Road disease investigation unmanned aerial vehicle with protection device

Abstract

The utility model relates to the technical field of unmanned aerial vehicles, discloses an unmanned aerial vehicle with a protection device for highway disease investigation, and aims to provide good protection for the unmanned aerial vehicle for investigation and prevent the unmanned aerial vehicle from being damaged in the working process. A propeller self-detection protection mechanism is arranged on the surface of the body, a bottom detection assembly mounting mechanism is arranged at the bottom of the body, and the propeller self-detection protection mechanism monitors the flight environment through visual, infrared and ultrasonic sensors. A bottom detection assembly mounting mechanism can be remotely controlled, all-directional detection is achieved, the angle of the detection device is adjusted, in addition, a storage battery box and a solar panel are arranged at the top of the unmanned aerial vehicle, a bottom transparent protective cover is made of special materials and a treatment process, normal work of the detection device is guaranteed, and the practicability of the unmanned aerial vehicle in highway disease investigation is improved.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, specifically to a UAV with protective devices for surveying road defects. Background Technology

[0002] With the rapid development of highway construction and the continuous increase in highway mileage, the timely detection and treatment of highway defects have become crucial to ensuring the safe operation of highways. Traditional manual methods of highway defect investigation suffer from problems such as low efficiency, high risk, and great environmental limitations. Drones, with their advantages of flexibility, efficiency, and low cost, have gradually become an important tool for highway defect investigation. However, the highway environment is complex and changeable, and drones may face risks such as collisions with obstacles and severe weather during flight. Therefore, designing a drone with protective devices for highway defect investigation is of great practical significance.

[0003] The existing protective devices on drones are mostly limited in their protective effect. During use, they may affect the drone's propellers, which can affect the drone's normal flight. Furthermore, their protective effect is poor, they cannot respond to dangers in advance, and the coordination between various components is inadequate. Utility Model Content

[0004] The purpose of this invention is to provide a drone with protective devices for surveying highway defects, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a drone for surveying highway defects with protective devices, comprising a drone body, drone arms fixedly connected to the four corners of the drone body, a propeller mount installed at the top outer end of the drone arms, a propeller self-detection protection mechanism provided on the surface of the propeller mount, and a bottom detection component installation mechanism provided at the bottom of the drone body.

[0006] The propeller self-detection and protection mechanism includes a main mounting arc plate, which is mounted on the outer surface of the propeller mount. A first connecting arm is fixedly connected to the outer end of the main mounting arc plate. An auxiliary mounting column is mounted on the outer bottom of the propeller mount. A fixing ring is fixedly connected to the bottom surface of the auxiliary mounting column. A second connecting arm is fixedly connected to the outer surface of the fixing ring. Elastic alloy anti-collision frames are mounted on the outer ends of the first and second connecting arms. Reinforced protective pads are mounted on the outer ends of the elastic alloy anti-collision frames. Visual sensors, infrared sensors, and ultrasonic sensors are mounted on the outer surface of the elastic alloy anti-collision frames. First high-strength lightweight carbon fiber protective plates are mounted on the top and bottom of the elastic alloy anti-collision frames. A first micro electric push rod is installed inside the first high-strength lightweight carbon fiber protective plate. A second high-strength lightweight carbon fiber protective plate is mounted on the top of the first micro electric push rod. A second micro electric push rod is installed inside the second high-strength lightweight carbon fiber protective plate. A third high-strength lightweight carbon fiber protective plate is installed on top. During the use of the drone, visual sensors, infrared sensors, and ultrasonic sensors monitor the flight environment. The infrared and ultrasonic sensors can monitor the distance between the drone and surrounding obstacles in real time. When the distance to an obstacle is less than a preset safety threshold, a signal is immediately sent to the drone control system. The visual sensor uses image recognition technology to determine whether there are objects in front that may cause a collision. Once a dangerous scene is identified, a signal is also transmitted to the control system. After receiving the sensor signals, the control system analyzes and determines that there is a collision risk. It then issues a command to start the protective bracket deployment procedure. At this time, the first and second micro electric push rods immediately start working, pushing the second and third high-strength lightweight carbon fiber protective plates out from inside the first high-strength lightweight carbon fiber protective plate to protect the propeller mount and propeller, reducing the damage to the internal equipment of the fuselage from collisions. This effectively prevents the propeller from directly colliding with obstacles and protects the propeller from damage.

