Wind erosion particle collecting device for wind erosion experiment

Abstract

The invention belongs to the technical field of wind erosion experiment devices, and discloses a wind erosion particle collection device for a wind erosion experiment, the wind erosion particle collection device comprises a base, the top end of the base is rotatably connected with a turntable; the collecting assembly comprises a supporting frame, a plurality of air duct openings and a plurality of limiting pieces, the air duct openings are distributed in the supporting frame in the axial direction, the limiting pieces are arranged on the air duct openings, the air duct openings are connected with the supporting frame in a limiting mode through the limiting pieces, and the opening end faces of the air duct openings face the windward side; the collecting assembly comprises a plurality of collecting boxes and a plurality of screening pieces, the collecting boxes are fixedly connected to the top end of the rotating disc, the collecting boxes communicate with the air duct openings correspondingly, and the screening pieces are arranged in the collecting boxes; and the stabilizing piece is arranged on the base, and the base is connected with the ground in a limiting mode through the stabilizing piece. The wind erosion field sampling efficiency, flexibility and data reliability are improved.

Description

Technical Field

[0001] This invention belongs to the technical field of wind erosion experimental devices, and particularly relates to a wind erosion particle collection device for wind erosion experiments. Background Technology

[0002] Wind erosion is a major cause of desertification and soil degradation. Wind erosion research experiments require the collection and analysis of particulate matter of different sizes (such as sand and dust) transported by wind to assess erosion intensity and material migration patterns. Existing wind erosion particle collection devices are typically simple in structure with fixed collection port locations, making it difficult to flexibly adjust them according to different wind directions or experimental needs. Furthermore, the collected particles are often mixed together, requiring cumbersome sieving steps and resulting in low efficiency. In addition, the stability of the device is crucial in field experiments.

[0003] Therefore, there is an urgent need for a wind erosion particle collection device for wind erosion experiments to solve the above problems. Summary of the Invention

[0004] The purpose of this invention is to provide a wind erosion particle collection device for wind erosion experiments, so as to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a wind erosion particle collection device for wind erosion experiments, comprising:

[0006] A base, with a turntable rotatably connected to its top;

[0007] The data acquisition component includes a support frame, multiple air ducts and multiple limiting components. The multiple air ducts are distributed axially on the support frame, and the limiting components are disposed on the air ducts. The air ducts are limited and connected to the support frame through the limiting components, and the open end of the air duct faces the windward side.

[0008] The collection component includes multiple collection boxes and multiple screening elements. The collection boxes are fixedly connected to the top of the turntable, and the multiple collection boxes are respectively connected to multiple air ducts. The screening elements are disposed inside the collection boxes.

[0009] A stabilizing element is provided on the base, and the base is limited and connected to the ground through the stabilizing element.

[0010] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein a clamp is fixedly connected to the outer wall of the wind duct opening, the limiting member includes a slider fixedly connected to both sides of the clamp, a first threaded rod is fixedly connected to the slider, and a sliding groove is provided on both opposite side walls of the support frame, the slider is slidably connected to the sliding groove, and a limiting knob is threadedly connected to the first threaded rod, the limiting knob being in contact with the outer wall of the support frame.

[0011] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided. The screening component includes multiple support frames, which are fixedly connected to the collection box along the axial direction. Rotating rollers are rotatably connected to both ends of the support frames. A screening belt is sleeved between two of the rotating rollers. Multiple screening holes are opened on the screening belt. The diameter of the screening holes on the multiple screening belts is different. A cleaning component is provided on the support frame for cleaning the screening holes.

[0012] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein the cleaning component includes a cleaning roller, the cleaning roller is fixedly connected to the rotating roller located at one end of the support frame, and a plurality of cleaning protrusions are fixedly connected to the cleaning roller, the cleaning protrusions being adapted to the screening holes.

[0013] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein two support rods are fixedly connected to both ends of the support frame, a support tube is sleeved on the support rod, and a tension roller is installed on the support tube, and the tension roller is arranged in contact with the screening belt.

[0014] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein a spring is sleeved on the support rod, and the two ends of the spring are fixedly connected to the bottom end of the support rod and the bottom end of the support tube, respectively.

