A quantitative pesticide application device based on an agricultural unmanned helicopter

Abstract

The utility model discloses a quantitative pesticide application device based on an agricultural unmanned helicopter, and specifically relates to the field of agricultural unmanned helicopters, comprising an unmanned aerial vehicle body, wherein the bottom end of the unmanned aerial vehicle body is fixedly connected with a fixed plate. The utility model controls the lifting and lowering of a piston plate through a servo motor, a rotating rod, a rotating gear, a force-bearing gear, a screw rod and a limit rod. When the piston plate rises, the medicine is sucked into a medicine storage box through a medicine inlet pipe, and a scale allows people to more directly observe the amount of medicine sucked into the medicine storage box. When the piston plate descends, the medicine is applied through a medicine outlet pipe and an atomizing nozzle. The required number of atomizing nozzles can be adjusted through a small rotating motor, a threaded rod, a slider and a slide groove control baffle, thereby the medicine capacity inside the medicine storage box can be quantitatively adjusted according to the area of ​​the crops to be sprayed with medicine, and the number of atomizing nozzles can be adjusted according to the crops of different areas, thereby reducing unnecessary waste of medicine and improving practicality.

Description

Technical Field

[0001] The utility model relates to the field of agricultural unmanned helicopters, and more specifically, to a quantitative pesticide application device based on an agricultural unmanned helicopter. Background Art

[0002] Agricultural drones are modern agricultural machines. Agricultural drones have the functions of land and soil analysis, aerial seeding, spraying operations, crop monitoring, agricultural irrigation and crop health assessment. The wide application of drones in agriculture not only has great economic value, but also has social value. They have super high work efficiency, pose no threat to the safety of human life, save a lot of labor, save agricultural input costs, etc., and ultimately increase the economic benefits of farmers.

[0003] After searching, the existing patent (publication number: 202122253517.X) discloses an agricultural drone cold mist spraying device for fruit tree flight prevention, which relates to the field of cold mist spraying technology. The agricultural drone cold mist spraying device for fruit tree flight prevention includes a drone body, the inner wall of the drone body is provided with a hose, the end of the hose away from the drone body is fixedly connected to a rotor support rod, the outer wall of the drone body is fixedly connected to a card block 1, the outer wall of the card block 1 away from the drone body is provided with a card block 2, the outer wall of the hose is clamped with the inner wall of the card block 1, the outer wall of the rotor support rod is clamped with the inner wall of the card block 2, and the outer wall of the drone body is fixedly connected to a limited block. By bending the hose and the rotor support rod to one side, the rotor support rod is clamped with the outer wall of the limit block, and the rotor support rod and the cold mist spraying device are stored, so that the device is convenient to carry, which solves the problem that the drone and the cold mist spraying device are large in size and inconvenient to carry when unfolded.

[0004] Most existing agricultural unmanned helicopters are operated by filling the liquid tank with pesticides and then moving to a designated location for spraying. However, it is not convenient to quantitatively adjust the volume of the pesticide inside the liquid tank according to the size of the crop area, which reduces the practicality of the device. At the same time, the above-cited patent documents do not propose a relevant solution to solve the problem of quantitatively adjusting the volume of the pesticide in the liquid tank of the unmanned aerial vehicle.

[0005] Therefore, in order to solve the above problems, a quantitative pesticide application device based on an agricultural unmanned helicopter is proposed. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a quantitative pesticide application device based on an agricultural unmanned helicopter to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quantitative pesticide application device based on an agricultural unmanned helicopter, comprising an unmanned aerial vehicle body, a fixed plate fixedly connected to the bottom end of the unmanned aerial vehicle body, a quantitative pesticide application mechanism provided on the side wall of the fixed plate, and the quantitative pesticide application mechanism comprising a connecting plate, a medicine storage box, a rotating rod, a servo motor, a rotating gear, a force-bearing gear, a screw rod, a piston plate, a limiting rod, a medicine inlet pipe, a medicine outlet pipe, a connecting pipe, an atomizing nozzle, a threaded rod, a baffle, a sealing ring, a slide groove, a slider, a small rotating motor, a connecting rod and a scale;

