Cement foundation stair assembly type inclined surface glass handrail mounting groove
By prefabricating steel beams, inner aluminum plates, and outer aluminum plates in the factory and then fixing them to the concrete stairs with expansion bolts and other parts, the problems of safety hazards, high material costs, and complex construction associated with installing glass railings on concrete-foundation stairs are solved, achieving high-precision and rapid installation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG SHANGZHIDAO STAIRCASE IND CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-15
AI Technical Summary
In existing technologies, installing glass railings on cement-based staircases presents problems such as safety hazards, high material costs, complex procedures, long construction periods, and large errors.
Prefabricated steel beams, inner aluminum plates, and outer aluminum plates are processed in the factory and fixed to the cement stairs with expansion bolts and other parts, avoiding on-site welding. The installation dimensions are adjusted using level adjusters and connecting plates to achieve precise installation.
It improves installation safety, reduces material costs, simplifies procedures, shortens construction cycles, and enhances the precision and overall effect of the installation slot.
Smart Images

Figure CN224244287U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of staircase accessories, specifically a prefabricated inclined glass railing installation 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 on staircases are often installed using on-site welding of glass grooves, 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 inclined glass railing installation groove for cement-based staircases.
[0008] To solve the above problems, the technical solution of this utility model is: a prefabricated inclined glass railing installation groove for a cement-based staircase, including a cement staircase and a railing installation groove that can be detachably installed on the side of the cement staircase.
[0009] The railing mounting groove includes an inclined steel plate beam. An inner aluminum plate is detachably installed on the top of the steel plate beam, and an outer aluminum plate is detachably installed on the side away from the concrete staircase. A railing groove is formed between the inner and outer aluminum plates. Multiple inclined support bars are fixed to the outer side of the inner aluminum plate. A glass railing is installed above the support bars. An aluminum plate balance bar is fixed to the outer side of the steel plate beam below the support bars. Multiple level adjusters are provided between the inner side and the concrete staircase.
[0010] Furthermore, the lower part of the steel plate beam is installed on the side of the concrete staircase by multiple expansion bolts, and the upper part is installed on the front end of the concrete staircase tread by an L-shaped connecting plate.
[0011] Furthermore, both ends of the connecting plate are provided with elongated holes, and one end is installed on the steel plate beam by bolt one, while the other end is installed on the front end of the cement stair tread by expansion bolt two.
[0012] Furthermore, a positioning strip is fixed to the upper outer side of the steel plate beam, and an installation strip is fixed to the bottom of the inner aluminum plate. The installation strip has multiple installation holes, and the positioning strip has multiple threaded holes corresponding to the positions of the installation holes. Bolts are installed in the threaded holes, and the installation holes are located below the gap between two adjacent support strips.
[0013] Furthermore, the bottom of the inner aluminum plate has multiple operating holes, and the positions of the operating holes correspond to those of the mounting holes.
[0014] Furthermore, multiple sets of screws are fixed to the inner side of the outer aluminum plate, and through holes adapted to the screws are opened on the steel plate beam. A nut is installed at the end of the screw after passing through the through hole.
[0015] Furthermore, the leveling device includes a second screw, one end of which is fixed to a steel plate beam, and an adjusting column is threadedly connected to its outer side. The adjusting column is a hexagonal prism structure with a threaded hole at its center.
[0016] Furthermore, both the inner and outer aluminum plates are made of 6061 high-strength aluminum plates.
[0017] The advantages of this utility model compared with the existing technology are as follows: After the steel plate beam, inner aluminum plate and outer aluminum plate of this utility model are processed in the factory, they are installed on the cement stairs by expansion bolts and other parts. No welding, cutting or other 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
[0018] Figure 1 This is a perspective view of the present invention.
[0019] Figure 2 This is an installation structure diagram of the railing mounting groove of this utility model.
[0020] Figure 3 This is an installation structure diagram of the steel plate beam of this utility model.
[0021] Figure 4 This is a structural diagram showing the connection between the steel plate beam and the inner and outer aluminum plates of this utility model.
[0022] Figure 5 This is a structural diagram of the connection between the steel plate beam and the inner aluminum plate of this utility model.
[0023] Figure 6This is a structural diagram of the horizontal adjuster of this utility model.
