Simulation apparatus based on continuous single drop rainfall
By designing a continuous single-drop rainfall simulation experimental device, the problems of soil loss and parameter adjustment in traditional devices were solved, and the independent adjustment of single drop volume, falling height and frequency was realized, which improved the accuracy and convenience of the simulation experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHEAST FORESTRY UNIV
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional rainfall simulation devices struggle to accurately control individual droplet parameters, leading to soil particle loss, and they cannot independently adjust the volume, drop height, and frequency of individual drops.
The design incorporates a continuous single-drop rainfall simulation device, including a splash erosion measurement mechanism, a photography mechanism, and a rainfall mechanism. Filter paper and splash cups are used to prevent soil loss, and raindrop parameters are adjusted by a lifting seat. The splash disk is fixed by a positioning angle to achieve independent adjustment of single-drop volume, drop height, and frequency.
It effectively protects soil particles, improves the accuracy and convenience of simulation experiments, allows for independent adjustment of raindrop parameters, prevents splash disk swaying, and ensures accurate soil landing point.
Smart Images
Figure CN224535964U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of environmental simulation experimental equipment, specifically relating to a simulation experimental device based on continuous single-drop rainfall. Background Technology
[0002] Rainfall simulation experiments are a key technology in environmental science, agricultural engineering, geological disaster prevention and control, and material durability research. Its core objective is to explore the impact mechanism of rainfall on soil erosion, plant growth, slope stability and material surface properties by artificially reproducing natural rainfall processes. It is widely used in scenarios such as soil and water loss law research, farmland irrigation efficiency testing and building exterior wall waterproofing performance evaluation.
[0003] However, traditional rainfall simulation devices mostly use spray or array nozzles, which cannot accurately control single drop parameters and make it difficult to independently adjust the volume, drop height and frequency of a single drop. At the same time, soil particles are easily lost during the simulation process. Therefore, the applicant proposes a simulation experimental device based on continuous single drop rainfall to solve the above problems. Utility Model Content
[0004] The purpose of this invention is to provide a simulation experimental device based on continuous single-drop rainfall, which can adjust the raindrop parameters and height, and can independently adjust the volume, falling height and frequency of a single drop. At the same time, it adopts a loss-prevention design with filter paper and splash cup, which can effectively prevent soil particles from being lost during the simulation process, bringing more convenience to the simulation experiment.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] The simulation experimental setup based on continuous single-drop rainfall includes:
[0007] The splash erosion measuring mechanism and the photography mechanism mounted around the splash erosion measuring mechanism, as well as the rainfall mechanism mounted on one side of the splash erosion measuring mechanism;
[0008] The splash erosion measuring mechanism includes a base, a splash disk placed on top of the base, a splash cup placed at the center of the top of the base through a limiting groove, filter paper placed between the bottom of the splash cup and the limiting groove, and a support frame fixedly installed on one side of the base.
[0009] The photographic mechanism includes a first support plate fixedly installed on the other side of the base and a second support plate fixedly installed at the rear end of the base. A high-speed camera corresponding to the splash cup is installed on the top of the first support plate, and a single-lens reflex camera corresponding to the splash plate is installed on the top of the second support plate.
[0010] The rainfall mechanism includes a support column fixedly installed on the top of the support frame, a lifting seat slidably installed on one side of the support column, and a drip head corresponding to the splash cup fixedly installed on the top of the lifting seat.
[0011] Preferably, positioning corners are fixedly installed at the four corners of the top of the base, and the splash plate is a square smooth white board with four equal sides.
[0012] Preferably, a fill light is fixedly installed on the top of the support frame, and the fill light is distributed relative to the high-speed camera.
[0013] Preferably, a first slide block is slidably mounted on the top of the first support plate, and the high-speed camera is fixedly mounted to the first slide block via a first telescopic frame.
[0014] Preferably, a second slide block is slidably mounted on the top of the second support plate, and the SLR camera is fixedly mounted to the second slide block via a second telescopic bracket.
