CN110758527B - Folding cart - Google Patents
Folding cart Download PDFInfo
- Publication number
- CN110758527B CN110758527B CN201910710513.4A CN201910710513A CN110758527B CN 110758527 B CN110758527 B CN 110758527B CN 201910710513 A CN201910710513 A CN 201910710513A CN 110758527 B CN110758527 B CN 110758527B
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- Prior art keywords
- frame
- cart
- support
- seat
- folding
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- 238000009434 installation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
- B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
- B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
- Handcart (AREA)
Abstract
本发明公开了一种折叠推车，其推车车架包括前支架、后支架、推杆架、座位架，以及立杆与连杆，所述前支架的上部、所述后支架的上部及所述推杆架的下部相互转动地连接，所述座位架的后部转动地连接在所述前支架上，所述立杆的一端部转动地连接在所述座位架的前部，所述立杆的另一端部既能够相对转动又能够相对滑动地设于所述前支架上；所述连杆的一端部转动地连接在所述后支架上，所述连杆的另一端部既能够相对转动又能够相对滑动地设于所述前支架上；折叠后的推车车架上座位架露出在外侧，使得该座位架的结构设置以及再嫁接安装座兜都不会影响推车车架整体收折的紧凑性，折叠后的推车车架结构平整、紧凑。
The present invention discloses a folding stroller, wherein the stroller frame comprises a front bracket, a rear bracket, a push rod frame, a seat frame, a vertical rod and a connecting rod. 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 to each other, the rear part of the seat frame is rotatably connected to the front bracket, 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 is rotatably and slidably arranged on 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 is rotatably and slidably arranged on the front bracket; the seat frame on the stroller frame after folding is exposed to the outside, so that the structural setting of the seat frame and the grafted installation of the seat pocket will not affect the compactness of the overall folding of the stroller frame, and the stroller frame structure after folding is flat and compact.
Description
Technical Field
The invention relates to a folding cart.
Background
In the prior art, child strollers are of various structures, which generally include a stroller frame having an expanded state and a collapsed state, a wheel assembly disposed at a bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the expanded state. At present, some of the child carts are directly provided with rods such as seat rods on a cart frame to form seats, and some of the child carts are provided with seats by grafting seat pockets. In either way, when the existing child stroller is folded, the rods of the stroller frame cannot be tightly folded due to the seat, so that the stroller frame is oversized and is 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 aim, the technical scheme adopted by the invention is that the folding trolley comprises a trolley frame with an unfolding state and a folding state, a front wheel assembly arranged at the front part of the trolley frame bottom, a rear wheel assembly arranged at the rear part of the trolley frame bottom and a locking mechanism for locking the trolley frame in the unfolding state, wherein the trolley 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 rotationally connected, a third party is rotationally connected to one of the front support, the rear support and the push rod frame, or the front support, the upper part of the rear support and the lower part of the push rod frame are rotationally connected together around the same rotation center line,
The rear part of the seat frame is rotationally connected to the front support, one end part of the upright rod is rotationally connected to the front part of the seat frame, the other end part of the upright rod can rotate relatively and can be slidingly arranged on the front support along the length direction of the front support, one end part of the connecting rod is rotationally connected to the rear support, the other end part of the connecting rod can rotate relatively and can be slidingly arranged on the front support along the length direction of the front support, when the trolley 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 on the rear side of the rear support, and the seat frame is folded on the front side of the front support.
Preferably, the cart frame further comprises a foldable seat pocket grafted on the seat frame, the foldable seat pocket at least comprises a seat plate, the seat plate is installed on the seat frame, and when the cart frame is folded, the foldable seat pocket is folded and folded with the seat frame.
Further, the foldable seat pocket is detachably connected to the seat frame.
Still further, the foldable seat pocket further includes a back rest plate having a back rest supporting surface, the rear portion of the seat plate is rotatably connected with the lower portion of the back rest plate, and the foldable seat pocket has a forward mounting state in which the back rest supporting surface is directed forward and a reverse mounting state in which the back rest supporting surface is directed backward on the seat frame.
