Securing assembly for securing a tower to a wind turbine tower

1. A securing assembly ( 1 ) for securing an elongated support tower ( 2 ) to a wind turbine tower ( 3 ), the securing assembly ( 1 ) comprising:

a base part ( 1 a ) including:

a tower holding part ( 4 ),

a fixed part ( 5 ) fixedly connected to the tower holding part ( 4 ),

two arms ( 6 ), each arm comprising an inner part ( 6 a ) and an outer part ( 6 b ),

a rope ( 8 ) attached to the base part ( 1 a ) for at least partly surrounding the wind turbine tower ( 3 ),

a plate ( 6 c ) arranged at the outer part ( 6 b ) of each of the two arms ( 6 ), the plates ( 6 c ) being arranged such that they can adapt to the curvature of the wind turbine tower ( 3 ) and each comprising at least one rope sliding element ( 9 ), arranged to slidably hold the rope ( 8 ) and arranged along the plate for guiding the rope ( 8 ) around the wind turbine tower ( 3 ),

a rope tightening device ( 11 ) arranged on the base part ( 1 a ), wherein the rope is attached to the base part ( 1 a ) via the tightening device ( 11 ) at at least one end, and

the rope ( 8 ) being arranged via the rope sliding elements ( 9 ) of the plates ( 6 c ) such that when the rope ( 8 ) is tightened using the rope tightening device ( 11 ), the rope ( 8 ) presses the plates ( 6 c ) against the wind turbine tower ( 3 ).

2. The securing assembly ( 1 ) according to claim 1 , comprising:

a support beam ( 15 ) connected to the base part ( 1 a ), for bearing against the wind turbine tower ( 3 ).

3. The securing assembly ( 1 ) according to claim 2 , wherein the support beam ( 15 ) is adapted to move linearly such that it presses against the wind turbine tower ( 3 ).

4. The securing assembly ( 1 ) according to claim 1 , wherein at least one of the arms is movable relative to the other and the inner part ( 6 a ) of the least one moveable arm is rotatably attached to the tower holding part ( 4 ) or the fixed part ( 5 ).

5. The securing assembly ( 1 ) according to claim 4 , comprising:

a moving mechanism ( 7 ) adapted to move the at least one moveable arm such that the arms ( 6 ) can clamp the wind turbine tower ( 3 ).

6. The securing assembly ( 1 ) according to claim 5 , wherein the two arms ( 6 ) are each movable relative to each other, each inner part ( 6 a ) being rotatably attached to the tower holding part ( 4 ) or the fixed part ( 5 ) and the moving mechanism ( 7 ) being adapted to move each arm.

7. The securing assembly ( 1 ) according to claim 1 , wherein the rope sliding element ( 9 ) has an opening ( 9 a ) for receiving a rope ( 8 ).

8. The securing assembly ( 1 ) according to claim 1 , wherein the two arms ( 6 ) are telescopic arms ( 6 ), the inner part ( 6 a ) being a cover portion ( 6 a ) and the outer part ( 6 b ) being an extending portion ( 6 b ), and the extending portion ( 6 b ) is adapted to at least partly be withdrawn into the cover portion ( 6 a ) to reduce the length of the arms ( 6 ).

9. The securing assembly ( 1 ) according to claim 1 , wherein the plates ( 6 c ) comprise a friction material ( 10 ) with a friction coefficient larger than 0.30 on a side facing the plate ( 6 c ) on another one of the arms.

10. The securing assembly ( 1 ) according to claim 1 , wherein the tightening device ( 11 ) comprises a sliding part ( 11 a ) where an end of the rope ( 8 ) is fastened, the sliding part ( 11 a ) being slidable to adjust the tension in the rope ( 8 ).

11. The securing assembly ( 1 ) according to claim 4 , comprising a movement locking mechanism ( 12 ) for each arm that is movable relative to the other, wherein the arms ( 6 ) are prevented from moving when the movement locking mechanisms ( 12 ) are actuated.

12. The securing assembly ( 1 ) according to claim 8 , comprising two mechanical locking mechanisms ( 13 ), wherein the extending portions ( 6 b ) are prevented from moving relative the cover portions ( 6 a ) when the two mechanical locking mechanisms ( 13 ) are actuated.

13. The securing assembly ( 1 ) according to claim 1 , comprising a rope locking mechanism ( 11 c ) for the tightening device ( 11 ), which locks the tightening device ( 11 ) from moving when actuated.

14. The securing assembly ( 1 ) according to claim 1 , wherein the tower holding part ( 4 ) is adapted to at least partly surround the elongated support tower ( 2 ) and the tower holding part ( 4 ) having a height of at least 0.5 m.