Pesticide spraying unmanned aerial vehicle with multiple spraying heads

Abstract

The invention provides a pesticide spraying unmanned aerial vehicle with multiple spraying heads, and relates to the technical field of unmanned aerial vehicles. The pesticide spraying unmanned aerial vehicle with the multiple spraying heads comprises an upper vehicle body, a lower vehicle body, four first spraying mechanisms and four second spraying mechanisms, a base is fixedly arranged at the midpoint of the interior of the lower vehicle body, threaded rods are rotatably arranged at the midpoints of the two sides of the inner wall of the base, and guide rods are fixedly arranged at the rear ends of the threaded rods; the outer wall of the threaded rod is sleeved with a linkage plate in a threaded mode, the linkage plate is slidably connected to the guide rod in a sleeving mode, a linkage rod is fixedly arranged on one side of the lower end face of the linkage plate, and a second toothed push block is fixedly arranged at the end, away from the linkage plate, of the linkage rod. By designing two groups of spraying mechanisms, the two groups of spraying mechanisms can complete up-down staggered clamping spraying, spiral-like spraying and crossed spraying modes according to requirements, the requirements of different spraying scenes are met, the functionality is higher, and use is more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a pesticide spreading unmanned aerial vehicle with multiple spray heads. Background Art

[0002] Pesticide spreading drones are also called plant protection drones or unmanned aerial vehicles. As the name suggests, they are unmanned aircraft used for agricultural and forestry plant protection operations. The drone consists of three parts: a flight platform (fixed-wing, helicopter, multi-axis aircraft), a navigation flight control, and a spraying mechanism. Spraying operations are achieved through ground remote control or navigation flight control. It can spray pesticides, seeds, powders, etc. Pesticide spreading drones have the advantages of low operating altitude, less drift, and can hover in the air. No dedicated take-off and landing airport is required. Spraying workers avoid the risk of exposure to pesticides and improve the safety of spraying operations. Compared with oil-powered drones, electric drones have a small overall size, light weight, lower depreciation rate, low unit operating labor cost, and easy maintenance.

[0003] At present, the pesticide spreading drones on the market are generally equipped with different types of nozzles according to the different crops to be sprayed. For some large-scale evenly planted rice fields and other environments, a downward spraying method is generally adopted. For some fruit trees, in order to ensure the spraying effect of individual fruit trees, a single-point spraying method is generally adopted with a nozzle that can be extended into the branches and vines of the fruit trees. Due to the fixed installation position of the nozzle of the existing pesticide spreading drone, it is impossible to quickly adjust and use it. At the same time, although the existing pesticide spreading drones have some functions that can adjust the nozzle angle, they cannot change the spraying shape, and it is difficult to quickly adjust and use it according to the needs of the scene. Summary of the invention

[0004] To achieve the above purpose, the present invention is implemented through the following technical solutions: a pesticide spreading drone with multiple spray heads, comprising an upper body, a lower body, four No. 1 spraying mechanisms and four No. 2 spraying mechanisms, a base is fixedly arranged at the midpoint position inside the lower body, threaded rods are rotatably arranged at the midpoints of both sides of the inner wall of the base, and guide rods are fixedly arranged at the rear end position of the threaded rods, a linkage plate is threadedly sleeved on the outer wall of the threaded rod, and the linkage plate is slidably sleeved on the guide rod, a linkage rod is fixedly arranged on one side of the lower end surface of the linkage plate, and a No. 2 toothed push block is fixedly arranged at one end of the linkage rod away from the linkage plate, a servo motor is fixedly arranged at the midpoint of the front end of the upper end surface of the base, a screw is fixedly arranged at the output end of the servo motor, and a worm is fixedly sleeved at the midpoint of the outer side of the screw, wherein a No. 1 toothed push block is threadedly sleeved at one end of the screw away from the servo motor; The No. 1 spraying mechanism comprises a spraying main body plate, a connecting plate is fixedly provided at one end of the spraying main body plate, a No. 1 connecting column is fixedly provided at one end of the connecting plate away from the spraying main body plate, and the No. 1 connecting column is rotatably provided on the top surface of the inner wall of the lower body, a No. 1 gear is fixedly sleeved at the lower end of the No. 1 connecting column, a driving assembly is fixedly provided inside the end of the spraying main body plate away from the connecting plate, and the driving assembly comprises a No. 1 micro motor and a driving shaft, wherein a rotating block is fixedly sleeved at the upper end of the driving shaft, a driving gear is rotatably provided at one side of the rotating block, and a linkage gear is provided at the lower end of the driving gear through a rotating shaft rotatably installed, and at the same time, auxiliary spraying plates are fixedly connected to both sides of the outer wall of the rotating shaft; The lower end surface of the base is rotatably provided with four No. 2 connecting columns, and the lower ends of the four No. 2 connecting columns are respectively fixedly connected to four No. 2 spraying mechanisms, wherein the upper ends of the No. 2 spraying mechanisms on the four No. 2 connecting columns are fixedly sleeved with No. 2 gears.