Preferably, a sliding member is slidably disposed on the front bracket along a length extending direction thereof, and an end portion of the upright and an end portion of the link are respectively rotatably connected to the sliding member.
Further, the end of the upright and the end of the connecting rod are rotatably connected to the slider about the same rotation center line.
Further, when the cart frame is changed from the unfolded state to the folded state, the sliding piece slides downwards along the front bracket, so that the seat frame, the front bracket and the rear bracket are mutually rotated to be folded.
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 comprises 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 three relatively.
Preferably, the front bracket comprises a front supporting rod and a foot pedal, wherein the front supporting rod gradually extends upwards from front to back, the foot pedal is fixedly arranged at the lower part of the front supporting rod, and the front wheel assembly is arranged at the bottom of the foot pedal.
Further, the rear bracket is provided with two groups of rear supporting rods which are respectively arranged at the left side and the right side, the lower parts of the rear supporting rods are respectively provided with a rear wheel assembly, the rear supporting rods of each group are respectively inwards extended from bottom to top, the push rod frame comprises a lower push rod and an upper push rod which extend along the up-down direction and can relatively slide and stretch, and the lower parts of the lower push rod, the upper parts of the front supporting rods and the upper parts of the rear supporting rods are relatively rotationally connected.
In order to achieve the purpose, the 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 for locking the cart frame in the unfolding state, wherein the cart frame comprises a front support and a rear support which are connected with each other in a rotating manner, a seat frame with the rear part connected to the front support in a rotating manner, a connecting rod with the rear part connected to the rear support in a rotating manner, a vertical rod connected to the front part of the seat frame in a rotating manner, the vertical rod and the connecting rod are respectively and slidably arranged on the front support, the rear part of the connecting rod is respectively connected with two groups of rear supports arranged on the left side and the right side, the front part of the connecting rod is connected with the same front support, the cart frame also comprises a push rod frame which is rotationally arranged on the front support and/or the rear support, when the cart frame is in the folding state, the front support, the push rod frame and the push rod frame are mutually folded, and the push rod frame are folded on the front support and the rear support are folded on the front support.
Preferably, the cart frame further comprises a foldable seat pocket detachably connected to the seat frame, when the cart frame is folded, the foldable seat pocket is folded and folded with the seat frame, and the height of the foldable seat pocket does not exceed the highest height of the rest parts of the cart frame.
Due to the application of the technical scheme, the folding cart has the advantages that the cart frame only comprises the front support, the rear support, the push rod frame, the seat frame, the vertical rods and the connecting rods, so that the cart frame is unfolded and folded, the structure of the cart frame is simple, the folding principle is simple, the seat frame on the folded cart frame is exposed out, the structure arrangement of the seat frame and the (of a woman) remarry connecting seat pocket can not influence the integral folding compactness of the cart frame, and the folded cart frame is flat and compact in structure, thereby bringing convenience to daily use of users.
Drawings
FIG. 1 is a perspective view of a folding cart of the present invention in an unfolded state, wherein a seat frame is provided with a foldable seat pocket, wherein the foldable seat pocket is in a forward installation state;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a side view of the collapsible seat pocket of the folding cart of FIG. 2 in a reverse installation position;
FIG. 4 is a schematic illustration of the folding cart of FIG. 2 in a folding process;
FIG. 5 is a side view of the folding cart of the present invention in a folded condition;
FIG. 6 is a top view of the folding cart of the present invention in a folded condition;
FIG. 7 is a side view of the folding cart of the present invention after removal of the collapsible seat pocket;
FIG. 8 is a side view of the folding cart of FIG. 7 in a folded condition;
Wherein, 1, front bracket, 11, front strut, 12, foot rest, 2, rear bracket, 21, rear strut, 22, rear cross bar, 3, push rod frame, 31, lower push rod, 32, upper push rod, 4, upright rod, 5, connecting rod, 6, seat frame, 7, sliding piece (sliding sleeve), 8, foldable seat pocket, 81, seat plate, 81a, crotch protector, 82, backboard, 82a, backrest supporting surface, 83, front handrail, 9, locking joint, 10, front wheel component, 20, rear wheel component.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Referring to fig. 1 to 8, a folding cart includes a cart frame having an unfolded state and a folded state, a front wheel assembly 10 provided at a front portion of a cart frame bottom, a rear wheel assembly 20 provided at a rear portion of the cart frame bottom, and a locking mechanism for locking the cart frame in the unfolded state.
