CN209719691U - A kind of locking mechanism and the folding children's cart with the locking mechanism - Google Patents

A kind of locking mechanism and the folding children's cart with the locking mechanism Download PDF

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Publication number
CN209719691U
CN209719691U CN201822166857.7U CN201822166857U CN209719691U CN 209719691 U CN209719691 U CN 209719691U CN 201822166857 U CN201822166857 U CN 201822166857U CN 209719691 U CN209719691 U CN 209719691U
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China
Prior art keywords
component
lock pin
locking mechanism
locked groove
latch gear
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CN201822166857.7U
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Chinese (zh)
Inventor
马福生
石平中
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Goodbaby Child Products Co Ltd
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Goodbaby Child Products Co Ltd
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Priority to CN201822166857.7U priority Critical patent/CN209719691U/en
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Abstract

The utility model discloses a kind of locking mechanism and the folding children's cart with the locking mechanism, including the latch gear being movably disposed on the first component, the locking piece for being arranged on second component and capable of pushing latch gear movement, the locked groove being provided in third member, the first component is mutually rotatablely connected with second component;When opposite opening between the first component and second component, locking piece is separated with latch gear, and latch gear is separated with locked groove, when locking mechanism is in the unlocked state, is released between the first component and third member;When drawing close relatively between the first component and second component, locking piece promotion latch gear is moved to be connected with locked groove, and locking mechanism is in the lock state, and is locked between the first component and third member.The utility model, which can be realized, will enable wheel universal rotational by wheel alignment, and while vehicle frame is opened while vehicle frame folding, simplify folding operation step, folding can be rapidly completed.

