Inverted SF6 density relay protective cover device

The utility model relates to the technical field of instrument protection, in particular to an inverted SF6 density relay protective cover device, which comprises a shell, a brim arranged on one side of the shell, a rear cover arranged on one side of the shell through a plurality of mounting screws, and a limiting assembly arranged on one side in the shell and comprising a positioning plate, a limiting clamp and a supporting plate. The supporting plate is arranged at the lower end of the shell through a connecting assembly, the connecting assembly comprises two preset bolts, the rainproof cover made of stainless steel 316L is adopted, corrosion resistance is higher, the instrument is suitable for long-term outdoor use, chloride-containing environments and coastal areas, the lower open type shell is matched with the blocking clamp and the supporting plate, the heat dissipation effect of the instrument is improved, and the service life of the instrument is prolonged. And meanwhile, the embarrassing situation th