A high-altitude work safety railing device

Abstract

This utility model discloses a high-altitude work safety railing device, which includes a support base. Several vertical bars are evenly spaced along the top edge of the support base. A rectangular protective frame is fixedly installed between the tops of the vertical bars. An inlet / outlet is provided in the center of the rectangular protective frame. A fixing plate is fixedly installed on the top of the support base at the inlet / outlet. A liftable first-stage n-shaped protective frame is installed on the surface of the fixing plate. A liftable second-stage n-shaped protective frame is installed on the surface of the first-stage n-shaped protective frame. A liftable third-stage n-shaped protective frame is installed on the surface of the second-stage n-shaped protective frame. This high-altitude work safety railing device has an adjustable protective structure, which facilitates workers' movement up and down while effectively ensuring the safety and reliability of the railing protection.

Description

Technical Field

[0001] This utility model belongs to the field of guardrail technology, specifically a high-altitude operation guardrail device. Background Technology

[0002] High-altitude work railings are critical protective facilities for ensuring the safety of workers at heights. They are mainly used in areas with a risk of fall, such as work platforms, building edges, and openings, to effectively prevent people and materials from falling. They are typically composed of components such as posts, horizontal bars (handrails), and kickboards (toe boards), and are made of various materials, such as steel and aluminum alloys, and must have sufficient strength, stability, and weather resistance. The height of the railings, the spacing between the bars, and the installation method must strictly comply with national and industry safety standards to ensure that they can withstand certain impact loads.

[0003] Currently, some high-altitude work safety railings are designed with a low height to facilitate workers' access, but this low railing design lacks safety. Furthermore, some railings have access doors installed on them, and the opening and closing of these doors requires a large space. Therefore, improvements are needed to address these issues. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-altitude work guardrail device, including a support base, a plurality of vertical bars are evenly installed at the top edge of the support base, a rectangular protective frame plate is fixedly installed between the tops of the plurality of vertical bars, an inlet and outlet are opened in the middle of the rectangular protective frame plate, a fixed plate is fixedly installed on the top of the support base at the inlet and outlet, a liftable first-level n-shaped protective frame is installed on the surface of the fixed plate, a liftable second-level n-shaped protective frame is installed on the surface of the first-level n-shaped protective frame, and a liftable third-level n-shaped protective frame is installed on the surface of the second-level n-shaped protective frame.

[0005] Preferably, two vertical grooves are symmetrically provided on the opposite sides of the two vertical bars on both sides of the inlet and outlet, as well as on both sides inside the first-level n-shaped protective frame, the second-level n-shaped protective frame, and the third-level n-shaped protective frame. Two sliding blocks are fixedly installed on both ends of the fixing plate and on both sides outside the first-level n-shaped protective frame, the second-level n-shaped protective frame, and the third-level n-shaped protective frame. The sliding blocks are aligned with the vertical grooves and are slidably installed inside the vertical grooves.

[0006] Preferably, the fixed plate has a winding through groove in the middle, an installation shaft is rotatably installed at the lower part of the winding through groove, a winding wheel is fixedly installed in the middle of the installation shaft, and pulleys are rotatably installed on both sides of the top of the winding through groove. The first-level n-shaped protective frame has through grooves on both sides, and pulleys are rotatably installed on the upper and lower parts of the through grooves. The second-level n-shaped protective frame has through grooves on both sides, and pulleys are rotatably installed on the upper and lower parts of the through grooves. Cables are installed between pulleys on the same side, the two pulleys on the second side, and the two pulleys on the third side. One end of each cable is fixedly connected to the lower part of the inner side of the third-level n-shaped protective frame, and the other end of each cable is fixedly connected to the surface of the winding wheel.

[0007] Preferably, one end of the mounting shaft extends to one side of the fixed plate and is fixedly mounted with a small worm gear. A worm gear that meshes with the small worm gear is rotatably mounted on one side of the fixed plate. A rotating wheel is fixedly mounted on the top of the worm gear, and a rotating handle is rotatably mounted on the surface of the rotating wheel through a bearing.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-altitude operation guardrail device has a height-adjustable protective structure, which facilitates workers to go up and down, while effectively ensuring the safety and reliability of the guardrail protection. At the same time, the height-adjustable protective structure is simple in design, easy to use, and stable and reliable in operation and adjustment. Its performance can meet the use requirements of high-altitude operation guardrails.