The trolley frame comprises a front support 1, a rear support 2, a push rod frame 3, a seat frame 6, a vertical rod 4 and a connecting rod 5, wherein the front support 1, the rear support 2 and the push rod frame 3 respectively extend in the vertical direction in the unfolded state of the trolley frame, a front wheel assembly 10 is arranged at the bottom of the front support 1, and a rear wheel assembly 20 is arranged at the bottom of the rear support 2. The upper part of the front bracket 1, the upper part of the rear bracket 2 and the lower part of the putter frame 3 are rotatably connected, wherein a third one of them 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 in the front-rear direction, the rear part thereof is rotatably connected to the upper part of the front bracket 1, the upright rod 4 is positioned below the seat frame 6, one end part of the upright rod 4 is rotatably connected to the front part of the seat frame 6, the other end part of the upright rod 4 is provided on the front bracket 1 so as to be capable of rotating relatively and sliding along the length extending direction of the front bracket 1, one end part of the connecting rod 5 is rotatably connected to the rear bracket 2, and the other end part thereof is provided on the front bracket 1 so as to be capable of rotating relatively and sliding along the length extending direction of the front bracket 1.
Therefore, when the end parts of the upright rods 4 and the connecting rods 5 connected to the front support 1 slide downwards along the front support 1, the seat frame 6, the front support 1 and the rear support 2 can be driven to rotate relatively to fold, and the push rod frame 3 is turned to the rear side of the rear support 2, so that the frame of the cart can be folded. 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 condition that all the rods on the cart frame cannot be tightly folded.
Referring to the drawings, in this embodiment, a sliding member 7 is slidably disposed on the front bracket 1 along the length extending direction thereof, and the end of the upright rod 4 and the end of the connecting rod 5 are respectively rotatably connected to the sliding member 7, so that connection with the front bracket 1, which can be relatively rotated and can slide up and down along the length direction of the front bracket 1, is achieved. The upper part of the front bracket 1, the upper part of the rear bracket 2 and the lower part of the push rod frame 3 are rotatably connected around the same rotation center line, and the locking mechanism comprises a locking joint 9 which is arranged between the upper part of the front bracket 1, the upper part of the rear bracket 2 and the lower part of the push rod frame 3 and is used for locking the three relatively. In this way, when the locking joint 9 is unlocked, the sliding piece 7 slides downwards along the front bracket 1, so that the seat frame 6, the front bracket 1 and the rear bracket 2 can be rotated and folded, and meanwhile, the push rod frame 3 is turned backwards, so that the folding of the cart frame is completed.
Referring to the drawings, the cart 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 backrest plate 82, and the lower part of the backrest plate 82 is rotationally connected with the rear part of the seat plate 81, so that the foldable seat pocket 8 can be folded by relative rotation.
The seat plate 81 is detachably mounted on the seat frame 6, and it may be mounted in the forward direction or in the reverse direction on the seat frame 6. Specifically, the back plate 82 has a back support surface 82a, and the foldable seat pocket 8 is in a forward mounted state when the back support surface 82a faces the front of the cart frame, and in a reverse mounted state when the seat plate 81 is mounted to the seat frame 6 while being shifted by 180 °. 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 includes a front armrest 83, the front armrest 83 being a U-shaped bar with an opening toward the rear, and the rear thereof being rotatably coupled to the lower portion of the back plate 82 and the rear portion of the seat plate 81, and a crotch guard 81a vertically extending upward in the middle of the front portion of the seat plate 81 for protecting a child sitting on the seat plate 81.
