Adjustable LED decorative step stair
By combining the steel plate support structure and stone slabs of the adjustable LED decorative staircase, the problems of uneven tread size and poor installation stability in traditional staircase decoration are solved, achieving uniformity and efficient construction of treads in irregular spaces, and improving safety and aesthetics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN ANXING DECORATION DESIGN ENG
- Filing Date
- 2025-04-14
- Publication Date
- 2026-06-09
AI Technical Summary
Traditional decoration schemes, when used in the renovation of existing buildings or the construction of temporary staircases, suffer from uneven step sizes, poor installation stability, long construction periods, and difficulty in balancing functionality and aesthetics, while also requiring strict precision of the main structure.
Adjustable LED decorative stair treads are used, which are fixed with steel plate support structure and expansion bolts. Combined with horizontal and vertical stone slabs and LED light trough components, a rigid stone covering layer is formed to ensure that the height and width of the step units are consistent. T-shaped and L-shaped steel plate structures are used to achieve rapid installation.
It achieves a uniform height and width of steps in irregular spaces, improves construction efficiency and safety, enhances decorative effects, overcomes dependence on the main structure, and improves the safety level and visual appeal of the staircase.
Smart Images

Figure CN224338541U_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of interior decorative staircase technology, specifically to adjustable LED decorative staircase. Background Technology
[0002] In the renovation of existing buildings or the construction of temporary staircases, the main concrete structure often suffers from substandard tread dimensions due to construction deviations or design changes, or a staircase needs to be quickly added to a structure without a pre-installed staircase. Traditional decorative solutions are limited by structural irregularities, resulting in uneven tread dimensions, poor installation stability, and long construction periods, and it is difficult to balance functionality and aesthetics. Therefore, designing a staircase that breaks through the stringent requirements of traditional staircase decoration on the precision of the main structure and provides a highly finished decorative staircase for irregular spaces has become a technical problem to be solved. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of the above-mentioned situation by proposing an adjustable LED decorative staircase that overcomes the strong dependence on the main structure and ensures consistent step height and width.
[0004] To achieve the above objectives, the technical solution of this invention is as follows: an adjustable LED decorative staircase, comprising several step units, each step unit including a steel plate support structure, expansion bolts, an upper horizontal stone slab, a lower horizontal stone slab, an LED light trough assembly, an inner vertical stone slab, and an outer vertical stone slab, wherein...
[0005] The steel plate support structure includes welded vertical steel plates and horizontal steel plates. The vertical steel plates are fixed to the vertical surfaces corresponding to the building's staircase wall by expansion bolts. The cantilevered portion of the horizontal steel plates extending outward from the vertical steel plates serves as the step support plate. The upper horizontal stone slab is laid on the upper surface of the cantilevered portion of the horizontal steel plate through a cement mortar leveling layer. The lower horizontal stone slab is bonded to the lower surface of the cantilevered portion of the horizontal steel plate using stone adhesive. The outer vertical stone slab is bonded to the bottom edge of the upper horizontal stone slab and the outer end face of the horizontal steel plate. The LED light trough assembly is located in the groove formed by the lower horizontal stone slab, the outer vertical stone slab, and the horizontal steel plate. The inner vertical stone slab is vertically positioned between the inner side of the bottom surface of the lower horizontal stone slab and the upper horizontal stone slab of the next step unit.
[0006] The steel plate support structure includes an L-shaped steel plate structure and a T-shaped steel plate structure. The L-shaped steel plate structure is set on the vertical surface corresponding to the building's stepped wall, and the T-shaped steel plate structure is set on both the vertical and horizontal surfaces corresponding to the building's stepped wall. In the T-shaped steel plate structure, the inner part of the horizontal steel plate is fixed to the horizontal surface of the building's stepped wall by horizontal bolts.
[0007] The LED light trough assembly includes an aluminum alloy base, an LED light strip embedded in the base, and a detachable acrylic light-transmitting sheet at the opening of the light trough.
[0008] The outer end face of the upper horizontal stone slab is provided with downward-sloping anti-slip texture.
