Heat preservation device for tank-type circuit breaker aviation plug connector

The heat preservation device comprises an inner heat preservation assembly and an outer fixing assembly, the inner heat preservation assembly and the outer fixing assembly are each of a cuboid hollow structure, the top of the inner heat preservation assembly and the top of the outer fixing assembly are open, the inner heat preservation assembly is adsorbed to an aviation plug, a round pipe is designed at the bottom of the inner heat preservation assembly, and the outer fixing assembly wraps the inner heat preservation assembly; the inner heat preservation assembly and the outer fixing assembly of the heat preservation device are both of a cuboid hollow structure, the top of the cuboid hollow structure is open, the heat preservation device can be suitable for most of circuit breaker aviation plugs, the application range is wide, the split design is adopted, rapid installation and disassembly are convenient, and the working efficiency is improved. The round pipe and the round hole are designed to be attached to