Combined lock nut

[0023] Such as figure 1 and image 3 As shown, a combined locknut includes a lock nut 1 , a rubber washer 2 and a combined nut 10 . There is a concave round table 7 inside one end of the lock nut 1, and a flange surface 5 outside; the three split nuts 4 of the combined nut 10 are placed in the support sleeve 3 according to the corresponding sequence on the convex nut 9 before being divided, The rotation directions of the threads of each split nut 4 are the same, and there are equal circumferential gaps 11 between every two split nuts 4 , and the split nuts 4 can only Produce the radial displacement along bolt 8; Because the taper of lock nut concave round table 7 is identical with the taper of the convex round table of convex nut 9, so the inner surface of lock nut concave round table 7 and the outer surface of split nut convex table 6 can coincide.

[0024] When assembling, install the combination nut 10 first, then place the rubber gasket 2, and finally install the lock nut