Prefabricated stairs modular assembly mold and assembling method thereof

Patent metadata

Field	Value
Publication number	US-11034054-B2
Application number	US-201917043686-A
Country	US
Kind code	B2
Filing date	Oct 8, 2019
Priority date	Nov 20, 2018
Publication date	Jun 15, 2021
Grant date	Jun 15, 2021

Abstract

A prefabricated stair modular assembly mold comprises 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 modules. Prefabricated stair molds of different dimensions are formed by means of locating holes provided in the assembling modules, and are then fixed by means of sliding holes at two ends. Further disclosed is a mounting method for said assembly mold. Said assembly mold has high positioning accuracy, and small accumulated error, improving the mounting efficiency of the prefabricated staircase mold.

First claim

What is claimed is:

1. 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.

2. The prefabricated stairs modular assembly mold according to claim 1 , wherein horizontal end surfaces of both the upside module of the lower platform and the upside module of the upper platform are provided with reserved holes, a sliding reserved hole is provided on a position that is on the horizontal end surface of the underside rotating module of the lower platform and that corresponds to the reserved hole on the upside module of the lower platform, a sliding reserved hole is provided on a position that is on the horizontal end surface of the underside rotating module of the upper platform and that corresponds to the reserved hole on the upside module of the upper platform; and a pin reserved hole module is provided on the reserved hole between the upside module of the lower platform and the underside rotating module of the lower platform, and a pin reserved hole module is provided on the reserved hole between the upside module of the upper platform and the underside rotating module of the upper platform.

3. The prefabricated stairs modular assembly mold according to claim 2 , wherein the locating holes on each of the upside module of the lower platform, the step standard module, the underside rotating module of the upper platform, and the underside rotating module of the lower platform are positioned at different height levels, the sliding holes on each of the upside module of the lower platform, the step standard module, the underside rotating module of the upper platform, and the underside rotating module of the lower platform are oblong holes provided on two sides of corresponding locating holes, and a distance between circle centers of two ends of the oblong hole is greater than or equal to a height difference between a highest locating hole and a lowest locating hole of the corresponding locating holes.

4. The prefabricated stairs modular assembly mold according to claim 1 , wherein a radian and a length of the curved sliding slot on the underside common module are determined according to a moving path of the underside common module.

5. The prefabricated stairs modular assembly mold according to claim 2 , wherein a radian and a length of the curved sliding slot on the underside common module are determined according to a moving path of the underside common module.

6. The prefabricated stairs modular assembly mold according to claim 3 , wherein a radian and a length of the curved sliding slot on the underside common module are determined according to a moving path of the underside common module.

7. An assembling method of a prefabricated stairs modular assembly mold, comprising the following steps:
step one: fixing a side end-plate of a upside module of a lower platform to a base by using bolts;
step two: selecting, according to a selected specification, locating holes of different for determining stair dimensions on a step standard modules, sequentially connecting the step standard modules from bottom to top and positioning the step standard modules by using the selected locating holes of the step standard modules, determining a quantity of the step standard modules according to a dimension of fabricated stairs, and fixing a side end-plate of each of the step standard modules to the base by using bolts;
step three: selecting a locating hole on an upside module of an upper platform based on a uniform stairs dimension according to the selected locating holes on the step standard modules, and fixedly connecting the upside module of the upper platform to a last level of the step standard module by using bolts and positioning the upside module of the upper platform by using the selected locating hole on the upside module of the upper platform;
step four: fixedly connecting the upside module of the upper platform to an underside rotating module of an upper platform by using bolts and positioning the underside rotating module of the upper platform by using a selected locating hole on the underside rotating module of the upper platform according to the uniform stairs dimension;
step five: fixing an underside rotating module of a lower platform to the upside module of the lower platform by using bolts and positioning the underside rotating module of the lower platform by using a selected locating hole on upside module of the lower platform according to the uniform stairs dimension, and fixing a side end-plate of the underside rotating module of the lower platform to the base by using bolts;
step

Assignees

• Univ China Mining
• China Mining & Civil New Material Science And Tech Ltd
• Boxia Mining Tech Ltd

Inventors

• Chang Hong
• Xia Junwu
• Xiang Xiaofang
• Bai Xia

Classifications

• E04G13/062 Primary

  for stairs or steps · CPC title

• E04F11/02

  Stairways; Layouts thereof · CPC title

• B28B7/02

  Moulds with adjustable parts {specially for modifying at will the dimensions or form of the moulded article} · CPC title

• B28B7/0014

  Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps (clamping means specially adapted for counteracting a pressure being applied on a slip or on the moulded article in the mould B28B1/266) · CPC title

• B28B7/225 Primary

  for making stairs or stair units comprising more than one step (in situ E04G13/06) · CPC title