A cantilevered scaffold reinforcing device

Abstract

This utility model discloses a cantilever scaffolding reinforcement device, relating to the field of cantilever scaffolding reinforcement technology. It includes an I-beam main beam and U-bolts. Wooden beams are fitted with a clearance fit on both sides of the I-beam main beam. The U-bolts are positioned on the outer side of the I-beam main beam, with their inner walls abutting against the wooden beams on both sides. A cover plate is fitted onto the top of the U-bolt. The U-bolt is tightened and limited at the top of the I-beam main beam by a fastening nut. U-shaped limiting plates are provided at both ends of the cover plate to restrict rotation. These U-shaped limiting plates are used to tighten the U-bolts to the sides of the wooden beams, thus preventing the wooden beams from loosening. This utility model achieves a stable connection through a triple fastening mechanism: first, a torsion spring maintains the working posture of the U-shaped limiting plates; second, a washer in the groove increases the friction with the U-bolts; and third, limiting screws provide mechanical locking. This creates a rigid connection between the wooden beams and the U-bolts, effectively preventing the wooden beams from loosening and falling off, thus improving the safety and reliability of the cantilever structure.

Description

Technical Field

[0001] This utility model relates to the field of cantilever scaffolding reinforcement technology, and in particular to a cantilever scaffolding reinforcement device. Background Technology

[0002] Cantilevered members are a common type of load-bearing component in building structures. They are characterized by having one end fixed to the main structure and the other end suspended in the air, relying on the bending and shear resistance of the fixed end to bear external loads. These members are widely used in balconies, canopies, eaves, equipment platforms, and other building components, typically using steel (such as I-beams and channel steel) or reinforced concrete as the main materials. During construction, cantilevered members are often temporarily or permanently fixed to the main structure (such as I-beams) using U-bolts to transfer loads and ensure stability. However, because the cantilevered portion bears concentrated bending moments and shear forces, the reliability of the connection nodes is crucial. In practical engineering, to adjust elevation, buffer vibrations, or prevent direct metal-to-metal contact, wooden blocks are often inserted between the U-bolts and the I-beams as spacers.

[0003] However, existing technologies have significant drawbacks: due to their porous nature and low compressive strength, timber is prone to compression deformation, cracking, and even breakage under long-term dynamic loads (such as wind vibration and equipment operation vibration) or changes in environmental temperature and humidity, leading to the gradual loosening of the contact surface between the pad and the metal. Furthermore, the timber and the arc-shaped inner wall of the U-bolt are difficult to fit tightly together; when only the top bolt is tightened, the friction between them is insufficient, making slippage easy under horizontal loads. Especially in humid environments, the cyclic process of wood absorbing moisture and expanding, then drying and shrinking, further exacerbates the loosening of the connection, eventually causing the timber to detach, resulting in direct friction between the U-bolt and the I-beam. This not only generates noise but also weakens the connection rigidity and may even lead to safety hazards such as bolt loosening and component displacement.

[0004] To address the aforementioned problems, this utility model proposes a cantilevered scaffolding reinforcement device. Utility Model Content

[0005] To address the problems existing in the background technology, this utility model proposes a cantilevered scaffolding reinforcement device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cantilevered scaffolding reinforcement device, comprising an I-beam main beam and U-bolts, with timber squares fitted on both sides of the I-beam main beam with clearance, the U-bolts being positioned on the outer side of the I-beam main beam, the inner wall of the U-bolts abutting against the timber squares on both sides, a cover plate being fitted onto the top of the U-bolts, the U-bolts being pressed and limited to the top of the I-beam main beam by tightening nuts, and U-shaped limiting plates being provided at both ends of the cover plate for limiting rotation, the U-shaped limiting plates being used to tighten the U-bolts to both sides of the timber squares to prevent the timber squares from loosening.

[0007] The present invention is further configured such that a fixing seat is fixedly installed at both ends of the cover plate, a rotating shaft is coaxially rotatably installed on the fixing seat, an end cap is fixedly installed on both sides of the end of the cover plate, the two ends of the rotating shaft are rotatably connected to the corresponding end cap, a connecting block is fixedly installed between the fixing seat and the end cap on the outer side of the rotating shaft, and the two ends of the U-shaped limiting plate are respectively fixedly connected to the two corresponding connecting blocks.

[0008] The present invention is further configured such that torsion springs are fitted at both ends of the rotating shaft, one end of the torsion spring is fixedly connected to the end cover, and the other end of the torsion spring is fixedly connected to the adjacent connecting block.

[0009] The present invention is further provided that the U-shaped limiting plate is provided with grooves at the positions corresponding to the U-shaped bolts, and a gasket is fixedly installed inside the grooves.

[0010] The present invention is further configured such that limit holes are provided on both sides of the U-shaped limiting plate, and the limiting screw passes through the limiting holes and is drilled into the interior of the wooden block.

