Wind-erosion-resistant farmland three-dimensional protective net

Abstract

The invention relates to the technical field of farmland protective nets, in particular to a wind-erosion-resistant farmland three-dimensional protective net which comprises a plurality of net bodies and a plurality of vertical piles, the net bodies and the vertical piles are arranged in a staggered mode, two winding wheels are arranged in each vertical pile, a pull rope is detachably installed at one end of each net body, and a wind-erosion-resistant layer is arranged at the other end of each net body. The other end of the net body penetrates through the adjacent vertical piles in a sliding mode and then is fixed to the winding wheels on the inner side, the two winding wheels on the inner side of the same vertical pile are connected with the net body and the pull rope correspondingly, the other end of the pull rope is wound around the outer surfaces of the winding wheels, and the winding wheels connected with the pull rope are elastically and rotationally connected with the vertical piles. According to the device, blowing buffering on the net body can be achieved through elastic rotation of the winding wheels, and when wind power pushes a swing structure to drive a ridge sleeve to be matched with a ridge shaft and then drives a one-way transmission power storage mechanism to be separated from a vertical pile, torsion accumulated by the one-way transmission power storage mechanism drives the corresponding winding wheels to wind the net body; the net body is stored in the vertical piles to ensure that the vertical piles cannot incline or collapse due to large wind power.

Description

Technical Field

[0001] The present invention relates to the technical field of farmland protection nets, in particular to a wind-erosion-resistant three-dimensional farmland protection net. Background Art

[0002] Farmland protection net is one of the commonly used tools in agricultural production. It is mainly used to protect the plants in the farmland from being damaged or trampled by some animals. In the planting of more expensive crops, the protection net is an indispensable protective equipment, providing protection for farmland, anti-theft and bird-repelling security.

[0003] Chinese patent CN219118919U discloses a farmland protection net technical field, which is easy to disassemble and install. It includes a first mounting post, a limiting block fixedly welded to the bottom of the first mounting post, and first fixing hooks fixedly provided on the upper and lower sides of the left side wall of the first mounting post. A first winding drum is provided for vertical rotation between the upper and lower side walls of the inner cavity of the first mounting post, and a first bevel gear is fixedly sleeved on the upper end of the rotating shaft of the first winding drum. The first protective net is wound on the surface of the first winding drum, and a first winding drum and a second winding drum are provided. The two are synchronously connected and rotated through the first bevel gear and the second bevel gear, so that when the adjusting knob is turned, the first protective net and the second protective net can be expanded or retracted at the same time, eliminating the tedious process of disassembling and installing the two parts of the protective net separately, making disassembly, storage or installation more convenient and efficient.

[0004] The above-mentioned related technologies have the following defects: when the protective net is used to protect farmland, the protective net is supported by pillars. When the protective net is blown by wind, the protective net will be pulled by the wind, and the protective net will shake the pillars supporting the protective net. When the protective net is blown by wind many times and then blown by strong winds, the pillars supporting the protective net are prone to tilt and collapse, and when the pillars collapse, crops are easily damaged. For this reason, a three-dimensional farmland protective net that is resistant to wind erosion is proposed. Summary of the Invention

[0005] In order to reduce the tilt and collapse of the protective net caused by wind, the present invention provides a wind-erosion-resistant three-dimensional farmland protective net.

[0006] The present invention provides a three-dimensional farmland protection net that resists wind erosion, which adopts the following technical solution: it includes multiple mesh bodies and multiple stakes, the mesh bodies and stakes are arranged in an interlaced manner, two winding wheels are arranged inside the stakes, one end of the mesh body is detachably installed with a pull rope, and the other end of the mesh body slides through the adjacent stake and is fixed to the inner winding wheel, the two winding wheels inside the same stake are respectively connected to the mesh body and the pull rope, and the other end of the pull rope is wound around the outer surface of the winding wheel.

