Stop valve with higher manual opening and closing speed

The utility model discloses a stop valve with higher manual opening and closing speed, and relates to the technical field of valves. The closing speed of the stop valve can be increased, and the difficulty of manually closing the stop valve in an oil-gas pipeline is reduced. The stop valve comprises a valve body, a valve clack, a valve rod, a gear box, a small gear, a large gear and a handle. The valve clack is located in the valve body and can move up and down along the valve body to open or close a channel in the valve body. The lower end of the valve rod is connected with the valve clack, and the upper end of the valve rod is connected with the pinion; one end of the handle is rotationally connected to the gearbox, and the other end extends out of the gearbox; the large gear and the small gear are both located in the gear box, the large gear is meshed with the small gear, and the large gear is connected to the handle. The performance of the stop valve is improved. 本申请公开了一种具有更快人工启闭速度的截止阀，涉及阀门技术领域。能够提高截止阀的关闭