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Title:
RESIDUAL PRESSURE REMOVING TYPE PIPE CONNECTING DEVICE AND AIR CONDITIONING APPLIANCE
Document Type and Number:
WIPO Patent Application WO/2018/012698
Kind Code:
A1
Abstract:
The present invention relates to a residual pressure removing type pipe connecting device and an air conditioning appliance comprising the same. A residual pressure removing type pipe connecting device according to an example comprises: a first body having a first valve chamber formed therein; a first valve body installed in the first valve chamber; a first valve seat having a first valve hole provided therein such that the first valve body penetrates the same, the first valve seat making a sliding movement inside the first valve chamber and thereby exposing/blocking the first valve hole; a second body having a second valve chamber formed therein, the second valve chamber having a second valve seat portion provided thereon, the second body being inserted into the first valve chamber in a separable manner and coupled behind the first body, and the second body pushing the first valve seat, when coupled, thereby exposing the first valve hole; a second valve body that comprises a second shaft valve and is installed in the second valve chamber such that, when the first and second bodies are coupled, the second shaft valve is pushed backward by the first valve body, thereby exposing a channel of the second valve body, and, when the second body is separated, the second shaft valve moves forward and blocks the channel; and a connection retainer having one end fitted to the periphery of one of the first and second bodies such that, when the first and second bodies are coupled, the other end of the connection retainer is fastened to the outer peripheral surface of the other, wherein at least one residual pressure removing hole is provided on the periphery of the second body so as to communicate with the second valve chamber, and at least one residual pressure removing groove is formed on the inner peripheral surface of the connection retainer.

Inventors:
LEE, Chong-chun (#2-201, Cheonil Villa298-6, Baekseokdong-gil,Jongno-gu, Seoul, 03020, KR)
GO, Dong-pil (302 Tower Park Ville, 46 Hongjimun-gil,Jongno-gu, Seoul, 03013, KR)
Application Number:
KR2017/000924
Publication Date:
January 18, 2018
Filing Date:
January 25, 2017
Export Citation:
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Assignee:
LEE, Chong-chun (#2-201, Cheonil Villa298-6, Baekseokdong-gil,Jongno-gu, Seoul, 03020, KR)
KEEHA PRECISION CO., LTD. (#16, Mieumsandan-ro 92beon-gilGangseo-gu, Busan, 46748, KR)
International Classes:
F16L37/30; F16L19/00; F16L29/04; F24F1/32
Foreign References:
KR20090056148A2009-06-03
KR20140001020A2014-01-06
KR970002336B11997-03-03
KR20100066793A2010-06-18
JP2001208221A2001-08-03
Attorney, Agent or Firm:
KO, Kwang-Hoon (5F Ok-shin Tower, 117 Dogok-ro,Gangnam-gu, Seoul, 06253, KR)
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