CN104499843A - Mechanical anti-theft locking lock - Google Patents
Mechanical anti-theft locking lock Download PDFInfo
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- CN104499843A CN104499843A CN201410671905.1A CN201410671905A CN104499843A CN 104499843 A CN104499843 A CN 104499843A CN 201410671905 A CN201410671905 A CN 201410671905A CN 104499843 A CN104499843 A CN 104499843A
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Abstract
The invention discloses a mechanical anti-theft locking lock. A rear lock cylinder and a connector are disconnected with a front lock cylinder completely, the front surface of the rear lock cylinder is provided with a connecting hole, and the rear surface is provided with a connecting tongue penetrating hole; the front lock cylinder is locked through a rotary locking device. The lock integrates the functions of mechanical mutual locking, hiding and hidden connection of the front and rear lock cylinders, and a theft is prevented from unlocking the rotary locking device and rotating the rear lock cylinder; only the front lock cylinder can be rotated even though the rotary locking device is destroyed in a brutal manner, the rear lock cylinder cannot rotate, and the thorough and complete anti-theft effect is achieved.
Description
Technical field
The present invention relates to a kind of mechanical locking theftproof lock in theftproof lock field.
Background technology
The theftproof lock of present use has a variety of, but is all rotate after the key adopted backs down hoodle to drive dead bolt to open theftproof lock substantially, and the theftproof lock not having interlocking and self-locking to combine, causes robber or the king that unblanks is easy to just open theftproof lock.The theftproof lock that robber and the king that unblanks do not open also there is no at present.
Summary of the invention
The object that the present invention relates to be in order to a kind of robber is provided and unblanks that king do not open the asynchronous interlocking of collection, self-locking and mechanical interlocked that be combined as a whole, high security, without the manufacture of the theftproof lock of hoodle and method thereof.
For achieving the above object, there are the latch system of cylinder lock, rotary catch, synchronized links system in mechanical locking theftproof lock of the present invention, mainly comprise: lock body, front lock core, rear lock core, connector, return spring, hold hole, hold spring, hold post, hold head, connecting hole, connection tongue, spring bearing bore, specially bitting hole, specially bitting, swivelling chute, rotation locked groove, push away handle, rotating disk, turning handle, corner, torsional spring, steady pin;
Be provided with front lock core and rear lock core in described lock body, rear lock core is movably arranged on the rearward end of front lock core, disconnects completely with front lock core; Hold hole, swivelling chute, specially bitting hole and stealthy hole in described front lock core, in stealthy hole, connector is installed; The rear end of described rear lock core is fixed with connection tongue, and connect tongue and be connected with link gear through after the via hole at lock body rear portion, link gear is connected with dead bolt; Described holding on Kong Qian lock core and lock body is mutually through.
There are lock core hole and via hole in center in described lock body, and via hole is used to allow and connects hole that tongue passes, rearward end at lock body, lock core hole circular hole, before via hole; Be provided with lock core in lock core hole, lock core comprises front lock core and rear lock core, and front lock core is arranged on before rear lock core; There is rotation locked groove in the circular hole part of lock core hole, lock body holds hole; The described hole that holds is bearing bore in lock body or through hole, slides holding in hole for installing to hold spring, hold post and hold head and allow hold head and hold post, corresponding with the position holding hole on front lock core, and communicates; Described rotation locked groove is depression, along the cannelure on lock core hole direction, corresponding with the position of the swivelling chute on front lock core on lock core hole, for allowing corner lock core rotation before movable and locking inside.
Have special bitting hole, stealthy hole, swivelling chute in described front lock core and hold hole, described special bitting hole and stealthy hole all the centre that front lock core rotates or close to rotate special bitting hole, centre before stealthy hole; Be provided with connector in described stealthy hole, there is stealthy hole the front end of connector, is provided with return spring in stealthy hole; Described swivelling chute wear out on the lock core of the stealthy bore portion of front lock core before the outer round surface of lock core and stealthy hole, communicate with rotation locked groove and stealthy hole, and corresponding with the rotation locked groove on lock core hole, for installing rotary locking and allowing the parts of rotary locking operate; Described holds the surface of revolution and special bitting hole of wearing out front lock core in Kong Qian lock core, communicates with special bitting hole and lock core hole, slides holding in hole for installing to hold head and allow hold head and hold post.
A rotary catch is had at least in a lock, described rotary catch comprises swivelling chute, rotate locked groove, push away handle, rotating disk, turning handle, corner, torsional spring, steady pin, described push away handle at swivelling chute internal fixtion on connector, described rotating disk is fixed in swivelling chute by steady pin, rotating disk is fixed with corner and turning handle, part or all of corner is in rotation locked groove, turning handle points to the direction in stealthy hole in swivelling chute, the pivotal angle of handle restriction turning handle is pushed away before turning handle, torsional spring top is had to press below, the top, one end of torsional spring is pressed on turning handle, other end top is pressed on the wall of swivelling chute.Insert when promoting connector in stealthy hole in the front end of pushing tow key, connector drives and pushes away handle and promote turning handle, and turning handle rotates at drive rotating disk and corner, and corner rotates and enters the locking of releasing to front lock core swivelling chute in; When the front end of pushing tow key is not inserted in stealthy hole, corner is lock core before rotation locked groove internal lock is dead.
The described handle that pushes away is strip shape body, is fixed on connector, is arranged in swivelling chute, rotates around steady pin for pushing away handle;
Described rotating disk and turning handle, corner are an entirety, or combining of separating;
Described rotating disk is the disc or blocks that can rotate around steady pin, and the centre of rotating disk is porose, and steady pin is through the hole in the middle of rotating disk; Described rotating disk is used for connection and pushes away handle and corner;
Described turning handle is the strip shape body be fixed on rotating disk, for driving dial rotation;
Described corner is the blocks be fixed on rotating disk, is partly or entirely arranged on and rotates in locked groove, can not rotate for lock core before locking in lock core hole;
Described torsional spring is stage clip or torsion spring;
Described steady pin is pin or bolt, is fixed in the fixing hole rotated in locked groove, for fixing rotating disk.
