Patent attributes
An engagement structure of a connection system contains: a holder, a movable fixer, an actuation protrusion, a connection rod, and an adjustment member. The holder includes a first connecting segment, a first positioning groove, a receiving groove, a rotation space, two coupling orifices, and a locating orifice. The movable fixer includes a sliding portion, a defining portion, a guide groove, a through hole, a second connecting segment, a second positioning groove, and a locking chamber defined between the first positioning groove and the second positioning groove. The actuation protrusion includes a rotatable joining segment, a trench, two first accommodation orifices, two second accommodation orifices, two spaced distances, and a driving segment. The connection rod includes a rotary knob, a threaded section, a rotatable connecting orifice, and a trough. Also, the adjustment member includes a screwing section and a notch.
