Aerial survey unmanned aerial vehicle with camera anti-shake device

Abstract

The utility model provides an aerial survey unmanned aerial vehicle with a camera anti-shake device. The unmanned aerial vehicle comprises an unmanned aerial vehicle body, a camera and a camera anti-shake device, the camera anti-shake device comprises a support, a rotating shaft and a sliding plate, the support is installed at the bottom of the unmanned aerial vehicle body, and the camera is installed at the bottom of the support; baffles are symmetrically installed on the edges of the two sides of the bottom of the unmanned aerial vehicle body, a rotating shaft fixedly penetrates through a support, the two ends of the rotating shaft are rotationally connected with the baffles correspondingly, and a sliding groove is formed in the support and arranged below the rotating shaft in parallel. The sliding plate is installed in the sliding groove of the support in a sliding mode, a tooth groove is formed in the bottom of the sliding plate, a driven gear is meshed with the lower portion of the tooth groove, a linkage gear is arranged on the camera, and the linkage gear is meshed with the lower portion of the driven gear. According to the utility model, the anti-shake effect of the camera is realized by adopting a mechanical structure, and the conditions of difficulty in later troubleshooting and long consumed time caused by adopting an electronic system are prevented.

Description

Technical Field

[0001] The utility model relates to the field of unmanned aerial vehicles (UAVs), and in particular to an aerial survey UAV with a camera anti-shake device. Background Art

[0002] Miniature multi-rotor unmanned aerial vehicles with vertical take-off and landing and stable hovering capabilities are widely used in civil and military fields such as target tracking, ocean detection, fishery administration, and border defense. The vibration force of drones during flight causes the camera to shake, so an aerial survey drone with a camera anti-shake device is needed.

[0003] During aerial surveys, various factors can cause camera shake. Existing drones install an attitude acquisition circuit board inside their lenses to achieve anti-shake and stabilization. However, since the circuit board is an electronic system, when the electronic system fails, the drone will no longer have the anti-shake function. External tools are needed to troubleshoot the problem step by step, and the process is relatively cumbersome. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the existing technology and to propose an aerial survey drone with a camera anti-shake device. The drone is equipped with a mechanical anti-shake device, which can automatically level the camera according to the state of the drone during aerial photography, thereby achieving the purpose of anti-shake.

[0005] To achieve the above-mentioned object, the present invention provides an aerial survey drone with a camera anti-shake device, comprising a drone body and a camera disposed at the bottom of the drone body, a plurality of legs fixedly connected to both sides of the drone body, the drone also comprising a camera anti-shake device, the camera anti-shake device comprising a bracket, a rotating shaft, and a leveling mechanism, the bracket being mounted at the bottom of the drone body, and the camera being mounted at the bottom of the bracket; baffles being symmetrically mounted at both side edges of the bottom of the drone body, the rotating shaft fixedly passing through the bracket, and rotatably connected to the baffles at both ends, the bracket being provided with a slide groove, and the slide groove being parallel to and disposed below the rotating shaft; the leveling mechanism comprising a slide plate disposed parallel to and disposed below the rotating shaft, a driven gear rotatably mounted on the inner wall of the bracket, and a linkage gear mounted on the camera, the slide plate being slidably mounted in the slide groove of the bracket, a tooth groove being provided at the bottom of the slide plate, the driven gear being located between the slide plate and the camera, the upper portion of the driven gear meshing with a rack at the bottom of the slide plate, and the lower portion of the driven gear meshing with the linkage gear; fixed plates being respectively provided at positions adjacent to both ends of the rotating shaft, the two fixed plates being symmetrically disposed on both sides of the bracket, the ends of the slide plate being connected to the fixed plates by sliding springs.

[0006] The better technical solution of the utility model is as follows: the bracket is symmetrically provided with stable brackets on both sides perpendicular to the direction of the rotating axis, and each stable bracket includes a fixed U-shaped frame, a rotating plate and a movable U-shaped frame. The fixed U-shaped frame is fixedly installed on the bracket, one end of the rotating plate is rotatably connected to the fixed U-shaped frame, and the other end is rotatably connected to the movable U-shaped frame, and a movable block is fixedly connected to the top of the movable U-shaped frame; two movable grooves are correspondingly opened at the bottom of the drone body, and the movable blocks of the two groups of stable brackets are respectively slidably embedded in the corresponding movable grooves.

