Lock cylinder

Abstract

The invention discloses a lock cylinder with triple locking. The lock cylinder includes a lock case, a lock cylinder body, a door, blades, blade doors, a locking bar, marbles and a return spring. Thedoor and the shielding blades are disposed in the front part of a lock cylinder key groove to block a linear angle entering the unlocking position in the key groove. The door and the blade doors are correspondingly in contact with the inclined surface of the locking bar, and push the locking bar to move when moving. The lower edge surface of the locking bar presses on marble through grooves to lock the marbles from upspring; and meanwhile, the lower part of the door enters lock case marble holes, the lower edge surfaces of the blade doors press against the variable cross sections of the adjacent marbles, and the lock cylinder and the marbles are locked to form first locking. According to second locking, the blades are disposed above the marbles, the lower edge surfaces of the blades pressagainst the variable cross sections of the marbles, and the marbles are locked, so that the positions of the marbles are locked below the height required for unlocking, wherein each marble is simultaneously locked by one or more adjacent blades. According to third locking, the first locking and the second locking are unlocked, the marbles bounce, and the normal locking state of the lock cylinder is restored.

Description

[technical field] [0001] The invention relates to a lock cylinder. Mechanical lock with key. [Background technique] [0002] The existing pin lock cylinder and blade lock cylinder have their unlocking parts directly exposed in the key groove of the lock cylinder, which can be easily unlocked with technical unlocking tools; in addition, the existing lock cylinder improvement schemes are all parallel schemes, such as Simultaneously install marble, blade, steel ball, lock on the contact surface of lock cylinder and lock housing respectively, there is no mutual connection and protection between several, its effect just has increased a little technology unblanking time, does not fundamentally solve the problem. In addition, due to the limitation of the movement mode of the pin lock cylinder and the blade lock cylinder, the key quantity of the lock cylinder is not large, and it is easy to unlock with the impact method and the vibration method. [Content of the invention] [000...

AI Technical Summary

Problems solved by technology

[0002] The existing pin lock cylinder and blade lock cylinder have their unlocking parts directly exposed in the key groove of the lock cylinder, which can be easily unlocked with technical unlocking tools; in addition, the existing lock cylinder improvement schemes are all parallel schemes, such as At the same time, the marbles, blades, and steel balls are installed and locked on the contact surface of the lock cylinder and the lock shell respectively. There is no mutual connection and protection between them. The effect is only to increase the technical unlocking time, but it does not fundamentally solve the problem.

In addition, due to the limitation of the movement mode of the pin lock cylinder and the blade lock cylinder, the key quantity of the lock cylinder is not large, and it is easy to unlock with the impact method and the vibration method.

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