CN109466614B - Foldable trolley - Google Patents

Foldable trolley Download PDF

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Publication number
CN109466614B
CN109466614B CN201811574500.0A CN201811574500A CN109466614B CN 109466614 B CN109466614 B CN 109466614B CN 201811574500 A CN201811574500 A CN 201811574500A CN 109466614 B CN109466614 B CN 109466614B
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CN
China
Prior art keywords
assembly
seat
unlocking
armrest
push rod
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Application number
CN201811574500.0A
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Chinese (zh)
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CN109466614A (en
Inventor
周洁
赖春华
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.)
Jiangsu Little Dinosaur Children's Products Group Co ltd
Original Assignee
Jiangsu Little Dinosaur Children's Products Group Co ltd
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Application filed by Jiangsu Little Dinosaur Children's Products Group Co ltd filed Critical Jiangsu Little Dinosaur Children's Products Group Co ltd
Priority to CN201811574500.0A priority Critical patent/CN109466614B/en
Publication of CN109466614A publication Critical patent/CN109466614A/en
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Publication of CN109466614B publication Critical patent/CN109466614B/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
    • B62B2205/00Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/20Catches; Locking or releasing an articulation

Abstract

The invention belongs to the field of infant carts, and discloses a foldable cart which comprises a push rod assembly, a front support assembly and a rear support assembly which are respectively and rotatably connected with the push rod assembly, a seat plate and a handrail assembly which are also rotatably connected with the push rod assembly, and a first locking mechanism which slides on the handrail assembly and is rotatably connected with one end of the seat plate and is used for locking the seat plate and the handrail assembly; the second locking mechanism comprises a locking piece and an unlocking seat, wherein the locking piece is fixedly connected to the front bracket assembly, the unlocking seat is rotationally connected to the push rod assembly, and a locking piece is arranged on the unlocking seat and can be locked on the locking piece; when the first locking mechanism locks the seat plate and the armrest assembly, the armrest assembly and the unlocking seat are mutually locked. The foldable trolley provided by the invention can be folded through the linkage effect of the first locking mechanism and the second locking mechanism, is convenient to fold, has a small volume after being folded, is convenient to carry and travel, and improves the use experience of users.

