THREAD CONNECTION WITH HIGH COMPRESSION STRENGTH FOR PIPELINES AND HOSE LINES WITH TAPER THREAD Russian patent published in 2016 - IPC F16L19/28 

FIELD: machine building.

SUBSTANCE: invention relates to connection devices for pipelines and hose lines with threaded body and pipe nozzle made with possibility of securing in it by means of captive nut installed on the treaded body. The intake socket of the threaded body has shape of expanding cone and peripheral surface of the nozzle entering the intake socket has cone shape. The periphery surface of the thread body with male thread in direction of its front end has run inclined opposite to cone of the intake socket, and captive nut on its surface with female thread has run being complementary to this run, and male thread and female thread are made in form of cone thread such, that in the installed connecting device the radial force acting from the cone nozzle in the intake cone made in the thread body is directed opposite to the radial force occurred from the cone thread with installed captive nut.

EFFECT: invention simplifies installation of the connection.

12 cl, 12 dwg