CN110758527A

CN110758527A - Folding cart

Info

Publication number: CN110758527A
Application number: CN201910710513.4A
Authority: CN
Inventors: 唐鸣; 李向华; 张霞
Original assignee: Goodbaby Child Products Co Ltd
Current assignee: Goodbaby Child Products Co Ltd
Priority date: 2019-08-02
Filing date: 2019-08-02
Publication date: 2020-02-07

Abstract

The invention discloses a folding cart, wherein a cart frame of the folding cart comprises a front support, a rear support, a push rod frame, a seat frame, a vertical rod and a connecting rod, wherein the upper part of the front support, the upper part of the rear support and the lower part of the push rod frame are mutually and rotatably connected, the rear part of the seat frame is rotatably connected to the front support, one end part of the vertical rod is rotatably connected to the front part of the seat frame, and the other end part of the vertical rod can be relatively and slidably arranged on the front support; one end part of the connecting rod is rotatably connected to the rear bracket, and the other end part of the connecting rod can be arranged on the front bracket in a relatively rotating and relatively sliding manner; the seat frame on the folded cart frame is exposed outside, so that the structural arrangement of the seat frame and the compact of the whole folded cart frame cannot be influenced by grafting the mounting seat pocket, and the folded cart frame is flat and compact in structure.

Description

Folding cart

Technical Field

The invention relates to a folding cart.

Background

In the prior art, the stroller has various structures, and generally includes a stroller frame having an unfolded state and a folded state, a wheel assembly disposed at the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state. At present, some stroller frames are directly provided with seat rods and other rod pieces to form seats, and some stroller frames are provided with seats in a seat bag grafting mode. In any way, when the existing stroller is folded, the rods of the stroller frame cannot be tightly folded due to the seat, so that the stroller frame is overlarge in size and not flat and compact enough after being folded.

Disclosure of Invention

The invention aims to provide a folding cart with a novel structure.

In order to achieve the purpose, the invention adopts the technical scheme that: a folding cart comprises a cart frame with an unfolding state and a folding state, a front wheel assembly arranged at the front part of the cart frame bottom, a rear wheel assembly arranged at the rear part of the cart frame bottom, and a locking mechanism used for locking the cart frame in the unfolding state, wherein the cart frame comprises a front support, a rear support, a push rod frame, a seat frame, a vertical rod and a connecting rod, the upper part of the front support, the upper part of the rear support and the lower part of the push rod frame are connected in a rotating manner, the three are connected on one of the two in a rotating manner, or the three are connected together in a rotating manner around the same rotating central line,

the rear part of the seat frame is rotatably connected to the front bracket, one end part of the upright rod is rotatably connected to the front part of the seat frame, and the other end part of the upright rod can rotate relatively and is arranged on the front bracket in a sliding manner along the length direction of the front bracket; one end part of the connecting rod is rotatably connected to the rear bracket, and the other end part of the connecting rod can be arranged on the front bracket in a manner of relatively rotating and sliding along the length direction of the front bracket; when the cart frame is in a folded state, the front support, the rear support and the push rod frame are mutually folded, the push rod frame is folded at the rear side of the rear support, and the seat frame is folded at the front side of the front support.

Preferably, the stroller frame further comprises a foldable seat pocket grafted on the seat frame, the foldable seat pocket at least comprises a seat board, the seat board is mounted on the seat frame, and when the stroller frame is folded, the foldable seat pocket is folded and is folded with the seat frame.

Further, the foldable seat pocket is detachably connected to the seat frame.

Still further, the foldable seat bag further includes a back plate having a back support surface, a rear portion of the seat plate being rotatably connected to a lower portion of the back plate, the foldable seat bag having a forward mounting state in which the back support surface faces forward and a reverse mounting state in which the back support surface faces rearward on the seat frame.

Preferably, a sliding member is slidably disposed on the front bracket along a length extending direction thereof, and an end of the upright rod and an end of the connecting rod are respectively rotatably connected to the sliding member.