[0009] The upper horizontal stone slabs on the tread units of the topmost staircase are laid on the corresponding horizontal surface of the building's staircase wall using stone adhesive and a cement mortar leveling layer.
[0010] The cement mortar leveling layer has a thickness of 20±2mm, a cement to sand ratio of 1:3, and a concrete interface agent is applied to the surface of the leveling layer.
[0011] The height and width of the step units are the same.
[0012] The steel plate support structure is welded from 10 mm thick steel plates.
[0013] The expansion bolt is an M8 expansion bolt.
[0014] By adopting the above structure, this new type of building uses a steel plate support structure as the core load-bearing system. Through the rigid anchoring of vertical steel plates and expansion bolts on the vertical surface of the building structure wall, and the double fixing of the inner horizontal surface of the T-shaped steel plate and the horizontal bolts on the horizontal surface of the structure, it can quickly adapt and install irregular or temporary building interfaces. The cantilevered horizontal steel plate precisely controls the step width through standardized dimensions. Combined with the bonding combination of the upper and lower horizontal stone slabs and the inner and outer vertical stone slabs, a rigid stone covering layer is constructed. The short side design of the lower horizontal stone slab, the anti-slip texture of the outer stone, and the concealed LED light trough components form a stepped lighting and anti-slip integrated system. At the same time, it ensures that the height and width of the step unit are strictly uniform, and relies on the vertical overlap of the inner vertical stone slabs between the upper and lower steps to form a continuous and stable decorative structure. It has the advantages of convenient construction, structural adjustability, and decorative functionality, effectively overcoming the dependence of traditional processes on the precision of the main structure, and improving the safety level and visual aesthetics of the staircase. Therefore, this new type of construction overcomes the high dependence of traditional stepping technology on the main structure, and while ensuring strict uniformity in step height and width, it significantly improves safety, aesthetics and construction efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the cross-sectional structure of this utility model;
[0016] Figure 2 yes Figure 1 Enlarged schematic diagram of a partial structure in section A;
[0017] Figure 3 yes Figure 1 Enlarged schematic diagram of a partial structure in section B;
[0018] Figure 4 yes Figure 1 Enlarged schematic diagram of a partial structure in section C. Detailed Implementation
[0019] The following is in conjunction with the appendix Figure 1-4 The specific embodiments of this novel invention will be described in further detail.
[0020] The adjustable LED decorative staircase of this embodiment includes several step units 100. Each step unit 100 includes a steel plate support structure 1, expansion bolts 2, an upper horizontal stone slab 3, a lower horizontal stone slab 4, an LED light trough assembly 5, an inner vertical stone slab 6, and an outer vertical stone slab 7.
[0021] The steel plate support structure 1 includes a welded vertical steel plate 11 and a horizontal steel plate 12. The vertical steel plate 11 is fixed to the vertical surface 201 corresponding to the building staircase wall 200 by expansion bolts 2. The cantilevered portion 121 of the horizontal steel plate 12 extending outward from the vertical steel plate 11 serves as a step support plate. The upper horizontal stone slab 3 is laid on the upper surface of the cantilevered portion 121 of the horizontal steel plate 12 through a cement mortar leveling layer 210. The lower horizontal stone slab 4 is bonded to the cantilevered portion 121 of the horizontal steel plate 12 by stone adhesive 8. The lower surface of the cantilever section 121 has an outer vertical stone slab 7 bonded to the bottom edge of the upper horizontal stone slab 3 and the outer end face of the horizontal steel plate 12. The LED light trough assembly 5 is located in the groove formed by the lower horizontal stone slab 4, the outer vertical stone slab 7, and the horizontal steel plate 12. The inner vertical stone slab 6 is vertically arranged between the inner side of the bottom surface of the lower horizontal stone slab 4 and the upper horizontal stone slab 3 of the next step unit. The gap between the inner vertical stone slab 6 and the vertical steel plate 11 is filled with a cement mortar leveling layer 210.
