CN107742800B - A kind of protection type USB interface structure - Google Patents
A kind of protection type USB interface structure Download PDFInfo
- Publication number
- CN107742800B CN107742800B CN201710933971.5A CN201710933971A CN107742800B CN 107742800 B CN107742800 B CN 107742800B CN 201710933971 A CN201710933971 A CN 201710933971A CN 107742800 B CN107742800 B CN 107742800B
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- CN
- China
- Prior art keywords
- block
- fixed
- usb interface
- protection
- spring
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/502—Bases; Cases composed of different pieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/44—Means for preventing access to live contacts
- H01R13/447—Shutter or cover plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/46—Bases; Cases
- H01R13/52—Dustproof, splashproof, drip-proof, waterproof, or flameproof cases
- H01R13/5213—Covers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
- H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
- H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
-
- 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
- G06F1/18—Packaging or power distribution
- G06F1/181—Enclosures
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/06—Connectors or connections adapted for particular applications for computer periphery
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Connector Housings Or Holding Contact Members (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
The invention proposes a kind of protection type USB interface structures, USB interface ontology one end is equipped with USB interface, protective device includes shield, shield has the protection chamber of both ends open, protection the first end opening of chamber is located on the outside of USB interface, protection the second end opening of chamber is equipped with the first protective block for being used to block protection the second end opening of chamber positioned opposite, second protective block, first protective block first end passes through the first rotating member and protection cavity wall rotation connection, second protective block first end protects cavity wall rotation connection by the second rotating member and shield, first protective block second end is bonded with the second protective block second end activity；Protection cavity wall is equipped with for storing the first protective block, the first accommodating groove of the second protective block, the second accommodating groove；Protection the first end opening of chamber upper and lower ends pass through first respectively and are telescopically connected to part, second are telescopically connected to part and the telescopic connection of USB interface.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of protection type USB interface structures.
Background technique
Sci-tech product of the computer as modern society is a kind of modern electronic computer device for supercomputing, can
To carry out numerical value calculating, and logic calculation can be carried out, also have the function of store-memory, be that can be run according to program, automatic,
The modernization intelligent electronic device of high speed processing mass data, is made of hardware system and software systems.In each of computer
It is one of it is very common that safeguard measure USB interface, USB interface are mostly without during use in a hardware
, USB interface be mostly it is exposed in air, not only influence the beauty of computer, while inside can accumulate dust, and having very much can
Interface can be blocked with thing by naughty child.
Summary of the invention
Based on technical problem present in background technique, the invention proposes a kind of protection type USB interface structures.
A kind of protection type USB interface structure proposed by the present invention, including USB interface ontology and protective device, USB interface sheet
Body one end is equipped with USB interface, and protective device includes shield, and shield has the protection chamber of both ends open, protects chamber first end
Opening is located on the outside of USB interface, and protection the second end opening of chamber is equipped with positioned opposite for blocking protection the second end opening of chamber
The first protective block, the second protective block, the first protective block first end is by the first rotating member and protection cavity wall rotation connection, the
Two protective block first ends protect cavity wall rotation connection, the first protective block second end and second by the second rotating member and shield
Protective block second end activity fitting；Protection cavity wall be equipped with for store the first protective block, the second protective block the first accommodating groove,
Second accommodating groove；Protection the first end opening of chamber upper and lower ends pass through first respectively and are telescopically connected to part, second are telescopically connected to part and USB
The telescopic connection of interface.
Preferably, the first rotating member includes the first fixed pin shaft and first back-moving spring, the rotational installation of the first fixed pin shaft
In the first accommodating groove, first back-moving spring is sleeved on the first fixed pin shaft, and first back-moving spring is equipped with positioned opposite
First spring strip, second spring strip are fixed with the first fixture block, the fixed interspersed connection of the first spring strip in the first accommodating groove
First fixture block, second spring strip the first protective block of fixed interspersed connection.
