Pavement drainage function testing device
By designing a pavement drainage function test device including test frame, placement plate, drain port, sealing strip and abutment plate, the problem of inaccurate test results of asphalt test plates in the prior art is solved, and a more accurate pavement drainage performance evaluation is achieved.
Patent Information
- Application Number
- CN202420713871.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-04-09
AI Technical Summary
In the prior art, when using asphalt test boards for road drainage function tests, the results are not accurate enough because the water on the asphalt test board is easily discharged quickly to both sides, resulting in the test results that are inconsistent with the actual road drainage situation.
A road surface drainage function test device is designed, including a test frame, a placement plate, a drain port, a sealing strip and abutment plate. By placing the asphalt test plate on the placement plate inside the test frame, and using the combination of the sealing strip and the abutment plate, the discharge direction of water is controlled so that the water flows more along the surface of the test plate and discharges through the drain port.
Through this device, the drainage performance of the asphalt test board is more realistic, the test results are more accurate, and the drainage function of the road surface can be better simulated and evaluated.
Smart Images
Figure CN222926592U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pavement performance tests, and particularly relates to a pavement drainage function test device. Background Technique
[0002] With the acceleration of the urbanization process, the urban road area has increased significantly. The traditional asphalt pavement is impermeable, resulting in a large amount of rainwater accumulating on the road surface, seriously affecting the urban drainage system. In response to this problem, a brand-new road material has emerged, namely permeable asphalt. Permeable asphalt is made by adding a certain proportion of additives to the asphalt mixture, making it have certain water permeability. Rainwater can directly penetrate into the ground from the road surface, playing a role in suppressing water accumulation. The greatest advantage of permeable asphalt is that it can effectively solve the problem of urban waterlogging. It allows rainwater to achieve a "direct train" from the road surface to the ground, no longer accumulating on the road surface and affecting traffic.
[0003] Permeable asphalt mainly has two functions: one is to improve the anti-skid performance of the road surface. Part of the rainwater directly penetrates into the ground and is not easy to accumulate in puddles on the roadside; the other is to reduce the burden on the urban drainage system. Rainwater can quickly penetrate into the ground, reducing the impact of runoff on the pipe network. Permeable asphalt makes rainwater quickly "disappear" from the road surface, alleviating the waterlogging problem of traditional asphalt pavements.
[0004] The pavement with permeable asphalt has a good drainage function. Sometimes, people will pour an asphalt test plate to test whether the function of the asphalt pavement meets the standard. The asphalt test plate is placed obliquely, a water retaining plate is set at the lowest inclined end of the asphalt test plate, and a drainage port is opened on the water retaining plate. The drainage port is used to simulate the drainage port of the road surface. Then, the asphalt test plate is sprayed, and the waterlogging situation inside the water retaining plate and the required drainage time are observed or measured. The lower the water level inside the water retaining plate and the shorter the drainage time, the better the drainage function of the asphalt test plate. This method is relatively simple, but the water on the asphalt test plate is easy to spread to both ends of the water retaining plate and drain from the asphalt test plate, which does not conform to the actual drainage situation of the road surface. The water on the actual road surface usually flows towards the roadside direction, while the water on the asphalt test plate can be quickly drained from both sides, resulting in a stronger drainage function of the asphalt test plate in the test than the actual situation, and the test results are not accurate enough. Content of the Utility Model
[0005] The purpose of the utility model is to provide a pavement drainage function test device to solve the problem that the test results of the asphalt test plate in the related technology are not accurate enough.
[0006] The utility model is realized through the following technical solutions:
[0007] A road drainage function test device comprises a test frame, wherein a placement plate for placing an asphalt test plate is arranged at the lower part of the inner side wall of the test frame, a notch is arranged in the middle part of the placement plate, a drainage port is arranged on one side frame of the test frame, a first sealing strip is arranged on the inner side wall of the frame of one side of the test frame close to the drainage port along the length direction of the corresponding frame, abutment plates are arranged on the placement plates on the inner sides of two frames of the test frame adjacent to the first sealing strip, the two abutment plates are parallel to the corresponding frames, and a second sealing strip is arranged on one side wall of the two abutment plates along the length direction of the corresponding abutment plates, abutment bolts are threadedly connected on the frame of the test frame opposite to the drainage port, one end of the abutment bolts passes through the frame of the test frame and is located inside the test frame, abutment bolts are threadedly connected on the corresponding frames of the test frame beside the two abutment plates, the two abutment bolts pass through the test frame and face the corresponding abutment plates, the lower part of the drainage port is flush with the upper part of the first sealing strip, and the distance from the first sealing strip to the upper part of the test frame is greater than the distance from the two abutment plates to the upper part of the test frame.
