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A device for handling a rotor blade of a wind turbine is provided. The device includes a frame which defines an inner space for at least partially accommodating the rotor blade. The device further includes a blade support which is arranged in the inner space and mounted to the frame, and a first lev

A device for handling a rotor blade of a wind turbine is provided. The device includes a frame which defines an inner space for at least partially accommodating the rotor blade. The device further includes a blade support which is arranged in the inner space and mounted to the frame, and a first lever arm. The first lever arm is pivotably mounted to the frame and includes a retaining end arranged in the inner space and an actuator end which is movable to rotate the first lever arm so that the rotor blade is retained between the blade support and the retaining end.

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1. A device for handling a rotor blade of a wind turbine, the device comprising: a frame defining an inner space for at least partially accommodating the rotor blade;a blade support arranged in the inner space and mounted to the frame, the blade support comprising at least one support element compri

1. A device for handling a rotor blade of a wind turbine, the device comprising: a frame defining an inner space for at least partially accommodating the rotor blade;a blade support arranged in the inner space and mounted to the frame, the blade support comprising at least one support element comprising a moveable joint; anda first lever arm pivotably mounted to the frame, the first lever arm comprising a retaining end arranged in the inner space and an actuator end which is movable to rotate the first lever arm so that the rotor blade is retained between the blade support and the retaining end. 2. The device of claim 1, further comprising a holding unit connectable to a lifting tool, a first actuator, and a first flexible coupling member connecting the holding unit and the first actuator, wherein the first actuator is configured to change a length of the first flexible coupling member between the holding unit and the first actuator. 3. The device of claim 2, wherein the first flexible coupling member comprises a first portion and a second portion, the first portion connecting the holding unit and the first actuator, and the second portion having a fixed length and connecting the holding unit and the actuator end, and wherein the first actuator is configured to change a length of the first portion. 4. The device of claim 2, further comprising a second flexible coupling member of a fixed length connecting the holding unit and the actuator end. 5. The device of claim 4, further comprising a third flexible coupling member, a second actuator, and a second lever arm pivotably mounted to the frame, the second lever arm comprising a retaining end arranged in the inner space and an actuator end connected with the holding unit, wherein the second actuator is configured to change a length of the third flexible coupling member connecting the second actuator and the actuator end of the second lever arm via the holding unit or to change a length of a portion of the third flexible coupling member connecting the second actuator and the holding unit. 6. The device of claim 5, wherein at least one of the first flexible coupling member, the second flexible coupling member, and the third flexible coupling member is selected from a group consisting of a line, a rope, a cable and a chain. 7. The device of claim 1, further comprising at least one of: a first pad mounted to the retaining end; andat least a second pad mounted to the frame and forming at least a part of the blade support. 8. The device of claim 1, further comprising at least one of: a wind shield mounted to the frame;a rail arranged on the frame; andat least one wheel arranged below the frame. 9. A lifting system for handling a rotor blade of a wind turbine, the lifting system comprising: a lifting tool; anda handling device comprising: a frame defining an inner space for at least partially accommodating the rotor blade;a blade support mounted to the frame, the blade support comprising at least one support element comprising a moveable joint; anda first lever arm pivotably mounted to the frame, the first lever arm comprising a clamping end arranged in the inner space and an actuator end connected to the lifting tool so that the rotor blade is clamped between the blade support and the clamping end when the lifting tool lifts the handling device. 10. The lifting system of claim 9, further comprising a holding unit, an actuator mounted to the frame, a flexible coupling member comprising a first portion and a second portion, the first portion connecting the holding unit and the actuator, the second portion having a fixed length and connecting the actuator end and the holding unit, wherein the actuator is configured to change a length of the first portion. 11. The lifting system of claim 9, further comprising a holding unit, a first actuator mounted to the frame, a first flexible coupling member and a second flexible coupling member, the first flexible coupling member connecting the holding unit and the first actuator, the second flexible coupling member having a fixed length and connecting the actuator end and the holding unit, wherein the first actuator is configured to change a length of the first flexible coupling member. 12. The lifting system of claim 11, wherein the lifting system is configured to rotate the handling device about an axis lying in a vertical plane crossing the frame by changing the length of the first flexible coupling member with the first actuator. 13. The lifting system of claim 12, wherein the handling device further comprises a second actuator mounted to the frame and a second lever arm pivotably mounted to the frame, the second lever arm comprising a clamping end arranged in the inner space and an actuator end connected to the holding unit with a third flexible coupling member which also connects the holding unit and the second actuator, wherein the second actuator is configured to change a length of the third flexible coupling member. 14. The lifting system of claim 13, wherein the lifting system is configured to rotate the axis by changing the length of the third flexible coupling member with the second actuator. 15. The lifting system of claim 9, further comprising a wind shield mounted to the frame. 16. A device for handling a rotor blade of a wind turbine, the device comprising: a frame defining an inner space for at least partially accommodating the rotor blade;a blade support arranged in the inner space and mounted to the frame;a wind shield mounted to the frame; anda first lever arm pivotably mounted to the frame, the first lever arm comprising a retaining end arranged in the inner space and an actuator end which is movable to rotate the first lever arm so that the rotor blade is retained between the blade support and the retaining end. 17. The device of claim 16, further comprising a holding unit connectable to a lifting tool, a first actuator, and a first flexible coupling member connecting the holding unit and the first actuator, wherein the first actuator is configured to change a length of the first flexible coupling member between the holding unit and the first actuator. 18. The device of claim 17, wherein the first flexible coupling member comprises a first portion and a second portion, the first portion connecting the holding unit and the first actuator, and the second portion having a fixed length and connecting the holding unit and the actuator end, and wherein the first actuator is configured to change a length of the first portion. 19. The device of claim 17, further comprising a second flexible coupling member of a fixed length connecting the holding unit and the actuator end. 20. The device of claim 19, further comprising a third flexible coupling member, a second actuator, and a second lever arm pivotably mounted to the frame, the second lever arm comprising a retaining end arranged in the inner space and an actuator end connected with the holding unit, wherein the second actuator is configured to change a length of the third flexible coupling member connecting the second actuator and the actuator end of the second lever arm via the holding unit or to change a length of a portion of the third flexible coupling member connecting the second actuator and the holding unit.