Combined antitheft lock cylinder assembled by inner and outer locks

Abstract

The invention discloses a combined antitheft lock cylinder assembled by inner and outer locks. The combined antitheft lock cylinder comprises an outer lock cylinder and an inner lock cylinder, wherein the inner lock cylinder adopts a side column lock structure; a first side column bolt on the outer circle of the inner lock cylinder is matched with a first side column bolt groove on the inner circle of the outer lock cylinder; the inner lock cylinder is provided with a second elastic strip which is matched with an outer lock cylinder elastic strip on the outer lock cylinder; an inner lock cylinder antitheft locking mechanism is arranged on the inner lock cylinder; a second antitheft locking mechanism is arranged on the outer lock cylinder. The side column lock antitheft locking mechanism comprises a side column lock cylinder, wherein a lantern ring is arranged on the side column lock cylinder; a third marble hole is formed in the side column lock cylinder in the radial direction; locking blind holes are distributed on two sides of the third marble hole; a through hole is formed in the lantern ring; a third marble assembly passes through the through hole and falls into the third marble hole. According to the combined antitheft lock cylinder assembled by inner and outer locks, a dual antitheft locking mechanism is arranged, so that when unlocking is carried out under the action of external forces, the lock cylinder is locked and cannot be unlocked through any technology. Three groups of marbles are designed, so that the mutual unlocking rate is extremely low and practically negligible.

Description

Technical field [0001] The invention relates to an anti-theft lock core. Background technique [0002] A lock is an appliance that has a closing function, which includes a lock, a key and its accessories. Generally, a lock can only be opened with a unique key. [0003] There are many types of locks currently sold in the market, and the side post lock is a mainstream lock structure nowadays, which occupies a dominant position in the market. [0004] The basic structure of the side column lock is: the first side column tumbler is set on the lock cylinder, and the inner wall of the lock sleeve is slotted. The first side column tumbler can extend from the inside of the lock cylinder under the action of the spring and the pin gap. Or shrink, when the first side column tumbler extends, it will be stuck between the lock core and the outer sleeve, so that the lock core cannot rotate in the lock sleeve, and the lock is locked; when the first side column tumbler shrinks to When the lock cyli...

AI Technical Summary

Problems solved by technology

But in actual use, it is still unavoidable to avoid the research of technical lock unlocking personnel to be able to open the lock technology.

The safety of lock users cannot be better guaranteed

Images