Road construction drainage device
By designing a cleaning system consisting of a screening screen, cleaning brushes, and a drive impeller, the problems of impurity blockage and water backflow in existing drainage devices are solved, achieving the effects of rapid and safe drainage.
Patent Information
- Application Number
- CN202511495999.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-20
- Publication Date
- 2025-11-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing road construction drainage devices are unable to quickly drain rainwater under heavy rain conditions, and small impurities can easily clog the filter holes, leading to problems such as water backflow and odor recirculation.
A road construction drainage device was designed, comprising a screening screen, a cleaning brush, a drive impeller, and a drainage component. Impurities are removed by the cleaning component inside the screening screen, and the filter holes are cleaned by the rotation of the drive impeller and the cleaning brush. Combined with the drainage component, water backflow is prevented, thus achieving rapid drainage and impurity removal.
It effectively prevents small impurities from clogging the filter holes, ensures rapid drainage and prevents water backflow, and improves the operating efficiency and safety of the road drainage system.
Smart Images

Figure CN120990224A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to drainage devices, specifically road construction drainage devices, and belongs to the field of road drainage technology. Background Technology
[0002] Road construction drainage devices are designed to ensure that roads remain dry and safe under various weather conditions. They are mainly used in intercepting ditches and drainage ditches, rainwater wells, drainage pipes, permeable pavements, side ditches and culverts, as well as bridge expansion joint drainage. Road construction drainage devices collect and guide rainwater or surface water to prevent water accumulation from affecting driving safety and damaging road structures.
[0003] Existing road drainage systems are subject to damage during heavy rain, resulting in slow drainage. While these systems can filter out larger debris such as fallen leaves, smaller debris tends to flow with the water and accumulate on the filter plate, clogging the filter holes and hindering the flow of water. Furthermore, backflow can occur when the water is blocked, failing to adequately meet user needs.
[0004] Therefore, a road construction drainage device is proposed here. Summary of the Invention
[0005] This invention proposes a road construction drainage device that can clean impurities adsorbed inside the filter holes of a screening screen, prevent small-volume impurities in sewage from clogging the filter holes, and prevent water or odors outside the first baffle from flowing back.
[0006] The present invention is achieved through the following technical solution: a road construction drainage device, including an installation shell, a separation shell fixed inside the installation shell, a first filter plate installed on the top surface of the installation shell, a connecting water pipe connected between the first filter plates on one side of the separation shell, two positioning rings fixed on the inner side wall of the separation shell, a screening screen rotating between the two positioning rings installed inside the separation shell, and a screening component for cleaning debris inside the screening screen.
[0007] Furthermore, the screening assembly includes two positioning plates fixed to the inner sidewall of the screening mesh and a cleaning plate fixed between two positioning collars. A contaminant receiving plate is fixed between the two positioning plates. A set of cleaning brushes is evenly installed on the side of the cleaning plate near the screening mesh, and the cleaning brushes are in contact with the outer periphery of the screening mesh.
[0008] Furthermore, a drain pipe is fixed to one end of the sewage receiving concave plate, and positioning plates are distributed on both sides of the sewage receiving concave plate near the drain pipe.
[0009] Furthermore, the position of the screening screen near the water pipe is higher than the position of the other side, and the position of the dirt receiving concave plate and the screening screen are kept horizontal.
[0010] Furthermore, a second filter plate is provided above the first filter plate, and a set of supporting filter rods are evenly fixed between the second filter plate and the first filter plate.
[0011] Furthermore, a set of drive impellers is uniformly fixed inside the screening mesh, and the drive impellers located on the same side are installed in an alternating manner.
[0012] A first baffle is fixed to the side of the separation shell away from the connecting water pipe, and the first baffle is fixedly sleeved around the sewage pipe. A drainage component to prevent backflow is provided on the side of the separation shell near the first baffle. The drainage component includes a second baffle located below the first baffle. Two connecting blocks that rotate on the bottom surface of the first baffle are fixed to the top surface of the second baffle. A compression spring is fixed between the side of the second baffle away from the separation shell and the sewage pipe.
[0013] Furthermore, a gasket is fixed to one side of the second baffle near the separation shell, and a sealing groove matching the position of the gasket is opened on one side of the separation shell.
[0014] This invention provides a road construction drainage device, which has the following beneficial effects: 1. In this road construction drainage device, the screened sewage impacts the surface of the second baffle and opens the second baffle to discharge. When the water flow is small, the compression spring pushes the second baffle to contact the separation shell to prevent water or odors outside the first baffle from flowing back.