[0015] Preferably, the support column and the lifting seat are slidably installed together by a sliding sleeve, and a threaded rotating rod is rotatably installed on the other side of the support column, and the threaded rotating rod and the sliding sleeve are connected by a threaded engagement.
[0016] Preferably, the front end of the support column is engraved with scale lines, and the front end of the sliding sleeve is provided with an indicator hole corresponding to the scale lines, and the indicator hole and the raindrop head are on the same horizontal plane.
[0017] Preferably, a peristaltic pump and a water storage tank are fixedly installed on the top of the lifting seat, and the peristaltic pump, the water storage tank, and the drip head are interconnected.
[0018] Compared with the prior art, the beneficial effects of this utility model are:
[0019] (1) This utility model is equipped with a splash erosion measurement mechanism and a rainfall mechanism that work together. By placing filter paper at the bottom of the splash cup, the soil can be effectively intercepted to avoid soil particles from being lost. At the same time, the splash plate can be quickly installed and disassembled, making it easy to replace and clean. The rainfall mechanism can adjust the raindrop parameters and height, and can independently adjust the volume, falling height and frequency of a single drop, bringing more convenience to the simulation experiment.
[0020] (2) The present invention is provided with positioning angles, which can position the four corners of the splash plate when installing the splash plate, which can facilitate the quick installation of the splash plate. At the same time, the positioning angles can limit the four corners of the splash plate to prevent the splash plate from shaking, avoid affecting the landing position of the soil splash, and improve the accuracy. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the splash erosion measurement mechanism of this utility model;
[0023] Figure 3 This is a schematic diagram of the base structure of this utility model;
[0024] Figure 4 This is a schematic diagram of the photographic mechanism structure of this utility model;
[0025] Figure 5 This is a schematic diagram of the rainfall mechanism of this utility model;
[0026] In the diagram: 1. Splash erosion measuring mechanism; 11. Base; 12. Positioning angle; 13. Splash disk; 14. Splash cup; 15. Support frame; 16. Fill light; 17. Limiting groove; 18. Filter paper; 2. Photography mechanism; 21. First support plate; 22. First slide; 23. First telescopic frame; 24. High-speed camera; 25. Second support plate; 26. Second slide; 27. Second telescopic frame; 28. SLR camera; 3. Rainfall mechanism; 31. Support column; 32. Threaded rotating rod; 33. Sliding sleeve; 34. Indicator hole; 35. Lifting seat; 36. Raindrop head; 37. Water storage tank; 38. Peristaltic pump; 39. Scale line. Detailed Implementation
[0027] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] Example 1:
[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the simulation experimental setup based on continuous single-drop rainfall includes:
[0032] The splash erosion measuring mechanism 1 and the photography mechanism 2 mounted on the periphery of the splash erosion measuring mechanism 1, and the rainfall mechanism 3 mounted on one side of the splash erosion measuring mechanism 1;
[0033] The splash erosion measuring mechanism 1 includes a base 11, a splash disk 13 is placed on the top of the base 11, a splash cup 14 is placed at the center of the top of the base 11 through a limiting groove 17, a filter paper 18 is placed between the bottom of the splash cup 14 and the limiting groove 17, and a support frame 15 is fixedly installed on one side of the base 11.
[0034] The photography mechanism 2 includes a first support plate 21 fixedly installed on the other side of the base 11 and a second support plate 25 fixedly installed at the rear end of the base 11. A high-speed camera 24 corresponding to the splash cup 14 is installed on the top of the first support plate 21, and an SLR camera 28 corresponding to the splash plate 13 is installed on the top of the second support plate 25.
[0035] The rain-making mechanism 3 includes a support column 31 fixedly installed on the top of the support frame 15, a lifting seat 35 slidably installed on one side of the support column 31, and a raindrop head 36 corresponding to the splash cup 14 fixedly installed on the top of the lifting seat 35.
