Plant protection unmanned aerial vehicle pesticide suspension stirring device

By introducing a quick positioning mechanism combining a T-shaped locking rod and a spring into the pesticide suspension mixing device of an agricultural drone, the problem of inaccurate positioning of the mounting base in the existing technology has been solved, enabling rapid installation and disassembly of the device and improving the efficiency and stability of pesticide suspension mixing in the drone.

CN224131297UActive Publication Date: 2026-04-17YICHANG HONGAN SMART AGRICULTURE TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YICHANG HONGAN SMART AGRICULTURE TECHNOLOGY CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing pesticide suspension and mixing devices on agricultural drones lack a rapid positioning mechanism, making it difficult for operators to quickly and accurately install the mounting base to the designated position when installing or replacing the mixing device, thus reducing the installation efficiency of the equipment.

Method used

The quick positioning mechanism uses a combination of a T-shaped locking rod and a spring. By pressing the T-shaped locking rod, the spring retracts, achieving precise positioning of the mounting base. Combined with the cooperation of the cylindrical locking limit rod and the arc-shaped locking groove, the installation and positioning of the mounting base is quickly completed, and it is then fixed by tightening the bolts.

Benefits of technology

It enables rapid installation and disassembly of the mixing device, improves the installation efficiency of the equipment, and ensures the stability and efficiency of the mixing process when the drone is suspended in the air.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of plant protection unmanned aerial vehicles, and particularly discloses a plant protection unmanned aerial vehicle pesticide suspension stirring device which is characterized in that the upper end part of a pesticide containing barrel is slidably connected with a T-shaped clamping rod, the upper end part of the pesticide containing barrel is fixedly connected with a spring, and the T-shaped clamping rod is sleeved on the outer surface of the spring; cylindrical clamping limiting rods are fixedly connected into the T-shaped clamping rods, the surfaces of the two T-shaped clamping rods are pressed towards the middle position of the pesticide containing barrel, the two T-shaped clamping rods slide to enable an extrusion spring to contract, and at the moment, the additionally-installed base is aligned with the surface of the bearing seat to be pressed and placed on the surface of the upper end of the pesticide containing barrel; the surface of the lower end of the additionally-installed base is attached to the upper surface of the pesticide containing barrel through pressing, at the moment, the two T-shaped clamping rods are loosened, the T-shaped clamping rods are pushed to slide and reset under the acting force of springs, the T-shaped clamping rods are clamped in arc clamping grooves through internally-installed cylindrical clamping limiting rods when sliding, and positioning operation before the additionally-installed base is installed is rapidly achieved.
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Description

Technical Field

[0001] This utility model relates to the field of plant protection drone technology, and in particular to a pesticide suspension and mixing device for plant protection drones. Background Technology

[0002] The pesticide suspension and mixing device for agricultural drones is mainly used to efficiently mix pesticides during drone flight, ensuring uniform suspension of pesticide components, preventing sedimentation, guaranteeing spraying effectiveness, and improving the efficiency of crop pest and disease control. This device is widely used in pesticide spraying operations in large-scale farmland, orchards, and other crop-growing areas. Through the operation of the mixing device, the pesticide remains in a good suspended state before spraying, effectively improving pesticide utilization and reducing problems such as localized pesticide damage or poor control effects caused by uneven pesticide application. Currently, the following technologies are typically required for the practical application of pesticide suspension and mixing devices for agricultural drones:

[0003] 1. High-efficiency mixing technology: By rationally designing the shape, size and speed of the mixing rod, the pesticide is quickly and evenly mixed, ensuring that the various components in the pesticide are fully mixed and kept in suspension.

[0004] 2. Stable drive technology: Provides stable power to the stirring rod, ensuring that the drive motor can still operate reliably in the vibration environment during the drone's flight and maintain the stable rotation of the stirring rod.

[0005] 3. Sealing and protection technology: Prevents pesticide leakage, avoids corrosion of drone components, and protects the surrounding environment from pesticide pollution.

