A prefabricated stairs modular assembly mold, comprising a base, a step standard module, an upside module of a lower platform, an underside rotating module of a lower platform, an upside module of an upper platform, an underside rotating module of an upper platform, an underside common module, and an underside adjustment module, wherein
- fixing bolts for assembling flight modules comprising the step standard module, the upside module of the lower platform, the underside rotating module of the lower platform, the upside module of the upper platform, the underside rotating module of the upper platform, the underside common module, and the underside adjustment module are provided on the base, and the upside module of the lower platform is a bottom flight modules among the flight modules, wherein several fixing holes are provided on a side end-plate of the upside module of the lower platform connected to the base, several locating holes and sliding holes are provided on a vertical end surface of the upside module of the lower platform connected to the step standard module, and several fixing holes are provided on a horizontal end surface of the upside module of the lower platform connected to the underside rotating module of the lower platform;
- for the underside rotating module of the lower platform, several sliding holes are provided on a side end-plate connected to the base, several locating holes and sliding holes are provided on a horizontal end surface connected to the upside module of the lower platform, and several fixing holes are provided on an end surface connected to the underside common module;
- and the underside rotating module of the lower platform comprises a horizontal fixing section and a sloping rotation section, wherein the horizontal fixing section and the sloping rotation section are hinged by using a rotating shaft;
- for the step standard module, a sliding slot is provided on a side end portion connected to the base, several fixing holes are provided on a vertical end surface connected to a lower step standard module, and several locating holes and sliding holes are provided on a vertical end surface connected to an upper step standard module;
- for the upside module of the upper platform, several fixing holes are provided on a vertical end surface connected to the step standard module, and several fixing holes are provided on a horizontal end surface connected to the underside rotating module of the upper platform;
- for the underside rotating module of the upper platform, several locating holes and sliding holes are provided on a horizontal end surface connected to the upside module of the upper platform, and several fixing holes are provided on an end surface connected to the underside adjustment module;
- and the upper platform underside rotating module comprises a horizontal fixing section and a sloping rotation section, the horizontal fixing section and the sloping rotation section are hinged by using a rotating shaft;
- and
- the adjustment module comprises several sections of adjustment plates of different widths, and a length of an underside of the prefabricated stairs is adjusted through different splicing;
- and
- the common module is a fixed-length module, and a curved sliding slot is provided on a side end-plate of the common module connected to the base.