Multi-layer stacked wind prevention and sand fixation device

Abstract

The utility model discloses a multi-layer stacked wind prevention and sand fixation device which comprises a reinforcing frame, a plurality of wind prevention and sand fixation devices and a plurality of wind prevention and sand fixation devices. The utility model discloses a detachable reinforcing structure which comprises a reinforcing frame and a detachable reinforcing structure, the detachable reinforcing structure is arranged at the bottom of the reinforcing frame, the detachable reinforcing structure comprises a rectangular ring clamping groove, the rectangular ring clamping groove is formed in the bottom of the reinforcing frame, and a rectangular ring clamping block is connected to the inner wall of the rectangular ring clamping groove in a clamped mode. A hole with the size equal to that of a placing frame is dug in the top of soil needing wind prevention and sand fixation, then dug soil mixed bentonite is placed in the placing frame and then inserted into the hole, at the moment, a mixture of the soil and the bentonite can cover the top of the soil, and water and soil loss at the top of the soil can be blocked by the placing frame; meanwhile, water can be absorbed and protected, and bentonite and soil inside can be stirred and mixed after drying or water mixing, so that layering is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of windbreak and sand-fixing devices, specifically a multi-layer superimposed windbreak and sand-fixing device. Background Technology

[0002] Bentonite, also known as bentonite rock, soap clay, or bentonite stone, is primarily composed of montmorillonite, which makes up 85-90% of its composition. Many of bentonite's properties are determined by montmorillonite. Montmorillonite can be various colors, such as yellowish-green, yellowish-white, gray, and white. It can exist in dense, massive forms or loose, earthy textures. When rubbed between the fingers, it feels slippery. Small pieces expand several times to 20-30 times their original volume when water is added, suspending in water and forming a paste when there is little water. The properties of montmorillonite are related to its chemical composition and internal structure.

[0003] Considering that bentonite can swell when it comes into contact with water and can be mixed with water to form a paste, bentonite is usually used for water retention and can be applied to windbreak and sand fixation. However, bentonite cannot be used alone, otherwise it is easy to be lost, which will reduce the effect of windbreak and sand fixation. Therefore, it is usually used in conjunction with windbreak and sand fixation devices to reduce the loss rate of bentonite.

[0004] Traditional windbreak and sand-fixing devices typically consist of a single fixed frame with a protective net on top, into which bentonite is placed. The net helps prevent loss of bentonite. However, this method leaves the bentonite still on the soil surface, and it is still lost during soil erosion at the bottom. Furthermore, after the bentonite mixes with the soil and absorbs water, it easily separates from the soil, reducing the overall water retention and sand-fixing effect. In strong winds, the bentonite can easily be blown away along with the dry silt at the bottom through the holes in the top protective net, causing further soil erosion.

[0005] In summary, a multi-layered windbreak and sand-fixing device is needed to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a multi-layered windbreak and sand-fixing device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A multi-layered windbreak and sand-fixing device includes:

[0009] The reinforcing frame is a rectangular ring frame;

[0010] The disassembly and assembly reinforcement structure is set at the bottom of the reinforcement frame. The disassembly and assembly reinforcement structure includes a rectangular ring slot, which is opened at the bottom of the reinforcement frame. A rectangular ring block is engaged with the inner wall of the rectangular ring slot. A placement frame is fixedly connected to the bottom of the rectangular ring block. The bottom of the placement frame is a rectangular filter plate.

[0011] A protective covering structure is provided on the top of the reinforced frame. The protective covering structure includes two rectangular grooves, which are symmetrically opened on both sides of the reinforced frame. Two rectangular sliders are symmetrically slidably connected to the inner walls of the rectangular grooves.

[0012] The assembly and disassembly connection structure comprises four structures, which are arranged on the four sides of the reinforcing frame. Each assembly and disassembly connection structure includes a rectangular frame, which is fixedly connected to the side of the reinforcing frame.

[0013] Preferably, the disassembly and reinforcement structure further includes a second screw hole at the bottom of the rectangular ring block, and a first screw hole is provided on the inner wall of the rectangular ring slot. The inner walls of the first screw hole and the second screw hole are threadedly connected to a threaded clamping rod.

[0014] Preferably, a rectangular filter plate is fixedly connected to the inner wall of the reinforcing frame, a rectangular auxiliary frame is fixedly connected to the inner wall of the rectangular filter plate, and a sliding block is slidably connected to the inner wall of the rectangular auxiliary frame.

