Portable shore power plug auxiliary plugging device

The invention discloses a portable shore power plug auxiliary plugging device, which comprises a fixed base, a sliding base, a sliding rail seat, a plug supporting seat, a supporting rod, a supportingblock and a limiting rod. Horizontal pulley guide slots are formed in the fixed base. Pulleys are installed on the two sides of the sliding base and arranged in the pulley guide slots. A horizontal guide slot, a longitudinal limit slot and a horizontal open slot are formed in the sliding base. The front end of the sliding base is hinged to the sliding rail seat, and sliding rails are arranged ina groove in the sliding rail seat. The side wall of the sliding rail seat is hinged to the supporting rod, and the other end of the supporting rod is movably placed in a guide slot. The supporting block is hinged to the lower portion of the supporting rod. The problem that it is inconvenient to plug a plug into an existing high-voltage socket shore power socket box because the plug and a cable behind the plug are too heavy