CN110562376A - Folding structure of scooter - Google Patents
Folding structure of scooter Download PDFInfo
- Publication number
- CN110562376A CN110562376A CN201910845056.XA CN201910845056A CN110562376A CN 110562376 A CN110562376 A CN 110562376A CN 201910845056 A CN201910845056 A CN 201910845056A CN 110562376 A CN110562376 A CN 110562376A
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- Prior art keywords
- piece
- locking piece
- locking
- rotating shaft
- driving
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 125000006850 spacer group Chemical group 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K15/00—Collapsible or foldable cycles
- B62K15/006—Collapsible or foldable cycles the frame being foldable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Motorcycle And Bicycle Frame (AREA)
Abstract
the invention discloses a folding structure of a scooter, aiming at overcoming the problems of inconvenient operation and unreliable positioning in the prior art, comprising a mounting seat, a rotating shaft, a locking piece and a sliding locking piece, wherein the mounting seat is fixedly provided with a mounting seat; the locking piece is provided with an elastic piece which forces the second ratchet to keep meshed with the first ratchet; the driving piece is provided with a connecting piece, and the connecting piece can be locked on the locking piece or unlocked from the locking piece.
Description
Technical Field
the invention belongs to a scooter, in particular to a folding structure of a scooter.
Background
The scooter can roughly be divided into manpower scooter and electric scooter, and manpower scooter mainly is towards children, as the toy of an amusement, and electric scooter then can regard as the instrument of riding instead of walk, has advantages such as light in weight, portable, has now become the first-selected vehicle that the short distance was ridden instead of walk. The folding structure of the scooter is one of the components of the scooter, and plays the roles of reducing the storage space and the transportation cost.
However, the prior art is not perfect, the folding structure of the prior scooter is inconvenient to fold and unfold, and the positioning reliability is also deficient.
Disclosure of Invention
In order to overcome the defects and problems in the prior art, the invention provides the folding structure of the scooter, which has the advantages of compact structure, simple operation and firm positioning.
In order to achieve the purpose, the invention adopts the following technical scheme:
A folding structure of a scooter comprises a mounting seat, wherein a rotating shaft is fixedly arranged on the mounting seat, a locking piece capable of sliding in the axial direction of the rotating shaft is arranged on the rotating shaft, the locking piece can be inserted on the mounting seat or separated from the mounting seat in a sliding mode, when the locking piece is inserted on the mounting seat, the locking piece is circumferentially fixed on the rotating shaft, when the locking piece is separated from the mounting seat, the locking piece can rotate around the rotating shaft, and when the locking piece rotates around the rotating shaft, the scooter can be folded or unfolded;
A driving piece is axially fixed on the rotating shaft and can rotate around the rotating shaft, a first ratchet is formed on the driving piece, a second ratchet meshed with the first ratchet is formed on the locking piece, and when the driving piece rotates relative to the locking piece, the driving piece drives the locking piece to axially slide;
The locking piece is provided with an elastic piece which forces the second ratchet to keep meshed with the first ratchet;
The driving piece is provided with a connecting piece, the connecting piece can be locked on the locking piece or the locking of the locking piece is released, when the connecting piece is locked on the locking piece, the locking piece can be kept inserted on the mounting seat, and when the connecting piece is released, the locking piece can rotate relative to the locking piece.
preferably, the elastic piece is two elastic swing arms that are fixed together, and the elastic swing arm all is fixed and is provided with the locking piece, and the both sides of driving piece all are formed with the second ratchet that corresponds to two locking pieces, and when the relative locking piece of driving piece rotated, two locking pieces can keep away from each other or be close to each other.
Preferably, the elastic swing arm is provided with a plurality of hollow parts.
