CN108412892A - A kind of same dynamic laptop pivot structure of twin shaft - Google Patents
A kind of same dynamic laptop pivot structure of twin shaft Download PDFInfo
- Publication number
- CN108412892A CN108412892A CN201810443190.2A CN201810443190A CN108412892A CN 108412892 A CN108412892 A CN 108412892A CN 201810443190 A CN201810443190 A CN 201810443190A CN 108412892 A CN108412892 A CN 108412892A
- Authority
- CN
- China
- Prior art keywords
- bolster
- shaft
- sleeve
- rotating shaft
- axle sleeve
- 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.)
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Classifications
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The invention discloses a kind of twin shafts with dynamic laptop pivot structure, including：Torsion mechanism includes the first clad type bolster and the second clad type bolster, and the first clad type bolster includes connected the first axle sleeve and the first bolster ontology, and the second clad type bolster includes connected the second axle sleeve and the second bolster ontology.Screen end bolster is connected with the first bolster ontology.System end bolster is connected with the second bolster ontology.First sleeve is connected with screen end bolster.Second sleeve is connected with system end bolster.One end of first rotating shaft sequentially passes through the first sleeve and the first axle sleeve, and first rotating shaft is interference fitted with the first axle sleeve.One end of second shaft sequentially passes through second sleeve and the second axle sleeve, and the second shaft is interference fitted with the second axle sleeve, and the other end of the second shaft is connected by synchronous drive mechanism with the other end of first rotating shaft.The present invention has the advantages that axial length and thickness are smaller, can adapt to the lightening trend of laptop.
Description
Technical field
The present invention relates to electronic fields, and in particular to a kind of same dynamic laptop pivot structure of twin shaft.
Background technology
Laptop mainly by the display end (i.e. the display screen of laptop) that can open or close opposite to each other and
System end (i.e. the ontology of laptop) is formed, and display end and system end are held with default on pivot structure relatively respectively
Frame connects, and display end thus can be that action axle center carries out opening and closing movement with pivot structure with system end.Twin shaft used in general
When mainly moving a wherein shaft rotation with turn axle construction, another axis can synchronize rotation.Due to this class of electronic devices in use,
One end must be made to open to be conveniently operated to set angle, therefore, twin shaft generally has to that relevant torsion is arranged with turn axle construction
Mechanism reaches the function of positioning, meanwhile, to reach twin shaft with dynamic function, it is necessary to Synchronous Transmission machine be arranged on pivot structure
Structure.
Existing such twin shaft is passed in turn axle construction to form the torsion mechanism of required pivot structure torsion and synchronize
Motivation structure is substantially provided in combine the bolster homonymy of display end and system end, i.e. torsion mechanism and synchronous drive mechanism
It is to be composed in the same side sequential of bolster, and existing twin shaft is mostly torsion with torsion mechanism in turn axle construction
The compositions such as piece, spring, therefore, such pivot structure have larger axial length and thickness, and it is same that this allows for existing twin shaft
Turn axle construction is difficult to adapt to the lightening trend of laptop.
Therefore, it is necessary to propose a kind of new technical solution.
Invention content
The present invention proposes a kind of same dynamic laptop pivot structure of twin shaft, solves axial length of the existing technology
The longer and larger problem of thickness.
To achieve the goals above, the technical scheme is that：A kind of same dynamic laptop pivot structure of twin shaft,
Including：
Torsion mechanism, the torsion mechanism include the first clad type bolster and the second clad type bolster, first cladding
Formula bolster includes connected the first axle sleeve and the first bolster ontology, the second clad type bolster include connected the second axle sleeve and
Second bolster ontology offers the notch extended along its own length direction on first axle sleeve and the second axle sleeve respectively.
Screen end bolster, screen end bolster are connected with the first bolster ontology.
System end bolster, the system end bolster are connected with the second bolster ontology.
First sleeve, first sleeve are connected with screen end bolster.
Second sleeve, the second sleeve are connected with the system end bolster.
Synchronous drive mechanism.
One end of first rotating shaft, the first rotating shaft sequentially passes through first sleeve and the first axle sleeve, and described first
Shaft is interference fitted with first axle sleeve.
Second shaft, second shaft are mutually parallel with the first rotating shaft, and one end of second shaft is worn successively
The second sleeve and the second axle sleeve are crossed, and second shaft is interference fitted with second axle sleeve, second shaft
The other end is connected by the synchronous drive mechanism with the other end of the first rotating shaft.
