CN107816252A - Lock core disengaging type device - Google Patents

Lock core disengaging type device Download PDF

Info

Publication number
CN107816252A
CN107816252A CN201710254121.2A CN201710254121A CN107816252A CN 107816252 A CN107816252 A CN 107816252A CN 201710254121 A CN201710254121 A CN 201710254121A CN 107816252 A CN107816252 A CN 107816252A
Authority
CN
China
Prior art keywords
lock core
connector
shift fork
rotation axis
lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710254121.2A
Other languages
Chinese (zh)
Other versions
CN107816252B (en
Inventor
彭拯和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Inter-Rock Electrical Manufacturing Co Ltd
Original Assignee
Shanghai Inter-Rock Electrical Manufacturing Co Ltd
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 Shanghai Inter-Rock Electrical Manufacturing Co Ltd filed Critical Shanghai Inter-Rock Electrical Manufacturing Co Ltd
Priority to CN201710254121.2A priority Critical patent/CN107816252B/en
Publication of CN107816252A publication Critical patent/CN107816252A/en
Application granted granted Critical
Publication of CN107816252B publication Critical patent/CN107816252B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00Other details of locks; Parts for engagement by bolts of fastening devices
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B2047/0014Constructional features of actuators or power transmissions therefor
    • E05B2047/0018Details of actuator transmissions
    • E05B2047/0026Clutches, couplings or braking arrangements

Landscapes

  • Lock And Its Accessories (AREA)

Abstract

The present invention relates to lock technology field, and in particular to a kind of lock core disengaging type device.Lock core disengaging type device, including the shift fork set in lock body, lock core and rotation axis are located at the left and right sides of shift fork, rotation axis is connected and rotated coaxially with shift fork, lock core and shift fork are independent isolating construction, the chamber of left and right insertion is provided with shift fork, its left part is provided with lock core connector, rotation axis left part penetrates from the right part opening of shift fork chamber, the axle of motor on the right side of rotation axis passes through hollow structure, end is located at the right side of lock core connector, is arranged knob mandrel connector on the external screw thread of motor shaft, it is caught in the neck on rotation axis by the latch of outer wall;The right part of lock core is provided with the standing groove of opening to the right, and a spring is provided with it, and the right-hand member of spring is contradicted on lock core connector.Because using above-mentioned technical proposal, the present invention is simple in construction, easy to use, and its safe effect is better than conventional lock, and fabricates easily, easy to spread.

