Sawtooth type travel switch

The utility model discloses a sawtooth type travel switch, which belongs to the technical field of travel switches and comprises a fixed seat for mounting the travel switch, two positioning rods are clamped at the top end of the fixed seat, a protective cover is arranged at the top ends of the two positioning rods, a switch main body is arranged on the inner wall of the protective cover in a sliding manner, and the switch main body is connected with the fixed seat. The top end of the switch main body is provided with an attaching block. According to the sawtooth-type travel switch, due to the design of the attaching block, the iron block, the protective cover and the drying box, the sawtooth-shaped attaching block is matched with the iron sheet and the protective cover, so that the travel switch can work normally in a severe environment, the service life is long, and the sawtooth-shaped attaching block is matched with the drying box, so that water vapor in the environment can be absorbed, and the service life