Power adapter shell and power adapter

The utility model relates to a power adapter shell and a power adapter. The power adapter shell comprises a power adapter shell body and a power adapter plug, the device comprises a bottom shell, an upper cover, a first wire clamping piece and a second wire clamping piece, a connecting plate extending towards the other direction is arranged on the peripheral wall of one of the bottom shell and theupper cover; a connecting groove is formed in the bottom of the other one along the circumferential direction; the connecting plate is hermetically connected into the connecting groove; the bottom shell is provided with a wire inlet and a wire outlet. The connecting plate is provided with a first bayonet communicated with the wire inlet and a second bayonet communicated with the wire outlet; a first extension part is arranged at one end, close to the electrical cavity, of the first wire clamping piece; a first clamping groove is formed in the periphery of the first extension part; the side wall of the first bayonet i