Unmanned aerial vehicle and hydraulic spray head suitable for spraying cumquat tree crowns

Abstract

The utility model discloses an unmanned aerial vehicle and a hydraulic spray head suitable for spraying cumquat tree crowns, and relates to the technical field of agricultural equipment. The hydraulic spray head comprises an unmanned master control cabin, a folding rotor wing piece and a hydraulic liquid outlet piece. The hydraulic liquid outlet piece comprises a material storage box, a main control pump body, a material conveying pipeline, a treatment tank, a filtering tank, a liquid outlet spray head and a turbulent flow valve element, and materials in the material storage box are conveyed to the liquid outlet spray head after being subjected to pressure stabilization of the treatment tank and filtering of the filtering tank in sequence through the material conveying pipeline. The turbulent flow valve element is in threaded connection with the interior of the liquid outlet spray head, and the turbulent flow valve element and the liquid outlet spray head are detachably installed so that disassembly, cleaning and replacement can be facilitated. Supporting legs, a monitoring camera assembly and a radar are arranged at the bottom of the unmanned master control cabin, stable rising and landing of equipment are guaranteed, and automatic cruise, precise spraying and obstacle avoidance are achieved. The kumquat crown spraying device effectively solves the problems that materials sprayed by existing equipment are prone to floating and blocking, and flexibility is insufficient, efficiency and quality of kumquat crown spraying are improved, and maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of agricultural equipment, and in particular to a drone and hydraulic nozzle suitable for spraying the canopy of kumquat trees. Background Technology

[0002] In the process of kumquat cultivation, pest and disease control, fertilization, and other aspects all require spraying materials onto the tree canopy. Traditional spraying methods mainly rely on manual operation, with operators carrying sprayers and walking through the field. This method has many drawbacks: firstly, manual spraying is labor-intensive and inefficient, especially in large-scale kumquat orchards, making it difficult to meet the demand for timely spraying; secondly, manual spraying is greatly affected by the operator's experience and physical strength, making it difficult to ensure even spraying, easily resulting in some areas being over-sprayed while others are under-sprayed, thus affecting the growth and yield of the kumquats.

[0003] Therefore, with the development of drone technology, drones have been widely used in the field of agricultural plant protection.

[0004] Chinese Patent CN209650547U discloses a drone spraying device for plant protection that provides even spraying. Addressing the problem of inconvenient cleaning of existing spray tanks, the following solution is proposed: It includes a connecting plate with a mounting frame welded to its bottom. A water tank is installed inside the mounting frame, and a motor is located on top of the water tank. The water tank contains a rotating shaft, stirring blades, a crossbar, a brush, and a pump. A first connecting pipe is connected to the bottom of the mounting frame, and a first nozzle is connected to the bottom of the first connecting pipe. Fixed columns are welded to both sides of the mounting frame. The bottom of each fixed column has a groove and a first connecting rod. A threaded rod and a moving block are located within the groove. A second connecting rod is hinged to the bottom of the moving block. A second connecting pipe is welded to the bottom of the first connecting rod, and a second nozzle is connected to the bottom of the second connecting pipe. This invention facilitates water tank cleaning, ensures even mixing of the pesticide solution, facilitates adjustment of the spraying range, and provides uniform spraying, effectively improving work efficiency.

[0005] However, the above-mentioned device still has some shortcomings in actual use:

[0006] 1. Firstly, existing spraying devices can adjust the spraying range to ensure uniform spraying of the pesticide, but their spraying effect is not good. When the nozzle sprays the pesticide, the turbulence effect cannot be controlled, resulting in excessive turbulence, excessive pressure loss, or excessively fine droplets. As a result, the pesticide droplets sprayed from the nozzle drift away directly during their fall in the air and fail to land on the vegetation that needs to be sprayed, thus affecting the targeted spraying effect on the vegetation. Furthermore, after the equipment has been working for a long time, it is very easy to affect the service life of the nozzle.

[0007] 2. Secondly, the existing equipment cannot guarantee the cleanliness of the pesticide solution when spraying, which inevitably leads to foreign objects entering the tank. When it needs to spray the pesticide solution, the impurities in the solution will clog the nozzles, affecting the continuity of the spraying operation. At the same time, the impurities may also damage the kumquat trees.

