Material-receiving device for a suction excavator, and suction excavator having said material-receiving device

A material-receiving device having an articulated tube support and a suction tube for a suction excavator, the articulated tube support having a rotationally movable fastening mount at a first, proximal end and a suction connecting piece connected to the suction tube at a second, distal end, and the articulated tube support having a number n≥3 of links-Q between each of which a hinge joint with an associated drive is formed, all the hinge joints-having the same degree of freedom, so that the links are pivotable in a common plane wherein the material-receiving device further comprises a rotary joint, which has a continuous receiving opening along its rotation axis having a cross section larger than the cross section of the suction tube, the rotary joint being disposed at a position between the last, distal hinge joint farthest away from the fastening mount and the first hinge joint closest to the rotationally movable fastening mount, the rotary joint having a different degree of freedom than the hinge joints so that the link disposed distally subsequently to the rotary joint can be moved out of the plane, the suction tube being guided through the receiving opening of the rotary joint, so that the rotary joint is disposed coaxially with the suction tube.