PIPELINE QUICK-CONNECTION HOOP

WIPO Patent Application WO/2020/119655

A1

Disclosed is a pipeline quick-connection hoop, comprising two semi-annular hoop bodies (1), wherein two ends of each of the hoop bodies (1) are respectively provided with a lug (2) for receiving a screwed connecting member; an inner ring surface of each hoop body (1) is provided, at an interval, with two raised ribs (3) which radially protrude inwards and extend in the circumferential direction of the inner ring surface; and the inner ring surface is provided with a sealing ring groove (4) located between the raised ribs (3). The two hoop bodies (1) can be connected together end-to-end by means of bolts (5) passing through the lugs (2); the two hoop bodies (1) can enclose a central space for receiving a pipeline after being connected end-to-end, and the central space is internally provided with a sealing ring (6) arranged in the sealing ring groove (4); the distance between the groove bottom of the sealing ring groove (4) and an inner ring surface of the raised rib (3) is a groove depth; and the groove depth is largest in the middle of the hoop bodies (1), and is shallowest at the ends of the hoop bodies (1).

ZHANG HAIRUO (CN)
PAN CHENGFEI (CN)

PCT/CN2019/124154

June 18, 2020

December 10, 2019

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AQUA CASTING INC (CN)

F16L21/06; F16L37/00

WO2018105798A1

2018-06-14

CN109340484A	2019-02-15
CN109442108A	2019-03-08
CN104797871A	2015-07-22
CN105423015A	2016-03-23
CN104204640A	2014-12-10
KR101732065B1	2017-05-11
US20080007061A1	2008-01-10

WEIFANG YUANDU PATENT AGENCY (CN)

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