Title:
SEALING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2021/093316
Kind Code:
A1
Abstract:
Disclosed is a sealing structure, comprising an inner tube (1), an outer tube (2) and a sealing ring (4), wherein the outer tube (2) is sheathed over the inner tube (1), with an insertion slot (5) being formed between the inner wall of the outer tube (2) and the outer wall of the inner tube (1) for the insertion of a pipe (3), and the outer wall of the inner tube (1) being provided with a sealing slot (6) for the placement of the sealing ring (4); the sealing ring (4) comprises a main body (7), and the main body (7) is provided with a lip (8); the sealing slot (6) comprises a first sealing slot portion (9) and a second sealing slot portion (10), with the first sealing slot portion (9) and the second sealing slot portion (10) being step-shaped, and the slot depth of the first sealing slot portion (9) being less than that of the second sealing slot portion (10); and the bottom of the lip (8) is attached to the slot bottom of the first sealing slot portion (9), the thickness of the lip (8) in a non-compressed state is greater than the slot depth of the first sealing slot portion (9), the width of the lip (8) in the non-compressed state is less than the slot width of the first sealing slot portion (9), the bottom of the main body (7) is attached to the slot bottom of the second sealing slot portion (10), and the thickness of the main body (7) in the non-compressed state is less than or equal to the slot depth of the second sealing slot portion (10).
Inventors:
DIAO ZHENBIN (CN)
LI XIMIN (CN)
LIN XIYONG (CN)
CHENG JIAJIA (CN)
CHEN WENFENG (CN)
CAO HUIJIAN (CN)
CHEN ALI (CN)
LI XIMIN (CN)
LIN XIYONG (CN)
CHENG JIAJIA (CN)
CHEN WENFENG (CN)
CAO HUIJIAN (CN)
CHEN ALI (CN)
Application Number:
PCT/CN2020/094770
Publication Date:
May 20, 2021
Filing Date:
June 05, 2020
Export Citation:
Assignee:
RIFENG ENTPR FOSHAN CO LTD (CN)
RIFENG ENTPR GROUP CO LTD (CN)
RIFENG ENTPR GROUP CO LTD (CN)
International Classes:
F16L33/22
Foreign References:
| CN110792862A | 2020-02-14 | |||
| JP2008208893A | 2008-09-11 | |||
| US20020163191A1 | 2002-11-07 | |||
| CN1596353A | 2005-03-16 | |||
| JP2006170379A | 2006-06-29 | |||
| JP2013155878A | 2013-08-15 |
Other References:
See also references of EP 3869078A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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