CN222500845U - Assembled stair - Google Patents

Abstract

The application relates to an assembled stair. The ladder comprises a ladder beam, a plurality of first connecting holes, ladder plates, first connecting pieces and first connecting pieces, wherein the ladder plates comprise a bottom ladder plate, a plurality of middle ladder plates and a top ladder plate, the bottom ladder plate is located at the bottom of the ladder beam, the top ladder plate is located at the top of the ladder beam, the middle ladder plate is located between the bottom of the ladder beam and the top of the ladder beam, two grouting grooves are respectively formed from the back surface of a vertical part of the bottom ladder plate to the bottom of a plane part of the bottom ladder plate, two grouting grooves are respectively formed from the back surface of the vertical part of the middle ladder plate to the bottom of the plane part of the middle ladder plate, the first connecting pieces are respectively embedded in each grouting groove and are arranged at the bottom of the top ladder plate, the first connecting pieces at the bottom of the middle ladder plate are used for being inserted into the first connecting holes corresponding to the first connecting pieces. The stair is low in dead weight, the first connecting piece at the connecting position can be hidden, and the stair is attractive in appearance.

Description

Assembled stair

Technical Field

The embodiment of the application relates to the technical field of building construction, in particular to an assembled stair.

Background

The stairs are used as important vertical transportation junction of the building and are also one of the components with the greatest construction difficulty of the components in the field construction process. In the current construction site, the cast-in-situ stair template is used in a large number and is complicated, the template waste amount is large, the stair size site is difficult to control, the on-site labor force demand is large, and the structural strength of the stair is difficult to ensure due to the application of a large number of scaffolds and template supporting tools.

Along with the slowing of the building industry, the demand of exquisite building is pulled up gradually, and the application of traditional scissors ladder gradually reduces, and the application of two running board formula stairways is more and more extensive. However, the following problems still remain with double-deck stairways:

The ladder beam is relatively complex in structure and overall weight, the ladder beam is relatively complex to manufacture, the manufacturing period is long, the splicing seams are easy to observe during use, and the appearance is influenced. The ladder plate assembly parts are more, the manufacture is relatively complex, the assembly is complex, the screw fixing end is easy to see during the use, the appearance is also influenced, and the durability of the structure for long-time use is required to be checked.

Accordingly, there is a need to improve one or more problems in the related art as described above.

It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the application and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of utility model

It is an aim of embodiments of the present application to provide a fabricated stairway which overcomes, at least to some extent, one or more of the problems due to the limitations and disadvantages of the related art.

According to a first aspect of an embodiment of the application, there is provided a fabricated stairway comprising:

A ladder beam provided with a plurality of first connecting holes;

The ladder plate is positioned on the ladder beam and comprises a bottom ladder plate, a plurality of middle ladder plates and a top ladder plate, wherein the bottom ladder plate is positioned at the bottom of the ladder beam, the top ladder plate is positioned at the top of the ladder beam, and the middle ladder plate is positioned between the bottom of the ladder beam and the top of the ladder beam;

The first connecting pieces are respectively embedded in each grouting groove and the bottom of the top ladder plate, the first connecting pieces at the bottom of the middle ladder plate are used for being inserted into the first connecting holes corresponding to the first connecting pieces, the first connecting pieces at the bottom of the bottom ladder plate are used for being inserted into the first connecting holes corresponding to the first connecting pieces, and the first connecting pieces at the bottom of the top ladder plate are inserted into the first connecting holes corresponding to the first connecting pieces; the grouting device comprises a bottom ladder plate, a grouting groove, a middle ladder plate, a grouting groove, a grouting hole and a grouting hole, wherein the bottom of the bottom ladder plate is used for being inserted into the corresponding first connecting hole, and the grouting groove is used for grouting slurry when the first connecting piece of the bottom ladder plate is used for being inserted into the corresponding first connecting hole;

Second connecting holes are respectively formed in the top ladder plate and the bottom ladder plate, the second connecting holes in the top ladder plate are connected with the corresponding first connecting holes in the ladder beam through second connecting pieces, and the second connecting holes in the bottom ladder plate are connected with the corresponding first connecting holes in the ladder beam through second connecting pieces

In one embodiment of the present application, the ladder beam has a shape of a chamfer zigzag.

