Overpass rainwater collecting system

Abstract

The invention discloses an overpass rainwater collecting system, and relates to the technical field of landscape design. The overpass rainwater collecting system solves the problem that rainwater is disadvantageous for watering of green belts under an overpass body due to the fact that the collected rainwater on the overpass body contains a lot of harmful substances. The overpass rainwater collecting system includes a drain pipe disposed on the overpass body, and a water collecting tank for collecting the rainwater is connected to the drain pipe; a planting plate is arranged in the water collecting tank in a sliding mode, and aquatic plant groups are grown on the planting plate; the planting plate is further arranged on the water surface in the water collecting tank in a floating mode, andthe roots of the aquatic plant groups are located in the rainwater collected by the water collecting tank; a spillway hole is formed in the side, close to the planting plate, of the water collectingtank, and a water pump and a watering pipe communicating with the water pump are arranged at the bottom of the water collecting tank; and a filtering device for filtering impurity particles in the water is further disposed on the drain pipe. The rainwater collected by the overpass rainwater collecting system has low content of overall harmful substances, and a good watering effect on the green belts under the overpass body is facilitated.

Description

technical field [0001] The invention relates to the technical field of landscape design, more specifically, it relates to a viaduct rainwater collection system. Background technique [0002] There is generally a green belt under the bridge body of the urban viaduct, but due to the obstruction of the bridge deck, the rainwater on the bridge directly flows into the rainwater pipe through the downpipe, and cannot drip into the green belt under the bridge. If the rainwater on the bridge is collected and used Watering the greenery under the bridge can not only save water for greening, but also save manpower and material resources. [0003] In the Chinese invention application document with the publication number CN106400886A, a self-flowing rainwater collection and irrigation system for the green belt under the viaduct bridge body is disclosed, which includes a surface runoff collection device and a viaduct bridge body drainage collection device. The surface runoff collection dev...

AI Technical Summary

Problems solved by technology

[0005] In view of the problem in the prior art that the collected rainwater on the viaduct bridge body contains more harmful substances, which is not conducive to watering the green belt under the viaduct bridge body, the purpose of the present invention is to provide a viaduct rainwater The collection system solves the above-mentioned technical problems by planting aquatic plants on the water surface of the water collection tank. The overall content of harmful substances in the collected rainwater is low, which is conducive to a good watering effect on the green belt under the viaduct bridge body

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