CN105464470B - Automatic lock - Google Patents
Automatic lock Download PDFInfo
- Publication number
- CN105464470B CN105464470B CN201510723334.6A CN201510723334A CN105464470B CN 105464470 B CN105464470 B CN 105464470B CN 201510723334 A CN201510723334 A CN 201510723334A CN 105464470 B CN105464470 B CN 105464470B
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- Prior art keywords
- drive link
- mandril
- shaft
- handle
- lock
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- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 239000011469 building brick Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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- Lock And Its Accessories (AREA)
Abstract
It is locked automatically the invention discloses a kind of, including electric machine assembly and manual component, it is characterized in that：The manual component includes lock core, lock shaft, rotation telescoping mechanism, drive link and mandril, the end of mandril is with top, the drive link withstands mandril, the drive link is configured with the resetting-mechanism that it is promoted to be resetted towards lock shaft direction, the mandril is configured with interior bar, interior bar, which matches to merge to be driven by it with electronic building brick, drives drive link to stretch, the rotation telescoping mechanism includes the screw rod of drive link tail portion and the nut of lock shaft front end, screw rod enters in nut, and the nut rotation promotes screw rod to be moved forward and backward when the lock shaft rotates；It is described top alignment promote handle with drive lock tongue open transmission component carry out clutch action clutch, the top push and disengaging promote clutch carry out clutch switching.Automatically the unlocking transmission component locked is simpler, volume smaller.
Description
Technical field
The present invention relates to a kind of automatic lock, which has under electronically normal unlocking function and emergency rating
The function of mechanical unlocking is carried out using emergency key.
Background technology
The automatic lock of transmission includes electric machine assembly and manual component, and wherein electric machine assembly and manual component is each equipped with opening
The transmission component of lock.But the structure of its transmission component is complex, and occupied space is larger, in anti-technical unlocking side
There is also defects in face.
Invention content
In view of the shortcomings of the background art, the technical problems to be solved by the invention are to provide a kind of automatic lock, should be certainly
The dynamic unlocking transmission component locked is simpler, volume smaller.
The present invention adopts the following technical scheme that complete：Automatic lock, including electric machine assembly and manual component, feature
It is：The manual component includes lock core, lock shaft, rotation telescoping mechanism, drive link and mandril, and the end of mandril is with top, institute
It states drive link and withstands mandril, the drive link is configured with the resetting-mechanism that it is promoted to be resetted towards lock shaft direction, and the mandril is matched
Interior bar is equipped with, interior bar, which matches to merge to be driven by it with electronic building brick, drives drive link to stretch, and the rotation telescoping mechanism includes transmission
The screw rod of bar tail portion and the nut of lock shaft front end, screw rod enter in nut, and the nut rotation promotes spiral shell when the lock shaft rotates
Bar is moved forward and backward；The top alignment promotes handle with the transmission component of lock tongue unlatching is driven to carry out the clutch of clutch action
Structure, the top push and disengaging promote clutch carry out clutch switching.
In the present invention, unlocked using the machinery that emergency key carries out and carried out by modes such as fingerprint recognition system or remote controls
Intelligent unlocking be achieved by a kind of drive, make drive mechanism simpler, manufacture and assemble it is more convenient, and
Volume smaller is conducive to reduce the volume locked automatically.
Description of the drawings
The present invention has drawings described below：
Fig. 1 separate structure schematic diagrames provided by the invention locked automatically.
Fig. 2 is the separate structure schematic diagram of the backsight state locked automatically in Fig. 1.
Fig. 3 is the separate structure schematic diagram of the transmission mechanism locked automatically in Fig. 1.
Fig. 4 is the separate structure schematic diagram of the backsight state of the transmission mechanism locked automatically in Fig. 3.
Fig. 5 is the lock core locked automatically, lock shaft and the separate structure schematic diagram for being driven bar part in Fig. 1.
Fig. 6 be Fig. 5 in the lock core locked automatically, lock shaft and be driven bar part backsight state separate structure schematic diagram.
Fig. 7 is the separate structure schematic diagram of the bottom case locked automatically and empty rotation seating portion in Fig. 1.
