Prefabricated stairs modular assembly mold and assembling method thereof

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.

CROSS-REFERENCE TO RELATED APPLICATION

This application is a 371 application of the international PCT application serial no. PCT/CN2019/109901, filed on Oct. 8, 2019, which claims the priority benefit of China application no. 201811383173.0, filed on Nov. 20, 2018. The entirety of each of the abovementioned patent applications is hereby incorporated by reference herein and made a part of this specification.

BACKGROUND

Technical Field

The present invention relates to a stairs mold, and specifically, to a prefabricated stairs modular assembly mold and an assembling method thereof, and relates to the technical field of stairs molds.

Description of Related Art

With the process of construction industrialization being vigorously promoted in China, a lot of fabricated concrete structures are being built. The fabricated concrete structure is to manufacture corresponding prefabricated components of a building at the processing plant, and then the prefabricated components are transported to the site for assembly. Fabricated stairs are one of the most common split components in the fabricated concrete structure. Compared with a conventional cast-in-place stairs structure, the fabricated stairs can achieve advantages of short construction duration, high efficiency, and accessibility. However, the current design for the fabricated concrete structure has not reached a forward design, and a conventional design method is mainly used to design the concrete structure and then the concrete structure is split, which causes excessive dimensions of the prefabricated stairs. One stairs mold is required for stairs of one dimension. Therefore, a manufacturer of fabricated components needs to prepare a lot of molds, and molds of a certain specification may be used only once. The increase in mold cost increases running cost of the manufacturer, and is not beneficial to promote the fabricated structure.

SUMMARY

To overcome disadvantages in the prior art, the present invention provides a prefabricated stairs modular assembly mold and an assembling method thereof. A mold may be used to implement assembly of stairs of a plurality of specifications specified in the existing construction standards. In addition, high precision, convenient assembly, and high efficiency are achieved, thereby greatly reducing costs of a manufacturer and effectively shortening construction duration.

To achieve the foregoing objective, a prefabricated stairs modular assembly mold in the present invention includes 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, where:

fixing bolts for assembling the flight modules are provided on the base, and the upside module of the lower platform is the flight module at the bottom, where several fixing holes are provided on a side end-plate connected to the base, several locating holes and sliding holes are provided on a vertical end surface connected to the step standard module above, and several fixing holes are provided on a horizontal end surface 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 lower platform includes a horizontal fixing section and a sloping rotation section, where 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 the lower step standard module, and several locating holes and sliding holes are provided on a vertical end surface connected to the 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 lower 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 underside rotating module of the upper platform includes a horizontal fixing section and a sloping rotation section, where the horizontal fixing section and the sloping rotation section are hinged by using a rotating shaft; and

the adjustment module includes 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 connected to the base.

The upside module of the lower platform determines a step stair dimension by using the locating holes, and is fixed to the upper step standard module by using the sliding holes. The upside module of the lower platform is connected to the base by using the side fixing holes and is connected to the underside rotating module of the lower platform by using the bottom fixing holes. The step standard module determines a step stair dimension by using the locating holes, and is sequentially connected to the step standard modules by using the sliding holes, where the step standard module can move along the sliding slot and be fixed to the base by using bolts. The upper platform upside module is respectively connected to the step standard module and the upper platform underside rotating module by using fixing holes at two ends. The underside rotating module of upper platform determines a horizontal dimension of the upper platform underside by using locating holes, and is connected to the upside module of the upper platform. By rotating the rotating shaft, an angel between the upper platform horizontal plane and the flight incline may be adjusted, and the underside rotating module of the upper platform is connected to the flight underside adjustment module by using fixing holes. The underside rotating module of the lower platform determines a horizontal dimension of the lower platform underside by using locating holes, and is connected to the base and the upside module of the lower platform. An angel between the lower platform horizontal plane and the flight incline is adjusted by using the rotating shaft, and the underside rotating module of the lower platform is connected to the flight underside common module by using fixing holes. The flight underside common module is respectively connected to the underside rotating module of the lower platform and the flight underside adjustment module by using the fixing holes on two sides, moving and rotation of the flight underside common module are implemented by using the curved sliding slots, and the flight underside common module is fixed to the base by using bolts.

Further, 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 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.

The pin reserved hole module is configured to form assembling key slots during vertical casting.

Further, the pilot holes of different heights on 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 respectively correspond to stair dimensions of different specifications, the sliding holes are oblong holes provided on two sides of the 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 the highest locating hole and the lowest locating hole.

For prefabricated stairs of different stair specifications, pilot holes of different heights are selected for positioning, and then sliding holes at the two ends are used for assembling and fixing.

Further, a radian and a length of each curved sliding slot on the underside common module are determined according to a moving path of the underside common module.

