Simple fastener type steel pipe stair

The simple fastener-type steel pipe staircase solves the problems of complex installation, difficult disassembly, and insufficient safety of temporary staircases through the design of side railings and tread connectors. It realizes a staircase system that is quick to install, safe and reliable, easy to reuse, and adaptable to diverse construction scenarios.

CN224396126UActive Publication Date: 2026-06-23CHINA CONSTR SEVENTH ENG DIVISION CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA CONSTR SEVENTH ENG DIVISION CORP LTD
Filing Date
2025-07-17
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing temporary staircases are complex to install, non-adjustable, difficult to dismantle, and lack sufficient safety. They are also difficult to reuse and cannot meet the requirements of efficiency and convenience in modern building construction.

Method used

The staircase features a simple fastener-type steel pipe design, which allows for quick installation and disassembly through the combination of side railings, tread connectors, and double fasteners. It is also equipped with guardrails and safety nets to enhance safety and stability.

Benefits of technology

It improves the efficiency of staircase installation and dismantling, reduces construction costs, enhances safety and stability, adapts to the needs of different construction scenarios, facilitates rapid site relocation, and reduces material waste.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a simple fastener type steel pipe stair, relates to the technical field of building temporary stair, solves the problem of insufficient simple stair protection measures in prior art, difficult to use in the scene. A simple fastener type steel pipe stair, including a pair of parallel setting side guardrails on both sides, and the side guardrails are connected through the pedal between, the pedal both ends are equipped with pedal connecting piece, and the pedal connecting piece is connected with the side guardrail through double fastener. Through double fastener, the simple assembly and connection of stair are realized, and through setting up side guardrail, certain safety protection ability is realized. The utility model discloses the pedal connecting piece and double fastener are connected between the side guardrail and the pedal, and the connection mode is simple and quick, does not need professional tool and complex technology, greatly improves the installation and disassembly efficiency of stair, and is convenient for fast scene use between different construction sites, provides the convenience for construction personnel, saves construction time. Meanwhile, the design of detachable and reusable reduces the cost.
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Description

Technical Field

[0001] This utility model relates to the field of temporary building staircase technology, and in particular to a simple fastener-type steel pipe staircase. Background Technology

[0002] In the construction industry, the need for temporary staircases is extremely common. Traditional temporary staircases are often constructed using welding or bolting, with stair treads typically consisting of wooden formwork paired with double steel pipes. However, this traditional method has several drawbacks: Complex installation: Requires specialized welding or numerous bolt connections, consuming significant time and manpower, leading to low construction efficiency. Non-adjustable: Once fixed, the structure is difficult to adapt to different heights or angles, limiting its application in diverse construction scenarios. Difficult disassembly: Welded staircases cannot be reused, resulting in significant material waste and increased construction costs. Insufficient safety: Some simple staircases lack necessary protective measures, such as guardrails or safety nets, posing significant safety hazards and threatening the lives of construction workers.

[0003] A Chinese invention patent with publication number CN106869424A discloses a simple steel staircase, which consists of four parts: a support structure, a main joist, a main joist reinforcement structure, and steel plate steps. By solving key problems such as fixing the support points of the stair joists, the overall structural safety and aesthetics of the staircase are improved. However, this invention still suffers from difficulties in disassembling and relocating the structure, failing to meet the requirements of efficient, convenient, and reusable modern building construction.

[0004] Meanwhile, existing simple staircases, such as those disclosed in Chinese invention patent CN110219477A, ​​mostly lack safety protection measures, resulting in low safety performance. Utility Model Content

[0005] To address the shortcomings in the aforementioned background technology, this utility model proposes a simple fastener-type steel pipe staircase, which solves the problems of insufficient protective measures and difficulty in relocation of simple staircases in the prior art.

