Windproof sand protection device for preventing and controlling desertification
By using support seats, reinforcement mechanisms and spreading components in wind protection devices, the problem of existing devices being easily damaged under strong winds or wind and sand conditions is solved, and stability and vegetation growth are promoted, and soil health is improved.
Patent Information
- Application Number
- CN202411544525.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-01-14
AI Technical Summary
Existing wind and sand protection devices are easily pulled out or blown down under strong wind or wind and sand conditions, and cannot effectively regulate wind and dust, affecting vegetation growth and soil health.
A wind-proof and sand protection device including a support base, reinforcement mechanism, adjustment mechanism and sprinkler assembly is designed to penetrate deep into the ground through an extension rod, insert the chisel into the soil through a servo motor, adjust the size of the mesh, and sow the sand fixing bacteria to enhance stability. , automatically adjust the size of ventilation holes and promote vegetation growth.
It improves the stability of the device and the windproof and sand fixing effect, automatically adjusts the size of the ventilation holes according to the wind power, promotes vegetation growth, improves soil structure and fertility, and reduces the possibility that sand is taken away by the wind.
Smart Images
Figure CN119308283A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of wind and sand protection, in particular to a wind and sand protection device for preventing and controlling desertification. Background Art
[0002] In many areas, strong winds carry large amounts of sand and dust, causing a decline in air quality and affecting the health and lives of people in surrounding areas. Sand storms are a serious threat to traffic safety and agricultural production. Desertification has caused a sharp decline in soil fertility, loss of water conservation capacity, and a sharp decline in biodiversity.
[0003] At present, some wind and sand protection devices have defects in fixation. Ordinary ground anchors or simple supporting structures are difficult to remain stable under the long-term impact of wind and sand. The wind in the desert is strong and the wind direction is changeable. Relying solely on gravity or simple plug-in fixation is easy to be pulled out or blown down, and cannot play a sustained and effective role in wind and sand protection. Most of the existing windbreaks have fixed mesh sizes and cannot be adjusted according to actual wind conditions. When the wind is low, the air circulation required for vegetation growth may be affected due to poor ventilation; in strong wind weather, it is impossible to effectively reduce wind speed and block wind and sand, resulting in a large amount of sand and dust passing over the windbreak, which greatly reduces the effect of wind and sand fixation. Summary of the invention
[0004] In view of the deficiencies of the prior art, the present invention provides a wind and sand protection device for preventing and controlling desertification, which solves the problem that the wind and sand protection device relies on gravity or simple plug-in fixation and is easily pulled out or blown down.
[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a windproof and sand protection device for preventing and controlling desertification, comprising a support seat, an extension rod is fixedly connected to one side of the outer wall of the support seat, the extension rod is deep into the ground, the support seat is fixedly connected to the inside of a reinforcement mechanism for enhancing the stability of the windproof and sand protection device, the other side of the outer wall of the support seat is fixedly connected to a connecting seat, the inside of the connecting seat is fixedly connected to a winding rack, the inside of the winding rack is rotatably connected to a round roller, the outer wall of the round roller is rolled up with a windproof net, the windproof net is composed of a layer of fixed net and a layer of sliding net, the other end of the windproof net is fixedly connected to an adjusting mechanism for adjusting the mesh size, the inside of the adjusting mechanism is also fixedly connected to a spreading assembly for spreading microorganisms on the sand surface.
[0006] Preferably, the reinforcement mechanism includes a fixing rod, one end of the fixing rod is fixedly connected to one side of the inner wall of the support seat, the other end of the fixing rod is fixedly connected to a limiting frame, a slider is slidably connected to the inside of the limiting frame, one side of the outer wall of the slider is fixedly connected to one end of a connecting rod, the other end of the connecting rod is fixedly connected to a chisel block, the chisel block penetrates the outer wall of the support seat, a servo motor is fixedly connected to the other side of the inner wall of the support seat, the output end of the servo motor is fixedly connected to a limiting plate, an empty groove is opened inside the limiting plate, the other side of the slider is fixedly connected to the limiting rod, and the limiting rod is slidably connected to the inside of the empty groove.
