An unmanned aerial vehicle-mounted image acquisition device

Abstract

The utility model discloses an unmanned plane carried image acquisition device, including the installation tray of unmanned plane bottom, the bottom of installation tray is evenly provided with a plurality of connecting pieces along the circumference, and the bottom of a plurality of connecting pieces is commonly provided with glass protection cylinder, installation tray, connecting piece and glass protection cylinder form a plurality of arc frames in all are provided with arc filter plate, the bottom side of glass protection cylinder is embedded with fixed disc, the bottom of fixed disc is provided with a plurality of guide rods, and the top of guide rod projects fixed disc and is provided with limit disc, through setting up second motor, second motor drives second rotating shaft rotation, and the driving gear of its end portion drives first driven gear rotation, and then engages second driven gear, makes second rotating shaft and third rotating shaft synchronous rotation, and the mounting plate of fixed cylinder connection on the axle body drives binocular high definition camera and binocular infrared camera synchronous angle adjustment in proper order, realizes the synchronous acquisition of high definition and infrared image, satisfies the demand of multi -scene operation.

Description

Technical Field

[0001] This utility model relates to the field of image acquisition technology, specifically to an image acquisition device mounted on a drone. Background Technology

[0002] Image acquisition devices carried by drones are widely used in surveying, inspection, and security fields, and their imaging stability and environmental adaptability directly determine the quality of data acquisition. As industry demands upgrade, higher requirements are placed on the multi-scenario imaging, anti-interference, and durability of these devices, and existing equipment can no longer meet actual needs. Current image acquisition devices have obvious defects. Most of them use a single camera and cannot achieve high-definition and infrared imaging at the same time. The protective structure is rudimentary, and the lens is easily damaged by dust and impact. The heat dissipation and dust protection design is insufficient, and the components are prone to failure due to high temperature. The dust filter is inconvenient to disassemble and assemble. The balance between battery life and lightweight structure is poor, which restricts the working time and affects the acquisition efficiency. Existing improvements mostly address single problems and do not form a holistic solution. Therefore, there is an urgent need for an image acquisition device mounted on a drone, a drone image acquisition device with dual-mode imaging, reliable protection, and convenient maintenance. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an image acquisition device carried by a drone, so as to solve the technical problem that the existing drone image acquisition devices cannot simultaneously meet the requirements of multi-angle dual-mode imaging and efficient acquisition.

[0004] An image acquisition device mounted on a drone includes a mounting plate installed on the bottom of the drone. Multiple connectors are evenly arranged circumferentially on the bottom of the mounting plate, and a glass protective cylinder is provided on the bottom of the multiple connectors. Arc-shaped filter plates are provided in multiple arc-shaped frames formed by the mounting plate, connectors and glass protective cylinder. A fixing plate is embedded in the bottom side of the glass protective cylinder. Multiple guide rods are provided at the bottom of the fixing plate. The top of the guide rods extends out of the fixing plate and is provided with a limiting plate. The ends of the multiple guide rods are provided with a base plate. A motor mounting bracket is provided at the bottom center of the mounting plate. A first motor is fixedly connected in the motor mounting bracket. The output shaft of the first motor is vertically downward and connected to a first rotating shaft through a coupling. A U-shaped mounting bracket is fixedly connected to the bottom end of the first rotating shaft. A ring-shaped battery is provided at the bottom of the mounting plate, and the ring-shaped battery is electrically connected to the first motor; the motor mounting bracket is located inside the ring-shaped battery; A second and a third rotating shaft are arranged parallel to each other between the two side walls of the U-shaped fixing frame. The rear end of the second rotating shaft extends out of the side wall of the U-shaped fixing frame and is equipped with a second motor. The front end of the second rotating shaft extends out of the U-shaped fixing frame and is fixedly equipped with a driving gear. The front end of the third rotating shaft extends out of the U-shaped fixing frame and is fixedly equipped with a second driven gear. A fourth rotating shaft is arranged on the front side of the front side wall of the U-shaped fixing frame. A first driven gear that meshes with the driving gear and the second driven gear is fixed on the fourth rotating shaft. A fixing sleeve is fixedly sleeved on the rod body of both the second and third rotating shafts. A mounting plate is provided on one side of each fixing sleeve. A binocular high-definition camera and a binocular infrared camera are respectively mounted on the two mounting plates. A square battery is fixedly connected to the other side of the U-shaped bracket. The square battery is electrically connected to the second motor, the binocular high-definition camera, and the binocular infrared camera. The U-shaped fixing frame has a back plate on one side, and the back plate has multiple round holes. Two fan assemblies are embedded in the round holes, and an air filter frame is provided on the outside of the round holes.

