CN201351389Y

CN201351389Y - Anti-theft lock core

Info

Publication number: CN201351389Y
Application number: CNU2009200677435U
Authority: CN
Inventors: 孙建华; 沈其衡
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-02-16
Filing date: 2009-02-16
Publication date: 2009-11-25
Anticipated expiration: 2019-02-16

Abstract

The utility model discloses an anti-theft lock core which comprises a key, a lock body, a lock core, a lock body latch, a spring and a lock core latch; a concave groove or a plurality of relock concave grooves are arranged in the lock body; a row or a plurality of rows of relock latch holes are arranged in the lock body; relock latches and relock springs are mounted in the relock latch holes; when technical unlocking method is adopted, and the lock core rotates to certain angle, the lock body latch returns to the relock concave grooves or the lock core latch hole and is clamped between the lock body and the lock core so that the lock core cannot rotate continuously. The relock device can be applicable to various mechanical latch locks; the technical unlocking methods need to be used repeatedly for times to break through the defenses formed by the relock device so that the time for technical unlocking method is prolonged by times, the difficulty of technical unlocking method is increased so as to improve the anti-theft performance of lock core.

Description

Anti-theft lock

Technical field

The utility model belongs to the mechanical lock field, relates to a kind of anti-theft lock.

Background technology

The mechanical lock majority that uses is made up of lock body, lock core, pellet shot from a slingshot, spring and key at present, under blocking, pellet shot from a slingshot in the lock body is stuck between lock body and the lock core, play the effect of locking, after inserting key, the hole that the different tooth of height or the depth are different is with after lock core marble different in size contacts on the key, with the pellet shot from a slingshot jack-up on the lock core and make its other end concordant with the lock core cylindrical, and the pellet shot from a slingshot on the promotion lock body returns from lock core, screw key again, and lock promptly is unlocked.Though the structure of atom lock core has difference, but principle then is the same, under blocking, lock spring or clamp one end are stuck in the interior groove of lock body, the other end is withstood by lock core marble, lock core can't be rotated, after inserting key, pellet shot from a slingshot on the lock core is by jack-up, the groove of those pellet shot from a slingshot waists has been alignd with lock spring or clamp, this moment, one end of screw key extruding lock spring or clamp entered in the groove of lock core marble waist, withdrawed from the promptly rotatable purpose that reaches unlatching of lock core the groove of the other end in lock body.But weak point is: when theft with the technical unlocking means as one by one lock core marble is instigateeed with special tools such as steel hooks concordant after, just can be in the short period of time will lock unlatching.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, and provide a kind of anti-theft lock of simple in structure, handling ease, only needing increases by one group or some groups locking device again at existing various mechanical anti-theft lock cores, the time of prolongation technical unlocking at double, increase difficulty of technical opening, thereby improved the theftproof performance of lock core, in order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:

The utility model comprises key, lock core, lock body, lock spring, lock core marble, spring, is provided with one or some in the described lock body and locks groove again, or lock body is provided with a row or plurality of rows is locked the pellet shot from a slingshot hole again, in be equipped with and lock pellet shot from a slingshot again and lock spring again.

The utility model anti-theft lock has following beneficial effect compared with prior art: 1, theftproof performance significantly improves; 2, the few fault rate of simple in structure, component is low; 3, common component are easy to processing, for example: the lock core of atomic structure need not increase any part, only need interior circle at lock body to increase together or several is locked groove again and gets final product, the lock core of the billiards structure of other types also only needs to process a row on lock body or plurality of rows is locked the pellet shot from a slingshot hole again, reinstalls to lock pellet shot from a slingshot again and lock spring again to get final product.

