An airborne device for a multispectral camera mounted on an unmanned aerial vehicle

Abstract

The present invention discloses an airborne device of a multi-spectral camera carried by an unmanned aerial vehicle, comprising a pod, a triangular mounting frame installed in the pod, a camera fixed in the triangular mounting frame, a top angle of the triangular mounting frame connected to the top of the pod through a top angle connecting mechanism, and two bottom angles of the triangular mounting frame connected to the bottom of the pod through a bottom angle connecting mechanism; the top angle connecting mechanism comprises a first rubber sleeve, a ball sleeve is fixed on the top of the first rubber sleeve, a ball head is connected through the bottom of the first rubber sleeve, the top of the ball head is movably connected to the ball sleeve, the bottom of the ball head is fixedly connected to the top angle of the triangular mounting frame, and an elastic support sheet is fixed to the inner wall of the first rubber sleeve; the bottom angle connecting mechanism comprises a second rubber sleeve, and a buffer spring is installed in the second rubber sleeve. The present invention can improve the deficiencies of the prior art and improve the buffering and filtering effect for external interference.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to an airborne device of a multi-spectral camera mounted on an unmanned aerial vehicle. Background Art

[0002] In recent years, with the rapid development of drone technology, using drones to collect images over large areas has become a trend. Since there are many interference factors such as speed changes and airflow disturbances during the flight of drones, which will directly affect the camera imaging quality, improving the buffering effect of the camera's onboard device against external interference has become a very important means to improve the camera's imaging quality. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an airborne device for an unmanned aerial vehicle-mounted multispectral camera, which can solve the deficiencies of the prior art and improve the buffering and filtering effect for external interference.

[0004] In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

[0005] An airborne device of an unmanned aerial vehicle multispectral camera comprises a pod, a triangular mounting frame is installed in the pod, a camera is fixed in the triangular mounting frame, the top angle of the triangular mounting frame is connected to the top of the pod through a top angle connecting mechanism, and two bottom angles of the triangular mounting frame are connected to the bottom of the pod through the bottom angle connecting mechanism; the top angle connecting mechanism comprises a first rubber sleeve, a ball sleeve is fixed to the top of the first rubber sleeve, a ball head is connected through the bottom of the first rubber sleeve, the top of the ball head is movably connected to the ball sleeve, the bottom of the ball head is fixedly connected to the top angle of the triangular mounting frame, and an elastic support sheet is fixed to the inner wall of the first rubber sleeve; the bottom angle connecting mechanism comprises a second rubber sleeve, and a buffer spring is installed in the second rubber sleeve.

[0006] Preferably, a rubber bracket is fixed to the side of the ball head, a slide groove is provided on the elastic support sheet, and the top of the rubber bracket is slidably inserted in the slide groove.

[0007] Preferably, the width of the slide groove gradually decreases from the bottom to the top of the slide groove, and a sliding block matching the slide groove is fixed on the top of the rubber bracket.

[0008] Preferably, an annular limiting ring is provided on the top of the ball head.

[0009] Preferably, the inner wall of the second rubber sleeve is provided with a limiting groove at the top, and a limiting ring is sleeved on the outer side of the buffer spring. The limiting ring is located in the limiting groove, and the limiting ring and the limiting groove are clearance-matched.

[0010] Preferably, a rigid bracket is fixed on the outside of the second rubber sleeve, a rubber pin inserted into the limiting groove is fixed on the top of the rigid bracket, and the rubber pin is in selective contact with the limiting ring.

[0011] The beneficial effect brought about by adopting the above technical solution is that the present invention improves the supporting stiffness of the support frame body by designing a triangular support frame. The three supporting points of the triangular support frame are respectively installed with connecting mechanisms, the top angle connecting mechanism is used to buffer lateral shaking and axial torsion, and the bottom angle connecting mechanism is used to buffer axial vibration. The rubber bracket can effectively reduce the torsion amplitude of the top angle connecting mechanism, and the matching structure of the slider and the slide groove can ensure the stable sliding matching of the rubber bracket and the slide groove. The annular limit ring can perform buffering and limiting when the top angle connecting mechanism has a large lateral swing. The matching relationship between the limit ring and the limit groove can reduce the radial swing of the buffer spring and improve the buffering effect of the buffer spring on axial vibration. When the buffer spring has a large radial swing, the rubber pin contacts the limit ring to avoid further radial swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view of a specific embodiment of the present invention.

[0013] Figure 2 It is a structural diagram of a vertex connection mechanism in a specific embodiment of the present invention.

[0014] Figure 3 yes Figure 2 Cross-sectional view along the AA direction.

[0015] Figure 4 It is a structural diagram of the bottom angle connection mechanism in a specific embodiment of the present invention.

