A stabilizing holder for aerial photography of a drone

Abstract

The utility model discloses a kind of unmanned aerial vehicle aerial photography is used to stabilize tripod head, including installation seat and inclination sensor being installed on unmanned aerial vehicle fuselage, support boom is rotatably connected on installation seat, the both ends of installation seat are respectively fixed with the first voice coil motor and the second voice coil motor of synchronous work, the first voice coil motor and the second voice coil motor are connected by controller with inclination sensor, the output end of the first voice coil motor and the output end of the second voice coil motor are respectively with the movable joint of support boom both sides, the output end of support boom is equipped with the clamping portion for fixing different size camera. The utility model has the beneficial effect that the installation and fixation of different size camera can be flexibly adapted, and after camera installation and fixation, the inclination angle of unmanned aerial vehicle fuselage can be adjusted to keep horizontal shooting, avoid camera with unmanned aerial vehicle fuselage inclination influence shooting, improve use flexibility and shooting stability.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and more specifically, to a stabilized gimbal for UAV aerial photography. Background Technology

[0002] Drone aerial photography has been widely used in surveying, inspection, and photography. The gimbal, mounted on the drone's fuselage, is a core component of the drone. Its function is to isolate the drone from flight vibrations and attitude changes, keeping the camera stable and thus obtaining clear and stable images or videos.

[0003] Application number 202222878838.3 discloses a stabilized gimbal for drone aerial photography, including a drone body. A connecting base is located at the bottom of the drone body, and a stabilizing plate is connected to the bottom of the connecting base via fastening bolts. A support rod is located at the bottom of the stabilizing plate, and a support plate is located at the bottom end of the support rod. Limiting plates are located on both sides of the top of the support plate, and a camera is mounted between the two limiting plates. The camera and the limiting plates are detachably connected via fastening components. A buffer component for protecting the camera is located at the bottom of the support plate. The advantages of this invention are: connecting the camera and the limiting plates via fastening components facilitates the installation and removal of the camera, thereby facilitating camera maintenance and replacement; and the buffer component at the bottom of the support plate reduces the impact on the camera when the drone lands.

[0004] However, existing technologies cannot flexibly adapt to the installation and fixation of cameras of different sizes, and after the camera is fixed, it cannot be adjusted according to the tilt angle of the drone body to keep the camera level for shooting. This causes the camera to tilt with the drone body, affecting the shooting and resulting in poor flexibility of use. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a stable gimbal for drone aerial photography.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A stabilized gimbal for drone aerial photography includes a mounting base and a tilt sensor mounted on the drone body. A support rod is rotatably connected to the mounting base. A first voice coil motor and a second voice coil motor, operating synchronously, are fixed to opposite ends of the mounting base. The first and second voice coil motors are connected to the tilt sensor via a controller. The output ends of the first and second voice coil motors are movably connected to both sides of the support rod. The output end of the support rod is equipped with a clamping part for fixing cameras of different sizes. The clamping part includes a protective shell, two clamping plates, two fixing ropes, two winding ropes, and two winding rods. The protective shell covers... The device includes a clamping chamber with two clamping plates positioned opposite each other. One clamping plate is fixed inside the clamping chamber, while the other clamping plate moves within it. The two clamping plates work together to hold the camera within the clamping space. Each clamping plate has four positioning holes. One fixing rope passes through two positioning holes in each of the two clamping plates and is fixedly connected to one end of a winding rope. Another fixing rope passes through the other two positioning holes in each of the two clamping plates and is fixedly connected to one end of another winding rope. The other ends of the two winding ropes are fixed to two winding rods, and the other ends of the two winding ropes are wound around the two winding rods. The two winding rods are detachably connected to the protective housing.

[0008] A further configuration is provided, wherein a connecting block is installed at the output end of the first voice coil motor and the output end of the second voice coil motor, and a connecting groove is opened on both sides of the support rod, and the two connecting blocks move within the two connecting grooves respectively.

[0009] A further configuration is provided, wherein an elastic rubber block is installed on the clamp plate to abut against the camera surface.

