Strip-shaped composite planting with separate control wind curtain spray boom truss

Abstract

The present invention relates to the technical field of pesticide spraying equipment, and specifically to a strip-shaped composite planting belt-shaped and controlled wind curtain-type spray boom truss, comprising a connecting frame and a hydraulic lifting mechanism fixed to one side of the connecting frame, a wind duct located directly above the hydraulic lifting mechanism fixed to one side of the top of the connecting frame, an axial flow fan fixed to the top of the connecting frame at a position corresponding to the wind duct, one end of the wind duct connected to two branch pipes, and the other end symmetrically connected to two second wind bag pipes. In the present invention, a partition is provided between the main spray frame and the auxiliary spray frame, and a frame is connected to the bottom of the partition by a connecting spring. The running wheels at the bottom of the frame are used to move in contact with the ground, so that the gap between the bottom end of the frame and the ground can always be kept stable, thereby avoiding mixing of the sprayed liquid from the main spray frame and the auxiliary spray frame, ensuring the quality of the corn and soybean strip composite planting, and being suitable for plant protection operations under corn and soybean strip composite planting modes of different cycles.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide spraying equipment, and in particular to a belt-shaped composite planting belt-controlled wind curtain type spray boom truss. Background Art

[0002] In the corn and soybean strip composite planting mode, ordinary sprayers are used to spray a single pesticide and are suitable for single-crop fields. Existing strip sprayers can simply spray different crops with different pesticide solutions, but the pesticide solution isolation is poor and the structure is bloated, which makes transportation inconvenient and the mixing of different pesticide solutions leads to crop reduction.

[0003] Different pesticide solutions are used for corn and soybeans during plant protection operations, so cross-belt drift of different pesticide solutions needs to be strictly controlled to avoid significant yield reductions caused by pesticide damage. Agronomic requirements such as soybean classification, synchronous belt division, and plant height differences make it difficult for ordinary sprayers to perform plant protection operations under this planting pattern. Manual operations are time-consuming and labor-intensive, and the pesticides are highly harmful to the human body. When the road conditions in the field are poor, the amplitude of the spray boom is too large, making it difficult for ordinary sprayers to achieve the best spray effect. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of the present invention is to provide a strip-shaped composite planting and strip-controlled wind curtain spray boom truss, which is provided by arranging a partition between the main spray frame and the auxiliary spray frame, and connecting a frame to the bottom of the partition through a connecting spring. The walking wheels at the bottom of the frame are used to walk in contact with the ground, and the gap between the bottom end of the frame and the ground can always be kept stable, so as to avoid the mixing of the liquid medicine sprayed by the main spray frame and the auxiliary spray frame, and ensure the quality of the corn and soybean strip composite planting; at the same time, when the height of the sprayed crops changes, the vertical height of the main spray frame and the auxiliary spray frame can be adjusted by a hydraulic lifting mechanism, and the vertical height of the auxiliary spray frame can be adjusted for the second time by a linear guide rail, and the auxiliary spray frame drives the cover plate to move up through the cross bar during the upward movement process, and can use the rubber roller curtain to continuously isolate the liquid medicine after the auxiliary spray frame moves up, so that it is suitable for plant protection operations in the corn and soybean strip composite planting mode with different cycles.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A strip-shaped composite planting zone-controlled wind curtain spray boom truss includes a connecting frame and a hydraulic lifting mechanism fixed to one side of the connecting frame. An air duct located directly above the hydraulic lifting mechanism is fixed to one side of the top of the connecting frame. An axial flow fan is fixed to the top of the connecting frame at a position corresponding to the air duct. One end of the air duct is connected to two branch pipes, and the other end is symmetrically connected to two second air bag tubes. Two main spray frames are fixed to the bottom of the two second air bag tubes. Connecting rods are rotatably connected to both sides of the hydraulic lifting mechanism. A main spray frame is fixed to one side of each of the two connecting rods. The two second air bag tubes are respectively fixed to the top of the main spray frame and are connected to the interior of the main spray frame.

