A step block for collecting and utilizing rainwater

Abstract

The invention relates to a stepped block for collecting and utilizing rainwater. The stepped block includes a water-permeable surface layer, a connecting layer, a first purification layer, a water-holding layer, a second purification layer, and a water storage space arranged sequentially from top to bottom. cavity, the bottom of the water-holding layer is provided with a water inlet pipe communicating with the water storage cavity, and the bottom of the water storage cavity is provided with a water outlet pipe, and the water outlet pipe in the upper step block is connected to the next step The water inlet pipes in the stepped blocks are connected. The invention utilizes the special structure of the step block and utilizes the gravity drop between the steps to purify, collect and utilize rainwater and store a small part of rainwater in the step block, which not only meets the needs of water for greening, but also It can keep the steps moist in dry weather and alleviate the heat island effect. Simultaneously, the stepped block of the present invention is easy to industrialized production, has high on-site paving efficiency, and is extremely simple to implement.

Description

technical field [0001] The invention relates to a stepped block, in particular to a stepped block for collecting and utilizing rainwater. Background technique [0002] With the development of the city, more and more surface buildings and various hardened pavements are covered, which seriously damages the natural water cycle. On the one hand, the surface is prone to water accumulation and high-peak runoff, which increases flood control after being discharged into the river. On the other hand, in today's increasingly tense water resources, the rainwater discharged into the river flows downstream along the river, which is not well used effectively, resulting in a waste of water resources. [0003] Utilization of rainwater, as a measure of increasing revenue and saving water, is an important measure to alleviate or solve the above water problems. However, in recent years, the deterioration of urban water quality has occurred from time to time. During the rainfall process, a lar...

AI Technical Summary

Problems solved by technology

[0004] Our country has conducted a lot of research and practice on rainwater utilization, and achieved certain results, but the steps that can be seen everywhere in life have not been effectively used for rainwater treatment.

In rainy days, since the drains are generally set on both sides of the square or the road, there are usually few on the steps, which will cause rainwater to accumulate on the steps and cause certain troubles to pedestrians.

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