Pesticide spraying mechanism of plant protection unmanned aerial vehicle

Abstract

The utility model relates to the technical field of unmanned aerial vehicle pesticide spraying, in particular to a pesticide spraying mechanism of a plant protection unmanned aerial vehicle, which comprises an unmanned aerial vehicle body, a pesticide box and an adjusting device, the bottom end of the unmanned aerial vehicle body is connected with the pesticide box, and the lower part of the front end of the pesticide box is connected with a U-shaped fixed frame through two groups of connecting rods; the adjusting device comprises connecting rods and electric telescopic rods, the output ends of the electric telescopic rods drive sliding blocks, the connecting rods can be driven by the sliding blocks to be opened at equal intervals, and when the connecting rods are opened, the sliding blocks are driven by an adjusting shaft to be opened at equal intervals, so that spacing adjustment of the spraying heads can be achieved; the distance between the spraying heads can be adjusted according to different crops, the spraying density can be adjusted, the using amount of pesticide to the crops is controlled, the situation that too much or too little pesticide affects growth of the crops is avoided, and the spraying efficiency and effect of the device on the crops can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of unmanned aerial vehicle (UAV) medicine spraying, in particular to a medicine spraying mechanism of a plant protection UAV. Background Art

[0002] As we all know, plant protection drones, also known as unmanned aerial vehicles, are unmanned aircraft used for agricultural and forestry plant protection operations. This type of unmanned aircraft consists of three parts: a flight platform (fixed-wing, helicopter, multi-axis aircraft), a navigation flight control, and a spraying mechanism. It can spray pesticides, seeds, powders, etc. through ground remote control or navigation flight control.

[0003] Drones can replace manual labor in crop maintenance. In agriculture, drones can spray plants during flight. Compared with manual drone spraying, drone spraying is more efficient. Existing spray heads cannot adjust the spacing during the flight of the drone, and different plants require different spraying densities. Existing plant protection drones obviously do not have the function of adjusting the spraying density. Utility Model Content

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the existing technology, the utility model provides a medicine spraying mechanism for a plant protection UAV.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a medicine spraying mechanism for a plant protection drone, comprising a drone body, a medicine box and an adjusting device, the bottom end of the drone body is connected to the medicine box, and the lower front end of the medicine box is connected to a U-shaped fixing frame through two groups of connecting rods. The adjusting device comprises a connecting rod and an electric telescopic rod, and the fixing frame is away from the medicine box. One end of the fixing frame is hingedly connected to several groups of the connecting rods in a scissor-fork manner, and the center position of several groups of the connecting rods is provided with a rotating shaft, and the rotating shaft is rotatably connected to the side wall of the fixing frame. An adjusting shaft is hingedly provided between the upper and lower parts of each two groups of the connecting rods, and the adjusting shaft is connected to a slider at one end close to the fixing frame, and the bottom end of the slider is mounted on a mounting frame by a bolt, and the mounting frame is away from the fixing frame. A mounting ring is provided on each group of the mounting rings, and a spray head is mounted on the outer wall of one end of the fixing frame. The output end of the electric telescopic rod passes through the side wall of the fixing frame and is fixedly connected to the slider at the end.

[0008] In order to facilitate adapting to the spacing of each group of spray heads, the utility model has an improvement: a pipe is installed between the fixing frames at one end away from the side wall of the fixing frames, a connecting pipe is installed between the pipe and the medicine box, a plurality of water outlet pipes are provided at the bottom end of the pipe, a universal telescopic tube is provided at the bottom end of the water outlet pipe, and the output end of the universal telescopic tube is connected to the top of the spray head.

[0009] In order to guide the movement of the slider, the utility model is improved in that a sliding rod is provided between the fixing frames at one end close to the side wall of the fixing frames, the sliding rod is slidably connected to several of the sliders and the left and right ends are fixedly connected to the left and right inner side walls of the fixing frames.

[0010] In order to facilitate the replenishment of liquid medicine into the medicine box, the utility model is improved in that a medicine inlet pipe is provided on one side of the upper portion of the medicine box.

[0011] In order to facilitate the addition of liquid medicine, the utility model is improved in that a medicine feeding hopper is provided on the medicine feeding pipe.

[0012] In order to filter the medicine liquid, the utility model is improved in that a filter screen is provided at the bottom end of the medicine inlet hopper.

[0013] In order to prevent foreign matter from entering the medicine box through the medicine feed hopper, the utility model is improved in that a sealing cover is threadedly connected to the top of the medicine feed hopper.

[0014] In order to facilitate the smooth landing of the UAV body, the utility model is improved in that the bottom end of the medicine box is connected to two sets of symmetrically designed racks.

