Construction method of an adjustable safety device for high-altitude operations on steel structures

Abstract

This invention discloses a construction method for an adjustable safety device for high-altitude operations on steel structures, comprising: attaching an upper slot on an upper vertical pipe to the upper flange plate of an H-shaped steel beam, and attaching a lower slot on a lower vertical pipe to the lower flange plate of the H-shaped steel beam; fixing the upper slot to the upper flange plate and the lower slot to the lower flange plate; tightening the upper and lower vertical pipes together to ensure that the fixing points of the upper and lower slots are simultaneously stressed; installing several upper and lower vertical pipes at intervals according to site requirements; then threading safety ropes between the upper vertical pipes and fixing both ends of the safety ropes, with the upper vertical pipes and safety ropes together forming a safety protection grid. The beneficial effects of this invention are: utilizing a firmly fixed upper vertical pipe as the main support for safety protection, and then threading several safety ropes onto it, together forming a safety protection grid, solving the problems of lifeline and edge protection in high-altitude operations.

Description

Technical Field

[0001] This invention belongs to the field of construction safety protection technology, specifically relating to an adjustable safety device for high-altitude operations on steel structures. Background Technology

[0002] The biggest safety risk during the installation of steel beams and roof enclosure structures for steel roofs is working at heights. Because the main structure is not yet completed during the construction of the steel roof structure, the safety belts of the workers cannot be used with a high attachment point and there are no effective suspension points for the safety belts. At the same time, edge protection of the steel roof structure is also quite difficult.

[0003] To address the issues of lifeline and edge protection for high-altitude operations on steel structure roofs, the traditional on-site practice is to weld angle steel poles to the top of the upper flange of the steel beams and tension steel wire ropes on the angle steel as a lifeline and safety protection for high-altitude operations on steel structures. This practice not only wastes angle steel materials and increases construction costs, but also faces difficulties in dismantling later and causes quality problems such as damage to the anti-corrosion coating on the surface of steel structure components.

[0004] Therefore, it is necessary to research and invent a safety protection device that can serve as both a safety lifeline for high-altitude operations on steel structures and a safety protection device that is easy to install and dismantle, reusable, cost-effective, and highly applicable. Summary of the Invention

[0005] The purpose of this invention is to provide a construction method for an adjustable safety device for high-altitude operations on steel structures, which solves the problems of inconvenience, increased cost, and inconvenience in dismantling traditional welded angle steel poles used as a whole for safety protection on site.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A construction method for an adjustable safety device for high-altitude operations on steel structures includes the following steps:

[0008] Step a: Secure the upper slot on the upper riser to the upper flange plate of the H-beam, and secure the lower slot on the lower riser to the lower flange plate of the H-beam. The upper slot is fixed to the upper flange plate using flange fastening components, and the lower slot is fixed to the lower flange plate using flange fastening components.

[0009] Step b: Adjust the tensioning action of the tie assembly between the upper and lower risers to tighten the tie between the upper and lower risers, ensuring that the fixing points of the upper and lower slots are simultaneously stressed.

[0010] Step c: Install several upper and lower risers at intervals according to the site requirements and steps a and b. Then, thread safety ropes between the upper risers and fix both ends of the safety ropes. The upper risers and safety ropes together form a safety protection grid.

[0011] Furthermore, the fabrication steps for the upper and lower risers are as follows:

[0012] Drill a hole in the upper riser, fix the upper riser to the upper slot, then install the flange fastening assembly on the upper slot, and at the same time install the upper part of the tie rod assembly on the upper riser;

[0013] Fix the lower riser to the lower slot, then install the flange fastening assembly on the lower slot, and at the same time install the lower part of the tie rod assembly on the lower riser;

[0014] Connect the two ends of the middle part of the pull assembly to its upper and lower parts respectively.

[0015] Both the upper and lower risers are rectangular steel pipes.

[0016] Furthermore, both the upper and lower card slots are U-shaped and their openings face horizontally to the same side.

[0017] Furthermore, stiffening plates are connected between the upper upright pipe and the upper slot, and between the lower upright pipe and the lower slot.

[0018] Furthermore, the flange fastening assembly is a fastening bolt.

[0019] Furthermore, the pull assembly includes an upper pull block, a lower pull block, and a pull screw. The upper vertical pipe is fixedly connected to the upper pull block, and the lower vertical pipe is fixedly connected to the lower pull block. A pull screw is threadedly connected between the upper pull block and the lower pull block.

[0020] Furthermore, at least three rows of safety ropes are arranged on the upper riser.

[0021] Furthermore, the safety rope is a steel wire rope.

[0022] Furthermore, both the upper opening of the upper riser and the lower opening of the lower riser are equipped with protective plugs.