[0006] The technical solution of this utility model is implemented as follows: a simple fastener-type steel pipe staircase includes a pair of side railings arranged parallel to each other on both sides, connected by treads. Each tread has a tread connector at both ends, which is connected to the side railings via double fasteners. The double fasteners enable simple assembly and connection of the staircase, while the side railings provide a certain level of safety protection.

[0007] Preferably, the side railing includes two parallel posts connected at their lower ends by a diagonal brace, with double fasteners engaging with the diagonal brace. This enhances the stability and load-bearing capacity of the side railing, ensuring the overall structural integrity of the staircase.

[0008] Preferably, at least two guardrails are installed parallel to each other at the upper end of the column. A protective net is installed between adjacent guardrails, which effectively enhances the safety performance of the staircase and reduces the risk of people falling from the edge of the staircase.

[0009] Preferably, the columns and diagonal braces, as well as the columns and guardrails, are all hinged. The hinges facilitate the folding and relocation of the staircase, improving installation convenience and relocation efficiency.

[0010] Preferably, the columns and diagonal braces, as well as the columns and guardrails, are all welded together. Welding is suitable for scenarios with higher structural strength requirements, making the use of the staircase more flexible and adaptable to different construction needs and site conditions.

[0011] Preferably, the tread connector is a cylindrical steel pipe, which is welded to the tread. The tread is a steel mesh with anti-slip texture on the surface. The cylindrical steel pipe has high strength and stability, reliably connecting the tread to the side railing, ensuring the tread's load-bearing capacity, guaranteeing its durability, and effectively preventing people from slipping on the tread, further improving the safety of the staircase.

[0012] Preferably, the double fastener includes a first Ω-shaped ring and a second Ω-shaped ring for respectively engaging with the diagonal bar and the tread connector. The first Ω-shaped ring and the second Ω-shaped ring are hinged together, and the opening directions of the first Ω-shaped ring and the second Ω-shaped ring are perpendicular. Bolts are inserted through the open ends of both the first Ω-shaped ring and the outer ends of the bolts are locked with nuts. This structure allows for quick connection and disassembly of the double fastener while ensuring a secure connection, facilitating the assembly and maintenance of the staircase.

[0013] Preferably, a Z-shaped connecting rod is provided between adjacent treads, and the treads are provided with insertion holes for inserting the Z-shaped connecting rod. The Z-shaped connecting rod not only facilitates the quick connection of adjacent treads and realizes the overall assembly of the staircase, but also has the following advantages: First, it avoids the tread from flipping over due to the loose connection of the double fasteners when stepping on a single tread, ensuring safety; second, this connection method facilitates the quick disassembly and relocation of the staircase, improving construction efficiency and reducing labor and time costs.

[0014] The beneficial effects of this utility model are:

[0015] This utility model connects the side railing and treads via tread connectors and double fasteners, a simple and quick connection method requiring no specialized tools or complex processes. This significantly improves the efficiency of staircase installation and disassembly, facilitating rapid relocation between different construction sites, providing convenience for construction workers, and saving construction time. Furthermore, the detachable and reusable design avoids material waste and reduces construction costs. Compared to traditional welded staircases, the structural components of this utility model can be reused multiple times, offering higher economic value and meeting the requirements of resource conservation and cost control in modern construction.

[0016] In addition, from the installation of side railings, guardrails, and protective nets to the fastening connection of double fasteners, and further to the protective and anti-tipping function of the Z-shaped connecting rod, this utility model strengthens the safety protection performance of the staircase in many aspects, effectively reduces the safety risks for construction workers during the use of the staircase, and ensures construction safety.