Description

A kind of locking mechanism and the folding children's cart with the locking mechanism
Technical field
The utility model relates to a kind of locking mechanism and the folding children's cart with the locking mechanism.
Background technique
Folding children's cart in the prior art, the vehicle for generally comprising folding vehicle frame, being mounted below the vehicle frame Wheel, the locking device that the vehicle frame can be locked in opening state.It turns in order to facilitate when carrying out, folding children's cart, folding The front-wheel of folded children trolley is generally designed that (then front and back wheel can be universal for cart capable of reversing to be capable of the structure of universal rotational Rotation), it may be assumed that wheel is mounted on wheel connector, and wheel connector and vehicle frame in shaft by being pivotally connected.However in vehicle frame After folding, the universal rotational of front-wheel can hamper the carrying or storage of cart, therefore, it will usually front-wheel locking is added on vehicle frame The pivot of wheel connector can be limited after vehicle frame folding, keep wheel connector and vehicle frame position relatively fixed by mechanism.Mesh Before, most of wheel locking mechanisms require individually to be gone to stir locking and unlocking with hand on the market, can be in vehicle frame without one kind Realized during folding automatic locking and during vehicle frame is opened automatic unlocking wheel locking mechanism.
Utility model content
To solve the above-mentioned problems, the purpose of this utility model is to provide a kind of locking mechanism and with the locking mechanism Folding children's cart.
In order to reach the goals above, the technical solution adopted in the utility model is: a kind of locking mechanism, including movably The latch gear that is arranged on the first component, is opened the locking piece for being arranged on second component and latch gear capable of being pushed mobile The locked groove being located in third member, latch gear are separatably connected with locked groove, can between the first component and second component It mutually rotates and opposite open with drawing close is connected;
When opposite opening between the first component and second component, locking piece is separated with latch gear, and latch gear It is separated with locked groove, locking mechanism is in the unlocked state, and the relative motion relation between the first component and third member is released; When drawing close relatively between the first component and second component, locking piece promotion latch gear is moved to be connected with locked groove, is locked Mechanism is in the lock state, and the relative motion relation between the first component and third member is locked.
Further, latch gear includes being movably disposed on the first component and being separatably connected with locked groove First lock pin can relatively movably connect with the first lock pin and the first lock pin can be pushed to be allowed to the be connected with locked groove second lock Pin makes it to the first mobile elastic component of the direction far from locked groove the first lock pin applied force, makes it to the second lock pin applied force Second elastic component mobile to the direction far from locked groove, when drawing close relatively between the first component and second component, locking piece is pushed away Dynamic second lock pin is mobile.
Further, the one end of the second lock pin separatably offsets with locking piece, the other end energy of the second lock pin Enough to be telescopically inserted into the first lock pin from the one end of the first lock pin, the other end of the first lock pin is separatably connected with locked groove It connects.
Further, the first waist hole is offered on the first lock pin, the first rivet is fixedly installed on the first component, this One rivet can be relatively movably threaded through in the first waist hole, and the first elastic component is arranged between the first rivet and the second lock pin.
Further, the one end of the second lock pin has a flange, the setting of the second elastic component flange and the first lock pin it Between.
Further, the second waist hole is offered on the first lock pin, and the second rivet is fixedly connected on the second lock pin, it should Second rivet can be relatively movably threaded through in the second waist hole, and locking mechanism is from unlocked state to the process of lock state transition In, after the second lock pin drives the second rivet to be moved to the one end of the second waist hole, the second lock pin pushes first by the second rivet Lock pin is allowed to be connected with locked groove.
Further, third member is pivotally connected with the first component by shaft.
Further, the first component and second component are rod piece, and third member is located at the lower section of the first component, and Wheel is connected on three components.
The utility model additionally provides another technical solution: a kind of folding children's cart with above-mentioned locking mechanism, Including the vehicle frame that can be folded and open, vehicle frame includes the first component, second component and third member, when vehicle frame is in open shape It is opposite between the first component and second component to open when state, when vehicle frame is in folded state, the first component and second component it Between opposite draw close.
Further, folding children's cart has front seats mechanism and back seat mechanism.
