Invisible mechanical pin tumbler lock

Abstract

The invention provides an invisible mechanical pin tumbler lock. The invisible mechanical pin tumbler lock is composed of a lock body, a first lock cylinder, a second lock cylinder, a spring pin tumbler group, an anti-theft panel and a key, wherein the first lock cylinder, the second lock cylinder and the spring pin tumbler group are mounted in the lock body in a matching manner; the anti-theft panel is used for blocking the first lock cylinder and the second lock cylinder in lock cylinder holes; only one part of a front end face of the first lock cylinder can be observed through a key hole in the anti-theft panel; the invisible mechanical pin tumbler lock has the beneficial effects that under a lock state, a spring pin tumbler clamps the second lock cylinder to lock the second lock cylinder; the second lock cylinder and the spring pin tumbler are completely shielded by the anti-theft panel and are not exposed, so that technical unlocking and a master key can be effectively prevented and the anti-theft performance is high; the first lock cylinder is matched with the key which is specifically inserted, and can rotate independently; only when a blade of the key rotates to the position of the spring pin tumbler along with the first lock cylinder in the lock body, a code pin tumbler groove of the key blade can trigger the spring pin tumbler to unlock the second lock cylinder, so that the confidentiality is high; the whole structure is relatively simple, the machining is convenient and the economic cost is low.

Description

technical field [0001] The invention belongs to the field of lock equipment, and in particular relates to a structure of a mechanical lock cylinder with invisible pins. Background technique [0002] The tumbler lock cylinder is the most common lock cylinder structure, the construction principle is simple, and the production cost is low, but most of the existing common tumbler locks are very easy to be broken by technical unlocking. The biggest reason for the poor anti-theft ability of ordinary tumbler locks is that the key hole is exposed, and the pins of the lock cylinder can be seen from the key hole, and the pins can be touched by technical unlocking. The unlocking principle of the ordinary pin lock is to squeeze the corresponding spring pins stuck in the key hole of the lock cylinder out of the key hole of the lock cylinder through the key blade, so that each spring pin reaches the designated position, unlock the lock cylinder with the key inserted, and then turn the loc...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the invisible pin mechanical lock of the present invention is to solve the problem that the pins of ordinary pin locks are exposed and easy to be broken by technical unlocking, and to provide a kind of invisible pin mechanical lock. Seen from the lock hole, the structure is simple, the anti-theft performance is high, and the technical unlocking is blocked from the structure of the lock body

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