A municipal road drainage structure with anti-backflow function

By introducing a filtration mechanism and a floating plate anti-backflow design into the municipal road drainage structure, the problems of drainage pipe blockage and backflow caused by large particles in the road surface water have been solved, achieving effective drainage and anti-backflow effects.

CN224412732UActive Publication Date: 2026-06-26ANHUI YUJIE PROJECT MANAGEMENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ANHUI YUJIE PROJECT MANAGEMENT CO LTD
Filing Date
2025-08-05
Publication Date
2026-06-26

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Abstract

The utility model belongs to road drainage technical field, concretely is a kind of municipal road drainage structure with anti-backflow function, including roadbed, the top of roadbed is equipped with drainage groove, the bottom of roadbed is fixedly installed with drain pipe, the inside of drain pipe and the inner wall of drainage groove are mutually penetrated, the inner chamber of drainage groove is slidably installed with well lid, the inner chamber of drainage groove is provided with filter mechanism, the filter mechanism includes triangular block, and the triangular block is fixedly installed in the inner wall of drainage groove;By setting filter mechanism, the larger particle impurities in water are filtered by filter screen box, the bottom of filter screen box is inclined, and the filtered impurities will move to the two sides of filter screen box under the action of its gravity, thereby realizing the butt joint of impurities to two sides, avoiding the blockage of filter screen box, the position fixation of filter screen box can be directly cancelled, the clamping block moves out of the clamping slot, and thereby realizes the quick separation of drainage groove and filter screen box.
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Description

Technical Field

[0001] This utility model relates to the field of road drainage technology, specifically a municipal road drainage structure with anti-backflow function. Background Technology

[0002] Municipal road drainage refers to the management and treatment of rainwater and wastewater from urban roads and neighborhoods. This includes the design and construction of drainage systems on road surfaces for the collection, transmission, treatment, and discharge of rainwater and sewage. The purpose of municipal road drainage systems is to ensure unobstructed drainage of roads and surrounding areas, preventing flooding, waterlogging, and waterlogging, while also preventing wastewater from polluting surface water and groundwater resources.

[0003] Municipal drainage systems typically consist of pipes and manhole covers. The manhole covers shield the top of the pipes to prevent potholes in the road and allow water to drain into the pipes. However, standing water on the road surface often contains large particles, which can easily clog the drainage pipes. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, manhole covers are used to cover the top of the pipes to prevent potholes in the road and to drain water into the pipes. However, water on the road surface is usually accompanied by large particles, which can easily clog the drainage pipes. This utility model proposes a municipal road drainage structure with anti-backflow function.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a municipal road drainage structure with anti-backflow function, including a roadbed, a drainage trough is opened on the top of the roadbed, a drainage pipe is fixedly installed at the bottom of the roadbed, the inner side of the drainage pipe is connected to the inner wall of the drainage trough, a manhole cover is slidably installed in the inner cavity of the drainage trough, and a filter mechanism is provided in the inner cavity of the drainage trough.

[0006] The filtration mechanism includes two triangular blocks, which are fixedly installed on the inner wall of the drainage trough. A filter screen box is slidably connected to the inner wall of the drainage trough. A slot is provided on the inner wall of the drainage trough. A locking block is fixedly installed on the surface of the filter screen box, and the surface of the locking block is slidably connected to the inner cavity of the slot.

[0007] Preferably, a locking rod is fixedly installed on the inner wall of the slot, and a locking hole is opened on the surface of the locking block, with the surface of the locking rod slidably connected to the inner cavity of the locking hole.

[0008] Preferably, a support rod is fixedly installed on one side of the two triangular blocks opposite each other, and the surface of the support rod is in contact with the bottom of the filter box.

[0009] Preferably, a sliding groove is provided at the bottom of the roadbed, a sliding rod is slidably connected to the inner wall of the sliding groove, and a floating plate is fixedly installed at the bottom of the sliding rod.

[0010] Preferably, a stop is fixedly installed on the surface of the sliding rod, and the stop cooperates with the inner wall of the sliding groove.

[0011] Preferably, a spring is fixedly installed on the top of the floating plate, and one end of the spring is fixedly connected to the bottom of the roadbed.

[0012] Preferably, the inner wall of the sliding groove is provided with a guide groove, and a guide block is fixedly installed on the surface of the sliding rod, with the surface of the guide block slidably connected to the inner cavity of the guide groove.

