CN208682892U - A kind of solution lock linkage device and children trolley - Google Patents
A kind of solution lock linkage device and children trolley Download PDFInfo
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- CN208682892U CN208682892U CN201821077262.8U CN201821077262U CN208682892U CN 208682892 U CN208682892 U CN 208682892U CN 201821077262 U CN201821077262 U CN 201821077262U CN 208682892 U CN208682892 U CN 208682892U
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Abstract
The utility model discloses a kind of solution lock linkage device and children trolleys, solving lock linkage device includes the first rod piece, the second rod piece for rotating or being slidably connected with the first rod piece, with the third rod piece of the second rod piece rotation connection, lock the first locking mechanism of the position of the first rod piece and the second rod piece, lock the second locking mechanism of the position of third rod piece and the second rod piece, first locking mechanism includes the first locking piece of activity setting, third rod piece has first, second and third operating position, when third rod piece is in the first operating position, first locking mechanism and second locking mechanism are in the lock state, after second locking mechanism unlock, third rod piece turns to third rod piece with respect to the second rod piece and is in the second operating position, third rod piece and the first locking piece cooperate, the rotation of third rod piece drives the first locking piece to move, at third rod piece When third operating position, first locking mechanism unlock.The unlock linkage structures are simple, and unlock is easy to operate, are easy to use.
Description
Technical field
The utility model relates to articles for children technical fields, and in particular to a kind of solution lock linkage device and children trolley.
Background technique
Children trolley is that the lesser children's progress outdoor activities of adult's carrying provide a great convenience, when children's trolley pole
When part is more, multiple locking mechanisms can be generally provided with, and when children trolley folds, after needing to unlock multiple locking mechanisms
Children trolley can just be folded.In the prior art, multiple locking mechanisms need manual operation one by one on Among Children cart
It is unlocked, this to unlock inconvenient.It is also equipped with solution lock linkage device on Among Children cart, but structure is complicated, holds
It easily breaks down, to influence the folding operation of children trolley.
Summary of the invention
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of improved solution lock linkage device.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of solution lock linkage device, including the first rod piece, the second rod piece and third rod piece, first rod piece and described the
Two rod pieces rotate connection or first rod piece can be slidably arranged on second rod piece, the third rod piece
It rotates and connect with second rod piece, the solution lock linkage device further includes for locking first rod piece and described second
The first locking mechanism of the relative position of rod piece and relative position for locking the third rod piece and second rod piece
Second locking mechanism, the first locking mechanism include the first locking piece being movably arranged on second rod piece, and described
Three rod pieces have the first, second, and third operating position, when the third rod piece is in the first operating position, first lock
Determine mechanism and the second locking mechanism is in lock state, after second locking mechanism unlock, the third rod piece
Can be rotated relative to second rod piece, until the third rod piece is in the second operating position, the third rod piece with it is described
First locking piece matches, and third rod piece rotation drives first locking piece to move, when the third rod piece is in the
When three operating positions, the first locking mechanism unlock.
Preferably, first locking piece is rotatably arranged on second rod piece, when the first locking machine
When structure is in the lock state, first locking piece is matched with first rod piece, when the first locking mechanism is in solution
When lock status, the cooperation between first locking piece and first rod piece is disengaged.
Further, first rod piece can be slidably arranged in described along the length extending direction of second rod piece
On second rod piece, when the first locking mechanism is in the lock state, first locking piece supports and is located at first rod piece
One end on, when the first locking mechanism is in the unlocked state, first locking piece is far from first rod piece.
Further, position, first locking piece and the institute that first locking piece is matched with the third rod piece
Stating the position that the first rod piece matches, to be located at first locking piece opposite at the rotation connection of second rod piece
Two sides.
Preferably, it is provided with the auxiliary section matched with first locking piece on the third rod piece, when the third
When rod piece is in the second operating position, first locking piece is fastened in the auxiliary section.
Preferably, the second locking mechanism includes the second locking piece, and second locking piece can rotate or slidably
It is arranged on second rod piece, the solution lock linkage device further includes the unlock knob and driving assembly of activity setting, described
Driving assembly is connect with the unlock knob and second locking piece respectively, when operating the unlock knob, by described
Driving assembly drives second locking piece to rotate or slide relative to second rod piece, to make the second locking mechanism solution
Lock.
