Pesticide spraying unmanned aerial vehicle suitable for planting industry

Abstract

The invention relates to the technical field of pesticide spraying in the planting industry, in particular to a pesticide spraying unmanned aerial vehicle suitable for the planting industry. Comprising an unmanned aerial vehicle body, a pesticide cavity is formed in the unmanned aerial vehicle body, a semi-cylindrical shell is fixed to the lower end of the unmanned aerial vehicle body, a sliding ring is concentrically fixed to the interior of the shell, and a motor is fixed to the portion, on the inner side of the sliding ring, of the lower end of the unmanned aerial vehicle body; a second gear is concentrically fixed to a rotating shaft of a second connecting rod of the connecting assembly at the tail end and is in meshed connection with a nozzle assembly, the nozzle assembly at the head end is installed at the lower end of the sliding ring, the other nozzle assemblies are installed at the lower end of the sliding block, and a water pump is installed on the nozzle assembly and communicated with the pesticide cavity through a hose. According to the pesticide spraying device, the impact force of sprayed pesticide can be adjusted according to the air volume, when the air volume is large, the offset of the sprayed pesticide is reduced by improving the impact force of the sprayed pesticide, and it can be guaranteed that the pesticide is effectively sprayed to crops.

Description

Technical Field

[0001] The present invention relates to the technical field of pesticide spraying in the planting industry, and in particular to a pesticide spraying drone suitable for the planting industry. Background Art

[0002] The traditional way of spraying pesticides is manual spraying. During manual spraying, the user needs to carry a medicine box to spray. During manual spraying, the pesticide itself has certain toxicity and will cause harm to the human body. At the same time, long-term spraying will reduce the physical strength of the human body, resulting in reduced spraying efficiency. Another existing method of spraying pesticides is to use a spraying vehicle to spray pesticides. However, the process of using a spraying vehicle to spray pesticides is likely to cause damage to crops and reduce plant yields.

[0003] Using drones to spray pesticides can improve spraying efficiency. However, when using drones to spray pesticides, the drones need to maintain a certain altitude above the crops, and the sprayed pesticides are easily affected by the wind. Existing pesticide spraying drones cannot adjust the impact force of the sprayed pesticides according to the size of the wind, thereby reducing the deviation of the sprayed pesticides. Summary of the invention

[0004] The main purpose of the present invention is to provide a pesticide spraying drone suitable for the planting industry, which can adjust the impact force of the sprayed medicine according to the size of the wind volume. When the wind volume is large, the pesticide spraying drone suitable for the planting industry can ensure effective pesticide spraying on crops by increasing the impact force of the sprayed medicine and thereby reducing the deviation of the sprayed medicine.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] A pesticide spraying drone suitable for the planting industry comprises a drone body, a medicine chamber is arranged in the drone body, a semi-cylindrical shell is fixed at the lower end of the drone body, a slip ring is concentrically fixed in the shell, a motor is fixed at the lower end of the drone body inside the slip ring, the motor is concentric with the slip ring, a sliding assembly is arranged on the slip ring, the sliding assembly comprises a plurality of connecting assemblies, two adjacent connecting assemblies are connected by a slider, the connecting assembly comprises a first connecting rod and a second connecting rod that are rotatably connected, the first connecting rod and the second connecting rod of two adjacent connecting assemblies are rotatably connected to the same slider through a rotating shaft, an arc-shaped annular groove is concentrically opened at the upper end of the slip ring, the slider is slidably arranged in the annular groove, the output shaft of the motor is fixedly connected to the slider at the end through a connecting plate, and the first end The first connecting rod of the connecting assembly is rotatably connected to the slip ring through a rotating shaft, the second connecting rod of the connecting assembly at the end is rotatably connected to the slider at the end through a rotating shaft, the rotating shaft on the first connecting rod is fixedly connected to it, the rotating shaft on the second connecting rod is fixedly connected to it, the two rotating shafts rotatably connected to the same slider are concentrically fixed with a third gear, the two third gears on the same slider are meshed, the lower end of the rotating shaft of the first connecting rod is concentrically fixed with a second gear, the rotating shaft of the second connecting rod of the connecting assembly at the end is concentrically fixed with a second gear, the second gears are meshed and connected with a nozzle assembly, the nozzle assembly at the head end is installed at the lower end of the slip ring, and the remaining nozzle assemblies are installed to the lower end of the slider, a water pump is installed on the nozzle assembly, and the water pump is connected to the medicine chamber through a hose.

