Wind and sand erosion experimental device and system

Abstract

The utility model relates to the technical field of erosion experiment, concretely relates to a wind -sand erosion experiment device and system. Wind -sand erosion experiment device includes main part, manual regulating component and sand spraying subassembly, and is configured with experiment bin in main part, and manual regulating component is placed in experiment bin, and sand spraying subassembly is connected with manual regulating component, and manual regulating component is used for driving sand spraying subassembly to move in experiment bin under the action of external force. The wind -sand erosion experiment device is applied to the wind -sand erosion experiment system, and its simple structure is convenient to use, can reduce experiment cost, operation difficulty and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of erosion experimental technology, and more specifically, to a wind and sand erosion experimental device and system. Background Technology

[0002] Erosion wear is a common failure mode of materials in two-phase flow environments such as sandstorms and mud slurries, and it has a significant impact on the service life of equipment in industries such as construction, energy, and machinery. To study the erosion resistance of materials, airflow-entrained sand jetting tests are an important simulation method.

[0003] However, the high manufacturing and maintenance costs of existing sand-carrying jet test equipment limit its widespread application in small and medium-sized laboratories and teaching environments with limited budgets. Secondly, the introduction of complex electrical and control systems leads to a higher failure rate and requires professional personnel for adjustment and maintenance, resulting in a high operating threshold. Utility Model Content

[0004] The purpose of this invention is to provide an experimental device and system for wind and sand erosion, which has a simple structure, is easy to use, and can reduce experimental costs, operational difficulties, and maintenance costs.

[0005] The embodiments of this utility model can be implemented as follows: In the first aspect, this utility model provides a wind and sand erosion experimental device, which includes a main body, a manual adjustment component, and a sand spraying component. The main body is equipped with an experimental chamber, and the manual adjustment component is placed inside the experimental chamber. The sandblasting component is connected to the manual adjustment component, which is used to drive the sandblasting component to move inside the experimental chamber under the action of external force.

[0006] In an optional embodiment, the wind and sand erosion experimental apparatus also includes a mounting frame and a placement platform; The placement platform is connected to the main body and is located inside the experimental chamber; the mounting frame is connected to the placement platform, the manual adjustment component is connected to the mounting frame, and the manual adjustment component is located directly above the placement platform.

[0007] In an optional embodiment, the placement platform is a perforated plate, and the wind and sand erosion experimental device also includes a sand collection box disposed below the placement platform.

[0008] In an optional implementation, the manual adjustment assembly includes a mounting platform, a lead screw, a guide rod, a movable block, and an operating handle; The mounting platform is connected to the mounting bracket; the rotating screw is rotatably connected to the mounting platform; the guide rod is connected to the mounting platform, and the guide rod and the rotating screw are set parallel and spaced apart; the movable block is threadedly connected to the rotating screw and slidably connected to the guide rod; the operating handle is connected to the end of the rotating screw. The sandblasting component is connected to the movable block.

[0009] In an optional embodiment, connecting platforms are provided at both ends of the mounting platform along the axial direction of the rotating lead screw. The two ends of the rotating lead screw are rotatably connected to two connecting platforms via bearings, and the two ends of the guide rod are fixedly connected to the two connecting platforms.

[0010] In an optional embodiment, the manual adjustment component further includes a connecting block, which includes a first connecting part and a second connecting part. The first connecting part and the second connecting part are arranged perpendicularly, and the first connecting part is connected to the movable block, while the second connecting part is connected to the sandblasting component. The first connecting part is connected to the upper end face of the movable block, and the second connecting part is located on the side of the mounting platform.

[0011] In an optional embodiment, the sandblasting assembly includes a mounting rod, a sandblasting gun holder, and a sandblasting gun. One end of the mounting rod is connected to the second connecting part, and the other end of the mounting rod is connected to the sandblasting gun holder, which is used to fix the sandblasting gun.

[0012] In an alternative embodiment, the mounting rod extends vertically, and the sandblasting gun holder is slidably connected to the mounting rod.

[0013] In an optional embodiment, the sandblasting gun fixing component includes a clamp-type pipe clamp and a sandblasting gun clamp connected to the clamp-type pipe clamp. The clamp-type pipe clamp is fitted onto the mounting rod; the sandblasting gun clamp is used to fix the sandblasting gun.

