Low elevation greenbelt

Abstract

The invention discloses a low elevation greenbelt. The low elevation greenbelt comprises a covering layer and a rainwater collection tank arranged below the covering layer, and further comprises an overflow well, wherein the overflow well comprises an upper well body and a lower well body, the lower well body is communicated with the upper end of the rainwater collection tank, and the upper well body penetrates the covering layer; an outer cylinder, ascending parts and an inner cylinder are arranged on the interior of the upper well body in a sleeving mode from outside to inside in sequence, the outer cylinder is connected to the inner wall of the upper well body, the lower end of the outer cylinder is connected with that of the inner cylinder through a bottom plate, and a containing cavity is formed in the area among the outer cylinder, the inner cylinder and the bottom plate; the peripheral surfaces of the upper well body and the ascending parts are of a porous structure; a plurality of floating bodies are connected to the peripheral outer walls of the ascending parts. According to the low elevation greenbelt, the purpose is to solve the technical problem that rainwater collection is difficult as the wellhead of the overflow well in the low elevation greenbelt is likely to be blocked by pollutants, meanwhile through combination of the low elevation greenbelt and a rainwater regulating storage tank, the rainwater runoff is effectively adjusted, and the functions of rainwater purification, storage and utilization are achieved.

Description

technical field [0001] The invention belongs to the field of sponge city construction, and more specifically relates to a sunken green space. Background technique [0002] In recent years, heavy rain and waterlogging disasters have occurred frequently in cities in my country. Traditional urban roads generally have problems such as serious pollution, loss of rainwater resources, and high flood discharge pressure. Continuous outbreaks of urban waterlogging have caused serious loss of life and property and ecological damage. Sponge city is a new generation of urban stormwater management concept, which means that cities have good "elasticity" in adapting to environmental changes and dealing with natural disasters caused by rainwater. [0003] Rainwater scouring the ground will produce runoff pollution, but the less polluted water can be used as water source for urban greening and road washing after treatment. At present, the rainwater utilization technologies are mainly roof ra...

AI Technical Summary

Problems solved by technology

[0005] In view of the above defects or improvement needs of the prior art, the present invention provides a sunken green space, the purpose of which is to solve the technical problem that the wellhead of the overflow well in the sunken green space is easily blocked by pollutants, resulting in difficulty in collecting rainwater. The sunken green space is combined with the rainwater storage tank to effectively regulate the rainwater runoff and realize the functions of rainwater purification, storage and utilization

Images