Lower protection device for high-altitude steel structure welding operation

Abstract

The utility model belongs to the technical field of steel structure operation protection, and particularly relates to a lower protection device for high-altitude steel structure welding operation, which comprises two pieces of symmetrically arranged H-shaped steel, clamping blocks are symmetrically inserted and mounted at the lower parts, close to the outer sides, of the H-shaped steel, and the two clamping blocks are fixedly connected through bolts; through the arrangement of the clamping blocks, the connecting blocks, the supporting plates, the first rotary knobs and the suction cups, the clamping blocks can be effectively fixed to the H-shaped steel through the acting force of the suction cups and the counter-acting force between the H-shaped steel and the clamping blocks, the mode that a traditional device needs to be fixed by welding or punching on the H-shaped steel is changed, the H-shaped steel is effectively protected, and the practicability is high. The main body structure of the H-shaped steel is not damaged, the attributes of the H-shaped steel are reduced, by arranging the protection structure, the fixing assembly, the protection net and the like which are convenient to disassemble, the device is convenient to disassemble and assemble, the installation time in the actual use process is saved, and the use efficiency is greatly improved.

Description

A protective device for lower body of high-altitude steel structure welding operations Technical Field

[0001] This utility model belongs to the field of steel structure operation protection technology, and in particular relates to a lower protection device for high-altitude steel structure welding operations. Background Technology

[0002] Steel-based structures are one of the main types of building structures. Steel is characterized by high strength, light weight, good overall rigidity, and strong deformation capacity, making it particularly suitable for constructing large-span, super-high, and super-heavy buildings. Due to the height of these buildings, high-altitude welding operations are required. Currently, working at heights is a significant safety challenge in steel structure installation. The common practice is to weld square or round tube uprights to the flange plates of the steel beams, using safety ropes for protection. Welding these uprights to the flange plates increases the workload of welding and dismantling, wastes materials, and damages the steel beams, increasing subsequent processing work. Therefore, ensuring safety during high-altitude operations in steel structure construction has always been a difficult problem for steel structure installation companies.

[0003] For example, Chinese patent CN211775988U discloses a high-altitude protection device for a steel structure high-rise tower. It includes a protective net comprising a wire mesh and a frame. The frame is rectangular, with the wire mesh fixedly connected and covering one side of the frame. The device is characterized by: the fixed ends being fixedly connected to the corresponding steel columns of the installation floor; hinge shafts being provided on the exterior of the left and right sides of the frame, hinged to fixed plates on the corresponding sides; a first hanging part being provided at the middle of the front end face of the frame, and two symmetrical connecting parts being provided on the front end face near the left and right sides, each connected to a wire rope; and two second hanging parts being provided on the rear end face of the frame. This device overcomes the shortcomings of existing technologies, such as long installation cycles and high labor costs, simplifies the protective structure, eliminates the need for complex manual disassembly and assembly, greatly saves manpower and resources, and reduces construction costs.

[0004] This patent has some drawbacks in its use. While the rotating design reduces the overall installation difficulty of the protective device, it still requires welding a fixing plate onto the original steel structure as a rotating axis, which still damages the original steel structure. Furthermore, its protective capability is limited. Also, because the protective structure formed by the wire mesh and frame is installed before docking with the steel structure, its overall weight is relatively large, making it inconvenient for operators to install during high-altitude work. Therefore, we propose a lower protective device for high-altitude steel structure welding operations. Summary of the Invention

[0005] The purpose of this utility model is to provide a lower protective device for high-altitude steel structure welding operations to solve the problems mentioned in the background art.

[0006] In view of this, the present invention provides a lower protective device for high-altitude steel structure welding operations, comprising two symmetrically arranged H-beams. Clamping blocks are symmetrically inserted and installed on the lower outer side of the H-beams. The two clamping blocks are fixedly connected by bolts. A connecting block is fixed on the outer wall of the clamping blocks. A slot is formed on the upper surface of the connecting block. A support plate is inserted and installed between the two slots in the same row. A knob is threadedly connected to the support plate near the inner side of the H-beam. A suction cup is rotatably installed on one end of the knob, and the other side of the suction cup is tightly fitted to the outer wall of the H-beam.

[0007] A protective mechanism is provided, which is installed in one of the slots and is used to protect the high-altitude steel structure during welding operations.