[0007] One end of the main spray frame is rotatably connected to the adjustment mechanism, and a sub-spray frame is provided on one side of the adjustment mechanism. The adjustment mechanism is used to adjust the position of the sub-spray frame. A first air bag tube connected to the inside of the branch pipe is fixed on the sub-spray frame. Both the main spray frame and the sub-spray frame are fixed with a medicine inlet pipe for introducing liquid medicine. When the device is in use, the main spray frame and the sub-spray frame use different liquid medicines to spray different crops at the same time, which can realize the strip-shaped composite planting of crops spraying liquid medicine. When the main spray frame encounters changes in crop height when spraying liquid medicine, the spraying height of the main spray frame is adjusted by the hydraulic lifting mechanism, and the wind of the axial flow fan enters the first air bag tube and the second air bag tube through the air duct, which can make the liquid medicine of the main spray frame and the sub-spray frame spray out forcefully, preventing natural wind from changing the spraying direction of the liquid medicine.

[0008] Furthermore, the adjustment mechanism includes a guide rail connecting frame rotatably connected to one end of the adjacent main spray frame, a linear guide rail is fixed to one side of the guide rail connecting frame of the L-shaped rod structure, and a rotating block is fixed to one side of the linear guide rail, and a connecting ear rotatably connected to the rotating block is fixed to one end of the auxiliary spray frame, and through holes are provided at corresponding positions of the rotating block and the connecting ear, and a pin is movably inserted into the inner side of the through hole. When the device is running, when the height of the crops on the auxiliary spray frame changes, the adjustment mechanism needs to adjust the vertical height of the auxiliary spray frame through the linear guide rail to adapt to the crops of different heights on the auxiliary spray frame. When the device is stored, the auxiliary spray frame can be changed from the working state to the storage state by removing the rotating block and the pin of the through hole of the connecting ear, and then by rotating the L-shaped guide rail connecting frame of the adjustment mechanism upward by 90 degrees, the external size of the device can be reduced, which is convenient for transportation and storage of the device.

[0009] Furthermore, the end of the connecting rod is provided with an isolation mechanism for separating the main spray frame and the auxiliary spray frame, the isolation mechanism includes a partition with cavities at the top and bottom ends, a strip through hole is provided in the middle of the partition, a guide rail is fixed on one side of the partition, and a sliding block is slidably engaged with the inner side of the guide rail, the connecting rod is rotatably connected to the end of an adjacent sliding block, a frame is provided inside the cavity at the bottom end of the partition, and a walking wheel is fixed on the frame with a rounded bottom end, and a connecting spring is fixed between the top surface of the frame and the inner top surface of the cavity at the bottom end of the partition. When the main spray frame and the auxiliary spray frame of the device use different liquids to spray different crops at the same time, by arranging an isolation mechanism between the main spray frame and the auxiliary spray frame, natural wind can be prevented from changing the spraying direction of the liquid, thereby ensuring the correct spraying of the liquid. In addition, a frame is connected to the bottom of the partition through a connecting spring. The walking wheels at the bottom of the frame are used to move in contact with the ground, so the gap between the bottom end of the frame and the ground can always be kept stable. This can avoid the mixing of the spray liquid from the main spray frame and the auxiliary spray frame, and ensure the quality of corn and soybean strip composite planting.

[0010] The invention also provides a method for the lifting of the lifting bridge, wherein the lifting arm is fixed with a plurality of lifting arms, the lifting arm is fixed with a plurality of lifting arms, and the lifting arm is fixed with a plurality of lifting arms. The lifting arm is fixed with a plurality of lifting arms, and the lifting arm is fixed with a plurality of lifting arms. When the device is stored, the main spray frame, auxiliary spray frame and adjustment mechanism stored in a horizontal state are wrapped with the pulled-out rubber roller curtain, and the partition and the frame are fixed with the fixing column on one side of the cover plate. The pulled-out rubber roller curtain can protect the main spray frame, auxiliary spray frame and adjustment mechanism as a whole, prevent mud and other substances from clogging the water outlet of the spray frame, and ensure the normal use of the spray frame.

[0011] Furthermore, two fixing columns are symmetrically fixed on the other side of the cover plate, and two symmetrical positioning holes 1 are opened at the bottom of the partition on one side below the guide rail. Multiple positioning holes 2 are vertically opened at the two ends of the frame corresponding to the two positioning holes 1. When the device is stored, after the auxiliary spray rack is returned to its position, the rubber roller curtain is pulled out through the cover plate to wrap the auxiliary spray rack and the main spray rack, and the fixing columns on one side of the cover plate are inserted into the partition positioning hole 1 and the frame positioning hole 2. The partition and the frame are fixed with the fixing columns, which meets the scenario where the walking wheels do not need to be adjusted up and down in height after storage, and can also protect the service life of the connecting spring.