[0015] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein in two adjacent support frames, a first guide plate is fixedly connected to both sides of the bottom of the upper support frame, and the two first guide plates are distributed in an inverted V-shape. The screening belt has an annular structure, and the first guide plate is located inside the annular structure. A second guide plate is fixedly connected to both ends of the top of the lower support frame, and the two second guide plates are distributed in an inverted V-shape. The second guide plate is used to receive sand on the first guide plate.

[0016] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein a collection box is provided with multiple collection slots that can be pulled out, one end of each collection slot is fixedly connected to one end of a third guide plate, and the other end of the third guide plate is located below the output end of the screening belt.

[0017] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein the stabilizing component includes a plurality of threaded limiting rods, which are threadedly connected to the base and extend into the ground.

[0018] According to the present invention, a wind erosion particle collection device for wind erosion experiments is provided, wherein multiple arc-shaped slideways are provided on the outer wall of the threaded limiting rod, multiple arc-shaped limiting plates are slidably connected in the arc-shaped slideways, a second threaded rod is rotatably connected in the threaded limiting rod, a moving block is threadedly connected to the second threaded rod, multiple limiting grooves are provided on the moving block along the circumferential direction, one end of the arc-shaped limiting plate extends into the threaded limiting rod and is fixedly connected to a limiting slider, the limiting slider is slidably connected to the limiting groove, and a knob is fixedly connected to one end of the second threaded rod extending out of the threaded limiting rod.

[0019] Compared with the prior art, the present invention has the following advantages and technical effects:

[0020] This invention provides a wind erosion particle collection device for wind erosion experiments. By incorporating a rotatable turntable, the entire collection and sampling assembly can rotate with the wind direction, ensuring the wind duct opening always faces the windward side, thus improving collection efficiency. The wind duct opening's height on the support frame is adjustable and fixed via limiting components, adapting to the sampling needs of windblown sand at different heights. A screening component within the collection box enables immediate and continuous grading and screening of collected particles. Stabilizing components increase the contact and engagement area with the soil, significantly enhancing the device's wind resistance and overall stability in the field. This invention integrates automatic wind alignment, height-adjustable sampling, continuous on-site grading and screening, and ultra-strong stable anchoring, significantly improving the efficiency, flexibility, and data reliability of wind erosion field sampling. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure of the support frame of the present invention;

[0024] Figure 3 This is a schematic diagram of the internal structure of the collection box of the present invention;

[0025] Figure 4 This is a schematic diagram of the screening strip structure of the present invention;

[0026] Figure 5 This is a schematic diagram showing the distribution of the first and second guide plates of the present invention;

[0027] Figure 6 This is a schematic diagram of the internal structure of the limiting threaded rod of the present invention;

[0028] Figure 7 This is a schematic diagram of the arc-shaped slide structure of the present invention;

[0029] The components are as follows: 1. Base; 2. Turntable; 3. Support frame; 4. Air duct opening; 5. Collection box; 6. Clamp; 7. Slider; 8. First threaded rod; 9. Slide groove; 10. Limiting knob; 11. Support frame; 12. Rotating roller; 13. Screening belt; 14. Screening hole; 15. Cleaning roller; 16. Cleaning protrusion; 17. Support rod; 18. Support tube; 19. Tensioning roller; 20. Spring; 21. First guide plate; 22. Second guide plate; 23. Collection groove; 24. Third guide plate; 25. Threaded limiting rod; 26. Arc-shaped slide; 27. Arc-shaped limiting plate; 28. Second threaded rod; 29. ​​Moving block; 30. Limiting slide groove; 31. Limiting slider; 32. Knob. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1-7 This invention provides a wind erosion particle collection device for wind erosion experiments, comprising:

[0033] Base 1, with a turntable 2 rotatably connected to the top of base 1;

[0034] The data acquisition component includes a support frame 3, multiple air ducts 4, and multiple limiting components. The multiple air ducts 4 are distributed axially on the support frame 3, and the limiting components are set on the air ducts 4. The air ducts 4 are limited and connected to the support frame 3 through the limiting components, and the open end of the air duct 4 faces the windward side.