In an embodiment of the application, the first connecting piece is a round head fixedly connected with a metal long rod, or the first connecting piece is a cross head fixedly connected with a metal long rod.

In an embodiment of the application, the diameter of the cross-shaped head or the round head of the first connecting piece is 20-50 mm, the length of the metal long rod is 70-90 mm, the diameter of the metal long rod is 8-16 mm, and the surface of the metal long rod is ribbed.

In an embodiment of the application, the first connecting piece head at the bottom of the middle ladder plate is embedded into the grouting groove by 10-40 mm, the first connecting piece head at the bottom of the bottom ladder plate is embedded into the grouting groove by 10-40 mm, the first connecting piece head at the bottom of the top ladder plate is embedded into the top ladder plate, and the metal long rod is outside.

In one embodiment of the application, the width of the section of the ladder beam is 100 mm-150 mm, and the height of the ladder beam is 120 mm-240 mm.

In an embodiment of the application, the diameter of the first connecting hole is 20-50 mm, and the depth of the first connecting hole is 50-90 mm.

In one embodiment of the present application, the middle step and the top step are respectively provided with an anti-slip strip.

In one embodiment of the present application, the top step is I-shaped.

According to the stair, on one hand, the weight of the stair is reduced by adopting the stair plates and the stair beams, the first connecting pieces in the grouting grooves of the bottom stair plates are inserted into the corresponding first connecting holes in the stair beams to be assembled, the first connecting pieces in the grouting grooves of the middle stair plates are inserted into the corresponding first connecting holes in the stair beams to be assembled, and the first connecting pieces of the top stair plates are assembled with the corresponding first connecting holes in the stair beams. The first connecting piece is inserted into the first connecting hole in an assembling mode, so that the purpose of hiding the first connecting piece is achieved, the front face cannot be seen, and the appearance is good. On the other hand, the first connecting piece of bottom riser inserts the junction of first connecting hole, the junction that the first connecting piece of middle riser inserted first connecting hole fills the thick liquids through the grout groove, has guaranteed that the tie point is not hard up, has increased and has assembled intensity. In addition, the assembling mode of the ladder plate and the ladder beam is simple and convenient to operate, so that the assembling construction period is shortened.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application. It is evident that the drawings in the following description are only some embodiments of the present application and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.

Fig. 1 shows a schematic structural view of a fabricated stairway in accordance with an exemplary embodiment of the application;

fig. 2 is a schematic view showing the structure of a bottom step in an exemplary embodiment of the present application;

FIG. 3 is a schematic view showing the structure of a middle step plate according to an exemplary embodiment of the present application;

FIG. 4 shows a schematic view of the structure of a top riser in an exemplary embodiment of the application;

FIG. 5 is a schematic view showing the structure of the middle step with vertical portions broken away in an exemplary embodiment of the present application;

FIG. 6 shows a schematic view of a ladder plate to be connected with a ladder beam in an exemplary embodiment of the application;

FIG. 7 illustrates a schematic view of the connection of a ladder plate to a ladder beam in accordance with an exemplary embodiment of the application;

FIG. 8 illustrates a top view of a middle riser in an exemplary embodiment of the application;

FIG. 9 shows a schematic view of grouting material after the intermediate deck is connected to the ladder beam in an exemplary embodiment of the application;

Fig. 10 shows a schematic view of the construction of a ladder beam in an exemplary embodiment of the application;

FIG. 11 is a schematic view showing the structure of a cross-shaped head of a first connector in an exemplary embodiment of the application;

Fig. 12 is a schematic view showing the structure of the first connector in the form of a circular head in the exemplary embodiment of the present application.