[0009] The first, second, and third level N-shaped protective frames, folded and retracted onto the fixed plate, are relatively short, making it easy for workers to step over them. Once a worker stands on the support base, they rotate a lever to turn the rotating wheel and worm gear. The worm gear's rotation drives a small worm wheel, which in turn rotates the mounting shaft and winding wheel. The winding wheel then winds up two cables. These cables, once wound up, first move the third level N-shaped protective frame upwards via two pulleys, then the second level N-shaped protective frame upwards via two pulleys, and finally the first level N-shaped protective frame upwards via pulley one. Ultimately, the first, second, and third level N-shaped protective frames unfold on the fixed plate to shield the entrance and exit, while simultaneously aligning the top of the third level N-shaped protective frame with the top of the rectangular protective frame. Attached Figure Description

[0010] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0011] In the attached diagram:

[0012] Figure 1 This is a schematic diagram of the structure of the high-altitude operation guardrail device of this utility model;

[0013] Figure 2 This utility model Figure 1 A partial sectional view of the structure;

[0014] Figure 3 This utility model Figure 1 A partial rear-view structural schematic diagram;

[0015] Figure 4 This utility model Figure 2 A partial sectional view of the structure;

[0016] In the diagram: 1. Support base; 2. Vertical rod; 3. Rectangular protective frame plate; 4. Inlet / outlet; 5. Fixing plate; 6. First-level n-shaped protective frame; 7. Second-level n-shaped protective frame; 8. Third-level n-shaped protective frame; 9. Vertical groove; 10. Sliding block; 11. Winding through groove; 12. Mounting shaft; 13. Winding wheel; 14. Pulley 1; 15. Through groove 1; 16. Pulley 2; 17. Through groove 2; 18. Pulley 3; 19. Cable; 20. Small worm gear; 21. Worm; 22. Rotating wheel; 23. Rotating lever. Detailed Implementation

[0017] 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.

[0018] Depend on Figures 1 to 4 The present invention includes a support base 1, with a plurality of vertical rods 2 evenly spaced along the top edge of the support base 1. The vertical rods 2 on the top of the support base 1 have a rectangular structure. A rectangular protective frame plate 3 is fixedly installed between the tops of the vertical rods 2. An inlet / outlet 4 is provided in the middle of the rectangular protective frame plate 3, and the inlet / outlet 4 is located between two of the vertical rods 2. A fixing plate 5 is fixedly installed on the top of the support base 1 at the inlet / outlet 4. A liftable first-level n-shaped protective frame 6 is installed on the surface of the fixing plate 5. A liftable second-level n-shaped protective frame 7 is installed on the surface of the first-level n-shaped protective frame 6. A liftable third-level n-shaped protective frame 8 is installed on the surface of the second-level n-shaped protective frame 7. The first-level n-shaped protective frame 6, the second-level n-shaped protective frame 7, and the third-level n-shaped protective frame 8 are folded and retracted on the fixing plate 5 to facilitate workers to cross over.

[0019] Two vertical grooves 9 are symmetrically provided on the opposite sides of the two vertical rods 2 on both sides of the inlet and outlet 4, as well as on both sides inside the first-level n-shaped protective frame 6, the second-level n-shaped protective frame 7, and the third-level n-shaped protective frame 8. Two sliding blocks 10 are fixedly installed on both ends of the fixing plate 5 and on both sides outside the first-level n-shaped protective frame 6, the second-level n-shaped protective frame 7, and the third-level n-shaped protective frame 8. The sliding blocks 10 are aligned with the vertical grooves 9 and are slidably installed inside the vertical grooves 9, so that the first-level n-shaped protective frame 6, the second-level n-shaped protective frame 7, and the third-level n-shaped protective frame 8 can be stably installed and adjusted in height.

[0020] A winding through groove 11 is provided in the middle of the fixed plate 5. An installation shaft 12 is rotatably installed at the lower part of the winding through groove 11. A winding wheel 13 is fixedly installed in the middle of the installation shaft 12. Pulley 14 is rotatably installed on both sides of the top of the winding through groove 11. A through groove 15 is provided on both sides of the first-level n-shaped protective frame 6. Pulley 2 16 is rotatably installed on the upper and lower parts of the through groove 15. A through groove 2 17 is provided on both sides of the second-level n-shaped protective frame 7. Pulley 3 18 is rotatably installed on the upper and lower parts of the through groove 2 17. Cables 19 are installed between the pulley 14, the two pulleys 2 16 and the two pulleys 3 18 on the same side. One end of the two cables 19 is fixedly connected to the lower part of the inner sides of the third-level n-shaped protective frame 8, and the other end of the two cables 19 is fixedly connected to the surface of the winding wheel 13.

[0021] One end of the mounting shaft 12 extends to one side of the fixed plate 5 and is fixedly mounted with a small worm gear 20. The small worm gear 20 is located above the bearing base 1. A worm 21 that meshes with the small worm gear 20 is rotatably mounted on one side of the fixed plate 5. A rotating wheel 22 is fixedly mounted on the top of the worm 21. A rotating handle 23 is rotatably mounted on the surface of the rotating wheel 22 through a bearing, thereby enabling effective adjustment.

