A forestry inspection drone

Abstract

This utility model discloses a forestry inspection drone in the field of drone inspection technology. It includes a fuselage, with landing gear rotatably mounted on both sides of the fuselage bottom. The landing gear has an inner mounting groove and a slide bar fixedly connected to its outer side. A middle frame is slidably connected to the slide bar. A primary screw and a long toothed column are rotatably mounted in the mounting groove. A movable plate is fixedly connected to the inner end of the middle frame, and the primary screw passes through the movable plate and is threadedly engaged with it. An inspection camera is mounted in the middle of the inspection frame. A secondary screw is rotatably mounted in the middle of the middle frame, passing through the inspection frame and being threadedly engaged with it. Synchronous gears are fixedly mounted on the inner ends of both the primary and secondary screws, and these synchronous gears mesh with the long toothed column. This utility model allows for adjustment of the inspection camera's distance from the ground or the distance to potential hazards during inspections, obtaining clearer and more accurate data, facilitating large-scale inspections, and maximizing the protection of the inspection camera lens.

Description

Technical Field

[0001] This utility model relates to the field of drone inspection technology, specifically a forestry inspection drone. Background Technology

[0002] Forestry patrol drones are unmanned aerial vehicle systems used for forestry patrol and monitoring. They can achieve comprehensive monitoring and patrol work on forest resources, fire risks, pest and disease conditions, forest land patrol and wildlife monitoring, which can improve the efficiency and accuracy of forestry patrols and reduce manpower and time costs.

[0003] Currently, most drones used for forestry patrols have their cameras fixed in a specific location, limiting the patrol range and preventing comprehensive inspections of various areas and altitudes, resulting in poor patrol effectiveness. Alternatively, cameras mounted on the side of the drone via a curved frame cause a shift in the drone's center of gravity, requiring precise control of the rotor speeds to maintain balance. Furthermore, the cameras cannot be retracted, severely restricting takeoff and landing and increasing the risk of camera damage.

[0004] Based on this, this utility model designs a forestry inspection drone to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a forestry inspection drone to solve the problems mentioned in the background art, such as that most inspection cameras are fixed in a specific position, which limits the inspection range, or that the camera causes the drone's center of gravity to shift, making it impossible to retract, severely restricting take-off and landing, and making it easy to bump into the camera.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a body, with landing gear rotatably mounted on both sides of the bottom of the body. The landing gear has an inner mounting groove and a slide bar fixedly connected to its outer side. A middle frame is slidably connected to the slide bar. A primary screw and a long toothed column are rotatably mounted in the mounting groove. A movable plate is fixedly connected to the inner end of the middle frame. The primary screw passes through the movable plate and is threadedly engaged with it. The long toothed column passes through a circular hole opened in the movable plate. An inspection frame is slidably connected inside the middle frame. An inspection camera is mounted in the middle of the inspection frame. A secondary screw is rotatably mounted in the middle of the middle frame. The secondary screw passes through the inspection frame and is threadedly engaged with it. Synchronous gears are fixedly mounted on the inner ends of both the primary and secondary screws, and both synchronous gears mesh with the long toothed column.

[0007] As a further embodiment of this utility model, an inspection motor is installed inside the landing gear, the primary screw is driven to rotate by the inspection motor, and the primary screw drives the secondary screw to rotate together through the meshing of the synchronous gear and the long tooth column.

[0008] As a further embodiment of this utility model, a mounting plate is fixedly connected to the bottom of the fuselage, the landing gear is mounted on the inner side of the mounting plate, and a landing motor is mounted on the inner side of the mounting plate. The landing motor is used to drive the rotation shaft of the landing gear to rotate.

[0009] As a further embodiment of this utility model, the landing gear is fixedly connected with a raised support foot, and the support height of the raised support foot is greater than the height of the inspection camera off the ground.

[0010] As a further embodiment of this invention, the inspection camera includes a thermal imaging camera and a panoramic camera.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The inspection camera is lowered by rotating the first-stage screw to slide the middle frame downwards. Then, the inspection frame is lowered by rotating the second-stage screw to lower the inspection camera. This allows the distance between the inspection camera and the ground or the distance to the hazard to be adjusted during inspection, so as to obtain clearer and more accurate data or a wider field of view, which is conducive to large-scale inspection.

