Small electric quantity metering box

The invention discloses a small electric quantity metering box. The electric meter box comprises a box body, a plurality of mounting plates fixedly mounted in the box body, electric meters fixedly mounted on the mounting plates, and protection assemblies arranged corresponding to the mounting plates and used for protecting the electric meters, the protection assembly comprises a plurality of protection covers which are connected together through connecting columns and installed in the box body through tension springs. A control assembly used for controlling the protective cover to move is further arranged in the box body. When the temperature sensor detects that the temperature is abnormal; the protection assembly can be controlled by the arranged control assembly to cover the electric meter; furthermore, preliminary fire extinguishing and protection of other devices can be achieved in an isolation mode, economic damage caused by spontaneous combustion during metering can be effectively reduced, after the ele