[0015] Preferably, the bottom of the rectangular auxiliary frame is provided with a rectangular through groove, the bottom of the sliding block is fixedly connected with a sliding rod, the bottom end of the sliding rod is fixedly connected with a rectangular connecting plate, and the bottom of the rectangular connecting plate is fixedly connected with a guide rod.

[0016] Preferably, a circular connecting block is fixedly connected to the top of the sliding block, and rectangular connecting blocks are symmetrically fixedly connected to the outer surface of the circular connecting block. A first locking hole is opened on the inner wall of the rectangular connecting block, and a second locking hole is symmetrically opened on the top of the rectangular filter plate. A locking rod is engaged with the inner wall of the first locking hole and the second locking hole, and an auxiliary connecting block is fixedly connected to the top of the locking rod.

[0017] Preferably, the protective covering structure further includes a rectangular support plate fixedly connected to one side of the rectangular slider, a support block fixedly connected to the top of the rectangular support plate, a rotating rod rotatably connected to one side of the two opposing rectangular sliders, a rotating block fixedly connected to the outer surface of the rotating rod, a cover plate fixedly connected to the outer surface of the rotating block, and an operating handle fixedly connected to the outer surface of the cover plate.

[0018] Preferably, a U-shaped plate is fixedly connected to one side of one of the cover plates, an auxiliary rotating rod is rotatably connected between the two sides of the inner wall of the U-shaped plate, an auxiliary rotating block is fixedly connected to the outer surface of the auxiliary rotating rod, an auxiliary connecting plate is fixedly connected to the outer surface of the auxiliary rotating block, and the outer surface of the auxiliary connecting plate is fixedly connected to another cover plate.

[0019] Preferably, one end of the auxiliary rotating rod passes through one side of the U-shaped plate and is fixedly connected to an operating block. The inner wall of the operating block is threadedly connected to a threaded locking rod. A plurality of threaded locking holes are provided on one side of the U-shaped plate, and the plurality of threaded locking holes are arranged at equal intervals along the circumference of the auxiliary rotating rod.

[0020] Preferably, the disassembly and assembly connection structure further includes a filter screen plate, which is made of deformable iron wire woven into a filter screen plate. Rectangular clips are symmetrically fixedly connected to both sides of the filter screen plate, and the rectangular clips are engaged with the rectangular clip frame by friction.

[0021] Preferably, a third screw hole is provided on one side of the rectangular card block, and a fourth screw hole is provided on one side of the rectangular card frame. The inner walls of the third screw hole and the fourth screw hole are threadedly connected to a second threaded card rod.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: With the aid of a disassembly and assembly reinforcement structure, this utility model can excavate holes of the size of the placement frame on the top of the soil requiring windbreak and sand fixation. The excavated soil mixed with bentonite is then placed inside the placement frame and inserted into the hole. This allows the soil-bentonite mixture to cover the top of the soil, preventing soil erosion and absorbing and protecting the soil. Furthermore, after drying or mixing with water, the bentonite and soil inside can be stirred and mixed to prevent stratification. With the protective covering structure, the covering plate can protect the soil and sand inside during strong winds. During rainy or windless weather, the covering plate can be folded and propped up, allowing water to enter and be absorbed and retained. With the disassembly and assembly connection structure, multiple reinforcement frames can be connected. Additionally, with the deformable filter plate, the angle between the reinforcement frames can be adjusted by bending, thus adapting to different terrains. Attached Figure Description

[0023] Figure 1 To illustrate the overall structure of the multi-layered windbreak and sand-fixing device;

[0024] Figure 2 This is a schematic diagram of the multi-layered windbreak and sand-fixing device viewed from below;

[0025] Figure 3 This is a schematic diagram showing the structure of the multi-layered windbreak and sand-fixing device placement frame;

[0026] Figure 4 This is a schematic diagram showing the structure of the rectangular filter plate in the multi-layered windbreak and sand-fixing device;

[0027] Figure 5 This is a schematic diagram of the structure of the rectangular auxiliary frame of the multi-layered windbreak and sand-fixing device;

[0028] Figure 6 To demonstrate a multi-layered windbreak and sand-fixing device Figure 5 Enlarged view of the structure at point A in the middle;

[0029] Figure 7 To illustrate the structural schematic diagram of the rectangular support plate of the multi-layered windbreak and sand-fixing device;

[0030] Figure 8 To illustrate the structural diagram of the cover plate of the multi-layered windbreak and sand-fixing device;

[0031] Figure 9 To demonstrate a multi-layered windbreak and sand-fixing device Figure 8 Enlarged view of the structure at point B;

[0032] Figure 10 This is a schematic diagram showing the structure of the rectangular frame of the multi-layered windbreak and sand-fixing device.

