Pressure nozzle for unmanned aerial vehicle

Abstract

The pressure sprayer comprises a liquid inlet pipe, a valve seat, a flow control assembly and an angle control assembly, the liquid inlet pipe is fixedly connected with the valve seat, a plurality of adjusting valves and a plurality of sprayer assemblies are arranged on the valve seat, the adjusting valves are communicated with the sprayer assemblies in a one-to-one correspondence mode, and the sprayer assemblies comprise fixed sprayers and adjustable sprayers. The flow control assembly is connected with the adjusting valves so as to independently control the liquid medicine flow of each adjusting valve, and the angle control assembly is connected with the adjustable nozzles so as to independently control the spraying angle of each adjustable nozzle. A plurality of adjustable spray heads and a plurality of adjusting valves are integrated on one pressure spray head, and the spraying angle and the spraying flow of each adjustable spray head can be independently controlled, so that the spraying angle or the spraying flow of one or more spray heads can be flexibly adjusted; therefore, the adaptive capacity of the pressure nozzle to a complex working environment is greatly improved, the working efficiency can be improved, and the working quality can also be improved.

Description

Technical Field

[0001] This invention relates to the field of agricultural drone technology, and more specifically to a pressure nozzle for drones. Background Technology

[0002] In recent years, with the continuous improvement of the scale and modernization of agricultural production, agricultural drones have been widely used in the field of agricultural and forestry plant protection due to their advantages such as low operating costs, ease of operation, and strong adaptability. The pressure nozzles used in the spraying system of agricultural drones mainly rely on the internal pressure of the pesticide liquid for spraying, and have the characteristics of strong pesticide penetration, less droplet drift, simple structure, and low cost.

[0003] In actual operations, due to the diversity and complexity of crop types, planting structures, and application environments, it is often necessary to adjust spraying parameters, such as pesticide flow rate and atomization range, in real time for different work areas. However, current pressure nozzles are only suitable for fixed spraying modes. When spraying parameters need to be adjusted, the entire pressure nozzle often needs to be disassembled and replaced, resulting in poor flexibility and significantly impacting operational efficiency.

[0004] Therefore, how to enable pressure nozzles to adapt to complex working environments, flexibly adjust their spraying parameters, and improve work efficiency and quality has become an urgent technical problem to be solved. Summary of the Invention

[0005] Based on the above situation, the main objective of this invention is to provide a pressure nozzle for drones, so that the pressure nozzle can adapt to complex operating environments, flexibly adjust its spraying parameters, and improve operating efficiency and quality.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, the present invention provides a pressure nozzle for a drone, the pressure nozzle being fixedly mounted on the drone, specifically comprising: an inlet pipe, a valve seat, a flow control assembly, and an angle control assembly, wherein: The inlet pipe is fixedly connected to the valve seat, and the valve seat is provided with a receiving cavity. The outlet end of the inlet pipe is inserted into the receiving cavity inside the valve seat and contacts the bottom of the receiving cavity to achieve fluid communication between the two. The valve seat is provided with multiple regulating valves, and all of the multiple regulating valves are connected to the liquid inlet pipe. The valve seat is also provided with multiple nozzle assemblies. The regulating valves are connected to the nozzle assemblies one by one. The nozzle assembly includes a fixed nozzle and an adjustable nozzle. The flow control component is fixedly mounted on the valve seat, and the flow control component is connected to multiple regulating valves to independently control the flow rate of the medicine in each regulating valve; The angle control component is fixedly mounted on the valve seat, and the angle control component is connected to the adjustable nozzle to independently control the spray angle of each adjustable nozzle.

[0007] Specifically, the fixed nozzle is located at the bottom center of the valve seat, and multiple adjustable nozzles are evenly distributed around the sides of the valve seat.

[0008] Specifically, the regulating valve includes multiple central regulating valves and peripheral regulating valves; the central regulating valve is located at the center of the valve seat, and the multiple peripheral regulating valves are evenly arranged around the central regulating valve in the circumferential direction. The central regulating valve is connected to the fixed nozzle, and the lateral regulating valve is connected to the adjustable nozzle in a corresponding manner.

