Self-locking switch hand wheel mechanism for quick-opening blind plate and pressure container

The utility model relates to a self-locking type switch hand wheel mechanism for a quick-opening blind plate and a pressure container. The self-locking type switch hand wheel mechanism comprises a hand wheel, a gear sleeve, a shell and a bidirectional shifting piece. Meshing tooth parts are arranged on the two sides of a bidirectional shifting piece correspondingly, so that when the meshing tooth parts are meshed with teeth on the outer wall of a gear sleeve, a gear lock fixed to a blind plate body is driven to rotate in the first direction, and the blind plate body and a blind plate cover are unlocked; or the gear lock is driven to rotate in the second direction, so that the blind plate main body and the blind plate cover are locked. In other words, according to the self-locking switch hand wheel mechanism, when rotation of the hand wheel is blocked, due to the fact that the two-way shifting piece is meshed with the gear sleeve through the gear, the gear lock can stay at the position and does not move, and i