Clamp type pressure cooker

A clamp type pressure cooker comprises a cooker body, a cooker cover, a sealing ring, a pressure limiting valve and a clamp assembly, the pressure limiting valve and the clamp assembly are installed on the cooker cover, and the clamp type pressure cooker is characterized in that a driving mechanism comprises a driving disc and a driving wheel column, and the driving disc is rotatably arranged in the lower end space of a panel and located in the middle of the cooker cover; a convex column rotationally connected with the two moving plates is arranged on the driving disc in the radial direction, the driving wheel column is vertically arranged above one moving plate, the lower end of the driving wheel column is rotationally connected with the cooker cover through a center shaft pin, and an eccentric kidney-shaped hole is formed in the lower end of the driving wheel column and is connected with a side shaft pin on the moving plate in an inserted mode. And a positioning mechanism for rotationally limiting the drivi