Foldable surface protection device for assembly type stairs
By designing a foldable surface protection device for prefabricated stairs, the problem of easy damage to prefabricated stairs during construction was solved, achieving efficient disassembly and assembly, all-round protection and convenient transportation, thus improving construction quality and efficiency.
Patent Information
- Application Number
- CN202520449739.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In prefabricated building construction, the surface of prefabricated stairs and the inside and outside corners are easily damaged during transportation, hoisting and installation. Existing protective measures have poor fit, low operation efficiency, transportation difficulties and limited functions, which affect the construction quality and efficiency.
Design a prefabricated foldable surface protection device for stairs, including tread cover, step cover, flexible connection layer, detachable hinge assembly and connector. The folding and fixing of the protection unit is achieved through the flexible connection layer and detachable hinge assembly, and all-round protection is provided by elastic material and buffer layer.
It achieves efficient folding and storage of the protection unit, improves construction efficiency, reduces transportation costs, provides all-round protection, and the materials can be reused, reducing resource waste.
Smart Images

Figure CN223865473U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a foldable surface protection device for prefabricated stairs. Background Technology
[0002] In prefabricated building construction, prefabricated stairs are a key component. Their surfaces, as well as internal and external corners, are susceptible to collisions, dust, or external impacts during transportation, hoisting, and installation, leading to surface scratches, structural deformation, and even grout blockage, severely affecting construction quality and efficiency. Traditional protective measures often involve temporarily covering the stairs with spliced wooden boards on-site, which has significant drawbacks.
[0003] Poor fit: The wooden boards are difficult to fit completely into the inside corners of the stairs, resulting in incomplete protection and easy damage to exposed areas;
[0004] Inefficient operation: On-site assembly relies on manual labor, which is time-consuming and labor-intensive, and the wooden structure has a low reuse rate, increasing construction costs;
[0005] Transportation difficulties: The non-foldable rigid structure occupies a large space and has high turnover and transportation costs;
[0006] Limited functionality: Lacking anti-slip design, construction workers are prone to slipping and falling, and there is no cushioning layer to absorb impact, resulting in limited protection.
[0007] Therefore, there is an urgent need for a modular protection device that combines efficient disassembly and assembly, comprehensive protection, and convenient transportation. Utility Model Content
[0008] The purpose of this utility model is to solve the problems mentioned above in the background technology and to propose a foldable surface protection device for prefabricated stairs.
[0009] The objective of this utility model can be achieved through the following technical solutions:
[0010] A prefabricated foldable surface protection device for stairs includes multiple protection units, each protection unit comprising a tread cover and a step cover for fitting the stair surface;
[0011] A flexible connecting layer is provided at the inside corner between the step cover and the stair cover. Its shape is adapted to the inside corner of the staircase, so that the step cover and the stair cover can be folded symmetrically.
[0012] A detachable hinge assembly is installed at the external corner of the protective unit, and includes a hinge and a pivot, for folding and fixing the protective unit;
[0013] A connector for connecting the detachable hinge assembly to the pre-embedded structure of the stair body.
[0014] As a further embodiment of this utility model: the flexible connecting layer is made of elastic material and its coverage extends to the edges of the steps and stairs.
[0015] As a further embodiment of this invention, the elastic material includes rubber, silicone, or polyurethane.
[0016] As a further embodiment of this utility model: the detachable hinge assembly supports the folding angle of the protective unit from ° to °.
[0017] As a further embodiment of this utility model, the front end of the step cover is provided with an anti-slip structure.
[0018] As a further embodiment of this utility model, the anti-slip structure is raised stripes, a granular coating, or an embedded rubber strip.
[0019] As a further embodiment of this utility model: the connector is a detachable fastener, which includes bolts, clips, or pins.
[0020] As a further embodiment of this utility model, the materials of the step cover and the stair cover include wood, plastic or composite materials.
[0021] As a further embodiment of this utility model, the protective unit also includes an auxiliary fixing strap for binding and fixing the step cover and the stair cover in the folded state.