[0035] The collection component includes multiple collection boxes 5 and multiple screening elements. The collection boxes 5 are fixedly connected to the top of the turntable 2. The multiple collection boxes 5 are respectively connected to multiple air ducts 4. The screening elements are set inside the collection boxes 5.

[0036] A stabilizing component is installed on the base 1, and the base 1 is connected to the ground for limiting through the stabilizing component.

[0037] In one embodiment of the present invention, by setting a rotatable turntable 2, the entire collection component and the collection assembly can rotate with the wind direction, ensuring that the air duct 4 always faces the windward side, thereby improving the collection efficiency. The air duct 4 is height-adjustable and fixed on the support frame 3 by a limiting component, adapting to the sampling needs of wind and sand flow at different heights. A screening component is set in the collection box 5 to realize the immediate and continuous grading and screening of collected particles. The setting of stabilizing component increases the contact and interlocking area with the soil, significantly enhancing the wind resistance and overall stability of the device in the field.

[0038] As an optional implementation, a clamp 6 is fixedly connected to the outer wall of the air duct 4. The limiting component includes a slider 7 fixedly connected to both sides of the clamp 6. A first threaded rod 8 is fixedly connected to the slider 7. Slide grooves 9 are opened on both opposite side walls of the support frame 3. The slider 7 is slidably connected to the slide grooves 9. A limiting knob 10 is threadedly connected to the first threaded rod 8. The limiting knob 10 is in contact with the outer wall of the support frame 3.

[0039] In one embodiment of the present invention, the air duct opening 4 can slide flexibly and smoothly up and down along the support frame 3 through the cooperation of the slider 7 and the slide groove 9, thereby allowing the sampling height to be adjusted according to the needs of wind erosion research. By tightening the limiting knob 10, the air duct opening 4 can be easily and firmly locked at any preset height, which is convenient to operate and reliable to fix, enhancing the applicability of the device and the flexibility of experimental design.

[0040] As an optional implementation, the screening component includes multiple support frames 11, which are fixedly connected to the collection box 5 along the axial direction. Rotating rollers 12 are rotatably connected to both ends of the support frames 11. A screening belt 13 is sleeved between the two rotating rollers 12. Multiple screening holes 14 are opened on the screening belt 13. The diameter of the screening holes 14 on the multiple screening belts 13 is different. A cleaning component is provided on the support frame 11 for cleaning the screening holes 14.

[0041] In one embodiment of the present invention, by setting up multiple screening bands 13 with progressively decreasing pore sizes, continuous and automated grading of wind-eroded particles entering the collection box 5 is achieved. Under the action of gravity or slight external force, particles smaller than the current layer's pore size fall through the filter holes, while particles larger than the pore size are intercepted and guided elsewhere, thereby efficiently separating mixed particles into sub-samples of different particle size ranges. The cleaning component is designed to solve the technical problem of easy clogging of the screening holes during long-term operation, ensuring the continuous effectiveness of the screening process.

[0042] As an optional implementation, the cleaning component includes a cleaning roller 15, which is fixedly connected to a rotating roller 12 located at one end of the support frame 11. A plurality of cleaning protrusions 16 are fixedly connected to the cleaning roller 15, and the cleaning protrusions 16 are adapted to the screening holes 14.

[0043] In one embodiment of the present invention, the cleaning protrusions 16 on the cleaning roller 15 are adapted to the screening holes 14. By extending the cleaning protrusions 16 into the corresponding screening holes 14, the sand particles blocked in the screening holes 14 are pushed out, thereby cleaning the screening holes 14.

[0044] As an optional implementation, two support rods 17 are fixedly connected to both ends of the support frame 11. A support tube 18 is sleeved on the support rod 17, and a tension roller 19 is installed on the support tube 18. The tension roller 19 is in contact with the screening belt 13.

[0045] In one embodiment of the present invention, a tensioning roller 19 is provided to the screening belt 13 to ensure the stable rotation of the screening belt 13 and at the same time ensure the stable cleaning of the screening belt 13.

[0046] As an optional implementation, a spring 20 is sleeved on the support rod 17, and the two ends of the spring 20 are fixedly connected to the bottom end of the support rod 17 and the bottom end of the support tube 18, respectively.