Fig. 8 is the separate structure schematic diagram of the backsight state of the bottom case locked automatically and empty rotation seating portion in Fig. 7.
Fig. 9 is structure schematic cross-sectional view of the automatic lock after being inserted into emergency key and being rotated by 90 ° in Fig. 1.
Figure 10 is the lateral schematic cross-sectional view locked automatically of Fig. 9.
Specific embodiment
Attached drawing illustrates technical scheme of the present invention and embodiment, further describes embodiment in conjunction with attached drawing below
Each related details and its operation principle.
With reference to shown in Fig. 1, Fig. 2, Fig. 5, Fig. 6, automatic lock provided by the invention, including electric machine assembly and manual component, electricity
Sub-component generally has Password Input is unlocked and fingerprint input is unlocked etc., and manual component is namely opened as the standby key of emergency
Lock, the manual component include lock core 1, lock shaft 2, rotation telescoping mechanism, drive link 3 and mandril 4, and the end of mandril 4 is with top
First 6, the drive link 3 withstands mandril 4, and the drive link 3 is configured with the resetting-mechanism that it is promoted to be resetted towards 2 direction of lock shaft,
The drive link 3 and mandril 4 are configured with the guide groove 7 being set in housing 5, and the drive link 3 and mandril 4 are in guide groove 7
Mobile, guide groove 7 can make the movement of drive link 3 and mandril 4 more accurate, and the mandril 4 is configured with interior bar 41, interior bar 41 and electricity
Sub-component is driven by it with merging drives drive link 3 flexible, and the rotation telescoping mechanism includes 33 He of screw rod of drive link tail portion
The nut 21 of 2 front end of lock shaft, screw rod 33 enter in nut 21, the lock shaft 2 when rotating the rotation of nut 21 promote screw rod 33
It is moved forward and backward, the action that emergency key rotates is converted to the action for pushing drive link 3 forward；6 alignment of top promotes handle
Hand 8 with drive lock tongue open transmission component carry out clutch action clutch, it is described top 6 push and disengaging promote from
It closes mechanism and carries out clutch switching.In the present embodiment, drive link 3 and mandril 4 can be structure as a whole, or split knot
There is certain interference between the structure of 4 one of drive link 3 and mandril unlocks to electronic building brick and manual component is unlocked in structure, but
It can implement；And the structure of 4 split of drive link 3 and mandril is more suitable for opening respectively for electronic building brick and manual component in locking automatically
Lock.
With reference to shown in Fig. 7, Fig. 8, the transmission component that lock tongue is driven to open is empty rotation seat 9, and the clutch includes
Shaft 10 and empty rotation seat 9, sky, which revolves, carries clutch pin hole 91 on seat 9, be equipped with on-of pin 11 in clutch pin hole 91, on-of pin 11 is matched
The third resetting spring 12 that it is promoted to be displaced outwardly is equipped with, the shaft 10 is plugged in empty rotation 9 endoporus of seat, in the shaft 10
Alignment on-of pin 11 offers connecting hole 101, and the empty rotation seat 9 is configured with the first torsional spring 13 that it is promoted to reset always, described
Shaft 10 is configured with the second torsional spring that it is promoted to reset always, the shaft 10 alignment of on-of pin 11 connecting hole when resetting
101, the handle 8 is connect with shaft 10, and the rotation of handle 8 drives shaft 10 to rotate.In order to enable empty rotation seat 9 multiple after rotation
Position, 9 bottom of the empty rotation seat carry the first torsional spring shifting block 92, have the first torsional spring locating piece 52, the sky on the bottom case 51 of housing 5
The rotation rotation of seat 9 promotes the first torsional spring shifting block 92 to stir a foot of the first torsional spring 13, and the another foot of the first torsional spring 13 is by first
Torsional spring locating piece 52 stops, so as to which the empty rotation seat 9 be promoted to have reset function.On-of pin 11 can be with when being pushed by mandril 4
It enters in the clutch pin hole 91 of empty rotation seat 8, promotes empty rotation seat 9 that can together be rotated with shaft 10, the shaft 10 when mandril 4 unclamps
Rotation can not drive empty rotation seat 9 to rotate.
