Sponge city roof garden water storage and drainage device

Abstract

The invention discloses a sponge city roof garden water storage and drainage device. The device comprises a shell, wherein a planting groove is formed in the upper end of the shell, a water storage cavity is formed in the inner bottom of the planting groove, a filtering layer is arranged on the inner top of the water storage cavity, a rectangular groove is formed in the upper end of the shell, a first net plate is arranged at a groove opening of the rectangular groove, the rectangular groove is located in the left side of the planting groove, a reciprocating cavity is formed in the shell, and is located in the left side of the water storage cavity, a sewage pipe is arranged in the shell, and a power source is arranged in the shell. In the use process of the device, when the rain potential is small, water can be automatically stored, when the rain potential is large, water storage is slow, redundant rainwater can be drained, when the rain potential is large, a pipeline cannot meet the drainage requirement, active drainage is carried out, the phenomenon that too much water is gathered is avoided, garbage at the groove opening of the rectangular groove can be removed, and the groove opening is prevented from being blocked.

Description

technical field [0001] The invention relates to the technical field of sponge cities, in particular to a water storage and drainage device for roof gardens of sponge cities. Background technique [0002] The sponge city is also known as a water elastic city. When it rains, it absorbs, stores, infiltrates, and purifies rainwater. When needed, it releases and uses the stored water to realize the free migration of rainwater in the city. Because the roof garden can It plays a good role in water storage and rainwater utilization, and has been widely used in the construction of sponge cities. However, the existing roof gardens still have the following problems: [0003] In the actual use of existing roof gardens, water can be stored when the rain is small. Due to subsequent irrigation, when the rain is heavy and the soil absorbs water to a saturated state, excess water will accumulate in the soil, which is easy to Cause the roots of the plants to rot and cause death, and the soil...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to solve the shortcomings in the prior art, and propose a water storage and drainage device for the roof garden of the sponge city. During use, the device can automatically store water when the rain is small, and it can automatically store water when the rain is relatively small. When the large water storage is slow, the excess rainwater will be discharged. When the rain is too heavy, the pipeline will not meet the drainage requirements, so as to avoid excessive water accumulation and clean up the garbage at the opening of the rectangular slot. Avoid slot clogging

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