Description of drawings

Fig. 1 is that the utility model anti-theft lock is used for the normal schematic diagram of opening of atomic structure lock core;

Fig. 2 is that the utility model anti-theft lock is used for the schematic diagram that the atomic structure lock core is pinned again after by pirate of the open again;

Fig. 3 is that the utility model anti-theft lock is used for the normal schematic diagram of opening of common spring structured lock core;

Fig. 4 is that the utility model anti-theft lock is used for the schematic diagram that the common spring structured lock core is pinned again after by pirate of the open again.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Anti-theft lock described in the utility model comprises: key 1, lock body 2, lock core 3, groove 4, again lock groove 5, lock spring 6, spring 7, lock core marble 8, pellet shot from a slingshot hole 9, again lock pellet shot from a slingshot hole 10, again lock pellet shot from a slingshot 11, lock spring 12 again.

In Fig. 1, be provided with a groove 4 and five in the hole of the lock body 2 of atomic structure and lock groove 5 again, during blocking, lock spring 6 one ends are absorbed in the groove 4, the other end withstands lock core marble 8, because lock spring 6 can not withdraw from from groove 4, but is stuck between lock body 2 and the lock core 3, so thereby lock core 3 can not rotate the purpose that reaches locking; During unlatching, after inserting original key 1, the different tooth of height on the key 1 is with lock core marble 8 jack-up and the groove of its waist is alignd with lock spring 6, this moment, screw key 1 drive lock core, 3 rotations and extruding lock spring 6 were retracted into from groove 4 in the pellet shot from a slingshot hole 9 of lock core 3, after making lock spring 6 lose the effect of blocking lock core 3, lock promptly has been unlocked;

In Fig. 2, use the technical unlocking method, for example reversing on the other hand lock core 3 instigates lock core marble 8 with after lock spring 6 aligns with instruments such as steel hooks on the other hand one by one, reverse lock core 3 and push in lock spring 6 is retracted into lock core 3 from groove 4 the pellet shot from a slingshot hole 9, lock core 3 is promptly rotatable, but after lock core 3 turns an angle, one end of lock spring 6 can be absorbed in the groove of lock again 5 that is provided with in the lock body 2 again, under the effect of spring 7, one end of lock spring 6 comes back to be locked in the groove 5 again, the other end is withdrawed from from the groove of lock core marble 8 waists, 8 of lock core marbles fall again under the pressure of spring 7 and withstand lock spring 6, lock spring 6 is stuck in locking once more between lock body 2 and the lock core 3 once more, need so repeatedly finally pirate of the open of technical opening, become several times ground to prolong the time of technical unlocking, make pirate of the open be difficult to succeed;

In Fig. 3, on the lock body 2 of common spring structure, increase a row or plurality of rows and lock pellet shot from a slingshot hole 10 again, during blocking, lock spring 6 enters the pellet shot from a slingshot hole of lock core under the pressure of spring 7

Lock core 3 is stuck between lock body 2 and the lock core 3, so thereby can not rotate the purpose that reaches locking.During unlatching, insert original key 1 after, the different tooth of the height on the key 1 is with lock core marble 8 jack-up and make its top concordant with the cylindrical of lock core 3, screw key 1 can drive lock core 3 rotations and will lock and open this moment;

In Fig. 4, instigate lock core marble 8 with after lock core 3 cylindricals are concordant one by one with the technical unlocking method identical with Fig. 2, can reverse lock core 3 rotates, but when lock core 3 rotated certain angle run into lock pellet shot from a slingshot hole 10 again after, because lock core marble 8 is not withstood by key bit and is in free state, so lock pellet shot from a slingshot 11 enters lock core 3 once more under the pressure of locking spring 12 again pellet shot from a slingshot hole again

Be stuck between lock body 2 and the lock core 3, lock core 3 can't be rotated further, wanting pirate of the open must instigate lock core marble 8 in repeated multiple times ground, has increased very big difficulty to pirate of the open.

Claims

1, a kind of anti-theft lock, comprise key (1), lock body (2), lock core (3), lock spring (6), spring (7), lock core marble (8), it is characterized in that, be provided with one or some in the described lock body (2) and lock again that groove (5) or lock body (2) are provided with a row or plurality of rows is locked pellet shot from a slingshot hole (10) again, lock again to be equipped with in the pellet shot from a slingshot hole (10) and lock pellet shot from a slingshot (11) again and lock spring (12) again.