[0008] The bottom end of the connecting plate is fixedly connected to a medicine storage box, a rotating rod passes through the interior of the connecting plate, a servo motor is fixedly connected to one side of the rotating rod, a rotating gear is fixedly connected to the outer wall of the rotating rod, a force-bearing gear is meshed at the bottom end of the rotating gear, a screw rod passing through the interior of the medicine storage box is fixedly connected to the bottom end of the force-bearing gear, a piston plate is threadedly connected to the outer wall of the screw rod, a limiting rod passes through the interior of the piston plate, a medicine inlet pipe is fixedly connected to the bottom end of the medicine storage box, and a medicine outlet pipe is fixedly connected to the bottom end of the medicine storage box and located on the side of the medicine inlet pipe The bottom end of the medicine outlet pipe is fixedly connected with a connecting pipe, the bottom end of the connecting pipe is fixedly connected with an atomizing nozzle, a threaded rod runs through the inside of the connecting pipe, the outer side of the threaded rod is threadedly connected with a baffle, the side of the baffle is fixedly connected with a sealing ring, a sliding groove is opened on the inner wall of the connecting pipe, and sliders slidably connected to the sliding groove are fixedly connected on both sides of the sealing ring, a small rotating motor is fixedly connected to one side of the threaded rod, the outer side of the connecting pipe is fixedly connected with a connecting rod fixedly connected to the bottom end of the medicine storage box, and the side wall of the medicine storage box is fixedly connected with a scale.

[0009] Preferably, a fixing mechanism is arranged inside the fixing plate, and the fixing mechanism comprises a pull rod, a pull plate, a movable block, a fixing rod, a fixing groove, a placement groove and a spring assembly.

[0010] Preferably, a pull rod passes through the interior of the fixed plate, one side of the pull rod is fixedly connected to the pull plate, the side of the pull rod away from the pull plate is fixedly connected to a movable block slidably connected to the inner wall of the fixed plate, the side wall of the movable block is fixedly connected to the fixed rod, fixing grooves are provided on both sides of the connecting plate, the side wall of the fixed plate is provided with a placement groove, and the side wall of the movable block and located on the outside of the pull rod are fixedly connected to a spring assembly.

[0011] Preferably, a one-way stop valve is fixedly connected to the surface of the medicine inlet pipe, and electronic valves are fixedly connected to the surfaces of the medicine outlet pipe and the atomizing nozzle.

[0012] Preferably, the threaded rod is in a positive and negative structure, and two groups of baffles are provided, and the two groups of baffles are symmetrically distributed about the center of the connecting pipe.

[0013] Preferably, the medicine storage box is made of transparent polypropylene, and the piston plate forms a sliding structure between the screw rod and the rotating gear and the outer wall of the limiting rod.

[0014] Preferably, the connecting plate has a T-shaped appearance, and the inner wall of the fixing groove matches the outer wall of the fixing rod.

[0015] Preferably, the movable block forms a sliding structure with the inner wall of the fixed plate through a pull rod and a spring assembly.

[0016] Technical effects and advantages of the utility model:

[0017] 1. Compared with the prior art, the device controls the up and down movement of the piston plate through a servo motor, a rotating rod, a rotating gear, a force gear, a screw rod and a limit rod. The piston plate rises to suck the medicine into the medicine storage box through the medicine inlet pipe, and the scale allows people to more directly observe the amount of medicine sucked into the medicine storage box. The piston plate descends to spray the medicine inside the medicine storage box through the medicine outlet pipe and the atomizing nozzle for spraying. The required number of atomizing nozzles is adjusted by controlling the baffle through a small rotating motor, a threaded rod, a slider and a slide groove, thereby quantitatively adjusting the medicine capacity inside the medicine storage box according to the area of ​​the crops to be sprayed with medicine, and at the same time, the number of atomizing nozzles can be adjusted according to crops of different areas, thereby adjusting the working range of the atomizing nozzle, reducing unnecessary waste of medicine, and improving practicality.

[0018] 2. Compared with the prior art, the device controls the movement of the fixed rod through the pull plate, pull rod, movable block, spring assembly, and fixed plate, inserts the fixed rod into the fixed slot, and fixes the connecting plate and the quantitative spraying mechanism on the drone body, thereby facilitating the disassembly and assembly of the quantitative spraying mechanism and the replacement of large-capacity or ultra-small-capacity quantitative spraying mechanisms. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0020] Figure 2 It is a schematic diagram of the quantitative drug dispensing mechanism of the utility model.

