecting, one end rotate connect in rear wheel support and other end rotate connect in the cross vaulting pole subassembly of back vaulting pole subassembly, rotate connect in front wheel support and folding foot bar subassembly, one end rotate connect in cross vaulting pole subassembly and other end sliding connection the foot bar connecting rod of foot bar subassembly, cross vaulting pole subassembly can drive the foot bar connecting rod is folding. The utility model discloses an above-mentioned foldable shallow frame, its folding mode is simple swift, and folding back is small, portable.

Description

Foldable cart frame

Technical Field

The utility model relates to a baby's shallow field especially relates to a collapsible shallow frame.

Background

In the design of the frame structure of the infant stroller, in order to meet the carrying convenience of consumers, the frame of the stroller is generally designed to be foldable, so that the infant stroller can be unfolded to be in a riding state when in use, and can be folded to be smaller in volume to be convenient to store or carry when not in use.

The folding mode of current infant's shallow is loaded down with trivial details, and the linkage mode is not consecutive, and is folding convenient and fast inadequately, and folding back volume is great moreover, is difficult to place in narrow space, is not convenient for deposit and carry.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a foldable shallow frame, folding mode is simple swift, and folding back is small.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a collapsible shallow frame, including rear wheel support, one end all with front wheel support and the side bar subassembly that the rear wheel support rotates to be connected, with the push rod subassembly that the other end of side bar subassembly rotates to be connected, with the back vaulting pole subassembly that the push rod subassembly rotates to be connected, with the seat pole that the rear wheel support rotates to be connected, with the seat pole and the seat pole connecting rod that the back vaulting pole subassembly all rotates to be connected, one end rotate connect in rear wheel support and other end rotate connect in the cross vaulting pole subassembly of back vaulting pole subassembly, rotate connect in front wheel support and folding foot bar subassembly, one end rotate connect in cross vaulting pole subassembly and other end sliding connection the foot bar connecting rod of foot bar subassembly, cross vaulting pole subassembly can drive the foot bar connecting rod is folding.

Preferably, the rear wheel support includes a left rear wheel support and a right rear wheel support which are symmetrically arranged, the rear brace assembly includes a left rear brace and a right rear brace which are symmetrically arranged, the cross brace assembly includes an upper cross brace and a lower cross brace which are crossed and rotatably connected, two ends of the upper cross brace are rotatably connected to the left rear wheel support and the right rear brace, the lower cross brace is located below the upper cross brace, and two ends of the lower cross brace are rotatably connected to the right rear wheel support and the left rear brace.

Preferably, a first connecting seat is fixedly arranged at one end of the pedal rod connecting rod, and the first connecting seat, the upper cross brace rod and the lower cross brace rod are coaxially connected through a pin.

Preferably, the front wheel support includes left front wheel support and right front wheel support that the symmetry set up, the foot bar subassembly includes left foot bar, right foot bar and second connecting seat, left side foot bar right foot bar with the coaxial pin joint of second connecting seat is connected, the other end of foot bar connecting rod slides and wears to locate in the second connecting seat, left side foot bar rotate connect in left front wheel support, right foot bar rotate connect in right front wheel support.

Preferably, the support device further comprises a parent-child support rod assembly, wherein the parent-child support rod assembly comprises an upper parent-child support rod and a lower parent-child support rod which are crossed and rotatably connected, one end of the upper parent-child support rod is rotatably connected with a right short parent-child support rod, the other end of the upper parent-child support rod is rotatably connected to the end part of the left rear support rod, and the right short parent-child support rod is rotatably connected to the right rear support rod; the one end of father-son vaulting pole rotates to be connected with short father-son vaulting pole in a left side and the other end rotate connect in the tip of vaulting pole behind the right side, short father-son vaulting pole in a left side rotate connect in on the vaulting pole behind the left side.

Preferably, the rear wheel support device further comprises a front wheel support connecting rod, and two ends of the front wheel support connecting rod are respectively and rotatably connected to the front wheel support and the rear support rod assembly.

Preferably, the push rod assembly comprises a left push rod and a right push rod, one end of the left push rod is rotatably connected with a left push handle, one end of the right push rod is rotatably connected with a right push handle, and the left push handle is rotatably connected with the right push handle.