Preferably, the connecting piece comprises a mounting frame, the mounting frame is fixedly arranged on the driving piece, a lock pin is arranged on the mounting frame in a sliding mode, the mounting frame is provided with a limiting wall, a limiting rod is fixedly arranged between the two elastic swing arms, when the limiting wall abuts against the limiting rod, the lock pin slides, the lock pin and the limiting wall can be respectively arranged on two sides of the limiting rod, a spring is arranged between the lock pin and the mounting frame, and the spring can force the lock pin to be arranged on one side of the limiting rod.
Preferably, the mounting bracket is hollow, and the lockpin slides and sets up in the mounting bracket, slides the lockpin, and the lockpin can slide outside the mounting bracket or slide to the mounting bracket, and the bar hole has been seted up to the side of mounting bracket, and the inside of bar hole intercommunication mounting bracket is fixed on the lockpin and is provided with the spacer pin, and the spacer pin passes through the bar hole and exposes outside the mounting bracket.
Preferably, the mounting bracket is integrally formed as a handle bar.
preferably, the mounting seat has a first toothed surface formed thereon, the lock member has a second toothed surface formed thereon, and the slide lock member has the second toothed surface engageable with or disengageable from the first toothed surface.
Preferably, an arc-shaped groove is formed in the mounting seat, a sliding block is formed in the locking piece, and the sliding block is slidably arranged in the arc-shaped groove.
Preferably, an annular groove is formed in the circumferential direction of the rotating shaft, a bolt is detachably arranged on the driving piece, and the bolt is arranged in the annular groove in a sliding mode.
Compared with the prior art, the invention has the outstanding and beneficial technical effects that:
(1) When the locking piece needs to be folded or unfolded, the locking piece is unlocked by the connecting piece, the locking piece can automatically break away from the mounting seat under the action of the elastic piece, so that the locking piece can freely rotate around the rotating shaft, and when the mounting seat and the locking piece are fixed together at the folding position or the unfolding position, the driving piece is rotated relative to the locking piece, the driving piece drives the locking piece to be inserted on the mounting seat, the connecting piece is locked on the locking piece, so that the locking piece is kept at the folding position and the unfolding position, and therefore the folding structure of the scooter has the advantages of being compact in structure, simple in operation and firm in positioning.
(2) the elastic component is two elastic swing arms that are in the same place of reciprocal anchorage, the relative locking piece pivoted in-process of driving piece, two locking pieces keep away from each other or are close to each other along the axial of pivot, elastic swing arm together outside or incurving two, this structure realizes that the elastic component drives the locking piece automatically and breaks away from the driving piece and keeps first ratchet meshing on the second ratchet when removing external force or no external force effect down, structural design is more reasonable, the while has simplified the assembly and has improved the fastness of location.
(3) The side of mount pad is formed with first profile of tooth, and the side of locking piece is formed with second profile of tooth, and the locking piece slides, and second profile of tooth can different angles mesh on first profile of tooth to the expansion angle location that the locking piece can be different adopts first profile of tooth and second profile of tooth complex mode to have the location more firm, location angle advantage abundanter.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic illustration of an explosive structure of the present invention;
FIG. 3 is a schematic view of an exploded structure of the connector of the present invention;
In the figure: 1-plate body, 2-handlebar rod, 3-mounting seat, 4-rotating shaft, 5-locking piece, 6-elastic swing arm, 7-driving piece, 8-connecting piece, 9-limiting rod, 31-first tooth surface, 32-arc groove, 41-annular groove, 51-second tooth surface, 52-second ratchet, 53-sliding block, 61-hollowed part, 71-first ratchet, 72-bolt, 81-mounting frame, 82-locking pin, 83-limiting pin, 84-spring, 811-limiting wall, 812-strip-shaped hole and 813-hoop.
Detailed Description
To facilitate understanding of those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings and the specific embodiments.
as shown in fig. 1 to 3, a folding structure of a scooter comprises a handlebar rod 2 and a board body 1, wherein the board body 1 is used for a person to step on when driving, and the handlebar rod 2 is used for holding on to control the direction when driving.