[0010] Further configured, the protective shell is fixed with a mounting plate corresponding to the winding rod, the mounting plate includes two fixing holes, one end of the two winding rods is threaded to the two fixing holes respectively, and the other end of the two winding rods is fixed with a limit plate.

[0011] A further configuration is provided, wherein one end of the support rod is fixed with a C-shaped rod, and the two ends of the C-shaped rod are respectively rotatably connected to the front and rear ends of the mounting base via bearings.

[0012] Further configured, the bottom of the connecting block is arc-shaped.

[0013] By adopting the above technical solution, the beneficial effects of this utility model are as follows: it can flexibly adapt to the installation and fixing of cameras of different sizes, and after the camera is installed and fixed, it can adjust the camera according to the tilt angle of the drone body to keep it level for shooting, avoiding the camera from affecting the shooting due to the tilt of the drone body, thus improving the flexibility of use and the stability of shooting. Attached Figure Description

[0014] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the structure for adjusting the solenoid and fixing the screw.

[0016] Figure 3 This is a schematic diagram of the structure in which the connecting block and the connecting groove mate.

[0017] Figure 4 This is a schematic diagram of the C-shaped rod and the mounting base mating structure.

[0018] In the diagram: 1. Mounting base; 2. Support rod; 3. First voice coil motor; 4. Second voice coil motor; 100. Clamping part; 5. Protective shell; 6. Clamping plate; 7. Fixing rope; 8. Winding rope; 9. Winding rod; 10. Clamping chamber; 11. Positioning hole; 12. Connecting block; 13. Connecting groove; 14. Elastic rubber block; 15. Mounting plate; 16. Fixing hole; 17. Limiting plate; 18. C-shaped rod. Detailed Implementation

[0019] Reference Figures 1 to 4 The embodiments of this utility model will be further described below.

[0020] A stabilized gimbal for drone aerial photography includes a mounting base 1 and a tilt sensor mounted on the drone body. The tilt sensor is installed near the center of gravity of the drone body. The mounting base 1 is fixed to the drone body with bolts. A support rod 2 is rotatably connected to the mounting base 1. A C-shaped rod 18 is fixed to one end of the support rod 2. The two ends of the C-shaped rod 18 are rotatably connected to the front and rear ends of the mounting base 1 through bearings, so as to realize the rotatable connection between the support rod 2 and the mounting base 1. A first voice coil motor 3 and a second voice coil motor 4 that work synchronously are fixed to the two ends of the mounting base 1, respectively. The synchronous operation of the first voice coil motor 3 and the second voice coil motor 4 can be achieved by a controller (such as by adding a synchronous control module to the controller), which is a mature existing technology and will not be described in detail. The first voice coil motor 3 and the second voice coil motor 4 are connected to the tilt sensor through the controller. The controller controls the first voice coil motor 3 and the second voice coil motor 4 to extend and retract synchronously in opposite directions according to the tilt angle of the drone body detected by the tilt sensor.

[0021] A connecting block 12 is installed at the output end of the first voice coil motor 3 and the output end of the second voice coil motor 4. A connecting groove 13 is opened on both sides of the support rod 2. The two connecting blocks 12 move in the two connecting grooves 13 respectively. The connecting blocks 12 will not disengage from the connecting grooves 13 when they move in the corresponding connecting grooves 13. The bottom of the connecting block 12 is arc-shaped to facilitate sliding in the connecting grooves 13 and reduce friction, so as to realize the movable connection between the output end of the first voice coil motor 3 and the output end of the second voice coil motor 4 and the two sides of the support rod 2 respectively. The first voice coil motor 3 and the second voice coil motor 4 are linear voice coil motors.

