Unmanned aerial vehicle for forest pest control

Abstract

The application discloses a forest pest control unmanned aerial vehicle and relates to the technical field of forest pest control unmanned aerial vehicles.The unmanned aerial vehicle is provided with U-shaped connecting frames longitudinally fixed to both sides of the lower end of the unmanned aerial vehicle, and the lower end of the unmanned aerial vehicle is provided with a buffer assembly, a dropping assembly and a spraying assembly.The buffer spring and the bearing box are matched to facilitate the landing buffer of the unmanned aerial vehicle, and the unmanned aerial vehicle is prevented from being damaged due to its own weight during landing.The stirring blade and the anti-interference plate are matched to facilitate the stirring and mixing of liquid during the flight of the unmanned aerial vehicle to the forest, and the liquid is prevented from being stratified.The cooperation of the T-shaped material guide pipe and the spray head facilitates the expansion of the spraying range.The cooperation of the spiral blade and the filter facilitates the continuous stirring of the powder, and the agglomeration of the powder is prevented from affecting normal spraying.The powder is sprayed in a large range through the powder distributor and the trapezoidal material guide pipe.The device improves the work efficiency, reduces the labor consumption and prevents the unmanned aerial vehicle from being damaged.

Description

Technical Field

[0001] This invention relates to the field of drone technology for the prevention and control of forest pests and diseases, and particularly to drones for the prevention and control of forest pests and diseases. Background Technology

[0002] In recent years, drones used for forest pest and disease control have made breakthroughs in technology and application, bringing many benefits to forest protection. Current drones for forest pest and disease control deliver powdered and liquid pesticides into the forest and then spray them. However, before takeoff, workers need to mix various powdered and liquid pesticides separately and then load them into the drone's suspension system. When the drone flies for extended periods, the mixed liquid pesticides may separate due to their weight, reducing their effectiveness. Furthermore, the powdered pesticides may clump together due to their weight, potentially causing clumps to become stuck. Therefore, improvements are needed to address these issues. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drone for the prevention and control of forest pests and diseases.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a drone for forest pest and disease control, comprising a drone, wherein U-shaped connecting frames are longitudinally fixed to both sides of the lower end of the drone, a positioning seat and an arc-shaped positioning plate are sleeved on the outer side of the U-shaped connecting frame, and the upper end of the arc-shaped positioning plate is bolted to the positioning seat, and threaded rods are provided laterally on the opposite surfaces of the arc-shaped positioning plates on both sides, the distal ends of the threaded rods on both sides are vertically hinged to the positioning seat, and rotating tubes are sleeved on the outer sides of the opposite ends of the threaded rods on both sides, wherein the rotating tubes have internally threaded pipes at both ends, and the rotating tubes are threadedly connected to the threaded rods on both sides, and the lower end of the drone is provided with a buffer assembly, a delivery assembly and a spraying assembly.

[0005] Preferably, the buffer assembly includes a carrier box located at the lower end of the drone. Positioning seats are rotatably connected to both ends of the carrier box, and connecting plates are fixed to both ends of the carrier box. A support plate is longitudinally provided at the lower end of the connecting plate. A guide rod is vertically provided at the front and rear ends of the top of the support plate. The upper end of the guide rod passes through the connecting plate, and a circular stop is fixed to the top surface of the guide rod. A buffer spring is vertically provided between the front and rear ends of the support plate and the connecting plate, and the buffer spring is sleeved on the guide rod. Universal wheels are installed at the front and rear ends of the bottom of the support plate.

[0006] Preferably, the feeding component includes a feed inlet on the top front surface of the carrier box, a cover plate on the feed inlet, the rear end of the cover plate being hinged to the top surface of the carrier box, and the carrier box having front, middle and rear movable cavities. The front movable cavity has multiple equidistant rotating rods arranged longitudinally, and each rotating rod has a spiral blade fixed to its outer side. The rear end of the middle rotating rod passes through the middle movable cavity and is fixed to a driven helical gear. The lower end of the driven helical gear has a driving helical gear, and the driving helical gear and the driven helical gear are meshed. The lower end of the driving helical gear is fixed to a first servo motor, which is installed in the middle movable cavity.