This scooter's beta structure is as one of the component parts of manpower drive's scooter or electric drive's scooter, and mainly used is folded handlebar pole 2 on plate body 1 or is expanded from plate body 1, reduces and accomodates and transport the space.
The fixed mount pad 3 that is provided with on the plate body 1, the fixed pivot 4 that is provided with on the mount pad 3, the cover is equipped with locking piece 5 in the pivot 4, and locking piece 5 can slide on the axial of pivot 4, and locking piece 5 slides, and locking piece 5 can peg graft on mount pad 3 or break away from mount pad 3, and the structure that locking piece 5 and mount pad 3 realized pegging graft can be boss and groove structure.
When locking piece 5 pegs graft on mount pad 3, locking piece 5 circumference is fixed on pivot 4, breaks away from mount pad 3 when locking piece 5, and locking piece 5 can revolute 4 rotations of pivot. When the locking member 5 rotates around the rotating shaft 4, the scooter can be folded or unfolded.
through above-mentioned structure locking member 5 can be fixed a position in expansion position or folding position department, and handlebar pole 2 sets up on locking member 5 to locking member 5 can drive handlebar pole 2 and fold on plate body 1 or expand and fix a position in folding position or expansion position department from plate body 1.
The driver 7 is axially fixed on the rotating shaft 4, the driver 7 is specifically sleeved on the rotating shaft 4, the driver 7 can rotate around the rotating shaft 4, the locking piece 5 is arranged between the driver 7 and the mounting seat 3, a first ratchet 71 is formed on the side surface of the driver 7, the first ratchet 71 is a tapered tooth, more than one first ratchet 71 is arranged, the first ratchets 71 are uniformly arranged on the side surface of the driver 7 by taking the rotating shaft 4 as a rotation center, a second ratchet 52 corresponding to the first ratchet 71 is formed on the side surface of the locking piece 5, the second ratchet 52 is also a tapered tooth, more than one second ratchet 52 is also arranged, the rotating shaft 4 of the second ratchets 52 is also uniformly arranged on the side surface of the locking piece 5 by taking the rotating shaft 4 as a rotation center, and the first ratchet 71 is meshed on the second ratchet 52.
When the driving member 7 rotates relative to the locking member 5, the driving member 7 drives the locking member 5 to axially slide, and the driving member 7 can drive the locking member 5 to be inserted into the mounting seat 3 or separated from the mounting seat 3.
The in-process of driving piece 7 drive locking piece 5, locking piece 5 slides in the axial of pivot 4 to the slip of locking piece 5 is realized in the rotation through driving piece 7 to the steerable locking piece 5 of user's accessible driving piece is pegged graft on mount pad 3 or breaks away from mount pad 3, and structure is compacter, use safelyr, operation is more simple and convenient.
the driving piece 7, the locking piece 5 and the mounting seat 3 are sequentially arranged on the rotating shaft 4 along the axial direction of the rotating shaft 4, the layout is more reasonable, and the compactness of the structure is improved.
the driving piece 7 is provided with a connecting piece 8, the connecting piece 8 can be locked on the locking piece 5 or the locking of the locking piece 5 is released,
When the connecting piece 8 is locked on the locking piece 5, the driving piece 7 and the locking piece 5 are fixedly arranged together, the locking piece 5 can be kept inserted on the mounting seat 3, and when the connecting piece 8 releases the locking of the locking piece 5, the driving piece 7 can freely rotate relative to the locking piece 5, so that the handlebar is kept at the folding position or the unfolding position.
The locking member 5 is provided with an elastic member which exerts an elastic force on the locking member 5 toward the driver 7, the elastic member urging the second ratchet 52 to remain engaged with the first ratchet 71. When the connecting piece 8 releases the locking of the locking piece 5, the locking piece slides on the driving piece 7 under the action of the elastic piece, the locking piece 5 is separated from the mounting seat 3, the driving piece 7 and the locking piece 5 are fixed together, the folding or unfolding efficiency of the handlebar stem 2 is improved, and the sliding of the locking piece 5 and the locking of the connecting piece 8 are conveniently driven by the subsequent driving piece 7.