[0007] Specifically, the slider at the head end is located outside the shell, the slider at the tail end is located inside the shell, the nozzle assembly at the head end is located outside the shell, and the nozzle assembly at the tail end is located inside the shell.

[0008] Specifically, the nozzle assembly includes a spray rod, the spray rod of the nozzle assembly at the first end is fixed at the lower end of the slip ring, and the spray rods of the other nozzle assemblies are respectively fixed at the lower ends of the slider, a diffusion port is opened in the lower end of the spray rod, the diffusion port is connected with the spray hole in the spray rod, the spray hole is connected with the water pump, a fixing frame is fixed in the spray hole, a sphere is fixed at the lower end of the fixing frame, a spherical cavity is formed between the sphere and the hole wall of the spray hole, a plurality of inclined blades are evenly distributed on the circumference of the spherical cavity, the inner side of the blade is in sliding contact with the outer edge of the sphere, and the outer side of the blade is in sliding contact with the inner wall of the spherical cavity, a rotating rod is fixed on the blade, the axis of the rotating rod is perpendicular to the axis of the spray rod, one end of the rotating rod away from the blade extends to the outside of the spray rod, the rotating rod is rotatably sealed and connected to the spray rod, a first gear is concentrically fixed at one end of the rotating rod away from the blade, a rotating sleeve is rotatably provided on the outside of the spray rod, a gear ring is concentrically fixed to the upper end of the rotating sleeve, the second gear is meshed with the gear ring, an end gear is concentrically fixed in the lower end of the rotating sleeve, and the first gear is meshed with the end gear.

[0009] Specifically, a direct current hole concentric with the spray rod is opened in the sphere.

[0010] Specifically, the diffusion port is conical.

[0011] Specifically, an arc-shaped conductive sheet is concentrically fixed in the slip ring outside the shell, and electric contacts are fixed on the sliders. The electric contacts on the slider outside the shell are electrically connected to the conductive sheet through sliding, the conductive sheet is electrically connected to the power supply, the water pump of the nozzle assembly fixed at the lower end of the slip ring is electrically connected to the power supply, and the controller, motor and power supply are electrically connected.

[0012] Specifically, a wind detector is fixed on the upper end of the drone body, and the wind detector is electrically connected to the controller and the power supply.

[0013] Specifically, a support leg is installed at the lower end of the drone body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention can adjust the impact force of the sprayed medicine according to the size of the wind volume. When the wind volume is large, the impact force of the sprayed medicine is increased and the deviation of the sprayed medicine is reduced, thereby ensuring effective pesticide spraying on crops.

[0016] 2. The impact force of the sprayed medicine is adjusted by changing the inclination angle of the blades. When the impact force of the sprayed medicine increases, the atomization area of ​​the medicine decreases. In order to ensure effective coverage of the crops under the drone body, the nozzle assembly in the shell can move to the outside of the shell. The number of nozzle assemblies outside the shell increases and the distance between adjacent nozzle assemblies decreases. Therefore, the coverage area of ​​the sprayed medicine can be guaranteed, and the crops under the drone are effectively covered by the sprayed medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the drone body.

[0018] Figure 2 This is a schematic diagram of the lower shell of the drone body.

[0019] Figure 3 A cross-sectional view of a slip ring.

[0020] Figure 4 for Figure 3 Magnified view of area A.

[0021] Figure 5 A cross-sectional view of the nozzle assembly.

[0022] Figure 6 A schematic diagram of a sliding assembly.

[0023] Figure 7 A schematic cross-sectional view of a slip ring.