[0007] Preferably, the adjustment mechanism includes a concave buckle, a sliding hole is provided on one side of the outer wall of the concave buckle, the fixed net is fixedly connected to the sliding hole on one side, the sliding net is slidably connected to the sliding hole on one side, a convex buckle is engaged inside the concave buckle, a driving wheel is fixedly connected inside the convex buckle, a driven wheel is rotatably connected inside the concave buckle, a groove cam is fixedly connected to one side of the outer wall of the driven wheel, a limiting groove is provided inside the groove cam, one end of a T-shaped rod is slidably connected inside the limiting groove, and the other end of the T-shaped rod is fixedly connected to one side of the sliding net.
[0008] Preferably, the spreading assembly includes a storage cavity, which is opened on one side of the outer wall of the recessed buckle, and sand-fixing bacteria are placed inside the storage cavity. A sliding bin is slidably connected to one side of the outer wall of the storage cavity, and a long rod is fixedly connected to one side of the outer wall of the sliding bin. A plurality of sliding bins are connected by the long rod, and one end of a cross rod is fixedly connected to one side of the outer wall of the long rod, and the other end of the cross rod is fixedly connected to one end of a T-shaped rod.
[0009] Preferably, one side of the outer wall of the limiting rod is rotatably connected to a roller, and the roller rolls inside the empty groove.
[0010] Preferably, the driving wheel is meshingly connected with the driven wheel.
[0011] Preferably, the convex buckle and the concave buckle are rotatably engaged.
[0012] Preferably, the sand-fixing bacteria include one or more of nitrogen-fixing bacteria, arbuscular mycorrhizal fungi, actinomycetes and cyanobacteria.
[0013] Preferably, one end of the chisel block and the extension rod are both provided with a slope.
[0014] Preferably, one end of the round roller passes through the winding frame and is fixedly connected to one end of a clockwork spring, and the other end of the clockwork spring is fixedly connected to the top wall of the winding frame.
[0015] Working principle: After the support seat of the wind and sand protection device for preventing and controlling desertification is placed in the desert area, the extension rod is inserted into the ground, and the support seat is initially stabilized by relying on its own structure and friction with the soil, and then the servo motor is started, the motor drives the limit plate to rotate, and the empty groove on the limit plate is slidably connected with the limit rod of the slider, and the roller makes the limit rod roll smoothly in the empty groove, and the movement of the limit rod drives the slider to slide back and forth horizontally in the limit frame, and the chisel block is extended or retracted from the support seat through the connecting rod. The end of the chisel block has a slope, which is easy to insert into the soil. Multiple chisels are inserted into the soil from different directions to increase the contact area between the support seat and the soil and improve the stability of the device. When wind acts on the windbreak net, if the wind force is strong, the wind force is transmitted to the adjustment mechanism. Due to the special rotating engagement structure of the convex buckle and the concave buckle, the driving wheel and the driven wheel rotate relative to each other due to the wind force, and the driving wheel drives the driven wheel to rotate, thereby rotating the groove cam, and the groove cam inside The limiting groove guides the T-bar to move up and down, and the T-bar drives the sliding net to move along the sliding hole relative to the fixed net, thereby reducing the area of the ventilation holes, reducing the wind speed and the impact force of wind and sand, and playing a role in preventing wind and fixing sand. When the wind force decreases, the driving wheel and the driven wheel rotate relative to each other, and the sliding net moves in the opposite direction, increasing the area of the ventilation holes and providing a suitable ventilation environment for vegetation. At the same time, the windproof net is affected by the wind force to make the T-bar move up and down, driving the cross bar to move synchronously, and the cross bar is transmitted to the sliding bin through the long bar. When the cross bar moves up, the sliding bin slides up, and a gap appears between the storage cavity and the sliding bin. The sand-fixing bacteria flow out and spread under the action of gravity and pressure difference; when the cross bar moves down, the sliding bin slides down and squeezes the sand-fixing bacteria to spread again. Under the continuous action of wind force, the function of continuous spreading of sand-fixing bacteria is realized, and various sand-fixing bacteria such as nitrogen-fixing bacteria play a role in sandy land, promote plant growth, improve soil structure and fertility, and comprehensively prevent and control desertification from multiple aspects such as wind prevention, sand fixation, and promoting vegetation growth.