[0008] Therefore, based on the above-stated viewpoints, there is still room for improvement in existing devices. Utility Model Content

[0009] To address the aforementioned problems, this invention provides a drone and a hydraulic nozzle suitable for spraying the canopy of kumquat trees, employing the following technical solution:

[0010] In one aspect, this application provides a drone suitable for spraying the canopy of kumquat trees, including a stationary unmanned main control cabin.

[0011] The folding rotor is controlled by the unmanned main control cabin to rotate, which drives the unmanned main control cabin to take off. Several folding rotors are arranged at equal intervals on the side wall of the unmanned main control cabin along its circumferential direction. The folding rotors include the drone rotor that controls the drone's take-off and the circular shell that controls the rotation of the drone rotor.

[0012] The drone rotor is mounted on a circular shell via bearings.

[0013] The hydraulic dispensing device, controlled by an unmanned main control cabin, sprays material from top to bottom onto the canopy of kumquat trees. The hydraulic dispensing device includes a treatment tank installed at the bottom of a circular shell with foldable rotor components. A filter tank is integrally installed at the bottom of the treatment tank. The end of the filter tank away from the treatment tank is connected by a screw to a removable and detachable dispensing nozzle. The material passes through the treatment tank and the filter tank in sequence and is then sprayed out from the nozzle on the dispensing nozzle and sprinkled onto the kumquat trees.

[0014] The processing tank, the filter tank, and the liquid outlet nozzle are all provided with a conveying hole, and the liquid outlet nozzle is also provided with a nozzle that extends outward and connects to the conveying hole.

[0015] Furthermore, the hydraulic discharge device also includes a storage tank installed at the bottom of the unmanned main control cabin, and a main control pump body is installed inside the storage tank from the inside out. Several conveying pipes extend outward from the bottom of the main control pump body. The material in the storage tank is pumped to the conveying pipes through the main control pump body, and then transported to the processing tank through the conveying pipes and sprayed out from the discharge nozzle. The end of the conveying pipe away from the main control pump body is located on the processing tank.

[0016] Furthermore, the inner side of the liquid outlet nozzle is provided with an internal thread structure, and a turbulence valve core is screwed onto the internal thread structure of the liquid outlet nozzle. The side of the turbulence valve core near the liquid outlet nozzle is provided with a connecting thread that cooperates with the liquid outlet nozzle.

[0017] Furthermore, the turbulence valve core is provided with guide grooves at equal intervals along the circumferential direction of its height to gently turbulent the flow and buffer the material. The turbulence valve core is provided with an integrated positioning block and a guide block on both sides along the height direction. The guide block is provided with a liquid outlet groove at equal intervals on the side near the liquid outlet nozzle, which corresponds to the guide groove. The positioning block is located at the top of the turbulence valve core, and the guide block is located at the bottom of the turbulence valve core.

[0018] Furthermore, two sets of symmetrically distributed outriggers are installed at the bottom of the unmanned main control cabin to provide support for the cabin.

[0019] Furthermore, the folding rotor also includes a passive connecting arm that is installed at equal intervals with the side wall of the unmanned main control cabin. An active connecting arm is installed on the passive connecting arm via a folding component, and the end of the active connecting arm away from the passive connecting arm is connected to the circular shell.

[0020] Furthermore, a control motor is installed inside the circular shell. One side of the control motor is connected to the unmanned main control cabin via a wire, and the output axis of the control motor is connected upward to the drone rotor. The drone rotor is driven to rotate and stop by starting and stopping the control motor.

[0021] Furthermore, a monitoring camera module is installed at the bottom of the unmanned main control cabin, which enables the drone to automatically cruise and spray materials.

[0022] Furthermore, the bottom of the drone's main control cabin is also equipped with radar for receiving and transmitting signals.

[0023] Secondly, this application provides a hydraulic spray head suitable for spraying the canopy of kumquat trees, including the aforementioned drone suitable for spraying the canopy of kumquat trees.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] I. This utility model incorporates a flow-turbulence valve core screwed into the liquid outlet nozzle. The flow-turbulence valve core, with its circumferentially spaced guide grooves, effectively turbulent and buffer the material, stabilizing its flow rate and pressure during transport and reducing the adverse effects of turbulence. This avoids the problem of airborne loss caused by excessively fine droplets, significantly improving the adhesion rate of the liquid to the kumquat tree canopy and the effectiveness of targeted spraying. Simultaneously, the stable flow rate and pressure reduce impact wear on the nozzle's inner wall. Combined with the detachable screw-connection design between the liquid outlet nozzle and the filter tank, this facilitates regular maintenance and cleaning, effectively extending the nozzle's service life.

