FOOT FOR HOUSEHOLD APPLIANCE AND HOUSEHOLD APPLIANCE

• US 20190011075A1
• Filed: 06/29/2017
• Published: 01/10/2019
• Est. Priority Date: 03/22/2017
• Status: Active Grant

• Current Assignee: Qingdao Haier Washing Machine Co., Ltd. (Haier Group Company), Qingdao Haier Smart Technology R&D Co., Ltd.
• Original Assignee: Qingdao Haier Washing Machine Co., Ltd. (Haier Group Company), Qingdao Haier Smart Technology R&D Co., Ltd.
• Inventors: ZHAO, Zhiqiang
• Granted Patent: US 10,738,932 B2
• Time in Patent Office: Days
• CPC Class Codes: A47B 91/16 Self-levelling legs
• CPC Class Codes: A47L 15/4253 Supporting arrangements for the casing, e.g. rollers or supporting legs
• CPC Class Codes: D06F 37/20 Mountings, e.g. resilient mountings, for the rotary receptacle, motor, tub or casing; Preventing or damping vibrations
• CPC Class Codes: D06F 39/125 Supporting arrangements for the casing, e.g. rollers or legs
• CPC Class Codes: F16M 2200/08 Foot or support base
• CPC Class Codes: F16M 7/00 Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks elastic or equivalent mounting for absorbing vibrations F16F, especially F16F15/04

Abstract

The present disclosure provides a foot for household appliance and a household appliance. The foot comprises a hydraulic plate; a sheath, which is fixedly connected with the hydraulic plate; a regulating foot, which is arranged in the sheath and is axially movable relative to the sheath; an accommodation chamber, which is formed by the hydraulic plate, the sheath and the regulating foot; a hydraulic medium, which is arranged in the accommodation chamber and is compressed/expands depending on pressure changes to drive the regulating foot to axially move in the sheath for leveling; and a throttling structures, which is arranged in the hydraulic plate for slowing down flow velocity of the hydraulic medium. According to the foot provided by the present disclosure, the throttling structure is arranged in the hydraulic plate, so that the rapid flowing of the hydraulic medium is prevented, and a regulating process can be more stable.

Claims

1. A foot for household appliance, comprising:

a hydraulic plate;

a sheath, fixedly connected with the hydraulic plate;

a regulating foot, which is arranged in the sheath and axially movable relative to the sheath;

an accommodation chamber formed by the hydraulic plate, the sheath and the regulating foot;

a hydraulic medium, which is in the accommodation chamber and is compressed/expands depending on pressure changes to drive the regulating foot to axially move in the sheath for leveling; and

a throttling structure, arranged in the hydraulic plate for slowing down a flow velocity of the hydraulic medium.

2. The foot for household appliance according to claim 1, characterized in that the throttling structure is a throttling flow passage arranged in the hydraulic plate, and the throttling flow passage allows the flowing damping force of the hydraulic medium to increase for reducing the flow velocity of the hydraulic medium.

3. The foot for household appliance according to claim 1, characterized in that a hydraulic nozzle is arranged on the hydraulic plate for allowing the hydraulic medium to flow out;

the throttling flow passage comprises a first throttling flow passage and a second throttling flow passage,

one end of the first throttling flow passage communicates with the accommodation chamber, another end of the first throttling flow passage communicates with the second throttling flow passage, and

the second throttling flow passage communicates with the hydraulic nozzle.

4. The foot for household appliance according to claim 3, characterized in that a diameter of the first throttling flow passage is greater than that of the second throttling flow passage.

5. The foot for household appliance according to claim 3, characterized in that, a throttling hole is formed at a connecting position of the first throttling flow passage and the second throttling flow passage, and a diameter of the throttling hole is smaller than the diameters of both the first throttling flow passage and the second throttling flow passage.

6. The foot for household appliance according to claim 3, characterized in that an end of the first throttling flow passage forms a throttling hole, and the end is in communication with the second throttling flow passage, and is reduced in diameter

or, an end of the second throttling flow passage forms a throttling hole, and the end communicates with the first throttling flow passage and is reduced in diameter.

7. The foot for household appliance according to claim 2, characterized in that a minimum diameter d of the throttling flow passage meets that:

d≤

6 mm.

8. The foot for household appliance according to claim 1, characterized in that a liquid flow passage for allowing the hydraulic medium to flow therein is formed in the hydraulic plate, and

the throttling structure is arranged in the liquid flow passage to increase the flowing damping force of the hydraulic medium to reduce the flow velocity of the hydraulic medium.

9. The foot for household appliance according to claim 1, further comprising a flexible accommodation body with a chamber therein,

the hydraulic medium is accommodated in the flexible accommodation body,

the flexible accommodation body has an opening part, and

the opening part of the flexible accommodation body is fixedly mounted on the hydraulic plate and communicates with the throttling flow passage or the liquid flow passage.

10. A household appliance with the foot for household appliance according to claim 1, comprising at least two feet for household appliance communicated with each other through a communicating member so as to allow the hydraulic medium to flow between the household appliance bottom feet.

11. The foot for household appliance according to claim 7, characterized in that a minimum diameter d of the throttling flow passage meets that:

d≤

2 mm.

12. The foot for household appliance according to claim 7, characterized in that a minimum diameter d of the throttling flow passage meets that:

d≤

1 mm.