[0005] Preferably, the outer wall of the upper fuselage is provided with four wings for take-off drive, and slide grooves are provided at the front and rear ends of the upper end face and both sides of the lower end face of the lower fuselage, and the four No. 1 spraying mechanisms are slidably arranged in groups of two, respectively, inside the two slide grooves located at the upper ends of the four slide grooves, and the four No. 2 spraying mechanisms are slidably arranged in groups of two, respectively, inside the two slide grooves located at the lower ends of the four slide grooves.

[0006] Preferably, the upper body includes an outer shell and a storage box embedded in the inner part of the outer shell, wherein a pump body and a guide pipe are also provided at the bottom end of the inner part of the outer shell, one end of the guide pipe is connected to the pump body and a plurality of interfaces are provided on the guide pipe, a liquid inlet pipe is fixedly provided on the lower end surface of the connecting plate and one side of the outer wall of the No. 2 spraying mechanism, the liquid inlet pipe located at the lower end of the connecting plate passes through the interior of the spraying main body plate, and a plurality of the liquid inlet pipes are respectively connected to a plurality of interfaces.

[0007] Preferably, a plurality of atomizing nozzles are fixedly provided on the lower end surface of the spray main body plate and the lower end surface of the second spray mechanism, and the atomizing nozzles are connected to the liquid inlet pipe.

[0008] Preferably, two No. 1 gears located at the rear end of the four No. 1 gears are respectively meshed with the teeth on both sides of the outer wall of the No. 1 toothed push block, two No. 1 gears located in the same longitudinal direction of the four No. 1 gears are meshed with each other, the worm is meshed with the worm wheel, and the lower end of the No. 1 toothed push block and the upper end of the No. 2 toothed push block are both provided with guide blocks for limiting their rotation, and the two guide blocks are respectively located on the upper end surface and the lower end surface of the base for sliding.

[0009] Preferably, two of the four second gears in the same transverse direction are meshed with each other, and two of the four second gears in the longitudinal direction close to the second toothed push block are respectively meshed with the teeth on the front and rear sides of the outer wall of the second toothed push block.

[0010] Preferably, a connecting pipe is installed on one side of the lower end of the auxiliary spray plate close to the rotating block and the connecting pipe is connected to the liquid inlet pipe, and a plurality of atomizing nozzles are installed on the lower end of the auxiliary spray plate and the atomizing nozzles are connected to the connecting pipe.

[0011] Preferably, a connecting shaft is fixedly arranged at the midpoint of the driving gear and a second micro motor is fixedly arranged at one end of the connecting shaft, and the driving gear is meshed with the linkage gear.

