Steel stair tread mounting structure
The combined structure of docking grooves, reinforced wing plates, positioning rings and inner elastic layers solves the problem of unstable connection between spiral steel staircase treads and columns, achieves stable connection between treads and columns and accuracy of docking multiple groups of columns, thus improving the overall stability and safety of the stairs.
Patent Information
- Application Number
- CN202422860006.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-22
AI Technical Summary
The existing spiral steel staircase's tread structure is prone to weld point breakage when connected to the column structure, and it is difficult to ensure the docking accuracy between multiple sets of column structures, posing a safety hazard and inconvenience in installation.
It adopts a combined structure of docking groove, reinforcement wing plate, positioning ring and inner elastic layer. The docking groove facilitates the connection between the pedal and the column, the positioning ring ensures the docking accuracy, the inner elastic layer provides buffering and stability, and the limiting protrusion cooperates with the limiting groove to enhance the connection stability.
It improves the connection stability between the pedals and the columns and the accuracy of the docking of multiple groups of columns, reduces the stress concentration on the welding points, and enhances the overall stability and safety of the stairs.
Smart Images
Figure CN223373997U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of stairs, and more particularly to a steel stair tread installation structure. Background Art
[0002] Stairs are an essential part of any building. Indoor stairs are usually constructed by first building a staircase with cement on the ground floor. The cement steps are then covered with materials such as wood or stone as treads to create an aesthetically pleasing appearance. With the development of lightweight steel construction, indoor stairs are often designed with steel structures for ease of assembly and durability. Straight-through steel stairs and spiral steel stairs are common indoor staircases. The latter, often called a spiral staircase or spiral staircase, are typically arranged around a single column. They are popular for their streamlined, elegant shape and space-saving design.
[0003] When this type of spiral steel staircase is actually assembled and used, the tread structure is often directly welded to the surface of the column structure when connected to the column structure. At the same time, when assembling this type of spiral steel staircase, in order to ensure a certain height of the stairs, it is necessary to weld multiple column structures together. The problems that exist in the actual installation process of this installation structure are:
[0004] First, when the tread structure is directly welded to the column structure, the overall force of the tread is concentrated at the welding point with the column structure bracket. The welding point is prone to breakage, affecting the load-bearing capacity of the tread, and then affecting the use of the entire staircase structure, and there are certain safety hazards.
[0005] Secondly, under the premise of ensuring the height of the stairs, it is difficult to ensure the docking accuracy between multiple sets of column structures, and inaccurate gaps may easily appear in the docking positions, which in turn affects the subsequent welding and fixation.
[0006] Therefore, the utility model proposes a steel stair tread installation structure. Utility Model Content
[0007] The utility model aims to solve the technical problems raised by the above-mentioned background technology and provides a steel stair tread installation structure.
[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a steel stair tread installation structure, comprising a fixedly connected column and a tread, a docking groove fixedly provided on the surface of the column, and a positioning ring fixedly sleeved on the top of the column, a reinforcing wing plate and a docking wing plate fixedly connected to the surface of the tread, an inner elastic layer embedded in the inner side of the positioning ring, a limiting protrusion fixedly connected to the surface of the inner elastic layer, and the limiting protrusion is embedded and connected to the inner side of the positioning ring.
[0009] A further preferred solution is that the docking groove is a one-third annular groove that penetrates and is opened on the top surface of the column.
[0010] A further preferred solution is that the pedal is arranged as a trapezoidal plate as a whole, and elliptical anti-slip protrusions are distributed on the surface of the pedal, and the docking wing plate extends outward and is located at one end of the pedal.
[0011] A further preferred solution is that the reinforcing wing plate is triangular in shape and is arranged to bend outward along both side edges of the pedal, and one end corner of the reinforcing wing plate protrudes outward.
[0012] A further preferred solution is that the positioning ring comprises an upper portion, a middle portion and a lower portion, and both the upper portion and the lower portion are arranged to be inclined inwards.
[0013] A further preferred solution is that the inner elastic layer is configured as a metal elastic layer, which is configured in a ring-shaped waveform as a whole, and the inner elastic layer is embedded in the middle position of the positioning ring.
[0014] A further preferred solution is that an inclined limiting groove is fixedly provided on the inner side of the middle portion, and a plurality of limiting grooves are provided at equal intervals along the inner side of the middle portion.
[0015] A further preferred solution is that the limiting protrusion is arranged in an inclined shape, is located on the outer surface of the inner elastic layer, close to the inner surface of the middle part, and is movably embedded in the limiting groove.
[0016] Beneficial effects:
[0017] 1. The docking groove makes it easier to connect and install the pedals and columns.
[0018] 2. By docking the wing plate, it is embedded in the column to strengthen the connection stability and force-bearing capacity between the pedal and the column. By reinforcing the wing plate, the pedal stability is enhanced. At the same time, one end corner of the reinforced wing plate protrudes outward. When the pedal and the column are installed, it can effectively fit the surface of the column, thereby further strengthening the stability of the pedal when it is subjected to force.
