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Leveling device of household appliance and household appliance with same

  • US 10,443,777 B2
  • Filed: 12/28/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 07/08/2016
  • Status: Active Grant
First Claim
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1. A household appliance, comprising at least two leveling feet mounted at a bottom of the household appliance, whereineach leveling foot comprises a fixed part which is a cylinder and a movable part, the fixed part is mounted at the bottom of the household appliance, one end of the movable part is telescopically sleeved by sleeves on the fixed part, another end of the movable part is arranged on a support plane, a closed chamber is formed between the fixed part and the movable part, and the closed chamber is provided with a hydraulic medium;

  • the closed chambers of at least two said leveling feet communicate with each other via an oil pipe set, the hydraulic medium flows under pressure between the closed chambers of the leveling feet communicating with each other, and the movable parts expand or contract along with the flowing of the hydraulic medium to perform automatic leveling; and

    acting contact surfaces of the hydraulic medium in the leveling feet communicating with each other via the oil pipe set have different areas;

    the cylinders of the leveling feet communicating with each other via the oil pipe set have different inner diameters;

    whereina center of gravity of the household appliance does not coincide with a geometrical center of the household appliance, the leveling foot with the cylinder having a larger inner diameter is installed closer to the center of gravity of the household appliance.

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