Unmanned aerial vehicle pesticide spraying device for agricultural planting

Abstract

The invention discloses an agricultural planting unmanned aerial vehicle pesticide spraying device which comprises a rack, a stabilizing frame is fixedly connected to the interior of the rack, a disc is fixedly connected to the side portion of the stabilizing frame, a fixed gear disc is fixedly connected to the lower portion of the disc, a first rotating block is rotationally connected to the upper portion of the disc, and a second rotating block is in transmission connection with the first rotating block. A first threaded rod is arranged below the second rotating block and is in threaded connection with a clamping block, a side frame is arranged on the side portion of the clamping block, the bottom of the first rotating block is fixedly connected with a connecting column, the connecting column is sleeved with a second annular sleeve, the side portion of the second annular sleeve is fixedly connected with a supporting rod, and the other end of the supporting rod is fixedly connected with a first annular sleeve. Through the stirring box and an internal linkage stirring device, for example, a first rotating block drives a second rotating block to enable the stirring box to move up and down, and meanwhile, a connecting column, a second circular sleeve, a supporting rod, a first circular sleeve, a connecting rod and a connecting brush are driven to do circular motion along the inner wall of the stirring box, so that all-directional and efficient stirring of pesticide is realized.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and in particular to an unmanned aerial vehicle spraying device for agricultural planting. Background Art

[0002] In the field of agricultural production, pest control has always been a key link in ensuring the yield and quality of crops. In recent years, the rapid development of drone technology has brought new solutions to agricultural spraying operations. Drones have the advantages of strong maneuverability, high flexibility, and no terrain restrictions. They can quickly and efficiently cross farmland and realize large-scale spraying operations. Equipped with advanced navigation systems and intelligent control systems, drones can fly autonomously and spray accurately according to preset routes and parameters, effectively improving the utilization rate and prevention and control effects of pesticides and reducing the pollution of pesticides to the environment. In addition, the use of drones can greatly reduce the labor intensity of farmers, improve the automation level and modernization of agricultural production, and conform to the trend of sustainable development of agriculture.

[0003] After searching, the Chinese patent number CN111657250A discloses a drone spraying device for agricultural planting, including a drone body, a symmetrically arranged rotor fixedly installed on the top of the drone body, legs fixedly installed on both sides of the bottom of the drone body, a chassis arranged between the two legs, a symmetrically arranged support rod fixedly installed on the top of the chassis, a cross plate fixedly installed on the top of the support rod, and a stabilizing sleeve fixedly installed on both sides of the top of the cross plate. The present invention drives the pipe to rotate through the driving assembly, so that the spray head moves in a circle along the inner wall of the circular groove, which is conducive to expanding the spraying range of the device, reducing the spraying time, and thus improving the spraying efficiency. There is no need to add additional planning navigation routes, reducing the burden of drone endurance and flight, and has broad market prospects and is conducive to agricultural planting promotion.

[0004] During the use of the above-mentioned device, when spraying pesticides, it is inconvenient to stir the sprayed liquid inside, and stratification and precipitation are likely to occur, resulting in a deterioration in the spraying effect. Therefore, a drone spraying device for agricultural planting is proposed. Summary of the invention

[0005] In view of the problems in the related technology, the present invention proposes an agricultural planting drone spraying device to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] An agricultural drone spraying device for planting, comprising a frame. Inside the frame, a stabilizing frame is fixedly connected. On the side of the stabilizing frame, a disc is fixedly connected. Below the disc, a fixed gear disc is fixedly connected. Above the disc, a first rotating block is rotatably connected. The first rotating block is drivingly connected to a second rotating block. Below the second rotating block, a first threaded rod is provided. The first threaded rod is threadedly connected to a clamping block. On the side of the clamping block, a side frame is provided. At the bottom of the first rotating block, a connecting column is fixedly connected. Outside the connecting column, a second circular sleeve is sleeved. On the side of the second circular sleeve, a support rod is fixedly connected. The other end of the support rod is fixedly connected to a first circular sleeve. The first circular sleeve is rotatably connected to a connecting rod. At one end of the connecting rod, an external transmission gear is provided. Outside the connecting rod, a rotating ball is sleeved. The rotating ball is rotatably connected to an adapter block. On the side of the connecting rod, a connecting brush is provided. On the side of the side frame, a clamping mechanism for fixing the mixing tank is provided. The clamping mechanism is used for clamping mixing tanks of different volumes.