[0022] Specifically, the first-level n-shaped protective frame 6, the second-level n-shaped protective frame 7, and the third-level n-shaped protective frame 8, which are folded and retracted on the fixed plate 5, are relatively short in height, making it easy for workers to step over them. When a worker stands on the support base 1, he rotates the lever 23 to rotate the rotating wheel 22 and the worm gear 21. The rotation of the worm gear 21 will drive the small worm wheel 20 to rotate the mounting shaft 12 and the winding wheel 13. The rotation of the winding wheel 13 will wind up the two cables 19. The two cables 19, after being wound up, will first drive the third-level n-shaped protective frame 8 to move upward through the two pulleys 18, and then drive the second-level n-shaped protective frame 7 to move upward through the two pulleys 16, and finally drive the first-level n-shaped protective frame 6 to move upward through the pulley 14.

[0023] Finally, the first-level n-shaped protective frame 6, the second-level n-shaped protective frame 7, and the third-level n-shaped protective frame 8 are unfolded on the fixed plate 5 to shield and protect the entrance and exit 4, while the top of the third-level n-shaped protective frame 8 is flush with the top of the rectangular protective frame plate 3.

[0024] This high-altitude work safety railing device features an adjustable protective structure, which facilitates workers' movement up and down while effectively ensuring the safety and reliability of the railing. Furthermore, the adjustable structure is simple in design, easy to use, and offers stable and reliable operation and adjustment, meeting the performance requirements for high-altitude work safety railings.

Claims

1. A high working guardrail device comprising a load-bearing base (1), characterized in that: Several vertical rods (2) are installed at equal intervals at the top edge of the bearing base (1). A rectangular protective frame plate (3) is fixedly installed between the tops of the several vertical rods (2). An inlet and outlet (4) is opened in the middle of the rectangular protective frame plate (3). A fixed plate (5) is fixedly installed on the top of the bearing base (1) at the inlet and outlet (4). A liftable first-level n-shaped protective frame (6) is installed on the surface of the fixed plate (5). A liftable second-level n-shaped protective frame (7) is installed on the surface of the first-level n-shaped protective frame (6). A liftable third-level n-shaped protective frame (8) is installed on the surface of the second-level n-shaped protective frame (7).

2. A high-rise work guardrail device according to claim 1, characterized by: Two vertical grooves (9) are symmetrically opened on the opposite sides of the two vertical rods (2) on both sides of the inlet and outlet (4) and on both sides inside the first-level n-shaped protective frame (6), the second-level n-shaped protective frame (7) and the third-level n-shaped protective frame (8). Two sliding blocks (10) are fixedly installed on both ends of the fixing plate (5) and on both sides outside the first-level n-shaped protective frame (6), the second-level n-shaped protective frame (7) and the third-level n-shaped protective frame (8). The sliding blocks (10) are aligned with the vertical grooves (9) and are slidably installed inside the vertical grooves (9).

3. The overhead guardrail assembly of claim 1, wherein: The fixed plate (5) has a winding through groove (11) in the middle. A mounting shaft (12) is rotatably installed at the lower part of the winding through groove (11). A winding wheel (13) is fixedly installed at the middle part of the mounting shaft (12). Pulleys (14) are rotatably installed on both sides of the top of the winding through groove (11). The first-stage n-shaped protective frame (6) has through grooves (15) on both sides. Pulleys (16) are rotatably installed on the upper and lower parts of the through grooves (15). The second-stage n-shaped protective frame (6) has through grooves (15) on both sides. Both sides of the protective frame (7) are provided with through slots 2 (17). The upper and lower parts of the through slots 2 (17) are rotatably installed with pulleys 3 (18). Pull cables (19) are installed between pulley 1 (14), two pulleys 2 (16) and two pulleys 3 (18) on the same side. One end of the two pull cables (19) is fixedly connected to the lower part of the inner side of the three-level n-shaped protective frame (8), and the other end of the two pull cables (19) is fixedly connected to the surface of the winding wheel (13).

4. A high-rise guardrail device according to claim 3, characterized in that: One end of the mounting shaft (12) extends to the outside of one side of the fixing plate (5) and is fixedly mounted with a small worm gear (20). A worm (21) that meshes with the small worm gear (20) is rotatably mounted on one side of the fixing plate (5). A rotating wheel (22) is fixedly mounted on the top of the worm gear (21). A rotating handle (23) is rotatably mounted on the surface of the rotating wheel (22) through a bearing.

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