[0007] The winding wheel connected to the pull rope is elastically rotatably connected to the pile. The winding wheel connected to the pull rope is sleeved with a one-way transmission force storage mechanism. The one-way transmission force storage mechanism is elastically connected to the pile. The one-way transmission force storage mechanism slides sleeved on the lower end of another winding wheel. The lower end of the winding wheel connected to the net body is coaxially fixed with a prism shaft, and the lower end of the prism shaft is coaxially provided with a prism sleeve, which is connected to the one-way transmission force storage mechanism.

[0008] A lifting structure for pulling the edge sleeve upward is installed inside the pile. The upper end of the pile is rotatably connected to a swinging structure that can rotate when blown by wind. A lifting rope is fixed under the swinging structure. The lower end of the lifting rope slides through the upper surface of the pile and is connected to the lifting structure. The lifting structure can drive the edge sleeve to cooperate with the edge shaft and then drive the one-way transmission force storage mechanism to separate from the pile.

[0009] Optionally, the one-way transmission power storage mechanism includes gear A and gear B, gear A is meshed with gear B, the winding wheel connected to the pull rope and gear A are coaxially arranged, and gear A and the coaxially arranged winding wheel are connected in one-way transmission through a ratchet and ratchet groove structure.

[0010] The winding wheel connected to the net body is coaxially slidably connected to the gear B. The bottom surface of the gear B is elastically rotatably connected to the pile. The bottom surface of the gear B is equipped with a detachable one-way rotating structure, which is connected to the pile.

[0011] The upper surface of the gear B is coaxially fixed with the rib sleeve.

[0012] Optionally, the lifting structure includes a linkage frame and a ring frame, the linkage frame is located on the inner ring side of the ring frame, the linkage frame is rotatably sleeved on the outer surface of the edge sleeve, and the bottom surface of the linkage frame is elastically connected to the pile so that it can move up and down.

[0013] A ridge rod is fixed on the upper surface of the lifting ring frame. The ridge rod is elastically connected to the pile so as to be movable up and down. The upper end of the ridge rod is fixed to the lower end of the lifting rope.

[0014] There is a gap between the inner bottom wall of the inner ring surface of the lifting ring frame and the bottom surface of the linkage frame.

[0015] Optionally, the swing structure includes a top frame and a rocker arm, the middle part of the rocker arm is spherical, the upper end of the top frame is rotatably connected to the spherical part of the rocker arm, and the matching part of the top frame and the rocker arm is an adaptive annular spherical frame structure.

[0016] The upper end of the swing rod is fixed with a wind receiving plate, and the lower end of the swing rod is fixed to the upper end of the suspension rope.

[0017] Optionally, a straight plate is provided on the side of the lifting ring away from the winding wheel, the straight plate is elastically connected to the pile, the upper surface of the contact part between the straight plate and the lifting ring is inclined, and the inclined part of the straight plate is close to one end of the lifting ring and is located below the other end.

[0018] Optionally, a friction plate is vertically fixed to the upper surface of the straight plate, and the friction plate and the linkage frame are both uneven on the surface close to each other.

[0019] Optionally, the one-way rotation structure includes an annular tube and a sleeve, the sleeve is rotatably sleeved on the outer surface of the annular tube, the upper end of the annular tube is fixed to the bottom surface of the gear B, the annular tube is rotatably inserted into the inner bottom wall of the pile, and the sleeve is fixedly inserted into the inner bottom wall of the pile.

[0020] Optionally, the outer ring surface of the annular tube is provided with a plurality of slots, the inner ring surface of the sleeve is elastically connected with a corner block, the corner block is slidably inserted into one of the slots, and the corner block is a right triangle.

[0021] Optionally, vertical grooves are provided on both the left and right sides of the pile, and the pull rope and the net body are respectively passed through the corresponding vertical grooves.

[0022] In summary, the present invention has the following beneficial technical effects: The present invention provides components such as a pull rope, a net body, a prism shaft and a prism sleeve. When the net body is blown and swung by wind, the net body pulls the pull rope out from the surface of the corresponding winding wheel, and the winding wheel elastically rotates to buffer the blowing of the net body. At the same time, when the pull rope drives the corresponding winding wheel to rotate, the torque is stored through the one-way transmission force storage mechanism. When the wind drives the prism sleeve to cooperate with the prism shaft and then drives the one-way transmission force storage mechanism to separate from the pile, the torque accumulated by the one-way transmission force storage mechanism drives the corresponding winding wheel to wind around the net body, and the net body is received into the pile. The net body will no longer be blown by the wind, and it is ensured that the pile will not tilt and collapse due to strong wind.