[0009] Specifically, the regulating valve is provided with a valve core, and the flow control assembly includes a driving element and a transmission mechanism, wherein: The driving component is connected to the transmission mechanism, and the transmission mechanism is connected to the valve core. Under the drive of the driving component, the transmission mechanism drives the valve core to move, so as to adjust the liquid flow rate of the regulating valve.

[0010] Specifically, the angle control assembly includes a servo motor, a servo stick, an adapter stick, and a connecting stick, wherein: The servo motor, servo motor stick, adapter rod, and connecting rod form a planar linkage structure. The servo motor stick is connected to the output end of the servo motor. The adapter rod is connected to both the servo motor stick and the connecting rod. The connecting rod is connected to the adjustable nozzle. When the servo motor is activated, the servo motor drives the servo motor stick connected to its output end to swing around the output end of the servo motor, and the adapter rod and connecting rod swing accordingly, thereby causing the adjustable nozzle to swing and thus adjusting the spraying direction of the adjustable nozzle.

[0011] Furthermore, it also includes: A sealing gasket is provided with a flow hole, the position of which corresponds to the position of the regulating valve, and the diameter of the sealing gasket is the same as the inner diameter of the receiving cavity; and the sealing gasket is made of a flexible material.

[0012] Specifically, the inlet pipe has multiple outlets, and the positions of the multiple outlets correspond to the positions of the regulating valve.

[0013] Furthermore, it also includes a fixing component. A first connecting platform is provided on the outside of the liquid inlet pipe, and a second connecting platform is provided on the outside of the valve seat. Both the first connecting platform and the second connecting platform are provided with corresponding connecting holes. The fixing component passes through the connecting holes on the first connecting platform and the second connecting platform and is fixed to fix the liquid inlet pipe to the valve seat.

[0014] Furthermore, it also includes: setting a support column between the first connecting platform and the second connecting platform to ensure that the first connecting platform and the second connecting platform do not deform when the inlet pipe is fixedly connected to the valve seat, so as to ensure a stable connection between the inlet pipe and the valve seat.

[0015] Furthermore, it also includes a protective cover, which covers the outside of the flow control assembly and is fixedly installed on the valve seat.

[0016] The beneficial effects of this invention are as follows: A pressure nozzle for unmanned aerial vehicles (UAVs) disclosed in an embodiment of the present invention includes an inlet pipe, a valve seat, a flow control component, and an angle control component. The inlet pipe is fixedly connected to the valve seat, with at least a portion of the inlet pipe inserted into the valve seat. Multiple regulating valves are disposed within the valve seat, each communicating with the inlet pipe. Multiple nozzle assemblies are also disposed on the valve seat, with each regulating valve corresponding to a nozzle assembly. Each nozzle assembly includes a fixed nozzle and an adjustable nozzle. The flow control component is connected to the regulating valves to independently control the flow rate of the liquid at each regulating valve. The angle control component is connected to the adjustable nozzles to independently control the spray angle of each adjustable nozzle. Multiple adjustable nozzles and multiple regulating valves are integrated into a single pressure nozzle, and the spray angle and flow rate of each adjustable nozzle can be independently controlled. This allows for flexible adjustment of the spray angle or flow rate of one or more nozzles according to the current working environment, greatly improving the pressure nozzle's adaptability to complex working environments and enhancing its flexibility. This not only improves operational efficiency but also enhances operational quality.

[0017] Other beneficial effects of the present invention will be explained in detail through the introduction of specific technical features and technical solutions in specific embodiments. Those skilled in the art should be able to understand the beneficial technical effects brought about by these technical features and technical solutions through the introduction of these technical features and technical solutions. Attached Figure Description

[0018] A preferred embodiment of a pressure nozzle for a drone according to the present invention will now be described with reference to the accompanying drawings. In the drawings: Figure 1 This is a schematic diagram of the exploded structure of a pressure nozzle for a drone disclosed in this embodiment; Figure 2This is a cross-sectional structural diagram of a pressure nozzle for a drone disclosed in this embodiment; Figure 3 This is a schematic diagram of the valve seat in a pressure nozzle for a drone disclosed in this embodiment; Figure 4 This is a schematic diagram of the structure of the bottom surface of the valve seat in a pressure nozzle for a drone disclosed in this embodiment; Figure 5 This is a schematic diagram of the liquid inlet pipe in a pressure nozzle for an unmanned aerial vehicle (UAV) disclosed in this embodiment. Figure 6 This is a schematic diagram of the flow control component in a pressure nozzle for an unmanned aerial vehicle (UAV) disclosed in this embodiment. Figure 7 This is a schematic diagram of the angle control component in a pressure nozzle for a drone disclosed in this embodiment.

