PIPE JOINT STRUCTURE

• Main Authors: SHIMOMURA JUN, YAMAMURO SHIGEKI
• Format: Patent
• Language: English; Japanese
• Published: 10.08.2022
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; JOINTS OR FITTINGS FOR PIPES; LIGHTING; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

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