External buckling and hanging sealing plate structure and shield box transformer substation

The utility model discloses an external buckle hanging sealing plate structure and a shield box transformer substation, comprising a cabinet body frame, the cabinet body frame is formed by splicing a plurality of frames, an outer side sealing plate is buckled on an external installation surface of the frames, and a side surface frame opening of the cabinet body frame is sealed by pressing the frames. The outer side sealing plate comprises a sealing plate body and a top flange located on one side of the top of the sealing plate body, a transverse frame located on the top of a side face frame opening of the cabinet body frame is provided with a hanging positioning piece, and the hanging positioning piece is located on the outer installation face of the transverse frame and arranged in the length direction of the transverse frame. The suspension positioning piece is used for achieving suspension positioning fit of the top flange when the outer side sealing plate is installed. The device overcomes the defect that