FLANGELESS CONNECTION OF CYLINDRICAL PARTS Russian patent published in 2017 - IPC F16B7/18 

FIELD: machine building.

SUBSTANCE: invention relates to cylindrical parts flangeless connection and can be used for connection of submersible pump units modular sections, including small-dimensional ones. Connection includes male part with equidistant along circumference blind rectangular slots, female part with through rectangular slots, matching with blind slots, annular segments with their attachment device in parts combined slots and protector, retaining annular segments. Used fastener is magnet mounted in annular segment. Male part is made with external thread. Protector is shell with internal thread, screwed onto male part.

EFFECT: technical result is increase in pump units modular sections, including small-dimensional ones, reliability, simplicity, reduced time of mounting, possibility of fast assembly on well.

1 cl, 2 dwg