<p>A locking device for a swop container, wherein the locking device is arranged for cooperation with a transport vehicle, comprising a locking unit for locking a corner piece of a swop container, wherein the locking unit is adjustable between a first position wherein the locking unit is received in a housing and a second position wherein the locking unit is substantially outside the housing, wherein the locking unit is adjustable from the first position to the second position by an activating unit and wherein the locking unit is further adjustable from the second position into a third position in which the corner piece of the swop container is locked.</p>