[0026] Second, the disassembly and reassembly design of the liquid outlet nozzle of this utility model can effectively improve the convenience of replacing and maintaining the turbulence valve core, and can flexibly replace turbulence valve cores of different specifications, thereby reducing the maintenance cost of the equipment and the economic investment in component replacement.

[0027] Third, this utility model integrates functions such as material storage, conveying, processing, spraying, and flight control, realizing integrated operation of kumquat canopy spraying. The large-capacity design of the storage tank reduces the number of feeding operations, the adjustable speed function of the main control pump adapts to different material requirements, and the stable flight of the multi-rotor ensures coverage of the operating range. Compared with traditional drones, it is significantly more efficient and greatly reduces the labor and time costs of kumquat cultivation.

[0028] IV. This utility model's hydraulic dispensing unit realizes an integrated conveying process from material storage to spraying. It reduces material loss and waste during transport, improving material utilization. Simultaneously, the hydraulic dispensing units are evenly spaced along the circumference of the unmanned main control cabin, improving spray uniformity and overall enhancing the efficiency of kumquat canopy spraying. Attached Figure Description

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0030] Figure 1 This is a schematic diagram of the structure of the drone and hydraulic nozzle for spraying the canopy of kumquat trees, which is applicable to this utility model.

[0031] Figure 2 This is a structural diagram of the folding rotor component and the unmanned main control cabin of this utility model.

[0032] Figure 3 This is a schematic diagram of the structure between the folding rotor and the hydraulic liquid outlet of this utility model.

[0033] Figure 4 This is a utility model Figure 3 Enlarged view of the local structure at point A in the image.

[0034] Figure 5 This is an exploded view of the structure of the treatment tank, filter tank, liquid outlet nozzle, nozzle, and turbulence valve core of this utility model.

[0035] Figure 6 This is a schematic diagram of the structure of the turbulence valve core of this utility model.

[0036] Explanation of reference numerals in the attached drawings: 1. Unmanned main control cabin; 2. Folding rotor; 20. UAV rotor; 21. Circular shell; 3. Hydraulic liquid outlet; 30. Processing tank; 31. Filter tank; 32. Liquid outlet nozzle; 33. Nozzle; 34. Storage tank; 35. Main control pump body; 36. Material conveying pipeline; 37. Turbulence valve core; 370. Flow guide channel; 371. Positioning block; 372. Flow guide block; 373. Liquid outlet channel; 4. Support leg; 5. Passive connecting arm; 6. Active connecting arm; 7. Monitoring camera assembly; 8. Radar. Detailed Implementation

[0037] The following combination Figures 1-6 This application will be described in further detail.

[0038] Example 1:

[0039] Reference Figure 1 As shown, this utility model first provides a drone suitable for spraying the canopy of kumquat trees, and the drone is equipped with a hydraulic nozzle. This utility model is mainly composed of three parts: the unmanned main control cabin 1, the folding rotor 2, and the hydraulic liquid outlet 3.

[0040] The unmanned main control cabin 1, serving as the control core of the entire device, adopts a static structure design and integrates a central processing unit, a power management module, a wireless communication module, and a flight control module. The central processing unit is responsible for receiving and processing various sensor signals and coordinating the collaborative operation of various components; the power management module provides a stable power output to all electrical components of the device; the wireless communication module enables two-way data transmission with the ground control terminal, supporting remote control and data feedback; and the flight control module precisely controls the UAV's flight attitude, altitude, and path according to preset programs or real-time commands.

[0041] Reference Figure 2 As shown, specifically, the folding rotor 2 is controlled by the unmanned main control cabin 1 to rotate, thereby driving the unmanned main control cabin 1 to take off. Several folding rotors 2 are arranged at equal intervals along the circumferential direction of the unmanned main control cabin 1 on its side wall. The folding rotor 2 includes a drone rotor 20 for controlling the drone to take off and a circular shell 21 for controlling the rotation of the drone rotor 20. The drone rotor 20 is rotatably mounted on the circular shell 21 through bearings.

