Door lock

Abstract

The invention aims at providing a mute door lock to lower noise generated by an auxiliary spring bolt linkage rod and a sliding block. Meanwhile, an auxiliary spring bolt of the lock is provided with a magnet, the auxiliary spring bolt stretches out of a lock seat only when the auxiliary spring bolt is aligned with an auxiliary spring bolt buckle, in addition, assembling is firm, and the completeness of the overall appearance is not damaged. A buffering device is additionally arranged between an auxiliary spring bolt linkage rod abutting part and a sliding block abutting part, the auxiliary spring bolt linkage rod abutting part and the sliding block abutting part are separated, the buffering device absorbs and buffers the impact force from the auxiliary spring bolt linkage rod abutting part and the sliding block abutting part to effectively relieve the impact force and effectively lower noise, abrasion of the auxiliary spring bolt linkage rod and the sliding block is reduced, stability of the auxiliary spring bolt linkage rod and the sliding block is maintained through the auxiliary spring bolt buffering device when the auxiliary spring bolt conducts the magnetic attraction effect, and the service life of the auxiliary spring bolt linkage rod and the sliding block is prolonged. Due to an auxiliary spring bolt blocking piece fixedly assembled on the auxiliary spring bolt, an auxiliary spring bolt magnet can be blocked in an auxiliary spring bolt cavity and cannot move when vibration is brought due to door opening and closing, and therefore exerting of the magnetic attraction force of the auxiliary spring bolt magnet cannot be affected; and in addition, the auxiliary spring bolt blocking piece can be conveniently manufactured to have the model and the color of the style the same as that of the auxiliary spring bolt, damage, caused by auxiliary spring bolt cavity opening due to the auxiliary spring bolt cavity, to the overall appearance uniformity is avoided, and harmony and uniformity of the overall style of the spring bolt are facilitated.

Description

[0001] This application is a divisional application for Chinese invention patent application number: 201510113509.1, application date: March 16, 2015, name: door lock. technical field [0002] The invention relates to a door lock, in particular to a door lock which effectively reduces noise and has an automatic adsorption function. Background technique [0003] The door lock is a hardware designed for space privacy. The basic structure includes a lock body and a lock catch. The lock body is assembled on the door, and the lock catch is assembled on the door frame. A common lock body includes a lock seat, a main bolt, and an auxiliary bolt. The lock seat is statically assembled on the door, and the main and auxiliary bolts are all movably assembled relative to the lock seat. The main and auxiliary lock holes of the lock on the lock match. [0004] In the lock body, the main dead bolt is fixedly assembled with the main dead bolt link, and the auxiliary dead bolt is fixedly ass...

AI Technical Summary

Problems solved by technology

[0005] In the lock body, the main bolt is opened and closed by the key to expand and contract, while the auxiliary bolt is mainly driven by the inner handle or the outer handle to expand and contract. The main bolt first keeps shrinking after the door is opened, and the auxiliary bolt The preferred state is to keep the extended state, that is to say, the extended state of the auxiliary bolt is its normal state. The defect is that when the residents enter and exit the door, the clothes are easily caught and entangled by the auxiliary bolt, so the door will be against the will. Active, and the protruding secondary lock tongue is sharp, there is a risk of scratches

And in the lock body, the auxiliary bolt is fixedly assembled with the auxiliary bolt link, and the lock seat also includes a slider. The slider is driven by the inner handle or the outer handle, and the slider then drives the auxiliary bolt link , and then drive the auxiliary bolt, so the auxiliary bolt, the auxiliary bolt linkage, and the slider are movable relative to the lock seat as a whole, but at the same time, the auxiliary bolt, the auxiliary bolt linkage is also movable relative to the slider. Assembling, there will be a displacement between the auxiliary lock tongue and the auxiliary lock tongue link as a whole and the slider

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