Recyclable stair
By using scrap steel bars and pipes to make recyclable stairs, the problems of high steel bar loss rate and difficulty in disassembling traditional stairs are solved, realizing the reuse of resources and cost reduction, and improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-18
- Publication Date
- 2026-03-31
AI Technical Summary
The high rate of steel bar loss during building construction, the long processing cycle of traditional staircases, the difficulty in disassembling them after welding, the low reuse rate, the serious waste of resources, and the high construction cost.
The staircase is made from scrap steel bars and pipes from the construction site. It is easy to install and disassemble using gear components and scaffolding fasteners. The tread panels are replaceable. A fall protection net is installed between the first and second stair beams. Threaded steel bars are used to prevent slipping, and toe bars are used to prevent falls.
It enables the reuse of resources, reduces manufacturing and maintenance costs, improves construction efficiency, enhances the stability and safety of the staircase, and has strong applicability.
Smart Images
Figure CN224063896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building construction technology, specifically to a reusable staircase. Background Technology
[0002] Currently, there are widespread problems in construction projects, such as extensive material management and low resource utilization. During construction, due to reasons such as material cutting deviation and waste of short materials, the steel bar loss rate is very high. A large amount of usable steel bars or steel pipes are directly treated as waste, which not only wastes resources but also increases the pressure of construction waste disposal and the risk of environmental pollution.
[0003] Meanwhile, temporary scaffolding staircases widely used on construction sites are mostly made of welded steel pipes or plates, but they have the following problems: traditional staircase processing requires on-site cutting and welding, resulting in long production cycles and high labor costs. Furthermore, welded staircases are difficult to disassemble and reuse after completion, have low reuse rates, and repair costs are high and replacement is difficult after the tread panels deform. Therefore, we have developed a reusable staircase. Utility Model Content
[0004] To solve the above-mentioned technical problems, this utility model provides a recyclable staircase. The staircase is made from scrap steel bars and steel bar processing materials from the construction site. It is easy to install and disassemble, can be reused, and has low cost.
[0005] A reusable staircase includes a first stair beam and a second stair beam arranged in parallel. Multiple sets of step panels are installed at intervals between the first stair beam and the second stair beam. A first support member and a second support member are fixedly connected to both sides of the step panels. The first support member is installed on the first stair beam by scaffolding fasteners, and the second support member is installed on the second stair beam by gear assembly.
[0006] A further technical solution is: the gear assembly includes a support base welded and fixed to the upper surface of the second ladder beam, the support base is provided with an installation groove, the installation groove has a through opening on one side of the step panel, a gear ring is fixedly installed inside the installation groove, and a gear is fixedly installed at the outer end of the second support member, the gear extends into the installation groove and is fully engaged with the gear ring.
[0007] A further technical solution is: the step panel is made of multiple long-side connecting rods and short-side connecting rods arranged longitudinally and welded together, and the long-side connecting rods and short-side connecting rods are made of threaded steel bars.
[0008] A further technical solution is: short foot-stopping rods are vertically fixed to both ends of the long side connecting rod on the front side of the step panel, and a long foot-stopping rod is fixedly connected between the tops of the two short foot-stopping rods.
[0009] A further technical solution is that both the first and second support components are made of steel pipes, and the end of the steel pipe connected to the step panel is flat.
[0010] A further technical solution is as follows: a fall protection net is fixedly installed between the first and second ladder beams, and the fall protection net is located below multiple sets of step components.
[0011] The beneficial effects of this utility model are:
[0012] The staircase of this application has multiple tread panels installed at intervals between the first and second stair beams. One side of each tread panel is mounted to the second stair beam via a gear assembly, and the other side is mounted to the first stair beam via scaffolding fasteners. The scaffolding fasteners and gear assembly facilitate the installation and removal of the tread panels. When a single tread panel is deformed or damaged, it can be directly replaced, saving labor and time. When workers carry heavy materials up the stairs, causing excessive local stress, the rigid structure of the gear assembly allows the gear teeth on the tread panel to engage with the tooth grooves of the gear ring on the second stair beam, resulting in a more stable connection, reducing the risk of slippage, and preventing the tread panels from collapsing. Furthermore, the angle of the tread panels can be freely adjusted according to the slope of the staircase to maintain a horizontal position, allowing the staircase of this application to be installed between different height levels within scaffolding, making it highly adaptable.
[0013] The first and second stair beams and step panels are made from scrap steel pipes and threaded steel bars, achieving resource reuse, low cost, and simple manufacturing, thus saving resources and reducing raw material costs. Furthermore, the longitudinal and transverse ribs on the surface of the threaded steel bars in the step panels provide anti-slip properties, and the short and long toe rails on the front of the step panels prevent feet from slipping off the edge of the steps, reducing the risk of falls and ensuring pedestrian safety. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall design of this utility model.
[0015] Figure 2 This is a top view of the present invention.
[0016] Figure 3 This is a side view of the present invention.
[0017] Figure 4 This is a schematic diagram of the step panel of this utility model.
[0018] Figure 5 This is a side view of the mounting groove of this utility model.
[0019] In the picture:
[0020] 1. Step panel; 11. Long side connecting rod; 12. Short side connecting rod; 2. First support component; 3. Second support component; 4. Scaffolding fastener; 5. Gear assembly; 51. Gear; 52. Support base; 53. Gear ring; 6. First ladder beam; 7. Second ladder beam; 8. Fall protection net; 9. Long toe stop bar; 10. Short toe stop bar. Detailed Implementation
[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.