[0008] The above technical solution further includes:

[0009] At the bottom of the frame, legs are fixedly connected. On the side of the legs, a pull rod is provided. One end of the pull rod is connected to a sprayer. The side of the sprayer is fixedly connected to the legs.

[0010] The clamping mechanism includes a second threaded rod provided on the side of the legs. Outside the second threaded rod, a first clamping frame is provided. On the side of the second threaded rod away from the first clamping frame, a second clamping frame is provided. The second clamping frame is threadedly connected to the first clamping frame.

[0011] Below the first threaded rod, a base is rotatably connected. The base is fixed on the side of the legs. The legs are slidably connected to the first clamping frame and the second clamping frame. The mixing tank is slidably connected to the first clamping frame and the second clamping frame.

[0012] Above the frame, a control box is provided. Above the frame, multiple wings for adjusting its height are provided.

[0013] On the side of the connecting rod, an adjustment knob is provided. The adjustment knob is used to control the length of the connecting brush exposed outside the connecting rod. It is installed on the side of the connecting rod and is used to control the length of the connecting brush exposed outside the connecting rod, so as to adjust the mixing range and position of the connecting brush inside the mixing tank. By adjusting the adjustment knob, the connecting brush can be made closer to the inner wall or bottom of the mixing tank to adapt to mixing tanks of different heights and volumes as well as pesticide solutions of different concentrations and viscosities, ensuring sufficient mixing of the pesticide solution in the mixing tank, improving the mixing effect and the uniformity of the pesticide solution, and thus guaranteeing the spraying quality.

[0014] The first rotating block is drivingly connected with a transmission belt, and the transmission belt is drivingly connected with a second rotating block. Connecting the first rotating block and the second rotating block, it plays a role in transmitting power, effectively transmitting the rotational energy of the first rotating block to the second rotating block, enabling the second rotating block to rotate in a predetermined manner, thereby driving the threaded rod to rotate and realizing the up-and-down movement and stirring function of the stirring box. The transmission belt has certain elasticity and buffering ability, can reduce the impact and vibration during power transmission to a certain extent, protect related components, and is also convenient for installation and maintenance, ensuring the stability and reliability of power transmission.

[0015] A stabilizing frame is fixedly connected to the side of the connecting block, and a cavity for the rolling of the rotating ball is arranged inside the connecting block.

[0016] A plurality of sprayers for spraying liquid medicine are arranged on the side of the support leg. Small holes for spraying liquid medicine are arranged on the surface of the sprayer. It is the execution component for pesticide spraying. The small holes on its surface can disperse the pesticide solution in the medicine box into fine mist droplets and evenly spray them on the crops. By controlling the opening and closing of the sprayer and the size and spraying range of the mist droplets, precise pesticide application can be carried out according to the type, growth stage and pest and disease situation of the crops, improving the utilization efficiency of pesticides, reducing waste and environmental pollution, and at the same time ensuring the pest and disease control effect.

[0017] Threads for the approach of the first clamping frame and the second clamping frame are arranged on the surface of the second threaded rod.

[0018] The present invention has the following beneficial effects:

[0019] 1. In the present invention, through the stirring box and the internal linkage stirring device, such as the first rotating block driving the second rotating block to move the stirring box up and down, and at the same time driving the connecting column, the second circular sleeve, the support rod, the first circular sleeve, the connecting rod and the connecting brush to move in a circular motion along the inner wall of the stirring box, all-round and efficient stirring of pesticides is realized. This effectively avoids the problem of liquid medicine stratification and precipitation, ensures that the components of the liquid medicine ejected each time are uniform, enables the pesticide to evenly cover the surface of the crops, greatly improves the pest and disease control effect, reduces the repeated occurrence of pests and diseases caused by uneven spraying, and guarantees the healthy growth and stable yield of the crops.