Further, the unlock knob is arranged on first rod piece, the driving component include the first hauling rope,
First sliding block, the second sliding block and the second hauling rope, the both ends of first hauling rope respectively with the unlock knob and described
The connection of first sliding block, first sliding block can be slidably arranged in described first along the length extending direction of first rod piece
On rod piece, second sliding block can be slidably arranged in second rod piece along the length extending direction of second rod piece
On, the both ends of second hauling rope are connect with second sliding block and second locking piece respectively, when second lock
When determining mechanism and being in the lock state, first sliding block and second sliding block are matched.
Further, it is provided with the first protrusion on first sliding block, is provided with the second protrusion on second sliding block,
When the second locking mechanism is in the lock state, first protrusion and the second protrusion Xiang Kashe.
Further, second locking piece is used to directly lock the opposite position of second rod piece Yu the third rod piece
It sets, alternatively, second locking piece is used to lock the 4th rod piece associated with the third rod piece and second rod piece
Relative position.
The utility model also provides a kind of children trolley, has solution lock linkage device as described in any one of the above embodiments.
Due to the application of the above technical scheme, the utility model has the advantage that this is practical new compared with prior art
The unlock linkage structures of type are simple, only need to be after second locking mechanism unlock, and third rod piece is rotated relative to the second rod piece
First locking mechanism can be made to unlock in the process, so that unlock is easy to operate, be easy to use.
Detailed description of the invention
Attached drawing 1 is one of structural schematic diagram of solution lock linkage device of the utility model (first locking mechanism and the second lock
Determine mechanism and be in lock state)；
Attached drawing 2 be the utility model solution lock linkage device second structural representation (first locking mechanism be in locking
State, second locking mechanism are in unlocked state)；
Attached drawing 3 is third structural representation (first locking mechanism and the second lock of the solution lock linkage device of the utility model
Determine mechanism and be in unlocked state)；
Attached drawing 4 is partial enlarged view at A in attached drawing 3；
Attached drawing 5 is the perspective view of the children trolley of the utility model in the deployed state；
Attached drawing 6 is the side view of the children trolley of the utility model in the deployed state；
Attached drawing 7 is the main view of the children trolley of the utility model in the deployed state；
Attached drawing 8 is perspective view of the children trolley of the utility model in a folding process；
Attached drawing 9 is side view of the children trolley of the utility model in a folding process；
Attached drawing 10 is perspective view of the children trolley of the utility model under a folded state；
Attached drawing 11 is side view of the children trolley of the utility model under a folded state；
Attached drawing 12 is perspective view of the children trolley of the utility model under secondary folding state；
Attached drawing 13 is side view of the children trolley of the utility model under secondary folding state.
Wherein: 11, the first rod piece；12, the second rod piece；13, third rod piece；14, the 4th rod piece；15, fore-stock；16, even
Bar；17, seat bar；2, the first locking piece；3, the second locking piece；31, the first guide groove；4, the first guide post；51, knob is unlocked；
52, the first hauling rope；53, the first sliding block；531, the first protrusion；54, the second sliding block；541, the second protrusion；542, the second guiding
Slot；55, the second hauling rope；61, first axle；62, the second axis；63, third axis；64, the 4th axis；65, the 5th axis；66, the 6th axis；
67, the 7th axis；7, front component；8, wheel assembly 9, the second guide post.
Specific embodiment
The technical solution of the utility model is further elaborated in the following with reference to the drawings and specific embodiments.
As shown in Fig. 1 ~ Fig. 4, the solution lock linkage device of the utility model includes the first rod piece 11, the second rod piece 12 and third
Rod piece 13, the first rod piece 11 rotates with the second rod piece 12 to be connect or the first rod piece 11 can be slidably arranged in the second bar
On part 12, third rod piece 13 and the second rod piece 12 are rotatablely connected, and solution lock linkage device further includes for locking 11 He of the first rod piece
The first locking mechanism of the relative position of second rod piece 12 and relative position for locking third rod piece 13 and the second rod piece 12
Second locking mechanism.
