Sound insulation door, door control driving mechanism, control method and railway vehicle

The invention firstly provides a sound insulation door which comprises a door body, a door body frame, a door control driving mechanism and a bottom sliding mechanism, the door body frame is provided with a cavity, and a sound insulation material is attached to the cavity and/or a vibration reduction material is filled in the cavity; the door body is assembled and fixed with the door body frame and comprises panels on the two sides, a vibration reduction material and a sound insulation material, and the vibration reduction material and the sound insulation material are pressed between the two panels; the door control driving mechanism is assembled with an assembly formed by assembling the door body and the door body frame and drives the sound insulation door to be opened and closed; the bottom sliding mechanism is assembled and fixed with the door body frame and/or the lower portion of the door body and comprises a lower sliding groove with an opening in the bottom, the top of a lower sliding guide rail laid