Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANTI-LEAKAGE VALVE
Document Type and Number:
WIPO Patent Application WO/2019/085141
Kind Code:
A1
Abstract:
An anti-leakage valve, comprising a body (1), a cartridge (2) mounted in the body (1), and a seat (3) and a cage (4) matching the cartridge (2). The cage (4) is matingly connected to the seat (3); an annular gap (5) is formed on the cage (4); a seal ring (6) is provided in the annular gap (5); the seal ring (6) can be attached to the outer circumferential surface (17) of the cartridge (2); a groove (9) is formed in the seal ring (6); the cage (4) comprises a stop wall (8) integrally formed with the cage (4); the stop wall (8) comprises at least one small hole (10) that is in communication with the groove (9); the stop wall (8) partially stops the seal ring (6). The valve can be kept sealed after wear leakage occurs on the contact surface of the cartridge (2) and the seat (3), and has a better seal effect in case of higher fluid pressure.

Inventors:
QIU, Mei (Room 1, Building 4Tayuan Road 338, New Distric, Suzhou Jiangsu 0, 215000, CN)
Application Number:
CN2017/114759
Publication Date:
May 09, 2019
Filing Date:
December 06, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
SUZHOU DANDUN ELECTROMECHANICAL CO. LTD (Room 1, Building 4Tayuan Road 338, New Distric, Suzhou Jiangsu 0, 215000, CN)
International Classes:
F16K1/46; F16J15/32
Foreign References:
CN207421358U2018-05-29
CN203431212U2014-02-12
CN1954149A2007-04-25
CN102011866A2011-04-13
CN202012629U2011-10-19
CN202001646U2011-10-05
US20100270491A12010-10-28
CN102506175A2012-06-20
Attorney, Agent or Firm:
SUZHOU WISTONG INTELLECTUAL PROPERTY AGENCY (COMMON PARTNERSHIP) (Room 804, Building 5Xuesen Road 9, Science & Technology Town, New Distric, Suzhou Jiangsu 3, 215163, CN)
Download PDF: