The water catchment doing the plugging up prevention device null ground water of the water catchment tube

摘要

PROBLEM TO BE SOLVED: To provide a clogging prevention device of a water collection pipe in an underground water drainage mechanism capable of preventing the water collection pipe from being clogged in the underground water drainage mechanism for draining underground water.;SOLUTION: This clogging prevention device includes the water collection pipe (2) having many opened water collection holes (4), (4), etc. on its peripheral face buried into the ground and a sediment discharge shaft (10) having a screw blade (12) and inserted into the water collection pipe (2) concentrically and rotatably. In this device, the sediment discharge shaft (10) is rotated by water pressure of the water stream flowing in the water collection pipe, and a deposit floating in the water collection pipe and attempting to adhere to its interior wall and be deposited on it is peeled off and removed by the screw blade (12) and is automatically discharged together with the water stream.;COPYRIGHT: (C)2011,JPO&INPIT