Stop valve with emergency closing function

The utility model discloses a stop valve with an emergency sealing function, which comprises a water pipe, a splitter plate arranged in the water pipe, a valve hole arranged at the top of the splitter plate, a first valve cover arranged at the top of the water pipe, a first valve rod arranged in the first valve cover and a first valve clack arranged at the bottom end of the first valve rod, and a second valve cover is in threaded connection with the inner surface of the water pipe and is positioned right below the valve hole. According to the stop valve with the emergency sealing function, when water leaks, a pressing pipe is pressed to drive a spring rod to move and drive a telescopic rod to move at the same time, when the telescopic rod moves to a clamping hole, a second spring extends to drive the telescopic rod to extend, the telescopic rod enters the clamping hole, the spring rod drives a sealing plate to move, and the sealing plate drives a second valve rod to enable a second valve clack to move; theref