A type of highway inspection drone

By incorporating angle adjustment and retraction mechanisms, the problem of monitoring loopholes in narrow road sections by drones has been solved, enabling all-round inspection and stable landing, thus improving the applicability and safety of drones.

CN224427869UActive Publication Date: 2026-06-30SANMING YUANXI EXPRESSWAY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SANMING YUANXI EXPRESSWAY CO LTD
Filing Date
2025-09-05
Publication Date
2026-06-30

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    Figure CN224427869U_ABST
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Abstract

This utility model relates to the technical field of highway inspection devices, and discloses a highway inspection drone, including a fuselage, which serves as the main body of the drone and performs flight operations; a support frame, which provides support for the drone's landing; a camera, used for taking pictures during inspections; an angle adjustment mechanism, used to adjust the camera's shooting angle; and a retraction mechanism, used for retracting and extending the support frame. The angle adjustment mechanism includes a fixed plate and a ball bearing. A micro motor is fixedly connected to the bottom of the fixed plate, and the micro motor drives a rotating rod to rotate at the bottom of the fixed plate. In this utility model, the micro motor can drive the rotating rod to rotate, thereby controlling the longitudinal movement of the sliding column. The micro motor can also drive the rotating rod to rotate, thereby controlling the lateral movement of the sliding column. The combination of these two mechanisms allows the sliding column to move the camera at multiple angles, solving the problem of monitoring loopholes caused by road section limitations and improving the applicability of the drone.
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Description

Technical Field

[0001] This utility model relates to the field of highway inspection device technology, and in particular to a highway inspection drone. Background Technology

[0002] As highways continue to expand and extend, the difficulty of their inspection work is also increasing. Due to the increased highway mileage and the complexity of road conditions, relying solely on traditional manual inspection methods not only requires a large investment of human resources but also results in low inspection efficiency and an exceptionally heavy workload. To effectively address this challenge, drone inspection technology is being gradually introduced and is replacing traditional manual inspection methods. With its advantages of high efficiency, flexibility, and wide coverage, drones can significantly improve inspection efficiency, reduce the workload of manual inspections, and thus ensure the safe operation and smooth maintenance of highways.

[0003] However, in some sections of the road, the lateral space is only enough for drones to barely pass through, leaving insufficient room for them to turn around. In such cases, the camera at the front of the drone can only capture images of the front and side front, and cannot capture the structure behind or to the side of the drone, which can easily create monitoring loopholes and lead to inaccurate surveys. Utility Model Content

[0004] To address the above shortcomings, this utility model provides a highway inspection drone, which aims to improve the problem of monitoring loopholes caused by drones when existing road sections do not provide space for drones to turn around.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a highway inspection drone, comprising: a fuselage, serving as the main body of the drone and performing flight operations; a support frame, providing support for the drone's landing; a camera, used for taking pictures during inspections; an angle adjustment mechanism, used to adjust the camera's shooting angle; and a retraction mechanism, used for retracting and extending the support frame. The angle adjustment mechanism includes a fixed plate and a ball bearing. A micro motor is fixedly connected to the bottom of the fixed plate, driving a rotating rod to rotate at the bottom of the fixed plate. A second micro motor is also fixedly connected to the bottom of the fixed plate, driving the rotating rod to rotate at the bottom of the fixed plate. A limiting block is fixedly connected to the bottom of the fixed plate. A first sliding groove is formed inside the ball bearing, allowing the limiting block to slide within the first sliding groove. A second sliding groove is formed inside the ball bearing. A sliding column is fixedly connected to the top of one side of the camera, with a slider fixedly connected to the top of the sliding column. The slider can slide within the second sliding groove. The sliding column is slidably connected to both the first and second rotating rods.

[0006] Furthermore, a bracket is fixedly connected to the bottom of the body, which can be used to support the placement of the frame when it is folded up.

[0007] Furthermore, the retraction mechanism includes a micro motor three, which is used to drive the worm gear to rotate.

[0008] Furthermore, the worm gear is rotatably connected via a support block, which is installed at the bottom of the machine body.

[0009] Furthermore, a second support block is fixedly connected to the bottom of the fuselage, and a rotating shaft is rotatably connected inside the second support block.

[0010] Furthermore, a worm gear is fixedly connected to the outer wall of the rotating shaft.

[0011] Furthermore, the worm gear meshes with the worm.

