Drill head and method for producing a vertical borehole in the ground

A drill head for producing a vertical borehole in the ground comprising:

• a body connectable to a rotary drive of a drilling device,
• drilling tools disposed on the body for loosening the ground at a face of the borehole;
• a discharge device connectable to a suction unit of the drilling device configured to discharge the loosened ground on the face wherein the suction unit is configured to suction a conveying medium via a conveying line of the drilling device, wherein the discharge device comprises an opening disposed on the body;
• the opening disposed adjacent the drilling tools at the face;
• a suction box disposed in the discharge device connected to the at least one opening, the suction box comprising a connector opening opposite the opening, the connector opening connectable to the suction line;
• at least one acceleration element exerting an acceleration on the loosened ground to move the ground loosened by the drilling tools one of toward the opening;
• wherein the loosened ground is picked up by the conveying medium and is discharged via the conveying line by the suction unit;
• wherein a spacing of the opening in relation to the face is adjustable;
• and
• wherein the adjustment of the spacing is provided one of by vertically moving the suction box relative to the body of the drill head with an actuator or by pivoting the suction box about a pivot point relative to the body of the drill head with an actuator.