Dustproof and siltproof environment-friendly type rainwater inlet structure

Abstract

The utility model discloses a dustproof silt prevention environmental protection type rainwater inlet structure, including rainwater inlet well, rainwater inlet well top opening portion is installed with rainwater grate, the rainwater grate is below the setting of mud groove, the rainwater inlet well bottom near the one side of curb is equipped with 90 degree arc flow slope, the rainwater inlet well bottom near the one side of road centerline is installed with drainage pipeline, the input of drainage pipeline is near 90 degree arc flow slope and is located, the output of drainage pipeline extends to rainwater inlet well outside. The utility model discloses a detachable cleaning mud groove is set up in the rainwater inlet well, on one hand can intercept the most of sundries of the road fall into the rainwater inlet, prevent its into the rainwater inlet and municipal pipeline and cause the blockage, on the other hand, convenient manual dismounting and cleaning, in addition, adopt 90 degree arc flow slope design, convert rainwater potential energy into kinetic energy, promote rainwater to remove the speed, and avoid the deposition blockage of solid impurity in pipeline.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage technology, specifically to a dustproof and silt-proof environmentally friendly rainwater inlet structure. Background Technology

[0002] Municipal storm drains serve to collect rainwater and quickly drain it from roads, playing a vital role in preventing urban flooding and ensuring safe urban life and production. To ensure proper drainage and prevent blockage of the storm drain grates, the grates typically have large openings, generally around 34%. Furthermore, to facilitate rapid rainwater drainage, the storm drains are usually located at or slightly below the road surface. Therefore, dust from road vehicles, fallen branches from trees, litter, and solid impurities carried by rainwater inevitably enter the storm drains. This is particularly problematic in industrial and mining areas where heavy coal truck traffic has long resulted in storm drains being clogged by coal ash and road dust.

[0003] Furthermore, with urbanization and industrialization, the initial rainwater runoff from the initial stages of rainfall, washing away impermeable surfaces such as roads and roofs, contains large amounts of pollutants including oil, sulfates, organic matter, and suspended particles. Its pollution load far exceeds that of ordinary urban sewage, and direct discharge into the environment would severely impact aquatic ecosystems and endanger aquatic ecological security. Suspended particles and floating solids can combine with dissolved pollutants such as heavy metals and polycyclic aromatic hydrocarbons through adsorption to form complex pollutants. These complex pollutants are one of the main forms of pollutants in initial rainwater. Therefore, intercepting solid matter in initial rainwater can effectively mitigate its pollution impact on urban aquatic ecosystems.

[0004] A large amount of solid impurities entering the storm drain can easily cause solid waste accumulation and blockage of the storm drain pipes, severely affecting the drainage capacity. Furthermore, due to the narrow size of municipal storm drain wells (standard industry size 680mm x 380mm), mechanical cleaning is difficult within this limited space, often requiring manual labor. This not only results in high maintenance costs but also poor cleaning effectiveness, rendering storm drain maintenance largely ineffective. Over time, the accumulation of blockages accelerates pipe corrosion, shortens the lifespan of the facilities, and severely impairs the normal drainage function of the storm drain, producing foul odors and affecting residents' daily lives and work.

[0005] Therefore, it is necessary to invent a dustproof and silt-proof environmentally friendly rainwater inlet structure to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a dustproof and silt-proof environmentally friendly rainwater inlet structure to solve the problems of siltation and blockage of rainwater facilities, initial rainwater pollution, and maintenance difficulties caused by solid debris entering the rainwater inlet.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dustproof and silt-proof environmentally friendly rainwater inlet structure, including a rainwater inlet well, a rainwater grate installed at the top opening of the rainwater inlet well, a sedimentation trough provided directly below the rainwater grate, a 90° arc-shaped flow slope opened on the bottom surface of the rainwater inlet well near the curb, a drainage pipe installed on the bottom of the rainwater inlet well near the center line of the road, the input end of the drainage pipe being located near the 90° arc-shaped flow slope, and the output end of the drainage pipe extending to the outside of the rainwater inlet well.

[0008] Preferably, the distance between the top of the sedimentation trough and the bottom of the rainwater grate is 5cm. The sedimentation trough is made of stainless steel and has a thickness of 3mm. It is lightweight, high-strength, and has excellent rust resistance.

[0009] Preferably, the sedimentation trough has a right-angled trapezoidal cross-sectional shape and a 5° slope at the bottom, which can collect most of the solid impurities that fall into the rainwater inlet.