[0019] Reference numerals: 100-Pressure nozzle for UAV, 1-Inlet pipe, 11-Fixed position, 12-First connecting platform, 13-Inlet, 14-Outlet, 2-Valve seat, 21-Regulating valve, 211-Central regulating valve, 212-Side regulating valve, 213-Valve stem, 214-Valve core, 22-Nozzle assembly, 221-Fixed nozzle, 222-Adjustable nozzle, 23-Second connecting platform, 24-Receiving cavity, 3-Flow control assembly, 31-Driver, 32-Transmission mechanism, 321-First gear, 322-Second gear, 4-Angle control assembly, 41-Servo motor, 42-Servo motor rod, 43-Adapter rod, 44-Connecting rod, 5-Sealing gasket, 51-Flow hole, 6-Fixed component, 61-Support column. Detailed Implementation

[0020] The present invention is described below based on embodiments, but the present invention is not limited to these embodiments. In the following detailed description of the present invention, some specific details are described in detail, but well-known methods, processes, procedures, and elements are not described in detail in order to avoid obscuring the essence of the present invention.

[0021] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0022] Unless the context explicitly requires it, the words "comprising," "including," and similar terms throughout the specification and claims should be interpreted as encompassing rather than being exclusive or exhaustive; that is, meaning "including but not limited to."

[0023] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0024] During agricultural drone spraying operations, there are completely different spraying requirements for short-stalked crops and tall-canopied crops: short-stalked crops require a wider spray width to improve spraying efficiency, while tall-stalked crops require a relatively narrow and concentrated spray beam to ensure the penetration of the pesticide and increase the coverage area. In addition to the different spray width requirements, the amount of pesticide used per unit area for tall-stalked crops usually needs to be increased compared to short-stalked crops to ensure sufficient pesticide reaches and covers the lower and middle parts of the crop. This necessitates adjustments to the pesticide flow rate of the nozzles.

[0025] In current technologies, the flow rate and spray width of pressure nozzles for drones are relatively fixed. Adjustments require stopping the drone and disassembling and replacing the entire nozzle, significantly reducing operational efficiency. Therefore, this application provides a pressure nozzle for drones that allows for flexible adjustment of spray parameters such as spray width and flow rate, enabling it to adapt to complex operating environments and improve operational efficiency.

[0026] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the exploded structure of the pressure nozzle disclosed in this embodiment. Figure 2 This is a cross-sectional structural diagram of the pressure nozzle disclosed in this embodiment.

[0027] like Figure 1 As shown, the drone pressure nozzle 100 includes an inlet pipe 1, a valve seat 2, a flow control component 3, and an angle control component 4. The inlet pipe 1 and valve seat 2 are fixedly connected, and both the flow control component 3 and the angle control component 4 are fixedly mounted on the valve seat 2. In this embodiment, a fixing position 11 is provided on the inlet pipe 1 to fix the drone pressure nozzle 100 onto the drone, for example, by using screws to pass through the fixing position 11 to fix the drone pressure nozzle 100 onto the drone. A medicine tank is also mounted below the drone. The outlet of the medicine tank is connected to the inlet of the inlet pipe 1 of the drone pressure nozzle 100 through a deformable connecting pipe (such as a PU hose) to adapt to the relative displacement and vibration caused by the wind field during drone operation, ultimately pumping the medicine in the medicine tank into the drone pressure nozzle 100 for spraying.