[0013] 2. By mounting the inspection camera head on the intermediate frame via the landing gear and then mounting the inspection frame, the inspection camera lens faces to the side and is located under the fuselage when not in use. This maximizes the protection of the inspection camera lens during takeoff and landing, preventing collisions. At the same time, the center of gravity is concentrated in the middle of the drone's body. During the flight to the inspection site, both the inspection camera and the intermediate frame are in a retracted state, greatly reducing wind resistance, saving power, and the concentrated center of gravity also makes it easier to control. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the present invention from a side view.

[0015] Figure 2 This is a schematic diagram of the overall structure of the present invention from an upward angle;

[0016] Figure 3 This is a top-down view of the landing gear section of this utility model.

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram of section A;

[0018] Figure 5 This is a schematic diagram of the overall structure of the present invention from a frontal perspective;

[0019] Figure 6 This is a schematic diagram illustrating the usage process of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Airframe; 2. Landing gear; 3. Mounting slot; 4. Slide bar; 5. Intermediate frame; 6. Primary screw; 7. Long toothed column; 8. Moving plate; 9. Round hole; 10. Inspection frame; 11. Inspection camera; 12. Secondary screw; 13. Synchronous gear; 14. Mounting plate; 15. Landing motor; 16. Elevating feet. Detailed Implementation

[0022] Please see Figure 1-6 The technical solution provided by this utility model is as follows: It includes a body 1, and landing gear 2 is rotatably installed on both sides of the bottom of the body 1. The landing gear 2 has an installation groove 3 on its inner side and a slide bar 4 is fixedly connected to its outer side. A middle frame 5 is slidably connected to the slide bar 4. A primary screw 6 and a long toothed column 7 are rotatably installed in the installation groove 3. A movable plate 8 is fixedly connected to the inner end of the middle frame 5. The primary screw 6 passes through the movable plate 8 and is threadedly engaged with it. The long toothed column 7 passes through a round hole 9 opened on the movable plate 8. An inspection frame 10 is slidably connected in the middle frame 5. An inspection camera 11 is installed in the middle of the inspection frame 10. A secondary screw 12 is rotatably installed in the middle of the middle frame 5. The secondary screw 12 passes through the inspection frame 10 and is threadedly engaged with it. Synchronous gears 13 are fixedly installed at the inner ends of the primary screw 6 and the secondary screw 12. The synchronous gears 13 mesh with the long toothed column 7.

[0023] This device is slidably connected to the intermediate frame 5 via the landing gear 2, and the inspection camera 11 is mounted on the inspection frame 10. Before use, the landing gear 2 is in a horizontally retracted state. After takeoff, the landing gear 2 is rotated downwards to make the lens of the inspection camera 11 face downwards. Then, the rotation of the first-stage screw 6 causes the intermediate frame 5 to slide downwards, realizing the first-stage lowering of the inspection camera 11. The rotation of the second-stage screw 12 causes the inspection frame 10 to slide down, realizing the second-stage lowering of the inspection camera 11. Thus, during inspection, the distance between the inspection camera 11 and the ground or the distance to the hazard can be adjusted to obtain clearer and more accurate data, or to obtain a wider scene, which is conducive to conducting large-scale inspections.

[0024] Specifically, through the transmission between the synchronous gear 13 and the long toothed column 7, when the first-stage screw 6 rotates and pushes out the middle frame 5, it also drives the second-stage screw 12 to rotate and push the inspection frame 10 outward along the middle frame 5, thus realizing the lowering of the first and second stages, reducing waiting time and improving efficiency. During the movement, when the first-stage screw 6 rotates and pushes out the middle frame 5, it drives the long toothed column 7 to rotate through the synchronous gear 13. The moving plate 8 is sleeved on the outside of the long toothed column 7 and does not affect the rotation of the long toothed column 7 during the movement. The rotation of the long toothed column 7 drives the synchronous gear 13 of the second-stage screw 12 to rotate together. As the middle frame 5 and the second-stage screw 12 move down together, the second-stage screw 12 rotates and slides down along the tooth surface of the long toothed column 7. Thus, while the middle frame 5 and the second-stage screw 12 are moving, the synchronous transmission of the first-stage screw 6 and the second-stage screw 12 is still maintained, realizing the synchronous start and extension of the first and second stages. When the middle frame 5 slides down completely along the landing gear 2, the inspection frame 10 also moves down to the end position of the middle frame 5, so that the inspection camera 11 extends the longest distance to obtain a better inspection field of view.