[0033] In the picture:

[0034] 1. Reinforced frame;

[0035] 2. Reinforcement structure for disassembly and assembly; 21. Rectangular ring groove; 22. Rectangular ring block; 23. First screw hole; 24. Second screw hole; 25. Threaded rod; 26. Placement frame; 27. Rectangular filter plate; 28. Rectangular auxiliary frame; 29. ​​Rectangular through groove; 210. Sliding block; 211. Sliding rod; 212. Rectangular connecting plate; 213. Guide rod; 214. Circular connecting block; 215. Rectangular connecting block; 216. First locking hole; 217. Auxiliary connecting block; 218. Locking rod; 219. Second locking hole;

[0036] 3. Covering and protective structure; 31. Rectangular slide; 32. Rectangular slider; 33. Rectangular support plate; 34. Support block; 35. Rotating rod; 36. Rotating block; 37. Cover plate; 38. Operating handle; 39. U-shaped plate; 310. Auxiliary rotating rod; 311. Auxiliary rotating block; 312. Auxiliary connecting plate; 313. Operating round block; 314. Threaded locking rod; 315. Threaded locking hole;

[0037] 4. Disassembly and assembly connection structure; 41. Rectangular frame; 42. Rectangular block; 43. Filter screen; 44. Third screw hole; 45. Fourth screw hole; 46. Second threaded rod. Detailed Implementation

[0038] 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.

[0039] Please see Figures 1 to 10 This utility model provides a technical solution:

[0040] A multi-layered windbreak and sand-fixing device, mainly made of biodegradable materials, ensures no secondary damage to the soil by using environmentally friendly biodegradable materials. It includes the following structure: a reinforcing frame 1, which is a rectangular ring frame; and a detachable reinforcing structure 2, located at the bottom of the reinforcing frame 1. The detachable reinforcing structure 2 includes a rectangular ring groove 21, which is located at the bottom of the reinforcing frame 1. A rectangular ring block 22 is engaged with the inner wall of the rectangular ring groove 21, and a placement frame 26 is fixedly connected to the bottom of the rectangular ring block 22. The bottom of frame 26 is a rectangular filter plate; a protective cover 3 is set on the top of the reinforced frame 1, the protective cover 3 includes two rectangular slide grooves 31, the two rectangular slide grooves 31 are symmetrically opened on both sides of the reinforced frame 1, and two rectangular sliders 32 are symmetrically slidably connected to the inner wall of the rectangular slide grooves 31; a disassembly and assembly connection structure 4 is provided, the number of disassembly and assembly connection structures 4 is four, the four disassembly and assembly connection structures 4 are set on the four sides of the reinforced frame 1, the disassembly and assembly connection structure 4 includes a rectangular clip frame 41, the rectangular clip frame 41 is fixedly connected to the side of the reinforced frame 1;

[0041] By setting up the aforementioned reinforcement frame 1 and other components, the size needs to be adjusted according to the actual terrain. That is, for small areas of soil windbreak and sand fixation, the size of the reinforcement frame 1 can be appropriately reduced during the production process. For large areas of soil windbreak and sand fixation, the size of the reinforcement frame 1 can be appropriately enlarged, thereby enlarging the components on the reinforcement frame 1 accordingly. This device is effective and low-cost for small areas of soil windbreak and sand fixation. For large areas of soil windbreak and sand fixation, the labor cost needs to be appropriately increased because the device has many components that require manual operation, and more manpower is needed for auxiliary operation.

[0042] With the help of the disassembly and assembly reinforcement structure 2, holes of the size of the placement frame 26 are dug on the top of the soil that needs windbreak and sand fixation. Then, the excavated soil mixed with bentonite is placed inside the placement frame 26 and inserted into the hole. At this time, the mixture of soil and bentonite can cover the top of the soil. The soil erosion on the top of the soil will be blocked by the placement frame 26, and water can be absorbed and protected. After drying or mixing with water, the bentonite and soil inside can be stirred and mixed to avoid stratification. With the help of the covering and protection structure 3, the covering plate 37 can protect the soil and sand inside when the wind is strong. At the same time, the covering plate 37 can be folded and supported in rainy or windless weather, so that water can enter the interior for absorption and water retention. With the help of the disassembly and assembly connection structure 4, multiple reinforcement frames 1 can be connected. With the help of the deformable filter plate 43, the angle between the reinforcement frames 1 can be bent and adjusted to adapt to different terrains.

