Floating type lock silencing structure

The utility model discloses a floating type lock noise reduction structure which comprises a shell and a main spring bolt movably connected with the shell, a guide piece with a guide hole is arranged on one side of the shell, and the main spring bolt is in clearance fit with the guide piece. A silencing structure with a floating function is arranged in the shell, the silencing structure is movably connected with the shell through a shaft fixed to the shell, the silencing structure is in clearance fit with the shell in the axial direction, and the silencing structure has elasticity in the axial direction so that it can be guaranteed that the silencing structure makes contact with the main spring bolt all the time, and therefore noise reduction and silencing are achieved. The silencing structure is arranged to be a floatable structure, it can be ensured that the main silencing wheel makes contact with the main spring bolt all the time, friction noise between the main spring bolt and the shell and between the ma