Proximity switch

The utility model relates to a proximity switch, which comprises a mounting part, a sensor assembly, a connecting assembly and an anti-collision part, and is characterized in that the mounting part comprises a cylindrical main body and a mounting seat, and the mounting seat is detachably connected to one end of the cylindrical main body; the sensor assembly comprises a sensor accommodating seat and a sensor element; the sensor element is fixed in the sensor accommodating seat and extends out of one end of the sensor accommodating seat to form a detection end part; the connecting assembly comprises an elastic piece, and the sensor containing base is elastically connected with the mounting base through the elastic piece so as to move in the axial direction of the cylindrical body relative to the cylindrical body. The anti-collision part comprises a protective cover, and the protective cover is connected to the sensor containing seat and covers the detection end part. Through the technical scheme, the proximity