Need to use a variety of keys to unlock the lock cylinder and the lock head that does not move

Abstract

The invention discloses a static-lock-cylinder lock head needing to be unlocked through multiple keys jointly. The lock head comprises a first lock head body and a second lock head body. The first lock head body comprises a first lock cylinder, a first sliding piece and a first lock head body shell, wherein the first lock cylinder comprises a first side column pellet, a first side column pellet spring, a first key groove and a first locking side column. An unlocking mechanism and a force bearing point are arranged outside the first sliding piece. The second lock head body comprises a second lock cylinder, a second sliding piece and a second lock head body shell, wherein the second lock cylinder comprises a second side column pellet, a second side column pellet spring, a second key groove and a second locking side column. The static-lock-cylinder lock head needing to be unlocked through the multiple keys jointly is characterized in that the first sliding piece and the second sliding piece are connected into a whole and can slide together, and an unlocking spring capable of driving the first sliding piece and the second sliding piece which are connected into a whole to slide together is arranged outside the first sliding piece and the second sliding piece. The static-lock-cylinder lock head is further characterized in that a lock head set can not be broken through or unlocked gradually through a master key and needs to be unlocked through the multiple keys jointly, and control and management over the lock head are facilitated by two or more persons. The static-lock-cylinder lock head can be widely applied to locks required by safe cases, vault doors, anti-theft doors and containers.

Description

technical field [0001] The invention relates to a lock head in the field of locks, that is, a lock head with a fixed lock core that needs to be unlocked with multiple types of keys. Background technique [0002] In existing safes and treasury doors controlled by multiple locks, the locks used are all locks that are opened successively by their own keys, and all of them are driven by keys to unlock the lock cylinder. Such a combination of locks is easy to be used. The master key breaks and opens one by one, and it can be opened without the presence of other keys. The combination of locks does not have the function of requiring multiple keys to be present at the same time. Although there are many combinations of locks, it cannot effectively prevent theft. effect. Contents of the invention [0003] The present invention can overcome above-mentioned shortcoming, provides a kind of lock head that can't be cracked and opened by master key one by one, and the lock core that must...

AI Technical Summary

Problems solved by technology

[0002] In existing safes and treasury doors controlled by multiple locks, the locks used are all locks that are opened successively by their own keys, and all of them are driven by keys to unlock the lock cylinder. Such a combination of locks is easy to be used. The master key breaks and opens one by one, and it can be opened without the presence of other keys. The combination of locks does not have the function of requiring multiple keys to be present at the same time. Although there are many combinations of locks, it cannot effectively prevent theft. effect

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