Threaded copper stop valve

The invention provides a threaded copper stop valve, and belongs to the technical field of valves. The threaded copper stop valve comprises a threaded copper stop valve shell, a connecting nut and an opening and closing mechanism, the connecting nut is arranged on the circumferential surface of the threaded copper stop valve shell, and the opening and closing mechanism comprises an adjusting rotating wheel, a rotating rod, a first fixed round block, a semicircular groove, a spiral fan blade, a closed round rod, a second fixed round block, an annular groove, a spring, a ball, a first limiting ring and a round hole. The circumferential surface of the first fixing round block is slowly sleeved with an annular groove in one side of the second fixing round block, a ball is located in a round hole and is partially exposed through blocking of a spring, after the circumferential surface of the first fixing round block is sleeved with the annular groove, the elastic force of the spring is released, and the ball is pop