[0042] The folding rotor 2 also includes a passive connecting arm 5 installed at equal intervals with the side wall of the unmanned main control cabin 1. An active connecting arm 6 is installed on the passive connecting arm 5 via a folding component. The end of the active connecting arm 6 away from the passive connecting arm 5 is connected to the circular shell 21.

[0043] The folding rotor assembly 2 is the flight propulsion component of the UAV. Its number is determined by the size and payload requirements of the UAV main control cabin 1, typically six, and they are evenly spaced along the circumference of the UAV main control cabin 1 on its side walls to ensure balanced force distribution during flight. Each folding rotor assembly 2 includes a passive connecting arm 5, a folding component, an active connecting arm 6, a circular housing 21, a control motor, and a UAV rotor 20. One end of the passive connecting arm 5 is fixedly connected to the side wall of the UAV main control cabin 1, and the other end is connected to the active connecting arm 6 via the folding component. The folding component uses a high-strength hinge structure with reliable locking and folding functions, allowing the active connecting arm 6 to rotate and fold relative to the passive connecting arm 5 from zero to 180 degrees. It folds during transport and storage to reduce space occupation and unfolds during operation to ensure flight stability.

[0044] The end of the active connecting arm 6 furthest from the passive connecting arm 5 is fixedly connected to the circular housing 21. The circular housing 21 is a hollow cylindrical structure made of lightweight, high-strength alloy material, and houses a control motor. The control motor is connected to the power management module and flight control module inside the unmanned main control cabin 1 via wires. Its output axis extends upward and is connected to the UAV rotor 20. By adjusting the speed of the control motor, the rotational speed of the UAV rotor 20 is controlled, thereby adjusting the flight state of the UAV. The control motor is a known existing structure.

[0045] The drone rotor 20 is mounted on the top of the circular housing 21 via a high-precision bearing. The bearing adopts a sealed design, which has good dustproof and waterproof performance, ensuring the stable operation of the drone rotor 20 in humid environments.

[0046] Reference Figure 3 As shown, the hydraulic liquid outlet 3 is the core component for realizing the material spraying function. It is responsible for completing the entire process of material storage, transportation, filtration, treatment and precise spraying. Its structural design fully considers the spraying needs of the kumquat canopy.

[0047] The hydraulic discharge unit 3 also includes a storage tank 34 installed at the bottom of the unmanned main control cabin 1, and a main control pump body 35 is installed inside the storage tank 34 from the inside out. Several conveying pipes 36 extend outward from the bottom of the main control pump body. The material in the storage tank 34 is pumped to the conveying pipes 36 by the main control pump body 35, and then transported to the processing tank 30 through the conveying pipes 36, and sprayed out from the discharge nozzle 32. The end of the conveying pipe 36 away from the main control pump body is located on the processing tank 30.

[0048] The hydraulic liquid dispensing unit 3 mainly includes a storage tank 34, a main control pump body 35, a conveying pipeline 36, a processing tank 30, a filter tank 31, a liquid dispensing nozzle 32, and a turbulence valve core 37. The storage tank 34 is installed at the bottom of the unmanned main control cabin 1 and is made of food-grade corrosion-resistant plastic material, which has good sealing performance. Its volume is designed according to the payload capacity of the UAV and can meet the material storage needs of a single operation. The storage tank 34 is equipped with a feeding port, which is equipped with a spiral sealing cap to prevent leakage during material transportation. A liquid level sensor is installed on the inner wall of the storage tank 34 to monitor the remaining material in real time and transmit the data to the unmanned main control cabin 1. When the material is insufficient, an early warning signal is automatically issued.

[0049] The main control pump body 35 is installed inside the storage tank 34 and adopts a micro diaphragm pump structure, featuring stable flow and adjustable pressure. Its operating parameters can be remotely adjusted via the unmanned main control cabin 1 to adapt to the conveying needs of different materials. Several conveying pipes 36 extend outward from the bottom of the main control pump body 35. The number of conveying pipes 36 matches the number of folding rotor components 2. They are made of high-pressure resistant and corrosion-resistant polytetrafluoroethylene (PTFE), possessing good flexibility and anti-aging properties. The end of the conveying pipe 36 furthest from the main control pump body 35 is connected to the processing tank 30 via a quick connector, realizing the conveying of materials from the storage tank 34 to the spraying terminal.