[0015] (3) Beneficial effects

[0016] Compared with the existing technology, the utility model provides a drug spraying mechanism for a plant protection drone, which has the following beneficial effects:

[0017] The drug spraying mechanism of the plant protection UAV is equipped with an adjustment device. The output end of the electric telescopic rod drives the slider. The connecting rod will be opened at equal distances under the drive of the slider. When the connecting rod is opened, the multiple sliders are also opened and adjusted at equal distances under the drive of the adjustment shaft. The spacing between the spray heads can be adjusted according to different crops, and the spraying density can be adjusted, thereby controlling the amount of medicine used on the crops, avoiding excessive or insufficient medicine that will affect the growth of the crops, and thus improving the efficiency and effect of the device on crop spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from the first angle;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model from a second angle;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the present invention after the pipeline and connecting components are hidden;

[0021] Figure 4 For this utility model Figure 3 An enlarged structural diagram of part A.

[0022] In the figure: 1. UAV body; 2. Medicine box; 3. Connecting rod; 4. Fixing frame; 5. Connecting rod; 6. Electric telescopic rod; 7. Rotating shaft; 8. Adjusting shaft; 9. Slider; 10. Mounting frame; 11. Mounting ring; 12. Spraying head; 13. Pipeline; 14. Connecting pipe; 15. Water outlet pipe; 16. Universal telescopic pipe; 17. Sliding rod; 18. Medicine inlet pipe; 19. Medicine inlet hopper; 20. Sealing cover; 21. Frame. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] See also Figure 1-4A drug spraying mechanism for a plant protection drone includes a drone body 1, a medicine box 2, and an adjustment device. The bottom end of the drone body 1 is connected to the medicine box 2, and the lower front end of the medicine box 2 is connected to a U-shaped fixing frame 4 through two groups of connecting rods 3. The adjustment device includes a connecting rod 5 and an electric telescopic rod 6. The fixing frame 4 is scissor-shaped and hinged at one end away from the medicine box 2. A rotating shaft 7 is provided at the center of the several groups of connecting rods 5. The rotating shaft 7 is connected to the side wall of the fixing frame 4. Rotational connection, each two groups of connecting rods 5 are hingedly provided with an adjusting shaft 8 between the upper and lower parts, the adjusting shaft 8 is connected to a slider 9 at one end close to the fixing frame 4, the bottom end of the slider 9 is mounted with a mounting frame 10 by a bolt, the mounting frame 10 is provided with a mounting ring 11 at one end away from the fixing frame 4, and a spray head 12 is installed on each group of the mounting rings 11. The outer wall of one end of the fixing frame 4 is provided with the electric telescopic rod 6, and the output end of the electric telescopic rod 6 passes through the side wall of the fixing frame 4 and the slider 9 at the end. Fixed connection. In this embodiment, the drone body 1 drives the medicine box 2, and the medicine box 2 drives the connected adjustment device and the spray head 12 to spray medicine on crops. When it is necessary to adjust the spacing of the spray heads 12 according to different crops, the electric telescopic rod 6 is started, and the output end of the electric telescopic rod 6 is extended. The output end of the electric telescopic rod 6 drives the slider 9. The connecting rod 5 will be opened at equal distances under the drive of the slider 9. When the connecting rod 5 is opened, the multiple sliders 9 are also opened at equal distances under the drive of the adjustment shaft 8. The position of the rotating shaft 7 is in the center position, and the adjusted spacing is opened with the position of the rotating shaft 7 as the center. The slider 9 drives the mounting frame 10, the mounting frame 10 drives the mounting ring 11, and the mounting ring 11 drives each group of connected spray heads 12, so that the spacing of the spray heads 12 can be adjusted. The spacing of the spray heads 12 can be adjusted according to different crops, and the spraying density can be adjusted, thereby controlling the amount of medicine used on the crops, avoiding excessive or insufficient medicine that will affect the growth of the crops, thereby improving the efficiency and effect of the device in spraying crops.

[0025] In actual use, it is further convenient to adapt to the spacing of each group of spray heads 12. In this embodiment, a pipe 13 is installed between the fixing frame 4 at one end away from the side wall of the fixing frame 4, and a connecting pipe 14 is installed between the pipe 13 and the medicine box 2. The bottom end of the pipe 13 is provided with a plurality of water outlet pipes 15, and the bottom end of the water outlet pipe 15 is provided with a universal telescopic tube 16. The output end of the universal telescopic tube 16 is connected to the top of the spray head 12. When the spacing is adjusted, the spray head 12 drives the universal telescopic tube 16 connected to the top to move and retract its position to avoid the displacement of the pipe 13 caused by movement. The liquid medicine enters the pipe 13 from the medicine box 2 through the connecting pipe 14 through the remote control of the staff, and then flows into each group of water outlet pipes 15 from the pipe 13, and then enters the spray head 12 through each group of universal telescopic tubes 16, and finally is sprayed out by the spray head 12 to realize the spraying work.

[0026] During actual use, it further guides the movement of the slider 9. In this embodiment, a sliding rod 17 is provided between the fixing frames 4 at one end close to the side wall of the fixing frames 4. The sliding rod 17 is slidably connected to several of the sliders 9 and the left and right ends are fixedly connected to the left and right inner walls of the fixing frames 4. When the slider 9 moves, it slides on the sliding rod 17, which guides the movement of the slider 9 and prevents the slider 9 from deviating from the motion trajectory.