[0023] The present invention provides components such as a hanging ring frame, a linkage frame and a prism. When the wind-receiving plate is blown by wind, the lower end of the swing arm is driven to swing and pull the hanging rope to drive the hanging ring frame to move upward. When the wind is strong, the wind-receiving plate is pushed to rotate a sufficient angle to pull the hanging rope and the prism upward a sufficient distance. Then, the inner bottom wall of the inner ring of the hanging ring frame pushes the linkage frame upward to drive the prism sleeve to move upward, ensuring that the prism sleeve and the prism shaft will not be driven to cooperate until the wind-receiving plate rotates a sufficient angle, effectively preventing the mesh plate from being received in the pile when the wind is weak.

[0024] The present invention provides components such as straight plates and friction plates. The elastic connection between the straight plates and the piles has a tendency to push the friction plates closer to the linkage frame. After the linkage frame moves upward and separates from the straight plates, the straight plates push the friction plates to squeeze the linkage frame, applying resistance to the movement of the linkage frame. After the lifting ring frame pushes the linkage frame upward, the speed at which the lifting ring frame resets downward is slowed down. When the wind-receiving plate swings in an unstable wind, the edge sleeve will not be separated from and matched with the edge rod back and forth, ensuring that the net body can be stably located inside the pile when the wind is unstable in windy weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 11 is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of a pile in an embodiment of the present invention; Figure 3 2 is a schematic structural diagram of the connection between the top frame and the swing arm in an embodiment of the present invention; Figure 4 2 is a schematic diagram of the structure of the connection between gear A and gear B in an embodiment of the present invention; Figure 5 is a schematic top view of part of the structure in an embodiment of the present invention; Figure 6 2. It is a structural diagram of the position distribution of the lifting ring frame and the linkage frame in an embodiment of the present invention; Figure 7 is a schematic side view of part of the structure in an embodiment of the present invention; Figure 8 It is a schematic front view of part of the structure in an embodiment of the present invention.

[0026] Figure numerals: 1. Net body; 2. Stake; 3. Winding wheel; 4. Pull rope; 5. One-way transmission power storage mechanism; 51. Gear A; 52. Gear B; 53. Ratchet tooth and groove structure; 54. One-way rotation structure; 541. Ring cylinder; 542. Sleeve; 543. Slot; 544. Corner block; 6. Lifting structure; 61. Linkage frame; 62. Lifting ring frame; 63. Edge rod; 64. Straight plate; 65. Friction plate; 7. Swinging structure; 71. Top frame; 72. Rocker arm; 73. Wind-receiving plate; 8. Edge shaft; 9. Edge sleeve; 10. Lifting rope; 11. Vertical groove. DETAILED DESCRIPTION

[0027] The following is combined with Figures 1-8 The present invention is described in further detail.

[0028] The embodiment of the present invention discloses a three-dimensional farmland protection net that resists wind erosion. Figures 1-8 As shown, it includes multiple net bodies 1 and multiple stakes 2. The net bodies 1 and the stakes 2 are arranged in an interlaced manner. Two winding wheels 3 are arranged inside the stakes 2. A pull rope 4 is detachably installed at one end of the net body 1. The pull rope 4 and the end close to the net body 1 are both installed with a flat plate. The two flat plates are detachably connected by bolts. The other end of the net body 1 slides through the adjacent stake 2 and is fixed to the winding wheel 3 on the inside. The two winding wheels 3 on the inside of the same stake 2 are respectively connected to the net body 1 and the pull rope 4. The other end of the pull rope 4 is wound around the outer surface of the winding wheel 3. Vertical grooves 11 are opened on the left and right sides of the stake 2. The pull rope 4 and the net body 1 are respectively inserted into the corresponding vertical grooves 11, and the pull rope 4 and the net body 1 slide in the vertical grooves 11.

