CN205220764U - Double -locked formula handcart - Google Patents
Double -locked formula handcart Download PDFInfo
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- CN205220764U CN205220764U CN201520906256.9U CN201520906256U CN205220764U CN 205220764 U CN205220764 U CN 205220764U CN 201520906256 U CN201520906256 U CN 201520906256U CN 205220764 U CN205220764 U CN 205220764U
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- push rod
- interior pipe
- pedestal
- sliding
- stop gear
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Abstract
The utility model discloses a double -locked formula handcart, including an automobile body and the at least telescopic push rod of setting on the automobile body, be provided with a locking mechanical system that can open and close on the push rod, when opening, can lock the push rod at the state of stretching out this locking mechanical system, the push rod on still be provided with a stop gear that can open and close, can restrict the shrinkage degree of push rod when this stop gear opens. Because the utility model discloses in add a stop gear on the push rod, even locking mechanical system breaks down like this, the stop gear who opens also can block push rod retraction, especially when the folding joint of handcart be shrink through the push rod when coming the unblock, this stop gear can break down or the maloperation appear and prevent under the condition about becoming invalid that the unblock from folding the joint at locking mechanical system, has effectively guaranteed user and infant's safety, has eliminated the potential safety hazard, has improved the security performance of this handcart.
Description
Technical field
The utility model relates to a kind of hand barrow.
Background technology
The push rod major part of existing hand barrow have employed Telescopic rod structure, can effectively reduce hand barrow fold after volume, these expansion links can be arranged usually one for locking it in the lockout mechanism of extended state, for convenience of using, the switch of these lockout mechanisms has been arranged on push rod usually, easily there is false touch and close, if in use this lockout mechanism broke down when losing efficacy and also easily hurts infant on user or hand barrow, and, the folding joint of current part hand barrow is unlocked by the contraction of push rod, so in use once lockout mechanism breaks down and lost efficacy, just can shrink at the thrust lower push-rod of user and unlock folding joint, the infant in user and hand barrow can be hurt greatly, there is larger potential safety hazard.
Utility model content
In order to solve the problem, the purpose of this utility model is to provide the double lock type hand barrow that a kind of safety performance is high, effectively can ensure user and infant's safety.
The utility model is the technical scheme that its technical matters of solution adopts:
A kind of double lock type hand barrow, comprise a car body and be arranged at least one telescopic push rod on car body, push rod is provided with a lockout mechanism able to turn on or off, push-rod lock can be fixed on extended state when opening by this lockout mechanism, described push rod is also provided with a stop gear able to turn on or off, the shrinkage degree of push rod when this stop gear is opened, can be limited.
Preferably, described car body is provided with at least one folding joint, the locking and unlocking of described folding joint is controlled by the expanding-contracting action of push rod, folding joint can be unlocked when push rod is contracted to collapsed state, now car body folds by folding joint is folding, push rod can be stoped to be contracted to collapsed state when described stop gear is opened.
Preferably, described folding joint is comprised one first pedestal and is hubbed on one second pedestal on the first pedestal by the drive-connecting shaft of a transverse direction, the first described pedestal laterally slides and is provided with positioning piece, this locations is provided with some positioning teeths around described drive-connecting shaft, first pedestal is provided with for limiting locations relative to the location structure that rotate of the first pedestal around described drive-connecting shaft, second pedestal is provided with the some positioning grooves matched with described positioning teeth, the front portion of positioning teeth is plugged in positioning groove to limit the first pedestal and the second pedestal relatively rotating around described drive-connecting shaft, described locations is provided with the pulling face tilted at angle with the end face of locations, the sidepiece of the first pedestal slides and is provided with a pushing block, the front end of this pushing block is resisted against on pulling face, described pushing block can be promoted and forward slip by the contractive action of push rod, and when push rod is contracted to collapsed state, pushing block moves to after promoting locations by pulling face and makes positioning teeth depart from positioning groove to unlock folding joint.
Preferably, described location structure is the some chutes matched with described positioning teeth be opened on the first pedestal, is provided with one first retracing spring between locations and the first pedestal, and described first retracing spring resets for promoting locations reach.