[0006] Lightweight design technology: While ensuring device performance, minimize device weight to reduce the impact on drone flight performance and improve drone endurance and operational flexibility.

[0007] Currently, various devices and methods are used to achieve the pesticide suspension and mixing function of agricultural drones. Some devices use a simple bracket structure to mount the drive motor and mixing rod on the bottom of the drone, and fix them with bolts or other connectors. Other devices are designed with a special rotating mounting base to provide installation space for the drive motor and mixing rod, and are fixed by tightening nuts or other methods.

[0008] However, the above method has a prominent problem: existing devices usually lack the quick positioning effect of the mounting base. In actual operation, when it is necessary to install or replace the mixing device, due to the lack of a quick positioning mechanism, it is difficult for operators to quickly and accurately install the mounting base into the designated position. It often takes a lot of time to adjust and calibrate, which reduces the installation efficiency of the equipment. Utility Model Content

[0009] To address the shortcomings of existing technologies, this utility model provides a pesticide suspension and mixing device for agricultural drones. It solves the problem that devices often lack a quick positioning mechanism for mounting brackets. In actual operations, when it is necessary to install or replace the mixing device, the lack of a quick positioning mechanism makes it difficult for operators to quickly and accurately install the mounting bracket to the designated position. This often requires a lot of time for adjustment and calibration, reducing the installation efficiency of the equipment.

[0010] To achieve the above objectives, this utility model provides the following technical solution:

[0011] A pesticide suspension and mixing device for a plant protection drone includes a pesticide container. A T-shaped locking rod is slidably connected to the upper end of the pesticide container. A spring is fixedly connected to the upper end of the pesticide container. The T-shaped locking rod is sleeved on the outer surface of the spring. A cylindrical locking limit rod is fixedly connected inside the T-shaped locking rod. An additional base is provided at the upper end of the pesticide container. An arc-shaped locking groove is opened inside the additional base. The cylindrical locking limit rod is locked inside the arc-shaped locking groove.

[0012] Preferably, the base is fitted with a bearing seat, and the bearing seat is fitted with a stirring rod.

[0013] Preferably, the stirring rod is rotatably connected inside the pesticide container, and a drive motor is provided at the upper end of the mounting base.

[0014] Preferably, the mounting base and the drive motor are internally threaded and connected by fixing bolts, and the stirring rod is disposed on the outer surface of the drive motor.

[0015] Preferably, the lower end of the pesticide container is fixedly connected to the drone body, and four support shaft seats are fixedly connected to the outer surface of the drone body.

[0016] Preferably, each of the four support shaft seats has a rotating blade rotatably connected inside, and each of the four support shaft seats has a spray pipe at its lower end.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Press the two T-shaped locking rods on the middle of the pesticide container. As the two T-shaped locking rods slide, they will compress the spring. At this time, align the mounting base with the bearing seat surface and press it onto the upper surface of the pesticide container. Press to make the lower surface of the mounting base fit against the upper surface of the pesticide container. Then release the two T-shaped locking rods. Under the action of the spring, push the T-shaped locking rods to slide back to their original position. When the T-shaped locking rods slide, they are engaged in the arc groove by the internal cylindrical locking limit rod, which quickly achieves the positioning operation before the mounting base is installed.

[0019] 2. When the drone takes off and reaches mid-air, the speed of the rotating blades can be controlled to keep the drone in a suspended state. In the suspended state, the drive motor set on the top of the pesticide container can be started. The output shaft of the drive motor drives the stirring rod to rotate and achieve mixing. For the use environment where sedimentation is easy to occur and long-term spraying is required, the drone can be controlled to levitate and mix the materials during the operation. Attached Figure Description

[0020] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is an exploded view of the stirring rod connection of this utility model;

[0023] Figure 3 This is an exploded view of the base connection of this utility model;

[0024] Figure 4 This is an exploded view of the T-shaped snap-fit ​​rod connection of this utility model.

