Patent ID: 7787238

Claim:
A power supply adapter, comprising: a casing defining at least one inserting groove therein; at least one resilient piece disposed in the casing, and having a locating portion and a resisting portion extended gradually upward from the locating portion; and a plug module rotatablely disposed in the casing, the plug module having at least one retaining block disposed in the inserting groove of the casing and capable of rotating around the resisting portion of the resilient piece, a connecting terminal running through the retaining block to form an inserting portion and a projecting portion at opposite sides of the retaining block, the projecting portion being capable of compressing the resisting portion when the inserting portion is raised erectly to be exposed externally from the inserting groove; wherein the casing has a top board which is recessed partially to form a receiving recess communicating with the inserting groove, the receiving recess has a bottom portion defining a plurality of locating posts on a reverse side thereof, the locating portion of the resilient piece defines a plurality of locating holes for receiving the locating posts therein.