Title:
COUPLING HAVING TWO-STAGE SEALING STRUCTURE
Document Type and Number:
WIPO Patent Application WO/2020/241992
Kind Code:
A1
Abstract:
A coupling having a two-stage sealing structure is disclosed. A coupling having a two-stage sealing structure according to an embodiment of the present invention, which is designed to couple a first machined part to a second machined part while allowing the first and second machined parts to communicate with each other, may comprise: a body part having a communication hole formed therein; a first communication part provided at a first end of the body part and formed to be fitted onto the first machined part; and a second communication part provided at a second end of the body part and having a second screw portion so as to be screwed to the second machined part, wherein the first communication part is hermetically coupled to the first machined part by a forced-insertion method, and the second communication part is hermetically coupled to the second machined part by a normal sealing method.
Inventors:
NOH SANG SOO (KR)
KIM SEONG GYEOL (KR)
KIM JEONG JU (KR)
KIM SEONG GYEOL (KR)
KIM JEONG JU (KR)
Application Number:
PCT/KR2019/016844
Publication Date:
December 03, 2020
Filing Date:
December 02, 2019
Export Citation:
Assignee:
DAEYANG ELECTRIC CO LTD (KR)
International Classes:
F16B4/00; F16B7/18; F16J15/02
Foreign References:
| KR20110023408A | 2011-03-08 | |||
| JP2014211342A | 2014-11-13 | |||
| US3921280A | 1975-11-25 | |||
| KR20040107178A | 2004-12-20 | |||
| KR20060027176A | 2006-03-27 |
Attorney, Agent or Firm:
RYU, Won Rim (KR)
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