Description

Foldable trolley
Technical Field
The invention relates to the field of infant carts, in particular to a foldable cart.
Background
The cart is used as a necessary tool for children to travel and is used by vast users. At present, users pay more attention to the characteristics of small size, portability, foldability and the like of the baby stroller in addition to the basic requirement of pursuing the stability and the safety of the baby stroller. The length of the folded cart in the current market is longer, the folding volume is larger, and the folding is complicated, so that the use experience of a user is poor.
Disclosure of Invention
The invention aims to provide a foldable trolley, which solves the problems of long length, large volume and complicated folding of the existing trolley after folding.
To achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a collapsible shallow, includes the push rod subassembly, respectively with push rod subassembly rotates the fore-stock subassembly and the back support subassembly of being connected, push rod subassembly still rotates and is connected with bedplate and handrail subassembly, still includes:
a first locking mechanism sliding on the armrest assembly for locking the seat plate and the armrest assembly;
the second locking mechanism comprises a locking piece and an unlocking seat, wherein the locking piece is fixedly connected with the front bracket assembly, the unlocking seat is rotatably connected with the push rod assembly, a locking piece is arranged on the unlocking seat, and the locking piece can be locked on the locking piece;
the first locking mechanism locks the seat plate and the armrest assembly, and the armrest assembly and the unlocking seat are mutually locked.
Preferably, the first locking mechanism comprises a sliding sleeve and an unlocking block, the sliding sleeve slides on the armrest assembly, the sliding sleeve, the unlocking block and the seat plate are coaxially connected in a pin joint, and the unlocking block can rotate around a pin joint with the seat plate and is clamped in the armrest assembly.
Preferably, the handrail assembly comprises handrail upright rods which are symmetrically arranged, and two ends of the sliding sleeve are respectively and slidably sleeved on the two handrail upright rods.
Preferably, the armrest assembly further comprises a cross bar fixedly connected between the two armrest upright bars, the unlocking block is provided with a clamping hook portion, and the clamping hook portion can be clamped at the cross bar.
Preferably, the armrest assembly further comprises a clamping block fixedly connected to the armrest upright rod, the unlocking seat is provided with a limiting part, and the limiting part can be abutted to the clamping block.
Preferably, the locking piece is provided with an opening groove, the locking piece is a pin shaft arranged on the unlocking seat, and the pin shaft can be clamped in the opening groove.
Preferably, the unlocking seat is provided with a cavity, a spring seat is arranged in the cavity, a spring is arranged between the spring seat and the cavity, and the pin shaft is fixedly arranged on the spring seat in a penetrating manner and penetrates through the unlocking seat.
Preferably, the unlocking seat further comprises a handle, and the handle is used for driving the unlocking seat to rotate relative to the push rod assembly.
Preferably, the front bracket assembly and the rear bracket assembly are respectively and rotatably connected to two ends of the connecting rod.
Preferably, the novel multifunctional backrest comprises a backrest assembly, wherein the backrest assembly comprises a backrest with the bottom connected with the seat board in a rotating mode, a backrest stay bar is connected in the middle of the backrest in a rotating mode, a gear sliding sleeve is connected with the backrest stay bar in a rotating mode, and the gear sliding sleeve is arranged on the push rod assembly in a sliding mode in a sleeved mode.
The invention has the beneficial effects that: when the foldable trolley is folded, the seat plate and the armrest assembly are unlocked through the first locking mechanism, then the armrest assembly is folded towards the push rod assembly, at the moment, the locking of the armrest assembly and the unlocking seat is released, then the unlocking piece releases the locking of the locking piece through rotating the unlocking seat of the second locking mechanism, so that the locking between the push rod assembly and the front support assembly is released, the push rod assembly can be folded towards the front support assembly, the folding of the whole trolley can be completed through the linkage effect of the first locking mechanism and the second locking mechanism, the folding is convenient, the volume is small after the folding, the carrying and the traveling are convenient, and the use experience of a user is improved.