[0028] like Figure 2As shown, a first connecting platform 12 is provided on the outside of the inlet pipe 1, and a second connecting platform 23 is provided on the outside of the valve seat 2. Both the first connecting platform 12 and the second connecting platform 23 are provided with connecting holes, and the positions of the connecting holes are corresponding. The inlet pipe 1 and the valve seat 2 are fixed by passing through the connecting holes on the two connecting platforms (the fixed connection method includes, but is not limited to, pin connection, quick release pin connection or elastic plunger and other fixed connection methods). Figure 2 Taking the pin connection as an example, when the inlet pipe 1 and the valve seat 2 are fixedly connected, the pin is passed through the first connecting platform 12 and the second connecting platform 23 for fixation, thereby achieving a fixed connection between the inlet pipe 1 and the valve seat 2. In this embodiment, when the inlet pipe 1 and the valve seat 2 are fixedly connected, the lower part of the inlet pipe 1 is inserted into the interior of the valve seat 2, and the valve seat 2 covers the end face of the inlet pipe 1 to prevent leakage of the medicine.

[0029] In the specific implementation process, since there may be a certain gap in the longitudinal direction between the first connecting platform 12 and the second connecting platform 23 (i.e. not completely tightly fitted), a support column 61 can also be set between the first connecting platform 12 and the second connecting platform 23 to ensure that the first connecting platform 12 and the second connecting platform 23 do not deform when the liquid inlet pipe 1 is fixedly connected to the valve seat 2, thereby ensuring the connection stability between the liquid inlet pipe 1 and the valve seat 2.

[0030] like Figure 1 and Figure 2 As shown, the valve seat 2 has a receiving cavity 24. Specifically, when the inlet pipe 1 is fixedly connected to the valve seat 2, the lower part of the inlet pipe 1 is inserted into the interior of the valve seat 2 and abuts against the bottom of the receiving cavity 24. The outer wall of the end of the inlet pipe (1) is provided with a first sealing cone surface, and the inner wall of the valve seat (2) is provided with a matching second sealing cone surface. When the inlet pipe (1) is inserted into place, the first sealing cone surface and the second sealing cone surface fit tightly together to form a radial seal, thereby preventing the liquid from leaking from the joint.

[0031] like Figure 1 As shown, a regulating valve 21 is provided inside the valve seat 2. The regulating valve 21 is located at the bottom of the receiving cavity 24. There are multiple regulating valves 21, preferably, the multiple regulating valves 21 are evenly distributed at the bottom of the receiving cavity 24. Figure 3 As shown, the flow control component 3 is fixedly installed on the outside of the valve seat 2. The flow control component 3 is connected to the regulating valve 21 and is used to control the flow rate of the medicine liquid through the regulating valve 21. When there are multiple regulating valves 21, there are also multiple flow control components 3, and each flow control component 3 corresponds to a regulating valve 21 to individually control the flow rate of the medicine liquid in each regulating valve 21.

[0032] In optional embodiments, such as Figure 2As shown, the pressure nozzle 100 also includes a protective cover 7, which covers the outside of the flow control assembly 3 and is fixedly mounted on the valve seat 2 to protect the structure of the flow control assembly 3.

[0033] Please see Figure 3 and Figure 4 , Figure 3 This is a schematic diagram of the valve seat structure in the pressure nozzle disclosed in this embodiment. Figure 4 This is a schematic diagram of the structure of the bottom surface of the valve seat in the pressure nozzle disclosed in this embodiment.

[0034] like Figure 4 As shown, the valve seat 2 is also equipped with a nozzle assembly 22 and an angle control assembly 4. The nozzle assembly 22 includes a fixed nozzle 221 and an adjustable nozzle 222. The angle control assembly 4 is connected to the adjustable nozzle 222 to independently control the spray angle of each adjustable nozzle 222. The fixed nozzle 221 is a nozzle assembly fixed to the valve seat 2 whose spray angle is not adjustable; the adjustable nozzle 222 is a nozzle assembly fixed to the valve seat 2 and whose adjustable angle can be controlled at 90°. Furthermore, the regulating valve 21 is connected to each nozzle assembly 22 in a one-to-one correspondence. That is, each regulating valve 21 is connected to one nozzle in the nozzle assembly 22. After the liquid medicine flows into the regulating valve 21, the flow rate of the liquid medicine is adjusted by the regulating valve 21 and then sprayed out from the nozzle assembly 22.

