A centimeter-level positioning mechanism for airborne camera equipment used in unmanned aerial vehicles (UAVs)

Abstract

This utility model belongs to the field of airborne equipment, specifically a centimeter-level positioning mechanism for an airborne camera device used in unmanned aerial vehicles (UAVs). It includes a main body with a disassembly / assembly mechanism at its bottom, comprising a disassembly / assembly component and a camera component. The disassembly / assembly component includes a fixed plate with a connecting plate fixedly mounted on its top. A driving bevel gear is rotatably mounted on one side of the connecting plate, and a rotating handle is fixedly mounted on one end of the driving bevel gear. A bevel gear plate meshes with the top of the driving bevel gear, and two driven bevel gears mesh with the bottom of the bevel gear plate. The two driven bevel gears are rotatably mounted on the top of the connecting plate, and a threaded ring is formed on the top of the bevel gear plate. By rotating the rotating handle, the driving bevel gear is driven, which, through the bevel gear plate and rack, drives a metal clip to engage the connecting plate. Combined with the magnetic force of a magnetic ring, this achieves tool-free, rapid disassembly / assembly of the camera device, solving the problem of cumbersome traditional bolt installation and improving equipment replacement efficiency.

Description

Technical Field

[0001] This utility model relates to the field of airborne equipment, specifically a centimeter-level positioning mechanism for an airborne camera device used in unmanned aerial vehicles (UAVs). Background Technology

[0002] In the low-altitude economic field, centimeter-level positioning mechanisms for airborne camera equipment used in drones provide precise positioning for drones and other aircraft, ensuring flight safety and mission execution accuracy.

[0003] Currently, existing technologies still have the following shortcomings: First, the installation of camera equipment and drones usually relies on bolt fastening, which requires the use of tools. The disassembly and assembly process is cumbersome and cannot meet the needs of quickly replacing or maintaining camera equipment during drone operations.

[0004] Secondly, traditional positioning mechanisms lack dynamic angle adjustment capabilities, making it impossible to flexibly change the camera's posture according to the shooting scene, thus limiting the range and accuracy of aerial photography.

[0005] Therefore, a centimeter-level positioning mechanism for an airborne camera device for unmanned aerial vehicles (UAVs) is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the problems of cumbersome installation and disassembly and inconvenient camera angle adjustment, this utility model proposes a centimeter-level positioning mechanism for airborne camera equipment used in drones.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: A centimeter-level positioning mechanism for an airborne camera device for a drone, comprising a main body, a disassembly and assembly movable device at the bottom of the main body, the disassembly and assembly movable device comprising a disassembly and assembly component and a camera movable component; the disassembly and assembly component comprises a fixing plate, a connecting plate fixedly mounted on the top of the fixing plate, a driving bevel gear rotatably mounted on one side of the connecting plate, a rotating handle fixedly mounted on one end of the driving bevel gear, a bevel gear disk meshing with the top of the driving bevel gear, two driven bevel gears meshing with the bottom of the bevel gear disk, two driven bevel gears rotatably mounted on the top of the connecting plate, a threaded ring opening on the top of the bevel gear disk, the threaded ring meshing with three metal clips through a rack, the disassembly and assembly component further comprising a connecting plate, a slot opening on the connecting plate, the slot engaging with the three metal clips, a magnetic ring fixedly mounted in the slot, the magnetic ring being magnetically connected to the three metal clips.

[0008] Preferably, the assembly / disassembly component further includes a connecting frame, which is fixedly installed on the bottom of the fixing plate. The connecting frame is sequentially fixedly installed with a satellite navigation system, an inertial navigation system, and a multi-sensor fusion positioning system.

[0009] Preferably, the assembly / disassembly component further includes a limiting plate, the bottom of which is fixedly connected to the connecting plate. The limiting plate has three sliding grooves, and metal clips are slidably installed in each of the three sliding grooves.

[0010] Preferably, the camera movement component includes a mounting plate, a movable plate is hinged to the bottom of the mounting plate, and a camera is fixedly mounted on the bottom of the movable plate.

[0011] Preferably, the camera movement component further includes a micro motor, which is fixedly installed on the bottom of the mounting plate. A first pulley is fixedly installed at the output end of the micro motor. A transmission belt is driven to the outer surface of the first pulley. A second pulley is driven to the other side of the transmission belt. A ball screw is fixedly installed on one side of the back of the second pulley. The ball screw is rotatably installed on the bottom of the mounting plate.

[0012] Preferably, a ball nut is rotatably mounted through the ball screw, a linkage rod is hinged to one side of the ball nut, and the other side of the linkage rod is hinged to the top of the movable plate.

