Mortise lock capable of achieving switching of automatic locking state and manual locking state

Abstract

A mortise lock with convertible automatic / manual locking state comprises an upper cover (1), a lock housing (2), a panel support seat (3) and a panel (4). The panel (4) is fixedly connected with the lock shell (2) via the panel support seat (3) to form an enclosed shell. An inner door knob component, a handle driving component, an inclined bolt component and a driving structure thereof, a security bolt component and a driving structure thereof, a dead bolt component and a driving structure thereof are provided in the shell. When the dead bolt and the inclined bolt retracts to the unlocked state using the key outside the door, the locked sate can be achieved in the mortise lock without using the key or the inner door knob to drive the dead bolt to extend. When the automatic locked state is not needed, it can be switch to the manually locked state by manipulating the inner door knob to turn a small angle.

Description

technical field [0001] The invention relates to a mortise lock, in particular to a mortise lock capable of realizing the phase conversion between automatic locking and manual locking, and belongs to the technical field of hardware lock products. Background technique [0002] At present, the door locks appearing on the market can be generally divided into two types according to the use function of the handle. One is that the handle is purely used for opening and closing the door. The locking action is completed by the lock body and its key. The door lock with the same structure is more common, but it is inconvenient to use; the other is the mortise lock with the functions of opening the door, closing the door and locking the handle. The rotary handle that drives the lock tongue action is composed. During use, when the locking mechanism of the lock tongue is in the open state, the handle can rotate and swing downward at any angle to realize the door opening action; if the hand...

AI Technical Summary

Problems solved by technology

[0010] However, the existing double-tongue mortise door locks all have the following situation: after the door is closed, the dead tongue assembly is driven by the lock core or the internal knob to reach the locked state, and when the lock core is used outside the door or the handle is retracted from the inside of the door After closing the dead bolt assembly, if you forget to use the key outside the door or the knob inside the door to drive the dead bolt out, the handle outside the door can retract the bolt bolt assembly to open the door; security

Images