CN101413359A

CN101413359A - Double-lock core lock head

Info

Publication number: CN101413359A
Application number: CNA200710047069XA
Authority: CN
Inventors: 姚胜宙
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-10-16
Filing date: 2007-10-16
Publication date: 2009-04-22

Abstract

The invention discloses a kind of mechanical anti-theft lock is made up of lock body 1, outer lock core 2, internal cylinder 3 and lock pin group.The lock pin group adopts the self-shield lock pin group of inner core pin 4 with large diameter outer core pin 5, body lock pin 6 compositions of minor diameter; when being subjected to the picking lock chisel by the strong twistlock core of keyhole; with turning round bad is inner core pin 4; protect the outer core pin 5 or the lock body pin 6 that pin outer lock core not to be turned round bad; still can lock control lock and dial 16 outer lock core 2, make the lock locking.On the contact surface of internal cylinder and outer lock core; and be on the lockpin hole circumferential cross-section, the row's of offering cotter way 10 is when being turned round bad inner core pin 4 row's of entering cotter ways 10; make the power of turning round internal cylinder 3 by force can't pass to outer core pin 5 or lock body pin 6, played the effect of outer core pin 5 of protection and lock body pin 6.On outer lock core 2, be provided with the one-directional rotation device,, then can play the effect of outer core pin 5 of unidirectional protection or lock body pin 6 if the direction of turning round by force just in time is the direction that block 14 blocks.The differential warning device of outer lock core in internal cylinder 3,2 of outer lock cores are provided with, because that inner core pin 4 is turned round is bad, interior outer lock core has taken place differential, enters abnormal condition, alarm actuating contact 11 promptly triggers alarm 13 and reports to the police.

Description

Double-lock core lock head

Technical field

The present invention relates to a kind of mechanical anti-theft lock, especially the theftproof lock that constitutes by interior outer lock core.

Background technology

The existing mechanical lock core, the general switching that all cooperates the realization lock with key with the lock pin group, it is widely used with its convenient and practical advantage, but all has the lock pin insufficient strength, lock core is easily reversed by keyhole by force by the lawless person, causes the shortcoming of illegally unblanking.

State Patent Office discloses 200420005046.4 1 kinds of twin-lock core security door devices, and this device has proposed to set up square shaped lock core on original lock core, locks original circular lock core by bayonet lock, thereby reaches the purpose that increases safety, but this lock pin

Lock pin in the device is not strengthened, and still can easier be turned on by force.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of theft preventing method that makes lock locking, and it can work as when being subjected to the picking lock chisel and turning round internal cylinder by force by keyhole, and the lock pin of control outer lock core can not turned round bad, still can lock the outer lock core that control lock is dialled, and lock is locked.For theft preventing method of the present invention, above-mentioned technical problem is to solve like this: the self-shield lock pin group that adopts inner core pin with the large diameter outer core pin and the lock body pin composition of minor diameter; The row's of setting cotter way and differential warning device between interior outer lock core; To outer lock core the one-directional rotation device is set.

Described self-shield lock pin group can be to adopt the different lock pin of diameter, inserts the minor diameter lock pin at the inner core pin-and-hole, and core pin-and-hole and lock body pin-and-hole are inserted the major diameter lock pin outside.

Described self-shield lock pin group can also be that the inner core pin is T type column type pin, cooperates with the minor diameter pin-and-hole of internal cylinder and the major diameter pin-and-hole of outer lock core respectively, is free to slide, and lock body pin and outer core pin adopt the cylinder with large diameter pin.

After having adopted such structure, because inner core pin and outer core pin or lock body pin diameter group mutually are less and power that be subjected to is bigger, so when being subjected to the picking lock chisel and turning round internal cylinder by force by keyhole, what damage is the inner core pin, the lock pin of control outer lock core can not turned round bad, still can lock the outer lock core that control lock is dialled, make the lock locking.

Described row's cotter way can be on the contact surface of internal cylinder and outer lock core, and is on the lockpin hole circumferential cross-section, the row's of offering cotter way.If it is bad that the inner core pin is turned round, to be turned round bad inner core pin and entered row's cotter way, the strong like this power of turning round internal cylinder can't pass to outer core pin or lock body pin, has played outer core pin of protection or lock body pin, makes the lock locking action.

Described one-directional rotation device can be that block is set on lock body, and when being locked in latched position, block is dialled with lock and collided, and makes the outer lock core one-directional rotation.If the direction of turning round by force just in time is the direction that block blocks, then more can protect the outer core pin or the lock body pin of locking outer lock core effectively like this, play the effect of outer core pin of unidirectional protection or lock body pin.

Described differential warning device can be on the Lock cylinder cover that fixes in internal cylinder with outer lock core alarm actuating contact to be installed, and alarm actuating contact triggers alarm equipment alarm when differential when interior outer lock core takes place.If it is differential that interior outer lock core takes place, illustrate the inner core pin turned round bad, the alarm actuating contact triggering alarm equipment alarm in being installed on the outer lock core.

Description of drawings

Be described in further detail below in conjunction with accompanying drawing and embodiments of the present invention:

Fig. 1 is the drawing in side sectional elevation of first kind of embodiment of double-lock core lock head of the present invention.

Fig. 2 is the vertical view of embodiment shown in Figure 1.

Fig. 3 is the sectional view of first kind of embodiment A-A line shown in Figure 1.