[0007] Preferably, a first drive gear is fixedly connected to the front end of the driven helical gear, and connecting wheels are meshed on both sides of the first drive gear. The connecting wheels on both sides are meshed with a first driven gear at their far ends. The first driven gear is fixedly connected to the rotating rods on both sides. Push blocks are fixedly connected to the front ends of the rotating rods on both sides, and the push blocks on both sides face opposite directions. A filter screen is provided at the lower end of the rotating rod. A return spring is vertically fixed to the bottom surface of each of the four ends of the filter screen. The lower end of the return spring is installed on the four ends of the front movable cavity.

[0008] Preferably, a rectangular funnel is fixed to the bottom surface of the filter screen, and a material guide port is provided in the middle of the bottom surface of the front movable cavity. The material guide port is located at the lower end of the rectangular funnel, and a circular baffle is provided inside the material guide port. A third servo motor is fixed to the front end of the circular baffle and is installed in the front movable cavity. A trapezoidal material guide pipe is fixed to the lower end of the material guide port, and a powder dispersing machine is provided inside the trapezoidal material guide pipe. The powder dispersing machine is located at the lower end of the circular baffle.

[0009] Preferably, the spraying assembly includes a second servo motor installed in the central movable cavity. The second servo motor extends through the bottom surface of the central movable cavity. A belt is sleeved on the lower end of the second servo motor, and the other end of the belt is sleeved on a circular rotating block. The upper end of the circular rotating block extends through the rear movable cavity, and a stirring blade is installed on the upper end of the circular rotating block. A second drive gear is fixedly connected to the outer side of the lower end of the circular rotating block. Multiple equidistant transition wheels and a second driven gear are installed on both sides of the second drive gear. The second drive gear and the transition wheels are meshed, and the transition wheels and the second driven gear are meshed.

[0010] Preferably, two mounting slots are provided on both sides of the rear movable cavity, and anti-interference plates are installed laterally in the mounting slots. Multiple anti-interference plates are longitudinally fixed to the front and rear anti-interference plates, and multiple equally spaced anti-interference plates are provided on the anti-interference plates. The anti-interference plates are placed on the upper end of the stirring blade.

[0011] Preferably, air inlets are provided on both upper ends of the front end of the rear movable cavity, and air guide pipes are fixedly connected to the front ends of the air inlets. The lower ends of the air guide pipes are mounted on air pumps, and the air pumps are mounted on the bottom surfaces of both sides of the middle movable cavity. Air inlets are provided on both upper ends of the middle movable cavity, and liquid guide ports are provided on both upper ends of the rear movable cavity. Liquid guide pipes are fixedly connected to the outer sides of the liquid guide ports, and the other end of the liquid guide pipes is mounted on the material box. The material box is mounted on the bottom surface of the connecting plate.

[0012] Preferably, an electronic ball valve is installed at the lower center of the rear of the carrier box, and a T-shaped guide pipe is horizontally fixed to the lower end of the electronic ball valve. Multiple equally spaced nozzles are horizontally installed on the bottom surface of the T-shaped guide pipe.

[0013] Preferably, inverted L-shaped baffles are installed on the front and rear ends of the outer sides of the connecting plates on both sides. An air cylinder is installed on the inner top surface of the inverted L-shaped baffle. The air cylinder is placed directly above the circular block, and the air outlet of the air cylinder is connected to a conduit. The other end of the conduit is installed on a connecting valve, and the connecting valve is installed on both sides of the front end of the bearing box.

