Observation window explosion-proof structure for distribution cabinets

The invention discloses an observation window explosion-proof structure for distribution cabinets, which comprises an explosion-proof layer, an explosion-proof cavity and explosion-proof holes. The explosion-proof layer is arranged around the explosion-proof cavity. Two explosion-proof holes are arranged in each side of the explosion-proof cavity. Each explosion-proof hole includes an explosion-proof interface, fan-shaped assemblies and a thermal expansion movable part, wherein the fan-shaped assemblies and the thermal expansion movable part are arranged in the explosion-proof interface, eachfan-shaped assembly is composed of a fan-shaped mouth and a triangular oblique rod, and the fan-shaped mouths are fixedly connected with the thermal expansion movable part through the welded triangular oblique rods. The existing heat dissipation technology through a heat pipe is changed into heat dissipation through the explosion-proof holes. Under the action of the explosion-proof holes, the internal pressure of the expl