Lock head with lock pin capable of idling

Abstract

The present invention discloses a lock head with a lock pith turning idly, and comprises a lock body, a front lock pith and a back lock pith, a locking side column and a sliding block are arranged in the channel of the locking side column of the front lock pith, matched convex and concave channels are arranged on the sliding block and the locking side column and a reset spring for the sliding block is arranged between the sliding block and the end wall of the locking side column channel; a lock pin sliding channel is arranged at the back lock pith and the locking side column of the front lock pith respectively, an end wall is arranged at the lock pin sliding channel which is arranged at the tail of the back lock pith, a lock pin is arranged in the lock pin sliding channel and a lock pin reset spring is arranged between the end walls of the lock pin sliding channel and the lock pin; elasticity of the pin shaft reset spring is larger than that of the sliding block reset spring; at least one of the lock pin or locking side column channel adopts an inclination surface and contacts with the other. A step and a limit gap which are used for stopping and rotting the rear lock pith are arranged at the tail of the lock body. The present invention employs a lock with a lock pith of clutch structure, and effectively prevents unlocking by violation tools.

Description

Technical field [0001] The invention belongs to a mechanical lock, and relates to a lock head with a lock core capable of idling. Background technique [0002] In terms of locks, tumbler locks have always been the most widely used product. Among the existing pinball locks, there is a lock that adopts a lock side post structure in which a locking side post is provided on the lock cylinder and a pin with a V-shaped groove is matched to control the opening and closing of the lock cylinder, which better solves the traditional mechanical pin lock It does not prevent the weakness of technical unlocking and twisting the lock cylinder. For its structure, please refer to the ZL99115581.5 patent document. However, this kind of lock still has the problem that it is difficult to resist destructive and forceful unlocking. If you use an unlocking tool with sufficient strength and forcibly twist the lock core, you can twist off the bolt that fixes the lock head on the door. Summary of the inve...

AI Technical Summary

Problems solved by technology

However, this lock still has the problem of being difficult to resist destructive forceful unlocking

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