[0014] Compared with existing technologies, the beneficial effects of this invention are as follows: The combination of a buffer spring and a carrying box facilitates the landing cushioning of the drone, preventing damage due to its own weight during landing; the combination of stirring blades and anti-disruption plates facilitates the mixing of liquids by the drone during its flight through the forest, preventing liquid stratification and improving insecticidal efficiency; the improved combination of the T-shaped guide pipe and nozzles facilitates expanding the spraying range and improving work efficiency; the combination of the guide rod and air cylinder allows the guide rod to squeeze the air cylinder upon landing, thereby blowing away residual powder in the front movable cavity of the carrying box; the combination of the spiral blades and filter screen facilitates continuous powder mixing, preventing powder lumps; the powder spreader and trapezoidal guide pipe facilitate wide-area powder spraying, improving work efficiency; this device improves work efficiency, reduces manpower consumption, and prevents damage to the drone. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a rear-view perspective three-dimensional structural diagram of the suspension device of the present invention; Figure 3 This is a front cross-sectional three-dimensional structural diagram of the suspension device of the present invention; Figure 4 This is a rear cross-sectional three-dimensional structural diagram of the suspension device of the present invention; Figure 5 This is a three-dimensional structural diagram of the rear cross-sectional view of the suspension device of the present invention; Figure 6 This is a front top view cross-sectional three-dimensional structural diagram of the suspension device of the present invention; Figure 7 This is a top-view cross-sectional three-dimensional structural diagram of the suspension device of the present invention; Figure 8 This is a bottom-view perspective view of the suspension device of the present invention. Figure 9 For the present invention Figure 3 Enlarged schematic diagram of the structure at part A in the middle; In the diagram, the following components are listed: 1. UAV; 2. Positioning seat; 3. Arc-shaped positioning plate; 4. Lead screw; 5. Rotary tube; 6. Carrier box; 7. Connecting plate; 8. Support plate; 9. Guide rod; 10. Circular stop; 11. Buffer spring; 12. Universal wheel; 13. Cover plate; 14. Rotating rod; 15. Spiral blade; 16. Driven helical gear; 17. Driving helical gear; 18. First driving gear; 19. First driven gear; 20. First servo motor; 21. Second servo motor; 22. Belt; 23. 24. Second driven gear; 25. Stirring blade; 26. Air pump; 27. Air guide pipe; 28. Anti-disruption plate; 29. ​​Material box; 30. Electronic ball valve; 31. T-shaped material guide pipe; 32. Nozzle; 33. Filter screen; 34. Return spring; 35. Rectangular funnel; 36. Third servo motor; 37. Circular baffle; 38. Powder scatterer; 39. Trapezoidal material guide pipe; 40. Push block; 41. Inverted L-shaped baffle; 42. Air cylinder; 43. Conduit; 44. Connecting valve. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0017] Example: See Figures 1 to 9A drone for forest pest and disease control includes a drone 1, which facilitates the connection of certain components. U-shaped connecting frames are longitudinally fixed to both sides of the lower end of the drone 1. Positioning seats 2 and arc-shaped positioning plates 3 are sleeved on the outer sides of the U-shaped connecting frames, allowing the device to be suspended on the drone 1. The upper end of the arc-shaped positioning plate 3 is bolted to the positioning seat 2. Screw rods 4 are laterally provided on opposite sides of the arc-shaped positioning plates 3. The distal ends of the screw rods 4 are vertically hinged to the positioning seat 2, and rotating tubes 5 are sleeved on the outer sides of the opposite ends of the screw rods 4. The screw rods 4 and rotating tubes 5 allow for adjustment based on the distance between the U-shaped connecting frames on both sides of the drone 1. Internally threaded pipes are opened at both ends of the rotating tube 5, and the rotating tube 5 is threadedly connected to the screw rods 4 on both sides. A buffer assembly, a delivery assembly, and a spraying assembly are provided at the lower end of the drone 1. The buffer assembly includes a carrying box located at the lower end of the drone 1. 6. The carrier box 6 facilitates the carrying of some components; both ends of the carrier box 6 are rotatably connected to positioning seats 2, and both ends of the carrier box 6 are fixedly connected to connecting plates 7, which facilitates the connection of some buffer components; the lower end of the connecting plate 7 is provided with a support plate 8, which facilitates the installation of guide rods 9 and buffer springs 11; the front and rear ends of the top of the support plate 8 are provided with guide rods 9, which prevent the buffer springs 11 from falling off; the upper end of the guide rod 9 passes through the connecting plate 7, and a circular stop block 10 is fixedly connected to the top surface of the guide rod 9, which prevents the guide rod 9 from falling off; and a buffer spring 11 is provided vertically between the front and rear ends of the support plate 8 and the connecting plate 7, which facilitates the buffering of the UAV 1 during descent; the buffer spring 11 is sleeved on the guide rod 9, and universal wheels 12 are installed at the front and rear ends of the bottom of the support plate 8, which facilitates the take-off and landing of the UAV 1.

