Lock bolt with double-nut rolling structure

The invention discloses a lock bolt with a double-nut rolling structure. The lock bolt with the double-nut rolling structure is characterized by comprising a bolt body, an inner nut, the rolling structure and an outer nut. The inner nut and the outer nut are sequentially screwed into a threaded section of the bolt, and the rolling structure is located between the inner nut and the outer nut. According to an anti-loosening method of the lock bolt with the double-nut rolling structure, the pre-tightening force of the bolt can be effectively controlled within a constant and effective range, loosening of the bolt and the nuts is prevented, and the state of the bolt and the state of the nuts are locked. 本发明公开了一种双螺母滚动构造防松螺栓，其特征在于所述双螺母滚动构造防松螺栓包括：螺栓，内螺母，滚动构造和外螺母。所述内螺母和外螺母依次旋入螺栓的螺纹段，所述滚动构造位于所述内螺母和外螺母之间。本发明双螺母滚动构造防松螺栓的防松方法能有效地将螺栓的预紧力控制在恒定、有效的范围内，防止螺栓螺母的松动，将螺栓螺母的状态锁定。