CN104790768B - A kind of mechanical linkage pair lock - Google Patents

A kind of mechanical linkage pair lock Download PDF

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Publication number
CN104790768B
CN104790768B CN201510158498.9A CN201510158498A CN104790768B CN 104790768 B CN104790768 B CN 104790768B CN 201510158498 A CN201510158498 A CN 201510158498A CN 104790768 B CN104790768 B CN 104790768B
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China
Prior art keywords
sheet
fixed
driving wheel
latch
hole
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CN201510158498.9A
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CN104790768A (en
Inventor
庄子平
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LIANCHENG MACHINERY (NINGBO) CO Ltd
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LIANCHENG MACHINERY (NINGBO) CO Ltd
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Abstract

Mechanical linkage pair disclosed by the invention is locked, including lock housing, upper connecting rod, lower link, pull bar drive mechanism and pull bar fixed mechanism, upper connecting rod is connected with upper latch, lower link is connected with lower latch, upper connecting rod is connected by rack pinion assembly with lower link, the cavity for accommodating main lock locking bolt it is provided with between upper connecting rod and lower link, pull bar drive mechanism is used for driving upper connecting rod and the most longitudinal folding of lower link, pull bar fixed mechanism is for the fixing upper connecting rod opened and lower link, pull bar drive mechanism includes the driving wheel Slave Block being coaxially disposed, driving wheel sheet, driving wheel and first drives gear, pull bar fixed mechanism includes Fixed latches, second drives gear, first cushion block, latch connects sheet and is fixed on the first panel beating sheet that latch connects the bottom surface of sheet, second panel beating sheet and latch tooth bar.The safety of the present invention and theftproof performance are good, possess automatic locking function, with the main lock being arranged on active door with the use of, safety and the theftproof performance of interior door can be improved.

