Ecological retention zone applied to urban road

The utility model discloses an ecological detention belt applied to urban roads, which belongs to the technical field of sponge city construction and comprises an ecological detention box shell, a drainage groove is arranged on one side of the ecological detention box shell, two sliding grooves are arranged on the ecological detention box shell, two sides of the sliding grooves are communicated with two sides of the drainage groove, a filter frame is arranged in the drainage groove, and a filter screen is arranged on the filter frame. Sliding rods are fixedly connected to the two sides of the filter frame, a filter screen is fixedly connected to the inner side of the filter frame, the sliding rods are in sliding connection with the sliding grooves, limiting grooves are formed in one sides of the sliding rods, pulling plates are arranged on the two sides of the ecological detention box shell, and channels allowing the pulling plates to slide are formed in the two sides of the ecological detention box shell. Th