[0023] Furthermore, the protective plug is a rubber plug.

[0024] Furthermore, between steps b and c, there is also step bc: connecting the connecting plate at one end of the anti-overturning hook plate to the lower riser through the riser connection assembly, and locking the hook groove at the other end of the anti-overturning hook plate onto the lower flange plate at the other end, with the hook groove fixed to the lower flange plate by the flange fastening assembly.

[0025] Furthermore, the riser connection assembly is a connecting bolt.

[0026] The beneficial effects of this invention are:

[0027] (1) Use a fixed and sturdy upper pipe as the main support for safety protection, and then thread several safety ropes on it. The two together form a safety protection grid to solve the problems of lifeline and edge protection in high-altitude operations.

[0028] (2) The overall fixed installation is achieved by using various types of bolts and screws, which avoids the difficulties in installation and disassembly caused by traditional welding and facilitates on-site construction.

[0029] (3) The riser is split and connected and fixed by a tie rod. This can adjust the installation spacing to meet different steel beam specifications, and the tie rod further improves the connection stability of the slot.

[0030] The aforementioned main solution of the present invention and its various further alternative solutions can be freely combined to form multiple solutions, all of which are solutions that can be adopted and are claimed by the present invention; furthermore, the (non-conflicting alternatives) can also be freely combined with each other and with other alternatives. Those skilled in the art, after understanding the solution of the present invention, will realize from the prior art and common general knowledge that there are many combinations, all of which are technical solutions to be protected by the present invention, and will not be exhaustively listed here. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention.

[0032] Figure 2 yes Figure 1 Section 1-1.

[0033] Figure 3 yes Figure 1 2-2 cross-sectional view.

[0034] In the diagram: 1-H-shaped steel beam, 2-upper flange plate, 3-lower flange plate, 4-upper riser, 5-upper slot, 6-lower riser, 7-lower slot, 8-stiffening plate, 9-fastening bolt, 10-upper tie block, 11-lower tie block, 12-tie rod, 13-safety rope, 14-protective plug, 15-anti-overturning hook plate, 16-hook groove, 17-connecting plate, 18-connecting bolt. Detailed Implementation

[0035] The following non-limiting examples are used to illustrate the present invention.

[0036] Example 1:

[0037] refer to Figures 1-3As shown, a construction method for an adjustable safety device for high-altitude operations on steel structures is disclosed. The safety device includes an upper riser 4, an upper slot 5, a lower riser 6, a lower slot 7, a stiffening plate 8, a fastening bolt 9, an upper tie block 10, a lower tie block 11, a tie rod 12, a safety rope 13, a protective plug 14, an anti-tipping hook plate 15, a hook groove 16, a connecting plate 17, and a connecting bolt 18.

[0038] The upper riser 4 is a 40×3mm rectangular steel pipe with a length of 1270mm. The upper riser 4 has at least three rows of φ16mm round holes for threading and installing the safety rope 13. With safety ropes 13 threaded between several upper risers 4, at least three rows of safety ropes 13 are arranged on each upper riser 4. The safety ropes 13 are preferably steel wire ropes. Based on the fixed installation of the upper risers 4, the horizontally threaded and end-fixed safety ropes 13, together with the upper risers 4, form a protective mesh structure.

[0039] An upper groove 5, matching the upper flange plate 2 of the H-beam 1, is welded and fixed to the bottom side of the upper riser 4. The upper groove 5 is a 90×60×60mm U-shaped steel with a thickness of 6mm, and the U-shaped opening of the upper groove 5 faces horizontally towards the H-beam 1. A stiffening plate 8, a 6mm thick triangular stiffening plate, is welded to the inside corner of the upper surface of the upper groove 5 and the upper riser 4 to strengthen the connection position.

[0040] The upper slot 5 is equipped with a flange fastening assembly, which is a fastening bolt 9. That is, a φ16mm fastening bolt (including a welding nut and a stud screwed onto the nut) is welded and fixed on the upper slot 5. The upper slot 5 is snapped into the left side of the upper flange plate 2, and then the fastening bolt 9 is used to lock the upper slot 5 and the upper flange plate 2 together, thereby realizing the installation and fixation of the upper riser 4.

[0041] The lower riser 6 is a 40×3mm rectangular steel pipe with a length of 320mm. A lower retaining groove 7, matching the lower flange plate 3 of the H-beam 1, is welded and fixed to the bottom side of the lower riser 6. The lower retaining groove 7 is a 90×60×60mm, 6mm thick U-shaped steel, with the U-shaped opening of the lower retaining groove 7 horizontally facing the H-beam 1. A stiffening plate 8, a 6mm thick triangular stiffening plate, is welded to the inside corner of the lower riser 6 along the centerline of the upper surface of the lower retaining groove 7, to reinforce the connection point.

