Patent ID: 8720603

Claim:
Underwater drilling arrangement for making a bore in a bed of a water body, comprising a service platform which can be lowered for positioning on the bed of the water body, a drill drive which is arranged on the service platform, and a drill rod with drill head which can be rotatably driven via the drill drive, wherein the service platform comprises a guide tube, on the inner side of which at least one linear guide is arranged, along which at least a part of the drill drive is guided so that it can be moved axially, and the guide tube is held so that it can be adjusted and fixed in a mount of the service platform; and the drill drive comprises a drill drive upper part and a drill drive lower part which can be moved axially relative to each other and at least the drill drive lower part comprises at least an outwardly pointing guide element which cooperates for axially guiding with the at least one linear guide.