WO2001031150A1 - Electromechanical lock with a remote control - Google Patents

Electromechanical lock with a remote control Download PDF

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Publication number
WO2001031150A1
WO2001031150A1 PCT/BG2000/000008 BG0000008W WO0131150A1 WO 2001031150 A1 WO2001031150 A1 WO 2001031150A1 BG 0000008 W BG0000008 W BG 0000008W WO 0131150 A1 WO0131150 A1 WO 0131150A1
Authority
WO
WIPO (PCT)
Prior art keywords
alarm
pignon
orifice
latches
activating
Prior art date
Application number
PCT/BG2000/000008
Other languages
French (fr)
Inventor
Rangel Nicolov Petkov
Yossif Kamenov Yossifov
Kamen Yossifov Kamenov
Original Assignee
Rangel Nicolov Petkov
Yossif Kamenov Yossifov
Kamen Yossifov Kamenov
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rangel Nicolov Petkov, Yossif Kamenov Yossifov, Kamen Yossifov Kamenov filed Critical Rangel Nicolov Petkov
Priority to AU34106/00A priority Critical patent/AU3410600A/en
Publication of WO2001031150A1 publication Critical patent/WO2001031150A1/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014—Constructional features of actuators or power transmissions therefor
    • E05B2047/0018—Details of actuator transmissions
    • E05B2047/002—Geared transmissions
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048—Circuits, feeding, monitoring
    • E05B2047/0067—Monitoring
    • E05B2047/0069—Monitoring bolt position
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B45/00—Alarm locks
    • E05B45/06—Electric alarm locks
    • E05B45/08—Electric alarm locks with contact making inside the lock or in the striking plate
    • E05B45/083—Electric alarm locks with contact making inside the lock or in the striking plate with contact making either in the striking plate or by movement of the bolt relative to the striking plate
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/00174—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00769—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means
    • G07C2009/00793—Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by wireless means by Hertzian waves