Description

Lock core disengaging type device
Technical field
The present invention relates to lock technology field, and in particular to a kind of lock core disengaging type device.
Background technology
Lockset is the too busy to get away safety guarantee apparatus of people's daily life, and the first line of defence of family's door.Tradition Lockset is provided with lock core, shift fork and rotation axis in its lock body, and lock core and rotation axis are respectively arranged at the left and right sides of shift fork, lock Core, shift fork and rotation axis can rotate coaxially.After key is inserted in lock core, matched by the groove in the key lever of key and projection The upper and lower pellet in core is stirred, the upper and lower pellet of correspondence position in itself and lock body is upwardly or downwardly produced displacement together Upper pellet or lower pellet are removed from blocking position afterwards, so that lock core drives shift fork rotation after being able to rotation, it is final to open Lockset.Rotation axis then connects lock handle, drives shift fork to rotate by twisting lock handle in another side direction relative to lock core, so as to real The unlatching of existing lockset.
The lock core and shift fork of traditional structure link together, as long as being capable of rotary locking cylinder, you can open lockset.This kind of lockset It can conveniently be opened by simple instrument and unlocking skill, the imitative of corresponding groove and projection carried by being inserted in lock core Key or similar structures object processed, you can prize the upper pellet in lock core or lower pellet, so as to open lockset, therefore it is pacified Full property is relatively low.Today that conventional lock gradually develops in lockset technology, the ability of its safety guarantee is more and more lower, in the market Need the lockset of more security and theftproof performance.
The content of the invention
It is an object of the present invention to provide a kind of lock core disengaging type device, solves above technical problem.
Technical problem solved by the invention can be realized using following technical scheme:
Lockset is realized in lock core disengaging type device, including lock core, shift fork and the rotation axis set in lock body, the rotation of shift fork Open and lock, lock core and rotation axis be respectively arranged at the left and right sides of shift fork, and rotation axis is connected and rotated coaxially with shift fork, Characterized in that, rotation axis is the rotation axis of hollow structure, its both ends open, lock core and shift fork are independent isolating construction, are dialled Shift fork chamber provided with left and right insertion in fork, chamber left part are provided with a lock core connection for being used to make lock core connect with shift fork after movement Device, the left end of rotation axis stretch into from the right part opening of shift fork chamber, are provided with a motor on the right side of rotation axis, motor shaft passes through rotation axis Hollow structure after the motor shaft end that makes to stretch out to the left be located at the right side of lock core connector, stop that lock core connector moves right Dynamic, motor shaft is provided with external screw thread, is arranged a knob mandrel connector thereon, and both is are threadedly coupled, the outer wall of knob mandrel connector Latch provided with evagination, rotation axis is provided with the neck that the latch being easy on knob mandrel connector is caught in, when motor shaft rotates, rotation Button mandrel connector can not be as motor shaft rotates together because latch is stuck in neck, therefore is screwed out to the left or to dextrorotation Enter, its screw out to the left to during motor shaft end with promoting it to be moved to the left therewith after lock core connector contact, the right side of lock core The standing groove that lock core connector stretches into is easy to provided with one in portion, and to the right, its interior telescopic direction that is provided with is left and right to the opening of standing groove The spring in direction, spring right-hand member are contradicted on lock core connector, and the lock core for being promoted by knob mandrel connector and being moved to the left connects A part of structure for connecing device is stretched into standing groove, and another part is still in the shift fork, it is achieved thereby that lock core and shift fork Connection, lock core connector use the non-circular straight cylinder structure in cross section, and the structure of the internal chamber of standing groove is connected with lock core The contour structures matching of device, it is easy to make lock core connector to stretch into after standing groove and realizes the coaxially connected of lock core and shift fork, in lock core Make shift fork coaxial rotating during rotation.
The present invention forms clutch dress by setting lock core connector and knob mandrel connector after coordinating motor and its rotating shaft The separation or connection for realizing shift fork and lock core are put, the lock core and shift fork after connection can rotate coaxially, when initial, lock core and shift fork For released state, lock core connector is promoted to the right and contradicted in motor shaft end, motor shaft by the restoring force of the spring in lock core When rotating counterclockwise, lock core connector is moved to the left under the promotion of knob mandrel connector, and finally realizes shift fork and lock core Connection, now, spring is in compressive state to the left;When motor shaft rotates clockwise, knob mandrel connector is connected by precession to the right, lock core Connect device now to be promoted to the right by the restoring force of spring to the right, and finally contradict in motor shaft end.
Preferably, lock core connector uses straight cylinder knot of the cross section for triangle, quadrangle, pentagon or hexagon Structure.
The depth of the standing groove is less than the length of lock core connector, and the length of lock core connector is the length of left and right directions Degree, the depth of standing groove are the depth of left and right directions.
Preferably, the depth of the standing groove is the half of the length of the lock core connector, to make lock core connector When stretching into standing groove and making amount of spring compression maximum, the length of its nearly half is stretched into standing groove.
The length of the knob mandrel connector is more than the half of the thickness of the lock core connector, the length of knob mandrel connector Degree direction is left and right directions.
Preferably, the length of the knob mandrel connector is equal to the thickness of the lock core connector.
A spring pedestal for being easy to fixed spring left end is provided with the standing groove.
The external edge edge of the opening of the standing groove to the right is provided with chamfering, the external edge of the left side of the lock core connector Along chamfering is set, it is easy to lock core connector to stretch into positioning and guiding when in standing groove.
A key is provided with what the lock core coordinated, the control circuit for being used for sending a signal to motor is provided with the key The signal sending circuit of its work is driven afterwards.
The conductive contact being connected with the control circuit of motor is provided with the lock core, the key lever of the key is provided with and institute Another group of conductive contact of signal sending circuit connection is stated, a pair of the conductive contact 1 on conductive contact and key lever in lock core Should, the loop between signal sending circuit and circuit for controlling motor is formed after key insertion lock core, it is motor-driven so as to send Signal, shift fork is set to be connected with lock core after being worked so as to motor, after key is extracted, the control circuit of motor does not receive driving After signal, rotate backward motor, to separate lock core and shift fork.
