Road surface rainwater collecting system

Abstract

The utility model relates to a road surface rainwater collecting system which comprises a roadway, a green belt and a sidewalk, a plurality of perforated curbs are installed at the junction of the roadway and the green belt, an infiltration rainwater well is arranged in the green belt, and a drainage channel is arranged on the side, close to the perforated curbs, of the infiltration rainwater well. A drainage channel communicated with the drainage channel is formed in the perforated curb; gravels are laid in the green belt to form a gravel permeable layer, and infiltration perforated pipes are laid in the gravel permeable layer; a drainage pipe is mounted on one side of the rainwater infiltration well. The road surface rainwater collecting system has the advantages that runoff impact generated in rainy days is achieved through scattered and small-scale source control, a development area is close to natural hydrological cycle as much as possible, and the drainage pressure of municipal rainwater pipelines and the risk of flood generation are reduced; initial rainwater is subjected to infiltration treatment through cooperation of the infiltration gutter inlet and the perforated infiltration pipe, and the problem of natural water pollution caused by direct drainage of the initial rainwater to a water body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water supply and drainage, in particular to a road surface rainwater collection system. Background Art

[0002] The process of urbanization has led to the formation of a large number of impermeable ground in the urban underlying surface, which has seriously changed the natural hydrological mechanism and increased surface runoff. The traditional ditch, culvert, rainwater pipe and rainwater inlet source collection system can no longer meet the actual drainage needs. Therefore, when heavy rain occurs in cities across the country, there is a phenomenon of "seeing the sea" caused by the lack of urgent drainage. At the same time, the runoff generated by the initial rainwater on rainy days washes the roofs, asphalt concrete roads, etc., carrying a large amount of pollutants, which are collected through traditional road rainwater outlets and enter the rainwater pipes and directly discharged into the water body, causing water pollution. Utility Model Content

[0003] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a road rainwater collection system.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A road rainwater collection system comprises a carriageway, a green belt and a sidewalk, wherein the green belt is located between the carriageway and the sidewalk, a plurality of perforated curbstones are installed at the junction of the carriageway and the green belt, an infiltration rainwater well is arranged beside each perforated curbstone in the green belt, and a drainage channel is arranged on the side of the infiltration rainwater well close to the perforated curbstone, and a drainage channel connected to the drainage channel is arranged in the perforated curbstone; gravel is laid between two adjacent infiltration rainwater wells in the green belt to form a gravel infiltration layer, and an infiltration perforated pipe connected to the two adjacent infiltration rainwater wells is laid in the gravel infiltration layer; a drainage pipe connected to a municipal drainage network is installed on one side of the infiltration rainwater well.

[0006] Among them, the infiltration rainwater well includes a concrete base plate, a concrete mounting ring, and a flat-grate single-grate rainwater outlet cover. The concrete base plate is built with lime sand bricks to form a lime sand brick well body. The concrete mounting ring is installed on the top of the lime sand brick well body, and the flat-grate single-grate rainwater outlet cover is inlaid and installed on the top of the concrete mounting ring; the drainage channel is located at the upper part of one side of the lime sand brick well body.

[0007] Among them, the top of the flat-grate single-grate rainwater manhole cover is lower than the top of the roadway, the top of the flat-grate single-grate rainwater manhole cover is lower than the top of the sidewalk, and the top of the flat-grate single-grate rainwater manhole cover is higher than the top of the green belt.

[0008] The drainage channel comprises a water inlet opening toward the roadway, a vertical shaft, and a drainage outlet opening toward the drainage channel, and the water inlet, the vertical shaft, and the drainage outlet are connected in sequence from top to bottom.

[0009] Wherein, the bottom end of the drainage pipe is higher than the top end of the gravel permeable layer.

[0010] Wherein, a layer of permeable geotextile is laid on the top of the gravel penetration layer.

[0011] The top of the gravel permeable layer is 500-700 mm away from the top of the green belt, and the bottom of the gravel permeable layer is 1000-1300 mm away from the top of the green belt.

[0012] Wherein, a plurality of evenly distributed water seepage holes are opened on the pipe wall of the infiltration perforated pipe.

[0013] Wherein, the aperture of the seepage hole is 10 mm, and the particle size of the gravel is greater than 10 mm.

