Title:
EJECTOR, DISPENSE DEVICE AND LAUNDRY TREATMENT APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/005510
Kind Code:
A1
Abstract:
An ejector for a laundry treatment apparatus, and a dispense device and a laundry treatment apparatus. The ejector is provided with a flow channel, which is composed of a front chamber portion, a connecting portion and a rear chamber portion that are connected in sequence, and which allows a water flow to flow therethrough, wherein the connecting portion is provided with a gap for enabling the flow channel to communicate with the external atmosphere; a water output end of the front chamber portion is provided with an ejection hole which ejects the water flow and directly ejects the water flow into the rear chamber portion via the connecting portion; and a water input end of the rear chamber portion is provided with an injection hole for receiving the water flow ejected through the ejection hole, and the rear chamber portion is provided with a variable-diameter flow channel, the cross-sectional dimension of which gradually increases in the direction of the water flow. According to the present invention, the gap for enabling the flow channel to communicate with the external atmosphere is provided in the ejector, and the gap can be used for discharging a water flow flowing backward through the ejector, so as to achieve the aim of preventing backflow at a waterway provided with the ejector. Moreover, the variable-diameter flow channel, which widens in the direction of the incoming water flow, is arranged downstream of the gap of the ejector, so as to block the water backflow and effectively prevent the water backflow from flowing back to an upstream tap water pipeline.
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Inventors:
HUANG TAO (CN)
CHENG BAOZHEN (CN)
ZHANG HUACHENG (CN)
CHENG BAOZHEN (CN)
ZHANG HUACHENG (CN)
Application Number:
PCT/CN2022/100074
Publication Date:
February 02, 2023
Filing Date:
June 21, 2022
Export Citation:
Assignee:
QINGDAO HAIER LAUNDRY ELECTRIC APPLIANCES CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
HAIER SMART HOME CO LTD (CN)
International Classes:
D06F39/02; A47L15/44; D06F39/08
Foreign References:
| CN111032948A | 2020-04-17 | |||
| CN105862349A | 2016-08-17 | |||
| CN111286933A | 2020-06-16 | |||
| CN207324530U | 2018-05-08 | |||
| CN111455619A | 2020-07-28 | |||
| JP2008154863A | 2008-07-10 | |||
| JP2015100720A | 2015-06-04 |
Attorney, Agent or Firm:
BEIJING YUANZHONG INTELLECTUAL PROPERTY AGENT LTD. (CN)
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