[0025] Legend: 11. Pesticide container; 12. T-shaped locking rod; 13. Spring; 14. Cylindrical locking limit rod; 15. Base; 16. Arc-shaped slot; 17. Bearing seat; 18. Stirring rod; 19. Drive motor; 21. Fixing bolt; 22. UAV body; 23. Support shaft seat; 24. Rotating blade; 25. Spraying pipe. Detailed Implementation

[0026] This application provides a pesticide suspension and mixing device for agricultural drones, effectively solving the problem of the lack of a quick positioning mechanism for mounting bases in such devices. In actual operation, when it is necessary to install or replace the mixing device, the lack of a quick positioning mechanism makes it difficult for operators to quickly and accurately install the mounting base to the designated position, often requiring a lot of time for adjustment and calibration, which reduces the installation efficiency of the equipment. Press the two T-shaped locking rods on the surface of the middle of the pesticide container. When the two T-shaped locking rods slide, they compress the compression spring. At this time, the mounting base is aligned with the bearing seat surface and pressed onto the upper surface of the pesticide container. By pressing, the lower surface of the mounting base is made to fit against the upper surface of the pesticide container. Then, the two T-shaped locking rods are released, and under the action of the spring, the T-shaped locking rods slide back to their original position. When the T-shaped locking rods slide, they are locked in the arc groove by the internally installed cylindrical locking limit rod, which quickly realizes the positioning operation before the mounting base is installed.

[0027] Example

[0028] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in this application embodiment effectively solves the problem of the lack of a quick positioning mechanism for the mounting base in the device. In actual operation, when it is necessary to install or replace the mixing device, due to the lack of a quick positioning mechanism, it is difficult for operators to quickly and accurately install the mounting base to the designated position. It often takes a lot of time to adjust and calibrate, which reduces the installation efficiency of the equipment. The overall idea is as follows: A pesticide suspension mixing device for agricultural drones, including a pesticide holding tank 11, and an upper end of the pesticide holding tank 11 A T-shaped locking rod 12 is slidably connected. A spring 13 is fixedly connected to the upper end of the pesticide container 11. The T-shaped locking rod 12 is sleeved on the outer surface of the spring 13. A cylindrical locking limit rod 14 is fixedly connected inside the T-shaped locking rod 12. A mounting base 15 is provided at the upper end of the pesticide container 11. An arc-shaped locking groove 16 is opened inside the mounting base 15. The cylindrical locking limit rod 14 is locked inside the arc-shaped locking groove 16. Pressing the surfaces of the two T-shaped locking rods 12 towards the middle of the pesticide container 11 causes the two T-shaped locking rods to engage. When the base 12 slides, it compresses the spring 13. At this time, the mounting base 15 is aligned with the surface of the bearing seat 17 and pressed onto the upper surface of the pesticide container 11. By pressing, the lower surface of the mounting base 15 is made to fit against the upper surface of the pesticide container 11. Then, the two T-shaped locking rods 12 are released. Under the force of the spring 13, the T-shaped locking rods 12 are pushed to slide back to their original position. When the T-shaped locking rods 12 slide, they are locked into the arc-shaped locking groove 16 by the internally installed cylindrical locking limit rod 14, quickly realizing the positioning of the mounting base 15 before installation. In this position, the mounting base 15 can be installed and fixed by tightening the bolts. The drive motor 19 is installed on the upper end of the mounting base 15 by tightening the fixing bolts 21. Before installation, the stirring rod 18 should be aligned with the output shaft end of the drive motor 19. The installation of the stirring rod 18 and the drive motor 19 can then be completed. Multiple rectangular holes are opened in the mounting base 15. When tightening the bolts to install the mounting base 15, the bolts are passed through the rectangular holes and screwed onto the cover at the upper end of the pesticide container 11.