Definitions

  • the invention represents an electromechanical lock with remote control as an additional locking system invisible from outside and applicable for increasing at considerable extent the safe indeterminateless of any kind of standard door.
  • a lock consisting of a "cartridge-case” /bush with mounted to it cogwheel to which are connected one or more racks.
  • Each one of the racks is stiffly connected with a respective latch and is fixed by means of a clammer-locking-finger toward the cogwheel having a constant meshing with it.
  • the lock includes also a blocking cover-plate with electrical magnet connected indirectly to the rack [1],
  • a defect of this known lock is that it could not provide complete protection against unlocking by means of a master-key and when the cartridge-case is broken the unlocking can be made with simple auxiliary gadgets.
  • Another electromechanical lock applied consisting of a locking mechanism connected to an electrical engine run by a micro-processor according to a code from a control panel which one is outside the locked room [2], [3].
  • a defect of this electromechanical lock is that the code number can be seen and the panel is accessible and can be manipulated.
  • Block systems /interlocks/ run from a distance for locking devices which consist of a small transmitter of coded signals, a decoding receiver connected to a controlling center of an electrical magnet or engine which one activates a blocking finger [4].
  • a defect of said run remotely blocking systems to locking devices is that when the electrical magnet or engine are out of order the door must be cut in order to be opened.
  • the aim of the invention is: making an electromechanical lock with a remote control mountable to doors with standard locks as an invisible and inaccessible from outside locking mechanism, in order the respective owner to put it on a spot chosen by him on any place of the inner vertical surface of the door allowing the door to be easily opened in case of any failure.
  • Said task is realized in the following way: in a hollow metallic beam with a chute, closed profile, fixed on the inside part of the door are disposed a kind of rails on which are slided from the inside toward the outside latches connected with the racks placed in the beam which ones are meshed to a cogwheel, which one by means of moving on the axle of the cogwheel - pignon in a groove-way connected with the shaft of an el-gear motor fixed on the beam whilst, the latches moving toward outside enter orifices of blocklets fixed on the door-frame and the adjoining wall and the el-motor by means of final "off-switching keys" and a device for reverse nmning - is connected with a receiver of coded electromagnetic signals within radio or infra-red light range which are originated by one or more miniature transmitters for a remote control of the el-motor.
  • the signal for locking is connected also with the input for activating the stand-by position of the alarming device connected with activating pressure-sensors placed within the blocklets over the edges of the latches; and the signal for unlocking is connected also with the input for switching off the alarm and also with the input for activating the alarm - are connected by conductors two insulated electrical and sticked together metallic plates connected with a resistor of specific value. The two plates are positioned in the beam between an orifice in it and the pignon - the orifice is co-axled with the pignon and is bigger than its section. On the orifice on the pignon axle at this edge there is a "bolt-like carving". To an out-let of the alarm device a hooter and a block of telephone-alarm are connected.
  • the electricity-supply is provided through a lowering transformer from the grid and is insured by an accumulator battery.
  • Fig.2 - shows in a cross-section on the axle of the electrical engine the elements of movement and controlling.
  • Fig.3 - shows the block circuitry for a remote control.
  • the electromechanical lock with a remote control shown on fig. 1 which is fixed on the inner side of the door consists of a hollow metallic beam of chut closed profile 1 in which are disposed rails 2, 4 on which slide from the inside toward the outside latches 3 connected with the racks 6 placed in the beam which ones are meshed to a cogwheel 9 which one is a kind of a bearing in carrying part 7 and a kind of plate 11.
  • the cogwheel - by means of moving on its axle polyhedral pignon 12 in a groove-way - is connected with the shaft of an el-gear motor 17 fixed on the beam 1, as shown on fig. 2.
  • the latches 3 moving toward outside enter orifices of blocklets 18 fixed on the door-frame and the adjoining wall.
  • the el-gear motor 17 - by means of final "off-switcWng keys" 8, 10 and a device for reverse running 25, shown on fig.3 - is connected with a receiver 22 of coded electromagnetic signals within radio or infra-red light range which are produced by one or more miniature transmitters 21 for a remote control of the electrical engine.
  • the signal for locking is connected also with the input for activating the stand-by position of the alarming device 26 connected with activating pressure-sensors 19 placed within the blocklets 18 over the edges of the latches 3; and the signal for unlocking is connected also with the input for switching off the alarm and also with the input for activating the alarm - are connected by conductors two electrically insulated by folio 15 and sticked together metallic plates 13 and 14 connected with a resistor 16 of specific value.
  • the two plates 13 and 14 are positioned on the carrying part 7 in the beam 1 between an orifice in it and the pignon 12 - the orifice is co-axled with the pignon 12 and is bigger than its section.
  • a hooter 27 and a block of telephone-alarm 28 are connected to an outlet of the alarm device 26 .
  • the electricity-supply 23 is provided through a lowering transformer from the grid and is insured by an accumulator battery 24.
  • the electromechanical lock with remote control shown on fig.l is placed on the inner side of a door having ordinary lock by means of a cross-beam and there is no part of it visible and accessible for a direct contact from outside.
  • the latches 3 disposed in beam having a closed metallic profile 1 are moved through racks 6 by cogwheel 9.
  • the cogwheel 9 is moving in a bearing-like way in the carrying part 7 and plate 11 and is twirl by means of a moving on its axle polyherdal pignon 12 which is connected in a groove-way with the shaft of the el-gear motor 17.
  • the el- gear motor 17 is switchable for a determined time by means of final "off- switching keys" 8, 10. From the device for reverse running 25 - in case of command of locking or unlocking received remotely from a decoding receiver 22 - and sent in a form of coded electromagnetic signals within radio or infra-red light range transmitter 21 /pressing respective keys/. The signal for locking also activates the stand-by position of the alarming device 26.
  • the alarming device can be activated in case of aggressive pressure against the door which makes the latches 3 with their edges to activate the pressure-sensors 19 placed within the blocklets 18.
  • the alarm is activated also when a contact is produced - between plates 13 and 14 disposed on the carrying part 7 - which happens when someone intends to make a hole in the door and open forcibly.
  • resistor 16 By means of resistor 16 a control is provided for impeding any cutting of the conductors 20.
  • siren 27 is switched on as well as the telephone-alarm block 28.
  • the electricity-supply 23 is provided through a lowering transformer and rectifier from the grid and is insured by an accumulator battery 24. For an emergency opening of the door the owner must know the precise coordinates of the axle of the el-gear motor referred to the outside doorframe.

