Aluminum alloy spiral stair with quick assembly function
By installing grating panels and downward-sloping lighting between the spiral stair treads, combined with spiral protective ribs and protective glass, the problem of glare when descending the stairs is solved, improving safety and lighting effects, and preventing missteps and falls.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJU NEW MATERIAL TECHNOLOGY (GUANGDONG) CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-04-17
AI Technical Summary
The existing spiral staircase has glaring light when descending, making it difficult to judge the boundaries of the steps and increasing the risk of falling.
The pedals are connected by a grating panel, and a light strip is installed behind the grating panel so that the light shines obliquely downwards. The light source passes through the grating panel and projects onto the pedals. At the same time, spiral protective ribs and protective glass are added to the pedals to form a safety barrier.
The glare from the light strips is reduced, ensuring visibility of the pedal edges, improving safety and lighting, preventing falls, and providing better protection for children.
Smart Images

Figure CN224134094U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the field of spiral staircase technology, and more specifically to an aluminum alloy spiral staircase with a quick assembly function. Background Technology
[0002] Spiral staircases are a unique and practical type of staircase widely used in the construction industry. They typically consist of treads, handrails, and a central column. The treads spiral upwards around the central column, while the handrails are installed on the outside of the treads for safety. Compared to straight or curved staircases, spiral staircases take up less space, making them ideal for spaces with limited capacity, such as small apartments or attics.
[0003] Existing spiral staircases, due to their small footprint and compact interior, suffer from poor lighting conditions at night. Some users install LED strips on the treads to brighten them; however, a problem arises in practical use: while the LED strips are clearly visible when going upstairs, providing good visibility, the entire staircase is brightly lit when going downstairs, making it difficult to judge the boundaries of the treads, leading to many falls. Utility Model Content
[0004] The purpose of this utility model is to provide an aluminum alloy spiral staircase with a quick assembly function, which uses a grating plate to connect two treads. This not only prevents adjacent treads from shifting, but also ensures good overall structural stability. A light strip is installed behind the grating plate, which shines diagonally downwards, and the light source passes through the grating plate and is projected onto the treads. This reduces the glare of the light strip, and the grating plate provides a shielding effect, ensuring lighting while allowing people to easily distinguish the boundaries of the treads, thus preventing missteps. This solves the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] An aluminum alloy spiral staircase with quick assembly function includes a column, on the outside of which multiple treads are arranged in a spiral shape; a grid plate is provided between every two adjacent treads.
[0007] The outer side of the upper end of the grille plate is integrally formed with a slot for easy fixing of light strips or light bars.
[0008] As a further technical solution of this utility model, the bottom of the column is welded to a fixed base; the bottom of the fixed base has a flange; and it is fixed to the ground by anchor bolts.
[0009] As a further technical solution of this utility model, the pedal component includes a fixed cylinder, and a fan-shaped pedal is welded on one side of the fixed cylinder; the inner diameter of the fixed cylinder is consistent with the outer diameter of the column and is sleeved on the column.
[0010] As a further technical solution of this utility model, a countersunk threaded hole is provided on one side of the fixed cylinder, and the fixed cylinder is locked and fixed to the column by a countersunk bolt.
[0011] As a further technical solution of this utility model, each pedal has a through hole at the end away from the fixed cylinder, and a vertical rod is provided in the through hole. The lower end of the vertical rod is locked and fixed by a nut, and its upper end is welded to the spiral handrail.
[0012] As a further technical solution of this utility model, multiple spiral protective ribs are welded to the inner side of the multiple uprights; the inner side of the spiral protective ribs is provided with protective glass.