[0012] The present invention provides a pesticide spreading drone with multiple spray heads. It has the following beneficial effects: The invention provides a pesticide spreading UAV with multiple spray heads. The UAV is provided with two groups of spray mechanisms on a lower body. The two groups of spray mechanisms are staggered in an upper and lower manner. The two groups of spray mechanisms staggered in an upper and lower manner can not only adjust the angles between the two spray mechanisms, so as to realize the adjustment function of the spraying angle range, but also a spray mechanism No. 1 located at the upper end is composed of two parts, namely, a main spraying part and an auxiliary spraying part. The auxiliary spraying part can realize a flipping adjustment function, and after flipping, it forms a spiral spraying shape with the main spraying part and the No. 2 spray mechanism at the lower end. By arranging the upper and lower groups of spray mechanisms, the upper and lower groups of spray mechanisms can be adjusted and used in linkage, and form a cross-shaped structure after the linkage adjustment, so as to realize a three-row parallel spraying mode. Therefore, the UAV has more diversified spraying modes, and is more diversified in use, so as to be suitable for use in spraying environments with various requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the shaft side structure of the present invention; Figure 2 It is a schematic diagram of the internal linkage structure of the first spraying mechanism and the second spraying mechanism of the present invention; Figure 3 For the present invention Figure 2 A top view structural diagram of ; Figure 4 For the present invention Figure 2 A schematic diagram of a partial top view structure; Figure 5 It is a partial side view structural schematic diagram of the first spraying mechanism of the present invention; Figure 6 It is a schematic diagram of the structure of the deployed form of the No. 1 spraying mechanism of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the side view structure of the merged form.

[0014] Among them, 1. upper body; 2. wing; 3. No. 1 spraying mechanism; 301. spraying main body plate; 302. rotating block; 303. auxiliary spraying plate; 304. driving gear; 305. rotating shaft; 306. linkage gear; 307. connecting plate; 308. liquid inlet pipe; 309. driving assembly; 3010. connecting pipe; 4. No. 2 spraying mechanism; 5. lower body; 6. slide; 7. No. 1 connecting column; 8. No. 1 gear; 9. No. 1 toothed push block; 10. worm gear; 11. worm; 12. base; 13. servo motor; 14. No. 2 toothed push block; 15. No. 2 gear; 16. linkage plate; 17. linkage rod; 18. guide rod; 19. threaded rod. DETAILED DESCRIPTION

[0015] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0016] Example: like Figure 1-Figure 7 As shown, an embodiment of the present invention provides a pesticide spreading drone with multiple spray heads, including an upper body 1, a lower body 5, four No. 1 spraying mechanisms 3 and four No. 2 spraying mechanisms 4, a base 12 is fixedly arranged at the midpoint of the inner wall of the lower body 5, threaded rods 19 are rotatably arranged at the midpoints of both sides of the inner wall of the base 12, and a guide rod 18 is fixedly arranged at the rear end position of the threaded rod 19, a linkage plate 16 is threadedly sleeved on the outer wall of the threaded rod 19, and the linkage plate 16 is slidably sleeved on the guide rod 18, a linkage rod 17 is fixedly arranged on one side of the lower end surface of the linkage plate 16, and the linkage rod 17 is away from the linkage rod 18. A No. 2 toothed push block 14 is fixedly provided at one end of the moving plate 16, a servo motor 13 is fixedly provided at the midpoint of the front end of the upper end surface of the base 12, a screw is fixedly provided at the output end of the servo motor 13, and a worm 11 is fixedly sleeved at the midpoint of the outer side of the screw, wherein a No. 1 toothed push block 9 is threadedly sleeved at one end of the screw away from the servo motor 13; four No. 2 connecting columns are rotatably provided at the lower end surface of the base 12, and the lower ends of the four No. 2 connecting columns are respectively fixedly connected to four No. 2 spraying mechanisms 4, wherein a No. 2 gear 15 is fixedly sleeved at the upper end of the No. 2 spraying mechanism 4 on the four No. 2 connecting columns; Specifically, the servo motor 13 starts to drive the screw at the output end to rotate, and after the screw rotates, it drives the No. 1 toothed push block 9 with the outer thread sleeve to move horizontally, wherein the two No. 1 gears 8 located at the rear end of the four No. 1 gears 8 are respectively meshed with the teeth on both sides of the outer wall of the No. 1 toothed push block 9, and the two No. 1 gears 8 in the same longitudinal direction of the four No. 1 gears 8 are meshed with each other, and the worm 11 is meshed with the worm wheel 10, and the lower end of the No. 1 toothed push block 9 and the upper end of the No. 2 toothed push block 14 are both provided with guide blocks for limiting their rotation, and the two guide blocks are respectively located on the upper end surface and the lower end surface of the base 12 for sliding; the two No. 2 gears 15 in the same transverse direction of the four No. 2 gears 15 are meshed with each other, and the two No. 2 gears 15 in the longitudinal direction close to the No. 2 toothed push block 14 of the four No. 2 gears 15 are respectively meshed with the teeth on the front and rear sides of the outer wall of the No. 2 toothed push block 14; That is, the No. 1 toothed push block 9 cannot rotate after being restricted, so that it can only perform longitudinal translation. When the No. 1 toothed push block 9 performs longitudinal translation, it will drive the No. 1 gear 8 meshing on both sides to rotate. Since the two No. 1 gears 8 in the longitudinal direction between the four No. 1 gears 8 are also meshed with each other, the four No. 1 gears 8 are linked to rotate when the No. 1 toothed push block 9 moves. When the four No. 1 gears 8 rotate, the angle rotation adjustment of the four No. 1 spraying mechanisms 3 at the upper end can be completed, thereby changing the spraying angle range; and since the outer worm 11 rotates when the screw rotates, the worm 11 rotates the worm wheel 10 at the lower end. The worm gear 10 drives the threaded rod 19 to rotate, causing the linkage plate 16 threadedly sleeved on the outer side of the threaded rod 19 to move laterally. After the linkage plate 16 moves laterally, it drives the linkage rod 17 at the lower end to pull the No. 2 toothed push block 14 to move. When the No. 2 toothed push block 14 moves, it drives the two No. 2 gears 15 meshing on the outer side to move, and the two No. 2 gears 15 in the lateral direction between the four No. 2 gears 15 mesh with each other, and finally completes the linkage rotation of the four No. 2 gears 15, thereby realizing the angle adjustment function of the four No. 2 spraying mechanisms 4 at the lower end, that is, in the process of completing the rotation of the No. 1 spraying mechanism 3 and the No. 2 spraying mechanism 4, the following can be formed. Figure 1 and forming a cross-shaped shape after the two No. 1 spraying mechanisms 3 are combined and the two No. 2 spraying mechanisms 4 are combined; At the same time, since the number of teeth on the first gear 8 is greater than that on the second gear 15, the number of teeth on the second gear 15 is two-thirds of that on the first gear 8, the first spray mechanism 3 and the second spray mechanism 4 are linked but with different rotation angles.