Beneficial effect:Because using above-mentioned technical proposal, the present invention is simple in construction, easy to use, not matched Have motor work circuit in the case of can not be opened by the way of traditional, its safe effect is better than traditional locks Tool, and fabricate easily, it is easy to spread.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Conjunction, which is specifically illustrating, is expanded on further the present invention.
Lock core 1, shift fork 2 and the rotation axis 3 set in reference picture 1, lock core disengaging type device, including lock body 9, shift fork 1 Rotation realize the open and lock of lockset, lock core 1 and rotation axis 3 are respectively arranged at the left and right sides of shift fork 2, rotation axis 3 with Shift fork 2 is connected and rotated coaxially, and rotation axis 3 is hollow structure, its both ends open.Lock core 1 and shift fork 2 are independent separation knot Structure.Shift fork chamber provided with left and right insertion in shift fork 2, chamber left part are provided with the lock for being used for connecting lock core 1 and shift fork 2 after movement Core connector 4, the left end of rotation axis 3 penetrate from the right part opening of shift fork chamber, and the right side of rotation axis 3 is provided with motor 5, and motor shaft 51 is worn The motor the tip of the axis that crossing after the hollow structure of rotation axis 3 makes to stretch out to the left is located at the right side of lock core connector 4, lock core connector 4 are stopped by motor shaft end, can not continue to move right, and motor shaft 51 is provided with external screw thread, is arranged knob mandrel connector thereon 6, knob mandrel connector 6 and motor shaft 51 are threaded connection.The outer wall of knob mandrel connector 6 is provided with the latch of evagination, rotation axis 3 The neck that the latch being easy on knob mandrel connector 6 is caught in is provided with, when motor shaft 51 rotates, knob mandrel connector 6 is due to card Tooth be stuck in neck and can not be as motor shaft 51 rotates together, therefore screwed out to the left or precession to the right, it is screwed out to the left Pushing lock cylinder connector 4 is moved to the left therewith after being contacted during to motor shaft end with lock core connector 4;The right part of lock core 1 Provided with an opening standing groove to the right, the setting of standing groove is easy to lock core connector 4 to be pushed into wherein to realize lock core and shift fork afterwards Connection and make both link, i.e., when lock core rotates because of the twisting of key, also and then rotate coaxially.Therefore, lock core is connected The profile for connecing device 4 is designed as the non-circular upstanding post-like structure in cross section, according to the big of the length of lock core connector 4 and torsion It is small, straight cylinder of the cross section for the polygonized structure of triangle, quadrangle, pentagon or hexagon is may be configured as, will be placed The inner chamber of groove is arranged to the structure matched with the contour structures of lock core connector 4, can after lock core connector 4 is stretched into standing groove Form close attachment structure, so as to realize make when lock core 1 rotates twisting torque conduct to shift fork 2 after driven coaxial turn Dynamic effect.The depth of standing groove is less than the length of lock core connector 4, wherein, place direction and the lock core connector 4 of groove depth The direction of length is left and right directions.Preferably, the half that groove depth is arranged to the length of lock core connector 4 is placed.
It is easy to the spring pedestal 71 of the left end of fixed spring 7 in standing groove provided with spring 7 and one.The telescopic direction of spring 7 is Left and right directions, its right-hand member are contradicted on lock core connector 4, and lock core connector 4 is moved to the left by the promotion of knob mandrel connector 6 And when the part for lock core connector 4 is fallen into standing groove the connection for realizing shift fork 2 and lock core 1, spring 7 is compressed, When knob mandrel connector 6 is inversely screwed out, the restoring force pushing lock cylinder connector 4 of spring 7 moves right and returns to shift fork 2 Chamber in, that is, be disconnected the connection of lock core and shift fork, in the present invention, spring 7 is not fixedly connected with lock core connector, Only contact on the outer wall of lock core connector left side.In the present invention, for make lock core connector 4 stretch into standing groove process it is steady Smoothly, the external edge of the opening in standing groove to the right is set along chamfering is set on the external edge edge of the left side of lock core connector 4 Chamfering.
A key is provided with what lock core 1 coordinated, is driven after being provided with the control circuit for being used for sending a signal to motor in key The signal sending circuit of its work.The conductive contact being connected with the control circuit of motor 5 is provided with lock core 1, in the key lever of key Provided with another group of conductive contact being connected with signal sending circuit, the conductive contact one on conductive contact and key lever in lock core 1 One correspondence, key form the loop between signal sending circuit and circuit for controlling motor after inserting lock core 1, driven so as to send motor Dynamic signal, connect shift fork 2 and lock core 1 after being worked so as to motor, after key is extracted, the control circuit of motor 5 receives After drive signal, rotate backward motor 5, to separate lock core 1 and shift fork 2.
The present invention forms clutch dress by setting lock core connector and knob mandrel connector after coordinating motor and its rotating shaft The separation or connection for realizing shift fork and lock core are put, the lock core and shift fork after connection can rotate coaxially, when initial, lock core and shift fork For released state, lock core connector is promoted to the right and contradicted inverse in motor shaft end, motor shaft by the elastic force of the spring in lock core When hour hands rotate, knob mandrel connector is screwed out to the left, and lock core connector is moved to the left simultaneously under the promotion of knob mandrel connector Finally by the push-in standing groove of part, the coaxially connected of shift fork and lock core is realized, now, spring is in compressive state to the left;Work as key After spoon is pulled out, the motor drive motor shaft for losing unlocking signal rotates clockwise, and knob mandrel connector is connected by precession to the right, lock core Connect device now to be promoted to the right by the restoring force of spring to the right, and contradicted after finally removing standing groove in motor shaft end, realize and dial The separation of fork and lock core.
General principle, principal character and the advantages of the present invention of the present invention has been shown and described in the above.The industry For technical staff it should be appreciated that the present invention is not limited to the above embodiments, described in above-described embodiment and specification is to say Bright principle of the invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, this A little changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims And its equivalent thereof.

