Flight prevention spraying equipment for agricultural unmanned aerial vehicle

Abstract

The utility model provides an agricultural unmanned aerial vehicle flying prevention spraying device, which belongs to the field of agricultural aviation and comprises an unmanned aerial vehicle body, a spraying mechanism for spraying pesticides at multiple angles is arranged at the bottom of the unmanned aerial vehicle body, and two groups of buffer components for absorbing impact force are arranged at the bottom of the spraying mechanism. According to the unmanned aerial vehicle, the spraying mechanism is arranged, a micro motor transmits power to a connecting pipe through meshing of a driving gear and a driven gear, a spraying head is driven to rotate and swing, multi-angle spraying is achieved, and the prevention and treatment effect is improved; ground counter-acting force is transmitted to the moving part through the sliding rod, the moving part pushes the connecting rod to rotate after being pressed, impact force in the vertical direction is converted into displacement in the horizontal direction, meanwhile, the spring is compressed or stretched, impact kinetic energy is converted into elastic potential energy to be stored, and therefore instant impact generated when the unmanned aerial vehicle body lands is relieved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural aviation, and more specifically, to an agricultural drone spraying device. Background Technology

[0002] Agricultural drone spraying equipment is an agricultural technology that uses drones equipped with spraying systems to precisely spray pesticides. It has significant advantages such as high efficiency, precision, and environmental friendliness.

[0003] A search revealed that Chinese Patent Publication No. CN218368308U discloses "a novel agricultural drone aerial spraying device, comprising: a main unit and a stabilizer. The main unit has lifting blades mounted on its top and a support frame mounted on its bottom. A water tank is mounted in the middle of the support frame, and a water pipe is connected to the bottom of the water tank. A spray bar is connected to the bottom of the water pipe via a water pump. The stabilizer frame is mounted on the bottom of the support frame. The beneficial effect of this novel agricultural drone aerial spraying device is that when the drone descends, it can touch the ground through its support feet. After the support feet touch the ground, the connecting rod at the top of the support feet moves through a sliding groove and a slider. During the upward movement of the support feet, the rotating rod in the middle drives the sliding block to slide through a rotating shaft. When the sliding block slides, the telescopic spring inside the telescopic rod acts as a buffer for the support feet, thereby preventing damage to the drone from a rapid descent." However, the following defects still exist:

[0004] (1) The spray bar of the device is directly connected to the bottom of the water tank through the water pipe and water pump. In farmland, the crop growth status and topography of different areas may vary. The fixed-angle spray bar cannot adjust the spray direction according to these differences, resulting in excessive spraying in some areas, causing waste of pesticide and potential pesticide damage, while insufficient spraying in some areas cannot achieve effective prevention and control.

[0005] (2) The device's support legs achieve buffering through a series of complex structures such as connecting rods, sliding grooves, sliders, rotating rods, rotating shafts, sliding blocks, and telescopic springs inside the telescopic rods. In actual flight and landing, such a complex mechanical structure is prone to failure, affecting the stability of the entire buffering system. Therefore, an agricultural drone aerial spraying device is proposed. Utility Model Content

[0006] The purpose of this utility model is to address the problem that in existing agricultural drone spraying devices, the spray bar is directly connected to the bottom of the water tank via a water pipe and a water pump. In farmland, the crop growth conditions and terrain may vary in different areas. The fixed-angle spray bar cannot adjust the spray direction according to these differences, resulting in excessive spraying in some areas, causing waste of pesticide and potential pesticide damage, while insufficient spraying in other areas fails to achieve effective pest control.

[0007] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0008] The present invention is as follows: an agricultural drone spraying device, including a drone body, the bottom of which is provided with a spraying mechanism for spraying pesticides at multiple angles, and the bottom of the spraying mechanism is provided with two sets of buffer components for absorbing impact force.

