Abstract: A device intended to feed a gaseous high-pressure fluid to a platform supported on a frame on which is located a pressure source, said device comprising a rotating joint unit including two fluid conduct members mounted in relative rotational relationship to said platform along the geometrical axis around which said platform is rotating, one of said members being connected to fittings usable for feeding said fluid and located on said platform. The other member is intended to feed said pressure source, the fluid conduct member which is intended, in the joint unit, to be connected to said pressure source is connected to the latter by a releasable connecting member. The coupling of said member depends on the fluid feeding required by the user or by said fitting usable for the fluid feeding and mounted on said platform.