[0017] The upright and diagonal bracing structure of the side railings, along with the installation of protective guardrails, ensures the overall stability of the staircase. Even under heavy loads or frequent use, the staircase remains stable and does not wobble, providing reliable passage for construction workers. Attached Figure Description

[0018] To more clearly illustrate the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the staircase structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the connection area between the pedal connector and the double fasteners of this utility model;

[0021] Figure 3 This is a schematic diagram of the double fastener structure of this utility model;

[0022] Figure 4 A schematic diagram of the structure of this utility model when a Z-shaped connecting rod is provided;

[0023] In the diagram: 1: Post, 2: Guardrail, 3: Protective net, 4: Step, 5: Double fastener, 51: First Ω-shaped ring, 52: Second Ω-shaped ring, 53: Bolt, 6: Step connector, 7: Diagonal bar, 41: Z-shaped connecting rod. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1 , 2 As shown in Embodiment 1, a simple fastener-type steel pipe staircase includes a pair of parallel side railings on both sides, connected by treads 4. Each tread 4 has a tread connector 6 at both ends, which is connected to the side railings via double fasteners 5. This connection method is simple and quick, requiring no professional tools or complex processes, greatly improving the efficiency of staircase installation and disassembly. It facilitates rapid relocation between different construction sites, providing convenience for construction workers and saving construction time. Furthermore, the detachable and reusable design avoids material waste and reduces construction costs.

[0026] Specifically, in this embodiment, the side railing includes two parallel posts 1, with the lower ends of the two posts 1 connected by a diagonal brace 7. The double fasteners 5 cooperate with the diagonal brace 7, thereby improving the stability and load-bearing capacity of the side railing.

[0027] Furthermore, at least two guardrails 2 are installed parallel to each other at the top of the column 1. A protective net 3 is installed between adjacent guardrails 2. The guardrails provide a supporting foundation for the installation of the protective net, further enhancing the safety of the staircase.

[0028] The installation procedure for the staircase in this embodiment is as follows:

[0029] 1. Determine the inclination angle of the staircase according to requirements, and connect the diagonal brace 7 to the upright 1;

[0030] 2. Install and secure the connecting pedal 4 on the diagonal bar 7 using the pedal connector 6 and the double fastener 5;

[0031] 3. Install guardrails 2 and protective netting 3.

[0032] In Example 2, based on Example 1, the column 1 and the diagonal brace 7, as well as the column 1 and the guardrail 2, are hinged together. This hinged connection facilitates the folding and relocation of the staircase, making it easier to move the staircase between different construction sites. It also adapts to different construction height and angle requirements, improving the flexibility and adaptability of the staircase.

[0033] In Example 3, based on Example 1, the column 1 and the diagonal brace 7, as well as the column 1 and the guardrail 2, are all welded together. This welding method provides higher structural strength and is suitable for construction scenarios with high requirements for load-bearing capacity and stability, ensuring the stability of the staircase under frequent use and heavy loads.

[0034] In Example 4, based on Example 2 or 3, the pedal connector 6 is a cylindrical steel pipe, which is welded to both ends of the pedal 4. This ensures the strength and reliability of the connection.

[0035] Furthermore, the tread plate 4 is made of steel mesh with anti-slip texture on the surface. This not only increases the tread plate's sturdiness and durability but also effectively prevents construction workers from slipping and falling while walking on it, thus improving the safety performance of the staircase.

[0036] Example 5, based on Example 4, such as Figure 3 As shown, the double fastener 5 is a key component connecting the tread connector 6 and the side railing. In this embodiment, the double fastener 5 includes a first Ω-shaped ring 51 and a second Ω-shaped ring 52, which are used to engage with the diagonal bar 7 and the tread connector 6, respectively. The first Ω-shaped ring 51 engages with the diagonal bar 7, and the second Ω-shaped ring 52 engages with the tread connector 6. The first Ω-shaped ring 51 and the second Ω-shaped ring 52 are hinged together, and the openings of the first Ω-shaped ring 51 and the second Ω-shaped ring 52 are perpendicular, facilitating the connection of the diagonal bar 7 and the tread connector 6, which are in a mutually perpendicular state. Bolts 53 are inserted through the open ends of the first Ω-shaped ring 51 and the second Ω-shaped ring 52. The outer ends of the bolts 53 are locked with nuts. The nuts can reduce the openings of the first Ω-shaped ring 51 and the second Ω-shaped ring 52, so that they are respectively clamped onto the diagonal bar 7 and the tread connector 6, ensuring good stability and firmness during connection. Ultimately, a tight connection between the tread 4 and the side railing is achieved, ensuring the stability of the overall staircase structure.