[0035] In the specific implementation process, the fixed nozzle 221 is set at the bottom center of the valve seat 2, and the adjustable nozzle 222 is set on the side periphery of the valve seat 2. When there are multiple adjustable nozzles 222, they are evenly distributed on the side periphery of the valve seat 2. The fixed nozzle 221 sprays the liquid outward at a fixed angle from the center position, while the adjustable nozzles 222 spray the liquid outward from the side. The fixed nozzle 221 can make up for the spray gaps inside the adjustable nozzles 222 when they spray outward, thereby improving the coverage of the spray.

[0036] In the specific implementation process, such as Figure 3 As shown, the regulating valve 21 includes a central regulating valve 211 and peripheral regulating valves 212. The central regulating valve 211 is located at the center of the valve seat 2 and is connected to the fixed nozzle 211. The peripheral regulating valves 212 are evenly distributed around the central regulating valve 211 and are connected to the adjustable nozzles 222 one by one. This structure of direct connection makes the flow channel of the liquid medicine in the valve seat 2 relatively direct and simple.

[0037] Please refer to Figure 5 , Figure 5 This is a schematic diagram of the liquid inlet pipe in the pressure nozzle disclosed in this embodiment. Figure 5As shown, the inlet pipe 1 includes an inlet 13 and an outlet 14. The inlet 13 is connected to a medicine tank mounted on the drone to receive the medicine pumped in by the medicine tank. In this embodiment, there can be multiple outlets 14, and the position of each outlet 14 corresponds to the position of the regulating valve 21 provided in the valve seat 2. That is to say, after the liquid in the inlet pipe 1 flows out through the outlet 14, it flows directly into the regulating valve 21.

[0038] In practical implementation, the inlet 13 can be located on the side of the inlet pipe 1 or on its end face; no limitation is made here. It is understood that when the inlet 13 is located on the end face of the inlet pipe 1, sufficient space needs to be reserved for installing a flexible hose when the inlet pipe 1 is fixed to the drone, so that the inlet 13 can communicate with the medicine tank. Preferably, the inlet 13 is located on the side of the inlet pipe 1, which ensures a stable connection between the inlet pipe 1 and the drone without affecting the flow of the medicine.

[0039] In an optional embodiment, a sealing gasket 5 is further provided at the bottom of the receiving cavity 24. The sealing gasket 5 has a flow hole 51, the position of which is the same as that of the regulating valve 21. The diameter of the sealing gasket 5 is approximately equal to the inner diameter of the receiving cavity 24. In this embodiment, the sealing gasket 5 is provided at the bottom of the receiving cavity 24 so that when the inlet pipe 1 and the valve seat 2 are tightly connected, the sealing gasket 5 can seal the connection 1 between the inlet pipe 1 and the valve seat 2, thereby preventing leakage of the medicine. Preferably, the sealing gasket 5 can be made of a flexible material, such as rubber, silicone, or elastic plastic.

[0040] like Figure 3 and Figure 4 As shown, the flow control component 3 is fixedly mounted on the outside of the valve seat 2. The flow control component 3 is connected to the regulating valve 21 and is used to control the flow rate of the medicine liquid through the regulating valve 21. Each regulating valve 21 is provided with a valve stem 213 and a valve core 214. The flow control component 3 regulates the flow rate of the medicine liquid through the regulating valve 21 by controlling the opening degree of the valve core 214 in the regulating valve 21.

[0041] For specific implementation details, please refer to [link / reference]. Figure 6 , Figure 6This is a schematic diagram of the flow control component in a pressure nozzle for a drone disclosed in this embodiment. The flow control component 3 includes a drive element 31 and a transmission mechanism 32. The drive element 31 drives the regulating valve 21 to rotate via the transmission mechanism 32, thereby controlling the flow rate of the liquid medicine passing through the regulating valve 21. In specific implementations, the drive element 31 is a motor or other drive device, and the transmission mechanism 32 is a gear transmission mechanism. The regulating valve 21 is provided with a valve stem 213, which is connected to the transmission mechanism 32. When the drive element 31 drives the transmission mechanism 32, the transmission mechanism 32 drives the valve stem 213 to rotate, thereby adjusting the opening degree of the valve core 214 within the regulating valve 21, and thus adjusting the flow rate of the liquid medicine passing through the regulating valve 21.