[0005] This utility model also includes the following technical features: The connector includes a positioning cylinder fixed to the bottom of the mounting plate, with an insert cylinder inserted into the bottom of the positioning cylinder, and the glass protective cylinder is fixedly installed at the bottom of multiple insert cylinders.

[0006] Both mounting plates are equipped with a binocular high-definition camera and a binocular infrared camera via the first bolt.

[0007] A calcium chloride desiccant is fixedly connected to the top center of the fixed plate.

[0008] Bearings are provided between the second, third, and fourth rotating shafts and the mounting holes on the U-shaped fixing frame.

[0009] Multiple dampers are evenly arranged circumferentially between the fixed plate and the base plate. A spring is sleeved on the damper, and the two ends of the spring are fixedly connected to the bottom of the fixed plate and the top of the base plate, respectively.

[0010] Metal strips are embedded in the back plates on both sides of the air filter frame, and magnetic plates are magnetically attached to the metal strips. A connecting rod is provided between the magnetic plates and the air filter frame.

[0011] A rubber pad is adhered to the bottom side of the base plate.

[0012] The mounting plate has multiple protrusions evenly distributed on its circumference, and each protrusion has four threaded grooves.

[0013] The mounting plate has six uniformly spaced circumferentially spaced pressure relief grooves.

[0014] Compared with the prior art, this utility model provides an image acquisition device mounted on a drone, which has the following beneficial effects: (I) This utility model sets up a second motor, which drives the second rotating shaft to rotate. The active gear at the end of the second motor drives the first driven gear to rotate, and then meshes with the second driven gear, so that the second rotating shaft and the third rotating shaft rotate synchronously. The mounting plate connected to the fixed cylinder on the shaft then drives the binocular high-definition camera and the binocular infrared camera to adjust their angles synchronously, so as to realize the synchronous acquisition of high-definition and infrared images and meet the needs of multi-scene operation. (II) This utility model uses a positioning cylinder and an insert cylinder to ensure the glass protective cylinder is securely installed. Combined with the arc-shaped filter plate on the top side, it forms a closed protective space to prevent dust and foreign objects from impacting the binocular high-definition camera and the binocular infrared camera, thus avoiding affecting the acquisition efficiency. When the device lands, the rubber pad on the bottom plate contacts the ground first, the guide rod slides along the fixed plate, the damper and the outer spring work together to buffer the impact force, and the limiting plate is used to prevent the guide rod from detaching from the fixed plate. This can effectively reduce the impact of the vibration of the UAV on the various devices when it lands. (III) This utility model sets up a fan assembly, which accelerates the heat dissipation of the components. The magnetic plate fixed by the metal strip drives the connecting rod and the air filter frame to cover the air inlet of the fan, filtering dust. The magnetic structure is easy to disassemble and clean quickly, solving the problem of inconvenient disassembly and assembly of the dust filter components. The ring battery is used to power the first motor, while the square battery is used to power the second motor, the binocular high-definition camera and the binocular infrared camera. The load-reducing groove of the mounting plate reduces the weight while ensuring the structural strength, and the combined effect extends the working time. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a partial structural diagram of the bottom of the mounting plate in this utility model; Figure 3 This is a partial structural diagram of the internal structure of the glass protective cylinder in this utility model; Figure 4 This is a partial structural diagram of the U-shaped fixing frame in this utility model; Figure 5 This is a partial structural diagram of the rear side of the U-shaped fixing frame in this utility model; Figure 6 This is a partial cross-sectional structural diagram of the back plate in this utility model; Figure 7 This is a partial cross-sectional structural diagram of the glass protective cylinder in this utility model; Figure 8This is a partial cross-sectional structural diagram of the air filter frame mesh in this utility model.