With reference to shown in Fig. 1, Fig. 2, Fig. 9, Figure 10, the empty rotation seat 9 is configured with handle reversing turntable 14, handle reversing turntable
It is uniformly distributed on 14 with locked groove 141, locked groove 141 along 14 circumferencial direction of handle reversing turntable, it is general that one is distributed per an angle of 90 degrees
Locked groove 141, handle can be fixed with 141 matched closing piece 15 of locked groove, closing piece 15 after being inserted into locked groove 141 by being provided on the housing 5
The position of reversing turntable 14, the closing piece 15 are configured with push button 151, and push button 151 and closing piece 15, which are fixed as one and are configured, promotes it
The second back-moving spring 16 of locked groove 141 is exited back, the shaft 10 is set in handle reversing turntable 14 and can opposite handle
Reversing turntable 14 rotates, and has the second limiting slot 93 with the first limiting slot 142, empty revolve on seat 9 on handle reversing turntable 14, described
Corresponding first limiting slot 142 and the second limiting slot 93 are provided with the first limited block 102 in shaft 10, and the first limited block 102 is in
In first limiting slot 142 and the second limiting slot 93, third limiting slot 53 is offered on the bottom case 51, is set on the empty rotation seat 9
The second limited block 94 is equipped with, the second limited block 94 is in third limiting slot 53.Handle reversing turntable 14 can be 5 turns with respect to housing
Dynamic, the closing piece 15 with push button 151, which is caught in the locked groove 141 of handle reversing turntable 14, can fix handle reversing turntable 14, make
It cannot be rotated, and the second limiting slot 93, the first limiting slot 142 and the cooperation of the first limited block 102 define what handle 8 can be swung
Angle.When handle 8 commutates, user can push push button 151 that closing piece 15 is made to exit locked groove 141, only need swing handle 180 at this time
Degree can make closing piece 15 be directed at next locked groove 141, and because the position of the first limiting slot 142 also accordingly rotates, so as to make handle 8
90 degree can be rotated to the next position（Because under by external force state, the first limited block 102 is not in the first limiting slot 142
Between position, therefore then the first limited block 102 pushes handle to change again firstly the need of the stroke for covering half of first limiting slot 142
To turntable 14, therefore after handle 8 has rotated 180 degree, the radian that handle reversing turntable 14 rotates is below 180 degree）, and in the position
Put in the angle of restriction and rotate, user can need swing handle reversing turntable 14 according to itself, realize handle it is upper and lower,
Left and right exchange.The second limited block 94 is provided on above-mentioned empty rotation seat 9 and defines sky with the cooperation of third limiting slot 53 on bottom case 51
The rotational angle of seat 9 is revolved, therefore the commutation direction of handle 8 and commutation angle can be limited.
With reference to shown in Fig. 3, Fig. 4, the drive link 3 includes the montant 31 being connected with each other and L-shaped bar 32, the resetting-mechanism
Including (the first back-moving spring 17, (the first back-moving spring 17 is set to L-shaped bar 31 between the retaining wall 18 that is fixed on housing 5, institute
It states mandril 4 to be driven by motor including the outer bar 42 coordinated with drive link 3 and the interior bar 41 coordinated with electric machine assembly, interior bar 41, institute
It states interior bar 41 and is configured with the 4th resetting spring that it is promoted to reset downwards, the top 6 is in crescent and is set to outer bar 42
End, 5, the crescent top can more accurately push on-of pin 11, and ensure that empty rotation seat 9 and shaft 10 rotate together
When, on-of pin 9 is inserted into clutch pin hole 91 always.
Jacking block 34 shown in reference picture 1, Fig. 2, that the side of drive link 3 is set with inclined-plane or cambered surface, on the housing 5
Corresponding jacking block 34 is provided with touch switch 18, and jacking block 34 squeezes and triggers shake-up and opens during the drive link 3 moves up
18 are closed, touch switch 18 connects audible alarm unit.When drive link 3 is pushed progress machinery unlocking upwards, touch switch is triggered
18, warning device is promoted to send out continuous alarm sound, for the owner that normal use emergency key is unlocked, this alarm
Sound will not give rise to misunderstanding, but for burglar, in illegal open, drive link 3 be pushed to trigger alarm, in situation not
Under the premise of bright, it is easy to frighten burglar away, play the role of certain safety guarantee.