Claims (10)

1. lock core disengaging type device, including lock core, shift fork and the rotation axis set in lock body, lockset is realized in the rotation of shift fork Open and lock, lock core and rotation axis are respectively arranged at the left and right sides of shift fork, and rotation axis is connected and rotated coaxially with shift fork, its It is characterised by, rotation axis is the rotation axis of hollow structure, its both ends open, and lock core and shift fork are independent isolating construction, shift fork The interior shift fork chamber provided with left and right insertion, chamber left part are provided with a lock core connection for being used to make lock core connect with shift fork after movement Device, the left end of rotation axis penetrate from the right part opening of shift fork chamber, are provided with a motor on the right side of rotation axis, motor shaft passes through rotation axis Hollow structure after the motor shaft end that makes to stretch out to the left be located at the right side of lock core connector, motor shaft is provided with external screw thread, thereon A knob mandrel connector is arranged, both are threadedly coupled, and the outer wall of knob mandrel connector is provided with the latch of evagination, and rotation axis is provided with The neck that the latch being easy on knob mandrel connector is caught in, the right part of lock core are easy to the placement that lock core connector stretches into provided with one Groove, it is open to the right, is contradicted in standing groove provided with the spring that a telescopic direction is left and right directions, its right-hand member in lock core connector On, lock core connector uses the non-circular straight cylinder structure in cross section, and the structure setting of the internal chamber of standing groove is and lock core The matching of the contour structures of connector, so that lock core connector realizes that lock core and shift fork are coaxially connected after stretching into standing groove.
2. lock core according to claim 1 disengaging type device, it is characterised in that lock core connector uses cross section as three Side shape, quadrangle, the straight cylinder structure of pentagon or hexagon.
3. lock core according to claim 1 disengaging type device, it is characterised in that the depth of the standing groove is less than lock core The length of connector, the length direction of lock core connector and the depth direction of standing groove are left and right directions.
4. lock core according to claim 3 disengaging type device, it is characterised in that the depth of the standing groove is the lock The half of the length of core connector.
5. lock core according to claim 3 disengaging type device, it is characterised in that the length of the knob mandrel connector is big In the half of the thickness of the lock core connector, the length direction of the knob mandrel connector is left and right directions.
6. lock core according to claim 5 disengaging type device, it is characterised in that length of the knob mandrel connector etc. In the thickness of the lock core connector.
7. the lock core disengaging type device according to any one of claim 1 to 6, it is characterised in that the standing groove is to the right Opening external edge along being provided with chamfering, the external edge of the left side of the lock core connector is along setting chamfering.
8. the lock core disengaging type device according to any one of claim 7, it is characterised in that one is provided with the standing groove It is easy to the spring pedestal of fixed spring left end.
9. lock core according to claim 8 disengaging type device, it is characterised in that be provided with a key with what the lock core coordinated Spoon, the key are interior provided with the signal sending circuit that its work is driven after the control circuit for being used to send a signal to motor.
10. lock core according to claim 9 disengaging type device, it is characterised in that be provided with and motor in the lock core The conductive contact of control circuit connection, it is conductive that the key lever of the key is provided with another group be connected with the signal sending circuit Contact, the conductive contact on conductive contact and key lever in lock core correspond, and forming signal after key insertion lock core sends electricity Loop between road and circuit for controlling motor.
CN201710254121.2A 2017-04-18 2017-04-18 Lock core disengaging type device Expired - Fee Related CN107816252B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710254121.2A CN107816252B (en) 2017-04-18 2017-04-18 Lock core disengaging type device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710254121.2A CN107816252B (en) 2017-04-18 2017-04-18 Lock core disengaging type device

Publications (2)

Publication Number Publication Date
CN107816252A true CN107816252A (en) 2018-03-20
CN107816252B CN107816252B (en) 2019-11-01