Preferably, the second rotating member includes the second fixed pin shaft and second back-moving spring, the rotational installation of the second fixed pin shaft
In the second accommodating groove, second back-moving spring is sleeved on the second fixed pin shaft, and second back-moving spring is equipped with positioned opposite
Third spring strip, the 4th spring strip are fixed with the second fixture block, the fixed interspersed connection of third spring strip in the second accommodating groove
Second fixture block, the 4th spring strip the second protective block of fixed interspersed connection.
Preferably, USB interface outer upper end is fixed with the first fixed block, and the first fixed block is equipped with the first through hole, the
One, which is telescopically connected to part, is fixed on protection chamber including the second fixed block, the first limit slide bar and the first adjustable spring, the second fixed block
On inner wall, the first limit slide bar connect with the second fixed block and is located at the second fixed block close to the first fixed block side, the first limit
The central axis of position slide bar is overlapped with the central axis of the first through hole, and the diameter of the first limit slide bar is less than the first through hole
Diameter, the first adjustable spring is sleeved on the first limit slide bar, the first adjustable spring both ends respectively with the first fixed block, second
Fixed block connection.
Preferably, lower end is fixed with third fixed block on the outside of USB interface, and third fixed block is equipped with the second through hole, the
Two, which are telescopically connected to part, is fixed on protection chamber including the 4th fixed block, the second limit slide bar and the second adjustable spring, the 4th fixed block
On inner wall, the second limit slide bar connect with the 4th fixed block and is located at the 4th fixed block close to third fixed block side, the second limit
The central axis of position slide bar is overlapped with the central axis of the second through hole, and the diameter of the second limit slide bar is less than the second through hole
Diameter, the second adjustable spring is sleeved on the second limit slide bar, the second adjustable spring both ends respectively with third fixed block, the 4th
Fixed block connection.
The protection type USB interface structure that this hair proposes, by the way that protection dress is arranged at the position that USB interface is contacted with air
It sets, the first protective block and the second protective block of shield port are blocked in installation at the shield port of protective device, can be very
Good is protected USB interface, and the first protective block, the second protective block are passed through the first rotating member, the second rotating member respectively
It is rotatably installed on shield, the mutual folding setting of the first protective block, the second protective block may be implemented, in this way in the mistake used
In journey easily, it will not make troubles to external equipments such as grafting mouse, keyboards, moreover it is possible to there is good protective effect, it is practical
Property is very strong；Shield is telescopically connected to part by first, second is telescopically connected to part and the telescopic connection of USB interface by the present invention, can
When in use, when the USB joint insertion USB interface of external equipment, the first protective block, the second protective block to be strutted first, when
First protective block, the second protective block respectively enter the first accommodating groove, in the second accommodating groove, by external force by shield along first
It is mutually clamped in limit slide bar, the second limit slide bar push-in USB interface, leaks out USB interface, convenient mouse, keyboard etc. are external to be set
Standby grafting.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of protection type USB interface structure proposed by the present invention；
Fig. 2 is the structural schematic diagram of shield in a kind of protection type USB interface structure proposed by the present invention；
Fig. 3 is the structural schematic diagram of first back-moving spring in a kind of protection type USB interface structure proposed by the present invention；
Fig. 4 is the structural schematic diagram of second back-moving spring in a kind of protection type USB interface structure proposed by the present invention；
Fig. 5 is a kind of structural schematic diagram of computer proposed by the present invention.
Specific embodiment
- Fig. 5 referring to Fig.1, the present invention propose a kind of protection type USB interface structure, and protection type USB interface structure includes USB
Interface body and protective device；Wherein:
USB interface ontology one end is equipped with usb 1, and upper and lower ends are respectively fixed with the first fixed block on the outside of usb 1
9, third fixed block 10, the first fixed block 9 are equipped with the first through hole 91, and third fixed block 10 is equipped with the second through hole 101.