100 Parts of ladder beams, 110 parts of first connecting holes, 200 parts of ladder boards, 210 parts of bottom ladder boards, 220 parts of middle ladder boards, 230 parts of top ladder boards, 300 parts of first connecting pieces, 400 parts of grouting grooves, 500 parts of second connecting holes, 600 parts of anti-skid strips, 700 parts of grouting materials and 800 parts of grouting openings.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many different forms and should not be construed as limited to the examples set forth herein, but rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

In this example embodiment, there is first provided a fabricated stairway. Referring to fig. 1, the fabricated stairway includes a ladder beam 100 and a ladder plate 200. Wherein, the ladder beam 100 is provided with a plurality of first connection holes 110; the bottom ladder plate (210) is positioned at the bottom of the ladder beam (100), the top ladder plate (230) is positioned at the top of the ladder beam (100), the middle ladder plate (220) is positioned between the bottom of the ladder beam (100) and the top of the ladder beam (100), wherein the bottom ladder plate (210) and the middle ladder plate (220) are both L-shaped, two grouting grooves (400) are respectively formed from the back surface of the vertical part of the bottom ladder plate (210) to the bottom of the plane part of the bottom ladder plate (210), two grouting grooves (400) are respectively formed from the back surface of the vertical part of the middle ladder plate (220) to the bottom of the plane part of the middle ladder plate (220), first connecting pieces (300) are respectively embedded in each grouting groove (400) and are respectively arranged at the bottom of the top ladder plate (230), the bottom of the middle ladder plate (220) and the first connecting pieces (300) are used for being inserted into the corresponding first connecting holes (110), the bottom of the middle ladder plate (220) and the first connecting pieces (300) are used for being inserted into the corresponding first connecting holes (110), when the first connecting pieces (300) of the bottom ladder plate (210) and the bottom of the middle ladder plate (210) are inserted into the corresponding first connecting holes (110) and the first connecting holes (300) are respectively arranged between the bottom of the first connecting plates (300) and the bottom of the top ladder plate (210) and the top plate (210) and the first connecting holes (300) and the bottom of the middle plate (300) and the top plate (300) and the bottom connecting holes (110) when the first connecting pieces (300) are respectively) and the bottom connecting holes (300) and the bottom connecting holes (110) and the bottom, the second connection holes 500 of the bottom ladder plate 210 are connected with the corresponding first connection holes 110 of the ladder beam 100 by means of second connection members.

It will be appreciated that with reference to fig. 1, 6, 7, 8 and 9, when the bottom riser 210 is installed in the bottom position of the ladder beam 100, the edge of the bottom riser 210 is aligned with the edge of the bottom position of the ladder beam 100. The top of the grouting groove 400 at the back of the bottom step 210 and the corresponding position of the ladder beam 100 form a grouting port 800, and the grouting port 800 at the bottom step 210 communicates with the grouting groove 400 at the back of the bottom step 210 and the grouting groove 400 at the bottom of the bottom step 210. As shown in fig. 8, the top of the grouting grooves 400 on the back of the middle step 220 and the corresponding position of the ladder beam 100 form a grouting port 800, and the grouting port 800 at the middle step 220 communicates with the grouting grooves 400 on the back of the middle step 220 and the grouting grooves 400 on the bottom of the middle step 220.

As shown in fig. 2, 6, 7, 8 and 9, when the first connection member 300 in the grouting groove 400 on the bottom of the bottom step 210 is inserted into the corresponding first connection hole 110 on the ladder beam 100 to be assembled, and the second connection rod is inserted into the first connection hole 110 on the bottom step 210 and the second connection hole 500 at the corresponding position of the ladder beam 100, grouting is performed through the grouting opening 800 at the bottom step 210, and then the grouting flows into the grouting groove 400 on the back of the bottom step 210 and the grouting groove 400 on the bottom of the bottom step 210. The first connection piece 300 in the grouting groove 400 on the bottom of the bottom ladder plate 210 is hidden by inserting the first connection piece 300 in the grouting groove 400 on the bottom of the bottom ladder plate 210 into the corresponding first connection hole 110 on the ladder beam 100 for assembly. Meanwhile, the first connector 300 of the bottom ladder plate 210 is inserted into the connection portion of the first connection hole 110 to be filled with slurry through the grouting grooves 400, so that the connection point is not loosened, and the assembly strength is increased. The second connecting rod is inserted into the first connecting hole 110 on the bottom step plate 210 and the second connecting hole 500 at the corresponding position of the ladder beam 100, so that a better fastening effect is achieved when the bottom step plate 210 is mounted with the ladder beam 100.