Family

ID=61601409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710254121.2A Expired - Fee Related CN107816252B (en) 2017-04-18 2017-04-18 Lock core disengaging type device

Country Status (1)

Country Link
CN (1) CN107816252B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472618A (en) * 2020-04-26 2020-07-31 当涂县科辉商贸有限公司 Safe separation and reunion formula device for lock core

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2846641Y (en) * 2005-12-23 2006-12-13 陈文钊 Lock core with electric control device
CN201679310U (en) * 2009-12-22 2010-12-22 王京沪 Lock core with electric control clutch
CN201883798U (en) * 2010-12-07 2011-06-29 中山市顶固金属制品有限公司 Antitheft device adopting mechanical-electrical integration
CN203239064U (en) * 2013-05-23 2013-10-16 浙江美利保锁业有限公司 Double-clutch anti-theft lock cylinder with knob
US20130305792A1 (en) * 2012-05-15 2013-11-21 Wfe Technology Corp. Actuating motor set of electronic
CN104141419A (en) * 2013-05-06 2014-11-12 模帝乐技术有限公司 Electromechanical cylinder lock with key override
CN205713533U (en) * 2016-06-27 2016-11-23 张磊 A kind of idle type external source lock core
CN106285205A (en) * 2016-05-30 2017-01-04 南京巨量数据技术有限公司 One can encryption lock cored structure and application thereof
CN206888695U (en) * 2017-04-18 2018-01-16 上海英特罗机械电气制造股份有限公司 Lock core disengaging type device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2846641Y (en) * 2005-12-23 2006-12-13 陈文钊 Lock core with electric control device
CN201679310U (en) * 2009-12-22 2010-12-22 王京沪 Lock core with electric control clutch
CN201883798U (en) * 2010-12-07 2011-06-29 中山市顶固金属制品有限公司 Antitheft device adopting mechanical-electrical integration
US20130305792A1 (en) * 2012-05-15 2013-11-21 Wfe Technology Corp. Actuating motor set of electronic
CN104141419A (en) * 2013-05-06 2014-11-12 模帝乐技术有限公司 Electromechanical cylinder lock with key override
CN203239064U (en) * 2013-05-23 2013-10-16 浙江美利保锁业有限公司 Double-clutch anti-theft lock cylinder with knob
CN106285205A (en) * 2016-05-30 2017-01-04 南京巨量数据技术有限公司 One can encryption lock cored structure and application thereof
CN205713533U (en) * 2016-06-27 2016-11-23 张磊 A kind of idle type external source lock core
CN206888695U (en) * 2017-04-18 2018-01-16 上海英特罗机械电气制造股份有限公司 Lock core disengaging type device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111472618A (en) * 2020-04-26 2020-07-31 当涂县科辉商贸有限公司 Safe separation and reunion formula device for lock core
CN111472618B (en) * 2020-04-26 2021-09-28 当涂县科辉商贸有限公司 Safe separation and reunion formula device for lock core

Also Published As

Publication number Publication date
CN107816252B (en) 2019-11-01

Similar Documents

Publication Publication Date Title
CN206769607U (en) A kind of lock body structure
CN207363531U (en) Intelligent safety door
CN107816252A (en) Lock core disengaging type device
CN206802127U (en) Can self-locking engaging and disengaging gear
CN206888695U (en) Lock core disengaging type device
CN2931703Y (en) Strength-borrowing autorotation plunger theftproof lock
CN104533186B (en) Steel wire rope padlock
CN200985678Y (en) Electricity-controlled lock
CN207211984U (en) It is a kind of semi-automatic from latch body
CN205713495U (en) A kind of lock core structure
CN206785120U (en) Handle and door and window with locking functions
CN206707434U (en) A kind of lock core and lockset
CN106401288B (en) Anti- opening mechanism in a kind of door lock of high security
CN205046958U (en) Theftproof handle is forced to lock
CN107053061A (en) Electric wrench determines torque force device
CN103306541B (en) Can ensure that unblank key close door with safety door
CN209603614U (en) A kind of electronic lock
CN203684826U (en) Electronic lock
CN208040058U (en) A kind of single tongue lock of intelligence
CN108963523A (en) A kind of electricity optimization system
CN206874074U (en) Clutch type safe theftproof lock
CN204181676U (en) Anastomat
CN201129073Y (en) Lock
CN206242095U (en) A kind of fast open foldable knife of the new power-assisted with safeties
CN220645560U (en) Safety interlocking system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20191101

Termination date: 20210418

CF01 Termination of patent right due to non-payment of annual fee