Self-locking power plug

A self-locking power plug, inserted to a power socket, the power socket comprising a socket body and a plurality of conductive insertion pins, the socket body comprising an engage slot, the conductive insertion pins convexly disposed in the engage slot, the self-locking power plug comprising:

• an insulation base, comprising an engage surface, an insertion direction defined towards the engage surface, a rail disposed therein parallel to the insertion direction, and a first channel, a second channel and a third channel communicating with the engage surface disposed therein parallel to the insertion direction, wherein the first channel is disposed between the second channel and the third channel;
• a plurality of conductive members, mounted in the insulation base and respectively exposed from the first channel, the second channel and the third channel;
• a locking sheet, disposed in the insulation base and transversally crossing a longitudinal direction of the first channel, and comprising a penetrated hole, a fixed side and a moveable side opposite to the fixed side, wherein the fixed side is positioned in the insulation base, the moveable side is moveably disposed, the fixed side and the moveable side are respectively disposed at two sides of the first channel, the moveable side is arranged to be close to the second channel, and the fixed side is arranged to be close to the third channel;
• a slide block, disposed on the rail and slidable along the rail between a locked position and a released position, wherein the slide block hooks the moveable side of the locking sheet to drive the locking sheet to rotate, the slide block comprises a handgrip extended to be out of the insulation base;
• and
• an elastic unit, disposed in the insulation base and abutting against the insulation base and the slide block to make the slide block be preloaded with a force along a direction opposite to the insertion direction and towards the locked position;
• wherein, when the slide block is at the released position, the locking sheet is arranged to be perpendicular to the longitudinal direction of the first channel to make one of the conductive insertion pins longitudinally move in the first channel;
• wherein, when the slide block is at the locked position, the locking sheet is in an inclined status relative to the longitudinal direction of the first channel;
• wherein, when the insulation base is inserted in the engage slot, the conductive insertion pins are respectively inserted in the first channel, the second channel and the third channel to be connected to each of the conductive members, the slide block moves towards the locked position to drive the moveable side of the locking sheet to make the locking sheet rotate, the penetrated hole is inclined relative to longitudinal rotation of the first channel till an inner edge of the penetrated hole being latched at a location defined at a lateral edge of the conductive insertion pin in the first channel.