Patent ID: 7178837

Claim:
A piping joint structure, comprising: a first piping member having a male joint; a second piping member having a female joint; and a joint member including a body unit with an approximate cylinder shape and a plurality of engagement units, which are disposed at an axial end of the body unit and protrude to a side of a central axis of the body unit, the engagement units being elastic at least in a protruding direction thereof, wherein: the body unit of the joint member has a plurality of slot portions, each of which has an opening at the axial end of the body unit and approximately axially extends to a part of the body unit, the slot portions being uniformly arranged at the body unit with respect to a circumference direction thereof and having the openings disposed where the engagement units are not arranged; the body unit of the joint member has two diametrical ends, at least one of which is divided into two separate portions capable of being disengageably connected with each other; the joint member hoops an outer surface of the second piping member; and the male joint of the first piping member is inserted into the female joint of the second piping member by a one-touch operation of diameter-enlarging and diameter-shortening of the engagement units.