[0009] The spraying mechanism includes a medicine tank located at the bottom of the drone body. A water injection pipe is connected to the outer wall of the medicine tank, and a sealing cap is threaded to one end of the water injection pipe. A spray pipe is connected to the bottom of the medicine tank. A splicing component is fixedly connected to the side wall of the spray pipe. A micro motor is bolted to the side wall of the splicing component. A drive gear is fixedly connected to the output end of the micro motor. A driven gear is provided on one side of the drive gear and meshes with the drive gear. A connecting pipe is fixedly connected to the bottom of the driven gear. A spray head is connected to the bottom of the connecting pipe. A liquid outlet pipe is connected to the bottom of the medicine tank, and a solenoid valve is provided on the outside of the liquid outlet pipe.

[0010] As a preferred technical solution of this utility model, the buffer assembly includes two assemblies fixedly connected to the side wall of the medicine box. The bottom of the two assemblies is hinged with a connecting rod, and one end of the two connecting rods is hinged with a movable part. A spring is fixedly connected to the opposite side wall of the two movable parts. A sliding rod is slidably connected inside the spring, and support feet are fixedly connected to both ends of the sliding rod.

[0011] As a preferred technical solution of this utility model, a slide rail is fixedly connected to the bottom of the drone body, a slide bar is slidably connected to the bottom of the slide rail, a reserved hole is opened on the side wall of the slide rail and the slide bar, a fixing bolt is threadedly connected to the inner wall of the reserved hole, and a positioning element is threadedly connected to one end of the fixing bolt.

[0012] As a preferred technical solution of this utility model, a stirring motor is bolted to the side wall of the medicine box, a rotating rod is fixedly connected to the output end of the stirring motor, blades are welded to the side wall of the rotating rod, a storage battery is provided on the side wall of the medicine box, and the stirring motor is electrically connected to the storage battery.

[0013] As a preferred technical solution of this utility model, a liquid level sensor is provided on the inner wall of the medicine box, and the liquid level sensor is electrically connected to an external receiving device.

[0014] As a preferred technical solution of this utility model, the bottom of the support foot is provided with an elastic element, and the elastic element is made of rubber.

[0015] As a preferred technical solution of this utility model, the inner wall of the medicine box is provided with an anti-corrosion coating, and the anti-corrosion coating is made of epoxy resin.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. Through the set spraying mechanism, when in use, the liquid medicine is injected into the medicine tank through the water injection pipe, the sealing cap is tightened, and then the micro motor transmits power to the connecting pipe through the meshing of the drive gear and the driven gear, which drives the spray head to rotate and swing, so as to achieve multi-angle spraying, avoid the overlap or omission of liquid medicine, improve the coverage rate, and adjust the spraying angle according to different crop heights and terrains to enhance the adhesion rate of liquid medicine on both sides of the leaves and improve the control effect;

[0018] 2. Through the buffer components, when the drone lands, the support feet first contact the ground. The ground reaction force is transmitted to the moving parts through the sliding rod. After being compressed, the moving parts push the connecting rod to rotate, converting the vertical impact force into horizontal displacement. When the moving parts move horizontally, they compress or stretch the spring, causing the spring to undergo elastic deformation. This converts the impact kinetic energy into elastic potential energy and stores it, thereby mitigating the instantaneous impact when the drone lands, reducing the vibration of the drone and lowering the risk of structural damage. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the agricultural drone spraying device provided by this utility model;

[0020] Figure 2 A schematic diagram of the water injection pipe, sealing cap, liquid outlet pipe, and solenoid valve structure of the agricultural drone spraying device provided by this utility model;

[0021] Figure 3 A partial structural schematic diagram of the spraying mechanism of the agricultural drone spraying device provided by this utility model;

[0022] Figure 4 A partial structural schematic diagram of the buffer component of the agricultural drone spraying device provided by this utility model;

[0023] Figure 5 The agricultural drone spraying equipment provided by this utility model Figure 1 Enlarged view of point A in the middle

[0024] Figure 6 A schematic diagram of the spray pipe, splicing components, and micro motor structure of the agricultural drone aerial spraying equipment provided by this utility model.