[0024] As shown in the figure: 1. Cement staircase; 2. Steel plate beam; 3. Inner aluminum plate; 4. Outer aluminum plate; 5. Support strip; 6. Glass railing; 7. Aluminum plate balance strip; 8. Expansion bolt one; 9. Connecting plate; 10. Bolt one; 11. Expansion bolt two; 12. Positioning strip; 13. Installation strip; 14. Bolt two; 15. Screw one; 16. Screw two; 17. Adjusting column. 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 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.
[0026] like Figures 1 to 3 As shown, a prefabricated inclined glass railing installation groove for a cement-based staircase includes a cement staircase 1 and a railing installation groove that can be detachably installed on the side of the cement staircase. The railing installation groove includes an inclined steel plate beam 2, with an inner aluminum plate 3 detachably installed on the top of the steel plate beam 2 and an outer aluminum plate 4 detachably installed on the side away from the cement staircase 1; a railing groove is formed between the inner aluminum plate 3 and the outer aluminum plate 4, and multiple inclined support bars 5 are fixedly connected between the inner aluminum plate 3 and the outer aluminum plate 4, with a glass railing 6 installed above the support bars 5.
[0027] The railing installation channel uses steel plate beam 2, inner aluminum plate 3 and outer aluminum plate 4, all of which are processed in the factory. During construction and installation, the three are combined and installed on the side of the cement staircase 1. Both inner aluminum plate 3 and outer aluminum plate 4 are made of 6061 high-strength aluminum plate.
[0028] like Figure 1 , Figure 3 , Figure 4 and Figure 5As shown, the lower part of the steel plate beam 2 is installed on the side of the concrete staircase 1 by multiple expansion bolts 8, and the upper part is installed on the front end face of the concrete staircase 1 step by an L-shaped connecting plate 9. Both ends of the connecting plate 9 have elongated holes, and one end is installed on the steel plate beam 2 by bolt 10, while the other end is installed on the front end face of the concrete staircase 1 step by expansion bolt 21. A positioning strip 12 is fixedly connected to the upper outer side of the steel plate beam 2, and an installation strip 13 is fixedly connected to the bottom of the inner aluminum plate 3. The installation strip 13 has multiple installation holes, and the positioning strip 12 has multiple... A threaded hole corresponding to the mounting hole position, with bolt 14 installed in the threaded hole. The mounting hole is located below the gap between two adjacent support bars 5. Multiple operating holes are opened at the bottom of the inner aluminum plate 3, and the operating holes are corresponding to the mounting holes. Multiple sets of screw rods 15 are fixed to the inner side of the outer aluminum plate 4. Through holes adapted to screw rods 15 are opened on the steel plate beam 2. The end of screw rod 15 passes through the through hole and is fitted with a nut. An aluminum plate balance bar 7 is fixed to the outer side of the steel plate beam 2 below the support bar 5. The support bar 5, aluminum plate balance bar 7 and positioning bar 12 are parallel to each other.
[0029] The steel plate beam 2 is installed and fixed to the cement staircase 1 by expansion bolt 18, connecting plate 9, bolt 10 and expansion bolt 21; the mounting strip 13 at the bottom of the inner aluminum plate 3 is placed above the positioning strip 12 and fixed by bolt 214 to realize the connection between the steel plate beam 2 and the inner aluminum plate 3; the end of the screw 15 passes through the through hole and a nut is installed, which is matched with the positioning strip 12 and the aluminum plate balance strip 7 to realize the connection and fixation between the outer aluminum plate 4 and the steel plate beam 2.
[0030] like Figure 4 and Figure 6 As shown, multiple level adjusters are provided between the inner side of the steel plate beam 2 and the cement staircase 1. The level adjuster includes a screw rod 16. One end of the screw rod 16 is fixed to the steel plate beam 2, and an adjusting column 17 is threadedly connected to its outer side. The adjusting column 17 is a hexagonal prism structure with a threaded hole in the center.
[0031] Twisting the adjusting column 17 can adjust the distance between the steel plate beam 2 and the side of the cement staircase 1. Thus, when the side of the cement staircase 1 is uneven, the steel plate beam 2 can be adjusted to a vertical state by adjusting the level adjuster in conjunction with the connecting plate 9.
