Cement foundation stair assembly type sawtooth-shaped finished glass groove

By using prefabricated steel beams and high-strength aluminum plates for assembly, the safety hazards and high costs associated with glass railings on cement-foundation staircases have been resolved, achieving an efficient and safe installation process and precise construction results.

CN224173626UActive Publication Date: 2026-04-28ZHEJIANG SHANGZHIDAO STAIRCASE IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG SHANGZHIDAO STAIRCASE IND CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing technologies, installing glass railings on cement-based staircases presents problems such as safety hazards, high material costs, large errors, complex procedures, and long construction periods.

Method used

The system uses a prefabricated, sawtooth-shaped glass trough with a cement foundation. Steel beams and high-strength aluminum plates are prefabricated in the factory and connected with expansion bolts and bolts, eliminating the need for on-site welding. Verticality is adjusted using a leveling device to achieve precise installation.

Benefits of technology

It improved construction safety, reduced material costs, simplified procedures, shortened the construction cycle, and improved installation accuracy and overall effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of stair accessories, and discloses a cement foundation stair assembly type sawtooth-shaped finished glass groove which comprises a cement stair and an installation groove, the installation groove comprises a steel plate girder, and a high-strength aluminum plate is detachably installed on the side, away from the cement stair, of the steel plate girder. The steel plate girder and the high-strength aluminum plate are both provided with step units matched with steps of the cement stair, a handrail groove is formed between the high-strength aluminum plate and the steel plate girder, an obliquely-arranged glass handrail supporting strip is arranged in the handrail groove, a glass handrail is installed above the glass handrail supporting strip, and an aluminum plate balance strip is arranged below the glass handrail supporting strip. And a plurality of horizontal regulators are arranged between the steel plate girder and the cement stairway. The steel plate girder and the high-strength aluminum plate are installed on a cement stair through expansion bolts and other parts after being machined in a factory, welding, cutting and other operations are not needed on a construction site, safety is higher, the manufactured installation groove is high in size precision, the working procedure is simple, the construction period is short, and the cost of the glass handrail is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of staircase accessories, specifically a prefabricated sawtooth-shaped glass groove for cement-based staircases. Background Technology

[0002] With the increasing popularity of minimalist interior design, installing glass railings on existing concrete staircases is becoming more common. Glass railings for staircases are often installed by welding glass grooves on-site, but this method has several drawbacks:

[0003] 1. In the existing technology, glass tanks require workers to weld pre-cut steel plates on site. When the workers do not operate in a standardized manner, there are serious safety hazards during the construction process, such as the open flame generated by on-site electric welding and the piled-up decoration materials on site, which can easily lead to fire.

[0004] 2. Existing glass troughs require steel plates on both sides, and the steel plates also need to cover the concrete foundation stair beams, so a lot of steel plates are used, resulting in higher costs.

[0005] 3. Due to the lack of standards in on-site production, the glass troughs produced often have large errors, which affects the overall effect in the later stages.

[0006] 4. On-site welding of glass tanks involves many trades, such as welding, grinding and polishing, and painting. The process is complex and the construction period is long, resulting in high completion costs. Utility Model Content

[0007] The technical problem to be solved by this utility model is to overcome the above-mentioned technical defects and provide a prefabricated sawtooth-shaped glass groove for cement-based staircases.

[0008] To solve the above problems, the technical solution of this utility model is as follows: a prefabricated sawtooth-shaped prefabricated glass groove for a cement-based staircase, comprising a cement staircase and a detachable mounting groove installed on the side of the cement staircase. The mounting groove includes a steel plate beam, on the side of the steel plate beam away from the cement staircase, a high-strength aluminum plate is detachably installed. Both the steel plate beam and the high-strength aluminum plate are provided with step units adapted to the steps of the cement staircase. A railing groove is formed between the high-strength aluminum plate and the steel plate beam, and an inclined glass railing support strip is provided in the railing groove. A glass railing is installed above the glass railing support strip, and an aluminum plate balance strip is provided below it. Multiple level adjusters are provided between the steel plate beam and the cement staircase.

[0009] Furthermore, the steel plate beam is installed on the side of the concrete staircase at the rear end of each step unit by expansion bolts, and on the front end of the concrete staircase step by an L-shaped connecting plate.

[0010] Furthermore, the connecting plate has a round hole at one end and an elongated hole at the other end. The steel plate beam has a threaded hole corresponding to the position of the round hole. A fixing bolt is installed in the threaded hole. The end of the connecting plate with the round hole is installed on the steel plate beam by the fixing bolt, and the end with the elongated hole is installed on the front end face of the cement stair tread by the expansion bolt.

[0011] Furthermore, the glass railing support strip and the aluminum plate balance strip have the same design, are parallel to each other, and are both fixed to the steel plate beam.