[0007] A better technical solution of the present invention is as follows: a limiting groove is provided on the top of the slide, the limiting groove is communicated with the slide, the top of the slide plate is fixedly connected to a limiting strip, and the limiting strip is located inside the limiting groove.

[0008] The better technical solution of the utility model is as follows: a spring hole is opened at the bottom of each support leg, a buffer spring is fixedly connected to the top of the inner wall of the spring hole, a buffer rod is fixedly connected to the bottom of the buffer spring, and a buffer pad is fixedly connected to the bottom of the buffer rod.

[0009] A better technical solution of the present invention is as follows: the racks of the linkage gear are distributed on the upper 2 / 3 of the ring surface, and the camera is connected to the 1 / 3 of the ring surface where the racks are not set on the linkage gear.

[0010] A better technical solution of the present invention is as follows: the lower part of the bracket is provided with a hollow cavity which is connected to the slide groove and has an open bottom surface; the camera and the driven gear are both installed in the hollow cavity in the lower part of the bracket.

[0011] The preferred technical solution of the present invention is that the elastic force of the sliding spring is smaller than the gravity of the skateboard and does not affect the normal sliding of the skateboard.

[0012] A better technical solution of the present utility model is that one end of the moving block is connected to the inner groove end surface of the moving groove through a moving spring.

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

[0014] (1) The anti-shake device of the present invention includes a left-right leveling mechanism and a front-back leveling mechanism. The left-right leveling mechanism includes baffles fixed on the two side edges of the bottom of the drone body, the opposite surfaces of the baffles are movably connected to the rotating shaft, the outer walls of the two ends of the rotating shaft are respectively connected to the fixed plates, the middle of the rotating shaft is fixedly connected to the bracket, and the outer walls of the two sides of the bracket are provided with sliding grooves, and the slides are installed inside the sliding grooves; when the drone tilts to the left, the slide slides to the left accordingly. Since there is a tooth groove in the middle of the bottom of the slide, and the tooth groove is engaged with the driven gear inside the bracket, the driven gear rotates clockwise. When the driven gear rotates clockwise, it drives the linkage gear engaged with it to rotate counterclockwise, and the camera rotates together with the linkage gear. At this time, the camera is in a horizontal state relative to the tilted bracket. When the drone is in a horizontal state, the two sliding springs connected to the two sides of the slide return to their positions respectively, so that the camera remains horizontal, so that the camera can remain horizontal at any time according to the tilt state of the drone. The mechanical structure is used to keep the camera horizontal, and the mechanical structure is used to achieve the camera anti-shake effect, so as to prevent the use of electronic systems from causing difficult and time-consuming troubleshooting in the later stage, and no special tools are required.

[0015] (2) The front and rear leveling mechanism of the present invention is to connect fixed U-shaped frames to the outer walls of both sides of the bracket. When the UAV tilts forward, the fixed U-shaped frame connected to the front outer wall of the bracket pushes the front rotating plate, and the fixed U-shaped frame connected to the rear outer wall of the bracket pulls the rear rotating plate, so that the front moving block and the rear moving block move together along the front moving groove and the rear moving groove respectively, so that the camera can remain horizontal when the UAV tilts forward. Based on the same principle, the camera can also remain horizontal when the UAV tilts backward. When used with the slide board, the camera can remain horizontal no matter what tilt state the UAV is in, thereby ensuring the stability of shooting. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the structure of the anti-shake device of the utility model after disassembly;

[0018] Figure 3 This is a schematic structural diagram of the anti-shake device in the present invention;

[0019] Figure 4 This is a schematic diagram of the internal structure of the anti-shake device in the present invention;

[0020] Figure 5 This is a longitudinal cutaway view of the entire utility model;

[0021] Figure 6 for Figure 5 A magnified schematic diagram of the structure in the middle.

