| 摘要 |
A draw-out opening and closing type leaking water pollution prevention device of a bridge is provided to prevent the pollution of a river by closing up a water inflow hole of a fixed cover with a closure projection of a movable cover simply and preventing an inflow of polluted rainwater or oil toward a catch basin. A draw-out opening and closing type leaking water pollution prevention device of a bridge comprises an upper water collecting body(10) connected to a lower water collecting body(12) by a drainpipe and provided with a cover supporting projection(14), a fixed cover(20) mounted to the cover supporting projection of the upper water collecting body and provided with many water inflow holes(22) formed on two sides of a draw-out bar groove(24a), a movable cover(30) hinged to be movable toward the lower part of the fixed cover and provided with many closure projections(32) to close up the water inflow holes of the fixed cover tightly, and a draw-out bar(40) composed of a lower bar hinged to the movable cover and an upper bar hinged to the lower bar rotatively and projected or retreated through the draw-out bar groove. |