The center of the rear end of described rear lock core is fixed with and connects tongue through lock body via hole below, and there is the connecting hole of depression the front end of the center of rotation of rear lock core; Described connecting hole is polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove; Be with or without spring bearing bore in the bottom of connecting hole, when the bottom of described connecting hole does not have a spring bearing bore, spring bearing bore is located at the rearward end of connector, is provided with return spring in spring bearing bore, and one end of return spring withstands on the bottom of connecting hole; When spring bearing bore arranged at the bottom of described connecting hole, the core that spring bearing bore and connecting hole rotate at rear lock core or the part close to center of rotation, spring bearing bore is later through connecting hole above, be provided with return spring in spring bearing bore, one end of return spring withstands on the rearward end of connector.
When having spring bearing bore in described rear lock core, spring bearing bore is at the connecting hole passed back through above of the bottom of connecting hole; When not having spring bearing bore in described rear lock core, spring bearing bore is in the rearward end of connector; Described spring bearing bore also can simultaneously in the rearward end of connector and the bottom of connecting hole; Described spring bearing bore is bearing bore or blind hole, for installing return spring; Described return spring is spring;
Described connector is one section of connector, the front end of connector coordinates with the front end of pushing tow key can slide in stealthy hole He in connecting hole, when connector slides in stealthy hole, its rear end can be inserted in the connecting hole in rear lock core, for connecting front lock core and rear lock core.
Described special bitting comprises pushing tow key and the shank of the key, and pushing tow key is fixed on the shank of the key; Described pushing tow key promotes key, the part that pushing tow key inserts the key in special bitting hole has at least on a lateral and have pitch face, and pitch face is used for cant and holds head; Described pushing tow key length is longer than the length in special bitting hole, and the part that the length of pushing tow key is longer than special bitting hole is used for promoting connector insertion connecting hole.
In order to increase safety and the disguise of theftproof lock, rear lock core is movably arranged on the rearward end of front lock core, disconnects completely and hiddenly realizes being connected stealth, do not have the insertion of pushing tow key can not connect and transmit power to rear lock core with front lock core; The locked front lock core of corner of rotary catch realizes interlocking stealth, and not having pushing tow key to insert promotion connector in stealthy hole can not open rotary catch.
In order to increase the interlocking capability of theftproof lock, disguise and anti-theft effect, adopt rotating disk and corner front lock core and lock body locked realize rotating interlock; Before adopting, lock core and rear lock core disconnect being hidden in stealthy hole with connector completely and realize being connected stealth.
When unblanking with special bitting, special bitting hole is inserted with the pushing tow key of special bitting, in the process inserted, pushing tow pitch face on the key oblique compression in special bitting hole hold head and allow hold head after move, promotion moves after holding post, makes to hold post and the junction the holding head intersection at the lock core hole of front lock core and lock body; Pushing tow key is through behind special bitting hole, and the front end of pushing tow key is inserted in stealthy hole and promoted, in connector insertion connecting hole, to complete the connection with front lock core and rear lock core; While connector movement, connector moves after driving and pushing away handle and promotes turning handle rotation, and drive rotating disk and corner to rotate, corner rotates and shifts out rotation locked groove, removes the locking to front lock core; Now, rotate special bitting, rear lock core rotates with front lock core and is with the tongue that is dynamically connected to rotate, and connection lingual ribbon moves link gear and opens dead bolt and unblank.
When pushing tow key exits special bitting hole, corner under the powered of torsional spring around steady pin rotate and enter rotate locked groove internal lock dead before lock core, complete the locking to front lock core; Connector, under the promotion of return spring, exits connecting hole and enters in stealthy hole completely, makes front lock core disconnect completely with rear lock core and can not be connected.
When robber or the king that unblanks unblank with technical tool, stretch in special bitting hole with steel wire and be pressed into hold hole holding head, but hiding rotary catch can not be opened; Even if robber or the king that unblanks have damaged the front lock core of oblique locking device forced rotating, but rear lock core can not be rotated because the connector in stealthy hole is not connected with rear lock core.
Robber or unblank king need not specially bitting is unblanked time, enter after not having pushing tow key to insert special bitting hole in stealthy hole promote connector enter in connecting hole, front lock core and rear lock core cannot be made simultaneously to rotate, can not theftproof lock be opened; Not having pushing tow key to insert promotion connector in stealthy hole drives dial rotation to open rotary catch, and front lock core cannot be made to rotate; Add the difficulty of pirate of the open lock, thus play the effect of interlocking, self-locking, stealth and multiple safety.
After namely robber or the king that unblanks use flat instrument to adopt barbarous way to damage rotating disk and corner, the front lock core of forced rotating, rear lock core be connected with front lock core and do not rotate with front lock core because of stealthy, plays anti-theft function.
In order to can be real antitheft, before adopting, lock core disconnects completely with rear lock core and realizes being connected stealth; Adopt rotating disk and corner to be hidden in lock core and lock body to realize interlocking stealth.
In order to expand the scope of application, the place that described mechanical locking theftproof lock is applicable to the antitheft door of all kinds of needs, cabinet and so on is installed and used, and comprises but is not only limited to installing and using of car door, security door, safety cabinet, strongbox, built-in lock door, built-in lock cabinet and common door and common cabinet.
The manufacture of described mechanical locking theftproof lock and method thereof, is characterized in that:
During fabrication, on lock body, manufacture has via hole, lock core hole, holds hole and rotate locked groove lock body, and the centre that lock core hole is manufactured on rear locking is used for installing lock core, has the via hole for allowing connection tongue pass in the manufacture below of lock core hole; The described hole that holds is manufactured on lock body, communicates with the hole that holds on front lock core; Described rotation locked groove is manufactured on lock core hole, create depression, along the cannelure on lock core hole direction, corresponding with the position of the swivelling chute on front lock core, for allowing corner lock core rotation before movable and locking inside.
Lock core during fabrication, carries out division system lock core and causes front lock core and rear lock core; Described front lock core during fabrication, front lock core manufactures and holds hole, swivelling chute, stealthy hole and special bitting hole; The center of rotation position that described special bitting hole and stealthy hole are manufactured on front lock core is connected, specially join stealthy hole above, stealthy hole later; The shape in described special bitting hole and the shape of pushing tow key same or similar, the front portion of stealthy hole and connector is same or similar; The described hole that holds is manufactured on front lock core, communicates with the hole that holds on lock body; The lock core that described swivelling chute is manufactured on the stealthy bore portion of front lock core wears out the outer round surface of front lock core and stealthy hole, communicate with rotation locked groove and stealthy hole, and corresponding with the rotation locked groove on lock core hole, for installing rotary locking and allowing the parts of rotary locking operate.
