CN109278838B - Child cart - Google Patents
Child cart Download PDFInfo
- Publication number
- CN109278838B CN109278838B CN201811299326.3A CN201811299326A CN109278838B CN 109278838 B CN109278838 B CN 109278838B CN 201811299326 A CN201811299326 A CN 201811299326A CN 109278838 B CN109278838 B CN 109278838B
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- CN
- China
- Prior art keywords
- frame
- push rod
- rod
- bracket
- stroller
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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.)
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- 230000007246 mechanism Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification 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
-
- 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
- B62B7/064—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable the handle bar being parallel to the front leg
Landscapes
- 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)
Abstract
The invention discloses a baby stroller, which comprises a front wheel bracket, a rear wheel bracket and a push rod bracket, wherein the front wheel bracket, the rear wheel bracket and the push rod bracket extend along the up-down direction respectively, two of the upper part of the front wheel bracket, the upper part of the rear wheel bracket and the lower part of the push rod bracket are rotationally connected, and a third party is rotationally connected with one of the two or the three, the baby stroller frame also comprises a front connecting frame which is pivotally connected on the front wheel bracket, a rear connecting frame and a seat bracket, the rear part of the seat bracket is pivotally connected on the push rod bracket, one end part of the front connecting frame is pivotally connected with the front part of the seat rod bracket, the other end part of the front connecting frame is pivotally connected with the front part of the rear connecting frame, and the rear part of the rear connecting frame is pivotally connected on the rear wheel bracket. Each rod piece on the folded cart frame can be tightly folded and is in a regular shape, the volume of the cart frame is small, and great convenience is brought to daily carrying and storage of users.
Description
Technical Field
The invention relates to a child stroller.
Background
The baby carriage plays an important role in carrying babies in daily life for users, and is an indispensable child product in the growth process of children. In the prior art, the child stroller has various structures, the connection relation of each rod piece is different, the bearing stability of the stroller, the mode of installing the seat, the folding mode and the folding principle of the frame are different, and the folded shape and volume are different. On the basis of good bearing performance, the structure of the rod piece is simpler, the folding operation is more convenient, the volume after folding is smaller, and the child stroller is always a target continuously pursued by the person skilled in the art.
Disclosure of Invention
The invention aims to provide a novel-structure child cart.
In order to achieve the above purpose, the invention adopts the following technical scheme: a child cart comprising a cart frame having an unfolded state and a folded state, a wheel assembly provided at the bottom of the cart frame, and a locking mechanism for locking the cart frame in the unfolded state, the cart frame comprising a front wheel bracket, a rear wheel bracket and a push rod bracket each extending in an up-down direction, two of the upper part of the front wheel bracket, the upper part of the rear wheel bracket and the lower part of the push rod bracket being rotatably connected, and a third one of the two being rotatably connected, or the three being rotatably connected together,
The cart frame further comprises a front connecting frame which is pivotally connected to the front wheel support, a rear connecting frame and a seat frame, wherein the rear connecting frame and the seat frame extend in the front-rear direction respectively, the rear portion of the seat frame is pivotally connected to the push rod frame, one end portion of the front connecting frame is pivotally connected to the front portion of the seat frame, the other end portion of the front connecting frame is pivotally connected to the front portion of the rear connecting frame, and the rear portion of the rear connecting frame is pivotally connected to the rear wheel support.
Preferably, the front wheel support is including locating two front struts of left and right sides respectively, the rear wheel support is including locating two rear struts of left and right sides respectively, the push rod frame is including locating two push rods of left and right sides respectively, on each side about the shallow frame, the upper portion of front strut with connect through first axle pivot between the lower part of push rod, the upper portion of rear strut is in through second axle pivot connection the upper portion of front strut, first axle with the axial lead of second axle sets up in parallel each other.
Further, the front strut includes a main body rod portion extending obliquely upward from front to back, a connecting rod portion extending obliquely rearward and downward from an upper portion of the main body rod portion, and an upper portion of the rear strut is pivotally connected to a lower portion of the connecting rod portion through the second shaft.
Further, the locking mechanism comprises a locking joint arranged between the upper part of the front supporting rod and the lower part of the push rod, the push rod comprises a lower push rod and an upper push rod which can be folded relatively along the length direction, and a push rod locking piece for locking the upper push rod and the lower push rod relatively, and the push rod locking piece and the locking joint are arranged in a linkage unlocking manner.
