Two-way edge protection device for assembled scissor stair

Abstract

The utility model discloses a kind of assembled scissor stair two-way edge protection device, more specifically related to building construction technology field, including the side frame being set on first stair and second stair, protection assembly and limiting mechanism are installed on side frame;Protection assembly includes multiple fixed blocks, fixed block is fixedly connected with one side of side frame, rotating drum is arranged between two fixed blocks, and threaded rod is fixedly connected on both sides of rotating drum.The utility model can simplify the installation process of protective rail by setting protection assembly and limiting mechanism, greatly shorten installation time, and can limit protective rail, can prevent protective rail from deforming or overturning, to enhance the stability of structure, while first hinged frame and second hinged frame can be quickly unfolded to preset angle, to facilitate with multiple protective rail quick connection, to improve installation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, and more specifically, to a prefabricated scissor staircase bidirectional edge protection device. Background Technology

[0002] Scissor stairs, also known as stacked stairs or nested stairs, are special fire-fighting staircases composed of two double-run straight staircases intersecting side by side. They form a scissor-shaped cross layout through two sets of opposing inclined straight stair sections, providing two independent evacuation routes within the same stairwell, belonging to different fire compartments. They combine the advantages of saving space and improving evacuation efficiency.

[0003] In practical use, during the construction of scissor stairs, it is usually necessary to install guardrails on both stairs separately. The process of installing guardrails on stairs is relatively complicated, which leads to a long installation time. The cumbersome operation process is prone to installation deviations, resulting in uneven protection effects. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a prefabricated scissor staircase bidirectional edge protection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A prefabricated scissor staircase bidirectional edge protection device includes side frames installed on the first and second staircases, and protective components and limiting mechanisms are installed on the side frames; The protective assembly includes multiple fixing blocks, each fixedly connected to one side of the side frame. A rotating cylinder is positioned between two fixing blocks, with threaded rods fixedly connected to both sides of the rotating cylinder. The threaded rods are rotatably connected to the inside of the fixing blocks, and a threaded cylinder is threadedly connected to the outside of the threaded rods. The threaded cylinder is slidably connected to the inside of the fixing blocks, and a protective railing is inserted into the outside of the threaded cylinder. The protective railing is inserted into the top of the side frame. A support shaft is positioned on one side of the side frame, with a first hinge frame fixedly connected to the outside of the support shaft. A second hinge frame is rotatably connected to the outside of the support shaft. Multiple limiting cylinders are fixedly connected to the bottom ends of both the first and second hinge frames. The inside of each limiting cylinder is inserted into the outside of the protective railing, and an insertion hole is provided on one side of each limiting cylinder. A connecting plate is positioned on one side of both the first and second hinge frames, with multiple insert rods fixedly connected to one side of each connecting plate. The insert rods pass through the insertion holes and are inserted into the outside of the protective railing. Two first bolts are threadedly connected inside the connecting plate, and the multiple first bolts are respectively threaded into the inside of the first and second hinge frames.

[0006] By adopting the above technical solution, multiple guardrails can be quickly positioned and installed, simplifying the installation process and thus improving installation efficiency.

[0007] As a further description of the above technical solution: the limiting mechanism includes a fixed plate, the fixed plate is fixedly connected to the top of the second hinge frame, a slider is fixedly connected to one side of the fixed plate, a limiting groove is opened on one side of the first hinge frame, the inner side of the limiting groove is slidably connected to the slider, a second bolt is threaded inside the limiting groove, the second bolt passes through the fixed plate and the slider, and the fixed plate and the slider are threaded together.

[0008] By adopting the above technical solution, the first hinge frame and the second hinge frame can be quickly unfolded to a preset angle through the limiting groove, so as to be quickly spliced ​​with multiple guardrails, which can further improve construction efficiency.