Steady pin creates pin or bolt, is fixed in the fixing hole rotated in locked groove, for fixing rotating disk.
Torsional spring creates stage clip or torsion spring.
Pushing away handle and create strip shape body, be fixed on connector, be arranged in swivelling chute, rotating around steady pin for pushing away handle.
Rotating disk and turning handle, corner manufacture as a whole, or combine after manufacturing respectively; Described rotating disk creates the disc or blocks that can rotate around steady pin, and manufacture porose in the middle of rotating disk, steady pin is through the hole in the middle of rotating disk; Described rotating disk is used for connection and pushes away handle and corner; Described turning handle creates the strip shape body be fixed on rotating disk, for driving dial rotation; Described corner creates the blocks be fixed on rotating disk, is partly or entirely arranged on and rotates in locked groove, can not rotate for lock core before locking in lock core hole.
Rear lock core during fabrication, rear lock core manufactures and has connecting hole; Described connecting hole creates polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove, be manufactured on the center of rotation position of rear lock core, coordinate with the aft section of connector, parallel with lock core hole, can be through with the stealthy hole on front lock core.
In order to enable special bitting unblank, during fabrication, special bitting creates pushing tow key and the shank of the key two parts, is manufactured on the shank of the key by pushing tow key in described special bitting; The body keyway portion of described pushing tow key in the special bitting hole of insertion have at least manufacture on a lateral to have pitch face; The length that described pushing tow key manufactures is longer than the length in special bitting hole, and the part that the length of pushing tow key is longer than special bitting hole is used for promoting connector insertion connecting hole; The shape in described special bitting hole creates with the shape of pushing tow key same or similar, and described special bitting hole creates the hole of single groove or multiple-grooved or multidirectional groove; Described multidirectional groove comprises V-shaped groove, U-lag, two-way chute, three-dimensional groove, cross recess, five to groove, six to groove, seven to groove, eight to groove, plum blossom groove;
Described connector during fabrication, connector is created the cylinder that the shape of anterior, rear portion consistent with the shape in stealthy hole and connecting hole is consistent, the front end of connector is created the shape that can coordinate with the front end of pushing tow key, allow pushing tow key can promote connector slide in stealthy hole He in connecting hole, when connector slides in stealthy hole, its rear end can be inserted in connecting hole, for connecting front lock core and rear lock core.
Spring bearing bore during fabrication, is manufactured on the bottom of connecting hole and passes connecting hole, or spring bearing bore being manufactured on the rearward end of connector, or spring bearing bore is manufactured on the rearward end of connector and the bottom of connecting hole simultaneously by described spring bearing bore; Spring bearing bore is created blind hole or bearing bore, for installing return spring; Described return spring creates stage clip.
Be provided with front lock core and rear lock core in lock body, rear lock core is movably arranged on the rearward end of front lock core, disconnects completely with front lock core; Manufacture in described front lock core and hold hole, swivelling chute, specially bitting hole and stealthy hole, in stealthy hole, connector is installed; Have connecting hole in described rear lock core, the rear end of rear lock core is fixed with connection tongue, and connect tongue and be connected with link gear through after the via hole at lock body rear portion, link gear is connected with dead bolt; Described hold in hole to be provided with hold spring, hold post and hold head; In described swivelling chute, rotary catch is installed.
For the ease of manufacturing and assembling, the manufacture hop count of lock core before changing, the easily manufactured needs of described lock body according to internal construction and the needs of manufacturing process, the segmentation manufacture again near the end or end in stealthy hole of front lock core, or in the segmentation manufacture again of the position of squeezing groove, or in the segmentation manufacture again of the position of swivelling chute, front lock core is created entirety or multistage, each section of lock core that segmentation manufactures can synchronous rotary or can separately asynchronous rotation;
In order to manufacture the needs with assembly technology, lock body, during fabrication according to technological requirement and needs, creates entirety or multistage lock body.
Mechanical locking theftproof lock of the present invention rational in infrastructure, to manufacture and easy to use, interlocking, stealthy and good anti-theft effect; Corner and rotating disk are hidden in locked front lock core in lock core and lock body, front lock core and rear lock core disconnect completely and are hidden in stealthy hole with connector, make robber and Wang Wufa rotation rear lock core of unblanking, achieve integrate asynchronous, interlocking, stealth, self-locking, synchronized links the theftproof lock of several functions, safety parameters is high; Namely be also merely able to rotate front lock core after using barbarous means to damage rotary catch, can not rotate be hidden in front lock core below rear lock core, front lock core is rotated and rear lock core non rotating, serves real anti-theft function.
Accompanying drawing explanation
Fig. 1 is the primary structure schematic diagram of mechanical locking theftproof lock of the present invention;
Fig. 2 is the structural representation in the cross section of front lock core;
Fig. 3 is the surface structure schematic diagram of the right view of Fig. 1;
Fig. 4 is the surface structure schematic diagram of the right view of rear lock core;
Fig. 5 is the surface structure schematic diagram of the left view of rear lock core;
Fig. 6 is the surface structure schematic diagram of special bitting.
Mechanical locking theftproof lock shown in figure be two to groove special bitting hole and two to pushing tow key;
Shown in figure: lock body 1, front lock core 2, rotate locked groove 3, swivelling chute 4, push away handle 5, turning handle 6, corner 7, torsional spring 8, rotating disk 9, steady pin 10, rear lock core 11, connecting hole 12, connect tongue 13, spring bearing bore 14, return spring 15, connector 16, specially bitting hole 17, the shank of the key 18, pushing tow key 19, pitch face 20, hold spring 21, hold post 22, hold 23, hold hole 24.
