Elastic wedge type locknut

The elastic wedge type locknut comprises a nut body and a sub-nut arranged in the nut body, the nut body comprises a first base body and an inner hexagonal containing hole, and six faces of the inner hexagonal containing hole are inclined faces and are in an inverted hexagonal frustum shape; the secondary nut comprises a second base body, a threaded hole formed in the middle of the second base body, a seam formed in any side edge of the second base body and a hexagonal slope on the outer side of the second base body, and the second base body is in an inverted hexagonal frustum shape and is arranged in the inner hexagonal containing hole; the anti-loosening bolt has the advantages of being balanced in stress, free of shear stress on the bolt, strong in fastening force, good in anti-loosening effect, not prone to being affected by transverse impact vibration, simple in structure and low in manufacturing cost. 本实用新型弹性楔式防松螺母包括螺母本体和设置在螺母本体内的子螺母，所述螺母本体包括第一基体、内六角收容孔，所述内六角收容孔六个面为斜面且呈倒六棱台状；所述子螺母包括第二基体、开设在第二基体中部的螺纹孔、设置