A mechanical door lock device

Abstract

The invention provides a mechanical door lock device. The device comprises a shell body, a real key hole is formed in the shell body, and the device further comprises a slide cover which can slide upand down relative to the shell body; the shell body is provided with two vertical slide rails, a vertical slideway located between the two vertical slide rails and a positioning hole communicated withthe vertical slideway, vertical flanges slidingly matched with the vertical slide rails at the corresponding sides are arranged at the two sides of the slide cover respectively, and the slide cover is provided with a keyboard area with multiple movable keys; one or more movable keys are positioning keys, the ends, close to the shell body, of the positioning keys are provided with positioning columns which are slidingly matched with the vertical slideway, and annular flanges with cuts are arranged on the positioning holes in the circumference direction; bumps matched with the cuts in shape arearranged on the outer walls of the positioning columns, when the positioning columns are clamped into the positioning holes, the slide cover is fixed and covers the real key hole relative to the position of the shell body, when the positioning columns are separated from the positioning holes, the slide cover can slide up and down along the shell body, and when the slide cover moves to the presetposition, the real key hole is exposed outside.

Description

technical field [0001] The invention relates to the technical field of anti-theft locks, in particular to a mechanical door lock device. Background technique [0002] The utility model with the application number "201620092790.5" discloses a two-stage lock cylinder structure lock, including a lock body and a lock cylinder. The lock cylinder includes a first section lock cylinder and a second section lock cylinder. Keyhole slot and dummy keyhole slot with angle markings on the lock body. When the two-stage lock cylinder structure lock of this structure is in use, the key needs to be inserted into the first section of the lock cylinder, and the angle of the key is twisted to be consistent with the angle of the real keyhole slot, and then the key is further inserted into the real keyhole Then turn the second section of the lock cylinder to open the lock. Since the angle of the key is twisted to be consistent with the angle of the real keyhole groove, it is necessary to know th...

AI Technical Summary

Problems solved by technology

[0007] In view of the deficiencies in the prior art, the object of the present invention is to provide a mechanical door lock device, which can not only improve the anti-theft performance of the lock, but also reduce or avoid the possibility of the problem that the door cannot be opened due to the key hole being blocked.

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