CN112407013B - Child cart - Google Patents

Child cart Download PDF

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Publication number
CN112407013B
CN112407013B CN202011189573.5A CN202011189573A CN112407013B CN 112407013 B CN112407013 B CN 112407013B CN 202011189573 A CN202011189573 A CN 202011189573A CN 112407013 B CN112407013 B CN 112407013B
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CN
China
Prior art keywords
rod
rotationally connected
stroller
parts
handrail
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202011189573.5A
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Chinese (zh)
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CN112407013A (en
Inventor
尤志刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goodbaby Child Products Co Ltd
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Goodbaby Child Products Co Ltd
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Priority to CN202011189573.5A priority Critical patent/CN112407013B/en
Publication of CN112407013A publication Critical patent/CN112407013A/en
Application granted granted Critical
Publication of CN112407013B publication Critical patent/CN112407013B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62BHAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00Accessories or details specially adapted for children's carriages or perambulators

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

The invention discloses a child stroller, which comprises a stroller frame with an unfolding state and a folding state, wherein the stroller is small in folding volume, can stand on the ground after being folded, and is convenient to carry and store. In the unfolded state, the side brackets on each side comprise: a front strut; the rear support rod comprises a rear upper support rod and a rear lower support rod which are connected in a sliding and telescopic manner along the up-down direction; a push rod; a side armrest extending in the front-rear direction, the rear portion being rotatably connected to the push rod; the connecting rod extends along the front-back direction, and the front part is rotationally connected to the front support rod; the rear stay bar extends along the up-down direction, and the lower part of the rear stay bar is rotationally connected to the rear lower support bar; one end of the linkage rod is rotationally connected to the lower part of the rear upper supporting rod, and the other end of the linkage rod is rotationally connected to the rear supporting rod; the front support rod, the rear upper support rod and the side armrests are connected together around a first rotation center line, the push rod, the connecting rod and the rear support rod are connected together around a second rotation center line, and the first rotation center line and the second rotation center line are parallel to each other.

