Top-mounted motor home skylight

Two sides of skylight glass are respectively supported on two side frames by lifting arms through two mechanical groups, each mechanical group comprises a driving block, a front support arm, a connecting rod, a rear support arm, a rear rotating arm, a rear guide seat and a rear fixing seat, and the outer side wall of each driving block is connected with a driving rack. The rear portion of the front supporting arm penetrates through a front driving pin arranged in a driving groove in the outer side wall of the driving block, the inner side wall of the driving block is provided with a pull-off groove with a forward opening and a pull-off table, the front end of the connecting rod is provided with a pull-off pin and a horizontal pull-off kidney-shaped hole, the rear end of the connecting rod is provided with a push-pull middle groove, the front portion of the rear supporting arm penetrates through a rear driving pin arranged in the push-pull middle groove, and the rear end of the rear supporting arm is hinged to