Plug-in proximity sensor with additional exhaust hole

The plug-in proximity sensor comprises a magnetic core, a front cover of a PCBA (Printed Circuit Board Assembly) and a Plug male head, the inside of the magnetic core is bonded and fixed through glue, the right side of the outer side of the front cover is fixedly sleeved with a shell through glue in a bonding manner, and the right end of the inner side wall of the shell is sleeved with a metal pipe rotating head in a threaded manner; a male head mounting opening communicated with the interior of the metal pipe rotating head is integrally formed in the center of the right side of the metal pipe rotating head, and the Plug male head is fixedly mounted in the male head mounting opening in the right side of the metal pipe rotating head through glue; a glue pouring hole communicated with the interior of the shell and an exhaust hole communicated with the interior of the shell are reserved in the right side of the outer side of the shell. According to the utility model, the exhaust hole is additionally arranged on