Self-locking clamp

A self-locking clamp that comprises two clamping jaws (307) and at least one shank (11) connected to the at least one clamping jaw (307), the clamp comprises a central part (201), the at least one clamping jaw (307) is fastened in an articulated manner to the central part (201) via a first flexible connection (9), and that the at least the one shank (11) comprises two parts (12, 13) that are connected in an articulated manner to one another at adjacent ends via a second flexible connection (14), the shank (11) is fastened in an articulated manner via a third flexible connection (15) to the one clamping jaw (307), that the shank (11) is fastened in an articulated manner via a fourth flexible connection (17) to the central part (201), and that the central part (201) is formed in such a manner that the one shank (11) can assume a snapped-over position adjacent the central part (201) thus forming a first lock for the shank (11), characterized in that the clamp further comprises a second lock (40) which holds the shank (11) in the snapped-over position.