Photovoltaic module and double-spliced C-shaped steel connecting device

The utility model discloses a photovoltaic module and double-spliced C-shaped steel connecting device, aims to provide a C-shaped steel connecting device with a centered and stable stress point, and can effectively solve the problems that the C-shaped steel connecting device is unstable in structure and has hidden danger of overturning. The double-spliced C-shaped steel connecting structure comprises double-spliced C-shaped steel and a variable cross-section U-shaped connecting piece, the double-spliced C-shaped steel is formed by matching the backs of two C-shaped steel, a threaded hole is formed in the double-spliced C-shaped steel, a threaded hole is also formed in the variable cross-section U-shaped connecting piece, and the variable cross-section U-shaped connecting piece and the double-spliced C-shaped steel are connected through a fixing screw. A photovoltaic module is placed on the variable cross-section U-shaped connecting piece, the variable cross-section U-shaped connecting piece is connected with