[0014] The beneficial effects of the utility model are as follows: by installing perforated curbstones at the junction of the carriageway and the green belt, and arranging infiltration rainwater wells, gravel infiltration layers, and infiltration perforated pipes in the green belt, the rainwater on the carriageway is discharged into the infiltration rainwater well by utilizing the drainage channel provided in the perforated curbstones, and the rainwater on the sidewalk flows directly into the green belt, and the rainwater entering the green belt infiltrates into the gravel infiltration layer. The gravel infiltration layer and the green belt can store part of the rainwater, and the excess rainwater is discharged into the municipal drainage network through the drainage pipe, and the rainwater stored in the gravel infiltration layer can be used by the growth of plants in the green belt on sunny days; the pavement rainwater collection system achieves the runoff impact generated on rainy days through decentralized, small-scale source control, so that the development area is as close to the natural hydrological cycle as possible, and the drainage pressure of the municipal rainwater pipe and the risk of flooding are reduced; the initial rainwater is infiltrated by the infiltration rainwater outlet and the perforated infiltration pipe, so as to reduce the problem of direct discharge of the initial rainwater into the drainage body and the pollution of natural water bodies. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 It is a structural schematic diagram of the road surface rainwater collection system in the utility model from the first perspective;

[0017] Figure 2 It is a structural schematic diagram of the road surface rainwater collection system of the utility model from a second viewing angle;

[0018] Figure 3It is a structural schematic diagram of the cross section of the middle and lower seepage perforated pipe of the utility model;

[0019] Explanation of the numbers in the figure: carriageway 100, green belt 200, sidewalk 300, perforated curbstone 1, water inlet 11, vertical shaft 12, drain outlet 13, infiltration rainwater well 2, concrete bottom plate 21, lime sand brick well body 22, drainage channel 221, concrete mounting ring 23, flat grate single grate rainwater well cover 24, gravel penetration layer 3, infiltration perforated pipe 4, seepage hole 41, drain pipe 5, permeable geotextile 6. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] like Figures 1 to 3 As shown, a road rainwater collection system includes a carriageway 100, a green belt 200, and a sidewalk 300. The green belt 200 is located between the carriageway 100 and the sidewalk 300. A plurality of perforated curbstones 1 are installed at the junction of the carriageway 100 and the green belt 200.

[0022] In the green belt 200, an infiltration rainwater well 2 is arranged beside each perforated curbstone 1, and a drainage channel 221 is arranged on the side of the infiltration rainwater well 2 close to the perforated curbstone 1. Specifically, the infiltration rainwater well 2 comprises a concrete base plate 21, a concrete mounting ring 23, and a flat grate type single-grate rainwater outlet manhole cover 24. The concrete base plate 21 is built with lime sand bricks to form a lime sand brick manhole body 22. The concrete mounting ring 23 is installed on the top of the lime sand brick manhole body 22. The flat grate type single-grate rainwater outlet manhole cover 24 is inlaid and installed on the top of the concrete mounting ring 23; the drainage channel 221 is located at the upper part of one side of the lime sand brick manhole body 22.

[0023] The top of the flat-grate single-grate rainwater well cover 24 is lower than the top of the roadway 100, the top of the flat-grate single-grate rainwater well cover 24 is lower than the top of the sidewalk 300, and the top of the flat-grate single-grate rainwater well cover 24 is higher than the top of the green belt. Rainwater can be stored in the green belt and gradually infiltrate. When the soil infiltration capacity is saturated and the water level of the green belt rises to the top of the rainwater well, the accumulated water enters the rainwater well and is discharged.

[0024] A drainage channel connected to the drainage channel 221 is provided in the perforated curbstone 1. Specifically, the drainage channel includes a water inlet 11 opening toward the roadway, a vertical shaft 12, and a drainage outlet 13 opening toward the drainage channel. The water inlet 11, the vertical shaft 12, and the drainage outlet 13 are connected in sequence from top to bottom.

[0025] Gravel is laid between two adjacent infiltration rainwater wells 2 in the green belt 200 to form a gravel infiltration layer 3, the top of the gravel infiltration layer 3 is 500-700 mm away from the top of the green belt 200, and the bottom of the gravel infiltration layer 3 is 1000-1300 mm away from the top of the green belt 200.