Abstract

An electromechanical lock with remote control is on offer being a locking system, invisible from the outside, additional for standard doors, consisting of a hollow metallic beam (1) of closed profile, in which are positioned rails (2, 4) on which slide from inside toward outside latches (3) connected with placed inside the beam racks (6). The racks are clutched to a cogwheel (9) which one is connected in a groove-way by means of a polyherdal pignon (12), with the shaft of an el-gear motor (17). The el-gear motor (17) is fixed to beam (1). The latches (3) going out enter the orifices of blocklets (18) fixed on the door-frame and the adjoining wall. The electrical engine is remotely run/controlled. The signal for locking is connected with the input for activating the stand-by position of the alarming device (26) connected with activating pressure-sensors (19) placed within the blocklets (18) over the edges of the latches (3); and the signal for unlocking is connected also with the input for switching off the alarm and also with the input for activating the alarm - are connected by conductors two electrically insulated by folio (15) and sticked together metallic plates (13) and (14) connected with a resistor (16) having a specific value. The two plates (13) and (14) are positioned on the carrying part (7) in the beam (1) between an orifice in it and the pignon (12). On the orifice on the (12) pignon axle - on the side of the plates there is a 'bolt-like carving'.

Description

ELECTROMECHANICAL LOCK WITH A REMOTE CONTROL
FIELD OF THE IVENTION The invention represents an electromechanical lock with remote control as an additional locking system invisible from outside and applicable for increasing at considerable extent the safe indeterminateless of any kind of standard door.
BACKGRAUND OF THE INVENTION Well-known is a lock consisting of a "cartridge-case" /bush with mounted to it cogwheel to which are connected one or more racks. Each one of the racks is stiffly connected with a respective latch and is fixed by means of a clammer-locking-finger toward the cogwheel having a constant meshing with it. The lock includes also a blocking cover-plate with electrical magnet connected indirectly to the rack [1],
A defect of this known lock is that it could not provide complete protection against unlocking by means of a master-key and when the cartridge-case is broken the unlocking can be made with simple auxiliary gadgets. There is another electromechanical lock applied consisting of a locking mechanism connected to an electrical engine run by a micro-processor according to a code from a control panel which one is outside the locked room [2], [3].
A defect of this electromechanical lock is that the code number can be seen and the panel is accessible and can be manipulated.
There are also block systems /interlocks/ run from a distance for locking devices which consist of a small transmitter of coded signals, a decoding receiver connected to a controlling center of an electrical magnet or engine which one activates a blocking finger [4].
A defect of said run remotely blocking systems to locking devices is that when the electrical magnet or engine are out of order the door must be cut in order to be opened.
SUMMARY OF THE INVENTION The aim of the invention is: making an electromechanical lock with a remote control mountable to doors with standard locks as an invisible and inaccessible from outside locking mechanism, in order the respective owner to put it on a spot chosen by him on any place of the inner vertical surface of the door allowing the door to be easily opened in case of any failure. Said task is realized in the following way: in a hollow metallic beam with a chute, closed profile, fixed on the inside part of the door are disposed a kind of rails on which are slided from the inside toward the outside latches connected with the racks placed in the beam which ones are meshed to a cogwheel, which one by means of moving on the axle of the cogwheel - pignon in a groove-way connected with the shaft of an el-gear motor fixed on the beam whilst, the latches moving toward outside enter orifices of blocklets fixed on the door-frame and the adjoining wall and the el-motor by means of final "off-switching keys" and a device for reverse nmning - is connected with a receiver of coded electromagnetic signals within radio or infra-red light range which are originated by one or more miniature transmitters for a remote control of the el-motor. The signal for locking is connected also with the input for activating the stand-by position of the alarming device connected with activating pressure-sensors placed within the blocklets over the edges of the latches; and the signal for unlocking is connected also with the input for switching off the alarm and also with the input for activating the alarm - are connected by conductors two insulated electrical and sticked together metallic plates connected with a resistor of specific value. The two plates are positioned in the beam between an orifice in it and the pignon - the orifice is co-axled with the pignon and is bigger than its section. On the orifice on the pignon axle at this edge there is a "bolt-like carving". To an out-let of the alarm device a hooter and a block of telephone-alarm are connected.
