Axially-sealed-type security latch lock

Abstract

The invention discloses an axially-sealed-type security tapered end drawback lock which comprises a shell (1), an inner tapered end (3), an outer tapered end (2) which is installed inside an outer tapered end installing hole (5011) in a door body (5), a cover plate (6) which is installed at the inner surface (504) of the door body (5), and a panel (7) which is connected with the shell (1) and is installed on a side surface (502) of the door body (5), wherein the inner tapered end (3) is installed in a first tapered end installing hole (14) of the cover plate (6) and a second tapered end installing hole (5041) (which is matched with the first tapered end installing hole (14)) of the door body (5); the outer tapered end (2) and the inner tapered end (3) are both provided with spirally arranged tapered end holes (13); and a key (12) is provided with concave holes (1203) which are spirally arranged in a matching manner.

Description

technical field [0001] The invention relates to the technical field of locks, in particular to an axially closed safety tumbler door lock. Background technique [0002] The door lock of the prior art generally includes a housing, an outer lock head and an inner lock head. The housing is provided with a deadbolt bar, a lock cylinder connecting plate and an ornament capable of controlling the movement of the lock cylinder connecting plate. One end of the deadbolt bar is connected with a Lock tongue, the other end of the lock tongue rod is connected with a slider, which can be controlled by pushing the slider to control the expansion and contraction of the lock tongue. One end of the lock cylinder connecting plate is connected with a lock cylinder. The column is telescopic, the outer surface of the door body is provided with an outer lock head installation hole, the outer lock head is installed in the outer lock head installation hole, the key hole of the outer lock head is loc...

AI Technical Summary

Problems solved by technology

[0004] This kind of door lock, because the length of the lock head is relatively long, the volume of the lock head is relatively large, so the housing can only be installed on the inner surface of the door body, so that the housing protrudes from the inner surface of the door body, making the door lock The installation is not firm, and it is easy to be destroyed by human beings. It is easy for illegal entry into the house by destroying the door lock, and the inner lock cylinder structure of the inner lock head is easy to be seen by people who enter the room, and it is easy for criminals to take the opportunity to understand the inside. The internal structure of the lock cylinder allows criminals to open the door lock to steal property, which makes the door lock less safe, and because the shell protrudes from the door body, it is easy for people to bump into it, especially for children. It hurts the head, and when people enter and exit the door, the slider installed on the housing is easy to catch people's clothes, which brings inconvenience to people

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