Fig. 4 is the sectional view of the another kind of embodiment of A-A line shown in Figure 1.

1. lock bodies among the figure, 2. outer lock core, 3. internal cylinder, 4. inner core pin, 5. outer core pin, 6. lock body pin, 7. snap is 8. locked, and 9. keyhole is 10. arranged cotter way, 11. alarm actuating contacts, 12. Lock cylinder covers, 13. alarm, 14 blocks, 15. lock bodies lid, 16. locks are dialled 17.T type inner core pin.

The specific embodiment

Fig. 1 and the theftproof lock of twin-core as can be known shown in Figure 3 are made up of lock body 1, outer lock core 2, internal cylinder 3 and lock pin group, and the lock pin group is made up of with large diameter outer core pin 5, lock body pin 6 the inner core pin 4 of minor diameter.On the contact surface of internal cylinder 3 and outer lock core 2, and be on the lockpin hole circumferential cross-section, the row's of offering cotter way 10.Lock cylinder cover 12 is fixed on the outer lock core 2, and alarm actuating contact 11 is installed on Lock cylinder cover 12 and internal cylinder 3, and when interior outer lock core takes place when differential, alarm actuating contact 11 triggers alarms 13 and reports to the police.

Fig. 2 is provided with block 14 on lock body lid 15, when being locked in latched position, block 14 is dialled 16 with lock and collided, and makes outer lock core 2 one-directional rotation.

What Fig. 4 provided is the sectional view of the another kind of embodiment of lock pin group, wherein the inner core pin has adopted the straight pin of T font, the big or small shank of T type inner core pin 17 cooperates with the major diameter pin-and-hole of outer lock core 2 and the minor diameter pin-and-hole of internal cylinder 3 respectively, be free to slide, outer core pin 5 and lock body pin 6 adopt the cylinder with large diameter pin.

Inner core pin 4 or 17 is in the lockhole of internal cylinder 3 and outer lock core 2 during use, can drive outer lock core 2 during key, and outer core pin 5 end faces flush rotatable with the contact surface of outer lock core 2 and lock body 1, and the drive lock is dialled 16 and unblanked.

When being subjected to the picking lock chisel and turning round internal cylinder 3 by keyhole the last 9, because inner core pin 4 and outer core pin 5 or lock body pin 6 diameter group mutually are less and power that be subjected to is bigger, so turning round bad is inner core pin 4, the outer core pin 5 or the lock body pin 6 of control outer lock core 2 are not turned round bad, still can lock control lock and dial 16 outer lock core 2, make the lock locking.Impaired inner core pin 4 row's of entering cotter ways 10 of while, the strong like this power of turning round internal cylinder 3 can't pass to outer core pin 5 or lock body pin 6, has played outer core pin 5 of protection or lock body pin 6, makes the lock locking action.In addition if the direction turned round by force just in time is the direction that block 14 blocks, then can on this direction, play the effect of core pin 5 outside the unidirectional protection or lock body pin 6 better.And because that inner core pin 4 is turned round is bad, interior outer lock core has taken place differential, enters abnormal condition, and alarm actuating contact 11 promptly triggers alarm 13 and reports to the police.When the lock pin group adopted another kind of embodiment, turning round bad too was inner core pin 17.

Certainly, this lock pin group can also adopt other structure, can be divided into two sections as internal cylinder, reduces the transmission of power, makes the more difficult bad outer core pin or the lock body pin turned round of power of illegal strong twistlock core.Equally, described one-directional rotation device can be that the lock body block is set on lock body, core block outside on outer lock core, being provided with, and when being locked in latched position, two blocks are collided, and make the outer lock core one-directional rotation.Such conversion all drops within protection scope of the present invention.

Claims

1. the theft preventing method of a theftproof lock is characterized in that: turned round badly with lock pin between interior outer lock core, protect the lock pin between lock body and lock core, make the method for lock locking.

2. theftproof lock that is used for the described theft preventing method of claim 1, form by lock body, outer lock core, internal cylinder and lock pin group, lock is dialled and is located on the outer lock core, it is characterized in that: described lock pin group adopts the inner core pin of minor diameter and the self-shield lock pin group that large diameter outer core pin, body lock pin are formed; In described on the contact surface of outer lock core, and be on the lockpin hole circumferential cross-section, the row's of offering cotter way; The one-directional rotation device is set on the described outer lock core; The differential warning device of outer lock core between described internal cylinder, outer lock core, being provided with.

3. according to the described theftproof lock of claim 2, it is characterized in that: described self-shield lock pin group is to adopt the different lock pin of diameter, inserts the minor diameter lock pin at the internal cylinder pin-and-hole, and lock core pin-and-hole and lock body pin-and-hole are inserted the major diameter lock pin outside.

4. according to the described theftproof lock of claim 2; it is characterized in that: described self-shield lock pin group is that the inner core pin is T type column type pin; cooperate with the minor diameter pin-and-hole of internal cylinder and the major diameter pin-and-hole of outer lock core respectively, be free to slide, body lock pin and outer core pin adopt the cylinder with large diameter pin.

5. according to each described theftproof lock in the claim 2 to 4, it is characterized in that: described one-directional rotation device is that block is set on lock body, and when being locked in latched position, block is dialled with lock and collided, and makes the outer lock core one-directional rotation.