[0022] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] A reusable staircase, such as Figure 1-5 As shown, it includes two parallel first ladder beams 6 and second ladder beams 7. Multiple sets of step panels 1 are installed between the first ladder beams 6 and second ladder beams 7 at intervals. First support members 2 and second support members 3 are fixedly connected to both sides of the step panels 1. The first support members 2 are installed on the first ladder beams 6 through scaffolding fasteners 4, and the second support members 3 are installed on the second ladder beams 7 through gear assemblies 5.
[0025] Multiple gear assemblies 5 are welded and fixed to the upper surface of the second ladder beam 7 according to a standard pitch. Each gear assembly 5 includes a support base 52 welded and fixed to the upper surface of the second ladder beam 7. The support base 52 has an internal mounting groove with a through opening on one side of the mounting groove opposite to the step panel 1. A gear ring 53 is fixedly mounted inside the mounting groove, and a gear 51 is fixedly mounted on the outer end of the second support member 3. The gear 51 extends into the mounting groove through the opening and fully engages with the gear ring 53, such that the tooth tip of the gear 51 engages with the tooth groove of the gear ring 53. In a more preferred embodiment, the side of the mounting groove opposite to the step panel 1 is closed, facilitating the installation and fixing of the gear 51.
[0026] Specifically, the tooth surface of gear 51 is strengthened by heat treatment such as quenching and carburizing, resulting in good wear resistance and long service life. The dimensions of gear 51 are designed according to needs, making it adaptable to the adjustment angle and suitable for various scenarios.
[0027] The step panel 1 is composed of multiple long-side connecting rods 11 and short-side connecting rods 12 arranged longitudinally and welded together. Both the long-side connecting rods 11 and short-side connecting rods 12 are made from scrap threaded steel bars collected during construction. The longitudinal and transverse ribs of the threaded steel bars increase surface friction, providing an anti-slip effect. Furthermore, the threaded steel bars have high mechanical strength, making them sturdy and durable. Specifically, based on the step width and step distance of the scaffolding erected on site, four long-side threaded steel bars and two short-side threaded steel bars are selected, processed to appropriate lengths, and then welded together for fixation.
[0028] Short toe-stop bars 10 are vertically fixed to both ends of the long side connecting rod 11 on the front side of the step panel 1, and a long toe-stop bar 9 is fixedly connected between the tops of the two short toe-stop bars 10. The short toe-stop bars 10 and the long toe-stop bar 9 together form a toe board, which further provides protection, especially when people are walking hurriedly on the construction site. The toe board can physically block their feet from slipping off the edge of the step, reducing the risk of falling and ensuring passage safety. Specifically, both the short toe-stop bars 10 and the long toe-stop bar 9 can be made from scrap threaded steel bars obtained during the construction process.
[0029] Both the first support component 2 and the second support component 3 are made of steel pipe. The end of the steel pipe connected to the step panel 1 is flattened using a bench vise. Specifically, the first support component 2 and the second support component 3 are made of Φ50mm steel pipe with a length of 200mm. The flattened shape of one end of the steel pipe facilitates a smooth weld with the step panel 1, while the cylindrical shape of the other end facilitates a smooth weld with the scaffolding coupler 4 or gear assembly 5. This makes welding at both ends of the steel pipe simpler and stronger, ensuring that the first support component 2 and the second support component 3 can provide stable support and connection.
[0030] After the staircase is installed, apply anti-corrosion paint to the entire surface. The bright color enhances its warning effect and reduces corrosion of the threaded steel bars and steel pipes caused by high moisture and salt content in the air, thus extending the service life of the staircase.
[0031] The first and second ladder beams 6 and 7 can be made of Φ50mm steel pipes with a length suitable for actual on-site construction. A fall protection net 8 is fixedly installed between the first and second ladder beams 6 and 7, positioned below multiple sets of step components. The fall protection net 8 is made of nylon, is high-strength, durable, and easy to maintain, preventing tools from falling and causing safety accidents or property damage, enhancing personnel protection, and reducing the occurrence of accidents.
[0032] This utility model has a simple structure, is easy to manufacture and use, utilizes waste building materials, is detachable and reusable, is convenient to transport, and is sturdy and not easily deformed. Individual step panels 1 are easily replaced after damage, which helps improve construction efficiency and reduce construction costs. Furthermore, it solves the problem of temporary access between different heights on scaffolding. Different slopes of stairs can be set according to different height layers on the scaffolding, the angle of the step panels 1 can be freely adjusted, and they can be disassembled and reused.
[0033] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A recyclable staircase, characterized by, The first ladder beam and the second ladder beam are arranged in parallel, and a plurality of groups of step panels are arranged between the first ladder beam and the second ladder beam.
2. A recyclable staircase according to claim 1, characterized in that, The gear assembly comprises a support seat welded to the upper surface of the second ladder beam, the support seat is internally provided with a mounting groove, the mounting groove is provided with a through opening on one side relative to the step panel, the mounting groove is internally fixedly provided with a gear ring, and the outer end of the second support member is fixedly provided with a gear, the gear extends into the mounting groove and is completely embedded with the gear ring.
3. A recyclable staircase according to claim 1, wherein, The step panel is formed by a plurality of long-side connecting rods and short-side connecting rods arranged in a cross shape and welded together, and the long-side connecting rods and the short-side connecting rods are made of threaded steel bars.
4. A recyclable staircase according to claim 3, wherein, Two foot-blocking short rods are vertically fixed on the two ends of the long-side connecting rod on the front side of the step panel, and a foot-blocking long rod is fixedly connected between the top portions of the two foot-blocking short rods.
5. The recyclable stair of claim 1, wherein, The first support member and the second support member are both made of steel pipes, and one end of the steel pipe connected with the step panel is flat.
6. A recyclable staircase according to claim 1, wherein, A fall-preventing net is fixedly arranged between the first ladder beam and the second ladder beam and below the plurality of groups of step assemblies.