A charging column, comprising: an equipment box comprising a control equipment and a delivery pipeline received therein; two isolated docking boxes respectively disposed outside the equipment box and each enclosing an interior separated and physically isolated from an interior of the equipment box; each one of the isolated docking boxes further comprising at least one pair of first pair of joints connected to the delivery pipeline and a plurality of electrodes arranged therein and electrically connected to the control equipment; the two isolated docking boxes respectively configured to be an input docking box and an output docking box; two power devices (300a/300b), wherein the respective power devices (300a/300b) comprise a power supply device for transmitting power to the control equipment and a charging gun for receiving power from the control equipment; wherein the power supply device is arranged inside the input docking box and connected to the plurality of electrodes inside the input docking box; wherein the charging gun is connected from an exterior of the output docking box to an interior of the output docking box and further connected to the electrodes inside the output docking box; wherein the control equipment controls the power transmission from the power supply device to the charging gun; and wherein the power supply device and the charging gun correspondingly include a cooling pipeline arranged thereon; each one of the cooling pipelines is connected to an interior of the correspondingly isolated docking box, and each one of the cooling pipelines includes at least one pair of second pair of joints correspondingly connected to each one of the first pair of joints. an equipment box comprising a control equipment and a delivery pipeline received therein; two isolated docking boxes respectively disposed outside the equipment box and each enclosing an interior separated and physically isolated from an interior of the equipment box; each one of the isolated docking boxes further comprising at least one pair of first pair of joints connected to the delivery pipeline and a plurality of electrodes arranged therein and electrically connected to the control equipment; the two isolated docking boxes respectively configured to be an input docking box and an output docking box; two power devices (300a/300b), wherein the respective power devices (300a/300b) comprise a power supply device for transmitting power to the control equipment and a charging gun for receiving power from the control equipment; wherein the power supply device is arranged inside the input docking box and connected to the plurality of electrodes inside the input docking box; wherein the charging gun is connected from an exterior of the output docking box to an interior of the output docking box and further connected to the electrodes inside the output docking box; wherein the control equipment controls the power transmission from the power supply device to the charging gun; and wherein the power supply device and the charging gun correspondingly include a cooling pipeline arranged thereon; each one of the cooling pipelines is connected to an interior of the correspondingly isolated docking box, and each one of the cooling pipelines includes at least one pair of second pair of joints correspondingly connected to each one of the first pair of joints.