[0027] In actual use, in order to further facilitate the replenishment of liquid medicine into the medicine box 2 , in this embodiment, a medicine inlet pipe 18 is provided on one side of the upper portion of the medicine box 2 , and the medicine inlet pipe 18 facilitates the replenishment of liquid medicine into the medicine box 2 .

[0028] In actual use, in order to further facilitate the addition of liquid medicine, in this embodiment, a medicine feed hopper 19 is provided on the medicine feed pipe 18. Through the medicine feed hopper 19, the medicine can be delivered into the medicine feed pipe 18 more quickly and evenly, thereby improving the efficiency of medicine feeding. The medicine feed hopper 19 can better control the delivery of the medicine, reduce the loss of the medicine, and can also more accurately control the dosage of the medicine to ensure the quality of the medicine and the addition effect.

[0029] During actual use, the medicine liquid is further filtered. In this embodiment, a filter is provided at the bottom end of the medicine inlet hopper 19. The filter filters the medicine liquid during the addition process to prevent particulate matter from entering the medicine box 2 and further clogging the spray head 12, thereby improving the spraying efficiency of the spray head 12.

[0030] During actual use, in order to further prevent foreign matter from entering the medicine box 2 through the medicine feed hopper 19, in this embodiment, a sealing cover 20 is threadedly connected to the top of the medicine feed hopper 19, and the sealing cover 20 seals the medicine feed hopper 19 to prevent foreign matter from entering the medicine box 2 through the medicine feed hopper 19.

[0031] During actual use, the drone body 1 is further facilitated to land smoothly. In this embodiment, the bottom end of the medicine box 2 is connected to two sets of symmetrically designed racks 21. The two sets of symmetrically designed racks 21 facilitate maintaining a safe distance between the fuselage and the ground, so that when the drone body 1 takes off or lands not far from the ground, the fuselage tilts due to unstable factors without causing the propeller to collide with the ground, thereby ensuring the safety of the drone.

[0032] In order to explain in detail the possible application scenarios, technical principles, specific solutions that can be implemented, and the purpose and effects of this application, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of this application and are therefore only examples and are not intended to limit the scope of protection of this application.

[0033] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drug spraying mechanism for a plant protection drone, comprising a drone body (1), a drug box (2) and an adjustment device, characterized in that: The bottom end of the drone body (1) is connected to the medicine box (2), and the front lower part of the medicine box (2) is connected to a U-shaped fixed frame (4) through two groups of connecting rods (3). The adjustment device includes a connecting rod (5) and an electric telescopic rod (6). The end of the fixed frame (4) away from the medicine box (2) is scissor-shaped and hingedly connected to a plurality of groups of the connecting rods (5). The most central positions of the plurality of groups of the connecting rods (5) are provided with a rotating shaft (7). The rotating shaft (7) is rotatably connected to the side wall of the fixed frame (4). Each two groups of the connecting rods (5) are hingedly connected at the top and bottom. An adjusting shaft (8) is provided, and the end of the adjusting shaft (8) close to the fixing frame (4) is connected to a slider (9), and the bottom end of the slider (9) is mounted with a mounting frame (10) through a bolt, and the end of the mounting frame (10) away from the fixing frame (4) is provided with a mounting ring (11), and each group of the mounting rings (11) is mounted with a spray head (12), and the outer wall of one end of the fixing frame (4) is provided with the electric telescopic rod (6), and the output end of the electric telescopic rod (6) passes through the side wall of the fixing frame (4) and is fixedly connected to the slider (9) at the end.

2. The drug spraying mechanism of a plant protection drone according to claim 1, characterized in that: A pipe (13) is installed at one end of the fixing frame (4) away from the side wall of the fixing frame (4), a connecting pipe (14) is installed between the pipe (13) and the medicine box (2), a plurality of water outlet pipes (15) are provided at the bottom end of the pipe (13), a universal telescopic pipe (16) is provided at the bottom end of the water outlet pipe (15), and the output end of the universal telescopic pipe (16) is connected to the top end of the spray head (12).

3. The drug spraying mechanism of a plant protection drone according to claim 2, characterized in that: A sliding rod (17) is provided between the fixing frames (4) at one end close to the side wall of the fixing frames (4). The sliding rod (17) is slidably connected to a plurality of the sliders (9) and its left and right ends are fixedly connected to the left and right inner side walls of the fixing frames (4).

4. The drug spraying mechanism of a plant protection drone according to claim 3, characterized in that: A medicine inlet pipe (18) is provided on one side of the upper portion of the medicine box (2).

5. The drug spraying mechanism of a plant protection drone according to claim 4, characterized in that: The medicine feeding pipe (18) is provided with a medicine feeding hopper (19).

6. The drug spraying mechanism of a plant protection drone according to claim 5, characterized in that: The bottom end of the medicine feeding hopper (19) is provided with a filter screen.

7. The drug spraying mechanism of a plant protection drone according to claim 6, characterized in that: The top end of the medicine feeding hopper (19) is threadedly connected with a sealing cover (20).

8. The drug spraying mechanism of a plant protection drone according to claim 7, characterized in that: The bottom end of the medicine box (2) is connected to two sets of symmetrically designed racks (21).

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