[0007] Preferably, the elastic alloy anti-collision frame is designed as a detachable structure, and the visual sensor, infrared sensor and ultrasonic sensor are all installed in the middle section of the outer surface of the elastic alloy anti-collision frame and are arranged in a straight line.

[0008] Preferably, the second high-strength lightweight carbon fiber protective plate is housed inside the first high-strength lightweight carbon fiber protective plate, and the third high-strength lightweight carbon fiber protective plate is housed inside the second high-strength lightweight carbon fiber protective plate.

[0009] Preferably, the bottom detection component mounting mechanism includes a base, which is mounted at the center of the bottom of the UAV body. A main mounting base is fixedly connected to the bottom of the base. A first rotating shaft is rotatably connected to the center of the main mounting base. A first transmission gear is fixedly connected to the surface of the first rotating shaft. A first servo motor is mounted on the right side of the bottom of the main mounting base. A second rotating shaft is provided on the top of the first servo motor. A second transmission gear is fixedly connected to the surface of the second rotating shaft. A connecting plate is fixedly connected to the bottom of the first rotating shaft. A bottom transparent protective cover is mounted on the bottom of the connecting plate. A groove is formed at the center of the bottom of the connecting plate. A partition is fixedly connected to the center of the groove. Electric telescopic rods are mounted on both ends of the partition. A connecting slider is mounted on the outer end of the electric telescopic rod. A fixing plate is fixedly connected to the bottom of the connecting slider. A third rotating shaft is rotatably connected to the inner end of the fixing plate. A third rotating shaft is rotatably connected to the inner end of the fixing plate. The fourth rotating shaft has a second servo motor mounted on the right end of the fixed plate. Clamping plates are fixedly connected to the inner ends of both the third and fourth rotating shafts. Spring pillars are fixedly connected to the outer surfaces of the clamping plates, and auxiliary clamping plates are fixedly connected to the surfaces of the spring pillars. During the operation of the drone, operators can remotely control the bottom detection component mounting mechanism as needed, controlling the first servo motor to rotate the second rotating shaft and the second transmission gear. This synchronously drives the first rotating shaft and the first transmission gear to rotate, causing the bottom connecting plate and bottom components to rotate, thereby achieving omnidirectional detection. Simultaneously, the second servo motor can drive the second rotating shaft and the drone body to rotate, causing the detection device mounted inside the clamping plate to change its angle, thus adapting to different detection needs. This mechanism enhances the drone's detection efficiency and increases the detection coverage.

[0010] Preferably, the first transmission gear and the second transmission gear mesh with each other, the second rotating shaft is fixedly connected to the top output end of the first servo motor, the third rotating shaft is fixedly connected to the left output end of the second servo motor, the fourth rotating shaft is located at the bottom left end of the connecting plate, and the connecting slider is slidably connected inside the groove.

[0011] Preferably, a propeller is mounted on the top of the propeller mount, a battery box is mounted on the top of the drone body, and a solar panel is mounted on the top of the battery box.

[0012] Compared with the prior art, this utility model provides a drone with protective devices for surveying highway defects, which has the following beneficial effects:

[0013] This UAV for surveying road defects is equipped with a propeller self-detection and protection mechanism. During the operation of the UAV, visual sensors, infrared sensors, and ultrasonic sensors monitor the flight environment. The infrared and ultrasonic sensors can monitor the distance between the UAV and surrounding obstacles in real time. When the distance to an obstacle is less than a preset safety threshold, a signal is immediately sent to the UAV control system. The visual sensors use image recognition technology to determine whether there are objects that may cause a collision ahead. Once a dangerous scene is identified, a signal is also transmitted to the control system. After receiving the sensor signals, the control system analyzes and determines that there is a collision risk. It then issues a command to initiate the protective bracket deployment procedure. At this time, the first and second micro electric push rods immediately start working, pushing the second and third high-strength lightweight carbon fiber protective plates out from inside the first high-strength lightweight carbon fiber protective plate to protect the propeller mount and propeller, reducing the damage to the internal equipment of the fuselage from collisions. This effectively prevents the propeller from directly colliding with obstacles and protects the propeller from damage.

