Support for household appliance, and household appliance

A support arrangement for a household appliance, comprising:

• at least two supports, each support including:
• a hydraulic plate;
• a sheath, fixedly connected with the hydraulic plate;
• a regulating element, arranged in the sheath and axially movable relative to the sheath for leveling, the regulating element configured to be driven by a hydraulic medium;
• and
• an accommodation chamber formed by the hydraulic plate, the sheath and the regulating element for containing the hydraulic medium;
• a communicating device, which enables the at least two supports to fluidly communicate with each other for allowing the hydraulic medium to flow between the at least two supports, the communicating device includes a hydraulic pipe and a communicating member;
• a one-way valve structure, arranged in the communicating device for conducting the hydraulic medium to flow in one direction;
• and
• the at least two supports are connected to the communicating member through the hydraulic pipe, wherein
• the communicating member is provided with a liquid flow passage for allowing the hydraulic medium to flow therein,
• the liquid flow passage includes a first throttling flow passage and a second throttling flow passage, a diameter of the first throttling flow passage is larger than a diameter of the second throttling flow passage,
• a sealing surface is formed at a junction of the first flow passage and the second flow passage,
• the one-way valve structure includes a valve ball, the valve ball is disposed in the first throttling flow passage, the valve ball configured to cooperate with the sealing surface to seal in one direction and close the liquid flow passage when the hydraulic medium flows form the first throttling flow passage towards the second throttling flow passage;
• and
• the liquid flow passage is open for allowing the hydraulic medium to flow from the second throttling flow passage to the first throttling flow passage when the valve ball moves away from the sealing surface.