Title:
AUTONOMOUS PRESSURE RELIEF HIGH-PROTECTION PRESSURE TANK FOR WATER PUMP
Document Type and Number:
WIPO Patent Application WO/2023/045174
Kind Code:
A1
Abstract:
An autonomous pressure relief high-protection pressure tank (1) for a water pump, comprising: a filter screen (4) fixed in the pressure tank (1), a movable rod (5) being movably provided at the lower edge of the filter screen (4); a fixed rod (7) fixed to the upper middle position of the filter screen (4), an expansion pad (8) being pasted to the pressure tank (1) outside the fixed rod (7); a movable column (10) movably penetrating through the top of the pressure tank (1), a second spring (11) being wound on the outer side of the movable column (10); and a pressure relief hole (13) formed on the inner top surface of the pressure tank (1), a connection cavity (14) being reserved at the side wall of the top of the pressure tank (1). When the pressure in the pressure tank is too high, an automatic pressure relief operation can be achieved by the pressure tank to ensure the normal use of the pressure tank.
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Inventors:
LIAN WENJIE (CN)
LIAN WEIJIE (CN)
WANG TIANTIAN (CN)
LIAN WEIJIE (CN)
WANG TIANTIAN (CN)
Application Number:
PCT/CN2021/143620
Publication Date:
March 30, 2023
Filing Date:
December 31, 2021
Export Citation:
Assignee:
TAIZHOU TIANYANG MECH & ELECTRICAL CO LTD (CN)
International Classes:
F04B11/00; E03B11/08; F04B53/06
Foreign References:
| CN108265787A | 2018-07-10 | |||
| CN203174689U | 2013-09-04 | |||
| CN212612804U | 2021-02-26 | |||
| CN212772621U | 2021-03-23 | |||
| US20030094204A1 | 2003-05-22 | |||
| US20050095139A1 | 2005-05-05 | |||
| CN110645387A | 2020-01-03 |
Attorney, Agent or Firm:
HANGZHOU HANGXIN INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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