Drawings
Fig. 1 is a schematic perspective view of a foldable cart according to an embodiment of the invention;
FIG. 2 is a side view of a collapsible cart according to an embodiment of the invention;
FIG. 3 is a schematic view of a handrail assembly according to an embodiment of the present invention;
FIG. 4 is a schematic view illustrating an assembled structure of the first locking mechanism, the armrest assembly and the seat plate according to an embodiment of the present invention;
FIG. 5 is a schematic view showing an assembled structure of a locking tab and a front bracket assembly of a second locking mechanism according to an embodiment of the present invention;
FIG. 6 is a schematic diagram illustrating an assembly structure of an unlocking seat and a push rod assembly of a second locking mechanism according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of an unlocking seat according to an embodiment of the invention;
FIG. 8 is a schematic view of an unlocking seat according to an embodiment of the present invention, showing a spring seat and a spring;
FIG. 9 is a schematic view showing a folding process of a foldable cart according to an embodiment of the present invention;
FIG. 10 is a schematic view of a foldable stroller according to an embodiment of the present invention after folding;
fig. 11 is a schematic perspective view of a foldable cart according to a second embodiment of the invention;
fig. 12 is a schematic view illustrating a state of the foldable cart in a folding process according to the second embodiment of the present invention;
fig. 13 is a schematic view of a foldable cart according to a second embodiment of the invention after folding.
In the figure:
1. a push rod assembly; 2. a front bracket assembly; 3. a rear bracket assembly; 4. a seat plate; 5. a handrail assembly; 51. armrests pole setting; 52. a cross bar; 53. a clamping block; 54. an armrest; 6. a first locking mechanism; 61. a sliding sleeve; 62. unlocking the block; 621. a hook part; 622. a wrench; 7. a second locking mechanism; 71. a locking piece; 711. an open slot; 72. unlocking the seat; 721. a locking member; 722. a spring seat; 723. a spring; 724. a handle; 725. a limit part; 8. a connecting rod; 9. a front wheel assembly; 10. a rear wheel assembly; 20. a backrest assembly; 201. a backrest; 202. a back support rod; 203. a gear sliding sleeve.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
Example 1
The present embodiment provides a foldable cart, as shown in fig. 1 and 2, which includes a push rod assembly 1, a front bracket assembly 2, a rear bracket assembly 3, a seat plate 4, an armrest assembly 5, a first locking mechanism 6, a second locking mechanism 7, a connecting rod 8, a front wheel assembly 9, and a rear wheel assembly 10, wherein:
the push rod assembly 1 is of a telescopic structure, and the push rod assembly 1 is contracted when the foldable push rod is not used. The front bracket component 2 and the rear bracket component 3 are both rotationally connected with the push rod component 1, and in particular, the front bracket component 2 is rotationally connected with the lower end of the push rod component 1, and the rotational connection point of the rear bracket component 3 and the push rod component 1 is higher than the rotational connection point of the front bracket component 2 and the push rod component 1. The front wheel assembly 9 is rotatably connected to the front bracket assembly 2, and the rear wheel assembly 10 is rotatably connected to the rear bracket assembly 3. The two ends of the connecting rod 8 are respectively connected with the front bracket component 2 and the rear bracket component 3 in a rotating way.
One end of the seat board 4 is rotatably connected to the push rod assembly 1, and the other end is connected to the first locking mechanism 6 and can be lapped on the armrest assembly 5. The armrest assembly 5 is rotatably connected to the front end of the push rod assembly 1, and the armrest assembly 5 can be rotated and folded in the direction of the push rod assembly 1.
In this embodiment, referring to fig. 3, the armrest assembly 5 includes two armrest uprights 51 symmetrically disposed, an armrest 54 mounted at the upper ends of the two armrest uprights 51, a cross bar 52 fixedly connected between the two armrest uprights 51, and two clamping blocks 53 disposed below the cross bar 52, wherein each clamping block 53 is fixedly connected to one armrest upright 51. The lower end of the armrest upright 51 is rotatably connected to the push rod assembly 1.
