PIPELINE REPAIR DEVICE Russian patent published in 2023 - IPC F16L55/18 E02D23/00 

FIELD: pipeline equipment.

SUBSTANCE: invention relates to devices for repairing pipelines in flooded and/or swampy and/or marshy areas. The device contains hermetically interconnected upper 1 and lower 2 parts, in the end walls 3, 4 of which there are through arc-shaped openings 6 with a radius corresponding to the radius of the pipeline being repaired. The lower part 2 is made in the form of a horizontally positioned semi-cylinder, on the end walls 4 of which, symmetrically relative to their vertical axis 7, hinge-roller mechanisms 8 are fixed. Each mechanism 8 is made in the form of a pair of closing half-rings 9, installed with the possibility of turning and gripping the pipeline, and pivotally connected to the screw mechanism 10. Each closing half-ring 9 is made of two half-rings 11, between which rollers 12 with cable grooves are fixed at the same distance from each other. To the inner side of the closing half-rings 9, rollers 13 are fixed equidistant from their ends, located with the possibility of moving along the circumference around the surface of the pipeline. Brackets 19 are fixed symmetrically relative to its vertical axis 7 on the outer surface of one of the end walls 4 of the lower part 2.

EFFECT: device provides reliable fixation of the elements of the device during its installation and during repair work on pipelines, makes it possible to perform all types of repair work, including repair of the pipeline by inserting the coil.

6 cl, 6 dwg