Spiral stair structure

Abstract

The spiral stair structure comprises a spiral main beam and a plurality of prefabricated pedal assemblies, and each prefabricated pedal assembly comprises a pedal and two rib plates; according to the spiral stair structure, the design of double main beams is omitted, one main beam is adopted, the steel consumption can be greatly reduced, the stair can be rapidly assembled through the multiple prefabricated pedal assemblies prefabricated in advance, the field construction efficiency is high, the main passing weight is borne through the spiral main beams, and the stability and durability of the structure can be greatly improved.

Description

Technical Field

[0001] The present application relates to the field of stairs, and in particular to a spiral staircase structure. Background Art

[0002] Among stair structures, spiral staircases have become a highlight in modern architectural structures with their unique shape and space utilization.

[0003] The existing technology (for example, a steel structure staircase disclosed in Patent No. CN221422499U) has the following problems: (1) a large amount of steel is used and it cannot meet the requirements of rapid assembly and molding; (2) the middle of the step is suspended in the air and the stress-bearing performance is poor. Utility Model Content

[0004] The embodiment of the present application provides a spiral staircase structure that can reduce the amount of steel used and improve structural strength.

[0005] An embodiment of the present application provides a spiral staircase structure, including a spiral main beam and multiple prefabricated pedal assemblies; the spiral main beam is spirally arranged along the height direction; multiple prefabricated pedal assemblies are arranged on the spiral main beam to form a staircase for pedestrians to pass; the prefabricated pedal assembly includes a pedal and two ribs; the upper surface of the pedal is configured as a tread surface; the two ribs are respectively arranged on the lower surface of the pedal, the length direction of the two ribs is consistent with the length direction of the pedal, and a positioning groove that can accommodate the spiral main beam is formed between the two ribs and the lower surface of the pedal.

[0006] The spiral staircase structure of the present application has at least the following beneficial effects:

[0007] The spiral staircase structure of the present application includes a spiral main beam and multiple prefabricated pedal assemblies, and the prefabricated pedal assembly includes a pedal and two ribs; the spiral staircase structure of the present application cancels the double main beam design and adopts one main beam, which can greatly save steel usage, and can be quickly assembled to form a staircase through multiple prefabricated pedal assemblies prefabricated in advance. The two ribs are arranged horizontally and can form a positioning groove at the lower middle position of the pedal. On the one hand, it can facilitate the rapid positioning of the prefabricated pedal assembly on the spiral main beam. On the other hand, the spiral main beam is located directly below the pedal. The main traffic weight is borne by the spiral main beam, which can greatly improve the stability and durability of the structure. The ribs can also strengthen the left and right sides of the pedal. As a whole, the spiral staircase structure of the present application can not only save steel usage but also achieve better stress-bearing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiment below. The accompanying drawings are for illustration purposes only and are not to be considered as limiting the present application. The same reference symbols are used throughout the drawings to represent the same components. In the drawings:

[0009] Figure 1 This is a plan view of the spiral staircase structure of the present application;

[0010] Figure 2 This is an elevation view of the spiral staircase structure of the present application;

[0011] Figure 3 is a top view of the prefabricated pedal assembly of the present application (with hatching indicated);

[0012] Figure 4 is a vertical cross-sectional view of the prefabricated pedal assembly of the present application;

[0013] Figure 5 yes Figure 4 AA view in;

[0014] Description of the reference numerals is as follows:

[0015] 10. Spiral main beam;

[0016] 20. Prefabricated pedal assembly; 21. Pedal; 22. Rib; 22a. Outer side of rib; 22b. Inner side of rib; 23. Pad; 24. Wing; 20a. Positioning groove; 20b. Welding gap. DETAILED DESCRIPTION

[0017] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is merely to provide a better understanding of the present application by illustrating the examples of the present application.

[0018] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0019] like Figure 1 and Figure 2 As shown, this embodiment discloses a spiral staircase structure, including a spiral main beam 10 and a plurality of prefabricated pedal assemblies 20; the spiral main beam 10 is spirally arranged along the height direction, and the cross-sectional shape of the spiral main beam 10 is rectangular.

