A municipal road drainage structure
By introducing a turbulence layer, a filter layer, and a purification chamber into the drainage structure of municipal roads, the problems of low drainage efficiency and easy clogging of traditional rainwater inlets have been solved, achieving efficient impurity interception and water purification, and improving maintenance efficiency and system stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN YUETONG CONSTR ENG CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-07-07
AI Technical Summary
Traditional rainwater inlets have low drainage efficiency, are prone to clogging, cannot effectively intercept large pieces of garbage and purify pollutants, and are inefficient to maintain.
A municipal road drainage structure was designed, comprising a rainwater inlet, a turbulence layer, a filter layer, and a purification chamber. The turbulence layer slows down the water flow, the filter layer is easy to install and remove, and the purification chamber performs multi-layer purification to achieve efficient interception and purification of impurities.
It improves the stability and purification effect of the drainage system, reduces the risk of pipe network blockage, reduces environmental pollution, and improves maintenance efficiency.
Smart Images

Figure CN224468532U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of road drainage devices, specifically a municipal road drainage structure. Background Technology
[0002] Municipal road drainage is an important part of urban infrastructure. It aims to effectively collect, transport, and discharge rainwater and road wastewater through systematic design, prevent flooding, and ensure traffic safety. During daily rainfall, runoff from the road surface or large amounts of water accumulated during short-term heavy rainfall require the use of rainwater inlets. Rainwater inlets can quickly collect rainwater and prevent road flooding from affecting traffic. In low-lying areas of the road, intersections, and other areas prone to water accumulation, rainwater inlets can promptly discharge the collected rainwater to ensure smooth road flow.
[0003] Traditional storm drains only perform basic rainwater collection functions, resulting in insufficient drainage efficiency and stability. During heavy rainfall, the rapid water flow can easily impact downstream pipes, and the grate surface is easily covered by debris, obstructing water inflow. Furthermore, without a tiered filtration structure, they cannot intercept large debris such as leaves and plastic bags, and are even less able to absorb pollutants such as oil and heavy metals in rainwater, leading to a high risk of pipe network blockage and water pollution. Traditional storm drains also lack a quick-disassembly design, requiring significant manpower to clean internal debris or replace filter components, resulting in low efficiency and making it difficult to meet the high-frequency maintenance needs of municipal facilities. Utility Model Content
[0004] The purpose of this utility model is to provide a municipal road drainage structure to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a municipal road drainage structure, including a shell, and further comprising:
[0006] A rainwater inlet is installed on the top of the housing. A turbulence layer is provided at the bottom of the rainwater inlet. A mounting ring is provided at the bottom of the turbulence layer. A filter layer is installed on the inner wall of the mounting ring. Fixing components are fixedly connected to the top left and right sides of the filter layer. Handles are fixedly connected to the inner left and right sides of the filter layer. Slide rails are provided on the front and rear sides of the outer wall of the mounting ring. A purification chamber is installed at the bottom of the inner wall of the housing.
[0007] Preferably, each of the two fixing members has a mounting post fixedly connected to its bottom, each of the two mounting posts has a connecting rod fixedly connected to its bottom, each of the two connecting rods has a slider slidably connected to its outer wall, each of the two connecting rods has a mounting head fixedly connected to its bottom, the mounting ring has mounting cavities on both the left and right sides of its inner wall, each of the connecting rods has two sets of locking cavities on both the left and right sides of its inner wall, each of the two sets of locking cavities has a fixing block fixedly connected to its inner wall, each of the fixing blocks has a sliding rod slidably connected to its inner wall, each of the sliding rods has a spring on its outer wall, and each of the sliding rods has a locking block fixedly connected to one end.
[0008] Preferably, both the turbulence layer and the mounting ring are installed inside the housing.
[0009] Preferably, the top of the purification chamber is located at the bottom of the filter layer.
[0010] Preferably, the bottoms of the plurality of sliders are all engaged with the outer walls of the plurality of blocks.