[0012] Furthermore, the hydraulic lifting mechanism includes a first suspension frame and a second suspension frame, both of which are frame structures with rectangular outer frames, and the four corners of the first suspension frame and the second suspension frame are rotatably connected by connecting rods, wherein the two connecting rods located above are rotatably connected to one end of the second suspension frame close to the second suspension frame, and one end of the electric hydraulic push rod is rotatably connected to the bottom of the first suspension frame. When the height of the crop sprayed by the main spray frame changes, the output end of the electric hydraulic push rod is adjusted to move, so that the vertical height of the second suspension frame can be pushed through the connecting rod, and then the position of the main spray frame is adjusted, so that the device can adjust the spraying height of the main spray frame according to crops of different heights.

[0013] Furthermore, a vertical rod is fixed vertically in the middle of the connecting frame of the rectangular frame structure, and two connecting plates are rotatably connected to the middle of the vertical rod. A circular hole is opened at one end of each of the two connecting plates, and a fixing screw for passing through the circular hole is screwed on the connecting frame. When the device is stored for transportation, the fixing screw for fixing the connecting plate that is screwed on the connecting frame is taken out, the connecting plate is rotated 90 degrees, and a bolt is used to penetrate the circular hole of the connecting plate to connect it to the tractor, so as to facilitate the transfer of the whole.

[0014] Furthermore, the other end of the air duct is connected and fixed to the two second air bag tubes through a hose, and the connecting rod and the main spray frame rotate synchronously by 90 degrees, so that the second air bag tube rotates 90 degrees, and the hose connecting between the air duct and the second air bag tube is bent, which can ensure the rotation of the second air bag tube while maintaining the air tightness of the connection between the air duct and the second air bag tube.

[0015] Furthermore, when the guide rail connecting frame is in the working position, the horizontal section of the guide rail connecting frame is located on the inner side of an adjacent strip-shaped through hole. When the partition is stored, the partition slides to one end of the guide rail through the sliding block, and the relative position of the partition and the guide rail connecting frame changes. The strip-shaped through hole can avoid interference between the guide rail connecting frame and the partition.

[0016] Beneficial effects of the present invention:

[0017] 1. By setting a partition between the main spray frame and the auxiliary spray frame, and connecting a frame to the bottom of the partition via a connecting spring, the running wheels at the bottom of the frame can be used to move in close contact with the ground, so that the gap between the bottom end of the frame and the ground can always be kept stable. This can prevent the spray liquid from the main spray frame and the auxiliary spray frame from mixing, and ensure the quality of corn and soybean strip composite planting. At the same time, when the height of the sprayed crops changes, the vertical height of the main spray frame and the auxiliary spray frame can be adjusted by the hydraulic lifting mechanism, and the vertical height of the auxiliary spray frame can be adjusted again by the linear guide rail. In the process of the auxiliary spray frame moving up, the cross bar drives the cover plate to move up. After the auxiliary spray frame moves up, the rubber roller curtain can be used to continuously isolate the liquid, making it suitable for plant protection operations in the corn and soybean strip composite planting mode with different cycles.

[0018] 2. The partition is rotatably connected to the hydraulic lifting mechanism through a connecting rod, and the partition is rotatable relative to the connecting rod. After use, the partition can be rotated to a position parallel to the second air bag tube, and then the guide rail connecting rod and the auxiliary spray rack are stored to a horizontal state in turn, and the stored partition is rotated through the connecting rod to make the two partitions parallel to each other. In this way, the connecting plate can be used to connect to the tractor, which facilitates the transfer of the entire unit and improves the overall transfer efficiency.

[0019] 3. Use the pulled-out rubber roller curtain to wrap the main spray rack, auxiliary spray rack and adjustment mechanism that are stored in a horizontal state, and use the fixing columns on one side of the cover to fix the partition and the frame. The pulled-out rubber roller curtain can protect the main spray rack, auxiliary spray rack and adjustment mechanism as a whole, prevent mud and other substances from clogging the water outlet of the spray rack, and ensure the normal use of the spray rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the main spray rack and auxiliary spray rack structure of the present invention;

[0023] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0024] Figure 4 This is a schematic diagram of the working state of the main spray rack and the auxiliary spray rack in the present invention;

