Easily-drained roadbed pavement
By introducing a combination of drainage blocks and filter screens into the road drainage system, the problem of blockage by hard debris was solved, achieving smooth road drainage and improved safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LONGHUA COUNTY ZISHUN HIGHWAY CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-28
AI Technical Summary
Existing road drainage systems are easily clogged by hard debris, leading to water accumulation on the road surface, posing safety hazards and affecting road traffic.
Design an easy-drainage roadbed pavement, adopting a combination structure of drainage blocks and filter mesh, using elastic buffer sheets to prevent the through holes from being blocked, and using connecting posts and limiting extension frames to facilitate the cleaning of debris and ensure smooth drainage.
It effectively prevents the passageways from becoming clogged, promptly removes debris, ensures that the road surface does not accumulate water on rainy days, and improves road safety and traffic efficiency.
Smart Images

Figure CN224173463U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road drainage technology, specifically relating to an easy-draining roadbed pavement. Background Technology
[0002] Road surface is the structural surface layer that directly provides passage for vehicles and pedestrians. Its structure directly affects driving safety and stability. Rainwater itself carries many corrosive substances and pollutants. If road drainage is poor, rainwater will erode the roadbed and accelerate road surface cracking. Therefore, road drainage should be designed reasonably and effectively. By installing rainwater grates, drainage can be carried out to avoid the impact of poor road drainage on road traffic operation and long-term road quality, ensuring smooth road surface drainage and extending the working performance of the road surface.
[0003] After rainwater passes through the drainage grates, it can be discharged through the drainage ditch. However, due to the influence of impurities on the road surface, there are many hard debris such as small stones. When these accumulate, water can easily accumulate on the road surface, posing a safety hazard. Utility Model Content
[0004] This utility model provides an easy-drainage roadbed pavement, which has the characteristics that when there is a lot of accumulated debris, the drainage blocks and filter screens can be directly removed from the road surface by opening the drainage grates, making it convenient for cleaning work, eliminating safety hazards in time, and ensuring that the road surface does not accumulate water on rainy days.
[0005] This utility model provides the following technical solution: an easily drainable roadbed pavement, including a drainage grate installed on the road surface, a drainage channel below the drainage grate, and a water-blocking and drainage assembly below the drainage grate. The water-blocking and drainage assembly includes a water-blocking and drainage block and a filter screen. The top of the water-blocking and drainage block has a downward-sloping drainage surface, which is opposite to the drainage channel. The water-blocking and drainage block has several filter through holes. The water-blocking and drainage block is located below the drainage grate, and the filter screen is located below the water-blocking and drainage block.
[0006] Two elastic buffer plates are slidably connected inside the filter through-hole, and the elastic buffer plates are elastically connected inside the water-blocking and draining block.
[0007] The bottom of the drainage grate is fixedly connected to two first connecting columns, one end of which is fixedly connected to the water-blocking block.
[0008] The filter screen is fixedly connected to a limiting extension frame on its outer side, and the limiting extension frame is an enclosing type.
[0009] The bottom of the water-blocking and drainage block is fixedly connected to a second connecting column, and one end of the second connecting column is fixedly connected to the limiting extension frame.
[0010] The drain hole of the drain grate is positioned opposite to the upper part of the top of the drainage block, and the water flows along the top surface of the drainage block.
[0011] The length and width of the filter screen are both greater than those of the drainage block, and the filter screen is located above the drainage ditch.
[0012] The beneficial effects of this utility model are:
[0013] The drainage system includes drainage blocks and a filter screen. When water is discharged from the drain grate, it falls onto the drainage blocks. The water flows along the inclined surface of the drainage blocks, and during the flow, some impurities can pass through the filter holes and fall into the filter screen. The position of the compressed elastic buffer plate can prevent the filter holes from becoming clogged. When a lot of debris accumulates, the drainage blocks and filter screen can be removed directly from the road surface by opening the drain grate, facilitating cleaning, eliminating safety hazards in a timely manner, and ensuring that the road surface does not accumulate water on rainy days.
[0014] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the water-blocking and drainage component in this utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the limiting extension frame in this utility model;
[0018] Figure 4 This is a schematic diagram of the structure of the water-blocking and drainage block in this utility model;
[0019] In the diagram: 1. Drainage grate; 11. Drainage channel; 2. Water blocking and drainage assembly; 21. Water blocking and drainage block; 211. Filter through hole; 212. Elastic buffer sheet; 22. Filter blocking mesh; 23. Limiting extension frame; 24. First connecting post; 25. Second connecting post. Detailed Implementation
[0020] Please see Figures 1-4The present invention provides the following technical solution: a drainage grate 1 installed on the road surface, a drainage channel 11 below the drainage grate 1, and a water-blocking and drainage assembly 2 below the drainage grate 1. The water-blocking and drainage assembly 2 includes a water-blocking and drainage block 21 and a filter screen 22. The top of the water-blocking and drainage block 21 has a downward-sloping drainage surface, which is opposite to the drainage channel 11. The water-blocking and drainage block 21 has several filter through holes 211. The water-blocking and drainage block 21 is located below the drainage grate 1, and the filter screen 22 is located below the water-blocking and drainage block 21.