[0016] The labels in the diagram represent the following: 1-Mounting plate, 2-Threaded groove, 3-Bearing groove, 4-Ring battery, 5-Motor mounting bracket, 6-First motor, 7-First shaft, 8-U-shaped mounting bracket, 9-Second shaft, 10-Third shaft, 11-Fixing cylinder, 12-Mounting plate, 13-Second motor, 14-Drive gear, 15-First driven gear, 16-Second driven gear, 17-Fourth shaft, 18-First bolt, 19-Dual-lens HD camera 20-Dual-lens infrared camera, 21-Square battery, 22-Back plate, 23-Fan assembly, 24-Metal strip, 25-Magnetic plate, 26-Connecting rod, 27-Filter frame mesh, 28-Positioning cylinder, 29-Second bolt, 30-Insert cylinder, 31-Glass protective cylinder, 32-Arc-shaped filter plate, 33-Fixing plate, 34-Calcium chloride desiccant, 35-Guide rod, 36-Limiting plate, 37-Base plate, 38-Rubber pad, 39-Damper, 40-Spring. Detailed Implementation

[0017] It should be noted that, unless otherwise specified, all components in this utility model are components known in the art.

[0018] The following are specific embodiments of the present invention. It should be noted that the present invention is not limited to the following specific embodiments. All equivalent modifications made based on the technical solutions of this application fall within the protection scope of the present invention.

[0019] This utility model also provides an image acquisition device mounted on a drone, such as... Figures 1 to 8 As shown, it includes a mounting plate 1 installed on the bottom of the drone. Multiple connectors are evenly arranged around the bottom of the mounting plate 1, and a glass protective cylinder 31 is provided at the bottom of the multiple connectors. Arc-shaped filter plates 32 are provided in multiple arc-shaped frames formed by the mounting plate 1, connectors and glass protective cylinder 31. A fixing plate 33 is embedded in the bottom side of the glass protective cylinder 31. Multiple guide rods 35 are provided at the bottom of the fixing plate 33. The top of the guide rods 35 extends out of the fixing plate 33 and is provided with a limiting plate 36. The ends of the multiple guide rods 35 are provided with a base plate 37. A motor mounting bracket 5 is provided at the bottom center of the mounting plate 1. A first motor 6 is fixedly connected in the motor mounting bracket 5. The output shaft of the first motor 6 is vertically downward and connected to a first rotating shaft 7 through a coupling. A U-shaped mounting bracket 8 is fixedly connected to the bottom end of the first rotating shaft 7. A ring-shaped battery 4 is provided at the bottom of the mounting plate 1, and the ring-shaped battery 4 is electrically connected to the first motor 6; the motor mounting bracket 5 is located inside the ring-shaped battery 4; A second rotating shaft 9 and a third rotating shaft 10 are arranged parallel between the two side walls of the U-shaped fixing frame 8. The rear end of the second rotating shaft 9 extends out of the side wall of the U-shaped fixing frame 8 and is equipped with a second motor 13. The front end of the second rotating shaft 9 extends out of the U-shaped fixing frame 8 and is equipped with a driving gear 14. The front end of the third rotating shaft 10 extends out of the U-shaped fixing frame 8 and is equipped with a second driven gear 16. A fourth rotating shaft 17 is arranged on the front side of the front side wall of the U-shaped fixing frame 8. A first driven gear 15 that meshes with the driving gear 14 and the second driven gear 16 is fixed on the fourth rotating shaft 17. A fixing sleeve 11 is fixedly sleeved on the rod body of the second rotating shaft 9 and the third rotating shaft 10. A mounting plate 12 is provided on one side of the fixing sleeve 11. A binocular high-definition camera 19 and a binocular infrared camera 20 are respectively mounted on the two mounting plates 12. A square battery 21 is fixedly connected to the other side of the U-shaped bracket 8. The square battery 21 is electrically connected to the second motor 13, the binocular high-definition camera 19 and the binocular infrared camera 20. A back plate 22 is provided on one side of the U-shaped mounting bracket 8. The back plate 22 has multiple round holes, in which two fan assemblies 23 are embedded. A filter frame 27 is provided on the outside of the round holes.

[0020] In the above technical solution, the glass protective cylinder 31 cooperates with the arc-shaped filter plate 32 on the top side to form a closed protective space, blocking dust and foreign objects from hitting the internal core equipment, while ensuring light penetration so as not to affect imaging; the guide rod 35 provides guidance for the lifting and lowering of the base plate 37, and the limiting plate 36 restricts the sliding stroke of the guide rod 35 to prevent it from detaching from the fixed plate 33; the ring battery 4 provides independent power supply for the first motor 6 to ensure the stable operation of the horizontal angle adjustment mechanism and avoid power supply conflicts with other components.