[0008] In the above technical solution, the protective mechanism further includes:

[0009] Two mounting rods are arranged in parallel and symmetrically. A locking block is fixed to one end of each mounting rod near the support plate. Multiple evenly distributed positioning rings are fixed to the four side walls of each mounting rod. Protective ropes are fixed to two positioning rings located at corresponding positions between the two mounting rods. A protective net is fixed directly above the multiple protective ropes.

[0010] In the above technical solution, a second slot is provided on the upper surface of the end of the mounting rod away from the support plate, and a stabilizing rod is inserted and installed between the second slots on the two mounting rods.

[0011] In the above technical solution, further, a pull ring one is fixed to the end of the mounting rod away from the support plate, a pull rope is fixed to the pull ring one, a fixing block is inserted and installed on the upper inner side of the H-beam, a pull ring two is fixed to the outer wall of the fixing block, the other end of the pull rope is fixed to the pull ring two, and a fixing component for fixing to the H-beam is provided on the fixing block.

[0012] In the above technical solution, the fixing component further includes:

[0013] The threaded groove is located at the middle of the upper surface of the fixed block. The fixed block has symmetrically distributed sliding grooves that are perpendicular to the threaded groove. A knob is threadedly connected to the threaded groove. A limiting plate is slidably installed in the sliding groove. A sliding rod is fixed to the inner side wall of the limiting plate, and the other end of the sliding rod passes through the limiting plate and extends into the inner cavity of the threaded groove.

[0014] In the above technical solution, the bottom end of the second knob is truncated cone-shaped, and the end of the slide rod located inside the threaded groove is inclined.

[0015] In the above technical solution, the inner cavity of the slide groove is provided with a spring that engages with the slide rod, and the two ends of the spring are respectively fixed to the inner side wall of the limiting plate and the inner wall of the slide groove.

[0016] Furthermore, in the above technical solution, the outer wall of the limiting plate is provided with anti-slip texture.

[0017] The beneficial effects of this utility model are:

[0018] 1. This high-altitude steel structure welding operation lower protection device, by setting up clamping blocks, connecting blocks, support plates, knobs, and suction cups, uses the force of the suction cups and the reaction force between the H-beams and the clamping blocks to effectively fix the clamping blocks to the H-beams. This changes the traditional method of fixing the H-beams by welding or drilling holes, effectively protecting the H-beams without damaging the main structure or reducing their properties.

[0019] 2. The lower protective device for high-altitude steel structure welding operations, by setting up easily disassembled protective structures, fixing components and protective nets, makes the device easy to disassemble and install, saving installation time in actual use and greatly improving efficiency. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 is a schematic diagram of the stress structure of the clamping block and the H-beam in this utility model;

[0022] Figure 3 is a schematic diagram of the structure of the clamping block and the connecting block in this utility model;

[0023] Figure 4 is a schematic diagram of the protective mechanism in this utility model;

[0024] Figure 5 is a structural schematic diagram of the fixing component in this utility model.

[0025] The markings in the diagram are as follows:

[0026] 1. H-beam; 2. Clamping block; 3. Bolt; 4. Connecting block; 5. Slot 1; 6. Support plate; 7. Knob 1; 8. Suction cup; 9. Clamping block; 10. Mounting rod; 11. Positioning ring; 12. Protective rope; 13. Protective net; 14. Slot 2; 15. Stabilizing rod; 16. Pull ring 1; 17. Pull rope; 18. Fixing block; 19. Pull ring 2; 20. Threaded groove; 21. Slide groove; 22. Knob 2; 23. Slide rod; 24. Limiting plate; 25. Spring. Detailed Implementation

[0027] The present application will be further described in detail below with reference to Figures 1-5.

[0028] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0029] Example 1: This example provides a lower protective device for high-altitude steel structure welding operations, including two symmetrically arranged H-beams 1. The feature is that clamping blocks 2 are symmetrically inserted and installed on the lower outer side of the H-beams 1. The two clamping blocks 2 are fixedly connected by bolts 3. A connecting block 4 is fixed on the outer wall of the clamping block 2. A slot 5 is opened on the upper surface of the connecting block 4. A support plate 6 is inserted and installed between the two slots 5 in the same row. A knob 7 is threadedly connected on the support plate 6 near the inner side of the H-beams 1. A suction cup 8 is rotatably installed on one end of the knob 7, and the other side of the suction cup 8 is tightly attached to the outer wall of the H-beams 1.

[0030] The protective mechanism is installed on one of the slots 5 and is used to protect the high-altitude steel structure during welding operations.

