Unpowered self-closing smoke door device in sky rail operation

An unpowered self-closing smoke barrier device in sky rail operation comprises a fixing column, an outer frame plate is fixedly connected to the fixing column, a plurality of first hinged pipes are fixedly connected to the inner side of the outer frame plate, a hinge connecting plate is connected to the fixing plate, and the hinge connecting plate comprises two second hinged pipes fixedly connected to the upper end and the lower end of the inner side of the fixing plate. A plurality of arc-shaped groove pieces are fixedly connected between the two second hinge pipes, the inner side of each arc-shaped groove piece is fixedly connected with a third hinge pipe, and the outer sides of the two door plates are fixedly connected with a plurality of fourth hinge pipes; a first hinge pin is arranged in the first hinge pipe and the third hinge pipe in a penetrating mode, a second hinge pin is arranged in the second hinge pipe and the fourth hinge pipe in a penetrating mode, a first torsional spring is further arranged