[0020] 2. In the present invention, since the device can always keep the pesticides in a uniformly mixed state, during the spraying process, there will be no waste of pesticides caused by the non-ejection of some precipitated components, ensuring the full utilization of pesticides and reducing the agricultural production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic structural diagram of an unmanned aerial vehicle pesticide spraying device for agricultural planting proposed by the present invention;

[0022] Figure 2It is a top - view structural schematic diagram of a drone spraying device for agricultural planting in the present invention;

[0023] Figure 3 It is a structural schematic diagram of a stirring mechanism of a drone spraying device for agricultural planting in the present invention;

[0024] Figure 4 It is Figure 1 The enlarged schematic diagram at position A in

[0025] Figure 5 It is a bottom - view structural schematic diagram of a drone spraying device for agricultural planting in the present invention;

[0026] Figure 6 It is a partial - view structural schematic diagram of a drone spraying device for agricultural planting in the present invention;

[0027] Figure 7 It is Figure 6 The enlarged schematic diagram at position B in

[0028] In the figure: 1, frame; 2, wing; 3, control box; 4, leg; 5, pull rod; 6, sprayer; 7, stabilizing frame; 8, first rotating block; 9, transmission belt; 10, second rotating block; 11, first threaded rod; 12, side frame; 13, clamping block; 14, connecting block; 15, rotating ball; 16, connecting rod; 17, adjusting knob; 18, connecting brush; 19, disc; 20, fixed gear disc; 21, external transmission gear; 22, support rod; 23, first circular sleeve; 24, connecting column; 25, second circular sleeve; 26, mixing box; 27, first clamping frame; 28, second clamping frame; 29, second threaded rod; 30, base. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] Please refer to Figures 1-7As shown in the figure, the present invention is an unmanned aerial vehicle spraying device for agricultural planting, including a frame 1. Inside the frame 1, a stabilizing frame 7 is fixedly connected. On the side of the stabilizing frame 7, a disc 19 is fixedly connected. Below the disc 19, a fixed gear disc 20 is fixedly connected. Above the disc 19, a first rotating block 8 is rotatably connected. The first rotating block 8 is drivingly connected to a second rotating block 10. Below the second rotating block 10, a first threaded rod 11 is provided. The first threaded rod 11 is threadedly connected to a clamping block 13. On the side of the clamping block 13, a side frame 12 is provided. At the bottom of the first rotating block 8, a connecting column 24 is fixedly connected. Outside the connecting column 24, a second circular ring sleeve 25 is sleeved. On the side of the second circular ring sleeve 25, a support rod 22 is fixedly connected. The other end of the support rod 22 is fixedly connected to a first circular ring sleeve 23. The first circular ring sleeve 23 is rotatably connected to a connecting rod 16. At one end of the connecting rod 16, an external transmission gear 21 is provided. Outside the connecting rod 16, a rotating ball 15 is sleeved. The rotating ball 15 is rotatably connected to an adapter block 14. On the side of the connecting rod 16, a connecting brush 18 is provided. On the side of the side frame 12, a clamping mechanism for fixing the mixing tank 26 is provided, and the clamping mechanism is used for clamping mixing tanks 26 of different volumes.

[0031] In one embodiment, for the above-mentioned frame 1, legs 4 are fixedly connected to the bottom of the frame 1. On the side of the legs 4, a pull rod 5 is provided. One end of the pull rod 5 is connected to a sprayer 6, and the side of the sprayer 6 is fixedly connected to the legs 4.

[0032] In this embodiment, as the main support structure of the entire unmanned aerial vehicle spraying device, it bears all other components, provides a stable physical framework for the device, ensures the relative positions of all components are stable during flight and operation, enables the entire device to work together, and completes the pesticide spraying task.

[0033] In one embodiment, for the above-mentioned clamping mechanism, the clamping mechanism includes a second threaded rod 29 provided on the side of the legs 4. Outside the second threaded rod 29, a first clamping frame 27 is provided. On the side of the second threaded rod 29 away from the first clamping frame 27, a second clamping frame 28 is provided. The second clamping frame 28 is threadedly connected to the first clamping frame 27.

[0034] In one embodiment, for the above-mentioned first threaded rod 11, a base 30 is rotatably connected below the first threaded rod 11. The base 30 is fixed to the side of the legs 4. The legs 4 are slidably connected to the first clamping frame 27 and the second clamping frame 28. The mixing tank 26 is slidably connected to the first clamping frame 27 and the second clamping frame 28.

