CN110254583A - Self-locking mechanism and folding joint - Google Patents
Self-locking mechanism and folding joint Download PDFInfo
- Publication number
- CN110254583A CN110254583A CN201910652798.0A CN201910652798A CN110254583A CN 110254583 A CN110254583 A CN 110254583A CN 201910652798 A CN201910652798 A CN 201910652798A CN 110254583 A CN110254583 A CN 110254583A
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- Prior art keywords
- folding joint
- handle
- latch segment
- self
- locking
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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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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 230000004308 accommodation Effects 0.000 claims description 19
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 206010003671 Atrioventricular Block Diseases 0.000 description 1
- 208000010271 Heart Block Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
Abstract
The invention discloses a kind of self-locking mechanisms, comprising: handle, one end open up groove, and the groove inner wall opens up sliding slot；Offset assembly is rotatably set in groove, and the periphery of the offset assembly opens up a card slot；And from locking bolt, it is set in sliding slot and slidably, described from locking bolt includes latch segment and elastic component to length direction, and the latch segment is connected to the periphery of offset assembly, and the elastic component offer latch segment presses in the power of the periphery of offset assembly along the chute；The handle is rotated, described to follow handle to rotate from locking bolt, when turning to the card slot, the latch segment is inserted into card slot under resilient element urges, and the handle is locked.Invention additionally discloses a kind of folding joint, including self-locking mechanism, upper folding joint, lower folding joint and retaining mechanism, the retaining mechanism is for locking folding joint and lower folding joint.Self-locking mechanism and folding joint provided by the invention, reliable lock are highly-safe.
Description
Technical field
The present invention relates to technical field of bicycles, specifically, being related to a kind of self-locking mechanism and folding joint.
Background technique
Existing bicycle folder is usually rotated using handle in order to avoid causing locking to be failed because handle loosens
The pressure of process limits the rotation of handle.When locking intensity is higher, locking reconciliation open locking is required energetically
It is able to achieve, inconvenient for use, when locking intensity is lower, it is unreliable to lock, and may loosen even in unexpectedly touching lower handle
It opens, folder can fail, and bring great security risk to the personnel of riding.
A kind of quick-release and self-locking handle of bicycle disclosed application No. is 200810037770.8 Chinese patent, including handle is recessed
With one end of screw rod block in mouthful, self-locking stick is set therebetween, closing piece, closing piece and screw rod block lockhole phase are set on self-locking stick
To match, the other side of self-locking stick is equipped with spring, in the hole opened up in the other end setting of spring and handle recess, one end of self-locking stick
Equipped with button, the other end is provided with hole, and eccentric block is nearby provided with self-locking stick dowel hole on handle, and self-locking stick will be with handle by pin
The recess of eccentric block is flexibly connected, and makes self-locking stick self-return under the action of pin, spring, screw rod block is lockked, and ensure that certainly
The safety driven a vehicle in traveling on the way.However, being easy to jump out mistake because foreign matter enters since the structure spring is in exposed state
Effect.And when spring, which is used for a long time or is damaged, leads to failure, which will be unable to be maintained in the recess of eccentric block, cause
Locking failure, there are certain security risks.
Summary of the invention
The purpose of the present invention is to provide a kind of self-locking mechanism and folding joint, reliable lock is highly-safe.
Technical solution used by self-locking mechanism disclosed by the invention is:
A kind of self-locking mechanism, comprising: handle, one end open up groove, and the groove inner wall opens up sliding slot；Offset assembly, can
Rotation is set in groove, and the periphery of the offset assembly opens up a card slot；And from locking bolt, it is set in sliding slot and along the chute
Slidably, described from locking bolt include latch segment and elastic component to length direction, and the latch segment is connected to the periphery of offset assembly,
The elastic component provides latch segment and presses in the power of the periphery of offset assembly；The handle is rotated, it is described to follow handle from locking bolt
Rotation, when turning to the card slot, the latch segment is inserted into card slot under resilient element urges, and the handle is locked.
