Plastic top cover of mobile toilet

The utility model belongs to the field of toilet facilities, and particularly discloses a plastic top cover of a mobile toilet, which comprises a cover seat, a top cover body is rotatably mounted on the upper end face of the cover seat, a bump extends from the lower end face of the top cover body, a fixing groove is arranged on the side face of the cover seat, the bump is positioned inside the fixing groove, and the top cover body is fixed on the cover seat. Protruding blocks are arranged in the fixing grooves, the protruding blocks and the fixing grooves are attracted through magnetism, limiting grooves are formed in the front end face and the rear end face of each protruding block, spring bodies extend from the rear end faces in the limiting grooves, supporting blocks are installed in the limiting grooves in an attached mode, the ends of the spring bodies are fixedly connected with the rear end faces of the supporting blocks, and fixing columns extend from the front end faces of the supporting blocks. Falle