PIPE JOINT

• Main Authors: IIJIMA YOICHI, HASHIOKA YOSHIO, KAWASAKI KOICHI
• Format: Patent
• Language: English
• Published: 12.04.2012
• 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

PROBLEM TO BE SOLVED: To provide pipe joint having a simple inner structure, allowing connection of a resin pipe to be easily perceptually checked, and allowing the resin pipe to be inserted up to a predetermined connection state and tightly connected without impairing the sealing capacity after connection of the resin pipe.SOLUTION: The pipe joint is connected a resin pipe 2 to be inserted into a gap G between an inner cylinder 3 and an outer cylinder 4 provided in a joint body 5 in a pull-out prevention state with a lock ring 7, and is hermetically connected the resin pipe 2 by a sealing member 8 attached to an outer peripheral surface 3a of the inner cylinder 3. In the pipe joint, an insertion guide 10 for guiding the resin pipe 2 is attached between the inner cylinder 3 and the outer cylinder 4, a plurality of elastic tongue pieces 35 are provided on an outer periphery of the insertion guide 10, an outer diameter of the elastic tongue pieces 35 is set to be larger than an inner diameter of the outer cylinder 4, and a concave recess 20 for generating sound/vibration with the elastic tongue pieces 35 is formed in a deep part of inner diameter of the outer cylinder 4.