[0035] In this embodiment, the first threaded rod 11 cooperates with the clamping block 13, and the rotational motion is converted into linear motion through threaded connection. When the threaded rod 11 rotates, the clamping block 13 will slide up and down along the side frame 12, thereby driving the mixing tank 26 to move up and down, realizing the mixing of the upper and lower layers of the pesticide solution in the mixing tank, preventing the solution from stratifying, ensuring the uniformity of the pesticide, and improving the spraying effect of the pesticide and the control effect on pests and diseases.

[0036] In one embodiment, for the above control box 3, a control box 3 is provided above the frame 1, and multiple groups of wings 2 for adjusting its height are provided above the frame 1.

[0037] In this embodiment, the control box 3 is responsible for receiving instructions from ground operators and converting these instructions into control signals for each component of the unmanned aerial vehicle. It integrates multiple functional modules such as a flight control system and a spraying control system, and can precisely control operations such as the rotation of the wings, the stirring action of the mixing tank, the opening and closing of the sprayer, and the spraying amount of the pesticide, ensuring the automation and precision of the entire spraying process.

[0038] In one embodiment, for the above connecting rod 16, an adjustment knob 17 is provided on the side of the connecting rod 16, and the adjustment knob 17 is used to control the length of the connecting brush 18 exposed outside the connecting rod 16.

[0039] In this embodiment, the connecting rod 16 connects the first circular ring sleeve 23, the rotating ball 15, the external transmission gear 21, and the connecting brush 18, playing a role in transmitting power and supporting the connecting brush 18. When the first circular ring sleeve 23 rotates, the power is transmitted to the external transmission gear 21 through the connecting rod 16, causing it to mesh and rotate with the fixed gear disk 20, and at the same time driving the connecting brush 18 to perform a circular motion in the mixing tank 26, realizing the mixing of the pesticide solution. In addition, the connecting rod 16 also provides an installation position for the adjustment knob 17. Through the adjustment knob 17, the position of the connecting brush 18 on the connecting rod 16 can be controlled, thereby adjusting the mixing effect of the connecting brush 18 on different positions inside the mixing tank 26 to meet the mixing requirements in different situations.

[0040] In one embodiment, for the above first rotating block 8, a transmission belt 9 is drivingly connected to the first rotating block 8, and a second rotating block 10 is drivingly connected to the transmission belt 9.

[0041] In this embodiment, the first rotating block 8 is one of the power input components for the mixing action of the mixing tank. Its rotation can drive a series of transmission components such as the transmission belt 9 and the second rotating block 10 to move, thereby realizing the up and down movement of the mixing tank 26 and the circular motion of the internal connecting brush 18, enabling the pesticide solution in the mixing tank to be fully mixed, avoiding stratification and precipitation, ensuring the uniformity of the pesticide solution, and thus ensuring that the concentration and composition of the pesticide sprayed each time are consistent, improving the spraying effect and control effect.

[0042] In one embodiment, for the above-mentioned connecting block 14, a stabilizing frame 7 is fixedly connected to the side of the connecting block 14, and a cavity for the rolling of the rotating ball 15 is provided inside the connecting block 14.

[0043] In this embodiment, the connecting block 14 provides rotational support and guidance for the rotating ball 15. The cavity structure inside it allows the rotating ball 15 to freely roll therein, so that the connecting rod 16 can flexibly rotate within a certain range. This design enables the connecting brush 18 to perform a circular motion in the mixing tank 26, achieving sufficient mixing of the inner wall of the mixing tank and the internal solution, and ensuring the uniform mixing of the pesticide solution. At the same time, the fixed connection between the connecting block 14 and the stabilizing frame 7 also guarantees the stability and reliability of the entire mixing drive mechanism, ensuring that during the flight and spraying operation of the unmanned aerial vehicle, the mixing action can be carried out continuously and stably.

[0044] In one embodiment, for the above-mentioned leg 4, multiple groups of sprayers 6 for spraying liquid medicine are provided on the side of the leg 4, and small holes for spraying liquid medicine are provided on the surface of the sprayer 6.

