A device for releasing natural enemy insects for preventing and treating forest diseases and insect pests

Abstract

The application relates to the technical field of pest control, in particular to a natural enemy insect releasing device for forest pest control, which comprises a UAV body, a fixing seat fixed at the bottom end of the UAV body and a plurality of stainless steel pipe releasing barrels fixed at the bottom end of the fixing seat at equal angles. When the sealing cover plate is opened for releasing, the smooth material surface of the arc-shaped glass sheet contacts with insects, the surface of the arc-shaped glass sheet is free of fiber protrusions and has extremely low friction coefficient, crawling insects can smoothly climb to the releasing port, the climbing success rate is obviously improved, and the subsequent predation and breeding capacity is not affected. When the sealing cover plate is closed and releasing is not performed, the ground glass roller rotates to drive the ground glass surface to face the inside of the stainless steel pipe releasing barrel, sufficient climbing support points are provided for insects, the insects can climb to different heights of the inner wall of the stainless steel pipe releasing barrel, the problem that the insects are crowded and accumulated at the bottom of the stainless steel pipe releasing barrel is solved, and the body surface damage and suffocation risk caused by extrusion are avoided.

Description

Technical Field

[0001] This invention relates to the field of pest and disease control technology, specifically to a device for releasing natural enemy insects for the control of forest pests and diseases. Background Technology

[0002] In the cultivation of large-diameter timber, the healthy growth of trees is a core element in ensuring timber quality and yield. However, outbreaks of forest pests such as pine wilt nematodes, longhorn beetles, and red turpentine beetles often lead to large-scale tree mortality, causing significant economic and ecological losses. In recent years, my country has gradually adopted a combination of drones and delivery equipment to form a drone-based biological control system for pest management, achieving certain results. This system has been widely promoted and used in pest control work across the country, effectively reducing pollution problems caused by chemical control, minimizing pest losses, and increasing crop yields and vegetation coverage.

[0003] Existing natural enemy insect release devices generally consist of a drone, a release tube, and a sealing cap. Their working principle is as follows: the drone carries the release tube to the target control area. The release tube is pre-loaded with natural enemy insects. In the non-release state, the sealing cap closes the tube opening to prevent the insects from escaping prematurely or being disturbed by the external environment. When the drone arrives at the designated location, a preset program or remote control triggers the sealing cap to open, releasing the natural enemy insects from the release tube and scattering them over the crop area, achieving biological control of the target pests.

[0004] However, the release cylinders in existing release devices have significant design flaws for reptiles (such as adult velvet beetles and ground beetles). Currently, the inner walls of these cylinders are mostly made of untreated ordinary plastic or paper. Ordinary plastic surfaces often have rough textures from injection molding residue and lack a smooth coating; paper, due to its loose fiber structure, easily forms protruding fiber bundles or gaps. Reptiles generally have well-developed claws on their legs, used for climbing rough surfaces such as tree bark and soil in their natural environment. When this physiological structure comes into contact with the inner wall material of the release cylinder, the claws easily become embedded in the plastic textures or hook onto the paper fibers, causing the insects to become obstructed and stuck, unable to move smoothly along the inner wall towards the cylinder opening.

[0005] This problem directly leads to two adverse consequences: on the one hand, a large number of insects remain stuck inside the release tube due to their legs being continuously tangled, and are unable to move normally due to the confined space, rapidly consuming energy and eventually dying from exhaustion; on the other hand, although some insects manage to crawl out with difficulty, their legs may be stretched and deformed in the process, or their bodies may be scratched by the material protrusions, causing damage. This makes it difficult for them to steadily grasp their prey and significantly slows down their movement speed when hunting, greatly reducing their ability to control the target pests. This not only wastes insect resources but also fails to achieve the expected biological control effect. Summary of the Invention