[0043] refer to Figure 3 The disassembly and assembly reinforcement structure 2 also includes a second screw hole 24 opened at the bottom of the rectangular ring retainer block 22, and a first screw hole 23 is opened on the inner wall of the rectangular ring retainer groove 21. The inner walls of the first screw hole 23 and the second screw hole 24 are threadedly connected to a threaded retainer rod 25.

[0044] By setting the threaded locking rod 25, the rectangular ring locking block 22 and the rectangular ring locking groove 21 can be disassembled and assembled by cooperating with the first screw hole 23 and the second screw hole 24.

[0045] refer to Figure 4 A rectangular filter plate 27 is fixedly connected to the inner wall of the reinforcing frame 1, a rectangular auxiliary frame 28 is fixedly connected to the inner wall of the rectangular filter plate 27, and a sliding block 210 is slidably connected to the inner wall of the rectangular auxiliary frame 28.

[0046] By setting up the rectangular filter plate 27, it can be used in conjunction with the placement frame 26 to mix and place the soil and bentonite. The sliding block 210 can slide on the inner wall of the rectangular auxiliary frame 28, and thus can move in conjunction with other components.

[0047] refer to Figure 4 and Figure 5 The bottom of the rectangular auxiliary frame 28 is provided with a rectangular through groove 29, the bottom of the sliding block 210 is fixedly connected with a sliding rod 211, the bottom end of the sliding rod 211 is fixedly connected with a rectangular connecting plate 212, and the bottom of the rectangular connecting plate 212 is fixedly connected with a guide rod 213.

[0048] By setting up a rectangular through groove 29, it can work with a sliding rod 211 to allow the rectangular connecting plate 212 and the guide rod 213 to move, thereby assisting in the mixing of soil and bentonite.

[0049] refer to Figures 4-6A circular connecting block 214 is fixedly connected to the top of the sliding block 210. A rectangular connecting block 215 is symmetrically fixedly connected to the outer surface of the circular connecting block 214. A first locking hole 216 is opened on the inner wall of the rectangular connecting block 215. A second locking hole 219 is symmetrically opened on the top of the rectangular filter plate 27. A locking rod 218 is locked to the inner wall of the first locking hole 216 and the second locking hole 219. An auxiliary connecting block 217 is fixedly connected to the top of the locking rod 218.

[0050] By setting up circular connecting blocks 214 and rectangular connecting blocks 215, the locking rod 218 can cooperate with the first locking hole 216 and the second locking hole 219 to fix components such as the sliding block 210.

[0051] refer to Figure 7 and Figure 8 The protective structure 3 also includes a rectangular support plate 33 fixedly connected to one side of the rectangular slider 32. A support block 34 is fixedly connected to the top of the rectangular support plate 33. A rotating rod 35 is rotatably connected to one side of the two opposing rectangular sliders 32. A rotating block 36 is fixedly connected to the outer surface of the rotating rod 35. A cover plate 37 is fixedly connected to the outer surface of the rotating block 36. An operating handle 38 is fixedly connected to the outer surface of the cover plate 37.

[0052] By setting the support block 34 and the rectangular support plate 33, the rotation angle of the cover plate 37 can be limited, and the downward rotation angle will not be too large, thereby preventing the cover plate 37 from rotating into the interior of the reinforcing frame 1.

[0053] refer to Figure 8 and Figure 9 One of the cover plates 37 is fixedly connected to one side of a U-shaped plate 39. An auxiliary rotating rod 310 is rotatably connected between the two sides of the inner wall of the U-shaped plate 39. An auxiliary rotating block 311 is fixedly connected to the outer surface of the auxiliary rotating rod 310. An auxiliary connecting plate 312 is fixedly connected to the outer surface of the auxiliary rotating block 311. The outer surface of the auxiliary connecting plate 312 is fixedly connected to another cover plate 37.

[0054] By setting up auxiliary rotating rod 310 and auxiliary rotating block 311, they can work with auxiliary connecting plate 312 to allow the two cover plates 37 to rotate relative to each other. In turn, they can work with components such as sliding block 210 to allow the cover plates 37 to be stored and covered.

