A roadbed drainage structure for municipal road construction

The design of detachable and pluggable filter plates and scrapers solves the problem of easy clogging of filter screens in roadbed drainage structures used in municipal road construction, achieving efficient drainage and ensuring the stability and safety of the road.

CN224280926UActive Publication Date: 2026-05-26SHANXI CONSTR ENG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANXI CONSTR ENG CO LTD
Filing Date
2025-05-21
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The filter screens of existing roadbed drainage structures used in municipal road construction are easily clogged by sticky substances and stones, resulting in reduced drainage efficiency and affecting the stability of the road structure.

Method used

The filter uses a detachable plug-in filter plate structure, combined with a scraper and a collection plate design, to thoroughly remove sticky substances and pebbles, ensuring unobstructed filter flow.

Benefits of technology

It effectively restored the filtration performance of the filter screen, ensured the drainage efficiency of the roadbed, avoided water accumulation in the roadbed caused by clogging of the filter structure, and improved the stability and safety of the road.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of roadbed drainage technology and discloses a roadbed drainage structure for municipal road construction, including a drainage box for placement at a drainage outlet. The box has openings at its top, left, and right ends, and a placement groove with a rainwater grate installed at the top opening. Two sets of fixing grooves are vertically arranged opposite each other inside the drainage box. Filter plates are detachably inserted into both sets of fixing grooves, with the filter holes of the two filter plates facing the left and right ends of the drainage box, respectively. The opposite sidewalls of the placement grooves abut against the sidewalls of the two filter plates. A receiving plate is located at the bottom of the drainage box between the two filter plates, and an extension frame is provided at its top. The opposite sidewalls of the extension frame are provided with several permeable holes. This utility model allows for easy disassembly of the filter structure, thereby achieving thorough removal of sticky substances.
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Description

Technical Field

[0001] This utility model relates to the field of roadbed drainage technology, and in particular to a roadbed drainage structure for municipal road construction. Background Technology

[0002] With the acceleration of urbanization and the continuous expansion of municipal road construction, the importance of roadbed drainage structures, as key facilities to ensure road stability and service life, is becoming increasingly prominent. Efficient roadbed drainage structures can promptly remove accumulated water from the roadbed, preventing problems such as roadbed settlement and pavement cracking caused by water damage. They have broad application prospects and far-reaching significance for improving the quality and safety of municipal road engineering projects.

[0003] Patent CN218779621U discloses a roadbed drainage structure for municipal road construction. In use, a drainage box is first placed in a groove, and a drainage pipe is passed through the drainage hole and connected to the filter hole. When it rains, rainwater enters the filter box through the top opening of the drainage box, and rainwater also carries debris that accumulates inside the filter box. The rainwater entering the filter box is filtered by the filter screen and flows out of the filter box through the filter hole into the drainage pipe. When there is a large amount of debris accumulated in the filter box and it needs to be cleaned, the moving rod is rotated. Because the moving rod and the moving plate are threaded together, the moving plate moves upward along the length of the moving rod. The rotation of the moving rod drives the moving plate upward, and the brush, under the action of the push spring, is pushed towards the filter screen, thereby cleaning the surface of the filter screen. The aforementioned device has the following drawbacks in use: During actual drainage, the filter structure of the drainage device comes into contact with various sticky substances such as silt and oil. Relying solely on the force of the brush and the push spring, it is difficult to completely remove these sticky substances; only the surface can be cleaned, leaving deep-seated sticky substances behind. Over time, these residual debris continue to attract floating objects such as leaf debris, adhering and accumulating together, gradually clogging the filter mesh pores. Once the filter mesh pores are clogged, the effective area for rainwater to pass through is greatly reduced, thereby decreasing drainage efficiency. In addition, stones may become embedded in the filter mesh crevices under long-term water flow, and even with the movement of the brush, they cannot be removed. These sticky debris and stones continue to accumulate on the filter mesh, gradually clogging it, not only significantly reducing drainage efficiency but also potentially causing water to accumulate inside the roadbed and be unable to drain, thus affecting the overall stability of the road structure.

[0004] Therefore, how to easily disassemble the filter structure to achieve complete removal of sticky substances has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] The present invention aims to provide a roadbed drainage structure for municipal road construction to overcome the shortcomings mentioned above.

[0006] To achieve the above objectives, the technical solution of this utility model is: a roadbed drainage structure for municipal road construction, comprising:

[0007] A drainage box is used to be placed at a drainage outlet. It is open at the top, left and right ends, and a placement groove is provided at the top opening. The placement groove is equipped with a rainwater grate.

[0008] The drainage tank contains two sets of fixed grooves arranged vertically opposite each other. Each set of fixed grooves can be detachably connected to a filter plate, with the filter holes of the two filter plates facing the left and right ends of the drainage tank, respectively. The opposite sidewalls of the placement grooves abut against the sidewalls of the two filter plates.