Description

A kind of mechanical linkage pair lock
Technical field
The present invention relates to a kind of mechanical lock, specifically a kind of mechanical linkage pair lock.
Background technology
Existing mechanical lock is generally used for antitheft door of entering the room, and is mostly installed by developer is unified, the A level lock that security performance is relatively low Usually, there is certain deficiency in main product in terms of safety.Skilled unlocking theft is a kind of novel theft mode, Suspect uses the skilled unlocking instrument of specialty, can open the door lock of antitheft door, burglary, and quilt at short notice After robber, the door lock of antitheft door still stands intact.Along with the improvement of people's living standard, (villa, individual are included for interior door The balcony door of courtyard and courtyard door etc.) the requirement of safety the most gradually step up.Interior door generally comprises active door and passive door, Main lock is installed on active door, passive door is installed pair lock, is realized the folding of active door and passive door by the cooperation of major and minor lock. But the door latch structure of existing interior door is typically more simple, is the most only connected by a piece of locking plate, safety between active and passive door Property and anti-theft are poor, and need the locking bolt manually pulling passive door top and bottom to be fixed on doorframe by passive door, Secondary lock needs first to be turned back by locking bolt before unblanking, operation inconvenience.
Summary of the invention
The technical problem to be solved is: provide the mechanical linkage pair that a kind of theftproof performance is good, possess automatic locking function Lock.
The present invention solves the technical scheme that above-mentioned technical problem used: a kind of mechanical linkage pair lock, including lock housing and installation Being arranged on the upper connecting rod in described lock housing, lower link, pull bar drive mechanism and pull bar fixed mechanism, described upper connecting rod is with upper Latch is connected, and described lower link is connected with lower latch, is provided with for accommodating master between described upper connecting rod and described lower link The cavity of lock locking bolt, longitudinal folding while that described pull bar drive mechanism being for driving described upper connecting rod and described lower link, Described pull bar fixed mechanism is for the fixing upper connecting rod opened and lower link, and described pull bar drive mechanism includes being coaxially disposed Driving wheel Slave Block, driving wheel sheet, driving wheel and first drive gear, and described driving wheel Slave Block is arranged on driving wheel cushion block On, described driving wheel cushion block is fixed in described lock housing, and described driving wheel sheet is arranged on described driving wheel with described Between driving wheel Slave Block, the first described driving geared sleeve is located at the outside of described driving wheel, bolt on described driving wheel sheet Having extension spring, the other end of described extension spring to be connected in described lock housing, described driving wheel is provided with the first through hole, described The big handle in the two ends of the first through hole are used for installation room and outdoor, described upper connecting rod is passed by rack-and-pinion with described lower link Dynamic assembly is connected, and the first described driving gear is connected with described rack pinion assembly;Described pull bar fixed mechanism bag Include Fixed latches, second drive gear, the first cushion block, latch connect sheet and are fixed on described latch and connect the bottom surface of sheet First panel beating sheet, the second panel beating sheet and latch tooth bar, the first described cushion block is fixed in described lock housing, and described is fixing slotting Pin be plugged in the first described cushion block and can transverse shifting, described latch tooth bar is meshed with the described second driving gear, The second described driving gear is provided with the second through hole, and the second described through hole is little handle in installation room, and described latch is even Contact pin is arranged on the first described cushion block, is provided with first between the first described panel beating sheet and the inwall of the first described cushion block Return spring, is provided with the second return spring between the second described panel beating sheet and the inwall of the first described cushion block, described inserts Having third through-hole and longitudinally disposed fourth hole on pin connection sheet, described third through-hole includes the 3rd inclined hole obliquely, Being fixed with the first connection post on the first described cushion block, the first described connection post is plugged in described fourth hole, described One end of Fixed latches is fixed with the second connection post, and the second described connection post is plugged in described third through-hole, and described consolidates The other end determining latch fixes described rack pinion assembly for connecting, and during locking, latch connects shifting on sheet, pushes away Dynamic Fixed latches stretches out the first cushion block fixed gear rack gear assembly and upper connecting rod and lower link.
After mechanical linkage pair of the present invention lock is installed on passive door, in the indoor side of passive door, by big in the first through hole installation room Handle, by little handle in the second through hole installation room;In the outdoor side of passive door, by handle big outside the first through hole installation room. Outdoor big handle after installation is fixed, and the most rotatably, indoor big handle is rotatable.When locking, first big handle in turning cell, Make the driving wheel in pull bar drive mechanism and first drive pinion rotation and by rack pinion assembly drive upper and lower pull bar and Upper and lower latch moves and opens, and main lock locking bolt stretches in cavity, is connected by passive door fixing, so with doorframe and active door Little handle in rear turning cell, makes the second driving pinion rotation on pull bar fixed mechanism, drives latch tooth bar and latch to connect sheet and indulge To movement, while latch connection sheet moves, the hole wall of the 3rd inclined hole promotes the second connection post transverse shifting, makes Fixed latches End is stretched out the first cushion block and is connected with rack pinion assembly fixing, thus fixing upper and lower pull bar and upper and lower latch, i.e. Complete the automatic locking of secondary lock.After locking, by upper and lower latch and main lock locking bolt, passive door is fixed reliably, safety Property and theftproof performance are good.
