Three-way five-bolt anti-theft door lock

Abstract

The present invention discloses a three-way five-bolt anti-theft door lock, which resolves the bug of open and close of existing three-way five-bolt anti-theft door lock. The technique is adding slant bolt shifting housing assembly, arranging slant bolt shifting piece, gear shifting piece and cultch piece on the periphery surface, thus fast open and lock can be achieved with inner hand; arranging sliding pin on the slant bolt shifting housing base, which can be clamped connection into a hole on the shifting housing core side wall, arranging sliding push piece on outer end of the sliding pin, thus fast open and lock can be achieved with outer hand, and the outer hand can not open the door after the main lock bolt is locked; arranging self locking piece on the connection plate of the main lock bolt, which has long hole and location pit, and arranging locking post corresponding to the long hole position on the side surface of the outer plate of the lock, thus the self locking operation can be achieved after the main lock bolt is locked, and inner hand can not open the door after the anti-theft door is locked, which increases safety factor of the anti-theft door lock. The three-way five-bolt anti-theft door lock of the invention can be widely applied for various anti-theft door.

Description

technical field [0001] The invention relates to an anti-theft door lock, in particular to a three-way five-tongue anti-theft door lock. Background technique [0002] As an indispensable tool in people's ordinary economic life, locks are constantly being perfected for their anti-theft performance. The dead bolt of existing anti-theft lock is no longer unidirectional, and has developed into three directions and five tongues. Its deadbolt comprises: oblique bolt, main locking bolt, safety tongue and the sliding bolt that is connected on the connecting plate of main locking bolt, and described sliding bolt is respectively one above and below the lock body, and the direction is perpendicular to main locking bolt. The security performance of the anti-theft lock designed in this way has been greatly improved. Although the anti-theft performance of locks is constantly improved, there are often news that some indoor property is stolen to appear in the newspapers. The reason is not...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the defect that the main bolt of the existing anti-theft lock is troublesome to open and lock, a technical problem to be solved by the present invention is to provide a new type of anti-theft door lock, which can use the inner handle to realize the rapid opening and locking of the anti-theft lock , and the outer handle cannot open the door without a key, which has the advantages of simple, convenient and fast operation

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