[0025] Figure 5-6 It is a structural diagram of the connecting frame and the hydraulic lifting mechanism in the present invention;

[0026] Figure 7 It is a structural diagram of the main spray rack and the isolation mechanism in the present invention;

[0027] Figure 8 It is a schematic diagram of the structure of the air duct in the present invention;

[0028] Figure 9-10 It is a structural schematic diagram of the partition in the present invention;

[0029] Figure 11 It is a schematic structural diagram of the rotating shaft and the clockwork spring in the present invention;

[0030] Figure 12-13 It is a schematic diagram of the structure of the present invention in a storage state as a whole;

[0031] Figure 14 It is a schematic diagram of the positional relationship between the partition and the adjustment mechanism in the present invention.

[0032] In the figure: 10, connecting frame; 11, vertical rod; 12, connecting plate; 13, fixing screw 1; 20, hydraulic lifting mechanism; 21, first suspension frame; 22, connecting rod; 23, electric hydraulic push rod; 24, second suspension frame; 30, main spray rack; 40, auxiliary spray rack; 41, first air bag tube; 50, air duct; 51, branch pipe; 52, hose; 53, second air bag tube; 60, connecting rod; 70, partition; 71, strip through hole; 72, fixed Position hole one; 73, cover plate; 731, fixing column; 732, cross bar; 733, rubber roller shutter; 734, rotating shaft; 735, spring; 74, guide rail; 741, sliding block; 742, fixing screw two; 75, frame; 751, positioning hole two; 76, walking wheel; 77, isolation mechanism; 80, axial flow fan; 90, adjustment mechanism; 91, guide rail connecting frame; 92, linear guide rail; 93, rotating block; 94, support rod. DETAILED DESCRIPTION

[0033] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0034] See also Figure 1-14 As shown, a strip-shaped composite planting zone-controlled wind curtain spray boom truss includes a connecting frame 10 and a hydraulic lifting mechanism 20 fixed to one side of the connecting frame 10. An air duct 50 located directly above the hydraulic lifting mechanism 20 is fixed to one side of the top of the connecting frame 10. An axial flow fan 80 is fixed to the top of the connecting frame 10 corresponding to the position of the air duct 50. One end of the air duct 50 is connected to two branch pipes 51, and the other end is symmetrically connected to two second air bag tubes 53. Two main spray frames 30 are fixed to the bottom of the two second air bag tubes 53. Connecting rods 60 are rotatably connected to both sides of the hydraulic lifting mechanism 20. The main spray frames 30 are fixed to one side of the two connecting rods 60. The two second air bag tubes 53 are respectively fixed to the top of the main spray frames 30 and are connected to the interior thereof.

[0035] One end of the main spray frame 30 is rotatably connected to the adjustment mechanism 90, and a sub-spray frame 40 is provided on one side of the adjustment mechanism 90. The adjustment mechanism 90 is used to adjust the position of the sub-spray frame 40. A first air bag tube 41 that is connected to the inside of the branch pipe 51 is fixed on the sub-spray frame 40. Both the main spray frame 30 and the sub-spray frame 40 are fixed with a medicine inlet pipe for introducing the liquid medicine. When the device is in use, the main spray frame 30 and the sub-spray frame 40 use different liquid medicines to spray different crops at the same time, which can realize the strip-shaped composite planting of crops with liquid medicine. When the main spray frame 30 encounters changes in crop height while spraying liquid medicine, the spraying height of the main spray frame 30 is adjusted by the hydraulic lifting mechanism 20, and the wind from the axial flow fan 80 enters the first air bag tube 41 and the second air bag tube 53 through the air duct 50, which can make the liquid medicine of the main spray frame 30 and the sub-spray frame 40 spray out forcefully, preventing natural wind from changing the spraying direction of the liquid medicine.

[0036] Specifically, the adjustment mechanism 90 includes a guide rail connecting frame 91 rotatably connected to one end of the adjacent main spray frame 30, a linear guide rail 92 is fixed to one side of the guide rail connecting frame 91 of the L-shaped rod structure, and a rotating block 93 is fixed to one side of the linear guide rail 92, and a connecting ear rotatably connected to the rotating block 93 is fixed to one end of the auxiliary spray frame 40, and through holes are opened at corresponding positions of the rotating block 93 and the connecting ear, and a pin is movably inserted into the inner side of the through hole. When the device is running, when the height of the crops on the auxiliary spray frame 40 changes, the adjustment mechanism 90 needs to adjust the vertical height of the auxiliary spray frame 40 through the linear guide rail 92 to adapt to the crops of different heights of the auxiliary spray frame 40. When the device is stored, the auxiliary spray frame 40 can be changed from the working state to the storage state by removing the rotating block 93 and the pin of the through hole of the connecting ear. Then, by rotating the L-shaped guide rail connecting frame 91 of the adjustment mechanism 90 upward by 90 degrees, the external size of the device can be reduced, which is convenient for transportation and storage of the device.

