Electric power metering device convenient to maintain

The utility model discloses an electric power metering device convenient to maintain, which comprises a bottom plate, a shell is arranged on the surface of the bottom plate, a protective cover is arranged on the surface of the shell, a first sliding groove is formed in the shell, the top end of the protective cover is embedded into the first sliding groove, and a second sliding groove is formed inthe top end of the protective cover. First limiting grooves with circular sections are symmetrically formed in the surface of the bottom end of the protective cover; through the designed first sliding groove, the protection cover can be retracted, the protection cover and the shell are designed into a whole, the space utilization rate is increased, the protection cover is prevented from being lost to a certain extent, through the designed clamping pile, the protection cover can be effectively fixed, the use of a bolt is avoided, the operation difficulty is reduced, and the practicability is high. Maintenance of the e