DRAINAGE SYSTEM FOR DRAINING RAINWATER FLOWING INTO BUILDING UNDER CONSTRUCTION

摘要

PROBLEM TO BE SOLVED: To provide a structurally simple drainage system which can be inexpensively manufactured and can gravitationally drain rainwater flowing into a building under construction.;SOLUTION: A bolt 43 is screwed into a nut 44 which is inserted at the placing of a slab, so that slide rails 31 and 32 of a first drainage unit 21 can be mounted on the side of an undersurface of a temporary opening 3e, which is formed in a floor slab 3c on a selected water sealing floor, in parallel with each other in such a manner as to face each other. A water receiving tank 22 is mounted in a state in which sliding parts 24 and 24 are slidably supported on the slide rails 31 and 32. The mounting of a bolt 37 prevents the disconnection of the tank 22. The tank 22 can be moved between a water receiving position below the temporary opening 3e and a receding position to recede from below. A second drainage unit 51 is equipped with a mounting plate 52 which is mounted in an opening 3f for piping and bonded to the top surface of the slab, and a hose connecting pipe which is mounted on the mounting plate 52 so as to be inserted into the opening 3f.;COPYRIGHT: (C)2004,JPO