Built-in lock security door

Abstract

The invention provides a dormant-lock type anti-theft door improving the anti-theft performance through a dormant lock. The lock is connected to the inner side of a door plate, a through hole flushed with the lock is formed in the door plate, a left end of a protecting cover is connected to the lock, and the right end of the protecting cover covers the through hole of the door plate. A lock bolt and a lock cylinder are arranged on the left and right of the lock, the lock bolt is in a longitudinal rectangular frame structure, a rack is connected to the upper end surface of the lower edge of the lock bolt, an elongated round lock hole is formed in the right edge of the lock bolt, and the left end of the lock cylinder is in a flat cylindrical structure matching with the lock hole. A shaft hole penetrating the door plate and the lock is formed in the door plate, and an opening shaft is inserted into the the shaft hole to allow the gear of the opening shaft to engage with the rack of the lock bolt. A key is held by one hand and is inserted into the lock cylinder through the through hole, the bolt cylinder rotates to allow the lock head and lock hole to be aligned in angle, the opening shaft is capable of driving the lock bolt to move transversely through the gear and the rack. When the lock head exits the lock hole, the lock cylinder rotates to stagger the lock head and the lock hole in angle so as to lock the lock bolt.

Description

technical field [0001] The invention relates to an anti-theft door, in particular to a built-in lock type anti-theft door which can improve the anti-theft capability of the anti-theft door by concealing the door lock of the anti-theft door. Background technique [0002] At present, the keyholes of the door locks of the known anti-theft doors are all directly arranged on the outer side of the door panel. Although this arrangement is convenient for people to open the anti-theft door, it is also convenient for lawless personnel to operate the unlocking tool comfortably with both hands to carry out security operations on the anti-theft door. Illegal opening. Contents of the invention [0003] In order to overcome the deficiency that the lock setting method of the existing security door is convenient for illegal opening, the present invention provides a built-in lock type security door, which can pass through the hidden lock of the security door so that illegal personnel cannot...

AI Technical Summary

Problems solved by technology

[0002] At present, the keyholes of the door locks of the known anti-theft doors are all directly arranged on the outer side of the door panel. Although this arrangement is convenient for people to open the anti-theft door, it is also convenient for lawless personnel to operate the unlocking tool comfortably with both hands to carry out security operations on the anti-theft door. illegal opening

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