Title:
PIPE FITTING JOINT ASSEMBLY
Document Type and Number:
WIPO Patent Application WO/2019/149014
Kind Code:
A1
Abstract:
A pipe fitting joint assembly, comprising: a guide sleeve (12), provided with a first concave-convex structure (121) on the outer wall of one end thereof; a connecting body (11), provided with a second concave-convex structure (111) on the inner walls of both ends thereof; and an inner gear ring (23), provided with a third concave-convex structure (231) on an inner ring thereof and a fourth concave-convex structure (240) on an outer ring thereof. The inner gear ring (23) is concentrically inserted into the connecting body (11); the fourth concave-convex structure (240) and the second concave-convex structure (111) are in interference fit; the guide sleeve (12) is concentrically inserted into the inner ring gear (23) of the connecting body (11); and the first concave-convex structure (121) and the fourth concave-convex structure (240) are in clearance fit therebetween using a moving interference manner. During use, the guide sleeve and the inner gear ring rotate relative to each other, and the first concave-convex structure and the third concave-convex structure scrape against each other due to movement interference, thus generating friction sound and a vibrating feeling when touched by a hand. A user may thus determine whether a pipe is installed correctly by listening for a friction sound and feeling for vibration.
More Like This:
| WO/2016/003686 | CAP FOR A QUICK-CONNECTOR COUPLING |
Inventors:
LIN XIYONG (CN)
CHENG JIAJIA (CN)
DIAO ZHENBIN (CN)
LI XIN (CN)
CAO HUIJIAN (CN)
CHEN WENFENG (CN)
LIAO JIANBO (CN)
LI XIMIN (CN)
CHEN ALI (CN)
CHENG JIAJIA (CN)
DIAO ZHENBIN (CN)
LI XIN (CN)
CAO HUIJIAN (CN)
CHEN WENFENG (CN)
LIAO JIANBO (CN)
LI XIMIN (CN)
CHEN ALI (CN)
Application Number:
PCT/CN2018/125613
Publication Date:
August 08, 2019
Filing Date:
December 29, 2018
Export Citation:
Assignee:
RIFENG ENTPR FOSHAN CO LTD (CN)
RIFENG ENTPR GROUP CO LTD (CN)
RIFENG TECH CO LTD (CN)
RIFENG ENTPR GROUP CO LTD (CN)
RIFENG TECH CO LTD (CN)
International Classes:
F16L37/12
Foreign References:
| CN104154363A | 2014-11-19 | |||
| CN203940141U | 2014-11-12 | |||
| CN203924271U | 2014-11-05 | |||
| CN105221878A | 2016-01-06 | |||
| KR20090069120A | 2009-06-29 | |||
| US20100032943A1 | 2010-02-11 |
Other References:
See also references of EP 3633259A4
Attorney, Agent or Firm:
ADVANCE CHINA IP LAW OFFICE (CN)
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