[0013] As a further technical solution of this utility model, the upper end of the column is also fitted with a platform connector, and a platform is fixed inside the platform connector; the platform is also fixed to the building body by anchor bolts; and a side railing is fixed at the upper end of the platform.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. In this utility model, a grating plate connects two pedals; this not only prevents adjacent pedal components from shifting, but also ensures good overall structural stability; a light strip is installed behind the grating plate, which illuminates diagonally downwards, and the light source passes through the grating plate and is projected onto the pedal component; this reduces the glare of the light strip, and the grating plate's shielding ensures both lighting effect and allows people to easily distinguish the boundaries of the pedal component, thus preventing the occurrence of stepping into a hole;
[0016] 2. This utility model, combining spiral protective ribs and protective glass, forms an additional safety barrier, effectively preventing accidental falls. The protective glass not only enhances the overall aesthetics of the staircase but also ensures light transmission, allowing the staircase area to maintain good lighting even at night. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0018] Figure 2 This utility model Figure 1 A schematic diagram of the rear structure.
[0019] Figure 3 This utility model Figure 1 A schematic diagram of the bottom side structure.
[0020] Figure 4 This is a structural schematic diagram of the pedal component in this utility model.
[0021] Figure 5 This utility model Figure 4 Another perspective illustration.
[0022] Figure 6 This is a structural schematic diagram of the grating plate in this utility model.
[0023] In the diagram: 1-Column, 2-Fixed base, 3-Pedal piece, 4-Grate plate, 5-Upright, 6-Spiral handrail, 7-Protective glass, 8-Platform, 9-Side railing, 10-Platform connector, 11-Spiral protective rib, 12-Slot;
[0024] 31-Fixed cylinder, 32-Pedal foot, 33-Counterhole. Detailed Implementation
[0025] 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.
[0026] Please see Figure 1-6 In this embodiment of the utility model, an aluminum alloy spiral staircase with quick assembly function includes a column 1, on the outside of which multiple tread pieces 3 are arranged in a spiral shape; a grid plate 4 is provided between every two adjacent tread pieces 3.
[0027] The outer side of the upper end of the grille plate 4 is integrally formed with a slot 12 for easy fixing of light strips or light bars; the slot 12 is inclined.
[0028] More specifically, the bottom of the column 1 is welded to the fixed base 2; the fixed base 2 has a flange at the bottom; and is fixed to the ground by anchor bolts.
[0029] By adopting the above technical solution, the grille plate 4 connects the two pedals; this not only prevents the adjacent pedal pieces 3 from shifting, but also ensures good overall structural stability; a light strip is installed behind the grille plate 4, so that the light strip shines diagonally downwards, and the light source passes through the grille plate 4 and is projected onto the pedal piece 4; this reduces the glare of the light strip, and the grille plate 4 blocks the light, ensuring the lighting effect and allowing people to easily identify the boundary of the pedal piece 4, thereby avoiding the occurrence of stepping into the air.
[0030] In this embodiment, the pedal component 3 includes a fixing cylinder 31, and a fan-shaped pedal 32 is welded to one side of the fixing cylinder 31; the inner diameter of the fixing cylinder 31 is the same as the outer diameter of the column 1, and it is sleeved on the column 1.
[0031] More specifically, the fixed cylinder 31 has a countersunk threaded hole on one side, and the fixed cylinder 31 is locked and fixed to the column 1 by a countersunk bolt.
[0032] By adopting the above technical solution, the fixing cylinder 31 is sleeved on the column 1 and can be rotated freely before the pedal component 3 is locked, thereby adjusting the appropriate angle of the pedal component 3; after adjusting to the appropriate angle, the fixing cylinder 31 is locked and fixed to the column 1 by the countersunk bolt, thereby realizing the fixing and installation of the pedal component 3.
[0033] In this embodiment, each pedal 32 has a through hole at the end away from the fixed cylinder 31, and a vertical rod 5 is provided in the through hole. The lower end of the vertical rod 5 is locked and fixed by a nut, and its upper end is welded to the spiral handrail 6.
[0034] By adopting the above technical solutions, the spiral handrail 6 provides users with additional safety. This design not only ensures the convenience of spiral staircase installation but also greatly increases its safety factor in daily use. Furthermore, the curved design of the spiral handrail 6 conforms to ergonomic principles, making going up and down stairs more comfortable.
[0035] In this embodiment, multiple spiral protective ribs 11 are welded to the inner side of multiple uprights 5; the inner side of the spiral protective ribs 11 is provided with protective glass 7.
