CN110219883A - Rotation positioning device and rehabilitation training of upper limbs system - Google Patents
Rotation positioning device and rehabilitation training of upper limbs system Download PDFInfo
- Publication number
- CN110219883A CN110219883A CN201910555041.XA CN201910555041A CN110219883A CN 110219883 A CN110219883 A CN 110219883A CN 201910555041 A CN201910555041 A CN 201910555041A CN 110219883 A CN110219883 A CN 110219883A
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- CN
- China
- Prior art keywords
- removable frame
- movable component
- fixation kit
- rotation
- positioning
- Prior art date
- 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.)
- Granted
Links
- 210000001364 upper extremity Anatomy 0.000 title claims abstract description 10
- 230000000295 complement effect Effects 0.000 claims abstract 2
- 229910052802 copper Inorganic materials 0.000 claims description 27
- 239000010949 copper Substances 0.000 claims description 27
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 26
- 210000003734 kidney Anatomy 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000011084 recovery Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 206010044565 Tremor Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H1/00—Apparatus for passive exercising; Vibrating apparatus; Chiropractic devices, e.g. body impacting devices, external devices for briefly extending or aligning unbroken bones
- A61H1/02—Stretching or bending or torsioning apparatus for exercising
- A61H1/0274—Stretching or bending or torsioning apparatus for exercising for the upper limbs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C11/00—Pivots; Pivotal connections
- F16C11/04—Pivotal connections
- F16C11/10—Arrangements for locking
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Pain & Pain Management (AREA)
- Physical Education & Sports Medicine (AREA)
- Rehabilitation Therapy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Rehabilitation Tools (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
The present invention provides a kind of rotation positioning device and rehabilitation training of upper limbs systems, are related to rehabilitation equipment technical field, relatively easy the technical issues of sliding, structural instability occur when solving some rotation positioning devices in the prior art limit.The device includes movable component and fixation kit, wherein, fixation kit includes removable frame, removable frame and movable component plug connection are so that movable component and fixation kit complement each other to form positioning, when forcing in removable frame makes removable frame that connection of the movement to release removable frame and movable component occur, movable component and fixation kit are rotatablely connected.The present invention can be used in rehabilitation equipment.
Description
Technical field
The present invention relates to rehabilitation equipment technical fields, fixed more particularly, to a kind of rotation to adjust upper limb posture
Position mechanism and the rehabilitation training of upper limbs system for being provided with the rotation positioning device.
Background technique
There are two types of current existing upper limb training institution is general: one is recovery training appliance for recovery, recovery training appliance for recovery generally can be with
Carry out the rehabilitation training in body single joint or multiple joints；There are also one is the recovery exercising robots of exoskeleton-type.Rehabilitation
Training aids training freedom degree is low, it is sometimes desirable to the instruction in other joints is carried out by replacement training group component and adjustment equipment posture
Practice.
Applicants have discovered that at least there is following technical problem in the prior art:
Existing rotation positioning device is difficult to apply on recovery training appliance for recovery, to be used to avoid recovery training appliance for recovery training freely
Spend relatively low situation；And rotation positioning device is limited by the way of friction, it is possible that sliding, structure shakiness
Fixed situation.
Summary of the invention
The purpose of the present invention is to provide a kind of rotation positioning device and rehabilitation training of upper limbs systems, solve the prior art
In the limit of some rotation positioning devices when, it is relatively easy the technical issues of sliding, structural instability occur.It is provided by the invention
Many technical effects elaboration as detailed below that optimal technical scheme in many technical solutions can be generated.
To achieve the above object, the present invention provides following technical schemes:
A kind of rotation positioning device provided by the invention, including movable component and fixation kit, wherein the fixation kit
Including removable frame, the removable frame and the movable component plug connection are so that the movable component and the fixation
Component complements each other to form positioning, force in the removable frame make the removable frame that movement occur with release it is described can
When the connection of moving structure and the movable component, the movable component and the fixation kit are rotatablely connected.
Preferably, the removable frame includes positioning pin, and the movable component includes location hole, the positioning pin and institute
Location hole is stated to match；The location hole is distributed in the circumferential direction of the movable component.