Further, the seat frame comprises two seat rods which are respectively arranged at the left side and the right side and extend along the front-back direction, the rear parts of the seat rods are connected to the push rod through a third shaft pivot, and the third shaft is positioned above the first shaft on the push rod.
Further, the rear connecting frame comprises two rear connecting rods which are respectively arranged at the left side and the right side and extend along the front-rear direction, the rear parts of the rear connecting rods are connected to the rear supporting rods at the same side through fourth shaft pivot shafts, and the fourth shafts are positioned below the second shafts on the rear supporting rods.
Preferably, the front connecting frame comprises two front connecting rods which are respectively arranged at the left side and the right side, the cart frame further comprises an opening U-shaped handrail frame, and the rear parts of the two sides of the handrail frame are respectively connected with the upper parts of the front connecting rods at the two sides.
Further, the front connecting rod is pivotally connected to the front wheel support through a rotation shaft, the front support rod is at least provided with a front rod portion located at the front side of the rotation shaft, the handrail frame is at least provided with side rod portions located at the left side and the right side, the rear portions of the side rod portions are fixedly connected to the upper portion of the front rod portion, and the side rod portions and the front rod portion extend along the same length direction.
Preferably, when the cart frame is in a folded state, the push rod frame is folded at the front side of the front wheel support, the rear wheel support is folded at the rear side of the front wheel support, and the seat frame and the front connecting frame are folded among the push rod frame, the front wheel support and the rear wheel support.
Preferably, the wheel assembly comprises a front wheel arranged at the bottom of the front wheel bracket and a rear wheel arranged at the bottom of the rear wheel bracket, when the cart frame is in a folded state, the rear wheel bracket is folded at the rear side of the front wheel bracket, and the rear wheel is folded above the front wheel.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages: the baby stroller disclosed by the invention has the advantages that the stroller frame only comprises the front wheel bracket, the rear wheel bracket, the push rod bracket, the seat bracket, the front connecting bracket and the rear connecting bracket, the structure of the stroller frame in the unfolded state is very concise, and the bearing stability is good; the folding operation is also very convenient, and each member on the folding cart frame can be closely drawn in, and presents comparatively regular shape, and its volume is less, has brought very big facility for user's daily carrying and accomodating.
Drawings
FIG. 1 is a perspective view of a stroller according to the present invention in an unfolded state;
FIG. 2 is a front view of the child stroller in an unfolded state according to the present invention;
FIG. 3 is a side view of the child stroller of the present invention in an expanded configuration;
FIG. 4 is a side view of the child stroller in a semi-collapsed condition according to the present invention;
FIG. 5 is a side view of the child stroller of the present invention in a collapsed condition;
Wherein: 1. A front strut; 1a, a main body rod part; 1b, a connecting rod part; 2. a rear strut; 3. a push rod; 31. a push rod is downwards pushed; 32. an upper push rod; 33. a push rod locking member; 4. a seat rod; 5. a front link; 5a, a front rod part; 5b, a rear lever portion; 6. a rear connecting rod; 7. a handrail frame; 7a, side lever parts; 8. a front cross bar; 9. a rear cross bar; 10. a rotating shaft; 11. locking the joint; 12. a second shaft; 13. a third shaft; 14. a fourth shaft; 20. A front wheel; 30. and a rear wheel.
Detailed Description
The technical scheme of the invention is further described below with reference to the attached drawings and specific embodiments.
Referring to the stroller shown in fig. 1-5, the stroller comprises a stroller frame having an expanded configuration and a collapsed configuration, a wheel assembly disposed at a bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the expanded configuration. The cart frame comprises a front wheel bracket, a rear wheel bracket, a push rod bracket, a front connecting bracket, a rear connecting bracket and a seat bracket, wherein the front wheel bracket, the rear wheel bracket, the push rod bracket, the front connecting bracket are connected to the front wheel bracket in a pivot mode, and the rear connecting bracket and the seat bracket extend in the front-rear direction respectively.
The front wheel support comprises two front support rods 1 which are respectively arranged at the left side and the right side, the rear wheel support comprises two rear support rods 2 which are respectively arranged at the left side and the right side, the push rod support comprises two push rods 3 which are respectively arranged at the left side and the right side, the front support rods 1, the rear support rods 2 and the push rods 3 respectively extend along the up-down direction, two of the upper part of the front support rods 1, the upper part of the rear support rods 2 and the lower part of the push rods 3 are rotationally connected, and a third party is rotationally connected with one of the two or the three are rotationally connected together.
