Anti-interference forestry operation unmanned aerial vehicle under complex electromagnetic environment

By installing a bracket and sleeve frame at the bottom of the drone, and incorporating a clearing column and dynamic signal anti-interference technology inside the nozzle, the problems of nozzle clogging and electromagnetic interference in forestry operation drones have been solved, enabling normal spraying of pesticides and stable drone landing.

CN224146169UActive Publication Date: 2026-04-21云南省林业调查规划院(云南省森林和草原资源监测中心、云南省自然保护地研究监测中心)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
云南省林业调查规划院(云南省森林和草原资源监测中心、云南省自然保护地研究监测中心)
Filing Date
2025-06-12
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The nozzles of forestry drones are prone to clogging in complex electromagnetic environments, a problem that is difficult to solve effectively with existing technologies.

Method used

A bracket and sleeve frame are installed at the bottom of the drone, and a clearing column is installed inside the nozzle. Dynamic signal anti-interference technology is adopted, and a baffle and control pipe are installed inside the nozzle to clear blockages.

Benefits of technology

It effectively prevents nozzle clogging, ensures normal spraying of pesticides, and keeps the drone level in complex terrain, reducing the impact of electromagnetic interference.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, in particular to an anti-interference forestry operation unmanned aerial vehicle in a complex electromagnetic environment, which comprises an unmanned aerial vehicle, a support is fixedly connected to the bottom of the unmanned aerial vehicle, a spring is fixedly connected to the bottom of the support, a sleeve frame is movably connected to the outer side of the support, and a spray pipe is arranged at the bottom of the unmanned aerial vehicle. A nozzle box is arranged at the bottom of the spraying pipe, a nozzle is arranged at the bottom of the nozzle box, a dredging column is arranged in the nozzle, and a signal box is arranged at the top of the unmanned aerial vehicle. According to the anti-interference forestry operation unmanned aerial vehicle in the complex electromagnetic environment, when liquid medicine is sprayed, water pressure can push the dredging column to move towards the exterior of the spray head, so that some blockages in the spray head can be dredged, spraying of the liquid medicine is not affected completely due to the diameter difference, and the spray head is prevented from being blocked.
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Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to an anti-interference forestry operation UAV operating in complex electromagnetic environments. Background Technology

[0002] Drones are unmanned aircraft controlled by radio remote control equipment and their own program control devices, or operated autonomously by an onboard computer, either completely or intermittently. In the civilian sector, the application of drones in various industries is the real necessity, with applications in aerial photography, agriculture, plant protection, miniature selfies, express delivery, disaster relief, wildlife observation, infectious disease monitoring, surveying, news reporting, power line inspection, disaster relief, film and television shooting, and creating romance, among other fields.

[0003] Currently, when forestry drones spray pesticides, the nozzles inevitably become clogged due to the working environment. Therefore, there is an urgent need for a forestry drone that can withstand interference in complex electromagnetic environments. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model proposes an anti-interference forestry operation drone for complex electromagnetic environments to solve the problem of nozzle clogging.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An anti-interference forestry operation drone in a complex electromagnetic environment includes a drone, a bracket fixedly connected to the bottom of the drone, a spring fixedly connected to the bottom of the bracket, and a sleeve frame movably connected to the outside of the bracket.

[0007] The drone is equipped with a nozzle at the bottom, a nozzle box at the bottom of the nozzle, a nozzle at the bottom of the nozzle box, a dredging column inside the nozzle, and a signal box at the top of the drone.

[0008] A baffle is fixedly connected to the inner wall of the nozzle, a control tube is provided on the top of the baffle, a T-shaped column is provided on the outside of the unblocking column, a second spring is provided inside the control tube, and the bottom of the T-shaped column is fixedly connected to the top of the second spring.

[0009] Preferably, the nozzle is provided with a locking buckle inside, and the nozzle is provided with a connecting pipe.

[0010] Preferably, the locking buckle penetrates the outer wall of the nozzle and extends into the interior of the nozzle. The outer side of the locking buckle is movably connected to the interior of the nozzle. The connecting pipe has a hole inside, and the side of the locking buckle located inside the nozzle is adapted to the hole inside the connecting pipe.

[0011] Preferably, the inner bottom wall of the sleeve frame is fixedly connected to the bottom of the spring, the bottom of the bracket is located inside the sleeve frame, and four sleeve frames are provided, which are symmetrically distributed at the bottom of the UAV.

[0012] Preferably, four nozzle boxes are provided, and the four nozzle boxes are located at the bottom of the four propeller supports of the UAV.