[0021] In this embodiment: the water-blocking and drainage assembly 2 includes a water-blocking and drainage block 21 and a filter screen 22. The top of the water-blocking and drainage block 21 has a downward-sloping drainage surface, which is opposite to the drainage ditch 11. When rainwater flows on the drainage surface, it can flow into the drainage ditch 11. The water-blocking and drainage block 21 has several filter holes 211. The water-blocking and drainage block 21 is located below the drainage grate 1, and the filter screen 22 is located below the water-blocking and drainage block 21. The water-blocking and drainage block 21 and the filter screen 22 work together to ensure the filtration effect. When water is discharged from the drainage grate 1, it can fall into the water-blocking and drainage assembly. On block 21, water flows along the inclined surface of the drainage block 21. During the flow, some impurities can fall into the filter screen 22 through the filter holes 211. The position of the compressed elastic buffer sheet 212 can prevent the filter holes 211 from becoming clogged. When a lot of debris accumulates, the drainage block 21 and filter screen 22 can be directly removed from the road surface by opening the drainage grate 1, which is convenient for cleaning and timely elimination of safety hazards, ensuring that the road surface does not accumulate water on rainy days. When in use, the drainage grate 1 is installed to directly and securely position the drainage block 21 and filter screen 22.
[0022] Two elastic buffer plates 212 are slidably connected inside the filter through-hole 211. The elastic buffer plates 212 are elastically connected inside the drain block 21. During the flow process, some impurities can pass through the filter through-hole 211 and fall onto the filter screen 22. The position of the compressed elastic buffer plates 212 can prevent the filter through-hole 211 from becoming clogged.
[0023] The bottom of the drainage grate 1 is fixedly connected to two first connecting columns 24. One end of the first connecting column 24 is fixedly connected to the blocking and draining block 21. Under the action of the first connecting column 24, there can be a distance between the drainage grate 1 and the blocking and draining block 21, which facilitates water drainage.
[0024] A limiting extension frame 23 is fixedly connected to the outside of the filter screen 22. The limiting extension frame 23 is enclosed. It can accumulate debris inside the filter screen 22 and prevent debris from falling out when the filter screen 22 is pulled up.
[0025] The bottom of the water-blocking block 21 is fixedly connected to a second connecting post 25, one end of which is fixedly connected to the limiting extension frame 23. Under the action of the second connecting post 25, a distance can be created between the water-blocking block 21 and the filter screen 22, which facilitates the filtering and cleaning of debris.
[0026] The drain hole of the drainage grate 1 is positioned opposite the top upper area of the blocking and draining block 21. The water flows along the top end face of the blocking and draining block 21. The length and width of the filter screen 22 are both greater than those of the blocking and draining block 21. The filter screen 22 is located above the drainage channel 11. The drain hole of the drainage grate 1 is positioned opposite the top upper area of the blocking and draining block 21, which allows the water to flow along the drain surface. This facilitates the entry of some hard debris into the filter through hole 211 under the action of weight, and the filter screen 22 stabilizes the filtration of debris.
[0027] The working principle and usage of this utility model are as follows: The top of the water-blocking and drainage block 21 has a downward-sloping drainage surface, which is opposite to the drainage channel 11. When rainwater flows on the drainage surface, it can flow into the drainage channel 11. The water-blocking and drainage block 21 has several filter holes 211. The water-blocking and drainage block 21 is located below the drainage grate 1, and the filter screen 22 is located below the water-blocking and drainage block 21. When water is discharged from the drainage grate 1, it can fall onto the water-blocking and drainage block 21. The water flows along the inclined surface of the water-blocking and drainage block 21. During the process, some impurities can fall into the filter screen 22 through the filter hole 211. The position of the compressed elastic buffer sheet 212 can prevent the filter hole 211 from becoming clogged. When a lot of debris accumulates, the drainage grate 1 can be opened to directly remove the drainage block 21 and the filter screen 22 from the road surface for easy cleaning, timely elimination of safety hazards, and to ensure that the road surface does not accumulate water on rainy days. When in use, the drainage grate 1 is installed to directly and securely position the drainage block 21 and the filter screen 22.
Claims
1. A type of easily drainable roadbed pavement, comprising a drainage grate (1) installed on the road surface, wherein a drainage channel (11) is provided below the drainage grate (1), characterized in that: Below the drainage grate (1) is a water-blocking and drainage assembly (2), which includes a water-blocking and drainage block (21) and a filter screen (22). The top of the water-blocking and drainage block (21) has a downward-sloping drainage surface, which is opposite to the drainage channel (11). The water-blocking and drainage block (21) has several filter holes (211). The water-blocking and drainage block (21) is located below the drainage grate (1), and the filter screen (22) is located below the water-blocking and drainage block (21).
2. The easily drainable roadbed pavement according to claim 1, characterized in that: Two elastic buffer plates (212) are slidably connected inside the filter through hole (211), and the elastic buffer plates (212) are elastically connected inside the water blocking block (21).
3. The easily drainable roadbed pavement according to claim 1, characterized in that: The bottom of the drainage grate (1) is fixedly connected to two first connecting columns (24), one end of which is fixedly connected to the blocking and draining block (21).
4. The easily drainable roadbed pavement according to claim 1, characterized in that: The filter screen (22) is fixedly connected to a limiting extension frame (23) on the outside, and the limiting extension frame (23) is enclosed.
5. The easily drainable roadbed pavement according to claim 4, characterized in that: The bottom of the water-blocking and drainage block (21) is fixedly connected to a second connecting post (25), and one end of the second connecting post (25) is fixedly connected to the limiting extension frame (23).
6. The easily drainable roadbed pavement according to claim 1, characterized in that: The drain hole of the drain grate (1) is positioned opposite to the upper part of the top of the blocking drain block (21), and the water flows along the top end face of the blocking drain block (21).
7. The easily drainable roadbed pavement according to claim 1, characterized in that: The length and width of the filter screen (22) are both greater than the drainage block (21), and the filter screen (22) is located above the drainage ditch (11).