PIPE INNER SURFACE CLEANING TOOL Russian patent published in 2025 - IPC B08B9/02 

FIELD: cleaning.

SUBSTANCE: invention relates to cutting devices for cleaning of inner surface of pipes from rust, scale, scale, contaminations, as well as for removal of plastic inner insulation. Pipe inner surface cleaning tool comprises guide element arranged at feed bar end and adjustable spring blades with cutters. Guide element is made in the form of rigid centraliser made with diameter that is 2-5 mm less than bore diameter of internal contamination or plastic insulation of pipe, with spring connected with its free end to rod end coaxially. Spring knives with cutters are made in amount of at least three, arranged on rod uniformly along perimeter at distance of 10-50 mm from spring with outer diameter by 0.5-1.5 mm smaller than inner diameter of pipe, in form of crown, expanding from spring. Cutters are made in the form of internal sharpening of knives, located in the direction of rotation of the rod relative to the pipe, at distance of 7-12 mm from the outer end of the corresponding knife with a cutting angle at top of 35°-60°.

EFFECT: creation of tool for cleaning of inner surface of pipes, which allows enlarging the field of application.

1 cl, 3 dwg