Shell, the shell are wrapped in the outer of the other end of the synchronous drive mechanism and first rotating shaft and the second shaft
Week.
Preferably, the synchronous drive mechanism includes the first transmission gear for engaging connection successively, the first intermediate gear,
Two intermediate gears and the second transmission gear, the first transmission gear upper edge itself is axially offered to be passed through for first rotating shaft
First perforation, first transmission gear are connected with the one end of first sleeve far from first axle sleeve, and described second passes
Moving gear upper edge itself axially offer for the second shaft pass through second perforation, second transmission gear with described second set
The one end of cylinder far from second axle sleeve is connected.
Preferably, further include the detent mechanism being set in the shell, the detent mechanism includes the first positioning seat, second
Positioning seat, the first locating plate and the second locating plate, first sleeve are connected with second sleeve by first locating plate,
First positioning seat is set in the first rotating shaft, and second positioning seat is set in second shaft, and described first is fixed
Bit slice is set to the side of first transmission gear and the second transmission gear, and first positioning seat and the second positioning seat are set to institute
The other side of the first transmission gear and the second transmission gear is stated, first positioning seat and the second positioning seat pass through the second locating plate
It is connected.
Preferably, first positioning seat and the second positioning seat are described including pedestal and the boss on pedestal
The location hole being inserted into for the boss is offered on second locating plate.
Preferably, first intermediate gear and the second intermediate gear respectively include one through the bull stick of its own, institute
The first through hole that one end there are two being opened up on the first locating plate for two bull sticks passes through is stated, is gone back on second locating plate
The second through-hole passed through for the other end of two bull sticks there are two opening up.
Preferably, further include the anti-drop device being respectively arranged in the first rotating shaft and the second shaft, the anti-drop device
The first rotating shaft is located at close to one end of the first clad type bolster and the second shaft close to second clad type
One end of bolster.
Preferably, the anti-drop device is the snap ring on the side wall of first rotating shaft and the second shaft.
Compared with prior art, present invention tool has the advantage that：Twin shaft proposed by the present invention is used with dynamic laptop to be turned
In axle construction, torsion mechanism includes the first clad type bolster and the second clad type bolster, and the first clad type bolster includes connected
First axle sleeve and the first bolster ontology, the second clad type bolster include connected the second axle sleeve and the second bolster ontology, screen end
Bolster is connected with the first bolster ontology.System end bolster is connected with the second bolster ontology.Screen end bolster and the first bolster ontology
It is connected with the screen end of laptop, system end bolster and the second bolster ontology are connected with the system end of laptop, the
One end of one shaft sequentially passes through the first sleeve and the first axle sleeve, and first rotating shaft is interference fitted with the first axle sleeve.Second shaft
One end sequentially pass through second sleeve and the second axle sleeve, and the second shaft is interference fitted with the second axle sleeve.Such first clad type
Bolster was not only connected with the screen end of laptop, but also can generate torsion, and the second clad type bolster was both with laptop
System end is connected, and can generate torsion, and torsion mechanism is located at the two of screen end bolster and system end bolster with synchronous drive mechanism
Side can shorten the axial length of the present invention in this way.In the present invention also whole device is reduced by reducing the thickness of torsion mechanism
Thickness.Therefore, compared with prior art, the present invention has the advantages that axial length is shorter and thickness is smaller, can adapt to take down notes
The lightening trend of this computer.
Description of the drawings
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 technology 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
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural exploded view of the present invention；
Fig. 2 is the structural schematic diagram of the present invention.