[0010] Preferably, the sedimentation trough has a serrated overflow weir on the side near the curb, the overflow weir has a width of 580mm and a tooth height of 10mm.

[0011] Preferably, the overflow weir is used to drain rainwater during rainy days and trap solid debris in the sedimentation tank to prevent solid impurities from entering the rainwater inlet well.

[0012] Preferably, a bolt is fixedly connected to the inner wall of the rainwater inlet well on the side near the center line of the road, and a limit groove is provided on the side of the sedimentation tank near the inner wall of the rainwater inlet well, and the limit groove is engaged with the bolt.

[0013] Preferably, the sedimentation tank is movably connected to the rainwater inlet well via bolts fixed to the inner wall of the rainwater inlet well, which facilitates manual disassembly and cleaning.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. By setting sedimentation tanks inside the storm drain wells, most of the debris falling from the road surface due to disturbance, carried by rainwater, and naturally falling from trees can be intercepted and prevented from entering the storm drains and municipal pipes, thus mitigating the problem of initial rainwater pollution. 2. The sedimentation tank is movably connected to the rainwater inlet well via bolts fixed to the inner wall of the rainwater inlet well, which facilitates manual disassembly and cleaning, and helps to solve the drawbacks of inconvenient manual cleaning and high mechanical cleaning costs in traditional maintenance. 3. A 90° arc-shaped flow slope is adopted to convert the potential energy of rainwater into kinetic energy, thereby increasing the speed of rainwater drainage. At the same time, the increased kinetic energy of the water can prevent the deposition and blockage of solid impurities in the pipes. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of the structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is an exploded view of the structure of this utility model; Figure 4 This utility model Figure 3 Enlarged view of section A in the diagram; Figure 5 This is a schematic diagram of the sedimentation tank of this utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Rainwater inlet well; 2. Rainwater grate; 3. Sedimentation trough; 4. 90° arc-shaped flow slope; 5. Drainage pipe; 6. Overflow weir; 7. Bolt; 8. Limiting slot. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0018] This utility model provides, for example Figure 1-5 The diagram shows an environmentally friendly rainwater inlet structure that is dustproof and prevents siltation. It includes a rainwater inlet well 1, a rainwater grate 2 installed at the top opening of the rainwater inlet well 1, a sedimentation trough 3 located directly below the rainwater grate 2, a 90° arc-shaped flow slope 4 on the inner bottom surface of the rainwater inlet well 1 near the curb, and a drainage pipe 5 installed on the bottom of the rainwater inlet well 1 near the center line of the road. The inlet end of the drainage pipe 5 is located near the 90° arc-shaped flow slope 4, and the outlet end of the drainage pipe 5 extends to the outside of the rainwater inlet well 1.

[0019] In one aspect of this embodiment, the top of the sedimentation trough 3 is 5cm away from the bottom of the storm drain grate 2. The sedimentation trough 3 is made of stainless steel and has a thickness of 3mm. It is lightweight, high-strength, and has excellent rust resistance. The cross-sectional shape of the sedimentation trough 3 is a right-angled trapezoid, and the bottom slope of the sedimentation trough 3 is 5°, which can collect most of the solid impurities that fall into the storm drain. A serrated overflow weir 6 is provided on the side of the sedimentation trough 3 near the curb, and the width of the overflow weir 6 is 58cm. The overflow weir 6 has a tooth height of 10mm. The overflow weir 6 is used to drain rainwater and trap solid debris in the sedimentation trough 3 during rainy days to prevent solid impurities from entering the rainwater inlet well 1. The inner wall of the rainwater inlet well 1 is fixedly connected to a bolt 7 on the side near the center line of the road. The sedimentation trough 3 is provided with a limit slot 8 on the side near the inner wall of the rainwater inlet well 1. The limit slot 8 is engaged with the bolt 7. The sedimentation trough 3 is movably connected to the rainwater inlet well 1 by the bolt 7 fixed to the inner wall of the rainwater inlet well 1, which is convenient for manual disassembly and cleaning.

[0020] The rain grate 2 mentioned above is an existing technology product, and its specific structure and function will not be described in detail here.