[0011] Preferably, the outer walls of the plurality of mounting heads are all disposed inside the mounting cavity.
[0012] Preferably, one end of each of the plurality of springs is fixedly connected to the outer wall of the card block.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0014] This invention utilizes the coordinated operation of a rainwater inlet, a turbulence layer, a filter layer, and a purification chamber. After rainwater enters through the rainwater inlet, the turbulence layer guides and buffers the water flow, slowing down the flow rate and improving the subsequent filtration effect. The filter layer, with the help of fasteners and mounting columns, allows for convenient disassembly and stable installation, facilitating cleaning and replacement, and effectively intercepting and filtering large debris and other impurities. The purification chamber deeply purifies the filtered rainwater. This multi-layered purification mechanism significantly improves the quality of drainage water, reduces pollution to municipal pipe networks and natural water bodies, and enhances the overall sealing and stability of the components through their connection and structural design. It adapts to complex road environments, extends the service life of the drainage structure, and provides strong support for the efficient and stable operation of municipal road drainage systems, combining environmental protection and practical value. Attached Figure Description
[0015] Figure 1 The front view provided for this utility model;
[0016] Figure 2 A cross-sectional view of the housing provided for this utility model;
[0017] Figure 3 Exploded view of the interior of the shell provided for this utility model;
[0018] Figure 4A schematic diagram of the filter layer structure provided by this utility model;
[0019] Figure 5 for Figure 4 Enlarged view of point A in the middle.
[0020] In the diagram: 1. Shell; 2. Rainwater inlet; 3. Baffle layer; 4. Mounting ring; 5. Filter layer; 6. Fixing component; 7. Handle; 8. Slide rail; 9. Purification chamber; 10. Mounting post; 11. Connecting rod; 12. Slider; 13. Mounting head; 14. Mounting chamber; 15. Locking chamber; 16. Fixing block; 17. Slide rod; 18. Spring; 19. Locking block. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1-5 As shown, a municipal road drainage structure includes a shell 1, and further includes:
[0023] The rainwater inlet 2 is installed on top of the housing 1. The housing 1 is made of composite material, serving as the overall frame and carrier. It provides a stable installation foundation for components such as the rainwater inlet 2, the baffle layer 3, the filter layer 5, and the purification chamber 9, ensuring the stability of each component under external forces such as vehicle loads and water flow impacts. Its enclosed structure forms an independent drainage space, effectively preventing rainwater leakage and debris intrusion, ensuring the normal operation of internal components, and reducing odor emissions. The rainwater inlet 2 undertakes the core function of collecting rainwater from the road surface. Whether it is runoff formed by daily rainfall or large amounts of rainwater that accumulate rapidly during heavy rain, it can quickly intercept it with its grate structure, preventing road surface water from affecting traffic. For pedestrian safety, and because rainwater inlet 2 is connected to drainage pipes, inspection wells, and other facilities, it systematically guides collected rainwater into the pipe network, ensuring the smooth operation of the entire drainage system. A turbulence layer 3 is installed at the bottom of rainwater inlet 2. This layer disrupts the direct flow of rainwater, effectively slowing the flow rate and evenly dispersing concentrated water flow. This prevents water from impacting downstream pipes and filter layer 5 during heavy rainfall, optimizes the water flow path, guides rainwater to flow evenly through filter layer 5, prevents "short-circuiting," ensures sufficient contact between rainwater and filter materials, improves stratified purification efficiency, and enhances the system's drainage resilience and stability under extreme weather conditions such as heavy rain. An installation device is installed at the bottom of the turbulence layer 3. Ring 4, the baffle layer 3, and the mounting ring 4 are all installed inside the housing 1. A filter layer 5 is installed on the inner wall of the mounting ring 4. The mounting ring 4 provides working space for the filter layer 5 and, in conjunction with a quick-installation mechanism, allows for rapid installation and removal of the filter layer 5. Fixing