Preferably, the accommodation groove of bar shaped is opened up in the middle part of the latch segment；It is described from locking bolt further include guide part, institute
It states guide part one end and is fixed on sliding slot, the other end extends and protrudes into accommodation groove, the guide part and accommodation groove cooperation guidance institute
State the glide direction of latch segment.
Preferably, the elastic component is set in accommodation groove, and one end of the elastic component abuts the guide part, separately
One end abuts the accommodation groove inner wall.
Preferably, the opposite sides of the accommodation groove inner wall shrinks to form closing in, and the elastic component other end supports
It is connected at closing in.
Preferably, the guide part is at least spaced two groups of setting.
Preferably, the sliding slot inner wall opens up the window of a bar shaped, and side wall protrusion in the latch segment side is formed
Stretch out in the shifting block portion of window.
Preferably, the opposite another side wall protrusion of the latch segment forms the fastening block part being harmonious with card slot.
Invention additionally discloses a kind of folding joints, including self-locking mechanism, upper folding joint, lower folding joint and locking machine
Structure, the upper folding joint and lower folding joint are movably hinged, and the retaining mechanism is for locking folding joint and lower folding
Connector；The self-locking mechanism includes handle, offset assembly, from locking bolt, and the handle is articulated with lower folding joint.
Preferably, the offset assembly includes: pin shaft, and the groove and lower folding for being laterally threaded through the handle connect
On head；Eccentric block, be set to the groove in, and with the pin shaft eccentric setting；Positioning pin connects the eccentric block and handle；
And ratchet connecting rod, it is described including being movably set in the ratchet portion of the eccentric block and the link rod part in the connection ratchet portion
Card slot is provided with the periphery in the ratchet portion；Rotate the handle around pin shaft, the eccentric block follows pin shaft to rotate, rotation
The eccentric block center displacement is to drive the ratchet portion to be subjected to displacement with link rod part.
Preferably, the retaining mechanism is set to link rod part far from ratchet portion one end, including vee-block；The vee-block
End face be equipped with a pair of of card convex block of protrusion side by side up and down, upper recess, the lower folding is arranged in the upper folding joint bottom margin
Splice overhead edge setting lower concave part, and the card convex block can cooperate in insertion upper recess and lower concave part.
The beneficial effect of self-locking mechanism and folding joint disclosed by the invention is: elastic component presses latch segment in eccentric group
The periphery of part, handle rotation, forces the latch segment in handle runner to slide on the periphery of offset assembly, slides into card slot
When, latch segment protrudes into card slot under resilient element urges from the latch segment of locking bolt, and handle can not reversely rotate at this time, realizes lock
Tightly；When unlock, overcomes elastic component elastic force that latch segment to moving up, until it is detached from card slot, then is rotated backward handle, complete unlock；
Since the elastic component of latch segment is located in sliding slot, working environment relative closure, external sundries is not easily accessible, reliability
It is higher.And latch segment protrudes into after card slot completes locking action, the rotation of handle be locked block and card slot it is mechanical engage limited,
The elastic force of elastic component is only used for compressing latch segment to avoid latch segment disengaging card slot at this time, does not limit turning for handle directly
It is dynamic, therefore the reliable lock of handle, safety are good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of self-locking mechanism of the present invention.
Fig. 2 is the explosive view of self-locking mechanism of the present invention.
Fig. 3 is the structural schematic diagram of folding joint of the present invention.
Fig. 4 is the explosive view of folding joint of the present invention.
Specific embodiment
The present invention is further elaborated and is illustrated with Figure of description combined with specific embodiments below:
Please refer to Fig. 1 and Fig. 2, a kind of self-locking mechanism, including handle 10, offset assembly 20 and from locking bolt 30.
10 one end of handle opens up groove 11, which opens up sliding slot 12.12 one end communication groove 11 of sliding slot, relatively
The other end along 10 length direction of handle extend a preset length.
