CN102747867A

CN102747867A - Anti-theft lock of anti-theft door

Info

Publication number: CN102747867A
Application number: CN2012102245678A
Authority: CN
Inventors: 蒋沛辉
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-07-02
Filing date: 2012-07-02
Publication date: 2012-10-24
Anticipated expiration: 2032-07-02
Also published as: CN102747867B

Abstract

The invention relates to an anti-theft lock of an anti-theft door. The anti-theft lock comprises a lock shell, a lock core, a square tongue and a touch tongue, wherein the rear end of the touch tongue is matched with a first inching switch fixed in the lock shell; a side edge of the square tongue is engaged with a fan-shaped toothed sheet; the fan-shaped toothed sheet is provided with a positioning pin; the positioning pin is slidably inserted in a cambered sliding groove in a poke sheet and a cambered groove on the lock shell; the two ends of the poke sheet are provided with a locking baffle plate and an unlocking stop block which are matched with a rotary poke block in the lock core respectively; a convex top which protrudes on one side of the plane of the poke sheet is matched with a bump on the plane of a safety plate; and a safety sheet on the safety plate is matched with a clamping groove formed in the square tongue and the second inching switch in the lock shell respectively. According to the anti-theft lock, the defects of complex trigger design and low reliability of the anti-theft lock of the normal anti-theft door in the prior art are overcome; through the design, the protection performance of the anti-theft lock of the anti-theft door is integrally enhanced; and the anti-theft lock has the advantages of simple structure, flexibility and stability in trigger design of the anti-theft system and high reliability.

Description

The theftproof lock of security door

Technical field

The present invention relates to a kind of theftproof lock of security door.

Background technology

In the theftproof lock of traditional security door; The triggering design of its burglary-resisting system is not only very complicated; And reliability is lower, and some frequent misoperations that occur all can make burglary-resisting system work with disturbing, and have therefore also limited the widespread usage of burglary-resisting system in anti-theft lock for anti-theft.

Summary of the invention

For the burglary-resisting system that overcomes the theftproof lock of common security door in the prior art triggers complex design and the lower defective of reliability; The present invention provides a kind of theftproof lock of security door, and simple in structure, the burglary-resisting system triggering design sensitivity of the theftproof lock of this security door stablized, reliability is high.

The technical solution adopted for the present invention to solve the technical problems is: comprise the lock shell and be arranged on the lock core in the lock shell, square tongue, shake-up tongue; Touch the rear end of tongue and match with being fixed on the first interior microswitch of lock shell, the side of square tongue and fan-shaped gear piece mesh and by its promotion, fan-shaped gear piece is provided with alignment pin; In the arc chute and the deep-slotted chip breaker on the lock shell of alignment pin sliding plug on plectrum; Fan-shaped gear piece and plectrum can be slided along the deep-slotted chip breaker on the lock shell simultaneously, relative slip is also arranged between fan-shaped gear piece and plectrum, the two ends of plectrum have the latch-down baffle that raises up and the block of unblanking respectively; Latch-down baffle matches with rotation shifting block in the lock core with the block of unblanking; Plectrum plane one side has extends outstanding prominent top, and matching with projection be hinged on the safeguard plane of locking in the shell through torsion spring in prominent top, has the safety plate that raises up on the safeguard; With the rotation of hinged safeguard, safety plate respectively with square tongue on the draw-in groove that is provided with and second microswitch that is fixed in the lock shell match.

The present invention has strengthened the theftproof performance of anti-theft lock for anti-theft on the whole through above-mentioned concrete design, has advantage simple in structure, that burglary-resisting system triggering design sensitivity is stable, reliability is high.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the detailed content that this is real is described.

Fig. 1 is the structural representation of opening of the present invention.

Fig. 2 is the structural representation in the locking process of the present invention.

Fig. 3 is the structural representation of lock-out state of the present invention.

Fig. 4 is the structural representation of plectrum among the present invention.

Fig. 5 is the structural representation of safeguard among the present invention.

