A drone-based forestry pest control sprayer

By employing a motor-driven active rod and screw structure in the drone sprayer, the problem of cumbersome adjustment caused by fixed nozzle position is solved, enabling dense spraying of pesticides and ensuring coverage in windy weather, thus improving spraying efficiency.

CN224419867UActive Publication Date: 2026-06-30HENAN UAV TEST CENT CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN UAV TEST CENT CO LTD
Filing Date
2025-06-10
Publication Date
2026-06-30

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    Figure CN224419867U_ABST
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Abstract

This utility model relates to the field of biological control device technology, and in particular to a forestry pest control sprayer based on a drone. The drone body has a liquid storage tank fixedly connected to its upper end. An inlet pipe is fixedly connected to the upper end of the liquid storage tank, and the inlet end of a drain pipe is fixedly connected to the bottom of the liquid storage tank. A drain valve is installed on the drain pipe, and the outlet end of the drain pipe is fixedly connected to the inlet end of a booster pump. The outlet end of the booster pump is fixedly connected to the inlet end of a three-way pipe. The two outlet ends of the three-way pipe are respectively fixedly connected to the inlet ends of flexible conduits. The outlet ends of each flexible conduit are respectively fixedly connected to atomizing nozzles. A mounting cover is rotatably connected to an active rod. The active rod has two screw sections with opposite thread directions. The mounting cover is fixedly connected to a guide rod. Each screw section is threadedly connected to a sliding rod that is slidably connected to the guide rod. The sliding rods correspond one-to-one with and are fixedly connected to the atomizing nozzles.
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Description

Technical Field

[0001] This utility model relates to the field of biological control devices, and in particular to a forestry pest control sprayer based on a drone. Background Technology

[0002] In the process of forestry development and production, pests and diseases are inevitable. If preventive measures are not taken in time, they will inevitably have a negative impact on forestry development. With the advancement of society and technology, drones are now often used for pest control in forestry. Using drones to spray pesticides for biological control not only saves a lot of manpower but also has extremely high efficiency. However, the nozzle position of current drone sprayers is fixed and inconvenient to adjust. In actual spraying, sometimes due to strong winds, relatively dense spraying is needed to ensure the coverage of the pesticide. At this time, it is necessary to adjust the sprayer nozzles to be closer together. However, the adjustment of the current sprayer nozzles is relatively cumbersome. In view of this, this application proposes a drone-based forestry pest control sprayer. Utility Model Content

[0003] To address the above situation and overcome the shortcomings of existing technologies, this utility model provides a forestry pest control sprayer based on a drone. The technical solution it provides includes a drone body, characterized in that a liquid storage tank is fixedly connected to the upper end of the drone body; an inlet pipe is fixedly connected to the upper end of the liquid storage tank; the inlet end of a drain pipe is fixedly connected to the bottom of the liquid storage tank; a drain valve is installed on the drain pipe; the outlet end of the drain pipe is fixedly connected to the inlet end of a booster pump; and the outlet end of the booster pump is fixedly connected to the inlet end of a three-way pipe. The two outlet ends are respectively fixedly connected to the inlet ends of flexible conduits, and the outlet ends of each flexible conduit are respectively fixedly connected to atomizing nozzles. The lower end of the UAV body is fixedly connected to a mounting cover, and the mounting cover is rotatably connected to an active rod. The active rod has two screw sections with opposite thread directions. The mounting cover is fixedly connected to a guide rod arranged parallel to the active rod. Each screw section is threadedly connected to a movable rod that is slidably connected to the guide rod. The movable rod corresponds to and is fixedly connected to the atomizing nozzles. The mounting cover is fixedly connected to a motor for driving the active rod.

[0004] Preferably, the lower end of the drone body is fixedly connected to the upper end of a support rod, and the lower end of the support rod is fixedly connected to the mounting cover.

[0005] Preferably, each of the movable rods is fixedly connected to a clamp that is fixedly connected to the atomizing nozzle on its corresponding side.