Preferably, it is provided with limit hole on the fixation kit, the removable frame is inserted into the limit hole and described
Limit hole limits axis direction of the removable frame only along the removable frame and moves.
Preferably, the limit hole is kidney slot.
Preferably, the fixed structure includes hatchcover, and the removable frame passes through the hatchcover, the removable frame
It protrudes on the part of the hatchcover and is provided with position limiting structure, be folded with elastic component between the hatchcover and the position limiting structure, when
When the removable frame is mobile to the direction far from the movable component, the elastic component is in compressive state.
Preferably, the movable component includes positioning plate and the rotation axis that is arranged in below the positioning plate, the positioning
Plate and the rotation axis protrude into the fixation kit, the positioning plate and the rotation axis be stuck on the fixation kit and
The two can rotate relative to the fixation kit, and the positioning plate is connected with the rotation axis, the removable frame
It can protrude into the positioning plate.
Preferably, the fixation kit includes cylinder and copper sheathing, the copper be set in the cylinder and with the cylinder
Body is connected, and the rotation axis is in contact with the copper sheathing and after the removable frame and the positioning plate unlock,
The copper sheathing and the rotation axis are rotatablely connected, and the positioning plate is supported on the end face of the copper sheathing.
Preferably, the fixation kit further includes locating ring and fixed plate, and the fixed plate is arranged under the cylinder
Side and the two is connected, is provided with stepped hole and the copper sheathing is located in the stepped hole, the locating ring is set on the cylinder
Set the copper sheathing lower section and the copper sheathing and the locating ring it is clamping in the fixed plate and the level of the stepped hole
Between end face.
Preferably, the movable component includes rotor plate, and the lower section of fixation kit, the rotation is arranged in the rotor plate
Axis protrudes into the rotor plate, and the circumferential direction of the rotation axis is provided with to the company extended far from the rotation axis center position
Socket part, is provided with stepped hole on the rotor plate and the connecting portion is in the stepped hole, the interconnecting piece with described turn
Movable plate is connected.
A kind of rehabilitation training of upper limbs system, including the rotation positioning device.
The rotation positioning device of offer of the invention, removable frame and movable component plug connection so that movable component with
Fixation kit complements each other to form positioning, and the positioning of movable component and fixation kit is realized by way of plug connection, positioning
Structure afterwards is relatively more more stable, when solving some rotation positioning devices in the prior art limit, relatively easily slides
The technical issues of dynamic, structural instability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic cross-sectional view of rotation positioning device provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of hatchcover and cylinder provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of removable frame provided in an embodiment of the present invention；
Fig. 4 is the structural schematic diagram of rotation axis provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of positioning plate provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram that rotation positioning device provided in an embodiment of the present invention is in original state；
Fig. 7 is the structural schematic diagram that the movable component of rotation positioning device provided in an embodiment of the present invention unlocks；
Fig. 8 is that the movable component of rotation positioning device provided in an embodiment of the present invention rotates relative to fixation kit
Structural schematic diagram；
Fig. 9 is that the removable frame automatic rebounding of rotation positioning device provided in an embodiment of the present invention locks movable component
Structural schematic diagram.
1- removable frame in figure；11- positioning pin；12- position limiting structure；13- elastic component；14- bearing pin mounting hole；2- activity
Component；21- location hole；22- positioning plate；23- rotation axis；24- rotor plate；25- interconnecting piece；26- positioning plate mounting hole；3- limit
Hole；4- hatchcover；5- cylinder；6- copper sheathing；7- locating ring；8- fixed plate.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Referring to Fig. 1-Fig. 9, the present invention provides a kind of rotation positioning device, including movable component 2 and fixation kit,
In, fixation kit includes removable frame 1, removable frame 1 and 2 plug connection of movable component so that movable component 2 and fixation
Component complements each other to form positioning, and forcing in removable frame 1 makes removable frame 1 that movement occur to release removable frame 1
When with the connection of movable component 2, movable component 2 and fixation kit are rotatablely connected.When removable frame 1 and 2 grafting of movable component
Connection, movable component 2 are locked on fixation kit, i.e., movable component 2 will not rotate relative to fixation kit；When movement can
Moving structure 1 releases the connection of movable-component 1 and movable component, and movable component 2 can rotate relative to fixation kit；This
The rotation positioning device provided is provided, the positioning of movable component 2 Yu fixation kit is realized by way of plug connection, relative to
Some rotation positioning devices in the prior art are positioned by using the mode of friction, and the structure after locking is relatively more stable
A bit.
