Screw locking limitation device, has screw and helical ring assembly screwed in part till screw contacts with part to be locked, where ring is forced in housing by utilizing screw stopper, so as to block rotation of screw

摘要

The device has a screw (1) comprising a stopper provided at the level of a head of the screw. The screw and a helical ring (2) contact by a face of the screw and a face of the ring. The screw and the ring assembly are screwed in a part (8) till the screw contacts with a part to be locked (3). The stop blocks an end of the helical ring integrated with the screw. The ring is anchored in a bottom of a housing (4) of a part to be locked (3), under the effect of locking torque. The ring is forced in the housing by utilizing the stopper, so as to block the rotation of the screw.