[0015] 2. In this road construction drainage device, sewage enters the screen through the connecting water pipe and triggers the transmission impeller to rotate the screen inside the separation shell. This rotates the impurities inside the water to the top of the sewage receiving concave plate. At the same time, the screen slides on the surface of the cleaning brush to clean the impurities adsorbed inside the screen filter holes. The cleaned impurities fall into the sewage receiving concave plate and flow into the sewage pipe through the sewage and are discharged, thus preventing impurities in the sewage from clogging the filter holes. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the internal structure of the mounting shell in this invention; Figure 3 This is a three-dimensional cross-sectional view of the internal structure of the separation shell and the screening mesh in this invention; Figure 4 This is a three-dimensional structural diagram of the screening component in this invention.
[0017] Explanation of reference numerals in the attached figures 1. Install the outer casing; 2. Connect the water pipes; 3. First filter plate; 31. Supporting filter rod; 32. Second filter plate; 4. Separation shell; 41. Positioning collar; 5. Screening mesh; 51. Drive impeller; 6. Screening components; 61. Cleaning plate; 62. Cleaning brush; 63. Dirt receiving plate; 64. Drain pipe; 65. Positioning plate; 7. First baffle; 8. Drainage assembly; 81. Connecting block; 82. Second baffle; 83. Gasket; 84. Compression spring; 85. Sealing groove. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0019] Please see Figures 1-4 The present invention proposes the following implementation scheme: a road construction drainage device, including an installation shell 1, a separation shell 4 fixed inside the installation shell 1, a first filter plate 3 installed on the top surface of the installation shell 1, a connecting water pipe 2 connected between the first filter plates 3 on one side of the separation shell 4, two positioning collars 41 fixed on the inner side wall of the separation shell 4, a screening screen 5 rotating between the two positioning collars 41 installed inside the separation shell 4, and a screening component 6 for cleaning debris inside the screening screen 5.
[0020] Please refer to this carefully. Figure 3 The screening component 6 includes two positioning plates 65 fixed to the inner wall of the screening screen 5 and a cleaning plate 61 fixed between two positioning collars 41. A dirt-receiving concave plate 63 is fixed between the two positioning plates 65. A set of cleaning brushes 62 are evenly installed on the side of the cleaning plate 61 near the screening screen 5, and the cleaning brushes 62 are in contact with the outer periphery of the screening screen 5.
[0021] Please refer to this carefully. Figure 3 A drain pipe 64 is fixed to one end of the sewage receiving plate 63, and positioning plates 65 are distributed on both sides of the sewage receiving plate 63 near the drain pipe 64.
[0022] The position of the screen 5 near the water pipe 2 is higher than the position of the other side, and the position of the dirt receiving plate 63 is kept horizontal with the position of the screen 5.
[0023] In the above scheme, sewage enters the interior of the screen 5 through the connecting water pipe 2, and triggers the transmission impeller 51 to make the screen 5 rotate inside the separation shell 4, rotating the impurities inside the water to the top of the sludge receiving concave plate 63. At the same time, the screen 5 slides on the surface of the cleaning brush 62 to clean the impurities adsorbed inside the filter holes of the screen 5. The cleaned impurities fall into the interior of the sludge receiving concave plate 63. Since the sludge receiving concave plate 63 and the separation shell 4 are installed at an angle, the impurities inside the sludge receiving concave plate 63 flow into the sewage pipe 64 through the sewage and are discharged.
[0024] Please refer to this carefully. Figure 2 A second filter plate 32 is provided above the first filter plate 3, and a set of support filter rods 31 are evenly fixed between the second filter plate 32 and the first filter plate 3.
[0025] In the above scheme, the supporting filter rod 31 and the second filter plate 32 are used to drain water into the connecting water pipe 2 at the same time.
[0026] Please refer to this carefully. Figure 3 A set of drive impellers 51 are evenly fixed inside the screen 5, and the drive impellers 51 located on the same side are installed in an alternating manner.
[0027] Please refer to this carefully. Figure 2 , Figure 3 and Figure 4 A first baffle 7 is fixed on the side of the separation shell 4 away from the connecting water pipe 2, and the first baffle 7 is fixedly sleeved on the outside of the drain pipe 64. A drainage component 8 to prevent backflow is provided on the side of the separation shell 4 near the first baffle 7. The drainage component 8 includes a second baffle 82 located below the first baffle 7. Two connecting blocks 81 that rotate on the bottom surface of the first baffle 7 are fixed on the top surface of the second baffle 82. A compression spring 84 is fixed between the side of the second baffle 82 away from the separation shell 4 and the drain pipe 64.