Protective device includes shield 2, and the length of shield 2 is not less than 1cm, and shield 2 has the protection of both ends open
Chamber 21, protection 21 first end opening of chamber is located on the outside of usb 1 and protection 21 first end opening upper and lower ends of chamber pass through respectively
First is telescopically connected to part 3, second is telescopically connected to part 4 and the telescopic connection of usb 1, and protection 21 second end opening of chamber is equipped with phase
To arrangement for blocking the first protective block 5, the second protective block 6 of protection 21 second end opening of chamber, protection 21 inner wall of chamber is equipped with
For storing the first accommodating groove 22, the second accommodating groove 23 of the first protective block 5, the second protective block 6,5 first end of the first protective block
By the first rotating member 7 and protection 21 inner wall of chamber rotation connection, 6 first end of the second protective block passes through the second rotating member 8 and protection
2 protection 21 inner wall of chamber rotation connection of cover, 5 second end of the first protective block are bonded with the 6 second end activity of the second protective block, the first protection
Block 5,6 second end of the second protective block are enclosed with rubber layer.
In a particular embodiment, first be telescopically connected to part 3 include the second fixed block 31, first limit slide bar 32 and first stretch
Contracting spring 33, the second fixed block 31 are fixed on protection 21 inner wall of chamber, and the first limit slide bar 32 is connect simultaneously with the second fixed block 31
Positioned at the second fixed block 31 close to 9 side of the first fixed block, the central axis of the first limit slide bar 32 and the first through hole 91
Central axis is overlapped, and the diameter of the first limit slide bar 32 is less than the diameter of the first through hole 91, the first adjustable spring 33 suit
On the first limit slide bar 32,33 both ends of the first adjustable spring are connect with the first fixed block 9, the second fixed block 31 respectively.
In a particular embodiment, second be telescopically connected to part 4 include the 4th fixed block 41, second limit slide bar 42 and second stretch
Contracting spring 43, the 4th fixed block 41 are fixed on protection 21 inner wall of chamber, and the second limit slide bar 42 is connect simultaneously with the 4th fixed block 41
Positioned at the 4th fixed block 41 close to 10 side of third fixed block, the central axis and the second through hole 101 of the second limit slide bar 42
Central axis be overlapped, and second limit slide bar 42 diameter of the diameter less than the second through hole 101, the second 43 sets of adjustable spring
On the second limit slide bar 42,43 both ends of the second adjustable spring are connect with third fixed block 10, the 4th fixed block 41 respectively.
In a particular embodiment, the first rotating member 7 includes the first fixed pin shaft 71 and first back-moving spring 72, and first is fixed
Pin shaft 71 is rotatably installed in the first accommodating groove 22, and first back-moving spring 72 is sleeved on the first fixed pin shaft 71, and first resets
Spring 72 is equipped with the first spring strip 721 positioned opposite, second spring strip 722, and the is fixed in the first accommodating groove 22
One fixture block 24, the first spring strip 721 the first fixture block 24 of fixed interspersed connection, the fixed interspersed connection of second spring strip 722 the
One protective block 5.
In a particular embodiment, the second rotating member 8 includes the second fixed pin shaft 81 and second back-moving spring 82, and second is fixed
Pin shaft 81 is rotatably installed in the second accommodating groove 23, and second back-moving spring 82 is sleeved on the second fixed pin shaft 81, and second resets
Spring 82 is equipped with third spring strip 821 positioned opposite, the 4th spring strip 822, and the is fixed in the second accommodating groove 23
Two fixture blocks 25, the second fixture block 25 of fixed interspersed connection of third spring strip 821, the fixed interspersed connection of the 4th spring strip 822 the
Two protective blocks 6.
In a particular embodiment, the coefficient of elasticity phase of the coefficient of elasticity of the first adjustable spring 33 and the second adjustable spring 43
Deng the coefficient of elasticity of first back-moving spring 72 is equal with the coefficient of elasticity of second back-moving spring 82, and first back-moving spring 72,
The coefficient of elasticity of two reset springs 82 less than the first adjustable spring 33, the second adjustable spring 43 coefficient of elasticity, and when first multiple
When position spring 72, second back-moving spring 82 reach maximum flexibility deformation, the first adjustable spring 33, the second adjustable spring 43 start to send out
Raw elastic deformation.