[0006] The purpose of this invention is to provide a release device for natural enemy insects used in the prevention and control of forest pests and diseases, in order to solve the obvious defects of the release cylinders of existing natural enemy insect release devices mentioned in the background art for reptiles such as adult ground beetles and velvet beetles. Their inner walls are mostly made of ordinary plastic or paper, with high surface friction and fibrous and protruding structures, which easily hook the insects' legs and prevent them from crawling out smoothly. Some insects die from exhaustion due to being stuck, and even if they successfully crawl out, they may suffer mechanical damage, resulting in a significant decrease in their subsequent predation ability.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a release device for natural enemy insects used in the prevention and control of forest pests and diseases, comprising a drone body, a fixed base fixed to the bottom of the drone body, and a plurality of stainless steel tube release cylinders fixed at equal angles around the bottom of the fixed base. A rotating shaft is vertically arranged between the plurality of stainless steel tube release cylinders. An intermittent drive component is arranged outside the rotating shaft. An opening and closing component is arranged at the bottom opening of each stainless steel tube release cylinder. An outer sleeve is fitted around the outside of each stainless steel tube release cylinder. A switching component is arranged between each stainless steel tube release cylinder and the outer sleeve. A blowing component is arranged inside each stainless steel tube release cylinder near the fixed base. The switching component includes a plurality of abrasive rollers and a double-sided gear ring. The plurality of abrasive rollers are arranged at equal angles around the stainless steel tube release cylinder and the outer sleeve. The double-sided gear ring is rotatably engaged and installed on the outside of the top side of the outer sleeve.

[0008] Furthermore, a support frame is fixedly installed at the bottom of the drone body, and a cover is threadedly connected to the side of each stainless steel tube release cylinder near the fixed seat.

[0009] Furthermore, the intermittent drive assembly includes a control motor, a first turntable, and a second turntable. The control motor is embedded inside one side of the fixed base. The first turntable is fixedly installed through the outside of the rotating shaft near the double-sided gear ring. The second turntable is fixedly installed through the outside of the rotating shaft near the opening and closing assembly.

[0010] Furthermore, a first arc-shaped rack is fixedly installed on the outside of one side of the first turntable, and a second arc-shaped rack is fixedly installed on the outside of one side of the second turntable. The output end of the control motor is coaxially fixed with one end of the rotating shaft.

[0011] Furthermore, the bottom end of the outer sleeve is fixedly connected to the outside of the open end of the stainless steel tube release cylinder by a sealing ring. The opening and closing assembly includes a positioning frame and a sealing cover plate. The positioning frame is fixedly installed on the outside of one side of the outer sleeve, and the sealing cover plate is attached to the outside of the open end of the stainless steel tube release cylinder.

[0012] Furthermore, a rotating rod is fixedly installed through one side of the sealing cover plate. Both ends of the rotating rod are rotatably engaged with the top side of the positioning frame. A worm gear is fixedly installed through the inside of the rotating rod. A worm is vertically meshed with one side of the worm gear. A first rotating seat and a second rotating seat are respectively rotatably engaged at the top and bottom ends of the worm. One side of the first rotating seat and the second rotating seat are fixedly installed on the outside of one side of the positioning frame. A drive gear is fixedly installed at the bottom end of the worm.

[0013] Furthermore, one side of each of the several abrasive rollers is rotatably fitted inside the stainless steel tube release cylinder. A limit rod is fixedly installed inside each abrasive roller. A positioning seat is rotatably engaged at the top and bottom of the limit rod. One side of the positioning seat is fixedly installed outside the stainless steel tube release cylinder. A limit gear is fixedly installed outside the side of the limit rod. One side of the limit gear meshes with the internal teeth of one side of the double-sided gear ring.

[0014] Furthermore, an arc-shaped glass sheet is embedded and fixed on one side of each of the abrasive rollers.

[0015] Furthermore, the blower assembly includes a connecting block and a drive motor. The connecting block is fixedly installed on the outside of the rotating shaft near the fixed base. The drive motor is located at the top center of the stainless steel tube release cylinder. One end of the connecting block is connected to the internal battery of the drone body. An auxiliary frame is fixedly installed through the outside of the drive motor. One end of the auxiliary frame is fixedly installed on the inner wall of the stainless steel tube release cylinder. A fan blade is fixedly installed at the output end of the drive motor. A ring frame is fixedly installed on the inner wall of the stainless steel tube release cylinder on the side away from the fixed base from the fan blade.