An assembling method of a prefabricated stairs modular assembly mold includes the following steps:

step one: fixing a side end-plate of an upside module of a lower platform to a base by using bolts;

step two: selecting, according to a selected specification, locating holes with different stair dimensions, sequentially connecting step standard modules from bottom to top, determining a quantity of the step standard modules according to a dimension of fabricated stairs, and fixing a side end-plate of the base of the step standard modules to the base by using bolts;

step three: selecting a uniform stair dimension according to the locating hole on the step standard module, and fixedly connecting an upside module of the upper platform to the last level of step standard module by using bolts;

step four: fixedly connecting the upside module of the upper platform to an underside rotating module of the upper platform according to the locating hole on the underside rotating module of the upper platform by using bolts;

step five: fixing a underside rotating module of the lower platform to the upside module of lower platform according to the locating hole on the upside module of the lower platform by using bolts, and fixing a side end-plate of the underside rotating module to the base by using bolts;

step six: connecting a flight underside common module to the underside rotating module of the lower platform by using bolts;

step seven: selecting a corresponding quantity of flight underside adjustment modules according to a stairs dimension and sequentially connecting the flight underside adjustment modules, where the underside adjustment module at the top is fixedly connected to the underside rotating module of the upper platform by using bolts, and the underside adjustment module at the bottom is fixedly connected to the underside common module by using bolts;

step eight: adjusting an angle by using the upper platform underside rotating module and the lower platform underside rotating module, determining positions of the flight underside common module and the flight underside adjustment modules, and fixing the underside common module to the base by using bolts; and

step nine: respectively fixing four pin reserved hole modules to holes on the upside module of the lower platform and the upside module of the upper platform.

The present invention may form prefabricated stairs with different stair dimensions by using locating holes provided on each assembly flight, and then sliding holes on two sides are used for fixing and limiting. Compared with molds that are adjusted by using sliding holes in the prior art, locating precision is higher, an accumulative error is smaller, so that a rework rate is greatly decreased, and assembling efficiency of prefabricated stairs is improved. The underside rotating module of the lower platform and the underside rotating module of the upper platform may perform angle adjustment by using a rotatable rotating shaft connected between them, and curved sliding slots with different lengths are provided on the underside common module to adjust the angle of the stairs, which greatly simplifies an assembling process. In addition, the plane uses underside common module at one end and several underside adjustment modules to meet requirements of stairs with different lengths. By means of position adjustment and quantity change of different modules, fabricated stairs molds of a plurality of dimensions may be assembled, so that that a set of molds can basically meet stairs dimensions of different specifications and models required by the standards, thereby simplifying an assembling procedure, improving assembling precision, reducing manufacturing costs, and shortening construction duration.

DESCRIPTION OF EMBODIMENTS

The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.

As shown inFIG. 1toFIG. 13, a prefabricated stairs modular assembly mold includes a base1, a step standard module3, an upside module of a lower platform2, an underside rotating module of a lower platform6, an upside module of an upper platform4, an underside rotating module of an upper platform5, an underside common module7, and an underside adjustment module8; where

fixing bolts for assembling the flight modules are provided on the base1, and the upside module of the lower platform2is the flight module at the bottom, where several fixing holes13are provided on a side end-plate connected to the base1, several locating holes12and sliding holes11are provided on a vertical end surface connected to the step standard module3above, and several fixing holes13are provided on a horizontal end surface connected to the lower platform underside rotating module6;

for the lower platform underside rotating module6, several sliding holes11are provided on a side end-plate connected to the base, several locating holes12and sliding holes11are provided on a horizontal end surface connected to the upside module of the lower platform2, and several fixing holes13are provided on an end surface connected to the underside common module7; and the underside rotating module of the lower platform6includes a horizontal fixing section and a sloping rotation section, where the horizontal fixing section and the sloping rotation section are hinged by using a rotating shaft17;

for the step standard module3, a sliding slot15is provided on a side end portion connected to the base, several fixing holes13are provided on a vertical end surface connected to the lower step standard module3, and several locating holes12and sliding holes11are provided on a vertical end surface connected to the upper step standard module3;

for the upside module of the upper platform4, several fixing holes13are provided on a vertical end surface connected to the step standard module3, and several fixing holes13are provided on a horizontal end surface connected to the lower underside rotating module of the upper platform5;

for the underside rotating module of the upper platform5, several locating holes12and sliding holes11are provided on a horizontal end surface connected to the upside module of the upper platform4, and several fixing holes13are provided on an end surface connected to the underside adjustment module8; and the upper platform underside rotating module5includes a horizontal fixing section and a sloping rotation section, where the horizontal fixing section and the sloping rotation section are hinged by using a rotating shaft17; and

the adjustment module8includes 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 module7is a fixed-length module, and a curved sliding slot18is provided on a side end-plate connected to the base.

