Plant protection unmanned aerial vehicle capable of conveniently releasing biological natural enemy clamping balls
By combining a limiting, clamping, and stirring structure with a stepper motor, the design of an agricultural drone solves the problem of uneven release of biological predator-induced pellets, achieving uniform pellet delivery and drone stability.
Patent Information
- Application Number
- CN202511368639.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2025-12-12
AI Technical Summary
Existing agricultural drones tend to accumulate biological enemy pellets when releasing them, leading to uneven discharge and affecting the release effect.
It adopts a combination of limiting structure, clamping structure, stirring structure and stepper motor, etc. The drone body drives the hopper to move, the stirring structure prevents the balls from accumulating, and the stepper motor controls the dispensing tube to achieve on-demand dispensing.
It achieves uniform release of biological predator pellets, improves release efficiency and effectiveness, prevents pellet accumulation in the hopper, and enhances the stability of the drone.
Smart Images

Figure CN121106701A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of plant protection unmanned aerial vehicles, in particular to a plant protection unmanned aerial vehicle facilitating the release of biological enemy ball. BACKGROUND
[0002] With the rapid development of agricultural green prevention and control technology, biological control has become one of the core means of modern agricultural pest control due to its environmental friendliness and lack of chemical pesticide residues. Among them, the technology of using biological enemies to control pests requires the precise release of enemy individuals or egg particles into the crop field through a carrier. The biological enemy ball, as a standardized carrier integrating enemy carriers, nutrient medium and protective shell, is widely used in large-scale biological control operations due to its convenient transportation and high enemy survival rate. At the same time, plant protection unmanned aerial vehicles gradually replace traditional methods such as manual sowing and ground mechanical release due to their high efficiency, wide coverage and adaptability to complex terrain, and become the core operation platform for the release of biological enemy balls, which is an important technical development direction in the field of agricultural plant protection.
[0003] The existing plant protection unmanned aerial vehicles for releasing biological enemy balls mostly use augers to push the balls to the discharge port, which easily forms a corner stagnation area. In addition, some balls have slight stickiness on their surface due to the presence of nutrient medium, and multiple balls in the corner stagnation area are prone to mutual adhesion, which easily leads to uneven discharge and affects the release of biological enemy balls. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a plant protection unmanned aerial vehicle facilitating the release of biological enemy balls, which solves the problem of uneven discharge and affects the release of biological enemy balls when the traditional plant protection unmanned aerial vehicle releases biological enemy balls.
[0005] To achieve the above purpose, the present application realizes the following technical scheme: a plant protection unmanned aerial vehicle facilitating the release of biological enemy balls, comprising a unmanned aerial vehicle body and a hopper, the bottom of the unmanned aerial vehicle body is symmetrically fixedly connected with supporting legs, the inside of the unmanned aerial vehicle body is provided with a clamping structure, one side of the hopper is fixedly connected with a feeding hopper, the top of the hopper is fixedly installed with a stirring structure, the outer wall of the hopper is symmetrically fixedly connected with a limiting structure, the bottom of the hopper is fixedly connected with a discharge pipe, one side of the discharge pipe is provided with a through slot, the outer wall of the discharge pipe is symmetrically fixedly connected with a mounting plate, the opposite side of the mounting plate is rotatably connected with a third rotating shaft, the outer wall of the third rotating shaft is fixedly installed with a split gear, one end of the third rotating shaft is fixedly connected with a stepping motor, one side of the stepping motor is fixedly installed on one side of one of the mounting plates.
[0006] By adopting the above technical scheme, the hopper is installed on the unmanned aerial vehicle body through the limiting structure, and the hopper is further limited on the unmanned aerial vehicle body through the clamping structure, so that the unmanned aerial vehicle body can drive the hopper to move according to the demand, the biological enemy ball in the hopper is stirred and vibrated to a certain extent through the stirring structure, so that the biological enemy ball cannot be accumulated and discharged, the third shaft is driven to rotate through the stepping motor, and the biological enemy ball in the discharge pipe is discharged according to the demand through the weight tooth, so that the on-demand release is realized, and the problem that the traditional biological enemy ball releasing plant protection unmanned aerial vehicle is prone to accumulation when releasing the biological enemy ball, resulting in uneven discharge and affecting the release of the biological enemy ball is solved.
[0007] Preferably, the clamping structure comprises two first clamping plates, and electric push rods are symmetrically and fixedly installed on the sides away from each other of the first clamping plates.