First locking mechanism includes the first locking piece 2, and the first locking piece 2 can rotate or be slidably arranged in the second rod piece
On 12, when first locking mechanism is in the lock state, the first locking piece 2 matches to prevent the first bar with the first rod piece 11
Part 11 is rotated or is slided relative to the second rod piece 12, so that the first rod piece 11 and the second rod piece 12 are maintained at unfolded state；When first
When locking mechanism is in the unlocked state, the cooperation between the first locking piece 2 and the first rod piece 11 is disengaged, so that the first rod piece 11 can
It rotates or slides relative to the second rod piece 12, to realize the folding operation of the first rod piece 11 and the second rod piece 12.In the present embodiment,
First rod piece 11 can be slidably arranged on the second rod piece 12 along the length extending direction of the second rod piece 12, the first locking piece 2
Rotatably it is arranged on the second rod piece 12.
Second locking mechanism includes the second locking piece 3, and the second locking piece 3 may be provided at the second rod piece 12 and third rod piece 13
Between to directly by the position of the second rod piece 12 and third rod piece 13 lock, also can be set in other and 13 phase of third rod piece
Between associated 4th rod piece 14 and the second rod piece 12, locked indirectly by the position of locking the 4th rod piece 14 and the second rod piece 12
The position of fixed second rod piece 12 and third rod piece 13, in the present embodiment, using latter situation.
Specifically, the second locking piece 3 can be slidably arranged in the second rod piece along the length extending direction of the second rod piece 12
On 12 or the second locking piece 3 is rotatably arranged on the second rod piece 12, is provided with locked groove on the 4th rod piece 14, when
When two locking mechanisms are in the lock state, the second locking piece 3 is plugged in locked groove, when second locking mechanism is in the unlocked state
When, the second locking piece 3 is deviate from from locked groove.
In the present embodiment, the second locking piece 3 is slidably arranged on the second rod piece 12.The solution lock linkage device further includes being used for
To the first guiding mechanism that the sliding of the second locking piece 3 is oriented to, the first guiding mechanism includes being fixed at the second rod piece
First on 12 guide post 4 and the first guide groove 31 for being arranged on the second locking piece 3, and the first guide post 4 is threaded through first and leads
It can be arranged into slot 31 and slidably along the length extending direction of the first guide groove 31.
Solution lock linkage device further includes the unlock knob 51 of activity setting, for connecting unlock knob 51 and the second locking piece
3 driving assembly drives opposite second rod piece 12 of the second locking piece 3 to slide when operation unlocks knob 51 by driving assembly,
To deviate from from locked groove, second locking mechanism is just unlocked.
In the present embodiment, unlock knob 51 is movably arranged on the first rod piece 11, at this point, driving assembly includes the first traction
Rope 52, the first sliding block 53, the second sliding block 54 and the second hauling rope 55, the both ends of the first hauling rope 52 respectively with unlock knob 51
It is connected with the first sliding block 53, the first sliding block 53 can be slidably arranged in the first rod piece along the length extending direction of the first rod piece 11
On 11, the second sliding block 54 can be slidably arranged on the second rod piece 12 along the length extending direction of the second rod piece 12, and second leads
The both ends of straw line 55 are connect with the second sliding block 54 and the second locking piece 3 respectively, when second locking mechanism is in the lock state,
First sliding block 53 and the second sliding block 54 match.When second locking mechanism operates unlock knob 51 in the locked state, pass through
First hauling rope 52 pulls the sliding of the first sliding block 53, by the cooperation of the first sliding block 53 and the second sliding block 54 so that the second sliding block 54
Also synchronous slide pulls opposite second rod piece 12 of the second locking piece 3 to slide, until the second locking piece 3 by the second hauling rope 55
Deviate from from the locked groove on the 4th rod piece 14, second locking mechanism just unlocks, at this point, third rod piece 13 can be with respect to the second rod piece 12
Rotation is folded.
In the present embodiment, the mode of the first sliding block 53 and the cooperation of the second sliding block 54 are as follows: be provided with first on the first sliding block 53
Protrusion 531 is provided with the second protrusion 541, when second locking mechanism is in the lock state, the first protrusion on second sliding block 54
531 and 541 Xiang Kashe of the second protrusion.
