HYGM slide type torque anchor The HYGM slide type torque anchor is an ideal down-hole tool for fixing the screw pump and preventing the oil pipe joint from loosening. The utility model has the functions of automatic centering and locking, simple operation, safety and reliability, and the principle is that the two-way curve is reversed, the tooth block and the cone sleeve are merged, and the weight of the pump and the oil pipe is lifted and lowered to automatically lock and fix. When the slip ring enters the short slot, it is released and enters the long slot seal. (See below)