Referring to the drawings, in this embodiment, the front bracket 1 includes a front strut 11 extending obliquely upward from front to back, and a foot plate 12 fixed to the lower portion of the front strut 11, and the front wheel assembly 10 is provided with two groups, which are respectively mounted at bottoms of left and right ends of the foot plate 12. The sliding piece 7 adopts a sliding sleeve 7 sleeved on the front supporting rod 11, and the lower end part of the vertical rod 4 and the front end part of the connecting rod 5 are rotationally connected on the sliding sleeve 7 around the same rotation center line.
The rear bracket 2 is provided with two groups of rear struts 21 which are respectively arranged at the left side and the right side, and a rear cross rod 22 which is fixedly arranged between the lower parts of the rear struts 21 at the two sides, the lower part of each group of rear struts 21 is provided with a rear wheel assembly 20, and each rear strut 21 extends inwards from bottom to top and is connected with the upper part of the front strut 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. The push rod frame 3 comprises a lower push rod 31 and an upper push rod 32 which extend along the up-down direction and can relatively slide and stretch, and the lower part of the lower push rod 31, the upper parts of the front support rod 11 and the upper parts of the two rear support rods 21 are relatively rotatably connected together through the same rotating shaft and are locked through the locking joint 9.
In summary, when the folding cart of the present invention is in the unfolded state, referring to fig. 1 to 3, and fig. 7, the front frame 1, the rear frame 2 and the push rod frame 3 are unfolded relatively, the seat frame 6 is supported on the front frame 1, 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 mounted on the seat frame 6 in the reverse direction (as shown in fig. 3), and the switching between the sitting function and the anti-sitting function can be achieved without reversing the push rod frame 3. When the folding cart needs to be folded, the foldable seat pocket 8 is folded, as shown in fig. 4, so that the foldable seat pocket 8 is folded to be folded above the seat frame 6, then the locking joint 9 is unlocked, the push rod frame 3 is turned backwards so that the push rod frame is folded behind the rear support 2, and then the foldable seat pocket 8 is pressed forwards, so that 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 rotate to be folded mutually, and the folding operation of the cart is completed. As shown in fig. 5 and 6, the seat frame 6 and the foldable seat pocket 8 are located at the outer side of the folded trolley frame, so that interference to each rod piece in the trolley frame can not be caused to influence the tight folding between the rod pieces, the height of the foldable seat pocket 8 does not exceed the highest height of the rest parts of the trolley frame, and in the embodiment, the height of the foldable seat pocket 8 does not exceed the highest height of the foot rest 12, so that the structure is compact and flat.
The above embodiments are provided to illustrate the technical concept and features of the present invention and are intended to enable those skilled in the art to understand the content of the present invention and implement the same, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the spirit of the present invention should be construed to be included in the scope of the present invention.
Claims (10)
1. The 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 for locking the cart frame in the unfolding state, and is 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 two are rotationally connected and the third is rotationally connected on one of the two, or the three are rotationally connected together around the same rotation center line,
The rear part of the seat frame is rotationally connected to the front support, one end part of the upright rod is rotationally connected to the front part of the seat frame, the other end part of the upright rod can rotate relatively and can be slidingly arranged on the front support along the length direction of the front support, one end part of the connecting rod is rotationally connected to the rear support, the other end part of the connecting rod can rotate relatively and can be slidingly arranged on the front support along the length direction of the front support, when the trolley 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 on the rear side of the rear support, and the seat frame is folded on the front side of the front support.
2. The folding cart of claim 1 wherein said cart frame further comprises a collapsible seat pocket removably attached to said seat frame, said collapsible seat pocket including at least a seat plate mounted to said seat frame, said collapsible seat pocket collapsing and collapsing with said seat frame when said cart frame is collapsed.
3. The folding cart of claim 2 wherein said collapsible seat pocket further comprises a back rest having a back rest support surface, said back rest support surface being rotatably connected between a rear portion of said seat pan and a lower portion of said back rest support surface, said collapsible seat pocket having a forward mounted condition with said back rest support surface facing forward and a reverse mounted condition with said back rest support surface facing rearward on said seat frame.
4. The folding cart of claim 1 wherein said front frame is slidably provided with a slider along a length thereof, and wherein an end of said upright and an end of said link are rotatably coupled to said slider, respectively.