[0006] Preferably, each of the movable rods is fixedly connected to an internally threaded sleeve that is threadedly connected to the screw portion on its corresponding side, and each of the movable rods is fixedly connected to a guide sleeve that is slidably connected to the guide rod.

[0007] Preferably, the upper part of the drone body is fixedly connected with a pressure strip for a stable liquid storage tank.

[0008] Preferably, the inlet pipe is threaded with an end cap.

[0009] The beneficial effects of this utility model are:

[0010] In use, the liquid storage tank is securely attached to the upper part of the drone body by a pressure strip, facilitating the spraying of pesticides by the drone to achieve the purpose of pest control. When there is strong wind or other weather conditions that prevent the spraying time from being staggered, and it is necessary to adjust the spacing of the atomizing nozzles to ensure the coverage of the pesticide, simply start the motor to drive the drive rod to rotate clockwise. When the drive rod rotates clockwise, the two screws will rotate synchronously, thereby driving the two moving rods to move closer to each other. As the two moving rods move closer to each other, the two atomizing nozzles will move closer to each other synchronously, thus conveniently adjusting the spacing of the atomizing nozzles. This allows for dense spraying of pesticides in windy weather, ensuring the coverage area. Attached Figure Description

[0011] Figure 1 This is the front view of the present utility model.

[0012] Figure 2 This is a first-person perspective stereoscopic view of the present invention.

[0013] Figure 3 This is a second-view perspective sectional view of the present invention.

[0014] Figure 4 This is a partial stereoscopic view of the present invention from a third-person perspective.

[0015] Figure 5 This is a partial three-dimensional sectional view of the fourth perspective of this utility model.

[0016] Figure Labels

[0017] 1. UAV body, 2. Liquid storage tank, 3. Liquid inlet pipe, 4. Liquid outlet pipe, 5. Liquid outlet valve, 6. Booster pump, 7. T-connector, 8. Flexible conduit, 9. Atomizing nozzle, 10. Mounting cover, 11. Drive rod, 12. Screw section, 13. Guide rod, 14. Moving rod, 15. Motor, 16. Support rod, 17. Clamp, 18. Internal threaded sleeve, 19. Guide sleeve, 20. Pressure strip, 21. End cap. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1-5The specific embodiments of this utility model will be described in further detail.

[0019] In the first embodiment, the technical solution is as follows: When in use, the liquid storage tank 2 is fixedly attached to the upper part of the drone body 1 by the pressure strip 20, which facilitates the spraying of pesticide by the drone to achieve the purpose of pest control. When there is strong wind or other weather conditions and the spraying time cannot be staggered, in order to ensure the coverage of the pesticide, it is necessary to adjust the spacing of the atomizing nozzles 9. Simply start the motor 15 to drive the active rod 11 to rotate clockwise. When the active rod 11 rotates clockwise, the two screw parts 12 will rotate synchronously, thereby driving the two moving rods 14 to move closer to each other. As the two moving rods 14 move closer to each other, the two atomizing nozzles 9 will move closer to each other synchronously, thereby conveniently realizing the adjustment of the spacing of the atomizing nozzles 9, so as to carry out dense spraying of pesticide in windy weather and ensure the coverage area. The mounting cover 10 of this application is connected to the lower part of the drone body 1 by the support rod 16, while the guide rod 13 and the active rod 11 together with the screw parts 12 are hidden in the mounting cover 10.

[0020] In Example 2, based on Example 1, specifically, when using this application, the end cap 21 can be opened to add the liquid medicine from the inlet pipe 3 into the storage tank 2 for spraying, thereby achieving pest control. When spraying the liquid medicine, the drain valve 5 is opened and the booster pump 6 is started. The liquid medicine in the storage tank 2 will then enter the booster pump 6 through the drain pipe 4 for pressurization to ensure that the liquid medicine has sufficient spraying pressure. Afterwards, the liquid medicine is released from the booster pump 6 through the three-way pipe 7 and the flexible conduit 8 in sequence and then from the atomizing nozzle 9. With the flight of the UAV body 1, the spraying of the liquid medicine can be completed efficiently.