[0013] Preferably, there are two baffles, which are symmetrically distributed inside the nozzle, and the diameter of the unblocking column is smaller than the bottom diameter of the nozzle.

[0014] Preferably, multiple nozzles are provided, and the multiple nozzles are located at the bottom of the nozzle box and are distributed in a circular pattern.

[0015] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0016] First, this utility model has a spray pipe installed at the bottom of the drone wing support, a nozzle box at the bottom of the spray pipe, a nozzle at the bottom of the nozzle box, and a clearing column inside the nozzle. The diameter of the clearing column is much smaller than the diameter of the nozzle. When the medicine is sprayed, the water pressure will push the clearing column to move out of the nozzle, which can clear some blockages inside the nozzle. Moreover, due to the difference in diameter, it will not affect the spraying of the medicine at all, thus preventing the nozzle from clogging.

[0017] Secondly, this utility model has a support frame at the bottom of the drone, and a sleeve frame is set on the outside of the support frame. The support frame is located at the bottom of the sleeve frame. Due to different environmental terrains, if the drone used for forestry lands on a slope, the drone body can remain at a certain level due to the support frame, the sleeve frame, and the spring inside the sleeve frame, thus preventing damage to the drone. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the sleeve support of this utility model;

[0020] Figure 3 This is a schematic diagram of the nozzle box structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the unblocking column structure of this utility model;

[0022] Figure 5 This is a top view of the nozzle structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the nozzle structure of this utility model;

[0024] Figure 7 This is a schematic diagram of the internal structure of the nozzle of this utility model.

[0025] The components include: 1. Drone; 2. Support frame; 3. Sleeve frame; 4. Nozzle; 401. Locking buckle; 402. Connecting pipe; 5. Nozzle box; 6. Nozzle; 601. Baffle; 701. T-shaped column; 702. Control pipe; 7. Unblocking column; 8. Signal box. Detailed Implementation

[0026] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0027] Example 1

[0028] Please see Figure 1 , Figure 2 A forestry operation drone that is resistant to interference in a complex electromagnetic environment includes a drone 1, a support 2 fixedly connected to the bottom of the drone 1, a spring fixedly connected to the bottom of the support 2, and a sleeve frame 3 movably connected to the outside of the support 2.

[0029] The drone 1 has a nozzle 4 at its bottom, a nozzle box 5 at its bottom, a nozzle 6 at its bottom, a clearing column 7 inside the nozzle 6, and a signal box 8 at its top. The bottom wall of the sleeve frame 3 is fixedly connected to the bottom of the spring. The bottom of the bracket 2 is located inside the sleeve frame 3. There are four sleeve frames 3, which are symmetrically distributed at the bottom of the drone 1.

[0030] Through the above technical solution, UAV 1 is a common forestry-use UAV. The internal signal transmission is based on existing technology. A support 2 is set at the bottom of UAV 1, and a sleeve frame 3 is set on the outside of the support 2. The support 2 is located at the bottom of the sleeve frame 3. Due to different environmental terrains, if the UAV lands on a slope, the support 2, the sleeve frame 3, and the springs inside the sleeve frame 3 can keep the UAV body at a certain level, preventing damage. The signal box on the top of UAV 1 is equipped with an anti-interference radio frequency microwave module. It adopts frequency hopping (FHSS) and spread spectrum technologies to dynamically switch channels in the 2.4GHz / 5.8GHz frequency band, reducing the impact of electromagnetic interference. It supports continuous retransmission and sequence number marking, ensuring the reliability of command transmission in high bit error rate environments. This technology is existing technology. When UAV 1 is subject to magnetic interference, the signal and the internal microwave module reduce interference, allowing UAV 1 to operate normally in this environment.

[0031] Example 2

[0032] Please see Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 Furthermore, based on Embodiment 1, the following is obtained: a baffle 601 is fixedly connected to the inner wall of the nozzle 6, a control tube 702 is provided at the top of the baffle 601, a T-shaped column 701 is provided on the outer side of the unblocking column 7, a second spring is provided inside the control tube 702, and the bottom of the T-shaped column 701 is fixedly connected to the top of the second spring.

[0033] The nozzle 4 is equipped with a locking buckle 401 inside, and the nozzle 4 is equipped with a connecting pipe 402;

[0034] The locking buckle 401 penetrates the outer wall of the nozzle 4 and extends into the interior of the nozzle 4. The outer side of the locking buckle 401 is movably connected to the interior of the nozzle 4. The connecting pipe 402 has a hole inside. The locking buckle 401 is located on one side inside the nozzle and is adapted to the hole inside the connecting pipe 402.