When locking piece 5 needs to be folded or unfolded, dismantle connecting piece 8 from locking piece 5, locking piece 5 can break away from mount pad 3 automatically under the effect of elastic component, thereby locking piece 5 can revolute 4 free rotations of axle, and need fix driving piece 7 and locking piece 5 together in folding position and unfolding position department, relative locking piece 5 rotates driving piece 7, driving piece 7 drives locking piece 5 and pegs graft on mount pad 3, lock the connecting piece on locking piece 5 again, thereby realize that locking piece 5 is fixed to be set up in folding position and unfolding position department, consequently this scooter's beta structure has compact structure, and easy operation, the firm advantage in location.
The elastic piece is two elastic swing arms 6 fixed together, the handlebar stem 2 is fixed on the elastic swing arms 6, the elastic swing arms 6 correspond to the locking pieces 5 and the mounting seats 3 one by one, the two locking pieces 5 are respectively arranged on two sides of the driving piece 7, the two mounting seats 3 are respectively arranged on two sides of the two mounting seats 3, the elastic swing arms 6 are fixedly arranged on the corresponding locking pieces 5, the second ratchets 52 are respectively formed on two sides of the driving piece 7, the locking pieces 5 on two sides can be respectively meshed with the second ratchets 52 on two sides of the driving piece 7, in the process that the driving piece 7 rotates relative to the locking pieces 5, the two locking pieces 5 are far away from or close to each other along the axial direction of the rotating shaft 4, the two elastic swing arms 6 are outwards or inwards bent together, the structure realizes that the elastic piece drives the locking pieces 5 to be separated from the mounting seats 3 when external force is removed or no external force is applied, and keeps the first ratchets 71 meshed on the second ratchets, structural design is more reasonable, has simplified the assembly simultaneously and has improved the fastness of location.
The elastic swing arm 6 is provided with the plurality of hollow parts 61, so that the quality of the elastic swing arm 6 is reduced, the material consumption is reduced, the production cost is reduced, and the elastic deformation performance of the elastic swing arm 6 is improved.
The side of mount pad 3 is formed with first profile 31, and the side of locking piece 5 is formed with the second profile 51 that corresponds to first profile 31, and first profile 31 and second profile 51 comprise a plurality of archs, and the corresponding arch evenly forms the side of mount pad 3 or the side of locking piece 5 along the circumference of pivot 4.
The sliding locking piece 5 and the second toothed surface 51 can be engaged on the first toothed surface 31 at different angles, so that the locking piece 5 can be positioned at different spreading angles on the mounting base 3, and the first toothed surface 31 and the second toothed surface 51 are matched to have the advantages of firmer positioning and richer positioning angles.
be formed with arc wall 32 on the mount pad 3, arc wall 32 specifically is located first profile surface 31, is formed with slider 53 on the locking piece 5, and slider 53 is located second profile surface 51, and slider 53 slidable ground sets up in arc wall 32, and slider 53 is injectd and is slided in arc wall 32 to locking piece 5 receives the injecing in pivot 4 turned angle, takes place tong scheduling problem when avoiding rotating handlebar pole 2, has further improved security and the compact structure nature of using.
Connecting piece 8 includes mounting bracket 81, mounting bracket 81 is fixed to be set up on driving piece 7, it is provided with lockpin 82 to slide on mounting bracket 81, mounting bracket 81 has spacing wall 811, the fixed gag lever post 9 that is provided with between two elasticity swing arms 6, gag lever post 9 is located spacing wall 811's rotation route, rotate to spacing wall 811 butt on gag lever post 9 when mounting bracket 81, sliding lock pin 82, lockpin 82 and spacing wall 811 can butt respectively in the both sides of gag lever post 9, thereby realize that mount pad 3 and locking piece 5 are fixed to be set up together.