Description

Child cart
Technical Field
The invention relates to a child stroller.
Background
In the prior art, the foldable baby stroller has different structures and different folding principles, and most of the foldable baby strollers have the problems of large folding volume and inconvenience in carrying and storage.
Disclosure of Invention
The invention aims to provide a child cart which is small in folding size and convenient to carry and store.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The utility model provides a children's shallow, includes that have the shallow frame of expansion state and folding state, locate front wheel subassembly and rear wheel subassembly of shallow frame bottom, and be used for with the locking mechanical system of shallow frame lock under the expansion state, the shallow frame is including locating the two sets of side support of left and right sides respectively, under the expansion state, every side the side support all includes:
the front wheel assembly is arranged at the bottom of the front support rod;
the rear support rod comprises a rear upper support rod and a rear lower support rod which are in relative sliding telescopic connection along the up-down direction, and the rear wheel assembly is arranged at the bottom of the rear lower support rod;
A push rod;
a side rail extending in a front-rear direction, a rear portion of the side rail being rotatably connected to the push rod;
The connecting rod extends along the front-back direction, and the front part of the connecting rod is rotationally connected to the front supporting rod;
the rear stay bar extends along the up-down direction, and the lower part of the rear stay bar is rotationally connected to the rear lower support bar;
a linkage rod, one end of which is rotatably connected to the lower part of the rear upper strut, the other end part of the linkage rod is rotationally connected to the rear stay rod;
The upper part of the front supporting rod, the upper part of the rear upper supporting rod and the front part of the side handrail are connected in a rotating way around a first rotating central line, the lower part of the push rod, the rear part of the connecting rod and the upper part of the rear supporting rod are connected in a rotating way around a second rotating central line, and the first rotating central line and the second rotating central line are parallel.
Preferably, the front part of the connecting rod is rotationally connected with the front support rod through a first shaft, the rear part of the side handrail is rotationally connected with the push rod through a second shaft, the trolley frame is in a unfolded state, the axis of the first shaft is positioned below the first rotation center line, and the axis of the second shaft is positioned above the second rotation center line.
Preferably, in the unfolded state of the cart frame, the first rotation center line is higher than the second rotation center line in the vertical direction.
Preferably, the side bracket of each side further includes a seat bar extending in a front-rear direction, a front portion of the seat bar is rotatably coupled to an upper portion of the front strut or an upper portion of the rear upper strut or a front portion of the side rail, and a rear portion of the seat bar is coupled to the connection bar so as to be relatively rotatable as well as relatively slidable in a length direction of the connection bar.
Preferably, the front part of the seat rod is rotationally connected with the upper part of the front support rod, the upper part of the rear upper support rod and the front part of the side handrail around the first rotation center line, the rear part of the seat rod is rotationally connected with a first sliding piece, and the first sliding piece is relatively slidingly arranged on the connecting rod along the length direction of the connecting rod.
Preferably, along the left-right direction of the cart frame, the side armrests, the front support rods, the seat rods and the rear upper support rods are sequentially arranged from outside to inside and are rotationally connected together through the same rotating shaft.
Preferably, the cart frame further comprises a front handrail arranged between the side brackets on two sides, the front handrail comprises two groups of handrail rod parts which are respectively arranged on the left side and the right side and are connected with the side brackets on the corresponding sides, the handrail rod parts extend along the front-back direction, the rear end parts of the handrail rod parts are rotationally connected to the connecting rods, a second sliding part is rotationally arranged on the side handrail, and the second sliding part can be arranged on the handrail rod parts in a relatively sliding manner along the length extending direction of the handrail rod parts.
Preferably, the lower part of the rear upper supporting rod is slidably inserted into the rod cavity of the rear lower supporting rod, a guide groove extending along the up-down direction is formed in the rear lower supporting rod, a connecting pin is slidably arranged in the guide groove in a penetrating manner, and one end part of the linkage rod is rotatably connected with the lower part of the rear upper supporting rod through the connecting pin.
Preferably, the cart frame further comprises a pushing handle arranged between the upper parts of the pushing rods at two sides, the pushing handle is provided with pushing handle rods which are respectively arranged at the left side and the right side, and the lower parts of the pushing handle rods are rotatably connected with the upper parts of the pushing rods at the same side.
Preferably, when the cart frame is in a folded state, the front support rod, the side handrail, the push rod and the connecting rod in the side support at each side are mutually folded, the front wheel assembly and the rear wheel assembly are mutually folded, and the two groups of rear wheel assemblies are positioned between the two groups of front wheel assemblies along the left-right direction.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the child cart disclosed by the invention is simple in structure, small in folding volume, and convenient to carry and store, and the folded cart frame can stand on the ground.
Drawings
