CN220666442U

CN220666442U - Gravel grading sponge rainwater buffer pool

Info

Publication number: CN220666442U
Application number: CN202322251294.2U
Authority: CN
Inventors: 赵仁川; 陈安妮
Original assignee: Wanyuan Ecological Stock Co ltd
Current assignee: Wanyuan Ecological Stock Co ltd
Priority date: 2023-08-22
Filing date: 2023-08-22
Publication date: 2024-03-26
Anticipated expiration: 2033-08-22

Abstract

The utility model provides a sand-stone graded sponge rainwater buffer pool, and belongs to the technical field of urban rainwater treatment. The rainwater collecting tank solves the problems that the existing rainwater collecting tank collects multiple rainwater through pipelines and then intensively discharges the rainwater downwards, and the rainwater is not discharged when the rainfall is large. This grit gradation sponge rainwater buffer pool, including braced skeleton and multistage gravel layer, detachable is with the fine non-woven fabrics of permeability on the braced skeleton, multistage gravel layer sets up in braced skeleton and from top to bottom sets gradually the rock type of three kinds of particle size differences of coarse gravel, well gravel and grit, and the rainwater is through multistage gravel layer buffering filtration back, in penetrating into the underground soil gradually through the non-woven fabrics. The utility model has the following advantages: the water can be distributed and collected on site without adopting a pipeline, so that the drainage pressure is reduced; the multistage gravel layer plays a great role in buffering rainwater, and part of impurities can be filtered; low cost and good ecology.

Description

Gravel grading sponge rainwater buffer pool

Technical Field

The utility model belongs to the technical field of urban rainwater treatment, relates to a rainwater buffer pool, and in particular relates to a sand stone grading sponge rainwater buffer pool.

Background

At present, the drainage system in China mainly uses pipeline drainage, and a plurality of rainwater is collected to one place through a pipeline and then is intensively drained. However, since a large amount of natural ground in the city is replaced by the hardened surface, the ground water seepage and permeability is weakened, the surface runoff is increased and collected rapidly in heavy rainy days with large rainfall, and at the moment, the drainage pressure of the pipeline drainage is large and the drainage efficiency is low, so that flood disasters are easy to form. In addition, most of common rainwater collecting tanks are of reinforced concrete structures, so that the cost is high, the ecology is poor, and the environmental damage is large.

Disclosure of Invention

The utility model aims to solve the problems in the prior art and provides a sand-stone graded sponge rainwater buffer pool.

The aim of the utility model can be achieved by the following technical scheme: the sand grading sponge rainwater buffering pool comprises a supporting framework and a multistage sand layer, wherein the supporting framework is in a cube formed by twelve sides, non-woven fabrics with good permeability are attached to all five surfaces except the top surface of the supporting framework, and the non-woven fabrics are detachably fixed on the supporting framework; the multistage gravel layer is arranged in the supporting framework, comprises three rock types with different particle sizes, namely coarse gravel, medium gravel and sand, and is arranged in a way that the particle sizes of the rock particles are gradually reduced from top to bottom; the supporting framework and the multistage gravel layer are arranged below the ground surface, and the multistage gravel layer gradually permeates collected rainwater into underground soil through the non-woven fabrics.

In the gravel grading sponge rainwater buffering pool, the rainwater buffering Chi Changkuan formed by the supporting framework and the multistage gravel layers is 10-100 meters, and the depth is 2-10 meters.

In the gravel grading sponge rainwater buffer tank, a separation layer is arranged inside the multistage gravel layer, and the separation layer sequentially comprises a first-stage separation net and a second-stage separation net from top to bottom.

In the gravel graded sponge rainwater buffer tank, the first-stage separation net is positioned between the coarse gravel and the medium gravel, and the second-stage separation net is positioned between the medium gravel and the sand.

In the gravel grading sponge rainwater buffer tank, plants are planted above the coarse gravel.

Compared with the prior art, the sand grading sponge rainwater buffer pool provided by the utility model has the following advantages: 1. the concentrated treatment of pipeline drainage is not needed, the rainwater can be collected on site in a multipoint dispersed arrangement mode, and the drainage pressure is reduced;

2. the multistage sand stone structure can play a great role in buffering rainwater, and meanwhile, partial impurities wrapped by the rainwater can be filtered out, so that the integration of functions of water absorption, water storage, water seepage, water purification and the like is realized, and the multistage sand stone structure has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like a sponge;

3. the utility model has low production and installation cost and good ecology.

Drawings

FIG. 1 is a schematic diagram of a supporting framework structure of the sand grading sponge rainwater buffering pool;

FIG. 2 is a schematic cross-sectional view of the sand grading sponge rainwater buffer tank;

fig. 3 is an enlarged view of the structure in circle a in fig. 2.

