Device for extracting drilling sludge and the use thereof

A device for extracting drilling sludge for use at difficult to access locations on a building site, comprising:

• a main body;
• wherein the main body has a cavity on a lower side of the main body, wherein the cavity is formed by a first recess defined by the main body, wherein the first recess is open on a lower side of the main body and the first recess is closed on an upper side of the first recess by a base area of the main body;
• wherein the main body has an extraction opening which is positioned at an outer lateral edge of the cavity, opens into a lateral side of the cavity, and passes through top and bottom surfaces of the main body laterally offset from the first recess;
• wherein the remainder of the main body does not include any openings through the top surface or base area of the main body that open vertically into the first recess;
• and
• wherein a drilling sludge that is disposed in the cavity during a use of the device is extractable from the cavity by a suction device connected to the extraction opening.