[0050] Let's look again. Figure 3 and Figure 4 As shown, the hydraulic liquid dispensing device 3 is controlled by a drone to spray material from top to bottom onto the canopy of the kumquat tree. The hydraulic liquid dispensing device 3 includes a treatment tank 30 installed at the bottom of the circular shell 21 of the foldable rotor 2. A filter tank 31 is integrally installed at the bottom of the treatment tank 30. The end of the filter tank 31 away from the treatment tank 30 is connected to a removable liquid dispensing nozzle 32 by screwing. The material passes through the treatment tank 30 and the filter tank 31 in sequence and is then sprayed out from the nozzle 33 at the bottom of the liquid dispensing nozzle 32 and sprinkled onto the kumquat tree.

[0051] The processing tank 30, the filter tank 31 and the liquid outlet nozzle 32 are all provided with a conveying hole, and the liquid outlet nozzle 32 is also provided with a nozzle 33 that extends outward and communicates with the conveying hole.

[0052] The treatment tank 30 is installed at the bottom of the circular shell 21 of the folding rotor 2 and is connected to the circular shell 21 by welding or bolting to ensure a firm connection. After the material enters the treatment tank 30, it first undergoes pressure stabilization treatment in the conveying port of the treatment tank 30 to avoid pressure fluctuations in the material conveying caused by pump pulses and to ensure the uniformity of subsequent spraying.

[0053] The bottom of the treatment tank 30 is integrated with the filter tank 31, and the treatment tank 30 has a multi-layer filtration structure, typically including two stages of filtration: a coarse filter and a fine filter. The coarse filter filters large particles and impurities from the material; the fine filter further filters fine particles and suspended solids, effectively preventing impurities from entering the liquid outlet nozzle 32 and causing blockage. The filter screen of the filter tank 31 is detachable and secured by a slot, facilitating periodic removal for cleaning or replacement. Note that it is not shown in the figure.

[0054] The end of the filter tank 31 furthest from the treatment tank 30 is fitted with a liquid outlet nozzle 32 via a screw connection. A rubber sealing gasket is provided at the connection between the liquid outlet nozzle 32 and the filter tank 31 to ensure a tight seal and prevent material leakage. The liquid outlet nozzle 32 has a conical shape with an internal thread for installing a flow-damping valve core 37 on its inner side; the outer side has anti-slip grooves for easy tightening or loosening between it and the filter tank 31. Several outwardly extending nozzles 33 are located at the bottom of the liquid outlet nozzle 32, evenly distributed around its circumference. The number, diameter, and angle of the nozzles 33 can be designed according to spraying requirements to ensure that the sprayed material forms a ring-shaped coverage area, adapting to the shape and characteristics of the kumquat tree canopy.

[0055] The processing tank 30, the filter tank 31, and the liquid outlet nozzle 32 share a common conveying hole, forming the main channel for material conveying. The nozzle 33 on the liquid outlet nozzle 32 is connected to the conveying hole. After processing and filtration, the material enters the nozzle 33 through the conveying hole and is finally sprayed out. A turbulence valve core 37 is screwed onto the internal thread structure of the liquid outlet nozzle 32. The side of the turbulence valve core 37 near the liquid outlet nozzle 32 has a connecting thread that mates with the internal thread of the liquid outlet nozzle 32. The position adjustment and fixation of the turbulence valve core 37 within the liquid outlet nozzle 32 are achieved through the threaded connection.

[0056] Reference Figure 5 and Figure 6 As shown, the turbulence valve core 37 is a key component for achieving uniform material spraying. The turbulence valve core 37 has guide grooves 370 that gently turbulent the flow and buffer the material at equal intervals along the circumferential direction of its height. The turbulence valve core 37 also has an integrated positioning block 371 and a guide block 372 on both sides along the height direction. The guide block 372 has a liquid outlet groove 373 at equal intervals on the side near the liquid outlet nozzle 32 that corresponds one-to-one with the guide grooves 370. The positioning block 371 is located at the top of the turbulence valve core 37, and the guide block 372 is located at the bottom of the turbulence valve core 37.

[0057] The cross-sectional shape of the guide channel 370 can be semi-circular, rectangular, or trapezoidal, and its dimensions are designed according to the material characteristics. It generates a turbulence effect by changing the material flow path, while also buffering the material and further stabilizing the material flow rate and pressure. The turbulence valve core 37 has an integrated positioning block 371 and a guide block 372 on both sides along the height direction: the positioning block 371 is located on the top of the turbulence valve core 37 and has a circular boss structure, which is used to limit the axial movement of the turbulence valve core 37 within the liquid outlet nozzle 32, ensuring the stability of the working position of the turbulence valve core 37.

