Anti-theft spring lock

Abstract

The invention provides an anti-theft spring lock. The lock comprises a packaging shell used for enabling the lock to be fixedly and additionally arranged on a door body, a locking device for achievingswitching of the door body and a door frame between the closing locking state and the unlocking opening state is arranged in the packaging shell, the locking device comprises a lock shell detachablyand fixedly arranged in the door body, a cylindrical lock cylinder coaxially and rotatably arranged in the lock shell in the thickness direction of the door body and a locking execution mechanism which is arranged between the lock shell and the cylindrical lock cylinder, can receive drive of the cylindrical lock cylinder and is used for achieving switching of the door body and the door frame between the closing locking state and the unlocking opening state. The locking device further comprises a multi-contact linkage anti-theft mechanism which is arranged between the cylindrical lock cylinderand the lock shell and used for preventing thefts. The multi-contact linkage anti-theft mechanism is added on a traditional spring lock, the lock technical opening difficulty is greatly increased, andthe lock anti-theft performance is improved.

Description

technical field [0001] The invention relates to a lock, in particular to a tumbler lock. Background technique [0002] In daily life, in order to protect the safety of property, various locks are often used, and the tumbler lock is widely used as the most common lock due to its ease of use. As an important daily necessities, people have put forward higher and higher requirements for the safety and anti-theft performance of the pin lock. The common pin lock provided by the prior art generally consists of the following structure, including a lock cylinder, a lock cylinder shell, a vertical Pins and locking actuators, the lock cylinder is rotatably set inside the lock cylinder shell, taking the most common anti-theft lock with cylindrical pins as an example, after inserting the correct key, the pins of each row are in the correct position, that is, the lower pins are exactly in the The lock cylinder and the upper pin are just in the lock shell, so that the lock core can be rot...

AI Technical Summary

Problems solved by technology

As an important daily necessities, people have put forward higher and higher requirements for the safety and anti-theft performance of the pin lock. The common pin lock provided by the prior art generally consists of the following structure, including a lock cylinder, a lock cylinder shell, a vertical Pins and locking actuators, the lock cylinder is rotatably set inside the lock cylinder shell, taking the most common anti-theft lock with cylindrical pins as an example, after inserting the correct key, the pins of each row are in the correct position, that is, the lower pins are exactly in the The lock cylinder and the upper pin are just in the lock shell, so that the lock core can be rotated relative to the lock shell to unlock the lock; if the key is pulled out or the wrong key is inserted, the pin will be between the lock shell and the lock core so that the lock core cannot be rotated. It is possible to use tools to apply torque to the lock cylinder so that the pins can withstand appropriate transverse shear force, and use the force-sensitive dial to separate the upper and lower pins into the holes of the lock case and lock cylinder one by one, so as to realize the technical opening

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