[0055] refer to Figure 8 and Figure 9 One end of the auxiliary rotating rod 310 passes through one side of the U-shaped plate 39 and is fixedly connected to the operating block 313. The inner wall of the operating block 313 is threadedly connected to the threaded locking rod 314. Several threaded locking holes 315 are opened on one side of the U-shaped plate 39. The several threaded locking holes 315 are arranged at equal intervals along the circumference of the auxiliary rotating rod 310.

[0056] By setting the threaded locking hole 315 and the threaded locking rod 314, the operating block 313 can be fixed, which in turn can fix the auxiliary rotating rod 310.

[0057] refer to Figure 1 and Figure 10 The disassembly and assembly connection structure 4 also includes a filter screen plate 43, which is made of deformable iron wire. Rectangular clips 42 are symmetrically fixed on both sides of the filter screen plate 43. The rectangular clips 42 and the rectangular clip frame 41 are engaged by friction.

[0058] By setting rectangular clips 42 and rectangular frames 41, the filter plate 43 and the reinforcing frame 1 can be fixed. At the same time, the two rectangular clips 42 cooperate with each other to assist in fixing the two rectangular frames 41, so that the reinforcing frames 1 can be connected and fixed to each other.

[0059] refer to Figure 10 A third screw hole 44 is provided on one side of the rectangular card block 42, and a fourth screw hole 45 is provided on one side of the rectangular card frame 41. The inner walls of the third screw hole 44 and the fourth screw hole 45 are threadedly connected to a second threaded card rod 46.

[0060] By setting the third screw hole 44 and the fourth screw hole 45, the second threaded clamping rod 46 can cooperate with the third screw hole 44 and the fourth screw hole 45 to assist in fixing the rectangular clamping block 42 and the rectangular clamping frame 41.

[0061] The overall working principle is as follows:

[0062] In use, first dig holes in the ground that needs windbreak and sand fixation to fit the placement frame 26. Then, place the excavated soil mixed with bentonite inside the placement frame 26. Engage the rectangular ring clamp 22 with the rectangular ring clamp groove 21, and then fix the threaded clamp rod 25 with the first screw hole 23 and the second screw hole 24. Then, pull the auxiliary connecting block 217 to separate the clamping rod 218 from the first clamping hole 216 and the second clamping hole 219. Then, push the circular connecting block 214 so that the sliding block 210 can slide on the inner wall of the rectangular auxiliary frame 28, which can drive the sliding rod 211 and the rectangular connecting plate 212 to move, which can drive the guide rod 213 to move, and thus mix the internal soil and bentonite at any time.

[0063] When the wind is strong, pull the operating handle 38 so that the cover plate 37 can drive the rectangular slider 32 to slide on the inner wall of the rectangular slide groove 31, thereby driving the cover plate 37 to rotate. At the same time, it can drive the auxiliary rotating rod 310 and the auxiliary rotating block 311 to rotate, thereby driving the cover plate 37 to cover the reinforcing frame 1. At this time, the threaded locking rod 314 and the threaded locking hole 315 can be fixed.

[0064] When it is necessary to splice the two reinforcing frames 1, the rectangular clip 42 can be clipped to the rectangular clip frame 41. At this time, the filter plate 43 can be bent according to the terrain, so that the angle of the two reinforcing frames 1 can be adjusted. At this time, the second threaded clip 46 can be fixed to the third screw hole 44 and the fourth screw hole 45.

[0065] 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 multi-layered windbreak and sand-fixing device, characterized in that, include: The reinforcing frame (1) is a rectangular ring frame; The disassembly and assembly reinforcement structure (2) is set at the bottom of the reinforcement frame (1). The disassembly and assembly reinforcement structure (2) includes a rectangular ring groove (21). The rectangular ring groove (21) is opened at the bottom of the reinforcement frame (1). A rectangular ring block (22) is engaged with the inner wall of the rectangular ring groove (21). A placement frame (26) is fixedly connected to the bottom of the rectangular ring block (22). The bottom of the placement frame (26) is a rectangular filter plate. Covering protective structure (3), the covering protective structure (3) is set on the top of the reinforcing frame (1), the covering protective structure (3) includes two rectangular slide grooves (31), the two rectangular slide grooves (31) are symmetrically opened on both sides of the reinforcing frame (1), and the inner wall of the rectangular slide grooves (31) is symmetrically slidably connected to two rectangular sliders (32); The disassembly and assembly connection structure (4) is four in number. The four disassembly and assembly connection structures (4) are set on the four sides of the reinforcing frame (1). The disassembly and assembly connection structure (4) includes a rectangular card frame (41), which is fixedly connected to the side of the reinforcing frame (1).