Preferably, the rear support rod assembly further comprises a locking mechanism, and the locking mechanism comprises a locking piece arranged between the rear support rod assembly and the push rod assembly and an unlocking piece arranged between the left push handle and the right push handle.

Preferably, the seat back device further comprises a backrest rod assembly, and the backrest rod assembly is rotatably arranged at one end of the seat rod connecting rod.

Preferably, the front wheel bracket is rotatably connected with a front wheel assembly, and the rear wheel bracket is rotatably connected with a rear wheel assembly.

The utility model has the advantages that: through setting up seat pole, seat pole connecting rod and cross vaulting pole subassembly, connect cross vaulting pole subassembly and foot pole subassembly through the foot pole connecting rod simultaneously for the linkage mode of whole collapsible shallow frame links up more, and makes the folding mode of collapsible shallow frame simpler, and it is convenient and fast more to fold, and after folding small, portable.

Drawings

Fig. 1 is a schematic perspective view of a foldable stroller frame according to the present invention;

fig. 2 is a schematic perspective view of another view angle of the foldable stroller frame provided in the present invention;

fig. 3 is a side view of the foldable stroller frame provided by the present invention;

fig. 4 is a schematic view of the foldable stroller frame showing the cross brace assembly and the parent-child brace assembly provided by the present invention;

fig. 5 is another schematic view of the foldable stroller frame showing the cross brace assembly and the parent-child brace assembly provided in the present invention;

FIG. 6 is a schematic view of a stop block of the foldable stroller frame of the present invention showing a foot bar linkage;

fig. 7 is a schematic view of the frame of the foldable stroller provided in the present invention in a preliminary folded state;

fig. 8 is a schematic view of the foldable stroller frame in an intermediate folded state

Fig. 9 is a schematic view of the foldable stroller frame in a folded state.

In the figure:

11. a left rear wheel support; 12. a right rear wheel bracket; 13. a rear wheel assembly; 21. a left front wheel bracket; 22. a right front wheel bracket; 23. a front wheel assembly; 31. a left grab rail; 32. a right side grab rail; 41. a left push rod; 42. a right push rod; 51. a left rear stay; 52. a right rear stay; 61. an upper cross brace rod; 62. a lower cross brace rod; 71. a left foot bar; 72. a right foot bar; 73. a second connecting seat; 74. a fourth connecting seat; 81. an upper parent-child support rod; 82. a lower parent-child support rod; 83. a right short parent-child strut; 84. a left short parent-child support rod; 91. a left push handle; 92. a right push handle; 101. a seat post; 102. a seat post link; 20. a third connecting seat; 30. a foot bar connecting rod; 301. a first connecting seat; 302. a limiting block; 40. a front wheel support link; 50. a back rest bar assembly; 60. a front canopy rod assembly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a collapsible shallow frame, as shown in fig. 1-5, this collapsible shallow frame includes rear wheel support, front wheel support, side handrail pole subassembly, push rod subassembly, back vaulting pole subassembly, seat pole 101, seat pole connecting rod 102, cross vaulting pole subassembly, foot bar subassembly, father and son vaulting pole subassembly, back pole subassembly 50, preceding fluffy pole subassembly 60 and locking mechanical system, wherein: the rear wheel bracket comprises a left rear wheel bracket 11 and a right rear wheel bracket 12 which are symmetrically arranged, and rear wheel assemblies 13 are rotatably arranged on the left rear wheel bracket 11 and the right rear wheel bracket 12; the front wheel bracket comprises a left front wheel bracket 21 and a right front wheel bracket 22 which are symmetrically arranged, and front wheel assemblies 23 are rotatably arranged on the left front wheel bracket 21 and the right front wheel bracket 22; the side grab rail assembly comprises a left grab rail 31 and a right grab rail 32 which are symmetrically arranged; the push rod assembly comprises a left push rod 41 and a right push rod 42 which are symmetrically arranged; the rear stay bar assembly comprises a left rear stay bar 51 and a right rear stay bar 52 which are symmetrically arranged; the cross brace rod assembly comprises an upper cross brace rod 61 and a lower cross brace rod 62 which are crossed and rotatably connected; the pedal lever component comprises a left pedal lever 71 and a right pedal lever 72 which are symmetrically arranged, and a second connecting seat 73 which is coaxially connected with the left pedal lever 71 and the right pedal lever 72 in a pin joint way; the parent-child support rod assembly comprises an upper parent-child support rod 81 and a lower parent-child support rod 82 which are crossed and rotatably connected, a right short parent-child support rod 83 with one end rotatably connected with the upper parent-child support rod 81, and a left short parent-child support rod 84 with one end rotatably connected with the lower parent-child support rod 82.

