| 摘要 |
PROBLEM TO BE SOLVED: To provide a pipe lining device capable of lining the internal surface of a connection part between a main pipe and a branch pipe provided in a building without cutting and separating the connection part and from the outside of the room so that the construction work is completed efficiently in a short time at an advantageous cost.SOLUTION: When a negative pressure is applied to an inside of a branch pipe 3 by inserting a long cylinder portion 12 of a connection part coating tool 11 into a main pipe 2, a suction pressure is applied to the inside of the long cylinder portion, and an intake air stream generated by the negative pressure of the branch pipe 3 flows along the inside of a projection portion 14 in the long cylinder portion 12. A lining layer 17 is formed when a coating material R is scattered from a discharge opening 12c through a discharge hole 14h and applied on the inner surface 10a of an arched pipe 10. Thus, this pipe lining device is capable of forming the lining layer 17 on the inner surface 10a of the arched pipe 10 without cutting and separating the connection part 7 between the main pipe 2 and the branch pipe 3 from the outside of the room. |