As shown in fig. 3, 5, 8 and 9, when the installation of the bottom step 210 is completed, the first connection members 300 in the grouting grooves 400 on the bottom of the middle step 220 are inserted into the corresponding first connection holes 110 on the ladder beam 100 while grouting slurry is performed through the grouting openings 800 at the middle step 220, and then the slurry flows into the grouting grooves 400 on the rear surface of the middle step 220, the grouting grooves 400 on the bottom of the middle step 220. The present application achieves the purpose of hiding the first connection member 300 in the grouting groove 400 on the bottom of the middle step 220 by inserting the first connection member 300 in the grouting groove 400 on the bottom of the middle step 220 into the corresponding first connection hole 110 on the ladder beam 100. Meanwhile, the first connector 300 of the middle step 220 is inserted into the connection portion of the first connection hole 110 to be filled with slurry through the grouting grooves 400, so that the connection point is not loosened, and the assembly strength is increased.

It should be noted that, when the bottom step 210 and the middle step 220 are placed at the corresponding positions of the ladder beam 100, grouting is performed in the grouting openings 800, and the grouting material 700 can ensure the rigid connection between the step 200 and the ladder beam 100, so as to improve the overall rigidity of the stair and increase the effective height of the section of the ladder beam 100.

When the installation of the middle step 220 is completed, the remaining middle steps 220 are sequentially installed.

As shown in fig. 4, 6 and 7, after all the intermediate risers 220 are installed, the first connectors 300 at the bottom of the top riser 230 are inserted into the corresponding first connection holes 110 in the ladder beam 100. The first connection member 300 at the bottom of the top ladder plate 230 is hidden by inserting the first connection member 300 at the bottom of the top ladder plate 230 into the corresponding first connection hole 110 of the ladder beam 100 for assembly. At the same time, the second connection holes 500 formed in the top ladder plate 230 and the corresponding first connection holes 110 formed in the ladder beam 100 are inserted through the second connection members. The second connection member at the bottom of the top step 230 is inserted into the second connection hole 500 of the top step 230 and the corresponding first connection hole 110 of the ladder beam 100, thereby achieving a better fastening effect when the top step 230 is installed with the ladder beam 100.

It should be noted that, when the ladder plate 200 is installed, the middle ladder plate 220 placed at the rear just limits the bottom ladder plate 210 or the front middle ladder plate 220.

In the embodiment of the present application, through the above-mentioned stairs, on the one hand, the weight of the stair is reduced by adopting the stair boards 200 and the stair beams 100, the first connecting piece 300 in the grouting groove 400 of the bottom stair board 210 is inserted into the corresponding first connecting hole 110 on the stair beams 100 for assembly, the first connecting piece 300 in the grouting groove 400 of the middle stair board 220 is inserted into the corresponding first connecting hole 110 on the stair beams 100 for assembly, and the first connecting piece 300 of the top stair board 230 is assembled with the corresponding first connecting hole 110 on the stair beams 100. The first connecting piece 300 is hidden by inserting the first connecting piece 300 into the first connecting hole 110, so that the front surface cannot be seen, and the appearance is good. On the other hand, the first connection member 300 of the bottom step 210 is inserted into the connection portion of the first connection hole 110, and the connection portion of the first connection member 300 of the middle step 220 inserted into the first connection hole 110 is filled with slurry through the grouting grooves 400, so that the connection point is not loosened, and the assembly strength is increased. In addition, the assembling mode of the ladder plate 200 and the ladder beam 100 is simple and convenient to operate, thereby shortening the assembling construction period.

Next, each portion of the above-described fabricated stairway in the present exemplary embodiment will be described in more detail with reference to fig. 1 to 12.