[0022] The output end of the support rod 2 is provided with a clamping part 100 for fixing cameras of different sizes. The clamping part 100 includes a protective shell 5, two clamping plates 6, two fixing ropes 7, two winding ropes 8, and two winding rods 9. The protective shell 5 includes a clamping chamber 10. The two clamping plates 6 are arranged opposite each other. One clamping plate 6 is fixed in the clamping chamber 10, and the other clamping plate 6 is movable in the clamping chamber 10. The two clamping plates 6 cooperate to fix the camera in the clamping space. Each clamping plate 6 has four positioning holes 11. The two ends of a fixing rope 7 pass through two positioning holes 11 of the two clamping plates 6 respectively and are connected to a winding rod 9. One end of the winding rope 8 is fixedly connected, and the two ends of the other fixed rope 7 pass through the other two positioning holes 11 of the two clamps 6 and are fixedly connected to one end of the other winding rope 8. The other ends of the two winding ropes 8 pass through the two through holes on the protective shell 5 and are fixed to the two winding rods 9. The other ends of the two winding ropes 8 are respectively wrapped around the two winding rods 9. The protective shell 5 is fixed with a mounting plate 15 corresponding to the winding rods 9. The mounting plate 15 includes two fixing holes 16. One end of the two winding rods 9 is threaded to the two fixing holes 16. The other end of the two winding rods 9 is fixed with a limit plate 17.

[0023] Working principle: The protective housing 5 has a clamping chamber 10 inside, which is used to hold cameras of different sizes. The camera is placed into the clamping chamber 10, and the distance between the two clamping plates 6 is adjusted to fit the camera to be fixed, so that both sides of the camera contact the two clamping plates 6 respectively. One clamping plate 6 is fixed in the clamping chamber 10, while the other clamping plate 6 can move in the clamping chamber 10. By rotating the winding rod 9, the winding rope 8 is wound around the winding rod 9, and the tightness of the fixing rope 7 can be adjusted. This tightens the fixing rope 7, bringing the other clamping plate 6 that moves in the clamping chamber 10 closer to the clamping plate 6 fixed in the clamping chamber 10. In this way, the two clamping plates 6 cooperate to clamp and fix the camera in the clamping chamber 10, thus achieving the fixation of cameras of different sizes. One end of the winding rod 9 is threaded to the fixing hole 16 of the mounting plate 15 to secure the tightened fixing rope 7. When one end of the winding rod 9 rotates and is threaded to the fixing hole 16 to fix it to the mounting plate 15, the fixing rope 7 is further tightened under the action of the rotation of the winding rod 9, which helps to fix the camera between the two clamps 6 more firmly, so as to maintain the state of the two clamps 6 tightening and fixing the camera. The other end is fixed with a limit plate 17, which can prevent the winding rope 8 from loosening or falling off the winding rod 9, and ensure that the adjustment of the fixing rope 7 is stable and reliable.

[0024] A tilt sensor on the drone's fuselage detects the drone's tilt angle in real time. This detected tilt angle information is then transmitted to the controller. Based on the tilt angle feedback from the tilt sensor, the controller controls the extension and retraction of the first voice coil motor 3 and the second voice coil motor 4 to maintain the camera's horizontal shooting position.

[0025] When the tilt sensor detects that the drone body is tilted towards the first voice coil motor 3, the controller, based on the signal from the tilt sensor, controls the output end of the first voice coil motor 3 to shorten and the output end of the second voice coil motor 4 to extend. This, in conjunction with the support rod 2 being rotatably connected to the mounting base 1 via the C-shaped rod 18 and the connecting block 12 sliding within the connecting groove 13, adjusts the relative position between the support rod 2 and the mounting base 1. This returns the support rod 2 and its clamping part 100 to a perpendicular position to the ground, thus ensuring that the camera fixed by the clamping part 100 remains in a horizontal shooting position.

[0026] When the tilt sensor detects that the drone body is tilted towards the second voice coil motor 4, the controller controls the output end of the first voice coil motor 3 to extend and the output end of the second voice coil motor 4 to shorten based on the signal from the tilt sensor. This, combined with the support rod 2 being rotatably connected to the mounting base 1 via the C-shaped rod 18 and the connecting block 12 sliding within the connecting groove 13, adjusts the relative position between the support rod 2 and the mounting base 1. The support rod 2 and its clamping part 100 return to a perpendicular state to the ground, thus keeping the camera fixed to the clamping part 100 in a horizontal shooting position. This prevents the camera from being affected by the drone body tilting, improving shooting stability. After the extension and retraction of the first and second voice coil motors 3 and 4, the output ends of the first and second voice coil motors 3 and 4 work together to clamp and fix the support rod 2 from both sides, maintaining the stability of the adjusted support rod 2.