[0014] Secondly, this utility model provides a wind and sand erosion test system, which includes an air supply component, a sand supply component, and the aforementioned wind and sand erosion test device. The air supply assembly includes an air compressor, an air tank, and a compressed air pipe. The air inlet of the air tank is connected to the air outlet of the air compressor, one end of the compressed air pipe is connected to the air outlet of the air tank, and the other end is connected to the sandblasting gun. The sand supply assembly includes a sand supply box, a sand discharge pipe, and a sand conveying pipe; the two ends of the sand discharge pipe are connected to the sand supply box and the sand conveying pipe, respectively, and the sand conveying pipe is connected to the sand blasting gun.

[0015] The beneficial effects of the wind and sand erosion experimental device and system provided in this embodiment of the present invention include: This wind and sand erosion experimental device includes a main body, a manual adjustment component, and a sand-spraying component. An experimental chamber is located within the main body, and the manual adjustment component is situated inside the chamber. The sand-spraying component is connected to the manual adjustment component, which is used to move the sand-spraying component within the experimental chamber under external force. This wind and sand erosion experimental device is applied to wind and sand erosion experimental systems. It features a simple structure, ease of use, and reduces experimental costs, operational complexity, and maintenance costs. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the wind and sand erosion experimental device provided in this embodiment; Figure 2 This is a schematic diagram of the wind and sand erosion experimental system provided in this embodiment; Figure 3 This is a structural schematic diagram of the manual adjustment component, sandblasting component, and mounting bracket provided in this embodiment from a first-view perspective. Figure 4 This is a structural schematic diagram of the manual adjustment component, sandblasting component, and mounting bracket provided in this embodiment from a second-view perspective. Figure 5 This is a structural schematic diagram of the manual adjustment component, sandblasting component, and mounting bracket provided in this embodiment from a third-view perspective. Figure 6 This is a structural schematic diagram of the manual adjustment component, sandblasting component, and mounting bracket provided in this embodiment from a fourth-view perspective.

[0018] Icons: 100-Wind and Sand Erosion Experimental Apparatus; 110-Main Body; 120-Manual Adjustment Component; 130-Sandblasting Component; 111-Experimental Chamber; 140-Mounting Frame; 150-Placement Platform; 160-Sand Collection Box; 121-Mounting Platform; 122-Rotating Screw; 123-Guide Rod; 124-Moving Block; 125-Operating Handle; 126-Connecting Platform; 127-Connecting Block; 131-Mounting Rod; 132-Sandblasting Gun Fixing Component; 133-Clamp-type Pipe Clamp; 134-Sandblasting Gun Clamp; 135-Sandblasting Gun; 200-Wind and Sand Erosion Experimental System; 210-Air Supply Component; 220-Sand Supply Component; 211-Air Compressor; 212-Air Storage Tank; 213-Compressed Air Pipe; 221-Sand Supply Box; 222-Sand Discharge Pipe; 223-Sand Material Conveying Pipe. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, 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. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are 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, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0024] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0025] Please refer to Figures 1-3 This embodiment provides a wind and sand erosion experimental device 100, which includes a main body 110, a manual adjustment component 120, and a sand spraying component 130. The main body 110 is equipped with an experimental chamber 111. The manual adjustment component 120 is placed inside the experimental chamber 111, and the sandblasting component 130 is connected to the manual adjustment component 120. The manual adjustment component 120 is used to drive the sandblasting component 130 to move inside the experimental chamber 111 under the action of external force.

[0026] Please refer to Figures 1-3 The working principle of the wind and sand erosion experimental device 100 is as follows: The wind and sand erosion experimental device 100 includes a main body 110, a manual adjustment component 120, and a sandblasting component 130; The main body 110 is equipped with an experimental chamber 111. A manual adjustment component 120 is placed inside the experimental chamber 111, and a sandblasting component 130 is connected to the manual adjustment component 120. The manual adjustment component 120 is used to drive the sandblasting component 130 to move within the experimental chamber 111 under the action of external force. Thus, when conducting an erosion experiment, after the test object is placed into the experimental chamber 111, the manual adjustment component 120 can be operated manually to drive the sandblasting component 130 to move within the experimental chamber 111, thereby adjusting the position of the sandblasting component 130 within the experimental chamber 111. This allows for adjustment of the sandblasting position of the test object within the experimental chamber 111, facilitating the completion of the sandblasting erosion experiment as required. Moreover, during the experiment, it can be manually adjusted, thereby reducing the electrical structure in the device. Therefore, when the wind and sand erosion experimental device 100 is applied to the wind and sand erosion experimental system 200, its structure is simple and easy to use, which can reduce experimental costs, operation difficulty and maintenance costs.