[0025] The diagram shows: 1. UAV body; 2. Spraying mechanism; 3. Buffer assembly; 4. Slide rail; 5. Slide bar; 6. Reserved hole; 7. Fixing bolt; 8. Positioning component; 9. Stirring motor; 10. Rotating rod; 11. Blade; 12. Battery; 13. Liquid level sensor; 14. Elastic component; 15. Anti-corrosion coating; 201. Medicine tank; 202. Water injection pipe; 203. Sealing cap; 204. Spray pipe; 205. Assembly component; 206. Micro motor; 207. Drive gear; 208. Driven gear; 209. Connecting pipe; 210. Spray head; 211. Liquid outlet pipe; 212. Solenoid valve; 301. Assembly component; 302. Connecting rod; 303. Moving component; 304. Spring; 305. Slide bar; 306. Support foot. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0027] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0028] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] like Figure 1 As shown, this embodiment proposes an agricultural drone spraying device, including a drone body 1, a spraying mechanism 2 for spraying pesticides at multiple angles at the bottom of the drone body 1, and two sets of buffer components 3 for absorbing impact force at the bottom of the spraying mechanism 2.

[0031] like Figure 3 and Figure 4As shown, the spraying mechanism 2 includes a medicine tank 201 located at the bottom of the UAV body 1. The medicine tank 201 stores the liquid medicine to be sprayed, ensuring a stable supply of liquid medicine. A water injection pipe 202 is connected to the outer wall of the medicine tank 201, through which liquid medicine can be injected into the medicine tank 201. One end of the water injection pipe 202 is threaded with a sealing cap 203, which prevents liquid medicine leakage and the entry of external impurities. A spray pipe 204 is connected to the bottom of the medicine tank 201, through which the liquid medicine flows. A splicing component 205 is fixedly connected to the side wall of the spray pipe 204. A micro motor 206 is bolted to the side wall of the splicing component 205. The splicing component 205 serves as a connecting part between the spray pipe 204 and the micro motor 206, providing fixation and support. The micro motor 206 serves as a drive source, providing power. A drive gear 207 is fixedly connected to the output end of the micro motor 206. A driven gear 208 is provided on one side of the drive gear 207 and meshes with it. Through the drive gear 207 and the driven gear 208... 08 meshes to transmit power, adjusting the speed and direction of the spray head 210. A connecting pipe 209 is fixedly connected to the bottom of the driven gear 208, transmitting rotational power and delivering the liquid medicine. The bottom of the connecting pipe 209 is connected to the spray head 210, which atomizes the liquid medicine and sprays it onto the target area. The bottom of the medicine tank 201 is connected to an outlet pipe 211, which serves as the channel for the liquid medicine to flow out. A solenoid valve 212 is installed outside the outlet pipe 211, controlling the flow of the liquid medicine via an electrical signal. The on / off state of the liquid enables automated control of the spraying system. During use, the liquid is injected into the tank 201 through the water injection pipe 202, and the sealing cap 203 is tightened. Then, the micro motor 206 transmits power to the connecting pipe 209 through the meshing of the drive gear 207 and the driven gear 208, driving the spray head 210 to rotate and swing, achieving multi-angle spraying, avoiding liquid overlap or omission, and improving coverage. The spraying angle can be adjusted according to different crop heights and terrains to enhance the adhesion rate of the liquid on both sides of the crop leaves and improve the control effect.

[0032] like Figure 5As shown, the buffer assembly 3 includes two assemblies 301 fixedly connected to the side wall of the medicine box 201. The assemblies 301 provide a mounting base, serving as support and fixation. Connecting rods 302 are hinged to the bottom of the two assemblies 301. The connecting rods 302 convert vertical impact force into horizontal force, providing force transmission and conversion for the buffering process. Movable parts 303 are hinged to one end of each connecting rod 302. Springs 304 are fixedly connected to the opposite side walls of the two movable parts 303. The movable parts 303 allow the springs 304 to compress and extend within a controllable range, ensuring the stability and effectiveness of the buffering process. A sliding rod 305 is slidably connected inside the springs 304. A damper is installed on the sliding rod 305, which works in conjunction with the springs 304 to achieve a shock absorption effect. The rod 305 serves as a guide and limiter, ensuring that the spring 304 moves in a predetermined direction. Support feet 306 are fixedly connected to both ends of the sliding rod 305. The support feet 306 directly bear the weight of the drone body 1 and the impact force during landing. When the drone body 1 lands, the support feet 306 first contact the ground. The ground reaction force is transmitted to the moving part 303 through the sliding rod 305. After being compressed, the moving part 303 pushes the connecting rod 302 to rotate, converting the vertical impact force into horizontal displacement. When the moving part 303 moves horizontally, it compresses or stretches the spring 304. The spring 304 undergoes elastic deformation, converting the impact kinetic energy into elastic potential energy and storing it, thereby mitigating the instantaneous impact of the drone body 1 during landing, reducing the vibration of the drone body 1, and lowering the risk of structural damage.