As the embodiment of the present invention, optionally embodiment, removable frame 1 include positioning pin 11, and movable component 2 includes
Location hole 21, positioning pin 11 are matched with location hole 21；Location hole 21 is distributed in the circumferential direction of movable component 2.Referring to figure
3, can be set bearing pin mounting hole 14 on removable frame 1, positioning pin 11 be inserted into corresponding bearing pin mounting hole 14 and positioning pin
11 are interference fitted with bearing pin mounting hole 14, to realize being fixedly connected for positioning pin 11 and bearing pin mounting hole 14, positioning pin 11 it is a
Number can be for two and symmetrical in the circumferential direction of movable-component 1；Referring to Fig. 5, the number of location hole 21 can be
It four and is uniformly distributed in the circumferential direction of movable component 2, positioning pin 11 can be matched from different location holes 21, with reality
Existing movable-component 1 is inserted into movable component 2.In addition it is also possible to which movable component 2 is inserted into movable-component 1.
As optionally embodiment of the embodiment of the present invention, limit hole 3 is provided on fixation kit, removable frame 1 is inserted
Enter limit hole 3 and limit hole 3 limits axis direction of the removable frame 1 only along removable frame 1 and moves.Limit hole 3 can
Think kidney slot, or the hole of other shapes is only capable of moving along its axis direction to limit removable frame 1.
As the embodiment of the present invention, optionally embodiment, fixed structure include hatchcover 4, and removable frame 1 passes through hatchcover
4, removable frame 1 protrudes on the part of hatchcover 4 and is provided with position limiting structure 12, is folded with bullet between hatchcover 4 and position limiting structure 12
Property part 13, when mobile to the direction far from movable component 2 when removable frame 1, elastic component 13 is in compressive state.Referring to Fig. 1,
Elastic component 13 removable frame 1 to be fixed on hatchcover 4, when need removable frame 1 to far from movable component 2 direction
When mobile, the external force for being applied to removable frame 1 needs to overcome the elastic force of elastic component 13；Removable frame 1 is in the work by external force
It is mobile when removable frame 1 is detached from movable component 2 with the lower direction to separate movable component 2, after rotating suitable angle,
Cancel external force, removable frame 1 resets under the action of elastic component 13.Elastic component 13 can be spring, be set in removable knot
On structure 1.
As the embodiment of the present invention, optionally embodiment, movable component 2 include positioning plate 22 and are arranged in positioning plate 22
The rotation axis 23 of lower section, positioning plate 22 and rotation axis 23 protrude into fixation kit, and positioning plate 22 and rotation axis 23 are stuck in fixation
On component and the two can rotate relative to fixation kit, and positioning plate 22 is connected with rotation axis 23, and removable frame 1 can be stretched
Enter in positioning plate 22.Referring to Fig. 1, Fig. 4 and Fig. 5, rotation axis 23 can be to be detachably connected with positioning plate 22, referring to Fig. 5, positioning
Positioning plate mounting hole 26 is provided on plate 22, connector can pass through positioning plate mounting hole 26 and be connected with rotation axis 23；Positioning
Location hole 21 is provided on plate 22, the positioning pin 11 on removable frame 1 can be inserted into the location hole 21 on positioning plate 22.
As the embodiment of the present invention, optionally embodiment, fixation kit include cylinder 5 and copper sheathing 6, and copper sheathing 6 is arranged in cylinder
It is connected in body 5 and with cylinder 5, rotation axis 23 is in contact with copper sheathing 6 and when removable frame 1 unlocks with positioning plate 22
Afterwards, copper sheathing 6 and rotation axis 23 are rotatablely connected, and positioning plate 22 is supported on the end face of copper sheathing 6.Referring to Fig. 1, positioning plate 22 is supported on
On copper sheathing 6, with limit positioning plate 22 and rotation axis 23 in the axial direction on move down.
