A kind of unmanned aerial vehicle suitable for forestry prevention and control of fall armyworm

Abstract

The application belongs to the technical field of unmanned planes, and particularly relates to a kind of unmanned plane suitable for forestry prevention and control of American white moth, comprising a body; split mechanism, the split mechanism includes the lower box body fixedly connected on the body, the top of the lower box body is detachably installed with the upper box body; plug-in mechanism, the plug-in mechanism includes the infusion cylinder fixedly connected at the bottom of the upper box body, the inside of the infusion cylinder is spirally installed with the cleaning sleeve, the top of the cleaning sleeve is fixedly connected with the stirring arm, and the top of the lower box body is fixedly connected with the plug-in cylinder. The application can replace the upper box body to supplement the liquid medicine when the unmanned plane stays on the ground, can stir the liquid medicine in the upper box body through the stirring arm spirally moving upward during the process of disassembling and assembling the upper box body, can scrape off the impurities attached on the filter screen through the cleaning sleeve spirally moving downward, shorten the time of the unmanned plane staying on the ground, and improve the efficiency of the unmanned plane spraying medicine.

Description

Technical Field

[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) technology, specifically relating to a UAV suitable for controlling the fall webworm in forestry. Background Technology

[0002] The fall webworm is a pest that damages forest trees and is one of the key targets for forestry control. To control the fall webworm, drones are used to spray trees. The drones are equipped with pesticide tanks. Due to the limited payload of drones, they usually cannot carry all the pesticide needed for the entire spraying operation in one go, and the tanks typically need to be replenished several times during the operation. Each time the pesticide is replenished, the drone needs to fly back to the ground, where manual refilling of the tank is performed. After refilling, the drone takes off again to continue spraying.

[0003] In existing drones used for controlling the fall webworm in forestry, the pesticide tank is usually fixedly connected to the fuselage. When refilling the pesticide, the drone needs to remain on the ground. However, the time spent filling the pesticide tank is relatively long, and the drone can only take off and continue spraying after the pesticide is filled. This causes the drone to spend a long time on the ground during the spraying operation, which affects the overall spraying time and makes the spraying efficiency insufficient. Summary of the Invention

[0004] The purpose of this invention is to provide a drone suitable for controlling the fall webworm in forestry. When the drone is on the ground, the pesticide solution can be replenished by replacing the detachable upper housing. During the process of assembling and disassembling the upper housing, the pesticide solution in the upper housing is stirred by an upward spiraling stirring arm, and the impurities attached to the filter screen are scraped off by a downward spiraling cleaning sleeve, thereby shortening the time the drone stays on the ground and improving the efficiency of drone spraying.

[0005] The specific technical solution adopted by this invention is as follows: A drone suitable for controlling the fall webworm in forestry includes: Organism; The split mechanism is mounted on the machine body and includes a lower housing that is fixedly connected to the machine body, and an upper housing that is detachably mounted on the top of the lower housing. A plug-in mechanism is provided at the bottom of the upper housing. The plug-in mechanism includes an infusion cylinder fixedly connected to the bottom of the upper housing. A cleaning sleeve is spirally installed inside the infusion cylinder. A stirring arm is fixedly connected to the top of the cleaning sleeve. The upper end of the stirring arm is rotatably connected to the upper housing. A first spring is connected between the stirring arm and the upper housing. A plug cylinder is fixedly connected to the top of the lower housing. The plug cylinder and the infusion cylinder slide in a vertical direction. The top end of the plug cylinder abuts against the cleaning sleeve. A filter screen is fixedly connected to the outer side of the upper end of the plug cylinder. The insertion or removal of the infusion tube connects or separates the upper and lower chambers, causing the cleaning sleeve and stirring arm to move spirally up and down along the upper chamber. The cleaning sleeve cleans impurities attached to the filter screen, and the stirring arm stirs the medicine solution in the upper chamber.