Further, the end of the upright rod and the end of the connecting rod are rotatably connected to the sliding member around the same rotation center line.

Further, when the stroller frame is converted from the unfolded state to the folded state, the sliding member slides downwards along the front support, so that the seat frame, the front support and the rear support are rotated and folded mutually.

Preferably, the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod frame are rotatably connected around the same rotation center line, and the locking mechanism includes a locking joint which is arranged among the upper part of the front bracket, the upper part of the rear bracket and the lower part of the push rod frame and is used for locking the front bracket, the upper part of the rear bracket and the lower part of the push rod frame relatively.

Preferably, the front bracket comprises a front support rod which gradually slantingly extends upwards from front to back, and a pedal fixedly arranged at the lower part of the front support rod, and the front wheel assembly is arranged at the bottom of the pedal.

Further, the rear bracket has two sets of back branches of locating the left and right sides separately, every group the lower part of back branch all is provided with the rear wheel subassembly, every group back branch all inwards extends from bottom to top, the push rod frame includes down push rod and the last push rod that extends and can the relative slip stretch out and draw back along upper and lower direction, the lower part of down push rod the upper portion of front branch and two connect relatively rotatoryly between the upper portion of back branch.

In order to achieve the purpose, the invention adopts another technical scheme that: a folding cart comprises a cart frame with an unfolding state and a folding state, a front wheel component arranged at the front part of the cart frame, a rear wheel component arranged at the rear part of the cart frame, and a locking mechanism used for locking the cart frame in the unfolding state, wherein the cart frame comprises a front support and a rear support which are connected in a mutual rotation manner, a seat frame which is connected on the front support in a rotating manner, a rear part of the seat frame which is connected on the rear support in a rotating manner, a connecting rod which is connected on the front part of the seat frame in a rotating manner, a vertical rod which is connected on the front support in a rotating manner, and a connecting rod which is arranged on the front support in a rotating manner and sliding manner, the rear part of the connecting rod is connected with two groups of rear supports which are respectively arranged at the left side and the right side, the front part of the connecting rod is connected with the same front support, and, when the cart frame is in a folded state, the front support, the rear support and the push rod frame are mutually folded, the push rod frame is folded at the rear side of the rear support, and the seat frame is folded at the front side of the front support.

Preferably, the stroller frame further comprises a foldable seat pocket detachably connected to the seat frame, when the stroller frame is folded, the foldable seat pocket is folded and is folded with the seat frame, and the height of the foldable seat pocket is not more than the highest height of the rest parts of the stroller frame.

Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: according to the folding cart, the cart frame only comprises the front support, the rear support, the push rod frame, the seat frame, the vertical rod and the connecting rod, so that the cart frame can be unfolded and folded.

Drawings

Fig. 1 is a perspective view of the folding stroller of the present invention in an unfolded state, wherein a foldable seat pocket is mounted on a seat frame, wherein the foldable seat pocket is in a forward mounting state;

FIG. 2 is a side view of FIG. 1;

fig. 3 is a side view of the foldable seat pocket of the folding stroller of fig. 2 when converted into a reverse installation state;

FIG. 4 is a schematic view of the folding process of the folding cart of FIG. 2;

FIG. 5 is a side view of the folding cart of the present invention in a folded state;

FIG. 6 is a top view of the folding cart of the present invention in a folded state;

fig. 7 is a side view of the folding stroller of the present invention with the foldable seat pocket removed;

FIG. 8 is a side view of the folding cart of FIG. 7 in a folded state;

wherein: 1. a front bracket; 11. a front support rod; 12. a step plate; 2. a rear bracket; 21. a rear support rod; 22. a rear cross bar; 3. a push rod frame; 31. a lower push rod; 32. a push rod is arranged; 4. erecting a rod; 5. a connecting rod; 6. a seat frame; 7. a slider (sliding sleeve); 8. a foldable seat pocket; 81. a seat plate; 81a, protecting the crotch; 82. a back board; 82a, a backrest support surface; 83. a front armrest; 9. a locking joint; 10. a front wheel assembly; 20. a rear wheel assembly.