[0017] Reference Figure 1-Figure 7, the No. 1 spraying mechanism 3 includes a spraying main body plate 301, a connecting plate 307 is fixedly provided at one end of the spraying main body plate 301, a No. 1 connecting column 7 is fixedly provided at one end of the connecting plate 307 away from the spraying main body plate 301, and the No. 1 connecting column 7 is rotatably provided on the top surface of the inner wall of the lower body 5, and a No. 1 gear 8 is fixedly sleeved at the lower end of the No. 1 connecting column 7, and a driving assembly 309 is fixedly provided inside the end of the spraying main body plate 301 away from the connecting plate 307, and the driving assembly 309 includes a No. 1 micro motor and a driving shaft, wherein a rotating block 302 is fixedly sleeved at the upper end of the driving shaft, a driving gear 304 is rotatably provided at one side of the rotating block 302, and a linkage gear 306 is provided at the lower end of the driving gear 304 through a rotating shaft 305 installed by rotation, and at the same time, the auxiliary spraying plates 303 are fixedly connected to both sides of the outer wall of the rotating shaft 305; a connecting shaft is fixedly provided at the midpoint of the driving gear 304, and a No. 2 micro motor is fixedly provided at one end of the connecting shaft, and the driving gear 304 and the linkage gear 306 are meshed; Specifically, when in use, the drive shaft at the output end can be driven to rotate by starting the No. 1 micromotor, and the rotation of the drive shaft drives the rotating block 302 fixedly connected on the outside to rotate. At this time, the auxiliary spray plate 303 linked with the rotating block 302 rotates, causing the entire No. 1 spray mechanism 3 to be divided into two components; and after the auxiliary spray plate 303 completes the transverse circular rotation along the drive shaft, the No. 2 micromotor can also be started to drive the inner drive gear 304 to rotate, and the drive gear 304 drives the linkage gear 306 to rotate, causing the rotating shaft 305 to rotate, and then the auxiliary spray plate 303 fixedly connected to the rotating shaft 305 has a flipping function in the up and down direction, and after the auxiliary spray plate 303 completes the flipping in the up and down direction, it forms a spiral structure with the spray main plate 301 at the upper end and the No. 2 spray mechanism 4 at the lower end, thereby changing the spraying method.