[0006] As a preferred embodiment of the UAV for controlling the fall webworm in forestry according to the present invention, the cleaning sleeve includes a frame disposed inside the infusion cylinder, the outer wall of the frame is provided with a spiral groove, and the inner wall of the infusion cylinder is fixedly connected with a protrusion, the protrusion slidingly engaging with the spiral groove.

[0007] As a preferred embodiment of the UAV for controlling the fall webworm in forestry as described in this invention, a plurality of scraper blades are fixedly connected along the circumference of the frame, and the inner side of the scraper blades slides in cooperation with the outer side of the filter screen.

[0008] As a preferred embodiment of the UAV for controlling the fall webworm in forestry as described in this invention, the top of the cleaning sleeve is fixedly connected with a sealing plug, and the sealing plug fits snugly against the top of the infusion cylinder.

[0009] As a preferred embodiment of the UAV applicable to forestry control of the fall webworm described in this invention, the sealing plug has a first inclined surface on the side near the infusion cylinder, and the top of the infusion cylinder has a second inclined surface, with the first inclined surface and the second inclined surface fitting together.

[0010] As a preferred embodiment of the UAV for controlling the fall webworm in forestry as described in this invention, the stirring arm includes a stirring shaft fixedly connected to the top of the cleaning sleeve, and a number of stirring blades are detachably connected to the stirring shaft.

[0011] As a preferred embodiment of the UAV for controlling the fall webworm in forestry according to the present invention, the stirring blade is slidably connected to the stirring shaft in a radial direction, the stirring shaft has a threaded hole inside, the stirring blade has a limit hole inside, and the stirring blade and the stirring shaft are connected by screws.

[0012] As a preferred embodiment of the UAV for controlling the fall webworm in forestry as described in this invention, the bottom of the upper housing is slidably connected to the top of the lower housing, and a snap-fit ​​assembly is provided on the outer side of the upper housing and the lower housing. The snap-fit ​​assembly is fixedly connected to the body and is used to limit the upper housing and the lower housing.

[0013] As a preferred embodiment of the UAV for controlling the fall webworm in forestry as described in this invention, the bottom of the upper housing is fixedly connected with a plurality of first sliding columns, and the top of the lower housing is fixedly connected with a plurality of second sliding columns, wherein the first sliding columns and the second sliding columns slide in a vertical direction.

[0014] As a preferred embodiment of the UAV for controlling the fall webworm in forestry according to the present invention, the snap-fit ​​assembly includes a plug slidably connected to the body, a second spring connecting the plug and the body, a first insertion hole on the outer wall of the first sliding column, a second insertion hole on the outer wall of the second sliding column, and both the first insertion hole and the second insertion hole slidingly engaging with the plug.

[0015] The technical effects achieved by this invention are as follows: This invention adopts a split mechanism design, with the lower and upper boxes being separate, which facilitates the replacement of the upper box. The spare upper box is injected with liquid in advance on the ground. When the liquid carried by the drone is used up and returns to the ground, the spare upper box is replaced on the drone to replenish the liquid. Compared with the existing method of injecting liquid into drones that are stationary on the ground, this method shortens the time that the drone stays on the ground and improves the spraying efficiency of the drone. This invention employs a plug-in mechanism design. This mechanism can clean impurities adhering to the filter screen and agitate the medicine during the assembly and disassembly of the lower and upper housings. When the upper housing is installed, it moves downward along the lower housing, allowing the plug to be inserted into the infusion cylinder and lift the cleaning sleeve and stirring arm. This causes the stirring arm to move upward in a spiral motion to agitate the medicine in the upper housing. When the upper housing is disassembled, it moves upward along the lower housing, and the first spring, under its elastic force, pushes the stirring arm and cleaning sleeve downward. This causes the cleaning sleeve to move downward in a spiral motion to scrape off impurities adhering to the filter screen. Since the processes of agitating the medicine and scraping off impurities are included in the assembly and disassembly of the upper housing, the time the drone spends on the ground is shortened, thereby improving the efficiency of drone spraying. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 In this invention Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the split mechanism in this invention; Figure 4 This is a cross-sectional schematic diagram of the upper housing and the plug-in mechanism in this invention; Figure 5 This is an exploded view of the lower and upper boxes in this invention; Figure 6 This is a cross-sectional schematic diagram of the upper box and the infusion cylinder in this invention; Figure 7 In this invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is an exploded view of the stirring shaft and stirring blades in this invention.