[0016] Furthermore, a protective net is fixedly installed inside the ring frame, and a connecting plate is conductively and fixedly connected to the wiring terminal of the drive motor. The input end of the connecting plate is installed through and outside one side of the stainless steel tube release cylinder. A connecting block is conductively and fixedly connected to the input end of the connecting plate. Several air inlets are equidistantly and through and around the edge of the stainless steel tube release cylinder near the fixed base.

[0017] Compared with the prior art, the beneficial effects of the present invention are: 1. By setting up the stainless steel tube release cylinder, outer tube, opening and closing components, and switching components, the release device can switch the internal material of the stainless steel tube release cylinder according to the opening and closing state of the sealing cover during use: When the sealing cover is open for release, the rotating frosted roller drives the arc-shaped glass plate towards the inside of the stainless steel tube release cylinder, so that the smooth material surface of the arc-shaped glass plate comes into contact with the insect. Its surface has no fiber protrusions and a very low coefficient of friction, which can prevent the legs of crawling insects from getting tangled and stuck, allowing the insects to climb smoothly to the release port, reducing mechanical damage caused by prolonged stay and exhaustion or limb tangling, and significantly improving the release efficiency. The insects have a high success rate of climbing out, and after climbing out, they are full of energy, so their subsequent predation and reproduction abilities are not affected. At the same time, the smooth inner wall makes the release path uninterrupted, avoiding insects getting stuck or clogging the release port, and reducing the waste of release quantity. When the sealed cover is closed and no release is being carried out, the rotation of the frosted roller moves its frosted surface towards the inside of the stainless steel tube release cylinder, providing ample climbing support points for the insects to climb to different heights on the inner wall of the stainless steel tube release cylinder. This solves the problem of clustering at the bottom of the stainless steel tube release cylinder, avoids the risk of skin damage and suffocation caused by squeezing, and can also simulate the natural touch, reduce the stress response caused by the monotonous environment, maintain the activity of the population, and ensure that the insects are in the best physiological state when released.

[0018] 2. By using an intermittent drive component and several stainless steel tube release cylinders, this insect predator release device can release insects in an orderly and phased manner during use. This avoids excessively high local density and resource waste caused by a large number of insects crawling out at once, while ensuring a more uniform release coverage area. It is especially suitable for scenarios such as orchards and tea gardens where dispersed release is required, solving the defects of uncontrollable release volume and uneven distribution of existing devices. In addition, by setting up a blowing component, this device can generate wind to help insects crawl out smoothly during insect release, and also blow air to clean the inside of the stainless steel tube release cylinders, achieving self-cleaning of the device and avoiding residual impurities from affecting subsequent use. This effectively optimizes insect release efficiency and device cleanliness, resulting in better overall performance. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a bottom-view perspective view of the three-dimensional structure of the fixing base and the stainless steel tube release cylinder of the present invention.

[0022] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0023] Figure 5 for Figure 3 Enlarged structural diagram at point C;

[0024] Figure 6 This is a partial cross-sectional three-dimensional structural diagram of the stainless steel tube release cylinder and outer sleeve of the present invention;

[0025] Figure 7 for Figure 6 Enlarged structural diagram at point D;

[0026] Figure 8 This is a schematic diagram demonstrating the rotation and switching of the abrasive roller inside the stainless steel tube release cylinder of the present invention.

[0027] Figure 9 This is a bottom view of the fixed base and stainless steel tube release cylinder of the present invention.

[0028] Figure 10 This is a bottom view of the structure of the frosting roller and the curved glass sheet of the present invention;

[0029] Figure 11 This is a three-dimensional structural diagram of the stainless steel tube release cylinder and auxiliary frame of the present invention;

[0030] Figure 12 for Figure 11 Enlarged structural diagram at point E in the middle.

