Modular fire detection alarm device

The utility model discloses a modular fire detection alarm device, including power module, radio network gateway module and fire alarm module, power module's upper surface sets up first fixture block,the lower surface of radio network gateway module and fire alarm module all sets up first draw -in groove, power module's upper surface still sets up the power connection piece that is connected withthe battery, the lower surface of radio network gateway module and fire alarm module all sets up and touches the spring with the power of power connection piece looks adaptation, the gateway wiring board assembly of radio network gateway module goes up to set up and meets electrical pillar, connect electrical pillar's upper end to stretch out the upper surface of radio network gateway module, thelower surface setting of fire alarm module and the electrical slot that connects who connects electrical pillar looks adaptation, the periphery of the gateway apron of radio network gateway module evenly sets up the spliced po