The front connecting frame comprises two front connecting rods 5 which are respectively arranged at the left side and the right side, the rear connecting frame comprises two rear connecting rods 6 which are respectively arranged at the left side and the right side and respectively extend along the front and the rear directions, the seat frame comprises two seat rods 4 which are respectively arranged at the left side and the right side and respectively extend along the front and the rear directions, the front connecting rods 5 are pivotally connected on the front supporting rod 1 through rotating shafts 10, the rear portions of the seat rods 4 are pivotally connected on the push rods 3, one end parts of the front connecting rods 5 are pivotally connected with the front portions of the seat rods 4, the other end parts of the front connecting rods 5 are pivotally connected with the front portions of the rear connecting rods 6, and the rear portions of the rear connecting rods 6 are pivotally connected on the rear supporting rods 2.
In this embodiment, the upper portion of the front strut 1 is pivotally connected to the lower portion of the push rod 3 through a first shaft (not shown in the figure), and the upper portion of the rear strut 2 is pivotally connected to the upper portion of the front strut 1 through a second shaft 12, where the first shaft and the second shaft 12 are two different shafts with axes parallel to each other. In this way, on each of the left and right sides of the cart frame, a four-bar mechanism is formed among the front strut 1, the front link 5, the seat bar 4 and the push bar 3, and another four-bar mechanism is formed among the front strut 1, the rear strut 2, the front link 5 and the rear link 6. The locking mechanism comprises a locking joint 11 arranged between the upper part of the front strut 1 and the lower part of the push rod 3, and when the locking joint 11 is locked, each rod piece in the two four-bar mechanisms is mutually locked so as to lock the frame of the trolley.
In the present embodiment, the push rod 3 includes a lower push rod 31 and an upper push rod 32 which can be relatively folded in the longitudinal direction, and a push rod locking member 33 for locking the lower push rod 31 and the upper push rod 32 relatively, where the upper push rod 32 and the lower push rod 31 are rotatably connected, and the push rod locking member 33 is a push rod locking joint member. The upper part of the front strut 1 is pivotally connected to the lower push rod 31 via a first shaft, a locking joint 11 is provided between the lower push rod 31 and the front strut 1, and the locking joint 11 is provided in a interlocking and unlocking manner with a push rod locking piece 33.
Referring to fig. 1 to 5, further, the front strut 1 includes a main body rod portion 1a extending gradually upward from front to back, and a connecting rod portion 1b extending gradually rearward and downward from an upper portion of the main body rod portion 1a, an upper portion of the rear strut 2 is pivotally connected to a lower portion of the connecting rod portion 1b via a second shaft 12, and when the stroller frame is in a deployed state, the connecting rod portion 1b extends in the same length direction as the rear strut 2 on the same side; the pivot joint 11 is provided at the upper portion of the connecting rod portion 1b and connected to the push down rod 32.
The rear part of the seat post 4 is pivotally connected to the push down rod 31 by a third shaft 13, the third shaft 13 being located above the first shaft; the rear part of the rear link 6 is pivotally connected to the rear strut 2 by a fourth shaft 14, which fourth shaft 14 is located below the second shaft 12 on the rear strut 2.
Referring to the drawings, the cart frame further comprises an opening U-shaped armrest frame 7, wherein the rear parts of the two sides of the armrest frame 7 are respectively connected with the upper parts of the front connecting rods 5 on the two sides, and synchronously move with the front connecting rods 5 to participate in the folding of the cart frame. Specifically, the front link 5 has a front lever portion 5a and a rear lever portion 5b provided separately on both front and rear sides of the rotation shaft 10, the armrest frame 7 has at least side lever portions 7a provided separately on both left and right sides, and the rear portions of the side lever portions 7a are fixedly connected to the upper portion of the front lever portion 5a, and the side lever portions 7a and the front lever portion 5a extend in the same longitudinal direction. When the armrest frame is specifically arranged, the armrest frame 7 can be arranged on the front connecting rods 5 on two sides in a detachable connection mode.
The cart frame further comprises a plurality of cross bars, such as a front cross bar 8 arranged between the lower parts of the front support bars 1 at two sides and a rear cross bar 9 arranged between the lower parts of the rear support bars 2 at two sides, wherein the rear connecting bars 6 at two sides are integrally arranged to form a U-shaped bar with a forward opening, and the push rods 32 at two sides are integrally arranged to form a U-shaped bar with a downward opening. The wheel assembly comprises a front wheel 20 arranged at the bottom of the front strut 1 and a rear wheel 30 arranged at the bottom of the rear strut 2.