[0033] like Figure 1 and Figure 2 As shown, a slide rail 4 is fixedly connected to the bottom of the UAV body 1, and a slide bar 5 is slidably connected to the bottom of the slide rail 4. Pre-drilled holes 6 are provided on the side walls of the slide rail 4 and the slide bar 5. A fixing bolt 7 is threadedly connected to the inner wall of the pre-drilled hole 6. A positioning part 8 is threadedly connected to one end of the fixing bolt 7. The slide rail 4 serves as a sliding guide rail, providing a linear movement path for the slide bar 5. After the slide bar 5 is slid to the designated position, the fixing bolt 7 is screwed into the corresponding pre-drilled hole 6 to initially fix the slide bar 5. The positioning part 8 is then tightened, and the fixing bolt 7 is further tightened by the thread friction to ensure that the slide bar 5 does not shift during operation. The components can be independently installed on the slide bar 5, which facilitates quick disassembly and replacement and improves work efficiency.

[0034] like Figure 1As shown, a stirring motor 9 is bolted to the side wall of the medicine tank 201. A rotating rod 10 is fixedly connected to the output end of the stirring motor 9. Blades 11 are welded to the side wall of the rotating rod 10. A storage battery 12 is installed on the side wall of the medicine tank 201. The stirring motor 9 is electrically connected to the storage battery 12. The stirring motor 9 drives the blades 11 to rotate at high speed through the rotating rod 10, applying shear force to the medicine solution to fully mix different components. This avoids the problems of medicine solution stratification and sedimentation, ensures uniform concentration of medicine solution, and thus improves the prevention and control effect. The storage battery 12 provides a stable power supply to the stirring motor 9 to ensure that the stirring motor 9 can work normally under high-altitude operation.

[0035] like Figure 1 As shown, a liquid level sensor 13 is installed on the inner wall of the medicine tank 201. The liquid level sensor 13 is electrically connected to an external receiving device. The liquid level sensor 13 converts the liquid level into a digital signal, and the receiving device displays the remaining liquid level in real time, so as to avoid insufficient liquid level affecting the operation process.

[0036] like Figure 1 As shown, an elastic element 14 is provided at the bottom of the support foot 306. The elastic element 14 is made of rubber. The rubber elastic element 14 absorbs the kinetic energy of the drone body 1 when it lands through elastic deformation, so as to avoid damage to the fuselage structure caused by rigid collision.

[0037] like Figure 1 As shown, the inner wall of the medicine box 201 is provided with an anti-corrosion coating 15. The anti-corrosion coating 15 is made of epoxy resin. The epoxy resin coating has excellent resistance to chemical media and high tolerance to common corrosive substances in pesticides, thus preventing the inner wall of the medicine box 201 from thinning and perforating due to corrosion or wear.

