| 摘要 |
A device for collecting and discharging solid particles carried by flowing water, and incorporating a grid structure (15) of stationary and displaceable bars (17, 18), the edges of said bars facing the water flow direction being step-formed, whereby the displaceable bars (18) are interconnected to form at least one unit, which is actuable by means of a driving mechanism (12), which gives the displaceable rods (18) a closed motion path mainly in the place of the rods, the upwards motion component of which is somewhat bigger than the step height of the stationary rods (17). The object of the present invention is to provide a device of the type mentioned in the introduction, which has no displaceable parts below the water level, beside the displaceable rods, which laterally does not leave any open spaces where the water can flow by, and a structural design of the grid whereby this is self-rinsing. The construction furthermore shall be simple, easy to assemble and dismount and almost completely maintenance free. These objects have been solved that the unit of displaceable rods (18) is limited by side plates (36), which are arranged substantially in parallel to the rods and being fixed to the rods, said side plates forming side protections and limiting the grid laterally, that the driving mechanism (12) is arranged to transfer the motion to the displaceable rods (18) via said side plates and that the stationary and/or the displaceable rods (17, 18) on the side turned away from the step-formed side are provided at least partially with saw teeth (38, 42). |
