Packaging shell structure of voltage transformer

The utility model relates to the technical field of voltage transformers, in particular to a packaging shell structure of a voltage transformer, which comprises a base and an upper cover, notches I are arranged in four sides of the base, a plurality of chutes I corresponding to the notches I are arranged at an opening at the upper end of the base, the chutes I are communicated with the notches I, and the notches I are communicated with the upper cover. A first notch is formed in the upper end of the base, a clamping block is slidably connected into the first notch, a plurality of first connecting blocks corresponding to the first sliding grooves are arranged at the lower end of the upper cover, the first connecting blocks are matched with the clamping block, a through groove is jointly formed in the base and the upper cover in a penetrating mode, and a containing groove is jointly formed in the base and the upper cover. When the interior of the voltage transformer breaks down and needs to be maintained, a spe