Slidable anti-falling steel structure stair
By designing a slidable and anti-falling steel staircase, combined with a combination of sliding plates, steel stair beams, stepping plates, guardrails, handrails, shaking reduction mechanisms and protective mechanisms, the problems of structural damage and user falls during earthquakes are solved, and a safer emergency evacuation is achieved.
Patent Information
- Application Number
- CN202421675538.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-07-16
AI Technical Summary
Traditional rigid stairs are prone to structural damage and functional failure under wind and earthquake loads, and sliding stairs may cause users to fall and fall during earthquakes.
A slidable and anti-falling steel staircase is designed, and a combined structure of sliding plates, steel plate ladder beams, stepping plates, guardrails, handrails, shaking reduction mechanisms and protective mechanisms are used to reduce shaking through the sliding plates and steel plate ladder beams, and additional support and protection are provided through the protective mechanism.
It effectively reduces the swaying amplitude of the stairs during earthquakes, reduces the probability of users falling and falling, and ensures safety during emergency evacuation.
Smart Images
Figure CN223003643U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel structure stairs, in particular to a steel structure stair that can slide and prevent falling. Background Technique
[0002] Most traditional stairs are designed with fixed supports at both ends and belong to rigid stairs. However, this type of rigid stair has great limitations. For example, under large wind loads and seismic loads, the lateral displacements of different main structures will vary greatly, and the stairs will bear large tensile, compressive or torsional deformations, which may lead to structural damage and functional failure of traditional rigid stairs and it is difficult to ensure their normal use functions.
[0003] During natural disasters such as earthquakes, sliding stairs absorb seismic energy through the sliding deformation of the sliding plate and the stairs. However, during the sliding deformation of the sliding plate and the stairs, the stairs may shake violently due to sliding, and when users escape on the stairs, they may fall.
[0004] Therefore, the utility model provides a steel structure stair that can slide and prevent falling to solve the above problems. Content of the Utility Model
[0005] The utility model provides a steel structure stair that can slide and prevent falling, aiming to solve the problems put forward in the background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A steel structure stair that can slide and prevent falling, the steel structure stair includes a sliding plate, steel plate ladder beams arranged on both sides of the sliding plate, tread plates arranged inside the steel plate ladder beams, a plurality of guardrails arranged on the inner grooves of the steel plate ladder beams, handrails arranged on the plurality of guardrails, a shock reduction mechanism arranged on one side of the sliding plate, and a protection mechanism arranged on the guardrails. The steel plate ladder beams are slidably connected to the sliding plate;
[0007] The shock reduction mechanism includes a gasket arranged on one side of the sliding plate, a tension spring arranged on one side of the gasket, a connecting ring movably installed on the tension spring, a connecting column arranged on the connecting ring, and a hinge block rotatably installed on the connecting column.
[0008] Furthermore, in the above-mentioned steel structure stair that can slide and prevent falling, the protection mechanism includes a slider slidably installed inside the handrail protection groove, a protection rod rotatably installed on the slider, and a plurality of convex blocks arranged on the handrail protection groove are linearly arrayed on the steel plate ladder beam, the convex blocks are linearly arrayed on the handrail, and the top of the hinge block is arranged at the bottom of the tread plate.
[0009] Further, in the above-mentioned steel structure staircase with sliding anti-falling function, a sliding groove is formed inside the sliding plate, and a connecting rod is arranged on the opposite side of the two steel plate ladder beams, and the side surface of the connecting rod is slidably installed inside the sliding groove.
[0010] Further, in the above-mentioned steel structure staircase with sliding anti-falling function, a fixing plate is arranged on the top of the steel plate ladder beam, and fixing legs are connected to the bottom of the fixing plate, and a plurality of fixing legs are provided.
[0011] Further, in the above-mentioned steel structure staircase with sliding anti-falling function, a fixing rod is connected between every two fixing legs.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] The structure of the present utility model is simple and convenient to use. When the tread plate slides, under the action of the connecting column and the tension spring, part of the shaking is reduced. Then, through the guardrail and the convex blocks, when the user escapes, the staircase can be supported and protected by the guardrail, reducing the probability of the user falling down during the escape process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 FIG. is a perspective structural view of a steel structure staircase with sliding anti-falling function;
[0015] Figure 2 FIG. is a bottom perspective structural view of a steel structure staircase with sliding anti-falling function;
[0016] Figure 3 is Figure 2 the enlarged view at A in
[0017] Figure 4 FIG. is an installation view of the connecting rod in a steel structure staircase with sliding anti-falling function.
