Novel emergency broadcast self-checking loudspeaker based on nuclear power, maritime work and petrifaction

The utility model provides a novel emergency broadcast self-checking horn based on nuclear power maritime work and petrochemical engineering, which comprises a horn shell assembly and a driving main part mechanism, and is characterized in that the horn shell assembly comprises a horn large cylinder, a horn middle cylinder and a horn rear cover; the driving main part mechanism comprises an upper cover, a sintering sheet, a voice waiting device, a paper pad, a voice diaphragm, a voice pad and a self-checking module; the horn middle cylinder is fixedly connected to the middle part of the inner side wall of the horn large cylinder; according to the utility model, the loudspeaker shell is manufactured in a die-casting manner according to the proportion of nylon and the wave fiber, so that the loudspeaker shell has the characteristics of static electricity resistance, illumination resistance and strong explosion resistance so as to be normally used in a flammable and explosive environment, then sound pressure is bu