As optionally embodiment of the embodiment of the present invention, referring to Fig. 1, fixation kit further includes locating ring 7 and fixed plate
8, the lower section of cylinder 5 is arranged in fixed plate 8 and the two is connected, and stepped hole is provided on cylinder 5 and copper sheathing 6 is located at stepped hole
Interior, the lower section of copper sheathing 6 and copper sheathing 6 is arranged in locating ring 7 and locating ring 7 is clamping in fixed plate 8 and the horizontal end face of stepped hole
Between, copper sheathing 6 is fixed on cylinder 5 with realizing.
As the embodiment of the present invention, optionally embodiment, movable component 2 include rotor plate 24, and the setting of rotor plate 24 is solid
Determine the lower section of component, rotation axis 23 protrudes into rotor plate 24, and the circumferential direction of rotation axis 23 is provided with to far from rotation axis 23
The interconnecting piece 25 that heart direction extends is provided with stepped hole on rotor plate 24 and interconnecting piece 25 is located in stepped hole, interconnecting piece 25 and
Rotor plate 24 is connected.Rotor plate 24 can limit rotation axis 23 and positioning plate 22 in the axial direction on move up；Rotor plate
24 can be connect using sunk screw with interconnecting piece 25, in order to avoid between rotor plate 24 and rotation axis 23 connector and fixation
Interference between plate 8.
A kind of rehabilitation training of upper limbs system, including rotation positioning device.The rotor plate 24 of rotation positioning device and fixation
Plate 8 can connect two different components, to realize the rotation connection of this two different components.
The operating process of rotation positioning device provided by the invention is as follows:
Referring to Fig. 6, rotation positioning device at this time is in original state, and rotor plate 24 is mutually perpendicular to fixed plate 8；Upwards
Lift removable frame 1, referring to Fig. 7, to release locking of the movable mechanism 1 to movable component 2；Movable component 2 is rotated, until
Rotor plate 24 is parallel to each other with fixed plate 8, referring to Fig. 8；Cancel the external force applied, effect of the removable frame 1 in elastic component 13
Under automatically reset, at this point, removable frame 1 locks movable component 2.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of rotation positioning device, which is characterized in that including movable component (2) and fixation kit, wherein
The fixation kit includes removable frame (1), the removable frame (1) and the movable component (2) plug connection
So that the movable component (2) and the fixation kit complement each other to form positioning, forcing in the removable frame (1) makes institute
It is described when stating connection of removable frame (1) generation movement to release the removable frame (1) and the movable component (2)
Movable component (2) and the fixation kit are rotatablely connected.
2. rotation positioning device according to claim 1, which is characterized in that the removable frame (1) includes positioning pin
(11), the movable component (2) includes location hole (21), and the positioning pin (11) matches with the location hole (21)；It is described
Location hole (21) is distributed in the circumferential direction of the movable component (2).
3. rotation positioning device described in any one of -2 according to claim 1, which is characterized in that be arranged on the fixation kit
Have limit hole (3), the removable frame (1) is inserted into the limit hole (3) and the limit hole (3) limits the removable knot
Axis direction of the structure (1) only along the removable frame (1) moves.
4. rotation positioning device according to claim 3, which is characterized in that the limit hole (3) is kidney slot.
5. rotation positioning device according to claim 1, which is characterized in that the fixed structure includes hatchcover (4), described
Removable frame (1) passes through the hatchcover (4), the removable frame (1) protrude on the parts of the hatchcover (4) be arranged it is limited
Bit architecture (12) is folded with elastic component (13), when the removable frame between the hatchcover (4) and the position limiting structure (12)
(1) when mobile to the direction far from the movable component (2), the elastic component (13) is in compressive state.