The solution lock linkage device further includes the second guiding mechanism being oriented to for the sliding to the second sliding block 54, and second
Guiding mechanism includes the second guide post 9 being fixed on the second rod piece 12 and the second guiding being arranged on the second sliding block 54
Slot 542, the second guide post 9 are threaded through in the second guide groove 542 and can slide along the length extending direction of the second guide groove 542
Ground setting.
In this way, third rod piece 13 just has the first, second, and third operating position, when first locking mechanism and second lock
When mechanism is in lock state, third rod piece 13 is in the first operating position, at this point, the first rod piece 11,12 and of the second rod piece
Third rod piece 13 is in unfolded state.After second locking mechanism unlock, third rod piece 13 can be rotated relative to the second rod piece 12,
Third rod piece 13 rotates up to third rod piece 13 and moves to the second operating position, and first locking mechanism is still in locking shape at this time
State；When third rod piece 13 is in the second operating position, third rod piece 13 is matched with the first locking piece 2.Specifically, third bar
The auxiliary section matched with the first locking piece 2 is provided on part 13, when third rod piece 13 is in the second operating position, the first lock
Determine part 2 to be fastened in the auxiliary section.When third rod piece 13 continues to rotate, third rod piece 13 can drive the first locking piece 2 opposite
The rotation of second rod piece 12 or sliding；When third rod piece 13 turns to extreme position, third rod piece 13 is in third working position at this time
It sets, the cooperation between the first locking piece 2 and the first rod piece 11 just disengages, and first locking mechanism just unlocks, at this time the first rod piece
11 can be folded relative to the rotation of the second rod piece 12 or sliding.
In the present embodiment, the first locking piece 2 is rotatably arranged on the second rod piece 12, the first locking piece 2 and third
The position that position that rod piece 13 matches, the first locking piece 2 are matched with the first rod piece 11 is located at the first locking piece 2 and
Opposite sides at the rotation connection of two rod pieces 12.
The solution lock linkage device, which may be provided on children trolley, to be used, and provides a kind of structure of children trolley in detail below:
Children trolley includes stroller frame, stroller frame include the first i.e. above-mentioned rod piece 11 of upper push-rod, lower push-rod i.e. on
The 4th i.e. above-mentioned rod piece 14 of the i.e. above-mentioned third rod piece 13 of the second rod piece 12, the side handrail stated, after-poppet, connects fore-stock 15
Bar 16 and seat bar 17.Front component 7 is rotationally connected to the lower part of fore-stock 15, and wheel assembly 8 is rotationally connected to after-poppet
That is the lower part of the 4th rod piece 14, when stroller frame is in unfolded state, fore-stock 15, side handrail, that is, third rod piece 13, second
Rod piece 12 and the first rod piece 11 are obliquely installed upwards from front to back, and inclination is set after-poppet i.e. the 4th rod piece 14 upwards from back to front
It sets.
The top of fore-stock 15 is rotated by first axle 61 with the after-poppet i.e. top of the 4th rod piece 14 and is connect；Side handrail
I.e. the lower part of third rod piece 13 is at least and in two, the top component of i.e. the 4th rod piece 14 of the top of fore-stock 15 and after-poppet
One component is rotated connection by the second axis 62, side handrail, that is, third rod piece 13 top and i.e. the second rod piece 12 of lower push-rod
Top is rotated connection by third axis 63；The one end of connecting rod 16 is turned with lower push-rod i.e. the second rod piece 12 by 64 phase of the 4th axis
Dynamic connection, the other end of connecting rod 16, which is rotated with after-poppet i.e. the 4th rod piece 14 by the 5th axis 65, to be connect；The one of seat bar 17
End is rotated by the 6th axis 66 with fore-stock 15 and is connect, and the other end of seat bar 17 is turned with connecting rod 16 by 67 phase of the 7th axis
Dynamic connection.