Detailed description of the invention
Mechanical locking theftproof lock of the present invention mainly comprises lock body 1, front lock core 2, rear lock core 11, connector 16, return spring 15, hold hole 24, hold spring 21, hold post 22, hold 23, connecting hole 12, connect tongue 13, spring bearing bore 14, specially bitting hole 17, specially bitting, swivelling chute 4, rotate locked groove 3, push away handle 5, rotating disk 9, turning handle 6, corner 7, torsional spring 8, steady pin 10;
Be provided with front lock core 2 and rear lock core 11 in described lock body 1, rear lock core 11 is movably arranged on the rearward end of front lock core 2, disconnects completely with front lock core 2; Hold hole 24, swivelling chute 4, specially bitting hole 17 and stealthy hole in described front lock core 2, connector 16 is installed in stealthy hole; The rear end of described rear lock core 11 is fixed with and connects tongue 13, and connect tongue 13 and be connected with link gear through after the via hole at lock body 1 rear portion, link gear is connected with dead bolt; It is described that to hold hole 24 mutually through on front lock core 2 and lock body 1.
There are lock core hole and via hole in center in described lock body 1, and via hole is used to allow and connects hole that tongue 13 passes, rearward end at lock body 1, lock core hole circular hole, before via hole; Be provided with lock core in lock core hole, lock core comprises front lock core 2 and rear lock core 11, and front lock core 2 is arranged on before rear lock core 11; Have in the circular hole part of lock core hole and rotate locked groove 3, lock body 1 holds hole 24; The described hole 24 that holds is bearing bore in lock body 1 or through hole, holds spring 21, holds post 22 and hold 23 and allow to hold 23 and hold post 22 holding slip hole 24 in for installing, corresponding with the position holding hole 24 on front lock core 2, and communicates; Described rotation locked groove 3 is depressions, along the cannelure on lock core hole direction, corresponding with the position of the swivelling chute 4 on front lock core 2 on lock core hole, for allow corner 7 inside before movable and locking lock core 2 rotate.
Have special bitting hole 17, stealthy hole, swivelling chute 4 in described front lock core 2 and hold hole 24, described special bitting hole 17 and stealthy hole all the centre that front lock core 2 rotates or close to the special bitting hole 17, centre rotated before stealthy hole; Be provided with connector 16 in described stealthy hole, there is stealthy hole the front end of connector 16, is provided with return spring 15 in stealthy hole; Described swivelling chute 4 wear out on the lock core of the stealthy bore portion of front lock core 2 before the outer round surface of lock core 2 and stealthy hole, communicate with rotation locked groove 3 and stealthy hole, and corresponding with the rotation locked groove 3 on lock core hole, for installing rotary locking and allowing the parts of rotary locking operate; Described hold hole 24 wear out in front lock core 2 before the surface of revolution of lock core 2 and special bitting hole 17, communicating with special bitting hole 17 and lock core hole, holding 23 and hold post 22 holding slip hole 24 in for installing to hold 23 and allow.
A rotary catch is had at least in a lock, described rotary catch comprises swivelling chute 4, rotate locked groove 3, push away handle 5, rotating disk 9, turning handle 6, corner 7, torsional spring 8, steady pin 10, described push away handle 5 at swivelling chute 4 internal fixtion on connector 16, described rotating disk 9 is fixed in swivelling chute 4 by steady pin 10, rotating disk 9 is fixed with corner 7 and turning handle 6, part or all of corner 7 is in rotation locked groove 3, turning handle 6 points to the direction in stealthy hole in swivelling chute 4, push away handle 5 before turning handle 6 and limit the pivotal angle of turning handle 6, torsional spring 8 is had to push up pressure below, the top, one end of torsional spring 8 is pressed on turning handle 6, other end top is pressed on the wall of swivelling chute 4.Insert when promoting connector 16 in stealthy hole in the front end of pushing tow key 19, connector 16 drives and pushes away handle 5 and promote turning handle 6, and turning handle 6 rotates at drive rotating disk 9 and corner 7, and corner 7 rotates and enters in swivelling chute 4 locking removed front lock core 2; When the front end of pushing tow key 19 is not inserted in stealthy hole, corner 7 is locked front lock core 2 in rotation locked groove 3.
The described handle 5 that pushes away is strip shape bodies, is fixed on connector 16, is arranged in swivelling chute 4, rotates around steady pin 10 for pushing away handle 5;
Described rotating disk 9 and turning handle 6, corner 7 are an entirety, or combining of separating;
Described rotating disk 9 is the disc or blocks that can rotate around steady pin 10, and the centre of rotating disk 9 is porose, and steady pin 10 is through the hole in the middle of rotating disk 9; Described rotating disk 9 pushes away handle 5 and corner 7 for connecting;
Described turning handle 6 is fixed on the strip shape body on rotating disk 9, rotates for driving rotating disk 9;
Described corner 7 is fixed on the blocks on rotating disk 9, is partly or entirely arranged on and rotates in locked groove 3, can not rotate for lock core before locking 2 in lock core hole;
Described torsional spring 8 is stage clip or torsion spring;
Described steady pin 10 is pin or bolt, is fixed in the fixing hole rotated in locked groove 3, for fixing rotating disk 9.
The center of the rear end of described rear lock core 11 is fixed with and connects tongue 13 through lock body 1 via hole below, and there is the connecting hole 12 of depression the front end of the center of rotation of rear lock core 11; Described connecting hole 12 is polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove; Spring bearing bore 14 is with or without in the bottom of connecting hole 12, when the bottom of described connecting hole 12 does not have a spring bearing bore 14, spring bearing bore 14 is located at the rearward end of connector 16, is provided with return spring 15 in spring bearing bore 14, and one end of return spring 15 withstands on the bottom of connecting hole 12; When spring bearing bore 14 arranged at the bottom of described connecting hole 12, the core that spring bearing bore 14 and connecting hole 12 rotate at rear lock core 11 or the part close to center of rotation, spring bearing bore 14 is later through connecting hole 12 above, be provided with return spring 15 in spring bearing bore 14, one end of return spring 15 withstands on the rearward end of connector 16.
When having spring bearing bore 14 in described rear lock core 11, spring bearing bore 14 is at the connecting hole 12 passed back through above of the bottom of connecting hole 12; When not having spring bearing bore 14 in described rear lock core 11, spring bearing bore 14 is in the rearward end of connector 16; Described spring bearing bore 14 also can simultaneously in the rearward end of connector 16 and the bottom of connecting hole 12; Described spring bearing bore 14 is bearing bore or blind hole, for installing return spring 15; Described return spring 15 is springs;
Described connector 16 is one section of connector 16, the front end of connector 16 coordinates with the front end of pushing tow key 19 can slide in stealthy hole He in connecting hole 12, when connector 16 slides in stealthy hole, its rear end can be inserted in the connecting hole 12 in rear lock core 11, for connecting front lock core 2 and rear lock core 11.