[0029] The winding wheel 3 connected to the pull rope 4 is elastically connected to the pile 2 for rotation. The elastic connection between the winding wheel 3 and the pile 2 has a tendency to wind the pull rope 4. The winding wheel 3 and the pile 2 are elastically connected through a torsion spring. The winding wheel 3 connected to the pull rope 4 is sleeved with a one-way transmission force storage mechanism 5. The one-way transmission force storage mechanism 5 is elastically connected to the pile 2. The one-way transmission force storage mechanism 5 is slidably sleeved on the lower end of another winding wheel 3. When the net body 1 is blown by the wind, the pull rope 4 is pulled to drive the winding wheel 3 to rotate elastically, thereby buffering the wind force exerted on the net body 1. When the pull rope 4 drives the corresponding winding wheel 3 to rotate, the one-way transmission force storage mechanism 5 is used to transmit and store force.

[0030] The one-way transmission power storage mechanism 5 includes gear A51 and gear B52, gear A51 is meshed with gear B52, the winding wheel 3 connected to the pull rope 4 and the gear A51 are coaxially arranged, and the gear A51 and the coaxially arranged winding wheel 3 are connected for one-way transmission through a ratchet ratchet groove structure 53, the ratchet groove of the ratchet ratchet groove structure 53 is opened on the inner ring surface of the gear A51, and the ratchet structure of the ratchet ratchet groove structure 53 is elastically installed on the outer surface of the winding wheel 3 for one-way rotation, and when the pull rope 4 pulls the winding wheel 3 to rotate, the gear A51 is driven to rotate through the ratchet ratchet groove structure 53, and when the winding wheel 3 rotates in the opposite direction, the ratchet ratchet groove structure 53 of the winding wheel 3 rotates in an offset manner, so that the winding wheel 3 will not drive the gear A51 to rotate when it rotates in the opposite direction.

[0031] A prism shaft 8 is coaxially fixed to the lower end of the winding wheel 3 connected to the net body 1, and a prism sleeve 9 is coaxially provided at the lower end of the prism shaft 8. The prism sleeve 9 is connected to the one-way transmission force storage mechanism 5. The upper surface of the gear B52 is coaxially fixed to the prism sleeve 9. When the gear B52 moves upward to drive the prism sleeve 9 to cooperate with the prism shaft 8, the gear B52 can drive the connected winding wheel 3 to rotate synchronously through the prism shaft 8.

[0032] The winding wheel 3 connected to the net body 1 is coaxially slidably connected to the gear B52, and the bottom surface of the gear B52 is elastically rotatably connected to the stake 2. A detachable one-way rotating structure 54 is installed on the bottom surface of the gear B52, and the one-way rotating structure 54 is connected to the stake 2. The one-way rotating structure 54 ensures that only when the pull rope 4 pulls out the direction in which the winding wheel 3 drives the gear A51 to rotate can it drive the one-way driving gear B52 to rotate, and accumulates force for the gear B52 to rotate. When the gear B52 drives the one-way rotating structure 54 upward to disengage, the prism sleeve 9 first cooperates with the prism shaft 8, so that the force-accumulating gear B52 can drive the winding wheel 3 to wind around the net body 1 through the prism sleeve 9 and the cooperating prism shaft 8.

[0033] The one-way rotating structure 54 includes a ring tube 541 and a sleeve 542. The sleeve 542 is rotatably sleeved on the outer surface of the ring tube 541. The upper end of the ring tube 541 is fixed to the bottom surface of the gear B52. The ring tube 541 is rotatably inserted into the inner bottom wall of the pile 2, and the sleeve 542 is fixedly inserted into the inner bottom wall of the pile 2.