[0022] As a further embodiment of this utility model: a buffer pad layer is provided on the inner side of the flexible connecting layer, and the buffer pad layer is made of sponge or foam material.
[0023] The beneficial effects of this utility model are:
[0024] Efficient folding and storage: Through the detachable hinge assembly composed of hinges and pivots, combined with the elastic deformation characteristics of the flexible connecting layer, the protective unit can be folded to 150°-180°, greatly reducing the volume and lowering transportation and storage costs.
[0025] Modular and quick assembly / disassembly: Standardized protection units are matched with the staircase's embedded structure through connectors, achieving "factory prefabrication and on-site assembly," improving construction efficiency by more than 50%.
[0026] Comprehensive protection:
[0027] The flexible connecting layer fits tightly against the inside corner to prevent dust intrusion and collision damage;
[0028] The cushioning layer (sponge or foam material) absorbs impact and reduces scratches on the stair surface;
[0029] Environmentally friendly and economical materials: The cover can be made of wood, plastic or composite materials, balancing strength and lightweight, and can be reused to reduce resource waste;
[0030] Wide applicability: The modular design adapts to different stair sizes and shapes, expanding the application scenarios of the device. Attached Figure Description
[0031] The present invention will be further described below with reference to the accompanying drawings.
[0032] Figure 1 This is a schematic diagram of the structure of this utility model;
[0033] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;
[0034] Figure 3 This is a top view of the present invention.
[0035] In the diagram: 1. Connector; 2. Anti-slip structure; 3. Flexible connecting layer; 4. Step cover; 5. Rotating shaft; 6. Hinge; 8. Step cover. Detailed Implementation
[0036] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0037] Example 1, please refer to Figure 1-3 As shown, this utility model is a prefabricated foldable surface protection device for stairs, which includes multiple protection units. Each protection unit includes a step cover 4 and a stair cover 8 for fitting the stair surface.
[0038] A flexible connecting layer 3 is disposed at the inside corner between the step cover 4 and the stair cover 8. Its shape is adapted to the inside corner of the staircase, so that the step cover 4 and the stair cover 8 can be folded symmetrically.
[0039] A detachable hinge assembly is installed at the external corner of the protective unit, including a hinge 6 and a pivot 5, for folding and fixing the protective unit;
[0040] Connector 1 is used to connect the detachable hinge assembly to the pre-embedded structure of the stair body.
[0041] Example 2, please refer to Figure 1-3As shown, this utility model is a prefabricated foldable surface protection device for stairs, which includes multiple protection units. Each protection unit includes a step cover 4 and a stair cover 8 for fitting the stair surface.
[0042] The flexible connecting layer 3 is disposed at the inside corner between the step cover 4 and the step cover 8. Its shape is adapted to the inside corner of the staircase, so that the step cover 4 and the step cover 8 can be folded symmetrically. The flexible connecting layer 3 is made of elastic material and its coverage extends to the edge of the step and the step. The elastic material includes rubber, silicone or polyurethane.
[0043] A detachable hinge assembly is installed at the external corner of the protective unit, including a hinge 6 and a pivot 5, for folding and fixing the protective unit;
[0044] Connector 1 is used to connect the detachable hinge assembly to the pre-embedded structure of the stair body.
[0045] Example 3, please refer to Figure 1-3 As shown, this utility model is a prefabricated foldable surface protection device for stairs, which includes multiple protection units. Each protection unit includes a step cover 4 and a stair cover 8 for fitting the stair surface.
[0046] The flexible connecting layer 3 is disposed at the inside corner between the step cover 4 and the step cover 8. Its shape is adapted to the inside corner of the staircase, so that the step cover 4 and the step cover 8 can be folded symmetrically. The flexible connecting layer 3 is made of elastic material and its coverage extends to the edge of the step and the step. The elastic material includes rubber, silicone or polyurethane.
[0047] The front end of the step cover 4 is provided with an anti-slip structure 2, which is a raised stripe, a particle coating or an embedded rubber strip.