The three kinds of operations provided by the invention locked automatically are described in detail below：
First, emergency key is unlocked：Emergency key is inserted into lock core 1 and rotates lock shaft 2, the nut when lock shaft 2 rotates
21 rotations promote screw rod 33 to be moved forward and backward, and the action that emergency key rotates is converted to the action for pushing drive link 3 forward, transmission
Bar 3 overcomes the elastic force of (the first back-moving spring 17 to move forward, and then ejection top 6, and the interior bar 41 on top 6 overcomes the 4th reset bullet
The elastic force of spring comes directly towards the crescent part on 6 and pushes on-of pin 11, and on-of pin 11 is inserted into the connecting hole 101 in shaft 10, makes to turn
The rotation of axis 10 can drive empty rotation seat 9, open lock tongue by the empty rotation for revolving 9, sky rotation seat 9 drives the first torsional spring when rotating
Shifting block 92 stirs the foot on 13 one side of the first torsional spring, therefore unclamps handle space-time and revolve the band turn under the action of the first torsional spring 13 of seat 9
Axis 10 resets again.And on-of pin 11 is detached under the action of third resetting spring 12 and turns when lock core 1 drives lock shaft 2 to reset
Connecting hole 101 on axis 10, and protrude outward again, shaft 10 is made to come back to the state that empty rotation seat 9 can not be driven to rotate.
2nd, fingerprint or password unlocking：Band uses input fingerprint or password when electronically operating, electronic building brick
Electronics is had an effect, and drive link 3 and 1 grade parts of lock core are not engaged in work at this time, and the interior bar 41 of motor pushing mandril 4 overcomes
Four resetting springs move forward, and the crescent of outer bar 42 is promoted to come directly towards 6 and pushes on-of pin 11, on-of pin 11 is inserted into shaft 10
Connecting hole 101 enables the rotation of shaft 10 to drive empty rotation seat 9, opens lock tongue by the empty rotation for revolving seat 9, sky rotation seat 9 rotates
When the first torsional spring shifting block 92 is driven to stir the foot on 13 one side of the first torsional spring, therefore unclamp handle space-time and revolve seat 9 in the first torsional spring 13
Under the action of drive shaft 10 reset again.And on-of pin 11 promotes interior bar 41 to drive entire mandril 4 multiple in the 4th resetting spring
During position, the connecting hole 101 that is detached under the action of the third resetting spring 12 in shaft 10, and protrude outward again, make shaft 10
Come back to the state that empty rotation seat 9 can not be driven to rotate.
3rd, handle commutates：The second limiting slot 93, the first limiting slot 142 and the first limited block 102 on handle reversing turntable
Cooperation defines the amplitude that handle 8 can be swung.When handle 8 commutates, user can push push button 151 that closing piece 15 is made to exit lock
Slot 141 only needs swing handle 180 degree that closing piece 15 can be made to be directed at another locked groove 141 and is caught in, and because of the first limiting slot at this time
142 position also accordingly rotates, so as to which handle 8 be enable to rotate 90 degree to the next position（Because under by external force state, first
Limited block 102 is in the centre position of the first limiting slot 142, therefore the first limited block 102 is limited firstly the need of covering half first
After the stroke of position slot 142, then pushes handle reversing turntable 14 again, therefore handle 8 has rotated 180 degree, handle reversing turntable 14
The radian of rotation is below 180 degree）, and rotated in the amplitude limited in the position, user can turn according to the needs of itself
Dynamic handle reversing turntable 14, realizes that handle upper and lower, left and right exchange.The second limited block 94 and bottom are provided on above-mentioned empty rotation seat 9
Third limiting slot 53 on shell 51 coordinates the rotational angle for defining empty rotation seat 9, thus can limit handle 8 commutation direction and
Commutate angle.
