Ball coupling

A ball coupler which can be actuated by means of a handle (3) held pivotable on a coupling housing (1) by a transverse bolt (5) attached thereto and blockable by means of a pin lock (4), wherein the transverse bolt (5) is guided in elongated holes (12) of the handle (3), wherein the pin lock (4) is held in a bore (9) of the handle (3) running perpendicular to the longitudinal axis of the coupling housing (1) and facing its upper side, and a locking bolt (7) of the pin lock (4) in the blocking position engages behind the transverse bolt (5) in such a manner that a pivoting movement of the handle (3) about the transverse bolt (5) is blocked.