Combined lock nut

The utility model relates to the technical field of fasteners, and provides a combined locknut which comprises a nut part, the nut part is arranged on a screw in a threaded mode, the nut part is arranged on an elastic part, the screw penetrates through the elastic part, and the elastic part is provided with a first supporting part, a second supporting part, a third supporting part and a fourth supporting part. Two ends of the first connecting part are respectively connected with the first supporting part and the second supporting part, two ends of the second connecting part are respectively connected with the second supporting part and the third supporting part, and two ends of the third connecting part are respectively connected with the third supporting part and the fourth supporting part. By means of the technical scheme, the problem that in the prior art, a lock nut is poor in locking effect is solved. 本实用新型涉及紧固件技术领域，提出了一种组合型防松螺母，包括螺母件，螺母件螺纹设置在螺杆上，螺母件在弹性件上，弹性件被螺杆穿过，弹性件具有第一支撑部、第二支撑部、第三支撑部和第四支撑部，还具有第一连接部、第二