[0016] The present invention provides a wind and sand protection device for preventing and controlling desertification. It has the following beneficial effects:
[0017] 1. After the support base is initially fixed underground by extending the rod, the servo motor drives the chisel block to extend and insert into the soil. The chisel block is inserted from different directions, which greatly increases the contact area between the bottom of the support base and the soil. When the wind and sand are raging, it can withstand stronger impact and is not easy to be blown down or displaced.
[0018] 2. The regulating mechanism in the present invention automatically adjusts the mesh size according to the wind force. When strong winds come, the sliding net moves to reduce the ventilation hole area, reducing the amount of wind and sand passing through and the wind speed, greatly reducing the possibility of sand being carried away by the wind. When the wind force is small, the ventilation hole area increases, which not only ensures the circulation of air, but also provides a suitable wind environment for vegetation growth.
[0019] 3. The spreading assembly of the present invention promotes the spreading of sand-fixing bacteria when the wind force is relatively low, which helps the growth of vegetation roots and the overall development of plants, improves the survival rate and growth rate of vegetation, and accelerates the ecological restoration process in desert areas. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A three-dimensional diagram of the wind and sand protection device of the present invention;
[0021] Figure 2 It is a schematic diagram of the wind and sand protection device in the present invention;
[0022] Figure 3 for Figure 2 A in the enlarged view;
[0023] Figure 4 for Figure 2 The enlarged view of point B in the figure;
[0024] Figure 5 This is a diagram showing the wind and sand protection device of the present invention;
[0025] Figure 6 is a schematic diagram of the reinforcement mechanism in the present invention;
[0026] Figure 7 for Figure 6 The enlarged view of point C in the figure;
[0027] Figure 8 It is a schematic diagram of the spreading assembly in the present invention.
[0028] Among them, 1. support seat; 2. extension rod; 3. fixed net; 4. connecting seat; 5. winding frame; 6. round roller; 7. windproof net; 8. sliding net; 9. sand-fixing bacteria; 10. fixed rod; 11. limit frame; 12. slider; 13. connecting rod; 14. chisel block; 15. servo motor; 16. limit plate; 17. empty slot; 18. limit rod; 19. concave buckle; 20. sliding hole; 21. convex buckle; 22. driving wheel; 23. driven wheel; 24. groove cam; 25. limit slot; 26. T-bar; 27. storage chamber; 28. sliding bin; 29. long rod; 30. cross bar; 31. roller; 32. spring; 33. ramp. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0030] Please see attached Figure 1-Attached Figure 8 The embodiment of the present invention provides a windproof and sand-protecting device for preventing and controlling desertification, including a support seat 1, an extension rod 2 is fixedly connected to one side of the outer wall of the support seat 1, the extension rod 2 extends deep into the ground, a reinforcement mechanism is fixedly connected to the inside of the support seat 1, and is used to enhance the stability of the windproof and sand-protecting device, a connecting seat 4 is fixedly connected to the other side of the outer wall of the support seat 1, a winding frame 5 is fixedly connected to the inside of the connecting seat 4, a round roller 6 is rotatably connected to the inside of the winding frame 5, a windproof net 7 is rolled up on the outer wall of the round roller 6, and the windproof net 7 is composed of a fixed net 3 and a sliding net 8. The other end of the windproof net 7 is fixedly connected to an adjusting mechanism for adjusting the mesh size, and a sowing component is also fixedly connected to the inside of the adjusting mechanism, which is used to sow microorganisms on the surface of the sand;
