Adjustable runoff scouring test bed for water and soil conservation experiment

Abstract

The utility model relates to the technical field of water and soil conservation experiment, and disclose a kind of adjustable runoff scouring test bench for water and soil conservation experiment, including experiment table, the upper end of experiment table is equipped with scouring structure, the inside of experiment table is also equipped with sample containing structure, soil sample is placed in sample containing frame, then start pump body, water inside water tank can be pumped out, and spray out by connecting pipe, shunt pipe, scouring pipe and spray head, it can be completed to scouring test to soil sample in sample containing structure, in the process, with the filter screen one of setting can filter soil, while water can drop down through filter screen one, while starting reflux pump, cooperate with reflux pipe and catheter can be pumped back to water tank in the experiment table, water can be reused, save water resources, and when starting motor, rotatable shaft and bearing plate can be driven, the angle of sample containing frame can be adjusted, that is, the angle of soil sample can be changed.

Description

Technical Field

[0001] This utility model relates to the field of soil and water conservation experimental technology, specifically an adjustable runoff scour test bench for soil and water conservation experiments. Background Technology

[0002] The adjustable runoff scour test bench is a device used in soil and water conservation research to simulate different precipitation conditions and slope characteristics to study the soil erosion process. Its main function is to simulate the scouring effect of rainfall in the natural environment by adjusting parameters such as water flow velocity, flow rate, and slope, and to analyze soil erosion, loss, and the effectiveness of soil and water conservation measures.

[0003] For example, a multifunctional jet erosion test bench, as disclosed in announcement number CN217359449U, includes a frame and a test chamber disposed within the frame. The test chamber is open at the front end of the frame, and a sealing door for closing the test chamber is provided on the frame. A jet tube is disposed within the test chamber, and a specimen fixing frame is disposed below the jet tube. An angle adjustment seat is disposed within the test chamber, and the specimen fixing frame is disposed on top of the angle adjustment seat. This utility model provides a multifunctional jet erosion test bench that replaces traditional negative pressure erosion with jet tube erosion combined with an adjustable angle adjustment seat, thereby realizing multi-angle erosion. The vertical height and horizontal displacement can be adjusted by adjusting the adjustment plate and worm gear seat, thus solving the technical problems existing in the current erosion test bench. At the same time, this utility model has an ingenious design, reliable test structure, and is suitable for large-scale promotion and use.

[0004] The aforementioned patent proposes that the angle can be controlled by driving the wedge block to move and pushing the support plate to rotate through the drive cylinder. However, during the use of the scouring test bench, the water flows on the soil sample, and it is inconvenient to recycle the water after it flows off the soil, resulting in the water not being reused and causing water waste. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable runoff scour test bench for soil and water conservation experiments, in order to solve the problem mentioned in the background art that after water flows over the soil, it is inconvenient to recycle the water, resulting in the inability to reuse the water and causing water waste.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an adjustable runoff scour test bench for soil and water conservation experiments, comprising a test bench, an scour structure installed at the upper end of the test bench, and a sample holding structure installed inside the test bench. The sample holding structure is used to hold soil samples and, in conjunction with the scour structure, scours the soil samples.

[0007] The experimental platform has a groove inside, in which a filter screen is installed. A slope is installed on the bottom wall of the experimental platform. The filter screen is located below the sample holding structure. Soil flushed out of the sample holding structure can fall onto the filter screen and be blocked by it. At the same time, water can fall down through the filter screen. The flushing structure includes a water tank and a return component installed on the outer wall of the water tank. The return component is located between the water tank and the experimental platform. The water filtered in the experimental platform is returned to the water tank by the return component.

[0008] Preferably, the flushing structure further includes a water inlet frame, which is fixedly installed at the upper end of the water tank and communicates with the inside of the water tank. A second filter screen is installed on the inner side of the water inlet frame to filter impurities in the water. A flushing component is installed at the upper end of the water tank to flush the soil sample on the sample holding structure.

[0009] Preferably, the flushing component includes a connecting pipe and a diversion pipe connected to one end of the connecting pipe. The end of the connecting pipe away from the diversion pipe extends into the water tank and is connected to the pump body inside the water tank. Several flushing pipes are evenly distributed on one side of the diversion pipe, and several nozzles are evenly distributed at the lower end of the flushing pipe. When the pump body is started, water inside the water tank can be drawn out and sprayed out through the connecting pipe, diversion pipe, flushing pipe and nozzles.

[0010] Preferably, the reflux component includes a reflux pump and a conduit connected to one end of the reflux pump. The end of the conduit away from the reflux pump is inside the water tank, and the reflux pump is located outside the experimental platform. The other end of the reflux pump is connected to a reflux pipe, and the other end of the reflux pipe is inside the experimental platform. When the reflux pump is started, it can pump the water in the experimental platform back into the water tank in conjunction with the reflux pipe and the conduit.