Being provided with locking mechanism between described pull bar drive mechanism and described pull bar fixed mechanism, described locking mechanism includes Tabletting and elastic card, the bottom of described driving wheel Slave Block be circumferentially with the first breach, at described driving wheel Slave Block Top form a top splenium, this top splenium is made up of horizontal part and rake, and the thickness of described rake is more than described water The thickness in flat portion, described driving wheel cushion block be circumferentially with the second breach, one end of described elastic card is through described the Two breach stretch in the first described breach, and described elastic card is provided with locating dowel, described on described driving wheel cushion block The both sides of the first breach be respectively provided with one the 3rd and connect post, described tabletting be provided with respectively with described locating dowel and two the Three connect the connecting hole that post is suitable, and described tabletting is pressed on described elastic card, and described elastic card is provided with Convex pleated portions, the end of the first described panel beating sheet and the second described panel beating sheet is respectively equipped with matches with described pleated portions The first grab and the second grab, rotate driving wheel Slave Block time, rake can press elastic card, makes the first grab and second Grab departs from pleated portions, thus pull bar fixed mechanism may move and fix the upper connecting rod and lower link opened.
After between pull bar drive mechanism and pull bar fixed mechanism, locking mechanism is set, during locking, big handle in first turning cell, Driving wheel and first drives pinion rotation, makes rack pinion assembly drive upper and lower pull bar and upper and lower latch to move and open, When driving wheel Slave Block turns to the ends contact of its rake and elastic card, the end of rake pressing elastic card, make Pleated portions moves down, thus the first grab and the second grab depart from pleated portions, and now, pull bar fixed mechanism could move, and at this moment turns Dynamic indoor little handle, can complete the automatic locking of secondary lock.The design of locking mechanism, big handle in necessary first operating room when making to lock, After making upper and lower pull bar and upper and lower latch move into place, the corresponding operating of little handle in just carrying out subsequent chamber, fixing upper and lower Pull bar and upper and lower latch, it is to avoid maloperation, promote pair further and lock the safety of lock.
Described rack pinion assembly includes that stepped gear, upper rack, lower tooth bar and two panels connect sheet, and described two panels connects Sheet is arranged at the upper end of described upper rack parallel, and described two panels connects sheet and surrounds described cavity, and described two panels connects sheet Upper end connect have union joint, the inner side of described union joint to be provided with the upper pin hole for installing described upper latch, described The outside of union joint is fixed with described upper connecting rod, and described upper rack is provided with hole, location, the first tooth bar and the second tooth bar, institute The hole, location stated is for connecting described Fixed latches, and the first described tooth bar is meshed with the bottom of described stepped gear, described Stepped gear top with described first drive gear be meshed, the inner side of the lower end of described lower tooth bar is provided with for installing The lower pin hole of the lower latch stated, the outside of described lower tooth bar is fixed with described lower link, and the upper end of described lower tooth bar sets Having the 3rd tooth bar, the described teeth portion on the 3rd tooth bar is relative with the teeth portion on the second described tooth bar, the 3rd described tooth bar with The second described tooth bar is meshed with the little gear of two accumbency simultaneously, and two described little gears are arranged on pinion stand, described Pinion stand be fixed in described lock housing.
Compared with prior art, it is an advantage of the current invention that: mechanical linkage pair disclosed by the invention lock safety and theftproof performance are good, Possesses automatic locking function.Mechanical linkage pair of the present invention lock be installed on passive door, with the main lock being arranged on active door with the use of, Safety and the theftproof performance of interior door can be improved.
Accompanying drawing explanation
Fig. 1 is the explosive view of embodiment pair lock;
Fig. 2 is the front view of the secondary lock after removing cap;
Fig. 3 is that cut-away illustration is cutd open by the office corresponding to Fig. 2;
Fig. 4 is pull bar drive mechanism and the connection diagram of pull bar fixed mechanism in embodiment;
Fig. 5 is the outside drawing of driving wheel Slave Block in embodiment;
Fig. 6 is the outside drawing that in embodiment, latch connects sheet;
Fig. 7 is the outside drawing of upper rack in embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
The mechanical linkage pair lock of embodiment, the upper connecting rod 21 including lock housing 1 and being mounted in lock housing 1, lower link 22 (not shown in figure 1), pull bar drive mechanism and pull bar fixed mechanism, upper connecting rod 21 is connected with upper latch 23, lower link 22 It is connected with lower latch 24, between upper connecting rod 21 and lower link 22, is provided with the cavity for accommodating main lock locking bolt (not shown) 25, pull bar drive mechanism is used for driving upper connecting rod 21 and the most longitudinal folding of lower link 22, and pull bar fixed mechanism is beaten for fixing The upper connecting rod 21 opened and lower link 22, driving wheel Slave Block 31 that pull bar drive mechanism includes being coaxially disposed, driving wheel sheet 32, Driving wheel 33 and first drives gear 34, and driving wheel Slave Block 31 is arranged on driving wheel cushion block 35, and driving wheel cushion block 35 is solid Being scheduled in lock housing 1, driving wheel sheet 32 is arranged between driving wheel 33 and driving wheel Slave Block 31, and first drives gear 34 to overlap Being located at the outside of driving wheel 33, on driving wheel sheet 32, bolt has extension spring 36, the other end of extension spring 36 to be connected in lock housing 1, drives Driving wheel 33 is provided with the first through hole 331, and upper connecting rod 21 is connected by rack pinion assembly with lower link 22.
