Turnover protection tool for prefabricated staircase

By using interlocking protective devices made of polyvinyl chloride plastic sheets, the problems of traditional prefabricated stair protection devices being time-consuming, labor-intensive, and difficult to reuse are solved. This achieves stable protection for prefabricated staircases and allows for multiple reuses, thus reducing construction costs.

CN223867679UActive Publication Date: 2026-02-03SHANGHAI PUDONG NEW AREA CONSTR GRP CO LTD
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Patent Information

Application Number
CN202520354888.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-03
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Traditional prefabricated stair protection equipment is time-consuming, labor-intensive, and difficult to reuse, resulting in high construction costs and the risk of damaging the staircase.

Method used

The head step, vertical step, horizontal step, and tail step are made of polyvinyl chloride plastic sheets and are fixed by connecting buckles to form an interlocking protective structure, avoiding the use of traditional steel nail fixing methods.

Benefits of technology

It enables multiple reuses of prefabricated stairs, ensures stable installation, reduces material waste, lowers construction costs, and provides anti-slip function to protect the integrity of the stairs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223867679U_ABST
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Abstract

The utility model discloses a turnover protection appliance of prefabricated staircase, including head step board, vertical plate, transverse plate and tail step board, the head step board is provided on the first step of prefabricated staircase, the tail step board is provided on the last step of prefabricated staircase, the transverse plate is provided on the vertical plate, and the transverse plate is provided on the last step of prefabricated staircase. The transverse plates are arranged on middle steps of the prefabricated stair, the vertical plates are located between every two adjacent transverse plates and fixed through the connecting buckles, and the head step plate and the tail step plate are connected with the vertical plates through the connecting buckles. The turnover protection tool for the prefabricated staircase can be recycled, the protection tool plates are buckled with one another, the protection tool plates are firm and stable after being installed, and it can be guaranteed that the prefabricated staircase is not damaged.
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Description

Technical Field

[0001] This utility model relates to a reusable protective device, and more particularly to a reusable protective device for a prefabricated staircase. Background Technology

[0002] With the continuous emergence and completion of resettlement housing projects, various processes and nodes in the construction process have become more standardized, especially the finished product protection stage for various individual units after construction. Due to the frequent rework of completed sub-projects, construction and supervision units have attached great importance to finished product protection measures this year. Most resettlement housing projects adopt prefabricated structures, and the coverage of finished product protection measures is extremely high. Among them, prefabricated stairs are very susceptible to damage such as scratches, chipped edges, and broken corners after construction. Traditionally, prefabricated stairs are mostly fixed to wooden formwork with steel nails to prevent them from being directly impacted or scratched, thus avoiding damage and defects. This method is relatively cumbersome, and the hammering and chiseling of steel nails for fixing also carries the risk of damaging the stairs; the formwork material after removing the steel nails is also mostly not reusable. In addition to high labor and material costs, the laying and installation are also time-consuming and labor-intensive, which does not conform to the overall policy of cost reduction and efficiency improvement in resettlement housing construction.

[0003] Therefore, it is necessary to improve the current situation where the traditional method of installing protective equipment is time-consuming, labor-intensive, and makes it difficult to reuse protective materials, so as to achieve the goal of saving materials and labor in the process of protecting finished products. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a reusable protective device for prefabricated stairs, which can be reused. The various protective panels are interlocked and are firmly and stably installed, ensuring that the prefabricated stairs are not damaged.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is to provide a reusable protective device for prefabricated stairs, including a head step plate, a vertical plate, a horizontal plate, and a tail step plate. The head step plate is disposed on the first step of the prefabricated stairs, the tail step plate is disposed on the last step of the prefabricated stairs, the horizontal plate is disposed on the middle step of the prefabricated stairs, the vertical plate is located between two adjacent horizontal plates and is fixed by a connecting buckle, and the head step plate and the tail step plate are connected to the vertical plate by the connecting buckle.

[0006] Furthermore, the connecting buckle includes a connecting strap, which is bent at a right angle. One end of the connecting strap is provided with a first button, and the other end of the connecting strap is provided with a second button. Bottom buckles are provided on the vertical plate and the horizontal plate to connect the first button or the second button.

[0007] Furthermore, the first and second buttons on the connecting buckle located above the vertical plate are located on the outer side of the connecting strap.

[0008] Furthermore, the first and second buttons on the connecting buckle located below the vertical plate are located on the inner side of the connecting strap.

[0009] Furthermore, the surface of the transverse plate is provided with anti-slip ripples.

[0010] Furthermore, the surfaces of the head tread and the tail tread are provided with anti-slip ripples. The head of the head tread is bent inward and fits against the back of the head of the precast staircase, and the tail of the tail tread is bent inward and fits against the front of the tail of the precast staircase.

[0011] Furthermore, the head step plate, vertical plate, horizontal plate, and tail step plate are all made of polyvinyl chloride plastic sheets.

[0012] Compared with the prior art, this utility model has the following advantages: The reusable protective device for prefabricated stairs provided by this utility model can be reused multiple times when the prefabricated stairs are of the same size. Each protective panel is interlocked, ensuring a firm and stable installation and preventing damage to the prefabricated stairs. The main body is made of polyvinyl chloride plastic sheeting, which is wear-resistant and pressure-resistant. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the reusable protective device for the prefabricated staircase of this utility model.

[0014] Figure 2 This is a schematic diagram of the connecting buckle structure used above the vertical plate of the reusable protective device of this utility model;

[0015] Figure 3 This is a schematic diagram of the connecting buckle structure used at the bottom of the vertical plate of the reusable protective device of this utility model.

[0016] The diagram is marked as follows:

[0017] 1. Precast staircase 2. Head treads 3. Vertical slabs

[0018] 4. Horizontal plate; 5. Tail step plate; 6. Connecting buckle.