[0031] Referring to Figure 2, when the knob 7 is turned inward, the suction cup 8 is tightly attached to the H-beam 1. The suction cup 8 is subjected to the outward force of the H-beam 1. At this time, the clamping block 2 and the connecting block 4 on the same side will be subjected to a force in the opposite direction of the H-beam 1, so that the clamping block 2 can be effectively fixed to the H-beam 1.

[0032] Example 2: This example provides a lower protective device for high-altitude steel structure welding operations. In addition to the technical solutions of the above examples, it also includes the following solutions, with the protective mechanism comprising:

[0033] Two mounting rods 10 are arranged in parallel and symmetrically. A locking block 9 is fixed to one end of the mounting rod 10 near the support plate 6. Multiple evenly distributed positioning rings 11 are fixed to the four side walls of the mounting rod 10. Protective ropes 12 are fixed to the two positioning rings 11 located at corresponding positions between the two mounting rods 10. A protective net 13 is fixed directly above the multiple protective ropes 12.

[0034] Example 3: This example provides a lower protection device for high-altitude steel structure welding operations. In addition to the technical solutions of the above examples, it also has the following solution: a second slot 14 is provided on the upper surface of the end of the mounting rod 10 away from the support plate 6, and a stabilizing rod 15 is inserted and installed between the second slots 14 on the two mounting rods 10.

[0035] By setting a stabilizing bar 15, the outermost end of the two mounting bars 10 can be made more stable.

[0036] Example 4: This example provides a lower protection device for high-altitude steel structure welding operations. In addition to the technical solutions of the above examples, it also has the following solution: a pull ring 16 is fixed to one end of the mounting rod 10 away from the support plate 6, and a pull rope 17 is fixed to the pull ring 16. A fixing block 18 is inserted and installed on the upper inner side of the H-beam 1. A pull ring 19 is fixed to the outer wall of the fixing block 18. The other end of the pull rope 17 is fixed to the pull ring 19. A fixing component for fixing to the H-beam 1 is provided on the fixing block 18.

[0037] Among them, the pull rope 17 can form a triangular structure between the outer end of the mounting rod 10 and the H-beam 1, making the overall structure of the mounting rod 10 more stable.

[0038] Example 5: This example provides a lower protective device for high-altitude steel structure welding operations. In addition to the technical solutions of the above embodiments, it also has the following solution, with the fixing components including:

[0039] The threaded groove 20 is located at the middle of the upper surface of the fixed block 18. The fixed block 18 has symmetrically distributed sliding grooves 21 that are perpendicular to the threaded groove 20. A knob 22 is threadedly connected inside the threaded groove 20. A limiting plate 24 is slidably installed inside the sliding groove 21. A sliding rod 23 is fixed to the inner side wall of the limiting plate 24, and the other end of the sliding rod 23 passes through the limiting plate 24 and extends into the inner cavity of the threaded groove 20.

[0040] When it is necessary to fix the fixing block 18 to the H-beam 1, turn the knob 22 downwards. The knob 22 moves downwards, and the bottom end of the knob 22 presses against the end of the slide bar 23 near the threaded groove 20, causing the slide bar 23 to move outwards. At this time, the slide bar 23 pushes the limiting plate 24 to move outwards and presses against the H-beam 1, thereby achieving fixation and preventing the fixing block 18 from slipping off the H-beam 1 after being pulled by the pull rope 17.

[0041] By setting the fixing components, the fixing block 18 can be effectively fixed to the H-beam 1, and the fixing block 18 can be quickly disassembled.

[0042] Example 6: This example provides a lower protection device for high-altitude steel structure welding operations. In addition to the technical solutions of the above examples, it also has the following solution: the bottom end of the knob 22 is a frustum-shaped structure, and the end of the slide rod 23 located inside the threaded groove 20 is an inclined structure.

[0043] When knob 22 is turned downwards, the bottom end of knob 22 will press against the slope of slide bar 23, causing slide bar 23 to slide away from the threaded groove 20.

[0044] Example 7: This example provides a lower protection device for high-altitude steel structure welding operations. In addition to the technical solutions of the above examples, it also has the following solution: the inner cavity of the slide 21 is provided with a spring 25 that is sleeved and cooperates with the slide rod 23. The two ends of the spring 25 are respectively fixed to the inner side wall of the limiting plate 24 and the inner wall of the slide 21.