[0018] Reference Figure 1-Figure 7 The outer wall of the upper body 1 is provided with four wings 2 for take-off drive, the front and rear ends of the upper end face and both sides of the lower end face of the lower body 5 are provided with slide grooves 6, four No. 1 spraying mechanisms 3 are respectively slidably arranged in two slide grooves 6 at the upper ends of the four slide grooves 6 in a group of two, and four No. 2 spraying mechanisms 4 are respectively slidably arranged in two slide grooves 6 at the lower ends of the four slide grooves 6 in a group of two; Specifically, the four wings 2 are provided with take-off propellers to complete the take-off function of the entire UAV; and the setting of the chute 6 ensures the maximum movement trajectory and guidance function of the No. 1 spraying mechanism 3 and the No. 2 spraying mechanism 4.

[0019] Reference Figure 1-Figure 7The upper body 1 includes an outer shell and a material storage box embedded in the inner part of the outer shell, wherein a pump body and a guide pipe are also arranged at the inner bottom end of the outer shell, one end of the guide pipe is connected to the pump body and a plurality of interfaces are arranged on the guide pipe, a liquid inlet pipe 308 is fixedly arranged on the lower end surface of the connecting plate 307 and one side of the outer wall of the second spraying mechanism 4, the liquid inlet pipe 308 located at the lower end of the connecting plate 307 passes through to the inside of the spraying main plate 301, and a plurality of liquid inlet pipes 308 are respectively connected to a plurality of interfaces, a plurality of atomizing nozzles are fixedly arranged on the lower end surface of the spraying main plate 301 and the lower end surface of the second spraying mechanism 4, and the atomizing nozzles are connected to the liquid inlet pipe 308; a connecting pipe 3010 is installed on the side of the lower end of the auxiliary spraying plate 303 close to the rotating block 302, and the connecting pipe 3010 is connected to the liquid inlet pipe 308, and a plurality of atomizing nozzles are installed on the lower end surface of the auxiliary spraying plate 303, and the atomizing nozzles are connected to the connecting pipe 3010; Specifically, when spraying, the pump body is used to pump the liquid pesticide to be sprayed into the guide tube. Since the interface on the guide tube is connected to the liquid inlet pipe 308, the liquid pesticide is prompted to flow into the liquid inlet pipe 308 along the guide tube, and the liquid inlet pipe 308 is connected to multiple atomizing nozzles, so that the liquid pesticide is sprayed using the atomizing nozzles.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pesticide spraying drone with multiple spray heads, comprising an upper body (1), a lower body (5), four No. 1 spraying mechanisms (3) and four No. 2 spraying mechanisms (4), characterized in that: A base (12) is fixedly provided at the midpoint of the interior of the lower machine body (5); threaded rods (19) are rotatably provided at the midpoints of both sides of the inner wall of the base (12); and a guide rod (18) is fixedly provided at the rear end of the threaded rod (19); a linkage plate (16) is threadedly sleeved on the outer wall of the threaded rod (19); and the linkage plate (16) is slidably sleeved on the guide rod (18); a linkage rod (17) is fixedly provided on one side of the lower end surface of the linkage plate (16); and a second toothed push block (14) is fixedly provided at the end of the linkage rod (17) away from the linkage plate (16); a servo motor (13) is fixedly provided at the midpoint of the front end of the upper end surface of the base (12); a screw is fixedly provided at the output end of the servo motor (13); and a worm (11) is fixedly sleeved at the midpoint of the outer side of the screw; and a first toothed push block (9) is threadedly sleeved on the end of the screw away from the servo motor (13); The No. 1 spraying mechanism (3) comprises a spraying main body plate (301), one end of the spraying main body plate (301) is fixedly provided with a connecting plate (307), an end of the connecting plate (307) away from the spraying main body plate (301) is fixedly provided with a No. 1 connecting column (7), and the No. 1 connecting column (7) is rotatably arranged on the top surface of the inner wall of the lower body (5), the lower end of the No. 1 connecting column (7) is fixedly sleeved with a No. 1 gear (8), and the spraying main body plate (301) away from the connecting plate (307) is fixedly provided with a No. 1 connecting column (7). ) is fixedly provided with a driving assembly (309) at one end thereof, the driving assembly (309) comprising a first micro motor and a driving shaft, wherein a rotating block (302) is fixedly sleeved on the upper end of the driving shaft, a driving gear (304) is rotatably provided on one side of the rotating block (302), and a linkage gear (306) is provided at the lower end of the driving gear (304) through a rotating shaft (305) rotatably installed, and both sides of the outer wall of the rotating shaft (305) are fixedly connected to auxiliary spray plates (303); The lower end surface of the base (12) is rotatably provided with four No. 2 connecting columns, and the lower ends of the four No. 2 connecting columns are respectively fixedly connected to four No. 2 spraying mechanisms (4), wherein a No. 2 gear (15) is fixedly sleeved at the upper end of the No. 2 spraying mechanism (4) on the four No. 2 connecting columns.

