Freely rotational receptacle

A freely rotational receptacle, comprising:

• an upper casing member, having a hollow space;
• a receptacle body, being placed in the hollow space with a plurality of locating holes at the surface thereof;
• a terminal set, being placed below the fitting holes;
• a first contact ring, extending downward a first ring projection;
• a second contact ring, extending downward a second ring projection;
• a relay seat, providing a plurality of locating holes to be inserted with and hold the terminal set, the first contact ring and the second contact ring, being passed through with a first locating projection and a second locating projection and forming a first recess chamber and a second recess chamber at the bottom thereof;
• and
• a lower casing member, being hollow to receive the relay seat, providing a first annular groove and a second annular groove with a groove gap respectively, having a first hole and a second hole below the groove gaps respectively;
• wherein, the first annular groove and the second annular groove receive the first contact ring and the second contact ring respectively and the ring projections extend outward the lower casing member via the first hole and the second hole respectively;
• whereby, the receptacle body, the terminal set, the first contact ring, the second contact ring, the relay seat and the upper casing member are assembled to the lower casing member to allow the receptacle body rotating freely in a space formed by the upper and lower casing member to perform power supply.