Explosion-proof device for pneumatic tires

The invention relates to the technical field of tires, in particular to an explosion-proof device for pneumatic tires. The explosion-proof device is composed of composite bodies consisting of connecting pieces, steel wires and supporting bars; and a through hole is formed in each connecting piece, each steel wire penetrates through the corresponding through hole of the connecting piece and is fixedly connected with the connecting piece through steel wire blocking heads on both sides, and the steel wires connected with the connecting pieces are embedded into the supporting bars to form the composite bodies. The composite bodes are fixedly connected by the connecting pieces at the two ends of the composite bodies, and the technical problem that sudden collapse, burst and disengaging of the pneumatic tires results in vehicle deviation and even rollover, thus personal safety is endangered is solved; and disengaging from rims due to the sudden impact during tire burst is avoided, the normaloperation of vehicles an