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Patent Searching and Data


Title:
CLAMP RING TYPE CONNECTION STRUCTURE FOR METAL PIPE
Document Type and Number:
WIPO Patent Application WO/2019/080894
Kind Code:
A1
Abstract:
Disclosed is a clamp ring type connection structure for a metal pipe, the connection structure comprising: a clamp ring type pipe fitting (1), at least a sealing groove (2) and a clamp ring groove (3) being provided in an inner peripheral surface at a female end thereof, and the clamp ring groove (3) being located axially outside the sealing groove (2); a sealing ring (4) arranged in the sealed groove (2); a guide ring (5) arranged in the clamp ring groove (3) and located axially outside sealing ring (4), with the inner diameter of the guide ring (5) being less than that of the sealing ring (4) and being greater than the outer diameter of a metal pipe (7); and a metal clamp ring (6) being in a ring shape with a notch so as to be arranged in the clamp ring groove (3) and located axially outside the guide ring (5), wherein when the metal pipe (7) is inserted in place in the female end of the clamp ring type pipe fitting (1), the sealed groove (2) and the clamp ring groove (3) of the clamp ring type pipe fitting (1) are compressed to be deformed using a crimping tool, so as to deform the metal pipe by means of the tightening and deformation of the clamp ring, thereby realizing the sealed connection between the metal pipe and the clamp ring type pipe fitting by means of the sealing ring.

Inventors:
ZHOU, Qingnian (No. 37, Xialingyan Road Yandang Town, Yueqing Cit, Wenzhou Zhejiang 4, 325614, CN)
YU, Zhangfa (No. 160, Yangqingxiang Chengguan, Zhugang Town, Yuhuan Count, Taizhou Zhejiang 0, 317600, CN)
Application Number:
CN2018/111851
Publication Date:
May 02, 2019
Filing Date:
October 25, 2018
Export Citation:
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Assignee:
ZHOU, Qingnian (No. 37, Xialingyan Road Yandang Town, Yueqing Cit, Wenzhou Zhejiang 4, 325614, CN)
YU, Zhangfa (No. 160, Yangqingxiang Chengguan, Zhugang Town, Yuhuan Count, Taizhou Zhejiang 0, 317600, CN)
International Classes:
F16L21/03
Foreign References:
CN208311707U2019-01-01
CN205136880U2016-04-06
CN201621393U2010-11-03
AU2014201808B22016-02-04
Attorney, Agent or Firm:
GE CHENG & CO., LTD. (CHENG, David W.Level 19,Tower E3, The Towers, Oriental Plaza, No.1, East Chang An Avenue, Dongcheng District, Beijing 8, 100738, CN)
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