Preferably, described push rod comprises the outer tube be arranged in main body and is plugged in pipe in one in the inner chamber of outer tube with sliding, and described lockout mechanism and stop gear are all arranged on inner pipe.
Preferably, described stop gear comprise one first locating part in the inner chamber radially sliding and be arranged on interior pipe and slide axially be arranged on interior pipe inner chamber in one first sliding part, the first described sliding part is provided with one first guiding face tilted that to have angle with the center shaft of interior pipe, first locating part is provided with one first guiding block matched with the first guiding face, the sidewall of interior pipe offers one first opening that can pass for the front portion of the first locating part, move to after first guiding face can promote the first guiding block when the first sliding part slides axially along interior pipe and make the front portion of the first locating part move to the side of interior pipe through the first opening, now, along with the relative sliding of inner and outer tubes, the front portion of the first locating part can lean with the aft bulkhead of outer tube the shrinkage degree limiting push rod, described push rod is provided with for driving the first sliding part to make it along interior pipe the first actuating device in axial sliding.
Preferably, the first described actuating device comprises a shifting block and one first hauling rope, described shifting block slides axially and is arranged on the outer wall of push rod, and the two ends of the first hauling rope are separately fixed at and the first sliding part and shifting block make the first sliding part can with shifting block synchronous slide.
Preferably, described lockout mechanism comprise one second locating part in the inner chamber radially sliding and be arranged on interior pipe and slide axially be arranged on interior pipe inner chamber in one second sliding part, the second described sliding part is provided with one second guiding face tilted that to have angle with the center shaft of interior pipe, second locating part is provided with one second guiding block matched with the second guiding face, the sidewall of interior pipe offers one second opening that can pass for the front portion of the second locating part, the sidewall of outer tube offers can with of the second register the 3rd opening, when the second sliding part slides axially along interior pipe, the second guiding face can promote the second guiding block and moves to and make the front portion of the first locating part through the second opening plugging in the 3rd opening to be fixed on outer tube by interior pipe, push rod is provided with the second actuating device moved axially along interior pipe for driving the second sliding part to make it.
Preferably, the second described actuating device comprises a briquetting and one second hauling rope, described briquetting radially slides setting on inner pipe, interior pipe offers first bar hole parallel with interior pipe, briquetting offers the second bar hole tilted that to have angle with the first bar hole, one end of second hauling rope is fixed on the second sliding part, the other end is provided with a sliding shoe, the front portion of this sliding shoe is arranged in the first bar hole, rear portion is plugged in the second bar hole, when briquetting mutually internally caliber can promote sliding shoe to the second bar hole time mobile and make it slide along the first bar hole.
The beneficial effects of the utility model are: owing to having set up a stop gear in the utility model on push rod, even if lockout mechanism breaks down like this, the stop gear opened also can stop that push rod shrinks, particularly when the folding joint of hand barrow be unlocked by the contraction of push rod time, this stop gear can prevent from when lockout mechanism breaks down or occur maloperation and lost efficacy unlocking folding joint, effectively ensure that user and infant's safety, eliminate potential safety hazard, improve the safety performance of this hand barrow.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Fig. 1 is integral structure figure of the present utility model;
Fig. 2 is the partial enlarged drawing of part A in Fig. 1;
Fig. 3 is the structural representation of push rod and folding joint in the utility model;
Fig. 4 is the partial enlarged drawing of part B in Fig. 3;
Fig. 5 is the decomposing schematic representation of stop gear in the utility model;
Fig. 6 is the partial enlarged drawing of C part in Fig. 3;
Fig. 7 is the partial enlarged drawing of D part in Fig. 3;
Fig. 8 is the decomposing schematic representation of lockout mechanism in the utility model;
Fig. 9 is the structural representation of push rod under extended state in the utility model;
Figure 10 is the partial enlarged drawing of E part in Fig. 9;
Figure 11 is the decomposition of folding joint the structural representation after cut-away section in the utility model;
Figure 12 be in the utility model folding joint at the decomposing schematic representation at another visual angle.