[0024] Figure 8 This is a schematic diagram of the distribution of the nozzle assembly at the lower end of the slip ring.

[0025] Fig. 9 Schematic diagram of the connection between the slider and the nozzle assembly.

[0026] The names of the parts in the attached drawings are: 1. UAV body; 2. Outrigger; 3. Medicine chamber; 4. Shell; 5. Slip ring; 6. Slider; 7. Third gear; 8. Connecting assembly; 801. First connecting rod; 802. Second connecting rod; 9. Connecting plate; 10. Motor; 11. Spray rod; 12. Water pump; 13. Hose; 14. Conductive sheet; 15. Electrical contact; 16. Diffuser; 17. Sphere; 18. Fixing frame; 19. DC hole; 20. Blade; 21. First gear; 22. Rotating sleeve; 23. Face gear; 24. Gear ring; 25. Second gear; 26. Wind detector; 27. Rotating shaft. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] like Figure 1-Figure 9 As shown, a pesticide spraying drone suitable for the planting industry includes a drone body 1, and a leg 2 is installed at the lower end of the drone body 1. A pesticide chamber 3 is arranged in the drone body 1.

[0029] A semi-cylindrical shell 4 is fixed at the lower end of the drone body 1 , a slip ring 5 is concentrically fixed inside the shell 4 , and a motor 10 is fixed at the lower end of the drone body 1 inside the slip ring 5 , and the motor 10 is concentric with the slip ring 5 .

[0030] The slip ring 5 is provided with a sliding assembly, which includes a plurality of connecting assemblies 8 , and two adjacent connecting assemblies 8 are connected via a slider 6 .

[0031] like Figure 6 As shown, the connecting assembly 8 includes a first connecting rod 801 and a second connecting rod 802 which are rotatably connected.

[0032] The first connecting rod 801 and the second connecting rod 802 of two adjacent connecting assemblies 8 are rotatably connected to the same slider 6 via the rotating shaft 27. An arc-shaped annular groove is concentrically provided on the upper end of the slip ring 5, and the slider 6 is slidably arranged in the annular groove. The output shaft of the motor 10 is fixedly connected to the slider 6 at the end via the connecting plate 9.

[0033] The first connecting rod 801 of the connecting assembly 8 at the head end is rotatably connected to the slip ring 5 via the rotating shaft 27 , and the second connecting rod 802 of the connecting assembly 8 at the end is rotatably connected to the slider 6 at the end via the rotating shaft 27 .

[0034] The rotating shaft 27 on the first connecting rod 801 is fixedly connected thereto, and the rotating shaft 27 on the second connecting rod 802 is fixedly connected thereto. A third gear 7 is concentrically fixed on the two rotating shafts 27 rotatably connected to the same slider 6, and the two third gears 7 on the same slider 6 are meshed.

[0035] A second gear 25 is concentrically fixed to the lower end of the rotating shaft 27 of the first connecting rod 801, and a second gear 25 is concentrically fixed to the rotating shaft 27 of the second connecting rod 802 of the terminal connecting assembly 8. The second gear 25 is meshedly connected with a nozzle assembly.

[0036] like Figure 8 As shown, the nozzle assembly at the first end is installed at the lower end of the slip ring 5, and the remaining nozzle assemblies are installed at the lower end of the slider 6.

[0037] A water pump 12 is installed on the nozzle assembly, and the water pump 12 is connected to the medicine chamber 3 through a hose 13.

[0038] like Figure 2 and Figure 8 As shown, the slider 6 at the head end is located outside the housing 4, and the slider 6 at the end end is located inside the housing 4. The nozzle assembly at the head end is located outside the housing 4, and the nozzle assembly at the end end is located inside the housing 4.

[0039] The spray head assembly includes a spray rod 11 . The spray rod 11 of the first spray head assembly is fixed to the lower end of the slip ring 5 , and the spray rods 11 of the remaining spray head assemblies are respectively fixed to the lower ends of the slide blocks 6 .