[0037] Example 6, based on Example 5, such as Figure 4 As shown, a Z-shaped connecting rod 41 is provided between adjacent pedals 4, and the pedal 4 is provided with a socket for inserting the Z-shaped connecting rod 41. As an option, adjacent pedals can be connected by one Z-shaped connecting rod or by two Z-shaped connecting rods.

[0038] The Z-shaped connecting rod 41 not only facilitates the quick connection between adjacent treads 4, allowing for easy tread assembly through simple insertion, greatly improving the overall assembly efficiency of the staircase; but also, during use, when a worker steps on a tread, the Z-shaped connecting rod 41 effectively transfers the force to other adjacent treads, sharing the burden and preventing the safety hazard of treads tipping over due to loose double fastener connections, thus ensuring the safety of workers using the staircase. Furthermore, this connection method facilitates the rapid disassembly and relocation of the staircase, providing significant convenience during construction.

[0039] As a further optional solution, the Z-shaped connecting rod can be made in various specifications to meet the needs of staircase installation at different angles. It can also be made by directly bending threaded steel bars, which can utilize on-site materials and save on material preparation costs.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A simple fastener-type steel pipe staircase, comprising a pair of parallel side railings arranged on both sides, the side railings being connected by a tread (4), characterized in that: Both ends of the pedal (4) are provided with pedal connectors (6), and the pedal connectors (6) are connected to the side railings through double fasteners (5).

2. The simple fastener-type steel pipe staircase according to claim 1, characterized in that: The side railing includes two parallel posts (1), the lower ends of the two posts (1) are connected by a diagonal bar (7), and a double fastener (5) cooperates with the diagonal bar (7).

3. The simple fastener-type steel pipe staircase according to claim 2, characterized in that: At least two guardrails (2) are installed parallel to each other on the upper end of the column (1).

4. The simple fastener-type steel pipe staircase according to claim 3, characterized in that: A protective net (3) is installed between adjacent guardrails (2).

5. The simple fastener-type steel pipe staircase according to claim 4, characterized in that: The column (1) and the diagonal bar (7), as well as the column (1) and the guardrail (2), are all hinged together.

6. The simple fastener-type steel pipe staircase according to claim 4, characterized in that: The column (1) and the diagonal bar (7) are welded together, as are the column (1) and the guardrail (2).

7. The simple fastener-type steel pipe staircase according to any one of claims 1 to 6, characterized in that: The pedal connector (6) is a cylindrical steel pipe, which is connected to the pedal (4) by welding.

8. The simple fastener-type steel pipe staircase according to claim 7, characterized in that: The pedal (4) is a steel mesh with anti-slip texture on the surface.

9. The simple fastener-type steel pipe staircase according to claim 8, characterized in that: The double fastener (5) includes a first Ω-shaped ring (51) and a second Ω-shaped ring (52) for cooperating with the diagonal bar (7) and the pedal connector (6), respectively. The first Ω-shaped ring (51) and the second Ω-shaped ring (52) are hinged together, and the opening direction between the first Ω-shaped ring (51) and the second Ω-shaped ring (52) is perpendicular. The opening ends of the first Ω-shaped ring (51) and the second Ω-shaped ring (52) are both provided with bolts (53), and the outer end of the bolts (53) is locked by a nut.

10. The simple fastener-type steel pipe staircase according to claim 1 or 9, characterized in that: A Z-shaped connecting rod (41) is provided between adjacent pedals (4), and the pedals (4) are provided with insertion holes to accommodate the insertion of the Z-shaped connecting rod (41).