[0019] 3. The positioning ring is used to ensure the docking accuracy between multiple groups of columns during the assembly process, avoiding the docking point offset during the docking process of multiple groups of columns and thus affecting the subsequent welding operation.
[0020] 4. The inner elastic layer can enhance the docking accuracy of multiple sets of columns during installation. At the same time, it can provide a buffer for the docking positions of multiple sets of columns during the entire use of the stairs. The limiting protrusions and limiting grooves can facilitate the connection between the inner elastic layer and the positioning ring. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0022] Figure 2 This is an exploded view of the pedal structure and column connection of the utility model;
[0023] Figure 3 This is a schematic diagram of the connection of the positioning ring structure of the utility model;
[0024] Figure 4 This is a schematic diagram of the connection of the inner elastic layer of the present invention;
[0025] Figure 5 This is a top view of the inner elastic layer connection of the utility model;
[0026] Figure 6 For the utility model Figure 5 The structure at point A is magnified.
[0027] Figure 1-6 Center: 1. Column; 2. Pedal; 3. Reinforcement wing plate; 4. Docking wing plate; 5. Positioning ring; 6. Docking groove; 7. Upper part; 8. Middle part; 9. Lower part; 10. Inner elastic layer; 11. Limiting groove; 12. Limiting protrusion. DETAILED DESCRIPTION
[0028] The following is a combination of the appended examples of the present invention Figures 1-6 , clearly and completely describe the technical solutions in the embodiments of the present utility model.
[0029] See also Figure 1-6 In an embodiment of the present invention, a steel stair tread installation structure includes a fixedly connected column 1 and a tread 2, the surface of the column 1 is fixedly provided with a docking groove 6, and the top of the column 1 is fixedly sleeved with a positioning ring 5, the surface of the tread 2 is fixedly connected with a reinforcing wing plate 3 and a docking wing plate 4, and the inner side of the positioning ring 5 is embedded with an internal elastic layer 10, the surface of the internal elastic layer 10 is fixedly connected with a limiting protrusion 12, and the limiting protrusion 12 is also embedded and connected with the inner side of the positioning ring 5. When multiple groups of columns 1 are docked and installed, the internal elastic layer 10 can adaptively expand and contract according to the docking between the multiple groups of columns 1, thereby enhancing the docking accuracy. In addition, during the use of the entire staircase, when the docking position between the columns 1 is under stress, the internal elastic layer 10 can buffer the stress, thereby enhancing the stability of the docking position of the column 1. At the same time, when the internal elastic layer 10 is under stress, the limiting protrusion 12 can adaptively adjust in the limiting groove 11 according to the expansion and contraction of the internal elastic layer 10, thereby ensuring the connection between the internal elastic layer 10 and the positioning ring 5.
[0030] In the embodiment of the present invention, the docking groove 6 is a one-third annular groove extending through the top surface of the column 1 , so that the pedal 2 and the column 1 can be easily connected and installed.
[0031] When connecting the column 1 and the pedal 2, one end of the pedal 2 is embedded in the column 1 through the docking groove 6, which can effectively ensure the connection stability of the pedal 2 and the column 1, and at the same time enhance the force resistance of the connection position between the two during subsequent welding operations.
[0032] The pedal 2 is arranged as a whole in a trapezoidal plate body, and the surface of the pedal 2 is distributed with elliptical anti-slip protrusions, the docking wing plate 4 extends outward, and one end of the pedal 2 is embedded in one end of the column 1, and the reinforcing wing plate 3 is triangular and arranged along the two side edges of the pedal 2 with an outward angle, and one end corner of the reinforcing wing plate 3 protrudes outward close to one end of the column 1, and the docking wing plate 4 is embedded in the column 1, thereby strengthening the connection stability and force-bearing effect between the pedal 2 and the column 1, and the effect of enhancing the stability of the pedal 2 is achieved by reinforcing the wing plate 3. At the same time, one end corner of the reinforcing wing plate 3 protrudes outward, and when the pedal 2 and the column 1 are installed, it can effectively fit the surface of the column 1, thereby further strengthening the stability of the pedal 2 when it is subjected to force.
[0033] When the tread 2 and the column 1 are installed, the docking wing plate 4 is embedded in the column 1 through the docking groove 6 to support and strengthen the connection point between the tread 2 and the column 1. Combined with the subsequent welding operation on this point, the entire stair structure has good stability. At the same time, after the tread 2 and the column 1 are connected, the protruding end corner of the reinforcement wing plate 3 fits into the curved surface of the column 1, which can provide good support for the tread 2.