[0045] When knob 22 is turned upwards, the bottom of knob 22 no longer presses against slide bar 23. After slide bar 23 loses the pressure from knob 22, it will slide towards the threaded groove 20 under the elastic action of spring 25, pulling limit plate 24 and slide bar 23. At this time, the fixing block 18 and H-beam 1 can be quickly disassembled from H-beam 1 because the friction between the limiting plate 24 is lost.

[0046] By incorporating spring 25, the limiting plate 24 can be reset, increasing the ease of installation and disassembly of this device.

[0047] Example 8: This example provides a lower protective device for high-altitude steel structure welding operations. In addition to the technical solutions of the above examples, it also has the following solution: the outer wall of the limiting plate 24 is provided with anti-slip texture.

[0048] By setting anti-slip texture on the outer wall of the limiting plate 24, the friction in the vertical direction can be increased when the limiting plate 24 comes into contact with the inner wall of the H-beam 1, thus preventing the fixing block 18 from slipping off the H-beam 1.

[0049] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A lower protective device for high-altitude steel structure welding operations, comprising two symmetrically arranged H-beams (1), characterized in that, The lower outer side of the H-beam (1) is symmetrically fitted with clamping blocks (2), and the two clamping blocks (2) are fixedly connected by bolts (3). The outer side wall of the clamping block (2) is fixed with a connecting block (4). The upper surface of the connecting block (4) is provided with a slot (5). The two slots (5) in the same row are fitted with a support plate (6). The support plate (6) is threaded with a knob (7) near the inner side of the H-beam (1). One end of the knob (7) is rotatably fitted with a suction cup (8), and the other side of the suction cup (8) is tightly fitted with the outer wall of the H-beam (1). The protective mechanism is set on one of the slots (5) and is used to protect the high-altitude steel structure during welding operations.

2. The lower protective device for high-altitude steel structure welding operations according to claim 1, characterized in that, The protective mechanism includes: two mounting rods (10) arranged in parallel and symmetrical arrangement; a locking block (9) is fixed to one end of the mounting rod (10) near the support plate (6); multiple evenly distributed positioning rings (11) are fixed to the four side walls of the mounting rod (10); protective ropes (12) are fixed to the two positioning rings (11) located at corresponding positions between the two mounting rods (10); and a protective net (13) is fixed directly above the multiple protective ropes (12).

3. The lower protective device for high-altitude steel structure welding operations according to claim 2, characterized in that, A slot 2 (14) is provided on the upper surface of the end of the mounting rod (10) away from the support plate (6), and a stabilizing rod (15) is inserted between the slots 2 (14) on the two mounting rods (10).

4. The lower protective device for high-altitude steel structure welding operations according to claim 2, characterized in that, The mounting rod (10) is fixed with a pull ring (16) at one end away from the support plate (6). A pull rope (17) is fixed on the pull ring (16). A fixing block (18) is inserted and installed on the upper inner side of the H-beam (1). A pull ring (19) is fixed on the outer wall of the fixing block (18). The other end of the pull rope (17) is fixed to the pull ring (19). A fixing component for fixing to the H-beam (1) is provided on the fixing block (18).

5. A lower protective device for high-altitude steel structure welding operations according to claim 4, characterized in that, The fixing component includes: a threaded groove (20), which is located at the middle of the upper surface of the fixing block (18). The fixing block (18) is symmetrically provided with sliding grooves (21) that are perpendicular to the threaded groove (20). A knob (22) is threadedly connected inside the threaded groove (20). A limiting plate (24) is slidably installed inside the sliding groove (21). A sliding rod (23) is fixed to the inner side wall of the limiting plate (24), and the other end of the sliding rod (23) passes through the limiting plate (24) and extends into the inner cavity of the threaded groove (20).

6. A lower protective device for high-altitude steel structure welding operations according to claim 5, characterized in that, The bottom of the knob (22) is truncated cone-shaped, and the end of the slide bar (23) located inside the threaded groove (20) is inclined.

7. A lower protective device for high-altitude steel structure welding operations according to claim 6, characterized in that, The inner cavity of the slide groove (21) is provided with a spring (25) that is sleeved with the slide rod (23). The two ends of the spring (25) are fixed to the inner side wall of the limiting plate (24) and the inner wall of the slide groove (21), respectively.

8. A lower protective device for high-altitude steel structure welding operations according to claim 7, characterized in that, The outer wall of the limiting plate (24) is provided with anti-slip texture.

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