[0058] The guide block 372 is located at the bottom of the turbulence valve core 37, near the nozzle 33 of the liquid outlet nozzle 32. The guide block 372 has liquid outlet grooves 373 that correspond one-to-one with the guide groove 370. The shape and size of the liquid outlet grooves 373 are optimized so that the material can be evenly distributed to each nozzle 33 after being turbulent by the guide groove 370, and finally achieve uniform spraying.

[0059] Furthermore, the design of the turbulence valve core 37 can effectively control the turbulence effect, prevent the droplets from being too fine, and prevent the liquid droplets sprayed from the nozzle from drifting away directly in the air, so that the size of the droplets is within a reasonable range, ensuring that the droplets can perfectly cover the canopy of the kumquat tree.

[0060] Looking back Figure 1 As shown, in addition, two sets of symmetrically distributed support legs 4 are installed at the bottom of the unmanned main control cabin 1. The support legs 4 are made of high-strength aluminum alloy material, which provides stable support for the equipment when the drone takes off and lands, and avoids damage caused by direct contact between the bottom parts and the ground. The bottom of the support legs 4 is equipped with rubber buffer pads, which have a certain shock absorption effect and reduce the impact load when the drone lands.

[0061] Continue to refer to Figure 1As shown, to achieve intelligent operation, a monitoring camera assembly 7 and a radar 8 are also installed at the bottom of the unmanned main control cabin 1. The monitoring camera assembly 7 uses a high-definition industrial camera equipped with infrared night vision, which can capture images of the kumquat canopy in real time under different lighting conditions, and collect data on canopy height, density, and fruit distribution. The camera is connected to the image recognition module inside the unmanned main control cabin 1, which analyzes parameters such as the canopy outline, size, and density through image algorithms, providing data support for the drone's automatic navigation and precise spraying. The radar 8 has distance detection and obstacle recognition functions, which can detect the distance between the drone and the kumquat tree, the ground, and other obstacles in real time. When the distance is detected to be too close, the unmanned main control cabin 1 immediately issues control commands to adjust the flight attitude to avoid collision accidents. At the same time, the radar 8 is also used to receive signals from the ground control terminal and send drone operation status data to achieve remote positioning and control. It can also monitor the ambient wind speed in real time, dynamically adjust the nozzle angle (increase the downward angle when facing headwind) and flight speed, and automatically switch to fine nozzle spraying mode and shorten the single spraying time to prevent excessive dilution of the pesticide.

[0062] Example 2:

[0063] This application also provides a hydraulic spray head suitable for spraying the canopy of kumquat trees, including the aforementioned drone for spraying the canopy of kumquat trees. Further details will not be repeated here.

[0064] During operation: First step: unfold the active connecting arm 6 of the folding rotor 2 and check whether the drone rotor 20 rotates flexibly; add material to the storage tank 34, screw the turbulence valve core 37 to the liquid outlet nozzle 32 and install it into the filter tank 31, and ensure that the material conveying pipe 36 is firmly connected; install the battery pack and turn on the power, connect the drone through the ground terminal, and set parameters such as flight altitude, speed, and spray flow rate.

[0065] Step 2: Send the takeoff command, the drone rotor 20 rotates and takes off, and cruises along the preset path; after arriving at the work area, the main control pump 35 starts, the material is sent to the processing tank 30 through the conveying pipe 36, and after being filtered by the filter tank 31, it enters the liquid outlet nozzle 32, and after being buffered by the flow guide groove 370 of the turbulence valve core 37, it is sprayed from the nozzle 33 onto the canopy of the kumquat tree; the monitoring camera component 7 and radar 8 avoid obstacles in real time and adjust the path.

[0066] Step 3: After completing the operation, the drone stops spraying and returns to land; turn off the power, disassemble the battery pack for charging, and fold the rotor; disassemble the liquid nozzle 32 and the turbulence valve core 37 for cleaning, check the condition of the filter screen, pipes and other components, and clean the residual material in the storage tank 34.