[0040] like Figure 4 and Figure 5 As shown, a diffuser 16 is provided in the lower end of the spray rod 11, and the diffuser 16 is conical. The diffuser 16 is connected to the spray hole in the spray rod 11, and the spray hole is connected to the water pump 12. A fixing frame 18 is fixed in the spray hole, and a sphere 17 is fixed at the lower end of the fixing frame 18. A spherical cavity is formed between the sphere 17 and the hole wall of the spray hole. A direct current hole 19 concentric with the spray rod 11 is provided in the sphere 17.

[0041] A plurality of inclined blades 20 are evenly distributed on the inner circumference of the spherical cavity. The inner side of the blades 20 is in sliding contact with the outer edge of the sphere 17, and the outer side of the blades 20 is in sliding contact with the inner wall of the spherical cavity. A rotating rod is fixed on each blade 20. The axis of the rotating rod is perpendicular to the axis of the spray rod 11. The end of the rotating rod away from the blade 20 extends to the outside of the spray rod 11. The rotating rod is rotatably sealed with the spray rod 11. The end of the rotating rod away from the blade 20 is concentrically fixed with a first gear 21. A rotating sleeve 22 is rotatably sleeved on the outside of the spray rod 11. A gear ring 24 is concentrically fixed to the upper end of the rotating sleeve 22. The second gear 25 meshes with the gear ring 24. An end face gear 23 is concentrically fixed in the lower end of the rotating sleeve 22. The first gear 21 meshes with the end face gear 23.

[0042] like Figure 7 and Fig. 9 As shown, an arc-shaped conductive sheet 14 is concentrically fixed in the slip ring 5 outside the housing 4, and an electric contact 15 is fixed on each slider 6. The electric contact 15 on the slider 6 outside the housing 4 is electrically connected to the conductive sheet 14 by sliding, and the conductive sheet 14 is electrically connected to the power supply. The water pump 12 of the nozzle assembly fixed at the lower end of the slip ring 5 is electrically connected to the power supply, and the controller, the motor 10 and the power supply are electrically connected. A wind detector 26 is fixed at the upper end of the drone body 1, and the wind detector 26 is electrically connected to the controller and the power supply.

[0043] After the medicine is loaded into the medicine chamber 3, the electrical contact 15 on the slider 6 outside the shell 4 contacts the conductive sheet 14 during the uniform flight of the drone body 1 over the crops. Therefore, the water pump 12 of the nozzle assembly on the slider 6 outside the shell 4 is started. Since the water pump 12 of the nozzle assembly fixed at the lower end of the slip ring 5 is electrically connected to the power supply, the water pump 12 of the nozzle assembly fixed at the lower end of the slip ring 5 is started, that is, during the normal flight of the drone body 1 over the crops, the water pumps 12 of the nozzle assemblies outside the shell 4 are all started, and the liquid medicine in the medicine chamber 3 is sprayed out through the nozzle assembly outside the shell 4, and the liquid medicine sprayed from the nozzle assembly outside the shell 4 covers the crops below the drone body 1.

[0044] After the medicine enters the spray hole of the spray rod 11, a part of the medicine rotates out from the gap between the blade 20, the sphere 17 and the inner wall of the spray hole and diffuses into water mist, and a part of the fluid is sprayed out through the direct current hole 19. The setting of the direct current hole 19 enables the nozzle assembly to solve the problem of the low-speed zone in the center of the jet while ensuring the diffusibility of the jet.

[0045] The drug reaches its maximum speed when it flows through the upper end of the diffusion port 16 with the smallest diameter. After being accelerated, the drug is atomized and sprayed along the diffusion port 16, and a water mist with a small particle size is formed under the interaction between the high-speed flowing drug and the air.

[0046] When the blade 20 is tilted at a large angle, the drug swirl degree is strong, the atomization degree is improved, the water mist particle size is small, the atomization angle is large, and the effective range is small, that is, the impact force of the sprayed drug is small, but the area covered by the atomized drug is large.