Due to the adoption of the above technical scheme, a kind of locking mechanism of the utility model and the folding children's with the locking mechanism Cart can be realized and lock locking mechanism while vehicle frame folding, by wheel alignment, and will lock while vehicle frame is opened Determine mechanism unlock, enables wheel universal rotational, to simplify folding operation step, folding can be rapidly completed.
Detailed description of the invention
Attached drawing 1 is the perspective structure schematic diagram of locking mechanism when unlocked in the utility model;
Attached drawing 2 is A partial structural diagram in attached drawing 1;
Attached drawing 3 is the partial front elevation view of attached drawing 1;
Attached drawing 4 is the face the B-B cross-sectional view of attached drawing 3, wherein to understand structure representation, part is omitted;
Attached drawing 5 is perspective structure schematic diagram of the locking mechanism in lock state in the utility model;
Attached drawing 6 is C partial structural diagram in attached drawing 5;
Attached drawing 7 is the partial front elevation view of attached drawing 5;
Attached drawing 8 is the face the D-D cross-sectional view of attached drawing 7, wherein to understand structure representation, part is omitted;
Attached drawing 9 is the side structure schematic view of folding children's cart in the open mode in the utility model;
Attached drawing 10 is the schematic perspective view of folding children's cart in the open mode in the utility model;
Attached drawing 11 is side structure schematic view of the folding children's cart in folding process in the utility model;
Attached drawing 12 is schematic perspective view of the folding children's cart in folding process in the utility model;
Attached drawing 13 is side structure schematic view of the folding children's cart in further fold in the utility model;
Attached drawing 14 is schematic perspective view of the folding children's cart in further fold in the utility model;
Attached drawing 15 is side structure schematic view of the folding children's cart in folded state in the utility model;
Attached drawing 16 is schematic perspective view of the folding children's cart in folded state in the utility model.
Figure label are as follows:
1, upper push-rod;2, lower push-rod;3, lower upright bar;4, after-poppet;6, back link;6, sliding sleeve;7, back support bar;8, preceding to help Hand;9, seat bar;11, lower link;12, fore-stock;13, front rod;14, front-wheel;15, rear-wheel;16, back seat plate;17, back seat pocket; 18, wheel connector;
101, the first lock pin;102, the second lock pin;103, the first elastic component;104, the second elastic component;105, locking piece; 106, locked groove;107, the first waist hole;108, the second waist hole;109, the first rivet;110, the second rivet.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that advantages of the present invention and spy Sign can be easier to be readily appreciated by one skilled in the art.
Structural schematic diagram from attached drawing 1 to attached drawing 16 can be seen that the locking mechanism in the present embodiment, including movably The latch gear that is arranged on the first component, the locking piece 105 for being arranged on second component and latch gear capable of being pushed mobile, The locked groove 106 being provided in third member, latch gear are separatably connected with locked groove 106.The first component and second component Between can mutually rotate and opposite open with drawing close is connected, third member by shaft pivotally with first component phase Connection.
When opposite opening between the first component and second component, locking piece 105 is separated with latch gear, and lock pin machine Structure is separated with locked groove, and locking mechanism is in the unlocked state, and the relative motion relation between the first component and third member is released It puts;When drawing close relatively between the first component and second component, locking piece 105 pushes latch gear to be moved to and 106 phase of locked groove Connection, locking mechanism are in the lock state, and the relative motion relation between the first component and third member is locked.
Because the relative rotation between the first component and second component has certain stroke, and due to overall construction design Limitation, the stroke of single lock pin is limited, cannot match with the rotational travel of second component, therefore, latch gear be designed as Flowering structure: latch gear includes the first lock for being movably disposed on the first component and being separatably connected with locked groove 106 Pin 101 can relatively movably connect with the first lock pin 101 and the first lock pin 101 can be pushed to be allowed to be connected with locked groove 106 Second lock pin 102 makes it to the first mobile elastic component 103 of the direction far from locked groove 106, right first lock pin, 101 applied force The second elastic component 104 that second lock pin, 102 applied force keeps it mobile to the direction far from locked groove 106, when the first component and second When drawing close relatively between component, locking piece 105 pushes the second lock pin 102 mobile.The first elastic component 103 in the present embodiment and Two elastic components 104 are compressed spring.
Specifically, the one end of the second lock pin 102 separatably offsets with locking piece 105, the other end of the second lock pin 102 Portion can be telescopically inserted into the first lock pin 101 from the one end of the first lock pin 101, the other end of the first lock pin 101 and lock Slot 106 is separatably connected.
