Water-cooling pot cover assembly and pressure cooking utensil

The pot cover assembly comprises an upper cover, an inner cover detachably installed on the upper cover and a cooling plate, the cooling plate is fixed to the inner cover so as to be matched with the inner cover to define a cooling cavity, and the cooling plate is provided with a water inlet connector, a water outlet connector and a positioning piece. The upper cover is provided with a water inlet pipe, a water outlet pipe and a matching portion matched with the positioning piece, and when the inner cover is installed on the upper cover, the water inlet pipe is communicated with the water inlet connector in an inserted mode, and the water outlet pipe is communicated with the water outlet connector in an inserted mode. The water inlet connector is aligned with the water inlet pipe, the water outlet connector is aligned with the water outlet pipe, the positioning piece is aligned with the matching part, three-point positioning is achieved, the three points are not located on the same straight line, triangular p