| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe connecting structure capable of easily connecting and disconnecting a pair of cylindrical pipes by engaging an engagement projection with a corresponding engagement hole and capable of effectively avoiding a damage to the engagement projection. SOLUTION: An end 13 of one cylindrical pipe 11 is inserted into an end 14 of the other cylindrical pipe 14, and a male side projection engagement hole 15 and a female side projection engagement hole 16 are made to correspond to each other, and an engagement projection 17 of a sleeve member 19 is locked with corresponding engagement holes 15 and 16 to connect the pair of cylindrical pipe 11 and 12 for unifying. In this connecting structure 10, diameter of the sleeve member 19 can be enlarged at a cut part 18 formed over the whole length thereof in the axial direction X. One edge part 20 formed along the cut part 18 covers the other edge part 21 to form an overlap part 22, and when the one edge part 20 is slid for movement in the circumferential direction and an end surface 23 thereof abuts on an end surface 24 of the other edge part 21 for lock, the engagement projection 17 is removed from the male side projection engagement hole 15.
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