A kind of protection type USB interface structure proposed by the present invention, by being arranged at the position that usb 1 is contacted with air
Protective device, the first protective block 5 and the second protection of 2 port of shield are blocked in installation at 2 port of shield of protective device
Block 6 can be very good usb 1 that the first protective block 5, the second protective block 6 are passed through the first rotation respectively to protecting
Part 8, the second rotating member 9 are rotatably installed on shield 2, and the mutual folding of the first protective block 5, the second protective block 6 may be implemented
Setting will not make troubles, moreover it is possible to have so during use easily to external equipments such as grafting mouse, keyboards
Good protective effect, practicability are very strong；The present invention by shield by first be telescopically connected to part 3, second be telescopically connected to part 4 with
The telescopic connection of usb 1 when the USB joint insertion usb 1 of external equipment, can be prevented first first when in use
Protecting block 5, the second protective block 6 strut, when the first protective block 5, the second protective block 6 respectively enter the storage of the first accommodating groove 22, second
In slot 23, shield 2 is limited slide bar 42 and be pushed into usb 1 along the first limit slide bar 32, second by external force and is mutually blocked
It closes, leaks out usb 1, the grafting of the external equipments such as convenient mouse, keyboard.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of protection type USB interface structure, which is characterized in that including USB interface ontology and protective device, USB interface ontology
One end is equipped with USB interface (1), and protective device includes shield (2), and shield (2) has the protection chamber (21) of both ends open, prevents
Shield (21) first end opening of chamber is located on the outside of USB interface (1), and protection (21) second end opening of chamber is equipped with positioned opposite be used for
The first protective block (5), the second protective block (6) of protection (21) second end opening of chamber are blocked, the first protective block (5) first end passes through
First rotating member (7) and protection chamber (21) inner wall rotation connection, the second protective block (6) first end by the second rotating member (8) with
Shield (2) protects the rotation connection of chamber (21) inner wall, the first protective block (5) second end and the second protective block (6) second end activity
Fitting；Protection chamber (21) inner wall is equipped with the first accommodating groove (22) for storing the first protective block (5), the second protective block (6), the
Two accommodating grooves (23)；Protection (21) first end opening upper and lower ends of chamber pass through first respectively and are telescopically connected to part (3), the second flexible company
Fitting (4) and USB interface (1) telescopic connection；
USB interface (1) outer upper end is fixed with the first fixed block (9), and the first fixed block (9) is equipped with the first through hole (91),
First, which is telescopically connected to part (3), includes the second fixed block (31), the first limit slide bar (32) and the first adjustable spring (33), and second is solid
Determine block (31) to be fixed on protection chamber (21) inner wall, the first limit slide bar (32) connect with the second fixed block (31) and is located at second
Fixed block (31) close to the first fixed block (9) side, the central axis of the first limit slide bar (32) and the first through hole (91)
Central axis is overlapped, and diameter of the diameter less than the first through hole (91) of the first limit slide bar (32), the first adjustable spring
(33) it is sleeved on the first limit slide bar (32), the first adjustable spring (33) both ends are fixed with the first fixed block (9), second respectively
Block (31) connection.
2. protection type USB interface structure according to claim 1, which is characterized in that the first rotating member (7) includes first solid
Rationed marketing axis (71) and first back-moving spring (72), the first fixed pin shaft (71) are rotatably installed in the first accommodating groove (22), and first
Reset spring (72) is sleeved on the first fixed pin shaft (71), and first back-moving spring (72) is equipped with the first spring positioned opposite
Strip (721), second spring strip (722), the first accommodating groove (22) is interior to be fixed with the first fixture block (24), the first spring strip
(721) fixed interspersed connection the first fixture block (24), the fixed interspersed connection the first protective block (5) of second spring strip (722).
3. protection type USB interface structure according to claim 1, which is characterized in that the second rotating member (8) includes second solid
Rationed marketing axis (81) and second back-moving spring (82), the second fixed pin shaft (81) are rotatably installed in the second accommodating groove (23), and second
Reset spring (82) is sleeved on the second fixed pin shaft (81), and second back-moving spring (82) is equipped with third spring positioned opposite
Strip (821), the 4th spring strip (822), the second accommodating groove (23) is interior to be fixed with the second fixture block (25), third spring strip
(821) fixed interspersed connection the second fixture block (25), the fixed interspersed connection the second protective block (6) of the 4th spring strip (822).