[0011] Preferably, the sample holding structure includes a motor and a rotating shaft connected to the output end of the motor. The other end of the rotating shaft is connected to a support plate. A sample holding frame is installed on the upper end of the support plate. The sample holding frame is used to hold soil samples.

[0012] Preferably, a groove is provided on the side wall of the bearing plate, and a slide plate is slidably connected inside the groove. A baffle is installed at the upper end of the slide plate, and the baffle contacts the side wall of the sample holding frame and is fixed to the slide plate and the groove with bolts.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The experimental platform, flushing structure, and sample holding structure are designed to hold soil samples. The sample holding structure is used to flush the soil samples in conjunction with the flushing structure. The soil flushed out of the sample holding structure can fall onto the first filter screen and be blocked by the filter screen. At the same time, water can fall down through the first filter screen and be returned to the water tank in the experimental platform by the return flow device. The water can be reused and water waste can be reduced.

[0015] 2. By placing the sample container close to the support plate and pulling the baffle, the slide plate can slide in the groove and be fixed with bolts to complete the fixation of the sample container position. Attached Figure Description

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

[0017] Figure 2 This is a three-dimensional structural diagram of the flushing structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the flushing component of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the sample holding structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the experimental platform structure of this utility model.

[0021] In the diagram: 1. Experimental platform; 11. Groove; 12. Filter screen one; 13. Slope; 2. Flushing structure; 21. Water tank; 22. Water inlet frame; 23. Flushing component; 231. Connecting pipe; 232. Diverter pipe; 233. Flushing pipe; 234. Nozzle; 24. Return component; 241. Conduit; 242. Return pump; 243. Return pipe; 25. Filter screen two; 3. Sample holding structure; 31. Motor; 32. Rotating shaft; 33. Support plate; 331. Slide groove; 332. Slide plate; 333. Baffle; 34. Sample holding frame. Detailed Implementation

[0022] 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.

[0023] Example 1: Please refer to Figures 1-5An adjustable runoff scour test bench for soil and water conservation experiments includes a test bench 1, a scour structure 2 and a sample holding structure 3. The scour structure 2 is located at the upper end of the test bench 1, and the sample holding structure 3 is located inside the test bench 1 and below the scour structure 2. The sample holding structure 3 is used to hold soil samples and cooperates with the scour structure 2 to scour the soil samples.

[0024] The interior of the experimental platform 1 has a groove 11, in which a filter screen 12 for filtration is installed. A ramp 13 is installed on the bottom wall of the interior of the experimental platform 1. The filter screen 12 is located below the sample holding structure 3. Soil flushed out from the sample holding structure 3 can fall onto the filter screen 12 and be blocked by the filter screen 12. At the same time, water can fall down through the filter screen 12. The flushing structure 2 includes a water tank 21 and a return component 24 installed on the outer wall of the water tank 21. The return component 24 is located between the water tank 21 and the experimental platform 1. The water filtered in the experimental platform 1 is returned to the water tank 21 by the return component 24, which can reuse the water flow and reduce water waste.

[0025] The flushing structure 2 also includes a water inlet frame 22, which is fixedly installed at the upper end of the water tank 21. The water inlet frame 22 is connected to the inside of the water tank 21. A filter screen 25 is installed on the inner side of the water inlet frame 22. The filter screen 25 is used to filter impurities in the water. A flushing component 23 is installed at the upper end of the water tank 21. The flushing component 23 is used to flush the soil sample on the sample holding structure 3.

[0026] The flushing component 23 includes a connecting pipe 231 and a diversion pipe 232 connected to one end of the connecting pipe 231. The end of the connecting pipe 231 away from the diversion pipe 232 extends into the water tank 21 and is connected to the pump body inside the water tank 21. Several flushing pipes 233 are evenly distributed on one side of the diversion pipe 232, and several nozzles 234 are evenly distributed at the lower end of the flushing pipes 233. When the pump body is started, water inside the water tank 21 can be drawn out and sprayed out through the connecting pipe 231, the diversion pipe 232, the flushing pipes 233 and the nozzles 234, which can flush the soil sample in the sample holding structure 3.

[0027] The reflux unit 24 includes a reflux pump 242 and a conduit 241 connected to one end of the reflux pump 242. The end of the conduit 241 away from the reflux pump 242 is inside the water tank 21, and the reflux pump 242 is located outside the experimental platform 1. The other end of the reflux pump 242 is connected to a reflux pipe 243, and the other end of the reflux pipe 243 is inside the experimental platform 1. When the reflux pump 242 is started, it can pump the water in the experimental platform 1 back to the water tank 21 in conjunction with the reflux pipe 243 and the conduit 241, so that the water can be reused.