[0021] Working principle of this utility model: Refer to the instruction manual appendix Figure 1-5 When using this utility model, because the rain grate 2 is laid in a low-lying area of ​​the road and has large pores, solid impurities on the road surface can easily enter the rainwater inlet well 1 through the rain grate 2, causing debris to accumulate and block the well. On sunny days, solid debris such as fallen leaves and road dust enter the storm drain well 1 through the storm drain grate 2. The sedimentation trough 3 is located directly below the storm drain grate 2. The bottom of the sedimentation trough 2 has a 5° slope, which can collect most of the solid impurities that fall into the storm drain well 1. During rainy weather, road debris is carried by rainwater into the storm drain well 1. After passing through the storm drain grate 2, it first enters the sedimentation tank 3. When the sedimentation tank 3 is full, it overflows through the overflow weir 6 on one side into the bottom of the storm drain well 1. The overflow of rainwater through the overflow weir 6 can reduce the disturbance of the rainwater flow to the solid-liquid separation in the sedimentation tank 2. The purpose is to achieve the purpose of rainwater overflowing from the overflow weir 6, and solid debris being deposited and trapped in the sedimentation tank 2 by gravity, thus achieving the interception and separation of solid debris during rainy weather. The bottom surface of the rainwater inlet well 1 is provided with a 90° arc-shaped flow slope 4. The rainwater overflowing from the overflow weir 6 flows down from the high place and converts the gravitational potential energy into the kinetic energy of the water body through the 90° arc-shaped flow slope 4 at the bottom of the well, reducing the energy loss of the rainwater and increasing the kinetic energy of the rainwater. This increases the flow speed of the rainwater in the drainage pipe 5, strengthens the impact of the rainwater on solid impurities in the drainage pipe 5, avoids the deposition and accumulation of solid impurities in the drainage pipe 5, and ensures the normal hydraulic conditions of the drainage pipe 5. The slope at the bottom of the sedimentation tank 2 is conducive to the collection of solid impurities, especially in rainy weather, to avoid the disturbance of solid impurities by the flow of rainwater. At the same time, the sedimentation tank 2 is movably connected to the rainwater inlet well 1 by bolts 7 fixed to the inner wall of the rainwater inlet well 1, which is convenient for manual disassembly. The cleaning work of the disassembled sedimentation tank 2 is simpler, more convenient and more effective than the traditional rainwater inlet cleaning work, which greatly reduces the maintenance difficulty and cost of the rainwater inlet and achieves better results.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dustproof and silt-proof environmentally friendly rainwater inlet structure, comprising a rainwater inlet well (1), characterized in that: A rain grate (2) is installed at the top opening of the rainwater inlet well (1). A sedimentation trough (3) is set directly below the rainwater grate (2). A 90° arc-shaped flow slope (4) is opened on the bottom surface of the rainwater inlet well (1) near the curb. A drainage pipe (5) is installed on the bottom side of the rainwater inlet well (1) near the center line of the road. The input end of the drainage pipe (5) is set near the 90° arc-shaped flow slope (4). The output end of the drainage pipe (5) extends to the outside of the rainwater inlet well (1).

2. The dustproof and silt-proof environmentally friendly rainwater inlet structure according to claim 1, characterized in that: The distance between the top of the sedimentation tank (3) and the bottom of the rain grate (2) is 5cm. The sedimentation tank (3) is made of stainless steel and has a thickness of 3mm. It is lightweight, strong and rust resistant.

3. The dustproof and silt-proof environmentally friendly rainwater inlet structure according to claim 1, characterized in that: The sedimentation tank (3) has a right-angled trapezoidal cross-section and a 5° slope at the bottom, which can collect most of the solid impurities that fall into the rainwater inlet.

4. The dustproof and silt-proof environmentally friendly rainwater inlet structure according to claim 1, characterized in that: The sedimentation trough (3) has a serrated overflow weir (6) on the side near the curb. The width of the overflow weir (6) is 580 mm and the tooth height of the overflow weir (6) is 10 mm.

5. The dustproof and silt-proof environmentally friendly rainwater inlet structure according to claim 4, characterized in that: The overflow weir (6) is used to drain rainwater and trap solid debris in the sedimentation tank (3) during rainy days, so as to prevent solid impurities from entering the rainwater inlet well (1).

6. The dustproof and silt-proof environmentally friendly rainwater inlet structure according to claim 1, characterized in that: The inner wall of the rainwater inlet well (1) is fixedly connected to a bolt (7) on the side near the center line of the road. The sedimentation tank (3) is provided with a limiting groove (8) on the side near the inner wall of the rainwater inlet well (1). The limiting groove (8) is engaged with the bolt (7).

7. The dustproof and silt-proof environmentally friendly rainwater inlet structure according to claim 6, characterized in that: The sedimentation tank (3) is movably connected to the rainwater inlet well (1) by bolts (7) fixed to the inner wall of the rainwater inlet well (1), which facilitates manual disassembly and cleaning.

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