[0013] The advantages of this utility model are:

[0014] This utility model uses a filtration mechanism to filter larger particles in the water through a filter screen box. The bottom of the filter screen box is inclined, and the filtered impurities will move to both sides of the filter screen box under their own gravity, thereby achieving the goal of the impurities connecting to both sides and avoiding clogging of the filter screen box. It can directly eliminate the need to fix the position of the filter screen box, allowing the locking block to move out of the locking slot, thus achieving rapid separation of the drain tank and the filter screen box. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is an exploded view of the filter box and drainage channel of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the spring and float plate of this utility model;

[0019] Figure 4 This is a schematic diagram of the sliding groove and stop block of this utility model.

[0020] In the diagram: 1. Roadbed; 2. Drainage ditch; 3. Manhole cover; 4. Filtration mechanism; 401. Triangular block; 402. Filter box; 403. Slot; 404. Block; 5. Rod; 6. Hole; 7. Support rod; 8. Sliding groove; 9. Sliding rod; 10. Float; 11. Stop; 12. Spring; 13. Guide groove; 14. Guide block; 15. Drainage pipe. 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 scope of protection of the present utility model.

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a municipal road drainage structure with anti-backflow function. (Refer to...) Figure 1 and Figure 2 A municipal road drainage structure with anti-backflow function includes a roadbed 1, a drainage trough 2 is provided on the top of the roadbed 1, a drainage pipe 15 is fixedly installed at the bottom of the roadbed 1, the inner side of the drainage pipe 15 is connected to the inner wall of the drainage trough 2, a manhole cover 3 is slidably installed in the inner cavity of the drainage trough 2, and a filter mechanism 4 is provided in the inner cavity of the drainage trough 2.

[0024] The filtration mechanism 4 includes two triangular blocks 401, which are fixedly installed on the inner wall of the drainage trough 2. A filter screen box 402 is slidably connected to the inner wall of the drainage trough 2. A slot 403 is provided on the inner wall of the drainage trough 2. A locking block 404 is fixedly installed on the surface of the filter screen box 402. The surface of the locking block 404 is slidably connected to the inner cavity of the slot 403. By setting up the filtration mechanism 4, larger particles in the water are filtered through the filter screen box 402. The bottom of the filter screen box 402 is inclined. The filtered impurities will move to both sides of the filter screen box 402 under their own gravity, thereby achieving the docking of impurities to both sides and avoiding clogging of the filter screen box 402. The position of the filter screen box 402 can be directly fixed, allowing the locking block 404 to move out of the slot 403, thereby achieving rapid separation between the drainage trough 2 and the filter screen box 402.

[0025] Reference Figure 2A locking rod 5 is fixedly installed on the inner wall of the slot 403, and a locking hole 6 is opened on the surface of the locking block 404. The surface of the locking rod 5 is slidably connected to the inner cavity of the locking hole 6. Through the slidable connection between the locking rod 5 and the locking hole 6, the position of the filter box 402 can be determined, ensuring that the filter box 402 can be accurately installed, thereby realizing the normal use of the filter box 402.

[0026] Reference Figure 2 A support rod 7 is fixedly installed on one side of the two triangular blocks 401. The surface of the support rod 7 is in contact with the bottom of the filter box 402. By setting the support rod 7, the inclined surface of the filter box 402 can be further supported, and the deformation of the central area of ​​the inclined surface can be reduced.

[0027] Reference Figure 3 and Figure 4 A sliding groove 8 is provided at the bottom of the roadbed 1. A sliding rod 9 is slidably connected to the inner wall of the sliding groove 8. A float plate 10 is fixedly installed at the bottom of the sliding rod 9. By setting the float plate 10, when the pressure inside the drainage pipe 15 is greater than the external air pressure, backflow will occur. The rising water flow pushes the float plate 10 to move upward, causing the sliding rod 9 to slide into the inner cavity of the sliding groove 8. This allows the float plate 10 to block the connection between the drainage pipe 15 and the drainage groove 2, thereby preventing backflow.

[0028] Reference Figure 4 A stop 11 is fixedly installed on the surface of the sliding rod 9. The stop 11 works in conjunction with the inner wall of the sliding groove 8. By setting the stop 11, when the float 10 is not working, the sliding rod 9 can move to the outside of the sliding groove 8 under the action of the gravity of the float 10, which will make the stop contact the inner wall of the sliding groove 8, thereby preventing the sliding rod 9 from separating from the sliding groove 8.