Described special bitting comprises pushing tow key 19 and the shank of the key 18, and pushing tow key 19 is fixed on the shank of the key 18; Described pushing tow key 19 promotes key, the part that pushing tow key 19 inserts the key in special bitting hole 17 has at least on a lateral and have pitch face 20, and pitch face 20 holds 23 for cant; Described pushing tow key 19 length is longer than the length in special bitting hole 17, and the length of pushing tow key 19 is used for promoting connector 16 than the part of special bitting hole 17 length and inserts connecting hole 12.
In order to increase safety and the disguise of theftproof lock, rear lock core 11 is movably arranged on the rearward end of front lock core 2, disconnects completely and hiddenly realizes being connected stealth, do not have the insertion of pushing tow key 19 can not connect and transmit power to rear lock core 11 with front lock core 2; The locked front lock core 2 of corner 7 of rotary catch realizes interlocking stealth, and not having pushing tow key 19 to insert promotion connector 16 in stealthy hole can not open rotary catch.
In order to increase the interlocking capability of theftproof lock, disguise and anti-theft effect, adopt rotating disk 9 and corner 7 front lock core 2 and lock body 1 locked realize rotating interlock; Before adopting, lock core 2 disconnects completely with rear lock core 11 and connector 16 is hidden in stealthy hole and realizes being connected stealth.
In order to can be real antitheft, adopt before lock core 2 disconnect realizing being connected stealth completely with rear lock core 11; Adopt rotating disk 9 and corner 7 to be hidden in lock core and lock body 1 to realize interlocking stealth.
When unblanking with special bitting, special bitting hole 17 is inserted with the pushing tow key 19 of special bitting, in the process inserted, pitch face 20 on pushing tow key 19 oblique compression in special bitting hole 17 hold 23 and allow hold 23 after move, promotion moves after holding post 22, makes to hold post 22 and holds the junction of 23 at the intersection of front lock core 2 with the lock core hole of lock body 1; Pushing tow key 19 is through behind special bitting hole 17, and the front end of pushing tow key 19 is inserted promotion connector 16 in stealthy hole and inserted in connecting hole 12, completes the connection with front lock core 2 and rear lock core 11; While connector 16 movement, connector 16 moves after driving and pushing away handle 5 and promotes turning handle 6 and rotate, and drives rotating disk 9 and corner 7 to rotate, and corner 7 rotates and shifts out and rotate locked groove 3, removes the locking to front lock core 2; Now, rotate special bitting, rear lock core 11 rotates with front lock core 2 and is with the tongue 13 that is dynamically connected to rotate, and connects tongue 13 and drives link gear open dead bolt and unblank.
When pushing tow key 19 exits special bitting hole 17, corner 7 rotates around steady pin 10 and enters locked front lock core 2 in rotation locked groove 3 under the powered of torsional spring 8, completes the locking to front lock core 2; Connector 16, under the promotion of return spring 15, exits connecting hole 12 and enters in stealthy hole completely, makes front lock core 2 disconnect completely with rear lock core 11 and can not be connected.
When robber or the king that unblanks unblank with technical tool, stretch in special bitting hole 17 with steel wire and be pressed into hold hole 24 holding 23, but hiding rotary catch can not be opened; Even if robber or the king that unblanks have damaged the front lock core 2 of oblique locking device forced rotating, but rear lock core 11 can not be rotated because the connector 16 in stealthy hole is not connected with rear lock core 11.
Robber or unblank king need not specially bitting is unblanked time, enter after not having pushing tow key 19 to insert special bitting hole 17 in stealthy hole promote connector 16 enter in connecting hole 12, front lock core 2 and rear lock core 11 cannot be made simultaneously to rotate, can not theftproof lock be opened; Not having pushing tow key 19 to insert promotion connector 16 in stealthy hole drives rotating disk 9 rotation to open rotary catch, and front lock core 2 cannot be made to rotate; Add the difficulty of pirate of the open lock, thus play the effect of interlocking, self-locking, stealth and multiple safety;
After namely robber or the king that unblanks use flat instrument to adopt barbarous way to damage rotating disk 9 and corner 7, the front lock core 2 of forced rotating, rear lock core 11 is not connected with front lock core 2 because of stealthy and does not rotate with front lock core 2, plays anti-theft function.