[0031] The attached diagram lists the components represented by each number as follows:

[0032] 1. UAV body; 2. Mounting base; 3. Stainless steel tube release cylinder; 4. Outer tube; 5. Rotating shaft; 6. Control motor; 7. First turntable; 8. Positioning frame; 9. Sealing cover; 10. Rotating rod; 11. Worm gear; 12. Worm; 13. Drive gear; 14. First arc-shaped rack; 15. First rotating seat; 16. Second rotating seat; 17. Frosting roller; 18. Limiting rod; 19. Positioning seat; 20. Limiting gear; 21. Double-sided gear ring; 22. Second turntable; 23. Second arc-shaped rack; 24. Arc-shaped glass plate; 25. Connecting block; 26. Air inlet; 27. Auxiliary frame; 28. Drive motor; 29. ​​Fan blade; 30. Conducting block; 31. Connecting plate; 32. Circular ring frame; 33. Protective net; 34. Shielding cover; 35. Support frame. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1 - Figure 10 A device for releasing natural enemy insects for the control of forest pests and diseases includes a drone body 1, a fixed base 2 fixed to the bottom of the drone body 1, and a plurality of stainless steel tube release cylinders 3 fixed at equal angles around the bottom of the fixed base 2. A rotating shaft 5 is vertically arranged between the plurality of stainless steel tube release cylinders 3. An intermittent drive component is arranged outside the rotating shaft 5. An opening and closing component is arranged at the bottom opening of each stainless steel tube release cylinder 3. An outer sleeve 4 is fitted around the outside of each stainless steel tube release cylinder 3. A switching component is arranged between each stainless steel tube release cylinder 3 and the outer sleeve 4. The switching component includes a plurality of abrasive rollers 17 and a double-sided gear ring 21. The plurality of abrasive rollers 17 are arranged at equal angles around the stainless steel tube release cylinder 3 and the outer sleeve 4. The double-sided gear ring 21 is rotatably engaged and installed on the outside of the top side of the outer sleeve 4.

[0035] A support frame 35 is fixedly installed at the bottom of the drone body 1, and a cover 34 is threadedly connected to the side of each stainless steel tube release cylinder 3 near the fixed base 2.

[0036] The intermittent drive assembly includes a control motor 6, a first turntable 7, and a second turntable 22. The control motor 6 is embedded inside one side of the fixed base 2. The first turntable 7 is fixedly installed through the outside of the rotating shaft 5 near the double-sided gear ring 21. The second turntable 22 is fixedly installed through the outside of the rotating shaft 5 near the opening and closing assembly.

[0037] A first arc-shaped rack 14 is fixedly installed on one side of the first turntable 7, and a second arc-shaped rack 23 is fixedly installed on one side of the second turntable 22. The output end of the control motor 6 is coaxially fixed with one end of the rotating shaft 5.

[0038] The bottom end of the outer tube 4 is fixedly connected to the outside of the open end of the stainless steel tube release cylinder 3 by a sealing ring. The opening and closing assembly includes a positioning frame 8 and a sealing cover plate 9. The positioning frame 8 is fixedly installed on the outside of one side of the outer tube 4, and the sealing cover plate 9 is attached to the outside of the open end of the stainless steel tube release cylinder 3.

[0039] A rotating rod 10 is fixedly installed through one side of the sealing cover plate 9. Both ends of the rotating rod 10 are rotatably engaged and installed on the outside of the top side of the positioning frame 8. A worm gear 11 is fixedly installed through the inside of the rotating rod 10. A worm 12 is vertically engaged and connected on one side of the worm gear 11. A first rotating seat 15 and a second rotating seat 16 are respectively rotatably engaged and installed at the top and bottom ends of the worm 12. One side of the first rotating seat 15 and the second rotating seat 16 are fixedly installed on the outside of one side of the positioning frame 8. A drive gear 13 is fixedly installed at the bottom end of the worm 12.

[0040] Several abrasive rollers 17 are rotatably fitted inside one side of the stainless steel tube release cylinder 3. Each abrasive roller 17 has a limiting rod 18 fixedly installed inside it. The top and bottom ends of the limiting rod 18 are rotatably engaged with positioning seats 19. One side of the positioning seat 19 is fixedly installed outside one side of the stainless steel tube release cylinder 3. A limiting gear 20 is fixedly installed outside one side of the limiting rod 18. One side of the limiting gear 20 is meshed with the internal teeth of one side of the double-sided gear ring 21.

[0041] Each abrasive roller 17 has an embedded and fixed curved glass sheet 24 on one side.

