Pesticide spraying type unmanned aerial vehicle
By combining a hinged spray bar and a telescopic hose with a pressure pump, the problem of fixed nozzle angle in traditional drones has been solved, achieving spray uniformity and expanded coverage, thus improving the operational efficiency and safety of drones.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-17
AI Technical Summary
Traditional pesticide spraying drones have fixed nozzle angles, resulting in poor performance, uneven spraying, and increased drone load.
The design incorporates an articulated spray boom and telescopic hose, combined with a pressure pump, to achieve flexible adjustment of the spray boom and stable delivery of the pesticide solution, ensuring uniform spraying and wide coverage.
It improves the efficiency and versatility of drones, reduces the space occupied for transportation and storage, reduces the risk of liquid leakage, and enhances operational safety.
Smart Images

Figure CN224131298U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically a pesticide spraying UAV. Background Technology
[0002] In the wave of modern agriculture's transformation towards intelligence and efficiency, pesticide spraying drones have become an indispensable core piece of equipment. Traditional manual or mechanical plant protection methods have long been plagued by problems such as low operational efficiency, high labor costs, and serious pesticide waste, making it difficult to meet the needs of large-scale agricultural production, while also posing potential risks to the health of operators and the ecological environment. The introduction of drone technology has brought a revolutionary breakthrough to the field of agricultural plant protection.
[0003] The patent publication number "CN216468471U" discloses a "portable pesticide spraying drone", which includes a main unit. A wing assembly is fixedly connected to the outer wall of the main unit. A storage box is fixedly connected to the outer wall of the main unit. A vibration damping assembly is movably connected to the inner wall of the storage box. The vibration damping assembly includes a rotating shaft disposed on the inner wall of the storage box. An inner plate is movably connected to the outer wall of the rotating shaft. An outer plate is movably connected to the inner wall of the inner plate. A second spring is fixedly connected to the inner wall of the outer plate, with one end of the second spring fixedly connected to the outer wall of the inner plate. A rubber pad is fixedly connected to the outer wall of the outer plate. A sliding assembly is movably connected to the inner wall of the storage box. A telescopic assembly is fixedly connected to the inner wall of the storage box.
[0004] In the aforementioned patent, the sliding component, in conjunction with other components, makes the device easy and effortless to handle and carry, providing convenience for users while reducing the likelihood of damage. However, the nozzle angle is fixed, which can lead to poor performance in different usage scenarios. Furthermore, the spraying assembly uses four water pumps and nozzles symmetrically arranged, which, while providing wide coverage, can result in inconsistent water pressure due to the independent pumps, affecting spray uniformity and increasing the drone's load.
[0005] Therefore, this utility model provides a pesticide spraying drone to solve the above problems. Utility Model Content
[0006] To address the shortcomings of existing technologies, this utility model provides a pesticide spraying drone, which solves the aforementioned problems.
[0007] To achieve the above objectives, this utility model is implemented through the following technical solution: a pesticide spraying drone, comprising a drone body, a spraying assembly disposed below the drone body, the spraying assembly including a pesticide storage tank, connecting plates fixedly connected to both sides of the pesticide storage tank, a spraying rod front end hinged to the outer side of the connecting plates, a telescopic hose end fixedly passing through both sides of the pesticide storage tank, the other end of the telescopic hose fixedly passing through the inner surface of the spraying rod, and the upper surface of the pesticide storage tank fixedly connected to the lower surface of the drone body.
[0008] Furthermore, baffles are fixedly connected to both sides of the medicine storage box, and square frames are formed on the side surfaces of the baffles.
[0009] By adopting the above technical solution, the use of an articulated spraying boom and a telescopic hose allows the spraying boom to be flexibly folded and stored, effectively reducing the space occupied by the drone during transportation and storage. At the same time, the telescopic hose can maintain the airtightness of the liquid transmission during the unfolding / folding of the spraying boom, avoiding liquid leakage. The spraying boom can be adjusted to spray direction and angle according to different working environments, achieving the beneficial effects of improving the working efficiency and versatility of the device.
[0010] Furthermore, a limiting plate is slidably connected to the inner wall of the square frame, and the limiting plate is movably connected to the outer surface of the rear end of the spraying rod.
[0011] The above technical solution allows the movable connection of the limiting plate to facilitate quick folding and storage of the spraying rod, balancing operational stability and portability requirements.
[0012] Furthermore, a nozzle is fixedly inserted through the outer surface of the spray rod.