4. protection type USB interface structure according to any one of claim 1-3, which is characterized in that USB interface (1) is outside
Side lower end is fixed with third fixed block (10), and third fixed block (10) is equipped with the second through hole (101), and second is telescopically connected to part
It (4) include that the 4th fixed block (41), the second limit slide bar (42) and the second adjustable spring (43), the 4th fixed block (41) are fixed on
It protects on chamber (21) inner wall, the second limit slide bar (42) is connect with the 4th fixed block (41) and close positioned at the 4th fixed block (41)
The central axis of third fixed block (10) side, the second limit slide bar (42) is overlapped with the central axis of the second through hole (101),
And second limit slide bar (42) diameter less than the diameter of the second through hole (101), the second adjustable spring (43) is sleeved on second
It limits on slide bar (42), the second adjustable spring (43) both ends are connect with third fixed block (10), the 4th fixed block (41) respectively.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2016109693160 | 2016-11-06 | ||
| CN201610969316.0A CN106549257A (en) | 2016-11-06 | 2016-11-06 | A kind of USB interface of computer structure with preventer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107742800A CN107742800A (en) | 2018-02-27 |
| CN107742800B true CN107742800B (en) | 2019-08-23 |
Family
ID=58394027
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610969316.0A Pending CN106549257A (en) | 2016-11-06 | 2016-11-06 | A kind of USB interface of computer structure with preventer |
| CN201710933550.2A Active CN107732539B (en) | 2016-11-06 | 2017-10-10 | A kind of computer and its protection type USB interface structure |
| CN201710933971.5A Active CN107742800B (en) | 2016-11-06 | 2017-10-10 | A kind of protection type USB interface structure |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610969316.0A Pending CN106549257A (en) | 2016-11-06 | 2016-11-06 | A kind of USB interface of computer structure with preventer |
| CN201710933550.2A Active CN107732539B (en) | 2016-11-06 | 2017-10-10 | A kind of computer and its protection type USB interface structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN106549257A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019061229A1 (en) * | 2017-09-29 | 2019-04-04 | 深圳传音通讯有限公司 | Usb interface sealing device and terminal |
| CN107919566B (en) * | 2017-11-16 | 2023-09-01 | 镇江奥博通信设备有限公司 | Network electric appliance connector with protection function |
| CN108321611A (en) * | 2018-01-29 | 2018-07-24 | 宋盈盈 | A kind of USB charging interface |
| CN109890162B (en) * | 2019-04-12 | 2021-07-13 | Oppo广东移动通信有限公司 | Shell assembly of electronic equipment and electronic equipment |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4256661B2 (en) * | 2002-11-05 | 2009-04-22 | タイコエレクトロニクスアンプ株式会社 | Electrical connector with shutter |
| CN201700001U (en) * | 2009-12-25 | 2011-01-05 | 杭州谱菲通信技术有限公司 | Network card with telescopic hidden type USB head cover |
| US8348697B2 (en) * | 2011-04-22 | 2013-01-08 | John Mezzalingua Associates, Inc. | Coaxial cable connector having slotted post member |
| CN104658786A (en) * | 2013-11-21 | 2015-05-27 | 上海航空电器有限公司 | Automatic reset type protective cover |
| CN104795689A (en) * | 2015-05-11 | 2015-07-22 | 海盐壳锐水族用品有限公司 | Power supply equipment with telescopic dustproof cover and use method of power supply equipment |
| CN205172262U (en) * | 2015-10-26 | 2016-04-20 | 宁波华德汽车零部件有限公司 | Oil filler hole door damping opening mechanism |
-
2016
- 2016-11-06 CN CN201610969316.0A patent/CN106549257A/en active Pending
-
2017
- 2017-10-10 CN CN201710933550.2A patent/CN107732539B/en active Active
- 2017-10-10 CN CN201710933971.5A patent/CN107742800B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107732539B (en) | 2019-06-04 |
| CN107732539A (en) | 2018-02-23 |
| CN107742800A (en) | 2018-02-27 |
| CN106549257A (en) | 2017-03-29 |
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