[0042] In this embodiment, before using the natural enemy insect release device for the control of forest pests and diseases, the following preparations are made: the operator unscrews the cover 34 on one side of the stainless steel tube release cylinder 3, puts adult flower beetles, ground beetles and other reptile natural enemy insects into the stainless steel tube release cylinder 3, and then tightens the cover 34 to complete the seal; at this time, the support frame 35 at the bottom of the drone body 1 can stably support the device on the ground, avoiding direct contact between the stainless steel tube release cylinder 3 and the ground, which may cause damage or pollution.

[0043] Once the device is ready, the drone body 1, carrying the overall structure, flies to the target area for forest pest and disease control. The intermittent drive component then starts operating: the control motor 6 is powered on, and its output drives the coaxially fixed rotating shaft 5 to rotate at a constant speed. The rotating shaft 5 synchronously drives the externally fixed first turntable 7 and second turntable 22 to rotate. Because the first turntable 7 has a first arc-shaped rack 14 fixed to one side, and the second turntable 22 has a second arc-shaped rack 23 fixed to one side, and both move in a circular motion with the rotating shaft 5, they can intermittently engage with the corresponding components. This intermittent characteristic ensures that the device can process several equally angled stainless steel tube release cylinders 3 in batches, avoiding the simultaneous operation of all stainless steel tube release cylinders 3, which would lead to concentrated insect release and uneven distribution.

[0044] When the second arc-shaped rack 23 corresponding to a certain stainless steel tube release cylinder 3 rotates with the second turntable 22 to mesh with the drive gear 13, the second arc-shaped rack 23 drives the drive gear 13 to rotate. When the drive gear 13 rotates, it will drive the worm gear 12 to rotate synchronously between the first rotating seat 15 and the second rotating seat 16. When the worm gear 12 rotates, it will drive the worm wheel 11 meshing on one side to rotate simultaneously, thereby driving the rotating rod 10 to rotate around the rotating engagement point at the top of the positioning frame 8. The rotating rod 10 is fixed through the sealing cover plate 9. Finally, the sealing cover plate 9 flips with the rotating rod 10, realizing the opening at the bottom of the stainless steel tube release cylinder 3, providing a channel for insect release (the sealing ring at the bottom of the outer sleeve 4 and the outside of the opening of the stainless steel tube release cylinder 3 can ensure the sealing and stability of the connection between the two).

[0045] As the sealing cover 9 opens, the first arc-shaped rack 14 on the first turntable 7 rotates with the turntable until it meshes with the double-sided gear ring 21, causing the double-sided gear ring 21 to rotate. The inner teeth of the double-sided gear ring 21 mesh with the limiting gear 20, and the limiting gear 20 passes through the limiting rod 18 fixed inside the grinding roller 17. The limiting rod 18 is supported by the positioning seat 19 (fixed outside the stainless steel tube release cylinder 3). Therefore, the rotation of the double-sided gear ring 21 drives the limiting gear 20 and the limiting rod 18 to rotate synchronously, ultimately causing the grinding roller 17 to rotate around its own axis. At this time, the curved glass plate 24 embedded and fixed on one side of the abrasive roller 17 rotates with the roller body to face the inside of the stainless steel tube release cylinder 3, replacing the original abrasive surface to contact the insect. The curved glass plate 24 has a smooth surface without protrusions and a low coefficient of friction, which can prevent the legs of crawling insects from getting tangled or stuck, allowing the insects to climb smoothly to the release port, reducing mechanical damage caused by prolonged stay and exhaustion or limb tangling, significantly improving the success rate of climbing out. Moreover, after the insects climb out, they are full of energy, and their subsequent predation and reproduction capabilities are not affected. At the same time, the smooth inner wall makes the release path continuous, avoiding insects getting stuck or clogging the release port, and reducing the waste of release quantity.