[0045] In this embodiment, the leg 4 plays a supporting role when the unmanned aerial vehicle lands and parks, protecting the frame and other components from ground collision and damage. At the same time, components related to the spraying operation, such as a pull rod, a sprayer, and a clamping mechanism, are also installed on the leg, providing a stable installation foundation for these components, ensuring that they can work properly during flight and operation, and helping to maintain the center of gravity balance of the entire device, ensuring the stability of flight.

[0046] In one embodiment, for the above-mentioned second threaded rod 29, threads for the approach of the first clamping frame 27 and the second clamping frame 28 are provided on the surface of the second threaded rod 29.

[0047] In this embodiment, the second threaded rod 29 serves as a power component of the clamping mechanism. Through the threads on its surface, it cooperates with the first clamping frame 27 and the second clamping frame 28 to realize the relative movement of the two clamping frames, thereby clamping and fixing the mixing tank 26. The rotation of the threaded rod 29 can be achieved by manual operation or electric control. Its design needs to ensure the accuracy and strength of the threads to ensure that the clamping mechanism can reliably fix the mixing tank 26 and can withstand various forces during the flight and operation of the unmanned aerial vehicle, preventing the mixing tank 26 from loosening or falling off, and ensuring the safety and stability of the spraying operation.

[0048] The working principle of a drone spraying device for agricultural planting in the present invention is that agricultural planting personnel rotate the threaded rod 29 by controlling the control box 3, so that the first clamping bracket 27 and the second clamping bracket 28 at both ends of the threaded rod 29 approach each other, thereby fixing the mixing tank 26 to be sprayed above the base 30. Then the threaded rod 29 continues to rotate. At this time, the first clamping bracket 27 and the second clamping bracket 28 will clamp the mixing tank 26, thereby preventing the subsequent shaking of the mixing tank 26 and the phenomenon of liquid medicine spilling.

[0049] Then agricultural planting personnel use the ground control to control the control box 3, and then further control the rotation of multiple groups of wings 2, so that the frame 1 is suspended at an appropriate height for farmland spraying. Then at this time, the first rotating block 8 fixed inside the frame 1 rotates, and then the first rotating block 8 drives the second rotating block 10 to rotate through the transmission belt 9. The rotation of the second rotating block 10 will cause the mixing tank 26 fixed to the side of the clamping block 13 to move up and down along the threaded rod 11.

[0050] At the same time, the rotation of the first rotating block 8 will drive the connecting column 24 fixed below the disc 19 to rotate. The rotation of the connecting column 24 will cause the second circular ring sleeve 25 sleeved on its surface to rotate. The rotation of the second circular ring sleeve 25 drives the support rod 22 to rotate. The first circular ring sleeve 23 fixed on one side of the support rod 22 will drive its connecting rod 16 to rotate. The external transmission gear 21 fixed on one side of the connecting rod 16 meshes with the fixed gear disk 20. A rotating ball 15 is sleeved outside the connecting rod 16, and the rotating ball 15 will slide on the connecting block 14 fixed on the side of the stable frame 7, so that the connecting brush 18 fixed on the side of the connecting rod 16 moves in a circular motion along the inner wall of the mixing tank 26. While rotating, the mixing tank 26 moves up and down, so as to uniformly stir the upper and lower layers of the mixing tank 26, prevent stratification, make the stirring uniform, and finally spray it out by the sprayer 6, thereby realizing the spraying of the drone.