[0021] When the spacing of the atomizing nozzles 9 needs to be adjusted, the motor 15 on the mounting cover 10 is started and rotated clockwise. When the motor 15 rotates clockwise, the drive rod 11 rotates clockwise accordingly, and the two screw parts 12 on the drive rod 11 rotate clockwise synchronously. Since the threads of the two screw parts 12 are opposite, as the two screw parts 12 rotate clockwise, the two moving rods 14 move closer to each other along the guide rod 13. Consequently, the atomizing nozzles 9, which are fixedly connected to the moving rods 14 by the clamp 17, also move closer to each other. Correspondingly, when it is necessary to adjust the two atomizing nozzles 9 to move further apart, simply start the motor 15 and rotate it counterclockwise. The drive rod 11 then rotates counterclockwise, and the two screw parts 12 drive the two moving rods 14 and the atomizing nozzles 9 and other related components to move further apart.

[0022] In Embodiment 3, based on Embodiment 2, the movable rod 14 of this application is threadedly connected to the screw portion 12 on the active rod 11 via the internal threaded sleeve 18. At the same time, the movable rod 14 is also slidably engaged with the guide rod 13 via the guide sleeve 19. Therefore, the rotation of the screw portion 12 on the active rod 11 can drive the movable rod 14 to slide along the guide rod 13.

Claims

1. A forestry pest control sprayer based on unmanned aerial vehicles (UAVs), comprising a UAV body (1), characterized in that, The upper end of the UAV body (1) is fixedly connected to a liquid storage tank (2), the upper end of the liquid storage tank is fixedly connected to an inlet pipe (3), the bottom of the liquid storage tank (2) is fixedly connected to the inlet end of a drain pipe (4), a drain valve (5) is installed on the drain pipe (4), the outlet end of the drain pipe (4) is fixedly connected to the inlet end of a booster pump (6), the outlet end of the booster pump (6) is fixedly connected to the inlet end of a three-way pipe (7), the two outlet ends of the three-way pipe (7) are respectively fixedly connected to the inlet ends of flexible conduits (8), and the outlet ends of each flexible conduit (8) are respectively fixedly connected to atomizing nozzles (9). The lower end of the UAV body (1) is fixedly connected to a mounting cover (10), and the mounting cover (10) is rotatably connected to an active rod (11). The active rod (11) is integrally arranged with two screw parts (12) with opposite screw directions. The mounting cover (10) is fixedly connected to a guide rod (13) arranged parallel to the active rod (11). Each screw part (12) is threadedly connected to a moving rod (14) that is slidably connected to the guide rod (13). The moving rod (14) corresponds to and is fixedly connected to the atomizing nozzle (9). The mounting cover (10) is fixedly connected to a motor (15) for driving the active rod (11).

2. The forestry pest control sprayer based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, The lower end of the UAV body (1) is fixedly connected to the upper end of the support rod (16), and the lower end of the support rod (16) is fixedly connected to the mounting cover (10).

3. The forestry pest control sprayer based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, Each of the moving rods (14) is fixedly connected to a clamp (17) that is fixedly connected to the atomizing nozzle (9) on its corresponding side.

4. The forestry pest control sprayer based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, Each of the moving rods (14) is fixedly connected to an internal threaded sleeve (18) that is threaded to the screw part (12) on its corresponding side, and each of the moving rods (14) is fixedly connected to a guide sleeve (19) that is slidably connected to the guide rod (13).

5. A forestry pest control sprayer based on a drone according to claim 1, characterized in that, The upper end of the UAV body (1) is fixedly connected with a pressure strip (20) for a stable liquid storage tank (2).

6. The forestry pest control sprayer based on unmanned aerial vehicles (UAVs) according to claim 1, characterized in that, The inlet pipe (3) is threadedly connected to an end cap (21).