2. A pesticide spreading drone with multiple spray heads according to claim 1, characterized in that: The outer wall of the upper body (1) is provided with four wings (2) for take-off drive, and the upper end front and rear ends and both sides of the lower end face of the lower body (5) are provided with slide grooves (6), and the four No. 1 spraying mechanisms (3) are slidably arranged in groups of two in the two slide grooves (6) located at the upper ends of the four slide grooves (6), and the four No. 2 spraying mechanisms (4) are slidably arranged in groups of two in the two slide grooves (6) located at the lower ends of the four slide grooves (6).

3. The pesticide spreading drone with multiple spray heads according to claim 1, characterized in that: The upper machine body (1) comprises an outer shell and a material storage box embedded in the inner part of the outer shell, wherein a pump body and a guide pipe are also arranged at the inner bottom end of the outer shell, one end of the guide pipe is connected to the pump body and a plurality of interfaces are arranged on the guide pipe, a liquid inlet pipe (308) is fixedly arranged on the lower end surface of the connecting plate (307) and one side of the outer wall of the second spraying mechanism (4), the liquid inlet pipe (308) located at the lower end of the connecting plate (307) passes through the inner part of the spraying main body plate (301), and a plurality of the liquid inlet pipes (308) are respectively connected to a plurality of interfaces.

4. A pesticide spreading drone with multiple spray heads according to claim 3, characterized in that: A plurality of atomizing nozzles are fixedly disposed on the lower end surface of the spraying main body plate (301) and the lower end surface of the second spraying mechanism (4), and the atomizing nozzles are connected to the liquid inlet pipe (308).

5. The pesticide spreading drone with multiple spray heads according to claim 1, characterized in that: Two of the four No. 1 gears (8) located at the rear end are respectively meshed with the teeth on both sides of the outer wall of the No. 1 toothed push block (9); two of the four No. 1 gears (8) located in the same longitudinal direction are meshed with each other; the worm (11) is meshed with the worm wheel (10); the lower end of the No. 1 toothed push block (9) and the upper end of the No. 2 toothed push block (14) are both provided with guide blocks for limiting their rotation; and the two guide blocks are respectively located on the upper end surface and the lower end surface of the base (12) for sliding.

6. The pesticide spreading drone with multiple spray heads according to claim 1, characterized in that: Two of the four second gears (15) located in the same transverse direction mesh with each other, and two of the four second gears (15) located in the longitudinal direction close to the second toothed push block (14) mesh with the teeth on the front and rear sides of the outer wall of the second toothed push block (14) respectively.

7. The pesticide spreading drone with multiple spray heads according to claim 3, characterized in that: A connecting pipe (3010) is installed on the side of the lower end of the auxiliary spray plate (303) close to the rotating block (302), and the connecting pipe (3010) is connected to the liquid inlet pipe (308). A plurality of atomizing nozzles are installed on the lower end surface of the auxiliary spray plate (303), and the atomizing nozzles are connected to the connecting pipe (3010).

8. The pesticide spreading drone with multiple spray heads according to claim 1, characterized in that: A connecting shaft is fixedly arranged at the midpoint of the driving gear (304), and a second micro motor is fixedly arranged at one end of the connecting shaft. The driving gear (304) is meshed with the linkage gear (306).

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