[0046] After all the stainless steel tube release cylinders 3 have released insects in sequence, the control motor 6 starts to run in reverse, driving the rotating shaft 5 to rotate in reverse, which in turn drives the first turntable 7 and the second turntable 22 to rotate in reverse synchronously. At this time, the first arc-shaped rack 14 moves in the opposite direction with the first turntable 7, re-engages with the double-sided gear ring 21 corresponding to each stainless steel tube release cylinder 3, and drives the double-sided gear ring 21 to rotate in the opposite direction; the double-sided gear ring 21 drives the limiting gear 20 to rotate in the opposite direction through the inner teeth, so that the limiting rod 18 drives the abrasive roller 17 to rotate in the opposite direction around its own axis until the abrasive surface of the abrasive roller 17 faces the inside of the stainless steel tube release cylinder 3 again, and the arc-shaped glass sheet 24 is stored between the stainless steel tube release cylinder 3 and the outer tube 4, completing the inner wall state reset. At this time, the inner wall restores the friction support characteristics, providing climbing support for the subsequent secondary introduction of insects, so that the insects can climb to different heights on the inner wall of the stainless steel tube release cylinder 3, solving the problem of clustering at the bottom of the stainless steel tube release cylinder 3, avoiding the risk of body surface damage and suffocation caused by squeezing, and simulating the natural touch, reducing the stress response caused by the monotonous environment, maintaining the population activity, and ensuring that the insects are in the best physiological state when released.

[0047] At the same time, the second arc-shaped rack 23 on the second turntable 22 rotates in the opposite direction with the turntable and meshes with the drive gear 13 of each opening and closing component in the opposite direction, driving the drive gear 13 and the worm 12 to rotate in the opposite direction; the worm 12, through meshing with the worm wheel 11, causes the rotating rod 10 to flip in the opposite direction, and finally drives the sealing cover plate 9 to re-fit the bottom opening of the stainless steel pipe release cylinder 3, realizing the closure and sealing of all stainless steel pipe release cylinders 3.

[0048] When the first arc-shaped rack 14 and the second arc-shaped rack 23 disengage from all double-sided gear rings 21 and drive gears 13 respectively, the control motor 6 stops operating, and the entire device returns to its initial state. At this time, the operator can unscrew the cover 34 and reintroduce insects into the stainless steel tube release cylinder 3. The insects can freely climb to various heights on the inner wall of the stainless steel tube release cylinder 3 using the abrasive surface of the abrasive roller 17, maintaining population activity and preparing for the next release.

[0049] Example 2: Please refer to Figure 11 - Figure 12 This embodiment further illustrates Example 1, wherein each stainless steel tube release cylinder 3 is provided with a blower assembly inside near the fixed base 2.

[0050] The blower assembly includes a connecting block 25 and a drive motor 28. The connecting block 25 is fixedly installed on the outside of the rotating shaft 5 near the fixed base 2. The drive motor 28 is located at the top center of the stainless steel tube release cylinder 3. One end of the connecting block 25 is connected to the internal battery of the UAV body 1. An auxiliary frame 27 is fixedly installed through the outside of the drive motor 28. One end of the auxiliary frame 27 is fixedly installed on the inner wall of the stainless steel tube release cylinder 3. A fan blade 29 is fixedly installed at the output end of the drive motor 28. A circular frame 32 is fixedly installed on the inner wall of the stainless steel tube release cylinder 3 on the side away from the fixed base 2 from the fan blade 29.

[0051] A protective net 33 is fixedly installed inside the ring frame 32. The wiring terminal of the drive motor 28 is connected to a connecting plate 31. The input end of the connecting plate 31 is installed through the outside of one side of the stainless steel tube release cylinder 3. A connecting block 30 is fixedly connected to the input end of the connecting plate 31. Several air inlets 26 are opened at equal angles around the edge of the stainless steel tube release cylinder 3 near the fixed base 2.

[0052] In this embodiment, by adding a blowing component inside each stainless steel tube release cylinder 3 near the fixed base 2, the insect release effect and the device's cleaning ability are further optimized. Its working principle needs to be explained in conjunction with the release process of Embodiment 1, as follows:

[0053] When the sealing cover 9 is opened to release insects, the blowing assembly starts simultaneously. First, the power supply path is formed: the connecting block 25, which is fixedly installed on the outside of the rotating shaft 5 near the fixed base 2, has one end pre-connected to the internal battery of the drone body 1 to form a power supply head; when the rotating shaft 5 drives the first turntable 7 and the second turntable 22 to rotate to one side of a stainless steel tube release cylinder 3 and enter the release state, the connecting block 25 contacts the conducting block 30. The conducting block 30 acts as an intermediate conductor, so that the connecting block 25, the conducting block 30, the connecting plate 31 and the drive motor 28 form a complete circuit path, and the drive motor 28 obtains power and starts to run.

