DEVICE FOR SETTLING DOWN PAPER DRAIN BOARD FOR IMPROVEMENT THE WEAK GROUND

摘要

An apparatus for settling down a paper drain board for improving a weak ground is provided to concretely fix a front end portion of the paper drain board into the underground, thereby preventing a fixing device from being lifted together with a drain casing when the drain casing is lifted. An apparatus for settling down a paper drain board for compensating a weak ground includes a main plate(1), at least two hinges(2), and a wing plate(3). The main plate(1) is horizontal, and has a rectangular plate. The hinges(2) are mounted on at least two edges of the main plate(1) while facing to each other. The wing plate(3) is coupled to a moving member of the hinge(2), so that the wing plate(3) is spread at an angle greater than a certain obtuse angle when mounted on the underground in a state in which the wing plate(3) is spread at the obtuse angle. The hinge(2) includes a stopper restricting a rotation range of the wing plate(3) with respect to folding and spreading directions of the wing plate(3).