pieces 6 are fixedly connected to the top left and right sides of the filter layer 5, and handles 7 are fixedly connected to the inner left and right sides of the filter layer 5. The handles 7 serve as leverage points for manual operation, assisting maintenance personnel in quickly pulling out the filter layer 5 module, facilitating the removal of large debris, significantly improving maintenance efficiency, and reducing labor costs. Slide rails 8 are provided on the front and rear sides of the outer wall of the mounting ring 4, providing precise support for the filter layer 5. The sliding trajectory prevents it from shifting or getting stuck during the pulling process, ensuring the accuracy of the installation and docking, and facilitating the cleaning of debris by maintenance personnel. The bottom of the inner wall of the shell 1 is equipped with a purification chamber 9, and the top of the purification chamber 9 is located at the bottom of the filter layer 5. The purification chamber 9 contains multiple layers of filter materials such as quartz sand and activated carbon, which finely treat rainwater and can effectively intercept suspended solids, adsorb oil and heavy metals and other pollutants. The unique cavity structure can also slow down the water flow, promote the sedimentation of silt and the separation of floating objects, and further improve the purification effect. The bottom of the shell 1 can be connected to pipes. This multi-layer purification mechanism can significantly improve the quality of drainage water and reduce pollution to municipal pipe networks and natural water bodies.
[0024] Two mounting posts 10 are fixedly connected to the bottom of each of the two fixing parts 6. Connecting rods 11 are fixedly connected to the bottom of each of the two mounting posts 10. Sliding sliders 12 are slidably connected to the outer walls of each of the two connecting rods 11. Mounting heads 13 are fixedly connected to the bottom of each of the two connecting rods 11. Mounting cavities 14 are formed on both the left and right sides of the inner wall of the mounting ring 4. The outer walls of multiple mounting heads 13 are located inside the mounting cavities 14. Two sets of locking cavities 15 are formed on both the left and right sides of the inner walls of the connecting rods 11. The inner walls of the two sets of locking cavities 15 are fixedly connected to... There are fixed blocks 16, and slide rods 17 are slidably connected to the inner walls of multiple fixed blocks 16. Springs 18 are provided on the outer walls of multiple slide rods 17. A locking block 19 is fixedly connected to one end of multiple slide rods 17. The bottoms of multiple sliders 12 are locked into the outer walls of multiple locking blocks 19. One end of multiple springs 18 is fixedly connected to the outer wall of locking blocks 19. The mounting head 13 at the bottom of the connecting rod 11 is embedded in the mounting cavity 14 on the inner wall of the mounting ring 4 for initial positioning. Pressing down the mounting head 13 causes the inclined surface of the locking block 19 to pass through the mounting head 13. The outer wall of the filter layer 5 is compressed by the locking block 19 into the locking cavity 15, which in turn compresses the spring 18 and drives the slide rod 17 to slide within the fixed block 16, causing the locking block 19 to retract into the locking cavity 15. When the locking block 19 passes the bottom of the mounting head 13, the spring 18 returns to its original position and pushes the locking block 19 out, its outer wall engaging with the bottom of the slider 12, thereby locking the slider 12 onto the connecting rod 11. At the same time, through the cooperation of the mounting head 13 and the mounting cavity 14, a stable connection and positioning of the filter layer 5 and the mounting ring 4 is achieved, realizing a detachable locking and fixing function. To remove the filter layer 5, simply hold the handle 7 and apply downward pressure. At this time, the mounting head 13 slides into the mounting cavity 14, further driving the slider 12 to abut against the bottom of the mounting post 10. This causes the inclined surface of the locking block 19 to slide towards the top of the slider 12. When the locking block 19 passes the slider 12, the locking block 19 abuts against the top of the slider 12. Pull the handle 7 outward further, causing the locking block 19 to further drive the slider 12 to abut against the top of the mounting head 13. This allows the inclined surface of the locking block 19 to pass through the mounting head 13, completing the removal of the filter layer 5.