[0018] In the figure:
[0019] 1, sliding plate; 2, gasket; 3, tension spring; 4, connecting ring; 5, connecting column; 6, hinge block; 7, handrail; 8, slider; 9, guardrail; 10, convex block; 11, steel plate ladder beam; 12, guardrail; 13, tread plate; 14, sliding groove; 15, connecting rod; 16, fixing plate; 17, fixing leg; 18, fixing rod. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] The utility model provides a slidable anti-fall steel structure staircase, such as Figure 1 , Figure 2 and Figure 4 As shown, the steel structure staircase comprises a sliding plate 1, a steel plate ladder beam 11 arranged on both sides of the sliding plate 1, a step plate 13 arranged inside the steel plate ladder beam 11, a plurality of guardrails 12 arranged on the inner grooves of the steel plate ladder beam 11, a handrail 7 arranged on the plurality of guardrails 12, a sway reduction mechanism arranged on one side of the sliding plate 1 and a protection mechanism arranged on the guardrail 12, and the steel plate ladder beam 11 is slidably connected to the sliding plate 1;
[0022] The anti-sway mechanism includes a gasket 2 arranged on one side of the sliding plate 1, a tension spring 3 arranged on one side of the gasket 2, a connecting ring 4 movably mounted on the tension spring 3, a connecting column 5 arranged on the connecting ring 4, and a hinge block 6 rotatably mounted on the connecting column 5.
[0023] In the actual application of steel structure stairs, the sliding plate 1 is first placed in a predetermined position. When a natural disaster such as an earthquake occurs, these key components pre-slidably installed on the sliding plate 1, together with the treads 13 fastened inside the steel ladder beam 11, will change dynamically according to the earthquake waves. This process effectively disperses and reduces the force of the treads 13 and the steel ladder beam 11 directly impacting the sliding plate 1, thereby significantly reducing the potential risk of damage to the sliding plate 1 and the entire staircase structure. Furthermore, with the natural shaking of the steel structure stairs during an earthquake, the treads 13 will slide backwards, and this action will synchronously move the hinge block 6 backwards. The hinge block 6 acts as a connecting rod. The connecting bridge will be directly transmitted to the connecting column 5, thereby driving the connecting ring 4 to move backward along a predetermined trajectory. Since the connecting ring 4 is movably connected to the tension spring 3, the tension spring 3 can be stretched as the connecting ring 4 moves backward. When the tension spring 3 reaches a certain degree of stretching, its inherent elastic properties begin to play a role, applying a pulling force opposite to the direction of movement to the connecting ring 4. This reverse pulling force not only effectively slows down the sliding speed of the steel structure stairs relative to the sliding plate 1, but also provides a more stable support for the user's movement on the stairs, greatly reducing the shaking amplitude felt by the user on the stairs during an earthquake, ensuring the safety during emergency evacuation.
[0024] For example, in order to make it safer for users to go downstairs after an earthquake, Figure 1 , Figure 2and Figure 3 As shown in the figure, the protection mechanism includes a slider 8 slidably installed inside the protection groove of the armrest 7, a protection rod 9 rotatably installed on the slider 8, and a plurality of bumps 10 provided on the protection groove of the armrest 7.
[0025] When natural disasters such as earthquakes occur suddenly, when the user is going downstairs, there will be a sense of shaking and they may fall to the ground. At this time, by manually pushing the protection rod 9 inward, the user tightly holds the protection rod 9 with both hands and moves downward together with the protection rod 9. During the process of the protection rod 9 descending, the slider 8 is decelerated through the action of the bump 10 to prevent the protection rod 9 from descending too fast without friction while the user is still behind, resulting in the user falling. Under normal circumstances without natural disasters such as earthquakes, for some elderly people and those with limited mobility, it is difficult to go up and down the stairs. When going up the stairs, the user manually pushes the protection rod 9 inward, tightly holds the protection rod 9 with both hands, and pushes the protection rod 9 upward along the armrest 7. After pushing a certain distance, the protection rod 9 is temporarily blocked by the bump 10 to prevent the protection rod 9 from sliding backward. At this time, the user climbs the stairs with the support of the protection rod 9. After walking one more flight of stairs, repeat the action until reaching the top floor. When going downstairs, similarly, manually push the protection rod 9 inward, tightly hold the protection rod 9 with both hands, and push the protection rod 9 downward along the direction of the armrest 7. After pushing a certain distance, the protection rod 9 is temporarily blocked by the bump 10 to prevent the protection rod 9 from sliding, and the user then walks downstairs until reaching the bottom.
