CN2216122Y - Theft-proof lock - Google Patents

Abstract

The utility model relates to a lock. A plurality of lock hook wedges are added on an ordinary lock structure. The inserting depth of lock hooks is determined according to requirements. The utility model has the advantages of simple structure, low cost, good theftproof performance, etc. The original lock factories can produce without adding devices.

Description

Theft-proof lock

The utility model relates to a kind of lock, particularly safe-guard door lock.

At present, the common door lock of selling on the market, after the pinning, central space is big, some new construction door locks and patent application (as application number 921002041), just change the connected mode of lock core structure or itself and lock housing, utilize hard device such as reinforcing bar to pass the space to stealer, will lock prize bad, the way of prying open, effect without limits, restriction utilizes MASTERKRY class instrument to join the way of unblanking only.

Task of the present utility model provides a kind of theftproof lock, and it can suitably adjust the degree of depth that latch hook is pressed into lock housing according to locked object spare, prevents to utilize latch hook space picking lock, and can add on the basis of general lock, and technology is simple.

For solving above-mentioned task, solution of the present utility model is: on the basis of common lock structure, and two above wedge-shaped slots of the inboard processing of latch hook, corresponding with it shrinkage pool is a deep hole on the lock housing, latch hook can according to circumstances be grasped insertion depth.

Owing to adopted said structure, lock is when being in locking state, and other thing is difficult to insert the latch hook central space, reaches antitheft purpose, and generally locks son and can change a social system, and Lock Factory does not need increase equipment just can produce.Production technology is simple, and cost is low.

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

Figure one is a sectional view of the present utility model

On the common lock architecture basics, 3. latch hook adds above wedge-shaped slot on two, lock housing 1. go up with it corresponding shrinkage pool be deep hole 6., 3. latch hook can grasp the pressure degree of depth as required, 4. 5. wedge press the wedge groove by spring, when unblanking, as long as insert key, rotational lock core 2., 3. latch hook can normally eject.

Claims (2)

1, a kind of antitheft lock housing, lock core, latch hook of comprising is characterized in that having on the latch hook two above wedge-shaped slots, and corresponding lock housing upper concave hole is a deep hole.

2, theftproof lock as claimed in claim 1, its feature will have a groove in latch hook arc portion.

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