Title:
SPRAY ARM, AND WATER PUMPING MECHANISM AND CLEANING MACHINE THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/135614
Kind Code:
A1
Abstract:
A spray arm, and a water pumping mechanism and cleaning machine thereof. The spray arm comprises a body (1, 1') and a top plate (2, 2'), the top plate (2, 2') and the top surface (1a, 1a')of the body (1, 1') jointly enclosing a gas collection chamber(20, 20'). Water spraying holes (13) are located in the gas collection chamber (20, 20'), nozzles (21) corresponding to the water spraying holes (13) are formed in the top plate (2, 2'), and gaps (100) capable of generating negative pressure during a water spraying process are provided between the upper ends of the water spraying holes (13) and the lower ends of the nozzles (21). Air inlets (154) in communication with the gas collection chamber (20, 20') are formed in the top plate (2, 2') and/or a side wall (1c, 1c') of the body (1, 1'). On the basis of the Venturi effect, in the process of water flowing through the water spraying holes (13) and spraying out from the nozzles (21), air in the gas collection chamber (20, 20') can be suctioned into the water columns by means of the gaps (100) between the water spraying holes and the nozzles, thereby causing air bubbles to be entrained in the jet flow, said bubbles being able to strengthen a dirt removing force by bursting on dishes or fruits and vegetables, improving the cleaning effect.
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Inventors:
ZHAO SHUHAN (CN)
ZHENG FENG (CN)
WEI BENZHU (CN)
YAO YONGLEI (CN)
SHI ZHENGZAN (CN)
ZHANG CHANGHAI (CN)
HAN JIANJIAN (CN)
JIANG YONG (CN)
ZHENG FENG (CN)
WEI BENZHU (CN)
YAO YONGLEI (CN)
SHI ZHENGZAN (CN)
ZHANG CHANGHAI (CN)
HAN JIANJIAN (CN)
JIANG YONG (CN)
Application Number:
PCT/CN2022/074075
Publication Date:
June 30, 2022
Filing Date:
January 26, 2022
Export Citation:
Assignee:
NINGBO FOTILE KITCHEN WARE CO (CN)
International Classes:
A47L15/42
Foreign References:
| CN109589070A | 2019-04-09 | |||
| CN208193081U | 2018-12-07 | |||
| CN111407205A | 2020-07-14 | |||
| JP2004298346A | 2004-10-28 |
Attorney, Agent or Firm:
NINGBO CHANNEL PATENT ATTORNEYS OFFICE (CN)
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