[0009] The technical effects and advantages of this utility model are as follows: 1. By setting up protective components, compared with existing technologies, the guardrail is connected to the side frame and the limiting cylinder at both ends, which enables rapid positioning and installation during installation. After installation, it can protect the first and second stairs in both directions, which simplifies the installation process of the guardrail, greatly shortens the installation time, and thus improves construction efficiency. At the same time, the limiting cylinder and the threaded cylinder can limit the guardrail, preventing the guardrail from deforming or overturning, thereby enhancing the stability of the structure. 2. By setting a limiting mechanism, compared with the existing technology, the first hinge frame and the second hinge frame are hinged through a support shaft, which allows them to be in a folded state during transportation and storage, reducing space occupation. By using a slider to slide and slide on the inside of the limiting groove, the unfolding angle of the first hinge frame and the second hinge frame can be limited, and the first hinge frame and the second hinge frame can be quickly unfolded to a preset angle to facilitate quick connection with multiple guardrails, thereby improving installation efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0011] Figure 2 This is a schematic diagram of the top structure of the first and second staircases of this utility model.

[0012] Figure 3 This is a partial structural diagram of the side frame connection of this utility model.

[0013] Figure 4 This is a schematic diagram of the protective railing structure of this utility model.

[0014] Figure 5 This is a partial structural diagram of the second hinge frame connection of this utility model.

[0015] Figure 6 This is a schematic diagram of the limiting cylinder structure of this utility model.

[0016] Figure 7 This is a schematic diagram of the fixed disk structure of this utility model.

[0017] Figure 8 For the present utility model Figure 4 Enlarged view of the structure of part A in the middle.

[0018] The attached diagram is labeled as follows: 1. First staircase; 2. Second staircase; 3. Side frame; 4. Fixing block; 5. Rotary cylinder; 6. Threaded rod; 7. Threaded cylinder; 8. Guardrail; 9. Support shaft; 10. First hinge frame; 11. Second hinge frame; 12. Limiting cylinder; 13. Connecting plate; 14. Insert rod; 15. First bolt; 16. Fixing plate; 17. Sliding block; 18. Second bolt; 19. Limiting groove; 20. Insertion hole. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] The embodiments disclosed in this application are as follows: Figure 1-8 The prefabricated scissor stair bidirectional edge protection device shown includes a side frame 3 installed on the first stair 1 and the second stair 2, and the side frame 3 is equipped with a protective component and a limiting mechanism. The protective assembly includes multiple fixing blocks 4, each fixedly connected to one side of the side frame 3. A rotating cylinder 5 is disposed between two fixing blocks 4. Threaded rods 6 are fixedly connected to both sides of the rotating cylinder 5, and the threaded rods 6 are rotatably connected to the inside of the fixing blocks 4. A threaded cylinder 7 is threadedly connected to the outside of the threaded rods 6, and the threaded cylinder 7 is slidably connected to the inside of the fixing blocks 4. A protective railing 8 is inserted into the outside of the threaded cylinder 7, and the protective railing 8 is inserted into the top of the side frame 3. A support shaft 9 is disposed on one side of the side frame 3, and the outside of the support shaft 9 is fixed. A first hinge frame 10 is connected, and a second hinge frame 11 is rotatably connected to the outside of the support shaft 9. Multiple limiting cylinders 12 are fixedly connected to the bottom ends of both the first hinge frame 10 and the second hinge frame 11. The inside of each limiting cylinder 12 is inserted into the outside of the guardrail 8. An insertion hole 20 is provided on one side of each limiting cylinder 12. A connecting plate 13 is provided on one side of both the first hinge frame 10 and the second hinge frame 11. Multiple insert rods 14 are fixedly connected to one side of each connecting plate 13. The insert rods 14 pass through the insertion hole 20 and are inserted into the outside of the guardrail 8. The connecting plate 13 has two first bolts 15 internally threadedly connected. Multiple first bolts 15 are respectively threadedly connected to the first hinge frame 10 and the second hinge frame 11. Multiple guardrails 8 are inserted into the side frames 3, allowing them to be quickly inserted into the two side frames 3. Rotation of the threaded rod 6 drives the threaded cylinder 7 to move, allowing the threaded cylinder 7 to be inserted into the bottom end of the guardrail 8, thus limiting its movement. Then, multiple limiting cylinders 12 are inserted into the top end of the guardrail 8, providing multiple limiting... The cylinder 12 can be quickly connected to the guardrail 8. When the top of the guardrail 8 contacts the inside of the limiting cylinder 12, the insert rod 14 can be inserted into the limiting cylinder 12 through the insertion hole 20 and can be inserted into the top of the guardrail 8, thereby completing the connection with multiple guardrails 8. This allows for the rapid installation of the protective components, thus providing bidirectional protection for the first staircase 1 and the second staircase 2. At the same time, the limiting cylinder 12 and the threaded cylinder 7 can limit the guardrail 8, preventing it from deforming or overturning, thereby enhancing the stability of the structure.

