An electrostatic spraying device mounted on a plant protection unmanned aerial vehicle

Abstract

The present application relates to a kind of electrostatic spraying device of planting protection unmanned plane, including liquid storage tank, the lower surface of liquid storage tank is fixedly provided with transfer tank, the end of transfer tank is fixedly connected with spray tank, the lower surface of spray tank is fixedly provided with four hoses, the end of four hoses is connected with spray head, the surface of spray head is fixedly provided with first gear shaft, and the end of first gear shaft is fixedly provided with first gear, the side wall of liquid storage tank is fixedly provided with drive assembly, drive assembly is used to drive connecting rod to move.The present application is provided with drive assembly, and the drive assembly drives the top rod to move up and down, to complete the effect of pressurizing inside spray tank, to complete the atomization effect of the medicine water of spraying, and drive assembly drives first rack reciprocating motion, and first rack drives first gear periodic swing, to achieve the purpose of periodically controlling the angle of spray head, to improve the maximum range that electrostatic spraying device can spray.

Description

Technical Field

[0001] This invention relates to the field of electrostatic spraying for pest and disease control, specifically to an electrostatic spraying device mounted on an agricultural drone. Background Technology

[0002] For a long time, the prevention and control of agricultural pests and diseases has been a key aspect of agricultural production, and how to reduce the impact of pesticide residues on crops and environmental pollution has always been a matter of great concern. In recent years, my country's agricultural aerial spraying technology has developed rapidly, becoming a powerful tool in the field of agricultural plant protection and a strong means to reduce pesticide use, lower pesticide residues, and improve pesticide efficacy.

[0003] Aviation electrostatic spraying equipment utilizes charged droplets (which possess the characteristics of directional movement towards ground vegetation and active affinity adsorption to the target plant surface). During aircraft spraying, the droplets undergo rapid directional deposition along electric field lines, significantly reducing droplet drift loss. Therefore, compared to non-electrostatic spraying and conventional aviation spraying, aviation electrostatic spraying equipment offers significantly improved effectiveness, reducing pesticide usage and enhancing spraying efficiency.

[0004] Existing electrostatic spraying systems have been found to miss many areas in farmland during use. Further research revealed that the nozzles in these systems are mostly fixed, making it impossible to adjust the spray direction during operation. They can only spray pesticides in a fixed direction. When there are obstacles such as power lines or tree branches above the farmland, agricultural drones cannot fly overhead, thus preventing these areas from being sprayed and affecting subsequent pest and disease control. Summary of the Invention

[0005] The purpose of this invention is to provide an electrostatic spraying device mounted on an agricultural drone, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an electrostatic spraying device mounted on an agricultural drone, comprising a liquid storage tank, a transfer box fixedly disposed on the lower surface of the liquid storage tank, a spraying box fixedly connected to the end of the transfer box, four hoses fixedly disposed on the lower surface of the spraying box, nozzles connected to the ends of the four hoses, a first gear shaft transversely disposed through the surface of the nozzle, a first gear fixedly disposed at the end of the first gear shaft, and the first gear shaft movably disposed on the surface of the spraying box, and a first rack meshing with the surface of the first gear;

[0007] A first slider is fixedly mounted at the end of the first rack, a fixed rod is fixedly mounted on the surface of the first slider, a second slider is fixedly mounted at the end of the fixed rod, a swing arm is movably mounted on the surface of the second slider, a connecting rod is movably mounted at the end of the swing arm, and a driving assembly is fixedly mounted on the side wall of the liquid storage tank. The driving assembly is used to drive the connecting rod to move.

[0008] In a preferred embodiment of the present invention, a first slide rail is fixedly provided on the surface of the spray box, a first slider is slidably provided on the surface of the first slide rail, a second slide rail is slidably provided on the lower surface of the second slider, and the second slide rail is provided on the upper surface of the spray box, and the connecting rod is movably inserted into the side wall of the liquid storage tank.

[0009] In a preferred embodiment of the present invention, the driving assembly includes a driving motor, a half gear is fixedly provided at the end of the output shaft of the driving motor, a rectangular ring is sleeved on the surface of the half gear, and an internal rack is provided on the inner wall of the rectangular ring, and the internal rack can mesh with the half gear. A limit rod is fixedly provided on the side wall of the rectangular ring, and the limit rod is movably inserted into the inside of the limit seat, and the limit seat is welded to the side wall of the liquid storage tank.

