| 摘要 |
The present invention relates to an anti-loose socket and a pull-out locking mechanism thereof, wherein inside the anti-loose socket there are fitted a bevelled sleeve (15) and a pull-out locking mechanism composed of two cylinders (16) arranged in a symmetrical manner at two sides in the bevelled sleeve; an inside longitudinal section of the bevelled sleeve has a cone angle in an umbrella shape, the middle of which allows a plug pin (61) to pass through; the cylinder is fitted on a floating block (14) movable up and down, and can move up and down along the inside cone of the bevelled sleeve driven by the floating block. When a plug (6) is pulled out upward, the cylinder moves up under the action of friction and a spring force, but due to the limiting action of the bevel, the cylinder becomes wedged more and more tightly between two bevels so as to become self-locking, such that the plug cannot be pulled out or cannot be easily pulled out; after the cylinder has been made to fall, the plug can be conveniently pulled out. |
