Title:
WATER OUTLET VALVE
Document Type and Number:
WIPO Patent Application WO/2023/087355
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of valve bodies, and in particular relates to a water outlet valve. The water outlet valve comprises a valve body having a water outlet hole, wherein a limiting ring surface is provided in the water outlet hole, an agent suction groove is provided on the limiting ring surface, an agent suction channel is provided on the valve body, a one-way assembly is provided in the agent suction channel, a Venturi tube body and a piston ring sleeve are axially and slidably connected to the water outlet hole, and the inner end of an inner hole diameter of the Venturi tube body is larger than the outer end thereof. When a liquid is at a low pressure, the Venturi tube body slides outwards under the action of an elastic member so as to be attached to the limiting ring surface in an abutting manner, and an agent suction hole is in communication with the agent suction groove; and when the liquid is at a high pressure, the piston ring sleeve pushes the Venturi tube body to slide inwards against the elastic member under the action of hydraulic pressure. The present invention has an ingenious structure and a reasonable design; when water is normally discharged, a liquid agent is sucked into the valve body by means of negative pressure generated by the flowing of the liquid in the Venturi tube body, thereby achieving automatic mixing of a foam liquid; and when a small amount of water is discharged, or water discharge is stopped, the sucking and mixing of the liquid agent are stopped automatically, without the need to manually mix the liquid agent, which makes same convenient to operate.
Inventors:
BAO XIANQI (CN)
Application Number:
PCT/CN2021/133113
Publication Date:
May 25, 2023
Filing Date:
November 25, 2021
Export Citation:
Assignee:
ZHEJIANG DANAU MACHINE CO LTD (CN)
International Classes:
F16K11/02; B05B12/08
Foreign References:
| US20040079411A1 | 2004-04-29 | |||
| US20130020353A1 | 2013-01-24 | |||
| CN201531467U | 2010-07-21 | |||
| CN204724509U | 2015-10-28 | |||
| CN210565042U | 2020-05-19 | |||
| CN107073413A | 2017-08-18 | |||
| CN110394325A | 2019-11-01 |
Attorney, Agent or Firm:
LANTIAN INTELLECTUAL PROPERTY AGENCY (CN)
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