NUT WITH UNSCREWING LOCKING MECHANISM Russian patent published in 2024 - IPC F16B39/04 

FIELD: fasteners.

SUBSTANCE: invention relates to fasteners and can be used in connection of structural elements in various mechanisms or structures to prevent spontaneous unscrewing of nut from bolt thread. Nut with unscrewing locking mechanism comprises hollow body with thread on inner surface, wherein in the nut body on the side of the threaded surface there is a recess, in which a retainer is installed, which is a spring fixed by one end in the recess with a locking element fixed on its other end, so that at the point of its fixation the longitudinal axis of the retainer forms angle of 20° to 80° with the radius of the cross section of the nut, and the geometrical dimensions of the retainer provide it location inside the recess in the nut body when the spring is in compression and the location of at least part of the locking element above the threaded surface inside the nut when the spring is in a free state.

EFFECT: simplification of assembly of structural elements by means of the proposed nut without possibility of its reverse screwing or dismantling.

1 cl, 5 dwg