Claims (6)
1. a kind of automatic lock, including electric machine assembly and manual component, it is characterized in that：The manual component includes lock core, lock shaft, turns
Dynamic telescoping mechanism, drive link and mandril, with top, the drive link withstands mandril, the drive link configuration for the end of mandril
Have a resetting-mechanism that it is promoted to be resetted towards lock shaft direction, the mandril is configured with interior bar, interior bar and electronic building brick with merge by
It, which drives, drives drive link to stretch, and the rotation telescoping mechanism includes the screw rod of drive link tail portion and the nut of lock shaft front end, spiral shell
Bar enters in nut, and the nut rotation promotes screw rod to be moved forward and backward when the lock shaft rotates；The top alignment promotes handle
With drive lock tongue open transmission component carry out clutch action clutch, the top push and disengaging promotes clutch
Structure carries out clutch switching；Described that the transmission component that lock tongue is opened is driven to revolve seat for sky, the clutch includes shaft and empty rotation
Seat with clutch pin hole on sky rotation seat, is equipped with on-of pin in clutch pin hole, on-of pin is configured with that it is promoted to be displaced outwardly
Three resetting springs, the shaft are plugged in empty rotation seat endoporus, and on-of pin is directed in the shaft and offers connecting hole, the sky
Rotation seat is configured with the first torsional spring that it is promoted to reset always, and the shaft is configured with the second torsional spring that it is promoted to reset always, institute
The on-of pin alignment connecting hole, the handle when shaft resets is stated to connect with shaft；It is turned round with first the empty rotation seat bottom
Spring shifting block, there is the first torsional spring locating piece on bottom case, and the empty rotation seat rotation promotes the first torsional spring shifting block to stir the one of the first torsional spring
Foot, the another foot of the first torsional spring are stopped by the first torsional spring locating piece, so as to which the empty rotation seat tool be promoted to have reset function；Institute
It states empty rotation seat and is configured with handle reversing turntable, with locked groove on handle reversing turntable, locked groove is along handle reversing turntable circumferencial direction
It being uniformly distributed, the position of handle reversing turntable can be fixed with the matched closing piece of locked groove, closing piece after being inserted into locked groove by being provided on housing,
The closing piece is configured with push button, the shaft be set in handle reversing turntable and can the rotation of opposite handle reversing turntable, handle
With having the second limiting slot on the first limiting slot, empty rotation seat on reversing turntable, the first limiting slot and second is corresponded in the shaft
Limiting slot is provided with the first limited block, and the first limited block is in the first limiting slot and the second limiting slot, and is offered on bottom case
Three limiting slots, empty revolve are provided with the second limited block on seat, and the second limited block is in third limiting slot.
2. automatic lock according to claim 1, it is characterized in that：The drive link includes the montant being connected with each other and L shapes
Bar, the resetting-mechanism include (the first back-moving spring, and (the first back-moving spring is set to L shapes bar and the retaining wall being fixed on housing
Between.
3. automatic lock according to claim 1 or 2, it is characterized in that：The mandril include the outer bar that coordinates with drive link and
With the interior bar of electric machine assembly cooperation, interior bar is driven by motor, and the interior bar is configured with the 4th that it is promoted to reset downwards and resets bullet
Spring, the top are in crescent and are set to the end of outer bar.
4. automatic lock according to claim 1 or 2, it is characterized in that：The side of the drive link carries inclined-plane or cambered surface
The jacking block of setting corresponds to jacking block on housing and is provided with touch switch, and jacking block squeezes simultaneously during the drive link moves up
Trigger touch switch, touch switch connection audible alarm unit.
5. automatic lock according to claim 3, it is characterized in that：The side of the drive link is set with inclined-plane or cambered surface
Jacking block, correspond to jacking block on the housing and be provided with touch switch, jacking block squeezes simultaneously during the drive link moves up
Trigger touch switch, touch switch connection audible alarm unit.
