Patent ID: 7530608

Claim:
A locking/releasing apparatus, comprising: a positioning mechanism, protruded from a bottom plate of a fastener and having a positioning rod and a first stopping element being disposed at external periphery of the positioning rod; a positioning tenon protruded from a side of the positioning mechanism and having a second stopping element positioned at external periphery of the positioning tenon; a locking element, pivotally coupled to said positioning rod and having a guiding gap disposed between a slanting guiding rim and a blocker, and an aslant expanded sliding rim being disposed on another side of said guiding rim, and an inwardly concave guiding gap being disposed between an end of said sliding rim and an end of said guiding rim, and a concave bent slot channel being formed, and a blocking sheet being extended downward from the bottom of said locking element; a positioning spring having two ends and a positioning spring hole wherein a pillar stripe is being engaged, the positioning spring also being engaged with said positioning rod and having one of the two ends pressing against said first stopping element and the other end pressing against said blocking sheet; a releasing spring having a releasing spring hole wherein the positioning tenon is being engaged, the releasing spring also being engaged with said positioning tenon and having both ends pressing against said second stopping element and said blocking sheet; and a protruding pillar, disposed at bottom of a movable member, wherein when said movable member is pushed into said fastener, said protruding pillar presses said guiding rim to rotate said locking element and drive said positioning spring to store energy, and said protruding pillar enters into said slot channel from said guiding gap, and said positioning spring releases energy to rotate said locking element in an opposite direction and move said protruding pillar to said guiding concave to be blocked; and when said movable member is pushed inward further, said protruding pillar is separated from said guiding concave and positioned at an end of said sliding rim, and said positioning spring releases energy to rotate said locking element in an opposite direction, and said movable member is pulled outward to make said protruding pillar press said sliding rim to let said releasing spring store energy, and said releasing spring releases energy to rotate said locking element to initial position of the locking element until said protruding pillar leaves said sliding rim.