[0031] The reinforcement mechanism includes a fixing rod 10, one end of which is fixedly connected to one side of the inner wall of the support seat 1, and the other end of the fixing rod 10 is fixedly connected to a limiting frame 11, a slider 12 is slidably connected inside the limiting frame 11, one end of a connecting rod 13 is fixedly connected to one side of the outer wall of the slider 12, and a chisel block 14 is fixedly connected to the other end of the connecting rod 13, and the chisel block 14 penetrates the outer wall of the support seat 1, and a servo motor 15 is fixedly connected to the other side of the inner wall of the support seat 1, and the output end of the servo motor 15 is fixedly connected to a limiting plate 16, and an empty groove 17 is opened inside the limiting plate 16, and a limiting rod 18 is fixedly connected to the other side of the slider 12, and the limiting rod 18 is slidably connected inside the empty groove 17;
[0032] A roller 31 is rotatably connected to one side of the outer wall of the limiting rod 18, and the roller 31 rolls inside the empty slot 17;
[0033] Specifically, after the support seat 1 is placed in the selected desert area, the extension rod 2 is first inserted into the ground to play a role in preliminary fixing and positioning. The extension rod 2 goes deep into the ground and uses its own structure and friction with the soil to initially stabilize the position of the support seat 1, providing a basis for subsequent reinforcement. After starting the servo motor 15, the output end of the motor drives the limit plate 16 to rotate. Since an empty slot 17 is provided on the limit plate 16 and is slidably connected to the limit rod 18 on one side of the slider 12, when the limit plate 16 rotates, the edge of the empty slot 17 will generate a force on the limit rod 18, and the limit rod 18 rolls in the empty slot 17 through the roller 31, reducing friction resistance and making the movement smoother. As the limit plate 16 rotates, the limit rod 18 will move along a specific trajectory in the empty slot 17. The limit rod 18 is fixedly connected to the slider 12, and the slider 12 is in the limit frame 11. The movement of the limit rod 18 drives the slider 12 to slide back and forth horizontally in the limit frame 11. The slider 12 is connected to the chisel block 14 through the connecting rod 13. The horizontal movement of the slider 12 drives the chisel block 14 to extend or retract the support seat 1. When the chisel block 14 extends outward from the support seat 1, the chisel block 14 is gradually inserted into the surrounding soil under the power provided by the servo motor 15. Due to the opening of the slope 33 at the end of the chisel block 14, the end of the chisel block 14 is sharper and can penetrate the soil more easily. As the chisel block 14 is continuously inserted into the soil, the contact area between the bottom of the support seat 1 and the soil increases. Multiple chisel blocks 14 are inserted into the soil from different directions, making the connection between the support seat 1 and the soil more stable, greatly improving the overall stability of the wind and sand protection device when facing external forces such as wind and sand, and preventing it from being easily blown down or moved.