[0012] Furthermore, the rotating shaft is fixedly connected to the top of the support frame.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the first rotating rod can be driven by the second micro motor to rotate, thereby controlling the longitudinal movement of the sliding column. The second rotating rod can also be driven by the first micro motor to control the lateral movement of the sliding column. The combination of the two can enable the sliding column to move the camera at multiple angles, solving the problem of monitoring loopholes caused by road restrictions on the drone and improving the applicability of the drone.

[0015] 2. In this utility model, a micro motor can drive a worm gear to control the rotation of the worm wheel. The worm wheel can then drive the support frame to rotate and open or retract, thereby supporting the drone as it falls, thus improving the convenience of drone take-off and landing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a highway inspection drone proposed in this utility model;

[0017] Figure 2 This is a schematic diagram of the fuselage structure of a highway inspection drone proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the fixing plate structure of a highway inspection drone proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the rotating rod structure of a highway inspection drone proposed in this utility model;

[0020] Figure 5 for Figure 2 Enlarged view of point A in the middle.

[0021] Legend:

[0022] 1. Body; 2. Support frame; 3. Camera; 4. Fixing plate; 5. Micro motor one; 6. Micro motor two; 7. Limiting block; 8. Slide groove one; 9. Slide groove two; 10. Rotating rod one; 11. Rotating rod two; 12. Ball; 13. Slider; 14. Sliding column; 15. Bracket; 16. Support block one; 17. Worm gear; 18. Support block two; 19. Worm wheel; 20. Rotating shaft; 21. Micro motor three. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Reference Figure 1-4 This utility model provides an embodiment of a highway inspection drone, comprising: a fuselage 1, serving as the main body of the drone and performing flight operations; a support frame 2, providing support for the drone's landing; a camera 3, used for taking pictures during inspections; an angle adjustment mechanism for adjusting the shooting angle of the camera 3; and a retraction mechanism for retracting and extending the support frame 2. The angle adjustment mechanism includes a fixed plate 4 and a ball bearing 12. A micro motor 5 is fixedly connected to the bottom of the fixed plate 4, and the micro motor 5 can drive a rotating rod 11 to rotate at the bottom of the fixed plate 4. A micro motor 2 6 is also fixedly connected to the bottom of the fixed plate 4. The micro motor 2 6 can drive the rotating rod 1 10 to rotate at the bottom of the fixed plate 4. A limit block 7 is fixedly connected to the bottom of the fixed plate 4. A sliding groove 1 8 is opened inside the ball 12. The limit block 7 can slide inside the sliding groove 1 8. A sliding groove 2 9 is opened inside the ball 12. A sliding column 14 is fixedly connected to the top of one side of the camera 3. A slider 13 is fixedly connected to the top of the sliding column 14. The slider 13 can slide inside the sliding groove 2 9. The sliding column 14 is slidably connected to the rotating rod 1 10 and the rotating rod 2 11.

[0025] Specifically, during the inspection mission performed by the UAV, the second micro motor 6 can start and drive the rotating rod 10 to rotate. As the rotating rod 10 rotates, it applies force to push the sliding column 14, which in turn causes the sliding column 14 to move the slider 13 connected to it. It is worth noting that the width of the slider 13 is slightly larger than the width of the groove 8. Therefore, due to this size difference, the slider 13 needs to use the rolling mechanism of the ball 12 to achieve its smooth longitudinal movement within the groove 8. In addition, the first micro motor 5 can also play a role. It drives the rotating rod 11 to rotate, and the rotation of the rotating rod 11 also transmits force through the sliding column 14, causing the slider 13 to move. In this scenario, because the width of the limiting block 7 is designed to be slightly wider than the second slide groove 9, the rolling ball 12 is effectively restricted by the limiting block 7 and cannot roll. Therefore, in this case, the slider 13 will slide directly inside the second slide groove 9, thereby realizing the movement of the slider 13 in the lateral direction. By combining the movement mechanisms in these two directions, namely the synergistic effect of longitudinal and lateral movement, the sliding column 14 can effectively drive the camera 3 connected to it to make multi-angle and all-round adjustments and movements. In this way, the camera 3 can perform comprehensive monitoring of the bottom of the drone without blind spots, ensuring the accuracy and comprehensiveness of the inspection operation, and providing strong visual support for the safe flight and efficient operation of the drone.

[0026] Reference Figure 2 and Figure 5 A bracket 15 is fixedly connected to the bottom of the body 1, which can be used for placing the support frame 2 when it is retracted. The retraction mechanism includes a micro motor 21, which drives the worm 17 to rotate. The worm 17 is rotatably connected through a support block 16. The support block 16 is installed at the bottom of the body 1. A support block 28 is fixedly connected to the bottom of the body 1. A rotating shaft 20 is rotatably connected inside the support block 28. A worm wheel 19 is fixedly connected to the outer wall of the rotating shaft 20. The worm wheel 19 meshes with the worm 17. The rotating shaft 20 is fixedly connected to the top of the support frame 2.