A kind of specific embodiment, first axle 61 and the second axis 62 extend along same rectilinear direction, i.e., fore-stock 15 is upper
Portion, the after-poppet i.e. top of the 4th rod piece 14 and side handrail, that is, third rod piece 13 component of lower part three pass through first axle 61/
Second axis, 62 same axis rotation connection, as shown in Fig. 1 ~ Fig. 8.In this way, in fore-stock 15, after-poppet i.e. the 4th rod piece 14, connecting rod
A four-bar mechanism is just formed between 16 and seat bar 17, in the second rod piece 12, side handrail, that is, third rod piece 13, after-poppet i.e. the
Also a four-bar mechanism is formed between four rod pieces 14 and connecting rod 16.
Another specific embodiment, side handrail, that is, third rod piece 13 lower part and the after-poppet i.e. top of the 4th rod piece 14
It is rotated connection by the second axis 62, the setting parallel with the second axis 62 of first axle 61 is not shown.
When stroller frame is in unfolded state, on fore-stock 15, the 6th axis 66 is located at 61/ second axis 62 of first axle
Lower section；On after-poppet i.e. the 4th rod piece 14, the 5th axis 65 is located at the lower section of 61/ second axis 62 of first axle；In lower push-rod i.e.
On two rod pieces 12, the 4th axis 64 is located at the lower section of third axis 63；On connecting rod 16, the 7th axis 67 is located at the 4th axis 64 and the 5th axis
Between 65.
When children trolley is in unfolded state, first locking mechanism and second locking mechanism are in lock state, side
Handrail, that is, third rod piece 13 is in the first operating position, as shown in Fig. 5 ~ Fig. 7.
The children trolley can carry out secondary folding, when children trolley folds, first once folded, when folding, first made
Second locking mechanism unlock when unlock, presses the button of unlock knob 51, by the first hauling rope 52 pull the first sliding block 53 to
Upper sliding, by the first sliding block 53 with the cooperation of the second sliding block 54 so that the second sliding block 54 also synchronous upward sliding, passes through second
Hauling rope 55 pulls opposite 12 upward sliding of i.e. the second rod piece of lower push-rod of the second locking piece 3, until the second locking piece 3 is from after-poppet
That is deviate from the locked groove on the 4th rod piece 14, second locking mechanism just unlocks；After second locking mechanism unlock, overturns push away forward
Bar i.e. the first rod piece 11 and lower push-rod i.e. the second rod piece 12, so that side handrail, that is, third rod piece 13 is around 61/ second axis 62 of first axle
It downwardly turns over and is drawn close with after-poppet i.e. the 4th rod piece 14, drive fore-stock 15 around first axle 61/ by connecting rod 16 and seat bar 17
Two axis 62 are turned over to be drawn close with after-poppet i.e. the 4th rod piece 14, as shown in Figure 8 and Figure 9, until each bar of composition stroller frame 1
Part close proximity together, so far completes the primary folding of children trolley, and structure of the children trolley under a folded state is shown
It is intended to as shown in Figure 10 and Figure 11；Children trolley is in a folding process, when side handrail, that is, third rod piece 13 is turned to and is in
When the second operating position, side handrail, that is, third rod piece 13 is matched with the first locking piece 2, at this time side handrail, that is, third rod piece 13 after
When continuous rotation, the first locking piece 2 synchronous rotation will drive, after side handrail, that is, third rod piece 13 turns folding in place, i.e. children
After the completion of cart once folds, at this point, side handrail, that is, third rod piece 13 is in third operating position, just make the first locking piece
2 and the first cooperation between rod piece 11 disengage, first locking mechanism just unlocks；After first locking mechanism unlock, make upper push-rod i.e.
First rod piece 11 along the lower push-rod i.e. length extending direction slide downward of the second rod piece 12, until upper push-rod i.e. the first rod piece 11 with
Lower push-rod i.e. the second rod piece 12 is close together, and so far completes the secondary folding of children trolley, children trolley is in secondary folding shape
Structural schematic diagram under state is as shown in Figure 12 and Figure 13.Folded children trolley is compact-sized, small volume, it is easy to carry and
Storage.