[0014] This UAV for surveying highway defects, equipped with protective devices, features a bottom detection component mounting mechanism. During operation, staff can remotely control this mechanism as needed, controlling the first servo motor to rotate the second shaft and second transmission gear. This rotation, in turn, rotates the first shaft and first transmission gear, causing the bottom connecting plate and bottom components to rotate, enabling comprehensive detection. Simultaneously, the second servo motor can drive the second shaft and the UAV body to rotate, causing the detection device mounted inside the clamping plate to change angles to adapt to different detection requirements. This mechanism enhances the UAV's detection efficiency and increases its coverage. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the main body of the UAV structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the propeller self-detection and protection mechanism of this utility model.

[0019] Figure 4 This is a schematic diagram of the inner end of the propeller self-detection and protection mechanism of this utility model.

[0020] Figure 5 This is a schematic diagram of the structurally reinforced protective pad of this utility model;

[0021] Figure 6 This is a schematic diagram showing the separation of the bottom detection component installation mechanism of this utility model.

[0022] Figure 7 This is a schematic diagram of the installation mechanism for the bottom detection component of the present invention.

[0023] In the diagram: 1. UAV body; 2. UAV cantilever; 3. Propeller mount; 4. Propeller; 5. Battery box; 6. Solar panel; 7. Propeller self-detection and protection mechanism; 71. Main mounting arc plate; 72. First connecting arm; 73. Auxiliary mounting column; 74. Fixing ring; 75. Second connecting arm; 76. Elastic alloy anti-collision frame; 77. Reinforced protective pad; 78. Visual sensor; 781. Infrared sensor; 782. Ultrasonic sensor; 79. First high-strength lightweight carbon fiber protective plate; 701. First miniature electric actuator; 702. Second high-strength lightweight carbon fiber protective plate; 703. Second miniature... Electric push rod; 704, third high-strength lightweight carbon fiber protective plate; 8, bottom detection component mounting mechanism; 81, base; 82, main mounting base; 83, first rotating shaft; 84, first transmission gear; 85, first servo motor; 86, second rotating shaft; 87, second transmission gear; 88, connecting plate; 89, bottom transparent protective cover; 801, slide groove; 802, partition block; 803, electric telescopic rod; 804, connecting slider; 805, fixing plate; 806, third rotating shaft; 8061, fourth rotating shaft; 807, second servo motor; 808, clamping plate; 809, spring column; 8091, auxiliary clamping plate. Detailed Implementation

[0024] 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.

[0025] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] This utility model provides the following technical solution:

[0027] Example 1

[0028] Please see Figure 1-7 A highway defect survey drone with protective devices includes a drone body 1, drone arms 2 fixedly connected to the four corners of the drone body 1, a propeller mount 3 installed at the top outer end of the drone arms 2, a propeller self-detection protection mechanism 7 provided on the surface of the propeller mount 3, and a bottom detection component installation mechanism 8 provided at the bottom of the drone body 1.

[0029] The propeller self-detection protection mechanism 7 includes a main mounting arc plate 71, which is mounted on the outer surface of the propeller mount 3. A first connecting arm 72 is fixedly connected to the outer end of the main mounting arc plate 71. An auxiliary mounting column 73 is mounted on the outer bottom of the propeller mount 3. A fixing ring 74 is fixedly connected to the bottom surface of the auxiliary mounting column 73. A second connecting arm 75 is fixedly connected to the outer surface of the fixing ring 74. An elastic alloy anti-collision frame 76 is mounted on the outer end of the first connecting arm 72 and the second connecting arm 75. A reinforced protective pad 77 is mounted on the outer end of the elastic alloy anti-collision frame 76. A vision sensor 78 and an infrared sensor 78 are mounted on the outer end surface of the elastic alloy anti-collision frame 76. 1. An ultrasonic sensor 782 is installed on the outer surface of the elastic alloy anti-collision frame 76. A first high-strength lightweight carbon fiber protective plate 79 is installed on both the top and bottom of the elastic alloy anti-collision frame 76. A first micro electric push rod 701 is installed inside the first high-strength lightweight carbon fiber protective plate 79. A second high-strength lightweight carbon fiber protective plate 702 is installed on top of the first micro electric push rod 701. A second micro electric push rod 703 is installed inside the second high-strength lightweight carbon fiber protective plate 702. A third high-strength lightweight carbon fiber protective plate 704 is installed on top of the second micro electric push rod 703. During the use of the drone, the visual sensor 78, infrared sensor 781, and ultrasonic sensor 782... The acoustic sensor 782 monitors the flight environment during flight. The infrared sensor 781 and ultrasonic sensor 782 monitor the distance between the drone and surrounding obstacles in real time. When the distance to an obstacle is less than a preset safety threshold, a signal is immediately sent to the drone control system. The visual sensor 78 uses image recognition technology to determine whether there are objects that may cause a collision ahead. Once a dangerous scene is identified, a signal is also transmitted to the control system. After receiving the sensor signals, the control system analyzes and determines whether a collision risk exists. It then issues a command to initiate the deployment of the protective support. At this time, the first micro electric push rod 701 and the second micro electric push rod 703 are erected. The system begins operation by pushing the second high-strength lightweight carbon fiber protective plate 702 and the third high-strength lightweight carbon fiber protective plate 704 out from inside the first high-strength lightweight carbon fiber protective plate 79 to protect the propeller mount 3 and the propeller 4, reducing damage to the internal equipment of the fuselage from collisions. It can effectively prevent the propeller from directly colliding with obstacles and protect the propeller from damage. The infrared sensor 781 is GP2Y0A21YK0F, the vision sensor 78 is OV7670, the ultrasonic sensor 782 is HC-SR04, and the first micro electric actuator 701 and the second micro electric actuator 703 are of the model SKA-M.