Specifically ground structure are as follows: offer the first waist hole 107 on the first lock pin 101, be fixedly installed on the first component First rivet 109, first rivet 109 can be relatively movably threaded through in the first waist hole 107, and the setting of the first elastic component 103 exists Between first rivet 109 and the second lock pin 102, the both ends of the first elastic component 103 respectively with the first rivet 109 and the second lock pin 102(or the second rivet 110 that will be described below) it offsets.The one end of second lock pin 102 has flange 111, the Two elastic components 104 be arranged between flange 111 and the first lock pin 101, the both ends of the second elastic component 104 respectively with flange 111 Lower surface and the upper surface of the first lock pin 101 offset.
The second waist hole 108 is offered on first lock pin 101, and the second rivet 110 is fixedly connected on the second lock pin 102, Second rivet 110 can be relatively movably threaded through in the second waist hole 108, and locking mechanism is from unlocked state to lock state transition During, after the second lock pin 102 drives the second rivet 110 to be moved to the one end of the second waist hole 108, the second lock pin 102 is logical Crossing the second rivet 110 pushes the first lock pin 101 to be allowed to be connected with locked groove 106.
In a kind of highly preferred embodiment, the first component and second component are rod piece, and third member is located at the The lower section of one component, and wheel is connected in third member.Specifically, the lower part of the first component and the front phase of second component turn Dynamic connection.In the present embodiment, the lower part of the first component has the first connector 12a, and latch gear is arranged in first connector 12a On, the front of second component has the second connector 13b, and locking piece 105 is arranged on the second connector 13b.
Locking mechanism working principle:
When locking, under the drive or manual operation of other component, second component is rotated to be drawn close to the first component, and second Part drives locking piece 105, is pressed in locking piece 105 on second lock pin 102 and the second lock pin 102 is pushed to overcome the second elastic component 104 power and move down, the second lock pin 102 drives the second rivet 110 the second of the first lock pin 101 while moving down It is moved down in waist hole 108, when the second rivet 110 is moved to the bottom of the second waist hole 108, locking piece 105 is continued to press on Second lock pin 102 moves down, and the second lock pin 102 pushes the first lock pin 101 to overcome the first elastic component by the second rivet 110 103 power and move down, play the role of guiding between the first waist hole 107 and the first rivet 109 at this time, work as third member Relative thereto turn to locked groove 106 it is corresponding with the position of the first lock pin 101 when, the first lock pin 101 be inserted into locked groove 106, To complete to lock.When unlock, under the drive or manual operation of other component, second component is rotated far from the first component, the Two components drive locking piece 105 to be detached from the second lock pin 102, the pressure of the second lock pin 102 are lost, in 103 He of the first elastic component Under the action of second elastic component 104, the first lock pin 101 and the second lock pin 102 reset, and the first lock pin 101 is detached from locked groove 106, from And unlock is completed, third member can pivot.
The present embodiment additionally provides another technical solution: with reference to attached drawing 9 to attached drawing 16, a kind of folding with locking mechanism Folded children trolley, including the vehicle frame that can be folded and open, vehicle frame includes the first component, second component and third member, works as vehicle Frame is in the open state, opposite between the first component and second component to open, when vehicle frame is in folded state, the first component It is opposite between second component to draw close.I.e. vehicle frame folding when drive locking mechanism locking, orient wheel, vehicle frame open when drive Locking mechanism unlock, enables wheel universal rotational.
Specifically, the first component is fore-stock 12, and second component is front rod 13, and third member is wheel connector 18, Above-mentioned wheel is front-wheel 14.
Folding children's cart in the present embodiment is two-seater carriage for children, has front seats mechanism and back seat mechanism.
A kind of body frame structure for automotive specifically is given in the present embodiment, and there is the opposite side for being symmetrically disposed in the left and right sides Vehicle frame, each side vehicle frame include other than above-mentioned fore-stock 12, front rod 13, further include upper push-rod 1, lower push-rod 2, lower upright bar 3, after-poppet 4, back link 5, sliding sleeve 6, preceding handrail 8, back support bar 7, connecting rod 9, seat bar 10, lower link 11.
