Container lock

A locking device for containers, comprising:

• a container lock housing and with a locking hook that has a hook body, a hook element, and a pivot axis, which is stationary relative to the housing and about the pivot axis the locking hook can swivel into a standby position and a locking position, and with an activating mechanism for the locking hook, wherein the activating mechanism has a first actuating element, a second actuating element, and a releasing mechanism, wherein the first actuating element holds the locking hook in its standby position and the second actuating element is configured so that it blocks and clamps the locking hook in its locking position, and wherein the releasing mechanism after the releasing acts on the first actuating element and/or on the second actuating element, which automatically brings about the clamping and blocking of the locking hook in its locking position by the second actuating element.