Offset assembly 20 is rotatably set in groove 11, and the periphery 26 of offset assembly 20 opens up a card slot 21.
Referring to FIG. 2, offset assembly 20 includes pin shaft 22, eccentric block 23, positioning pin 24 and ratchet connecting rod 25.Wherein,
Pin shaft 22 is laterally threaded through on the groove 11 of handle 10.Eccentric block 23 is set in groove 11 and is passed through by pin shaft 22, the eccentric block
23 with 22 eccentric setting of pin shaft.Positioning pin 24 connects eccentric block 23 and handle 10.Ratchet connecting rod 25 includes being movably set in bias
The ratchet portion 251 of block 23 and the link rod part 252 for connecting ratchet portion 251, card slot 21 are provided with the periphery 26 in ratchet portion 251.
Wherein, eccentric block 23 is rounded, and 251 inner wall of ratchet portion is fitted on eccentric block 23, when eccentric block 23 follows handle
When 10 rotation, ratchet portion 251 is not rotated, and can only shift.Gradient thickness between 251 inner wall of ratchet portion and outer wall,
It is maximum to 251 thickness of ratchet portion opened up at card slot 21, so as to improve the depth of card slot 21, and then improve the card slot 21 and locking
The reliability that block 31 cooperates.
Be set in sliding slot 12 from locking bolt 30 and along the chute 12 length directions slidably, from locking bolt 30 include latch segment 31 with
And elastic component 32, latch segment 31 are connected to the periphery 26 of offset assembly 20, elastic component 32 provides latch segment 31 and presses in eccentric group
The power of the periphery 26 of part 20.Latch segment 31 is pressed the periphery 26 in offset assembly 20 by elastic component 32, and handle 10 rotates, forces and set
It is slided on the periphery 26 of offset assembly 20 in the latch segment 31 in 10 sliding slot 12 of handle, when sliding into card slot 21, latch segment 31
It is protruded into card slot 21 under the promotion of elastic component 32 from the latch segment 31 of locking bolt 30, handle 10 can not reversely rotate at this time, realize
Locking.When unlock, overcome 32 elastic force of elastic component that latch segment 31 to moving up, until it is detached from card slot 21, then is rotated backward handle 10,
Complete unlock.
It further include guide part 33 from locking bolt 30.The accommodation groove 311 of bar shaped is opened up in the middle part of latch segment 31.33 one end of guide part is solid
Due to sliding slot 12, the other end extends and protrudes into accommodation groove 311, and the guide part 33 and accommodation groove 311 cooperate to guide latch segment
31 glide direction.Wherein, guide part 33 is at least spaced two groups of setting, to guide the sliding of latch segment 31, it is avoided to slide
It is swung in journey.In the present embodiment, which is through slot.The guide part 33 is screw, and 33 one end of guide part is set to hand
On the outside of handle 10, the outer wall of 12 side of sliding slot is worn under the other end, is fastened on 12 other side outer wall of sliding slot after continuing across accommodation groove 311
On.
Elastic component 32 is set in accommodation groove 311, preferably spring.One end of elastic component 32 abuts guide part 33, the other end
Abut 311 inner wall of accommodation groove.Preferably, the opposite sides of 311 inner wall of accommodation groove shrinks to form closing in 312,32 one end of elastic component
It is connected to one group of guide part 33,32 other end of elastic component is connected to 312 sides of closing up.Another group of guide part 33 is set to and is closed up
312 other sides, the distance between two groups of guide parts 33 relatively far away from, can further avoid in 31 sliding process of latch segment at this time
It swings.
12 inner wall of sliding slot opens up the window 121 of a bar shaped, and prominent formed of 31 side side wall of latch segment stretches out in window 121
Shifting block portion 311 is lifted up latch segment 31 by holding the shifting block portion 311 when unlock.The opposite another side wall of latch segment 31
Bottom is prominent to form the fastening block part 312 being harmonious with card slot 21, and when locking, which is harmonious by the fastening block part 312 with card slot 21, abuts reality
It is existing.The fastening block part 312 reduces the whole materials of latch segment 31.