The specific embodiment

As shown in the figure; The present invention includes lock shell 1 and be arranged on lock core 2, square tongue 3, the shake-up tongue 4 in the lock shell 1; Touch the rear end of tongue 4 and match, the side of square tongue 3 and fan-shaped gear piece 6 meshes and by its promotion, fan-shaped gear piece 6 is provided with alignment pin 7 with first microswitch 5 in being fixed on lock shell 1; In the arc chute 9 and the deep-slotted chip breaker 10 on the lock shell 1 of alignment pin 7 sliding plugs on plectrum 8; Fan-shaped gear piece 6 and plectrum 8 can be slided along the deep-slotted chip breaker on the lock shell 1 10 simultaneously, and 8 of fan-shaped gear piece 6 and plectrums also have relative slip, and the two ends of plectrum 8 have the latch-down baffle 11 that raises up and the block 12 of unblanking respectively; Latch-down baffle 11 matches with rotation shifting block 13 in the lock core 2 with the block 12 of unblanking; Plectrum 8 planes one side has extends outstanding prominent top 14, and the projection 17 on safeguard 16 planes interior be hinged on lock shell 1 through torsion spring 15, prominent top 14 matches, and has the safety plate 21 that raises up on the safeguard 16; With the rotation of hinged safeguard 16, safety plate 21 respectively with square tongue 3 on the draw-in groove 18 that is provided with and second microswitch 19 that is fixed in the lock shell 1 match.Open under the theftproof lock opening at door leaf, as shown in Figure 1, touch the front end protrusion of tongue 4 and lock shell 1, touch the rear end of tongue 4 and separate with first microswitch 5, first microswitch 5 is in off-state; Safety plate 21 on the safeguard 16 presses triggering second microswitch 19, the second microswitches 19 and is in on-state; This moment, the burglary-resisting system of theftproof lock was not deployed troops on garrison duty.Close in the back antitheft locking lock process at door leaf, as shown in Figure 2, the rotation shifting block 13 in the lock core 2 promotes the latch-down baffle 11 of plectrum 8 raisings; Plectrum 8 can slide along the deep-slotted chip breaker on the lock shell 1 10 with fan-shaped gear piece 6 simultaneously, and through

arc chute

9,8 of fan-shaped gear piece 6 and plectrums also have relative slip; When fan-shaped gear piece 6 slided, the square tongue 3 that promotes engagement advanced, square tongue 3 advance put in place after; As shown in Figure 3, theftproof lock is in the lock state, at this moment; Hinged safeguard 16 rotates under the effect of torsion spring 15; Safety plate 21 on the safeguard 16 separate with second microswitch 19 and the side's of snapping in tongue 3 on draw-in groove 18, the slip that safety plate 21 can the side's of restriction tongue 3, second microswitch 19 is in off-state; And be designed to oblique tongue owing to touch tongue 4, and when door leaf cuts out, return automatically in the lock shell 1, but the top on its inclined-plane being pressed against on the doorframe, the rear end of touching tongue 4 is pressed and is triggered first microswitch, 5, the first microswitches 5 and be in on-state; This moment, the burglary-resisting system of theftproof lock was in the state of deploying troops on garrison duty; When external force prized door leaf, the spacing between door leaf and doorframe must increase, and the effect that touches the stage clip 20 of tongue 4 its external sleeve must have certain displacement down; And can break away from and break off first microswitch 5; At this moment, burglary-resisting system is just started working, and sends chimes of doom or other measure.When unblanking; The rotation shifting block 13 reverse blocks 12 of unblanking that promote plectrum 8 raisings in the lock core 2; Plane one side is extended the resistance jack-up safeguard of colliding with the projection 17 on safeguard 16 planes and overcome torsion spring 15 in outstanding prominent top 14 16 on the plectrum 8; Safety plate 21 on the safeguard 16 breaks away from the restriction that draw-in groove 18 has been removed the other side's tongue 3, and safety plate 21 presses triggering second microswitch 19, the second microswitches 19 simultaneously and is in on-state again; Plectrum 8 continues the slip side of making tongue 3 with fan-shaped gear piece 6 to be return in the lock shell 1, and theftproof lock is opened, and after door leaf is opened, touches tongue 4 ejection automatically under the effect of stage clip 20, touches the rear end of tongue 4 and separates with first microswitch 5, and first microswitch 5 is in off-state again.Above-described embodiment describes the preferred implementation of the theftproof lock of security door of the present invention; Be not that the design and the scope of inventing limited; Under the prerequisite that does not break away from the present invention program; Various external form modification and improvement that those skilled in the art make technical scheme of the present invention all should fall into the protection domain of the theftproof lock of security door of the present invention.

Claims

1. the theftproof lock of a security door; Comprise the lock shell and be arranged on the lock core in the lock shell, square tongue, shake-up tongue; It is characterized in that rear end first microswitch (5) interior with being fixed on lock shell (1) that touches tongue (4) matches; Side and the fan-shaped gear piece (6) of side's tongue (3) meshes and by its promotion; Fan-shaped gear piece (6) is provided with alignment pin (7); In the arc chute (9) and the deep-slotted chip breaker (10) on the lock shell (1) of alignment pin (7) sliding plug on plectrum (8); Fan-shaped gear piece (6) and plectrum (8) can be slided along the deep-slotted chip breaker (10) on the lock shell (1) simultaneously, between fan-shaped gear piece (6) and plectrum (8) relative slip is arranged also, the two ends of plectrum (8) have latch-down baffle (11) that raises up and the block of unblanking (12) respectively; Latch-down baffle (11) and the block of unblanking (12) match with rotation shifting block (13) in the lock core (2); Plectrum (8) plane one side has extends outstanding prominent top (14), and the prominent projection (17) of pushing up (14) and being hinged on through torsion spring (15) on safeguard (16) plane of locking in the shell (1) matches, and has the safety plate (21) that raises up on the safeguard (16); With the rotation of hinged safeguard (16), safety plate (17) is gone up the draw-in groove (18) that is provided with square tongue (3) respectively and is fixed on interior second microswitch (19) of lock shell (1) and matches.