2. The multi-layered windbreak and sand-fixing device according to claim 1, characterized in that: The disassembly and reinforcement structure (2) also includes a second screw hole (24) at the bottom of the rectangular ring clamp block (22), and a first screw hole (23) is provided on the inner wall of the rectangular ring clamp groove (21). The inner walls of the first screw hole (23) and the second screw hole (24) are threadedly connected to a threaded clamp rod (25).

3. The multi-layered windbreak and sand-fixing device according to claim 1, characterized in that: A rectangular filter plate (27) is fixedly connected to the inner wall of the reinforcing frame (1), and a rectangular auxiliary frame (28) is fixedly connected to the inner wall of the rectangular filter plate (27). A sliding block (210) is slidably connected to the inner wall of the rectangular auxiliary frame (28).

4. The multi-layered windbreak and sand-fixing device according to claim 3, characterized in that: The bottom of the rectangular auxiliary frame (28) is provided with a rectangular through groove (29), the bottom of the sliding block (210) is fixedly connected with a sliding rod (211), the bottom end of the sliding rod (211) is fixedly connected with a rectangular connecting plate (212), and the bottom of the rectangular connecting plate (212) is fixedly connected with a guide rod (213).

5. A multi-layered windbreak and sand-fixing device according to claim 3, characterized in that: A circular connecting block (214) is fixedly connected to the top of the sliding block (210). A rectangular connecting block (215) is symmetrically fixedly connected to the outer surface of the circular connecting block (214). A first locking hole (216) is opened on the inner wall of the rectangular connecting block (215). A second locking hole (219) is symmetrically opened on the top of the rectangular filter plate (27). A locking rod (218) is engaged with the inner wall of the first locking hole (216) and the second locking hole (219). An auxiliary connecting block (217) is fixedly connected to the top of the locking rod (218).

6. The multi-layered windbreak and sand-fixing device according to claim 1, characterized in that: The protective covering structure (3) also includes a rectangular support plate (33) fixedly connected to one side of the rectangular slider (32). A support block (34) is fixedly connected to the top of the rectangular support plate (33). A rotating rod (35) is rotatably connected to one side of the two opposing rectangular sliders (32). A rotating block (36) is fixedly connected to the outer surface of the rotating rod (35). A cover plate (37) is fixedly connected to the outer surface of the rotating block (36). An operating handle (38) is fixedly connected to the outer surface of the cover plate (37).

7. A multi-layered windbreak and sand-fixing device according to claim 6, characterized in that: A U-shaped plate (39) is fixedly connected to one side of one of the cover plates (37). An auxiliary rotating rod (310) is rotatably connected between the two sides of the inner wall of the U-shaped plate (39). An auxiliary rotating block (311) is fixedly connected to the outer surface of the auxiliary rotating rod (310). An auxiliary connecting plate (312) is fixedly connected to the outer surface of the auxiliary rotating block (311). The outer surface of the auxiliary connecting plate (312) is fixedly connected to the other cover plate (37).

8. A multi-layered windbreak and sand-fixing device according to claim 7, characterized in that: One end of the auxiliary rotating rod (310) passes through one side of the U-shaped plate (39) and is fixedly connected to an operating block (313). The inner wall of the operating block (313) is threadedly connected to a threaded locking rod (314). A plurality of threaded locking holes (315) are opened on one side of the U-shaped plate (39). The plurality of threaded locking holes (315) are arranged at equal intervals along the circumference of the auxiliary rotating rod (310).

9. A multi-layered windbreak and sand-fixing device according to claim 1, characterized in that: The disassembly and assembly connection structure (4) also includes a filter screen plate (43), which is made of deformable iron wire. Rectangular clips (42) are symmetrically fixed on both sides of the filter screen plate (43), and the rectangular clips (42) and the rectangular clip frame (41) are engaged by friction.

10. A multi-layered windbreak and sand-fixing device according to claim 9, characterized in that: A third screw hole (44) is provided on one side of the rectangular card block (42), and a fourth screw hole (45) is provided on one side of the rectangular card frame (41). The inner walls of the third screw hole (44) and the fourth screw hole (45) are threadedly connected to a second threaded card rod (46).

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