not displayed in fig2 the adjustment mechanism 10 is linked in such a way with the node component that the latter can be rotated swiveled and or moved by the adjustment mechanism with help of the adjustment mechanism 10 displayed in fig2 it is possible to rotate or swivel the node component 3 and the protection component 2 around a vertical axle 12 and a horizontal axle 13 for swiveling the protection component 2 in an unfolded state the adjustment mechanism 19 has a first worm gear 14 with a somewhat horizontally positioned threaded rod 15 the outer thread of which cogs with a cog wheel 16 on the vertical axle for the purpose of providing a better illustration of the first worm gear 14 the threaded rod in fig2 is displayed enlarged by a factor of 16 in comparison to cog wheel 16 the threaded rod 15 can be rotated on a horizontal axle 18 in the direction of the double arrow a using the first lug 17 which is indicated schematically additionally a vertical axle 19 is connected with the axle 18 of the threaded rod 15 via a bevel gear this connection can be made via one or more universal joints for example rotating the lug 17 causes a rotation of the node component 3 around the vertical axle 12 i.