[0017] The attached diagram lists the components represented by each number as follows: 10. Body; 20. Split mechanism; 21. Lower housing; 22. Upper housing; 30. Insertion mechanism; 31. Infusion cylinder; 311. Protrusion; 32. Cleaning sleeve; 321. Frame; 322. Spiral groove; 323. Scraper; 33. Stirring arm; 331. Stirring shaft; 332. Stirring blade; 333. Threaded hole; 334. Limiting hole; 335. Screw; 34. First spring; 35. Insert cylinder; 351. Filter screen; 41. Sealing plug; 42. First inclined surface; 43. Second inclined surface; 50. Snap-fit ​​assembly; 501. Insert block; 51. First sliding column; 511. First insertion hole; 512. Third inclined surface; 52. Second sliding column; 521. Second insertion hole; 53. Second spring. Detailed Implementation

[0018] To make the objectives and advantages of this invention clearer, the invention will be specifically described below with reference to embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of the invention and does not strictly limit the scope of protection specifically claimed by the invention.

[0019] Example 1 like Figures 1 to 8 As shown, this is the first embodiment of the present invention. This embodiment provides a drone suitable for controlling the fall webworm in forestry, including a body 10; a split mechanism 20, which is disposed on the body 10 and includes a lower housing 21 fixedly connected to the body 10, with an upper housing 22 detachably mounted on the top of the lower housing 21; and a plug-in mechanism 30, which is disposed at the bottom of the upper housing 22 and includes a feed mechanism fixedly connected to the bottom of the upper housing 22. The infusion cylinder 31 has a cleaning sleeve 32 spirally installed inside. The top of the cleaning sleeve 32 is fixedly connected to a stirring arm 33. The upper end of the stirring arm 33 is rotatably connected to the upper box 22. A first spring 34 is connected between the stirring arm 33 and the upper box 22. The top of the lower box 21 is fixedly connected to a tube 35. The tube 35 slides in a vertical direction with the infusion cylinder 31. The top of the tube 35 abuts against the cleaning sleeve 32. A filter screen 351 is fixedly connected to the outer side of the upper end of the tube 35.

[0020] It should be noted that several flight arms are fixedly connected to the fuselage 10, and nozzles for spraying liquid are fixedly connected to the flight arms. A pump body is fixedly installed on the fuselage 10. The input end of the pump body is connected to the bottom of the lower housing 21 through an infusion pipe, and the output end of the pump body is connected to the nozzle through an infusion pipe (not shown in the figure). The inside of the infusion cylinder 31 is a through hole that connects the upper and lower parts. The inside of the infusion cylinder 31 is connected to the inside of the upper housing 22. The insert 35 has an opening (not shown in the figure) on its inner wall near the filter screen 351. The opening is connected to the inside of the lower housing 21. The vertical dimension of the opening is smaller than the vertical dimension of the infusion cylinder 31. The filter screen 351... The upper part has several filter holes with a diameter smaller than that of impurity particles. These holes are used to filter impurities in the liquid medicine to reduce the clogging of the nozzle. The top of the cleaning sleeve 32 abuts against the bottom of the upper box 22 to seal the bottom of the upper box 22. The top of the upper box 22 has a liquid inlet for injecting liquid medicine into the upper box 22. The stirring arm 33 stirs the liquid medicine to reduce sedimentation and uneven concentration. There are multiple upper boxes 22. One upper box 22 is mounted on the drone, while the others are on standby on the ground. The standby upper boxes 22 are pre-filled with liquid medicine to replace the upper box 22 mounted on the drone.