[0037] Specifically, the end of the connecting rod 60 is provided with an isolation mechanism 77 for separating the main spray frame 30 and the auxiliary spray frame 40. The isolation mechanism 77 includes a partition 70 with cavities at the top and bottom ends, and a strip through hole 71 is provided in the middle of the partition. A guide rail 74 is fixed to one side of the partition 70, and a sliding block 741 is slidably engaged with the inner side of the guide rail 74. The connecting rod 60 is rotatably connected to the end of an adjacent sliding block 741. A frame 75 is provided inside the cavity at the bottom end of the partition 70. The frame 75 with a rounded bottom end is fixed with a walking wheel 76. A connecting spring is fixed between the top surface of the frame 75 and the inner top surface of the cavity at the bottom end of the partition 70. When the main spray frame 30 and the auxiliary spray frame 40 of the device use different liquids to spray different crops at the same time, by providing an isolation mechanism 77 between the main spray frame 30 and the auxiliary spray frame 40, natural wind can be prevented from changing the spraying direction of the liquid, thereby ensuring the correct spraying of the liquid. In addition, a frame 75 is connected to the bottom of the partition 70 through a connecting spring. The walking wheels 76 at the bottom of the frame 75 are used to move close to the ground, so that the gap between the bottom end of the frame 75 and the ground can always be kept stable. This can avoid the mixing of the sprayed liquid from the main spray frame 30 and the auxiliary spray frame 40, thereby ensuring the quality of the corn-soybean strip composite planting.

[0038] Specifically, a rubber roller curtain 733 is provided inside the cavity at the top of the partition 70, and a rotating shaft 734 is fixed to the bottom end of the rubber roller curtain 733. The end of the rotating shaft 734 is rotatably connected to the inner wall of the cavity at the top of the partition 70 through a spring spring 735. A cover plate 73 is fixed to the top of the rubber roller curtain 733, and the cover plate 73 covers the top of the partition 70. One side of the cover plate 73 is symmetrically connected to two cross bars 732 for rotation. Support rods 94 for overlapping with adjacent cross bars 732 are fixed on both sides of the rotating block 93. When the height changes, the vertical height of the auxiliary spray frame 40 is adjusted by the linear guide rail 92. At the same time, the auxiliary spray frame 40 drives the cover plate 73 to move upward through the cross bar 732 during the upward movement, and then drives the rubber roller curtain 733 to extend vertically. It can continue to isolate the liquid medicine after the auxiliary spray frame 40 moves upward, and when the auxiliary spray frame 40 moves downward, the cover plate 73 moves downward. At this time, the clockwork spring 735 connected to the rotating shaft 734 recovers its deformation, and the rubber roller curtain 733 can be reeled in, so that it is suitable for plant protection operations in corn and soybean strip composite planting modes with different cycles. When the device is stored, the main spray rack 30, the auxiliary spray rack 40 and the adjustment mechanism 90 stored in a horizontal state are wrapped with the pulled-out rubber roller curtain 733, and the partition 70 and the frame 75 are fixed with the fixing column 731 on one side of the cover plate 73. The pulled-out rubber roller curtain 733 can protect the main spray rack 30, the auxiliary spray rack 40 and the adjustment mechanism 90 as a whole, prevent mud and the like from clogging the water outlet of the spray rack, and ensure the normal use of the spray rack.

[0039] Specifically, two fixing columns 731 are symmetrically fixed on the other side of the cover plate 73, and two symmetrical positioning holes 72 are opened at the bottom of the partition 70 on the side below the guide rail 74. A plurality of positioning holes 751 are opened vertically at both ends of the frame 75 corresponding to the two positioning holes 72. When the device is stored, after the auxiliary spray rack 40 is returned to its original position, the rubber roller curtain 733 is pulled out through the cover plate 73 to wrap the auxiliary spray rack 40 and the main spray rack 30, and the fixing column 731 on one side of the cover plate 73 is inserted into the positioning hole 72 of the partition plate 70 and the positioning hole 751 of the frame 75. The partition 70 and the frame 75 are fixed with the fixing column 731, which meets the scenario where the height does not need to be adjusted up and down by the walking wheels after storage, and can also protect the service life of the connecting spring.