[0012] Furthermore, multiple sets of positioning screws are fixed to the inner side of the high-strength aluminum plate, and positioning holes adapted to the positioning screws are opened on the steel plate beam. The end of the positioning screw passes through the positioning hole and is fitted with a nut.

[0013] Furthermore, each set of positioning screws has two screws, arranged vertically, with the glass railing support strip located above the positioning screws and the aluminum plate balance strip located between the two positioning screws.

[0014] Furthermore, the leveling device includes a fully threaded screw, an adjusting column is threaded to the outer side of the fully threaded screw, the fully threaded screw is fixed to the steel plate beam, and the adjusting column has a hexagonal prism structure with a threaded hole at its center.

[0015] The advantages of this utility model compared with the existing technology are as follows: After the steel plate beam and high-strength aluminum plate of this utility model are processed in the factory, they are installed on the cement stairs by means of expansion bolts and other parts. No welding or cutting operations are required on the construction site, which is safer. In addition, the installation groove is made with high dimensional accuracy, the process is simple, the construction cycle is short, and the cost of glass railings is reduced. Attached Figure Description

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a structural diagram showing the connection between the cement staircase, steel plate beam, and high-strength aluminum plate of this utility model.

[0018] Figure 3 This is a structural diagram of the connection between the cement staircase and the steel plate beam of this utility model.

[0019] Figure 4 This is a diagram showing the connection structure between the steel plate beam and the high-strength aluminum plate of this utility model.

[0020] Figure 5 This is a connection structure diagram of the high-strength aluminum plate and the positioning screw of this utility model.

[0021] Figure 6 This is a structural diagram of the horizontal adjuster of this utility model.

[0022] As shown in the figure: 1. Cement staircase; 2. Steel plate beam; 3. High-strength aluminum plate; 4. Glass railing support strip; 5. Glass railing; 6. Aluminum plate balance strip; 7. Expansion bolt one; 8. Connecting plate; 9. Fixing bolt; 10. Expansion bolt two; 11. Positioning screw; 12. Fully threaded screw; 13. Adjusting column. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1 to 3 As shown, the prefabricated sawtooth-shaped glass channel for a cement-based staircase includes a cement staircase 1 and a mounting slot that can be detachably installed on the side of the cement staircase 1.

[0025] The mounting groove includes a steel plate beam 2. A high-strength aluminum plate 3 is detachably mounted on the side of the steel plate beam 2 away from the concrete staircase 1. Both the steel plate beam 2 and the high-strength aluminum plate 3 are provided with step units adapted to the steps of the concrete staircase 1. The steel plate beam 2 is mounted on the side of the concrete staircase 1 at the rear end of each step unit by expansion bolt 7, and on the front end of each step unit by an L-shaped connecting plate 8. One end of the connecting plate 8 has a round hole, and the other end has an elongated hole. The steel plate beam 2 has threaded holes corresponding to the positions of the round holes, and fixing bolts 9 are installed in the threaded holes. The end of the connecting plate 8 with the round hole is mounted on the steel plate beam 2 by fixing bolt 9, and the end with the elongated hole is mounted on the front end of the concrete staircase 1 step by expansion bolt 10.

[0026] The mounting groove is made of steel plate beam 2 and high-strength aluminum plate 3, which are processed in the factory. During installation, the two are combined and installed on the side of the cement staircase 1. The high-strength aluminum plate 3 is made of 6061 aluminum plate.

[0027] like Figures 2 to 5As shown, a railing groove is formed between the high-strength aluminum plate 3 and the steel plate beam 2, and an inclined glass railing support strip 4 is provided in the railing groove. A glass railing 5 is installed above the glass railing support strip 4, and an aluminum plate balance strip 6 is provided below it. The glass railing support strip 4 and the aluminum plate balance strip 6 have the same design and are parallel to each other, and are both fixed to the steel plate beam 2. Multiple sets of positioning screws 11 are fixed to the inner side of the high-strength aluminum plate 3. Positioning holes adapted to the positioning screws 11 are opened on the steel plate beam 2. The end of the positioning screw 11 passes through the positioning hole and is fitted with a nut. There are two positioning screws 11 in each set, and they are arranged vertically. The glass railing support strip 4 is located above the positioning screws 11, and the aluminum plate balance strip 6 is located between the two positioning screws 11.

[0028] A railing groove is formed between the high-strength aluminum plate 3 and the steel plate beam 2, which can also serve as a decoration for the glass railing. The connection and fixation between the high-strength aluminum plate 3 and the steel plate beam 2 can be achieved through the cooperation of the positioning screw 11, the aluminum plate balance strip 6 and the glass railing support strip 4.

[0029] like Figure 4 river Figure 6 As shown, multiple level adjusters are provided between the steel plate beam 2 and the cement staircase 1. Each level adjuster includes a fully threaded screw 12, and an adjusting column 13 is connected to the outer thread of the fully threaded screw 12. The fully threaded screw 12 is fixed to the steel plate beam 2, and the adjusting column 13 is a hexagonal prism structure with a threaded hole at its center.