[0047] When the blade 20 is tilted at a small angle, the drug swirl degree is low, the atomization degree is reduced, the water mist particle size is large, the atomization angle is reduced, and the effective range is increased, that is, the impact force of the sprayed drug is large, but the area covered by the atomized drug is small. When the wind volume is large during the uniform flight of the drone body 1, the effective range of the sprayed drug can be increased by reducing the tilt angle of the blade 20 and reducing the deviation of the sprayed drug.

[0048] During the uniform flight of the drone body 1, the wind detector 26 detects the change of wind force in real time. When the wind detector 26 detects an increase in wind force, the output shaft of the motor 10 drives the slider 6 at the end located in the shell 4 to move toward the outside of the shell 4 through the connecting plate 9. During the movement of the slider 6 at the end toward the outside of the shell 4, the angle between the first connecting rod 801 and the second connecting rod 802 of the connecting assembly 8 decreases, and the slider 6 in the shell 4 gradually moves toward the outside of the shell 4.

[0049] When the angle between the first connecting rod 801 and the second connecting rod 802 decreases, the rotating shaft 27 connected to the second gear 25 drives the second gear 25 to rotate. When the second gear 25 rotates, the rotating sleeve 22 and the end gear 23 are driven to rotate through the gear ring 24. When the end gear 23 rotates, the blade 20 is driven to rotate through the first gear 21 and the rotating rod. After the blade 20 rotates, its inclination angle decreases, and then the swirl degree of the drug passing through the spray hole is reduced, which reduces the atomization degree of the drug, increases the water mist particle size, reduces the atomization angle, and increases the effective range, that is, the impact force of the sprayed drug is large. When the wind volume is large during the uniform flight of the drone body 1, the offset of the sprayed drug can be reduced.

[0050] After the slider 6 and the spray head assembly in the housing 4 move to the outside of the housing 4 , the conductive sheet 14 and the electrical contact 15 are electrically connected, that is, after the spray head assembly moves to the outside of the housing 4 , the water pump 12 thereon is started.

[0051] After the inclination angle of the blade 20 is reduced, the atomization angle is reduced and the effective range is increased, but the number of nozzle assemblies outside the shell 4 is increased, and the gap between two adjacent nozzle assemblies outside the shell 4 is reduced. Therefore, after the inclination angle of the blade 20 is reduced, the coverage area of ​​the sprayed medicine can still be guaranteed, ensuring that the crops under the drone are effectively covered by the sprayed medicine.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pesticide spraying drone suitable for the planting industry, comprising a drone body (1), wherein a pesticide chamber (3) is arranged in the drone body (1), and wherein: A semi-cylindrical shell (4) is fixed at the lower end of the drone body (1), a slip ring (5) is concentrically fixed inside the shell (4), a motor (10) is fixed at the lower end of the drone body (1) inside the slip ring (5), the motor (10) is concentric with the slip ring (5), a sliding assembly is arranged on the slip ring (5), the sliding assembly includes a plurality of connecting assemblies (8), two adjacent connecting assemblies (8) are connected by a slider (6), and the connecting assembly (8) includes a first connecting rod (801) and a first connecting rod (802) which are rotatably connected. Two connecting rods (802), the first connecting rod (801) and the second connecting rod (802) of the two adjacent connecting assemblies (8) are rotatably connected to the same slider (6) via a rotating shaft (27), an arc-shaped annular groove is coaxially provided on the upper end of the slip ring (5), the slider (6) is slidably arranged in the annular groove, the output shaft of the motor (10) is fixedly connected to the slider (6) at the end via a connecting plate (9), the first connecting rod (801) of the connecting assembly (8) at the head end is rotatably connected to the slip ring (5) via the rotating shaft (27) The second connecting rod (802) of the connecting assembly (8) at the end is rotatably connected to the slider (6) at the end via a rotating shaft (27), the rotating shaft (27) on the first connecting rod (801) is fixedly connected thereto, the rotating shaft (27) on the second connecting rod (802) is fixedly connected thereto, a third gear (7) is concentrically fixed on the two rotating shafts (27) rotatably connected to the same slider (6), the two third gears (7) on the same slider (6) are meshed, and the first connecting rod (801) is fixedly connected to the slider (6) via a rotating shaft (27). A second gear (25) is concentrically fixed to the lower end of the rotating shaft (27), a second gear (25) is concentrically fixed to the rotating shaft (27) of the second connecting rod (802) of the terminal connecting assembly (8), and the second gear (25) is meshingly connected to a nozzle assembly. The nozzle assembly at the first end is mounted on the lower end of the slip ring (5), and the remaining nozzle assemblies are mounted on the lower end of the slider (6). A water pump (12) is mounted on the nozzle assembly, and the water pump (12) is connected to the medicine chamber (3) through a hose (13).