In figure：1-shell, 2-first rotating shafts, the 3-the second shaft, 4-torsion mechanisms, 5-screen end bolsters, 6-are
System end bolster, the 7-the first sleeve, 8-second sleeves, 9-synchronous drive mechanisms, 10-detent mechanisms, 11-anti-drop devices,
41-the first clad type bolster, the 42-the second clad type bolster, 43-notches, the 91-the first transmission gear, among 92-the first
Gear, the 93-the second intermediate gear, the 94-the second transmission gear, the 101-the first positioning seat, the 102-the second positioning seat, 103-
First locating plate, the 104-the second locating plate, 105-pedestals, 106-boss, 107-location holes, 108-first through hole,
109-the second through-hole, the 411-the first axle sleeve, the 412-the first bolster ontology, the 421-the second axle sleeve, the 422-the second bolster sheet
Body.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, the same dynamic laptop pivot structure of a kind of twin shaft proposed by the present invention, including：
Torsion mechanism 4, torsion mechanism 4 include the first clad type bolster 41 and the second clad type bolster 42, the first clad type
Bolster 41 includes the first axle sleeve 411 and the first bolster ontology 412 being connected, and the second clad type bolster 42 includes the second axis being connected
Set 421 and the second bolster ontology 422 offer on first axle sleeve 411 and the second axle sleeve 421 and prolong along its own length direction respectively
The notch 43 stretched.First axle sleeve 411 and the second axle sleeve 421 are used to generate torsion during rotating the screen end of laptop
Power, and the first bolster ontology 412 is connected with the screen end of laptop, the second bolster ontology 422 is with laptop
System end is connected.
Screen end bolster 5, screen end bolster 5 are connected with the first bolster ontology 412, and the first bolster ontology 412 and notes
The screen end of this computer is connected, and screen end bolster 5 plays the role of drawing correcting during screen end rotates.
System end bolster 6, system end bolster 6 are connected with the second bolster ontology 422, and the second bolster ontology 422 and notes
The system end of this computer is connected, and system end bolster 6 is also to play the role of drawing correcting during screen end rotates.
First sleeve 7, the first sleeve 7 are connected with screen end bolster 5.The rotation of screen end bolster 5 in this way can drive first
Sleeve 7 rotates.
Second sleeve 8, second sleeve 8 are connected with system end bolster 6.System end bolster 6 and laptop is in this way
After system end is connected, system end bolster 6 and second sleeve 8 are fixed.
Synchronous drive mechanism 9, at the screen end for raising laptop, the rotation of first rotating shaft 2 passes through Synchronous Transmission machine
Structure 9 drives the second rotation 2 to rotate synchronously.
First rotating shaft 2, one end of first rotating shaft 2 sequentially pass through the first sleeve 7 and the first axle sleeve 411, and first rotating shaft 2 with
First axle sleeve 411 is interference fitted.First rotating shaft 2 and the first axle sleeve 411 in this way generates torsion because of interference between the two.
Second shaft 3, the second shaft 3 are mutually parallel with first rotating shaft 2, and one end of the second shaft 3 sequentially passes through second set
Cylinder 8 and the second axle sleeve 421, and the second shaft 3 and the second axle sleeve 421 are interference fitted, the other end of the second shaft 3 is passed by synchronous
Motivation structure 9 is connected with the other end of first rotating shaft 2.3 and second axle sleeve 421 of such second shaft because interference between the two and
Generate torsion.
Shell 1, shell 1 are wrapped in the periphery of the other end of synchronous drive mechanism 9 and first rotating shaft 2 and the second shaft 3.
In the present embodiment, the first clad type bolster 41 was not only connected with the screen end of laptop, but also can generate torsion, the
Two clad type bolsters 42 were not only connected with the system end of laptop, but also can generate torsion, and torsion mechanism 4 and Synchronous Transmission machine
Structure 9 is located at the both sides of screen end bolster and system end bolster, can shorten the axial length of the present embodiment in this way.The present embodiment is also logical
Crossing reduces the thickness of torsion mechanism 4 to reduce the thickness of whole device.
As shown in Figure 1, in the present embodiment, synchronous drive mechanism 9 includes the first transmission gear 91 for engaging connection successively, the
One intermediate gear 92, the second intermediate gear 93 and the second transmission gear 94,91 upper edge of the first transmission gear itself axially open up
There are the first perforation passed through for first rotating shaft 2, the first transmission gear 91 and one end phase of first sleeve 7 far from the first axle sleeve 411
Even, 94 upper edge of the second transmission gear itself axially offers the second perforation passed through for the second shaft 3, the second transmission gear 94 with
The one end of second sleeve 8 far from the second axle sleeve 421 is connected.
As shown in Figure 1, further including the detent mechanism 10 being set in shell 1 in the present embodiment, detent mechanism 10 includes first
Positioning seat 101, the second positioning seat 102, the first locating plate 103 and the second locating plate 104, the first sleeve 7 and second sleeve 8 are logical
It crosses the first locating plate 103 to be connected, the first positioning seat 101 is set in first rotating shaft 2, and the second positioning seat 102 is set to the second shaft 3
On, the first locating plate 103 is set to the side of the first transmission gear 91 and the second transmission gear 94, the first positioning seat 101 and second
Positioning seat 102 is set to the other side of the first transmission gear 91 and the second transmission gear 94, the first positioning seat 101 and the second positioning seat
102 are connected by the second locating plate 104.
