Opening and closing mechanism of pressure cooker

The invention provides an opening and closing mechanism of a pressure cooker, belongs to the technical field of machines, and aims to solve the problem of low safety of the existing cover opening and closing safety device of the pressure cooker. The opening and closing mechanism of the pressure cooker comprises an upper handle and a lower handle, wherein the upper handle is connected to a pot cover; the lower handle is connected to a pot body; the pot cover is provided with an opening stop rod which can move up and down when pressure in the pot body changes; the upper handle is provided with a push plate which can slide along the axial direction of the handle; the front end of the push plate is provided with an opening stop hole; the bottom of the upper handle is connected with a buckle plate; the lower end of the push plate is provided with a convex sliding foot; the buckle plate is correspondingly provided with a sliding chute I and the sliding foot is positioned in the sliding chute I; the lower end of the push plate is also provided with a buckle; when the pot cover is not closed, the buckle is buckled on the edge of the buckle plate and the upper end of the opening stop rod is limited in the opening stop hole. The opening and closing mechanism of the pressure cooker has the advantage of high safety.