In this way, when the frame of the cart is locked in the unfolded state, as shown in fig. 1 to 3, the front strut 1, the rear link 2, the front link 5 and the rear link 6 are relatively locked and supported on the ground through the front wheel 20 and the rear wheel 30, the seat rod 4 is between the front link 5 and the push rod 3, so that stable bearing support can be provided, and the frame of the cart in the unfolded state has simple structure and good bearing capacity.
When the cart frame is folded, as shown in fig. 4, the push rod locking piece 33 is unlocked and linked to unlock the locking joint 11, the upper push rod 32 is pushed forward and downward, the upper push rod 32 and the lower push rod 31 are gradually rotated and folded, the lower push rod 31 is gradually rotated and folded forward towards the front support rod 1, and the seat rod 4 and the front connecting rod 5 are rotated and gradually folded between the lower push rod 31 and the front support rod 1; simultaneously, the front connecting rod 5 rotates and drives the rear connecting rod 6 to rotate, so that the rear supporting rod 2 gradually rotates towards the front supporting rod 1 to be folded. As shown in fig. 5, the folded cart frame is folded on each side of the cart frame, and the upper push rod 32, the lower push rod 31, the front support rod 1 and the rear support rod 2 are folded in sequence, and the seat rod 4, the front connecting rod 5 and the rear support rod 6 are folded among the lower push rod 31, the front support rod 1 and the rear support rod 2; the rear strut 2 is folded to the rear side of the front strut 1 and the rear wheel 30 is folded over the front wheel 20. The folded trolley frame has a very smooth structure and a small volume.
When the cart frame is opened, an operator only needs to pull the push rod 32, so that each rod piece on the cart frame can be rotated relatively to be opened gradually, and the operation is convenient.
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 (7)
1. A child stroller comprising a stroller frame having an expanded configuration and a collapsed configuration, a wheel assembly disposed at a bottom of the stroller frame, and a locking mechanism for locking the stroller frame in the expanded configuration, the child stroller being characterized in that: the cart frame comprises a front wheel bracket, a rear wheel bracket and a push rod bracket which extend along the up-down direction respectively, wherein the upper part of the front wheel bracket, the upper part of the rear wheel bracket and the lower part of the push rod bracket are rotationally connected, the third part is rotationally connected with one of the two or the three, the wheel assembly comprises a front wheel arranged at the bottom of the front wheel bracket and a rear wheel arranged at the bottom of the rear wheel bracket,
The cart frame also comprises a front connecting frame which is pivotally connected with the front wheel bracket, a rear connecting frame and a seat frame, wherein the rear connecting frame and the seat frame extend along the front-rear direction respectively, the rear part of the seat frame is pivotally connected with the push rod frame, one end part of the front connecting frame is pivotally connected with the front part of the seat frame, the other end part of the front connecting frame is pivotally connected with the front part of the rear connecting frame, the rear part of the rear connecting frame is pivotally connected with the rear wheel bracket,
Wherein the front connecting frame comprises two front connecting rods which are respectively arranged at the left side and the right side, the cart frame also comprises an opening U-shaped handrail frame, the rear parts of the two sides of the handrail frame are respectively connected with the upper parts of the front connecting rods at the two sides,
The trolley frame is in a unfolding state, the seat frame, the armrest frame and the push rod frame are mutually matched to form a seat area for children to sit and stand,
When the trolley frame is in a folded state, the push rod frame is folded at the front side of the front wheel support, the rear wheel support is folded at the rear side of the front wheel support, the seat frame and the front connecting frame are folded among the push rod frame, the front wheel support and the rear wheel support, the rear wheel support is folded at the rear side of the front wheel support, and the rear wheel is folded above the front wheel.
2. The stroller of claim 1, wherein: the front wheel support is including dividing two preceding branches of locating the left and right sides, the rear wheel support is including dividing two back branches of locating the left and right sides, the push rod frame is including dividing two push rods of locating the left and right sides, on each side about the shallow frame, the upper portion of preceding branch with connect through first axle pivot between the lower part of push rod, the upper portion of back branch is in through second axle pivot connection the upper portion of preceding branch, first axle with the axial lead of second axle sets up in parallel each other.