Detailed Description

The technical solution of the present invention is further explained with reference to the drawings and the specific embodiments.

Referring to fig. 1 to 8, a folding stroller includes a stroller frame having an unfolded state and a folded state, a front wheel assembly 10 provided at a front portion of a bottom of the stroller frame, a rear wheel assembly 20 provided at a rear portion of the bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the unfolded state.

This shallow frame includes fore-stock 1, after-poppet 2, push rod frame 3, seat frame 6 to and pole setting 4 and connecting rod 5, and wherein, under the shallow frame expansion state, fore-stock 1, after-poppet 2, push rod frame 3 extend along upper and lower direction separately, and the bottom of fore-stock 1 is located to front wheel subassembly 10, and the bottom of after-poppet 2 is located to rear wheel subassembly 20. Of the upper portion of the front supporter 1, the upper portion of the rear supporter 2, and the lower portion of the push rod supporter 3, two of them are rotatably connected and the third one is rotatably connected to one of them, or the three are rotatably connected together around the same rotation center line.

The seat frame 6 extends along the front-back direction, the rear part of the seat frame 6 is rotatably connected with the upper part of the front bracket 1, the upright post 4 is positioned below the seat frame 6, one end part of the upright post 4 is rotatably connected with the front part of the seat frame 6, and the other end part of the upright post 4 is arranged on the front bracket 1 in a manner of relatively rotating and sliding along the length extension direction of the front bracket 1; one end of the link 5 is pivotally connected to the rear bracket 2, and the other end thereof is slidably provided to the front bracket 1 in the longitudinal extension direction of the front bracket 1 while being relatively rotatable.

So, when the pole setting 4 and the tip that connecting rod 5 is connected on fore-stock 1 all followed fore-stock 1 lapse, just can order about seat frame 6, fore-stock 1 and the relative rotation of after-poppet 2 and draw in, push rod frame 3 rolls over to the rear side of after-poppet 2 again, just can realize folding up of shallow frame. On the folded cart frame, the seat frame 6 is positioned at the outer side, and the arrangement of the seat frame 6 can not cause the situation that all the rod pieces on the cart frame can not be tightly folded.

Referring to the drawings, in the embodiment, the front bracket 1 is provided with the sliding member 7 in a sliding manner along the length extension direction thereof, and the end portions of the upright 4 and the connecting rod 5 are respectively and rotatably connected to the sliding member 7, so that the front bracket 1 can be connected with the upright in a relatively rotating manner and can also be connected with the upright in a vertically sliding manner along the length direction of the front bracket 1. The upper part of the front bracket 1, the upper part of the rear bracket 2 and the lower part of the push rod bracket 3 are rotatably connected around the same rotation center line, and the locking mechanism comprises a locking joint 9 which is arranged among the upper part of the front bracket 1, the upper part of the rear bracket 2 and the lower part of the push rod bracket 3 and is used for locking the front bracket 1, the rear bracket 2 and the lower part of the push rod bracket 3 relatively. Therefore, in the state that the locking joint 9 is unlocked, the sliding piece 7 slides downwards along the front support 1, so that the seat frame 6, the front support 1 and the rear support 2 can be rotated and folded, and meanwhile, the push rod frame 3 is turned backwards, and the folding of the frame of the trolley is completed.

Referring to the drawings, the stroller frame further comprises a foldable seat pocket 8 grafted on the seat frame 6, the foldable seat pocket 8 comprises a seat plate 81 and a back plate 82, and the lower part of the back plate 82 is rotatably connected with the rear part of the seat plate 81, so that the foldable seat pocket 8 can be folded through relative rotation.