[0013] Preferably, the main body includes a frame, four brushless motors are fixedly installed on the top of the frame, propellers are fixedly installed at the output ends of the four brushless motors, a battery compartment is fixedly installed at the bottom of the frame, and support legs are fixedly installed at the bottom of the frame.

[0014] Preferably, a connecting plate is fixedly installed at the bottom of the battery compartment.

[0015] The advantages of this utility model are:

[0016] 1. This utility model, through the structural design of the disassembly and assembly parts, drives the active bevel gear by rotating the handle, which in turn drives the metal clip to engage the connecting plate via the bevel gear disc and rack, and is fixed by the magnetic force of the magnetic ring, thus realizing tool-free quick disassembly and assembly of the camera equipment, solving the problem of cumbersome traditional bolt installation, and improving the efficiency of equipment replacement;

[0017] 2. Through the structural design of the camera's movable component, the micro motor drives the ball screw through the transmission mechanism, causing the movable plate to swing and realize the dynamic adjustment of the camera's angle; the satellite navigation system, inertial navigation system and multi-sensor fusion positioning system on the connecting frame work together to correct positioning errors in real time during the drone's flight, ensuring centimeter-level positioning accuracy and improving shooting adaptability in complex scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is an exploded view of the overall structure of this utility model;

[0021] Figure 3 This is an exploded view of the disassembly and assembly device structure of this utility model;

[0022] Figure 4 This is an exploded view of the disassembly and assembly structure of this utility model;

[0023] Figure 5 This utility model Figure 4 Enlarged schematic diagram of the structure at point A in the middle;

[0024] Figure 6 This is a schematic diagram of the camera movement component of this utility model.

[0025] In the diagram: 1. Main body; 2. Disassembly and assembly device; 3. Disassembly and assembly parts; 4. Camera moving parts; 11. Frame; 12. Brushless motor; 13. Propeller; 14. Battery compartment; 15. Support leg; 21. Fixing plate; 22. Connecting frame; 23. Satellite navigation system; 24. Inertial navigation system; 25. Multi-sensor fusion positioning system; 26. Connecting plate; 27. Rotary handle; 28. Driving bevel gear; 29. ​​Driven bevel gear; 31. Bevel gear disc; 32. Threaded ring; 33. Limiting disc; 34. Metal chuck; 35. Connecting plate; 36. Rack; 37. Slot; 38. Magnetic ring; 41. Mounting plate; 42. Moving plate; 43. Micro motor; 44. First pulley; 45. Transmission belt; 46. Second pulley; 47. Ball screw; 48. Ball nut; 49. Linkage rod; 401. Camera. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 As shown, a centimeter-level positioning mechanism for an airborne camera device for a drone includes a main body 1. A disassembly / assembly movable device 2 is provided at the bottom of the main body 1. The disassembly / assembly movable device 2 includes a disassembly / assembly component 3 and a camera movable component 4. The disassembly / assembly component 3 includes a fixing plate 21. A connecting plate 26 is fixedly mounted on the top of the fixing plate 21. A drive bevel gear 28 is rotatably mounted on one side of the connecting plate 26. A rotating handle 27 is fixedly mounted on one end of the drive bevel gear 28. A bevel gear disk 31 is meshed with the top of the drive bevel gear 28. The bottom of the 1 is meshed with two driven bevel gears 29. The two driven bevel gears 29 are rotatably mounted on the top of the connecting plate 26. The top of the bevel gear plate 31 is provided with a threaded ring 32. The threaded ring 32 is meshed with three metal clips 34 through the rack 36. The disassembly and assembly part 3 also includes a connecting plate 35. The connecting plate 35 is provided with a slot 37. The slot 37 is engaged with the three metal clips 34. A magnetic ring 38 is fixedly installed in the slot 37. The magnetic ring 38 is magnetically connected to the three metal clips 34.

[0028] During operation, align the slot 37 of the connecting plate 35 with the metal clip 34, and rotate the handle 27 clockwise. The driving bevel gear 28 drives the bevel gear disk 31 to rotate. When the threaded ring 32 rotates, the rotational motion is converted into linear motion through the rack 36, pushing the metal clip 34 to move along the slide groove of the limiting disk 33 and engage with the slot 37. At the same time, the magnetic ring 38 and the metal clip 34 are magnetically attracted to each other, forming a dual connection of mechanical engagement and magnetic fixation. When disassembling, rotate the handle 27 counterclockwise, and the metal clip 34 retracts, releasing the engagement. Separation can be achieved without tools.