[0021] The motor mounting bracket 5 provides rigid mounting support for the first motor 6. The first motor 6 drives the first rotating shaft 7 to rotate through its output end. The first rotating shaft 7 transmits power to the U-shaped mounting bracket 8, causing the U-shaped mounting bracket 8 and the camera on the bracket to rotate synchronously, realizing flexible adjustment of the horizontal angle of image acquisition to meet the needs of different acquisition angles.

[0022] The second motor 13 drives the second rotating shaft 9 to rotate. The driving gear 14 at the end of the second rotating shaft 9 meshes with the first driven gear 15, transmitting power to the third rotating shaft 10. The second driven gear 16 at the end of the third rotating shaft 10 cooperates with the first driven gear 15, ensuring that the second rotating shaft 9 and the third rotating shaft 10 rotate synchronously, laying the foundation for the synchronous angle adjustment of the dual cameras. The fourth rotating shaft 17 provides support for the first driven gear 15, ensuring the stability of the gear meshing transmission. The first driven gear 15, as an intermediate transmission component, meshes with both the driving gear 14 and the second driven gear 16, synchronously distributing the power of the second motor 13 to the second rotating shaft 9 and the third rotating shaft 10, achieving the same speed and direction of rotation of the two rotating shafts.

[0023] The fixed cylinder 11 achieves a rigid connection between the second rotating shaft 9, the third rotating shaft 10 and the mounting plate 12, and transmits the rotational power of the rotating shaft to the mounting plate 12, causing the mounting plate 12 and the camera to rotate synchronously; the binocular high-definition camera 19 acquires high-definition visible light images, and the binocular infrared camera 20 acquires infrared images. The two work synchronously to meet the image acquisition needs in different scenarios. The square battery 21 provides centralized power to the second motor 13, the binocular high-definition camera 19, and the binocular infrared camera 20, ensuring the coordinated operation of the core working components.

[0024] After the fan assembly 23 is activated, it accelerates the air circulation inside the device, quickly removing the heat generated by the camera, motor, and other components, thus preventing equipment failure due to high temperatures. The air filter frame 27 filters the air entering the device, blocking dust and impurities, preventing dust from adhering to the camera lens or component surfaces, and ensuring image quality and equipment lifespan.

[0025] Preferably, six guide rods 35 are provided.

[0026] The working principle of this solution is as follows: First, fix the device to the bottom of the drone. Before the drone takes off, the ring battery 4 and the square battery 21 start to supply power independently. The ring battery 4 provides power to the first motor 6, while the square battery 21 supplies power to the second motor 13, the binocular high-definition camera 19 and the binocular infrared camera 20. Adjusting the camera angle according to image acquisition requirements, the second motor 13 is started, driving the second rotating shaft 9 to rotate. The drive gear 14 at the end of the second rotating shaft 9 rotates accordingly, driving the first driven gear 15 meshing with it to rotate. The first driven gear 15 drives the second driven gear 16 meshing with it, and the second driven gear 16 drives the fourth rotating shaft 17 to rotate, so that the third rotating shaft 10 and the second rotating shaft 9 rotate synchronously. The fixed cylinders 11 on the two rotating shafts drive the corresponding mounting plates 12 to flip, thereby enabling the binocular high-definition camera 19 and the binocular infrared camera 20 to adjust their pitch angle synchronously. If it is necessary to adjust the horizontal acquisition direction, the first motor 6 is started, driving the first rotating shaft 7 to rotate, driving the U-shaped fixing frame 8 to rotate, realizing the flexible adjustment of the horizontal angle of the camera until the preset acquisition angle is reached.

[0027] After the angle adjustment is completed, the image acquisition work is started. The binocular high-definition camera 19 and the binocular infrared camera 20 operate synchronously to acquire high-definition visible light images and infrared images respectively. The acquired image data is transmitted to the external controller in real time.

[0028] When the UAV completes its data collection and prepares to land, the bottom side of the base plate 37 contacts the ground, and the reaction force of the ground pushes the base plate 37 upward, and the guide rod 35 slides along the through hole of the fixed plate 33.

[0029] The connector includes a positioning cylinder 28 fixed to the bottom of the mounting plate 1, with a plug cylinder 30 inserted into the bottom of the positioning cylinder 28, and a glass protective cylinder 31 fixedly installed at the bottom of the multiple plug cylinders 30.