[0022] The steel plate support structure 1 includes an L-shaped steel plate structure and a T-shaped steel plate structure, such as... Figure 2-3 As shown in the enlarged structural diagram, the L-shaped steel plate structure is installed on the vertical surface 201 corresponding to the stepped wall 200, and the T-shaped steel plate structure is installed on both the vertical surface 201 and the horizontal surface 202 corresponding to the stepped wall 200.
[0023] like Figure 4 As shown in the enlarged structural diagram, in the T-shaped steel plate structure, the inner part 122 of the horizontal steel plate 12 is fixed to the horizontal surface 202 of the building staircase wall 200 by horizontal bolts 9.
[0024] The LED light trough assembly 5 includes an aluminum alloy base 51, an LED light strip 52 embedded in the base, and a detachable acrylic light-transmitting sheet 53 at the opening of the light trough.
[0025] The outer end face of the upper horizontal stone slab 3 is provided with downwardly inclined anti-slip texture 31.
[0026] The upper horizontal stone slab 3 on the step unit 100 of the topmost staircase is laid on the horizontal surface 202 corresponding to the building staircase wall 200 through stone adhesive 8 and cement mortar leveling layer 210.
[0027] The cement mortar leveling layer 210 has a thickness of 20±2mm, a cement to sand ratio of 1:3, and a concrete interface agent is applied to the surface of the leveling layer.
[0028] The height and width of the step unit 100 are the same.
[0029] The steel plate support structure 1 is welded from 10 mm thick steel plates.
[0030] The expansion bolt 2 is an M8 expansion bolt.
[0031] During installation, the base layer is first treated and positioned: the vertical surface 201 and horizontal surface 202 of the building stair wall 200 are marked with lines for positioning, the base layer is cleaned and a concrete interface agent is applied; for the top step unit 100, a 20±2mm thick 1:3 cement mortar leveling layer 210 is laid on the horizontal surface 202, and after curing, it serves as the reference surface.
[0032] Then install the steel plate support structure 1: select L-shaped or T-shaped steel plate support structure 1 according to the structure type. The steel plate support structure 1 is welded from 10mm thick steel plate.
[0033] L-shaped steel plate installation: Place the vertical steel plate 11 tightly against the vertical surface 201 and fix it by drilling vertical holes with M8 expansion bolts 2 to ensure that the outer end of the cantilevered horizontal steel plate 12 is aligned with the positioning line.
[0034] T-shaped steel plate installation: The vertical steel plate 11 is also fixed to the vertical surface 201 with M8 expansion bolts 2, and the inner part 122 of the horizontal steel plate 12 is anchored to the horizontal surface 202 by horizontal bolts 9, and the outer cantilever part 121 is flush with the adjacent step unit.
[0035] Next, the stone slabs and LED light trough components 5 are pre-installed:
[0036] A cement mortar leveling layer 210 is filled on the cantilevered horizontal steel plate 12, and the outer end face of the upper horizontal stone slab 3 is pre-processed with anti-slip texture 31. The lower surface is simultaneously bonded with the lower horizontal stone slab 4, which is shorter than the upper plate.
[0037] An LED light trough assembly 5 is embedded in the groove formed by the outer side of the lower horizontal stone slab 4, the outer end face of the cantilever steel plate 12, and the outer vertical stone slab 7: the aluminum alloy base 51 is fixed to the bottom of the groove, the LED light strip 52 is embedded in it, and the surface is covered with a detachable acrylic light-transmitting sheet 53.
[0038] Then install the vertical stone slabs:
[0039] On the outside of the step unit 100: the outer vertical stone slab 7 is vertically bonded to the bottom edge of the upper horizontal stone slab 3 and the outer end face of the cantilever steel plate 12 by adhesive 8, forming a closed interface with the lower horizontal stone slab 4.
[0040] On the inside of step unit 100: between adjacent step units, the inner vertical stone slab 6 is vertically bonded to the inner bottom surface of the lower horizontal stone slab 4 and the top surface of the next level upper horizontal stone slab 3 to form a continuous joint.
[0041] Then, finish the top step: The upper horizontal stone slab 3 of the topmost step unit is directly laid on the horizontal surface 202 of the building stair wall 200 using adhesive 8 and leveling layer 210, ensuring that it is consistent with the height of the steps below.