[0025] Working principle: When it rains, the top rainwater inlet 2 collects rainwater from the road surface and guides it into the interior. When the rainwater passes through the turbulence layer 3, its structure disrupts the water flow, slows down the flow velocity, and evenly disperses the water, preventing it from impacting the downstream pipe and filter layer 5. At the same time, it promotes the initial separation of impurities. Finally, the rainwater that has undergone preliminary treatment by the filter layer 5 enters the purification chamber 9 at the bottom of the housing 1, where it is further purified by multiple layers of filter materials, and finally discharged through the pipe at the bottom of the housing 1, achieving efficient drainage and water purification. The filter layer 5 is connected to the mounting ring 4 by the fastener 6. When it is necessary to remove the filter layer 5, the debris inside can be cleaned. When the rainwater inlet 2 is opened, the handle 7 is held and downward pressure is applied. At this time, the mounting head 13 slides into the mounting cavity 14, which further drives the slider 12 to abut against the bottom of the mounting post 10. This causes the inclined surface of the locking block 19 to slide towards the top of the slider 12. When the locking block 19 passes the slider 12, the locking block 19 abuts against the top of the slider 12. The handle 7 is pulled outward, which causes the locking block 19 to further drive the slider 12 to abut against the top of the mounting head 13. This causes the inclined surface of the locking block 19 to pass through the mounting head 13, which further causes the mounting mechanism to disengage from the mounting cavity 14, thus completing the disassembly of the filter layer 5.
[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] 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 municipal road drainage structure, comprising a shell (1), characterized in that, Also includes: A rainwater inlet (2) is installed on the top of the housing (1). A turbulence layer (3) is provided at the bottom of the rainwater inlet (2). An installation ring (4) is provided at the bottom of the turbulence layer (3). A filter layer (5) is installed on the inner wall of the installation ring (4). Fixing parts (6) are fixedly connected to the top left and right sides of the filter layer (5). Handles (7) are fixedly connected to the inner wall left and right sides of the filter layer (5). Slide rails (8) are provided on the front and back sides of the outer wall of the installation ring (4). A purification chamber (9) is installed at the bottom of the inner wall of the housing (1).
2. The municipal road drainage structure according to claim 1, characterized in that: The bottom of each of the two fixing members (6) is fixedly connected to a mounting post (10), the bottom of each of the two mounting posts (10) is fixedly connected to a connecting rod (11), the outer wall of each of the two connecting rods (11) is slidably connected to a slider (12), the bottom of each of the two connecting rods (11) is fixedly connected to a mounting head (13), the inner wall of the mounting ring (4) is provided with mounting cavities (14) on both the left and right sides, the inner left and right sides of the connecting rod (11) are provided with two sets of locking cavities (15), the inner wall of each of the two sets of locking cavities (15) is fixedly connected to a fixing block (16), the inner wall of each of the fixing blocks (16) is slidably connected to a sliding rod (17), the outer wall of each of the sliding rods (17) is provided with a spring (18), and one end of each of the sliding rods (17) is fixedly connected to a locking block (19).
3. A municipal road drainage structure according to claim 1, characterized in that: The turbulence layer (3) and the mounting ring (4) are both installed inside the housing (1).
4. A municipal road drainage structure according to claim 1, characterized in that: The top of the purification chamber (9) is located at the bottom of the filter layer (5).
5. A municipal road drainage structure according to claim 2, characterized in that: The bottoms of the multiple sliders (12) are all engaged with the outer walls of the multiple blocks (19).
6. A municipal road drainage structure according to claim 2, characterized in that: The outer walls of the plurality of mounting heads (13) are disposed inside the mounting cavity (14).
7. A municipal road drainage structure according to claim 2, characterized in that: One end of each of the multiple springs (18) is fixedly connected to the outer wall of the block (19).