FIELD: construction.
SUBSTANCE: invention relates to connecting device for supply of fluid medium to rotary tool, comprising rotary input with rotor and stator, where rotor is supported with the possibility of rotation relative to stator. Support is also provided against slippage, which is connected to stator without possibility of relative rotation and comprises at least one contact element. According to invention, this at least one contact element is arranged with the possibility of displacement between diverted position and extended position, in which contact element is extended compared to diverted position to develop support against slippage for perception of torque.
EFFECT: provides for more flexible use in various drilling rigs and drilling rods.
12 cl, 3 dwg