[0054] After the drive motor 28 starts running, its output end drives the fixedly installed fan blade 29 to rotate at high speed. Since the fan blade 29 is located at the top center of the stainless steel tube release cylinder 3, and the stainless steel tube release cylinder 3 has several equally angled air inlets 26 at the edge near the fixed base 2, the negative pressure generated by the rotation of the fan blade 29 will draw in outside air through the air inlets 26, forming a downward stable airflow. The airflow flows downward along the inner wall of the stainless steel tube release cylinder 3, directly acting on the crawling insects inside the cylinder. At this time, the insects are climbing towards the bottom opening by relying on the smooth surface of the curved glass plate 24. The airflow can provide downward auxiliary thrust to help the weaker insects climb out smoothly, while avoiding the insects from crowding near the release port, further improving the release efficiency.

[0055] In addition, a circular frame 32 is fixedly installed on the inner wall of the stainless steel tube release cylinder 3 below the fan blade 29. The protective net 33 inside the frame plays a crucial protective role: on the one hand, it prevents insects from accidentally touching the high-speed rotating fan blade 29 during climbing, thus preventing damage to their body surface and ensuring their survival; on the other hand, it can intercept larger impurities carried in the airflow, such as fallen leaves and dust inhaled from the outside, preventing impurities from entering the stainless steel tube release cylinder 3 and contaminating the insects or clogging the release port. After the insects are completely released, the airflow continuously generated by the fan blade 29 can also blow air to clean the inside of the stainless steel tube release cylinder 3, blowing out residual insect excrement, fine debris, and other impurities from the bottom opening, achieving self-cleaning of the device and providing a clean environment for subsequent re-entry of insects, preventing residual impurities from affecting the survival of the insects.

[0056] After the stainless steel tube release cylinder 3 has completed its release and cleaning, the rotating shaft 5 continues to drive the connecting block 25 to rotate, causing it to disengage from the current stainless steel tube release cylinder 3's connecting block 30, thus breaking the circuit and stopping the drive motor 28. When the next stainless steel tube release cylinder 3 enters the release state, the connecting block 25 will re-engage with the corresponding stainless steel tube release cylinder 3's connecting block 30, repeating the above-mentioned air-assisted and self-cleaning process. This ensures that all stainless steel tube release cylinders 3 can achieve efficient release and internal cleaning with the help of airflow during the batch release process, further optimizing the practicality of the device and the insect release effect.