[0027] The connection block 12 and the connection slot 13 facilitate the movement of the output ends of the first voice coil motor 3 and the second voice coil motor 4 on the support rod 2, thereby making it easier for the first voice coil motor 3 and the second voice coil motor 4 to smoothly push the support rod to adjust them.

[0028] The clamping plate 6 is equipped with an elastic rubber block 14 that contacts the camera surface. When the clamping plate 6 clamps the camera, the elastic rubber block 14 can contact the camera surface, so that the elastic rubber block 14 has a certain elastic deformation space when subjected to clamping force. This elastic deformation can better fit the camera surface during the clamping process, increase the stability of clamping, and at the same time prevent the clamping plate 6 from directly contacting the camera and causing damage to the camera surface.

[0029] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" 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, 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.

[0031] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any ordinary changes and substitutions made by those skilled in the art within the scope of the technical solution of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stabilized gimbal for drone aerial photography, comprising a mounting base (1) installed on the drone fuselage and a tilt sensor, characterized in that, A support rod (2) is rotatably connected to the mounting base (1). A first voice coil motor (3) and a second voice coil motor (4) that work synchronously are fixed at both ends of the mounting base (1). The first voice coil motor (3) and the second voice coil motor (4) are connected to the tilt sensor through a controller. The output ends of the first voice coil motor (3) and the second voice coil motor (4) are movably connected to both sides of the support rod (2). The output end of the support rod (2) is provided with a clamping part (100) for fixing cameras of different sizes. The clamping part (100) includes a protective shell (5), two clamping plates (6), two fixing ropes (7), two winding ropes (8), and two winding rods (9). The protective shell (5) includes a clamping chamber (10). The two clamping plates (6) are arranged opposite to each other. One clamping plate (6) is fixed in the clamping chamber (10), and the other clamping plate (6) moves in the clamping chamber (10). The two clamping plates (6) cooperate to fix the camera in the clamping space. Each has four positioning holes (11). One fixed rope (7) passes through two positioning holes (11) of two clamps (6) and is fixedly connected to one end of a winding rope (8). The other fixed rope (7) passes through two other positioning holes (11) of two clamps (6) and is fixedly connected to one end of another winding rope (8). The other ends of the two winding ropes (8) are fixed on two winding rods (9) respectively, and the other ends of the two winding ropes (8) are wrapped around the two winding rods (9) respectively. The two winding rods (9) are disassembled and connected to the protective shell (5).

2. The stabilized gimbal for drone aerial photography according to claim 1, characterized in that, A connecting block (12) is installed at the output end of the first voice coil motor (3) and the output end of the second voice coil motor (4). A connecting groove (13) is opened on both sides of the support rod (2). The two connecting blocks (12) move in the two connecting grooves (13) respectively.

3. A stabilized gimbal for drone aerial photography according to claim 2, characterized in that, An elastic rubber block (14) that contacts the camera surface is installed on the clamp (6).

4. A stabilized gimbal for drone aerial photography according to claim 3, characterized in that, The protective shell (5) is fixed with an mounting plate (15) corresponding to the winding rod (9). The mounting plate (15) includes two fixing holes (16). One end of each winding rod (9) is threaded onto the two fixing holes (16), and the other end of each winding rod (9) is fixed with a limit plate (17).

5. A stabilized gimbal for drone aerial photography according to claim 4, characterized in that, One end of the support rod (2) is fixed with a C-shaped rod (18), and the two ends of the C-shaped rod (18) are respectively rotatably connected to the front and rear ends of the mounting base (1) through bearings.

6. A stabilized gimbal for drone aerial photography according to claim 5, characterized in that, The bottom of the connecting block (12) is arc-shaped.

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