Simple stair for construction site

Abstract

The utility model relates to a simple stairway for a construction site, the simple stairway comprises a plurality of cuboid-shaped stairway modules, every two adjacent stairway modules are arranged in a staggered and overlapped mode according to stairway sections or are arranged in parallel front and back according to stairway platform sections, and every two adjacent stairway modules are fixedly connected through bolts and nuts which are screwed with each other. The modular stair has the advantages that the modular design is adopted, the adjacent stair modules are fastened and connected through the bolts and the nuts which are screwed, field assembling and building are facilitated, transferring in the same construction site is facilitated after building is completed, and storage and long-distance transportation are facilitated after splitting.

Description

Technical Field

[0001] This utility model relates to the field of building staircase technology, and in particular to a simple staircase for construction sites. Background Technology

[0002] In some areas of construction sites with large elevation differences, temporary staircases need to be built to facilitate workers' movement up and down. Currently, steel pipes and wooden planks are mainly used for on-site construction. Although the materials are readily available, the on-site construction is troublesome. Furthermore, every time the location is changed, the staircases need to be dismantled and the raw materials moved to another location for reconstruction, which is not convenient for overall transportation within the same construction site. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned problems in the existing technology and provide a simple staircase for construction sites.

[0004] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0005] A simple staircase for construction sites includes several rectangular staircase modules. Adjacent staircase modules are arranged in an alternating and overlapping manner according to the staircase segments or in a parallel manner according to the staircase platform segments. Adjacent staircase modules are fastened together with screw-in bolts and nuts.

[0006] The staircase module includes a cuboid aluminum frame and rectangular aluminum treads. A rectangular mounting groove is provided at the top center of the aluminum frame, and the aluminum treads are welded into the mounting groove. The top of the aluminum treads is flush with the top of the aluminum frame.

[0007] The aluminum frame includes two rectangular aluminum end frames and four first aluminum profiles with an "L" shaped cross-section. The two aluminum end frames are symmetrical. The four first aluminum profiles are welded between the two aluminum end frames. Multiple parallel first aluminum square tubes are welded between the two first aluminum profiles at the top of the aluminum frame. The top of the first aluminum square tubes forms an installation groove with the two aluminum end frames and the two first aluminum profiles at the top of the aluminum frame.

[0008] In this configuration, a second aluminum square tube is welded to the bottom end of the first aluminum square tube and to each of the two first aluminum profiles located at the bottom of the aluminum frame.

[0009] Each aluminum end frame includes a second aluminum profile with an "L"-shaped cross-section, a third aluminum profile with an "L"-shaped cross-section, a fourth aluminum profile with an "L"-shaped cross-section, and a fifth aluminum profile with an "L"-shaped cross-section. The third and fifth aluminum profiles are symmetrical front to back. The second aluminum profile is welded between the top of the third and fifth aluminum profiles, and the fourth aluminum profile is welded between the bottom of the third and fifth aluminum profiles. The front of the second aluminum profile has N evenly distributed and vertically connected first mounting holes, and the rear of the fourth aluminum profile has N evenly distributed and vertically connected second mounting holes. The third and fifth aluminum profiles each have M evenly distributed and vertically connected third mounting holes. When two adjacent stair modules are arranged in an overlapping staircase configuration, the bolts are inserted into the vertically adjacent and coaxial first and second mounting holes. When two adjacent stair modules are arranged side by side according to the staircase platform sections, the bolts are inserted into the vertically adjacent and coaxial third mounting holes.

[0010] Furthermore, a vertical third aluminum square tube is welded between the second aluminum profile and the fourth aluminum profile.

[0011] Preferably, the bottom of the stair module is provided with an aluminum formwork steel support to support the stair module.

[0012] The advantages of this utility model are: it adopts a modular design, and uses interlocking bolts and nuts to fasten adjacent stair modules, which facilitates on-site assembly and construction. After assembly, it is easy to transport within the same construction site, and after disassembly, it is convenient for storage and long-distance transportation. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0014] Figure 1 This is a structural schematic diagram of the simple staircase in this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of two adjacent stair modules arranged in an overlapping manner according to the stair flight segments in this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of two adjacent stair modules arranged side by side according to the stair platform section in this utility model;

[0017] Figure 4 This is a structural schematic diagram of the staircase module in this utility model;

[0018] Figure 5 This is a schematic diagram of the aluminum frame structure in this utility model;

[0019] Figure 6 This is a schematic diagram of the aluminum end frame in this utility model;

[0020] The following are the labels in the diagram: 1. Staircase module; 2. Bolt; 3. Nut; 4. Aluminum tread plate; 5. Aluminum end frame; 6. First aluminum profile; 7. First aluminum square tube; 8. Second aluminum profile; 9. Third aluminum profile; 10. Fourth aluminum profile; 11. Fifth aluminum profile; 12. First mounting hole; 13. Second mounting hole; 14. Third mounting hole; 15. Third aluminum square tube; 16. Aluminum formwork steel support; 17. Second aluminum square tube; 18. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figures 1 to 6 As shown, a simple staircase for construction sites includes several rectangular staircase modules 1. Adjacent staircase modules 1 are arranged in an alternating and overlapping manner according to the staircase segments or in a parallel arrangement according to the staircase platform segments. Adjacent staircase modules 1 are fastened together with bolts 2 and nuts 3.

[0023] The modular design utilizes interlocking bolts 2 and nuts 3 to securely connect adjacent stair modules 1, facilitating on-site assembly and construction. Once assembled, the modules can be easily transported within the same construction site, and after disassembly, they are convenient for storage and long-distance transportation.

[0024] To improve the stability of the proposed staircase after construction, an aluminum formwork steel support 17 is installed at the bottom of the staircase module 1 to support the staircase module and prevent the upper cantilevered part of the simple staircase from sagging.

