Garden drainage system for sponge city

Abstract

The invention discloses a garden drainage system for a sponge city. The garden drainage system comprises a water storage tank buried in a soil layer, a bearing net is fixed at the upper end of the water storage tank, a gravel layer is paved at the upper end of the bearing net, a planting layer is paved at the upper end of the gravel layer, a water intake pipe communicating with the water storage tank is inserted into the upper end of the planting layer in a penetrating mode, a water pump is fixed at the upper end of the water intake pipe, and a nozzle is fixed in the water outlet in the upperend of the water pump. The garden drainage system has the advantages that, when the rainfall is higher, the rainwater quickly accumulates in a drainage box, a floating plate moves upwards under the effect of buoyancy accordingly, a though groove is closed accordingly, and the rainwater no longer enters the water storage tank and is directly discharged to an urban sewage pipe through a drainage pipe, so that when the rainfall is higher, the water storage tank cannot be quickly filled by the road rainwater, the water storage tank can retain a larger space so that timely seepage of the planting layer is ensured, and soil and water loss due to the delayed seepage of the submerged planting layer when the rainfall is higher is avoided.

Description

technical field [0001] The invention relates to the technical field of sponge cities, in particular to a garden drainage system for sponge cities. Background technique [0002] Sponge city is a new generation of urban stormwater management concept, which means that the city can be like a sponge, with good flexibility in adapting to environmental changes and dealing with natural disasters caused by rain; urban gardens can increase urban greening and make the city more At the same time, the construction of gardens can avoid soil erosion and play an important role in the construction of sponge cities; [0003] With the increase of greening, the construction of gardens is also spread in every corner of the city. At present, the irrigation of gardens still relies heavily on tap water, so that rainwater resources are not used. Due to the weak water seepage capacity of the garden planting area, the root system of the plant is submerged, resulting in the death of the plant. When th...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of unreasonable urban garden drainage in the prior art, and propose a kind of sponge city garden drainage system

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