Agricultural plant protection robot capable of controlling spraying range
By introducing electric actuators and gear meshing systems into agricultural plant protection robots, and combining them with control valves to regulate liquid flow, the problem of spray pipes being unable to be adjusted at multiple angles and oscillate has been solved, achieving flexible control of the spray range and enhanced adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JIAN COLLEGE
- Filing Date
- 2026-04-13
- Publication Date
- 2026-05-12
AI Technical Summary
Existing agricultural plant protection robot spray pipes cannot achieve multi-angle adjustment and swing spraying, resulting in inflexible control of the spray range and difficulty in adapting to the needs of diverse crops.
An agricultural plant protection robot with controllable spray range was designed. The support frame is moved by an electric actuator, and the horizontal rotation and swing spraying of the spray pipe are realized by the gear meshing motion. The liquid flow rate is adjusted by the control valve to achieve flexible control of the spray volume and angle.
It achieves multi-angle and height adjustment of the spray pipe, which can adapt to complex terrain and diverse crops, with a wider spraying range and more flexible use, meeting different spraying requirements.
Smart Images

Figure CN122004188A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of agricultural machinery technology, and in particular to an agricultural plant protection robot with controllable spray range. Background Technology
[0002] Agricultural plant protection robots are automated devices specifically designed for plant protection tasks in agricultural environments. These robots can perform functions such as spraying pesticides and applying fertilizers, aiming to improve agricultural production efficiency, reduce manual labor intensity, and promote the development of precision agriculture.
[0003] Existing agricultural plant protection robots typically include components such as an unmanned vehicle chassis, a walking mechanism, a storage tank, and a spray nozzle. They spray pesticides, fertilizers, or water onto plants through the nozzle. However, because the spray nozzles of current agricultural plant protection robots are usually fixed to the unmanned vehicle, they cannot be adjusted at multiple angles or oscillated for spraying, making it difficult to control the spray range and resulting in insufficient flexibility in use.
[0004] Therefore, there is a need to design an agricultural plant protection robot that can adjust the spray pipe at multiple angles and heights, and can swing the spray pipe to spray, so as to adapt to a variety of crops, control the spray range, and use a flexible and controllable spray range. Summary of the Invention
[0005] To overcome the shortcomings of current agricultural plant protection robots, which cannot adjust the spray nozzle at multiple angles or swing it for spraying, making it difficult to control the spray range and lacking flexibility, this invention provides an agricultural plant protection robot that can adjust the spray nozzle at multiple angles and heights, swing it for spraying, adapt to diverse crops, control the spray range, and provide a flexible and controllable spray range.
[0006] The technical implementation of the present invention is as follows: an agricultural plant protection robot with controllable spray range, including an unmanned vehicle, tracks, a storage tank, a conveying component and an adjustment component. Tracks are provided on both the front and rear of the unmanned vehicle. A storage tank is connected to the upper part of the unmanned vehicle. A conveying component capable of conveying liquid is provided between the storage tank and the unmanned vehicle. An adjustment component capable of multi-angle spraying and swing spraying is provided on the right side of the unmanned vehicle.
[0007] More preferably, the storage bin has a screw-on knob at the front.
[0008] More preferably, the conveying assembly includes a storage pipe and a connecting hose, with two storage pipes connected to the front and rear sides of the inner side of the unmanned vehicle, and a connecting hose connected to the right side of each storage pipe.
[0009] More preferably, the connecting hose is made of polyethylene.
[0010] More preferably, it also includes a first motor, a rotating shaft, and control valves. The first motor is connected to the front right side of the unmanned vehicle, and a rotating shaft is connected to the output shaft of the first motor. The rotating shaft is rotatably connected to the unmanned vehicle. The storage pipes are all rotatably connected to the rotating shaft. Control valves are connected to both the front and rear parts of the rotating shaft, and the control valves are all located inside the adjacent storage pipes.
[0011] More preferably, it also includes an adjustment assembly, which includes an electric actuator, a second motor, gears, a support frame, a spray pipe, a third motor, a rotating frame, a connecting frame, and a swing frame. The upper right side of the unmanned vehicle has two rotatable connecting blocks, one in front and one behind. An electric actuator is connected to the upper side of each connecting block. The upper right side of the unmanned vehicle has two second motors, one in front and one behind. Gears are connected to the output shafts of the second motors, and gears are also connected to the outer sides of the connecting blocks. Adjacent gears mesh with each other. A support frame is connected to the telescopic end of each electric actuator. A spray pipe is rotatably connected to the upper part of each support frame, and each spray pipe is connected to an adjacent connecting hose. A third motor is connected to the lower left side of the support frame. A rotating frame is connected to the output shaft of each third motor. A connecting frame is rotatably connected to each rotating frame. A swing frame is rotatably connected to the upper part of each connecting frame, and each swing frame is connected to an adjacent spray pipe.