The electricity-supply is provided through a lowering transformer from the grid and is insured by an accumulator battery.
BRIEF DESCRIPTION OF THE DRAWINGS Fig.1 - presents the electromechanical lock.
Fig.2 - shows in a cross-section on the axle of the electrical engine the elements of movement and controlling. Fig.3 - shows the block circuitry for a remote control.
DESCRIPTION OF THE INVENTION The electromechanical lock with a remote control shown on fig. 1 which is fixed on the inner side of the door consists of a hollow metallic beam of chut closed profile 1 in which are disposed rails 2, 4 on which slide from the inside toward the outside latches 3 connected with the racks 6 placed in the beam which ones are meshed to a cogwheel 9 which one is a kind of a bearing in carrying part 7 and a kind of plate 11. The cogwheel - by means of moving on its axle polyhedral pignon 12 in a groove-way - is connected with the shaft of an el-gear motor 17 fixed on the beam 1, as shown on fig. 2. The latches 3 moving toward outside enter orifices of blocklets 18 fixed on the door-frame and the adjoining wall. The el-gear motor 17 - by means of final "off-switcWng keys" 8, 10 and a device for reverse running 25, shown on fig.3 - is connected with a receiver 22 of coded electromagnetic signals within radio or infra-red light range which are produced by one or more miniature transmitters 21 for a remote control of the electrical engine. The signal for locking is connected also with the input for activating the stand-by position of the alarming device 26 connected with activating pressure-sensors 19 placed within the blocklets 18 over the edges of the latches 3; and the signal for unlocking is connected also with the input for switching off the alarm and also with the input for activating the alarm - are connected by conductors two electrically insulated by folio 15 and sticked together metallic plates 13 and 14 connected with a resistor 16 of specific value. The two plates 13 and 14 are positioned on the carrying part 7 in the beam 1 between an orifice in it and the pignon 12 - the orifice is co-axled with the pignon 12 and is bigger than its section. On the orifice on the 12 pignon axle at this edge there is a "bolt-like carving". To an outlet of the alarm device 26 a hooter 27 and a block of telephone-alarm 28 are connected. The electricity-supply 23 is provided through a lowering transformer from the grid and is insured by an accumulator battery 24.
Application and ways of operation The electromechanical lock with remote control shown on fig.l, is placed on the inner side of a door having ordinary lock by means of a cross-beam and there is no part of it visible and accessible for a direct contact from outside. The latches 3 disposed in beam having a closed metallic profile 1 are moved through racks 6 by cogwheel 9. When going outwards they enter the orifices of blocklets 18 fixed on the door-frame and the adjoining wall. The cogwheel 9 is moving in a bearing-like way in the carrying part 7 and plate 11 and is twirl by means of a moving on its axle polyherdal pignon 12 which is connected in a groove-way with the shaft of the el-gear motor 17. The el- gear motor 17 is switchable for a determined time by means of final "off- switching keys" 8, 10. From the device for reverse running 25 - in case of command of locking or unlocking received remotely from a decoding receiver 22 - and sent in a form of coded electromagnetic signals within radio or infra-red light range transmitter 21 /pressing respective keys/. The signal for locking also activates the stand-by position of the alarming device 26. The alarming device can be activated in case of aggressive pressure against the door which makes the latches 3 with their edges to activate the pressure-sensors 19 placed within the blocklets 18. The alarm is activated also when a contact is produced - between plates 13 and 14 disposed on the carrying part 7 - which happens when someone intends to make a hole in the door and open forcibly. By means of resistor 16 a control is provided for impeding any cutting of the conductors 20. When the alarm device 26 is activated siren 27 is switched on as well as the telephone-alarm block 28. The electricity-supply 23 is provided through a lowering transformer and rectifier from the grid and is insured by an accumulator battery 24. For an emergency opening of the door the owner must know the precise coordinates of the axle of the el-gear motor referred to the outside doorframe. With a button for opening pressed by means of the remote transmitter 21 after boring a hole through the door and the plates 13, 14 and 15, an access is provided to the orifice with a "bolt-like carving" in pignon 12. After screwing a helix/screw in the "carving" the pignon is drawn outside and on its place a key having the same section is to be put and by means of it cogwheel 9 should be manually turned till opening the door.