[0009] The storage plate is arranged at the bottom of the drainage tank and between the two filter plates. An extension frame is provided at its upper end, and several water-permeable holes are provided on the opposite side walls of the extension frame.

[0010] Furthermore, one end of the rain grate and one end of the placement groove are hinged together, the other end of the rain grate is provided with a through hole, the other end of the placement groove is provided with a locking hole, the through hole is provided with a locking component, and the locking component is used to operably lock the relative rotation between the rain grate and the drainage box.

[0011] Furthermore, the lower end of the rain grate is provided with a snap-fit ​​groove, which communicates with the through hole. The locking assembly includes a movable rod, a locking block, and an end plate. The movable rod is rotatably arranged in the through hole. One end of the movable rod is connected to the end plate, and the side wall of the other end of the movable rod is connected to the locking block. The locking block is adapted to the snap-fit ​​groove, and both the movable rod and the locking block are inserted into the locking hole.

[0012] Furthermore, the locking hole includes a first insertion end, a second insertion end, and a rotating end. The other end of the placement groove is provided with the first insertion end and the second insertion end in a vertical direction. The first insertion end and the second insertion end are connected. The first insertion end is adapted to the movable rod, and the second insertion end is adapted to the locking block. The first insertion end is provided with a rotating end in a horizontal direction. The rotating end and the second insertion end are connected, and the rotating end is adapted to the locking block.

[0013] Furthermore, the upper end of the extension frame is provided with two sets of scrapers, one set of scrapers having a wedge-shaped end facing the filter plate, and the other set of scrapers having a wedge-shaped end facing the inner wall of the drain tank.

[0014] Furthermore, the storage board has several drainage holes arranged vertically through it, and at least one handle is provided at the upper end of the storage board.

[0015] Furthermore, the upper end of the storage plate is connected to one end of the connecting rope, and the other end of the connecting rope is connected to the float.

[0016] Furthermore, the upper end of the drainage box is provided with two mounting slots facing each other, and the two mounting slots are respectively located on both sides of the rainwater grate, and a folding handle is provided in the mounting slot.

[0017] Compared with the prior art, this utility model has at least the following advantages: When rainfall occurs, rainwater is first initially filtered through a rain grate, then falls through the grate onto a collection plate inside the drainage tank. The rainwater on the collection plate flows out through permeable holes in the side wall of the extension frame, undergoes secondary filtration through a filter plate, and finally flows into the drainage ditch. During this process, the collection plate can collect debris carried by the rainwater. When a large amount of sticky substances, stones, or other debris adheres to the filter plate, because it is connected to the fixing groove via a detachable plug-in method, the filter plate can be easily removed from the fixing groove for thorough cleaning. This solves the problem of difficult-to-remove sticky substances, restores the filtration performance of the filter plate, ensures drainage efficiency, and prevents water accumulation inside the roadbed due to clogging of the filtration structure. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of the roadbed drainage structure for municipal road construction according to this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of the roadbed drainage structure for municipal road construction of this utility model from another angle.

[0021] Figure 3 This is a cross-sectional view of the rain grate and locking assembly of this utility model;

[0022] Figure 4 This is a cross-sectional view of the drainage tank and locking hole of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the storage board of this utility model.

[0024] Reference numerals: 1. Drainage tank; 2. Placement slot; 3. Rain grate; 4. Fixing slot; 5. Filter plate; 6. Storage plate; 7. Extension frame; 8. Water permeable hole; 9. Through hole; 10. Locking hole; 11. Snap-fit ​​slot; 12. Movable rod; 13. Locking block; 14. End plate; 15. First insertion end; 16. Second insertion end; 17. Rotating end; 20. Scraper; 21. Drainage hole; 22. Handle; 23. Connecting rope; 24. Float; 25. Mounting slot; 26. Folding handle. Detailed Implementation

[0025] 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.

[0026] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] Reference Figure 1-2 This utility model provides a roadbed drainage structure for municipal road construction, including a drainage box 1 placed at a drainage outlet. The drainage box 1 has openings at its top, left, and right ends. A placement groove 2 is provided at the top opening of the drainage box 1, and a rainwater grate 3 is installed in the placement groove 2. The rainwater grate 3 serves as the first-stage interception component of the drainage structure, which can initially filter larger-volume garbage and debris to prevent them from entering the drainage system and causing blockages. Two sets of fixing grooves 4 are arranged vertically opposite each other inside the drainage box 1. Filter plates 5 can be detachably inserted into both sets of fixing grooves 4, and the filter holes of the two filter plates 5 face the left end of the drainage box 1 and the outlet. At the right end of the water tank 1, a secondary filtration of rainwater is formed. The opposite sidewalls of the placement trough 2 abut against the sidewalls of the two filter plates 5 respectively. A collection plate 6 is arranged at the bottom of the drainage tank 1 and between the two filter plates 5. An extension frame 7 is provided at the upper end of the collection plate 6. When the staff removes the collection plate 6 for cleaning, the extension frame 7 can prevent stones and other impurities on the collection plate 6 from sliding out, avoiding impurities from falling into the drain or the road surface. Several permeable holes 8 are provided on the opposite sidewalls of the extension frame 7. Rainwater falls into the collection plate 6 through the grate holes of the rain grate 3, flows out through the permeable holes 8, and is discharged through the filter holes of the filter plate 5.