Detailed description of the invention
Referring to figs. 1 through Figure 12, a kind of double lock type hand barrow, at least one telescopic push rod 20 comprising a car body 10 and be arranged on car body 10, push rod 20 is provided with a lockout mechanism 30 able to turn on or off, push rod 20 can be locked in extended state when this lockout mechanism 30 is opened, push rod 20 is also provided with a stop gear 40 able to turn on or off, the shrinkage degree of push rod 20 when this stop gear 40 is opened, can be limited.Owing to having set up a stop gear 40 in the utility model on push rod 20, even if lockout mechanism 30 breaks down like this, the stop gear 40 opened also can stop that push rod 20 shrinks, particularly when the folding joint 50 of hand barrow be unlocked by the contraction of push rod 20 time, this stop gear 40 can when lockout mechanism 30 break down or maloperation and lost efficacy prevent unlock folding joint 50, effectively ensure that user and infant's safety, eliminate potential safety hazard, improve the safety performance of this hand barrow.
Each vehicle frame of car body 10 is articulated formation one connecting rod mechanism, thus car body 10 can be folded, the junction of push rod 20 and car body 10 is provided with two folding joints 50, the locking and unlocking of folding joint 50 is controlled by the expanding-contracting action of push rod 20, folding joint 50 can be unlocked when push rod 20 is contracted to collapsed state, now car body 10 folds by folding joint 50 is folding, push rod 20 can be stoped when stop gear 40 is opened to be contracted to collapsed state, thus when when lockout mechanism 30 break down or misuse failure, stop gear 40 can unlock folding joint 50 by anti-throw-out lever 20, ensure the safety of user and infant.
In the present embodiment, folding joint 50 is comprised one first pedestal 51 and is hubbed on one second pedestal 52 on the first pedestal 51 by the drive-connecting shaft 53 of a transverse direction, first pedestal 51 laterally slides and is provided with positioning piece 54, this locations 54 is provided with some positioning teeths 541 around drive-connecting shaft 53, first pedestal 51 is provided with for limiting locations 54 relative to the location structure that rotate of the first pedestal 51 around drive-connecting shaft 53, second pedestal 52 is provided with the some positioning grooves 521 matched with positioning teeth 541, the front portion of positioning teeth 541 is plugged in positioning groove 521 to limit the first pedestal 51 and the second pedestal 52 relatively rotating around drive-connecting shaft 53, locations 54 is provided with the pulling face 542 tilted at angle with the end face of locations 54, the sidepiece of the first pedestal 51 slides and is provided with a pushing block 55, the front end of this pushing block 55 is resisted against on pulling face 542, pushing block 55 can be promoted and forward slip by the contractive action of push rod 20, when push rod 20 is contracted to collapsed state, pushing block 55 moves to after promoting locations 54 by pulling face 542 and makes positioning teeth 541 depart from positioning groove 521, the unblock of folding joint 50 can be completed thus, this folding joint 50 structure is simple, be easy to produce and assembling, and positioning teeth 541 only need be made to be arranged on locations 54 around drive-connecting shaft 53 array, identical with seasonal each positioning teeth 541 shape, flexibly push rod 20 can be fixed on multiple angle, easy to use, certainly, in practical application, folding joint 50 also can adopt other conventional structures, be not limited thereto.In the present embodiment, location structure is the some chutes 511 matched with positioning teeth 541 be opened on the first pedestal 51, one first retracing spring (not shown) is provided with between locations 54 and the first pedestal 51, first retracing spring resets for promoting locations 54 reach, easy to use.