[0030] The elastic alloy anti-collision frame 76 is designed as a detachable structure. The visual sensor 78, infrared sensor 781 and ultrasonic sensor 782 are all installed in the middle section of the outer surface of the elastic alloy anti-collision frame 76 and are distributed in a straight line.

[0031] The second high-strength lightweight carbon fiber protective plate 702 is housed inside the first high-strength lightweight carbon fiber protective plate 79, and the third high-strength lightweight carbon fiber protective plate 704 is housed inside the second high-strength lightweight carbon fiber protective plate 702.

[0032] Example 2

[0033] Please see Figure 1-7 Furthermore, based on Embodiment 1, the bottom detection component mounting mechanism 8 includes a base 81, which is mounted at the center of the bottom of the UAV body 1. A main mounting base 82 is fixedly connected to the bottom of the base 81. A first rotating shaft 83 is rotatably connected to the center of the main mounting base 82. A first transmission gear 84 is fixedly connected to the surface of the first rotating shaft 83. A first servo motor 85 is mounted on the right side of the bottom of the main mounting base 82. A second rotating shaft 86 is provided on the top of the first servo motor 85. A second transmission gear 84 is fixedly connected to the surface of the second rotating shaft 86. A transmission gear 87 is connected to a connecting plate 88 at the bottom of the first rotating shaft 83. A transparent protective cover 89 is installed at the bottom of the connecting plate 88. A groove 801 is formed at the center of the bottom of the connecting plate 88. A partition block 802 is fixedly connected to the center of the groove 801. Electric telescopic rods 803 are installed at the left and right ends of the partition block 802. A connecting slider 804 is installed at the outer end of the electric telescopic rod 803. A fixing plate 805 is fixedly connected to the bottom of the connecting slider 804. A third rotating shaft 806 is rotatably connected to the inner end of the fixing plate 805. A fourth rotating shaft 8061 is rotatably connected. A second servo motor 807 is installed on the right end of the fixed plate 805. Clamping plates 808 are fixedly connected to the inner ends of the third rotating shaft 806 and the fourth rotating shaft 8061. A spring column 809 is fixedly connected to the outer surface of the clamping plate 808. An auxiliary clamping plate 8091 is fixedly connected to the surface of the spring column 809. During the operation of the UAV, the operator can remotely control the bottom detection component installation mechanism 8 as needed, control the first servo motor 85 to work, drive the second rotating shaft 86 and the second transmission gear 87 to rotate, synchronously drive the first rotating shaft 83 and the first transmission gear 84 to rotate, drive the bottom connecting plate 88 and the bottom components to rotate, thereby achieving all-round detection. At the same time, the second servo motor 807 can drive the second rotating shaft 86 and the UAV body 1 to rotate, drive the detection device installed inside the clamping plate 808 to change the angle, thereby adapting to different detection needs. The setting of this mechanism enhances the detection efficiency of the UAV and improves the detection coverage. The electric telescopic pole 803 uses the model SKA-F mini electric telescopic pole.