[0042] Finally, functional debugging and acceptance are carried out: the LED light strip 52 is powered on to test the lighting effect, the integrity of the anti-slip texture 31 and the uniformity of the height and width of the step unit 100 are checked, the flatness of the acrylic light-transmitting sheet 53 is adjusted, and the surface is cleaned to complete the construction.
[0043] As can be seen from the above, this new type of construction overcomes the high dependence of traditional stepping technology on the main structure, and while ensuring strict uniformity in step height and width, it significantly improves safety, aesthetics and construction efficiency.
[0044] Of course, there may be other embodiments of this utility model. Without departing from the spirit and essence of this utility model, those skilled in the art can make various corresponding changes and modifications based on the utility model, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.
Claims
1. An adjustable LED decorative staircase, comprising several step units (100), characterized in that: Each step unit (100) includes a steel plate support structure (1), expansion bolts (2), an upper horizontal stone slab (3), a lower horizontal stone slab (4), an LED light trough assembly (5), an inner vertical stone slab (6), and an outer vertical stone slab (7), wherein, The steel plate support structure (1) includes welded vertical steel plates (11) and horizontal steel plates (12). The vertical steel plate (11) is fixed to the vertical surface (201) corresponding to the building stair wall (200) by expansion bolts (2). The cantilevered part (121) of the horizontal steel plate (12) extending outward from the vertical steel plate (11) serves as a step support plate. The upper horizontal stone slab (3) is laid on the upper surface of the cantilevered part (121) of the horizontal steel plate (12) through a cement mortar leveling layer (210). The lower horizontal stone slab (4) The stone is bonded to the lower surface of the cantilevered part (121) of the horizontal steel plate (12) by stone adhesive (8). The outer vertical stone plate (7) is bonded to the bottom edge of the upper horizontal stone plate (3) and the outer end face of the horizontal steel plate (12). The LED light trough assembly (5) is set in the groove formed by the lower horizontal stone plate (4), the outer vertical stone plate (7) and the horizontal steel plate (12). The inner vertical stone plate (6) is vertically set between the inner side of the bottom surface of the lower horizontal stone plate (4) and the upper horizontal stone plate (3) of the next step unit.
2. The adjustable LED decorative staircase according to claim 1, characterized in that: The steel plate support structure (1) includes an L-shaped steel plate structure and a T-shaped steel plate structure. The L-shaped steel plate structure is located on the vertical surface (201) corresponding to the building stair wall (200), and the T-shaped steel plate structure is located on the vertical surface (201) and horizontal surface (202) corresponding to the building stair wall (200). In the T-shaped steel plate structure, the inner part (122) of the horizontal steel plate (12) is fixed to the horizontal surface (202) of the building stair wall (200) by horizontal bolts (9).
3. The adjustable LED decorative staircase according to claim 2, characterized in that: The LED light trough assembly (5) includes an aluminum alloy base (51), an LED light strip (52) embedded in the base, and a detachable acrylic light-transmitting sheet (53) at the opening of the light trough.
4. The adjustable LED decorative staircase according to claim 3, characterized in that: The outer end face of the upper horizontal stone slab (3) is provided with downwardly inclined anti-slip texture (31).
5. The adjustable LED decorative staircase according to claim 4, characterized in that: The upper horizontal stone slab (3) on the step unit (100) of the topmost step staircase is laid on the horizontal surface (202) corresponding to the building staircase wall (200) by stone adhesive (8) and cement mortar leveling layer (210).
6. The adjustable LED decorative staircase according to claim 5, characterized in that: The cement mortar leveling layer (210) has a thickness of 20±2mm, a cement to sand ratio of 1:3, and a concrete interface agent is applied to the surface of the leveling layer.
7. The adjustable LED decorative staircase according to claim 6, characterized in that: The height and width of the step unit (100) are the same.
8. The adjustable LED decorative staircase according to claim 7, characterized in that: The steel plate support structure (1) is welded from 10 mm thick steel plates.
9. The adjustable LED decorative staircase according to claim 8, characterized in that: The expansion bolt (2) is an M8 expansion bolt.