The top of lower push-rod 2 rotates with upper push-rod 1 and connect.The top of lower upright bar 3 and the lower part of upper push-rod 1 rotate company It connects, specifically, the junction of lower push-rod 2 and upper push-rod 1 is located at the top of lower upright bar 3 and the junction of upper push-rod 1.After-poppet 4 Top rotate and connect with the lower part of lower push-rod 2, after-poppet 4 rotates with lower upright bar 3 and connect, and rear-wheel 15 is connected to after-poppet 4 bottom, specifically, the junction of lower upright bar 3 and after-poppet 4 are located at back link 5(and are detailed description below) and after-poppet 4 company Connect between place and lower push-rod 2 and the junction of after-poppet 4, and the junction of lower upright bar 3 and after-poppet 4 be located at lower upright bar 3 with it is upper The junction of push rod 1 and lower upright bar 3 and sliding sleeve 6(are detailed description below) junction between.The top of fore-stock 12 and rear branch The top of frame 4 rotates connection, and front-wheel 14 is mounted on the bottom of wheel connector 18, before wheel connector 18 is pivotally connected to The junction of the bottom of bracket 12, the top bending forward of above-mentioned after-poppet 4, fore-stock 12 and after-poppet 4 is located at lower push-rod 2 With the front of 4 junction of after-poppet.The front of front rod 13 rotates with fore-stock 12 and connect.The front of back link 5 with before connect The rear portion of bar 13 rotates connection, and the rear portion of back link 5 rotates with after-poppet 4 to be connect.Sliding sleeve 6 can be along 5 length side of back link To being slidably connected on back link 5, and the lower part of lower upright bar 3 rotates with the sliding sleeve 6 and connect, and specifically, the setting of sliding sleeve 6 exists Between the junction and back link 5 of back link 5 and front rod 13 and the junction of after-poppet 4.The lower part of back support bar 7 and fore-stock 12 rotate connection.The rear portion of preceding handrail 8 rotates and connect with the front of back support bar 7, fore-stock 12 respectively, in the present embodiment, Back support bar 7, preceding handrail 8, fore-stock 12 are mutually transferred by same shaft.The top of lower link 11 and back support bar 7 can be rotated and can Movably it is connected, the lower part of lower link 11 rotates with front rod 13 to be connect.Specifically, the company of lower link 11 and back support bar 7 Connect the lower section that place is located at the junction of fore-stock 12 and back support bar 7;The junction of lower link 11 and front rod 13 is located at back link 5 Between the junction and front rod 13 and the junction of fore-stock 12 of front rod 13.The rear portion of seat bar 10 turns with 7 phase of back support bar Dynamic connection.Specifically, the junction of seat bar 10 and back support bar 7 is located at the lower section of the junction of back support bar 7 and fore-stock 12.Connection One end of bar 9 rotates with seat bar 10 and connect, and the other end rotates with fore-stock 12 and connect.Specifically, back support bar 7 and preceding branch The junction of frame 12 is located between after-poppet 4 and the junction and connecting rod 9 and the junction of fore-stock 12 of fore-stock 12, connection The junction of bar 9 and fore-stock 12 is located at the junction of back support bar 7 and fore-stock 12 and the connection of front rod 13 and fore-stock 12 Between.
Above-mentioned upper push-rod 1, lower push-rod 2, lower upright bar 3, after-poppet 4 constitute four-bar mechanism.Lower upright bar 3, after-poppet 4, Back link 5, sliding sleeve 6 constitute slider-crank mechanism.After-poppet 4, back link 5, front rod 13, fore-stock 12 constitute double leval jib machine Structure.Front rod 13, fore-stock 12, lower link 11, back support bar 7 constitute four-bar mechanism.It is back support bar 7, seat bar 10, connecting rod 9, preceding Bracket 12 constitutes four-bar mechanism.
Back seat plate 16 is connected on after-poppet 4.It is further preferable that the rear of upper push-rod 1 and lower push-rod 2 is provided with back seat pocket 17, which is located at the back upper place of back seat plate 16.Specifically, back seat plate 16 is connected to the top of after-poppet 4, and is arranged Between two side vehicle frames.
Vehicle frame folding working principle:
Cart while forward downward rotates upper push-rod 1, is pressed downward when folding, makes the rotated down backward of lower push-rod 2, The four-bar mechanism movement being made of upper push-rod 1, lower push-rod 2, lower upright bar 3, after-poppet 4, push rod 1, lower push-rod 2, lower upright bar 3 It is drawn close to after-poppet 4, and then drives and moved by the slider-crank mechanism that lower upright bar 3, after-poppet 4, back link 5, sliding sleeve 6 are constituted Make, draw close back link 5 to after-poppet 4, and the front of back link 5 is rotated up, to drive by after-poppet 4, back link 5, the four-bar mechanism movement that front rod 13, fore-stock 12 are constituted, front rod 13 and fore-stock 12 connect with after towards after-poppet 4 Bar 5 is drawn close, meanwhile, front rod 13 and fore-stock 12 are also mutually drawn close, and during this, locking mechanism are locked, front-wheel 14 is made Orientation.It is relatively rotated between back support bar 7 and lower link 11, by above-mentioned by after-poppet 4, back link 5, front rod 13, fore-stock 12 four-bar mechanisms constituted drive the double leval jib machine being made of front rod 13, fore-stock 12, lower link 11, back support bar 7 Structure movement folds, back support bar 7(and preceding handrail 8) forward downward rotates and draws close to fore-stock 12, and then drive by back support bar 7, The parallel motion that seat bar 10, connecting rod 9, fore-stock 12 are constituted folds, and 10 forward downward of seat bar is rotated and propped up forward Frame 12 is drawn close.It is completed until vehicle folds.
Locking mechanism of the present invention and folding children's cart with the locking mechanism, can be realized while vehicle frame folding Locking mechanism is locked, locking mechanism is unlocked by wheel alignment, and while vehicle frame is opened, enables universal turn of wheel It is dynamic, to simplify folding operation step, folding can be rapidly completed.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention. All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it It is interior.