[0042] Specifically, the transmission mechanism 32 includes a first gear 321 and a second gear 322. When the driving member 31 is started, the driving member 31 drives the first gear 321 connected to it to rotate. The first gear 321 then drives the second gear 322 meshing with it to rotate. The second gear 322 then drives the valve stem 213 meshing with it to rotate, thereby adjusting the opening of the valve core 214 in the regulating valve 21, and thus adjusting the flow rate of the medicine liquid passing through the regulating valve 21.

[0043] like Figure 3 and Figure 4 As shown, the valve seat 2 has multiple flow channels inside, and each regulating valve 21 is connected to the nozzle assembly 22 through one of the flow channels. In specific implementation, an adapter can be connected to the outlet of the flow channel, that is, at the connection with the nozzle assembly 22, to adjust the flow direction of the liquid medicine so that the liquid medicine can flow into the nozzle assembly 22.

[0044] Please see Figure 7 , Figure 7 This is a schematic diagram of the angle control component in a pressure nozzle for a drone disclosed in this embodiment. Figure 7 As shown, the angle control component 4 is fixedly connected to the adjustable nozzle 222. The angle control component 4 includes a servo motor 41, a servo motor rod 42, an adapter rod 43, and a connecting rod 44. The servo motor 41, the servo motor rod 42, the adapter rod 43, and the connecting rod 44 form a planar linkage structure. The servo motor rod 42 is connected to the output end of the servo motor 41. The adapter rod 43 is connected to the servo motor rod 42 and the connecting rod 44 respectively. The connecting rod 44 is connected to the adjustable nozzle 222.

[0045] When the servo motor 41 is activated, the servo motor 41 drives the servo motor stick 42 connected to its output end to swing around the output end of the servo motor 41. During this process, the adapter rod 43 and the connecting rod 44 swing accordingly, thereby driving the adjustable nozzle 222 to swing, so as to adjust the spraying direction of the adjustable nozzle 222.

[0046] In an optional embodiment, the outer side of the valve seat 2 is provided with a recessed mounting position for mounting the angle control component 4. Since the angle control component 4 needs to adjust the spray angle of the adjustable nozzle 222, the angle control component 4 is mounted in the recessed mounting position on the outer side of the valve seat 2. The structure of the valve seat 2 itself provides a certain degree of protection for the structure of the angle control component 4, without the need to add a protective shell to the angle control component 4. This reduces the complexity of the structure and avoids affecting the angle adjustment of the adjustable nozzle 222.

[0047] In actual use, the plant protection drone takes off and enters the orchard operation area according to the preset route. When the drone flies to the larger fruit trees, the servo motor 41 starts to work. The servo motor 41 drives the servo motor rod 42 and the connecting rod 44 to make the angle of the adjustable nozzle 222 deviate from the vertical direction. According to the spraying amount per acre requirement, the control drive component 31 is started. The drive component 31 drives the transmission mechanism 32 and the valve rod 213 to rotate, so as to change the opening degree of the valve core 214, so that the current liquid discharge rate meets the requirements. The liquid flows from the liquid inlet pipe 1 into the valve seat 2 and then sprays out from the fixed nozzle 221 and the adjustable nozzle 222, thereby covering a large area of ​​fruit trees.

[0048] When a severe pest or disease outbreak occurs in a certain area and concentrated spraying is required, the servo motor 41 drives the servo motor rod 42 and the connecting rod 44 to tilt the adjustable nozzle 222 towards the vertical direction, making the spray droplets more concentrated. At this time, it is necessary to increase the amount of pesticide. The drive component 31 starts and drives the transmission mechanism 32 and the valve rod 213 to rotate, thereby increasing the opening degree of the valve core 214 and making the liquid output rate greater. The liquid flows from the inlet pipe 1 into the valve seat 3 and then sprays out from the fixed nozzle 221 and the adjustable nozzle 222, thus realizing the concentrated spraying of fruit tree pests and diseases.