[0029] Furthermore, the assembly / disassembly component 3 also includes a connecting frame 22, which is fixedly installed on the bottom of the fixing plate 21. The connecting frame 22 is sequentially fixedly installed with a satellite navigation system 23, an inertial navigation system 24, and a multi-sensor fusion positioning system 25.

[0030] During operation, the satellite navigation system 23: Satellite navigation positioning methods are divided into satellite-based and ground-based. Satellite-based positioning calculates its location by receiving signals from four or more navigation satellites. This method does not rely on ground base stations or networks and can achieve meter-level positioning. Ground-based positioning obtains the error from satellite positioning measurements by connecting to fixed reference stations established on the ground. It then compares and corrects the satellite positioning coordinates with its own precision coordinates to obtain centimeter-level positioning data. Its core function is to provide a global absolute positioning benchmark, solving the problem of large-scale spatial reference.

[0031] Inertial Navigation System 24: Inertial navigation is an autonomous navigation system that does not rely on external information. By measuring the acceleration of the vehicle in an inertial reference frame, integrating it over time, and transforming it into the navigation coordinate system, it can obtain information such as velocity, yaw angle, and position in the navigation coordinate system. However, its disadvantages are that positioning accuracy gradually decreases over time, and the initial positioning time is relatively long. Its core function is to provide short-term, high-precision relative positioning in situations such as urban canyons or indoor environments when satellite signals are lost, and to suppress the accumulation of dynamic errors.

[0032] The multi-sensor fusion positioning system 25 achieves mapping and positioning functions through multi-sensor fusion, including radar, vision, IMU, and GNSS (available but not dependent). Scenarios include both structured and unstructured environments, and the positioning mode is compatible with both GNSS-available and GNSS-rejected states. In terms of performance, positioning accuracy can reach within 20cm, with a cumulative mileage error not exceeding 0.015% * mileage. Its core function is to achieve accurate positioning in complex scenarios by correcting inertial navigation drift through environmental perception data, including terrain and obstacle information.

[0033] Furthermore, the assembly / disassembly component 3 also includes a limiting plate 33. The bottom of the limiting plate 33 is fixedly connected to the connecting plate 26. The limiting plate 33 has three sliding grooves, and metal clips 34 are slidably installed in each of the three sliding grooves.

[0034] During operation, the groove of the limit plate 33 provides a guide track for the metal chuck 34, ensuring that the chuck moves synchronously when expanding or retracting, and avoiding deviation that could lead to chuck failure.

[0035] Furthermore, the camera movable component 4 includes a mounting plate 41, a movable plate 42 is hinged to the bottom of the mounting plate 41, and a camera 401 is fixedly mounted on the bottom of the movable plate 42;

[0036] During operation, the movable plate 42 can swing around the hinge point, driving the camera 401 to adjust the pitch angle, adapting to the shooting needs of different scenes during aerial photography.

[0037] Furthermore, the camera moving part 4 also includes a micro motor 43, which is fixedly installed on the bottom of the mounting plate 41. A first pulley 44 is fixedly installed at the output end of the micro motor 43. A transmission belt 45 is connected to the outer surface of the first pulley 44. A second pulley 46 is connected to the other side of the transmission belt 45. A ball screw 47 is fixedly installed on one side of the back of the second pulley 46. The ball screw 47 is rotatably installed on the bottom of the mounting plate 41.

[0038] When in operation, after the micro motor 43 starts, it drives the second pulley 46 to rotate through the first pulley 44 and the transmission belt 45, which in turn drives the ball screw 47 to rotate.

[0039] Furthermore, a ball screw 47 is rotatably mounted with a ball nut 48, a linkage rod 49 is hinged to one side of the ball nut 48, and the other side of the linkage rod 49 is hinged to the top of the movable plate 42.

[0040] During operation, when the ball screw 47 rotates, the ball nut 48 moves along the screw axis, which pushes the movable plate 42 to swing around the hinge point through the linkage rod 49, so as to achieve precise adjustment of the camera 401 angle.

[0041] Furthermore, the main body 1 includes a frame 11, four brushless motors 12 are fixedly installed on the top of the frame 11, propellers 13 are fixedly installed on the output ends of the four brushless motors 12, a battery compartment 14 is fixedly installed on the bottom of the frame 11, and support legs 15 are fixedly installed on the bottom of the frame 11.

[0042] During operation, the brushless motor 12 drives the propeller 13 to rotate, providing lift and power for the drone's flight; the battery compartment 14 supplies power to the entire unit, and the support legs 15 provide cushioning support during drone take-off and landing.

