Connection device for latching and releasing a socket

A connection device for latching and releasing a socket, comprising:

• a main body having a front end as an insertion end, the main body being formed with an internal axial slide passage;
• a through hole being formed on a circumference of the insertion end in communication with the slide passage;
• a slide rod mounted in the slide passage of the main body and slidable along the slide passage between an engaging position and a releasing position;
• a slope being formed on a front end of the slide rod corresponding to the through hole;
• an engaging column, which is a column body mounted in the through hole of the main body and displaceable along the through hole;
• a contact face being formed at a bottom end of the engaging column, the contact face snugly attaching to the slope of the slide rod;
• a pressed face being formed at a top end of the engaging column, the pressed face gradually uprising from a front side to a rear side;
• and
• a resilient member disposed in the main body, the resilient member serving to resiliently abut against the slide rod and urge the slide rod to move toward the engaging position, whereby the slope approaches the engaging column to push the engaging column outward and make the top end of the engaging column protrude out of the main body;
• when the slide rod is displaced toward the releasing position, the slope being moved away from the engaging column and the top end of the engaging column being moved into the main body.