PIPE JOINT MECHANISM AND PIPE JOINT

• Main Authors: NAKATANI YASUTAKA, TASHIRO NAOKI
• Format: Patent
• Language: English; Japanese
• Published: 27.07.2020
• Subjects: BLASTING; CYLINDERS; 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; PISTONS; SEALINGS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

To reduce replacement frequency of a pipe joint, which is connected to a connected member by screwing, and the connected member.SOLUTION: A pipe joint includes: a sleeve being a tubular member and having a through hole forming a passage, a flange part through which the through hole passes, and a protruding part which is provided on a connection end side surface of the flange part so as to protrude and in which the through hole passes and an opening of the through hole is provided at a protruding tip; a fastening member which is a tubular member covering a part of the sleeve from an outer periphery and in which its end at the connection end side has a portion which contacts with a pipeline side surface of the flange part and a screw part for screwing into the connected member is provided at an outer periphery; and a ring shaped gasket which is disposed so as to enclose an outer periphery of the protruding part. Fastening by the fastening member causes the facing surface to press and deform the gasket and thereby achieve a function of a surface seal before the protruding tip of the sleeve contacts with the connected member to achieve a function of a line seal.SELECTED DRAWING: Figure 1 【課題】接続先部材にねじ接合で接続させる配管継手及び接続先部材の交換頻度を低減する。【解決手段】配管継手は、管状部材であって、流路を形成する貫通孔と、前記貫通孔が通るフランジ部と、前記フランジ部の前記接続端の側の面に突出するように設けられ、前記貫通孔が通り突出先端に前記貫通孔の開口が設けられた凸部と、を有するスリーブと、前記スリーブの一部分を外周から覆う管状部材であって、前記接続端の側の端は前記フランジ部の前記配管の側の面と当接する部分を有し、前記接続先部材とねじ接合するためのねじ部が外周に設けられた締め付け部材と、前記凸部の外周を囲むように配置されたリング形状のガスケットと、を備える。前記締め付け部材による締め付けにより、前記スリーブの前記突出先端が前記接続先部材に当接して線シールの機能を発揮する前に、前記ガスケットを前記対向面が押圧して変形させることにより、面シールの機能を発揮させる。【選択図】図１