A dust-proof and moisture-proof device for electrical appliance

A dust-proof and moisture-proof device for an electric appliance is provided, the device includes a box, roller, opening, heat-dissipating moisture-proof assembly and close fixing assembly, fixed seats are arranged at four edges and corners of the low end face of the box body, A round shaft is arranged inside the fixing seat, A roller is mounted on that annular side of the circular shaft, An opening is arrange on that right end face of the box body, A heat and moisture dissipation and prevention component is installed on the upper end of the box body, A closed fixing assembly is installed at that low end of the box body, the heat-dissipating moisture-proof assembly includes a circular hole, Mesh box, boom, Cover plate, small cylinder, Large cylinders, cooling fans, air port, filter screen,The closed fixing assembly comprises a baffle plate, a stopper, a moving rod, a spring I, a disk, a bracket, a fixing rod, a pressing rod, a blind hole, a soft rubber cushion and a spring II. Compared with the prior art, the