Explosion-proof intrinsic safety type signal conversion box

The invention relates to an explosion-proof intrinsic safety type signal conversion box. The signal conversion box comprises an explosion-proof shell, a wiring cavity and an explosion-proof cavity are formed in the explosion-proof shell, the wiring cavity is opened through a first opening, a first support is fixedly arranged in the wiring cavity, a first track is arranged at the first support, a first installation frame used for installing a switch module and a router is arranged in the wiring cavity, and a second track is arranged at the second support. The first mounting rack can slide out of the wiring cavity; the explosion-proof cavity is opened through a second opening, a second support is fixedly arranged in the explosion-proof cavity, a second track is arranged at the position of the second support, a second installation frame used for installing an intrinsic safety power module is arranged in the explosion-proof cavity, the second installation frame can slide out of the explosion-proof cavity and is p