Title:
配管接続構造及び接続部材
Document Type and Number:
Japanese Patent JP7181581
Kind Code:
B2
Abstract:
To provide a piping connection structure having sealing performance and capable of suppressing insertion load and pull-out load in connection of piping, and a connection member used in the same.SOLUTION: In a piping connection structure for connecting first piping 1 and second piping 2 opposed to each other through a connection member 3 in a state of axially separating from each other in a through hole 10 of a wall body 101, the connection member is a cylindrical body having a first holding portion 30, a second holding portion 40, and a joint portion 50. An inner peripheral surface 40a of the second holding portion has a lip formation region A provided with an annular lip portion 42 kept into contact with an outer peripheral surface 2aa of the second piping, a reinforcement ring 4 for reinforcing fitting to the second piping is housed in a recessed portion 41, a bottom portion 41b has a contact portion 41ba kept into contact with an inner peripheral surface 4a of the reinforcement ring, the contact portion is formed at a position corresponding to a region of a connection portion side 42a of the lip portion, and a recessed portion 41c is formed at a position corresponding to a region of an anti-joint portion side 42b of the lip portion.SELECTED DRAWING: Figure 1
Inventors:
Keita Yamamoto
Takeshi Tanaka
Ryusuke Baba
Takeshi Tanaka
Ryusuke Baba
Application Number:
JP2018170567A
Publication Date:
December 01, 2022
Filing Date:
September 12, 2018
Export Citation:
Assignee:
Uchiyama Industry Co., Ltd.
International Classes:
F16L5/00; F16L5/10
Domestic Patent References:
| JP2015227701A | ||||
| JP2014060844A | ||||
| JP2012191822A | ||||
| JP2003130226A | ||||
| JP50100457A | ||||
| JP10030756A |
Attorney, Agent or Firm:
Kyomyung International Patent Attorneys Corporation