[0026] Exemplarily, in order to facilitate the sliding of the stairs during an earthquake, as Figure 1 , Figure 2 and Figure 4 shown, the guardrails 12 are linearly arrayed on the steel plate ladder beam 11, the bumps 10 are linearly arrayed on the armrest 7, and the top of the hinge block 6 is arranged at the bottom of the tread plate 13.
[0027] A sliding groove 14 is formed inside the sliding plate 1, and a connecting rod 15 is provided on one side of the two steel plate ladder beams 11 opposite to each other. The side surface of the connecting rod 15 is slidably installed inside the sliding groove 14.
[0028] When natural disasters such as earthquakes occur suddenly, the steel plate ladder beam 11 and the tread plate 13 move. The movement of the steel plate ladder beam 11 drives the connecting rod 15 arranged between the two steel plate ladder beams 11 to move. The connecting rod 15 can only move inside the sliding groove 14 formed inside the sliding plate 1, and at the same time, the movement amplitude of the steel plate ladder beam 11 and the tread plate 13 is avoided from being too large.
[0029] It should be noted that, for Figure 1 and Figure 2As shown, a fixing plate 16 is provided at the top of the steel plate ladder beam 11, and a fixing leg 17 is connected to the bottom of the fixing plate 16. A plurality of fixing legs 17 are provided.
[0030] A fixing rod 18 is provided on one side of every two fixing legs 17, and a fixing rod 18 is connected between every two fixing legs 17.
[0031] In practical applications of this steel structure staircase, the fixing legs 17 are firmly anchored to the predetermined ground, ensuring a solid foundation for the overall structure. Between every two adjacent fixing legs 17, the installed fixing rods 18 effectively enhance the connection strength between the legs, thereby greatly reducing the shaking phenomenon that may be caused by external forces, and ensuring the stability and safety of the staircase during use.
[0032] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.
Claims
1. A slidable anti-fall steel structure staircase, characterized by: It comprises a sliding plate (1), a steel plate ladder beam (11) arranged on both sides of the sliding plate (1), a step plate (13) arranged inside the steel plate ladder beam (11), a plurality of guardrails (12) arranged on the inner groove of the steel plate ladder beam (11), a handrail (7) arranged on the plurality of guardrails (12), a sway reduction mechanism arranged on one side of the sliding plate (1) and a protection mechanism arranged on the guardrail (12), wherein the steel plate ladder beam (11) is slidably connected to the sliding plate (1); The sway reduction mechanism comprises a gasket (2) arranged on one side of the sliding plate (1), a tension spring (3) arranged on one side of the gasket (2), a connecting ring (4) movably mounted on the tension spring (3), a connecting column (5) arranged on the connecting ring (4), and a hinge block (6) rotatably mounted on the connecting column (5).
2. A slidable anti-fall steel structure staircase according to claim 1, characterized in that: The protection mechanism comprises a slider (8) slidably mounted inside the protection groove of the handrail (7), a protection rod (9) rotatably mounted on the slider (8), and a plurality of protrusions (10) arranged on the protection groove of the handrail (7).
3. The slidable anti-fall steel structure staircase according to claim 2, characterized in that: The guardrail (12) is distributed in a linear array on the steel plate ladder beam (11), the protrusions (10) are distributed in a linear array on the handrail (7), and the top of the hinge block (6) is arranged at the bottom of the step board (13).
4. The slidable anti-fall steel structure staircase according to claim 3, characterized in that: A sliding groove (14) is provided inside the sliding plate (1), and a connecting rod (15) is provided on the opposite side of the two steel plate ladder beams (11), and the side surface of the connecting rod (15) is slidably installed inside the sliding groove (14).
5. The slidable anti-fall steel structure staircase according to claim 4, characterized in that: A fixing plate (16) is arranged on the top of the steel plate ladder beam (11), and a fixing leg (17) is connected to the bottom of the fixing plate (16), and a plurality of fixing legs (17) are arranged.
6. The slidable anti-fall steel structure staircase according to claim 5, characterized in that: A fixing rod (18) is connected between every two fixing legs (17).