In this embodiment, as shown in fig. 1-3, the left front wheel bracket 21 is rotatably connected to the left rear wheel bracket 11, the left grab bar 31 is further rotatably connected to the left push rod 41, and the left push rod 41 is rotatably connected to the left rear stay 51. Correspondingly, the right front wheel bracket 22 is rotatably connected to the right rear wheel bracket 12, the right grab bar 32 is rotatably connected to the right rear wheel bracket 12, the right push rod 42 is also rotatably connected to the right grab bar 32, and the right push rod 42 is rotatably connected to the right rear stay 52.

The left push handle 91 is pivotally connected to one end of the left push rod 41, the right push handle 92 is pivotally connected to one end of the right push rod 42, and the left push handle 91 and the right push handle 92 are pivotally connected to each other. The locking mechanism includes a locking member disposed between the rear stay assembly and the push rod assembly, and an unlocking member disposed between the left push handle 91 and the right push handle 92. The unlocking element is slidably disposed at the connection position of the left push handle 91 and the right push handle 92, and the locking element may be disposed between the left push rod 41 and the left rear stay 51, between the right push rod 42 and the right rear stay 52, or between the left push rod 41 and the left rear stay 51, or between the right push rod 42 and the right rear stay 52. The entire foldable stroller can be locked by the locking member after the foldable stroller frame is unfolded. The unlocking piece can realize the unlocking between the left push handle 91 and the right push handle 92 and the whole vehicle so as to facilitate the subsequent folding. The structure of the unlocking piece and the locking piece is common in the prior art and is not described in detail.

In this embodiment, two

seat links

101 and 102 are symmetrically disposed, the seat link 101 is rotatably connected to the seat link 102, the seat link 101 is rotatably connected to the rear wheel frame, and the seat link 102 is also rotatably connected to the rear stay assembly (i.e., the left seat link 101 is rotatably connected to the left rear wheel frame 11, the left seat link 102 is rotatably connected to the left rear stay 51, the right seat link 101 is rotatably connected to the right rear wheel frame 12, and the right seat link 102 is rotatably connected to the right rear stay 52). Through the setting of this seat pole 101 and seat pole connecting rod 102, can realize being connected of rear wheel support and back vaulting pole subassembly, also realize folding in-process simultaneously, the effect of back vaulting pole subassembly, seat pole 101 and the linkage of seat pole connecting rod 102.

Referring to fig. 4 and 5, the upper cross brace 61 is located above the lower cross brace 62, and the middle positions of the upper cross brace 61 and the lower cross brace 62 are crossed and are rotatably pinned. The two ends of the upper cross brace 61 are respectively and rotatably connected with the left rear wheel bracket 11 and the right rear brace 52, and the two ends of the lower cross brace 62 are respectively and rotatably connected with the right rear wheel bracket 12 and the left rear brace 51. Through the setting of this cross vaulting pole subassembly, it can be connected rear wheel support and back vaulting pole subassembly, and the last cross vaulting pole 61 and the lower cross vaulting pole 62 of crossing setting simultaneously, it can further make folding more smoothly swift and fast. In this embodiment, further, a third connecting seat 20 may be installed on the left rear wheel bracket 11, the right rear wheel bracket 12, the left rear stay 51 and the right rear stay 52, two ends of the upper cross stay 61 are respectively rotatably connected to the left rear wheel bracket 11 and the right rear stay 52 through the third connecting seat 20, and two ends of the lower cross stay 62 are respectively rotatably connected to the right rear wheel bracket 12 and the left rear stay 51 through the third connecting seat 20.