[0049] It should be noted that during the above operation, the flow rate of the pesticide solution in both the fixed nozzle 221 and the adjustable nozzle 222 can be controlled independently. That is, the fixed nozzle 221 can be controlled to have a larger flow rate, while the adjustable nozzle 222 can have a smaller flow rate, and different adjustable nozzles 222 can also have different flow rates. Furthermore, the spraying angle of each adjustable nozzle 222 can also be adjusted and controlled via the angle control component 4 to achieve pesticide spraying for different work areas.

[0050] A pressure nozzle for unmanned aerial vehicles (UAVs) disclosed in an embodiment of the present invention includes an inlet pipe, a valve seat, a flow control component, and an angle control component. The inlet pipe is fixedly connected to the valve seat, with at least a portion of the inlet pipe inserted into the valve seat. Multiple regulating valves are disposed within the valve seat, each communicating with the inlet pipe. Multiple nozzle assemblies are also disposed on the valve seat, with each regulating valve corresponding to a nozzle assembly. Each nozzle assembly includes a fixed nozzle and an adjustable nozzle. The flow control component is connected to the regulating valves to independently control the flow rate of the liquid at each regulating valve. The angle control component is connected to the adjustable nozzles to independently control the spray angle of each adjustable nozzle. Multiple adjustable nozzles and multiple regulating valves are integrated into a single pressure nozzle, and the spray angle and flow rate of each adjustable nozzle can be independently controlled. This allows for flexible adjustment of the spray angle or flow rate of one or more nozzles according to the current working environment, greatly improving the pressure nozzle's adaptability to complex working environments and enhancing its flexibility. This not only improves operational efficiency but also enhances operational quality.

[0051] It will be understood by those skilled in the art that the above-described preferred solutions can be freely combined and superimposed without conflict. The flowcharts and block diagrams in the accompanying drawings illustrate the architecture, functionality, and operation of possible implementations of systems, methods, and computer program products according to various embodiments of this disclosure. In this regard, each block in a flowchart or block diagram may represent a module, segment, or portion of code containing one or more executable instructions for implementing a specified logical function. It should also be noted that in some alternative implementations, the functions indicated in the blocks may occur in a different order than those indicated in the drawings; for example, two consecutively indicated blocks may actually be executed substantially in parallel, or sometimes in reverse order, depending on the functions involved. It should also be noted that each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts, can be implemented using a dedicated hardware-based system that performs the specified function or operation, or using a combination of dedicated hardware and computer instructions. The numbering of each step in this document is for ease of explanation and reference only and is not intended to limit the order of execution. The specific execution order is determined by the technology itself, and those skilled in the art can determine various permissible and reasonable orders based on the technology itself.

[0052] Those skilled in the art will understand that, without conflict, the above-mentioned preferred solutions can be freely combined and superimposed.

[0053] It should be understood that the above embodiments are merely exemplary and not restrictive. Various obvious or equivalent modifications or substitutions that can be made by those skilled in the art regarding the above details without departing from the basic principles of the present invention will be included within the scope of the claims of the present invention.

Claims

1. A pressure nozzle for a drone, the pressure nozzle being fixedly mounted on the drone, characterized in that, Specifically, it includes: The inlet pipe (1), valve seat (2), flow control assembly (3), and angle control assembly (4) are provided, wherein: the inlet pipe (1) is fixedly connected to the valve seat (2), the valve seat (2) is provided with a receiving cavity (24), and the outlet end of the inlet pipe (1) is inserted into the receiving cavity (24) inside the valve seat (2) and contacts the bottom of the receiving cavity (24) to realize fluid communication between the two; the valve seat (2) is provided with multiple regulating valves (21), and the multiple regulating valves (21) are all connected to the inlet pipe (1), and the valve seat (2) is also provided with multiple nozzle assemblies (22), the regulating valves (21) and the nozzle assemblies (22) are connected one-to-one, and the nozzle assembly (22) includes a fixed nozzle (221) and an adjustable nozzle (222). The flow control component (3) is fixedly mounted on the valve seat (2). The flow control component (3) is connected to multiple regulating valves (21) to independently control the flow rate of the liquid medicine in each regulating valve (21). The angle control component (4) is fixedly mounted on the valve seat (2). The angle control component (4) is connected to the adjustable nozzle (222) to independently control the spray angle of each adjustable nozzle (222).