Ladder beams 100 and ladder plates 200. Wherein, the ladder beam 100 is provided with a plurality of first connection holes 110; the bottom ladder plate (210) is positioned at the bottom of the ladder beam (100), the top ladder plate (230) is positioned at the top of the ladder beam (100), the middle ladder plate (220) is positioned between the bottom of the ladder beam (100) and the top of the ladder beam (100), wherein the bottom ladder plate (210) and the middle ladder plate (220) are both L-shaped, two grouting grooves (400) are respectively formed from the back surface of the vertical part of the bottom ladder plate (210) to the bottom of the plane part of the bottom ladder plate (210), two grouting grooves (400) are respectively formed from the back surface of the vertical part of the middle ladder plate (220) to the bottom of the plane part of the middle ladder plate (220), first connecting pieces (300) are respectively embedded in each grouting groove (400) and are respectively arranged at the bottom of the top ladder plate (230), the bottom of the middle ladder plate (220) and the first connecting pieces (300) are used for being inserted into the corresponding first connecting holes (110), the bottom of the middle ladder plate (220) and the first connecting pieces (300) are used for being inserted into the corresponding first connecting holes (110), when the first connecting pieces (300) of the bottom ladder plate (210) and the bottom of the middle ladder plate (210) are inserted into the corresponding first connecting holes (110) and the first connecting holes (300) are respectively arranged between the bottom of the first connecting plates (300) and the bottom of the top ladder plate (210) and the top plate (210) and the first connecting holes (300) and the bottom of the middle plate (300) and the top plate (300) and the bottom connecting holes (110) when the first connecting pieces (300) are respectively) and the bottom connecting holes (300) and the bottom connecting holes (110) and the bottom, the second connection holes 500 of the bottom ladder plate 210 are connected with the corresponding first connection holes 110 of the ladder beam 100 by means of second connection members.

It will be appreciated that with reference to fig. 1, 6, 7, 8 and 9, when the bottom riser 210 is installed in the bottom position of the ladder beam 100, the edge of the bottom riser 210 is aligned with the edge of the bottom position of the ladder beam 100. The top of the grouting groove 400 at the back of the bottom step 210 and the corresponding position of the ladder beam 100 form a grouting port 800, and the grouting port 800 at the bottom step 210 communicates with the grouting groove 400 at the back of the bottom step 210 and the grouting groove 400 at the bottom of the bottom step 210. As shown in fig. 8, the top of the grouting grooves 400 on the back of the middle step 220 and the corresponding position of the ladder beam 100 form a grouting port 800, and the grouting port 800 at the middle step 220 communicates with the grouting grooves 400 on the back of the middle step 220 and the grouting grooves 400 on the bottom of the middle step 220.

As shown in fig. 2, 6, 7, 8 and 9, when the first connection member 300 in the grouting groove 400 on the bottom of the bottom step 210 is inserted into the corresponding first connection hole 110 on the ladder beam 100 to be assembled, and the second connection rod is inserted into the first connection hole 110 on the bottom step 210 and the second connection hole 500 at the corresponding position of the ladder beam 100, grouting is performed through the grouting opening 800 at the bottom step 210, and then the grouting flows into the grouting groove 400 on the back of the bottom step 210 and the grouting groove 400 on the bottom of the bottom step 210. The first connection piece 300 in the grouting groove 400 on the bottom of the bottom ladder plate 210 is hidden by inserting the first connection piece 300 in the grouting groove 400 on the bottom of the bottom ladder plate 210 into the corresponding first connection hole 110 on the ladder beam 100 for assembly. Meanwhile, the first connector 300 of the bottom ladder plate 210 is inserted into the connection portion of the first connection hole 110 to be filled with slurry through the grouting grooves 400, so that the connection point is not loosened, and the assembly strength is increased. The second connecting rod is inserted into the first connecting hole 110 on the bottom step plate 210 and the second connecting hole 500 at the corresponding position of the ladder beam 100, so that a better fastening effect is achieved when the bottom step plate 210 is mounted with the ladder beam 100.