[0008] Preferably, the stirring structure comprises a servo motor, the servo motor is fixedly installed on the top of the hopper, a first shaft is fixedly connected to the output end of the servo motor, stirring rods are uniformly fixedly connected to the outer wall of the first shaft, a fixed plate is fixedly connected to the side of the first shaft, and the both ends of the fixed plate are fixedly connected to the inner wall of the hopper.
[0009] Preferably, a first gear is fixedly connected to the side of the first shaft, a second gear is meshingly connected to the tooth end of the first gear, and a second shaft is fixedly connected to the middle of the second gear.
[0010] Preferably, the top end of the second shaft is rotatably connected to the inner wall of the hopper, and an eccentric wheel is fixedly connected to the outer wall of the second shaft.
[0011] Preferably, the limiting structure comprises a moving block and a handle, one end of the handle is fixedly connected to the outer wall of the hopper, and the outer wall of the moving block is slidably connected to the inside of the unmanned aerial vehicle body.
[0012] Preferably, the other end of the handle is fixedly connected with a connecting column, and one end of the connecting column is fixedly connected with a conical block.
[0013] Preferably, the side of the moving block is symmetrically and fixedly connected with a first spring, one end of the first spring is fixedly connected to the inside of the unmanned aerial vehicle body, and the inside of the moving block is symmetrically and fixedly connected with a second spring.
[0014] Preferably, one end of the second spring is fixedly connected with a limiting block, and the outer wall of the limiting block is slidably connected to the inside of the moving block.
[0015] Preferably, the top of the limiting block is fixedly connected with a poking block, and the outer wall of the poking block is slidingly connected to the top of the moving block.
[0016] Working principle: in use, the biological enemy ball is placed in the stock bin through the feeding hopper for temporary storage, the stock bin is installed through the top of the unmanned aerial vehicle body, the handle is moved downward to drive the conical block to push the two limiting blocks to slide in the moving block, when the conical block moves to below the limiting block, the limiting block is clamped into the gap between the conical block and the handle by the reset of the second spring, so that the stock bin is limited on the unmanned aerial vehicle body, and different sizes of stock bins are installed through the first spring, meanwhile, the stock bin cannot be prevented from vibrating, the first clamping plate is driven by the electric push rod to move close to or away from each other, so that the second clamping plate clamps the stock bin, and the spring damper prevents the vibrating stock bin from affecting the unmanned aerial vehicle body.
[0017] The unmanned aerial vehicle body provides basic flight and control, moves the stock bin according to requirements, and then drives the first rotating shaft to rotate through the servo motor, so that the stirring rod stirs each biological enemy ball in the stock bin, at the same time, the rotation of the first rotating shaft drives the first gear to rotate, so that the second rotating shaft rotates to drive the eccentric wheel to rotate with the second rotating shaft as the center, so as to generate a certain eccentric force to drive the stock bin to vibrate, so that the stock bin is vibrated while each biological enemy ball in the stock bin is stirred, further preventing each biological enemy ball from accumulating in the stock bin, and the third rotating shaft is driven to rotate through the stepping motor, so that the weight tooth discharges the biological enemy ball in the discharge pipe according to requirements, so as to realize on-demand release.
[0018] The present application provides a plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls.
[0019] 1、The stock bin is installed on the unmanned aerial vehicle body through the limiting structure, and the stock bin is further limited on the unmanned aerial vehicle body through the clamping structure, so that the unmanned aerial vehicle body can move the stock bin according to requirements, the biological enemy ball in the stock bin is stirred and vibrated to a certain extent through the stirring structure, so as to prevent the biological enemy ball from accumulating together and being discharged, the third rotating shaft is driven to rotate through the stepping motor, so that the weight tooth discharges the biological enemy ball in the discharge pipe according to requirements, so as to realize on-demand release, and the problem that the traditional plant protection unmanned aerial vehicle for releasing biological enemy balls is prone to accumulation when releasing the biological enemy balls, resulting in uneven discharge and affecting the release of the biological enemy balls is solved.
[0020] 2、The first rotating shaft is driven to rotate on the fixed plate by the servo motor, so that the stirring rod stirs each biological enemy ball in the hopper, at the same time, the rotation of the first rotating shaft drives the first gear to rotate, and the eccentric wheel rotates with the second rotating shaft as the center, so that a certain eccentric force is generated to drive the hopper to vibrate, so that each biological enemy ball in the hopper is stirred while the hopper is vibrated, and further accumulation of each biological enemy ball in the hopper is prevented.