Latch segment 31 is pressed the periphery 26 in offset assembly 20, handle by self-locking mechanism disclosed by the invention, elastic component 32
10 rotations, force the latch segment 31 in 10 sliding slot 12 of handle to slide on the periphery 26 of offset assembly 20, slide into card slot
When 21, latch segment 31 is protruded into card slot 21 under the promotion of elastic component 32 from the latch segment 31 of locking bolt 30, and handle 10 can not be anti-at this time
To rotation, locking is realized；When unlock, overcome 32 elastic force of elastic component by latch segment 31 to moving up, until it is detached from card slot 21, then instead
To rotational handle 10, unlock is completed.
Since the elastic component 32 of latch segment 31 is located in sliding slot 12, working environment relative closure, external sundries is not easily accessible,
Reliability is higher.And latch segment 31 protrudes into after card slot 21 completes locking action, the rotation of handle 10 is locked block 31 and card slot 21
Mechanical engaging limited, the elastic force of elastic component 32 is only used for compressing latch segment 31 to avoid the disengaging card slot of latch segment 31 at this time
21, the rotation of handle 10 is not limited directly, therefore the reliable lock of handle 10, safety are good.
Fig. 3 and Fig. 4 are please referred to, invention additionally discloses a kind of folding joints, including self-locking mechanism 100, upper folding joint
200, lower folding joint 300 and retaining mechanism 400, upper 200 side of the folding joint side opposite with lower folding joint 300 are living
Dynamic hinged, retaining mechanism 400 is for locking 200 other side of folding joint and lower 300 other side of folding joint.
Self-locking mechanism 100 includes handle 10, offset assembly 20, from locking bolt 30, and handle 10 is articulated with lower folding joint 300.
Referring to FIG. 2, offset assembly 20 includes pin shaft 22, eccentric block 23, positioning pin 24 and ratchet connecting rod 25.Wherein,
Pin shaft 22 is laterally threaded through on the groove 11 and lower folding joint 300 of handle 10.Eccentric block 23 is set in groove 11 and by pin shaft
22 pass through, the eccentric block 23 and 22 eccentric setting of pin shaft.Positioning pin 24 connects eccentric block 23 and handle 10.Ratchet connecting rod 25 includes
It is movably set in the ratchet portion 251 of eccentric block 23 and connects the link rod part 252 in ratchet portion 251, card slot 21 is provided with ratchet portion
251 periphery 26.
Wherein, eccentric block 23 is rounded, and 251 inner wall of ratchet portion is fitted on eccentric block 23, when eccentric block 23 follows handle
When 10 rotation, ratchet portion 251 is not rotated, and can only shift.Gradient thickness between 251 inner wall of ratchet portion and outer wall,
It is maximum to 251 thickness of ratchet portion opened up at card slot 21, so as to improve the depth of card slot 21, and then improve the card slot 21 and locking
The reliability that block 31 cooperates.
Fig. 3 and Fig. 4 are please referred to, retaining mechanism 400 is set to link rod part 252 far from 251 one end of ratchet portion, including vee-block
410.The end face of vee-block 410 is equipped with a pair of of card convex block 411 of protrusion side by side up and down, in the setting of upper 200 bottom margin of folding joint
Recess portion 210, lower 300 top edge of folding joint are arranged lower concave part 310, and card convex block 411 can cooperate insertion upper recess 210 and recessed
In portion 310.