[0010] In a preferred embodiment of the present invention, an external rack is fixedly provided on the side wall of the upper surface of the rectangular ring, a small gear is meshed on the surface of the external rack, a gear shaft is fixedly provided at the center of the small gear, and the end of the gear shaft is movably provided on the inner wall of the liquid storage tank, and a large gear is fixedly provided on the surface of the small gear, and the large gear and the small gear are located on the same rotation center.

[0011] In a preferred embodiment of the present invention, a pair of second racks are meshed on the left and right side walls of the large gear, a bracket is fixedly provided on the upper surface of the pair of second racks, a connecting rod is fixedly welded to the end of the bracket, and a plurality of positioning rods are inserted into the surface of the bracket, and the ends of the positioning rods are welded to the upper surface of the liquid storage tank.

[0012] In a preferred embodiment of the present invention, a top rod is fixedly provided on the lower surface of the bracket, the end of the top rod is movably inserted into the inside of the liquid storage tank, and a pair of water inlet sleeves are fixedly provided inside the liquid storage tank. The surface of the pair of water inlet sleeves is provided with a liquid inlet, and a sealing piston is connected inside the water inlet sleeves. A top rod is fixedly provided at the center of the upper surface of the sealing piston, and the top rod movably penetrates the top of the water inlet sleeve.

[0013] In a preferred embodiment of the present invention, the end of the water inlet sleeve is connected to the inside of the transfer box, and a pair of baffles are movably provided on the side wall of the transfer box. The length of the baffles is less than the internal height of the transfer box, and the baffles are installed at an angle. Several sealing gaskets are provided on the surface of the baffles.

[0014] In a preferred embodiment of the present invention, a support rod is fixedly provided on the upper surface of the liquid storage tank, and the end of the support rod is screwed onto the bottom of the agricultural drone. An electrostatic generator is fixedly provided on the side wall of the upper surface of the liquid storage tank. An inlet is provided on the upper surface of the liquid storage tank, and a sealing cap is screwed onto the surface of the inlet. The liquid storage tank is made of transparent acrylic sheet.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] This invention discloses an electrostatic spraying device mounted on an agricultural drone. By incorporating a drive assembly, which moves a top rod up and down to pressurize the inside of the spray box, the device atomizes the sprayed pesticide. Furthermore, the drive assembly drives a first rack to reciprocate, which in turn drives a first gear to oscillate periodically, thereby periodically controlling the nozzle angle and increasing the maximum spraying range of the electrostatic spraying device. Attached Figure Description

[0017] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram (I) of an electrostatic spraying device mounted on an agricultural drone according to the present invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram (II) of an electrostatic spraying device mounted on an agricultural drone according to the present invention;

[0020] Figure 3 This is an enlarged view (A) of an electrostatic spraying device mounted on an agricultural drone according to the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the drive component of an electrostatic spraying device mounted on an agricultural drone according to the present invention;

[0022] Figure 5 This is a partial cross-sectional view of an electrostatic spraying device mounted on an agricultural drone according to the present invention.

[0023] In the diagram: 1. Storage tank; 2. Spraying box; 3. First slider; 4. First slide rail; 5. First rack; 6. First gear; 7. Second slide rail; 8. Second slider; 9. Swing arm; 10. Fixed rod; 11. Connecting rod; 12. Bracket; 13. Second rack; 14. Support rod; 15. Electrostatic generator; 16. Sealing cover; 17. Positioning rod; 18. Top rod; 19. Large gear; 20. Rectangular ring; 21. Limit seat; 22. Limit rod; 23. Internal rack; 24. Half gear; 25. Nozzle; 26. Hose; 27. Drive motor; 28. External rack; 29. ​​Small gear; 30. Gear shaft; 31. Transfer box; 32. Water inlet sleeve; 33. Liquid inlet; 34. Sealing piston; 35. Baffle. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0025] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0026] Please see Figure 1-5 The present invention provides a technical solution: an electrostatic spraying device mounted on an agricultural drone, comprising a liquid storage tank 1, a transfer box 31 fixedly disposed on the lower surface of the liquid storage tank 1, a spraying box 2 fixedly connected to the end of the transfer box 31, four hoses 26 fixedly disposed on the lower surface of the spraying box 2, nozzles 25 connected to the ends of the four hoses 26, a first gear shaft transversely disposed on the surface of the nozzle 25, and a first gear 6 fixedly disposed at the end of the first gear shaft, and the first gear shaft movably disposed on the surface of the spraying box 2, and a first rack 5 meshing on the surface of the first gear 6;

[0027] A first slider 3 is fixedly installed at the end of the first rack 5. A fixed rod 10 is fixedly installed on the surface of the first slider 3. A second slider 8 is fixedly installed at the end of the fixed rod 10. A swing arm 9 is movably installed on the surface of the second slider 8. A connecting rod 11 is movably installed at the end of the swing arm 9. A driving assembly is fixedly installed on the side wall of the liquid storage tank 1. The driving assembly is used to drive the connecting rod 11 to move.