[0021] 3、The handle is moved downward, the connecting column and the conical block are moved downward, the moving block is pulled, the conical block pushes the two limiting blocks to slide in the moving block, and the second spring is compressed, when the conical block moves to below the limiting block, the limiting block is clamped into the gap between the conical block and the handle through the reset of the second spring, so that the hopper is limited on the unmanned aerial vehicle body, and through the setting of the first spring, different sizes of hoppers can be installed on the unmanned aerial vehicle body, and the hoppers cannot be prevented from vibrating, and the practicability is enhanced.
[0022] 4、The first clamping plate is driven to move close to or away from each other by the electric push rod, so that the second clamping plate clamps the hopper, and through the setting of the spring damper, when the hopper is vibrated by the stirring structure, the stability of the unmanned aerial vehicle body is prevented from being affected by the vibrating hopper, the hopper is further limited on the unmanned aerial vehicle body, and different sizes of hoppers can be adapted. BRIEF DESCRIPTION OF DRAWINGS
[0023] Figure 1 A three-dimensional structure schematic diagram of the plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls is provided;
[0024] Figure 2 A hopper local structure schematic diagram of the plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls is provided;
[0025] Figure 3 A hopper internal structure schematic diagram of the plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls is provided;
[0026] Figure 4 A discharge pipe internal structure schematic diagram of the plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls is provided;
[0027] Figure 5 A moving block internal structure schematic diagram of the plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls is provided;
[0028] Figure 6 A first clamping plate local structure schematic diagram of the plant protection unmanned aerial vehicle for conveniently releasing biological enemy balls is provided.
[0029] Wherein, 1, unmanned aerial vehicle body; 2, support leg; 3, stock bin; 4, servo motor; 5, feed hopper; 6, discharge pipe; 7, stepping motor; 8, mounting plate; 9, split tooth; 10, moving block; 11, handle; 12, first spring; 13, electric push rod; 14, first clamping plate; 15, second clamping plate; 16, spring damper; 17, second rotating shaft; 18, eccentric wheel; 19, first rotating shaft; 20, first gear; 21, second gear; 22, stirring rod; 23, fixed plate; 24, third rotating shaft; 25, through slot; 26, limit block; 27, second spring; 28, push block; 29, tapered block; 30, connecting column. DETAILED DESCRIPTION
[0030] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.
[0031] Please refer to the drawings of the present application Figure 1 - the drawings of the present application Figure 6 The plant protection unmanned aerial vehicle of the present application provides a kind of biological enemy card ball convenient release, including unmanned aerial vehicle body 1 and stock bin 3, the bottom of unmanned aerial vehicle body 1 is fixedly connected with support leg 2 in symmetry, the inside of unmanned aerial vehicle body 1 is provided with clamping structure, one side of stock bin 3 is fixedly connected with feed hopper 5, the top of stock bin 3 is fixedly installed with stirring structure, the outer wall of stock bin 3 is fixedly connected with limit structure in symmetry, the bottom of stock bin 3 is fixedly connected with discharge pipe 6, the side of discharge pipe 6 is provided with through slot 25, the outer wall of discharge pipe 6 is fixedly connected with mounting plate 8 in symmetry, the opposite side of mounting plate 8 is rotatably connected with third rotating shaft 24, the outer wall of third rotating shaft 24 is fixedly installed with split tooth 9, one end of third rotating shaft 24 is fixedly connected with stepping motor 7, one side of stepping motor 7 is fixedly installed in the side of one of mounting plate 8.
[0032] Specifically, the drone body 1 provides basic flight and control, and its support frame is U-shaped. A limiting structure mounts the feed hopper 3 onto the drone body 1. The feed hopper 3 temporarily stores the various biological enemy spheres, and its funnel-shaped bottom allows the spheres to be discharged downwards under gravity. The support legs 2 provide support for the drone body 1, facilitating start-up and stopping. A clamping structure further limits the feed hopper 3 to the drone body 1, allowing the drone body 1 to move the feed hopper 3 as needed. The feeding hopper 5 facilitates the placement of the biological enemy spheres into the feed hopper 3. A stirring structure ensures the biological enemy spheres within the feed hopper 3 are properly stirred. A certain degree of stirring and vibration is performed to prevent the pellets from piling up and being unable to be discharged. The discharge pipe 6 is fixed to the bottom of the hopper 3, so that the biological enemy pellets inside the hopper 3 enter the discharge pipe 6 through the funnel-shaped bottom. The slot 25 facilitates the rotation of the component gear 9. The stepper motor 7 and the third rotating shaft 24 are installed through the mounting plate 8. The operation of the stepper motor 7 drives the third rotating shaft 24 to rotate, which in turn causes the component gear 9 to run, discharging the biological enemy pellets in the discharge pipe 6 as needed. This achieves on-demand delivery and solves the problem that traditional agricultural drones that release biological enemy pellets tend to accumulate during release, resulting in uneven discharge and affecting the release of the biological enemy pellets.