[0047] In one embodiment of the present invention, the tension of the tensioning roller 19 is ensured by a spring 20.

[0048] As an optional implementation, in two adjacent support frames 11, the upper support frame 11 is fixedly connected to both sides of its bottom with a first guide plate 21. The two first guide plates 21 are distributed in an inverted V-shape. The screening belt 13 has an annular structure, and the first guide plates 21 are located inside the annular structure. The lower support frame 11 is fixedly connected to both ends of its top with a second guide plate 22. The two second guide plates 22 are distributed in an inverted V-shape. The second guide plates 22 are used to receive sand on the first guide plates 21.

[0049] In one embodiment of the present invention, particles falling through the filter holes of the upper screening belt 13 will fall onto the inverted V-shaped first guide plate 21 and slide along its slope to the middle low point to fall in concentration. The inverted V-shaped second guide plate 22 at the top of the lower screening belt 13 has its opening aligned with and receives the particle flow collected from the upper first guide plate 21, and accurately guides it to the starting working area of ​​this screening belt 13 for further screening.

[0050] As an optional implementation, the collection box 5 is provided with multiple collection slots 23 that can be pulled out. One end of the collection slot 23 is fixedly connected to one end of the third guide plate 24, and the other end of the third guide plate 24 is located below the output end of the screening belt 13.

[0051] In one embodiment of the present invention, for each screening band 13, the trapped particles (i.e., the sample of the current particle size level) that fail to pass through the filter holes and eventually slide down along the inclined screening band are caught by the third guide plate 24 located below its lowest end and guided into the independent collection tank 23 connected thereto. The collection tank 23 adopts a pull-out design, which makes it easy for the experimenter to quickly and conveniently remove samples of each particle size level after the experiment, and can maintain the sample separation state without secondary sorting.

[0052] As an alternative implementation, the stabilizing element includes a plurality of threaded limiting rods 25, which are threadedly connected to the base 1 and extend into the ground.

[0053] In one embodiment of the present invention, the base can be firmly anchored to the ground by screwing multiple threaded limiting rods 25 into the ground like anchor bolts.

[0054] As an optional implementation, multiple arc-shaped slideways 26 are provided on the outer wall of the threaded limiting rod 25. Multiple arc-shaped limiting plates 27 are slidably connected in the arc-shaped slideways 26. A second threaded rod 28 is rotatably connected in the threaded limiting rod 25. A moving block 29 is threadedly connected to the second threaded rod 28. Multiple limiting grooves 30 are provided on the moving block 29 along the circumferential direction. One end of the arc-shaped limiting plate 27 extends into the threaded limiting rod 25 and is fixedly connected to a limiting slider 31. The limiting slider 31 is slidably connected to the limiting groove 30. One end of the second threaded rod 28 extends out of the threaded limiting rod 25 and is fixedly connected to a knob 32.

[0055] In one embodiment of the present invention, after the threaded limiting rod 25 is screwed into the ground, the second threaded rod 28 is rotated by rotating the knob 32, driving the moving block 29 to move. The moving block 29 drives the arc-shaped limiting plate 27 to extend radially outward along the arc-shaped slide 26 into the depth of the soil through the limiting slide groove 30 and the limiting slider 31. This extended structure greatly increases the contact and interlocking area with the surrounding soil, forming a strong mechanical anchor, and significantly improving the pull-out resistance. It can effectively prevent the device from being pulled up or loosened in strong winds, ensuring absolute stability and safety in long-term, high-wind-speed experiments. At the same time, its arc-shaped structure further ensures stability in sandy environments.

[0056] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 invention.

[0057] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A device for collecting wind erosion particles in wind erosion experiments, characterized in that, include: The base (1) has a turntable (2) rotatably connected to its top. The data acquisition component includes a support frame (3), multiple air ducts (4) and multiple limiting members. The multiple air ducts (4) are distributed axially on the support frame (3). The limiting members are set on the air ducts (4). The air ducts (4) are limited and connected to the support frame (3) through the limiting members. The opening end of the air ducts (4) faces the windward side. The collection component includes multiple collection boxes (5) and multiple screening elements. The collection boxes (5) are fixedly connected to the top of the turntable (2). The multiple collection boxes (5) are respectively connected to multiple air ducts (4). The screening elements are set inside the collection boxes (5). A stabilizing element is provided on the base (1), and the base (1) is connected to the ground by means of the stabilizing element.