[0057] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0058] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A natural enemy insect releasing device for forest pest control, comprising a UAV body (1), a fixing seat (2) fixed at the bottom end of the UAV body (1), and a plurality of stainless steel pipe releasing barrels (3) fixed at the bottom end of the fixing seat (2) at equal angles, characterized in that: A rotating shaft (5) is vertically arranged between a plurality of the stainless steel pipe release cylinders (3), an intermittent driving assembly is arranged outside the rotating shaft (5), an opening and closing assembly is arranged at the bottom opening of each stainless steel pipe release cylinder (3), an outer sleeve (4) is sleeved outside each stainless steel pipe release cylinder (3), a switching assembly is arranged between each stainless steel pipe release cylinder (3) and the outer sleeve (4), and a blowing assembly is arranged inside each stainless steel pipe release cylinder (3) close to the fixed base (2). The switching assembly comprises a plurality of sanding rollers (17) and a double-sided gear ring (21), a plurality of the sanding rollers (17) are arranged at equal angles between the stainless steel pipe release cylinder (3) and the outer sleeve (4), and the double-sided gear ring (21) is rotatably and clampingly installed at the top side outside the outer sleeve (4). The intermittent driving assembly comprises a control motor (6), a first rotating disc (7) and a second rotating disc (22), the control motor (6) is embeddedly installed at one side inside the fixed base (2), the first rotating disc (7) is fixedly penetrated and installed at the outside of the rotating shaft (5) close to the double-sided gear ring (21), and the second rotating disc (22) is fixedly penetrated and installed at the outside of the rotating shaft (5) close to the opening and closing assembly. The opening and closing assembly comprises a positioning frame (8) and a sealing cover plate (9), the positioning frame (8) is fixedly installed at one side outside the outer sleeve (4), and the sealing cover plate (9) is attached to the outside of the opening end of the stainless steel pipe release cylinder (3). A rotating rod (10) is fixedly penetrated and installed at one side of the sealing cover plate (9), both ends of the rotating rod (10) are rotatably and clampingly installed at the top side outside the positioning frame (8), a worm gear (11) is fixedly penetrated and installed inside the rotating rod (10), and a worm (12) is vertically and meshingly connected to one side of the worm gear (11). One side of each sanding roller (17) is rotatably and attached to one side inside the stainless steel pipe release cylinder (3), a limiting rod (18) is fixedly penetrated and installed inside each sanding roller (17), a positioning seat (19) is rotatably and clampingly installed at the top end and the bottom end of the limiting rod (18), the positioning seat (19) is fixedly installed at one side outside the stainless steel pipe release cylinder (3), a limiting gear (20) is fixedly penetrated and installed at one side outside the limiting rod (18), and one side of the limiting gear (20) is meshingly connected with the inner teeth of one side of the double-sided gear ring (21).

2. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 1, characterized in that: The bottom end of the unmanned aerial vehicle body (1) is fixedly installed with a support frame (35), and one side of each stainless steel pipe release cylinder (3) close to the fixed base (2) is threadedly connected with a shielding cover (34).

3. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 1, characterized in that: A first arc-shaped rack (14) is fixedly installed at one side outside the first rotating disc (7), a second arc-shaped rack (23) is fixedly installed at one side outside the second rotating disc (22), and the output end of the control motor (6) is coaxially fixed with one end of the rotating shaft (5).

4. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 1, characterized in that: The bottom end of the outer sleeve (4) and the outside of the opening end of the stainless steel pipe release cylinder (3) are fixedly connected through a sealing ring.

5. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 1, characterized in that: The top end and the bottom end of the worm (12) are respectively provided with a first rotating seat (15) and a second rotating seat (16) which are rotatably installed, one side of the first rotating seat (15) and the second rotating seat (16) is fixedly installed on one side of the positioning frame (8), and the bottom end of the worm (12) is fixedly installed with a driving gear (13).

6. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 1, characterized in that: One side of each of the grinding rollers (17) is embeddedly and fixedly attached with an arc-shaped glass sheet (24).

7. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 1, characterized in that: The blowing assembly comprises an on-block (25) and a driving motor (28), the on-block (25) is fixedly installed on one side of the rotating shaft (5) near the fixed seat (2), the driving motor (28) is arranged at the top middle part of the stainless steel tube release cylinder (3), one end of the on-block (25) is connected with the internal battery of the unmanned aerial vehicle body (1), the external part of the driving motor (28) is fixedly installed with an auxiliary frame (27), one end of the auxiliary frame (27) is fixedly installed on the inner wall of the stainless steel tube release cylinder (3), the output end of the driving motor (28) is fixedly installed with a fan blade (29), and the stainless steel tube release cylinder (3) is fixedly installed with a ring frame (32) on the inner wall on the side of the fan blade (29) away from the fixed seat (2).

8. The natural enemy insect releasing device for preventing and treating forest diseases and pests according to claim 7, characterized in that: The internal part of the ring frame (32) is fixedly installed with a protective net (33), the wiring end of the driving motor (28) is fixedly connected with an on-board (31), the input end of the on-board (31) is fixedly installed on one side of the stainless steel tube release cylinder (3), the input end of the on-board (31) is fixedly connected with a on-block (30), and a plurality of air inlet holes (26) are equiangularly and circumferentially arranged on the inner wall of the stainless steel tube release cylinder (3) near the edge of the fixed seat (2).

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