[0028] By incorporating a drive assembly that moves the top rod 18 up and down, the spray box 2 is pressurized, thus atomizing the sprayed pesticide. The drive assembly also drives the first rack 5 to reciprocate, which in turn drives the first gear 6 to oscillate periodically, thereby periodically controlling the angle of the nozzle 25 and increasing the maximum spraying range of the electrostatic spraying device.

[0029] Please see Figure 1-5 In a specific embodiment, a first slide rail 4 is fixedly provided on the surface of the spray box 2, a first slider 3 is slidably provided on the surface of the first slide rail 4, a second slide rail 7 is slidably provided on the lower surface of the second slider 8, and the second slide rail 7 is provided on the upper surface of the spray box 2. The connecting rod 11 is movably inserted into the side wall of the liquid storage tank 1.

[0030] Please see Figure 1-5 In this embodiment, the drive assembly includes a drive motor 27. A half gear 24 is fixedly installed at the end of the output shaft of the drive motor 27. A rectangular ring 20 is sleeved on the surface of the half gear 24, and an internal rack 23 is provided on the inner wall of the rectangular ring 20. The internal rack 23 can mesh with the half gear 24. A limit rod 22 is fixedly installed on the side wall of the rectangular ring 20, and the limit rod 22 is movably inserted into the inside of the limit seat 21. The limit seat 21 is welded to the side wall of the liquid storage tank 1. The internal rack 23 is meshed on both the upper and lower surfaces of the half gear 24. For example, when the half gear 24 meshes with the upper internal rack 23, the rectangular ring 20 moves to the left, then disengages and meshes with the lower internal rack 23. At this time, the rectangular ring 20 moves to the right. This ensures that when the half gear 24 starts to rotate, the rectangular ring 20 starts to reciprocate periodically along the direction of the limit rod 22.

[0031] Please see Figure 1-5 In this embodiment, an external rack 28 is fixedly provided on the side wall of the upper surface of the rectangular ring 20. A small gear 29 is meshed on the surface of the external rack 28. A gear shaft 30 is fixedly provided at the center of the small gear 29, and the end of the gear shaft 30 is movably provided on the inner wall of the liquid storage tank 1. A large gear 19 is fixedly provided on the surface of the small gear 29. The large gear 19 and the small gear 29 are located at the same rotation center. When the external rack 28 above the rectangular ring 20 starts to move, the small gear 29 meshing on the surface starts to rotate periodically, thereby driving the large gear 19 to rotate synchronously and periodically.

[0032] Please see Figure 1-5In this embodiment, a top rod 18 is fixedly installed on the lower surface of the bracket 12. The end of the top rod 18 is movably inserted into the inside of the liquid storage tank 1. A pair of water inlet sleeves 32 are fixedly installed inside the liquid storage tank 1. A liquid inlet 33 is opened on the surface of the pair of water inlet sleeves 32. A sealing piston 34 is connected inside the water inlet sleeves 32. A top rod 18 is fixedly installed at the center of the upper surface of the sealing piston 34. The top rod 18 movably passes through the top of the water inlet sleeve 32.

