Anti-theft mortise door lock core

Abstract

The invention discloses a lock core of a burglar-proof mortice door lock, which contains a lock core body which is composed of the longitudinal bosses on a cylinder and one side of the excircle of the cylinder; the middle of the cylinder is provided with a thumbwheel which is rotatablely matched with the cylinder; the interior of the cylinder is provided with a cylinder, and the longitudinal bosses and the cylinder are both provided with a radial marble hole; the interior of the radial marble hole is provided with a marble, a spring and a bulkhead marble. The long direction of the cylinder and the thumbwheel are both provided with a key hole, and the keys holes of the two are corresponding to each other. The lock core is characterized in that the cylinder is provided with a radial flat hole which is axially parallel with the cylinder and communicated with the key hole, and a spring and a burglar-proof piece are arranged in the radial flat hole. The cylinder inner wall of the lock core body is provided with an arc groove; the external edge of the burglar-proof piece extends into the arc groove under the action of the spring. The insides of the longitudinal bosses at the two ends of the cylinder and the lock core body are all provided with an anti-lock drilling pin. the adoption of the lock core can not only prevent the thief from unlocking illegally, but also prevent the lock core body, the cylinder and the marble in the cylinder from being damaged, thus preventing the purpose of the thief from being achieved. The lock core is applicable to various mortice door locks.

Description

technical field [0001] The invention relates to a lock cylinder. Specifically, it is an anti-theft mortise door lock cylinder with anti-drilling function, which is suitable for various mortise door locks. Background technique [0002] At present, the lock core body and the lock cylinder of the used lock cores on various mortise door locks are all cast with a kind of material, without insurance measures, experienced thieves can also open the lock by using illegal tools. On the other hand, this kind of lock cylinder has no anti-drilling measures. When a thief destroys the lock cylinder with an electric drill, the lock core body, the lock cylinder and the pins in the lock cylinder are easily damaged, thereby making the door lock useless and the thief The purpose is easy to achieve. Contents of the invention [0003] The problem to be solved by the present invention is to provide an anti-theft mortise door lock cylinder. Using this type of lock cylinder can not only prevent ...

AI Technical Summary

Problems solved by technology

[0002] At present, the lock core body and the lock cylinder used in various mortise door locks are all cast from the same material. There is no insurance measure, and experienced thieves can also open the lock with illegal tools.

On the other hand, this kind of lock cylinder has no anti-drilling measures. When a thief destroys the lock cylinder with an electric drill, the lock core body, the lock cylinder and the pins in the lock cylinder are easily damaged, thereby making the door lock useless and the thief easy to achieve

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