[0040] Specifically, the hydraulic lifting mechanism 20 includes a first suspension frame 21 and a second suspension frame 24. The first suspension frame 21 and the second suspension frame 24 are both frame structures with rectangular outer frames, and the four corners of the first suspension frame 21 and the second suspension frame 24 are rotatably connected by connecting rods 22. Among them, the two upper connecting rods 22 are rotatably connected to the end of the second suspension frame 24 close to the electric hydraulic push rod 23, and one end of the electric hydraulic push rod 23 is rotatably connected to the bottom of the first suspension frame 21. When the height of the crop sprayed by the main spray frame 30 changes, the output end of the electric hydraulic push rod 23 is adjusted to move, so that the vertical height of the second suspension frame 24 can be pushed through the connecting rod 22, and then the position of the main spray frame 30 is adjusted, so that the device can adjust the spraying height of the main spray frame 30 according to crops of different heights.

[0041] Specifically, a vertical rod 11 is vertically fixed in the middle of the connecting frame 10 of the rectangular frame structure, and two connecting plates 12 are rotatably connected to the middle of the vertical rod. A circular hole is opened at one end of each connecting plate 12, and a fixing screw 13 for passing through the circular hole is screwed on the connecting frame 10. When the device is stored for transportation, the fixing screw 13 for fixing the connecting plate 12 that is screwed on the connecting frame 10 is taken out, the connecting plate 12 is rotated 90 degrees, and the bolts are used to penetrate the circular holes of the connecting plate 12 to connect it to the tractor, so as to facilitate the transfer of the whole.

[0042] Specifically, the other end of the air duct 50 is connected and fixed to the two second air bag tubes 53 through a hose 52. The connecting rod 60 and the main spray rack 30 rotate synchronously by 90 degrees, so that the second air bag tubes 53 rotate 90 degrees. The hose 52 connecting between the air duct 50 and the second air bag tubes 53 is bent, which can ensure the rotation of the second air bag tubes 53 while maintaining the air tightness of the connection between the air duct 50 and the second air bag tubes 53.

[0043] Specifically, when the guide rail connecting frame 91 is in the working position, the horizontal section of the guide rail connecting frame 91 is located on the inner side of an adjacent strip-shaped through hole 71. When the partition 70 is stored, the partition 70 slides to one end of the guide rail 74 through the sliding block 741. The relative positions of the partition 70 and the guide rail connecting frame 91 change, and the strip-shaped through hole 71 can avoid interference between the guide rail connecting frame 91 and the partition 70.

[0044] In addition, one end of the guide rail 74 is an open end, and a fixing screw 2 742 is screwed into the open end. By tightening the fixing screw 2 742, the sliding block 741 can be prevented from being separated from the guide rail 74. When the sliding block 74 is worn out after long-term use, the fixing screw 2 742 can be removed and the sliding block 741 can be replaced. At the same time, the sliding block 741 and the connecting rod 60 are connected by bolts, so that the sliding block 741 can be rotated relative to the connecting rod 60 by loosening or tightening the bolts, or the sliding block 741 can be connected to the connecting rod 60 as a whole, keeping the relative positions of the two unchanged.

[0045] Working principle: When in use, first connect the connecting frame 10 to the tractor with bolts, then connect the main spray frame 30 and the auxiliary spray frame 40 to the medicine box through the medicine inlet pipe respectively. When in operation, turn on the axial flow fan 80 to spray the medicine from the main spray frame 30 and the auxiliary spray frame 40 with force by applying pressure to prevent the natural wind from changing the spraying direction of the medicine.