[0028] One end of the rain grate 3 is hinged to one end of the placement groove 2. With this hinge, the rain grate 3 can rotate around the hinge point, making it easy for staff to open and close. A through hole 9 is provided at the other end of the rain grate 3, and a locking hole 10 is provided at the other end of the placement groove 2. A locking component is provided in the through hole 9. The locking component is used to operably lock the relative rotation between the rain grate 3 and the drainage box 1.

[0029] Reference Figure 3 The lower end of the rain grate 3 is provided with a snap-fit ​​groove 11, which is connected to the through hole 9. The locking assembly includes a movable rod 12, a locking block 13, and an end plate 14. The movable rod 12 is rotatably arranged in the through hole 9. One end of the movable rod 12 is connected to the end plate 14, and the side wall of the other end of the movable rod 12 is connected to the locking block 13. The locking block 13 is adapted to the snap-fit ​​groove 11. Both the movable rod 12 and the locking block 13 are inserted into the locking hole 10.

[0030] Reference Figure 4 The locking hole 10 includes a first insertion end 15, a second insertion end 16, and a rotating end 17. The other end of the placement groove 2 is provided with the first insertion end 15 and the second insertion end 16 in a vertical direction. The first insertion end 15 and the second insertion end 16 are connected. The first insertion end 15 is adapted to the movable rod 12, and the second insertion end 16 is adapted to the locking block 13. The first insertion end 15 is provided with a rotating end 17 in a horizontal direction. The rotating end 17 is connected to the second insertion end 16, and the rotating end 17 is adapted to the locking block 13.

[0031] In use, pull up the end plate 14 to slide the locking block 13 into the snap-fit ​​groove 11, then rotate the rain grate 3 so that the through hole 9 of the rain grate 3 and the first insertion end 15 of the placement groove 2 are on the same vertical line. Next, push the end plate 14 so that the movable rod 12 enters the first insertion end 15 of the locking hole 10 and the locking block 13 enters the second insertion end 16 of the locking hole 10. Finally, rotate the end plate 14 so that the locking block 13 slides into the rotating end 17, thereby completing the locking between the rain grate 3 and the drainage box 1.

[0032] The operator rotates the end plate 14, causing the locking block 13 to slide out of the rotating end 17 and into the second insertion end 16. Then, the operator pulls the end plate 14, causing the locking block 13 to slide out of the second insertion end 16 and into the snap-fit ​​groove 11. Finally, the operator lifts the rain grate 3 through the grate hole, thereby releasing the lock between the rain grate 3 and the drainage box 1.

[0033] Reference Figure 5 The upper end of the extension frame 7 is provided with two sets of scrapers 20, one set of scrapers 20 with the wedge-shaped end facing the filter plate 5, and the other set of scrapers 20 with the wedge-shaped end facing the inner wall of the drain tank 1.

[0034] The storage board 6 has several drainage holes 21 running vertically through it, and two "T"-shaped handles 22 are provided at the top of the storage board 6 to facilitate staff to lift the storage board 6 for cleaning.

[0035] When in use, staff lift the collection plate 6 to clean it. The scraper 20 can scrape off the leaves, garbage bags and other impurities stuck to the filter plate 5 and the inner wall of the drain box 1 onto the collection plate 6, making it easier to clean them later. When the collection plate 6 is lifted, if the collected impurities carry rainwater, the rainwater can flow out through the drain hole 21.

[0036] The upper end of the collection plate 6 is connected to one end of the connecting rope 23, and the other end of the connecting rope 23 is connected to the float 24. The float 24 is bright orange. When a lot of impurities accumulate on the collection plate 6, causing the water level to rise, the float 24 will float up with the water level. By observing the position of the float 24, the staff can open the rain grate 3 in time to clean the impurities on the filter plate 5.

[0037] Reference Figure 1 The upper end of the drainage box 1 is provided with two mounting slots 25, and the two mounting slots 25 are located on both sides of the rain grate 3. The mounting slots 25 are provided with folding handles 26. When not in use, the folding handles 26 can be stored in the mounting slots 25 to save space. When the drainage box 1 needs to be moved, it can be unfolded to make it easier for staff to grip and improve the convenience of moving.

