Hydrometric cableway ware that oils

The utility model discloses a hydrometric cableway ware that oils, include steel cylinder shell, piston, go up oil box and pulley, the steel cylinder shell is inside to be equipped with the piston and quantity is 2, the piston both sides all are connected with the piston rod just with bolted connection, piston rod one end fixedly connected with end cover and the fixed connecting rod that sets up in end cover one side, connecting rod tip fixedly connected with extension spring connecting rod, all be equipped with the pressure extension spring between the extension spring connecting rod both ends, steel cylinder shell bottom fixedly connected with goes up the oil box and goes up the oil box both sides and all is equipped with the pulley, and steel cable about suitable span 250m can make its extended application that can step forward to 300~350m's the main push -towing rope, realize the upper reaches of the yellow river survey and distinguish the requirement of oiling of hydrometric station different span main p