[0033] Please see Figure 1-5 In this embodiment, a push rod 18 is fixedly installed on the lower surface of the bracket 12. The end of the push rod 18 is movably inserted into the inside of the liquid storage tank 1. A pair of water inlet sleeves 32 are fixedly installed inside the liquid storage tank 1. The surface of the pair of water inlet sleeves 32 is provided with a liquid inlet 33. A sealing piston 34 is connected inside the water inlet sleeves 32. The push rod 18 is fixedly installed at the center of the upper surface of the sealing piston 34. The push rod 18 movably passes through the top of the water inlet sleeves 32. The end of the water inlet sleeves 32 is connected to the inside of the transfer box 31. A pair of baffles 35 are movably installed on the side walls of the transfer box 31. The length of the baffles 35 is less than the internal height of the transfer box 31. The baffles 35 are installed at an angle. Several sealing gaskets are provided on the surface of the baffles 35. Assuming that the push rod 18 on the left side is currently in position... At the bottom, and the right push rod 18 at the top, when the two push rods 18 move, the left push rod 18 moves upward first, and the right push rod 18 moves downward. At the same time, a large amount of liquid enters the right water inlet sleeve 32 through the liquid inlet 33. When the left push rod 18 moves upward, the liquid inside the left water inlet sleeve 32 will not be squeezed, and the pressure of the left baffle 35 will decrease. At this time, the baffle 35 will rotate a certain angle due to gravity, thus achieving a sealing effect. When the right push rod 18 moves downward, it drives the sealing piston 34 to move downward, thereby pushing the internal liquid to flow and pushing open the right baffle 35, so that the liquid can flow. Thus, the transfer box 31 can always be filled with liquid through this device.

[0034] Please see Figure 1-5 In this embodiment, a support rod 14 is fixedly installed on the upper surface of the liquid storage tank 1, and the end of the support rod 14 is screwed onto the bottom of the plant protection drone. An electrostatic generator 15 is fixedly installed on the side wall of the upper surface of the liquid storage tank 1. An inlet is provided on the upper surface of the liquid storage tank 1, and a sealing cap 16 is screwed onto the surface of the inlet. The liquid storage tank 1 is made of transparent acrylic sheet material. Static electricity is generated by the electrostatic generator 15, and the liquid content inside can be observed through the transparent acrylic sheet material.

[0035] It should be noted that the present invention is an electrostatic spraying device mounted on an agricultural drone. All components are general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0036] Working principle: When the device is needed, it is first installed on the bottom of the agricultural drone via the support rod 14. When the agricultural drone flies to a high altitude, the operator needs to start the drive motor 27. As the drive motor 27 rotates, it drives the half gear 24 to rotate. The upper and lower surfaces of the half gear 24 are both equipped with internal racks 23. For example, when the half gear 24 engages with the upper internal rack 23, the rectangular ring 20 moves to the left, then disengages and engages with the lower internal rack 23. When engaged, the rectangular ring 20 moves to the right, thus ensuring that when the half gear 24 starts to rotate, the rectangular ring 20 begins to reciprocate along the direction of the limit rod 22, thereby driving the outer rack 28 above the rectangular ring 20 to move. At this time, the small gear 29 with surface engagement begins to reciprocate periodically, thereby driving the large gear 19 to reciprocate synchronously. At this time, a pair of second racks 13 with surface engagement are provided on the large gear 19, and the left and right second racks 13 move alternately (one goes up and one goes down).

[0037] When one of the second racks 13 begins to move up and down, it drives the connecting rod 11 to move up and down through the bracket 12. At this time, the end swing arm 9 begins to move, driving the second slider 8 to reciprocate. Meanwhile, the first slider 3 and the second slider 8 are connected by the fixed rod 10. The first slider 3 begins to move periodically, driving the first rack 5 to move, thereby driving the first gear 6 with surface meshing to rotate. The spray head 25 is fixed on the shaft surface of the first gear 6. At this time, the spray head 25 begins to swing periodically, thereby increasing the spraying range.

[0038] Furthermore, the interlaced second rack 13 drives the two push rods 18 to move up and down via the bracket 12. Figure 5 As shown in the diagram, assuming the left push rod 18 is at its lowest point and the right push rod 18 is at its highest point, when the two push rods 18 move, the left push rod 18 moves upward first, and the right push rod 18 moves downward. A large amount of liquid enters the right inlet sleeve 32 through the liquid inlet 33. Initially, as the left push rod 18 moves upward, the liquid inside the left inlet sleeve 32 is not compressed, and the pressure on the left baffle 35 decreases. At this point, the baffle 35 rotates at a certain angle due to gravity, achieving a sealing effect. Meanwhile, the right push rod 18 moves downward, driving the sealing piston 34 downward, thereby pushing the internal liquid to flow and opening the right baffle 35, allowing the liquid to flow. This device ensures that the transfer box 31 is always full of liquid, which flows into the spray box 2 and out of the nozzle 25, completing the spraying operation.