Push rod 20 comprises the outer tube 21 be arranged in main body and is plugged in pipe 22 in one in the inner chamber of outer tube 21 with sliding; lockout mechanism 30 and stop gear 40 are all arranged on interior pipe 22; be convenient to arrange corresponding control setup; handled easily uses; lockout mechanism 30 and stop gear 40 can be avoided to expose; make the appearance of this hand barrow more regular attractive in appearance, also can protect lockout mechanism 30 and stop gear 40, reduce fault.Stop gear 40 comprise one first locating part 41 in the inner chamber radially sliding and be arranged on interior pipe 22 and slide axially be arranged on interior pipe 22 inner chamber in one first sliding part 42, first sliding part 42 is provided with one first guiding face 421 tilted that to have angle with the center shaft of interior pipe 22, first locating part 41 is provided with one first guiding block 411 matched with the first guiding face 421, the sidewall of interior pipe 22 offers one first opening that can pass for the front portion of the first locating part 41, move to after first guiding face 421 can promote the first guiding block 411 when the first sliding part 42 slides axially along interior pipe 22 and make the front portion of the first locating part 41 move to the side of interior pipe 22 through the first opening, now, along with the relative sliding of interior pipe 22 and outer tube 21, the front portion of the first locating part 41 can lean with the aft bulkhead of outer tube 21 shrinkage degree limiting push rod 20, push rod 20 is provided with for driving the first sliding part 42 to make it along interior pipe 22 first actuating device in axial sliding, this stop gear 40 is simple and reliable for structure, is convenient to assembling.First actuating device comprises shifting block 43 and one first hauling rope 44, shifting block 43 slide axially be arranged on push rod 20 outer wall on, the two ends of the first hauling rope 44 are separately fixed at and the first sliding part 42 and shifting block 43 make the first sliding part 42 can with shifting block 43 synchronous slide, structure is simple, be easy to operation, between the first locating part 41 and interior pipe 22, one second retracing spring 451 is provided with in the present embodiment, the first locating part 41 can be promoted move forward and stop gear 40 remained on opening, improve the safety performance of this perambulator, ensure use safety, convenient operation uses, because size limit, the elastic force of the second retracing spring 451 is limited, one the 3rd retracing spring 452 is provided with between the first sliding part 42 and interior pipe 22, one the 4th retracing spring 453 is provided with between shifting block 43 and interior pipe 22, ensure the normal use of stop gear 40.
Lockout mechanism 30 comprise one second locating part 31 in the inner chamber radially sliding and be arranged on interior pipe 22 and slide axially be arranged on interior pipe 22 inner chamber in one second sliding part 32, second sliding part 32 is provided with one second guiding face 321 tilted that to have angle with the center shaft of interior pipe 22, second locating part 31 is provided with one second guiding block 311 matched with the second guiding face 321, the sidewall of interior pipe 22 offers one second opening that can pass for the front portion of the second locating part 31, the sidewall of outer tube 21 offers can with of the second register the 3rd opening, when the second sliding part 32 slides axially along interior pipe 22, the second guiding face 321 can promote the second guiding block 311 and moves to and make the front portion of the first locating part 41 through the second opening plugging in the 3rd opening to be fixed on outer tube 21 by interior pipe 22, push rod 20 is provided with the second actuating device moved axially along interior pipe 22 for driving the second sliding part 32 to make it.The similar of this structure and stop gear 40, simple and reliable for structure, be convenient to mass production and assembling, can effectively enhance productivity.Second actuating device comprises briquetting 33 and one second hauling rope 34, briquetting 33 radially slides and is arranged on interior pipe 22, interior pipe 22 offers first bar hole 35 parallel with interior pipe 22, briquetting 33 offers the second bar hole 331 tilted that to have angle with the first bar hole 35, one end of second hauling rope 34 is fixed on the second sliding part 32, the other end is provided with a sliding shoe 341, the front portion of this sliding shoe 341 is arranged in the first bar hole 35, rear portion is plugged in the second bar hole 331, when the mutually internal pipe 22 of briquetting 33 moves radially, the second bar hole 331 can promote sliding shoe 341 and makes it slide along the first bar hole 35, owing to there being two folding joints 50 in the present embodiment, therefore two lockout mechanisms 30 are needed, two the second bar holes 331 can be offered accordingly on briquetting 33, so just, control two lockout mechanisms 30 by briquetting 33 simultaneously, easy to use.
In addition, in the present embodiment, a sheathed soft gum cover 23 in the rear end of outer tube 21, when push rod 20 shrinks, the first locating part 41 can be resisted against on this soft gum cover 23, reduce the impulsive force that the first locating part 41 is subject to, improve safety performance further, ensure the safety of user and infant.
The foregoing is only preferred embodiments of the present utility model, as long as the technical scheme realizing the utility model object with basic same approach all belongs within protection domain of the present utility model.