Pull bar fixed mechanism includes that Fixed latches 41, second drives gear the 42, first cushion block 43, latch connect sheet 44 and consolidate Being scheduled on the first panel beating sheet the 45, second panel beating sheet 46 and latch tooth bar 47 that latch connects the bottom surface of sheet 44, the first cushion block 43 is solid Be scheduled in lock housing 1, in Fixed latches 41 is plugged in the first cushion block 43 and can transverse shifting, latch tooth bar 47 and the second driving tooth Wheel 42 is meshed, and second drives gear 42 to be provided with the second through hole 421, and latch connects sheet 44 and is arranged on the first cushion block 43, The first return spring 48, the second panel beating sheet 46 and the first pad it is provided with between first panel beating sheet 45 and the inwall of the first cushion block 43 Being provided with the second return spring 49 between the inwall of block 43, latch connects and has third through-hole 441 and longitudinally disposed on sheet 44 Fourth hole 442, third through-hole 441 includes the 3rd inclined hole 443 obliquely, the first cushion block 43 is fixed with the first connection post 431, first connects post 431 is plugged in fourth hole 442, and one end of Fixed latches 41 is fixed with the second connection post 411, Second connects post 411 is plugged in third through-hole 441.
Rack pinion assembly includes that stepped gear 51, upper rack 52, lower tooth bar 53 and two panels connect sheet 54, and two panels connects sheet 54 upper ends being arranged at upper rack 52 parallel, two panels connects sheet 54 and surrounds cavity 25, and two panels connects the upper end connection of sheet 54 to be had Union joint 541, the inner side of union joint 541 is provided with the upper pin hole 542 for installing latch 23, the outside of union joint 541 Being fixed with upper connecting rod 21, upper rack 52 is provided with hole, location the 523, first tooth bar 521 and the second tooth bar 522, positions hole 523 For connecting Fixed latches 41, the first tooth bar 521 is meshed with the bottom of stepped gear 51, and the top of stepped gear 51 is driven with first Moving gear 34 is meshed, and the inner side of the lower end of lower tooth bar 53 is provided with the lower pin hole 531 for installing lower latch 24, lower tooth bar The outside of 53 is fixed with lower link 22, and the upper end of lower tooth bar 53 is provided with the 3rd tooth bar (not shown), the tooth on the 3rd tooth bar Portion is relative with the teeth portion on the second tooth bar 522, and the while of the 3rd tooth bar and the second tooth bar 522, little gear 55 phase with two accumbency is nibbled Closing, two little gears 55 are arranged on pinion stand 56, and pinion stand 56 is fixed in lock housing 1.
Being provided with locking mechanism between pull bar drive mechanism and pull bar fixed mechanism, locking mechanism includes tabletting 61 and elastic card 62, the bottom of driving wheel Slave Block 31 be circumferentially with the first breach 311, thus formed at the top of driving wheel Slave Block 31 One top splenium 312, this top splenium 312 is made up of horizontal part 313 and rake 314, and the thickness of rake 314 is more than level The thickness in portion 313, driving wheel cushion block 35 be circumferentially with the second breach 351, one end of elastic card 62 pass the second breach 351 stretch in the first breach 311, and elastic card 62 is provided with locating dowel 621, at the first breach 311 on driving wheel cushion block 35 Both sides be respectively provided with one the 3rd connect post 352, tabletting 61 is provided with and is connected post 352 with locating dowel 621 and two the 3rd respectively Suitable connecting hole 611, tabletting 61 is pressed on elastic card 62, and elastic card 62 is provided with the pleated portions 622 of epirelief, The end of the first panel beating sheet 45 and the second panel beating sheet 46 is respectively equipped with the first grab 451 and second matched with pleated portions 622 Grab 461, when rotating driving wheel Slave Block 31, rake 314 can press elastic card 62, makes the first grab 451 and second Grab 461 departs from pleated portions 622, thus pull bar fixed mechanism may move and fix the upper connecting rod 21 and lower link 22 opened.
Above-mentioned mechanical linkage pair lock need to the main lock being arranged on active door with the use of.It is passive that above-mentioned mechanical linkage pair lock is installed on Behind the door, in the indoor side of passive door, by handle big in the first through hole 331 installation room, by the second through hole 421 installation room Interior little handle;In the outdoor side of passive door, by handle big outside the first through hole 331 installation room.Outdoor big handle after installation Being fixed, the most rotatably, indoor big handle is rotatable.
After above-mentioned mechanical linkage pair is locked on passive door installation, when passive door is opened, upper connecting rod 21 and lower link 22 are regained, Gu Determining latch 41 and depart from hole 523, location, when secondary lock needs to lock, its process of locking is: first big handle in turning cell, makes driving Wheel 33 and first drives gear 34 to rotate, and first drives gear 34 rotate and drive stepped gear 51 to rotate, and stepped gear 51 carries again Dynamic first tooth bar 521 and the second tooth bar 522 move, and two little gears 55 play the role of changing, make the first tooth bar 521 move upward, Second tooth bar 522 moves downward, thus drives upper connecting rod 21, upper latch 23 and lower link 22, lower latch 24 to move and open, When driving wheel Slave Block 31 turns to the ends contact of its rake 314 and elastic card 62, rake 314 presses compression elasticity The end of card 62, makes pleated portions 622 move down, thus the first grab 451 and the second grab 461 depart from pleated portions 622, inserts Pin connects sheet 44 appropriate return under the elastic force effect of the first return spring 48 and the second return spring 49, is rotated further by indoor wisp Hands, drives latch to connect sheet 44 and latch tooth bar 47 moves, while latch connection sheet 44 moves, and the hole of the 3rd inclined hole 443 Wall promotes the second connection post 411 transverse shifting, makes the end of Fixed latches 41 stretch out the first cushion block 43 and stretch into hole 523, location In, upper connecting rod 21, lower link 22 and upper latch 23, lower latch 24 are fixed, is finally completed the automatic locking of secondary lock.

