Interlocking switch device of pneumatic drilling machine

The utility model discloses an interlocking switch device of a pneumatic drilling machine, which mainly solves the problem of personal injury caused by misoperation in the actual use process of the existing interlocking switch device. The valve comprises a valve body, the middle of the valve body is in a hollow cylindrical shape, the valve body is provided with a semicircular groove, and the semicircular groove is formed in the lower half portion of the hollow cylindrical shape in the valve body; the straight groove is formed in the front left portion of the semicircular groove; the interlocking shaft is located in the valve body, the interlocking shaft is provided with a semicircular hole, the two semicircular holes are formed in the upper surface and the right surface of the interlockingshaft respectively, and the two interlocking shafts are arranged on the lower surface of the interlocking shaft; and the first ball body is arranged in the semicircular hole in the right surface of the interlocking shaft and