[0018] In this invention, the dispensing component includes a feed inlet located on the top surface of the front end of the carrier box 6, with a cover plate 13 on the feed inlet to prevent powder from flying out. The rear end of the cover plate 13 is hinged to the top surface of the carrier box 6, and the carrier box 6 has front, middle, and rear movable cavities. The front movable cavity has multiple equidistant rotating rods 14 arranged longitudinally, which facilitate the rotation of the spiral blades 15. Spiral blades 15 are fixed to the outer sides of each rotating rod 14, which facilitate the crushing of larger powder particles. The rear end of the middle rotating rod 14 passes through the middle movable cavity and is fixed to the driven helical gear 16, which facilitates the rotation of the rotating rod 14 and the first drive gear 18. A driving helical gear 17 is provided at the lower end of wheel 16, which facilitates the rotation of driven helical gear 16. The driving helical gear 17 and driven helical gear 16 are meshed and driven, and the lower end of the driving helical gear 17 is fixed to the first servo motor 20, which facilitates the rotation of driving helical gear 17. The first servo motor 20 is installed in the movable cavity in the middle. A first driving gear 18 is fixed to the front end of driven helical gear 16, which facilitates the rotation of connecting wheel. Connecting wheels are meshed on both sides of the first driving gear 18, which facilitates the rotation of first driven gear 19. The connecting wheels on both sides mesh with the far ends of the first driven gear 19. Gear 19 facilitates the rotation of rotating rod 14 via the first driven gear 19; the first driven gear 19 is fixedly connected to the rotating rods 14 on both sides, and push blocks 40 are fixedly connected to the front ends of the rotating rods 14 on both sides, which facilitates the shaking of filter screen 33; the push blocks 40 on both sides face opposite directions, and filter screen 33 is provided at the lower end of rotating rod 14, which facilitates the filtration of mixed powder; return springs 34 are vertically fixedly connected to the bottom surface of each of the four ends of filter screen 33, which facilitates the shaking of filter screen 33; the lower ends of return springs 34 are installed on the four ends of the front movable cavity; a rectangular funnel 35 is fixedly connected to the bottom surface of filter screen 33, which facilitates the collection of filtered powder. The powder is fed into the front movable cavity. A guide port is provided in the middle of the bottom surface of the front movable cavity. The guide port is located at the lower end of the rectangular funnel 35, and a circular baffle 37 is provided inside the guide port. The circular baffle 37 facilitates the control of powder feeding. A third servo motor 36 is fixedly connected to the front end of the circular baffle 37, which facilitates the rotation of the circular baffle 37. The third servo motor 36 is installed in the front movable cavity, and a trapezoidal guide tube 39 is fixedly connected to the lower end of the guide port, which facilitates the expansion of the powder feeding range. A powder dispersing machine 38 is provided inside the trapezoidal guide tube 39, which facilitates the dispersing of the fed powder. The powder dispersing machine 38 is located at the lower end of the circular baffle 37.