[0020] The prefabricated pedal assembly 20 can be manufactured before assembling the spiral staircase structure. A plurality of prefabricated pedal assemblies are sequentially arranged on the spiral main beam 10 along the length direction 20 thereof to form a spiral staircase for pedestrians to pass through.

[0021] like Figure 3 and Figure 4 As shown, the prefabricated pedal assembly 20 includes a pedal 21 and two ribs 22; the upper surface of the pedal 21 is configured as a stepping surface, and pedestrians can climb upward from a lower position along the spiral direction (i.e., the length direction) of the spiral main beam 10 through the stepping surfaces of the multiple pedals 21. The two ribs 22 are respectively arranged perpendicularly on the lower surface of the pedal 21. The length direction of the two ribs 22 is consistent with the length direction of the pedal 21, and along the length direction of the pedal 21 (e.g., Figure 4 As shown by the arrow P), the two ribs 22 are arranged at intervals, and a positioning groove 20a for accommodating the spiral main beam 10 is formed between the two ribs 22 and the lower surface of the pedal 21. When assembling the spiral staircase structure, the positioning groove 20a is inserted into the spiral main beam 10 to complete the positioning between the prefabricated pedal assembly 20 and the spiral main beam 10, and then the ribs 22 and the spiral main beam 10 are connected together by welding or other connection methods.

[0022] like Figure 3 and Figure 4 As shown, in the length direction of the pedal 21 (as Figure 4As shown by arrow P, the side of the rib 22 facing away from the spiral main beam 10 is configured as the outer side 22a of the rib, and the outer side 22a of the rib is flush with the side of the pedal 21. The side of the rib 22 facing the main beam is configured as the inner side 22b of the rib, and a predetermined welding gap 20b is provided between the inner side 22b of the rib and the spiral main beam 10. The welding gap 20b facilitates welding the rib 22 and the spiral main beam 10 together, and also facilitates quickly positioning the prefabricated pedal assembly 20 on the spiral main beam 10.

[0023] The two ribs 22 of this embodiment are symmetrically arranged below the pedal 21. The two ribs 22 are respectively located on the horizontal sides of the spiral main beam 10. On the one hand, they play a role in positioning with the spiral main beam 10, and on the other hand, they play a role in strengthening the structure. It should be noted that the ribs 22 are respectively provided on the left and right sides of the pedal 21 of this embodiment, and the middle position of the pedal 21 is pressed on the spiral main beam 10, so that each position of the pedal 21 has a certain load-bearing capacity, and the load-bearing part of the middle position of the pedal 21 is the spiral main beam 10, so the force performance is more reasonable. Compared with the design of the pedal middle being suspended in the air in the prior art, the structure of this embodiment has obviously better force performance.

[0024] In some preferred embodiments, the direction from the outer side to the inner side of the rib 22 (eg Figure 4 As shown by the arrow P), the width of the ribs 22 gradually increases, and from a frontal perspective, the ribs 22 are trapezoidal. The wider the ribs 22, the better the reinforcing effect on the pedals 21, and the load-bearing performance will naturally increase accordingly. However, if the width of the ribs 22 is blindly increased, on the one hand, it will increase consumables, and on the other hand, it will also increase the weight of the structure. It should be noted that the weight borne by general staircases is mainly concentrated in the middle of the pedals 21, so the force on the pedals 21 is large in the middle and small at both ends. In this embodiment, the width of the ribs 22 increases from the outside to the inside, which can increase the load-bearing area of ​​the middle area of ​​the pedals 21 and the welding connection area between the ribs 22 and the spiral main beam 10, which can greatly improve the structural strength while avoiding the increase of unnecessary consumables.

[0025] In some preferred embodiments, Figure 3 As shown, the thickness D1 of the rib 22 is one-third to one-sixth of the width D2 of the pedal 21. More preferably, the thickness D1 of the rib 22 is one-quarter or one-fifth of the width D2 of the pedal 21. By selecting the thickness of the pedal 21, unnecessary consumables can be avoided, ensuring structural strength while reducing structural weight.