[0021] In use, when the upper housing 22 needs to be disassembled, the upper housing 22 is moved upward along the lower housing 21, causing the infusion cylinder 31 to move upward along the insertion tube 35. The first spring 34, under its elastic action, pushes the stirring arm 33 and the cleaning sleeve 32 downward in a spiral motion along the upper housing 22. During this process, the cleaning sleeve 32 rotates along the infusion cylinder 31 while moving downward, causing relative rotation between the cleaning sleeve 32 and the insertion tube 35 to scrape away impurities attached to the filter screen 351. The upper housing 22 continues to move upward along the lower housing 21, causing the infusion cylinder 31 to separate from the insertion tube 35. The top of the cleaning sleeve 32 seals the infusion cylinder 31, thus disassembling the upper housing 22. Since the process of scraping away impurities is included in the disassembly of the upper housing 22, compared with the traditional method, it saves the time of manually cleaning the filter screen 351, thereby shortening the time the drone spends on the ground and improving the efficiency of drone operation. To improve the spraying efficiency of the drone, when the upper housing 22 needs to be installed, it is moved downwards along the lower housing 21, allowing the insert 35 to be inserted into the infusion cylinder 31. The insert 35 pushes the cleaning sleeve 32 upwards, causing the cleaning sleeve 32 and the stirring arm 33 to spiral upwards along the upper housing 22. During this process, the stirring arm 33 moves upwards while rotating with the cleaning sleeve 32, stirring the pesticide solution from bottom to top within the upper housing 22. After the upper housing 22 moves downwards along the lower housing 21, the insert 35 extends into the interior of the upper housing 22. The pesticide solution in the upper housing 22 passes through the filter screen 351 and then moves through the insert 35 to the lower housing 21, thus installing the upper housing 22. Since the process of stirring the pesticide solution is included in the installation of the upper housing 22, compared with the traditional method, it saves the time of manual stirring of the pesticide solution, thereby shortening the time the drone spends on the ground and improving the spraying efficiency of the drone. The upper housing 22 and the lower housing 21 are detachably installed. When the liquid medicine carried by the drone is used up and returns to the ground, since the liquid medicine was already injected into the upper housing 22 before installation, it is easy to directly replenish the liquid medicine by replacing the upper housing 22. Compared with the existing method, this avoids the situation where the drone needs to stay on the ground during the process of injecting liquid medicine into the upper housing 22, shortens the time the drone stays on the ground, and thus improves the spraying efficiency of the drone. In addition, the stirring arm 33 stirs the liquid medicine from bottom to top in the upper housing 22, which facilitates stirring of the liquid medicine at different height positions and makes the concentration of the liquid medicine more uniform.

[0022] Example 2 Reference Figures 1 to 8 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0023] like Figure 4 , Figure 6 , Figure 7 and Figure 8As shown, the cleaning sleeve 32 includes a frame 321 disposed inside the infusion cylinder 31. The outer wall of the frame 321 is provided with a spiral groove 322. The inner wall of the infusion cylinder 31 is fixedly connected with a protrusion 311, and the protrusion 311 slides in cooperation with the spiral groove 322.

[0024] According to the above structure, when the cleaning sleeve 32 moves up and down relative to the infusion cylinder 31, the spiral groove 322 slides relative to the protrusion 311, so that the frame 321 moves up and down along the infusion cylinder 31 and rotates at the same time, thereby realizing the spiral movement of the cleaning sleeve 32, which makes it easier for the cleaning sleeve 32 to clean the impurities attached to the filter screen 351. The cleaning sleeve 32 drives the stirring arm 33 to move up and down spirally, which makes it easier for the stirring arm 33 to stir the medicine.

[0025] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, several scraper strips 323 are fixedly connected to the frame 321 along the circumference, and the inner side of the scraper strips 323 slides in cooperation with the outer side of the filter screen 351.