[0019] In this invention, the spraying assembly includes a second servo motor 21 installed in the central movable cavity, which facilitates the rotation of the belt 22. The second servo motor 21 extends through the bottom surface of the central movable cavity, and the lower end of the second servo motor 21 is fitted with the belt 22, which facilitates the rotation of the circular rotating block. The other end of the belt 22 is fitted onto the circular rotating block, which facilitates the installation of the stirring blade 25. The upper end of the circular rotating block extends through the rear movable cavity, and the upper end of the circular rotating block is fitted with the stirring blade 25, which facilitates the mixing of the two liquids. A second drive gear 23 is fixedly connected to the outer side of the lower end of the circular rotating block, which facilitates the rotation of the transition wheel. Both sides of the second drive gear 23 are... Multiple equidistant transition wheels and a second driven gear 24 are installed, facilitating the rotation of the second driven gear 24 via the transition wheels; the second drive gear 23 meshes with the transition wheels, and the transition wheels mesh with the second driven gear 24, facilitating the rotation of the circular rotating block via the second driven gear 24; two mounting slots are opened on both sides of the rear movable cavity, and anti-disruption plates 28 are horizontally installed in the mounting slots to prevent liquid splashing; multiple equidistant anti-disruption plates 28 are longitudinally fixed to both the front and rear anti-disruption plates 28, and multiple equidistant holes are opened on each of the anti-disruption plates 28, which are positioned on the upper end of the stirring blade 25; air vents are opened on the upper ends of both sides of the front end of the rear movable cavity, and air vent pipes 27 are fixedly connected to the front ends of the air vents, with the lower ends of the air vent pipes 27 mounted on... Mounted on the air pump 26, the air pump 26 facilitates pressurization of the rear movable chamber, enabling liquid discharge. The air pump 26 is installed on the bottom surfaces of both sides of the middle movable chamber, with air inlets at the upper ends of both sides of the middle movable chamber and liquid guide ports at the upper ends of both sides of the rear movable chamber. Liquid guide pipes are fixed to the outside of the liquid guide ports, and the other end of the liquid guide pipes is installed on the material tank 29, which facilitates liquid collection. The material tank 29 is installed on the bottom surface of the connecting plate 7. An electronic ball valve 30 is installed in the middle of the lower rear end of the material tank 6, which facilitates control of liquid flow. A T-shaped guide pipe 31 is horizontally fixed to the lower end of the electronic ball valve 30, which facilitates expanding the spraying range. Multiple equidistant grooves are horizontally installed on the bottom surface of the T-shaped guide pipe 31. The nozzle 32 facilitates the spraying of liquid; inverted L-shaped baffles 41 are installed on the front and rear ends of the outer sides of the connecting plates 7 on both sides, which facilitate the installation of the air cylinder 42; the air cylinder 42 is installed on the inner top surface of the inverted L-shaped baffle 41. The air cylinder 42 is a foot-operated air pump structure that can automatically rebound and self-inflate, which facilitates the blowing away of powder in the front active cavity; the air cylinder 42 is placed directly above the circular block 10, and the air outlet of the air cylinder 42 is connected to a conduit 43, which facilitates the air cylinder 42 to blow air into the front active cavity; the other end of the conduit 43 is installed on the connecting valve 44, which prevents powder from falling back into the air cylinder 42; the connecting valve 44 is installed on both sides of the front end of the carrier box 6.

[0020] Working principle: In this embodiment, the present invention also proposes a method for using drones for forest pest and disease control, including the following steps: Step 1: First, connect the first servo motor 20, the second servo motor 21, and the third servo motor 36 with wires; then pour the powdered insecticide to be mixed into the front movable cavity, and pour the liquid insecticide to be mixed into the two side loading boxes 29; then start the first servo motor 20 and the second servo motor 21, and then start the drone 1 to carry the device into the air, where the powder and liquid are stirred and mixed in the air.

[0021] Step two: After the first servo motor 20 starts, it rotates the upper drive helical gear 17. The drive helical gear 17 meshes with the driven helical gear 16, thus rotating the driven helical gear 16. The driven helical gear 16 is fixed to the rear end of the driven helical gear 16, rotating the first drive gear 18. Connecting wheels mesh with both sides of the first drive gear 18, rotating the connecting wheels. The connecting wheels mesh with the first driven gear 19, rotating the first driven gear 19, which in turn rotates the front rotating rod 14. The rotating rod 14 causes the spiral blades 15 on the outside of the rotating rod 14 to disperse and mix the powder to be mixed. When the rotating rods 14 on both sides rotate, the push block 40 at the front end also rotates, which pushes the filter screen 33 at the lower end downward, and then pushes the filter screen 33 upward through the return spring 34. The filter screen 33 then shakes, and the return spring 34 switches back and forth between the compressed state and the extended state. The mixed powder is filtered through the filter screen 33, so that the larger powder blocks are left at the upper end, and the smaller powder particles are filtered into the rectangular funnel 35. The rectangular funnel 35 guides the powder to the feed port at the lower end.

[0022] Step 3: When the mixed powder is placed at the upper end of the feed inlet, the third servo motor 36 is started; the third servo motor 36 rotates the circular baffle 37, so that the circular baffle 37 changes from a horizontal state to a vertical state, thereby allowing the powdered insecticide to be discharged; when the powdered insecticide is discharged downward, it will be dispersed by the powder dispersing machine 38, so that it can be discharged from the trapezoidal feed pipe 39.