[0034] The first transmission gear 84 and the second transmission gear 87 mesh with each other, the second rotating shaft 86 is fixedly connected to the top output end of the first servo motor 85, the third rotating shaft 806 is fixedly connected to the left output end of the second servo motor 807, the fourth rotating shaft 8061 is set at the bottom left end of the connecting plate 88, and the connecting slider 804 is slidably connected to the inside of the slide groove 801.

[0035] A propeller 4 is mounted on top of the propeller mount 3, a battery box 5 is mounted on top of the drone body 1, and a solar panel 6 is mounted on top of the battery box 5.

[0036] In actual operation, when this device is used, during the drone's flight, the visual sensor 78, infrared sensor 781, and ultrasonic sensor 782 monitor the flight environment. The infrared sensor 781 and ultrasonic sensor 782 can monitor the distance between the drone and surrounding obstacles in real time. When an obstacle is detected to be less than a preset safety threshold, a signal is immediately sent to the drone's control system. The visual sensor 78 uses image recognition technology to determine if there are any objects ahead that could cause a collision. Once a dangerous scenario is identified, it also transmits a signal to the control system. The control system receives the sensor signals... After analysis and judgment, it was confirmed that there was a collision risk. Then, an instruction was issued to start the protective bracket deployment procedure. At this time, the first micro electric push rod 701 and the second micro electric push rod 703 immediately started to work, pushing the second high-strength lightweight carbon fiber protective plate 702 and the third high-strength lightweight carbon fiber protective plate 704 out from inside the first high-strength lightweight carbon fiber protective plate 79 to provide protection for the propeller seat 3 and the propeller 4, reduce the damage to the internal equipment of the fuselage caused by the collision, and effectively prevent the propeller from directly colliding with obstacles, protecting the propeller from damage. At the same time, the mechanism is at a certain distance from the propeller 4 and will not affect the operation of the propeller 4.

[0037] During the operation of the drone, staff can remotely control the bottom detection component mounting mechanism 8 as needed. This controls the first servo motor 85 to rotate the second rotating shaft 86 and the second transmission gear 87, which in turn rotate the first rotating shaft 83 and the first transmission gear 84, causing the bottom connecting plate 88 and the bottom components to rotate, thus achieving all-around detection. At the same time, the second servo motor 807 can drive the second rotating shaft 86 and the drone body 1 to rotate, causing the detection device installed inside the clamping plate 808 to change its angle, thereby adapting to different detection needs. This mechanism enhances the detection efficiency of the drone and improves the detection coverage.

[0038] The detection device is fixed to the bottom of the connecting plate 88 by clamping plate 808, spring column 809 and auxiliary clamping plate 8091. The distance between the two sets of clamping plates 808 can be changed by electric telescopic rod 803, which can ensure that it can adapt to a variety of different detection devices.

[0039] During use, the bottom transparent protective cover 89 ensures that the internal detection device is not damaged. The bottom transparent protective cover 89 is made of transparent, high-strength polycarbonate material. Polycarbonate has excellent optical properties, mechanical properties, and weather resistance. Its transparency ensures that the camera and sensor are not obstructed and can normally acquire images and data. Its high strength allows it to resist impacts and scratches from external objects, providing physical protection for critical components. The surface of the bottom transparent protective cover 89 undergoes special treatment, possessing functions such as scratch resistance, wear resistance, and anti-fogging. The scratch resistance and wear resistance treatment involves coating the protective cover surface with a wear-resistant coating to increase surface hardness, reduce scratch damage from external objects, and extend the service life of the protective cover. The anti-fogging treatment utilizes nanotechnology to form a hydrophilic coating on the protective cover surface. When encountering environments with large temperature differences, water vapor spreads evenly on the coating surface, forming a transparent water film, preventing water vapor condensation and ensuring that the camera and sensor always maintain a clear field of view, allowing them to work normally in humid and foggy environments.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A drone with protective devices for surveying highway defects, comprising the drone body (1), characterized in that: The drone body (1) is fixedly connected to the four corners of the drone arm (2), the top outer end of the drone arm (2) is equipped with a propeller seat (3), the surface of the propeller seat (3) is provided with a propeller self-detection protection mechanism (7), and the bottom of the drone body (1) is provided with a bottom detection component installation mechanism (8). The propeller self-detection protection mechanism (7) includes a main mounting arc plate (71), which is mounted on the outer surface of the propeller seat (3). A first connecting arm (72) is fixedly connected to the outer end of the main mounting arc plate (71). An auxiliary mounting column (73) is mounted on the outer bottom of the propeller seat (3). A fixing ring (74) is fixedly connected to the bottom surface of the auxiliary mounting column (73). A second connecting arm (75) is fixedly connected to the outer surface of the fixing ring (74). An elastic alloy anti-collision frame (76) is mounted on the outer end of the first connecting arm (72) and the second connecting arm (75). A reinforced protective pad (77) is mounted on the outer end of the elastic alloy anti-collision frame (76). A vision sensor (78) is mounted on the outer surface of the elastic alloy anti-collision frame (76). An infrared sensor (781) is installed on the outer surface of the elastic alloy anti-collision frame (76), and an ultrasonic sensor (782) is installed on the outer surface of the elastic alloy anti-collision frame (76). A first high-strength lightweight carbon fiber protective plate (79) is installed on the top and bottom of the elastic alloy anti-collision frame (76). A first micro electric push rod (701) is installed inside the first high-strength lightweight carbon fiber protective plate (79). A second high-strength lightweight carbon fiber protective plate (702) is installed on the top of the first micro electric push rod (701). A second micro electric push rod (703) is installed inside the second high-strength lightweight carbon fiber protective plate (702). A third high-strength lightweight carbon fiber protective plate (704) is installed on the top of the second micro electric push rod (703).