[0025] The stair module 1 includes a cuboid aluminum frame 4 and a rectangular aluminum tread plate 5. A rectangular mounting groove is provided at the top center of the aluminum frame 4. The aluminum tread plate 5 is welded into the mounting groove. The top of the aluminum tread plate 5 is flush with the top of the aluminum frame 4, so that the top of the stair module 1 is a plane.

[0026] The aluminum frame 4 includes two rectangular aluminum end frames 6 and four first aluminum profiles 7 with an "L" shaped cross section. The two aluminum end frames 6 are symmetrical from left to right. The four first aluminum profiles 7 are welded between the two aluminum end frames 6 respectively. Multiple parallel first aluminum square tubes 8 are welded between the two first aluminum profiles 7 located at the top of the aluminum frame 4. The top of the first aluminum square tubes 8 and the two aluminum end frames 6 and the two first aluminum profiles 7 located at the top of the aluminum frame 4 form an installation groove.

[0027] Each aluminum end frame 6 includes a second aluminum profile 9 with an "L"-shaped cross-section, a third aluminum profile 10 with an "L"-shaped cross-section, a fourth aluminum profile 11 with an "L"-shaped cross-section, and a fifth aluminum profile 12 with an "L"-shaped cross-section. The third aluminum profile 10 and the fifth aluminum profile 12 are symmetrical front to back. The second aluminum profile 9 is welded between the top of the third aluminum profile 10 and the fifth aluminum profile 12, and the fourth aluminum profile 11 is welded between the bottom of the third aluminum profile 10 and the fifth aluminum profile 12. The front of the second aluminum profile 9 has three evenly distributed openings. The first mounting hole 13 is through the bottom. The rear of the fourth aluminum profile 11 has three evenly distributed and vertically through second mounting holes 14. The third aluminum profile 10 and the fifth aluminum profile 12 each have three evenly distributed and front-to-back through third mounting holes 15. When two adjacent stair modules 1 are arranged in an overlapping manner according to the stair sections, the bolts 2 are inserted into the first mounting holes 13 and the second mounting holes 14 that are adjacent and coaxial. When two adjacent stair modules 1 are arranged in a parallel manner according to the stair platform sections, the bolts 2 are inserted into the third mounting holes 15 that are adjacent and coaxial.

[0028] To prevent the middle of the first aluminum square tube 8 from bending downwards, a second aluminum square tube 18 is welded between the bottom end of the first aluminum square tube 8 and the two first aluminum profiles 7 located at the bottom of the aluminum frame 4.

[0029] To improve the strength of the aluminum end frame 6 and prevent the middle of the second aluminum profile 9 from bending downwards, a vertical third aluminum square tube 16 is welded between the second aluminum profile 9 and the fourth aluminum profile 11.

[0030] The components of stair module 1 are made from recycled aluminum templates. This improves the material utilization rate of aluminum templates, reduces the manufacturing cost of stair module 1, and also helps to reduce the weight of stair module 1.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A simple staircase for construction sites, characterized in that: The simple staircase includes several rectangular staircase modules. Adjacent staircase modules are arranged in an alternating and overlapping manner according to the staircase segments or in a parallel manner according to the staircase platform segments. Adjacent staircase modules are fastened together with screw-in bolts and nuts.

2. The simple staircase according to claim 1, characterized in that: The staircase module includes a cuboid aluminum frame and rectangular aluminum treads. A rectangular mounting groove is provided at the top center of the aluminum frame, and the aluminum treads are welded into the mounting groove. The top of the aluminum treads is flush with the top of the aluminum frame.

3. The simple staircase according to claim 2, characterized in that: The aluminum frame includes two rectangular aluminum end frames and four first aluminum profiles with an "L" shaped cross-section. The two aluminum end frames are symmetrical from left to right. The four first aluminum profiles are welded between the two aluminum end frames. Multiple parallel first aluminum square tubes are welded between the two first aluminum profiles at the top of the aluminum frame. The top of the first aluminum square tubes forms an installation groove with the two aluminum end frames and the two first aluminum profiles at the top of the aluminum frame.

4. The simple staircase according to claim 3, characterized in that: A second aluminum square tube is welded to the bottom of the first aluminum square tube and to the two first aluminum profiles located at the bottom of the aluminum frame.

5. The simple staircase according to claim 3, characterized in that: Each aluminum end frame includes a second aluminum profile with an "L"-shaped cross-section, a third aluminum profile with an "L"-shaped cross-section, a fourth aluminum profile with an "L"-shaped cross-section, and a fifth aluminum profile with an "L"-shaped cross-section. The third and fifth aluminum profiles are symmetrical front to back. The second aluminum profile is welded between the top of the third and fifth aluminum profiles, and the fourth aluminum profile is welded between the bottom of the third and fifth aluminum profiles. The front of the second aluminum profile has N evenly distributed and vertically connected first mounting holes, and the rear of the fourth aluminum profile has N evenly distributed and vertically connected second mounting holes. The third and fifth aluminum profiles each have M evenly distributed and vertically connected third mounting holes. When two adjacent stair modules are arranged in an overlapping staircase configuration, the bolts are inserted into the vertically adjacent and coaxial first and second mounting holes. When two adjacent stair modules are arranged side by side according to the staircase platform sections, the bolts are inserted into the vertically adjacent and coaxial third mounting holes.

6. The simple staircase according to claim 5, characterized in that: A vertical third aluminum square tube is welded between the second aluminum profile and the fourth aluminum profile.

7. The simple staircase according to claim 1, characterized in that: The bottom of the stair module is provided with an aluminum formwork steel support to support the stair module.

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