Torque-type throttle releasing device

The utility model relates to exploration equipment in petroleum industry, and in particular to a torque-type throttle releasing device. The torque-type throttle releasing device is characterized in that the upper part of a working barrel is sleeved on the outer wall of the lower part of an upper adapter, the lower part of the working barrel is sleeved on the outer wall of an internal hexagonal adapter, the internal hexagonal adapter is sleeved on the outer wall of an hexagonal central tube, the lower part of a piston is positioned an annular space which is formed by the working barrel and the hexagonal central tube, a lower adapter is sleeved on the outer wall at the lower part of the hexagonal central tube, a throttle working barrel is sleeved on the outer wall of the lower adapter, a throttle lower adapter is sleeved on the inner wall at the lower part of the throttle working barrel, and the upper and the lower ends of an inner sliding sleeve are connected with the inner wall of the throttle working barrel