Claims

1. The electromechanical lock with remote control consisting of a hollow metallic beam (1) in which are positioned rails (2), (4) on which slide from inside toward outside latches (3) connected with placed inside the beam racks (6) clutched to a cogwheel (9), is characterized by the features that the cogwheel (9) disposed in a bearing-like way in a carrying part (7) and plate (11) by means of a polyherdal pignon (12) moving on the cogwheel axle/shaft, in a groove- way it is connected with the shaft of the el-gear motor
(17) fixed to beam (1) as the latches (3) going out enter the orifices of blocklets (18) fixed on the door-frame and the adjoining wall and the el-gear motor (17) - by means of final "off-switching keys" (8), (10) and a device for reverse running (25) - is connected with a decoding receiver (22) of coded electromagnetic signals within radio or infra-red light range which are produced by one or more miniature transmitters (21) for a remote control of the electrical engine and the signal for locking is connected also with the input for activating the stand-by position of the alarming device (26) connected with activating pressure-sensors (19) placed within the blocklets
(18) over the edges of the latches (3); and the signal for unlocking is connected also with the input for switching off the alarm and also with the input for activating the alarm are connected by conductors two electrically insulated by folio (15) and sticked together metallic plates (13) and (14) connected with a resistor (16) having a specific value as the plates (13) and (14) are positioned on the carrying part (7) in the beam (1) between an orifice in it and the pignon (12) - the orifice is co-axled with the pignon (12) and is bigger than its section and on the orifice on the (12) pignon axle - on the side of the plates there is a "bolt-like carving".
2. The electromechanical lock according to claim 1 represents a lock consisting of a metallic beam (1) transverse to an entrance door placed on the inner side of a dwelling.
3. The electromechanical lock according to claim 1, characterized by the features that the metallic beam (1) consists of closed extruded profile.
4. The electromechanical lock according to claim 1, characterized by the features that the blocklets (18) fixed on the door-frame and the adjoining wall consist of a body with an orifice in which enters latch (3) when locked; in the orifice between the latch and the inner side of the body a pressure- sensor (19) is placed which one is connected with alarm (26) which alarm is connected for respectively be activated and disactivated by the signals of locking and unlocking of a transmitter (21) received at the output of a decoding receiver (22) as the electricity supply (23) is provided by a lowering transformer and rectifier from the grid and is insured by accumulator battery (24) and to an output of the alarm device a hooter (27) and a block of telephone-alarm (28) are connected.
PCT/BG2000/000008 1999-10-27 2000-03-23 Electromechanical lock with a remote control WO2001031150A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU34106/00A AU3410600A (en) 1999-10-27 2000-03-23 Electromechanical lock with a remote control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BG103836A BG64064B1 (en) 1999-10-27 1999-10-27 Remote-controlled electromechanical doorlock
BG103836 1999-10-27

Publications (1)

Publication Number Publication Date
WO2001031150A1 true WO2001031150A1 (en) 2001-05-03

Family

ID=3927923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/BG2000/000008 WO2001031150A1 (en) 1999-10-27 2000-03-23 Electromechanical lock with a remote control

Country Status (3)

Country Link
AU (1) AU3410600A (en)
BG (1) BG64064B1 (en)
WO (1) WO2001031150A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110379056A (en) * 2019-07-12 2019-10-25 移康智能科技（上海）股份有限公司 Smart lock pick-proof method
US10947756B2 (en) 2017-05-10 2021-03-16 R.R. Brink Locking Systems, Inc. Electromechanical lock with mechanical latch holdback and remote release
CN114135199A (en) * 2021-11-29 2022-03-04 上海华力集成电路制造有限公司 Door plate assembly for dust-free workshop equipment

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594637A (en) * 1985-02-21 1986-06-10 Sidney Falk Digital electronic lock system
EP0494472A1 (en) * 1991-01-04 1992-07-15 Chubb Lips Nederland Bv Locks
EP0566385A1 (en) * 1992-04-16 1993-10-20 Abloy Security Ltd. Oy Electromechanical lock arrangement
FR2740165A1 (en) * 1995-10-18 1997-04-25 Blanchard Christian Motorised locking system for doors of apartment building
WO1999014457A1 (en) * 1997-09-16 1999-03-25 Chen Zoor Yosi A door lock system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4594637A (en) * 1985-02-21 1986-06-10 Sidney Falk Digital electronic lock system
EP0494472A1 (en) * 1991-01-04 1992-07-15 Chubb Lips Nederland Bv Locks
EP0566385A1 (en) * 1992-04-16 1993-10-20 Abloy Security Ltd. Oy Electromechanical lock arrangement
FR2740165A1 (en) * 1995-10-18 1997-04-25 Blanchard Christian Motorised locking system for doors of apartment building
WO1999014457A1 (en) * 1997-09-16 1999-03-25 Chen Zoor Yosi A door lock system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10947756B2 (en) 2017-05-10 2021-03-16 R.R. Brink Locking Systems, Inc. Electromechanical lock with mechanical latch holdback and remote release
CN110379056A (en) * 2019-07-12 2019-10-25 移康智能科技（上海）股份有限公司 Smart lock pick-proof method
CN114135199A (en) * 2021-11-29 2022-03-04 上海华力集成电路制造有限公司 Door plate assembly for dust-free workshop equipment

Also Published As

Publication number Publication date
BG64064B1 (en) 2003-11-28
AU3410600A (en) 2001-05-08
BG103836A (en) 2001-04-30

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