A spring 84 is arranged between the lock pin 82 and the mounting bracket 81, and the spring 84 can force the lock pin 82 to be kept in abutment with one side of the limiting rod 9, so that the connecting piece 8 can be kept connected to the limiting rod 9 under the condition that external force is removed or no external force is applied.
specifically, mounting bracket 81 is hollow, and lockpin 82 slides and sets up in mounting bracket 81, and sliding lock pin 82, lockpin 82 can slide outside mounting bracket 81 or slide to mounting bracket 81, have further improved the compactness of structure.
A spring 84 is disposed within the mounting bracket 81, with one end of the spring 84 abutting against the latch 82 and the other end of the spring 84 abutting against the interior of the mounting bracket 81.
The bar hole 812 has been seted up to the side of mounting bracket 81, bar hole 812 communicates the inside of mounting bracket 81, and threaded connection has the spacer pin 83 on the lockpin 82, and the spacer pin 83 exposes in the side of mounting bracket 81 through bar hole 812, and the spacer pin 83 is injectd and is slided in bar hole 812 to the slip stroke of lockpin 82 has been injectd, and the user can directly touch the spacer pin 83 and carry out the slip of lockpin 82, has further improved the security of using.
the anchor ear 813 is fixedly arranged on the mounting frame 81, the anchor ear 813 can be integrally formed on the mounting frame 81, and the mounting frame 81 is fixedly arranged on the driving piece 7 through the anchor ear 813.
The mounting bracket 81 is integrally shaped as a handle bar, so that a user can hold the mounting bracket 81 by hand to drive the limiting pin 83 to slide and the mounting bracket 81 to rotate, and further operation and control are facilitated.
Annular groove 41 has been seted up to the circumference of pivot 4, can dismantle on the driving piece 7 and be provided with bolt 72, bolt 72 threaded connection is on driving piece 7, and bolt 72 slides and sets up in annular groove 41 to realize driving piece 7 axial fixity on pivot 4.
The general use flow of the folding structure of the scooter is described as follows:
When the handlebar stem 2 needs to be folded onto the plate body 1, the limiting pin 83 slides, the lock pin 82 is separated from the limiting rod 9, under the elastic action of the elastic swing arm, the first toothed surface 31 is separated from the second toothed surface 51, the handlebar stem 2 can freely rotate relative to the plate body 1, the handlebar stem 2 is rotated to a folding position, the driving piece 7 is rotated relative to the locking piece 5, the first toothed surface 31 is meshed onto the second toothed surface 51, the lock pin 82 is inserted again into one side of the limiting rod 9, the handlebar stem 2 is fixed relative to the plate body 1, and therefore the handlebar stem 2 is kept at the folding position, and on the contrary, the handlebar stem 1 can be kept at an unfolding position.
the above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The folding structure of the scooter is characterized by comprising a mounting seat (3), wherein a rotating shaft (4) is fixedly arranged on the mounting seat (3), a locking piece (5) capable of sliding in the axial direction of the rotating shaft (4) is arranged on the rotating shaft (4), the locking piece (5) slides, the locking piece (5) can be inserted on the mounting seat (3) or separated from the mounting seat (3), when the locking piece (5) is inserted on the mounting seat (3), the locking piece (5) is circumferentially fixed on the rotating shaft (4), when the locking piece (5) is separated from the mounting seat (3), the locking piece (5) can rotate around the rotating shaft (4), and when the locking piece (5) rotates around the rotating shaft (4), the scooter can be folded or unfolded;
A driving piece (7) is axially fixed on the rotating shaft (4), the driving piece (7) can rotate around the rotating shaft (4), a first ratchet (71) is formed on the driving piece (7), a second ratchet (52) meshed with the first ratchet (71) is formed on the locking piece (5), and when the driving piece (7) rotates relative to the locking piece (5), the driving piece (7) drives the locking piece (5) to axially slide;
The locking piece (5) is provided with an elastic piece which forces the second ratchet (52) to keep engaged with the first ratchet (71);
Be provided with connecting piece (8) on driving piece (7), connecting piece (8) lockable is on locking piece (5) or releases the locking to locking piece (5), locks on locking piece (5) when connecting piece (8), and locking piece (5) can keep pegging graft on mount pad (3), and when connecting piece (8) released the locking to locking piece (5), driving piece (7) can rotate relative locking piece (5).