6. rotation positioning device according to claim 1, which is characterized in that the movable component (2) includes positioning plate
(22) and rotation axis (23) below the positioning plate (22) is set, the positioning plate (22) and the rotation axis (23) are stretched
Enter the fixation kit, the positioning plate (22) and the rotation axis (23) are stuck on the fixation kit and the two can be opposite
It rotates in the fixation kit, the positioning plate (22) is connected with the rotation axis (23), the removable frame (1)
It can protrude into the positioning plate (22).
7. rotation positioning device according to claim 6, which is characterized in that the fixation kit includes cylinder (5) and copper
It covers (6), copper sheathing (6) setting is connected in the cylinder (5) and with the cylinder (5), the rotation axis (23) and institute
Copper sheathing (6) is stated to be in contact and after the removable frame (1) and the positioning plate (22) unlock, the copper sheathing (6) with
Rotation axis (23) rotation connection, the positioning plate (22) are supported on the end face of the copper sheathing (6).
8. rotation positioning device according to claim 7, which is characterized in that the fixation kit further includes locating ring (7)
With fixed plate (8), the fixed plate (8) setting the cylinder (5) lower section and the two be connected, set on the cylinder (5)
It is equipped with stepped hole and the copper sheathing (6) is located in the stepped hole, lower section of locating ring (7) setting in the copper sheathing (6)
And the copper sheathing (6) and the locating ring (7) are clamping between the fixed plate (8) and the horizontal end face of the stepped hole.
9. rotation positioning device according to claim 6, which is characterized in that the movable component (2) includes rotor plate
(24), the lower section of fixation kit is arranged in the rotor plate (24), and the rotation axis (23) is protruded into the rotor plate (24), institute
The circumferential direction for stating rotation axis (23) is provided with to the interconnecting piece (25) extended far from the rotation axis (23) center position, described
Be provided with stepped hole on rotor plate (24) and the interconnecting piece (25) be located in the stepped hole, the interconnecting piece (25) with it is described
Rotor plate (24) is connected.
10. a kind of rehabilitation training of upper limbs system, which is characterized in that including rotational positioning of any of claims 1-9
Mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555041.XA CN110219883B (en) | 2019-06-25 | 2019-06-25 | Rotary positioning mechanism and upper limb rehabilitation training system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910555041.XA CN110219883B (en) | 2019-06-25 | 2019-06-25 | Rotary positioning mechanism and upper limb rehabilitation training system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110219883A true CN110219883A (en) | 2019-09-10 |
| CN110219883B CN110219883B (en) | 2020-12-01 |
Family
ID=67814547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910555041.XA Active CN110219883B (en) | 2019-06-25 | 2019-06-25 | Rotary positioning mechanism and upper limb rehabilitation training system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110219883B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694818A (en) * | 1995-12-11 | 1997-12-09 | Nickipuck; Michael F. | Locking joint for a ratchet wrench |
| CN101205946A (en) * | 2006-12-15 | 2008-06-25 | 岩崎精机股份有限公司 | Hinge mechanism |
| CN101209738A (en) * | 2007-12-25 | 2008-07-02 | 宁波翔鹰车业有限公司 | Folding device |
| CN101431548A (en) * | 2008-11-12 | 2009-05-13 | 上海德门电子科技有限公司 | Double-turning shaft apparatus used for mobile phone |
| CN101535663A (en) * | 2006-11-06 | 2009-09-16 | 三菱制钢株式会社 | Hinge mechanism |
-
2019
- 2019-06-25 CN CN201910555041.XA patent/CN110219883B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5694818A (en) * | 1995-12-11 | 1997-12-09 | Nickipuck; Michael F. | Locking joint for a ratchet wrench |
| CN101535663A (en) * | 2006-11-06 | 2009-09-16 | 三菱制钢株式会社 | Hinge mechanism |
| CN101205946A (en) * | 2006-12-15 | 2008-06-25 | 岩崎精机股份有限公司 | Hinge mechanism |
| CN101209738A (en) * | 2007-12-25 | 2008-07-02 | 宁波翔鹰车业有限公司 | Folding device |
| CN101431548A (en) * | 2008-11-12 | 2009-05-13 | 上海德门电子科技有限公司 | Double-turning shaft apparatus used for mobile phone |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110219883B (en) | 2020-12-01 |
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