2. The UAV with protective device for surveying highway defects according to claim 1, characterized in that: The elastic alloy anti-collision frame (76) is designed as a detachable structure. The visual sensor (78), infrared sensor (781) and ultrasonic sensor (782) are all installed on the middle section of the outer surface of the elastic alloy anti-collision frame (76) and are distributed in a straight line.

3. The UAV for surveying highway defects with a protective device according to claim 1, characterized in that: The second high-strength lightweight carbon fiber protective plate (702) is housed inside the first high-strength lightweight carbon fiber protective plate (79), and the third high-strength lightweight carbon fiber protective plate (704) is housed inside the second high-strength lightweight carbon fiber protective plate (702).

4. The UAV for surveying highway defects with a protective device according to claim 1, characterized in that: The bottom detection component mounting mechanism (8) includes a base (81), which is mounted on the bottom center of the UAV body (1). A main mounting base (82) is fixedly connected to the bottom of the base (81). A first rotating shaft (83) is rotatably connected to the center of the main mounting base (82). A first transmission gear (84) is fixedly connected to the surface of the first rotating shaft (83). A first servo motor (85) is mounted on the right side of the bottom of the main mounting base (82). A second rotating shaft (86) is provided on the top of the first servo motor (85). A second transmission gear (87) is fixedly connected to the surface of the second rotating shaft (86). A connecting plate (88) is fixedly connected to the bottom of the first rotating shaft (83). A bottom transparent protective cover (89) is installed on the bottom of the connecting plate (88). A groove (89) is opened at the center of the bottom of the connecting plate (88). 01), a partition block (802) is fixedly connected to the center of the slide (801). Electric telescopic rods (803) are installed at the left and right ends of the partition block (802). A connecting slider (804) is installed at the outer end of the electric telescopic rod (803). A fixing plate (805) is fixedly connected to the bottom end of the connecting slider (804). A third rotating shaft (806) is rotatably connected to the inner end of the fixing plate (805). A fourth rotating shaft (8061) is rotatably connected to the inner end of the fixing plate (805). A second servo motor (807) is installed at the right end of the fixing plate (805). A clamping plate (808) is fixedly connected to the inner ends of both the third rotating shaft (806) and the fourth rotating shaft (8061). A spring column (809) is fixedly connected to the outer surface of the clamping plate (808). An auxiliary clamping plate (8091) is fixedly connected to the surface of the spring column (809).

5. A UAV with a protective device for surveying highway defects according to claim 4, characterized in that: The first transmission gear (84) and the second transmission gear (87) mesh with each other. The second rotating shaft (86) is fixedly connected to the top output end of the first servo motor (85). The third rotating shaft (806) is fixedly connected to the left output end of the second servo motor (807). The fourth rotating shaft (8061) is located at the bottom left end of the connecting plate (88). The connecting slider (804) is slidably connected inside the slide groove (801).

6. The UAV with protective device for surveying highway defects according to claim 1, characterized in that: A propeller (4) is mounted on the top of the propeller mount (3), a battery box (5) is mounted on the top of the UAV body (1), and a solar panel (6) is mounted on the top of the battery box (5).

Images