Separation preventing device of fluid pipe, and pipe joint

A separation preventing device that prevents separation of a fluid pipe in a pipe axis direction, the separation preventing device comprising:

• a main body member that is externally fitted to an outer peripheral surface of the fluid pipe and has a recess portion facing the outer peripheral surface;
• a locking member that is housed in the recess portion in a tiltable manner and is able to bite into the outer peripheral surface of the fluid pipe;
• a pressing member that is provided in the main body member and presses the locking member so as to bite into the outer peripheral surface of the fluid pipe;
• and
• an interposition member interposed between the locking member and the pressing member,
• wherein the pressing member is configured to press a center portion in the circumferential direction of the locking member;
• the interposition member is equipped with a tapered surface coming into contact with an outer surface of the locking member, and is housed in the recess portion in a state of having an acceptable movement and tilting value in the pipe axis direction of the fluid pipe;
• and a gap portion which permits movement and tilting of the locking member is formed between an end surface on a rear side of the center portion of the locking member and a side wall surface of the recess portion.