Violence destroy preventing knob lock cylinder

Abstract

The invention discloses a violence destroy preventing knob lock cylinder. The violence destroy preventing knob lock cylinder comprises an inner lock head body, an outer lock head body and an unlockingpoking wheel; the inner lock head body and the outer lock head body are connected through a connecting block therebetween; an outer lock liner is arranged in the outer lock head body; an inner lock liner is arranged in the inner lock head body; the unlocking poking wheel is clamped between an inner side end of the outer lock liner and an inner side end of the inner lock liner; the axial inner side end of the inner lock liner is in locking connection with the unlocking poking wheel; a knob is fixedly arranged at the axial outer side end of the inner lock liner; and the knob inner lock liner istwisted to rotate to drive rotation of the unlocking poking wheel to realize unlocking. Under the condition of violence destroy, the lock cylinder is prevented from directly acting on a lock body after destroy through a reasonable connecting structure; and through a clutch self-locking structure, after the external of the lock cylinder is damaged, a poking wheel locks an inner clutch and links with the inner lock head body through a clutch. Meanwhile, a knob is the same in normal use method; and as an unlocking button is provided, when the external of the lock cylinder is damaged, the unlocking button is pressed down.

Description

technical field [0001] The invention relates to a lockset, in particular to an anti-violent damage knob lock cylinder. Background technique [0002] At present, the market generally uses a copper integrated lock cylinder, which is easy to break from the screw hole when it is damaged. According to the needs of the market and the demand for anti-vandalism, two kinds of anti-violent damage lock cylinders have appeared. One kind of lock cylinder has adopted the method of adding connecting rods, but it can also be destroyed when protecting some special destruction tools. In addition to adopting the connecting rod, another kind of lock core has an easy-break groove, so that the lock core can break at the easy-break groove, and it will become difficult to use tools after the easy-break groove is broken. But in reality, there are often 2 or 3 marbles left after the breakable groove is broken, which is easy to be opened by technology. Even if you don't use technology to open it, ma...

AI Technical Summary

Problems solved by technology

The publication number is CN104196333A, which discloses the technology of "a lock cylinder mechanism capable of preventing violent destruction". The connection between them is relatively thin. In professional destroying tools, it is easy to directly act on the lock body through the gap between the dial and the lock body to open the lock body.

Images