[0027] It should be noted that the wind erosion experimental device 100 reduces the number of electrical components, thereby lowering manufacturing and maintenance costs and facilitating its widespread application in small and medium-sized laboratories and teaching environments with limited budgets. Secondly, the reduction in electrical components and control systems lowers the device's failure rate and facilitates adjustment and maintenance, lowering the operational threshold. Furthermore, manual adjustment offers the advantages of quick and intuitive operation. Therefore, the wind erosion experimental device 100 is simple in structure, low in cost, easy to operate, stable in operation, and easy to maintain. It fills the market gap between high-end automated equipment and simple fixed devices, meeting the needs of a wider range of application scenarios.

[0028] Further, please refer to Figures 1-3 In this embodiment, to facilitate the placement of experimental objects in the experimental chamber 111, the wind and sand erosion experimental device 100 further includes a mounting frame 140 and a placement platform 150; the placement platform 150 is connected to the main body 110 and is located inside the experimental chamber 111; the mounting frame 140 is connected to the placement platform 150, the manual adjustment component 120 is connected to the mounting frame 140, and the manual adjustment component 120 is located directly above the placement platform 150.

[0029] Therefore, by configuring a placement platform 150 in the experimental chamber 111, it is convenient to set up the experimental object and the mounting frame 140. Moreover, when configuring the mounting frame 140, it is necessary to avoid positional interference with the experimental object, so that the range of motion of the manual adjustment component 120 driving the sandblasting component 130 will not interfere with the experimental object, and can also meet the experimental requirements.

[0030] Furthermore, to facilitate the collection of sand during the experiment, the placement platform 150 can be configured as a perforated plate, and the wind and sand erosion experimental device 100 also includes a sand collection box 160 located below the placement platform 150. Thus, during the sand erosion experiment, the sand in the experimental chamber 111 can fall through the mesh on the placement platform 150 and be collected in the sand collection box 160 below.

[0031] It should be noted that when configuring the placement platform 150, the placement platform 150 is placed at the bottom center of the experimental chamber 111. The placement platform 150 is made of porous steel plate and the surface is coated with elastic polymer material. The porosity of the steel plate facilitates the falling of the eroded sand and gravel into the sand collection box 160. The elastic polymer material on the surface of the placement platform 150 can reduce the erosion of the steel plate surface by high-speed sand and gravel.

[0032] As can be seen from the above, this embodiment uses a manual adjustment component 120. The purpose of this is to allow the user to manually adjust the position of the sandblasting component 130 within the experimental chamber 111. Therefore, the manual adjustment component 120 can be configured in various ways, and its direction of movement can be set according to requirements. In this embodiment, please refer to... Figures 1-6 The method adopted is to manually adjust component 120 to drive sandblasting component 130 to move in one direction; Specifically, the manual adjustment assembly 120 includes a mounting platform 121, a rotating screw 122, a guide rod 123, a movable block 124, and an operating handle 125. The mounting platform 121 is connected to the mounting frame 140, the rotating screw 122 is rotatably connected to the mounting platform 121, the guide rod 123 is connected to the mounting platform 121, and the guide rod 123 is parallel to and spaced apart from the rotating screw 122. The movable block 124 is threadedly connected to the rotating screw 122 and slidably connected to the guide rod 123. The operating handle 125 is connected to the end of the rotating screw 122. The sandblasting assembly 130 is connected to the movable block 124.

[0033] Therefore, through the above-mentioned manual adjustment component 120, during use, the operating handle 125 can be used to drive the rotating screw 122 to rotate. Since the movable block 124 is threadedly connected to the rotating screw 122, during the rotation of the rotating screw 122, the movable rod can be driven to move along the axis of the rotating screw 122 under the guidance of the guide rod 123. This causes the sandblasting component 130 connected to the movable block 124 to change position in the same direction, thereby realizing the reciprocating motion of the sandblasting gun 135 in the horizontal direction and achieving uniform erosion of the test material.

[0034] It should be noted that when configuring the movable block 124, a through threaded hole and a through hole are provided. The threaded block is threadedly connected to the rotating screw 122, while the through hole is slidably engaged with the guide rod 123. In this embodiment, two guide rods 123 are configured, so two through holes are provided, and the threaded hole is located between the two through holes, thereby making the rotating screw 122 located between the two guide rods 123.