[0051] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drone spraying device for agricultural planting, characterized in that: The invention comprises a frame (1), wherein a stabilizing frame (7) is fixedly connected inside the frame (1), a disc (19) is fixedly connected to the side of the stabilizing frame (7), a fixed gear disc (20) is fixedly connected below the disc (19), a first rotating block (8) is rotatably connected above the disc (19), the first rotating block (8) is transmission-connected to a second rotating block (10), a first threaded rod (11) is arranged below the second rotating block (10), the first threaded rod (11) is threadedly connected to a clamping block (13), a side frame (12) is arranged on the side of the clamping block (13), a connecting column (24) is fixedly connected to the bottom of the first rotating block (8), and a second circular ring is sleeved on the outside of the connecting column (24). A sleeve (25), the second annular sleeve (25) is fixedly connected to a support rod (22) on its side, the other end of the support rod (22) is fixedly connected to a first annular sleeve (23), the first annular sleeve (23) is rotatably connected to a connecting rod (16), one end of the connecting rod (16) is provided with an external transmission gear (21), a rotating ball (15) is sleeved on the outside of the connecting rod (16), the rotating ball (15) is rotatably connected to a connecting block (14), a connecting brush (18) is provided on the side of the connecting rod (16), and a clamping mechanism for fixing a mixing box (26) is provided on the side of the side frame (12), the clamping mechanism is used to clamp mixing boxes (26) of different volumes; When spraying liquid medicine, the first rotating block (8) drives the second rotating block (10) to rotate, the second rotating block (10) drives the first threaded rod (11) to rotate, the first threaded rod (11) is threadedly connected to the clamping block (13), the first threaded rod (11) rotates, the clamping block (13) slides up and down along the side frame (12), the mixing box (26) fixed on the side of the clamping block (13) moves up and down, the first rotating block (8) rotates to drive the connecting column (24) to rotate, the connecting column (24) drives the second annular sleeve (25) to rotate, and the second annular sleeve (25) drives the connecting column (26) fixed on the support The first annular sleeve (23) on the side of the support rod (22) rotates, and the first annular sleeve (23) drives the connecting rod (16) to rotate. The outer transmission gear (21) fixed on one side of the connecting rod (16) meshes with the fixed gear plate (20), and the rotating ball (15) sleeved on the outside of the connecting rod (16) rotates inside the connecting block (14). The connecting brush (18) fixed on one side of the connecting rod (16) rotates in a circular motion inside the stirring box (26), and the stirring box (26) moves up and down. The connecting brush (18) stirs the inside of the stirring box (26) up and down.

2. The agricultural planting drone spraying device according to claim 1, characterized in that: The bottom of the frame (1) is fixedly connected to a support leg (4), a pull rod (5) is provided on the side of the support leg (4), one end of the pull rod (5) is connected to a sprayer (6), and the side of the sprayer (6) is fixedly connected to the support leg (4).

3. The agricultural planting drone spraying device according to claim 2, characterized in that: The clamping mechanism comprises a second threaded rod (29) arranged on the side of the support leg (4); a first clamping frame (27) is arranged outside the second threaded rod (29); a second clamping frame (28) is arranged on the side of the second threaded rod (29) away from the first clamping frame (27); and the second clamping frame (28) is threadedly connected to the first clamping frame (27).

4. The agricultural planting drone spraying device according to claim 1, characterized in that: A base (30) is rotatably connected below the first threaded rod (11), and the base (30) is fixed to the side of the support leg (4). The support leg (4) is slidably connected to a first clamping frame (27) and a second clamping frame (28), and the mixing box (26) is slidably connected to the first clamping frame (27) and the second clamping frame (28).

5. The agricultural planting drone spraying device according to claim 1, characterized in that: A control box (3) is arranged above the frame (1), and a plurality of groups of wings (2) for adjusting the height thereof are arranged above the frame (1).

6. The agricultural planting drone spraying device according to claim 1, characterized in that: The side of the connecting rod (16) is provided with an adjusting button (17), and the adjusting button (17) is used to control the length of the connecting brush (18) exposed outside the connecting rod (16).

7. The agricultural planting drone spraying device according to claim 1, characterized in that: The first rotating block (8) is drivingly connected to a transmission belt (9), and the transmission belt (9) is drivingly connected to a second rotating block (10).

8. The agricultural planting drone spraying device according to claim 1, characterized in that: The side of the connection block (14) is fixedly connected with a stabilizing frame (7), and a cavity for the rotating ball (15) to roll is arranged inside the connection block (14).

9. The agricultural planting drone spraying device according to claim 2, characterized in that: The side of the supporting leg (4) is provided with a plurality of sprayers (6) for spraying liquid medicine, and the surface of the sprayer (6) is provided with small holes for spraying liquid medicine.

10. The agricultural planting drone spraying device according to claim 3, characterized in that: The surface of the second threaded rod (29) is provided with threads for bringing the first clamping frame (27) and the second clamping frame (28) closer together.

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