[0027] Specifically, during the landing of the drone, the worm gear 17 can be rotated by the driving action of the micro motor 21. Subsequently, the rotation of the worm gear 17 will further drive the worm wheel 19 connected to it to rotate synchronously. Since the worm wheel 19 is closely connected to the rotating shaft 20 whose axis is fixed, the rotation of the worm wheel 19 will be directly transmitted to the rotating shaft 20, causing it to rotate accordingly. With the help of this rotation action of the rotating shaft 20, the connection control of the support frame 2 can be realized, so that it rotates from its original position to a state perpendicular to the fuselage 1. In this way, the support frame 2 can effectively provide the necessary support for the smooth landing of the drone, ensuring that the drone remains stable and safe during the landing process.

[0028] Working principle: When the drone is performing inspection operations, the micro motor 6 drives the rotating rod 10 to rotate. The rotating rod 10 pushes the sliding column 14, which in turn drives the slider 13 to move. Since the slider 13 is slightly wider than the sliding groove 8, the slider 13 moves longitudinally by rolling with the help of the ball 12. At the same time, the micro motor 5 drives the rotating rod 11 to rotate, which also drives the slider 13 to move through the sliding column 14. Since the limiting block 7 is slightly wider than the sliding groove 9, the ball 12 is restricted by the limiting block 7 and cannot roll. The slider 13 will slide directly inside the slide groove 9 to achieve lateral movement. The movements in the two directions can be combined, thereby driving the camera 3 to move at multiple angles through the slide column 14, so that the camera 3 can monitor the bottom of the drone from all directions. When the drone lands, the micro motor 21 can drive the worm 17 to rotate, and the worm 17 can drive the worm wheel 19 to rotate. The worm wheel 19 will drive the rotating shaft 20 with its axis fixed to rotate. Then, with the help of the rotating shaft 20, the support frame 2 is controlled to rotate to be perpendicular to the fuselage 1, thereby providing support for the landing of the drone.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A highway inspection drone, characterized in that, include: The fuselage (1) serves as the main body of the UAV and performs flight operations; The support frame (2) can provide support for the landing of the drone; Camera (3) is used for taking pictures during inspections; An angle adjustment mechanism is used to adjust the shooting angle of the camera (3); A retraction mechanism for retracting and extending the support frame (2); The angle adjustment mechanism includes a fixed plate (4) and a ball (12). A micro motor (5) is fixedly connected to the bottom of the fixed plate (4). The micro motor (5) can drive the rotating rod (11) to rotate at the bottom of the fixed plate (4). A micro motor (6) is also fixedly connected to the bottom of the fixed plate (4). The micro motor (6) can drive the rotating rod (10) to rotate at the bottom of the fixed plate (4). A limit block (7) is fixedly connected to the bottom of the fixed plate (4). A groove (8) is opened inside the ball (12). The limit block (7) can slide inside the groove (8). A groove (9) is opened inside the ball (12). A sliding column (14) is fixedly connected to the top of one side of the camera (3). A slider (13) is fixedly connected to the top of the sliding column (14). The slider (13) can slide inside the groove (9). The sliding column (14) is slidably connected to the rotating rod (10) and the rotating rod (11).

2. The highway inspection drone according to claim 1, characterized in that: The bottom of the body (1) is fixedly connected to a bracket (15), which can be used to support the placement of the frame (2) when it is folded up.

3. The highway inspection drone according to claim 1, characterized in that: The retraction mechanism includes a micro motor three (21), which is used to drive the worm gear (17) to rotate.

4. A highway inspection drone according to claim 3, characterized in that: The worm gear (17) is rotatably connected by a support block (16), which is installed at the bottom of the body (1).

5. A highway inspection drone according to claim 4, characterized in that: The bottom of the fuselage (1) is fixedly connected to a support block two (18), and a rotating shaft (20) is rotatably connected inside the support block two (18).

6. A highway inspection drone according to claim 5, characterized in that: A worm gear (19) is fixedly connected to the outer wall of the rotating shaft (20).

7. A highway inspection drone according to claim 6, characterized in that: The worm gear (19) meshes with the worm (17).

8. A highway inspection drone according to claim 7, characterized in that: The rotating shaft (20) is fixedly connected to the top of the support frame (2).