Claims (10)

1. a kind of locking mechanism, it is characterised in that: including be movably disposed on the first component latch gear, setting is the On two components and the locking piece (105) that the latch gear can be pushed mobile, the locked groove (106) being provided in third member, The latch gear is separatably connected with the locked groove (106), can be mutual between the first component and second component It rotates and opposite open with drawing close is connected;
When opposite opening between the first component and second component, the locking piece (105) is separated with latch gear, and The latch gear is separated with locked groove, and the locking mechanism is in the unlocked state, between the first component and third member Relative motion relation be released;When drawing close relatively between the first component and second component, the locking piece (105) is pushed away Pendulum lock pin mechanism is moved to be connected with the locked groove (106), and the locking mechanism is in the lock state, the first component with Relative motion relation between third member is locked.
2. locking mechanism according to claim 1, it is characterised in that: the latch gear includes being movably disposed at The first lock pin (101) for being separatably connected on the first component and with the locked groove (106), with first lock pin (101) It can relatively movably connect and first lock pin (101) can be pushed to be allowed to the be connected with the locked groove (106) second lock Pin (102), the first elasticity for keeping it mobile to the direction far from the locked groove (106) the first lock pin (101) applied force Part (103), the second elasticity for keeping it mobile to the direction far from the locked groove (106) the second lock pin (102) applied force Part (104), when drawing close relatively between the first component and second component, the locking piece (105) pushes second lock It is mobile to sell (102).
3. locking mechanism according to claim 2, it is characterised in that: the one end of second lock pin (102) and locking Part (105) separatably offsets, and the other end of the second lock pin (102) can be telescopically from the one of first lock pin (101) End is inserted into the first lock pin (101), the other end of first lock pin (101) and the locked groove (106) separatably phase Connection.
4. locking mechanism according to claim 2, it is characterised in that: offer the first waist on first lock pin (101) Hole (107) is fixedly installed the first rivet (109) on the first component, which can relatively movably wear In first waist hole (107), first elastic component (103) is arranged in first rivet (109) and the second lock pin (102) between.
5. locking mechanism according to claim 2, it is characterised in that: the one end of second lock pin (102) has convex Edge (111), second elastic component (104) are arranged between the flange (111) and the first lock pin (101).
6. locking mechanism according to claim 2, it is characterised in that: offer second on first lock pin (101) Waist hole (108) is fixedly connected with the second rivet (110) on second lock pin (102), which opposite can move It is threaded through in second waist hole (108) dynamicly, the locking mechanism is from unlocked state to during lock state transition, institute It states the second lock pin (102) to drive after the second rivet (110) be moved to the one end of the second waist hole (108), the second lock pin (102) is logical Crossing the second rivet (110) pushes the first lock pin (101) to be allowed to be connected with locked groove (106).
7. locking mechanism according to claim 1, it is characterised in that: the third member is by shaft pivotally with the One component is connected.
8. locking mechanism according to claim 7, it is characterised in that: the first component and second component are rod piece, The third member is located at the lower section of the first component, and wheel is connected in third member.
9. a kind of folding children's cart with locking mechanism described in claim any one of 1-8, it is characterised in that: including The vehicle frame that can be folded and open, the vehicle frame includes the first component, second component and third member, at the vehicle frame It is opposite between the first component and second component to open when opening state, it is described when the vehicle frame is in folded state It is opposite between the first component and second component to draw close.
10. folding children's cart according to claim 9, it is characterised in that: the folding children's cart has front seats Mechanism and back seat mechanism.
CN201822166857.7U 2018-12-21 2018-12-21 A kind of locking mechanism and the folding children's cart with the locking mechanism Active CN209719691U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201822166857.7U CN209719691U (en) 2018-12-21 2018-12-21 A kind of locking mechanism and the folding children's cart with the locking mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201822166857.7U CN209719691U (en) 2018-12-21 2018-12-21 A kind of locking mechanism and the folding children's cart with the locking mechanism

Publications (1)

Publication Number Publication Date
CN209719691U true CN209719691U (en) 2019-12-03

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ID=68677561

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201822166857.7U Active CN209719691U (en) 2018-12-21 2018-12-21 A kind of locking mechanism and the folding children's cart with the locking mechanism

Country Status (1)

Country Link
CN (1) CN209719691U (en)

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