Claims (6)
1. a mechanical locking theftproof lock, it is characterized in that: the latch system having cylinder lock in described mechanical locking theftproof lock, rotary catch, synchronized links system, mainly comprise: lock body (1), front lock core (2), rear lock core (11), connector (16), return spring (15), hold hole (24), hold spring (21), hold post (22), hold head (23), connecting hole (12), connect tongue (13), spring bearing bore (14), special bitting hole (17), special bitting, swivelling chute (4), rotate locked groove (3), push away handle (5), rotating disk (9), turning handle (6), corner (7), torsional spring (8), steady pin (10),
Be provided with front lock core (2) and rear lock core (11) in described lock body (1), rear lock core (11) is movably arranged on the rearward end of front lock core (2), disconnects completely with front lock core (2); Hold hole (24), swivelling chute (4), specially bitting hole (17) and stealthy hole in described front lock core (2), connector (16) is installed in stealthy hole; The rear end of described rear lock core (11) is fixed with and connects tongue (13), and be connected with link gear after connecting the via hole of tongue (13) through lock body (1) rear portion, link gear is connected with dead bolt; It is described that to hold hole (24) mutually through on front lock core (2) and lock body (1);
There are lock core hole and via hole in center in described lock body (1), and via hole is used to allow and connects hole that tongue (13) passes, rearward end in lock body (1), lock core hole circular hole, before via hole; Be provided with lock core in lock core hole, lock core comprises front lock core (2) and rear lock core (11), and front lock core (2) is arranged on before rear lock core (11); There is rotation locked groove (3) in the circular hole part of lock core hole, lock body (1) holds hole (24); The described hole (24) that holds is bearing bore in lock body (1) or through hole, hold head (23) for installing to hold spring (21), hold post (22) and hold head (23) and allow and hold post (22) holding in hole (24) slip, corresponding with the position holding hole (24) on front lock core (2), and communicate; Described rotation locked groove (3) caves in, along the cannelure on lock core hole direction, corresponding with the position of the swivelling chute (4) on front lock core (2) on lock core hole, for allowing corner (7) lock core (2) rotation before movable and locking inside;
Have special bitting hole (17), stealthy hole, swivelling chute (4) in described front lock core (2) and hold hole (24), described special bitting hole (17) and stealthy hole all the centre that front lock core (2) rotates or close to rotate special bitting hole, centre (17) before stealthy hole; Be provided with connector (16) in described stealthy hole, there is stealthy hole the front end of connector (16), is provided with return spring (15) in stealthy hole; Described swivelling chute (4) wears out the outer round surface of front lock core (2) and stealthy hole on the lock core of the stealthy bore portion of front lock core (2), communicate with rotation locked groove (3) and stealthy hole, and corresponding with the rotation locked groove (3) on lock core hole, for installing rotary locking and allowing the parts of rotary locking operate; Described holds surface of revolution and the special bitting hole (17) that front lock core (2) is worn out in hole (24) in front lock core (2), communicate with special bitting hole (17) and lock core hole, hold head (23) for installing to hold head (23) and allow and hold post (22) holding in hole (24) slip;
A rotary catch is had at least in a lock, described rotary catch comprises swivelling chute (4), rotate locked groove (3), push away handle (5), rotating disk (9), turning handle (6), corner (7), torsional spring (8), steady pin (10), described push away handle (5) at swivelling chute (4) internal fixtion on connector (16), described rotating disk (9) is fixed in swivelling chute (4) by steady pin (10), rotating disk (9) is fixed with corner (7) and turning handle (6), part or all of corner (7) is in rotation locked groove (3), turning handle (6) points to the direction in stealthy hole in swivelling chute (4), handle (5) restriction turning handle (6) pivotal angle is pushed away before turning handle (6), torsional spring (8) is had to push up pressure below, the top, one end of torsional spring (8) is pressed on turning handle (6), other end top is pressed on the wall of swivelling chute (4), when inserting promotion connector (16) in stealthy hole in the front end of pushing tow key (19), connector (16) drives and pushes away handle (5) promotion turning handle (6), turning handle (6) rotates in drive rotating disk (9) and corner (7), and corner (7) rotates and enters in swivelling chute (4) locking removed front lock core (2), when the front end of pushing tow key (19) is not inserted in stealthy hole, corner (7) is locked front lock core (2) in rotation locked groove (3),
It is described that to push away handle (5) be strip shape body, be fixed on connector (16) upper, be arranged in swivelling chute (4), rotate around steady pin (10) for pushing away handle (5);
Described rotating disk (9) and turning handle (6), corner (7) are an entirety, or combining of separating;
Described rotating disk (9) is the disc or blocks that can rotate around steady pin (10), and the centre of rotating disk (9) is porose, and steady pin (10) is through the hole in the middle of rotating disk (9); Described rotating disk (9) pushes away handle (5) and corner (7) for connecting;
Described turning handle (6) is fixed on the strip shape body on rotating disk (9), rotates for driving rotating disk (9);
Described corner (7) is fixed on the blocks on rotating disk (9), is partly or entirely arranged on and rotates in locked groove (3), can not rotate for lock core before locking (2) in lock core hole;
Described torsional spring (8) is stage clip or torsion spring;
Described steady pin (10) is pin or bolt, is fixed in the fixing hole rotated in locked groove (3), for fixing rotating disk (9);
The center of the rear end of described rear lock core (11) is fixed with and connects tongue (13) through the via hole after lock body (1), and there is the connecting hole (12) of depression the front end of the center of rotation of rear lock core (11); Described connecting hole (12) is polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove; Spring bearing bore (14) is with or without in the bottom of connecting hole (12), when the bottom of described connecting hole (12) does not have spring bearing bore (14), spring bearing bore (14) is located at the rearward end of connector (16), be provided with return spring (15) in spring bearing bore (14), one end of return spring (15) withstands on the bottom of connecting hole (12); When spring bearing bore (14) arranged at the bottom of described connecting hole (12), the core that spring bearing bore (14) and connecting hole (12) rotate at rear lock core (11) or the part close to center of rotation, spring bearing bore (14) is later through connecting hole (12) above, be provided with return spring (15) in spring bearing bore (14), one end of return spring (15) withstands on the rearward end of connector (16);
