Arc sliding hinge

The utility model relates to the mechanical field, and provides an arc sliding hinge. The arc sliding hinge comprises a fixed base, an extension slider, a side baffle, four roller pins and bolts. The extension slider is embedded into a sliding groove of the fixed base; two roller pins are embedded into two roller pin troughs of the fixed base; another two roller pins are embedded into the roller pin troughs of the extension slider; then the side baffle is fixed on the fixed base by five bolts so as to block the extension slider in the sliding groove of the fixed base; the extension slider can slide in the sliding groove; the extension slider moves in the sliding groove of the fixed base to achieve a rotation angle of 0-110 degrees. According to computer motion simulation analysis of a plurality of movable covering caps and maintenance doors, the problem that a theoretical rotation shaft line of the covering cap is interfered with a structure often or the covering cap is interfered with the structure often because the theoretical shape of airplanes is complex or the structures around the air planes are more complex can be solved well by using the arc sliding hinge.