A new type of door lock equipped with an anti-theft device for opening and closing the lock hole

Abstract

The invention provides a novel door lock additionally provided with a lockhole opening-and-closing burglar alarm. The novel door lock additionally provided with the lockhole opening-and-closing burglar alarm comprises a lock plate, a lock cylinder, an inner panel handle, an outer panel handle and an anti-theft device. A lockhole is formed in the lock plate; the lock cylinder is arranged inside the lock plate; the anti-theft device is fixed to the front face of the lock plate through fastening screws and the anti-theft function is achieved through opening and closing of a lockhole channel by shifting sliding; the anti-theft device comprises a main plate, a sub plate and a digital password disk; a first lockhole, an unlocking dial wheel hole and digital password disk fixing holes are formed in the main plate; a second lockhole, an unlocking dial wheel and a password disk locking plate are arranged on the sub plate; and the digital password disk comprises digital plates and a password dial wheel shaft. The novel door lock additionally provided with the lockhole opening-and-closing burglar alarm is simple in structure, high in safety and low in production cost, reduces household expenses, and brings huge economical benefits and social benefits in the practical safety production of markets.

Description

technical field [0001] The invention relates to the field of the lock industry, in particular to a door lock equipped with an anti-theft device for opening and closing lock holes. The anti-theft device in the door lock uses mechanical password program control to identify and achieve the purpose of anti-theft. Background technique [0002] In the lock industry of the existing safety door application, the principle and structure of the old-fashioned pin lock is still widely used. Most of the door locks have only changed their structure type and method. The principle is to insert a key into the lock cylinder And rotate the driving mechanism to realize the switching action. There are several holes radially distributed on the surface of the cylindrical lock core of the pin structure, which correspond to the holes on the lock body, so that the contact surface of the upper pin and the lower pin is exactly in contact with the lock core and the lock body. The faces overlap, so the l...

AI Technical Summary

Problems solved by technology

[0011] The oblique tongue anti-theft door lock disclosed in the above-mentioned first invention patent is mainly to limit and lock the axial direction of the oblique tongue to improve the anti-theft performance; the anti-theft door lock device disclosed in the above-mentioned second invention patent mainly uses the The mechanical lock is combined with the electric control lock, and the lock door controlled by the lock control device is set on the mechanical lock to achieve double security; the above two anti-theft door locks use different methods to control the door lock, but the door lock The lock holes are all in the external state, the door locks are extremely destructive, and there are great hidden dangers to the property safety and life safety of residents

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