The seat plate 81 is detachably mounted on the seat frame 6, and it may be mounted on the seat frame 6 in a forward direction or in a reverse direction. Specifically, the backrest plate 82 has a backrest support surface 82a, and when the backrest support surface 82a is directed toward the front of the stroller frame, the foldable seat pocket 8 is in the forward-mounted state; when the seat plate 81 is mounted to the seat frame 6 by 180 ° conversion, the backrest support surface 82a faces the rear of the stroller frame, and the foldable seat pocket 8 is in the reverse mounting state. The user can conveniently switch the forward or reverse installation state of the foldable seat pocket 8 according to the use requirement.

The foldable seat pocket 8 further comprises a front handrail 83, the front handrail 83 is a U-shaped rod with an opening facing backwards, and the rear part of the front handrail is rotatably connected with the lower part of the backrest plate 82 and the rear part of the seat plate 81; the seat plate 81 also has a crotch 81a extending upright upward at the front center thereof for protecting a child sitting on the seat plate 81.

Referring to the drawings, in the present embodiment, the front bracket 1 includes a front support rod 11 extending obliquely upward from front to back, and a foot board 12 fixed to a lower portion of the front support rod 11, and two sets of front wheel assemblies 10 are provided and respectively installed at bottoms of left and right ends of the foot board 12. The sliding piece 7 adopts a sliding sleeve 7 sleeved on the front support rod 11, and the lower end part of the upright rod 4 and the front end part of the connecting rod 5 are rotatably connected on the sliding sleeve 7 around the same rotation center line.

The rear support 2 has two groups of rear support rods 21 respectively arranged at the left and right sides and a rear cross rod 22 fixedly arranged between the lower parts of the rear support rods 21 at the two sides, the lower part of each group of rear support rods 21 is provided with a rear wheel assembly 20, and each rear support rod 21 extends inwards from bottom to top and is connected with the upper part of the front support rod 11. The connecting rods 5 are provided with two groups, the front parts of the two groups of connecting rods 5 are connected to the sliding sleeve 7, and the rear parts of the two groups of connecting rods 5 are respectively and rotatably connected to the rear supporting rods 21 at the two sides. Push rod frame 3 includes a lower push rod 31 and an upper push rod 32 extending in the vertical direction and capable of sliding and extending relatively, and the lower part of lower push rod 31, the upper part of front support rod 11 and the upper parts of two rear support rods 21 are connected together by a same rotating shaft and locked by a locking joint 9.

In summary, in the foldable stroller of the present invention, when the stroller frame is in the unfolded state, referring to fig. 1 to 3 and fig. 7, the front support 1, the rear support 2 and the push rod frame 3 are unfolded relatively, the seat frame 6 is supported on the front support 1, and the foldable seat pocket 8 can be mounted on the seat frame 6 in the forward direction (as shown in fig. 1 and 2) or in the reverse direction (as shown in fig. 3), and the two functions of sitting forward and sitting backward can be switched without reversing the push rod frame 3. When the folding cart needs to be folded, the folding cart can be folded with the seat pocket, as shown in fig. 4, the folding seat pocket 8 is firstly folded to be folded above the seat frame 6, then the locking joint 9 is unlocked, the push rod frame 3 is turned backwards to be folded behind the rear support frame 2, then the folding seat pocket 8 is pressed forwards, and the sliding piece 7 can slide downwards along the front support frame 1 to enable the seat frame 6, the front support frame 1 and the rear support frame 2 to rotate mutually and be folded, so that the folding operation of the cart is completed. On the folded cart frame, as shown in fig. 5 and 6, the seat frame 6 and the foldable seat pocket 8 are located at the outer side, so that interference between the rods in the cart frame is avoided, the close folding of the rods is not affected, the height of the foldable seat pocket 8 is not more than the highest height of the rest parts of the cart frame, in the embodiment, the height of the foldable seat pocket 8 is not more than the height of the highest pedal 12, and the structure is compact and flat.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a folding shallow, includes the shallow frame that has expansion state and fold condition, locates at the bottom of the shallow frame anterior front wheel subassembly, locate the rear wheel subassembly at the bottom of the shallow frame rear portion, and be used for with the locking mechanical system of shallow frame locking under expansion state, its characterized in that: the cart frame comprises a front support, a rear support, a push rod frame, a seat frame, a vertical rod and a connecting rod, wherein the upper part of the front support, the upper part of the rear support and the lower part of the push rod frame are rotationally connected, the third part is rotationally connected with one of the front support, the rear support and the lower part of the push rod frame, or the three parts are rotationally connected together around the same rotation center line,