[0008] Furthermore, one end of the two abutment bolts located on the inner side of the test frame is rotatably connected to the outer wall of the corresponding abutment plate, and the two second sealing strips are located on a side of the corresponding abutment plate away from the corresponding abutment bolt.
[0009] Furthermore, bearings are provided on the sides of the two abutment plates facing away from the corresponding second sealing strips, connecting rods are provided on the ends of the two abutment bolts located on the inner side of the test frame, the two connecting rods are coaxially connected to the screw rods of the corresponding abutment bolts, and the ends of the two connecting rods away from the corresponding abutment bolts extend to the inner ring of the corresponding bearing.
[0010] Furthermore, it also includes a water collecting box, in which a mounting frame is arranged, the test frame is obliquely mounted on the mounting frame, and the drain outlet of the test frame is located at the lowest end of the inclination.
[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:
[0012] In the present utility model, first place the test frame horizontally on the ground, then place the asphalt test plate on the placement plate inside the test frame, and then rotate the fastening bolt so that the fastening bolt abuts against the asphalt test plate and the asphalt test plate abuts against the first sealing strip. Then rotate the abutting bolts on both sides so that the two abutting bolts clamp the asphalt test plate. At this time, place the test frame obliquely so that the drain outlet of the test frame is at the lowest end of the inclination. At this time, the asphalt test plate can be sprayed with water through the spray head to simulate rainfall. After the clear water falls on the asphalt test plate, a part of the water directly penetrates the asphalt test plate and then drains downward, and another part of the water flows downward along the surface of the asphalt test plate and is discharged through the drain outlet below. The less water accumulates on the asphalt test plate, the better the drainage performance of the asphalt test plate. The faster the accumulated water is discharged, the better the drainage performance of the asphalt test plate. The two second sealing strips and the two abutting plates can reduce the situation that the water on the asphalt test plate directly drains to both sides, making the drainage of the asphalt test plate more in line with the actual situation, and thus making the drainage test result more accurate. Description of the Drawings
[0013] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model.
[0014] In the drawings:
[0015] Figure 1 is a partial structural diagram of Embodiment 1 of the present utility model;
[0016] Figure 2 is a structural schematic diagram of Embodiment 1 of the present utility model.
[0017] Marks in the drawings and corresponding component names:
[0018] 1. Test frame; 2. Placement plate; 3. Notch; 4. Drain outlet; 5. First sealing strip; 6. Abutting plate; 7. Second sealing strip; 8. Fastening bolt; 9. Abutting bolt; 10. Water collection tank; 11. Mounting frame; 12. Asphalt test plate. Detailed Embodiment
[0019] To make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in combination with embodiments and drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and do not constitute a limitation to the present utility model. It should be noted that the present utility model has been in the actual R & D and use stage.
[0020] Embodiment 1
[0021] A pavement drainage function test device, referring to Figure 1 、Figure 2 , including a test frame. A placement plate for placing an asphalt test plate is provided at the lower part of the inner side wall of the test frame. A notch is provided in the middle of the placement plate. A drain port is opened on one side frame of the test frame. A first sealing strip is arranged along the length direction of the corresponding frame on the inner side wall of the side frame of the test frame close to the drain port. Contact plates are placed on the placement plates on the inner sides of the two frames of the test frame adjacent to the first sealing strip. Both contact plates are parallel to the corresponding frames. Second sealing strips are arranged along the length direction of the corresponding contact plates on one side walls of the two contact plates. A tightening bolt is threadedly connected to the frame of the test frame opposite to the drain port. One end of the tightening bolt passes through the frame of the test frame and is located inside the test frame. Contact bolts are threadedly connected to the corresponding frames of the test frame beside the two contact plates. The two contact bolts pass through the test frame and face the corresponding contact plates. The lower part of the drain port is flush with the upper part of the first sealing strip. The distance from the first sealing strip to the upper part of the test frame is greater than the distance from the two contact plates to the upper part of the test frame.