As shown in fig. 3, 5, 8 and 9, when the installation of the bottom step 210 is completed, the first connection members 300 in the grouting grooves 400 on the bottom of the middle step 220 are inserted into the corresponding first connection holes 110 on the ladder beam 100 while grouting slurry is performed through the grouting openings 800 at the middle step 220, and then the slurry flows into the grouting grooves 400 on the rear surface of the middle step 220, the grouting grooves 400 on the bottom of the middle step 220. The present application achieves the purpose of hiding the first connection member 300 in the grouting groove 400 on the bottom of the middle step 220 by inserting the first connection member 300 in the grouting groove 400 on the bottom of the middle step 220 into the corresponding first connection hole 110 on the ladder beam 100. Meanwhile, the first connector 300 of the middle step 220 is inserted into the connection portion of the first connection hole 110 to be filled with slurry through the grouting grooves 400, so that the connection point is not loosened, and the assembly strength is increased.

It should be noted that, when the bottom step 210 and the middle step 220 are placed at the corresponding positions of the ladder beam 100, grouting is performed in the grouting openings 800, and the grouting material 700 can ensure the rigid connection between the step 200 and the ladder beam 100, so as to improve the overall rigidity of the stair and increase the effective height of the section of the ladder beam 100.

When the installation of the middle step 220 is completed, the remaining middle steps 220 are sequentially installed.

As shown in fig. 4, 6 and 7, after all the intermediate risers 220 are installed, the first connectors 300 at the bottom of the top riser 230 are inserted into the corresponding first connection holes 110 in the ladder beam 100. The first connection member 300 at the bottom of the top ladder plate 230 is hidden by inserting the first connection member 300 at the bottom of the top ladder plate 230 into the corresponding first connection hole 110 of the ladder beam 100 for assembly. At the same time, the second connection holes 500 formed in the top ladder plate 230 and the corresponding first connection holes 110 formed in the ladder beam 100 are inserted through the second connection members. The second connection member at the bottom of the top step 230 is inserted into the second connection hole 500 of the top step 230 and the corresponding first connection hole 110 of the ladder beam 100, thereby achieving a better fastening effect when the top step 230 is installed with the ladder beam 100.

It should be noted that, when the ladder plate 200 is installed, the middle ladder plate 220 placed at the rear just limits the bottom ladder plate 210 or the front middle ladder plate 220.

In the embodiment of the present application, through the above-mentioned stairs, on the one hand, the weight of the stair is reduced by adopting the stair boards 200 and the stair beams 100, the first connecting piece 300 in the grouting groove 400 of the bottom stair board 210 is inserted into the corresponding first connecting hole 110 on the stair beams 100 for assembly, the first connecting piece 300 in the grouting groove 400 of the middle stair board 220 is inserted into the corresponding first connecting hole 110 on the stair beams 100 for assembly, and the first connecting piece 300 of the top stair board 230 is assembled with the corresponding first connecting hole 110 on the stair beams 100. The first connecting piece 300 is hidden by inserting the first connecting piece 300 into the first connecting hole 110, so that the front surface cannot be seen, and the appearance is good. On the other hand, the first connection member 300 of the bottom step 210 is inserted into the connection portion of the first connection hole 110, and the connection portion of the first connection member 300 of the middle step 220 inserted into the first connection hole 110 is filled with slurry through the grouting grooves 400, so that the connection point is not loosened, and the assembly strength is increased. In addition, the assembling mode of the ladder plate 200 and the ladder beam 100 is simple and convenient to operate, thereby shortening the assembling construction period.

In one embodiment, the top step 230 is I-shaped in shape.

Compared with the traditional assembled stair, the application has light dead weight, saves materials and time. The application separates the whole stair 200 from the stair beam 100, which can ensure the lower rejection rate of the stair, the application separates the whole stair, the requirement of the mould is simple, the utilization rate of the mould is greatly improved, the cost of the stair is further reduced, when the stair 200 is connected with the stair beam 100, the bottom stair 210 and the middle stair 220 are only required to be placed at the corresponding positions on the stair beam 100, and then grouting is carried out in the grouting grooves 400 of the bottom stair 210 and the grouting grooves 400 of the middle stair 220, the form conceals the first connecting piece 300 of the stair 200 and the stair beam 100, the visual surface of the stair is beautiful, and the grouting material ensures the firmness of the connecting position.

