CN102953602A

CN102953602A - Flat-tumbler antitheft lock and key

Info

Publication number: CN102953602A
Application number: CN2011102431130A
Authority: CN
Inventors: 张月平
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-23
Filing date: 2011-08-23
Publication date: 2013-03-06

Abstract

Disclosed are a flat-tumbler antitheft lock and a key. An eccentric wheel is disposed in a round hole of a lock box and a round hole of a cover plate. A shift plate is disposed on the eccentric wheel. One end of a key chuck hooks the eccentric wheel, and the other end of the key chuck is abutted to lock plates which are disposed on a round pin, and the lock plates are provided with a spring. A limit pin of an opening lock plate is locked in a groove of the key chuck. A safety bolt is disposed on the round pin, one side of the safety bolt is aligned with notches of the lock plates, and the other side of the safety bolt locks a square bolt. The safety bolt is connected with the opening lock plate through a spring. The square bolt and a latch bolt are provided with springs which are disposed in slides respectively, and a slider is disposed in the slide between the two bolts. A pin is disposed at a straight edge of a triangular oblique end of the square bolt. A spring and the pin are disposed in a pin box, a reverse shift plate is disposed on the pin box, one end of the reverse shift plate suspends the pin, and the other end of the reverse shift plate contacts with a multifunctional upper round pin of the eccentric wheel. Key teeth of the key are 0-5mm in length and include 10 types of teeth different in length and arranged side by side. The flat-tumbler antitheft lock is simple in structure and is only unlocked with special keys. The flat-tumbler antitheft lock is safe and reliable and is applicable to various doors.

Description

Blade type theft-proof lock and key

Affiliated technical field:

The present invention relates to a kind of anti-theft device frontier, especially can stop the technology unlocking method to be opened.

Background technology:

At present, known mechanical anti-theft lock pin structure is comprised of core housing in the double-deck pellet of spring.Can freely adjust pellet after will key inserting and unblank.Also available unlocking tool adjustment pellet is unblanked.

Summary of the invention:

Can not prevent other key and technology unlocking unlatching in order to overcome existing mechanical anti-theft lock.The invention provides a kind of lock, this lock can not be opened by other key or technology unlocking.

The technical solution adopted for the present invention to solve the technical problems is: the multifunctional eccentric wheel is installed in lock box and cover plate circular hole, is installed at eccentric wheel and pull out sheet.The first end of key fixture catches on eccentric wheel, and an end is by locking plate, and locking plate is installed on the round pin.Each locking plate is equipped with spring, and the position-limit foot of opening on the locking plate is stuck in the key chuck groove.Safe tongue is installed on the round pin, and one side is aimed at the locking plate breach, and one side is blocked square lock bolt.Safe tongue with open locking plate and be connected with spring, on square, the angle dead bolt spring is housed.Install respectively in the chute, slide block is installed between two dead bolts in the chute, and latch is installed at square lock bolt triangle angle straight flange place.Mounting spring and latch in the latch box are installed reverse plectrum on the latch box, plectrum one end is chosen latch, an end contacts with the upper round pin of multifunctional eccentric wheel.The long 0-5mm of key bit, key bit is comprised of 10 kinds of teeth different in size.Clockwise eccentric wheel drive activity key chuck retreats, and the keyhole on the movable key chuck aligns with keyhole on lock box, the cover plate.Insert key eccentric wheel is returned the original place, promote key thereby promote the key chuck under acting force of the spring, key bit promotes corresponding locking plate rests on the specific straight line breach on the locking plate.Open simultaneously locking plate the key chuck is fixed on this position, and safe tongue the stopping of moving contact square shaped dead bolt in the breach.Rotate counterclockwise eccentric wheel and drive and to pull out sheet rotation plectrum and stir slide block, slipper push is square, the angle dead bolt.Shrink in lock box, square lock bolt is blocked by latch.The angle dead bolt can freely be opened the unrestricted eccentric wheel drive key chuck that clockwise rotates and retreat.Keyhole on the key chuck aligns with keyhole on lock box, the cover plate and extracts key.Clockwise rotate eccentric wheel during pinning until round pin promotes reverse plectrum, push latch aside.Square lock bolt ejects lock box under acting force of the spring, safe tongue returns under acting force of the spring and blocks square lock bolt, and locking plate returns under acting force of the spring.Breach on the locking plate staggers, on keyhole during unlatching on the movable key chuck and the lock box cover plate, keyhole misplaces, and is contracted to 3MM by 8MM, open locking plate the key chuck is limited in this position, long 5MM key bit and locking plate are staggered to be interlocked and can not to move.The unlatching locking plate blocks movable key chuck when spurring safe tongue and can not retreat, and opens when locking plate is pulled to extreme position and can not remove stopping of safe tongue square shaped dead bolt.Having reached can be by the purpose of other key or technology unlocking unlatching.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is outline drawing of the present invention.

Fig. 2 is that the A of Fig. 1 is to view.

Fig. 3 opens cover plate embodiment constructional drawing.

Fig. 4 is the A-A view of Fig. 3.

Fig. 5 is the B-B view of Fig. 3.

Fig. 6 is the C-C view of Fig. 3.

Fig. 7 is the D-D view of Fig. 3.

Fig. 8 is

locking plate

14,15,16 views.

Embodiment constructional drawing when Fig. 9 is unlatching.