[0026] It should be noted that the two ends of the scraper 323 are fixedly connected to the upper and lower ends of the frame 321, respectively.

[0027] According to the above structure, after the frame 321 rotates, it drives the scraper 323 to slide along the filter screen 351, which facilitates the removal of impurities attached to the filter screen 351. At the same time, the scraper 323 also connects and supports the upper and lower ends of the frame 321, improving the stability of the frame 321.

[0028] like Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, a sealing plug 41 is fixedly connected to the top of the cleaning sleeve 32, and the sealing plug 41 fits snugly against the top of the infusion cylinder 31.

[0029] According to the above structure, when the upper box 22 is removed from the lower box 21, the first spring 34 pushes the stirring arm 33 and the cleaning sleeve 32 to move downward spirally along the upper box 22 under the elastic action, so that the top of the cleaning sleeve 32 drives the sealing plug 41 to fit tightly against the top of the infusion cylinder 31, which facilitates sealing the infusion cylinder 31 and reduces the leakage from the infusion cylinder 31 when the upper box 22 is not installed on the lower box 21.

[0030] like Figure 6 , Figure 7 and Figure 8 As shown, the sealing plug 41 has a first inclined surface 42 on the side near the infusion cylinder 31, and the infusion cylinder 31 has a second inclined surface 43 on the top, with the first inclined surface 42 and the second inclined surface 43 fitting together.

[0031] It should be noted that the sealing plug 41 is made of elastic material, and both the first inclined surface 42 and the second inclined surface 43 are inclined surfaces.

[0032] According to the above structure, the first inclined surface 42 and the second inclined surface 43 fit together, which makes it easy for the sealing plug 41 to fit tightly against the top of the infusion cylinder 31, thereby improving the reliability of sealing the infusion cylinder 31.

[0033] like Figure 4 , Figure 6 and Figure 8 As shown, the stirring arm 33 includes a stirring shaft 331 fixedly connected to the top of the cleaning sleeve 32, and a number of stirring blades 332 are detachably connected to the stirring shaft 331.

[0034] According to the above structure, the stirring blade 332 is detachably connected to the stirring shaft 331, which facilitates the replacement of the stirring blade 332, improves the ease of disassembly and assembly of the stirring blade 332, and reduces the need to replace the stirring blade 332 and the stirring shaft 331 as a whole after the stirring blade 332 is damaged.

[0035] like Figure 8 As shown, the stirring blade 332 and the stirring shaft 331 are slidably connected in the radial direction. The stirring shaft 331 has a threaded hole 333 inside, the stirring blade 332 has a limit hole 334 inside, and the stirring blade 332 and the stirring shaft 331 are connected by screws 335.

[0036] It should be noted that screw 335 has a sliding fit with limiting hole 334, and screw 335 has a threaded fit with threaded hole 333.

[0037] According to the above structure, when it is necessary to remove the stirring blade 332 from the stirring shaft 331, the screw 335 is removed from the limiting hole 333 and the threaded hole 334, and the stirring blade 332 is pulled out from the stirring shaft 331, thereby removing the stirring blade 332. When it is necessary to install the stirring blade 332 on the stirring shaft 331, the stirring blade 332 is inserted into the stirring shaft 331, so that the threaded hole 334 is aligned with the limiting hole 333, and the screw 335 is inserted into the threaded hole 334 and the limiting hole 333 to limit the stirring blade 332 and the stirring shaft 331, thereby installing the stirring blade 332, which facilitates the disassembly and assembly of the stirring blade 332 and the stirring shaft 331.

[0038] like Figure 1 and Figure 2 As shown, the bottom of the upper box 22 is slidably connected to the top of the lower box 21. The outer sides of the upper box 22 and the lower box 21 are provided with a snap-fit ​​assembly 50, which is fixedly connected to the body 10. The snap-fit ​​assembly 50 is used to limit the upper box 22 and the lower box 21.