[0029] The base 15 is fitted with a bearing housing 17, and the bearing housing 17 is fitted with a stirring rod 18. The stirring rod 18 is rotatably connected inside the pesticide container 11. The upper end of the base 15 is equipped with a drive motor 19. The base 15 and the drive motor 19 are internally threaded with fixing bolts 21. The stirring rod 18 is set on the outer surface of the drive motor 19. The stirring rod 18 and the drive motor 19 can be selectively installed. When dealing with materials that are stable and do not easily settle, the stirring rod 18 and the drive motor 19 can be rotated to disassemble them. When installing the stirring rod 18 and the drive motor 19, the cover at the top of the pesticide container 11 is opened by turning the bolts. At this time, the stirring rod 18 and the bearing housing 17 are fitted together from bottom to top along the cover.

[0030] A drone body 22 is fixedly connected to the lower end of a pesticide container 11. Four support shaft seats 23 are fixedly connected to the outer surface of the drone body 22. Rotating blades 24 are rotatably connected inside each of the four support shaft seats 23. Spray pipes 25 are provided at the lower ends of the four support shaft seats 23 to inject plant protection spraying materials into the pesticide container 11. A cylindrical injection groove is opened at the upper end of the pesticide container 11. After injection, the injection groove is sealed by screwing on an external threaded baffle. The drone body 22 at the lower end of the pesticide container 11 drives the pesticide container 11 to take off. The drone body 22 includes a drive power supply, i.e., a battery, and a control unit that controls the rotation speed of the rotating blades 24, starts the drone, and receives remote control commands. The rotation of the rotating blades 24 enables the drone to fly. Upon takeoff, the pesticide storage tank 11 sprays the material stored in it along the spray pipe 25. When the drone is in mid-air, the rotation speed of the rotating blades 24 can be controlled to keep the drone in a suspended state. In the suspended state, the drive motor 19 set at the top of the pesticide storage tank 11 can be started. The output shaft of the drive motor 19 drives the stirring rod 18 to rotate and achieve mixing. In the application environment where sedimentation is easy to occur and long-term spraying is required, the drone can be kept suspended and the material can be mixed during operation. The drive motor 19 is powered by the power supply inside the drone body 22. The surface of the drone body 22 should be equipped with a support frame for landing and recovery. The support frame should be installed on both sides of the drone body 22.

[0031] To address the problems existing in the prior art, this utility model provides a pesticide suspension and stirring device for plant protection drones. Two T-shaped locking rods 12 are pressed onto the surface of the pesticide container 11 at its center. As the two T-shaped locking rods 12 slide, they compress the compression spring 13. At this time, the mounting base 15 is aligned with the surface of the bearing seat 17 and pressed onto the upper surface of the pesticide container 11. Pressing causes the lower surface of the mounting base 15 to adhere to the upper surface of the pesticide container 11. Then, the two T-shaped locking rods 12 are released, and under the force of the spring 13, the T-shaped locking rods 12 slide back to their original position. As the T-shaped locking rods 12 slide, they are engaged in the arc-shaped groove 16 by the internally installed cylindrical locking limit rod 14, quickly achieving the positioning operation before the mounting base 15 is installed.

[0032] Working principle:

[0033] The first step involves injecting plant protection spraying material into the pesticide container 11. A cylindrical injection groove is located at the top of the pesticide container 11. After injection, the groove is sealed by screwing on an external threaded baffle. The pesticide container 11 is then propelled into flight by the drone body 22 at the bottom. The drone body 22 includes a drive power source (battery) and a control unit that controls the rotation speed of the rotating blades 24, starts the drone, and receives remote control commands. The rotation of the blades 24 enables the drone to take off. Once airborne, the material stored in the pesticide container 11 is sprayed out along the spray pipe 25 for spraying. The process continues until the drone reaches its designated position. When in mid-air, the drone can be kept in a suspended state by controlling the rotation speed of the rotating blades 24. In the suspended state, the drive motor 19 set at the top of the pesticide container 11 can be started. The output shaft of the drive motor 19 drives the stirring rod 18 to rotate to achieve stirring and mixing. For the use environment where sedimentation is easy to occur and long-term spraying is required, the drone can be kept in a suspended state during operation and the material can be stirred and mixed. The drive motor 19 is powered by the power supply inside the drone body 22. The surface of the drone body 22 should be equipped with a support frame for landing and recovery. The support frame should be installed on both sides of the drone body 22.