The pedal rod link 30 is rotatably connected to the position where the upper cross brace 61 and the lower cross brace 62 intersect with each other, and specifically, as shown in fig. 5, a first connecting seat 301 is provided at one end of the pedal rod link 30, and the first connecting seat 301 is coaxially pinned with the upper cross brace 61 and the lower cross brace 62. The other end of the pedal rod link 30 slides through the second connecting seat 73 of the pedal rod assembly.

Further, in this embodiment, as shown in fig. 6, the end portions and the non-end portions of the pedal rod connecting rod 30 are provided with limiting blocks 302, and the two limiting blocks 302 are respectively located at two ends of the second connecting seat 73 to limit the pedal rod connecting rod 30. The end position of the stopper 302 can prevent the pedal rod connecting rod 30 from separating from the second connecting seat 73, and the non-end position of the stopper 302 can abut against the second connecting seat 73 and drive the left pedal rod 71 and the right pedal rod 72 to rotate, so as to fold the left pedal rod 71 and the right pedal rod 72. In this embodiment, the limiting block 302 may be a protrusion or a screw cap, as long as the limitation of the pedal rod connecting rod 30 can be achieved.

In this embodiment, the left pedal lever 71 and the right pedal lever 72 are preferably rotatably connected to the left front wheel bracket 21 and the right front wheel bracket 22 through a fourth connecting seat 74.

In this embodiment, as shown in fig. 5, one end of the upper parent-child brace 81, which is not connected to the right short parent-child brace 83, is rotatably connected to the end of the left rear brace 51, and the right short parent-child brace 83 is rotatably connected to the right rear brace 52; the end of the lower parent-child stay 82, which is not connected with the left short parent-child stay 84, is rotatably connected to the end of the right rear stay 52, and the left short parent-child stay 84 is rotatably connected to the left rear stay 51. By arranging the upper parent-child support rod 81, the right short parent-child support rod 83, the lower parent-child support rod 82 and the left short parent-child support rod 84, the left rear support rod 51 and the right rear support rod 52 can be further connected, and the structure of the whole foldable stroller frame is more stable.

Optionally, a front wheel carrier link 40 is further connected between the front wheel carrier and the rear stay assembly, specifically, the left front wheel carrier 21 and the left rear stay 51 are respectively and rotatably connected to two ends of one front wheel carrier link 40, and similarly, the right front wheel carrier 22 and the right rear stay 52 are respectively and rotatably connected to two ends of the other front wheel carrier link 40

In this embodiment, the two ends of the backrest rod assembly 50 are pivotally connected to one end of two seat rod links 102, respectively.

The front canopy bar assembly 60 has a U-shaped structure, and has a left end coaxially connected to the left grab bar 31 and the left push rod 41, and a right end coaxially connected to the right grab bar 32 and the right push rod 42.

When the foldable stroller frame of the embodiment is folded, the unlocking member is first pressed to unlock the left push handle 91 and the right push handle 92, and then the left push handle 91 and the right push handle 92 are pressed downward and simultaneously forward, at which time the locking member unlocks the left push rod 41 and the left rear stay 51 and the right push rod 42 and the right rear stay 52, and then the left push handle 91 and the right push handle 92 are continuously pressed downward to form the initial folded state shown in fig. 7.

Then, the left push handle 91 and the right push handle 92 are pressed downwards, and at this time, the left push handle 91 and the right push handle 92 drive the push rod assembly, the side arm rest assembly and the rear support rod assembly to rotate downwards, so as to form an intermediate folded state shown in fig. 8.

And then, continuously folding the whole vehicle, wherein the rear support rod assembly is finally attached to the rear wheel bracket, and finally the whole vehicle is folded to form a folded state shown in fig. 9.

