CN2236522Y - Door lock protector - Google Patents

Abstract

The utility model relates to a door lock protector. A connecting bolt assembles a protective cover which assembles the front end of a lock head core of a marble built-in lock, and a lock plate, which is installed on the shell body of a built-in lock, into a whole. The protective cover is composed of an anti-prizing plate, and a rotary anti-drilling cover plate of a lock core with a lock hole, which is arranged in the middle of the anti-prizing plate. The anti-prizing plate and an anti-drilling cover is made of alloy steel heat treatment material. Compared with the prior art, the utility model has the advantages of simple structure, convenient assembly, anti-drilling function, anti-prizing function, good tensile strength, etc. Under the precondition of not altering the built-in lock and the assembly structure of the built-in lock, the utility model is used for the protection of door locks.

Description

A kind of door lock protective device

The utility model relates to a kind of door lock protective device that is used to prevent that built-in lock is drilled, prized.

Existing door lock adopts the pellet shot from a slingshot built-in lock mostly, because the lock core of this lock is to adopt metallic aluminium to be processed into, at its front end parcel one deck copper sheet, its material is softer, anti-drilling, pick-proof poor-performing again.Many thiefs often adopt and bore the burglary of lock core means.For addressing this problem, China's utility model patent ZL91205960.5 manual discloses a kind of door lock protective cover, and this protective cover is equipped with locking closure on the fixed mount of tapered end front portion, between locking closure and tapered end front end rotating lockhole cap and protective sheet are housed.Lockhole cap is processed with slotted eye, at lockhole cap and protective sheet outer rim locating pad is housed, and locking closure is fixedlyed connected with fixed mount.Above-mentioned protective cover is formed complex structure, installs more loaded down with trivial detailsly, and connecting bolt just links to each other with protective cover by lock bottom plate, and integral protection is relatively poor.

The purpose of this utility model is to provide the more door lock protective device of advantages of simple with higher pick-proof, anti-drilling and tensile property of a kind of structure.

The utility model above-mentioned purpose is to realize like this.A kind of door lock protective device; this device comprises and is arranged on the built-in lock core front end; forms protective cover by anti-skid plate and the rotatable lock core drilling-preventing cover plate that is located at this anti-skid plate centre, hole with lock, it is characterized in that said anti-skid plate and the lock protecting plate that is assemblied on the built-in lock housing are fused by connecting bolt.Said apparatus has more higher pick-proof, anti-drilling and resistance to tension owing to adopt anti-cover and lock protecting plate disjunctor protection structure, and its barrier propterty also obviously is better than above-mentioned prior art.In addition, this device assembling mode is very convenient, need not change existing door lock and assembly structure thereof, just can be used for the protection of door lock.

Built-in lock housing protected apron in the above-mentioned door lock protective device is held in the lock housing outside, and its rigging position is preferably disposed on the built-in lock housing near position, dead bolt one end.

The more above-mentioned prior art of the utility model relatively, except that aspect structure design, having obvious difference, and the more advantages of simple that on the assembling mode, seems, and owing to adopted lock protecting plate and this lock protecting plate directly linked to each other with anti-skid plate by connecting bolt, this device pick-proof, tensile property have been increased, simple in structure, easy manufacturing that this device has, be convenient to installation, pick-proof, anti-drilling, advantage such as tensile property is good.

Introduce specific embodiment of the utility model in detail below in conjunction with accompanying drawing.

Fig. 1 is the utility model user mode assembly structure vertical view.

Fig. 2 is the utility model user mode assembly structure lateral view.

By Fig. 1, structure shown in Figure 2 as can be seen; the rotatable anti-drilling cover plate 2 composition protective covers that the said door lock protective device of the utility model comprises the anti-skid plate 1 that is arranged on lock core 3 front ends and is arranged on this anti-skid plate 1 centre, hole with lock pass security door by connecting bolt 4 anti-skid plate 1 and the lock protecting plate 8 and housing 9 base plates that are arranged on close dead bolt one end on the built-in lock housing 9 are fused.Anti-skid plate and anti-drilling cover plate 2 all adopt the alloy steel heat treatment material to make.Dead bolt 6 directly is inserted in the opening of fixed head 5 of doorframe 7.

Claims (2)

1. door lock protective device; this device comprises and is arranged on built-in lock core [3] front end; forms protective cover by anti-skid plate [1] and the rotatable lock core drilling-preventing cover plate [2] that is located at this anti-skid plate [1] centre, hole with lock, it is characterized in that said anti-skid plate [1] and the lock protecting plate [8] that is assemblied on the built-in lock housing [9] are fused by connecting bolt [4].

2. protective device according to claim 1 is characterized in that said lock protecting plate [8] is assemblied in built-in lock housing [9] near dead bolt [6] one ends.

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