END CONNECTION DEVICE OF ELASTIC PIPING Russian patent published in 2012 - IPC F16L33/00 

FIELD: machine building.

SUBSTANCE: device consists of elastic piping including internal pipe with a layer of cord threads, spiral wire wrap and external pipe. To the axial channel of internal pipe there introduced is lower end of the nipple provided with a notch on outer side facing the side of elastic piping, internal connection thread on upper opposite end and circular projection on outer side and internal connection thread, on which a coupling nut installed on external circular nipple projection is supported. Inside the coupling there is circular groove with cylindrical section turning into the end section equipped with trunnions with internal helical notching. On the end of section of external pipe there installed is bandage having the possibility of end connection to the nipple body.

EFFECT: increasing carrying capacity of end connection of elastic piping.

1 dwg