Claims (9)
1. a double lock type hand barrow, comprise a car body (10) and be arranged at least one telescopic push rod (20) on car body (10), push rod (20) is provided with a lockout mechanism (30) able to turn on or off, push rod (20) can be locked in extended state when opening by this lockout mechanism (30), it is characterized in that: described push rod (20) is also provided with a stop gear (40) able to turn on or off, the shrinkage degree of push rod (20) when this stop gear (40) is opened, can be limited.
2. a kind of double lock type hand barrow according to claim 1, it is characterized in that: described car body (10) is provided with at least one folding joint (50), the locking and unlocking of described folding joint (50) is controlled by the expanding-contracting action of push rod (20), folding joint (50) can be unlocked when push rod (20) is contracted to collapsed state, now car body (10) folds by folding joint (50) is folding, push rod (20) can be stoped to be contracted to collapsed state when described stop gear (40) is opened.
3. a kind of double lock type hand barrow according to claim 2, it is characterized in that: described folding joint (50) is comprised one first pedestal (51) and is hubbed on one second pedestal (52) on the first pedestal (51) by the drive-connecting shaft (53) of a transverse direction, upper laterally slip of described the first pedestal (51) is provided with positioning piece (54), this locations (54) is provided with some positioning teeths (541) around described drive-connecting shaft (53), first pedestal (51) is provided with for limiting locations (54) relative to the location structure that rotate of the first pedestal (51) around described drive-connecting shaft (53), second pedestal (52) is provided with the some positioning grooves (521) matched with described positioning teeth (541), the front portion of positioning teeth (541) is plugged in positioning groove (521) to limit the first pedestal (51) and the second pedestal (52) relatively rotating around described drive-connecting shaft (53), described locations (54) is provided with the pulling face (542) tilted at angle with the end face of locations (54), the sidepiece of the first pedestal (51) slides and is provided with a pushing block (55), the front end of this pushing block (55) is resisted against on pulling face (542), described pushing block (55) can be promoted and forward slip by the contractive action of push rod (20), when push rod (20) is contracted to collapsed state, pushing block (55) moves to after promoting locations (54) by pulling face (542) and makes positioning teeth (541) depart from positioning groove (521) to unlock folding joint (50).
4. a kind of double lock type hand barrow according to claim 3, it is characterized in that: described location structure is for being opened in the some chutes (511) matched with described positioning teeth (541) on the first pedestal (51), be provided with one first retracing spring between locations (54) and the first pedestal (51), described first retracing spring resets for promoting locations (54) reach.
5. a kind of double lock type hand barrow according to claim 1, it is characterized in that: described push rod (20) comprises and is arranged on an outer tube (21) in main body and slip is plugged in pipe (22) in one in the inner chamber of outer tube (21), and described lockout mechanism (30) and stop gear (40) are all arranged on interior pipe (22).
6. a kind of double lock type hand barrow according to claim 5, it is characterized in that: described stop gear (40) comprise one first locating part (41) in the inner chamber radially sliding and be arranged on interior pipe (22) and slide axially be arranged on interior pipe (22) inner chamber in one first sliding part (42), described the first sliding part (42) is provided with one first guiding face (421) tilted that to have angle with the center shaft of interior pipe (22), first locating part (41) is provided with one first guiding block (411) matched with the first guiding face (421), the sidewall of interior pipe (22) offers one first opening that can pass for the front portion of the first locating part (41), move to after first guiding face (421) can promote the first guiding block (411) when the first sliding part (42) slides axially along interior pipe (22) and make the front portion of the first locating part (41) move to the side of interior pipe (22) through the first opening, now, along with the relative sliding of interior pipe (22) and outer tube (21), the front portion of the first locating part (41) can lean with the aft bulkhead of outer tube (21) shrinkage degree limiting push rod (20), described push rod (20) is provided with for driving the first sliding part (42) to make it along interior pipe (22) the first actuating device in axial sliding.