As shown in Figure 1, in the present embodiment, the first positioning seat 101 and the second positioning seat 102 include pedestal 105 and set
In offering the location hole 107 being inserted into for boss 106 on the boss 106 on pedestal 105, the second locating plate 104.
As shown in Figure 1, in the present embodiment, the first intermediate gear 92 and the second intermediate gear 93 respectively include one and run through it
The bull stick of itself, opens up that there are two the first through hole 108 that one end for two bull sticks passes through, second is fixed on the first locating plate 103
The second through-hole 109 that the other end of two confessions, two bull sticks passes through is further opened on bit slice 104.
As shown in Figure 1, further include the anti-drop device 11 being respectively arranged in first rotating shaft 2 and the second shaft 3 in the present embodiment,
Anti-drop device 11 is located at first rotating shaft 2 close to one end of the first clad type bolster 41 and the second shaft 3 close to the second cladding
One end of formula bolster 42.For preventing respectively, the first clad type bolster 41 is detached from anti-drop device 11 with first rotating shaft 2 and second wraps
It covers formula bolster 42 and the second shaft 3 is detached from.Anti-drop device 11 can be mounted on first rotating shaft there are many selection, anti-drop device 11
2 and second shaft 3 side wall on snap ring.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention god.
Claims (7)
1. a kind of twin shaft is the same as dynamic laptop pivot structure, which is characterized in that including：
Torsion mechanism (4), the torsion mechanism (4) include the first clad type bolster (41) and the second clad type bolster (42), institute
State the first axle sleeve (411) and the first bolster ontology (412) that the first clad type bolster (41) includes connected, second clad type
Bolster (42) includes connected the second axle sleeve (421) and the second bolster ontology (422), first axle sleeve (411) and the second axis
The notch (43) extended along its own length direction is offered respectively on set (421)；
Screen end bolster (5), screen end bolster (5) are connected with the first bolster ontology (412)；
System end bolster (6), the system end bolster (6) are connected with the second bolster ontology (422)；
First sleeve (7), first sleeve (7) are connected with screen end bolster (5)；
Second sleeve (8), the second sleeve (8) are connected with the system end bolster (6)；
Synchronous drive mechanism (9)；
One end of first rotating shaft (2), the first rotating shaft (2) sequentially passes through first sleeve (7) and the first axle sleeve (411),
And the first rotating shaft (2) is interference fitted with first axle sleeve (411)；
Second shaft (3), second shaft (3) are mutually parallel with the first rotating shaft (2), and the one of second shaft (3)
End sequentially passes through the second sleeve (8) and the second axle sleeve (421), and second shaft (3) and second axle sleeve (421)
Interference fit, the other end of second shaft (3) are another by the synchronous drive mechanism (9) and the first rotating shaft (2)
One end is connected；
Shell (1), the shell (1) are wrapped in the synchronous drive mechanism (9) and first rotating shaft (2) and the second shaft (3)
The other end periphery.
2. twin shaft according to claim 1 is the same as dynamic laptop pivot structure, it is characterised in that：The Synchronous Transmission
Mechanism (9) include engage successively the first transmission gear (91), the first intermediate gear (92), the second intermediate gear (93) of connection with
And second transmission gear (94), the first transmission gear (91) upper edge itself is axially offered to be passed through for first rotating shaft (2)
First perforation, first transmission gear (91) and one end phase of first sleeve (7) far from first axle sleeve (411)
Even, the second transmission gear (94) upper edge itself axially offers second passed through for the second shaft (3) and perforates, and described second
Transmission gear (94) is connected with the one end of the second sleeve (8) far from second axle sleeve (421).
3. twin shaft according to claim 2 is the same as dynamic laptop pivot structure, it is characterised in that：Further include being set to institute
The detent mechanism (10) in shell (1) is stated, the detent mechanism (10) includes the first positioning seat (101), the second positioning seat
(102), the first locating plate (103) and the second locating plate (104), first sleeve (7) pass through described with second sleeve (8)
First locating plate (103) is connected, and first positioning seat (101) is set in the first rotating shaft (2), second positioning seat
(102) it is set on second shaft (3), first locating plate (103) is set to first transmission gear (91) and second
The side of transmission gear (94), first positioning seat (101) and the second positioning seat (102) are set to first transmission gear
(91) and the other side of the second transmission gear (94), first positioning seat (101) and the second positioning seat (102) are fixed by second
Bit slice (104) is connected.