[0013] Using the above technical solution, the nozzles fixed through the outer surface of the spraying rod can directly atomize and spray the liquid pesticide in the storage tank onto the surface of crops. Compared with a single central nozzle layout, the multi-nozzle distributed design significantly expands the coverage area of a single spray, reduces the repeated flight paths of drones, and improves operational efficiency.
[0014] Furthermore, a mounting plate is fixedly connected to the rear surface of the medicine storage box, a pressure pump is fixedly connected to the upper surface of the mounting plate, one end of a connecting bend is fixedly connected to the output end of the pressure pump, and the other end of the connecting bend is fixedly inserted inside the medicine storage box.
[0015] By adopting the above technical solution, a pressure pump installed on the rear of the pesticide storage tank is connected to the inside of the tank via a connecting bend. This allows pressure to be applied to the pesticide solution inside the tank, enabling the solution to be delivered to the nozzle at a stable flow rate. This results in more uniform spraying, reduces the overall weight of the device, avoids problems with pesticide delivery caused by changes in drone flight altitude or hose bends, and achieves control over different atomization effects and spraying distances, thus meeting the diverse needs of plant protection operations.
[0016] Furthermore, a medicine adding port is provided on the front surface of the medicine storage box.
[0017] By adopting the above technical solution, the location of the dosing port is convenient for operators to safely add chemicals on the ground, reducing the risk of working at heights and improving safety.
[0018] Beneficial effects
[0019] This invention provides a pesticide spraying drone. Compared with the prior art, it has the following advantages:
[0020] 1. This pesticide spraying drone, by adopting an articulated spraying boom and telescopic hose, allows the spraying boom to be flexibly folded and stored, effectively reducing the space occupied during the transportation and storage of the drone; at the same time, the telescopic hose can maintain the sealing of the pesticide transmission during the unfolding / folding of the spraying boom, avoiding pesticide leakage; the spraying boom can be adjusted to the spraying direction and angle according to different working environments, achieving the beneficial effects of improving the working efficiency and versatility of the device.
[0021] 2. This pesticide spraying drone uses a pressure pump installed at the rear of the pesticide storage tank, which is connected to the inside of the tank via a connecting bend. This pump applies pressure to the pesticide solution inside the tank, allowing the solution to be delivered to the nozzle at a stable flow rate. This results in more even spraying, reduces the overall weight of the device, and avoids problems with pesticide delivery caused by changes in drone flight altitude or hose bends. It also enables control over different atomization effects and spraying distances, thus meeting the diverse needs of plant protection operations. Attached Figure Description
[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0023] Figure 1 This is a perspective view of the external structure of this utility model;
[0024] Figure 2 This is a structural front view of the present invention;
[0025] Figure 3 This is a side view of the structure of this utility model;
[0026] Figure 4 This is a top view of the structure of this utility model.
[0027] In the diagram: 1. UAV body; 2. Spraying assembly; 201. Drug storage tank; 202. Mounting plate; 203. Pressure pump; 204. Connecting bend; 205. Baffle; 206. Square frame; 207. Limiting plate; 208. Connecting plate; 209. Telescopic hose; 210. Spraying rod; 211. Nozzle; 212. Drug filling port. Detailed Implementation
[0028] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0029] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.
[0030] Reference Figures 1 to 4 This application provides a pesticide spraying drone, including a drone body 1, a spraying assembly 2 disposed below the drone body 1, the spraying assembly 2 including a pesticide storage tank 201, connecting plates 208 fixedly connected to both sides of the pesticide storage tank 201, the front end of a spraying rod 210 hinged to the outer side of the connecting plates 208, one end of a telescopic hose 209 fixedly passing through both sides of the pesticide storage tank 201, the other end of the telescopic hose 209 fixedly passing through the inner surface of the spraying rod 210, and the upper surface of the pesticide storage tank 201 fixedly connected to the lower surface of the drone body 1. Baffles 205 are fixedly connected to both sides of the pesticide storage tank 201, and square frames 206 are formed on the side surfaces of the baffles 205.
[0031] In this embodiment, when operation is required, the limiting plate 207 is first slid outward, and then the spraying rod 210 hinged to the connecting plate 208 can be unfolded around the hinge point. At this time, the telescopic hose 209 stretches synchronously with the movement of the spraying rod 210. With its telescopic characteristics, the liquid delivery channel between the medicine tank 201 and the spraying rod 210 is kept unobstructed, avoiding pipeline breakage or leakage due to mechanical movement. After the operation is completed, the spraying rod 210 is folded inward along the hinge point to reduce the overall size of the drone, making it easier to store and transport.
[0032] Reference Figures 1 to 4 In one aspect of this embodiment, a limiting plate 207 is slidably connected to the inner wall of the square frame 206, and the limiting plate 207 is movably connected to the outer surface of the rear end of the spray rod 210.