[0036] As can be seen from the above, when in use, filter paper 18 is placed in limiting groove 17, the center of limiting groove 17 is hollow, and splash cup 14 containing soil is placed in limiting groove 17, so that the bottom of splash cup 14 can press down on filter paper 18. The bottom of splash cup 14 has a through hole so that water can flow downward. The limiting groove 17 can prevent splash cup 14 from shifting. Splash plate 13 is placed around splash cup 14 so that splash plate 13 is placed on base 11 for support.
[0037] By using the lifting seat 35 to slide up and down along the support column 31, the height between the raindrop head 36 and the splash cup 14 can be easily adjusted. The falling height of the raindrops can be easily adjusted according to the simulation requirements. It can measure the diameter of the raindrops and the impact speed of the raindrops on the soil under different rainfall amounts. By delivering water into the raindrop head 36, the water drips down into the splash cup 14 in a raindrop pattern, which can impact the soil and splash out. The splashed soil particles can be scattered on the splash plate 13, which can simulate the impact effect of single drop rainfall on the soil. The high-speed camera 24 can easily capture the splash erosion process, and the SLR camera 28 can periodically capture the distribution of the soil impact points on the surface of the splash plate 13.
[0038] Depend on Figure 3 It can be seen that positioning angles 12 are fixedly installed at the four corners of the top of the base 11, and the splash plate 13 is a square smooth white board with four equal sides.
[0039] As can be seen from the above, by using the positioning angle 12 to position the four corners of the splash plate 13 during installation, the splash plate 13 can be quickly installed. At the same time, the positioning angle 12 can limit the four corners of the splash plate 13, preventing the splash plate 13 from shaking and avoiding affecting the landing position of the soil splash, thus improving the accuracy. Since the splash plate 13 is a square smooth white plate with four equal sides, the distribution of soil landing points can be clearly observed when soil particles fall on the splash plate 13.
[0040] For details, please refer to Figure 2 As shown, a fill light 16 is fixedly installed on the top of the support frame 15, and the fill light 16 is distributed relative to the high-speed camera 24.
[0041] As can be seen from the above, the supplementary light 16 can be used to provide supplementary lighting when soil splashes, so that the high-speed camera 24 can clearly capture the splash erosion process.
[0042] For details, please refer to Figure 4 As shown, a first slide block 22 is slidably mounted on the top of the first support plate 21, and the high-speed camera 24 is fixedly mounted to the first slide block 22 via a first telescopic frame 23.
[0043] As can be seen from the above, the first slide block 22 can slide along the first support plate 21, which can conveniently adjust the distance between the high-speed camera 24 and the splash cup 14. The height of the high-speed camera 24 can be conveniently adjusted through the up and down extension function of the first telescopic frame 23, and can be adjusted according to shooting needs.
[0044] Example 2:
[0045] refer to Figure 4As shown, a second slide block 26 is slidably mounted on the top of the second support plate 25, and the SLR camera 28 is fixedly mounted to the second slide block 26 via a second telescopic bracket 27.
[0046] As can be seen from the above, the second slide block 26 can slide along the second support plate 25, which makes it easy to adjust the position of the SLR camera 28 on the splash plate 13. The height of the SLR camera 28 can be easily adjusted by the up and down extension function of the second telescopic frame 27, so as to take pictures of the soil particle distribution on the surface of the splash plate 13 from a suitable position.
[0047] refer to Figure 5 As shown, the support column 31 and the lifting seat 35 are slidably installed together by the sliding sleeve 33. A threaded rotating rod 32 is rotatably installed on the other side of the support column 31, and the threaded rotating rod 32 and the sliding sleeve 33 are connected by a threaded engagement.
[0048] As can be seen from the above, by rotating the threaded rod 32, the sliding sleeve 33 can be easily driven to slide up and down along the support column 31, which can easily drive the lifting seat 35 to move up and down synchronously, and the rain head 36 can be adjusted to different heights to simulate the height of raindrop descent according to experimental requirements.
[0049] refer to Figure 5 As shown, the front end of the support column 31 is engraved with a scale line 39, and the front end of the sliding sleeve 33 is provided with an indicator hole 34 corresponding to the scale line 39. The indicator hole 34 and the raindrop head 36 are on the same horizontal plane.
