Title:
MICRO-BUBBLE SPRAY HEAD AND WASHING DEVICE WITH SAME
Document Type and Number:
WIPO Patent Application WO/2021/109971
Kind Code:
A1
Abstract:
A micro-bubble spray head and a washing device with the same. The microbubble spray head comprises an integrated nozzle (521) and a microbubble filter bag (522) fixed in the outlet end (212) of the integrated nozzle (521), and a Venturi tube structure is formed in the integrated nozzle (521), and a suction port (216) is provided with the integrated nozzle (521), so that the air is sucked into the integrated nozzle (521) through the suction port (216) by means of a negative pressure made by the Venturi tube structure, and mixed with the water flow in the integrated nozzle (521) to produce bubble water; the microbubble filter bag (522) comprises an opening (223), a bottom (221) and a side wall between the opening (223) and the bottom (221), the opening (223) faces the venturi tube structure, and a outlet space (524) is formed between the side wall (222) and the inner wall (212a) of the outlet end (212), so that the bubble water can pass through the side wall (222) and the bottom (221) to form microbubble water. Not only the bottom portion (221) of the microbubble filter bag (522) participates in mixing and cutting of the bubble water, but also the side walls (222) of the larger area of the micro-bubble filter bag (522) also participate in mixing and cutting of the bubble water, so that the yield of the microbubble water of the microbubble spray head can be significantly increased.
Inventors:
ZHAO ZHIQIANG (CN)
XU SHENG (CN)
XU SHENG (CN)
Application Number:
PCT/CN2020/132826
Publication Date:
June 10, 2021
Filing Date:
November 30, 2020
Export Citation:
Assignee:
QINGDAO HAIER DRUM WASHING MACHINE CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
D06F35/00; B05B7/00
Foreign References:
| CN211772131U | 2020-10-27 | |||
| CN211368092U | 2020-08-28 | |||
| CN211772133U | 2020-10-27 | |||
| CN211772134U | 2020-10-27 | |||
| CN211368090U | 2020-08-28 | |||
| CN211395013U | 2020-09-01 | |||
| CN211395014U | 2020-09-01 | |||
| CN107583479A | 2018-01-16 | |||
| CN207591642U | 2018-07-10 | |||
| CN108380067A | 2018-08-10 | |||
| CN107321204A | 2017-11-07 | |||
| JP2008142688A | 2008-06-26 | |||
| US20180274152A1 | 2018-09-27 | |||
| CN107321204A | 2017-11-07 | |||
| CN107583480A | 2018-01-16 |
Other References:
See also references of EP 4071290A4
Attorney, Agent or Firm:
HANRAY LAW FIRM (CN)
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