[0026] In some preferred embodiments, Figures 3 to 5As shown, the pedal 21 is provided with wings 24 along its length. The wings 24 are located at the edge of the pedal 21 and are equal in length to the pedal 21. Specifically, the sidewalls of the wings 24 are flush with the sidewalls of the pedal 21 in the width direction. The wings 24 are formed by bending the edges of the pedal 21. Of course, the pedal 21 and the wings 24 can also be welded. In this embodiment, the wings 24 serve two purposes: first, to strengthen the structural strength of the pedal 21, and second, to better secure the kick panel (not shown).

[0027] In some preferred embodiments, Figure 3 and Figure 4 As shown, the prefabricated pedal assembly 20 also includes two pads 23 arranged on the lower surface of the pedal 21, and the upper surface of the pad 23 is connected to the lower surface of the pedal 21; wherein, in the length direction of the pedal 21, the two pads 23 are located between the two ribs 22, and in the height direction, the two pads 23 are located between the upper surface of the main beam and the pedal 21, and the space between the pedal 21 and the spiral main beam 10 is made up by the pads 23, so that the tread surface of the pedal 21 is horizontal, which is convenient for pedestrians to pass.

[0028] like Figure 5 As shown, the lower surface of the pad 23 is in contact with the upper surface of the spiral main beam 10 to increase the contact area of ​​the structure and improve the stability of the structure. The pad 23 extends along the length of the spiral main beam 10 to increase the contact area between the pedal 21 and the spiral main beam 10.

[0029] The above description is only a specific embodiment of the present application. Those skilled in the art will clearly understand that for the convenience and brevity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the scope of protection of the present application.

Claims

1. A spiral staircase structure, characterized in that: It comprises a spiral main beam (10) and a plurality of prefabricated pedal assemblies (20); The spiral main beam (10) is spirally arranged in a height direction; a plurality of prefabricated pedal assemblies (20) are arranged on the spiral main beam (10) to form a staircase for pedestrians to pass through; The prefabricated pedal assembly (20) comprises a pedal (21) and two ribs (22); the upper surface of the pedal (21) is configured as a stepping surface; the two ribs (22) are respectively arranged on the lower surface of the pedal (21), the length direction of the two ribs (22) is consistent with the length direction of the pedal (21), and a positioning groove (20a) capable of accommodating a spiral main beam (10) is formed between the two ribs (22) and the lower surface of the pedal (21).

2. The spiral staircase structure according to claim 1, characterized in that: In the length direction of the pedal (21), the outer side surface (22a) of the rib plate (22) is flush with the side surface of the pedal (21), and the inner side surface (22b) of the rib plate (22) and the side surface of the main beam have a welding gap (20b).

3. The spiral staircase structure according to claim 2, characterized in that: Two ribs (22) are symmetrically arranged below the pedal (21).

4. The spiral staircase structure according to claim 3, characterized in that: The width of the rib (22) gradually increases from the outer side to the inner side of the rib (22).

5. The spiral staircase structure according to any one of claims 1 to 4, characterized in that: The thickness of the rib (22) is one third to one sixth of the width of the pedal (21).

6. The spiral staircase structure according to any one of claims 1 to 4, characterized in that: The pedal is provided with a wing plate (24) along its length direction. The wing plate (24) is located at the edge of the pedal (21). The length of the wing plate (24) is equal to the length of the pedal (21).

7. The spiral staircase structure according to any one of claims 1 to 4, characterized in that: The prefabricated pedal assembly (20) further comprises two pads (23) arranged on the lower surface of the pedal (21); in the length direction of the pedal (21), the two pads (23) are located between the two ribs (22), and in the height direction, the two pads (23) are located between the upper surface of the spiral main beam (10) and the pedal (21), so that the tread surface is in a horizontal state.

8. The spiral staircase structure according to claim 7, characterized in that: The lower surface of the pad (23) is in contact with the upper surface of the spiral main beam (10).

9. The spiral staircase structure according to claim 8, characterized in that: The pad (23) is extended along the length direction of the spiral main beam (10).

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