[0023] Step four: When the second servo motor 21 is started, the belt 22 is rotated by the second servo motor 21, which in turn rotates the circular rotating block, thereby stirring the upper stirring blades 25. The stirring blades 25 stir the liquid to be mixed, and the upper anti-splash plate 28 prevents the liquid from splashing. When the circular rotating block rotates, the second drive gear 23 is rotated, which in turn rotates the transition wheel, which in turn rotates the second driven gear 24, thereby rotating the stirring blades 25 on both sides. After the liquid in the rear active chamber is mixed, the air pump 26 is started, and the air is pressurized into the rear active chamber through the air guide pipe 27. The liquid is then controlled to flow out through the electronic ball valve 30, and the spraying range is expanded through the T-shaped guide pipe 31.

[0024] Step 5: When the insecticide application and spraying are completed, control the drone 1 to return to land. When landing, the caster wheel 12 will first contact the bottom surface. The device's own weight and the buffer spring 11 will compress the drone 1, thus preventing accidents when it lands. When the drone 1 lands, the guide rod 9 will rise, thereby raising the circular stop 10 and pushing the upper air cylinder 42 upward. Since there is gas inside the air cylinder 42, it can provide secondary cushioning for the guide rod 9. Then, the air in the air cylinder 42 will be blown into the front movable cavity of the carrier box 6 through the conduit 43, thereby cleaning the residual powder on the spiral blade 15 and the filter screen 33.

[0025] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A drone for forest pest and disease control, including a drone (1), characterized in that: The UAV (1) has U-shaped connecting frames fixed longitudinally on both sides of its lower end. The U-shaped connecting frames are fitted with positioning seats (2) and arc-shaped positioning plates (3) on their outer sides. The upper end of the arc-shaped positioning plates (3) is bolted to the positioning seats (2). The opposite sides of the arc-shaped positioning plates (3) are provided with threaded rods (4) laterally. The far ends of the threaded rods (4) on both sides are vertically hinged to the positioning seats (2). The opposite ends of the threaded rods (4) on both sides are fitted with rotating tubes (5). The rotating tubes (5) have internal threaded pipes at both ends. The rotating tubes (5) are threaded to the threaded rods (4) on both sides. The UAV (1) has a buffer assembly, a delivery assembly, and a spraying assembly at its lower end. The feeding component includes a feed port on the top surface of the front end of the carrier box (6), a cover plate (13) on the feed port, the rear end of the cover plate (13) is hinged to the top surface of the carrier box (6), and the carrier box (6) has a front, middle and rear movable cavity. The front movable cavity has a plurality of equidistant rotating rods (14) in the longitudinal direction. The outer side of each rotating rod (14) is fixed with a spiral blade (15). The rear end of the middle rotating rod (14) passes through the middle movable cavity and is fixed to the driven helical gear (16). The lower end of the driven helical gear (16) is provided with a driving helical gear (17). The driving helical gear (17) and the driven helical gear (16) are meshed and driven. The lower end of the driving helical gear (17) is fixed to the first servo motor (20). The first servo motor (20) is installed in the middle movable cavity. The driven helical gear (16) is fixedly connected to the front end of the first drive gear (18). The first drive gear (18) is connected to the connecting wheels on both sides. The connecting wheels on both sides are connected to the first driven gear (19) at their far ends. The first driven gear (19) is fixedly connected to the rotating rods (14) on both sides. The front ends of the rotating rods (14) on both sides are fixedly connected to the push blocks (40). The push blocks (40) on both sides face opposite directions. The lower end of the rotating rod (14) is provided with a filter screen (33). The bottom surface of the filter screen (33) is vertically fixedly connected to the four ends of the bottom surface. The lower end of the return spring (34) is installed on the four ends of the front movable cavity.