The assembled stairway is not easy to crack during production, transportation and construction, has high yield and is attractive in post house delivery. The stair production has higher industrialization and higher template turnover rate. The stair is assembled in the factory, the site only needs to connect the reserved first connecting piece to the ladder beam, the construction period can be shortened, the construction energy consumption is reduced, the material consumption is reduced, meanwhile, the stair can be assembled on site according to the requirements, and the stair is various in form.

It is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. in the above description are merely for convenience of description and simplify the description of the embodiments of the present application based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present application.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally formed, mechanically connected or electrically connected, directly connected or indirectly connected through an intermediate medium, or in communication between two elements or in interaction with each other. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In embodiments of the application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, or may include both the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, one skilled in the art can combine and combine the different embodiments or examples described in this specification.

Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the application following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the application pertains.

Claims (10)

1. A fabricated stairway, comprising:

A ladder beam provided with a plurality of first connecting holes;

The ladder plate is positioned on the ladder beam and comprises a bottom ladder plate, a plurality of middle ladder plates and a top ladder plate, wherein the bottom ladder plate is positioned at the bottom of the ladder beam, the top ladder plate is positioned at the top of the ladder beam, and the middle ladder plate is positioned between the bottom of the ladder beam and the top of the ladder beam;

The first connecting pieces are respectively embedded in each grouting groove and the bottom of the top ladder plate, the first connecting pieces at the bottom of the middle ladder plate are used for being inserted into the first connecting holes corresponding to the first connecting pieces, the first connecting pieces at the bottom of the bottom ladder plate are used for being inserted into the first connecting holes corresponding to the first connecting pieces, and the first connecting pieces at the bottom of the top ladder plate are inserted into the first connecting holes corresponding to the first connecting pieces; the grouting device comprises a bottom ladder plate, a grouting groove, a middle ladder plate, a grouting groove, a grouting hole and a grouting hole, wherein the bottom of the bottom ladder plate is used for being inserted into the corresponding first connecting hole, and the grouting groove is used for grouting slurry when the first connecting piece of the bottom ladder plate is used for being inserted into the corresponding first connecting hole;

The second connecting holes are respectively formed in the top ladder plate and the bottom ladder plate, the second connecting holes in the top ladder plate are connected with the corresponding first connecting holes in the ladder beam through second connecting pieces, and the second connecting holes in the bottom ladder plate are connected with the corresponding first connecting holes in the ladder beam through second connecting pieces.

2. The fabricated stairway according to claim 1, wherein the ladder beams are shaped as inverted reentrant angular serrations.

3. The fabricated stairway according to claim 1, wherein the first connector is a circular head fixed to a metal long bar or the first connector is a cross head fixed to a metal long bar.

4. A fabricated stairway according to claim 3, wherein the cross-shaped or circular head of the first connector has a diameter of 20 to 50mm, the length of the metal elongate rod is 70 to 90mm, the diameter of the metal elongate rod is 8 to 16mm and the surface is ribbed.

5. The fabricated stairway according to claim 3, wherein the first connector head portion of the bottom of the middle step is pre-buried into the grouting groove by 10-40 mm, the first connector head portion of the bottom step is pre-buried into the grouting groove by 10-40 mm, the first connector head portion of the bottom of the top step is pre-buried into the top step, and the metal long rod is outside.

6. The fabricated stairway according to claim 5, wherein the metal elongate bars are 40-80 mm external.

7. The fabricated stairway according to claim 1, wherein the cross-sectional width of the ladder beams is 100mm to 150mm, and the height of the ladder beams is 120mm to 240mm.

8. The fabricated stairway according to claim 1, wherein the diameter of the first connecting hole is 20-50 mm, and the depth of the first connecting hole is 50-90 mm.

9. The fabricated stairway according to claim 1, wherein the intermediate and top flights are provided with cleats, respectively.

10. The fabricated stairway according to claim 1, wherein the top step is I-shaped.