[0048] A detachable hinge assembly is installed at the external corner of the protective unit, including a hinge 6 and a pivot 5, for folding and fixing the protective unit. The detachable hinge assembly supports the folding angle of the protective unit from 150° to 180°.
[0049] Connector 1 is used to connect the detachable hinge assembly to the pre-embedded structure of the stair body.
[0050] Example 4, please refer to Figure 1-3 As shown, this utility model is a prefabricated foldable surface protection device for stairs, which includes multiple protection units. Each protection unit also includes an auxiliary fixing strap for binding and fixing the step cover 4 and the step cover 8 in the folded state. Each protection unit includes a step cover 4 and a step cover 8 for fitting the stair surface.
[0051] The flexible connecting layer 3 is disposed at the inside corner between the step cover 4 and the step cover 8. Its shape is adapted to the inside corner of the staircase, so that the step cover 4 and the step cover 8 can be folded symmetrically. The flexible connecting layer 3 is made of elastic material and its coverage extends to the edge of the step and the step. The elastic material includes rubber, silicone or polyurethane.
[0052] The flexible connecting layer 3 has a buffer pad layer on its inner side, and the buffer pad layer is made of sponge or foam material.
[0053] The front end of the step cover 4 is provided with an anti-slip structure 2, which is a raised stripe, a granular coating or an embedded rubber strip. The materials of the step cover 4 and the step cover 8 include wood, plastic or composite materials.
[0054] A detachable hinge assembly is installed at the external corner of the protective unit, including a hinge 6 and a pivot 5, for folding and fixing the protective unit. The detachable hinge assembly supports the folding angle of the protective unit from 150° to 180°.
[0055] Connector 1 is used to connect the detachable hinge assembly to the pre-embedded structure of the stair body. Connector 1 is a detachable fastener, which includes bolts, clips, or pins.
[0056] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.
Claims
1. A foldable surface protection device for prefabricated stairs, characterized in that, It includes multiple protective units, each containing a step cover (4) and a stair cover (8) for conforming to the stair surface; A flexible connecting layer (3) is provided at the inside corner between the step cover (4) and the stair cover (8), and its shape is adapted to the inside corner of the staircase so that the step cover (4) and the stair cover (8) can be folded symmetrically. A detachable hinge assembly is installed at the external corner of the protective unit, including a hinge (6) and a pivot (5), for folding and fixing the protective unit; Connector (1) is used to connect the detachable hinge assembly to the pre-embedded structure of the stair body.
2. The prefabricated staircase foldable surface protection device according to claim 1, characterized in that, The flexible connecting layer (3) is made of elastic material and extends to the edges of the steps and stairs.
3. The prefabricated staircase foldable surface protection device according to claim 2, characterized in that, The elastic material includes rubber, silicone, or polyurethane.
4. The prefabricated staircase foldable surface protection device according to claim 1, characterized in that, The detachable hinge assembly supports the protective unit to fold at an angle of 150° to 180°.
5. A foldable surface protection device for prefabricated stairs according to claim 1, characterized in that, The front end of the step cover (4) is provided with an anti-slip structure (2).
6. A prefabricated staircase foldable surface protection device according to claim 5, characterized in that, The anti-slip structure (2) is raised stripes, a granular coating, or an embedded rubber strip.
7. A prefabricated staircase foldable surface protection device according to claim 1, characterized in that, The connector (1) is a detachable fastener, which includes bolts, clips or pins.
8. A foldable surface protection device for prefabricated stairs according to claim 1, characterized in that, The materials of the step cover (4) and the step cover (8) include wood, plastic or composite materials.
9. A foldable surface protection device for prefabricated stairs according to claim 1, characterized in that, The protective unit also includes an auxiliary fixing strap for binding and fixing the step cover (4) and the step cover (8) in the folded state.
10. A prefabricated staircase foldable surface protection device according to claim 1, characterized in that, The flexible connecting layer (3) has a buffer pad layer on its inner side, and the buffer pad layer is made of sponge or foam material.