[0029] Reference Figure 3 A spring 12 is fixedly installed on the top of the floating plate 10. One end of the spring 12 is fixedly connected to the bottom of the roadbed 1. By setting the spring 12, the elastic coefficient of the spring 12 is small, so as to avoid affecting the upward movement of the floating plate 10. After the floating plate 10 moves upward, it will squeeze the spring 12. When the work is canceled, the floating plate 10 can be quickly reset under the reaction force of the spring 12.

[0030] Reference Figure 4 The inner wall of the sliding groove 8 is provided with a guide groove 13, and a guide block 14 is fixedly installed on the surface of the sliding rod 9. The surface of the guide block 14 is slidably connected to the inner cavity of the guide groove 13. Through the slidable connection between the guide groove 13 and the guide block 14, the movement of the float 10 can be guided, so that the float 10 can remain vertical and move up and down.

[0031] Working principle: After water flows through the manhole cover 3, it enters the inner cavity of the drainage trough 2. Larger particles of impurities in the water are filtered through the filter box 402. The bottom of the filter box 402 is inclined. Under the action of its own gravity, the filtered impurities will move to both sides of the filter box 402, thus achieving the goal of the impurities connecting to both sides and avoiding blockage of the filter box 402. At the same time, during the operation of the filter box 402, the inclined surface of the filter box 402 can be supported by the triangular block 401 to ensure the normal operation of the filter box 402, thereby preventing impurities from affecting the drainage pipe 15. When the filter box 402 accumulates to a certain extent, by removing the manhole cover 3, the position fixing of the filter box 402 can be directly removed, allowing the locking block 404 to move out of the locking groove 403, thus achieving the separation of the drainage trough 2 and the filter box 402.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A municipal road drainage structure with backflow prevention function, characterized in that: Includes a roadbed (1), a drainage ditch (2) is provided on the top of the roadbed (1), a drainage pipe (15) is fixedly installed at the bottom of the roadbed (1), the inner side of the drainage pipe (15) is connected to the inner wall of the drainage ditch (2), a manhole cover (3) is slidably installed in the inner cavity of the drainage ditch (2), and a filter mechanism (4) is provided in the inner cavity of the drainage ditch (2). The filtration mechanism (4) includes a triangular block (401), which is fixedly installed on the inner wall of the drainage trough (2). There are two triangular blocks (401). A filter box (402) is slidably connected to the inner wall of the drainage trough (2). A slot (403) is opened on the inner wall of the drainage trough (2). A locking block (404) is fixedly installed on the surface of the filter box (402). The surface of the locking block (404) is slidably connected to the inner cavity of the slot (403).

2. A municipal road drainage structure with anti-backflow function according to claim 1, characterized in that: A locking rod (5) is fixedly installed on the inner wall of the slot (403), and a locking hole (6) is opened on the surface of the locking block (404). The surface of the locking rod (5) is slidably connected to the inner cavity of the locking hole (6).

3. A municipal road drainage structure with anti-backflow function according to claim 1, characterized in that: A support rod (7) is fixedly installed on one side of each of the two triangular blocks (401), and the surface of the support rod (7) is in contact with the bottom of the filter box (402).

4. A municipal road drainage structure with anti-backflow function according to claim 1, characterized in that: The bottom of the roadbed (1) is provided with a sliding groove (8), and a sliding rod (9) is slidably connected to the inner wall of the sliding groove (8). A floating plate (10) is fixedly installed at the bottom of the sliding rod (9).

5. A municipal road drainage structure with anti-backflow function according to claim 4, characterized in that: A stop (11) is fixedly installed on the surface of the sliding rod (9), and the stop (11) is used in conjunction with the inner wall of the sliding groove (8).

6. A municipal road drainage structure with anti-backflow function according to claim 4, characterized in that: A spring (12) is fixedly installed on the top of the floating plate (10), and one end of the spring (12) is fixedly connected to the bottom of the roadbed (1).

7. A municipal road drainage structure with anti-backflow function according to claim 4, characterized in that: The inner wall of the sliding groove (8) is provided with a guide groove (13), and a guide block (14) is fixedly installed on the surface of the sliding rod (9). The surface of the guide block (14) is slidably connected to the inner cavity of the guide groove (13).