[0039] According to the above structure, the upper housing 22 and the lower housing 21 are detachably installed together by the snap-fit ​​assembly 50, which facilitates the replacement of the upper housing 22.

[0040] like Figure 2 , Figure 4 and Figure 5 As shown, the bottom of the upper box 22 is fixedly connected with several first sliding pillars 51, and the top of the lower box 21 is fixedly connected with several second sliding pillars 52. The first sliding pillars 51 and the second sliding pillars 52 slide in a vertical direction.

[0041] It should be noted that the first sliding post 51 has a convex surface on the side near the second sliding post 52, and the second sliding post 52 has a concave surface on the side near the first sliding post 51, with the convex surface and the concave surface fitting together.

[0042] According to the above structure, the first sliding column 51 and the second sliding column 52 cooperate to limit the upper box 22 and the lower box 21 in the horizontal direction, so that the process of the upper box 22 sliding up and down along the lower box 21 is more stable, and it is easier for the insert 35 to be aligned and inserted into the infusion cylinder 31.

[0043] like Figure 2 , Figure 4 and Figure 5 As shown, the snap-fit ​​assembly 50 includes a plug 501 slidably connected to the body 10. A second spring 53 is connected between the plug 501 and the body 10. A first insertion hole 511 is provided on the outer wall of the first sliding post 51, and a second insertion hole 521 is provided on the outer wall of the second sliding post 52. Both the first insertion hole 511 and the second insertion hole 521 are slidably engaged with the plug 501.

[0044] It should be noted that a third inclined surface 512 is provided on the bottom of the first sliding post 51 near the side of the insertion block 501, which is used to push the insertion block 501 to slide outward.

[0045] According to the above structure, when it is necessary to disassemble the upper housing 22, the insert block 501 is slid outward along the body 10, so that the insert block 501 is pulled out from the inside of the first insertion hole 511 and the second insertion hole 521. The insert block 501 no longer limits the first sliding post 51 and the second sliding post 52. The upper housing 22 is moved upward along the lower housing 21, so that the first sliding post 51 and the second sliding post 52 are disengaged, thereby disassembling the upper housing 22. When it is necessary to install the upper housing 22, the upper housing 22 is moved downward along the lower housing 21, so that the first sliding post 51 moves downward along the second sliding post 52. 52 moves downward, and the bottom of the first sliding column 51 pushes the insert block 501 to slide outward. At this time, the second spring 53 is squeezed by the insert block 501. The first sliding column 51 continues to move downward along the second sliding column 52, so that the first insertion hole 511 and the second insertion hole 521 are aligned. The insert block 501 is inserted into the first insertion hole 511 and the second insertion hole 521, and the first sliding column 51 and the second sliding column 52 are limited in the vertical direction, so as to facilitate the limitation of the upper box 22 and the lower box 21 and improve the stability of the upper box 22 installed on the lower box 21.

[0046] The working principle of this invention is as follows: the upper housing 22 and the lower housing 21 are detachably connected. While the drone is on the ground, the upper housing 22 can be easily replaced to directly replenish the liquid, shortening the time the drone spends on the ground and thus improving the drone's spraying efficiency. During the disassembly and assembly of the upper housing 22, as the insert 35 is inserted into or removed from the infusion cylinder 31, the cleaning sleeve 32 and the stirring arm 33 move up and down in a spiral motion. When the cleaning sleeve 32 moves downward in a spiral motion, it scrapes off the impurities attached to the filter screen 351. When the stirring arm 33 moves upward in a spiral motion, it stirs the liquid in the upper housing 22. Since the process of stirring the liquid and scraping off impurities is included in the disassembly and assembly of the upper housing 22, it saves the time of manually stirring the liquid and cleaning the filter screen 351, thereby shortening the time the drone spends on the ground and improving the drone's spraying efficiency.

[0047] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention are implemented according to conventional methods in the art unless otherwise specified or limited.