Fig. 4 is a schematic diagram of an assembly structure of the first locking mechanism 6, the armrest assembly 5 and the seat plate 4 according to the present embodiment, in order to facilitate the viewing, the armrest upright 51 on one side of the armrest assembly 5 is hidden in fig. 4, and referring to fig. 4, the first locking mechanism 6 includes a sliding sleeve 61 and an unlocking block 62, wherein through holes (not shown) are formed at two ends of the sliding sleeve 61, and the sliding sleeve 61 is sleeved on the two armrest uprights 51 through the through holes and can slide relative to the armrest upright 51. The sliding sleeve 61, the unlocking block 62 and the seat plate 4 are coaxially pin-connected, and the unlocking block 62 can rotate around pin-connected shafts of the three.
The unlocking block 62 includes a hook 621 and a wrench 622, the hook 621 can be clamped on the cross bar 52 of the armrest assembly 5, and the wrench 622 can drive the unlocking block 62 to rotate around the pin joint between the sliding sleeve 61, the unlocking block 62 and the seat board 4. Pulling the wrench 622 can drive the unlocking block 62 to be clamped on the cross bar 52 or to be separated from the cross bar 52.
In this embodiment, a spring (not shown) may be further disposed between the unlocking block 62 and the sliding sleeve 61, and the spring is in a compressed state during assembly, so as to ensure that the hook 621 is completely engaged with the cross bar 52, and not separated from the cross bar 52 when the cart is used.
In this embodiment, the seat board 4 and the armrest assembly 5 can be locked by the first locking mechanism 6, specifically, when the sliding sleeve 61 slides to the lower end of the armrest assembly 5, the hook portion 621 of the unlocking block 62 is clamped on the cross bar 52, and at this time, the positions of the unlocking block 62, the sliding sleeve 61 and the seat board 4 are all fixed, so that the whole foldable cart is in a fully unfolded state. When the spanner 622 is pulled so that the hook 621 is disengaged from the cross bar 52, the slide 61 can slide on the armrest upright 51 and can rotate the armrest upright 51 toward the push rod assembly 1.
In this embodiment, the second locking mechanism 7 includes locking pieces 71 and unlocking seats 72, wherein the locking pieces 71 are fixedly disposed at the front end of the front bracket assembly 2, and referring to fig. 5, the locking pieces 71 are two and symmetrically fixed on the front bracket assembly 2, and an open slot 711 is disposed on the locking pieces 71 and is used for matching with a locking piece 721 of the unlocking seat 72 to lock the locking pieces 71 and the unlocking seat 72, thereby locking the front bracket assembly 2 and the push rod assembly 1.
As shown in fig. 6, the unlocking seat 72 is rotatably connected to the push rod assembly 1, and referring to fig. 7, a locking member 721 is provided on the unlocking seat 72, and the locking member 721 can be locked in the opening groove 711 of the locking piece 71. In this embodiment, the locking member 721 is preferably a pin shaft, and the pin shaft is disposed through the unlocking seat 72, and two ends of the pin shaft are disposed through the unlocking seat 72. When the unlocking seat 72 rotates in a direction away from the push rod assembly 1, the pin shaft is clamped in the opening groove 711, so that the unlocking seat 72 and the locking piece 71 are locked. When the unlocking seat 72 rotates in the direction of the push rod assembly 1, the pin shaft is separated from the opening groove 711, so that the unlocking seat 72 and the locking piece 71 are unlocked.
Preferably, referring to fig. 8, the unlocking seat 72 of the present embodiment is provided with a cavity, a spring seat 722 is provided in the cavity, a spring 723 is provided between the spring seat 722 and the cavity, and the pin shaft is fixedly disposed on the spring seat 722 and passes through the unlocking seat 72. Through setting up spring holder 722 and spring 723, after the extreme position of round pin axle joint at open slot 711, can cushion the effort of open slot 711 to the round pin axle through spring 723, and then avoid the round pin axle damage. The spring 723 of the embodiment is always in a compressed state, so that force can be applied to the pin shaft when the pin shaft is clamped in the open groove 711, the pin shaft is prevented from being separated from the open groove 711, and the safety of the cart is improved.
In this embodiment, the unlocking seat 72 further includes a handle 724, and the handle 724 is used to drive the unlocking seat 72 to rotate relative to the push rod assembly 1. And after the whole foldable cart is folded, a user can carry the folded cart through the handle 724, so that the user can go out conveniently.