[0035] Please refer to Figures 1-6 In configuring the mounting platform 121, to limit the movement of the movable block 124 and facilitate installation, connecting platforms 126 protrude from both ends of the mounting platform 121 along the axial direction of the rotating screw 122. The two ends of the rotating screw 122 are rotatably connected to the two connecting platforms 126 via bearings, and the two ends of the guide rod 123 are fixedly connected to the two connecting platforms 126. The arrangement of the two connecting platforms 126 limits the stroke of the movable block 124; that is, the area between the two connecting platforms 126 is the stroke range of the movable block 124. This arrangement also facilitates the formation of a stepped structure, which is convenient for the installation of the rotating screw 122 and the guide rod 123, and also facilitates the sliding of the movable block 124.

[0036] Based on the aforementioned manual adjustment component 120 structure, to facilitate the installation of the sandblasting component 130, please refer to... Figures 1-6 The manual adjustment component 120 also includes a connecting block 127, which includes a first connecting portion and a second connecting portion. The first connecting portion and the second connecting portion are arranged perpendicularly, and the first connecting portion is connected to the movable block 124, while the second connecting portion is connected to the sandblasting component 130. The first connecting portion is connected to the upper surface of the movable block 124, and the second connecting portion is located on the side of the mounting platform 121. This arrangement allows the sandblasting component 130 to connect to the second connecting portion located on one side of the mounting platform 121, and also allows for connection to the movable block 124 via the first connecting portion, which is perpendicular to the second connecting portion. This creates a clearance connection, simplifying the connection and preventing motion interference.

[0037] Please refer to Figures 1-6In this embodiment, when configuring the sandblasting assembly 130, the sandblasting assembly 130 includes a mounting rod 131, a sandblasting gun fixing member 132, and a sandblasting gun 135. One end of the mounting rod 131 is connected to the second connecting part, and the other end of the mounting rod 131 is connected to the sandblasting gun fixing member 132, which is used to fix the sandblasting gun 135. The sandblasting gun 135 is used to communicate with the compressed air pipe 213 and the sand conveying pipe 223 to spray sand and complete the erosion experiment. Moreover, this configuration allows the position of the sandblasting gun 135 to be adjusted below the mounting frame 140, corresponding to the experimental object placed on the placement platform 150, to facilitate the experiment.

[0038] It should be noted that when configuring the sandblasting gun 135, the sandblasting nozzle of the sandblasting gun 135 adopts a boron carbide special nozzle to improve the wear resistance of the nozzle.

[0039] Further, please refer to Figures 1-6 In this embodiment, to facilitate adjustment of the height of the sandblasting gun 135 according to the size of the experimental object, the mounting rod 131 can extend vertically, and the sandblasting gun fixing member 132 is slidably connected to the mounting rod 131. Therefore, by adjusting the position of the sandblasting gun fixing member 132 relative to the mounting rod 131, the height of the sandblasting gun 135 can be adjusted to meet experimental requirements. Based on this, when configuring the sandblasting gun fixing member 132, the sandblasting gun fixing member 132 may include a clamp-type pipe clamp 133 and a sandblasting gun clamp 134 connected to the clamp-type pipe clamp 133; the clamp-type pipe clamp 133 is sleeved on the mounting rod 131; the sandblasting gun clamp 134 is used to fix the sandblasting gun 135. With this setup, the sandblasting gun 135 can be connected to the sandblasting gun clamp 134. Since the sandblasting gun clamp 134 is connected to the clamp-type pipe clamp 133, and the clamp-type pipe clamp 133 is connected to the mounting rod 131, the position of the sandblasting gun 135 in the experimental chamber 111 can be fixed. Furthermore, based on this structure, the spraying angle of the sandblasting gun 135 can be adjusted by adjusting the position between the sandblasting gun clamp 134 and the clamp-type pipe clamp 133. Moreover, the height of the sandblasting gun 135 can be adjusted by adjusting the position of the clamp-type pipe clamp 133 relative to the mounting rod 131. Thus, the erosion angle and erosion point of the test sample can be adjusted.

[0040] Therefore, the wind and sand erosion experimental device 100 can achieve precise adjustment of the erosion angle, horizontal and vertical position during the experiment, while significantly reducing the manufacturing cost, operation difficulty and maintenance cost of the device.

