Wheel assembly and household appliance

The utility model relates to the technical field of household appliances, and provides a wheel assembly and a household appliance, the wheel assembly comprises a mounting part, a wheel part and a supporting piece, and the mounting part is provided with a supporting part; the wheel part comprises a wheel body and a lead screw arranged on the wheel body, and the lead screw penetrates through the supporting part and is in threaded connection with the mounting part; and the supporting piece is arranged between the mounting part and the wheel body and is in threaded connection with the supporting part. According to the wheel assembly, the mounting base and the supporting piece are arranged, and the supporting part in threaded fit with the supporting piece is arranged on the mounting base, so that the wheel assembly has the height adjusting function, and due to the height adjusting function of the wheel assembly, the mounting base and the supporting piece are additionally arranged on an existing structure of the wheel assembly, and the structure of the mounting base is adaptively adjusted; the supporting part can be a standard part, so that the structure is simple, the manufacturing process is simple and convenient, and the practicability is high.