Rotary charging plug structure of a charger

A rotary charging plug structure of a charger, comprising:

• an upper lid to be matched with a lower lid so as to receive a circuit board therein;
• a lower lid being provided with a receiving chamber therein for receiving a blade base, the receiving chamber being provided on each of opposing sides thereof with a U-shaped notch for receiving a shaft, the U-shaped notch and an inner wall of the receiving chamber jointly forming a groove for receiving a conductive plate, the receiving chamber being provided with an urging portion at an upper end and a retaining portion at a lower end thereof for urging against a stop block of the blade base and for retaining unto a flange of the rear lid;
• a blade base being provided with two blades at a front end thereof, and the shafts at each of opposing ends thereof, the shafts being each formed with an annular grove at a top end thereof, wherein the blade base is made by integrally riveting the blades to the shafts and includes the two stop blocks and a protruding block;
• two conductive plates being wired to the circuit board, each of the conductive plates being provided at a front end thereof with a semi-circular through-hole for being riveted to the annular groove of the shaft;
• and
• a rear lid covering and urging against the blade base after placing the blade and the conductive plates into the receiving chamber, the rear lid being provided with a through-hole at each of opposing ends thereof, through which through-holes the conductive plates penetrate, the rear lid including a guide block at a center thereof to allow sliding movement of the protruding block of the blade base, each of the through-holes and the guide block being provided with a push block therebetween for urging against the shafts;
• whereby the blades can be rotated within a 90° range, the blades are prevented from disengagement upon experiencing a frontal or a lateral impact, failure caused by environmental humidity is eliminated, and the manufacturing and assembly cost is reduced.