Energy-saving hydraulic hoist

The utility model discloses an energy-saving hydraulic hoist which comprises a mounting table, a transmission device is fixedly mounted at the top of the mounting table, and a threaded rod is fixedly mounted at the bottom of the transmission device; the oil box is fixedly mounted on the outer wall of the top end of the threaded rod; the gate is in threaded connection with the outer wall of the threaded rod, and rolling structures are symmetrically arranged on the two sides of the bottom of the gate; and the clamping plate is clamped to the outer wall of the gate, and the clamping plate is fixedly mounted on the inner wall of the bottom of the mounting table. According to the energy-saving water conservancy hoist, when water flow is intercepted, a threaded rod rotates to enable a gate to move downwards in a clamping plate, the gate rolls on the two sides of the exterior of the clamping plate through rolling wheels while moving, then the gate limiting effect is improved, meanwhile, movement of the gate is facil