[0022] When conducting the test, first place the test frame horizontally on the ground, then place the asphalt test plate on the placement plate inside the test frame, and then rotate the tightening bolt so that the tightening bolt abuts against the asphalt test plate and the asphalt test plate abuts against the first sealing strip. Then rotate the contact bolts on both sides so that the two contact bolts clamp the asphalt test plate. At this time, place the test frame obliquely so that the drain port of the test frame is at the lowest inclined end. At this time, the asphalt test plate can be sprayed with water through a sprinkler head to simulate rainfall. After the clear water falls on the asphalt test plate, part of the water directly penetrates the asphalt test plate and then drains downward. The water that penetrates the asphalt test plate can drain downward through the notch on the placement plate. Another part of the water flows downward along the surface of the asphalt test plate and is discharged through the lower drain port. The less water accumulates on the asphalt test plate, the better the drainage performance of the asphalt test plate. The faster the accumulated water is discharged, the better the drainage performance of the asphalt test plate. The two second sealing strips and the two contact plates can reduce the situation that the water on the asphalt test plate directly discharges to both sides, making the drainage of the asphalt test plate more in line with the actual situation, and thus making the drainage test result more accurate.
[0023] As a preferred implementation manner, referring to Figure 1 , Figure 2, the ends of the two abutment bolts located on the inner side of the test frame are rotatably connected to the outer wall of the corresponding abutment plate, and the two second sealing strips are located on the side of the corresponding abutment plate away from the corresponding abutment bolt. Specifically, the two abutment plates are provided with bearings on the side away from the corresponding second sealing strips, and the ends of the two abutment bolts located on the inner side of the test frame are provided with connecting rods, and the two connecting rods are coaxially connected to the screw rods of the corresponding abutment bolts, and the ends of the two connecting rods away from the corresponding abutment bolts extend to the inner ring of the corresponding bearing, and the outer wall of the connecting rod and the inner ring of the corresponding bearing are transitionally matched. This allows the two abutment plates to be connected to the test frame as a whole, reducing the possibility of the abutment plates being scattered or lost.
[0024] As a preferred embodiment, refer to Figure 1 , Figure 2 The test device also includes a water collecting tank, in which a mounting frame is provided. The test frame is installed on the mounting frame at an angle, and the drainage outlet of the test frame is located at the lowest end of the inclination. The entire test frame is installed inside the water collecting tank, and then water is sprayed on the asphalt test plate, so that the discharged water can be collected through the water collecting tank, which is convenient for recycling water resources and reducing water waste.
[0025] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.
Claims
1. A road drainage function test device, characterized in that: The invention comprises a test frame (1), wherein a placement plate (2) for placing an asphalt test plate (12) is arranged at the lower part of the inner side wall of the test frame (1), a notch (3) is arranged in the middle part of the placement plate (2), a drainage port (4) is arranged on one side frame of the test frame (1), a first sealing strip (5) is arranged on the inner side wall of the frame of one side of the test frame (1) close to the drainage port (4) along the length direction of the corresponding frame, and abutment plates (6) are arranged on the placement plates (2) on the inner sides of two frames of the test frame (1) adjacent to the first sealing strip (5), the two abutment plates (6) are parallel to the corresponding frames, and one side wall of the two abutment plates (6) is arranged along the length direction of the corresponding abutment plates (6). A second sealing strip (7) is provided in the length direction. A tightening bolt (8) is threadedly connected to the frame of the test frame (1) directly opposite to the drain outlet (4). One end of the tightening bolt (8) passes through the frame of the test frame (1) and is located inside the test frame (1). An abutment bolt (9) is threadedly connected to the corresponding frames of the test frame (1) beside the two abutment plates (6). The two abutment bolts (9) pass through the test frame (1) and face the corresponding abutment plates (6). The lower part of the drain outlet (4) is flush with the upper part of the first sealing strip (5). The distance from the first sealing strip (5) to the upper part of the test frame (1) is greater than the distance from the two abutment plates (6) to the upper part of the test frame (1).
2. The road surface drainage function test device according to claim 1, characterized in that: One end of the two abutment bolts (9) located inside the test frame (1) is rotatably connected to the outer wall of the corresponding abutment plate (6), and the two second sealing strips (7) are located on the side of the corresponding abutment plate (6) away from the corresponding abutment bolts (9).
3. The road surface drainage function test device according to claim 1, characterized in that: A bearing is provided on one side of the two abutment plates (6) facing away from the corresponding second sealing strip (7), and a connecting rod is provided on one end of the two abutment bolts (9) located on the inner side of the test frame (1). The two connecting rods are coaxially connected to the screw rod of the corresponding abutment bolt (9), and the ends of the two connecting rods away from the corresponding abutment bolt (9) extend to the inner ring of the corresponding bearing.
4. The road surface drainage function test device according to claim 1, characterized in that: It also comprises a water collecting box (10), wherein a mounting frame (11) is arranged inside the water collecting box (10), the test frame (1) is obliquely mounted on the mounting frame (11), and the drainage port (4) of the test frame (1) is located at the lowest end of the inclination.