7. a kind of double lock type hand barrow according to claim 6, it is characterized in that: the first described actuating device comprises a shifting block (43) and one first hauling rope (44), described shifting block (43) slide axially be arranged on push rod (20) outer wall on, the two ends of the first hauling rope (44) be separately fixed at the first sliding part (42) and shifting block (43) upper and make the first sliding part (42) can with shifting block (43) synchronous slide.
8. a kind of double lock type hand barrow according to claim 5, it is characterized in that: described lockout mechanism (30) comprise one second locating part (31) in the inner chamber radially sliding and be arranged on interior pipe (22) and slide axially be arranged on interior pipe (22) inner chamber in one second sliding part (32), described the second sliding part (32) is provided with one second guiding face (321) tilted that to have angle with the center shaft of interior pipe (22), second locating part (31) is provided with one second guiding block (311) matched with the second guiding face (321), the sidewall of interior pipe (22) offers one second opening that can pass for the front portion of the second locating part (31), the sidewall of outer tube (21) offers can with of the second register the 3rd opening, when the second sliding part (32) slides axially along interior pipe (22), the second guiding face (321) can promote the second guiding block (311) and moves to and make the front portion of the first locating part (41) through the second opening plugging in the 3rd opening to be fixed on outer tube (21) by interior pipe (22), push rod (20) is provided with the second actuating device moved axially along interior pipe (22) for driving the second sliding part (32) to make it.
9. a kind of double lock type hand barrow according to claim 8, it is characterized in that: the second described actuating device comprises a briquetting (33) and one second hauling rope (34), described briquetting (33) radially slides and is arranged on interior pipe (22), interior pipe (22) offers first bar hole (35) parallel with interior pipe (22), briquetting (33) offers the second bar hole (331) tilted that to have angle with the first bar hole (35), one end of second hauling rope (34) is fixed on the second sliding part (32), the other end is provided with a sliding shoe (341), the front portion of this sliding shoe (341) is arranged in the first bar hole (35), rear portion is plugged in the second bar hole (331), internally manage the second bar hole (331) when (22) move radially mutually when briquetting (33) sliding shoe (341) can be promoted make it slide along the first bar hole (35).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906256.9U CN205220764U (en) | 2015-11-12 | 2015-11-12 | Double -locked formula handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520906256.9U CN205220764U (en) | 2015-11-12 | 2015-11-12 | Double -locked formula handcart |
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| Publication Number | Publication Date |
|---|---|
| CN205220764U true CN205220764U (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520906256.9U Active CN205220764U (en) | 2015-11-12 | 2015-11-12 | Double -locked formula handcart |
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| CN (1) | CN205220764U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080737A (en) * | 2016-08-01 | 2016-11-09 | 苏州逗乐儿童用品有限公司 | A kind of push rod of perambulator |
| WO2018014437A1 (en) * | 2016-07-18 | 2018-01-25 | 林朝熙 | Foldable baby stroller |
| CN108313111A (en) * | 2018-02-09 | 2018-07-24 | 中山市少侠王塑料制品有限公司 | A kind of perambulator skeleton convenient for folding |
| CN114735066A (en) * | 2022-03-01 | 2022-07-12 | 晨辉婴宝儿童用品有限公司 | Hand cart |
-
2015
- 2015-11-12 CN CN201520906256.9U patent/CN205220764U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018014437A1 (en) * | 2016-07-18 | 2018-01-25 | 林朝熙 | Foldable baby stroller |
| CN106080737A (en) * | 2016-08-01 | 2016-11-09 | 苏州逗乐儿童用品有限公司 | A kind of push rod of perambulator |
| CN108313111A (en) * | 2018-02-09 | 2018-07-24 | 中山市少侠王塑料制品有限公司 | A kind of perambulator skeleton convenient for folding |
| CN108313111B (en) * | 2018-02-09 | 2024-02-20 | 中山市少侠王塑料制品有限公司 | Baby carriage framework convenient to fold |
| CN114735066A (en) * | 2022-03-01 | 2022-07-12 | 晨辉婴宝儿童用品有限公司 | Hand cart |
| CN114735066B (en) * | 2022-03-01 | 2023-11-21 | 晨辉婴宝儿童用品有限公司 | Barrows with wheels |
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