2. The unmanned aerial vehicle (UAV) for forest pest and disease control according to claim 1, characterized in that: The buffer assembly includes a carrier box (6) located at the lower end of the UAV (1). The carrier box (6) is rotatably connected to two ends at the middle, and a connecting plate (7) is fixedly connected to both ends of the carrier box (6). A support plate (8) is longitudinally provided at the lower end of the connecting plate (7). A guide rod (9) is vertically provided at the front and rear ends of the top of the support plate (8). The upper end of the guide rod (9) passes through the connecting plate (7), and a circular stop block (10) is fixedly connected to the top surface of the guide rod (9). A buffer spring (11) is vertically provided between the front and rear ends of the support plate (8) and the connecting plate (7). The buffer spring (11) is sleeved on the guide rod (9), and a caster wheel (12) is installed at the front and rear ends of the bottom of the support plate (8).

3. The unmanned aerial vehicle (UAV) for forest pest and disease control according to claim 1, characterized in that: The spraying assembly includes a second servo motor (21) installed in the central movable cavity. The second servo motor (21) passes through the bottom surface of the central movable cavity. A belt (22) is sleeved on the lower end of the second servo motor (21). The other end of the belt (22) is sleeved on a circular rotating block. The upper end of the circular rotating block passes through the rear movable cavity. A stirring blade (25) is installed on the upper end of the circular rotating block. A second drive gear (23) is fixed to the outer side of the lower end of the circular rotating block. Multiple equidistant transition wheels and a second driven gear (24) are installed on both sides of the second drive gear (23). The second drive gear (23) and the transition wheels are meshed. The transition wheels and the second driven gear (24) are meshed.

4. The unmanned aerial vehicle for forest pest and disease control according to claim 3, characterized in that: Two mounting slots are provided on both sides of the rear end movable cavity. An anti-interference plate (28) is installed horizontally in the mounting slot. Multiple anti-interference plates (28) are longitudinally fixed on the front and rear ends of the anti-interference plate (28). Multiple holes are provided on the anti-interference plate (28). The anti-interference plate (28) is placed on the upper end of the stirring blade (25).

5. The unmanned aerial vehicle for forest pest and disease control according to claim 2, characterized in that: Air inlets are provided on both upper ends of the front end of the rear active cavity. Air pipes (27) are fixedly connected to the front end of the air inlets. The lower end of the air pipes (27) is installed on the air pump (26). The air pump (26) is installed on the bottom surface of both sides of the middle active cavity. Air inlets are provided on both upper ends of the middle active cavity. Liquid inlets are provided on both upper ends of the rear active cavity. Liquid pipes are fixedly connected to the outside of the liquid inlets. The other end of the liquid pipes is installed on the material box (29). The material box (29) is installed on the bottom surface of the connecting plate (7).

6. The unmanned aerial vehicle for forest pest and disease control according to claim 2, characterized in that: An electronic ball valve (30) is installed at the lower middle of the rear of the carrier box (6). A T-shaped guide pipe (31) is horizontally fixed to the lower end of the electronic ball valve (30). Multiple equally spaced nozzles (32) are horizontally installed on the bottom surface of the T-shaped guide pipe (31).

7. The unmanned aerial vehicle for forest pest and disease control according to claim 2, characterized in that: Both sides of the connecting plate (7) are equipped with inverted L-shaped baffles (41) at the front and rear ends. An air cylinder (42) is installed on the inner top surface of the inverted L-shaped baffle (41). The air cylinder (42) is placed directly above the circular block (10). The air outlet of the air cylinder (42) is connected to a conduit (43). The other end of the conduit (43) is installed on a connecting valve (44). The connecting valve (44) is installed on both sides of the front end of the carrier box (6).

8. The unmanned aerial vehicle for forest pest and disease control according to claim 1, characterized in that: A rectangular funnel (35) is fixed to the bottom surface of the filter screen (33). A guide port is opened in the middle of the bottom surface of the front movable cavity. The guide port is located at the lower end of the rectangular funnel (35). A circular baffle (37) is provided in the guide port. A third servo motor (36) is fixed to the front end of the circular baffle (37). The third servo motor (36) is installed in the front movable cavity. A trapezoidal guide pipe (39) is fixed to the lower end of the guide port. A powder scattering machine (38) is provided inside the trapezoidal guide pipe (39). The powder scattering machine (38) is located at the lower end of the circular baffle (37).

Images