[0034] The positioning ring 5 includes an upper part 7, a middle part 8 and a lower part 9. The upper part 7 and the lower part 9 are both inclined inward. The positioning ring 5 is used to ensure the docking accuracy between multiple groups of columns 1 during the assembly process, thereby avoiding the docking point offset during the docking of multiple groups of columns 1 and affecting the subsequent welding operation.
[0035] When multiple groups of columns 1 are docked and installed, the upper portion 7 and the lower portion 9 of the positioning ring 5 can effectively ensure the docking accuracy between the multiple groups of columns 1, while the middle portion 8 facilitates the installation of the inner elastic layer 10.
[0036] The inner elastic layer 10 is set as a metal elastic layer, which is arranged in a ring-shaped waveform as a whole. The inner elastic layer 10 is also embedded in the middle part 8 of the positioning ring 5. An inclined limiting groove 11 is fixedly provided on the inner side of the middle part 8. Multiple groups of limiting grooves 11 are equidistantly provided along the inner side of the middle part 8. The limiting protrusions 12 are arranged in an inclined shape and are located on the outer surface of the inner elastic layer 10, close to the inner surface of the middle part 8, and are movably embedded in the limiting grooves 11. The inner elastic layer 10 is used to enhance the docking accuracy of multiple groups of columns 1 during docking installation. At the same time, during the use of the entire staircase, a buffer is provided for the docking positions of multiple groups of columns 1. The limiting protrusions 12 cooperate with the limiting grooves 11 to facilitate the connection between the inner elastic layer 10 and the positioning ring 5.
[0037] When multiple groups of columns 1 are docked and installed, the internal elastic layer 10 can adaptively expand and contract according to the docking between the multiple groups of columns 1, thereby enhancing the docking accuracy. Moreover, during the entire use of the staircase, when the docking positions between the columns 1 are under stress, the internal elastic layer 10 can buffer the stress and enhance the stability of the docking positions of the columns 1. At the same time, when the internal elastic layer 10 is under stress, the limiting protrusion 12 can adaptively adjust in the limiting groove 11 according to the expansion and contraction of the internal elastic layer 10, thereby ensuring the connection between the internal elastic layer 10 and the positioning ring 5.
[0038] During the assembly process of this device, after connecting the column 1 and the tread 2, the user can adjust the docking angle between each group of columns 1 in advance according to the specific installation requirements of the stairs. After determining the docking angle, welding is performed on the connection position between the column 1 and the tread 2. The welding between the tread 2 and the column 1 is divided into two parts, inner and outer, to ensure the connection stability between the tread 2 and the column 1. Afterwards, welding is performed between the multiple groups of columns 1 that have been docked to complete the assembly of the entire staircase.
Claims
1. A steel stair tread installation structure, characterized by: The utility model comprises a fixedly connected column (1) and a pedal (2); a docking groove (6) is fixedly provided on the surface of the column (1); a positioning ring (5) is fixedly sleeved on the top of the column (1); a reinforcing wing plate (3) and a docking wing plate (4) are fixedly connected on the surface of the pedal (2); an inner elastic layer (10) is embedded in the inner side of the positioning ring (5); a limiting protrusion (12) is fixedly connected to the surface of the inner elastic layer (10); and the limiting protrusion (12) is embedded in the inner side of the positioning ring (5).
2. A steel stair tread installation structure according to claim 1, characterized in that: The docking groove (6) is a one-third annular groove extending through the top surface of the column (1).
3. The steel stair tread installation structure according to claim 1, characterized in that: The pedal (2) is arranged as a trapezoidal plate as a whole, and elliptical anti-slip protrusions are distributed on the surface of the pedal (2). The docking wing plate (4) is arranged to extend outward and is located at one end of the pedal (2).
4. The steel stair tread installation structure according to claim 1, characterized in that: The reinforcing wing plate (3) is triangular in shape and is arranged along the two side edges of the pedal (2) with an outward folded angle, and one end corner of the reinforcing wing plate (3) protrudes outward.
5. The steel stair tread installation structure according to claim 1, characterized in that: The positioning ring (5) comprises an upper portion (7), a middle portion (8) and a lower portion (9), and both the upper portion (7) and the lower portion (9) are arranged to be inclined inwards.
6. The steel stair tread installation structure according to claim 1, characterized in that: The inner elastic layer (10) is configured as a metal elastic layer, and is configured in a ring-shaped waveform as a whole. The inner elastic layer (10) is also embedded in the middle portion (8) of the positioning ring (5).
7. The steel stair tread installation structure according to claim 5, characterized in that: The inner side of the middle part (8) is fixedly provided with an inclined limiting groove (11), and a plurality of limiting grooves (11) are provided at equal intervals along the inner side of the middle part (8).
8. The steel stair tread installation structure according to claim 1, characterized in that: The limiting protrusion (12) is arranged in an inclined shape, located on the outer surface of the inner elastic layer (10), close to the inner surface of the middle part (8), and is movably embedded in the limiting groove (11).