Sleeve arrangement

Drill rig comprising a sleeve arrangement for a drill rig especially adapted for damping sound and sealing to the ground, said drill rig comprising a feed beam (4) having a drill end (41) and a rear end (42), said feed beam (4) comprising a drill string (63) and a first and a second part (411, 412) near the drill end (41), the first part (411) being fixed in relation to the feed beam (4), and the second part (412) being movable in relation to the feed beam (4) in a longitudinal direction along the drill string (63), characterized in that a first flexible sleeve element (100) is attached to the first part (411), and a second flexible sleeve element (200) is attached to the second part (412), the second part (412) is adapted to move inside the first flexible sleeve element (100) and the first flexible sleeve element (100) is adapted to at least partly overlap the second flexible sleeve element (200), and the second flexible sleeve element (200) is capable of assuming an upper and a lower position, as well as all positions therebetween, thereby enabling inspection of the drill string (63) as well as enabling an adjustable connection to the ground surface.