Patent ID: 8100060

Claim:
A dual-purpose table with revolving tabletop comprising: a tabletop, a table support, and two surfaces of the tabletop are different modes; centers of short frames on both sides of the tabletop pivot on at least one baffle means via pivot components, the at least one baffle means is fixed on upper ends of the table support; an overturn positioning device is located on the baffle means that turns over the tabletop, said over turn positioning device comprising: an exterior frame, the exterior frame includes a panel and a hollow frame protruded from a rear of the panel, and a groove is located in the center of the panel; a connecting bar assembly set in the groove, said connecting bar assembly comprising a wrench, a support bar and an driving bar, tail ends of sidewalls of the wrench being pivotally connected with tail ends of sidewalls of the hollow frame, a rear of the support bar being pivotally connected with centers of sidewalls of the hollow frame, two ends of the driving bar being pivotally connected with sidewalls of the wrench and side walls of the support bar respectively, and a horizontal position of the support bar is a dead center position of the connecting bar assembly; wherein pushing the wrench toward the groove causes the support bar to extend horizontally, and pulling the wrench out of the groove causes the support bar to be withdrawn into the groove.