[0036] By adopting the above technical solution, the combination of the spiral protective rib 11 and the protective glass 7 forms an additional safety barrier, effectively preventing accidental falls. The protective glass 7 not only enhances the overall aesthetics of the staircase but also ensures light transmission, allowing the staircase area to maintain good lighting even at night.
[0037] It provides better protection, especially for younger children, preventing accidents caused by curiosity or carelessness when using stairs, and increasing the family's sense of security.
[0038] In this embodiment, the upper end of the column 1 is also fitted with a platform connector 10, and a platform 8 is fixed inside the platform connector 10; the platform 8 is also fixed to the building body by anchor bolts; and a side railing 9 is fixed at the upper end of the platform 8.
[0039] By adopting the above technical solution, platform 8 serves as the connection between the spiral staircase and the building wall, forming a stable transition space. The side railings 9 further enhance the stability of the overall structure and also provide safety protection.
[0040] The working principle of this utility model is as follows: The fixing cylinder 31 is sleeved on the column 1 and can rotate freely before the pedal piece 3 is locked, thereby adjusting the appropriate angle of the pedal piece 3; after adjusting to the appropriate angle, the fixing cylinder 31 is locked and fixed to the column 1 by the countersunk bolt, thereby realizing the fixing and installation of the pedal piece 3; then the grating plate 4 is connected between every two pedal pieces 3; this not only prevents adjacent pedal pieces 3 from shifting, but also ensures good overall structural stability; a light strip is set behind the grating plate 4, and the light strip shines diagonally downward, and the light source passes through the grating plate 4 and is projected onto the pedal piece 4; this reduces the glare of the light strip, and the grating plate 4 blocks the light, ensuring the lighting effect and allowing people to easily identify the boundary of the pedal piece 4, thereby avoiding the occurrence of stepping into a hole;
[0041] The spiral handrail 6 provides users with additional safety. This design not only ensures ease of installation during the spiral staircase process but also significantly increases its safety factor during daily use. Furthermore, the curved design of the spiral handrail 6 conforms to ergonomic principles, making going up and down stairs more comfortable.
[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. An aluminum alloy spiral stair with a quick assembly function, characterized by: It includes a column (1), on the outside of which multiple pedal pieces (3) are arranged in a spiral shape; a grid plate (4) is provided between every two adjacent pedal pieces (3); The outer side of the upper end of the grating plate (4) is integrally formed with a slot (12) for easy fixing of light strips or light bars.
2. The aluminum alloy spiral stair with a quick assembly function according to claim 1, characterized in that: The bottom of the column (1) is welded to the fixed base (2); the fixed base (2) has a flange at the bottom and is fixed to the ground by anchor bolts.
3. The aluminum alloy spiral stair with a quick assembly function according to claim 1, characterized in that: The pedal component (3) includes a fixed cylinder (31), and a fan-shaped pedal (32) is welded on one side of the fixed cylinder (31); the inner diameter of the fixed cylinder (31) is the same as the outer diameter of the column (1), and it is sleeved on the column (1).
4. The aluminum alloy spiral stair with a quick assembly function according to claim 3, characterized in that: The fixed cylinder (31) has a countersunk threaded hole on one side, and the fixed cylinder (31) is locked and fixed to the column (1) by a countersunk bolt.
5. The aluminum alloy spiral stair with a quick assembly function according to claim 3, characterized in that: Each pedal (32) has a through hole at one end away from the fixed cylinder (31), and a vertical rod (5) is provided in the through hole. The lower end of the vertical rod (5) is locked and fixed by a nut, and its upper end is welded to the spiral handrail (6).
6. The aluminum alloy spiral stair with a quick assembly function according to claim 5, characterized in that: Multiple spiral protective ribs (11) are welded to the inner side of multiple uprights (5); the inner side of the spiral protective ribs (11) is provided with protective glass (7).
7. The aluminum alloy spiral stair with a quick assembly function according to claim 5, characterized in that: The upper end of the column (1) is also fitted with a platform connector (10), and a platform (8) is fixed inside the platform connector (10); the platform (8) is also fixed to the building body by anchor bolts; and a side railing (9) is fixed at the upper end of the platform (8).