[0028] Please refer to this carefully. Figure 4 A gasket 83 is fixed on one side of the second baffle 82 near the separation shell 4, and a sealing groove 85 matching the position of the gasket 83 is opened on one side of the separation shell 4.
[0029] In the above scheme, the screened sewage impacts the surface of the second baffle 82 and opens the second baffle 82 to discharge. When the water flow is small, the compression spring 84 pushes the second baffle 82 to contact the separation shell 4 to prevent water or odors outside the first baffle 7 from flowing back.
[0030] In use, the mounting housing 1 is installed inside a road drain well, with the second filter plate 32 exposed above the ground. When there is standing water on the ground, the supporting filter rod 31 and the second filter plate 32 simultaneously drain water into the connecting water pipe 2, blocking larger debris inside the sewage. The sewage enters the screen 5 through the connecting water pipe 2, triggering the transmission impeller 51 to rotate the screen 5 inside the separation housing 4, rotating impurities inside the water to above the dirt-receiving concave plate 63. Simultaneously, the screen 5 slides on the surface of the cleaning brush 62, cleaning the impurities adsorbed inside the filter holes of the screen 5. After cleaning, impurities fall into the inside of the sludge receiving concave plate 63. Since both the sludge receiving concave plate 63 and the separation shell 4 are installed at an angle, the impurities inside the sludge receiving concave plate 63 flow into the sewage pipe 64 through the sewage and are discharged, preventing small-volume impurities in the sewage from clogging the filter holes. The filtered sewage impacts the surface of the second baffle 82 and opens the second baffle 82 to discharge. When the water flow is small, the compression spring 84 pushes the second baffle 82 to contact the separation shell 4, preventing water or odors outside the first baffle 7 from flowing back. When the water inside the separation shell 4 accumulates to a certain level, the second baffle 82 can be opened again and discharged.
[0031] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A road construction drainage device, including a mounting housing (1), characterized in that: The installation housing (1) has a separation shell (4) fixed inside. The top surface of the installation housing (1) is equipped with a first filter plate (3). A connecting water pipe (2) is connected between the first filter plates (3) on one side of the separation shell (4). Two positioning collars (41) are fixed on the inner wall of the separation shell (4). A screen (5) rotating between the two positioning collars (41) is installed inside the separation shell (4). A screening component (6) for cleaning debris is provided inside the screen (5). The screening component (6) includes two positioning plates (65) fixed on the inner wall of the screen (5) and a cleaning plate (61) fixed between the two positioning collars (41). A dirt-receiving concave plate (63) is fixed between the two positioning plates (65). A set of cleaning brushes (62) are evenly installed on the side of the cleaning plate (61) near the screen (5), and the cleaning brushes (62) are in contact with the periphery of the screen (5). The separation shell (4) has a first baffle (7) fixed on the side away from the connecting water pipe (2), and the first baffle (7) is fixedly sleeved on the outside of the sewage pipe (64). The separation shell (4) has a drainage component (8) to prevent backflow on the side close to the first baffle (7).
2. The road construction drainage device according to claim 1, characterized in that: The drainage assembly (8) includes a second baffle (82) disposed below the first baffle (7). Two connecting blocks (81) that rotate on the bottom surface of the first baffle (7) are fixed on the top surface of the second baffle (82). A compression spring (84) is fixed between the side of the second baffle (82) away from the separation shell (4) and the drain pipe (64).
3. The road construction drainage device according to claim 1, characterized in that: One end of the sewage receiving concave plate (63) is fixed with a sewage pipe (64), and the positioning plate (65) on the side near the sewage pipe (64) is distributed on both sides of the sewage receiving concave plate (63).
4. The road construction drainage device according to claim 1, characterized in that: The position of the screen (5) near the water pipe (2) is higher than the position of the other side, and the position of the dirt receiving plate (63) and the screen (5) are kept horizontal.
5. The road construction drainage device according to claim 1, characterized in that: A second filter plate (32) is provided above the first filter plate (3), and a set of support filter rods (31) are evenly fixed between the second filter plate (32) and the first filter plate (3).
6. The road construction drainage device according to claim 1, characterized in that: A set of drive impellers (51) are uniformly fixed inside the screening mesh (5), and the drive impellers (51) located on the same side are staggered.
7. The road construction drainage device according to claim 2, characterized in that: The second baffle (82) has a gasket (83) fixed on one side near the separation shell (4), and a sealing groove (85) matching the position of the gasket (83) is opened on one side of the separation shell (4).