[0022] Legend: 1. Drone body; 2. Baffle; 3. Rotating shaft; 4. Fixed plate; 5. Sliding spring; 6. Slide plate; 7. Bracket; 8. Slide groove; 9. Driven gear; 10. Linkage gear; 11. Camera; 12. Limiting groove; 13. Limiting bar; 14. Fixed U-shaped frame; 15. Rotating plate; 16. Moving groove; 17. Moving spring; 18. Moving block; 19. Moving U-shaped frame; 20. Support foot; 21. Spring hole; 22. Buffer spring; 23. Buffer rod; 24. Buffer pad. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. Figures 1 to 6 The accompanying drawings are simplified examples and are intended solely to clearly and concisely illustrate the embodiments of the present invention. The technical solutions presented in the accompanying drawings are specific examples of the present invention and are not intended to limit the scope of the claimed invention. All other examples derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0024] In the description of the present utility model, it should be understood that the terms "upper", "lower", "inside", "outside", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the utility model product is usually placed when in use, or are directions or positional relationships commonly understood by those skilled in the art. These directions or positional relationships are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present utility model.

[0025] The embodiment provides an aerial survey drone with a camera anti-shake device, such as Figure 1 As shown, it includes a drone body 1 and a camera 11 arranged at the bottom of the drone body 1. A plurality of supporting legs 20 are fixedly connected to both sides of the drone body 1. A spring hole 21 is opened at the bottom of each supporting leg 20. A buffer spring 22 is fixedly connected to the top of the inner wall of the spring hole 21. A buffer rod 23 is fixedly connected to the bottom of the buffer spring 22. A buffer pad 24 is fixedly connected to the bottom of the buffer rod 23. The drone also includes a camera anti-shake device.

[0026] The embodiment provides an aerial survey drone with a camera anti-shake device, such as Figures 1 to 6As shown, the camera anti-shake device includes a bracket 7, a rotating shaft 3 and a leveling mechanism. The bracket 7 is installed at the bottom of the drone body 1, and the camera 11 is installed at the bottom of the bracket 7; baffles 2 are symmetrically installed on both sides of the bottom edge of the drone body 1, the rotating shaft 3 is fixed through the bracket 7, and its two ends are respectively rotatably connected to the baffle 2, the bracket 7 is provided with a slide 8, and the slide 8 is parallel to the bottom of the rotating shaft 3; the leveling mechanism includes a slide plate 6 placed parallel to the bottom of the rotating shaft 3, a driven gear 9 rotatably mounted on the inner wall of the bracket 7 and a linkage gear 10 mounted on the camera 11, the slide plate 6 is slidably mounted in the slide groove 8 of the bracket 7, a tooth groove is provided at the bottom of the slide plate 6, the driven gear 9 is located between the slide plate 6 and the camera 11, the upper part is meshed with the rack at the bottom of the slide plate 6, and the lower part is meshed with the linkage gear 10; fixed plates 4 are respectively provided at the parts near the two ends of the rotating shaft 3, and the two fixed plates 4 are symmetrically arranged on both sides of the bracket 7, and the two ends of the slide plate 6 are respectively connected to the fixed plate 4 by sliding springs 5. The racks of the linkage gear 10 are distributed over the upper two-thirds of the annular surface, and the camera 11 is connected to the one-third of the annular surface where the racks are not provided. The lower portion of the bracket 7 is provided with a hollow cavity that is connected to the chute 8 and has an open bottom. The camera 11 and the driven gear 9 are both mounted within the hollow cavity at the lower portion of the bracket 7.