When having spring bearing bore (14) in described rear lock core (11), spring bearing bore (14) is at the connecting hole (12) passed back through above of the bottom of connecting hole (12); When there is no spring bearing bore (14) in described rear lock core (11), spring bearing bore (14) rearward end in connector (16); Described spring bearing bore (14) also can simultaneously in the rearward end of connector (16) and the bottom of connecting hole (12); Described spring bearing bore (14) is bearing bore or blind hole, for installing return spring (15); Described return spring (15) is spring;
Described connector (16) is one section of connector (16), the front end of connector (16) coordinates with the front end of pushing tow key (19) can slide in stealthy hole He in connecting hole (12), when connector (16) slides in stealthy hole, its rear end can be inserted in the connecting hole (12) in rear lock core (11), for connecting front lock core (2) and rear lock core (11);
Described special bitting comprises pushing tow key (19) and the shank of the key (18), and pushing tow key (19) is fixed on the shank of the key (18); Described pushing tow key (19) promotes key, the part that pushing tow key (19) inserts the key in special bitting hole (17) has at least on a lateral and has pitch face (20), pitch face (20) holds head (23) for cant; Described pushing tow key (19) length is longer than the length of special bitting hole (17), and the part that the length of pushing tow key (19) is longer than special bitting hole (17) is used for promoting connector (16) insertion connecting hole (12);
In order to increase safety and the disguise of theftproof lock, rear lock core (11) is movably arranged on the rearward end of front lock core (2), disconnect completely with front lock core (2) and hiddenly realize being connected stealth, not having the insertion of pushing tow key (19) can not connect and transmit power to rear lock core (11); The locked front lock core (2) of corner (7) of rotary catch realizes interlocking stealth, and not having pushing tow key (19) to insert promotion connector (16) in stealthy hole can not open rotary catch;
In order to increase the interlocking capability of theftproof lock, disguise and anti-theft effect, adopt rotating disk (9) and corner (7) locked to front lock core (2) and lock body (1) realize rotating interlock; Before adopting, lock core (2) disconnects completely with rear lock core (11) and connector (16) is hidden in stealthy hole and realizes being connected stealth;
When unblanking with special bitting, special bitting hole (17) is inserted with the pushing tow key (19) of special bitting, in the process inserted, pitch face (20) on pushing tow key (19) oblique compression in special bitting hole (17) hold head (23) and allow hold head (23) after move, promotion moves after holding post (22), makes hold post (22) and hold the junction of head (23) at the intersection of front lock core (2) with the lock core hole of lock body (1); Pushing tow key (19) is through after special bitting hole (17), the front end of pushing tow key (19) is inserted in stealthy hole and is promoted, in connector (16) insertion connecting hole (12), to complete the connection with front lock core (2) and rear lock core (11); While connector (16) movement, connector (16) moves after driving and pushing away handle (5) and promotes turning handle (6) rotation, rotating disk (9) and corner (7) is driven to rotate, corner (7) rotates and shifts out rotation locked groove (3), removes the locking to front lock core (2); Now, rotate special bitting, rear lock core (11) rotates with front lock core (2) and is with the tongue (13) that is dynamically connected to rotate, and connects tongue (13) and drives link gear open dead bolt and unblank;
When pushing tow key (19) exits special bitting hole (17), corner (7) rotates around steady pin (10) and enters locked front lock core (2) in rotation locked groove (3) under the powered of torsional spring (8), completes the locking to front lock core (2); Connector (16), under the promotion of return spring (15), exits connecting hole (12) and enters in stealthy hole completely, makes front lock core (2) disconnect completely with rear lock core (11) and can not be connected;
When robber or the king that unblanks unblank with technical tool, stretch in special bitting hole (17) with steel wire and be pressed into hold hole (24) holding head (23), but hiding rotary catch can not be opened; Even if robber or the king that unblanks have damaged oblique locking device forced rotating front lock core (2), but rear lock core (11) can not be rotated because the connector (16) in stealthy hole is not connected with rear lock core (11);
Robber or unblank king need not specially bitting is unblanked time, entering promotion connector (16) in stealthy hole after not having pushing tow key (19) to insert special bitting hole (17) enters in connecting hole (12), front lock core (2) and rear lock core (11) cannot be made simultaneously to rotate, can not theftproof lock be opened; Not having pushing tow key (19) to insert promotion connector (16) in stealthy hole drives rotating disk (9) rotation to open rotary catch, and front lock core (2) cannot be made to rotate; Add the difficulty of pirate of the open lock, thus play the effect of interlocking, self-locking, stealth and multiple safety;
After namely robber or the king that unblanks use flat instrument to adopt barbarous way to damage rotating disk (9) and corner (7), forced rotating front lock core (2), rear lock core (11) is not connected and does not rotate with front lock core (2) with front lock core (2) because of stealthy, plays anti-theft function.
2. mechanical locking theftproof lock according to claim 1, is characterized in that: in order to can be real antitheft, adopt before lock core (2) disconnect realizing being connected stealth completely with rear lock core (11); Adopt rotating disk (9) and corner (7) to be hidden in lock core and lock body (1) to realize interlocking stealth.
3. mechanical locking theftproof lock according to claim 1, it is characterized in that: in order to expand the scope of application, the place that described mechanical locking theftproof lock is applicable to the antitheft door of all kinds of needs, cabinet and so on is installed and used, and comprises but be not only limited to being arranged on car door, security door, safety cabinet, strongbox, built-in lock door, built-in lock cabinet and common door and commonly cashier's office in a shop using.
4. mechanical locking theftproof lock according to claim 1, is characterized in that: described mechanical locking theftproof lock rational in infrastructure, to manufacture and easy to use, interlocking, stealthy and good anti-theft effect; Corner (7) and rotating disk (9) are hidden in locked front lock core (2) in lock core and lock body (1), front lock core (2) and rear lock core (11) disconnect completely and connector (16) is hidden in stealthy hole, make robber and Wang Wufa rotation rear lock core (11) that unblanks, achieve integrate asynchronous, interlocking, stealth, self-locking, synchronized links the theftproof lock of several functions, safety parameters is high; Namely be also merely able to rotate front lock core (2) after using barbarous means to damage rotary catch, can not rotate be hidden in front lock core (2) below rear lock core (11), front lock core (2) is rotated and rear lock core (11) non rotating, serves real anti-theft function.
