Mortise door lock

Abstract

The invention relates to a mortise door lock. The mortise door lock comprises an inner handle component, an outer handle component and a latch bolt component; the inner handle component comprises an inner handle fixing seat, an inner handle mounted on the inner handle fixing seat and an inner lock cylinder; the outer handle component comprises an outer handle fixing seat, an outer handle mounted on the outer handle fixing seat and an outer lock cylinder; the inner handle and the outer handle are synchronously and rotationally connected through a first transmission rod penetrating through the latch bolt component and are in driving connection with the latch bolt component; and meanwhile, the inner lock cylinder and the inner handle can be in transmission connection in a locking and unlocking controlled manner, and the outer lock cylinder and the outer handle can be in transmission connection in a locking and unlocking controlled manner, so that locking and unlocking of the mortise doorlock can be realized. Locking control can be performed on the inner handle and the outer handle through a locking transmission component, so that the locking anti-theft function can be realized, and the mortise door lock is convenient to use and operate; meanwhile, a dead bolt component of a traditional mortise door lock is omitted, so that the structure is simplified obviously, the production cost is greatly reduced, the assembly and mounting efficiency is improved, the market competitiveness is very high, and market development, popularization and application are facilitated.

Description

technical field [0001] The invention belongs to the technical field of locks, in particular to a mortise door lock. Background technique [0002] At present, the mortise door locks (such as: handle locks) on the market include an inner handle assembly, an outer handle assembly and a lock body, and the lock body is provided with an oblique tongue assembly, a square tongue assembly and a safety tongue assembly, and is composed of Different structures control the opening and locking, specifically: the oblique tongue assembly is controlled by the inner handle assembly and the outer handle group to open, the square tongue assembly is controlled by the key to control the locking and unlocking of the inner lock cylinder and the outer lock cylinder, and the safety tongue assembly is controlled by the insurance Button control is very cumbersome to use and operate, and the structure is very complicated, the assembly and installation costs are time-consuming, and the production cost is...

AI Technical Summary

Problems solved by technology

[0002] At present, the mortise door locks (such as: handle locks) on the market include an inner handle assembly, an outer handle assembly and a lock body, and the lock body is provided with an oblique tongue assembly, a square tongue assembly and a safety tongue assembly, and is composed of Different structures control the opening and locking, specifically: the oblique tongue assembly is controlled by the inner handle assembly and the outer handle group to open, the square tongue assembly is controlled by the key to control the locking and unlocking of the inner lock cylinder and the outer lock cylinder, and the safety tongue assembly is controlled by the insurance Button control, very cumbersome to use and operate, and the structure is very complicated, time-consuming assembly and installation costs, high production costs

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