SWIVEL ADAPTER FOR PUMPING STANDS Russian patent published in 2017 - IPC E21B17/05 

FIELD: oil and gas industry.

SUBSTANCE: swivel adapter for the pumping rods includes the upper spherical finger, the coupling, the sub-pendants to the pumping rods, the lower spherical finger. In this case, the coupling is made from both internal ends of a conical and split, tightened at the ends of the clips, rolled in its grooves. The spherical fingers end with sub-pins to the pumping rods, both spherical fingers mate with the inner spherical surfaces of the split sleeve and simultaneously interlock themselves with the ends made in the upper spherical finger in the form of a hemisphere, and in the lower spherical finger in the form of a spherical return seat equipped in the center with a washing channel.

EFFECT: ensuring the maximum exclusion of torque transmission to the pump rods and plunger, their flap and wear, and an increase in the overhaul period.

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