[0021] Figure 3 It is a cross-sectional schematic diagram of the connecting pipe of the utility model.

[0022] Figure 4 It is a schematic diagram of the fixing mechanism of the utility model.

[0023] The accompanying drawings are marked as follows: 1. UAV body; 2. fixing plate; 3. quantitative drug application mechanism; 301. connecting plate; 302. drug storage box; 303. rotating rod; 304. servo motor; 305. rotating gear; 306. force gear; 307. screw rod; 308. piston plate; 309. limit rod; 310. drug inlet pipe; 311. drug outlet pipe; 312. connecting pipe; 313. atomizing nozzle; 314. threaded rod; 315. baffle; 316. sealing ring; 317. slide groove; 318. slider; 319. small rotating motor; 320. connecting rod; 321. scale; 4. fixing mechanism; 401. pull rod; 402. pull plate; 403. movable block; 404. fixing rod; 405. fixing groove; 406. placement groove; 407. spring assembly. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1

[0026] As attached Figures 1 to 3 A quantitative pesticide application device based on an agricultural unmanned helicopter is shown, comprising an unmanned aerial vehicle body 1, a fixed plate 2 is fixedly connected to the bottom end of the unmanned aerial vehicle body 1, a quantitative pesticide application mechanism 3 is arranged on the side wall of the fixed plate 2, and the quantitative pesticide application mechanism 3 comprises a connecting plate 301, a medicine storage box 302, a rotating rod 303, a servo motor 304, a rotating gear 305, a force gear 306, a screw rod 307, a piston plate 308, a limiting rod 309, a medicine inlet pipe 310, a medicine outlet pipe 311, a connecting pipe 312, an atomizing nozzle 313, a threaded rod 314, a baffle 315, a sealing ring 316, a slide groove 317, a slider 318, a small rotating motor 319, a connecting rod 320 and a scale 321;

[0027] The bottom end of the connecting plate 301 is fixedly connected to the medicine storage box 302, a rotating rod 303 is passed through the interior of the connecting plate 301, a servo motor 304 is fixedly connected to one side of the rotating rod 303, a rotating gear 305 is fixedly connected to the outer wall of the rotating rod 303, a force-bearing gear 306 is meshed at the bottom end of the rotating gear 305, a screw rod 307 passing through the interior of the medicine storage box 302 is fixedly connected to the bottom end of the force-bearing gear 306, a piston plate 308 is threadedly connected to the outer wall of the screw rod 307, a limiting rod 309 is passed through the interior of the piston plate 308, a medicine inlet pipe 310 is fixedly connected to the bottom end of the medicine storage box 302, and a medicine outlet pipe 310 is fixedly connected to the bottom end of the medicine storage box 302 and located on the side of the medicine inlet pipe 310 1. The bottom end of the medicine outlet pipe 311 is fixedly connected with a connecting pipe 312, the bottom end of the connecting pipe 312 is fixedly connected with an atomizing nozzle 313, a threaded rod 314 runs through the inside of the connecting pipe 312, the outer side of the threaded rod 314 is threadedly connected with a baffle 315, the side of the baffle 315 is fixedly connected with a sealing ring 316, the inner wall of the connecting pipe 312 is provided with a slide groove 317, both sides of the sealing ring 316 are fixedly connected with sliders 318 slidably connected to the slide groove 317, one side of the threaded rod 314 is fixedly connected with a small rotating motor 319, the outer side of the connecting pipe 312 is fixedly connected with a connecting rod 320 fixedly connected to the bottom end of the medicine storage box 302, and the side wall of the medicine storage box 302 is fixedly connected with a scale 321.

