Drainage device for highway bridge design

The utility model relates to a drainage device for highway bridge design, which comprises a bridge main body, a cleaning mechanism for centralized treatment is arranged in the bridge main body, a fixing mechanism convenient to open and close is arranged in the cleaning mechanism, and the cleaning mechanism comprises a filter cavity. A collecting shell for collecting sundries is slidably mounted on the left side wall of an inner cavity of the filtering cavity, a filter screen for preventing blockage is rotatably mounted between the front side wall and the rear side wall of an inner cavity of the collecting shell, the right side wall of the inner cavity of the filtering cavity communicates with a drainage channel, and a cover plate is mounted between the front side wall and the rear side wall of the inner cavity of the filtering cavity in an embedded mode. According to the drainage device for highway bridge design, by arranging the cleaning mechanism, the purpose of concentrated cleaning of sundries filtered by