| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe connection device capable of connecting a branch pipe to a connection part in a water tight manner.SOLUTION: A cylindrical body 17 includes an annular pressing part 17a that presses a water stop member 23 toward the inside of a connection part 15 when interposed between a perforator 16 and an engagement part 15a. The connection part 15 includes an annular taper part 15g inclined so as to gradually contract a diameter inward from an outside end 15c of the connection part 15. The water stop member 23 pressed by the pressing part 17a is pressed toward a pipe axis of the connection pipe 15 by the taper part 15g, and elastically deformed, and whereby the cylinder 17 is arranged on the tube axis substantially coaxial with the connection part 15.SELECTED DRAWING: Figure 1 |