[0025] By mounting the intermediate frame 5 on the landing gear 2 and then installing the inspection camera head 11 on the inspection frame 10, when not in use, the lens of the inspection camera 10 faces to the side and is located under the fuselage. During takeoff and landing, the lens of the inspection camera 10 is protected to the greatest extent to avoid collisions. At the same time, the center of gravity is concentrated in the middle of the drone body 1. During the flight to the inspection site, the inspection camera 10 and the intermediate frame 5 are in the retracted state, which greatly reduces wind resistance, saves power, and the concentrated center of gravity makes it easier to control.

[0026] The landing gear 2 is equipped with a monitoring motor. The primary screw 6 is driven to rotate by the monitoring motor. The primary screw 6 drives the secondary screw 12 to rotate together through the meshing of the synchronous gear 13 and the long toothed column 7. This allows the two screws to share a single motor, reducing costs, facilitating control, and enabling simultaneous start-up and lowering of the primary and secondary screws.

[0027] The landing gear 2 can be rotated by the landing motor 15. When the landing gear 2 is in a horizontal state, the body 1 can be supported by the raised support legs 16, which also lifts the inspection camera 11 off the ground, preventing the inspection camera 11 from being bumped. During inspection, the landing gear 2 is rotated to a vertical state by the landing motor 15, so that the lens of the inspection camera 11 faces downward for inspection. The drone's control system can also be used to retract the inspection frame 10 and the middle frame 5 together when the landing motor 15 is rotated to a horizontal state. When the landing gear 2 is rotated to a horizontal state, the inspection camera 11 is also completely retracted under the body 1, avoiding accidental operation. The camera is retracted before landing, which is safer and more reliable.

[0028] The landing gear 2 is fixedly connected to a raised support leg 16. The support height of the raised support leg 16 is greater than the ground height of the inspection camera 11. When the drone body 1 lands, the lens of the inspection camera 11 is far away from the ground, which also facilitates the landing and support of the drone body 1.

[0029] The inspection camera 11 includes a thermal imaging camera and a panoramic camera. The two cameras work together to achieve more accurate fire inspections and joint inspections of other situations. The thermal imaging camera is more accurate for fire inspections.

Claims

1. A forestry inspection drone, comprising a body (1), characterized in that: Landing gears (2) are rotatably mounted on both sides of the bottom of the fuselage (1). The landing gears (2) have mounting grooves (3) on their inner sides and slide bars (4) fixedly connected to their outer sides. A middle frame (5) is slidably connected to the slide bars (4). A primary screw (6) and a long toothed column (7) are rotatably mounted in the mounting grooves (3). A movable plate (8) is fixedly connected to the inner end of the middle frame (5). The primary screw (6) passes through the movable plate (8) and is threaded into it. The long toothed column (7) passes through the movable plate. (8) A circular hole (9) is opened on the middle frame (5). An inspection frame (10) is slidably connected inside the middle frame (5). An inspection camera (11) is installed in the middle of the inspection frame (10). A secondary screw (12) is rotatably installed in the middle of the middle frame (5). The secondary screw (12) passes through the inspection frame (10) and is threadedly engaged with it. Synchronous gears (13) are fixedly installed on the inner ends of the primary screw (6) and the secondary screw (12). The synchronous gears (13) mesh with the long tooth column (7).

2. The forestry inspection drone according to claim 1, characterized in that: The landing gear (2) is equipped with an inspection motor. The first-stage screw (6) is driven to rotate by the inspection motor. The first-stage screw (6) drives the second-stage screw (12) to rotate together through the meshing of the synchronous gear (13) and the long tooth column (7).

3. The forestry inspection drone according to claim 1, characterized in that: The bottom of the body (1) is fixedly connected to a mounting plate (14), the landing gear (2) is installed inside the mounting plate (14), and a landing motor (15) is installed inside the mounting plate (14). The landing motor (15) is used to drive the rotation shaft of the landing gear (2) to rotate.

4. A forestry inspection drone according to claim 3, characterized in that: The landing gear (2) is fixedly connected to each other by a raised support foot (16), and the raised support foot (16) supports a height greater than the ground height of the inspection camera (11).

5. A forestry inspection drone according to claim 1, characterized in that: The inspection camera (11) includes a thermal imaging camera and a panoramic camera.

Images