[0046] When walking in the field, due to the unevenness of the field, the partition 70 and the frame 75 are connected by a connecting spring, so that the walking wheels 76 at the bottom of the frame 75 can move in close contact with the ground during walking, thereby always keeping the gap between the bottom end of the frame 75 and the ground stable. This can prevent the spray liquids from the main spray rack 30 and the auxiliary spray rack 40 from mixing, thereby ensuring the quality of the corn and soybean strip composite planting;

[0047] When the height of the sprayed crop changes and there are two situations:

[0048] First, when the height of the crop sprayed by the main spraying frame 30 changes, the output end of the electric hydraulic push rod 23 is adjusted to move, thereby pushing the vertical height of the second suspension frame 24 through the connecting rod 22, thereby adjusting the position of the main spraying frame 30;

[0049] Second, when the height of the crops in the auxiliary spray frame 40 changes, a controller can be installed on the connecting frame 10 to control the start and stop of the linear guide rail 92, the axial flow fan 80 and the electric hydraulic push rod 23. The cross bar 732 can be swung out and overlapped on the support rod 94. The vertical height of the auxiliary spray frame 40 can be adjusted through the linear guide rail 92 to adapt to corn plants of different heights. At the same time, during the upward movement of the auxiliary spray frame 40, the cover plate 73 is driven upward by the cross bar 732, thereby driving the rubber rolling curtain 733 to extend vertically, so that the liquid can be continuously isolated after the auxiliary spray frame 40 moves upward, and when the auxiliary spray frame 40 moves downward, the cover plate 73 moves downward. At this time, the spring 735 connected to the rotating shaft 734 recovers its deformation, and the rubber rolling curtain 733 can be reeled in and recovered, thereby being suitable for plant protection operations in the corn and soybean strip composite planting mode with different cycles.

[0050] After the pesticide spraying is completed, the axial flow fan 80 is turned off, the medicine inlet pipes on the main spray frame 30 and the auxiliary spray frame 40 are disconnected from the external medicine box, and the partition 70 is pulled so that the sliding block 741 moves to its end along the guide rail 74. During this process, the relative position of the guide rail connecting frame 91 and the strip through hole 71 changes, and the guide rail connecting frame 91 moves to one end of the strip through hole 71. Then, the partition 70 is rotated to a position parallel to the second air bag tube 53, and then the L-shaped guide rail connecting frame 91 is rotated 90 degrees, the pin shaft is removed, and the auxiliary spray frame 40 is retracted in the horizontal direction. After the auxiliary spray frame 40 is returned to its original position, the rubber roller curtain 733 is pulled out through the cover plate 73 to wrap the auxiliary spray frame 40 and the main spray frame 30. The fixing column 731 on one side of the cover plate 73 is inserted into the positioning hole 1 72 of the partition 70 and the positioning hole 2 751 of the frame 75, and the partition 70 is fixed to the frame 75 using the fixing column 731. At this time, the pulled-out rubber roller curtain 733 can protect the main spray rack 30, the auxiliary spray rack 40 and the adjustment mechanism 90 as a whole. Finally, the retracted partition 70 is rotated 90 degrees through the connecting rod 60 again until the two partitions 70 are parallel to each other. At this time, the fixing screw 13 for fixing the connecting plate 12 that is screwed into the connecting frame 10 is taken out, the connecting plate 12 is rotated 90 degrees, and the bolts are inserted into the round holes of the connecting plate 12 to connect it to the tractor to facilitate the transfer of the whole.

[0051] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0052] The above contents are merely examples and explanations of the present invention. Those skilled in the art may make various modifications or additions to the described specific embodiments or replace them in similar ways. As long as they do not deviate from the invention or exceed the scope defined by the claims, they should all fall within the scope of protection of the present invention.

