Ordered charging metering box with external protection device

The invention discloses an ordered charging metering box with an external protection device, and belongs to the technical field of charging piles. The ordered charging metering box comprises a water pumping mechanism, a sealing metering box, an external protection mechanism and a water storage mechanism; the water pumping mechanism is arranged at a parking space, a water pumping bag is arranged in the water pumping mechanism, and the water pumping bag is communicated with the water inlet end of the water storage mechanism; when the water pumping mechanism is rolled by a vehicle, water in the water pumping bag is squeezed into the water storage mechanism; a shell of the sealed metering box is of a fully-closed structure, and through arrangement of an electromagnetic valve, when the sealed metering box executes an ordered charging strategy, the electromagnetic valve can adjust the flow of the electromagnetic valve in cooperation with charging power, and it is guaranteed that auxiliary cooling water in a water s