| 摘要 |
A snap fastener for the electrical socket comprises a housing, a receptacle and snap fastener. When the knob of the snap fastener is being turned, the downward hump of the knob will drive the bulge of the brake plate to rotate and finally fall into the bottom recess of the brake plate and the fork of the brake plate will move downward to clamp the electrical blades of the plug in place. When the knob is turned in the reverse direction, the bulge of the snap will rise from the recess and push upward the fork of the brake plate, so the electrical blades of the plug get loose and are easy to leave the socket. Or a screw shank is used instead of the snap to move down or up the brake plate by turning the knob only.
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