[0042] The lower slot 7 is equipped with a flange fastening assembly, which is a fastening bolt 9, i.e., a φ16mm fastening bolt is welded and fixed on the lower slot 7. The lower slot 7 is snapped into the left side of the lower flange plate 3, and then the fastening bolt 9 is used to lock the lower slot 7 and the lower flange plate 3 together, thereby realizing the installation and fixation of the lower riser 6.

[0043] A tie rod assembly connects the upper riser 4 and the lower riser 6, which pulls the upper and lower risers together. Under the locking action of the fastening bolts, the tie action further enhances the locking effect and improves the overall stability of the device. At the same time, the tie rod assembly is adjustable, and the appropriate spacing between the upper and lower U-shaped steel slots can be adjusted according to the height of the H-beam cross-section.

[0044] The pull assembly includes an upper pull block 10, a lower pull block 11, and a pull rod 12. The bottom end of the upper riser 4 is welded and fixedly connected to the upper pull block 10, which is a 20mm thick square steel with a pre-drilled φ22mm bolt hole at its center. The top end of the lower riser 6 is fixedly connected to the lower pull block 11, which is also a 20mm thick square steel with a pre-drilled φ22mm bolt hole at its center. A pull rod 12 is threadedly connected between the upper pull block 10 and the lower pull block 11. The pull rod 12 is a φ22mm threaded rod with both positive and negative threads, and its two ends are screwed into the bolt holes of the pull blocks respectively.

[0045] The anti-tipping hook plate 15 is an irregularly shaped hook-shaped steel plate. One end of the anti-tipping hook plate 15 is welded with a vertical connecting plate 17, and a stiffening plate 8 for fixing and reinforcing is welded between the anti-tipping hook plate 15 and the connecting plate 17. The connecting plate 17 is detachably connected to the lower riser 6 through a riser connection assembly, which consists of connecting bolts 18, allowing the anti-tipping hook plate 15 to be flexibly assembled and disassembled according to installation requirements.

[0046] The other end of the anti-overturning hook plate 15 is an integrally formed hook groove 16 that matches the lower flange plate 3 of the H-shaped steel beam 1. The structure of the hook groove 16 is similar to a slot, with the slot opening facing horizontally toward the H-shaped steel beam 1. The difference is that the lower slot 7 and the hook groove 16 match the two sides of the lower flange plate 3 of the H-shaped steel beam 1, respectively. That is, the lower slot 7 fixes the left side of the lower flange plate 3 to achieve fixation, and the hook groove 16 fixes the right side of the lower flange plate 3 to achieve anti-locking.

[0047] The hook groove 16 is equipped with a flange fastening assembly, which is a fastening bolt 9, i.e., a φ16mm fastening bolt is welded and fixed on the hook groove 16. Based on the lower riser 6 being fixed by the lower clamping groove 7, an anti-tipping hook plate 15 is configured to hook the right side of the lower flange plate 3, providing torque to the lower riser 6 and improving the overall anti-tipping capability of the device.

[0048] The upper opening of the upper riser 4 and the lower opening of the lower riser 6 are both equipped with protective plugs 14. The protective plugs 14 are rubber plugs, which are used to seal the upper and lower openings of the riser to achieve the functions of rainproofing and dustproofing.

[0049] The manufacturing steps for this safety device are as follows:

[0050] Three rows of horizontally arranged φ16mm round holes are made on the upper riser 4. The upper riser 4 is welded and fixed to the upper slot 5. Then, a stiffening plate 8 is welded between the upper riser 4 and the upper slot 5. Fastening bolts 9 are installed on the upper slot 5 as flange fastening components. At the same time, tie blocks 10 are installed on the upper riser 4 as the upper part of the tie assembly.

[0051] Weld the lower riser 6 to the lower slot 7 and fix them together. Then weld the stiffening plate 8 between the upper riser 4 and the upper slot 5 and install the fastening bolt 9 on the lower slot 7 as the flange fastening assembly. At the same time, install the lower tie block 11 on the lower riser 6 as the lower part of the tie assembly.

[0052] The two ends of the middle part of the pull assembly, namely the pull screw 12, are respectively connected to the upper pull block 10 and the lower pull block 11.

[0053] The construction method includes the following steps:

[0054] Step a: Secure the upper slot 5 on the upper riser 4 to the upper flange plate 2 of the H-beam 1, and secure the lower slot 7 on the lower riser 6 to the lower flange plate 3 of the H-beam 1. The upper slot 5 is fixed to the upper flange plate 2 using the flange fastening assembly (tighten the fastening bolt 9), and the lower slot 7 is fixed to the lower flange plate 3 using the flange fastening assembly (tighten the fastening bolt 9).