[0043] Furthermore, a connecting plate 35 is fixedly installed at the bottom of the battery compartment 14;

[0044] During operation, the connecting plate 35 engages with the metal clip 34 of the disassembly / assembly component 3 via the slot 37, enabling a quick connection between the camera device and the main body 1 and ensuring structural stability.

[0045] Working principle: Step 1, during installation, align the slot 37 of the connecting plate 35 with the metal clips 34 of the disassembly part 3, and rotate the handle 27 clockwise. The active bevel gear 28 drives the bevel gear disk 31 to rotate, which pushes the three metal clips 34 outward along the sliding groove of the limiting disk 33 through the rack 36, and they are inserted into the slot 37. At the same time, the magnetic ring 38 and the metal clips 34 are magnetically attracted to each other, enhancing the connection stability. During disassembly, rotate the handle 27 counterclockwise, and the metal clips 34 retract, releasing the engagement with the slot 37. The camera equipment can be separated without tools.

[0046] Step 2: After the micro motor 43 starts, it drives the second pulley 46 to rotate through the first pulley 44 and the transmission belt 45, which in turn drives the ball screw 47 to rotate. The ball nut 48 moves along the screw axis and pushes the movable plate 42 to swing around the hinge point through the linkage rod 49, so as to realize the precise adjustment of the pitch angle of the camera 401 and adapt to the needs of different scenarios such as aerial photography and surveying.

[0047] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A centimeter-level positioning mechanism for an airborne camera device used in unmanned aerial vehicles (UAVs), comprising a main body (1), characterized in that: The bottom of the main body (1) is provided with a disassembly and assembly device (2), which includes a disassembly and assembly component (3) and a camera component (4). The disassembly and assembly component (3) includes a fixing plate (21), a connecting plate (26) is fixedly installed on the top of the fixing plate (21), a drive bevel gear (28) is rotatably installed on one side of the connecting plate (26), a handle (27) is fixedly installed on one end of the drive bevel gear (28), a bevel gear disk (31) is meshed with the top of the drive bevel gear (28), and two driven bevel gears are meshed with the bottom of the bevel gear disk (31). The wheel (29) and two driven bevel gears (29) are rotatably mounted on the top of the connecting disc (26). The top of the bevel disc (31) is provided with a threaded ring (32). The threaded ring (32) is meshed with a rack (36) and connected to three metal clips (34). The disassembly and assembly part (3) also includes a connecting plate (35). The connecting plate (35) is provided with a slot (37). The slot (37) is engaged with the three metal clips (34). A magnetic ring (38) is fixedly installed in the slot (37). The magnetic ring (38) is magnetically connected to the three metal clips (34).

2. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 1, characterized in that: The assembly / disassembly component (3) also includes a connecting frame (22), which is fixedly installed on the bottom of the fixing plate (21). The connecting frame (22) is sequentially fixedly installed with a satellite navigation system (23), an inertial navigation system (24), and a multi-sensor fusion positioning system (25).

3. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 2, characterized in that: The assembly / disassembly component (3) also includes a limiting plate (33), the bottom of which is fixedly connected to the connecting plate (26). The limiting plate (33) has three sliding grooves, and metal clips (34) are slidably installed in each of the three sliding grooves.

4. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 1, characterized in that: The camera movable component (4) includes a mounting plate (41), and a movable plate (42) is hinged to the bottom of the mounting plate (41). A camera (401) is fixedly mounted on the bottom of the movable plate (42).

5. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 4, characterized in that: The camera movement component (4) also includes a micro motor (43), which is fixedly installed on the bottom of the mounting plate (41). The output end of the micro motor (43) is fixedly installed with a first pulley (44). The outer surface of the first pulley (44) is connected to a transmission belt (45). The other side of the transmission belt (45) is connected to a second pulley (46). A ball screw (47) is fixedly installed on one side of the back of the second pulley (46). The ball screw (47) is rotatably installed on the bottom of the mounting plate (41).

6. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 5, characterized in that: The ball screw (47) is rotatably mounted with a ball nut (48), and a linkage rod (49) is hinged to one side of the ball nut (48), while the other side of the linkage rod (49) is hinged to the top of the movable plate (42).

7. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 1, characterized in that: The main body (1) includes a frame (11), four brushless motors (12) are fixedly installed on the top of the frame (11), and propellers (13) are fixedly installed at the output ends of the four brushless motors (12). A battery compartment (14) is fixedly installed at the bottom of the frame (11), and a support leg (15) is fixedly installed at the bottom of the frame (11).

8. The centimeter-level positioning mechanism for an airborne camera device for a drone according to claim 7, characterized in that: A connecting plate (35) is fixedly installed at the bottom of the battery compartment (14).

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