Claims

1. An electrostatic spraying device mounted on an agricultural drone, characterized in that: Includes a storage tank (1), a transfer box (31) is fixedly installed on the lower surface of the storage tank (1), a spray box (2) is fixedly connected below the transfer box (31), four hoses (26) are fixedly installed on the lower surface of the spray box (2), and a nozzle (25) is connected to the end of the four hoses (26). A first gear shaft is transversely installed on the surface of the nozzle (25), and a first gear (6) is fixedly installed at the end of the first gear shaft. The first gear shaft is movably installed on the surface of the spray box (2), and a first rack (5) is meshed on the surface of the first gear (6). A first slider (3) is fixedly provided at the end of the first rack (5), a fixed rod (10) is fixedly provided on the surface of the first slider (3), a second slider (8) is fixedly provided at the end of the fixed rod (10), a swing arm (9) is movably provided on the surface of the second slider (8), a connecting rod (11) is movably provided at the end of the swing arm (9), and a driving assembly is fixedly provided on the side wall of the liquid storage tank (1). The driving assembly is used to drive the connecting rod (11) to move. The drive assembly includes a drive motor (27), a half gear (24) is fixedly provided at the end of the output shaft of the drive motor (27), a rectangular ring (20) is sleeved on the surface of the half gear (24), and an internal rack (23) is provided on the inner wall of the rectangular ring (20), and the internal rack (23) can mesh with the half gear (24). A limit rod (22) is fixedly provided on the side wall of the rectangular ring (20), and the limit rod (22) is movably inserted into the inside of the limit seat (21), and the limit seat (21) is welded to the side wall of the liquid storage tank (1). An external rack (28) is fixedly provided on the side wall of the upper surface of the rectangular ring (20). A small gear (29) is meshed on the surface of the external rack (28). A gear shaft (30) is fixedly provided at the center of the small gear (29). The end of the gear shaft (30) is movably provided on the inner wall of the liquid storage tank (1). A large gear (19) is fixedly provided on the surface of the small gear (29). The large gear (19) and the small gear (29) are located on the same rotation center. The large gear (19) has a pair of second racks (13) meshing on its left and right side walls. A bracket (12) is fixedly installed on the upper surface of the pair of second racks (13). A connecting rod (11) is fixedly welded to the end of the bracket (12). Several positioning rods (17) are inserted into the surface of the bracket (12). The ends of the positioning rods (17) are welded to the upper surface of the liquid storage tank (1).

2. The electrostatic spraying device mounted on an agricultural drone according to claim 1, characterized in that: The spray box (2) is fixedly provided with a first slide rail (4), the first slide rail (4) is slidably provided with a first slider (3), the second slider (8) is slidably provided with a second slide rail (7) on its lower surface, and the second slide rail (7) is provided on the upper surface of the spray box (2). The connecting rod (11) is movably inserted into the side wall of the liquid storage tank (1).

3. The electrostatic spraying device mounted on an agricultural drone according to claim 1, characterized in that: A top rod (18) is fixedly installed on the lower surface of the bracket (12). The end of the top rod (18) is movably inserted into the inside of the liquid storage tank (1). A pair of water inlet sleeves (32) are fixedly installed inside the liquid storage tank (1). A liquid inlet (33) is opened on the surface of the pair of water inlet sleeves (32). A sealing piston (34) is connected inside the water inlet sleeves (32). The top rod (18) is fixedly connected to the center of the upper surface of the sealing piston (34). The top rod (18) moves through the top of the water inlet sleeves (32).

4. The electrostatic spraying device mounted on an agricultural drone according to claim 3, characterized in that: The end of the water inlet sleeve (32) is connected to the inside of the transfer box (31), and a pair of baffles (35) are movably provided on the side wall of the transfer box (31). The length of the baffle (35) is less than the internal height of the transfer box (31), and the baffle (35) is installed at an angle. Several sealing gaskets are provided on the surface of the baffle (35).

5. The electrostatic spraying device mounted on an agricultural drone according to claim 1, characterized in that: The upper surface of the liquid storage tank (1) is fixedly provided with a support rod (14), and the end of the support rod (14) is screwed onto the bottom of the plant protection drone. An electrostatic generator (15) is fixedly provided on the side wall of the upper surface of the liquid storage tank (1). The upper surface of the liquid storage tank (1) is provided with an inlet, and a sealing cap (16) is screwed onto the surface of the inlet. The liquid storage tank (1) is made of transparent acrylic sheet.

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