[0028] The sample holding structure 3 includes a motor 31 and a rotating shaft 32 connected to the output end of the motor 31. The other end of the rotating shaft 32 is connected to the support plate 33. A sample holding frame 34 is installed on the upper end of the support plate 33. The sample holding frame 34 is used to hold soil samples.

[0029] In this embodiment: the soil sample is placed in the sample holding frame 34, and then the pump is started to draw water out of the water tank 21 and spray it out through the connecting pipe 231, the diversion pipe 232, the flushing pipe 233 and the nozzle 234 to flush the soil sample in the sample holding structure 3, thus completing the flushing test. During the process, the soil sample will flow with the water flow. The filter screen 12 can filter the soil, and the water can fall down through the filter screen 12. At the same time, the return pump 242 is started, and with the return pipe 243 and the conduit 241, the water in the test platform 1 can be pumped back to the water tank 21, so that the water can be reused and water resources can be saved. When the motor 31 is started, the rotating shaft 32 and the support plate 33 can be driven to rotate, which can adjust the angle of the sample holding frame 34, thereby changing the angle of the soil sample and facilitating the test.

[0030] Example 2: This example is an improvement on Example 1. For details, please refer to [link / reference]. Figure 4 A groove 331 is provided on the side wall of the bearing plate 33. A slide plate 332 is slidably connected inside the groove 331. A baffle 333 is installed at the upper end of the slide plate 332. The baffle 333 contacts the side wall of the sample holding frame 34 and is fixed to the slide plate 332 and the groove 331 with bolts, so that the sample holding frame 34 can be fixed on the bearing plate 33.

[0031] In this embodiment: the sample holding frame 34 is brought close to the support plate 33, and the baffle 333 is pulled so that the slide plate 332 can slide in the slide groove 331 until the baffle 333 contacts the side wall of the sample holding frame 34 and is fixed with bolts. This completes the fixing of the position of the sample holding frame 34, which can be used to place soil samples.

[0032] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An adjustable runoff scour test bench for soil and water conservation experiments, comprising a test bench (1), characterized in that: The upper end of the experimental platform (1) is equipped with a flushing structure (2), and the interior of the experimental platform (1) is also equipped with a sample holding structure (3). The experimental platform (1) has a groove (11) inside, and a filter screen (12) for filtering is installed in the groove (11). A ramp (13) is installed on the bottom wall of the experimental platform (1). The filter screen (12) is located below the sample holding structure (3). Soil flushed out from the sample holding structure (3) can fall onto the filter screen (12). The flushing structure (2) includes a water tank (21) and a return component (24) installed on the outer wall of the water tank (21). The return component (24) is located between the water tank (21) and the experimental platform (1).

2. The adjustable runoff scour test bench for soil and water conservation experiments according to claim 1, characterized in that: The flushing structure (2) also includes a water inlet frame (22), which is fixedly installed on the upper end of the water tank (21). The water inlet frame (22) is connected to the inside of the water tank (21). A filter screen (25) is installed on the inner side of the water inlet frame (22). The filter screen (25) is used to filter impurities in the water. A flushing component (23) is installed on the upper end of the water tank (21).

3. The adjustable runoff scour test bench for soil and water conservation experiments according to claim 2, characterized in that: The flushing component (23) includes a connecting pipe (231) and a diversion pipe (232) connected to one end of the connecting pipe (231). The end of the connecting pipe (231) away from the diversion pipe (232) extends into the water tank (21) and is connected to the pump body inside the water tank (21). Several flushing pipes (233) are evenly distributed on one side of the diversion pipe (232), and several nozzles (234) are evenly distributed at the lower end of the flushing pipes (233).

4. The adjustable runoff scour test bench for soil and water conservation experiments according to claim 1, characterized in that: The reflux component (24) includes a reflux pump (242) and a conduit (241) connected to one end of the reflux pump (242). The end of the conduit (241) away from the reflux pump (242) is located inside the water tank (21), and the reflux pump (242) is located outside the experimental platform (1). The other end of the reflux pump (242) is connected to a reflux pipe (243), and the other end of the reflux pipe (243) is located inside the experimental platform (1).

5. The adjustable runoff scour test bench for soil and water conservation experiments according to claim 1, characterized in that: The sample holding structure (3) includes a motor (31) and a rotating shaft (32) connected to the output end of the motor (31). The other end of the rotating shaft (32) is connected to the support plate (33), and a sample holding frame (34) is installed on the upper end of the support plate (33).

6. An adjustable runoff scour test bench for soil and water conservation experiments according to claim 5, characterized in that: The side wall of the bearing plate (33) is provided with a sliding groove (331), and a sliding plate (332) is slidably connected inside the sliding groove (331). A baffle (333) is installed at the upper end of the sliding plate (332).

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