4. twin shaft according to claim 3 is the same as dynamic laptop pivot structure, it is characterised in that：First positioning
Seat (101) and the second positioning seat (102) they include pedestal (105) and the boss (106) that is set on pedestal (105), and described the
The location hole (107) being inserted into for the boss (106) is offered on two locating plates (104).
5. twin shaft according to claim 4 is the same as dynamic laptop pivot structure, it is characterised in that：Among described first
Gear (92) and the second intermediate gear (93) respectively include one on the bull stick of its own, first locating plate (103)
It opens up there are two the first through hole (108) that passes through of one end for two bull sticks, is also opened up on second locating plate (104)
There are two the second through-holes (109) that the other end for two bull sticks passes through.
6. the twin shaft according to claim 1-5 any one is the same as dynamic laptop pivot structure, it is characterised in that：Also
Including the anti-drop device (11) being respectively arranged in the first rotating shaft (2) and the second shaft (3), the anti-drop device (11) is respectively
Positioned at the first rotating shaft (2) close to one end of the first clad type bolster (41) and the second shaft (3) close to described second
One end of clad type bolster (42).
7. twin shaft according to claim 6 is the same as dynamic laptop pivot structure, it is characterised in that：The anti-drop device
(11) it is the snap ring on the side wall of first rotating shaft (2) and the second shaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443190.2A CN108412892B (en) | 2018-05-10 | 2018-05-10 | Double-shaft synchronous rotating shaft structure for notebook computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810443190.2A CN108412892B (en) | 2018-05-10 | 2018-05-10 | Double-shaft synchronous rotating shaft structure for notebook computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108412892A true CN108412892A (en) | 2018-08-17 |
| CN108412892B CN108412892B (en) | 2020-01-21 |
Family
ID=63138637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810443190.2A Active CN108412892B (en) | 2018-05-10 | 2018-05-10 | Double-shaft synchronous rotating shaft structure for notebook computer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108412892B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654114A (en) * | 2019-01-21 | 2019-04-19 | 昆山玮硕恒基智能科技股份有限公司 | Hinge linkage mechanism |
| CN110109516A (en) * | 2019-06-19 | 2019-08-09 | 泰州市创新电子有限公司 | Twin shaft shaft and laptop |
| CN112181057A (en) * | 2020-09-28 | 2021-01-05 | 广东虹勤通讯技术有限公司 | Rotating shaft assembly and electronic device |
| CN113153894A (en) * | 2020-01-23 | 2021-07-23 | 英业达科技有限公司 | Rotating shaft assembly and electronic device comprising same |
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| CN205423517U (en) * | 2015-12-07 | 2016-08-03 | 桥伟运动器材（南京）有限公司 | Simultaneous movement mechanism and use equipment of this mechanism |
| US9464471B1 (en) * | 2015-11-30 | 2016-10-11 | Lianhong Art Co., Ltd. | Dual shaft hinge device |
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| CN205780260U (en) * | 2016-06-02 | 2016-12-07 | 兆利科技工业股份有限公司 | There is the hinge of linkage function |
| CN106969025A (en) * | 2017-02-17 | 2017-07-21 | 联想(北京)有限公司 | Structure with double rotating shafts and electronic equipment |
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| CN105465161A (en) * | 2014-09-03 | 2016-04-06 | 联想(北京)有限公司 | Double-rotary-shaft pivoting device and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109654114A (en) * | 2019-01-21 | 2019-04-19 | 昆山玮硕恒基智能科技股份有限公司 | Hinge linkage mechanism |
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| CN113153894A (en) * | 2020-01-23 | 2021-07-23 | 英业达科技有限公司 | Rotating shaft assembly and electronic device comprising same |
| CN113153894B (en) * | 2020-01-23 | 2022-10-04 | 英业达科技有限公司 | Rotating shaft assembly and electronic device comprising same |
| CN112181057A (en) * | 2020-09-28 | 2021-01-05 | 广东虹勤通讯技术有限公司 | Rotating shaft assembly and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108412892B (en) | 2020-01-21 |
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