[0055] Step b: Adjust the counter-pull action of the counter-pull assembly between the upper riser 4 and the lower riser 6 by rotating the counter-pull screw 12 to tighten the counter-pull between the upper riser 4 and the lower riser 6, ensuring that the fixing points of the upper slot 5 and the lower slot 7 are simultaneously stressed.

[0056] Step c: Install several upper risers 4 and lower risers 6 at intervals (no more than 4m apart) according to the site requirements in steps a and b. Then, thread a safety rope 13 between the upper risers 4. The safety rope 13 is threaded through the opening of the upper riser 4 and the two ends of the safety rope 13 are fixed. The upper risers 4 and the safety rope 13 together form a safety protection grid.

[0057] Between steps b and c, there are also steps bc: connecting the connecting plate 17 at one end of the anti-overturning hook plate 15 to the lower riser 6 through the riser connection assembly, and locking the hook groove 16 at the other end of the anti-overturning hook plate 15 onto the lower flange plate 3 at the other end. The hook groove 16 is fixed to the lower flange plate 3 by the flange fastening assembly.

[0058] After completing the high-altitude work and ensuring site safety, first remove the safety wire rope, then loosen the threaded fastening screws in the device, followed by loosening the φ16 fastening bolts. Remove the entire device to complete the removal of the protective equipment. After removal, the protective equipment should be stored properly and protected for future reuse.

[0059] The foregoing basic examples and their further alternative examples of the present invention can be freely combined to form multiple embodiments, all of which are embodiments that can be adopted and claimed by the present invention. In the present invention, each alternative example can be arbitrarily combined with any other basic example and alternative example.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A construction method for an adjustable safety device used in high-altitude operations on steel structures, characterized in that, Includes the following steps: Step a, the upper slot (5) on the upper riser (4) is attached to the upper flange plate (2) of the H-beam (1), and the lower slot (7) on the lower riser (6) is attached to the lower flange plate (3) of the H-beam (1). The upper slot (5) is fixed to the upper flange plate (2) using flange fastening components, and the lower slot (7) is fixed to the lower flange plate (3) using flange fastening components. Step b, adjust the pulling action of the pull assembly between the upper riser (4) and the lower riser (6) to tighten the pull between the upper riser (4) and the lower riser (6) and ensure that the fixing points of the upper slot (5) and the lower slot (7) are simultaneously stressed; Step c: Install several upper risers (4) and lower risers (6) at intervals according to the site requirements in steps a and b. Then, thread a safety rope (13) between the several upper risers (4) and fix the two ends of the safety rope (13). The upper risers (4) and the safety rope (13) together form a safety protection grid. The manufacturing steps for the upper riser (4) and the lower riser (6) are as follows: Make a hole in the upper riser (4), fix the upper riser (4) to the upper slot (5), then install the flange fastening assembly on the upper slot (5), and at the same time install the upper part of the tie assembly on the upper riser (4); Fix the lower riser (6) to the lower slot (7), then install the flange fastening assembly on the lower slot (7), and at the same time install the lower part of the pull assembly on the lower riser (6); Connect the two ends of the middle part of the pull assembly to its upper and lower parts respectively; Between steps b and c, there is also step bc: connecting the connecting plate (17) at one end of the anti-overturning hook plate (15) to the lower riser (6) through the riser connection assembly, and locking the hook groove (16) at the other end of the anti-overturning hook plate (15) onto the lower flange plate (3) at the other end. The hook groove (16) is fixed to the lower flange plate (3) through the flange fastening assembly.

2. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1, characterized in that: The upper riser (4) and the lower riser (6) are both rectangular steel pipes; stiffening plates are connected between the upper riser (4) and the upper slot (5) and between the lower riser (6) and the lower slot (7).

3. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1 or 2, characterized in that: The upper slot (5) and lower slot (7) are both U-shaped and their openings face the same side horizontally.

4. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1, characterized in that: The flange fastening assembly is a fastening bolt (9).

5. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1, characterized in that: The pull assembly includes an upper pull block (10), a lower pull block (11), and a pull screw (12). The upper vertical pipe (4) is fixedly connected to the upper pull block (10), and the lower vertical pipe (6) is fixedly connected to the lower pull block (11). The upper pull block (10) and the lower pull block (11) are threadedly connected by the pull screw (12).

6. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1, characterized in that: At least three rows of safety ropes (13) are arranged on the upper riser (4).

7. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1, characterized in that: The upper opening of the upper riser (4) and the lower opening of the lower riser (6) are both provided with protective plugs (14).

8. The construction method of the adjustable safety device for high-altitude operations on steel structures according to claim 1, characterized in that: The riser connection assembly is a connecting bolt (18).

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