LINEAR ELEMENT OF COLLAPSIBLE PIPELINE Russian patent published in 2018 - IPC F16L9/14 

FIELD: transportation.

SUBSTANCE: invention relates to pipeline transport, particularly, to demountable pipelines with a female joint. Collapsible pipeline linear element comprises pipe, which one end is made in the form of a cone having annular groove on the outer surface, and the other end is made in the form of a bell, on its inner surface having entrance chamfer and two successively located annular grooves, of which in the second from the end groove the elastic sealing ring is installed, and in the first from the end bell groove fixing split conical ring is installed. Conical ring is a part of the conical shell, has one longitudinal cut over the ring entire width, and equal longitudinal cuts from the small diameter end, not reaching the second end. Conical ring large diameter coincides with the pipe socket first annular groove diameter, the conical ring small diameter is smaller than the pipe cone cylindrical section diameter. Grooves arrangement is made in such a way that, in the docked state position of the remote from the pipe socket first annular groove side wall end and closest to pipe cone annular groove side wall end, coincide.

EFFECT: due to simplification of the joint configuration and reduction of the acting therein stresses, invention allows to manufacture linear elements from composite materials with corresponding significant weight reduction and simplifies the pipeline assembly-disassembly process.

5 cl, 4 dwg