6. automatic lock according to claim 1 or 2, it is characterized in that：The drive link and mandril, which are configured with, is set to housing
Interior guide groove, the drive link and mandril move in guide groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510723334.6A CN105464470B (en) | 2015-10-29 | 2015-10-29 | Automatic lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510723334.6A CN105464470B (en) | 2015-10-29 | 2015-10-29 | Automatic lock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105464470A CN105464470A (en) | 2016-04-06 |
| CN105464470B true CN105464470B (en) | 2018-06-26 |
Family
ID=55602584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510723334.6A Active CN105464470B (en) | 2015-10-29 | 2015-10-29 | Automatic lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105464470B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113153020B (en) * | 2016-12-15 | 2022-11-18 | 罗伯托·卡夫拉尔·埃雷拉 | Electronic sensor and key operated lock |
| CN107905629A (en) * | 2017-12-31 | 2018-04-13 | 广东金点原子安防科技股份有限公司 | A kind of pick-proof electronic lock |
| CN109441237A (en) * | 2018-12-18 | 2019-03-08 | 广东天固实业有限公司 | It is a kind of with anti-opal and the door latch structure for facilitating handle commutation function |
| CN110029876A (en) * | 2019-05-10 | 2019-07-19 | 孙家群 | A kind of multifunctional intellectual lock Isolating Switch |
| CN114458100B (en) * | 2022-02-15 | 2023-08-18 | 四川功将科技有限公司 | Antitheft lock tongue unlocking system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259463Y (en) * | 1996-02-09 | 1997-08-13 | 潘洪源 | Electromechanical two-purpose lock |
| US6487884B1 (en) * | 1998-06-11 | 2002-12-03 | Lockwood Security Products Pty, Limited | Electrically controlled lock |
| CN103498595A (en) * | 2013-10-22 | 2014-01-08 | 曹国基 | Lockset with aligning clutch |
| CN104563600A (en) * | 2015-01-07 | 2015-04-29 | 佛山市汇泰龙五金卫浴制造有限公司 | Door lock handle reversing device |
| CN204627178U (en) * | 2015-03-17 | 2015-09-09 | 德施曼机电（中国）有限公司 | A kind of combination clutch of electronic lock |
-
2015
- 2015-10-29 CN CN201510723334.6A patent/CN105464470B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2259463Y (en) * | 1996-02-09 | 1997-08-13 | 潘洪源 | Electromechanical two-purpose lock |
| US6487884B1 (en) * | 1998-06-11 | 2002-12-03 | Lockwood Security Products Pty, Limited | Electrically controlled lock |
| CN103498595A (en) * | 2013-10-22 | 2014-01-08 | 曹国基 | Lockset with aligning clutch |
| CN104563600A (en) * | 2015-01-07 | 2015-04-29 | 佛山市汇泰龙五金卫浴制造有限公司 | Door lock handle reversing device |
| CN204627178U (en) * | 2015-03-17 | 2015-09-09 | 德施曼机电（中国）有限公司 | A kind of combination clutch of electronic lock |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105464470A (en) | 2016-04-06 |
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Inventor after: Xu Huaisong Inventor after: Zhou Xingzhong Inventor after: Zhu Xiaochun Inventor after: Sun Xiaolin Inventor after: Dan Bo Inventor after: Mao Xianyou Inventor before: Sun Xiaolin |
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Inventor after: Xu Huaisong Inventor after: Zhou Xingzhong Inventor after: Zhu Xiaochun Inventor after: Sun Xiaolin Inventor after: Dan Bo Inventor after: Mao Xianyou Inventor before: Xu Huaisong Inventor before: Zhou Xingzhong Inventor before: Zhu Xiaochun Inventor before: Sun Xiaolin Inventor before: Dan Bo Inventor before: Mao Xianyou |
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Effective date of registration: 20191202 Address after: 314205 north side of the second floor, No.1 Cangqing Road, Xincang Town, Pinghu City, Jiaxing City, Zhejiang Province Patentee after: Zhejiang Eurasian Smart Home Technology Co., Ltd Address before: 211 Jing Wan garden, No. 3-402, Cang Xi Road, Longwan Economic Development Zone, Wenzhou, Zhejiang 325000, China Patentee before: Sun Xiaolin |