Multi -functional thing networking explosion -proof type intercom

The utility model discloses a multi -functional thing networking explosion -proof type intercom, including the shell, the joint has MCU in the shell, and the last end rotation of shell has connect theantenna, and shell middle part pivoted is equipped with sound and gathers the piece, antenna and sound are gathered the piece and all are connected with the MCU electricity, sound is gathered the piece and including the oval -shaped mounting disc, has been connect the transmission shaft soon in mounting disc interior screw thread, the threaded one end of transmission shaft has met step motor soon, and another end rotation of transmission shaft has met manual knob, the last electricity of step motor is connected with a motor drive, a motor drive and MCU electricity are connected, the cover isequipped with second supporting seat and first supporting seat on the transmission shaft, the second supporting seat is in between manual knob and the mounting disc, the joint has the sound sensor inthe mounting disc, and soun