Electric leakage alarm device for electric power metering box

The utility model relates to the technical field of power equipment, in particular to an electric leakage alarm device of an electric power metering box, which comprises an electric leakage alarm device and the electric power metering box, a fixed plate A is arranged at the rear end in the electric power metering box, a sliding groove is arranged at the front end of the fixed plate A, baffles are arranged at the left end and the right end of the fixed plate A, and a sliding block is arranged in the sliding groove. A threaded hole is formed in the left end of the sliding block, a threaded rod is arranged in the sliding groove, through holes are formed in the end faces of the outer sides of the two baffles, baffle discs are arranged on the left portion and the right portion of the threaded rod, the two baffle discs are located in the two through holes correspondingly, a fixing disc is arranged at the right end of the threaded rod, and a fixing plate B is arranged at the front end of the sliding block; and the e