[0011] The present invention is further provided with an elastic pad layer fixedly provided on the lower surface of the cover plate. The elastic pad layer is made of rubber or polyurethane material and is used to enhance the friction and buffering effect between the cover plate and the I-beam main beam.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This cantilevered scaffolding reinforcement device utilizes U-bolts, timber, a cover plate, and a U-shaped limiting plate. The operational process includes: a torsion spring automatically retracts the U-shaped limiting plate; the cover plate is fitted onto the U-bolt and tightened; the U-shaped limiting plate rotates to its working position, bringing the washer into contact with the U-bolt; and a limiting screw passes through the limiting hole to lock the timber. A stable connection is achieved through a triple-fastening mechanism: first, the torsion spring maintains the working posture of the U-shaped limiting plate; second, the washer in the groove increases the friction with the U-bolt; and third, the limiting screw provides mechanical locking. This creates a rigid connection between the timber and the U-bolt, effectively preventing the timber from loosening and falling off, thus improving the safety and reliability of the cantilevered structure. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention;

[0017] Figure 3 This is a partial cross-sectional view of the present invention.

[0018] Figure 4This utility model Figure 3 Enlarged diagram of point A in the middle.

[0019] Reference numerals in the attached diagram: 1. I-beam main beam; 2. U-bolt; 3. Timber; 4. Cover plate; 5. U-shaped limiting plate; 6. Fixing seat; 7. Rotating shaft; 8. End cap; 9. Connecting block; 10. Torsion spring; 11. Washer; 12. Limiting hole; 13. Groove. Detailed Implementation

[0020] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0022] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a cantilevered scaffolding reinforcement device, comprising an I-beam main beam 1 and U-bolts 2. Wooden blocks 3 are spaced and fitted onto both sides of the I-beam main beam 1. The U-bolts 2 are positioned on the outer side of the I-beam main beam 1, with their inner walls abutting against the wooden blocks 3 on both sides. A cover plate 4 is fitted onto the top of the U-bolts 2, and the cover plate 4 is pressed and limited at the top of the I-beam main beam 1 by a fastening nut. An elastic pad is fixedly provided on the lower surface of the cover plate 4 to enhance the friction and buffering effect between the cover plate 4 and the I-beam main beam 1. The abutment between the inner wall of the U-bolt 2 and the wooden blocks 3 forms initial positioning, facilitating subsequent tightening.

[0024] Both ends of the cover plate 4 are equipped with U-shaped limiting plates 5 for rotatable positioning. The U-shaped limiting plates 5 are used to tighten the U-bolts 2 to both sides of the timber 3, thereby preventing the timber 3 from loosening. Specifically, each side of the U-shaped limiting plate 5 has a limiting hole 12, through which a limiting screw passes and is drilled into the timber 3. The U-shaped limiting plate 5 can be rotated and adjusted to accommodate timber 3 of different sizes; the limiting hole 12 and the limiting screw cooperate to form a rigid connection between the U-shaped limiting plate 5 and the timber 3, preventing the timber 3 from shifting or loosening under stress.

[0025] Both ends of the cover plate 4 are fixedly mounted with fixing seats 6, and a rotating shaft 7 is coaxially rotatably mounted on the fixing seats 6. End caps 8 are fixedly mounted on both sides of the end of the cover plate 4. The two ends of the rotating shaft 7 are rotatably connected to the corresponding end caps 8. Connecting blocks 9 are fixedly mounted on the outer side of the rotating shaft 7 between the fixing seats 6 and the end caps 8. The two ends of the U-shaped limiting plate 5 are fixedly connected to the two corresponding connecting blocks 9. The fixing seats 6 and end caps 8 provide stable support for the rotating shaft 7, ensuring smooth rotation of the U-shaped limiting plate 5; the connecting blocks 9 rigidly connect the U-shaped limiting plate 5 and the rotating shaft 7, ensuring uniform force transmission and avoiding local stress concentration.

[0026] In this embodiment of the invention: torsion springs 10 are fitted at both ends of the rotating shaft 7. One end of the torsion spring 10 is fixedly connected to the end cover 8, and the other end of the torsion spring 10 is fixedly connected to the adjacent connecting block 9. The torsion spring 10 provides an automatic return function, so that the U-shaped limiting plate 5 remains in a retracted state when not in operation, which is convenient for storage and transportation; at the same time, the preload of the torsion spring 10 can help the U-shaped limiting plate 5 maintain stability during installation.

[0027] In this embodiment of the present invention: grooves 13 are provided on the U-shaped limiting plate 5 at the positions corresponding to the U-bolts 2, and washers 11 are fixedly installed inside the grooves 13. The grooves 13 make the contact surfaces of the U-shaped limiting plate 5 and the U-bolts 2 fit more closely, improving the fastening effect; the washers 11 increase the coefficient of friction, preventing the U-bolts 2 from slipping under vibration or load.

