Abstract: A rotating apparatus includes a rotating assembly and a position-limiting assembly. The rotating assembly includes a driving unit and at least one rotating component. The driving unit is adapted to drive the rotating component to rotate with a first axis. The position-limiting assembly includes a position-limiting component, at least one first column, and a buckling component. The position-limiting assembly is disposed on the rotating assembly and is adapted to limit a position of the rotating component. The first column is connected to the position-limiting component. The position-limiting component is located between the rotating component and the buckling component and is able to move along the first axis. The buckling component is movably disposed on the position-limiting component and has at least one buckling portion. The buckling portion is adapted to be buckled to the first column or move away from the first column.

Abstract: A charge device for a drone includes a base and a covering mechanism. The base has a charge portion. The covering mechanism includes two covers, two first position-limiting components and two second position-limiting components. The two covers are movably disposed on the base. The covers are adapted to move toward each other to become a closed state and cover the charge portion, and the covers are adapted to move away from each other to become an expanded state and expose the charge portion. The first position-limiting components are connected to the covers respectively. Each of the second position-limiting components is connected between the covers. When the covers are in the closed state, the first position-limiting components and the second position-limiting components are located above the charge portion. When the covers are in the expanded state, the first position-limiting components and the second position-limiting components are away from the charge portion.

Abstract: A charge device for a drone includes a base and a covering mechanism. The base has a charge portion. The covering mechanism includes two covers, two first position-limiting components and two second position-limiting components. The two covers are movably disposed on the base. The covers are adapted to move toward each other to become a closed state and cover the charge portion, and the covers are adapted to move away from each other to become an expanded state and expose the charge portion. The first position-limiting components are connected to the covers respectively. Each of the second position-limiting components is connected between the covers. When the covers are in the closed state, the first position-limiting components and the second position-limiting components are located above the charge portion. When the covers are in the expanded state, the first position-limiting components and the second position-limiting components are away from the charge portion.

Abstract: A flight device includes a device body with a surface, a plurality of arm structures disposed in the device body and a plurality of rotor modules disposed to the arm structures respectively. Each arm structure includes a fixing base, a second screw element, a connecting unit, a rod body and a position-limiting element. The fixing base is disposed in the device body and includes a first screw element having a first screw part. The second screw element has a second screw part matched with the first screw part. The connecting unit drills through the second screw element. The connecting unit is locked to the fixing base by screwing the first and second screw parts with each other. The rod body drills through the connecting unit. The position-limiting element is disposed between the second screw element and the connecting unit. The position-limiting element abuts against the second screw element.

Abstract: A trailer is provided for a helicopter. The trailer includes a chassis, at least two lifters provided on the chassis, at least two drivers provided on the chassis and connected to the lifters, at least two locks for locking the lifters in an upper position and a connector for connecting the chassis to a vehicle.

Abstract: A cover structure, adapted for mounting on a housing that is formed with an opening and a connection base having a plugging end exposing by the opening, comprising: a frame, formed with a first end and a second end that are arranged opposite to each other with respect to the radial of a coupling position where the frame is coupled to the housing through a pivot axis of two pivot blocks in a direction parallel to a first axis direction and enabling the first end to expose by the opening; and an elastic element, disposed inside the housing for providing an elastic force to the frame, for enabling the first end and the second end to move relative to each other centering the coupling position; wherein an accommodation space is formed between the frame and the connection base so as to be used for receiving a plug of a connector.

Abstract: A cover structure, adapted for mounting on a housing that is formed with an opening and a connection base having a plugging end exposing by the opening, comprising: a frame, formed with a first end and a second end that are arranged opposite to each other with respect to the radial of a coupling position where the frame is coupled to the housing through a pivot axis of two pivot blocks in a direction parallel to a first axis direction and enabling the first end to expose by the opening; and an elastic element, disposed inside the housing for providing an elastic force to the frame, for enabling the first end and the second end to move relative to each other centering the coupling position; wherein an accommodation space is formed between the frame and the connection base so as to be used for receiving a plug of a connector.

Abstract: A trailer is provided for a helicopter. The trailer includes a chassis, at least two lifters provided on the chassis, at least two drivers provided on the chassis and connected to the lifters, at least two locks for locking the lifters in an upper position and a connector for connecting the chassis to a vehicle.