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Title:
ANNULAR HARD SEALING WASHER HAVING BOW-SHAPED SECTION AND SEALING TUBE CONNECTOR
Document Type and Number:
WIPO Patent Application WO/2018/072522
Kind Code:
A1
Abstract:
Provided is an annular hard sealing washer having a bow-shaped longitudinal section. A circular arc portion of the bow-shaped cross-section faces outwards. A sealing line is arranged at the circular arc portion. A line corresponding to a bowstring is parallel to a tube. An annular protruding platform is provided at a position corresponding to a bow grip at the longitudinal section. The sealing washer adopts a circular-arc-shaped line for sealing, opposite to the configuration of a keystone-shaped sealing system. When applied in a flange, the annular sealing washer does not need a positioning platform, nor does the flange need a positioning recess. The annular sealing washer having a bow-shaped longitudinal section is particularly suitable for sealing a flange.

Inventors:
YANG SHUNLI (CN)
CHEN GONG (CN)
GUO XIAJIANG (CN)
MA FANGLIN (CN)
Application Number:
PCT/CN2017/095214
Publication Date:
April 26, 2018
Filing Date:
July 31, 2017
Export Citation:
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Assignee:
YANG SHUNLI (CN)
International Classes:
F16J15/02; F16L23/18
Domestic Patent References:
WO2016040569A12016-03-17
Foreign References:
CN206329834U2017-07-14
CN106352181A2017-01-25
CN105179698A2015-12-23
CN105299353A2016-02-03
CN204717181U2015-10-21
CN203756982U2014-08-06
Attorney, Agent or Firm:
NANJING RUI ZHI BO IP AGENCY CO., LTD. (CN)
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