FIG. 1 is a schematic perspective view of a stroller in an embodiment of the present invention with a frame in an extended position;
FIG. 2 is an exploded view of the stroller frame of the present embodiment;
FIG. 3 is a side view of the stroller frame of the present embodiment in a deployed state;
FIG. 4 is a front view of the stroller frame of the present embodiment in an expanded state;
FIG. 5 is a perspective view of the stroller frame according to the present embodiment during folding;
FIG. 6 is a side view of the stroller frame of the present embodiment during folding;
fig. 7 is a schematic perspective view of the stroller frame according to the present embodiment in a folded state;
FIG. 8 is a side view of the stroller frame of the present embodiment in a collapsed configuration;
FIG. 9 is a front view of the stroller frame of the present embodiment in a collapsed configuration;
Wherein: 1. a cart frame; 11. a side bracket; 111. a front strut; 112. a rear strut; 1121. a rear upper strut; 1122. a rear lower strut; 1123. a rod cavity; 1124. a guide groove; 113. a push rod; 114. a side rail; 115. a connecting rod; 116. a rear stay; 117. a linkage rod; 118. a seat rod; 121. a front armrest; 1211. a grab rail portion; 122. a front cross bar; 123. a rear cross bar; 124. a pushing handle; 1241. pushing the handle bar; 1101. a first slider; 1102. a second slider; 2. a front wheel assembly; 21. a front wheel; 22. a front axle; 3. a rear wheel assembly; 31. a rear wheel; 32. rear wheel axle.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
The description of the directions of up and down, left and right, front and back, inside and outside, etc. in this document refers to the directions of up and down, left and right, front and back, inside and outside, etc. observed by a child when the child sits in the stroller normally
Referring to fig. 1, a stroller comprises a stroller frame 1 having an unfolded state and a folded state, a front wheel assembly 2 and a rear wheel assembly 3 provided at the bottom of the stroller frame 1, and a locking mechanism for locking the stroller frame 1 in the unfolded state. The cart frame 1 comprises two groups of side brackets 11 which are respectively arranged at the left side and the right side and transverse brackets which are arranged between the two groups of side brackets 11, the front wheel assembly 2 comprises a front wheel shaft 22 and a front wheel 21 which is rotationally connected with the cart frame 1 through the front wheel shaft 22, and the rear wheel assembly 3 comprises a rear wheel shaft 32 and a rear wheel 31 which is rotationally connected with the cart frame 1 through the rear wheel shaft 32, wherein the axial leads of the front wheel shaft 22 and the rear wheel shaft 32 are mutually parallel and extend along the left-right direction.
As shown in fig. 1 to 4, in the unfolded state, the side brackets 11 on each side include a front strut 111, a rear strut 112, a push rod 113, a side rail 114, a connecting rod 115, a rear strut 116, a link rod 117, and a seat rod 118. Wherein the front wheel axle 22 is rotatably provided at the bottom of the front strut 111; the rear strut 112 comprises a rear upper strut 1121 and a rear lower strut 1122 which are connected in a telescopic manner in a relatively sliding manner along the up-down direction, and the rear wheel shaft 32 is rotatably arranged at the bottom of the rear lower strut 1122; the side rail 114 extends in the front-rear direction, and the rear portion thereof is rotatably connected to the push rod 113 by a second shaft d; the connection rod 115 extends in the front-rear direction, and the front portion thereof is rotatably connected to the front strut 111 through a first shaft c; the rear stay 116 extends in the up-down direction, and the lower part thereof is rotatably connected to the rear lower strut 1122 via a rotation shaft i; one end of the linkage rod 117 is rotatably connected to the lower part of the rear upper strut 1121 through a rotation shaft h, and the other end is rotatably connected to the rear strut 116 through a rotation shaft g, specifically, the linkage rod 117 extends rearward and downward after being connected to the rear upper strut 1121, and the rear part thereof is bent rearward and upward again and is connected to the rear strut 116; the seat post 118 extends in a front-rear direction and gradually inclines downward from front to rear, and has a small height difference at front and rear ends thereof to facilitate seating of a child, and a front portion of the seat post 118 is rotatably coupled to an upper portion of the front strut 111, or an upper portion of the rear upper strut 1121, or a front portion of the side rail 114, and a rear portion of the seat post 118 is coupled to the connecting rod 115 so as to be relatively rotatable as well as relatively slidable along a length direction of the connecting rod 115.
Specifically, the lower part of the rear upper strut 1121 is slidably inserted into the rod cavity 1123 of the rear lower strut 1122, a guide groove 1124 extending in the up-down direction is formed in the rear lower strut 1122, a connecting pin (not shown) is slidably inserted into the guide groove 1124, and the upper end part of the link rod 117 is rotatably connected to the lower part of the rear upper strut 1121 through the rotating shaft h.
Specifically, the first slider 1101 is rotatably connected to the rear portion of the seat post 118 through a rotation shaft j, and the first slider 1101 is provided on the connection rod 115 so as to relatively slide in the longitudinal direction of the connection rod 115.
As shown in fig. 1 to 4, in the present embodiment, the upper portion of the front strut 111, the upper portion of the rear upper strut 1121, the front portion of the side rail 114 and the front portion of the seat bar 118 are rotatably connected together about the first rotation center line a, and are sequentially disposed from outside to inside in the left-right direction of the stroller frame 1, so that a seating space as large as possible can be provided for a child, and the folding of the front wheel assembly 2 and the rear wheel assembly is facilitated when the stroller frame 1 is folded; the lower portion of the push rod 113, the rear portion of the connecting rod 115, and the upper portion of the rear stay 116 are rotatably connected together about the second rotation center line b. Specifically, the first rotation center line a, the second rotation center line b, the axis line of the first shaft c and the axis line of the second shaft d are parallel to each other, when the cart frame 1 is in the unfolded state, the first rotation center line a is positioned at the front upper part of the second rotation center line b, the axis line of the first shaft c is positioned at the front lower part of the first rotation center line a, and the axis line of the second shaft d is positioned at the rear upper part of the second rotation center line b, so that a more comfortable riding space with a seat inclined backwards downwards and a backrest inclined upwards backwards can be provided for children; in addition, in the unfolded state of the cart frame, the rotating shaft h is located at the front upper part of the rotating shaft g, and the rotating shaft h is located at the front upper part of the rotating shaft i, so that the rear supporting rod 116 can slide downwards along the rear lower supporting rod 1122 to be folded in the process of downwards rotating the rear supporting rod 116 and folding the rear lower supporting rod 1122 through the linkage rod 117.
As shown in fig. 1 to 4, the cross bracket includes a front armrest 121, a front rail 122, a rear rail 123, and a push handle 124. The front arm rest 121 includes two sets of arm shaft portions 1211 which are disposed on the left and right sides and are connected to the side brackets 11 on the corresponding sides, the arm shaft portions 1211 extend in the front-rear direction, the rear end portions thereof are rotatably connected to the connecting rod 115 via the rotation shafts f, the side arm rest 114 is rotatably provided with second sliders 1102 via rotation shafts k, and the second sliders 1102 are relatively slidably disposed on the arm shaft portions 1121 in the longitudinal extending direction of the arm shaft portions 1121.
In this embodiment, the first sliding member 1101 and the second sliding member 1102 are specifically sliding sleeves.
As shown in fig. 1 to 4, the push handle 124 has push handle levers 1241 provided separately on the left and right sides, and the lower portion of the push handle levers 1241 is rotatably connected to the upper portion of the push rod 113 on the same side via a rotation shaft e.
As shown in fig. 1 to 4, the axes of the front rail 122 and the rear rail 123 are parallel to each other and extend in the left-right direction, wherein the axis of the front rail 122 coincides with the first rotation center line a, and both ends of the front rail 122 are rotatably connected to the upper portion of the front strut 111, the upper portion of the rear upper strut 1121, the front portion of the side rail 114, and the front portion of the seat post 118; the rear cross bar 123 is secured between the lower portions of the two sets of rear lower struts 1122.
The locking mechanism of the present invention may be disposed between any rod members in the above-mentioned rotational or sliding connection, and in this embodiment, the locking mechanism is disposed between the push rod 1241 and the push rod 113, and between the push rod 113 and the rear stay 116, which is not a specific point of the present invention, and may be a prior art.
As shown in fig. 5 to 6, in the folding process of the cart frame 1 of the present embodiment, the locking mechanism is unlocked first, the push handle 124 is pressed down to rotate with the push rod 113, and then the push rod 113 is pressed down to move the second rotation center line b downward; in the process of rotating and folding the rear stay 116 around the rotation axis i to the rear lower strut 1122, the linkage rod 117 drives the rear upper strut 1121 to slide downwards along the rear lower strut 1122, so that the length of the rear strut 112 is shortened, and the height of the whole vehicle after folding is reduced; at the same time, the side arm rest 114, the seat post 118, the rear upper support rod 1121 and the front support rod 111 are rotated and folded about the first rotation center line a, so as to drive the first slider 1101 to slide forward along the connecting rod 115 and the second slider 1102 to slide upward along the arm rest post 1121, thereby driving the front arm rest 121 and the connecting rod 115 to rotate and fold with the rods. Thus, the cart frame 1 is folded in a linkage way in the up-down and front-back directions, the folding operation is simple, and the folding volume is greatly reduced.
As shown in fig. 7 to 9, when the stroller frame 1 is in a folded state, the front strut 111, the side rail 114, the push rod 113 and the connecting rod 115 in the side brackets 11 on each side are folded together, the front wheel assembly 2 and the rear wheel assembly 3 are folded together, the two sets of rear wheel assemblies 3 are positioned between the two sets of front wheel assemblies 2 along the left-right direction, the distance between the axes of the front wheel axle 22 and the rear wheel axle 32 is small, the front wheel 21 and the rear wheel 31 are partially or completely overlapped in the left-right direction, the volume of the stroller frame 1 is reduced to be small in the front-rear direction, and the stroller frame can stand on the ground and is convenient to carry and store.
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 utility model provides a children's shallow, includes that have the shallow frame of expansion state and folding state, locate front wheel subassembly and rear wheel subassembly of shallow frame bottom, and be used for with the locking mechanical system of shallow frame lock under the expansion state, the shallow frame is including locating the two sets of side brackets of left and right sides, its characterized in that: in the unfolded state, the side brackets on each side comprise:
the front wheel assembly is arranged at the bottom of the front support rod;
the rear support rod comprises a rear upper support rod and a rear lower support rod which are in relative sliding telescopic connection along the up-down direction, and the rear wheel assembly is arranged at the bottom of the rear lower support rod;
A push rod;
a side rail extending in a front-rear direction, a rear portion of the side rail being rotatably connected to the push rod;
