ROTATING PIPELINE FLANGES BOLTED CONNECTION FIXING DEVICE Russian patent published in 2018 - IPC F16B39/20 

FIELD: threaded connections.

SUBSTANCE: invention relates to the field of threaded connections, in particular, to the rotating pipeline flanges bolted connections fixing devices. Essence of invention consists in fact that the rotating pipeline flanges bolted connections fixing device includes the bolts heads position retainer, made in the form of parallel projections, arranged radially and symmetrically relative to the corresponding bolt head, distance between which is not less than the bolt head “turnkey” size, and the nuts position retainer, made in the form of cylindrical supports according to the number of nuts and the S-shaped spring, one of the loops of which covers the corresponding nut, and the other is the corresponding cylindrical support, wherein for not more than ¾ of their circumscribed circle length, the spring loops are located in annular grooves, made on each of the nuts edges and the corresponding supports outer surface, wherein the grooves depth does not exceed the spring rod diameter, and the spring ends contain straight sections, bent in the radial direction to the corresponding loop center and are located in through diametral holes, made in the grooves on the each nut edges, and on the corresponding supports outer surface.

EFFECT: technical result consists in ensuring the of the self-tightening effect realization of the threaded connection by using the device elastic properties, at the same time simplifying the device design.

1 cl, 5 dwg