The upside module of the lower platform2determines a step stair dimension by using the locating holes, and is fixed to the upper step standard module3by using the sliding holes11. The upside module of the lower platform2is connected to the base by using the side fixing holes13and is connected to the underside rotating module of the lower platform6by using the bottom fixing holes13. The step standard module3determines a step stair dimension by using the locating holes12, and is sequentially connected to the step standard modules3by using the sliding holes11, where the step standard module can move along the sliding slot15and be fixed to the base1by using bolts. The upside module of the upper platform4is respectively connected to the step standard module3and the underside rotating module of the upper platform5by using fixing holes at two ends. The underside rotating module of the upper platform5determines a horizontal dimension of the upper platform underside by using locating holes12, and is connected to the upside module of the upper platform4. By rotating the rotating shaft17, an angel between the upper platform horizontal plane and the flight incline may be adjusted, and the underside rotating module of the upper platform5is connected to the flight underside adjustment module8by using fixing holes13. The underside rotating module of the lower platform6determines a horizontal dimension of the lower platform underside by using locating holes12, and is connected to the base1and the lower platform upside module2. An angel between the lower platform horizontal plane and the flight incline is adjusted by using the rotating shaft17, and the underside rotating module of the lower platform6is connected to the flight underside common module7by using fixing holes13. The flight underside common module7is respectively connected to the underside rotating module of the lower platform6and the flight underside adjustment module8by using the fixing holes13on two sides, moving and rotation of the flight underside common module7are implemented by using the curved sliding slots, and the flight underside common module7is fixed to the base1by using bolts.

As shown inFIG. 1toFIG. 3,FIG. 5, andFIG. 8toFIG. 11, horizontal end surfaces of both the upside module of the lower platform2and the upside module of the upper platform4are provided with reserved holes14, a sliding reserved hole16is provided on a position that is on the horizontal end surface of the underside rotating module of the lower platform6and that corresponds to the reserved hole14on the upside module of the lower platform2, a sliding reserved hole16is provided on a position that is on the horizontal end surface of the underside rotating module of the upper platform5and that corresponds to the reserved hole14on the upside module the upper platform4; and a pin reserved hole module9is provided on the reserved hole between the upside module of the lower platform2and the underside rotating module of the lower platform6, and a pin reserved hole module9is provided on the reserved hole between the upside module of the upper platform4and the underside rotating module of the upper platform5.

The pin reserved hole module9is configured to form assembling key slot during vertical casting.

Further, the locating holes12of different heights on the upside module of the lower platform2, the step standard module3, the underside rotating module of the upper platform5, and the underside rotating module of the lower platform6respectively correspond to stair dimensions of different specifications, the sliding holes11are oblong holes provided on two sides of the locating holes12, and a distance between two circle centers of two ends of the oblong hole is greater than or equal to a height difference between the highest locating hole and the lowest locating hole.

For prefabricated stairs of different stair specifications, locating holes12of different heights are selected for positioning, and then sliding holes11at the two ends are used for assembling and fixing.

Further, a radian and a length of each curved sliding slot18on the underside common module7are determined according to a moving path of the underside common module7.

An assembling method of a prefabricated stairs modular assembly mold includes the following steps:

step one: fixing a side end-plate of an upside module of a lower platform2to a base1by using bolts10;

step two: selecting, according to a selected specification, locating holes with different stair dimensions, sequentially connecting step standard modules3from bottom to top, determining a quantity of the step standard modules3according to a dimension of fabricated stairs, and fixing a side end-plate of the base1of the step standard modules3to the base by using bolts10;

step three: selecting a uniform stair dimension according to the locating hole on the step standard module3, and fixedly connecting an upside module of an upper platform4to the last level of step standard module3by using bolts10;

step four: fixedly connecting the upside module of the upper platform4to an underside rotating module of an upper platform5according to the locating hole on the underside rotating module of the upper platform5by using bolts10;

step five: fixing an underside rotating module of a lower platform6to the upside module of the lower platform2according to the locating hole on the upside module of the lower platform2by using bolts10, and fixing a side end-plate of the underside rotating module6to the base by using bolts10;

step six: connecting a flight underside common module7to the underside rotating module of the lower platform6by using bolts10;

step seven: selecting a corresponding quantity of flight underside adjustment modules8according to a stairs dimension and sequentially connecting the flight underside adjustment modules8, where the underside adjustment module8at the top is fixedly connected to the underside rotating module of the upper platform5by using bolts10, and the underside adjustment module8at the bottom is fixedly connected to the underside common module7by using bolts10;

step eight: adjusting an angle by using the underside rotating module of the upper platform5and the underside rotating module of the lower platform6, determining positions of the flight underside common module7and the flight underside adjustment modules8, and fixing the underside common module7to the base by using bolts10; and

step nine: respectively fixing four pin reserved hole modules9to holes on the upside module of the lower platform2and the upside module of the upper platform4.