PIPE JOINT STRUCTURE

To deal with various specifications of an opposite side pipe body easily in a pipe joint structure which connects a regeneration pipe covered by a liner pipe with another pipe body.SOLUTION: A pipe joint structure includes: an existing pipe 1; a liner pipe 2 including a cover part 2a which covers an...

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Bibliographic Details
Main Authors SHIMOMURA JUN, YAMAMURO SHIGEKI
Format Patent
LanguageEnglish
Japanese
Published 10.08.2022
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Summary:To deal with various specifications of an opposite side pipe body easily in a pipe joint structure which connects a regeneration pipe covered by a liner pipe with another pipe body.SOLUTION: A pipe joint structure includes: an existing pipe 1; a liner pipe 2 including a cover part 2a which covers an inner surface of the existing pipe 1 and a liner protruding part 2b protruding from one end as seen in a pipe axis direction of the existing pipe 1 in a continuous manner; a guide member 3 disposed at the outer side of the liner protruding part 2b; a connection jig 4 including an inner part 4a which enters the inner side of the liner protruding part 2b and an outer part 4b protruding from the inner part 4a to one side in the pipe axis direction; an outer member 5 including a base part 5a which contacts with an outer surface 2c of the liner protruding part 2b; a taper part 12 which is provided in at least one of an outer surface 4c of the inner part 4a and an inner surface 5d of the outer member 5 and has a diameter expanding to the one side in the pipe axis direction; and fastening means 20 which draws the connection jig 4 and the outer member 5 in the pipe axis direction and fixes the connection jig 4, the liner protruding part 2b, and the outer member 5.SELECTED DRAWING: Figure 1 【課題】ライナ管で被覆された更生管を別の管体に接続する管継手構造において、相手方の管体の様々な仕様に容易に対応する。【解決手段】既設管1と、既設管1の内面を被覆する被覆部2aと既設管1の管軸方向一方の端部から突出するライナ突出部2bとを連続して備えるライナ管2と、ライナ突出部2bの外側に配置されるガイド部材3と、ライナ突出部2bの内側に入り込むインナ部4aとインナ部4aから管軸方向一方へ突出する外方部4bとを備える接続治具4と、ライナ突出部2bの外面2cに接する基部5aを備えるアウタ部材5と、インナ部4aの外面4cとアウタ部材5の内面5dの少なくとも一方に設けられ管軸方向一方へ向かって拡径するテーパ部12と、接続治具4とアウタ部材5とを管軸方向へ引き寄せて接続治具4、ライナ突出部2b及びアウタ部材5を固定する締付手段20とを備える管継手構造とした。【選択図】図1
Bibliography:Application Number: JP20210013088