Orientation adjustment device for airborne holder of small aerial unmanned aerial vehicle

The invention discloses an orientation adjustment device for an airborne holder of a small aerial unmanned aerial vehicle. The orientation adjustment device includes a lower support plate, a pitchingsub-mechanism, a rotary fine-adjustment mechanism, a fixing block, two weapon clamping plates, and two side support plates; the lower support plate is T-shaped; the rotary fine-adjustment mechanism isarranged on a top surface of the lower support plate; the two side support plates are symmetrically fixed on both sides of a bottom surface of the lower support plate in parallel; the pitching sub-mechanism is arranged on any one side support plate; and two weapon clamping plates are arranged in parallel and are used for clamping a weapon; one weapon clamping plate is fixedly connected to the pitching sub-mechanism, and the other weapon clamping plate is fixedly connected to the fixing block; and the fixing block is rotatably connected to the other side supporting plate. The invention can complete precise adjustment o