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1. (WO2018036755) PRESSURE-ADJUSTABLE HIGH-PRESSURE SWITCH AND WATER PURIFIER USING THE HIGH-PRESSURE SWITCH

Pub. No.:    WO/2018/036755    International Application No.:    PCT/EP2017/069328
Publication Date: Fri Mar 02 00:59:59 CET 2018 International Filing Date: Tue Aug 01 01:59:59 CEST 2017
IPC: H01H 35/34
H01H 35/26
C02F 1/44
A47J 31/60
Applicants: UNILEVER PLC
ZHEJIANG QINYUAN WATER TREATMENT S. T. CO., LTD.
Inventors: CHEN, Enhua
LI, Xudong
PENG, Kaiqin
YE, Xiuyou
ZENG, Huayuan
Title: PRESSURE-ADJUSTABLE HIGH-PRESSURE SWITCH AND WATER PURIFIER USING THE HIGH-PRESSURE SWITCH
Abstract:
The present invention provides a pressure-adjustable high-pressure switch, comprising • a micro switch (1); • a triggering assembly (2) for triggering the micro switch (1); • a valve body (3) with a water flow channel (31) provided therein; • a support (4) fixed to the valve body (3); • and a piston (5) disposed in the support (4) for triggering of the micro switch (1) by the triggering assembly (2); • a water passage channel (6) in fluid communication with the water flow channel (31) provided in the valve body (3); • a diaphragm (7), positioned at one end of the water passage channel (6) wherein the diaphragm (7) pushes the piston (5) under the action of water pressure; • a spring (8), wherein the spring (8) causes the piston (5) to move towards the diaphragm (7), • an adjuster (9) for adjusting the degree of compression of the spring (8) is provided on the support (4); and • a housing (10), comprising the support (4), the micro switch (1) and the triggering assembly (2).