2. The wind erosion particle collection device for wind erosion experiments according to claim 1, characterized in that: A clamp (6) is fixedly connected to the outer wall of the air duct (4). The limiting component includes a slider (7) fixedly connected to both sides of the clamp (6). A first threaded rod (8) is fixedly connected to the slider (7). Slide grooves (9) are provided on both sides of the support frame (3). The slider (7) is slidably connected to the slide groove (9). A limiting knob (10) is threadedly connected to the first threaded rod (8). The limiting knob (10) is in contact with the outer wall of the support frame (3).

3. The wind erosion particle collection device for wind erosion experiments according to claim 1, characterized in that: The screening component includes multiple support frames (11) which are fixedly connected axially inside the collection box (5). Rotating rollers (12) are rotatably connected to both ends of the support frames (11). A screening belt (13) is sleeved between the two rotating rollers (12). Multiple screening holes (14) are opened on the screening belt (13). The diameters of the screening holes (14) on the multiple screening belts (13) are different. A cleaning component is provided on the support frame (11) for cleaning the screening holes (14).

4. The wind erosion particle collection device for wind erosion experiments according to claim 3, characterized in that: The cleaning component includes a cleaning roller (15), which is fixedly connected to the rotating roller (12) located at one end of the support frame (11). A plurality of cleaning protrusions (16) are fixedly connected to the cleaning roller (15), and the cleaning protrusions (16) are adapted to the screening holes (14).

5. A wind erosion particle collection device for wind erosion experiments according to claim 3, characterized in that: Two support rods (17) are fixedly connected to both ends of the support frame (11). A support tube (18) is sleeved on the support rod (17). A tension roller (19) is installed on the support tube (18). The tension roller (19) is in contact with the screening belt (13).

6. The wind erosion particle collection device for wind erosion experiments according to claim 5, characterized in that: A spring (20) is fitted on the support rod (17), and the two ends of the spring (20) are fixedly connected to the bottom end of the support rod (17) and the bottom end of the support tube (18), respectively.

7. A wind erosion particle collection device for wind erosion experiments according to claim 5, characterized in that: In the two adjacent support frames (11), the upper support frame (11) is fixedly connected to the bottom two sides of the first guide plate (21), the two first guide plates (21) are distributed in an inverted V shape, the screening belt (13) is in a ring structure, the first guide plate (21) is located inside the ring structure, and the lower support frame (11) is fixedly connected to the top two ends of the second guide plate (22), the two second guide plates (22) are distributed in an inverted V shape, and the second guide plate (22) is used to receive the sand on the first guide plate (21).

8. The wind erosion particle collection device for wind erosion experiments according to claim 4, characterized in that: The collection box (5) is provided with multiple collection slots (23) that can be pulled out. One end of the collection slot (23) is fixedly connected to one end of the third guide plate (24), and the other end of the third guide plate (24) is located below the output end of the screening belt (13).

9. A wind erosion particle collection device for wind erosion experiments according to claim 1, characterized in that: The stabilizing component includes a plurality of threaded limiting rods (25), which are threadedly connected to the base (1) and extend into the ground.

10. A wind erosion particle collection device for wind erosion experiments according to claim 9, characterized in that: Multiple arc-shaped slides (26) are provided on the outer wall of the threaded limiting rod (25). Multiple arc-shaped limiting plates (27) are slidably connected in the arc-shaped slides (26). A second threaded rod (28) is rotatably connected in the threaded limiting rod (25). A moving block (29) is threadedly connected to the second threaded rod (28). Multiple limiting grooves (30) are provided on the moving block (29) along the circumferential direction. One end of the arc-shaped limiting plate (27) extends into the threaded limiting rod (25) and is fixedly connected to a limiting slider (31). The limiting slider (31) is slidably connected to the limiting groove (30). One end of the second threaded rod (28) extends out of the threaded limiting rod (25) and is fixedly connected to a knob (32).

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