[0032] In practical use, during installation, expansion bolts and connecting plates 9 are used to first fix the steel plate beam 2 to the cement staircase 1. The installation dimensions and the verticality of the steel plate beam 2 can be adjusted using the level adjuster and the L-shaped connecting plates 9, which can accommodate any staircase with errors. After the steel plate beam 1 is installed, the high-strength inner aluminum plate 3 and outer aluminum plate 4 are installed and fixed on the steel plate beam 2, and then the glass railing 6 is installed. The technical requirements for installation workers are relatively low, and there is no need for welding, cutting or other operations on the construction site, which is safer. The installation groove is made with high dimensional accuracy, the process is simple, the construction cycle is short, and the amount of steel plate used is effectively reduced, thus reducing the cost of the glass railing.
[0033] After the railing mounting slots are installed, decorative panels can be installed on the surface of the cement staircase 1 for decoration.
[0034] The steel components used in this application, such as the steel plate beam 2, undergo thorough rust removal through shot blasting and electrostatic spraying during factory processing to achieve complete anti-corrosion treatment. The inner aluminum plate 3 and outer aluminum plate 4 are pre-fabricated with rust prevention and metallic paint spraying in the factory, and the colors can be customized according to the owner's preferences. This not only ensures high quality but also prevents rusting after installation on site. At the same time, it reduces the amount of steel used. The steel plate beam 1, inner aluminum plate 3, and outer aluminum plate 4 are produced in a standardized factory with high precision, resulting in excellent overall effect after installation.
[0035] 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.
[0036] 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.
[0037] 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.
[0038] 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 inclined glass railing mounting groove for a cement-based staircase, comprising a cement staircase (1) and a railing mounting groove detachably mounted on the side of the cement staircase, characterized in that: The railing mounting groove includes an inclined steel plate beam (2), an inner aluminum plate (3) is detachably installed on the top of the steel plate beam (2), and an outer aluminum plate (4) is detachably installed on the side away from the cement staircase (1). A railing groove is formed between the inner aluminum plate (3) and the outer aluminum plate (4), and multiple inclined support bars (5) are fixed to the outer side of the inner aluminum plate (3). A glass railing (6) is installed above the support bars (5), and an aluminum plate balance bar (7) is fixed to the outer side of the steel plate beam (2) below the support bars (5). Multiple level adjusters are provided between the inner side and the cement staircase (1).
2. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 1, characterized in that: The lower part of the steel plate beam (2) is installed on the side of the cement staircase (1) by multiple expansion bolts (8), and the upper part is installed on the front end of the cement staircase (1) step by an L-shaped connecting plate (9).
3. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 2, characterized in that: Both ends of the connecting plate (9) are provided with elongated holes, and one end is installed on the steel plate beam (2) by bolt one (10), and the other end is installed on the front end of the cement staircase (1) step by expansion bolt two (11).
4. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 1, characterized in that: A positioning strip (12) is fixed to the upper outer side of the steel plate beam (2), and an installation strip (13) is fixed to the bottom of the inner aluminum plate (3). The installation strip (13) has multiple installation holes, and the positioning strip (12) has multiple threaded holes corresponding to the positions of the installation holes. Bolts (14) are installed in the threaded holes, and the installation holes are located below the gap between two adjacent support strips (5).
5. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 4, characterized in that: The bottom of the inner aluminum plate (3) has multiple operating holes, and the operating holes are positioned corresponding to the mounting holes.
6. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 1, characterized in that: Multiple sets of screw rods (15) are fixed to the inner side of the outer aluminum plate (4). The steel plate beam (2) has through holes that are compatible with the screw rods (15). The end of the screw rod (15) passes through the through hole and is fitted with a nut.
7. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 1, characterized in that: The level adjuster includes a screw rod (16), one end of which is fixed to the steel plate beam (2), and an adjusting column (17) is threadedly connected to its outer side. The adjusting column (17) is a hexagonal prism structure with a threaded hole at the center.
8. The prefabricated inclined glass railing installation groove for a cement-foundation staircase according to claim 1, characterized in that: Both the inner aluminum plate (3) and the outer aluminum plate (4) are made of 6061 high-strength aluminum plate.