[0030] In the above technical solution, the positioning cylinder 28 forms a detachable fixing structure with the insertion cylinder 30 through the second bolt 29, providing a stable support for the glass protective cylinder 31, which facilitates the installation and maintenance of the glass protective cylinder 31. After the insertion cylinder 30 is aligned with the positioning cylinder 28 and inserted, the second bolt 29 is tightened to complete the fixing, so that the glass protective cylinder 31 and the arc-shaped filter plate 32 form a closed space to protect the internal equipment.

[0031] Preferably, there are six connectors.

[0032] A calcium chloride desiccant 34 is fixedly connected to the top center of the fixed plate 33.

[0033] Calcium chloride desiccant 34 is used for small functions such as reducing the moisture content of the air.

[0034] Bearings are installed between the second rotating shaft 9, the third rotating shaft 10, and the fourth rotating shaft 17 and the mounting holes on the U-shaped fixing frame 8.

[0035] In the above technical solution, the second rotating shaft 9, the third rotating shaft 10, and the fourth rotating shaft 17 are connected to the U-shaped fixing frame 8 through bearings. The bearings are used to ensure the stable rotation of the second rotating shaft 9, the third rotating shaft 10, and the fourth rotating shaft 17, providing a carrier for the adjustment of the camera's pitch angle.

[0036] Multiple dampers 39 are evenly arranged circumferentially between the fixed plate 33 and the base plate 37. Springs 40 are sleeved on the dampers 39, and the two ends of the springs 40 are fixedly connected to the bottom of the fixed plate 33 and the top of the base plate 37, respectively.

[0037] In the above technical solution, when the UAV lands, the bottom side of the base plate 37 contacts the ground, and the ground reaction force pushes the base plate 37 upward. By setting the damper 39 and the outer spring 40 together to compress, the impact energy is absorbed, forming a double shock absorption, which is beneficial to protect the internal precision components such as the binocular high-definition camera 19 and the binocular infrared camera 20.

[0038] Preferably, six dampers 39 are provided; Metal strips 24 are embedded on the back plates 22 on both sides of the air filter frame 27. Magnetic plates 25 are magnetically attached to the metal strips 24. A connecting rod 26 is provided between the magnetic plates 25 and the air filter frame 27.

[0039] In the above technical solution, the metal strip 24 has magnetic properties, and the magnetic plate 25, through magnetic attraction with the metal strip 24, enables convenient fixation of the air filter mesh 27. Installation and removal can be completed without tools, facilitating the cleaning and maintenance of the air filter mesh 27. The connecting rod 26 connects the magnetic plate 25 and the air filter mesh 27, ensuring that the air filter mesh 27 accurately covers the air intake of the fan assembly 23. If, after shooting, the air filter mesh 27 accumulates a lot of dust, affecting heat dissipation, simply pull the air filter mesh 27 to detach the magnetic plate 25 from the metal strip 24, allowing the air filter mesh 27 to be removed for cleaning. After cleaning, simply reattach the magnetic plate 25 to the metal strip 24 to reset it.

[0040] A rubber pad 38 is bonded to the bottom side of the base plate 37.

[0041] In the above technical solution, when the drone lands, the rubber pad 38 on the bottom side of the base plate 37 contacts the ground first, which can buffer the initial impact.

[0042] Both mounting plates 12 are equipped with a binocular high-definition camera 19 and a binocular infrared camera 20 via the first bolt 18.

[0043] In the above technical solution, the first bolt 18 enables the binocular high-definition camera 19, the binocular infrared camera 20 and the mounting plate 12 to be detachably fixed through threaded connection, which facilitates the debugging, maintenance and replacement of the cameras.

[0044] The mounting plate 1 has multiple protrusions evenly distributed on its circumference, and each protrusion has four threaded grooves 2.

[0045] In the above technical solution, the threaded groove 2 is used for bolt connection between this solution and the UAV, and the overall device is firmly fixed through bolt engagement.

[0046] Six pressure relief grooves 3 are evenly distributed around the upper edge of the mounting plate 1.

[0047] In the above technical solution, the weight reduction groove 3 reduces the weight of the mounting plate 1 without reducing the structural strength of the mounting plate 1, thereby achieving a lightweight design of the device, reducing the load on the drone, and extending the flight time.