[0067] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A drone suitable for spraying of golden orange tree crown, characterized in that: Including a static unmanned host cabin (1), The folding rotor (2) is controlled by the unmanned host cabin (1) to rotate the folding rotor (2) to drive the unmanned host cabin (1) to take off, a plurality of folding rotors (2) are arranged on the side wall of the unmanned host cabin (1) along the circumferential direction of the unmanned host cabin (1) at equal intervals, the folding rotor (2) includes an unmanned aerial vehicle rotor (20) for controlling the take-off of the unmanned aerial vehicle and a circular shell (21) for controlling the rotation of the unmanned aerial vehicle rotor (20); The unmanned aerial vehicle rotor (20) is rotatably mounted on the circular shell (21) through a bearing; The liquid force type liquid outlet (3) is controlled by the unmanned host cabin (1) to spray the material from top to bottom to the crown of the golden orange tree, the liquid force type liquid outlet (3) includes a treatment tank (30) mounted at the bottom of the circular shell (21) of the folding rotor (2), a filter tank (31) is integrally installed at the bottom of the treatment tank (30), and an active detachable liquid outlet spray head (32) is installed at one end of the filter tank (31) away from the treatment tank (30) by screwing, the material is sprayed from the nozzle (33) on the liquid outlet spray head (32) after passing through the treatment tank (30) and the filter tank (31) in sequence, and is sprayed to the golden orange tree; The treatment tank (30), the filter tank (31) and the liquid outlet spray head (32) are provided with a conveying hole, and the liquid outlet spray head (32) is also provided with a nozzle (33) extending outward and communicating with the conveying hole.

2. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: The liquid force type liquid outlet (3) further includes a storage tank (34) mounted at the bottom of the unmanned host cabin (1), and a main control pump body (35) is mounted in the storage tank (34) from inside to outside, a plurality of material conveying pipes (36) extend outward from the bottom of the main control pump body (35), the material in the storage tank (34) is pumped to the material conveying pipes (36) by the main control pump body (35), the material is conveyed to the treatment tank (30) through the material conveying pipes (36), and is sprayed from the liquid outlet spray head (32), and one end of the material conveying pipe (36) away from the main control pump body is provided on the treatment tank (30).

3. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: The inner side of the liquid outlet spray head (32) is provided with an internal thread structure, and the internal thread structure of the liquid outlet spray head (32) is screwed with a flow valve core (37), one side of the flow valve core (37) close to the liquid outlet spray head (32) is provided with a connecting thread matched with the liquid outlet spray head (32).

4. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 3, characterized in that: The flow valve core (37) is provided with a plurality of flow guide grooves (370) for disturbing flow and buffering material at equal intervals along the circumferential direction of the height, and the flow valve core (37) is provided with an integrated positioning block (371) and a flow guide block (372) on both sides along the height direction, the flow guide block (372) is provided with a liquid outlet groove (373) corresponding to the flow guide groove (370) at equal intervals on the side close to the liquid outlet spray head (32), the positioning block (371) is located at the top of the flow valve core (37), and the flow guide block (372) is located at the bottom of the flow valve core (37).

5. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: The bottom of the unmanned host cabin (1) is also provided with two groups of symmetrically distributed supporting legs (4), which provide support for the unmanned host cabin (1).

6. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: The folding rotor piece (2) further comprises a passive connecting arm (5) installed at equal intervals with the side wall of the unmanned main control cabin (1), and a driving connecting arm (6) is installed on the passive connecting arm (5) through a folding piece, and the end of the driving connecting arm (6) away from the passive connecting arm (5) is connected with the circular shell (21).

7. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: A control motor is arranged in the circular shell (21), one side of the control motor is connected with the unmanned main control cabin (1) through a wire, and the output shaft of the control motor is connected with the unmanned aerial vehicle rotor (20) upward, and the unmanned aerial vehicle rotor (20) is driven to rotate and stop through starting and stopping of the control motor.

8. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: The bottom of the unmanned main control cabin (1) is further provided with a monitoring camera assembly (7), and the automatic cruising and automatic spraying of the unmanned aerial vehicle are realized through the monitoring camera assembly (7).

9. The unmanned aerial vehicle for spraying of golden orange tree crown according to claim 1, characterized in that: The bottom of the unmanned main control cabin is further provided with a radar (8) for receiving signals and sending signals.

10. A hydraulic spray head suitable for spraying of a tree crown of a kumquat tree, characterized in that: The unmanned aerial vehicle is suitable for spraying of gold orange tree crowns.

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