A novel filter equipment for drainage system

The utility model discloses a novel filter equipment for drainage system, drainage system include grille cover and the drainage piece that has the passageway, and the surface of passageway is equipped with square arch, filter equipment is arranged in the following of grille cover and installs the drainage piece, and it is including the support side band that closes the ring frame frame, filters the piece and support the tar washing oil, closing ring frame and erectting between the lower surface and square bellied upper surface of arranging the grille cover in, the inside of closing the ring frame frame is equipped with the rectangle opening, the inside of filtration piece is equipped with the sewage passageway of collecting the tar washing oil, and its upper portion edge is equipped with the annular mouth that the joint closed the ring frame frame, support side band local ring filters the piece around connecting, and its one end is equipped with the annular ring that is used for promoting filter equipment, and the annular ring lies in the following of grille cover and provides in the rectangle opening, it is the cross setting in the bottom of sewage passageway to support the side band. The utility model discloses the tar washing oil in the rainwater, convenient practicality can be filtered in simple structure, easily loading and unloading betterly.