[0034] The adjustment mechanism includes a concave buckle 19, a sliding hole 20 is provided on one side of the outer wall of the concave buckle 19, the fixed net 3 is fixedly connected to the sliding hole 20 on one side, the sliding net 8 is slidably connected to the sliding hole 20 on one side, a convex buckle 21 is engaged inside the concave buckle 19, a driving wheel 22 is fixedly connected inside the convex buckle 21, a driven wheel 23 is rotatably connected inside the concave buckle 19, a groove cam 24 is fixedly connected to one side of the outer wall of the driven wheel 23, a limiting groove 25 is provided inside the groove cam 24, one end of a T-shaped rod 26 is slidably connected inside the limiting groove 25, and the other end of the T-shaped rod 26 is fixedly connected to one side of the sliding net 8;
[0035] The driving wheel 22 is meshedly connected with the driven wheel 23;
[0036] The convex buckle 21 and the concave buckle 19 are rotatably engaged;
[0037] Specifically, the concave buckle 19 and the convex buckle 21 are connected together through a special rotating snap-fit structure, which fixes the windproof net 7 at both ends in appropriate positions during connection, and the fixed net 3 is fixedly connected to the sliding hole 20 on one side of the concave buckle 19, thereby ensuring the stability of one end of the windproof net 7. The sliding net 8 is slidably connected with the sliding hole 20, providing the basic conditions for subsequent movement and adjustment. The driving wheel 22 is fixed inside the convex buckle 21, and the driven wheel 23 rotates inside the concave buckle 19. The two are meshed and connected to form a transmission structure. When the windproof net 7 is subjected to strong wind force, the force of the wind is transmitted to the windproof net 7, and then transmitted to the adjustment mechanism connected to the windproof net 7. Since the convex buckle 21 and the concave buckle 19 are engaged and can rotate relative to each other, the force of the wind causes the driving wheel 22 and the driven wheel 23 to rotate relative to each other. The rotation of the driving wheel 22 drives the driven wheel 23 meshed with it to rotate. When the driven wheel 23 rotates, the groove cam 24 fixed on one side of its outer wall also rotates accordingly. The limit groove 25 inside the groove cam 24 provides a motion track for the T-bar 26. As the groove cam 24 rotates, the shape and position of the limit groove 25 change, so that the T-bar 26 slides in the limit groove 25 and produces an upward and downward displacement. One end of the T-bar 26 is fixedly connected to one side of the sliding net 8. The upward and downward movement of the T-bar 26 drives the sliding net 8 to move along the sliding hole 20 relative to the fixed net 3. When the wind force is strong, the sliding net 8 moves in the direction of reducing the area of the ventilation holes, and the overlapped part with the fixed net 3 increases, thereby reducing the area of the ventilation holes in the windproof net 7. In this way, the volume of the wind flow passing through the windproof net 7 is reduced, the wind speed is reduced, and the wind and sand are The impact force is weakened, which plays a better role in preventing wind and fixing sand, reduces the possibility of sand being blown away, and also reduces the damage to vegetation caused by strong winds. When the wind force is slightly smaller, due to the reduction in the force of the wind, the relative rotation of the driving wheel 22 and the driven wheel 23 changes. Under the coordinated action of the groove cam 24, T-bar 26 and other components, the sliding net 8 moves in the opposite direction, and the area of the ventilation holes increases, so that a certain amount of wind can pass through the windproof net 7, providing a suitable ventilation environment for vegetation growth, promoting vegetation growth, and realizing the function of automatically adjusting the ventilation volume according to the wind force.
[0038] The spreading assembly includes a storage chamber 27, which is opened on one side of the outer wall of the concave buckle 19, and the sand-fixing bacteria 9 are contained in the storage chamber 27. A sliding bin 28 is slidably connected to one side of the outer wall of the storage chamber 27, and a long rod 29 is fixedly connected to one side of the outer wall of the sliding bin 28. Multiple sliding bins 28 are connected by the long rod 29, and one end of a cross bar 30 is fixedly connected to one side of the outer wall of the long rod 29, and the other end of the cross bar 30 is fixedly connected to one end of the T-shaped rod 26;
[0039] The sand-fixing bacteria 9 include one or more of nitrogen-fixing bacteria, arbuscular mycorrhizal fungi, actinomycetes and cyanobacteria;