As shown in fig. 7, the unlocking seat 72 is provided with a limiting portion 725, and when the entire cart is unfolded, that is, when the first locking mechanism 6 locks the seat plate 4 and the armrest assembly 5, the limiting portion 725 can abut against the clamping block 53 of the armrest assembly 5, so that the armrest assembly 5 and the unlocking seat 72 are mutually locked. By the abutment of the stopper 725 and the locking block 53, unlocking between the unlocking seat 72 and the locking piece 71 due to misoperation can be avoided, so that the unlocking seat 72 cannot be directly unlocked, and safety is improved.
In the above foldable cart of the present embodiment, in a use state, that is, a fully unfolded state (shown in fig. 2), at this time, the hook portion 621 of the unlocking block 62 of the first locking mechanism 6 is clamped on the cross bar 52 of the armrest assembly 5, the pin shaft of the unlocking seat 72 of the second locking mechanism 7 is clamped in the opening slot 711 of the locking plate 71, and meanwhile, the limit portion 725 on the unlocking seat 72 abuts against the clamping block 53 of the armrest assembly 5, so that the complete unfolding of the whole cart is realized.
When the folding and straightening process is required, the push rod assembly 1 is first contracted, then the wrench 622 is turned to enable the hook 621 of the unlocking block 62 to be separated from the cross rod 52 of the armrest assembly 5, then the armrest assembly 5 is folded towards the push rod assembly 1, at this time, the sliding sleeve 61 slides towards one end of the armrest 54 of the armrest assembly 5, and finally the seat board 4 is folded along with the armrest assembly 5 towards the push rod assembly 1 (shown in fig. 9).
Along with the folding of the armrest assembly 5 towards the push rod assembly 1, in the process, the clamping block 53 of the armrest assembly 5 is released from abutting with the limit part 725 on the unlocking seat 72, at this time, the handle 724 drives the pin shaft of the unlocking seat 72 to be separated from the opening groove 711 of the locking piece 71 by rotating the handle 724, the locking between the unlocking seat 72 and the locking piece 71 is released, and then the front bracket assembly 2 or the push rod assembly 1 is rotated, so that the front bracket assembly 2 and the push rod assembly 1 are folded towards the rear bracket assembly 3, and finally the folding of the whole cart is completed (shown in fig. 10).
Example two
The difference between this embodiment and the first embodiment is that the foldable wagon of this embodiment is further provided with a backrest assembly 20. Specifically, the structure of the foldable cart in this embodiment may refer to fig. 11-13, where fig. 11 is a schematic perspective view of the foldable cart in the second embodiment of the present invention, fig. 12 is a schematic view of the foldable cart in the folding process in the second embodiment of the present invention, and fig. 13 is a schematic view of the foldable cart in the folding process in the second embodiment of the present invention.
The backrest assembly 20 of this embodiment includes a backrest 201 with a bottom rotatably connected to the seat plate 4, a backrest stay 202 rotatably connected to a middle portion of the backrest 201, and a gear sliding sleeve 203 rotatably connected to the backrest stay 202, where the gear sliding sleeve 203 is slidably sleeved on the push rod assembly 1. The backrest assembly 20 of the present embodiment can realize the angle adjustment of the backrest assembly 20 (for example, can set an adjustment gear to correspond to the angles of different backrest assemblies 20) by sliding the gear sliding sleeve 203 relative to the push rod assembly 1, thereby improving the riding comfort of infants. It should be noted that, a locking mechanism (not shown) is disposed at the position of the shift position sliding sleeve 203, so as to ensure that the backrest assembly 20 is at the shift position angle when the shift position sliding sleeve 203 slides to different shift positions. The structure of the locking mechanism is the same as that in the prior art, and the locking of the position of the shift position sliding sleeve 203 can be satisfied, and therefore, the structure and principle thereof will not be described.
The other structures of the foldable cart in this embodiment are the same as those in the first embodiment, and will not be described here again.
In this embodiment, when the first locking mechanism 6 releases the locking between the armrest upright 51 and the seat board 4, and the armrest assembly 5 is folded toward the push rod assembly 1, the seat board 4 can drive the backrest assembly 20 to fold toward the push rod assembly 1 together, so that the whole vehicle is folded to have smaller volume. The principle and structure of the second locking mechanism 7 of the foldable cart in this embodiment are the same as those of the first embodiment, and will not be described again.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the invention. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.