[0034] The second step involves selectively installing the stirring rod 18 and drive motor 19. For materials with stable properties that are not prone to sedimentation, the stirring rod 18 and drive motor 19 can be disassembled by rotation. During installation, the cover at the top of the pesticide container 11 is opened by tightening the bolts. The stirring rod 18 and bearing seat 17 are then fitted together from bottom to top along the cover. The surfaces of the two T-shaped locking rods 12 are pressed towards the middle of the pesticide container 11. As the two T-shaped locking rods 12 slide, they retract the compression spring 13. The mounting base 15 is then aligned with the surface of the bearing seat 17 and pressed onto the upper surface of the pesticide container 11. The lower surface of the mounting base 15 is pressed to fit against the upper surface of the pesticide container 11. Then, the cover is released. Two T-shaped locking rods 12 are pushed to slide and reset under the force of spring 13. When the T-shaped locking rods 12 slide, they are locked in the arc groove 16 by the internally installed cylindrical locking limit rod 14, which quickly realizes the positioning operation before the installation of the base 15. At this time, the base 15 can be installed and fixed by screwing in the bolts. The drive motor 19 is installed on the upper end of the base 15 by screwing in the fixing bolts 21. Before the installation operation, the stirring rod 18 needs to be aligned with the output shaft end of the drive motor 19 to complete the installation operation of the stirring rod 18 and the drive motor 19. Multiple rectangular holes are opened in the base 15. When screwing in the bolts to install the base 15, the bolts are passed through the rectangular holes and screwed into the cover at the upper end of the pesticide container 11.

[0035] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. An agricultural unmanned aerial vehicle pesticide suspension stirring device, comprising a pesticide containing barrel (11), a T-shaped clamping rod (12) is slidably connected to the upper end of the pesticide containing barrel (11), characterized in that, A spring (13) is fixedly connected to the upper end of the pesticide container (11), and a T-shaped locking rod (12) is sleeved on the outer surface of the spring (13). A cylindrical locking limit rod (14) is fixedly connected inside the T-shaped locking rod (12), and an additional base (15) is provided at the upper end of the pesticide container (11). The base (15) has an arc groove (16) inside, and the cylindrical locking limit rod (14) is locked inside the arc groove (16).

2. The plant protection unmanned aerial vehicle pesticide suspension stirring device according to claim 1, characterized in that, The mounting base (15) is internally fitted with a bearing seat (17); The bearing housing (17) is fitted with a stirring rod (18).

3. The unmanned aerial vehicle pesticide suspension stirring device for plant protection according to claim 2, characterized in that, The stirring rod (18) is rotatably connected inside the pesticide container (11); The upper end of the mounting base (15) is provided with a drive motor (19).

4. The unmanned aerial vehicle pesticide suspension stirring device for plant protection according to claim 3, characterized in that, The mounting base (15) and the drive motor (19) are internally threaded with fixing bolts (21); The stirring rod (18) is disposed on the outer surface of the drive motor (19).

5. The unmanned aerial vehicle pesticide suspension stirring device for plant protection according to claim 4, characterized in that, The pesticide container (11) is fixedly connected to the lower end of the drone body (22); The outer surface of the main body (22) of the UAV is fixedly connected with four support shaft seats (23).

6. The unmanned aerial vehicle pesticide suspension stirring device for plant protection according to claim 5, characterized in that, Each of the four support shaft seats (23) is rotatably connected to a rotating blade (24); Each of the four support shaft seats (23) is provided with a spray pipe (25) at its lower end.