[0040] Specifically, when the windproof net 7 is affected by wind, the driving wheel 22 and the driven wheel 23 rotate relative to each other, driving the groove cam 24 to rotate, so that the T-bar 26 moves up and down. Since the cross bar 30 is fixedly connected to the T-bar 26, the up and down movement of the T-bar 26 drives the cross bar 30 to move up and down synchronously. The movement of the cross bar 30 is transmitted to the sliding bin 28 through the long rod 29. When the cross bar 30 moves upward, the sliding bin 28 is driven to slide upward by the long rod 29. At this time, a relative displacement occurs between the sliding bin 28 and the storage chamber 27, and a gap appears between the bottom of the storage chamber 27 and the sliding bin 28. The sand-fixing bacteria 9 originally enclosed in the storage chamber 27 by the sliding bin 28 begins to flow out and spread to the outside under the action of gravity and the pressure difference caused by the gap. When the cross bar 30 moves downward, the sliding bin 28 slides downward, squeezing and pushing the sand-fixing bacteria 9 at the bottom of the storage chamber 27 again, further promoting the spreading of the sand-fixing bacteria 9. In this process, since the windbreak net 7 is continuously acted upon by wind, the T-bar 26 continues to move up and down, thereby driving the cross bar 30, the long bar 29 and the sliding bin 28 to continuously repeat the above actions, thereby realizing the function of continuously spreading the sand-fixing bacteria 9. These sand-fixing bacteria 9 include various types such as nitrogen-fixing bacteria, arbuscular mycorrhizal fungi, actinomycetes and cyanobacteria, which can play their respective roles in the sand. For example, nitrogen-fixing bacteria can convert nitrogen in the air into a nitrogen source that can be used by plants, promoting plant growth; arbuscular mycorrhizal fungi can form a symbiotic relationship with plant roots, enhancing the plant's ability to absorb water and nutrients; actinomycetes and cyanobacteria can also play a positive role in improving soil structure and increasing soil fertility, which is conducive to the growth of vegetation and the improvement of the ecological environment in desert areas.
[0041] The chisel block 14 and one end of the extension rod 2 are both provided with a slope 33;
[0042] Specifically, due to the provision of the slopes 33 at the ends of the chisel block 14 and the extension rod 2, the ends of the chisel block 14 and the extension rod 2 are sharper and can penetrate the soil more easily.
[0043] One end of the round roller 6 passes through the winding frame 5 and is fixedly connected to one end of the spring 32, and the other end of the spring 32 is fixedly connected to the top wall of the winding frame 5;
[0044] Specifically, when the windproof net 7 is pulled out from the round roller 6 and unfolded, the round roller 6 will rotate accordingly. In this process, the rotation of the round roller 6 drives the spring 32 connected thereto to undergo elastic deformation, and the spring 32 begins to store elastic potential energy. Since the spring 32 has the characteristic of tending to return to its original state, it will apply a reverse torque force to the round roller 6. Under the action of wind and sand, if the windproof net 7 is subjected to a large pulling force and causes over-extension, the elastic potential energy stored in the spring 32 increases. This elastic force can play a buffering role and prevent the windproof net 7 from being torn and damaged due to excessive instantaneous pulling force. At the same time, when the external force gradually decreases, the elastic potential energy stored in the spring 32 begins to be released, driving the round roller 6 to rotate in the opposite direction and reeling the windproof net 7. In this way, not only can the windproof net 7 always maintain a certain degree of tension to ensure its wind and sand fixation effect, but it can also extend the service life of the windproof net 7 and reduce the manpower and material costs caused by frequent replacement of the windproof net 7.
[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A wind and sand protection device for preventing and controlling desertification, comprising a support seat (1), characterized in that: An extension rod (2) is fixedly connected to one side of the outer wall of the support seat (1), and the extension rod (2) extends deep into the ground. A reinforcement mechanism is fixedly connected to the inside of the support seat (1), which is used to enhance the stability of the wind and sand protection device. A connecting seat (4) is fixedly connected to the other side of the outer wall of the support seat (1). A winding frame (5) is fixedly connected to the inside of the connecting seat (4). A round roller (6) is rotatably connected to the inside of the winding frame (5). A windproof net (7) is rolled up on the outer wall of the round roller (6). The windproof net (7) is composed of a fixed net (3) and a sliding net (8). The other end of the windproof net (7) is fixedly connected to an adjustment mechanism for adjusting the mesh size. A spreading component is also fixedly connected to the inside of the adjustment mechanism, which is used to spread microorganisms onto the surface of the sand.