[0038] Specifically, when using this agricultural drone spraying equipment: first, the pesticide solution is injected into the pesticide tank 201 through the water injection pipe 202, and the sealing cap 203 is tightened. Then, the micro motor 206 transmits power to the connecting pipe 209 through the meshing of the drive gear 207 and the driven gear 208, driving the spray head 210 to rotate and swing, achieving multi-angle spraying, avoiding pesticide overlap or omission, improving coverage, and adjusting the spraying angle according to different crop heights and terrains to enhance the adhesion rate of the pesticide solution on both sides of the crop leaves, thereby improving the control effect (e.g., Figure 3 and Figure 4As shown), when the drone body 1 lands, the support foot 306 first contacts the ground. The ground reaction force is transmitted to the moving part 303 through the slide bar 305. After being compressed, the moving part 303 pushes the connecting rod 302 to rotate, converting the vertical impact force into horizontal displacement. When the moving part 303 moves horizontally, it compresses or stretches the spring 304. The spring 304 undergoes elastic deformation, converting the impact kinetic energy into elastic potential energy and storing it. In conjunction with the damper on the slide bar 305, this reduces the instantaneous impact of the drone body 1 during landing, thereby reducing the vibration of the drone body 1 and lowering the risk of structural damage (e.g., Figure 5 (As shown).

[0039] All technical features in this embodiment can be freely combined according to actual needs.

[0040] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An agricultural drone spraying device, comprising a drone body (1), characterized in that, The bottom of the drone body (1) is provided with a spraying mechanism (2) for spraying pesticides at multiple angles, and the bottom of the spraying mechanism (2) is provided with two sets of buffer components (3) for absorbing impact force. The spraying mechanism (2) includes a medicine tank (201) located at the bottom of the UAV body (1). A water injection pipe (202) is connected to the outer wall of the medicine tank (201). One end of the water injection pipe (202) is threaded with a sealing cap (203). A spraying pipe (204) is connected to the bottom of the medicine tank (201). A splicing component (205) is fixedly connected to the side wall of the spraying pipe (204). A micro motor (206) is bolted to the side wall of the splicing component (205). A drive gear (207) is fixedly connected to the output end of the motor (206). A driven gear (208) is provided on one side of the drive gear (207) and meshes with the drive gear (207). A connecting pipe (209) is fixedly connected to the bottom of the driven gear (208). A spray head (210) is connected to the bottom of the connecting pipe (209). A liquid outlet pipe (211) is connected to the bottom of the medicine tank (201). A solenoid valve (212) is provided outside the liquid outlet pipe (211).

2. The agricultural drone spraying device according to claim 1, characterized in that, The buffer assembly (3) includes two assemblies (301) fixedly connected to the side wall of the medicine box (201). The bottom of the two assemblies (301) is hinged with connecting rods (302). One end of the two connecting rods (302) is hinged with a moving part (303). The opposite side walls of the two moving parts (303) are fixedly connected with springs (304). The inside of the springs (304) is slidably connected with a slide rod (305). The two ends of the slide rod (305) are fixedly connected with support feet (306).

3. The agricultural drone spraying device according to claim 1, characterized in that, The bottom of the UAV body (1) is fixedly connected to a slide rail (4), and a slide bar (5) is slidably connected to the bottom of the slide rail (4). A reserved hole (6) is provided on the side wall of the slide rail (4) and the slide bar (5). A fixing bolt (7) is threadedly connected to the inner wall of the reserved hole (6), and a positioning part (8) is threadedly connected to one end of the fixing bolt (7).

4. The agricultural drone spraying device according to claim 1, characterized in that, A stirring motor (9) is bolted to the side wall of the medicine box (201). A rotating rod (10) is fixedly connected to the output end of the stirring motor (9). A blade (11) is welded to the side wall of the rotating rod (10). A storage battery (12) is installed on the side wall of the medicine box (201). The stirring motor (9) is electrically connected to the storage battery (12).

5. An agricultural drone spraying device according to claim 1, characterized in that, A liquid level sensor (13) is installed on the inner wall of the medicine box (201), and the liquid level sensor (13) is electrically connected to an external receiving device.

6. An agricultural drone spraying device according to claim 2, characterized in that, The bottom of the support foot (306) is provided with an elastic element (14), and the elastic element (14) is made of rubber.

7. An agricultural drone spraying device according to claim 1, characterized in that, The inner wall of the medicine box (201) is provided with an anti-corrosion coating (15), and the anti-corrosion coating (15) is made of epoxy resin.

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