5. the manufacture method of a mechanical locking theftproof lock, it is characterized in that: lock body (1) during fabrication, have via hole, lock core hole in the upper manufacture of lock body (1), hold hole (24) and rotation locked groove (3), the centre that lock core hole is manufactured on rear locking (1) is used for installing lock core, has the via hole for allowing connection tongue (13) pass in the manufacture below of lock core hole; The described hole (24) that holds is manufactured on lock body (1), communicates with the hole (24) that holds on front lock core (2); Described rotation locked groove (3) is manufactured on lock core hole, create depression, along the cannelure on lock core hole direction, corresponding with the position of the swivelling chute (4) on front lock core (2), for allowing corner (7) lock core (2) rotation before movable and locking inside;
Lock core during fabrication, carries out division system lock core and causes front lock core (2) and rear lock core (11); During fabrication, the upper manufacture of front lock core (2) holds hole (24), swivelling chute (4), stealthy hole and special bitting hole (17) to described front lock core (2); The center of rotation position that described special bitting hole (17) and stealthy hole are manufactured on front lock core (2) is connected, specially join stealthy hole above, stealthy hole later; The shape of described special bitting hole (17) and the shape of pushing tow key (19) same or similar, the front portion of stealthy hole and connector (16) is same or similar; The described hole (24) that holds is manufactured on front lock core (2), communicates with the hole (24) that holds on lock body (1); The lock core that described swivelling chute (4) is manufactured on the stealthy bore portion of front lock core (2) wears out the outer round surface of front lock core (2) and stealthy hole, communicate with rotation locked groove (3) and stealthy hole, and corresponding with the rotation locked groove (3) on lock core hole, for installing rotary locking and allowing the parts of rotary locking operate;
Steady pin (10) creates pin or bolt, is fixed in the fixing hole rotated in locked groove (3), for fixing rotating disk (9);
Torsional spring (8) creates stage clip or torsion spring;
Push away handle (5) and create strip shape body, being fixed on connector (16), being arranged in swivelling chute (4), rotating around steady pin (10) for pushing away handle (5);
Rotating disk (9) and turning handle (6), corner (7) manufacture as a whole, or combine after manufacturing respectively; Described rotating disk (9) creates the disc or blocks that can rotate around steady pin (10), manufactures porose in the middle of rotating disk (9), and steady pin (10) is through the hole in the middle of rotating disk (9); Described rotating disk (9) pushes away handle (5) and corner (7) for connecting; Described turning handle (6) creates the strip shape body be fixed on rotating disk (9), rotates for driving rotating disk (9); Described corner (7) creates the blocks be fixed on rotating disk (9), is partly or entirely arranged on and rotates in locked groove (3), can not rotate for lock core before locking (2) in lock core hole;
During fabrication, the upper manufacture of rear lock core (11) has connecting hole (12) to rear lock core (11); Described connecting hole (12) creates polygon bearing bore or the groove of depression, or the bearing bore of shape of circular arc and line segment composition or groove, be manufactured on the center of rotation position of rear lock core (11), coordinate with the aft section of connector (16), parallel with lock core hole, can be through with the stealthy hole on front lock core (2);
Unblank to enable special bitting, described special bitting during fabrication, special bitting creates pushing tow key (19) and the shank of the key (18) two parts, is manufactured on by pushing tow key (19) on the shank of the key (18); The body keyway portion of described pushing tow key (19) in the special bitting hole (17) of insertion have at least manufacture on a lateral to have pitch face (20); The length that described pushing tow key (19) manufactures is longer than the length of special bitting hole (17), and the part that the length of pushing tow key (19) is longer than special bitting hole (17) is used for promoting connector (16) insertion connecting hole (12); The shape of described special bitting hole (17) creates with the shape of pushing tow key (19) same or similar, and described special bitting hole (17) creates the hole of single groove or multiple-grooved or multidirectional groove; Described multidirectional groove comprises V-shaped groove, U-lag, two-way chute, three-dimensional groove, cross recess, five to groove, six to groove, seven to groove, eight to groove, plum blossom groove;
Described connector (16) during fabrication, connector (16) is created anterior consistent with the shape in stealthy hole, the cylinder that rear portion is consistent with the shape of connecting hole (12), the front end of connector (16) is created the shape that can coordinate with the front end of pushing tow key (19), allow pushing tow key (19) that connector (16) can be promoted slide in stealthy hole and in connecting hole (12), when connector (16) slides in stealthy hole, its rear end can be inserted in connecting hole (12), for connecting front lock core (2) and rear lock core (11),
Described spring bearing bore (14) during fabrication, spring bearing bore (14) be manufactured on the bottom of connecting hole (12) and pass connecting hole (12), or spring bearing bore (14) is manufactured on the rearward end of connector (16), or spring bearing bore (14) is manufactured on the rearward end of connector (16) and the bottom of connecting hole (12) simultaneously; Spring bearing bore (14) is created blind hole or bearing bore, for installing return spring (15); Described return spring (15) creates stage clip;
Be provided with front lock core (2) and rear lock core (11) in lock body (1), rear lock core (11) is movably arranged on the rearward end of front lock core (2), disconnects completely with front lock core (2); Manufacture in described front lock core (2) and hold hole (24), swivelling chute (4), specially bitting hole (17) and stealthy hole, connector (16) is installed in stealthy hole; Connecting hole (12) is had in described rear lock core (11), the rear end of rear lock core (11) is fixed with and connects tongue (13), be connected with link gear after connecting the via hole of tongue (13) through lock body (1) rear portion, link gear is connected with dead bolt; Described hold in hole (24) to be provided with hold spring (21), hold post (22) and hold head (23); In described swivelling chute (4), rotary catch is installed.
6. according to claim 1 and mechanical locking theftproof lock according to claim 5, it is characterized in that: for the ease of manufacturing and assembling, the manufacture hop count of lock core (2) before changing, the described easily manufactured needs of lock body (1) according to internal construction and the needs of manufacturing process, front lock core (2) segmentation manufacture again near the end or end in stealthy hole, or in the segmentation manufacture again of the position of squeezing groove, or in the position segmentation manufacture again of swivelling chute (4), front lock core (2) is created entirety or multistage, the each section of lock core that segmentation manufactures can synchronous rotary or can separately asynchronous rotation,
In order to manufacture the needs with assembly technology, lock body (1), during fabrication according to technological requirement and needs, creates entirety or multistage lock body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671905.1A CN104499843A (en) | 2014-11-21 | 2014-11-21 | Mechanical anti-theft locking lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410671905.1A CN104499843A (en) | 2014-11-21 | 2014-11-21 | Mechanical anti-theft locking lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104499843A true CN104499843A (en) | 2015-04-08 |
Family
ID=52941284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410671905.1A Withdrawn CN104499843A (en) | 2014-11-21 | 2014-11-21 | Mechanical anti-theft locking lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104499843A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3503660A1 (en) * | 1985-02-04 | 1986-08-07 | Fa. Wilhelm Karrenberg, 5620 Velbert | Locking device with locking cylinder and flat key |
| CN104033024A (en) * | 2014-05-31 | 2014-09-10 | 徐園植 | Automatic alarm invisible connection interlocking double-key anti-theft lock |
| CN104088533A (en) * | 2014-05-26 | 2014-10-08 | 余虹仪 | Asynchronous alarming and invisible interlocking anti-theft lock |
-
2014
- 2014-11-21 CN CN201410671905.1A patent/CN104499843A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3503660A1 (en) * | 1985-02-04 | 1986-08-07 | Fa. Wilhelm Karrenberg, 5620 Velbert | Locking device with locking cylinder and flat key |
| CN104088533A (en) * | 2014-05-26 | 2014-10-08 | 余虹仪 | Asynchronous alarming and invisible interlocking anti-theft lock |
| CN104033024A (en) * | 2014-05-31 | 2014-09-10 | 徐園植 | Automatic alarm invisible connection interlocking double-key anti-theft lock |
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Application publication date: 20150408 |