[0027] When the drone tilts to the left, the skateboard 6 slides to the left accordingly. Since a tooth groove is provided in the middle of the bottom of the skateboard 6 and the tooth groove is engaged with the driven gear 9 inside the bracket 7, the driven gear 9 rotates clockwise. When the driven gear 9 rotates clockwise, it drives the linked gear 10 engaged therewith to rotate counterclockwise, and the camera 11 rotates together with the linked gear 10. At this time, the camera 11 is in a horizontal state relative to the tilted bracket 7. When the drone is in a horizontal state, the two sliding springs 5 ​​connected on both sides of the skateboard 6 return to their positions respectively, so that the camera 11 remains horizontal. Based on the same principle, when the drone tilts to the right, the camera 11 can also remain horizontal. In actual operation, to prevent excessive friction between the gears, lubricant can be applied between the slider and the gear to reduce friction. Furthermore, the gears are small, so significant friction is not present. When tilted, the slider's gravity can drive the gears to rotate. A limit slot 12 is provided at the top of the chute 8, communicating with the chute 8. A limit bar 13 is fixedly attached to the top of the slide 6, located within the limit slot 12. The limit bar 13 follows the slide 6 along the limit slot 12, ensuring smoother and more stable sliding. Furthermore, the limit bar 13 allows the slide 6 to be suspended from the bracket 7 without pressing on the driven gear 9, further reducing friction between the rack and the driven gear 9. The sliding springs 5 ​​on both sides primarily serve as limiters. Their elastic force is less than the weight of the slide 6 and does not affect its normal sliding. When the drone tilts, the sliding spring at one end of the slide 6 is in tension, while the sliding spring at the other end is in compression. When the drone is level, the sliding springs return to their original positions.

[0028] The embodiment provides an aerial survey drone with a camera anti-shake device, such as Figures 1 to 6As shown, the bracket 7 is symmetrically provided with stabilizing brackets on both sides perpendicular to the direction of the rotating shaft 3. Each stabilizing bracket includes a fixed U-shaped frame 14, a rotating plate 15, and a movable U-shaped frame 19. The fixed U-shaped frame 14 is fixedly mounted on the bracket 7. One end of the rotating plate 15 is rotatably connected to the fixed U-shaped frame 14, and the other end is rotatably connected to the movable U-shaped frame 19. A movable block 18 is fixedly connected to the top of the movable U-shaped frame 19. Two movable grooves 16 are correspondingly provided at the bottom of the drone body 1. The movable blocks 18 of the two sets of stabilizing brackets are slidably embedded in the corresponding movable grooves 16. One end of the movable block 18 is connected to the inner groove end surface of the movable groove 16 via a movable spring 17. When the drone tilts forward, the fixed U-shaped frame 14 connected to the front outer wall of the bracket 7 pushes the front rotating plate 15, and the fixed U-shaped frame 14 connected to the rear outer wall of the bracket 7 pulls the rear rotating plate 15, so that the front moving block 18 and the rear moving block 18 move together along the front moving groove 16 and the rear moving groove 16 respectively, so that the camera 11 remains horizontal when the drone tilts forward. By the same principle, when the drone tilts backward, the camera 11 can also remain horizontal. The inner walls of one side of the two moving grooves 16 are fixedly connected to a moving spring 17, and the other end of the moving spring 17 is fixedly connected to the outer wall of the moving block 18. When the drone is in a horizontal state, the moving spring 17 can also ensure that the bracket 7 is horizontal, thereby keeping the camera 11 horizontal.