[0019] 7 Anti-slip ripples 61 First button 62 Second button

[0020] 63 Connecting belt Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Figure 1 This is a schematic diagram of the reusable protective device for the prefabricated staircase of this utility model.

[0023] Please see Figure 1 The reusable protective device for prefabricated stairs provided by this utility model includes a head step plate 2, a vertical plate 3, a horizontal plate 4, and a tail step plate 5. The head step plate 2 is disposed on the first step of the prefabricated stairs 1, the tail step plate 5 is disposed on the last step of the prefabricated stairs 1, the horizontal plate 4 is disposed on the middle step of the prefabricated stairs 1, the vertical plate 3 is located between two adjacent horizontal plates 4 and is fixed by a connecting buckle 6, and the head step plate 2, the tail step plate 5 are connected to the vertical plate 3 by the connecting buckle 6.

[0024] This utility model provides a reusable protective device for prefabricated stairs. The head tread 2, vertical tread 3, horizontal tread 4, and tail tread 5 are all made of polyvinyl chloride (PVC) plastic sheets, eliminating the need for traditional waste template materials and reducing the generation of wood chips and splinters. Furthermore, due to the wear-resistant and durable properties of plastic, it can be reused multiple times in different projects. After the prefabricated stairs 1 are installed, to protect their overall integrity and avoid missing edges or corners, the prefabricated PVC plastic sheets are laid on the completed stairs 1 according to their dimensions. After all the vertical tread 3, horizontal tread 4, head tread 2, and tail tread 5 are laid, adjacent sheets are connected and fixed at the joints between the horizontal tread 4 and the vertical tread 3 using a button strap structure.

[0025] Please continue reading Figure 2 and Figure 3 The present invention provides a reusable protective device for prefabricated stairs. The connecting buckle 6 includes a connecting strap 63, which is bent at a right angle. One end of the connecting strap 63 is provided with a first button 61, and the other end is provided with a second button 62. Bottom buckles are provided on the vertical plate 3 and the horizontal plate 4 to connect the first button 61 or the second button 62. The bottom buckle and the first button 61 or the second button 62 are male and female to each other. This button connection method is safe and convenient, eliminating the cumbersome and unsafe method of fixing with nails in traditional wooden formwork protective devices. In addition, a notch can be left at the bottom buckle position to ensure the overall flatness of the installed panels.

[0026] In a preferred embodiment, the first button 61 and the second button 62 on the connecting buckle 6 located above the vertical plate 3 are disposed on the outer side of the connecting strap 63, such as... Figure 2 As shown. The first button 61 and the second button 62 on the connecting buckle 6 located below the vertical plate 3 are provided on the inner side of the connecting strap 63, as shown. Figure 3 As shown. This design can further improve the efficiency of disassembly and assembly. After the panels are installed, they can be fixed in place by simply connecting the notches of adjacent panels with button fasteners.

[0027] As a preferred embodiment, the reusable protective device of this utility model also provides an anti-slip design, which can effectively prevent construction workers from slipping and falling when going up and down stairs. Specifically, the surface of the transverse plate 4 is provided with anti-slip corrugations 7. The surfaces of the head step plate 2 and the tail step plate 5 are provided with anti-slip corrugations 7. The head of the head step plate 2 is bent inward and fits against the back of the head of the prefabricated stair 1, and the tail of the tail step plate 5 is bent inward and fits against the front of the tail of the prefabricated stair 1. The anti-slip corrugations 7 are integrally formed with the plates.

[0028] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A reusable protective device for prefabricated stairs, characterized in that, The structure includes a head step plate (2), a vertical plate (3), a horizontal plate (4), and a tail step plate (5). The head step plate (2) is located on the first step of the prefabricated staircase (1), the tail step plate (5) is located on the last step of the prefabricated staircase (1), the horizontal plate (4) is located on the middle step of the prefabricated staircase (1), the vertical plate (3) is located between two adjacent horizontal plates (4) and is fixed by a connecting buckle (6), and the head step plate (2) and the tail step plate (5) are connected to the vertical plate (3) by the connecting buckle (6).

2. The reusable protective device for prefabricated stairs as described in claim 1, characterized in that, The connecting buckle (6) includes a connecting strap (63), which is bent at a right angle. One end of the connecting strap (63) is provided with a first button (61), and the other end of the connecting strap (63) is provided with a second button (62). The vertical plate (3) and the horizontal plate (4) are provided with bottom buckles to connect the first button (61) or the second button (62).

3. The reusable protective device for prefabricated stairs as described in claim 2, characterized in that, The first button (61) and the second button (62) on the connecting buckle (6) located above the vertical plate (3) are located on the outer side of the connecting strip (63).

4. The reusable protective device for prefabricated stairs as described in claim 2, characterized in that, The first button (61) and the second button (62) on the connecting buckle (6) located below the vertical plate (3) are located on the inner side of the connecting strip (63).

5. The reusable protective device for prefabricated stairs as described in claim 1, characterized in that, The surface of the transverse plate (4) is provided with anti-slip ripples (7).

6. The reusable protective device for prefabricated stairs as described in claim 1, characterized in that, The surfaces of the head step plate (2) and the tail step plate (5) are provided with anti-slip ripples (7). The head of the head step plate (2) is bent inward and fits against the back of the head of the prefabricated staircase (1). The tail of the tail step plate (5) is bent inward and fits against the front of the tail of the prefabricated staircase (1).

7. The reusable protective device for prefabricated stairs as described in claim 1, characterized in that, The head step plate (2), vertical plate (3), horizontal plate (4) and tail step plate (5) are all made of polyvinyl chloride plastic sheets.