[0026] A layer of permeable geotextile 6 is laid on the top of the gravel permeable layer 3 to prevent the soil in the green belt from flowing into the gravel permeable layer, thereby ensuring that the gravel permeable layer has good water permeability.

[0027] An infiltration perforated pipe 4 connected to two adjacent infiltration rainwater wells 2 is laid in the gravel permeable layer 3, and a plurality of evenly distributed seepage holes 41 are opened on the pipe wall of the infiltration perforated pipe 4; the aperture of the seepage hole 41 is 10 mm, and the particle size of the gravel is greater than 10 mm.

[0028] A drainage pipe 5 connected to the municipal drainage network is installed on one side of the infiltration rainwater well 2, and the bottom end of the drainage pipe 5 is higher than the top of the gravel permeable layer 3. The infiltration rainwater outlet is connected in series to the municipal rainwater network through the perforated infiltration pipe and the rainwater outlet connecting pipe. In the late rainy day, the soil infiltration capacity is saturated, and the rainwater that cannot infiltrate will be discharged into the municipal rainwater pipe through the series pipes, ensuring that the rainwater on the road and the sidewalk can be drained away in time without affecting the safety of vehicles and pedestrians.

[0029] The road rainwater collection system is simple to construct and made of conventional materials. The cost is not higher than that of the traditional system and subsequent operation is convenient. It can be cleaned by dismantling the top rainwater grate of the infiltration rainwater inlet, which is convenient for maintenance.

[0030] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A road rainwater collection system, characterized in that: It includes a carriageway, a green belt and a sidewalk, wherein the green belt is located between the carriageway and the sidewalk, and a plurality of perforated curbstones are installed at the junction of the carriageway and the green belt, an infiltration rainwater well is arranged beside each perforated curbstone in the green belt, and a drainage channel is arranged on the side of the infiltration rainwater well close to the perforated curbstone, and a drainage channel connected to the drainage channel is opened in the perforated curbstone; gravel is laid between two adjacent infiltration rainwater wells in the green belt to form a gravel infiltration layer, and an infiltration perforated pipe connected to the two adjacent infiltration rainwater wells is laid in the gravel infiltration layer; a drainage pipe connected to the municipal drainage network is installed on one side of the infiltration rainwater well.

2. The road surface rainwater collection system according to claim 1, characterized in that: The infiltration rainwater well includes a concrete base plate, a concrete mounting ring, and a flat-grate single-grate rainwater outlet cover. The concrete base plate is built with lime sand bricks to form a lime sand brick well body. The concrete mounting ring is installed on the top of the lime sand brick well body. The flat-grate single-grate rainwater outlet cover is inlaid and installed on the top of the concrete mounting ring; the drainage channel is located at the upper part of one side of the lime sand brick well body.

3. The road surface rainwater collection system according to claim 2, characterized in that: The top of the flat-grate single-grate rainwater well cover is lower than the top of the roadway, the top of the flat-grate single-grate rainwater well cover is lower than the top of the sidewalk, and the top of the flat-grate single-grate rainwater well cover is higher than the top of the green belt.

4. The road surface rainwater collection system according to claim 1, characterized in that: The drainage channel comprises a water inlet opening toward the roadway, a vertical shaft, and a drainage outlet opening toward the drainage channel, and the water inlet, the vertical shaft, and the drainage outlet are connected in sequence from top to bottom.

5. The road surface rainwater collection system according to claim 1, characterized in that: The bottom end of the drainage pipe is higher than the top end of the gravel permeable layer.

6. The road surface rainwater collection system according to claim 1, characterized in that: A layer of permeable geotextile is laid on the top of the gravel penetration layer.

7. The road surface rainwater collection system according to claim 1, characterized in that: The top of the gravel permeable layer is 500-700 mm away from the top of the green belt, and the bottom of the gravel permeable layer is 1000-1300 mm away from the top of the green belt.

8. The road surface rainwater collection system according to claim 1, characterized in that: A plurality of evenly distributed water seepage holes are provided on the pipe wall of the downward seepage perforated pipe.

9. The road surface rainwater collection system according to claim 8, characterized in that: The diameter of the water seepage hole is 10 mm, and the particle size of the gravel is greater than 10 mm.

Images