Hydraulic system of hydraulic hoist for head gate of hydropower station

The hydraulic system of the hydraulic hoist of the head gate of the hydropower station comprises a first liquid conveying pipeline, the first liquid conveying pipeline comprises a throttling stop valve and a first hydraulic control one-way valve, an inlet of the throttling stop valve is connected with a first opening of a hand-operated direction valve, and an outlet of the throttling stop valve is connected with an inlet of the first hydraulic control one-way valve. The first hydraulic control one-way valve is connected with a hydraulic cylinder, and a second port of the manual reversing valve is connected with an oil tank; the second liquid conveying pipeline comprises a second hydraulic control one-way valve and a first one-way valve, a third opening of the hand-operated direction valve is connected with the first one-way valve, and the first one-way valve is arranged towards the hand-operated direction valve and connected with the hydraulic cylinder through the second hydraulic control one-way valve; the t