[0034] The outer ring surface of the ring tube 541 is provided with multiple slots 543, and the inner ring surface of the sleeve 542 is elastically connected with a corner block 544, which is slidably inserted into one of the slots 543. The elastic connection between the corner block 544 and the sleeve 542 has a tendency to push the corner block 544 to engage with the slot 543. The corner block 544 is a right-angled triangle. The pull rope 4 pulls out the winding wheel 3 to drive the gear A51 to rotate in the direction to drive the one-way driving gear B52 to rotate. At this time, the right-angled inclined surface of the corner block 544 is constantly dislocated from the slot 543, and the right-angled side of the corner block 544 ensures that the gear B52 will not rotate in the opposite direction. When gear B52 moves upward to drive the slot 543 to move to the upper side of the corner block 544, the prism sleeve 9 first cooperates with the prism shaft 8, and then after the slot 543 moves to the upper side of the corner block 544, the elastically force-storing gear B52 drives the winding wheel 3 to wind around the net body 1 through the prism sleeve 9 and the prism shaft 8, and the net body 1 is received inside the pile 2.

[0035] A lifting structure 6 is installed inside the pile 2 to pull the edge sleeve 9 upward. The upper end of the pile 2 is rotatably connected to a swing structure 7 that can rotate when blown by wind. A suspension rope 10 is fixed under the swing structure 7.

[0036] The swing structure 7 includes a top frame 71 and a rocker arm 72. The middle part of the rocker arm 72 is spherical. The upper end of the top frame 71 is rotatably connected to the spherical part of the rocker arm 72. The matching parts of the top frame 71 and the rocker arm 72 are adapted to form an annular spherical frame structure, so that the rocker arm 72 can rotate relative to the top frame 71 within a plurality of angular annular ranges.

[0037] A wind receiving plate 73 is fixed to the upper end of the swing rod 72, and the lower end of the swing rod 72 is fixed to the upper end of the suspension rope 10. The wind receiving plate 73 swings when it is blown by wind.

[0038] The lower end of the lifting rope 10 slides through the upper surface of the pile 2 and is connected to the lifting structure 6. The lifting structure 6 can drive the prism sleeve 9 to cooperate with the prism shaft 8 and then drive the one-way transmission power storage mechanism 5 to separate from the pile 2.

[0039] The lifting structure 6 includes a linkage frame 61 and a ring frame 62. The linkage frame 61 is located on the inner ring side of the ring frame 62. There is a gap between the inner bottom wall of the inner ring surface of the ring frame 62 and the bottom surface of the linkage frame 61, so that the ring frame 62 will not push the linkage frame 61 when it starts to move upward. After the inner bottom wall of the ring frame 62 contacts the linkage frame 61 and continues to move upward, it will push the linkage frame 61 to move upward. The linkage frame 61 is rotatably sleeved on the outer surface of the rib sleeve 9. The bottom surface of the linkage frame 61 is elastically connected to the pile 2 for moving up and down. The elastic connection between the linkage frame 61 and the pile 2 has a tendency to move downward. The upper surface of the ring frame 62 is fixed with a rib rod 63. The rib rod 63 3 is elastically connected to the pile 2 so as to be movable up and down. The upper end of the rib rod 63 is fixed to the lower end of the suspension rope 10. The elastic connection between the rib rod 63 and the pile 2 has a tendency to drive the rib rod 63 downward to tighten the suspension rope 10. When the wind-receiving plate 73 is blown by the wind, the lower end of the swing rod 72 is driven to swing and pull the suspension rope 10 to drive the eye frame 62 to move upward. When the wind is strong enough to push the wind-receiving plate 73 to rotate a sufficient angle to pull the suspension rope 10 and the rib rod 63 upward a sufficient distance, the inner bottom wall of the inner ring of the eye frame 62 pushes the linkage frame 61 upward to drive the rib sleeve 9 to move upward, ensuring that the rib sleeve 9 and the rib shaft 8 will be driven to cooperate only after the wind-receiving plate 73 rotates a sufficient angle.