[0028] Among them: the piston plate 308 is moved to the bottom end, and the medicine inlet pipe 310 is connected to the external water pipe and medicine through the door, and then the servo motor 304 drives the rotating rod 303 to rotate, so that it pushes the rotating gear 305 to rotate, and then drives the force-bearing gear 306 and the screw rod 307 to rotate, so that it drives the piston plate 308 to move upward along the outer wall of the limit rod 309, and then the medicine is sucked into the medicine storage box 302 through the medicine inlet pipe 310, and the one-way stop valve is used to prevent the medicine in the medicine storage box 302 from flowing out through the medicine inlet pipe 310. The transparent polypropylene material and the scale 321 of the medicine storage box 302 allow people to more directly observe the amount of medicine sucked into the medicine storage box 302, and then the electronic valve is used to open the medicine outlet pipe 311 and the atomizing nozzle 313, and the servo motor 304 is rotated in the opposite direction. At this time The piston plate 308 will descend and spray the medicine inside the medicine storage box 302 through the medicine outlet pipe 311 and the atomizing nozzle 313 for application. At this time, the threaded rod 314 can be driven to rotate by the small rotating motor 319 to push the two sets of baffles 315 and the slider 318 to move along the trajectory of the slide groove 317, and the required number of atomizing nozzles 313 can be adjusted. The sealing ring 316 plays a sealing role to avoid leakage at the connection between the baffle 315 and the connecting pipe 312. Therefore, the medicine capacity inside the medicine storage box 302 can be quantitatively adjusted according to the area of ​​the crops that need to be sprayed with medicine. At the same time, the number of atomizing nozzles 313 can be adjusted according to crops of different areas, thereby adjusting the working range of the atomizing nozzles 313, reducing unnecessary waste of medicine and improving practicality.

[0029] Embodiment 2

[0030] Based on the first embodiment, the solution in the first embodiment is further detailed in combination with the following specific working methods. Figures 1 to 4As shown, see the following description for details: a fixing mechanism 4 is arranged inside the fixing plate 2, and the fixing mechanism 4 includes a pull rod 401, a pull plate 402, a movable block 403, a fixing rod 404, a fixing slot 405, a placement slot 406 and a spring assembly 407. A pull rod 401 runs through the inside of the fixing plate 2, one side of the pull rod 401 is fixedly connected to the pull plate 402, a side of the pull rod 401 away from the pull plate 402 is fixedly connected to a movable block 403 slidably connected to the inner wall of the fixing plate 2, a side wall of the movable block 403 is fixedly connected to the fixing rod 404, fixing slots 405 are provided on both sides of the connecting plate 301, a placement slot 406 is provided on the side wall of the fixing plate 2, and a spring assembly 407 is fixedly connected to the side wall of the movable block 403 and located on the outside of the pull rod 401; further, pull the fixing plate 301 to both sides. Pull plate 402 so that it drives movable block 403 to compress spring assembly 407 through pull rod 401 and move along the inner wall of fixed plate 2, thereby driving fixed rod 404 to move in the same direction, and moving fixed rod 404 as a whole to the inside of fixed plate 2. Subsequently, align connecting plate 301 with placement slot 406, slide connecting plate 301 into placement slot 406, align fixed slot 405 with fixed rod 404, release pull rod 401 and pull plate 402. At this time, spring assembly 407 will restore elastic force when squeezed, insert fixed rod 404 into fixed slot 405, and fix connecting plate 301 and quantitative drug dispensing mechanism 3 on UAV body 1, so as to facilitate disassembly and assembly of quantitative drug dispensing mechanism 3 and replacement of quantitative drug dispensing mechanism 3 with large capacity or ultra-small capacity.

[0031] As a preferred embodiment, a one-way stop valve is fixedly connected to the surface of the medicine inlet pipe 310, and electronic valves are fixedly connected to the surfaces of the medicine outlet pipe 311 and the atomizing nozzle 313; further, the one-way stop valve is used to prevent the medicine in the medicine storage box 302 from flowing out through the medicine inlet pipe 310, and the electronic valve is used to conveniently open or close the medicine outlet pipe 311 and the atomizing nozzle 313.

[0032] As a preferred embodiment, the threaded rod 314 has a positive and negative structure, and two groups of baffles 315 are provided, and the two groups of baffles 315 are symmetrically distributed about the center of the connecting pipe 312; further, the threaded rod 314 can be rotated to push the two groups of baffles 315 and the slider 318 to move along the trajectory of the slide groove 317, thereby facilitating the adjustment of the number of atomizing nozzles 313 required to be opened.