Claims (3)

  1. null1. a mechanical linkage pair lock,Including lock housing and be mounted on the upper connecting rod in described lock housing、Lower link、Pull bar drive mechanism and pull bar fixed mechanism,Described upper connecting rod is connected with upper latch,Described lower link is connected with lower latch,The cavity for accommodating main lock locking bolt it is provided with between described upper connecting rod and described lower link,Described pull bar drive mechanism is for driving described upper connecting rod and the most longitudinal folding of described lower link,Described pull bar fixed mechanism is for the fixing upper connecting rod opened and lower link,It is characterized in that described pull bar drive mechanism includes the driving wheel Slave Block being coaxially disposed、Driving wheel sheet、Driving wheel and first drives gear,Described driving wheel Slave Block is arranged on driving wheel cushion block,Described driving wheel cushion block is fixed in described lock housing,Described driving wheel sheet is arranged between described driving wheel and described driving wheel Slave Block,The first described driving geared sleeve is located at the outside of described driving wheel,On described driving wheel sheet, bolt has extension spring,The other end of described extension spring is connected in described lock housing,Described driving wheel is provided with the first through hole,The big handle in the two ends of the first described through hole are used for installation room and outdoor,Described upper connecting rod is connected by rack pinion assembly with described lower link,The first described driving gear is connected with described rack pinion assembly;nullDescribed pull bar fixed mechanism includes Fixed latches、Second drives gear、First cushion block、Latch connects sheet and is fixed on the first panel beating sheet that described latch connects the bottom surface of sheet、Second panel beating sheet and latch tooth bar,The first described cushion block is fixed in described lock housing,Described Fixed latches is plugged in the first described cushion block and can transverse shifting,Described latch tooth bar drives gear to be meshed with described second,The second described driving gear is provided with the second through hole,The second described through hole is little handle in installation room,Described latch connects sheet and is arranged on the first described cushion block,It is provided with the first return spring between the first described panel beating sheet and the inwall of the first described cushion block,It is provided with the second return spring between the second described panel beating sheet and the inwall of the first described cushion block,Third through-hole and longitudinally disposed fourth hole is had on described latch connection sheet,Described third through-hole includes the 3rd inclined hole obliquely,The first connection post it is fixed with on the first described cushion block,The first described connection post is plugged in described fourth hole,One end of described Fixed latches is fixed with the second connection post,The second described connection post is plugged in described third through-hole,The other end of described Fixed latches is for connecting fixing described rack pinion assembly,During locking,Latch connects shifting on sheet,Fixed latches is promoted to stretch out the first cushion block fixed gear rack gear assembly and upper connecting rod and lower link.
  2. nullA kind of mechanical linkage pair lock the most according to claim 1,It is characterized in that being provided with locking mechanism between described pull bar drive mechanism and described pull bar fixed mechanism,Described locking mechanism includes tabletting and elastic card,The bottom of described driving wheel Slave Block be circumferentially with the first breach,A top splenium is formed at the top of described driving wheel Slave Block,This top splenium is made up of horizontal part and rake,The thickness of described rake is more than the thickness of described horizontal part,Described driving wheel cushion block be circumferentially with the second breach,One end of described elastic card is stretched in the first described breach through the second described breach,Described elastic card is provided with locating dowel,It is respectively provided with one the 3rd on described driving wheel cushion block in the both sides of the first described breach and connects post,Described tabletting is provided with and is connected, with described locating dowel and two the 3rd, the connecting hole that post is suitable respectively,Described tabletting is pressed on described elastic card,Described elastic card is provided with the pleated portions of epirelief,The end of the first described panel beating sheet and the second described panel beating sheet is respectively equipped with the first grab and the second grab matched with described pleated portions,When rotating driving wheel Slave Block,Rake can press elastic card,The first grab and the second grab is made to depart from pleated portions,Thus pull bar fixed mechanism may move and fix the upper connecting rod and lower link opened.
  3. nullA kind of mechanical linkage pair lock the most according to claim 1 and 2,It is characterized in that described rack pinion assembly includes stepped gear、Upper rack、Lower tooth bar and two panels connect sheet,Described two panels connects sheet and is arranged at the upper end of described upper rack parallel,Described two panels connects sheet and surrounds described cavity,Described two panels connects the upper end connection of sheet union joint,The inner side of described union joint is provided with the upper pin hole for installing described upper latch,The outside of described union joint is fixed with described upper connecting rod,Described upper rack is provided with hole, location、First tooth bar and the second tooth bar,Described hole, location is for connecting described Fixed latches,The first described tooth bar is meshed with the bottom of described stepped gear,The top of described stepped gear drives gear to be meshed with described first,The inner side of the lower end of described lower tooth bar is provided with the lower pin hole for installing described lower latch,The outside of described lower tooth bar is fixed with described lower link,The upper end of described lower tooth bar is provided with the 3rd tooth bar,The described teeth portion on the 3rd tooth bar is relative with the teeth portion on the second described tooth bar,The 3rd described tooth bar is meshed with the little gear of two accumbency with the second described tooth bar simultaneously,Two described little gears are arranged on pinion stand,Described pinion stand is fixed in described lock housing.
CN201510158498.9A 2015-04-07 2015-04-07 A kind of mechanical linkage pair lock Active CN104790768B (en)

