Pot-like drainer for pedestrian concrete footbridge

摘要

In the present invention, there is disclosed a pot-like drainer for concrete pedestrian footbridge connected to an outlet pipe (5) wherein the pot-like drainer for concrete pedestrian footbridge of the present invention comprises a pot (1) of circular form that is enbedded in a footbridge concrete bridge decking (8). Close to the upper inner edge, said pot (1) is beveled all over the periphery and in its upper section, it is provided with a drainer partition (3). A round cover (4) having its upper surafce in the plane of the bridge decking (8) upper surface is attached from above to the center of the partition (3). The space in the form of annulus formed between the pot (1) inner surface and the round cover (4) peripheral surface (4) forms a drainer inlet. The pot (1) bottom, having its outlet under the concrete brisge decking (8), is formed by mutually coupled a first sheet metal strip (2.1) and a second sheet metal strip (2.2), having the form of elliptical annulus that is inclined at a gradient (10) in the direction from the horizontal plane and having their lower edge connected with the outlet pipe (5). The drainer pot (1) lower section is provided with a collar (9).