The mediating/helping equipment it is done with the primary covering works

摘要

PROBLEM TO BE SOLVED: To provide a fitting structure that mounts easily a relief valve on a water stop sheet without diminishing a water stopping efficiency. SOLUTION: An end side of a cylindrical member 4b of a first board-shaped member 4, which is provided with the cylindrical member 4b having a through hole 4a and an external threaded part, is inserted through a hole 1a that is bored at a suitable position of a water stop sheet 1, furthermore, the end side of the cylindrical member 4b is inserted through a through hole 5a of a second board-shaped member 5 to be projected from the member 5, and a nut member 8 is screwed on a projecting end of the cylindrical member 4b with a first and a second water stop members 6 and 7 between the first board-shaped members 4 and the water stop sheet 1 so that the water stop sheet 1 is nipped and hold by the first and the second board-shaped member 4 and 5 with the first and the second water stop members 6 and 7. Furthermore, the projecting end of the cylindrical member 4b is mounted with a connection member 9 and the end side is mounted with a relief valve. Then, the relief valve is mounted easily even at a site work, and water stopping efficiency of the connection part is obtained at the time of controlling a water pressure applied to the sheet by opening and shutting the relief valve.