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Application Number Priority Date Filing Date Title
CN201510158498.9A CN104790768B (en) 2015-04-07 2015-04-07 A kind of mechanical linkage pair lock

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Application Number Priority Date Filing Date Title
CN201510158498.9A CN104790768B (en) 2015-04-07 2015-04-07 A kind of mechanical linkage pair lock

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CN104790768A CN104790768A (en) 2015-07-22
CN104790768B true CN104790768B (en) 2017-01-04

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227723A (en) * 1977-09-16 1980-10-14 Laperche Multiple bolt latch
EP1580361A1 (en) * 2004-03-23 2005-09-28 Ching-Tien Lin Door lock
CN102071844A (en) * 2009-11-25 2011-05-25 林响 Multi-bolt double-quick burglarproof lock
CN202249281U (en) * 2011-05-04 2012-05-30 西安慧晶智能科技有限公司 Fast triggering anti-theft lock
CN203821991U (en) * 2014-02-18 2014-09-10 高旭斌 Intelligent anti-theft lock body

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3807762B2 (en) * 1995-10-05 2006-08-09 美和ロック株式会社 Emergency strike for emergency exit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227723A (en) * 1977-09-16 1980-10-14 Laperche Multiple bolt latch
EP1580361A1 (en) * 2004-03-23 2005-09-28 Ching-Tien Lin Door lock
CN102071844A (en) * 2009-11-25 2011-05-25 林响 Multi-bolt double-quick burglarproof lock
CN202249281U (en) * 2011-05-04 2012-05-30 西安慧晶智能科技有限公司 Fast triggering anti-theft lock
CN203821991U (en) * 2014-02-18 2014-09-10 高旭斌 Intelligent anti-theft lock body

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