Figure 10 is installed on a upper embodiment constructional drawing.

Figure 11 is installed on a upper embodiment front view.

Figure 12 is key figure.

1. cover plates among the figure, 2. square lock bolt, 3. angle dead bolt, 4. spring, 5. slide block, 6. latch box, 7. latch, 8. spring, 9. transmission square steel, 10. reverse plectrum, 11. springs, 12. key chucks, 13. safe tongue, 14. locking plates, 15. locking plates, 16. open locking plate, 17. spring leaf, 18 eccentric wheels, 19 plectrums, 20. lock boxes, 21. spring, 22. outer handles, 23. fixed heads, 24. keys.

In Fig. 1, eccentric wheel (18) is in lock box (20) cover plate (1) circular hole

In Fig. 3, the key chuck is equipped with spring on (12), the first end of key fixture catches on eccentric wheel (18), one end is by locking plate (14,15,16), locking plate (14,15,16) be installed on the interior round pin of lock box, opening locking plate (16) position-limit foot is stuck in the groove on the key chuck (12), safe tongue (13) is installed on the interior round pin of lock box, one side is aimed at locking plate (14,15) breach, one side is blocked square lock bolt (2), spring (4) is housed on the square lock bolt (2) to be installed in the chute, spring (4) is housed on the angle dead bolt (3) to be installed in the chute, slide block (5) is installed between square lock bolt (2) and the angle dead bolt (3) in the chute, latch is installed in the latch box, spring, reverse plectrum is installed on the latch box, and oppositely plectrum one end is chosen latch, and an end contacts with eccentric wheel.

In Fig. 4, when eccentric wheel (18) is clockwise, pushes down plectrum (19) and rotate together, stir slide block.

In Fig. 7, during eccentric wheel (18) counter-rotating, promote reverse plectrum (10) and push latch (7) aside.

In Fig. 9, clockwise eccentric wheel (18), eccentric wheel drives key chuck (12) and retreats, keyhole aligns with cover plate (1), the upper keyhole of lock box (20) on the key chuck, insert key (24), counter-rotating eccentric wheel (18) returns original position, key chuck reposition under spring (11) active force, and dislocation occurs and dwindles keyhole in the keyhole on the key chuck (12) and cover plate (1), the upper keyhole of lock box (20); Narrow down to 3mm by 8mm.Key overcomes spring leaf (17) power, key bit different in size promotes relative locking plate (14,15) and opens locking plate (16), make the upper diverse location breach of locking plate (14,15) rest on a specific straight line, open locking plate (16) pulling spring (21), spring (21) spurs safe tongue (13) and moves in locking plate (14,15) breach, removes square shaped dead bolt (2) and stops; Unlatching locking plate (16) blocks simultaneously key chuck (12) and can not retreat, open locking plate (16) and safe tongue (13) can not be moved to breach when not shifting extreme position onto, counter-rotating eccentric wheel (18), eccentric wheel (18) drives plectrum (19), plectrum (19) is stirred slide block (5), slide block (5) promotes square lock bolt (2) and angle dead bolt (3) shrinks in lock box (20), square lock bolt (2) backs down and strides across latch (7), latch (7) is ejected by spring (8) and blocks square lock bolt (2), and angle dead bolt (3) can freely be opened, lock.Counter-rotating eccentric wheel (18) drives key chuck (12) and retreats, and extracts key (24).The eccentric wheel (18) that reverses again drives reverse plectrum (10) and pushes latch aside, square lock bolt (2) is ejected by spring (4), key chuck (12) retreats with opening locking plate (16) and returns, and spring (21) promotes safe tongue (13) and blocks square lock bolt (2).

In Figure 10, handle peace (22) is contained on the fixed head (23), and transmission square steel (9) connects inside and outside handle (22) by eccentric wheel (18) square hole.

Claims

1. blade type theft-proof lock and key; Setting-up eccentricity wheel in lock box and cover plate circular hole pulls out sheet in the eccentric wheel installation.The first end of key fixture catches on eccentric wheel, and an end is by locking plate, and locking plate is installed on the round pin.Each locking plate is equipped with spring, and the position-limit foot of opening on the locking plate is stuck in the key chuck groove.Safe tongue is installed on the round pin, and one side is aimed at the locking plate breach, and one side is blocked square lock bolt.Safe tongue with open locking plate and be connected with spring, on square, the angle dead bolt spring is housed, install respectively in the chute, slide block is installed between two dead bolts in the chute, and latch is installed at square lock bolt triangle angle straight flange place.Mounting spring and latch in the latch box are installed reverse plectrum on the latch box, plectrum one end catches on latch, an end contacts with the upper round pin of multifunctional eccentric wheel.The long 0-5mm of the key bit of key, key bit is comprised of 10 kinds of teeth different in size.It is characterized in that; Key on keyhole during unlatching on the movable key chuck and lock box, the cover plate is empty to misplace, and is contracted to 3MM by 8MM, opens locking plate the key chuck is limited in this position, and long 5MM key bit and locking plate are staggered to be interlocked and can not to move.

2. blade type theft-proof lock according to claim 1 and key is characterized in that: open locking plate and spur safe tongue and block simultaneously movable key chuck and can not retreat, open when locking plate is pulled to extreme position and can not remove stopping of safe tongue square shaped dead bolt.