Power supply device

The utility model discloses a power supply device which comprises a power supply main body, a downward inserting mechanism is arranged below the power supply main body, the downward inserting mechanism comprises a rotating shaft, a rotating plate is arranged at the bottom end of the rotating shaft, a U-shaped groove is formed in the bottom of the rotating plate, a U-shaped inserting plate is arranged in an inner cavity of the U-shaped groove, and strip-shaped sliding grooves are symmetrically formed in the two sides of the U-shaped inserting plate. Strip-shaped sliding blocks are arranged in inner cavities of the two strip-shaped sliding grooves, and a limiting mechanism is arranged on the front face of the rotating plate. According to the utility model, the downward insertion mechanism is arranged, and the power supply can be limited beside a large-size and heavy-weight object through the cooperation of the rotating shaft, the rotating plate, the two strip-shaped sliding blocks and the U-shaped insertion pla