2. The folding cart of claim 1, wherein: the stroller frame further comprises a foldable seat pocket detachably connected to the seat frame, the foldable seat pocket at least comprises a seat board, the seat board is installed on the seat frame, and when the stroller frame is folded, the foldable seat pocket is folded and is folded with the seat frame.

3. The folding cart of claim 2, wherein: the foldable seat pocket further comprises a backrest plate having a backrest support surface, the rear portion of the seat plate is rotatably connected with the lower portion of the backrest plate, and the foldable seat pocket has a forward installation state in which the backrest support surface faces forward and a reverse installation state in which the backrest support surface faces rearward on the seat frame.

4. The folding cart of claim 1, wherein: the front bracket is provided with a sliding part in a sliding manner along the length extension direction of the front bracket, and the end part of the upright rod and the end part of the connecting rod are respectively and rotatably connected to the sliding part.

5. The folding cart of claim 4, wherein: when the stroller frame is converted from the unfolded state to the folded state, the sliding piece slides downwards along the front support, so that the seat frame, the front support and the rear support are mutually rotated and folded.

6. The folding cart of claim 1, wherein: the upper portion of the front support, the upper portion of the rear support and the lower portion of the push rod frame are connected in a rotating mode around the same rotating center line, and the locking mechanism comprises locking joints which are arranged among the upper portion of the front support, the upper portion of the rear support and the lower portion of the push rod frame and used for locking the front support, the upper portion of the rear support and the lower portion of the push rod frame.

7. The folding cart according to any one of claims 1 to 6, characterized in that: the front support comprises a front support rod and a pedal, wherein the front support rod gradually inclines upwards from front to back, the pedal is fixedly arranged at the lower part of the front support rod, and the front wheel assembly is arranged at the bottom of the pedal.

8. The folding cart of claim 7, wherein: the rear bracket has two sets of back branches of locating the left and right sides separately, every group the lower part of back branch all is provided with the rear wheel subassembly, every group back branch all inwards extends from bottom to top, push rod frame includes down push rod and the last push rod that extends and can the relative slip stretch out and draw back along upper and lower direction, down push rod's lower part the upper portion and two of front branch connect with rotating relatively between the upper portion of back branch.

9. The utility model provides a folding shallow, includes the shallow frame that has expansion state and fold condition, locates at the bottom of the shallow frame anterior front wheel subassembly, locate the rear wheel subassembly at the bottom of the shallow frame rear portion, and be used for with the locking mechanical system of shallow frame locking under expansion state, its characterized in that: the shallow frame includes that fore-stock and after-poppet, the rear portion that the rotation is connected each other rotate seat frame, rear portion that are connected on the fore-stock and rotate and connect connecting rod, rotation on the after-poppet are connected the anterior pole setting of seat frame, the pole setting with the connecting rod can rotate respectively and set up with sliding on the fore-stock, the rear portion of connecting rod is located two sets of the left and right sides with the branch the after-poppet is connected respectively, the front portion of connecting rod with same the fore-stock is connected, the shallow is still located including rotating push rod frame on fore-stock and/or the after-poppet, works as when the shallow frame is in fold condition, fore-stock, after-poppet reaches push rod frame draws in each other, just push rod frame draw in the rear side of after-poppet, seat frame draw in the front side of fore-stock.

10. The folding cart of claim 9, wherein: the stroller frame further comprises a foldable seat pocket detachably connected to the seat frame, when the stroller frame is folded, the foldable seat pocket is folded and furled with the seat frame, and the height of the foldable seat pocket is not more than the highest height of the rest parts of the stroller frame.