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 solution lock linkage device, including the first rod piece, the second rod piece and third rod piece, first rod piece and described second
Rod piece rotate connection or first rod piece can be slidably arranged on second rod piece, the third rod piece with
Second rod piece rotates connection, and the solution lock linkage device further includes for locking first rod piece and second bar
The of the first locking mechanism of the relative position of part and the relative position for locking the third rod piece and second rod piece
Two locking mechanisms, the first locking mechanism include the first locking piece being movably arranged on second rod piece, and feature exists
In: the third rod piece has the first, second, and third operating position, when the third rod piece is in the first operating position,
The first locking mechanism and the second locking mechanism are in lock state, after second locking mechanism unlock, institute
Stating third rod piece can rotate relative to second rod piece, until the third rod piece is in the second operating position, the third
Rod piece is matched with first locking piece, and the third rod piece rotation drives first locking piece to move, when the third
When rod piece is in third operating position, the first locking mechanism unlock.
2. solution lock linkage device according to claim 1, it is characterised in that: first locking piece is rotatably arranged
On second rod piece, when the first locking mechanism is in the lock state, first locking piece and first bar
Part matches, when the first locking mechanism is in the unlocked state, between first locking piece and first rod piece
Cooperation disengages.
3. solution lock linkage device according to claim 2, it is characterised in that: first rod piece can be along second bar
The length extending direction of part is slidably arranged on second rod piece, when the first locking mechanism is in the lock state,
First locking piece is supported and is located on the one end of first rod piece, when the first locking mechanism is in the unlocked state,
First locking piece is far from first rod piece.
4. solution lock linkage device according to claim 2, it is characterised in that: first locking piece and the third rod piece
The position that the position that matches, first locking piece are matched with first rod piece be located at first locking piece with
Opposite sides at the rotation connection of second rod piece.
5. solution lock linkage device according to claim 1, it is characterised in that: be provided on the third rod piece and described
The auxiliary section that one locking piece matches, when the third rod piece is in the second operating position, first locking piece is fastened on
In the auxiliary section.
6. solution lock linkage device according to claim 1, it is characterised in that: the second locking mechanism includes the second locking
Part, second locking piece can be rotated or are slidably arranged on second rod piece, and the solution lock linkage device further includes
The unlock knob and driving assembly of activity setting, the driving component connect with the unlock knob and second locking piece respectively
It connects, when operating the unlock knob, drives relatively described second rod piece of second locking piece to turn by the driving component
Dynamic or sliding, so that the second locking mechanism be made to unlock.
7. solution lock linkage device according to claim 6, it is characterised in that: the unlock knob is arranged in first bar
On part, the driving component includes the first hauling rope, the first sliding block, the second sliding block and the second hauling rope, first hauling rope
Both ends connect respectively with the unlock knob and first sliding block, first sliding block can be along first rod piece
Length extending direction is slidably arranged on first rod piece, and second sliding block can prolong along the length of second rod piece
Direction is stretched to be slidably arranged on second rod piece, the both ends of second hauling rope respectively with second sliding block and institute
State the connection of the second locking piece, when the second locking mechanism is in the lock state, first sliding block and second sliding block
It matches.
8. solution lock linkage device according to claim 7, it is characterised in that: it is convex to be provided with first on first sliding block
Portion is provided with the second protrusion on second sliding block, when the second locking mechanism is in the lock state, first protrusion
With the second protrusion Xiang Kashe.
9. solution lock linkage device according to claim 6, it is characterised in that: second locking piece is for directly locking institute
The relative position of the second rod piece Yu the third rod piece is stated, alternatively, second locking piece is for locking and the third rod piece
The relative position of associated 4th rod piece and second rod piece.
10. a kind of children trolley, it is characterised in that: have solution lock linkage device any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077262.8U CN208682892U (en) | 2018-07-09 | 2018-07-09 | A kind of solution lock linkage device and children trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821077262.8U CN208682892U (en) | 2018-07-09 | 2018-07-09 | A kind of solution lock linkage device and children trolley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208682892U true CN208682892U (en) | 2019-04-02 |
Family
ID=65880515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821077262.8U Active CN208682892U (en) | 2018-07-09 | 2018-07-09 | A kind of solution lock linkage device and children trolley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208682892U (en) |
-
2018
- 2018-07-09 CN CN201821077262.8U patent/CN208682892U/en active Active
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