[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention drives the support frame to move upward through the electric push rod, and drives the electric push rod to rotate through the gear meshing motion, so that the spray pipe rotates horizontally. Then, through the swing frame swinging, the spray pipe swings up and down. When it is only necessary to fix the spraying, the third motor is turned off. This achieves the effect of being able to adjust the spray pipe at multiple angles and heights, and being able to swing the spray pipe for spraying. This makes it easy to adapt to diverse crops, easy to control the spray range, and flexible in use.
[0013] 2. This invention starts the first motor, drives the rotating shaft to rotate, and causes the control valve to rotate. By adjusting the angle of the control valve, the liquid flow rate is adjusted, thereby achieving the ability to adjust the spray volume and facilitating spraying according to different usage needs. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention.
[0016] Figure 3 This is a cross-sectional three-dimensional structural diagram of the conveying component of the present invention.
[0017] Figure 4 This is a three-dimensional structural diagram of the adjustment component of the present invention.
[0018] Figure 5This is a partial cross-sectional three-dimensional structural schematic diagram of the adjustment mechanism of the present invention.
[0019] The components in the attached diagram are labeled as follows: 1. Unmanned vehicle, 2. Track, 3. Storage bin, 4. Storage pipe, 5. Connecting hose, 6. First motor, 7. Rotating shaft, 8. Control valve, 9. Electric actuator, 10. Second motor, 11. Gear, 12. Support frame, 13. Spray pipe, 14. Third motor, 15. Rotating frame, 16. Connecting frame, 17. Swinging frame. Detailed Implementation
[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] An agricultural plant protection robot with controllable spray range, such as Figures 1-5 As shown, the system includes an unmanned vehicle 1, tracks 2, a storage bin 3, a storage pipe 4, a connecting hose 5, a first motor 6, a rotating shaft 7, a control valve 8, an electric actuator 9, a second motor 10, a gear 11, a support frame 12, a spray pipe 13, a third motor 14, a rotating frame 15, a connecting frame 16, and a swing frame 17. The unmanned vehicle 1 has tracks 2 at both the front and rear. The storage bin 3 is connected to the upper part of the unmanned vehicle 1. The storage bin 3 has a threaded knob at the front for easy opening. Two storage pipes 4 are connected to the inner side of the middle of the unmanned vehicle 1, one at the front and one at the rear. A connecting hose 5 is connected to the right side of each storage pipe 4. The connecting hose 5 is made of polyethylene and has good chemical resistance. The first motor 6 is connected to the front right side of the unmanned vehicle 1. A rotating shaft 7 is connected to the output shaft of the first motor 6. The rotating shaft 7 is rotatably connected to the unmanned vehicle 1. All storage pipes 4 are rotatably connected to the rotating shaft 7. The rotating shaft 7 has tracks 2 at both the front and rear. A control valve 8 is connected to the unmanned vehicle 1. The control valve 8 is located inside the adjacent storage pipe 4. The upper right side of the unmanned vehicle 1 is equipped with two connecting blocks, one in front and one behind. The upper side of each connecting block is connected to an electric push rod 9. The upper right side of the unmanned vehicle 1 is connected to two second motors 10, one in front and one behind. The output shaft of the second motor 10 is connected to a gear 11. The outer side of each connecting block is also connected to a gear 11. The two adjacent gears 11 mesh with each other. The telescopic end of each electric push rod 9 is connected to a support frame 12. The upper part of each support frame 12 is rotatably connected to a spray pipe 13. The spray pipe 13 is connected to the adjacent connecting hose 5. The lower left side of the support frame 12 is connected to a third motor 14. The output shaft of each third motor 14 is connected to a rotating frame 15. The rotating frame 15 is rotatably connected to a connecting frame 16. The upper part of each connecting frame 16 is rotatably connected to a swing frame 17. The swing frame 17 is connected to the adjacent spray pipe 13.
[0022] The control system of this device includes a controller (not shown in the figure) located inside the unmanned vehicle 1. This controller is electrically connected to the first motor 6, the second motor 10, the third motor 14, and the electric actuator 9. The controller receives external control signals and controls the start, stop, forward and reverse rotation of each motor, as well as the extension and retraction of the electric actuator, thereby realizing the adjustment of the height, horizontal rotation angle, vertical swing angle, and spray volume of the spray pipe 13. The walking control of the unmanned vehicle 1 is controlled by the controller through the tracks 2. Its walking control method is the same as that of existing agricultural unmanned vehicles, and will not be described in detail here.