Please refer to Fig. 2, Fig. 3 and Fig. 4, make handle 10 around pin shaft 22 rotate, positioning pin 24 and connection positioning pin 24 it is inclined
Heart block 23 follows rotation, and due to opposite 22 eccentric setting of pin shaft of eccentric block 23, the center of its own in the rotation of eccentric block 23 occurs
Displacement, so that being set to the ratchet portion 251 outside it, the link rod part 252 in connection ratchet portion 251 and vee-block 410 occurs position
It moves.When vee-block 410 is towards close to upper folding joint 200, the movement of 300 side of lower folding joint, the cooperation insertion of card convex block 411
In upper recess 210 and lower concave part 310, upper folding joint 200 is clamped locked with lower folding joint 300 at this time.When vee-block 410
Be directed away from folding joint 200,300 side of lower folding joint it is mobile when, card convex block 411 is from upper recess 210 and lower concave part 310
Middle separation, upper folding joint 200 can be rotated with lower folding joint 300 relative to pin shaft 22 at this time.
Finally it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, rather than the present invention is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the present invention, those skilled in the art are answered
Work as understanding, it can be with modification or equivalent replacement of the technical solution of the present invention are made, without departing from the reality of technical solution of the present invention
Matter and range.
Claims (10)
1. a kind of self-locking mechanism characterized by comprising
Handle, one end open up groove, and the groove inner wall opens up sliding slot；
Offset assembly is rotatably set in groove, and the periphery of the offset assembly opens up a card slot；And
From locking bolt, be set in sliding slot and along the chute length direction slidably, it is described from locking bolt include latch segment and elastic component,
The latch segment is connected to the periphery of offset assembly, and the elastic component provides latch segment and presses in the power of the periphery of offset assembly；
The handle is rotated, described to follow handle to rotate from locking bolt, when turning to the card slot, the latch segment is pushed away in elastic component
In dynamic lower insertion card slot, the handle is locked.
2. self-locking mechanism as described in claim 1, which is characterized in that open up the accommodation groove of bar shaped in the middle part of the latch segment；
Described from locking bolt further includes guide part, and sliding slot is fixed in described guide part one end, and the other end extends and protrudes into accommodation groove,
The guide part and accommodation groove cooperation guide the glide direction of the latch segment.
3. self-locking mechanism as claimed in claim 2, which is characterized in that the elastic component is set in accommodation groove, the elastic component
One end abut the guide part, the other end abuts the accommodation groove inner wall.
4. self-locking mechanism as claimed in claim 3, which is characterized in that shrink shape in the middle part of the opposite sides of the accommodation groove inner wall
At closing in, the elastic component other end is connected at closing in.
5. such as the described in any item self-locking mechanisms of claim 2-4, which is characterized in that the guide part is at least spaced setting two
Group.
6. self-locking mechanism as claimed in claim 5, which is characterized in that the sliding slot inner wall opens up the window of a bar shaped, described
Side wall protrusion in latch segment side forms the shifting block portion for stretching out in window.
7. self-locking mechanism as claimed in claim 6, which is characterized in that the opposite another side wall of the latch segment is prominent formed with
The fastening block part that card slot is harmonious.
8. a kind of folding joint, which is characterized in that connect including such as described in any item self-locking mechanisms of claim 1-7, upper folding
Head, lower folding joint and retaining mechanism, the upper folding joint and lower folding joint are movably hinged, and the retaining mechanism is used for
Folding joint and lower folding joint in locking；
The self-locking mechanism includes handle, offset assembly, from locking bolt, and the handle is articulated with lower folding joint.
9. folding joint as claimed in claim 8, which is characterized in that the offset assembly includes:
Pin shaft is laterally threaded through on the groove and lower folding joint of the handle；
Eccentric block, be set to the groove in, and with the pin shaft eccentric setting；
Positioning pin connects the eccentric block and handle；And
Ratchet connecting rod, it is described including being movably set in the ratchet portion of the eccentric block and the link rod part in the connection ratchet portion
Card slot is provided with the periphery in the ratchet portion；
Rotate the handle around pin shaft, the eccentric block follows pin shaft to rotate, and the eccentric block center of rotation is displaced with band
The ratchet portion is moved to be subjected to displacement with link rod part.