[0033] Please see the appendix Figure 2 Appendix Figure 6 The clamping structure includes two first clamping plates 14. An electric push rod 13 is symmetrically fixedly installed on the side of the first clamping plates 14 that is far apart from each other. One side of the electric push rod 13 is fixedly installed inside the UAV body 1. A spring damper 16 is symmetrically fixedly installed on the side of the first clamping plates 14 that is far apart from each other. A second clamping plate 15 is fixedly installed on one side of the spring damper 16.
[0034] Specifically, the electric push rod 13 is used to install the first clamping plate 14 on the drone body 1. When the electric push rod 13 is running, it drives the first clamping plate 14 to move closer or further away from each other, thereby driving the second clamping plate 15 to move closer or further away from each other. The second clamping plate 15 clamps the hopper 3. The spring damper 16 prevents the vibrating hopper 3 from affecting the stability of the drone body 1 when the hopper 3 is vibrated by the stirring structure. The second clamping plate 15 keeps the hopper 3 clamped at all times.
[0035] Please see the appendix Figure 1 -Appendix Figure 3The stirring structure comprises a servo motor 4 fixedly installed on one side of the top of the bin 3, a first rotating shaft 19 fixedly connected to the output end of the servo motor 4, a plurality of stirring rods 22 fixedly connected to the outer wall of the first rotating shaft 19, a fixed plate 23 fixedly connected to one side of the first rotating shaft 19, and the two ends of the fixed plate 23 fixedly connected to the inner wall of the bin 3. One side of the first rotating shaft 19 is fixedly connected with a first gear 20, the tooth end of the first gear 20 is engagedly connected with a second gear 21, and the middle part of the second gear 21 is fixedly connected with a second rotating shaft 17. The top end of the second rotating shaft 17 is rotatably connected to the inner wall of the bin 3, and the outer wall of the second rotating shaft 17 is fixedly connected with an eccentric wheel 18.
[0036] Specifically, through the operation of the servo motor 4, the first rotating shaft 19 is driven to rotate on the fixed plate 23, thereby driving the stirring rods 22 to operate and stir each biological enemy card ball in the bin 3. At the same time, the rotation of the first rotating shaft 19 drives the first gear 20 to rotate, thereby driving the second gear 21 to rotate, so that the second rotating shaft 17 rotates and drives the eccentric wheel 18 to rotate around the second rotating shaft 17 as the center, thereby generating a certain eccentric force to drive the bin 3 to vibrate, so that each biological enemy card ball in the bin 3 is stirred while the bin 3 is vibrated, further preventing each biological enemy card ball from accumulating in the bin 3.
[0037] Please refer to the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 5 The limiting structure comprises a moving block 10 and a handle 11, one end of the handle 11 is fixedly connected to the outer wall of the bin 3, and the outer wall of the moving block 10 is slidably connected to the inside of the unmanned aerial vehicle body 1. The other end of the handle 11 is fixedly connected with a connecting column 30, one end of the connecting column 30 is fixedly connected with a conical block 29. One side of the moving block 10 is fixedly connected with a first spring 12 in a symmetrical manner, one end of the first spring 12 is fixedly connected to the inside of the unmanned aerial vehicle body 1, and the inside of the moving block 10 is fixedly connected with a second spring 27 in a symmetrical manner. One end of the second spring 27 is fixedly connected with a limiting block 26, and the outer wall of the limiting block 26 is slidably connected to the inside of the moving block 10. The top of the limiting block 26 is fixedly connected with a poking block 28, and the outer wall of the poking block 28 is slidably connected to the top of the moving block 10.