In the above figures, 10, a support skeleton; 101. a nonwoven fabric; 11. a separation layer; 111. a first level separation net; 112. a secondary separation net; 12. a plant; 13. a multi-stage gravel layer; 131. coarse gravel; 132. a medium gravel; 133. sand stone; 21. ground surface; 22. underground soil.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 to 3, the sand grading sponge rainwater buffering pool comprises a supporting framework 10 and a multi-stage sand layer 13, wherein the multi-stage sand layer is arranged in the supporting framework 10. In the practical application scene, the supporting framework 10 and the multi-layer gravel layer are arranged below the ground surface 21, the buffer Chi Changkuan formed by the supporting framework 10 and the multi-layer gravel layer is 10-100 meters, the depth is 2-10 meters, and the supporting framework is distributed at multiple points in the city, so that rainwater is not required to be intensively treated in a pipeline drainage mode, and the urban drainage pressure is reduced.

As shown in fig. 1, the supporting frame 10 is a cube structure with twelve edges connected end to end, and the cube formed by the supporting frame 10 has non-woven fabrics 101 attached to the five surfaces except the top surface, forming a downward concave box shape. The non-woven fabric 101 has the characteristics of flexibility, thinness, good permeability, recycling and the like, and rainwater can gradually permeate into the underground soil 22 through the non-woven fabric 101 after entering the buffer pool. The non-woven fabric 101 is detachably fixed on the supporting framework 10, so that the non-woven fabric 101 can be conveniently replaced and recycled subsequently.

As shown in fig. 2 to 3, the multi-stage gravel layer 13 is composed of three kinds of rock having different particle sizes, which are arranged in this order from top to bottom as coarse gravel 131, medium gravel 132, and sand 133, and the rock particle sizes are gradually reduced from top to bottom. When rainwater flows into the buffer pool, the multistage gravel layer 13 can not only release pressure in a grading way to slow down the impulse of the rainwater, but also play a role in filtering out the impurities wrapped in the rainwater, the rainwater is accumulated in the buffer pool, and the rainwater is gradually and externally oozed and back-fed to the underground soil 22 through the non-woven fabrics 101 at the outer side of the multistage gravel layer 13, so that the ecological cycle of the rainwater in the natural environment is realized.

The sand-stone graded sponge rainwater buffer pool realizes the integration of functions of water absorption, water storage, water seepage, water purification and the like, and has good elasticity in the aspects of adapting to environmental changes, coping with natural disasters and the like.

Further, as shown in fig. 1 to 2, the multi-stage gravel layer 13 is internally provided with a separation layer 11, and the separation layer 11 has a void structure and does not block rainwater infiltration. The separation layer 11 is a first separation net 111 between the coarse gravel 131 and the medium gravel 132, and a second separation net 112 between the medium gravel 132 and the sand 133, in this order from top to bottom.

Since the rock particle size is gradually reduced from top to bottom, the situation that coarse gravel 131, medium gravel 132 and sand 133 are mixed with each other does not occur in the process of installing the buffer pool and during the use, but impurities remained after filtration are deposited after the buffer pool is used for a period of time, and the impurities are required to be cleaned or replaced periodically, so that the separation layer 11 is convenient for the staged extraction of the multistage gravel layer 13 during the cleaning and replacement.

Further, the plants 12 are planted above the coarse gravel 131 in the buffer pool, the plants 12 are located above the ground surface 21, the ecological and attractive effects are achieved, and the root systems of the plants 12 can well fix rock particles in the multistage gravel layer 13, so that the rock particles are prevented from being washed away and lost by surface runoff formed by rainwater.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although various terms are used more herein, the use of other terms is not precluded. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

Claims

1. The sand grading sponge rainwater buffering pool comprises a supporting framework (10) and a multistage gravel layer (13), and is characterized in that the supporting framework (10) is a cube formed by twelve sides together, non-woven fabrics (101) with good permeability are attached to all five surfaces except the top surface of the supporting framework (10), and the non-woven fabrics (101) are detachably fixed on the supporting framework (10); the multistage gravel layer (13) is arranged in the supporting framework (10), the multistage gravel layer (13) comprises three rock types with different particle sizes of coarse gravel (131), medium gravel (132) and sand stone (133), and the particle sizes of the multistage gravel layer (13) are gradually reduced from top to bottom; the supporting framework (10) and the multistage gravel layer (13) are arranged below the ground surface (21), and the multistage gravel layer (13) gradually permeates collected rainwater into underground soil (22) through the non-woven fabric (101).

2. A sand grading sponge rainwater buffer pool according to claim 1 wherein the rainwater buffer Chi Changkuan formed by the supporting framework (10) and the multistage gravel layer (13) is 10-100 m in depth of 2-10 m.

3. The sand grading sponge rainwater buffer tank as claimed in claim 1, wherein a separation layer (11) is arranged inside the multistage sand layer (13), and the separation layer (11) is sequentially provided with a primary separation net (111) and a secondary separation net (112) from top to bottom.

4. A sand graded sponge rainwater buffer tank as claimed in claim 3 wherein the primary separation screen (111) is located between coarse (131) and medium (132) gravel and the secondary separation screen (112) is located between medium (132) and sand (133).

5. A sand graded sponge rainwater buffer tank as claimed in claim 1 wherein plants (12) are planted above the coarse gravel (131).