10. folding joint as claimed in claim 9, which is characterized in that the retaining mechanism is set to link rod part far from ratchet portion
One end, including vee-block；
The end face of the vee-block is equipped with a pair of of card convex block of protrusion side by side up and down, in the upper folding joint bottom margin setting
Lower concave part is arranged in recess portion, the lower folding joint top edge, and the card convex block can cooperate in insertion upper recess and lower concave part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652798.0A CN110254583A (en) | 2019-07-19 | 2019-07-19 | Self-locking mechanism and folding joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910652798.0A CN110254583A (en) | 2019-07-19 | 2019-07-19 | Self-locking mechanism and folding joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110254583A true CN110254583A (en) | 2019-09-20 |
Family
ID=67927176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910652798.0A Pending CN110254583A (en) | 2019-07-19 | 2019-07-19 | Self-locking mechanism and folding joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110254583A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115402452A (en) * | 2021-05-28 | 2022-11-29 | 湖北理晟环保设备科技股份有限公司 | Folding joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6581492B1 (en) * | 2002-01-28 | 2003-06-24 | Far Great Plastics Industrial Co., Ltd. | Handle folding structure for a foldable bicycle |
| CN201351647Y (en) * | 2008-12-30 | 2009-11-25 | 珠海市春秋光学仪器有限公司 | Fast locking eccentric handle device with lock |
| CN101968333A (en) * | 2010-08-31 | 2011-02-09 | 珠海市春秋光学仪器有限公司 | Eccentric handle device |
| CN102152829A (en) * | 2011-03-09 | 2011-08-17 | 李天堂 | Bicycle folding fastener |
| CN103471460A (en) * | 2013-08-22 | 2013-12-25 | 广州博冠光电科技股份有限公司 | Fast-locking anti-loosening locking device |
| CN205661612U (en) * | 2016-06-01 | 2016-10-26 | 黄华平 | Folding joint with auto -lock release mechanism |
| CN106672142A (en) * | 2017-01-09 | 2017-05-17 | 王兴宝 | Automatic safe folder locking device |
| CN210364211U (en) * | 2019-07-19 | 2020-04-21 | 深圳市志宏金属制品有限公司 | Self-locking mechanism and folding joint |
-
2019
- 2019-07-19 CN CN201910652798.0A patent/CN110254583A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6581492B1 (en) * | 2002-01-28 | 2003-06-24 | Far Great Plastics Industrial Co., Ltd. | Handle folding structure for a foldable bicycle |
| CN201351647Y (en) * | 2008-12-30 | 2009-11-25 | 珠海市春秋光学仪器有限公司 | Fast locking eccentric handle device with lock |
| CN101968333A (en) * | 2010-08-31 | 2011-02-09 | 珠海市春秋光学仪器有限公司 | Eccentric handle device |
| CN102152829A (en) * | 2011-03-09 | 2011-08-17 | 李天堂 | Bicycle folding fastener |
| CN103471460A (en) * | 2013-08-22 | 2013-12-25 | 广州博冠光电科技股份有限公司 | Fast-locking anti-loosening locking device |
| CN205661612U (en) * | 2016-06-01 | 2016-10-26 | 黄华平 | Folding joint with auto -lock release mechanism |
| CN106672142A (en) * | 2017-01-09 | 2017-05-17 | 王兴宝 | Automatic safe folder locking device |
| CN210364211U (en) * | 2019-07-19 | 2020-04-21 | 深圳市志宏金属制品有限公司 | Self-locking mechanism and folding joint |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115402452A (en) * | 2021-05-28 | 2022-11-29 | 湖北理晟环保设备科技股份有限公司 | Folding joint |
| CN115402452B (en) * | 2021-05-28 | 2023-11-28 | 湖北理晟环保设备科技股份有限公司 | Folding joint |
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