Mechanical mute lock for room door

Abstract

The invention relates to a mechanical mute lock for a room door. The mechanical mute lock comprises a movable lock body, a fixed lock body and two door handles, wherein the movable lock body comprisesa movable lock body housing, a pressure spring I, a spring baffle, a spring bolt and a movable lock body baffle; the fixed lock body comprises a fixed lock body baffle, a fixed lock body housing anda groove inner baffle; each door handle comprises a handle housing, a pull handle and a swing rocker; and the middle of each swing rocker is movably mounted on the corresponding handle housing througha pin shaft. In the use state, one end of each swing rocker is positioned in a shifting piece push groove of the spring bolt. According to the mechanical mute lock, the rockers are adopted for opening and closing the door handles, the swing angle of the rockers is limited through movement of the spring bolt, the rockers are not limited by the springs, and therefore no noise is generated during swing; and meanwhile, the spring bolt is automatically popped out in a baffle stretching manner, the spring bolt slowly moves under the buffering effect of spring force after making contact with the groove inner baffle, no large sound is generated, and noise generation is reduced.

Description

technical field [0001] The invention relates to a lock body for a house door, in particular to a mechanical silent lock for a house door. Background technique [0002] In our daily life, the bedroom door is used most frequently. After the bedroom door is closed, it has a certain sound insulation function, which isolates the noise from the dining room and living room. However, in the bedroom where we need a quiet and peaceful rest space, the noise generated by the door lock when opening and closing the door greatly affects our daily life. Most of the door locks on the market do not have a silent function, and the noise generated is relatively large. The elderly and children have high requirements on the sleeping environment, and the generation of noise has a greater impact on the sleep quality of these people. [0003] The existing bedroom door mechanical lock body has the following disadvantages in terms of structure and silence: 1. The traditional mechanical lock body wil...

AI Technical Summary

Problems solved by technology

[0003] The existing bedroom door mechanical lock body has the following disadvantages in terms of structure and silence: 1. The traditional mechanical lock body will emit an instant impact sound when the deadbolt collides with the door frame; 3. The collision between the bedroom door and the door frame will make a collision sound; 4. After the door handle is opened and closed, under the action of the spring force, the rebound will make a collision sound

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