[0029] The working process of the present invention is as follows: when the drone tilts to the left, the skateboard 6 slides to the left accordingly. Since a tooth groove is provided in the middle of the bottom of the skateboard 6, and the tooth groove is engaged with the driven gear 9 inside the bracket 7, the driven gear 9 rotates clockwise. When the driven gear 9 rotates clockwise, the linkage gear 10 engaged therewith is driven to rotate counterclockwise, and the camera 11 rotates together with the linkage gear 10. At this time, the camera 11 is in a horizontal state relative to the tilted bracket 7. When the drone is in a horizontal state, the two sliding springs 5 ​​connected on both sides of the skateboard 6 return to their positions respectively, so that the camera 11 remains horizontal. By the same principle, when the drone tilts to the right, the camera 11 can also remain horizontal. When the drone tilts forward, the fixed U-shaped frame 14 connected to the front outer wall of the bracket 7 pushes the front rotating plate 15, and the fixed U-shaped frame 14 connected to the rear outer wall of the bracket 7 pulls the rear rotating plate 15, so that the front moving block 18 and the rear moving block 18 move together along the front moving groove 16 and the rear moving groove 16 respectively, so that the camera 11 remains horizontal when the drone tilts forward. By the same principle, when the drone tilts backward, the camera 11 can also remain horizontal.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An aerial survey drone with a camera anti-shake device, comprising a drone body (1) and a camera (11) arranged at the bottom of the drone body (1), wherein a plurality of legs (20) are fixedly connected to both sides of the drone body (1), and characterized in that: The drone also includes a camera anti-shake device, which includes a bracket (7), a rotating shaft (3) and a leveling mechanism. The bracket (7) is installed at the bottom of the drone body (1), and the camera (11) is installed at the bottom of the bracket (7); baffles (2) are symmetrically installed on the two side edges of the bottom of the drone body (1); the rotating shaft (3) is fixedly passed through the bracket (7), and its two ends are respectively rotatably connected to the baffles (2); a slide groove (8) is opened on the bracket (7), and the slide groove (8) is placed parallel to the bottom of the rotating shaft (3); the leveling mechanism includes a slide plate (6) placed parallel to the bottom of the rotating shaft (3), a rotating shaft (3) and a leveling mechanism. A driven gear (9) is mounted on the inner wall of a bracket (7) and a linkage gear (10) is mounted on a camera (11); the slide plate (6) is slidably mounted in a slide groove (8) of the bracket (7); a tooth groove is provided at the bottom of the slide plate (6); the driven gear (9) is located between the slide plate (6) and the camera (11); the upper part is meshed with a rack at the bottom of the slide plate (6); and the lower part is meshed with the linkage gear (10); fixed plates (4) are respectively provided at the positions adjacent to the two ends of the rotating shaft (3); the two fixed plates (4) are symmetrically arranged on both sides of the bracket (7); and the two ends of the slide plate (6) are respectively connected to the fixed plates (4) through sliding springs (5).

2. The aerial survey UAV with a camera anti-shake device according to claim 1, characterized in that: The bracket (7) is symmetrically provided with stable brackets on both sides perpendicular to the direction of the rotating shaft (3), and each stable bracket comprises a fixed U-shaped frame (14), a rotating plate (15) and a movable U-shaped frame (19); the fixed U-shaped frame (14) is fixedly installed on the bracket (7); one end of the rotating plate (15) is rotatably connected to the fixed U-shaped frame (14), and the other end is rotatably connected to the movable U-shaped frame (19); a movable block (18) is fixedly connected to the top of the movable U-shaped frame (19); two movable grooves (16) are correspondingly provided at the bottom of the drone body (1), and the movable blocks (18) of the two sets of stable brackets are respectively slidably embedded in the corresponding movable grooves (16).

3. An aerial survey UAV with a camera anti-shake device according to claim 1 or 2, characterized in that: A limiting groove (12) is provided at the top of the slide groove (8), and the limiting groove (12) is communicated with the slide groove (8). The top of the slide plate (6) is fixedly connected to a limiting strip (13), and the limiting strip (13) is located inside the limiting groove (12).

4. The aerial survey UAV with a camera anti-shake device according to claim 1 or 2, characterized in that: A spring hole (21) is provided at the bottom of each support leg (20); a buffer spring (22) is fixedly connected to the top of the inner wall of the spring hole (21); a buffer rod (23) is fixedly connected to the bottom of the buffer spring (22); and a buffer pad (24) is fixedly connected to the bottom of the buffer rod (23).

5. The aerial survey UAV with a camera anti-shake device according to claim 1 or 2, characterized in that: The racks of the linkage gear (10) are distributed on the upper 2 / 3 of the annular surface, and the camera (11) is connected to the 1 / 3 of the annular surface where the racks are not provided on the linkage gear (10).

6. The aerial survey UAV with a camera anti-shake device according to claim 1 or 2, characterized in that: The lower part of the bracket (7) is provided with a hollow cavity which is connected to the slide groove (8) and has an open bottom surface. The camera (11) and the driven gear (9) are both installed in the hollow cavity in the lower part of the bracket (7).

7. The aerial survey UAV with a camera anti-shake device according to claim 1 or 2, characterized in that: The elastic force of the sliding spring (5) is smaller than the gravity of the sliding plate (6) and does not affect the normal sliding of the sliding plate (6).

8. The aerial survey UAV with a camera anti-shake device according to claim 2, characterized in that: One end of the moving block (18) is connected to the inner groove end surface of the moving groove (16) via a moving spring (17).

Images