Anti-loosening clamping device and photovoltaic power generation panel

The utility model discloses an anti-loosening clamping device and a photovoltaic power generation panel, which are applied to the field of photovoltaic power generation, a tensioning mechanism is mounted in a mounting groove, a pressing fastener is pulled and pressed through the tensioning mechanism, so that the pressing fastener is close to the mounting groove, the close pressing fastener is pressed on a pressing plate arranged on the side of a photovoltaic module, and the photovoltaic module is pressed and positioned; the pressing fastener is pressed on the pressing plate, the thickness of the pressing plate is small, and the degree of thermal expansion and cold contraction of the pressing plate in the thickness direction is small, so that when the phenomenon of thermal expansion and cold contraction of the photovoltaic module occurs, the extrusion force on the pressing fastener is small, the loosening of the pressing fastener can be avoided, and the loosening phenomenon caused by thermal expansion and cold