2. The pesticide spraying drone suitable for the planting industry according to claim 1, characterized in that: The slider (6) at the head end is located outside the shell (4), the slider (6) at the tail end is located inside the shell (4), the nozzle assembly at the head end is located outside the shell (4), and the nozzle assembly at the tail end is located inside the shell (4).

3. The pesticide spraying drone suitable for the planting industry according to claim 1, characterized in that: The spray head assembly comprises a spray rod (11), wherein the spray rod (11) of the first spray head assembly is fixed to the lower end of the slip ring (5), and the spray rods (11) of the other spray head assemblies are respectively fixed to the lower ends of the sliders (6). A diffusion port (16) is provided in the lower end of the spray rod (11), the diffusion port (16) is communicated with a spray hole in the spray rod (11), the spray hole is communicated with a water pump (12), a fixing frame (18) is fixed in the spray hole, a sphere (17) is fixed at the lower end of the fixing frame (18), a spherical cavity is formed between the sphere (17) and the hole wall of the spray hole, a plurality of inclined blades (20) are evenly distributed on the circumference of the spherical cavity, the inner side of the blades (20) is in sliding contact with the outer edge of the sphere (17), and the blades (18) are in sliding contact with the outer edge of the sphere (17). The outer side of the blade (20) is in sliding contact with the inner wall of the spherical cavity. A rotating rod is fixed on each blade (20). The axis of the rotating rod is perpendicular to the axis of the spray rod (11). One end of the rotating rod away from the blade (20) extends to the outer side of the spray rod (11). The rotating rod is rotatably sealed with the spray rod (11). A first gear (21) is concentrically fixed to one end of the rotating rod away from the blade (20). A rotating sleeve (22) is rotatably sleeved on the outer side of the spray rod (11). A gear ring (24) is concentrically fixed to the upper end of the rotating sleeve (22). The second gear (25) meshes with the gear ring (24). An end face gear (23) is concentrically fixed inside the lower end of the rotating sleeve (22). The first gear (21) meshes with the end face gear (23).

4. The pesticide spraying drone suitable for the planting industry according to claim 3, characterized in that: The sphere (17) is provided with a direct flow hole (19) which is concentric with the spray rod (11).

5. The pesticide spraying drone suitable for the planting industry according to claim 3, characterized in that: The diffusion port (16) is tapered.

6. The pesticide spraying drone suitable for the planting industry according to claim 3, characterized in that: An arc-shaped conductive sheet (14) is concentrically fixed in the slip ring (5) outside the shell (4), and an electric contact (15) is fixed on the slider (6). The electric contact (15) on the slider (6) outside the shell (4) is electrically connected to the conductive sheet (14) by sliding, and the conductive sheet (14) is electrically connected to a power supply. A water pump (12) of the nozzle assembly fixed at the lower end of the slip ring (5) is electrically connected to the power supply, and a controller, a motor (10) and a power supply are electrically connected.

7. The pesticide spraying drone suitable for the planting industry according to claim 6, characterized in that: A wind detector (26) is fixed on the upper end of the drone body (1), and the wind detector (26) is electrically connected to the controller and the power supply.

8. The pesticide spraying drone suitable for the planting industry according to claim 1, characterized in that: A supporting leg (2) is installed at the lower end of the drone body (1).

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