Power plug and conversion socket

A power plug, comprising:

• a casing defining an accommodating cavity, the accommodating cavity including a cavity opening communicating with an exterior of the casing;
• at least two pins partly received in the accommodating cavity and protruding out of the casing through the cavity opening, the at least two pins being movable relative to the casing, the at least two pins defining a plug-in direction along which the at least two pins are insertable into a socket;
• at least two conductive connectors electrically connected with the at least two pins, respectively, and movable together with the at least two pins;
• and,
• at least two metal pieces received in the accommodating cavity and configured to be electrically connected to a cable of the power plug, the at least two metal pieces being electrically connected with the at least two conductive connectors, respectively, so as to be electrically coupled to the at least two pins;
• wherein each of the at least two metal pieces provides a first force and a second force onto a corresponding conductive connector of the at least two conductive connectors, the first force presses the conductive connector toward the plug-in direction of the power plug, the second force presses the conductive connector toward a direction opposite to the plug-in direction of the power plug;
• wherein the power plug further comprises a rotatable seat rotatably disposed in the accommodating cavity, the at least two pins are attached to the rotatable seat and move as the rotatable seat rotates, the at least two metal pieces are unmovable relative to the casing when the at least two pins move;
• wherein each of the at least two conductive connectors includes a metal plate, the metal plates of the at least two conductive connectors are stacked along the plug-in direction above the at least two pins, an edge portion is formed at each metal plate, when the edge portions are driven to move together with the rotatable seat, due to the first and second forces applied on opposite surfaces of each edge portion, each edge portion and the corresponding metal piece maintain continuous contact.