Claims (8)

1. The utility model provides a collapsible shallow, includes push rod assembly (1), respectively with push rod assembly (1) rotate fore-stock subassembly (2) and back support subassembly (3) of being connected, push rod assembly (1) still rotates and is connected with bedplate (4) and handrail subassembly (5), its characterized in that still includes:
a first locking mechanism (6) sliding on the armrest assembly (5) for locking the seat plate (4) and the armrest assembly (5);
the second locking mechanism (7) comprises a locking piece (71) and an unlocking seat (72), wherein the locking piece (71) is fixedly connected with the front bracket assembly (2), the unlocking seat (72) is rotatably connected with the push rod assembly (1), a locking piece (721) is arranged on the unlocking seat (72), and the locking piece (721) can be locked on the locking piece (71);
when the first locking mechanism (6) locks the seat plate (4) and the armrest assembly (5), the armrest assembly (5) and the unlocking seat (72) are mutually locked;
the first locking mechanism (6) comprises a sliding sleeve (61) and an unlocking block (62), the sliding sleeve (61) slides on the armrest assembly (5), the sliding sleeve (61), the unlocking block (62) and the seat plate (4) are coaxially pin-connected, and the unlocking block (62) can rotate around a pin joint with the seat plate (4) and is clamped on the armrest assembly (5);
the front support assembly (2) and the rear support assembly (3) are respectively connected to two ends of the connecting rod (8) in a rotating mode.
2. The foldable cart according to claim 1, wherein the armrest assembly (5) comprises symmetrically arranged armrest uprights (51), and the two ends of the sliding sleeve (61) are respectively and slidably sleeved on the two armrest uprights (51).
3. The foldable cart as claimed in claim 2, wherein the armrest assembly (5) further comprises a cross bar (52) fixedly connected between the two armrest uprights (51), the unlocking block (62) is provided with a hook portion (621), and the hook portion (621) can be clamped at the cross bar (52).
4. The foldable cart as claimed in claim 2, wherein the armrest assembly (5) further comprises a clamping block (53) fixedly connected to the armrest upright (51), the unlocking seat (72) is provided with a limiting portion (725), and the limiting portion (725) can be abutted against the clamping block (53).
5. The foldable cart as claimed in claim 1, wherein the locking piece (71) is provided with an opening slot (711), the locking piece (721) is a pin shaft arranged on the unlocking seat (72), and the pin shaft can be clamped in the opening slot (711).
6. The foldable cart as claimed in claim 5, wherein the unlocking seat (72) is provided with a cavity, a spring seat (722) is arranged in the cavity, a spring (723) is arranged between the spring seat (722) and the cavity, and the pin shaft is fixedly arranged on the spring seat (722) in a penetrating manner and is arranged through the unlocking seat (72).
7. The foldable cart as claimed in claim 1, wherein the unlocking seat (72) further comprises a handle (724), the handle (724) being adapted to rotate the unlocking seat (72) relative to the push rod assembly (1).
8. The foldable cart as claimed in claim 1, further comprising a backrest assembly (20), wherein the backrest assembly (20) comprises a backrest (201) with a bottom rotatably connected with the seat plate (4), a backrest stay (202) is rotatably connected to a middle part of the backrest (201), a gear sliding sleeve (203) is rotatably connected to the backrest stay (202), and the gear sliding sleeve (203) is slidably sleeved on the push rod assembly (1).
CN201811574500.0A 2018-12-21 2018-12-21 Foldable trolley Active CN109466614B (en)

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CN109466614B true CN109466614B (en) 2024-04-16

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CN111619645A (en) * 2019-09-17 2020-09-04 彭水毅 Children's barrow
CN112678060A (en) * 2019-10-18 2021-04-20 杜浩明 Foldable trolley for children
CN111994161B (en) * 2020-07-31 2022-06-28 温岭市三木电动玩具有限公司 Folding cart

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US4616844A (en) * 1983-07-15 1986-10-14 Aprica Kassai Kabushikikaisha Mechanism for locking opened state of baby carriage
US4529219A (en) * 1983-12-09 1985-07-16 Louis Shamie Foldable baby carriage with security lock
US4819958A (en) * 1986-10-29 1989-04-11 Peg Perego Pines Spa Child's folding pushchair with safety device for locking the pushchair in the opened position
CN101337556A (en) * 2007-07-03 2009-01-07 哥瑞考儿童产品公司 Baby carriage
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CN209382061U (en) * 2018-12-21 2019-09-13 江苏小小恐龙儿童用品集团有限公司 A kind of collapsible stroller

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