Claims

1. An image acquisition device mounted on a drone, comprising a mounting plate (1) installed on the bottom of the drone, characterized in that, The bottom of the mounting plate (1) is uniformly provided with multiple connectors along the circumference, and the bottom of the multiple connectors is provided with a glass protective cylinder (31); the multiple arc-shaped frames formed by the mounting plate (1), connectors and glass protective cylinder (31) are all provided with arc-shaped filter plates (32). The bottom side of the glass protective cylinder (31) is fitted with a fixing plate (33), and the bottom of the fixing plate (33) is provided with multiple guide rods (35). The top of the guide rods (35) extends out of the fixing plate (33) and is provided with a limiting plate (36); the ends of the multiple guide rods (35) are provided with a base plate (37). The mounting plate (1) has a motor mounting bracket (5) in the middle of its bottom. A first motor (6) is fixedly connected in the motor mounting bracket (5). The output shaft of the first motor (6) is vertically downward and connected to a first rotating shaft (7) through a coupling. A U-shaped mounting bracket (8) is fixedly connected to the bottom of the first rotating shaft (7). A ring-shaped battery (4) is provided at the bottom of the mounting plate (1), and the ring-shaped battery (4) is electrically connected to the first motor (6); the motor mounting bracket (5) is located inside the ring-shaped battery (4); A second rotating shaft (9) and a third rotating shaft (10) are arranged parallel between the two side walls of the U-shaped fixing frame (8). The rear end of the second rotating shaft (9) extends out of the side wall of the U-shaped fixing frame (8) and is equipped with a second motor (13). The front end of the second rotating shaft (9) extends out of the U-shaped fixing frame (8) and is equipped with a driving gear (14). The front end of the third rotating shaft (10) extends out of the U-shaped fixing frame (8) and is equipped with a second driven gear (16). A fourth rotating shaft (17) is arranged on the front side of the front side wall of the U-shaped fixing frame (8). A first driven gear (15) that meshes with the driving gear (14) and the second driven gear (16) is fixed on the fourth rotating shaft (17). A fixing sleeve (11) is fixedly sleeved on the rod body of the second rotating shaft (9) and the third rotating shaft (10). A mounting plate (12) is provided on one side of the fixing sleeve (11). A binocular high-definition camera (19) and a binocular infrared camera (20) are respectively mounted on the two mounting plates (12). A square battery (21) is fixedly connected to the other side of the U-shaped bracket (8). The square battery (21) is electrically connected to the second motor (13), the binocular high-definition camera (19), and the binocular infrared camera (20). A back plate (22) is provided on one side of the U-shaped fixing frame (8). The back plate (22) has multiple round holes, in which two fan assemblies (23) are embedded. A filter mesh (27) is provided on the outside of the round holes.

2. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, The connector includes a positioning cylinder (28) fixed to the bottom of the mounting plate (1), and a plug cylinder (30) is inserted into the bottom of the positioning cylinder (28). The bottom of the plurality of plug cylinders (30) is fixedly provided with the glass protective cylinder (31).

3. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, Both mounting plates (12) are equipped with a binocular high-definition camera (19) and a binocular infrared camera (20) by means of a first bolt (18).

4. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, A calcium chloride desiccant (34) is fixedly connected to the top center of the fixed plate (33).

5. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, Bearings are provided between the second rotating shaft (9), the third rotating shaft (10) and the fourth rotating shaft (17) and the mounting holes on the U-shaped fixing frame (8).

6. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, Multiple dampers (39) are evenly arranged circumferentially between the fixed disk (33) and the base plate (37). A spring (40) is sleeved on the damper (39), and the two ends of the spring (40) are fixedly connected to the bottom of the fixed disk (33) and the top of the base plate (37) respectively.

7. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, Metal strips (24) are embedded on the back plates (22) on both sides of the air filter mesh (27). Magnetic plates (25) are magnetically attached to the metal strips (24). A connecting rod (26) is provided between the magnetic plates (25) and the air filter mesh (27).

8. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, A rubber pad (38) is bonded to the bottom side of the base plate (37).

9. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, The mounting plate (1) has a plurality of protrusions evenly arranged on its circumference, and each of the protrusions has four threaded grooves (2).

10. The image acquisition device mounted on the UAV as described in claim 1, characterized in that, The mounting plate (1) has six circumferentially evenly spaced pressure relief grooves (3).

Images