[0023] When using this device, first, the unmanned vehicle 1 is moved to the agricultural plant spraying area by the track 2. Then, the turn knob is rotated to discharge the liquid to be sprayed into the storage tank 3. The knob is then rotated to align with the storage tank 3. Next, the electric actuator 9 is activated, which moves the support frame 12 upward. Then, the second motor 10 is activated, which drives the gear 11 to rotate. The gears 11 mesh with each other, causing the electric actuator 9 on the connecting block to rotate, so that the spray pipe 13 rotates horizontally to a certain position. Then, the second motor 10 is turned off, and the third motor 14 is activated, which drives the rotating frame 15 and the connecting frame 16 to rotate, so that the swing frame 17 swings, causing the spray pipe 13 to swing up and down, thereby performing swing spraying and making the spraying range wider. When only fixed spraying is required, the angle of the spray pipe 13 can be adjusted to a certain position by rotating the swing frame 17, and then the third motor 14 can be turned off. This allows for multi-angle and height adjustment of the spray pipe 13, and also enables swing spraying, which is convenient for adapting to complex terrain and diverse crops, and facilitates control of the spray range. It is flexible in use. Afterwards, the liquid in the storage tank 3 is discharged from the spray pipe 13 through the storage pipe 4 and the connecting hose 5. When it is necessary to adjust the spray volume, the first motor 6 can be started to drive the rotating shaft 7 to rotate, causing the control valve 8 to rotate. By adjusting the angle of the control valve 8, the liquid flow rate can be adjusted, thereby adjusting the spray volume to facilitate spraying according to different usage needs.
[0024] The technical principles of the embodiments of the present invention have been described above with reference to specific examples. These descriptions are merely for explaining the principles of the embodiments of the present invention and should not be construed as limiting the scope of protection of the embodiments of the present invention in any way. Based on the explanation herein, those skilled in the art can conceive of other specific embodiments of the present invention without creative effort, and these embodiments will all fall within the scope of protection of the embodiments of the present invention.
Claims
1. An agricultural plant protection robot with controllable spraying range, characterized in that, It includes an unmanned vehicle (1), tracks (2), a storage tank (3), a conveying component and an adjustment component. The unmanned vehicle (1) is equipped with tracks (2) at both the front and rear. The storage tank (3) is connected to the upper part of the unmanned vehicle (1). A conveying component capable of conveying liquid is provided between the storage tank (3) and the unmanned vehicle (1). An adjustment component capable of multi-angle spraying and swing spraying is provided on the right side of the unmanned vehicle (1). A controller is provided inside the unmanned vehicle (1). The controller is electrically connected to each electrical component of the adjustment component.
2. An agricultural plant protection robot with controllable spraying range according to claim 1, characterized in that, The storage box (3) has a screw-type knob at the front.
3. An agricultural plant protection robot with controllable spraying range according to claim 1, characterized in that, The conveying assembly includes a storage pipe (4) and a connecting hose (5). The unmanned vehicle (1) is connected to two storage pipes (4) in the middle and on the inner side. The storage pipes (4) are connected to the right side of the connecting hose (5).
4. An agricultural plant protection robot with controllable spraying range according to claim 3, characterized in that, The connecting hose (5) is made of polyethylene.
5. An agricultural plant protection robot with controllable spraying range according to claim 1, characterized in that, It also includes a first motor (6), a rotating shaft (7) and a control valve (8). The first motor (6) is connected to the front right side of the unmanned vehicle (1). The rotating shaft (7) is connected to the output shaft of the first motor (6). The rotating shaft (7) is rotatably connected to the unmanned vehicle (1). The storage pipe (4) is rotatably connected to the rotating shaft (7). The front and rear parts of the rotating shaft (7) are connected to the control valve (8). The control valve (8) is located inside the adjacent storage pipe (4).
6. An agricultural plant protection robot with controllable spraying range according to claim 1, characterized in that, It also includes an adjustment assembly, which includes an electric push rod (9), a second motor (10), a gear (11), a support frame (12), a spray pipe (13), a third motor (14), a rotating frame (15), a connecting frame (16), and a swing frame (17). The upper right side of the unmanned vehicle (1) is provided with two connecting blocks, one in front and one behind. The upper side of each connecting block is connected to an electric push rod (9). The upper right side of the unmanned vehicle (1) is connected to two second motors (10), one in front and one behind. The output shaft of the second motor (10) is connected to a gear (11). The outer side of each connecting block is also connected to a gear (11). The two adjacent... Gears (11) mesh with each other, and support frames (12) are connected to the telescopic ends of electric push rods (9). Spray pipes (13) are rotatably connected to the upper part of support frames (12). Spray pipes (13) are connected to adjacent connecting hoses (5). A third motor (14) is connected to the lower left side of support frame (12). Rotating frames (15) are connected to the output shaft of the third motor (14). Connecting frames (16) are rotatably connected to rotating frames (15). Swing frames (17) are rotatably connected to the upper part of connecting frames (16). Swing frames (17) are connected to adjacent spray pipes (13).