[0028] Working principle:

[0029] In an unused state, such as Figure 3 As shown, the cover plate 4 uses the elastic action of the torsion spring 10 to make the U-shaped limiting plate 5 automatically return to its original position and stably store on the upper surface of the cover plate 4, ensuring that the overall structure of the device is compact and easy to store and transport.

[0030] During installation, the U-bolt 2 is fitted onto the outside of the I-beam main beam 1 and the timber 3, ensuring that the inner side of the U-bolt 2 is tightly against the outer wall of the timber 3. At this point, the U-bolt 2 deforms due to the internal support of the I-beam main beam 1 and the timber 3, causing both sides of the U-bolt 2 to expand outwards. The through holes on both sides of the cover plate 4 are aligned and fitted with the threaded sections of the U-bolt 2, ensuring that the lower end face of the cover plate 4 is completely flush with the upper end face of the I-beam main beam 1. Then, the fastening nuts are tightened, causing the U-bolt 2 to contract and tighten against both sides of the timber 3. At this point, the U-bolt 2 has not yet fully returned to its original shape, ensuring that the cover plate 4 is firmly pressed against the I-beam main beam 1. Next, the construction personnel need to manually rotate the U-shaped limiting plate 5. Its rotation axis is stably supported by the rotating shaft 7 within the fixed seat 6, while the end cap 8 ensures smooth rotation of the rotating shaft 7. Because the length of the U-shaped limiting plate 5 is designed, it completely avoids the top of the U-bolt 2 when rotating around the rotating shaft 7, preventing movement interference. When the U-shaped limiting plate 5 rotates to the working position, the washer 11 in its inner groove 13 forms a surface contact with the outer wall of the U-bolt 2, significantly improving the fastening effect by increasing the friction area. Finally, the limiting screw passes through the limiting holes 12 on both sides of the U-shaped limiting plate 5 and is screwed into the timber 3, further causing the U-bolt 2 to contract on both sides, thereby generating a continuous lateral clamping force on the timber 3 and completely eliminating the gap between the timber 3 and the I-beam main beam 1. This process achieves dynamic stability of the cantilever structure through the triple action of the torsion spring 10 preload, the friction-increasing effect of the washer 11, and the mechanical locking of the limiting screw.

[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A cantilevered scaffolding reinforcement device, comprising an I-beam main beam (1) and U-bolts (2), characterized in that: Both sides of the I-beam main beam (1) are fitted with timber (3) with a gap. U-bolts (2) are set on the outside of the I-beam main beam (1). The inner wall of the U-bolts (2) abuts against the timber (3) on both sides. A cover plate (4) is sleeved on the top of the U-bolts (2). The U-bolts (2) press the cover plate (4) to the top of the I-beam main beam (1) by tightening the nuts. Both ends of the cover plate (4) are equipped with U-shaped limiting plates (5) for limiting rotation. The U-shaped limiting plates (5) are used to tighten the U-bolts (2) to both sides of the timber (3) to prevent the timber (3) from loosening.

2. The cantilevered scaffolding reinforcement device according to claim 1, characterized in that: Both ends of the cover plate (4) are fixedly installed with a fixed seat (6), and a rotating shaft (7) is coaxially rotatably installed on the fixed seat (6). Both sides of the end of the cover plate (4) are fixedly installed with end caps (8). Both ends of the rotating shaft (7) are rotatably connected to the corresponding end caps (8). A connecting block (9) is fixedly installed between the fixed seat (6) and the end cap (8) on the outer side of the rotating shaft (7). The two ends of the U-shaped limiting plate (5) are fixedly connected to the two corresponding connecting blocks (9).

3. The cantilevered scaffolding reinforcement device according to claim 2, characterized in that: Both ends of the rotating shaft (7) are fitted with torsion springs (10). One end of the torsion spring (10) is fixed to the end cover (8), and the other end of the torsion spring (10) is fixed to the adjacent connecting block (9).

4. The cantilevered scaffolding reinforcement device according to claim 1, characterized in that: The U-shaped limiting plate (5) is provided with grooves (13) at the positions corresponding to the U-shaped bolts (2), and a gasket (11) is fixedly installed inside the grooves (13).

5. The cantilevered scaffolding reinforcement device according to claim 1, characterized in that: The U-shaped limiting plate (5) has limiting holes (12) on both sides, and the limiting screw passes through the limiting holes (12) and is drilled into the wood (3).

6. The cantilevered scaffolding reinforcement device according to claim 1, characterized in that: An elastic pad is fixedly provided on the lower surface of the cover plate (4) to enhance the friction and buffering effect between the cover plate (4) and the I-beam main beam (1).

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