Patent ID: 7967260

Claim:
A supporting structure having rod-linkage latching, comprises: a connecting unit having a top end and a bottom end, the top end is provided with a concave section having an accommodating space and a lateral end of the concave section has an opening; a base seat; a base seat hinge rotatably provided between the bottom end of the connecting unit and the base seat, at least one torsion spring is pivotally connected between the connecting unit and the base seat so a tilting angle of the connecting unit can be adjusted with respect to the base seat; a main hinge rotatably provided between the top end of the connecting unit and a main supporting rack; at least one rod-linkage mechanism provided parallel to the connecting unit and composed by top and bottom connecting rods which are parallel to each other, two ends of each of the connecting rods are respectively pivotally connected to the base seat hinge and the main hinge, and one of the two connecting rods is, with respect to the location of the accommodating space, radially and extrudedly provided with a tenon sheet; at least one rod-linkage latching device, a sheet-shaped latching member is pivotally connected to one end of the concave section, two ends of a resilient unit are respectively connected to the latching member and the concave section, so the latching member can elastically and retractably swings at the opening of the concave section, a pulling sheet is vertically extended from the free end of the latching member and the pulling sheet can reversely press the resilient unit, and a contacting concave slot capable of elastically contacting and receiving is formed at the outer end of the latching member; with the rotation movement of the connecting unit moving toward the base seat, the movement can be converted into a tilt movement of the main supporting rack, so the relative movement generated by the top and the bottom connecting rods allows the tenon sheet simultaneously moves, therefore the contacting concave slot of the latching member loses a stop from the tenon sheet then extends, and the tenon sheet is latched for forming a locking status, so the torsion spring disposed between the connecting unit and the base seat is pressed so an energy saving status is formed, and the connecting unit has a certain angle with respect to the base seat.