2. The wind and sand protection device for preventing and controlling desertification according to claim 1, characterized in that: The reinforcement mechanism comprises a fixing rod (10), one end of which is fixedly connected to one side of the inner wall of the support seat (1), the other end of which is fixedly connected to a limiting frame (11), a slider (12) being slidably connected inside the limiting frame (11), one end of a connecting rod (13) being fixedly connected to one side of the outer wall of the slider (12), the other end of which is fixedly connected to a chisel block (14), the chisel block (14) penetrating the outer wall of the support seat (1), a servo motor (15) being fixedly connected to the other side of the inner wall of the support seat (1), the output end of the servo motor (15) being fixedly connected to a limiting plate (16), a hollow groove (17) being provided inside the limiting plate (16), the other side of the slider (12) being fixedly connected to a limiting rod (18), the limiting rod (18) being slidably connected inside the hollow groove (17).
3. The wind and sand protection device for preventing and controlling desertification according to claim 1, characterized in that: The adjustment mechanism comprises a concave buckle (19), a sliding hole (20) is provided on one side of the outer wall of the concave buckle (19), the fixed net (3) is fixedly connected to the sliding hole (20) on one side, the sliding net (8) is slidably connected to the sliding hole (20) on one side, a convex buckle (21) is engaged inside the concave buckle (19), a driving wheel (22) is fixedly connected inside the convex buckle (21), a driven wheel (23) is rotatably connected inside the concave buckle (19), a groove cam (24) is fixedly connected to one side of the outer wall of the driven wheel (23), a limiting groove (25) is provided inside the groove cam (24), one end of a T-shaped rod (26) is slidably connected inside the limiting groove (25), and the other end of the T-shaped rod (26) is fixedly connected to one side of the sliding net (8).
4. The wind and sand protection device for preventing and controlling desertification according to claim 3, characterized in that: The spreading assembly comprises a storage chamber (27), wherein the storage chamber (27) is provided on one side of the outer wall of the recessed buckle (19), wherein sand-fixing bacteria (9) are contained in the storage chamber (27), wherein one side of the outer wall of the storage chamber (27) is slidably connected to a sliding bin (28), wherein one side of the outer wall of the sliding bin (28) is fixedly connected to a long rod (29), wherein a plurality of sliding bins (28) are connected via the long rod (29), wherein one side of the outer wall of the long rod (29) is fixedly connected to one end of a cross rod (30), and the other end of the cross rod (30) is fixedly connected to one end of a T-shaped rod (26).
5. The wind and sand protection device for preventing and controlling desertification according to claim 2, characterized in that: One side of the outer wall of the limiting rod (18) is rotatably connected to a roller (31), and the roller (31) rolls inside the empty groove (17).
6. The wind and sand protection device for preventing and controlling desertification according to claim 3, characterized in that: The driving wheel (22) is meshingly connected with the driven wheel (23).
7. The wind and sand protection device for preventing and controlling desertification according to claim 3, characterized in that: The convex buckle (21) and the concave buckle (19) are rotatably engaged.
8. The wind and sand protection device for preventing and controlling desertification according to claim 4, characterized in that: The sand-fixing bacteria (9) include one or more of nitrogen-fixing bacteria, arbuscular mycorrhizal fungi, actinomycetes and cyanobacteria.
9. The wind and sand protection device for preventing and controlling desertification according to claim 2, characterized in that: The chisel block (14) and one end of the extension rod (2) are both provided with a slope (33).
10. The wind and sand protection device for preventing and controlling desertification according to claim 1, characterized in that: One end of the round roller (6) passes through the winding frame (5) and is fixedly connected to one end of a spring (32), and the other end of the spring (32) is fixedly connected to the top wall of the winding frame (5).