[0038] The working principle of this utility model is as follows: When in use, the drainage box 1 is first placed on the pre-dug drainage outlet. When it rains, the rainwater is first initially filtered through the rain grate 3, and then falls into the collection plate 6 inside the drainage box 1. The rainwater on the collection plate 6 flows out through the water-permeable holes 8 on the side wall of the extension frame 7, and then undergoes secondary filtration through the filter plate 5, and finally flows into the drainage ditch. In this process, the filter plate 5 can not only perform secondary filtration of rainwater, but also intercept impurities in the drainage ditch, effectively preventing these impurities from flowing into the drainage box 1.

[0039] When it is necessary to clean the collection plate 6, the locking components should be released from the rain grate 3 and the drain box 1. The rain grate 3 should be lifted upwards and rotated around the hinge point so that the upper opening of the drain box 1 is exposed. The staff can lift the collection plate 6 by pulling the handle 22. One set of scrapers 20 will scrape off the leaves, garbage bags and other impurities stuck to the filter plate 5, and another set of scrapers will scrape off the impurities on the inner wall of the drain box 1 so that the impurities fall onto the collection plate 6 for unified cleaning.

[0040] When it is necessary to clean the filter plate 5, the staff will pull the filter plate 5 out of the fixing groove 4 and then control the brush pressure to clean the impurities on the filter plate 5.

[0041] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A roadbed drainage structure for municipal road construction, characterized in that, include: Drainage box (1), which is used to place at the drain outlet, has openings at the top, left and right ends, and a placement groove (2) is provided at the top opening, and the placement groove (2) is provided with rainwater grates (3). The drainage tank (1) is provided with two sets of fixed grooves (4) arranged vertically opposite each other. Both sets of fixed grooves (4) can be detachably connected to filter plates (5), and the filter holes of the two filter plates (5) face the left and right ends of the drainage tank (1) respectively. The opposite sidewalls of the placement groove (2) abut against the sidewalls of the two filter plates (5); and The storage plate (6) is arranged at the bottom of the drainage tank (1) and between the two filter plates (5). An extension frame (7) is provided at its upper end. Several water-permeable holes (8) are provided on the opposite side walls of the extension frame (7).

2. The roadbed drainage structure for municipal road construction according to claim 1, characterized in that, One end of the rain grate (3) is hinged to one end of the placement groove (2). The other end of the rain grate (3) is provided with a through hole (9). The other end of the placement groove (2) is provided with a locking hole (10). The through hole (9) is provided with a locking component. The locking component is used to operably lock the relative rotation between the rain grate (3) and the drainage box (1).

3. The roadbed drainage structure for municipal road construction according to claim 2, characterized in that, The lower end of the rain grate (3) is provided with a snap-fit ​​groove (11), which is connected to the through hole (9). The locking assembly includes a movable rod (12), a locking block (13), and an end plate (14). The movable rod (12) is rotatably arranged in the through hole (9). One end of the movable rod (12) is connected to the end plate (14), and the side wall of the other end of the movable rod (12) is connected to the locking block (13). The locking block (13) is adapted to the snap-fit ​​groove (11), and both the movable rod (12) and the locking block (13) are inserted into the locking hole (10).

4. The roadbed drainage structure for municipal road construction according to claim 3, characterized in that, The locking hole (10) includes a first insertion end (15), a second insertion end (16) and a rotating end (17). The other end of the placement groove (2) is provided with the first insertion end (15) and the second insertion end (16) in a vertical direction. The first insertion end (15) and the second insertion end (16) are connected. The first insertion end (15) is adapted to the movable rod (12). The second insertion end (16) is adapted to the locking block (13). The first insertion end (15) is provided with a rotating end (17) in a horizontal direction. The rotating end (17) and the second insertion end (16) are connected. The rotating end (17) and the locking block (13) are adapted to each other.

5. The roadbed drainage structure for municipal road construction according to claim 1, characterized in that, The upper end of the extension frame (7) is provided with two sets of scrapers (20), one set of scrapers (20) with the wedge-shaped end facing the filter plate (5), and the other set of scrapers (20) with the wedge-shaped end facing the inner wall of the drain tank (1).

6. The roadbed drainage structure for municipal road construction according to claim 1, characterized in that, The storage plate (6) has several drainage holes (21) arranged vertically through it, and at least one handle (22) is provided at the upper end of the storage plate (6).

7. The roadbed drainage structure for municipal road construction according to any one of claims 1 to 6, characterized in that, The upper end of the storage plate (6) is connected to one end of the connecting rope (23), and the other end of the connecting rope (23) is connected to the float (24).

8. The roadbed drainage structure for municipal road construction according to any one of claims 1 to 7, characterized in that, The upper end of the drainage box (1) is provided with two mounting slots (25) opposite each other, and the two mounting slots (25) are located on both sides of the rain grate (3). A folding handle (26) is provided in the mounting slot (25).