[0041] Based on the aforementioned wind and sand erosion experimental device 100, please refer to... Figures 1-6This embodiment also provides a wind and sand erosion test system 200, which includes an air supply component 210, a sand supply component 220, and the aforementioned wind and sand erosion test device 100. The air supply assembly 210 is used to provide power air and includes an air compressor 211, an air tank 212 and a compressed air pipe 213. The air inlet of the air tank 212 is connected to the air outlet of the air compressor 211, one end of the compressed air pipe 213 is connected to the air outlet of the air tank 212, and the other end is connected to the sandblasting gun 135. The sand supply assembly 220 is used to supply sand required for erosion. It includes a sand supply box 221, a sand discharge pipe 222, and a sand delivery pipe 223. The two ends of the sand discharge pipe 222 are respectively connected to the sand supply box 221 and the sand delivery pipe 223, and the sand delivery pipe 223 is connected to the sand blasting gun 135.

[0042] The wind and sand erosion experimental system 200, by adopting the aforementioned wind and sand erosion experimental device 100, possesses all the advantages of the wind and sand erosion experimental device 100. Moreover, when conducting wind and sand erosion experiments using the wind and sand erosion experimental system 200, airflow can be supplied to the sand-blasting gun 135 through the air compressor 211, air tank 212, and compressed air pipe 213, while sand can be supplied to the sand-blasting gun 135 through the sand supply box 221, sand discharge pipe 222, and sand delivery pipe 223. Thus, sand can be output through the sand-blasting gun 135 to conduct erosion experiments on the experimental objects in the experimental chamber 111. Furthermore, the position of the sand-blasting gun 135 can be adjusted through the aforementioned manual adjustment component 120 to meet the experimental requirements.

[0043] Please refer to Figures 1-6 The working process of the wind and sand erosion test system 200 described above is as follows: Open the door of the main body 110 and place the test materials (experimental objects) to be subjected to wind and sand erosion and the mounting frame 140 on the placement platform 150; The position of the sandblasting component 130 is adjusted by manually adjusting component 120. Specifically, the operating handle 125 is turned to adjust the vertical mounting rod 131 to the approximate horizontal position where the test material needs to be subjected to wind and sand erosion. Insert the screw of the sandblasting gun 135 into the limiting hole of the sandblasting gun clamp 134, and tighten the fixing nut to fix the sandblasting gun 135; adjust the vertical position of the clamp 133 on the mounting rod 131 so that the nozzle of the sandblasting gun 135 is aligned with the position of the test material that needs to be subjected to wind and sand erosion. During the calibration process, the horizontal position of the sandblasting gun 135 can be finely adjusted by manually adjusting the component 120. When the horizontal and vertical positions of the sandblasting gun 135 meet the test requirements, rotate the clamp-type pipe clamp 133 to adjust the erosion angle of the sandblasting gun 135; when the horizontal, vertical and erosion angles of the sandblasting gun 135 meet the test requirements, tighten the fixing bolts of the clamp-type pipe clamp 133. The air compressor 211 of the air supply component 210 is started to continuously generate pressurized air and store it in the air tank 212; the screened sand is poured into the sand supply box 221; when the sand blasting gun 135 is started, the sand will fall through the sand discharge pipe 222 to the sand conveying pipe 223 and then reach the sand blasting gun 135. Sand-laden gas is ejected horizontally from the nozzle of the sand-spraying gun 135. Due to the horizontal rotation function of the clamp-type pipe clamp 133, the sand-laden gas will be sprayed onto the surface of the test material at a certain angle. The eroded sand and gravel fall into the sand collection box 160 through the mesh of the placement platform 150. During the erosion process, by rotating the operating handle 125, the sandblasting gun 135 is moved horizontally, thereby changing the erosion point.

[0044] In summary, please refer to Figures 1-6 The wind and sand erosion experimental device 100 and the wind and sand erosion experimental system 200 have at least the following advantages: Multiphase regulation is achieved through a purely mechanical structure, eliminating the need for expensive motors, sensors, and control systems. This greatly reduces the manufacturing cost and subsequent maintenance expenses of the device, making it very suitable for small and medium-sized laboratories with limited budgets, teaching experiments in colleges and universities, and rapid quality inspection in industrial production. With its simple structure and intuitive operation, requiring no specialized programming or complex electrical knowledge, researchers can quickly get started. Furthermore, due to the reduced use of electronic components, the device boasts higher stability and reliability, a significantly lower failure rate, and is suitable for harsh industrial environments and scenarios requiring long-term, high-frequency use.