[0033] As a preferred embodiment, the medicine storage box 302 is made of transparent polypropylene, and the piston plate 308 forms a sliding structure between the screw rod 307 and the rotating gear 305 and the outer wall of the limiting rod 309; further, the medicine storage box 302 is made of transparent polypropylene and the scale 321, so that people can more directly observe the amount of medicine sucked into the medicine storage box 302, and polypropylene has the advantages of light weight, good waterproofness, not easy to deform and easy to clean. The rotating rod 303 rotates, so that it pushes the rotating gear 305 to rotate, and then drives the force gear 306 and the screw rod 307 to rotate, so that it drives the piston plate 308 to move upward along the outer wall of the limiting rod 309, thereby facilitating the medicine to be sucked into the interior of the medicine storage box 302 through the medicine inlet pipe 310.

[0034] As a preferred embodiment, the connecting plate 301 has a "T" shape, and the inner wall of the fixing groove 405 matches the outer wall of the fixing rod 404; further, by setting the connecting plate 301 to be "T" shaped, it is convenient to slide into the placement groove 406, and the fixing rod 404 is inserted into the fixing groove 405 to fix the quantitative dosing mechanism 3. The fixing rod 404 matches the fixing groove 405 to play a role of stable fixation.

[0035] As a preferred embodiment, the movable block 403 forms a sliding structure with the inner wall of the fixed plate 2 through the pull rod 401 and the spring assembly 407; further, the pull plate 402 is pulled to both sides, so that the movable block 403 is driven by the pull rod 401 to compress the spring assembly 407 and move along the inner wall of the fixed plate 2, thereby driving the fixed rod 404 to move in the same direction, thereby facilitating the control of the movement of the fixed rod 404.

[0036] The working process of the utility model is as follows: first, the pull plate 402 needs to be pulled to both sides, so that the pull rod 401 drives the movable block 403 to compress the spring assembly 407, and move along the inner wall of the fixed plate 2, thereby driving the fixed rod 404 to move in the same direction, and the fixed rod 404 is moved as a whole to the inside of the fixed plate 2, then, the connecting plate 301 is aligned with the placement groove 406, and the connecting plate 301 is slid into the placement groove 406, the fixing groove 405 is aligned with the fixing rod 404, and the pull rod 401 and the pull plate 40 2. At this time, the spring assembly 407 will restore its elastic force when it is squeezed, insert the fixing rod 404 into the fixing groove 405, fix the connecting plate 301 and the quantitative drug dispensing mechanism 3 on the drone body 1, then move the piston plate 308 to the bottom, and connect the drug inlet pipe 310 with the external water pipe and the drug through the door, then drive the rotating rod 303 to rotate through the servo motor 304, so that it drives the rotating gear 305 to rotate, and then drives the force gear 306 and the screw rod 307 to rotate, so that it drives the piston plate 308 along The outer wall of the limit rod 309 moves upward, and then the medicine is sucked into the medicine storage box 302 through the medicine inlet pipe 310. The one-way stop valve is used to prevent the medicine in the medicine storage box 302 from flowing out through the medicine inlet pipe 310. The medicine storage box 302 is made of transparent polypropylene material and a scale 321, so that people can more directly observe the amount of medicine sucked into the medicine storage box 302. Then, the medicine outlet pipe 311 and the atomizing nozzle 313 are opened through the electronic valve, and the servo motor 304 is rotated in the opposite direction. At this time, the piston plate 308 will drop to move the medicine storage box The medicine inside 302 is sprayed out through the medicine outlet pipe 311 and the atomizing nozzle 313 for application. At this time, the threaded rod 314 can be driven to rotate by the small rotating motor 319 to push the two sets of baffles 315 and the slider 318 to move along the track of the slide groove 317 to adjust the required number of atomizing nozzles 313. The sealing ring 316 plays a sealing role to avoid leakage at the connection between the baffle 315 and the connecting pipe 312. This is the working principle of the quantitative application device based on the agricultural unmanned helicopter.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A quantitative pesticide application device based on an agricultural unmanned helicopter, comprising an unmanned aerial vehicle body (1), characterized in that: The bottom end of the drone body (1) is fixedly connected to a fixing plate (2), and a side wall of the fixing plate (2) is provided with a quantitative drug dispensing mechanism (3), and the quantitative drug dispensing mechanism (3) comprises a connecting plate (301), a drug storage box (302), a rotating rod (303), a servo motor (304), a rotating gear (305), a force-bearing gear (306), a screw rod (307), a piston plate (308), a limiting rod (309), a drug inlet pipe (310), a drug outlet pipe (311), a connecting pipe (312), an atomizing nozzle (313), a threaded rod (314), a baffle (315), a sealing ring (316), a slide groove (317), a slider (318), a small rotating motor (319), a connecting rod (320) and a scale (321); The bottom end of the connecting plate (301) is fixedly connected to a medicine storage box (302), a rotating rod (303) is passed through the interior of the connecting plate (301), a servo motor (304) is fixedly connected to one side of the rotating rod (303), a rotating gear (305) is fixedly connected to the outer wall of the rotating rod (303), a force-bearing gear (306) is meshed at the bottom end of the rotating gear (305), a screw rod (307) passing through the interior of the medicine storage box (302) is fixedly connected to the bottom end of the force-bearing gear (306), a piston plate (308) is threadedly connected to the outer wall of the screw rod (307), a limiting rod (309) is passed through the interior of the piston plate (308), a medicine inlet pipe (310) is fixedly connected to the bottom end of the medicine storage box (302), and a medicine outlet pipe (311) is fixedly connected to the bottom end of the medicine storage box (302) and located on the side of the medicine inlet pipe (310). The bottom end of the medicine outlet pipe (311) is fixedly connected to a connecting pipe (312), the bottom end of the connecting pipe (312) is fixedly connected to an atomizing nozzle (313), a threaded rod (314) runs through the inside of the connecting pipe (312), the outer side of the threaded rod (314) is threadedly connected to a baffle (315), the side of the baffle (315) is fixedly connected to a sealing ring (316), a sliding groove (317) is provided on the inner wall of the connecting pipe (312), both sides of the sealing ring (316) are fixedly connected to sliders (318) slidably connected to the sliding groove (317), one side of the threaded rod (314) is fixedly connected to a small rotating motor (319), the outer side of the connecting pipe (312) is fixedly connected to a connecting rod (320) fixedly connected to the bottom end of the medicine storage box (302), and the side wall of the medicine storage box (302) is fixedly connected to a scale (321).

2. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 1, characterized in that: A fixing mechanism (4) is arranged inside the fixing plate (2), and the fixing mechanism (4) comprises a pull rod (401), a pull plate (402), a movable block (403), a fixing rod (404), a fixing groove (405), a placement groove (406) and a spring assembly (407).

3. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 2, characterized in that: A pull rod (401) passes through the interior of the fixed plate (2), one side of the pull rod (401) is fixedly connected to a pull plate (402), a side of the pull rod (401) away from the pull plate (402) is fixedly connected to a movable block (403) slidably connected to the inner wall of the fixed plate (2), the side wall of the movable block (403) is fixedly connected to a fixed rod (404), both sides of the connecting plate (301) are provided with fixing grooves (405), the side wall of the fixed plate (2) is provided with a placement groove (406), and the side wall of the movable block (403) and located on the outside of the pull rod (401) is fixedly connected to a spring assembly (407).

4. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 1, characterized in that: A one-way stop valve is fixedly connected to the surface of the medicine inlet pipe (310), and electronic valves are fixedly connected to the surfaces of the medicine outlet pipe (311) and the atomizing nozzle (313).

5. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 1, characterized in that: The threaded rod (314) has a positive and negative structure, and two groups of baffles (315) are provided, and the two groups of baffles (315) are symmetrically distributed about the center of the connecting pipe (312).

6. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 1, characterized in that: The medicine storage box (302) is made of transparent polypropylene material, and the piston plate (308) forms a sliding structure between the screw rod (307) and the rotating gear (305) and the outer wall of the limiting rod (309).

7. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 3, characterized in that: The connecting plate (301) has a T-shaped appearance, and the inner wall of the fixing groove (405) matches the outer wall of the fixing rod (404).

8. The quantitative pesticide application device based on an agricultural unmanned helicopter according to claim 3, characterized in that: The movable block (403) forms a sliding structure with the inner wall of the fixed plate (2) through the pull rod (401) and the spring assembly (407).

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