[0030] Twisting the adjusting column 13 can adjust the distance between the steel plate beam 2 and the side of the cement staircase 1, so that when the side of the cement staircase 1 is uneven, the steel plate beam 2 can be easily adjusted to a vertical state by adjusting the level adjuster.

[0031] In practical use, during installation, the steel plate beam 2 is first fixed to the cement staircase 1 using expansion bolts. The installation dimensions and the verticality of the steel plate beam 2 can be adjusted using a level adjuster and an L-shaped connecting plate 8, which can accommodate any staircase with errors. After the steel plate beam 1 is installed, the high-strength aluminum plate 3 is directly fixed to the steel plate beam 2, and then the glass railing 5 is installed. The technical requirements for installation workers are relatively low, and no welding or cutting operations are required on the construction site, making it safer. The installation groove is dimensionally accurate, the process is simple, the construction cycle is short, and the amount of steel plate used is effectively reduced, thus lowering the cost of the glass railing.

[0032] After the mounting slot is installed, decorative panels can be installed on the surface of the cement staircase 1 for decoration.

[0033] The steel components used in this application undergo shot blasting for thorough rust removal and electrostatic spraying for complete anti-corrosion treatment during factory processing. The high-strength aluminum plate 3 is pre-fabricated with rust prevention and metallic paint spraying in the factory, and the color can be customized according to the owner's preferences. It is not only of high quality, but also does not rust after installation on site. At the same time, it reduces the amount of steel used. The steel plate beam 1 and the high-strength aluminum plate 3 are produced in the factory according to standardized standards, with high precision, and the overall effect is excellent after the whole installation is completed.

[0034] The parts not disclosed in this utility model are all prior art, and their specific structures and working principles will not be described in detail.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

[0037] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A prefabricated sawtooth-shaped glass groove for a cement-based staircase, comprising a cement staircase (1) and a mounting groove detachably installed on the side of the cement staircase (1), characterized in that: The mounting groove includes a steel plate beam (2), and a high-strength aluminum plate (3) is detachably installed on the side of the steel plate beam (2) away from the cement staircase (1). Both the steel plate beam (2) and the high-strength aluminum plate (3) are provided with step units that are compatible with the steps of the cement staircase (1). A railing groove is formed between the high-strength aluminum plate (3) and the steel plate beam (2), and an inclined glass railing support strip (4) is provided in the railing groove. A glass railing (5) is installed above the glass railing support strip (4), and an aluminum plate balance strip (6) is provided below it. Multiple level adjusters are provided between the steel plate beam (2) and the cement staircase (1).

2. The prefabricated sawtooth-shaped glass trough for cement-foundation staircases according to claim 1, characterized in that: The steel plate beam (2) is installed on the side of the cement staircase (1) at the rear end of each step unit by expansion bolts (7), and at the front end of each step unit by L-shaped connecting plates (8) on the front face of the cement staircase (1) steps.

3. The prefabricated sawtooth-shaped glass trough for cement-foundation staircases according to claim 2, characterized in that: The connecting plate (8) has a round hole at one end and an elongated hole at the other end. The steel plate beam (2) has a threaded hole corresponding to the position of the round hole. A fixing bolt (9) is installed in the threaded hole. The end of the connecting plate (8) with the round hole is installed on the steel plate beam (2) by the fixing bolt (9), and the end with the elongated hole is installed on the front end face of the cement staircase (1) step by the expansion bolt (10).

4. The prefabricated sawtooth-shaped glass trough for cement-foundation staircases according to claim 1, characterized in that: The glass railing support strip (4) and the aluminum plate balance strip (6) are designed the same, are parallel to each other, and are both fixed to the steel plate beam (2).

5. The prefabricated sawtooth-shaped glass trough for cement-foundation staircases according to claim 1, characterized in that: Multiple sets of positioning screws (11) are fixed to the inner side of the high-strength aluminum plate (3). The steel plate beam (2) is provided with positioning holes that are compatible with the positioning screws (11). The end of the positioning screw (11) passes through the positioning hole and is fitted with a nut.

6. The prefabricated sawtooth-shaped glass trough for cement-foundation staircases according to claim 5, characterized in that: Each set of positioning screws (11) has two screws, which are arranged vertically. The glass railing support strip (4) is located above the positioning screws (11), and the aluminum plate balance strip (6) is located between the two positioning screws (11).

7. The prefabricated sawtooth-shaped glass trough for cement-foundation staircases according to claim 1, characterized in that: The leveling device includes a fully threaded screw (12), and an adjusting column (13) is threadedly connected to the outer side of the fully threaded screw (12). The fully threaded screw (12) is fixed to the steel plate beam (2), and the adjusting column (13) is a hexagonal prism structure with a threaded hole at its center.