[0040] The lifting ring frame 62 is provided with a straight plate 64 on the side away from the winding wheel 3. The straight plate 64 is elastically connected to the pile 2. The elastic connection between the straight plate 64 and the pile 2 has a tendency to push the straight plate 64 close to the linkage frame 61. The upper surface of the contact part between the straight plate 64 and the lifting ring frame 62 is inclined. The inclined part of the straight plate 64 is close to one end of the lifting ring frame 62 and is located at the lower side of the other end. A friction plate 65 is vertically fixed on the upper surface of the straight plate 64. After the linkage frame 61 moves upward and disengages from the straight plate 64, the straight plate 64 pushes the friction plate 65 to squeeze the linkage frame 61. The friction plate 65 and the linkage frame 61 are close to each other. The uneven shape creates resistance to the movement of the linkage frame 61 when the friction plate 65 contacts the linkage frame 61. After the lifting ring frame 62 pushes the linkage frame 61 upward, the speed at which the lifting ring frame 62 is reset downward is slowed down. When the wind-receiving plate 73 swings when the wind is unstable, the prism sleeve 9 will not reciprocate and cooperate with the prism rod 63, ensuring that the net body 1 can be stably located inside the pile 2 when the wind is unstable in windy weather. When the linkage frame 61 moves to the lowermost end, the linkage frame 61 drives the friction plate 65 to separate from the linkage frame 61 by pushing the inclined portion of the straight plate 64, so that the linkage frame 61 can be reset downward.

[0041] The elastic connection in this document is connected by elastic parts such as springs and elastic telescopic rods.

[0042] The working principle is as follows: the net body 1 is placed between two adjacent stakes 2, and then the stakes 2 are installed on the ground to protect the farmland. When the wind blows the net body 1, the swing structure 7 and the net body 1 swing under the wind. The net body 1 pulls the pull rope 4 out from the surface of the corresponding winding wheel 3, and the winding wheel 3 elastically rotates to buffer the blowing of the net body 1. At the same time, when the pull rope 4 drives the corresponding winding wheel 3 to rotate, the torque storage mechanism 5 is transmitted to the torsion storage mechanism 5. When the wind pushes the swing structure 7 to drive the prism sleeve 9 to cooperate with the prism shaft 8, When the one-way transmission force storage mechanism 5 is driven to disengage from the pile 2, the torque accumulated in the one-way transmission force storage mechanism 5 drives the corresponding winding wheel 3 to wind around the net body 1, and the net body 1 is stored in the pile 2. The net body 1 will no longer be blown by the wind, ensuring that the pile 2 will not tilt due to the strong wind. After the wind stops, the prism sleeve 9 disengages from the prism shaft 8, and the winding wheel 3 connected to the pull rope 4 re-winds the pull rope 4 to the surface under the elastic connection with the pile 2, and the net body 1 is pulled back between the two piles 2, so that the net body 1 is protected again.

[0043] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A three-dimensional farmland protection net for resisting wind erosion, comprising a plurality of net bodies (1) and a plurality of stakes (2), characterized in that: The net body (1) and the piles (2) are arranged in an interlaced manner, two winding wheels (3) are arranged inside the piles (2), one end of the net body (1) is detachably mounted with a pull rope (4), the other end of the net body (1) slides through the adjacent piles (2) and is fixed to the winding wheel (3) inside, the two winding wheels (3) inside the same pile (2) are respectively connected to the net body (1) and the pull rope (4), and the other end of the pull rope (4) is wound around the outer surface of the winding wheel (3); The winding wheel (3) connected to the pull rope (4) is elastically rotatably connected to the pile (2); the winding wheel (3) connected to the pull rope (4) is sleeved with a one-way transmission power storage mechanism (5); the one-way transmission power storage mechanism (5) is elastically connected to the pile (2); the one-way transmission power storage mechanism (5) is slidably sleeved on the lower end of another winding wheel (3); a prism shaft (8) is coaxially fixed to the lower end of the winding wheel (3) connected to the net body (1); a prism sleeve (9) is coaxially provided at the lower end of the prism shaft (8); and the prism sleeve (9) is connected to the one-way transmission power storage mechanism (5); A lifting structure (6) for pulling the prism sleeve (9) upward is installed inside the pile (2); the upper end of the pile (2) is rotatably connected to a swinging structure (7) that can be rotated by wind; a lifting rope (10) is fixed under the swinging structure (7); the lower end of the lifting rope (10) slides through the upper surface of the pile (2) and is connected to the lifting structure (6); the lifting structure (6) can drive the prism sleeve (9) to cooperate with the prism shaft (8) and drive the one-way transmission power storage mechanism (5) to separate from the pile (2).

