SUPPORT-GUIDE RING Russian patent published in 2019 - IPC F16L7/00 

FIELD: construction.

SUBSTANCE: invention relates to construction of pipeline crossings laid inside the protective case on support-guide rings. Support-guide ring contains segments tightened on pipeline into rings by means of wedges. Each wedge represents a flat rod with longitudinal notches applied on one side and variable in length and width and with a ledge at one end. Each segment represents an arc with at least one support element in the form of a rib and has three flat elements at one end. On each flat element there are upper notches-retainers located perpendicular to lateral line of flat element, and lower notches located at an angle to side line and applied along entire width of flat element. On the other end the segment has a side hole and three mating rectangular holes with internal projections-hooks. When three flat elements are inserted into mating rectangular holes and upper retaining notches are made on flat elements with internal projections-hooks in reciprocal rectangular holes, mutual position of two adjacent segments on the pipeline is fixed. When the wedge is inserted into the side hole of the segment until tight fit of the ring on the working pipe or the stop in the ledge on the wedge, there is a final tightening of the support-guide ring on the pipeline.

EFFECT: support-guide ring is proposed.

3 cl, 5 dwg