[0045] Despite being manually adjustable, the mechanical design, including screw drive, guide rod 123, and clamp 133, still enables precise and stepless adjustment of the erosion point in the horizontal, vertical, and erosion angle directions, meeting the basic requirements of scientific experiments for precise parameter control.

[0046] All mechanical parts are standard parts and easy-to-machine components, making maintenance and replacement very simple. Users can complete most maintenance work without relying on original manufacturer technical support, effectively ensuring the continuity of experiments and the uptime of the equipment.

[0047] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. An experimental apparatus for wind and sand erosion, characterized in that: The wind and sand erosion experimental device includes a main body, a manual adjustment component, and a sand spraying component; The main body is equipped with an experimental chamber, the manual adjustment component is placed inside the experimental chamber, and the sandblasting component is connected to the manual adjustment component. The manual adjustment component is used to drive the sandblasting component to move inside the experimental chamber under the action of external force.

2. The wind and sand erosion experimental apparatus according to claim 1, characterized in that: The wind and sand erosion experimental device also includes a mounting frame and a placement platform; The placement platform is connected to the main body and located inside the experimental chamber; the mounting frame is connected to the placement platform, the manual adjustment component is connected to the mounting frame, and the manual adjustment component is located directly above the placement platform.

3. The wind and sand erosion experimental apparatus according to claim 2, characterized in that: The placement platform is a perforated plate, and the wind and sand erosion experimental device also includes a sand collection box located below the placement platform.

4. The wind and sand erosion experimental apparatus according to claim 2, characterized in that: The manual adjustment assembly includes a mounting platform, a lead screw, a guide rod, a movable block, and an operating handle; The mounting platform is connected to the mounting frame; the rotating screw is rotatably connected to the mounting platform; the guide rod is connected to the mounting platform and is arranged parallel to and spaced apart from the rotating screw; the movable block is threadedly connected to the rotating screw and slidably connected to the guide rod; the operating handle is connected to the end of the rotating screw. The sandblasting component is connected to the movable block.

5. The wind and sand erosion experimental apparatus according to claim 4, characterized in that: Along the axial direction of the rotating lead screw, both ends of the mounting platform are provided with connecting platforms. The two ends of the rotating lead screw are rotatably connected to the two connecting platforms via bearings, and the two ends of the guide rod are fixedly connected to the two connecting platforms.

6. The wind and sand erosion experimental apparatus according to claim 4, characterized in that: The manual adjustment component further includes a connecting block, which includes a first connecting part and a second connecting part. The first connecting part and the second connecting part are arranged perpendicularly to each other, and the first connecting part is connected to the movable block, while the second connecting part is connected to the sandblasting component. The first connecting part is connected to the upper end face of the movable block, and the second connecting part is located on the side of the mounting platform.

7. The wind and sand erosion experimental apparatus according to claim 6, characterized in that: The sandblasting assembly includes a mounting rod, a sandblasting gun fixing component, and a sandblasting gun. One end of the mounting rod is connected to the second connecting part, and the other end of the mounting rod is connected to the sandblasting gun fixing component. The sandblasting gun fixing component is used to fix the sandblasting gun.

8. The wind and sand erosion experimental apparatus according to claim 7, characterized in that: The mounting rod extends vertically, and the sandblasting gun fixing component is slidably connected to the mounting rod.

9. The wind and sand erosion experimental apparatus according to claim 8, characterized in that: The sandblasting gun fixing component includes a clamp-type pipe clamp and a sandblasting gun clamp connected to the clamp-type pipe clamp; The clamp-type pipe clamp is fitted onto the mounting rod; the sandblasting gun clamp is used to fix the sandblasting gun.

10. A wind and sand erosion experimental system, characterized in that: The wind and sand erosion experimental system includes an air supply component, a sand supply component, and a wind and sand erosion experimental device as described in any one of claims 1-9. The air supply assembly includes an air compressor, an air tank, and a compressed air pipe. The air inlet of the air tank is connected to the air outlet of the air compressor. One end of the compressed air pipe is connected to the air outlet of the air tank, and the other end is connected to the sandblasting gun. The sand supply assembly includes a sand supply box, a sand discharge pipe, and a sand conveying pipe; the two ends of the sand discharge pipe are respectively connected to the sand supply box and the sand conveying pipe, and the sand conveying pipe is connected to the sand blasting gun.

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