[0016] Figure 5 It is a structural diagram of an annular limiting ring in a specific implementation manner of the present invention. DETAILED DESCRIPTION

[0017] Reference Figure 1-5A specific embodiment of the present invention includes a pod 1, wherein a triangular mounting frame 2 is installed in the pod 1, a camera is fixed in the triangular mounting frame 2, the top corner of the triangular mounting frame 2 is connected to the top of the pod 1 through a top corner connecting mechanism 3, and the two bottom corners of the triangular mounting frame 2 are connected to the bottom of the pod 1 through a bottom corner connecting mechanism 4; the top corner connecting mechanism 3 includes a first rubber sleeve 5, a ball sleeve 6 is fixed on the top of the first rubber sleeve 5, a ball head 7 is connected through the bottom of the first rubber sleeve 5, the top of the ball head 7 is movably connected to the ball sleeve 6, the bottom of the ball head 7 is fixedly connected to the top corner of the triangular mounting frame 2, and an elastic support sheet 8 is fixed to the inner wall of the first rubber sleeve 5; the bottom corner connecting mechanism 9 includes a second rubber sleeve 10, and a buffer spring 11 is installed in the second rubber sleeve 10. The triangular shape of the triangular support frame 2 can effectively improve the support stiffness of the support frame body. The three supporting points of the triangular support frame 2 are respectively installed with connecting mechanisms, the top corner connecting mechanism 3 is used to buffer lateral shaking and axial twisting, and the bottom corner connecting mechanism 4 is used to buffer axial vibration. A rubber bracket 12 is fixed on the side of the ball head 7, and a slide groove 13 is provided on the elastic support sheet 8. The top of the rubber bracket 12 is slidably inserted in the slide groove 13. The width of the slide groove 13 gradually decreases from the bottom to the top of the slide groove 13. A slider 14 matching the slide groove 13 is fixed on the top of the rubber bracket 12. The rubber bracket 12 can effectively reduce the torsion amplitude of the top angle connection mechanism 3. The matching structure of the slider 14 and the slide groove 13 can ensure the stable sliding match between the rubber bracket 12 and the slide groove 13. An annular limiting ring 15 is provided on the top of the ball head 7. The annular limiting ring 15 can be used for buffering and limiting when the top angle connection mechanism 3 swings horizontally by a large amplitude. A limiting groove 16 is provided on the top of the inner wall of the second rubber sleeve 10. A limiting ring 17 is sleeved on the outer side of the buffer spring 11. The limiting ring 17 is located in the limiting groove 16, and the limiting ring 17 is gap-matched with the limiting groove 16. A rigid bracket 18 is fixed to the outside of the second rubber sleeve 10, and a rubber pin 19 inserted into the limiting groove 16 is fixed to the top of the rigid bracket 18, and the rubber pin 19 selectively contacts the limiting ring 17. The matching relationship between the limiting ring 17 and the limiting groove 16 can reduce the radial swing of the buffer spring 11 and improve the buffering effect of the buffer spring 11 on the axial vibration. When the buffer spring 11 has a large radial swing, the rubber pin 19 contacts the limiting ring 17, thereby preventing further radial swing.

[0018] In addition, the annular stop ring 15 includes a plurality of annular protrusions 20, the height of the annular protrusions 20 gradually increases from the inside to the outside, transition portions 21 are provided on both sides of each annular protrusion 20, and a rubber buffer layer 9 is provided on the inner side of the annular stop ring 15. In the process of the annular stop ring 15 contacting the ball sleeve 6, the clearance fit between the ball sleeve 6 and two different annular stop rings 15 can achieve buffering at different positions, the transition portion 21 can reduce the vibration when the ball sleeve 6 contacts the annular protrusion 20, and the rubber buffer layer 9 can reduce the vibration generated by the ball head during the sliding contact between the rubber bracket 12 and the elastic support sheet 8.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An airborne device for a multispectral camera mounted on an unmanned aerial vehicle, comprising a pod (1), characterized in that: A triangular mounting frame (2) is installed in the pod (1), and the camera is fixed in the triangular mounting frame (2). The top angle of the triangular mounting frame (2) is connected to the top of the pod (1) through a top angle connecting mechanism (3), and the two bottom angles of the triangular mounting frame (2) are connected to the bottom of the pod (1) through a bottom angle connecting mechanism (4); the top angle connecting mechanism (3) comprises a first rubber sleeve (5), a ball sleeve (6) is fixed to the top of the first rubber sleeve (5), a ball head (7) is connected through the bottom of the first rubber sleeve (5), the top of the ball head (7) is movably connected to the ball sleeve (6), the bottom of the ball head (7) is fixedly connected to the top angle of the triangular mounting frame (2), and an elastic support sheet (8) is fixed to the inner wall of the first rubber sleeve (5); the bottom angle connecting mechanism (4) comprises a second rubber sleeve (10), and a buffer spring (11) is installed in the second rubber sleeve (10); A rubber bracket (12) is fixed on the side of the ball head (7), a slide groove (13) is provided on the elastic support sheet (8), and the top of the rubber bracket (12) is slidably inserted in the slide groove (13); The width of the slide groove (13) gradually decreases from the bottom to the top of the slide groove (13), and a sliding block (14) matching with the slide groove (13) is fixed on the top of the rubber bracket (12); An annular limiting ring (15) is arranged on the top of the ball head (7); A limiting groove (16) is provided at the top of the inner wall of the second rubber sleeve (10); a limiting ring (17) is sleeved on the outer side of the buffer spring (11); the limiting ring (17) is located in the limiting groove (16); and the limiting ring (17) and the limiting groove (16) are clearance-matched; A rigid bracket (18) is fixed on the outside of the second rubber sleeve (10), a rubber pin (19) inserted into the limiting groove (16) is fixed on the top of the rigid bracket (18), and the rubber pin (19) is in selective contact with the limiting ring (17).

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