CN2477756Y - Anti-rotating safety device of lock - Google Patents

Abstract

The utility model discloses a lock body anti-rotation safety device for a three-security door lock, and is characterized in that a lock body gripping plate is fixed a the door plate. Part of the margin of the lock body gripping plate stretches out of the lock body, and is provided with a mounting hole used to fix the lock body gripping plate on the door plate via bolts. The utility model prevents the rotation of the lock body on the door plate, and achieves the purpose of safety protection.

Description

Lock body anti-rotation safety device

The utility model relates to door lock, specifically a kind of lock body anti-rotation safety device that is applicable to three insurance locks.

Three traditional insurance locks only consider that when design the pellet shot from a slingshot logarithm can not be opened with key cover in the increase lock, have ignored the lock body clamping plate and only have been fixed on the lock body, do not fix with door-plate, can rotate together when causing lock body to be opened, and lose the actual safety effect of locking.The critical defect of Here it is traditional three insurance locks.

The purpose of this utility model is in order to solve the deficiency that the above-mentioned background technology exists, to propose a kind of lock body anti-rotation safety device, the lock body clamping plate being fixed together lock body and door-plate.

For achieving the above object, the utility model adopts a kind of lock body anti-rotation safety device, its special character be described lock body clamping plate edge some stretch out outside the lock body, have fixing hole on it.

The utility model is on the basis of traditional three insurance locks; suitably widen lengthening lock body clamping plate, and offer fixing hole, make it also self to be fixed on the door-plate on the fixing basis of lock body in lock body clamping plate edge; prevent that lock body from rotating on door-plate, played the safeguard protection effect.

Describe the utility model in detail below in conjunction with the accompanying drawing illustrated embodiment.

Fig. 1 is the utility model scheme of installation.

Fig. 2 is traditional three insurance lock lock body clamping plate schematic diagrames.

Fig. 3 is a kind of lock body clamping plate of the utility model schematic diagrames.

Fig. 4 is the another kind of lock body clamping plate of the utility model schematic diagrames.

Three insurance locks generally are made up of lock body 1, lock body clamping plate 2, dead bolt 3 and key and lock box 4, referring to Fig. 1, Fig. 2.The utility model only improves wherein lock body clamping plate 2.A kind of scheme is with former lock body clamping plate both sides lengthening, and it is stretched out outside the lock body, separates fixing hole 5 in the portion of stretching out again, and screw can be fixed on lock body clamping plate 2 on the door-plate 6, referring to Fig. 3 by this fixing hole 5 during installation.Another kind of scheme is that former lock body clamping plate are widened on both sides up and down, and it is stretched out outside the lock body, separates fixing hole 5 in the portion of stretching out again, and screw can be fixed on lock body clamping plate 2 on the door-plate 6, referring to Fig. 4 by this fixing hole 5 during installation.

In sum, the utility model is not only novel but also practical, and the design of its innovation really can make the lock body clamping plate that lock body and door-plate are fixed together, and has played the safeguard protection effect.Compare under the situation that cost increases hardly with traditional three insurance locks, security performance is greatly improved, and has substantial characteristics and progress.

Claims (1)

1, a kind of lock body anti-rotation safety device, some stretches out outside the lock body to it is characterized in that described lock body clamping plate edge, has fixing hole on it.

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