FIELD: mechanical engineering. SUBSTANCE: device has housing with a cover wherein a locking member is movably mounted for interaction with the opening in the wall of the second shape to be joined. The crank with an eccentric collar is mounted in axially alined openings of the housing of the locking member and cover. The crank is spring-loaded with respect to the housing. The opening in the base of the housing is provided with an eccentric bore corresponding to the eccentric collar of the crank. EFFECT: enhanced reliability. 4 cl, 5 dwg