[0021] Reference Figure 5 and 7As shown, the limiting mechanism includes a fixed plate 16, which is fixedly connected to the top of the second hinge frame 11. A slider 17 is fixedly connected to one side of the fixed plate 16. A limiting groove 19 is formed on one side of the first hinge frame 10. The inner side of the limiting groove 19 is slidably connected to the slider 17. A second bolt 18 is threadedly connected inside the limiting groove 19. The second bolt 18 passes through the fixed plate 16 and the slider 17, and the fixed plate 16 and the slider 17 are threadedly connected inside. The first hinge frame 10 and the second hinge frame 11 are hinged by a support shaft 9, so that the second hinge frame 11 and the first hinge frame 10 can be folded during transportation, thereby reducing the space area. By sliding the slider 17 inside the limiting groove 19, the first hinge frame 10 and the second hinge frame 11 can be quickly unfolded to a preset angle, so that the first hinge frame 10 and the second hinge frame 11 can drive multiple limiting cylinders 12 to be perpendicular to the guardrail 8, so as to quickly connect with multiple guardrails 8, thereby further improving the installation efficiency.

[0022] Working principle of this utility model: This utility model designs a prefabricated two-way edge protection device for scissor stairs, the specific structure of which is shown in the attached instruction manual. Figure 1-8As shown, in this technical solution, through the cooperation between various structures, when it is necessary to protect one side of the first staircase 1 and the second staircase 2, the guardrail 8 is inserted into the side frame 3, so that multiple guardrails 8 can be inserted into the two side frames 3 respectively. Then, the rotating cylinder 5 is rotated, which drives the two threaded rods 6 to rotate, so that the two threaded rods 6 can move through the threaded cylinder 7. Then, one end of the threaded cylinder 7 can be inserted into the guardrail 8, thereby limiting the guardrail 8. Then, the second hinge frame 11 is rotated, and the second hinge frame 11 is rotatably connected to the outside of the support shaft 9, so that the second hinge frame 11 can drive the slider 17 to deflect in the limiting groove 19 through the fixed plate 16. The slider 17 contacts the inside of the limiting groove 19, and the distance of the limiting groove 19 can limit the deflection angle of the second hinge frame 11. Then, the second bolt 18 passes through the fixed plate 16 and the slider 17, and connects with the fixed plate 16 and the slider 17. The inner thread of the limiting groove 19 is used to fix the deflection angle of the second hinge frame 11, thereby fixing the included angle between the first hinge frame 10 and the second hinge frame 11. This allows multiple limiting cylinders 12 to be perpendicular to multiple guardrails 8. Then, the multiple limiting cylinders 12 are aligned with the guardrails 8 from top to bottom, allowing multiple limiting cylinders 12 to be inserted on the outside of the guardrails 8. This allows the first hinge frame 10 and the second hinge frame 11 to be installed on the outside of multiple guardrails 8. Subsequently, multiple insert rods 14 on one side of the connecting plate 13 are aligned with the insertion holes 20, and multiple insert rods 14 are inserted into the insertion holes 20, allowing multiple insert rods 14 to pass through the limiting cylinders 12 and the guardrails 8. This limits the top of the guardrails 8, and the connecting plate 13 is limited by two first bolts 15. This allows the first hinge frame 10 and the second hinge frame 11 to provide bidirectional protection for one side of the first staircase 1 and the second staircase 2 after installation.

[0023] In the accompanying drawings of the embodiments disclosed in this utility model, only the structures involved in the embodiments of this utility model are shown. Other structures can be referred to with ordinary design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are existing technologies and are therefore not shown in the figures and will not be described here. In conclusion, the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

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