Pressure relief mechanism of pressure cooker

The pressure cooker pressure relief mechanism comprises a cooker body and a cooker cover matched with the cooker body, the upper end of the inner side of the cooker body is fixedly connected with a limiting ring I, a plurality of clamping grooves with U-shaped openings are formed in the inner side of the cooker cover in the circumferential direction, and the U-shaped openings of the clamping grooves face the limiting ring I; therefore, the clamping groove and the limiting ring I can be clamped by moving the clamping groove in practice, the relative position between the pot cover and the pot body is fixed, and it is guaranteed that the high pressure state can be generated in the pot body. Meanwhile, an up-down axial sleeve is fixedly connected to the upper end of the clamping groove, an extension spring is fixedly connected to the interior of the sleeve, an inner rod is fixedly connected to the upper end of the extension spring, and the inner rod is movably connected with the cooker cover, so that it is guaran