2. The pressure nozzle according to claim 1, characterized in that, The fixed nozzle (221) is located at the bottom center of the valve seat (2), and a plurality of adjustable nozzles (222) are evenly distributed around the side of the valve seat (2).

3. The pressure nozzle according to claim 2, characterized in that, The regulating valve (21) includes multiple central regulating valves (211) and peripheral regulating valves (212); the central regulating valve (211) is located at the center of the valve seat (2), and the multiple peripheral regulating valves (212) are evenly arranged around the central regulating valve (211); wherein, the central regulating valve (211) is connected to the fixed nozzle (221), and the peripheral regulating valves (212) are connected to the adjustable nozzles (222) in a one-to-one correspondence.

4. The pressure nozzle according to claim 1, characterized in that, The regulating valve (21) is provided with a valve stem (213) and a valve core (214). The flow control assembly (3) includes a drive member (31) and a transmission mechanism (32), wherein: the drive member (31) is connected to the transmission mechanism (32), the transmission mechanism (32) is connected to the valve stem (213), and the transmission mechanism (32) drives the valve stem (213) to rotate under the drive of the drive member (31) to control the rotation of the valve core (214) to adjust the liquid flow of the regulating valve (21).

5. The pressure nozzle according to claim 1, characterized in that, The angle control component (4) includes a servo motor (41), a servo stick (42), an adapter rod (43), and a connecting rod (44), wherein: the servo motor (41), the servo stick (42), the adapter rod (43), and the connecting rod (44) form a planar linkage structure. The servo stick (42) is connected to the output end of the servo motor (41). The adapter rod (43) is connected to the servo stick (42) and the connecting rod (44) respectively. The connecting rod (44) is connected to the adjustable nozzle (222). When the servo motor (41) is started, the servo motor (41) drives the servo stick (42) connected to its output end to swing around the output end of the servo motor (41). The adapter rod (43) and the connecting rod (44) also swing accordingly, thereby causing the adjustable nozzle (222) to swing, thereby adjusting the spraying direction of the adjustable nozzle (222).

6. The pressure nozzle according to claim 1, characterized in that, Also includes: A sealing gasket (5) is provided with a flow hole (51), the position of the flow hole (51) corresponds to the position of the regulating valve (21), and the diameter of the sealing gasket (5) is the same as the inner diameter of the receiving cavity (24); and the material of the sealing gasket (5) is a flexible material.

7. The pressure nozzle according to claim 1, characterized in that, The inlet pipe (1) has multiple outlets (14), and the positions of the multiple outlets (14) correspond to the positions of the regulating valve (21).

8. The pressure nozzle according to claim 1, characterized in that, It also includes a fixing component (6), a first connecting platform (12) is provided on the outside of the liquid inlet pipe (1), and a second connecting platform (23) is provided on the outside of the valve seat (2). The first connecting platform (12) and the second connecting platform (23) are provided with corresponding connecting holes. The fixing component (6) passes through the connecting holes on the first connecting platform (12) and the second connecting platform (23) and is fixed to fix the liquid inlet pipe (1) and the valve seat (2).

9. The pressure nozzle according to claim 1, characterized in that, Also includes: A support column (61) is set between the first connecting platform (12) and the second connecting platform (23) to ensure that the first connecting platform (12) and the second connecting platform (23) do not deform when the inlet pipe (1) is fixedly connected to the valve seat (2), so as to ensure a stable connection between the inlet pipe (1) and the valve seat (2).

10. The pressure nozzle according to claim 1, characterized in that, Also includes: A protective cover (7) is fitted over the outside of the flow control assembly (3) and fixedly installed on the valve seat (2).

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