This embodiment is through above-mentioned structure, can make the linkage mode of whole collapsible shallow frame link up more, and make the folding mode of collapsible shallow frame simpler, fold convenient and fast more to after folding small, be convenient for deposit and carry.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A foldable cart frame is characterized by comprising a rear wheel bracket, a front wheel bracket and a side handrail rod component, wherein one end of the front wheel bracket is rotationally connected with the rear wheel bracket, a push rod component rotationally connected with the other end of the side handrail rod component, a rear support rod component rotationally connected with the push rod component, the bicycle pedal comprises a seat rod (101) rotatably connected with the rear wheel support, a seat rod connecting rod (102) rotatably connected with the seat rod (101) and the rear supporting rod assembly, a cross supporting rod assembly with one end rotatably connected with the rear wheel support and the other end rotatably connected with the rear supporting rod assembly, a pedal rod connecting rod (30) rotatably connected with the front wheel support and foldable pedal rod assembly and with one end rotatably connected with the cross supporting rod assembly and the other end slidably connected with the pedal rod assembly, and the cross supporting rod assembly can drive the pedal rod connecting rod (30) to be folded.

2. The foldable stroller frame according to claim 1, wherein the rear wheel support comprises a left rear wheel support (11) and a right rear wheel support (12) which are symmetrically arranged, the rear brace assembly comprises a left rear brace (51) and a right rear brace (52) which are symmetrically arranged, the cross brace assembly comprises an upper cross brace (61) and a lower cross brace (62) which are crossed and rotatably connected, two ends of the upper cross brace (61) are rotatably connected to the left rear wheel support (11) and the right rear brace (52), and the lower cross brace (62) is located below the upper cross brace (61) and two ends of the lower cross brace (62) are rotatably connected to the right rear wheel support (12) and the left rear brace (51).

3. The foldable stroller frame according to claim 2, wherein a first connecting seat (301) is fixedly arranged at one end of the pedal rod connecting rod (30), and the first connecting seat (301), the upper cross brace (61) and the lower cross brace (62) are coaxially pinned.

4. The foldable stroller frame according to any one of claims 1 to 3, wherein the front wheel bracket comprises a left front wheel bracket (21) and a right front wheel bracket (22) which are symmetrically arranged, the pedal lever assembly comprises a left pedal lever (71), a right pedal lever (72) and a second connecting seat (73), the left pedal lever (71), the right pedal lever (72) and the second connecting seat (73) are coaxially pinned, the other end of the pedal lever connecting rod (30) is slidably inserted into the second connecting seat (73), the left pedal lever (71) is rotatably connected to the left front wheel bracket (21), and the right pedal lever (72) is rotatably connected to the right front wheel bracket (22).

5. The foldable stroller frame according to claim 2, further comprising a parent-child stay assembly, wherein the parent-child stay assembly comprises an upper parent-child stay (81) and a lower parent-child stay (82) which are crossed and rotatably connected, one end of the upper parent-child stay (81) is rotatably connected with a right short parent-child stay (83) and the other end is rotatably connected with the end of the left rear stay (51), and the right short parent-child stay (83) is rotatably connected with the right rear stay (52); the one end of father-son vaulting pole (82) down rotates and is connected with short father-son vaulting pole (84) in a left side and the other end rotate connect in the tip of vaulting pole (52) behind the right side, short father-son vaulting pole (84) in a left side rotate connect in behind the left side on vaulting pole (51).

6. The foldable stroller frame according to claim 1, further comprising a front wheel carrier link (40), wherein both ends of said front wheel carrier link (40) are rotatably connected to said front wheel carrier and said rear stay assembly, respectively.

7. The foldable stroller frame according to claim 1, wherein the push rod assembly comprises a left push rod (41) and a right push rod (42), one end of the left push rod (41) is rotatably connected with a left push handle (91), one end of the right push rod (42) is rotatably connected with a right push handle (92), and the left push handle (91) and the right push handle (92) are rotatably connected with each other.

8. The foldable stroller frame according to claim 7, further comprising a locking mechanism comprising a locking member disposed between the rear stay assembly and the push rod assembly, and an unlocking member disposed between the left push handle (91) and the right push handle (92).

9. The foldable stroller frame according to claim 1, further comprising a backrest rod assembly (50), wherein the backrest rod assembly (50) is rotatably disposed at one end of the seat rod link (102).

10. The foldable stroller frame according to claim 1, characterized in that said front wheel support is rotatably connected with a front wheel assembly (13) and said rear wheel support is rotatably connected with a rear wheel assembly (23).