Improved protection device of mortise door lock core

Abstract

The invention discloses an improved protection device of a mortise door lock core, and the improved protection device comprises an outer protection cover which is installed on an outer panel of an antitheft door and covering the mortise door lock core, wherein the outer protection cover is provided with a projection which is matched with the end part of the mortise door lock core, the projection is provided with a rotary sheet, and the improved protection device also comprises a fixed plate which is arranged inside the outer panel of the antitheft door and can be sleeved on the mortise door lock core, and the outer protection cover is fixed on the fixed plate through a rivet or a screw penetrating through the outer panel of the antitheft door. Since the fixed plate which can be sleeved on the mortise door lock core is arranged inside the panel of the antitheft door, and the outer protection cover is fixedly connected with the fixed plate through the rivet or the screw so as to be integrated with the outer panel, convenience in installation can be realized, the lock installing time can be reduced, the explosion-proof performance of the outer protection cover is greatly enhanced, difficulty in prying can be realized, the protection performance for protecting the lock core can be improved, and the lock core can be effectively protected.

Description

technical field [0001] The invention belongs to locks, in particular to an improved protection device for a lock core of a mortise door lock. Background technique [0002] Anti-theft doors generally adopt mortise door lock cylinders. In order to protect the mortise door lock cylinders, protective devices are often installed on the inner and outer panels of anti-theft doors. The protective device of existing mortise door lock lock cylinder is as figure 1 , figure 2 Shown, comprise the inner and outer protective covers 2,3 that are installed on the anti-theft door inside and outside panels 1,1 ' with the mortise door lock lock core 4 covered, and the anti-drilling sheet 6 on the outer protective cover 3 is provided with There is perforation 601 corresponding to the lock hole on the mortise door lock lock core 4, because be to be connected and fixed on the security door with inner protective cover 2 and outer protective cover 3 with screw 5 in the anti-theft door, outer prot...

AI Technical Summary

Problems solved by technology

The protective device of existing mortise door lock lock cylinder is as figure 1 , figure 2 Shown, comprise the inner and outer protective covers 2,3 that are installed on the anti-theft door inside and outside panels 1,1 ' with the mortise door lock lock core 4 covered, and the anti-drilling sheet 6 on the outer protective cover 3 is provided with There is perforation 601 corresponding to the lock hole on the mortise door lock lock core 4, because be to be connected and fixed on the security door with inner protective cover 2 and outer protective cover 3 with screw 5 in the anti-theft door, outer protective cover 3 is very It is easy to be pried open to destroy the door lock, so the explosion-proof performance of this protection device is poor

Images