Claims

1. A strip-shaped composite planting and zone-controlled wind curtain spray boom truss, comprising a connecting frame (10) and a hydraulic lifting mechanism (20) fixed on one side of the connecting frame (10), characterized in that: An air duct (50) located directly above the hydraulic lifting mechanism (20) is fixed to one side of the top of the connecting frame (10), an axial flow fan (80) is fixed to the top of the connecting frame (10) at a position corresponding to the air duct (50), one end of the air duct (50) is connected to two branch pipes (51), and the other end is symmetrically connected to two second air bag tubes (53), and two main spray frames (30) are fixed to the bottom of the two second air bag tubes (53), both sides of the hydraulic lifting mechanism (20) are rotatably connected to connecting rods (60), and one side of the two connecting rods (60) is fixed to the main spray frame (30), and the two second air bag tubes (53) are respectively fixed to the top of the main spray frame (30) and are connected to the inside thereof; One end of the main spray frame (30) is rotatably connected to the adjustment mechanism (90), and an auxiliary spray frame (40) is provided on one side of the adjustment mechanism (90). The adjustment mechanism (90) is used to adjust the position of the auxiliary spray frame (40). A first air bag tube (41) communicating with the inside of the branch pipe (51) is fixed on the auxiliary spray frame (40). A medicine inlet pipe for introducing liquid medicine is fixed on both the main spray frame (30) and the auxiliary spray frame (40); An isolation mechanism (77) is provided at the end of the connecting rod (60), and the isolation mechanism (77) includes a partition (70) with cavities formed at both the top and bottom ends, and a frame (75) is provided inside the cavity at the bottom end of the partition (70); A rubber rolling curtain (733) is provided inside the cavity at the top of the partition (70), a rotating shaft (734) is fixed to the bottom end of the rubber rolling curtain (733), and the end of the rotating shaft (734) is rotatably connected to the inner wall of the cavity at the top of the partition (70) via a spring spring (735), a cover plate (73) is fixed to the top of the rubber rolling curtain (733), and the cover plate (73) covers the top of the partition (70), one side of the cover plate (73) is symmetrically rotatably connected to two cross bars (732), and support rods (94) for overlapping with adjacent cross bars (732) are fixed to both sides of the rotating block (93); Two fixing columns (731) are symmetrically fixed on the other side of the cover plate (73), and two symmetrical positioning holes (72) are opened at the bottom of the partition plate (70) on one side below the guide rail (74). A plurality of positioning holes (751) are opened vertically at both ends of the frame (75) at the positions corresponding to the two positioning holes (72).

2. The strip-shaped composite planting zone-controlled wind curtain spray boom truss according to claim 1 is characterized in that: The adjustment mechanism (90) includes a guide rail connecting frame (91) rotatably connected to one end of the adjacent main spray frame (30), a linear guide rail (92) is fixed on one side of the guide rail connecting frame (91) of an L-shaped rod structure, and a rotating block (93) is fixed on one side of the linear guide rail (92), and a connecting ear rotatably connected to the rotating block (93) is fixed on one end of the auxiliary spray frame (40), and through holes are opened at corresponding positions of the rotating block (93) and the connecting ear, and a pin is movably inserted into the inner side of the through hole.

3. The strip-shaped composite planting zone-controlled wind curtain spray boom truss according to claim 1 is characterized in that: A strip-shaped through hole (71) is provided in the middle of the partition (70), a guide rail (74) is fixed on one side of the partition (70), and a sliding block (741) is slidably engaged on the inner side of the guide rail (74), the connecting rod (60) is rotatably connected to the end of an adjacent sliding block (741), and a running wheel (76) is fixed on the frame (75) with a rounded bottom end, and a connecting spring is fixed between the top surface of the frame (75) and the inner top surface of the cavity at the bottom end of the partition (70).

4. The strip-shaped composite planting zone-controlled wind curtain spray boom truss according to claim 1 is characterized in that: The hydraulic lifting mechanism (20) includes a first suspension frame (21) and a second suspension frame (24), wherein the first suspension frame (21) and the second suspension frame (24) are both frame structures with rectangular outer frames, and the four corners of the first suspension frame (21) and the second suspension frame (24) are rotatably connected through connecting rods (22), wherein one end of the two connecting rods (22) located above and close to the second suspension frame (24) are rotatably connected to an electric hydraulic push rod (23), and one end of the electric hydraulic push rod (23) is rotatably connected to the bottom of the first suspension frame (21).

5. The strip-shaped composite planting zone-controlled wind curtain spray boom truss according to claim 1 is characterized in that: A vertical rod (11) is fixed vertically in the middle of the connecting frame (10) of the rectangular frame structure, and the middle of the vertical rod (11) is rotatably connected to two connecting plates (12), one end of each of the two connecting plates (12) is provided with a circular hole, and a fixing screw (13) for passing through the circular hole is screwed on the connecting frame (10).

6. The strip-shaped composite planting zone-controlled wind curtain spray boom truss according to claim 1 is characterized in that: The other end of the air duct (50) is connected and fixed to the two second air bag tubes (53) via a hose (52).

7. The strip-shaped composite planting zone-controlled wind curtain spray boom truss according to claim 2 is characterized in that: When the guide rail connecting frame (91) is located at the working position, the horizontal section of the guide rail connecting frame (91) is located on the inner side of an adjacent strip-shaped through hole (71).

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