The connecting rod extends along the front-back direction, and the front part of the connecting rod is rotationally connected to the front supporting rod;
the rear stay bar extends along the up-down direction, and the lower part of the rear stay bar is rotationally connected to the rear lower support bar;
a linkage rod, one end of which is rotatably connected to the lower part of the rear upper strut, the other end part of the linkage rod is rotationally connected to the rear stay rod;
The upper part of the front supporting rod, the upper part of the rear upper supporting rod and the front part of the side handrail are connected in a rotating way around a first rotating central line, the lower part of the push rod, the rear part of the connecting rod and the upper part of the rear supporting rod are connected in a rotating way around a second rotating central line, and the first rotating central line and the second rotating central line are parallel.
2. The stroller of claim 1, wherein: the front part of the connecting rod is rotationally connected with the front supporting rod through a first shaft, the rear part of the side handrail is rotationally connected with the push rod through a second shaft, the trolley frame is in an unfolding state, the axial lead of the first shaft is positioned below the first rotation central line, and the axial lead of the second shaft is positioned above the second rotation central line.
3. The stroller of claim 1, wherein: the trolley frame is in an unfolding state, and the first rotation center line is higher than the second rotation center line in the vertical direction.
4. The stroller of claim 1, wherein: the side brackets of each side further comprise seat bars extending in the front-rear direction, the front parts of the seat bars are rotatably connected with the upper parts of the front support bars or the upper parts of the rear upper support bars or the front parts of the side armrests, and the rear parts of the seat bars can be connected with the connecting bars in a relatively rotatable manner and relatively slidable manner along the length direction of the connecting bars.
5. The stroller of claim 4, wherein: the front part of the seat rod is rotationally connected with the upper part of the front supporting rod, the upper part of the rear upper supporting rod and the front part of the side handrail around the first rotation center line, the rear part of the seat rod is rotationally connected with a first sliding piece, and the first sliding piece is relatively slidably arranged on the connecting rod along the length direction of the connecting rod.
6. The stroller of claim 5, wherein: along the left and right directions of the cart frame, the side armrests, the front support rods, the seat rods and the rear upper support rods are sequentially arranged from outside to inside and are rotationally connected together through the same rotating shaft.
7. The stroller of claim 1, wherein: the cart frame also comprises a front handrail arranged between the side brackets on two sides, the front handrail comprises two groups of handrail rod parts which are respectively arranged on the left side and the right side and are connected with the side brackets on the corresponding sides, the handrail rod parts extend along the front-back direction, the rear end parts of the handrail rod parts are rotationally connected to the connecting rods, a second sliding part is rotationally arranged on the side handrail, and the second sliding part can be arranged on the handrail rod parts in a relative sliding manner along the length extending direction of the handrail rod parts.
8. The stroller of claim 1, wherein: the lower part of the rear upper supporting rod is inserted in the rod cavity of the rear lower supporting rod in a sliding manner, a guide groove extending along the up-down direction is formed in the rear lower supporting rod, a connecting pin is arranged in the guide groove in a penetrating manner in a sliding fit manner, and one end part of the linkage rod is rotationally connected with the lower part of the rear upper supporting rod through the connecting pin.
9. The stroller of claim 1, wherein: the cart frame also comprises pushing handles arranged between the upper parts of the pushing rods at the two sides, the pushing handles are provided with pushing handle rods which are respectively arranged at the left side and the right side, and the lower parts of the pushing handle rods are rotationally connected with the upper parts of the pushing rods at the same side.
10. A stroller according to any one of claims 1 to 9, wherein: when the trolley frame is in a folded state, the front support rod, the side handrails, the push rod and the connecting rod in the side support at each side are mutually folded, the front wheel assembly and the rear wheel assembly are mutually folded, and the two groups of rear wheel assemblies are positioned between the two groups of front wheel assemblies along the left-right direction.
CN202011189573.5A 2020-10-30 2020-10-30 Child cart Active CN112407013B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011189573.5A CN112407013B (en) 2020-10-30 2020-10-30 Child cart

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011189573.5A CN112407013B (en) 2020-10-30 2020-10-30 Child cart

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CN112407013A CN112407013A (en) 2021-02-26
CN112407013B true CN112407013B (en) 2024-11-05

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Publication number Priority date Publication date Assignee Title
CN115071803B (en) * 2022-08-16 2023-01-31 好孩子儿童用品有限公司 Children's barrow

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN213831850U (en) * 2020-10-30 2021-07-30 好孩子儿童用品有限公司 Children's barrow

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Publication number Priority date Publication date Assignee Title
JP5894415B2 (en) * 2011-11-01 2016-03-30 コンビ株式会社 Foldable stroller
CN206217965U (en) * 2016-11-22 2017-06-06 中山市宝蓓悠日用制品有限公司 Perambulator skeleton
CN208411833U (en) * 2018-05-23 2019-01-22 绍兴上虞日星五金制品有限公司 A kind of folding children's trolley
CN208813289U (en) * 2018-08-14 2019-05-03 广州奥飞婴童用品有限公司 trolley

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
CN213831850U (en) * 2020-10-30 2021-07-30 好孩子儿童用品有限公司 Children's barrow

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