[0035] There are four nozzle boxes 5, which are located at the bottom of the four propeller supports of the UAV 1;

[0036] There are two baffles 601, which are symmetrically distributed inside the nozzle 6. The diameter of the unblocking column 7 is smaller than the bottom diameter of the nozzle 6.

[0037] There are multiple nozzles 6, which are located at the bottom of the nozzle box 5 and distributed in a circular pattern.

[0038] Through the above technical solution, a nozzle 4 is installed at the bottom of the wing support of the UAV 1, a nozzle box 5 is installed at the bottom of the nozzle 4, a nozzle 6 is installed at the bottom of the nozzle box 5, and a clearing column 7 is installed inside the nozzle 6. The diameter of the clearing column 7 is much smaller than the diameter of the nozzle 6. When the medicine is sprayed, the water pressure will push the clearing column 7 to move out of the nozzle, which can clear some blockages inside the nozzle. When no medicine is sprayed, the control pipe 702 is installed inside the nozzle 6, and the control pipe 702 is equipped with a second spring. The action of the second spring will drive the clearing column 7 back into the nozzle. Moreover, due to the difference in diameter, it will not affect the spraying of medicine at all, preventing the nozzle from clogging. The medicine is placed in a water tank between the bottom of the UAV 1 and the support 2, and is connected to each nozzle 4 through a water pipe located in the wing support.

[0039] In actual operation, when this device is in use, the pesticide is put into the water tank of the drone 1, and then the drone is started to spray the forest. The water pressure will drive the dredging column 7 to move outward towards the nozzle 6, while the pesticide is sprayed normally.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An anti-interference forestry operation unmanned aerial vehicle in a complex electromagnetic environment, comprising an unmanned aerial vehicle (1), characterized in that: The drone (1) has a bracket (2) fixedly connected to its bottom, a spring fixedly connected to its bottom, and a sleeve frame (3) movably connected to the outside of the bracket (2). The drone (1) is provided with a nozzle (4) at the bottom, a nozzle box (5) at the bottom of the nozzle (4), a nozzle (6) at the bottom of the nozzle box (5), a dredging column (7) inside the nozzle (6), and a signal box (8) at the top of the drone (1). A baffle (601) is fixedly connected to the inner wall of the nozzle (6). A control tube (702) is provided on the top of the baffle (601). A T-shaped column (701) is provided on the outside of the unblocking column (7). A second spring is provided inside the control tube (702). The bottom of the T-shaped column (701) is fixedly connected to the top of the second spring.

2. The anti-interference forestry operation unmanned plane in a complex electromagnetic environment according to claim 1, characterized in that: The nozzle (4) is provided with a locking buckle (401) inside, and the nozzle (4) is provided with a connecting pipe (402).

3. The anti-interference forestry operation unmanned plane in a complex electromagnetic environment according to claim 2, characterized in that: The locking buckle (401) penetrates the outer wall of the nozzle (4) and extends into the interior of the nozzle (4). The outer side of the locking buckle (401) is movably connected to the interior of the nozzle (4). The connecting pipe (402) has a hole inside. The locking buckle (401) is located on one side inside the nozzle and is adapted to the hole inside the connecting pipe (402).

4. The anti-interference forestry operation drone under complex electromagnetic environment according to claim 1, characterized in that: The inner bottom wall of the sleeve frame (3) is fixedly connected to the bottom of the spring. The bottom of the bracket (2) is located inside the sleeve frame (3). There are four sleeve frames (3), and the four sleeve frames (3) are symmetrically distributed at the bottom of the UAV (1).

5. The anti-interference forestry operation unmanned plane in a complex electromagnetic environment according to claim 1, characterized in that: There are four nozzle boxes (5), which are located at the bottom of the four propeller supports of the UAV (1).

6. The anti-interference forestry operation unmanned plane in a complex electromagnetic environment according to claim 1, characterized in that: Two baffles (601) are provided, and the two baffles (601) are symmetrically distributed inside the nozzle (6). The diameter of the unblocking column (7) is smaller than the bottom diameter of the nozzle (6).

7. The anti-interference forestry operation unmanned plane in a complex electromagnetic environment according to claim 1, characterized in that: Multiple nozzles (6) are provided, and the multiple nozzles (6) are located at the bottom of the nozzle box (5) in a circumferential distribution.