2. The folding structure of a scooter according to claim 1, wherein the elastic member is two elastic swing arms (6) fixed to each other, each of the elastic swing arms (6) is fixedly provided with a locking member (5), and each of two sides of the driving member (7) is formed with a second ratchet (52) corresponding to the two locking members (5), and when the driving member (7) rotates relative to the locking members (5), the two locking members (5) can move away from or move close to each other.
3. The folding structure of a scooter according to claim 2, wherein the elastic swing arm (6) is provided with a plurality of hollows (61).
4. The folding structure of a scooter according to claim 2 or 3, characterized in that the connecting member (8) comprises a mounting bracket (81), the mounting bracket (81) is fixedly arranged on the driving member (7), a lock pin (82) is slidably arranged on the mounting bracket (81), the mounting bracket (81) has a limiting wall (811), a limiting rod (9) is fixedly arranged between the two elastic swing arms (6), when the limiting wall (811) abuts against the limiting rod (9), the lock pin (82) is slidably arranged, the lock pin (82) and the limiting wall (811) can be respectively arranged at two sides of the limiting rod (9), a spring (84) is arranged between the lock pin (82) and the mounting bracket (81), and the spring (84) can force the lock pin (82) to be arranged at one side of the limiting rod (9).
5. The folding structure of a scooter according to claim 6, wherein the mounting rack (81) is hollow, the lock pin (82) is slidably disposed in the mounting rack (81), the lock pin (82) is slidably disposed, the lock pin (82) can slide outwards the mounting rack (81) or slide inwards the mounting rack (81), a strip-shaped hole (812) is formed in a side surface of the mounting rack (81), the strip-shaped hole (812) communicates with the inside of the mounting rack (81), a limit pin (83) is fixedly disposed on the lock pin (82), and the limit pin (83) is exposed out of the mounting rack (81) through the strip-shaped hole (812).
6. The folding structure of a scooter according to claim 7, characterized in that the mounting frame (81) is integrally formed as a handle bar.
7. A folding structure for a scooter according to claim 1, characterized in that said mounting seat (3) is formed with a first toothed surface (31), said locking member (5) is formed with a second toothed surface (51), said sliding locking member (5) is adapted to engage with said first toothed surface (31) or disengage from said first toothed surface (31) said second toothed surface (51).
8. The folding structure of a scooter according to claim 1 or 7, characterized in that the mounting seat (3) is formed with an arc-shaped slot (32), the locking member (5) is formed with a sliding block (53), and the sliding block (53) is slidably disposed in the arc-shaped slot (32).
9. The folding structure of a scooter according to claim 1, wherein the rotation shaft (4) has an annular groove (41) formed along the circumference thereof, the driving member (7) has a plug (72) detachably disposed thereon, and the plug (72) is slidably disposed in the annular groove (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845056.XA CN110562376B (en) | 2019-09-07 | 2019-09-07 | Folding structure of scooter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910845056.XA CN110562376B (en) | 2019-09-07 | 2019-09-07 | Folding structure of scooter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110562376A true CN110562376A (en) | 2019-12-13 |
| CN110562376B CN110562376B (en) | 2024-06-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910845056.XA Active CN110562376B (en) | 2019-09-07 | 2019-09-07 | Folding structure of scooter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110562376B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112874682A (en) * | 2021-04-06 | 2021-06-01 | 淮安品向工业设计有限公司 | Folding mechanism of scooter |
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| CN112874682B (en) * | 2021-04-06 | 2022-06-24 | 淮安品向工业设计有限公司 | Folding mechanism of scooter |
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