[0038] Specifically, by fixing the handle 11 and the hopper 3, when the hopper 3 is installed on the UAV body 1, the handle 11 is moved downward, thereby moving the connecting column 30 and the tapered block 29 downward, and then pulling the moving block 10, so that the tapered block 29 pushes the two limiting blocks 26 to slide in the moving block 10 by using the inclined surface of the tapered block 29, and compresses the second spring 27, when the tapered block 29 moves to the position below the limiting block 26, the limiting block 26 is clamped into the gap between the tapered block 29 and the handle 11 by using the reset of the second spring 27, thereby limiting the handle 11 on the moving block 10, and further limiting the hopper 3 on the UAV body 1, and through the setting of the first spring 12, different sizes of the hopper 3 can be installed on the UAV body 1, and at the same time, the hopper 3 can not be prevented from vibrating to a certain extent, thereby enhancing the practicability.
[0039] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and changes can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. An agricultural drone that facilitates the release of biological predator pods, comprising a drone body (1) and a feed hopper (3), characterized in that: The bottom of the UAV body (1) is symmetrically fixedly connected with support legs (2). The UAV body (1) is provided with a clamping structure inside. The feed hopper (5) is fixedly connected to one side of the hopper (3). The top of the hopper (3) is fixedly installed with a stirring structure. The outer wall of the hopper (3) is symmetrically fixedly connected with a limiting structure. The bottom of the hopper (3) is fixedly connected with a discharge pipe (6). A through groove (25) is opened on one side of the discharge pipe (6). The outer wall of the discharge pipe (6) is symmetrically fixedly connected with an installation plate (8). The opposite side of the installation plate (8) is rotatably connected with a third rotating shaft (24). The outer wall of the third rotating shaft (24) is fixedly installed with a component gear (9). One end of the third rotating shaft (24) is fixedly connected with a stepper motor (7). One side of the stepper motor (7) is fixedly installed on one side of one of the installation plates (8).
2. The agricultural drone for conveniently releasing biological predator pods according to claim 1, characterized in that: The clamping structure includes two first clamping plates (14). An electric push rod (13) is symmetrically fixedly installed on the side of the first clamping plate (14) away from each other. One side of the electric push rod (13) is fixedly installed inside the UAV body (1). A spring damper (16) is symmetrically fixedly installed on the side of the first clamping plate (14) away from each other. A second clamping plate (15) is fixedly installed on one side of the spring damper (16).
3. The agricultural drone for conveniently releasing biological predator pods according to claim 1, characterized in that: The stirring structure includes a servo motor (4), one side of which is fixedly installed on the top of the hopper (3). The output end of the servo motor (4) is fixedly connected to a first rotating shaft (19). Stirring rods (22) are evenly fixedly connected to the outer wall of the first rotating shaft (19). A fixing plate (23) is fixedly connected to one side of the first rotating shaft (19). Both ends of the fixing plate (23) are fixedly connected to the inner wall of the hopper (3).
4. The agricultural drone for conveniently releasing biological predator pods according to claim 3, characterized in that: A first gear (20) is fixedly connected to one side of the first shaft (19), and a second gear (21) is meshed with the tooth end of the first gear (20). A second shaft (17) is fixedly connected to the middle of the second gear (21).
5. The agricultural drone for conveniently releasing biological predator pods according to claim 4, characterized in that: The top end of the second rotating shaft (17) is rotatably connected to the inner wall of the hopper (3), and an eccentric wheel (18) is fixedly connected to the outer wall of the second rotating shaft (17).
6. The agricultural drone for conveniently releasing biological predator pods according to claim 1, characterized in that: The limiting structure includes a moving block (10) and a handle (11). One end of the handle (11) is fixedly connected to the outer wall of the hopper (3), and the outer wall of the moving block (10) is slidably connected to the inside of the drone body (1).
7. The agricultural drone for conveniently releasing biological predator pods according to claim 6, characterized in that: The other end of the handle (11) is fixedly connected to a connecting post (30), and one end of the connecting post (30) is fixedly connected to a conical block (29).
8. The agricultural drone for conveniently releasing biological predator pods according to claim 6, characterized in that: A first spring (12) is symmetrically fixedly connected to one side of the moving block (10), and one end of the first spring (12) is fixedly connected to the inside of the UAV body (1). A second spring (27) is symmetrically fixedly connected to the inside of the moving block (10).
9. An agricultural drone for conveniently releasing biological predator pods according to claim 8, characterized in that: One end of the second spring (27) is fixedly connected to a limiting block (26), and the outer wall of the limiting block (26) is slidably connected to the inside of the moving block (10).
10. An agricultural drone for conveniently releasing biological predator pods according to claim 9, characterized in that: The top of the limiting block (26) is fixedly connected to a toggle block (28), and the outer wall of the toggle block (28) is slidably connected to the top of the moving block (10).