a connecting device for the detachable connection with a component , wherein the connecting device includes an anchor unit which is movable by means of a drive between a locking and a non - locking state and by which the connecting device can be fixed to the component . it is an object of the present invention to achieve an improvement and it is proposed by the invention that the drive includes a rotatable actuation member , by the rotation of which through an angle of less than approx 100 °, especially approx 90 °, the anchor unit can be brought from one state into the other .