5. The folding cart of claim 4 wherein said slider slides downwardly along said front frame to pivotally retract said seat frame, front frame and rear frame relative to one another when said cart frame is transitioned from an extended position to a folded position.
6. The folding cart of claim 1 wherein said upper portion of said front frame, said upper portion of said rear frame and said lower portion of said pusher frame are rotatably coupled about a common center line of rotation, said locking mechanism comprising a locking joint disposed between said upper portion of said front frame, said upper portion of said rear frame and said lower portion of said pusher frame for locking the three relative to one another.
7. The folding cart of any one of claims 1 to 6 wherein said front frame comprises a front strut extending gradually upward from front to back, a foot pedal fixedly disposed under said front strut, said front wheel assembly disposed at the bottom of said foot pedal.
8. The folding cart of claim 7, wherein said rear frame has two sets of rear struts disposed on both sides, each set of rear struts having said rear wheel assembly disposed at a lower portion thereof, each set of rear struts extending inwardly from bottom to top, said pusher frame including a lower pusher and an upper pusher extending in a vertical direction and being capable of sliding and telescoping with respect to each other, a lower portion of said lower pusher, an upper portion of said front strut, and upper portions of both said rear struts being rotatably connected with respect to each other.
9. The utility model provides a folding shallow, includes has the shallow frame of expansion state and folding state, locates the front wheel subassembly at shallow frame bottom front portion, locates the rear wheel subassembly at shallow frame bottom rear portion, and be used for with the locking mechanical system of shallow frame lock under the expansion state, its characterized in that: the cart frame comprises a front support and a rear support which are connected with each other in a rotating way, a seat frame, a rear portion of which is connected with the front support in a rotating way, a connecting rod, a vertical rod, and two groups of rear supports, wherein the rear support and the rear support are connected with each other in a rotating way, the rear portion of the connecting rod is connected with the same front support, the pushing rod frame is arranged on the front support and/or the rear support in a rotating way, the front support, the rear support and the pushing rod frame are mutually folded when the cart frame is in a folded state, the pushing 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.
10. The folding cart of claim 9 wherein said cart frame further comprises a collapsible seat pocket removably attached to said seat frame, said collapsible seat pocket collapsing and collapsing with said seat frame when said cart frame is collapsed, and wherein a height of said collapsible seat pocket does not exceed a highest height of remaining components of said cart frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710513.4A CN110758527B (en) | 2019-08-02 | 2019-08-02 | Folding cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910710513.4A CN110758527B (en) | 2019-08-02 | 2019-08-02 | Folding cart |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110758527A CN110758527A (en) | 2020-02-07 |
| CN110758527B true CN110758527B (en) | 2024-11-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910710513.4A Active CN110758527B (en) | 2019-08-02 | 2019-08-02 | Folding cart |
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| CN (1) | CN110758527B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376963B (en) * | 2020-03-31 | 2024-11-29 | 好孩子儿童用品有限公司 | Folding baby carriage |
| CN113442990B (en) * | 2021-08-06 | 2024-11-05 | 山东传奇贝贝儿童用品有限公司 | Folding frame and baby carriage |
| CN114604307B (en) * | 2022-02-14 | 2024-09-24 | 好孩子儿童用品有限公司 | Child cart |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211167031U (en) * | 2019-08-02 | 2020-08-04 | 好孩子儿童用品有限公司 | Folding cart |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1792694A (en) * | 2005-12-22 | 2006-06-28 | 好孩子儿童用品有限公司 | Children carriage |
| CN200954826Y (en) * | 2006-09-29 | 2007-10-03 | 李伟琼 | Folding baby's stroller |
| CN204978799U (en) * | 2015-08-11 | 2016-01-20 | 左江文 | Baby's handcart of collapsible formation pull rod car |
| CN205554274U (en) * | 2016-03-11 | 2016-09-07 | 好孩子儿童用品有限公司 | Child stroller |
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2019
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211167031U (en) * | 2019-08-02 | 2020-08-04 | 好孩子儿童用品有限公司 | Folding cart |
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| CN110758527A (en) | 2020-02-07 |
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