Claims

1. A drone suitable for controlling the fall webworm in forestry, characterized in that, include: Body (10); The split mechanism (20) is mounted on the body (10). The split mechanism (20) includes a lower box (21) fixedly connected to the body (10), and an upper box (22) is detachably mounted on the top of the lower box (21). A plug-in mechanism (30) is provided at the bottom of the upper box (22). The plug-in mechanism (30) includes an infusion cylinder (31) fixedly connected to the bottom of the upper box (22). A cleaning sleeve (32) is spirally installed inside the infusion cylinder (31). A stirring arm (33) is fixedly connected to the top of the cleaning sleeve (32). The upper end of the stirring arm (33) is rotatably connected to the upper box (22). A first spring (34) is connected between the stirring arm (33) and the upper box (22). A plug cylinder (35) is fixedly connected to the top of the lower box (21). The plug cylinder (35) and the infusion cylinder (31) slide in a vertical direction. The top end of the plug cylinder (35) abuts against the cleaning sleeve (32). A filter screen (351) is fixedly connected to the outer side of the upper end of the plug cylinder (35). The insert (35) is inserted into or removed from the infusion cylinder (31) to connect or separate the upper box (22) and the lower box (21), and the cleaning sleeve (32) and the stirring arm (33) move up and down spirally along the upper box (22) so that the cleaning sleeve (32) cleans the impurities attached to the filter screen (351) and the stirring arm (33) stirs the medicine in the upper box (22). The cleaning sleeve (32) includes a frame (321) disposed inside the infusion cylinder (31). The outer wall of the frame (321) is provided with a spiral groove (322). The inner wall of the infusion cylinder (31) is fixedly connected with a protrusion (311). The protrusion (311) and the spiral groove (322) are slidably engaged. A number of scraper strips (323) are fixedly connected to the frame (321) along the circumferential direction, and the inner side of the scraper strips (323) slides in cooperation with the outer side of the filter screen (351). A sealing plug (41) is fixedly connected to the top of the cleaning sleeve (32), and the sealing plug (41) fits snugly against the top of the infusion cylinder (31). The sealing plug (41) has a first inclined surface (42) on the side near the infusion cylinder (31), and a second inclined surface (43) is provided on the top of the infusion cylinder (31). The first inclined surface (42) and the second inclined surface (43) fit together. The stirring arm (33) includes a stirring shaft (331) fixedly connected to the top of the cleaning sleeve (32), and a number of stirring blades (332) are detachably connected to the stirring shaft (331).

2. The UAV for controlling the fall webworm in forestry according to claim 1, characterized in that: The stirring blade (332) is slidably connected to the stirring shaft (331) in the radial direction. The stirring shaft (331) has a threaded hole (333) inside. The stirring blade (332) has a limit hole (334) inside. The stirring blade (332) and the stirring shaft (331) are connected by a screw (335).

3. The UAV for controlling the fall webworm in forestry according to claim 1, characterized in that: The bottom of the upper box (22) is slidably connected to the top of the lower box (21). The upper box (22) and the lower box (21) are provided with snap-fit ​​components (50) on their outer sides. The snap-fit ​​components (50) are fixedly connected to the body (10). The snap-fit ​​components (50) are used to limit the upper box (22) and the lower box (21).

4. The UAV for controlling the fall webworm in forestry according to claim 3, characterized in that: The bottom of the upper box (22) is fixedly connected with several first sliding columns (51), and the top of the lower box (21) is fixedly connected with several second sliding columns (52). The first sliding columns (51) and the second sliding columns (52) slide in a vertical direction.

5. The UAV for controlling the fall webworm in forestry according to claim 4, characterized in that: The snap-fit ​​assembly (50) includes a plug (501) slidably connected to the body (10). A second spring (53) is connected between the plug (501) and the body (10). A first insertion hole (511) is provided on the outer wall of the first sliding post (51), and a second insertion hole (521) is provided on the outer wall of the second sliding post (52). The first insertion hole (511) and the second insertion hole (521) are both slidably engaged with the plug (501).

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