[0050] As can be seen from the above, when the sliding sleeve 33 moves up and down, the value on the scale line 39 can be matched through the indicator hole 34, which can conveniently and accurately adjust the rain head 36 to the specified height position, thus improving the accuracy.
[0051] refer to Figure 5 As shown, a peristaltic pump 38 and a water storage tank 37 are fixedly installed on the top of the lifting seat 35, and the peristaltic pump 38, the water storage tank 37 and the drip head 36 are interconnected.
[0052] As can be seen from the above, the water storage tank 37 can conveniently store the water source required for rainfall simulation, and the peristaltic pump 38 can be used to simulate continuous single-drop rainfall. The flow rate of the raindrops and the rainfall intensity can be adjusted by the valve on the peristaltic pump 38, so that the simulation parameters can be adjusted according to the experimental requirements.
[0053] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A simulation experimental device based on continuous single-drop rainfall, characterized in that, include: The splash erosion measuring mechanism (1) and the photography mechanism (2) assembled around the splash erosion measuring mechanism (1), and the rainfall mechanism (3) assembled on one side of the splash erosion measuring mechanism (1); The splash erosion measuring mechanism (1) includes a base (11), a splash disk (13) is placed on the top of the base (11), a splash cup (14) is placed at the center of the top of the base (11) through a limiting groove (17), a filter paper (18) is placed between the bottom of the splash cup (14) and the limiting groove (17), and a support frame (15) is fixedly installed on one side of the base (11). The photography mechanism (2) includes a first support plate (21) fixedly installed on the other side of the base (11) and a second support plate (25) fixedly installed at the rear end of the base (11). A high-speed camera (24) corresponding to the splash cup (14) is installed on the top of the first support plate (21), and an SLR camera (28) corresponding to the splash plate (13) is installed on the top of the second support plate (25). The rainfall mechanism (3) includes a support column (31) fixedly installed on the top of the support frame (15), a lifting seat (35) is slidably installed on one side of the support column (31), and a drip head (36) corresponding to the splash cup (14) is fixedly installed on the top of the lifting seat (35).
2. The simulation experimental device based on continuous single-drop rainfall according to claim 1, characterized in that: Positioning corners (12) are fixedly installed at the four corners of the top of the base (11), and the splash plate (13) is a square smooth white board with four equal sides.
3. The simulation experimental device based on continuous single-drop rainfall according to claim 1, characterized in that: A fill light (16) is fixedly installed on the top of the support frame (15), and the fill light (16) is distributed relative to the high-speed camera (24).
4. The simulation experimental device based on continuous single-drop rainfall according to claim 1, characterized in that: A first slide block (22) is slidably mounted on the top of the first support plate (21), and the high-speed camera (24) is fixedly mounted to the first slide block (22) via a first telescopic frame (23).
5. The simulation experimental device based on continuous single-drop rainfall according to claim 1, characterized in that: A second slide block (26) is slidably mounted on the top of the second support plate (25), and the SLR camera (28) is fixedly mounted to the second slide block (26) via a second telescopic bracket (27).
6. The simulation experimental device based on continuous single-drop rainfall according to claim 1, characterized in that: The support column (31) and the lifting seat (35) are slidably installed through a sliding sleeve (33). A threaded rotating rod (32) is rotatably installed on the other side of the support column (31). The threaded rotating rod (32) and the sliding sleeve (33) are connected by a threaded engagement.
7. The simulation experimental device based on continuous single-drop rainfall according to claim 6, characterized in that: The front end of the support column (31) is engraved with scale lines (39), and the front end of the sliding sleeve (33) is provided with an indicator hole (34) corresponding to the scale lines (39). The indicator hole (34) and the raindrop head (36) are on the same horizontal plane.
8. The simulation experimental device based on continuous single-drop rainfall according to claim 1, characterized in that: The top of the lifting seat (35) is fixedly equipped with a peristaltic pump (38) and a water storage tank (37), and the peristaltic pump (38), the water storage tank (37) and the drip head (36) are interconnected.