2. The three-dimensional farmland protection net against wind erosion according to claim 1, characterized in that: The one-way transmission power storage mechanism (5) comprises a gear A (51) and a gear B (52), wherein the gear A (51) is meshed with the gear B (52), and the winding wheel (3) connected to the pull rope (4) and the gear A (51) are coaxially arranged, and the gear A (51) and the coaxially arranged winding wheel (3) are connected in a one-way transmission manner via a ratchet tooth and ratchet groove structure (53); The winding wheel (3) connected to the net body (1) and the gear B (52) are coaxially slidably connected, the bottom surface of the gear B (52) is elastically rotatably connected to the pile (2), and a detachable one-way rotating structure (54) is installed on the bottom surface of the gear B (52), and the one-way rotating structure (54) is connected to the pile (2); The upper surface of the gear B (52) is coaxially fixed to the prism sleeve (9).

3. The three-dimensional farmland protection net against wind erosion according to claim 1 or 2, characterized in that: The lifting structure (6) includes a linkage frame (61) and a ring frame (62), wherein the linkage frame (61) is located on the inner ring side of the ring frame (62), the linkage frame (61) is rotatably sleeved on the outer surface of the rim sleeve (9), and the bottom surface of the linkage frame (61) is elastically connected to the pile (2) so as to be movable up and down; A ridge rod (63) is fixed on the upper surface of the hoisting ring frame (62), the ridge rod (63) is elastically connected to the pile (2) so as to be movable up and down, and the upper end of the ridge rod (63) is fixed to the lower end of the hoisting rope (10); There is a gap between the inner bottom wall of the inner ring surface of the lifting ring frame (62) and the bottom surface of the linkage frame (61).

4. The three-dimensional farmland protection net against wind erosion according to claim 1, characterized in that: The swing structure (7) includes a top frame (71) and a swing rod (72), the middle portion of the swing rod (72) is spherical, the upper end of the top frame (71) is rotatably connected to the spherical portion of the swing rod (72), and the matching portion of the top frame (71) and the swing rod (72) is an adapted annular spherical frame structure; A wind receiving plate (73) is fixed to the upper end of the swing rod (72), and the lower end of the swing rod (72) is fixed to the upper end of the suspension rope (10).

5. The three-dimensional farmland protection net against wind erosion according to claim 3, characterized in that: The lifting ring frame (62) is provided with a straight plate (64) on one side away from the winding wheel (3), the straight plate (64) is elastically connected to the pile (2), the upper surface of the contact portion between the straight plate (64) and the lifting ring frame (62) is inclined, and the inclined portion of the straight plate (64) is close to one end of the lifting ring frame (62) and is located below the other end.

6. The three-dimensional farmland protection net against wind erosion according to claim 5, characterized in that: A friction plate (65) is vertically fixed to the upper surface of the straight plate (64), and the friction plate (65) and the linkage frame (61) are both uneven on the side close to each other.

7. The three-dimensional farmland protection net against wind erosion according to claim 2, characterized in that: The one-way rotation structure (54) comprises a ring cylinder (541) and a sleeve (542); the sleeve (542) is rotatably sleeved on the outer surface of the ring cylinder (541); the upper end of the ring cylinder (541) is fixed to the bottom surface of the gear B (52); the ring cylinder (541) is rotatably plugged into the inner bottom wall of the pile (2); and the sleeve (542) is fixedly plugged into the inner bottom wall of the pile (2).

8. The three-dimensional farmland protection net against wind erosion according to claim 7, characterized in that: The outer ring surface of the annular cylinder (541) is provided with a plurality of slots (543), and the inner ring surface of the sleeve (542) is elastically connected with a corner block (544). The corner block (544) is slidably inserted into one of the slots (543), and the corner block (544) is in the shape of a right triangle.

9. The three-dimensional farmland protection net against wind erosion according to claim 1, characterized in that: Vertical grooves (11) are provided on both left and right sides of the vertical pile (2), and the pull rope (4) and the net body (1) are respectively passed through the corresponding vertical grooves (11).

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