3. The stroller of claim 2, wherein: the front strut includes a main body rod portion extending obliquely upward from front to back, a connecting rod portion extending obliquely rearward and downward from an upper portion of the main body rod portion, and an upper portion of the rear strut is pivotally connected to a lower portion of the connecting rod portion via the second shaft.
4. The stroller of claim 2, wherein: the locking mechanism comprises a locking joint arranged between the upper part of the front supporting rod and the lower part of the push rod, the push rod comprises a lower push rod and an upper push rod which can be folded relatively along the length direction, and a push rod locking piece for locking the upper push rod and the lower push rod relatively, and the push rod locking piece and the locking joint are arranged in a linkage unlocking manner.
5. The stroller of claim 2, wherein: the seat frame comprises two seat rods which are respectively arranged at the left side and the right side and extend along the front-back direction, the rear parts of the seat rods are connected to the push rod through a third shaft pivot, and the third shaft is positioned above the first shaft on the push rod.
6. The stroller of claim 2, wherein: the rear connecting frame comprises two rear connecting rods which are respectively arranged at the left side and the right side and extend along the front-rear direction, the rear parts of the rear connecting rods are connected to the rear supporting rods at the same side through fourth shafts in a pivot mode, and the fourth shafts are arranged on the rear supporting rods and below the second shafts.
7. The stroller of claim 2, wherein: the front connecting rod is pivotally connected to the front wheel support through a rotating shaft, the front support rod is at least provided with a front rod portion located at the front side of the rotating shaft, the handrail frame is at least provided with side rod portions located at the left side and the right side, the rear portions of the side rod portions are fixedly connected to the upper portions of the front rod portions, and the side rod portions and the front rod portions extend along the same length direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299326.3A CN109278838B (en) | 2018-11-02 | 2018-11-02 | Child cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811299326.3A CN109278838B (en) | 2018-11-02 | 2018-11-02 | Child cart |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109278838A CN109278838A (en) | 2019-01-29 |
| CN109278838B true CN109278838B (en) | 2024-05-10 |
Family
ID=65175173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811299326.3A Active CN109278838B (en) | 2018-11-02 | 2018-11-02 | Child cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109278838B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113562058B (en) * | 2021-09-13 | 2024-12-10 | 安徽呀呀乐儿童用品有限公司 | A baby stroller capable of being folded and linked |
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| CN202806835U (en) * | 2012-08-30 | 2013-03-20 | 好孩子儿童用品有限公司 | Stroller |
| CN203864751U (en) * | 2014-04-30 | 2014-10-08 | 好孩子儿童用品有限公司 | Stroller |
| CN205554266U (en) * | 2016-03-11 | 2016-09-07 | 好孩子儿童用品有限公司 | Double baby carriage |
| WO2017107506A1 (en) * | 2015-12-24 | 2017-06-29 | 浙江晨辉婴宝儿童用品有限公司 | Baby stroller and collapsible mechanism thereof, and method of collapsing and folding baby stroller |
| CN206371761U (en) * | 2016-09-30 | 2017-08-04 | 好孩子儿童用品有限公司 | Children dinning chair |
| CN107618558A (en) * | 2017-08-29 | 2018-01-23 | 好孩子儿童用品有限公司 | Children trolley |
| CN108177679A (en) * | 2018-01-09 | 2018-06-19 | 好孩子儿童用品有限公司 | Children trolley |
| CN209479735U (en) * | 2018-11-02 | 2019-10-11 | 好孩子儿童用品有限公司 | Children trolley |
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2018
- 2018-11-02 CN CN201811299326.3A patent/CN109278838B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201703407U (en) * | 2010-04-20 | 2011-01-12 | 陈鸿凯 | Fast foldable support for baby carriage |
| CN202806835U (en) * | 2012-08-30 | 2013-03-20 | 好孩子儿童用品有限公司 | Stroller |
| CN203864751U (en) * | 2014-04-30 | 2014-10-08 | 好孩子儿童用品有限公司 | Stroller |
| WO2017107506A1 (en) * | 2015-12-24 | 2017-06-29 | 浙江晨辉婴宝儿童用品有限公司 | Baby stroller and collapsible mechanism thereof, and method of collapsing and folding baby stroller |
| CN205554266U (en) * | 2016-03-11 | 2016-09-07 | 好孩子儿童用品有限公司 | Double baby carriage |
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| CN108177679A (en) * | 2018-01-09 | 2018-06-19 | 好孩子儿童用品有限公司 | Children trolley |
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| Publication number | Publication date |
|---|---|
| CN109278838A (en) | 2019-01-29 |
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