[0033] In this embodiment, when the spraying rod 210 needs to be folded, the reverse sliding limiting plate 207 covers the outside of the spraying rod 210 to avoid folding, that is, to limit and constrain the spraying rod 210, so as to realize the flexible folding of the spraying rod 210.
[0034] Reference Figures 1 to 4 In one aspect of this embodiment, a nozzle 211 is fixedly penetrated through the outer surface of the spray rod 210.
[0035] In this embodiment, the pressurizing pump 203 pressurizes and delivers the liquid medicine in the medicine storage tank 201 to the telescopic hose 209 through the connecting bend pipe 204. The liquid medicine flows into the internal pipeline of the spray bar 210 through the hose and is finally sprayed out at high speed and atomized from the nozzle 211.
[0036] Reference Figures 1 to 4 In one aspect of this embodiment, a mounting plate 202 is fixedly connected to the rear surface of the medicine storage box 201, a pressure pump 203 is fixedly connected to the upper surface of the mounting plate 202, one end of a connecting bend 204 is fixedly connected to the output end of the pressure pump 203, and the other end of the connecting bend 204 is fixedly inserted inside the medicine storage box 201.
[0037] In this embodiment, after the pressure pump 203 is started, it applies pressure to the liquid medicine in the medicine storage tank 201 to overcome the resistance when the liquid medicine flows in the hose, spray bar 210 and nozzle 211, and ensures that the liquid medicine is delivered to the nozzle 211 at a stable flow rate and pressure. By adjusting the power or speed of the pressure pump 203, the output pressure of the liquid medicine can be controlled, thereby adjusting the atomization effect and spraying distance of the nozzle 211.
[0038] Reference Figures 1 to 4 In one aspect of this embodiment, a medicine filling port 212 is provided on the front surface of the medicine storage box 201.
[0039] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0040] Working principle: Before operation, the operator can conveniently replenish the liquid medicine through the filling port 212 on the front side of the medicine storage tank 201 and seal it to prevent leakage. Then, the operator will first slide the limiting plate 207 outward and unfold the spraying boom 210 before taking off. Then, the pressurization pump 203 on the mounting plate 202 will be started, pressurizing the liquid medicine in the medicine storage tank 201 through the connecting bend pipe 204 and delivering it to the spraying boom 210 through the telescopic hose 209. Finally, it will be atomized and sprayed out by the nozzle 211 on the outside of the spraying boom 210 to achieve uniform spraying over a large area. After the operation is completed, the spraying boom 210 will be folded and retracted to reduce the space occupied by the drone and facilitate transportation and storage.
[0041] 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.
[0042] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A pesticide spraying unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), characterized in that: A spraying assembly (2) is provided below the drone body (1). The spraying assembly (2) includes a medicine storage tank (201). A connecting plate (208) is fixedly connected to both sides of the medicine storage tank (201). The front end of a spraying rod (210) is hinged to the outside of the connecting plate (208). One end of a telescopic hose (209) is fixedly connected to both sides of the medicine storage tank (201). The other end of the telescopic hose (209) is fixedly connected to the inner surface of the spraying rod (210). The upper surface of the medicine storage tank (201) is fixedly connected to the lower surface of the drone body (1).
2. The pesticide spraying unmanned aerial vehicle according to claim 1, characterized in that: Both sides of the medicine storage box (201) are fixedly connected with baffles (205), and square frames (206) are opened on the side surfaces of the baffles (205). 3.The pesticide spraying unmanned aerial vehicle of claim 2, wherein: The inner wall of the square frame (206) is slidably connected to a limiting plate (207), and the limiting plate (207) is movably connected to the outer surface of the rear end of the spraying rod (210).
4. The pesticide spraying unmanned plane according to claim 1, characterized in that: The spray bar (210) has a nozzle (211) fixedly inserted through its outer surface.
5. The pesticide spraying unmanned plane according to claim 1, characterized in that: The medicine storage box (201) is fixedly connected to the rear surface of the mounting plate (202), and the mounting plate (202) is fixedly connected to the upper surface of the mounting plate (202). The output end of the pressure pump (203) is fixedly connected to one end of the connecting bend (204), and the other end of the connecting bend (204) is fixedly connected to the inside of the medicine storage box (201).
6. The pesticide spraying unmanned plane according to claim 1, characterized in that: The medicine storage box (201) has a medicine adding port (212) on its front surface.
Citation Information
Patent Citations
Portable pesticide spraying unmanned aerial vehicle
CN216468471U