Cantilever I-steel cable-stayed steel wire rope safety device
By combining pre-embedded connecting components and U-shaped pull rings, the problem of unstable connection of inclined steel wire ropes for cantilevered I-beams was solved, achieving a safe, reliable, and reusable connection effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NO 1 CONSTR ENG CO LTD OF CHINA CONSTR THIRD ENG BUREAU CO LTD
- Filing Date
- 2025-04-09
- Publication Date
- 2026-04-17
AI Technical Summary
The existing method of connecting the inclined steel wire rope of the cantilevered I-beam has problems such as easy welding failure, significant safety hazards, unstable steel wire rope connection after tightening with U-bolts, affecting the clamping effect, and difficulty in dismantling.
The system employs a combination structure of pre-embedded connecting components, U-shaped pull rings, steel pressure plates, and locking devices. The vertical rods of the U-shaped pull rings clamp the two sides of the cantilevered I-beam, while the second horizontal rod and the steel pressure plate clamp the upper and lower ends of the cantilevered I-beam. The locking devices secure the steel pressure plate, thus achieving a safe and reliable connection.
The structural strength and rigidity of the U-shaped pull ring are improved, ensuring a stable connection between the wire rope and the I-beam, preventing loosening, and allowing for reuse, thus reducing the difficulty of installation and disassembly and safety hazards.
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Figure CN224133974U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building construction technology, specifically relating to a safety insurance device for a cantilevered I-beam inclined steel wire rope. Background Technology
[0002] Currently, there are two main methods for connecting the wire rope to the cantilevered I-beam at construction sites. One method involves welding rebar ends or welding pull rings to the upper end of the I-beam, connecting the wire rope to the rebar ends or pull rings to achieve diagonal support. This method requires welding, and the welded joints are prone to detachment, posing a significant safety hazard. Furthermore, the welded rebar ends or pull rings need to be removed later by cutting, which is time-consuming and labor-intensive. The second method uses U-bolts to clamp the wire rope to the cantilever end of the I-beam. Compared to welding, this U-bolt method is safer and easier to reuse; however, tightening the U-bolts around the I-beam hinders the connection of the wire rope. Directly binding the wire rope to the U-bolt results in the wire rope binding point being partially between the U-bolt and the I-beam, reducing the contact area between the U-bolt and the I-beam, affecting the clamping effect. The U-bolts are also prone to loosening or swaying, posing a certain safety hazard. Therefore, a new safety device for the inclined wire rope of the cantilevered I-beam is needed to solve the above problems. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a safety insurance device for inclined wire ropes of cantilevered I-beams, which is reusable, cost-effective, and safe and reliable.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a safety device for a cantilevered I-beam inclined steel wire rope, comprising: a pre-embedded connecting assembly, a steel wire rope, a U-shaped pull ring, a steel pressure plate, and a locking component; the cantilevered I-beam includes a cantilever end and a fixed end, the fixed end of the cantilevered I-beam being anchored to a concrete structure; the pre-embedded connecting assembly is anchored to the concrete structure above the cantilevered I-beam; the U-shaped pull ring includes a first horizontal bar, a second horizontal bar, and two vertical bars; each end of the first horizontal bar is connected to one of the vertical bars, forming a U-shaped structure; the second horizontal bar is connected to... The first horizontal bar maintains a distance, and the two ends of the second horizontal bar are respectively fixedly connected to the opposite sides of the two vertical bars to support the two vertical bars; the steel pressure plate is provided with at least two through holes, and the two vertical bars pass through the two through holes respectively; the second horizontal bar is located between the steel pressure plate and the first horizontal bar; the second horizontal bar and the steel pressure plate are respectively clamped at the upper and lower ends of the cantilevered I-beam; the locking member is connected to the vertical bar to lock and fix the steel pressure plate; one end of the wire rope is connected to the pre-embedded connecting assembly, and the other end is connected to the first horizontal bar.
[0005] Furthermore, the locking element includes a nut and a threaded section on the vertical rod that is threadedly engaged with the nut; the nut abuts against the end of the steel pressure plate opposite to the cantilevered I-beam.
[0006] Furthermore, the first horizontal bar and the two vertical bars are integrally formed; the two ends of the second horizontal bar are respectively welded and fixed to the two vertical bars.
[0007] Furthermore, the pre-embedded connection assembly includes a pre-embedded threaded sleeve, a double-eared rod, and a pin; the pre-embedded threaded sleeve is pre-embedded in the concrete structure, the double-eared rod is connected to the pre-embedded threaded sleeve, and the pin is inserted into the double-eared rod; one end of the wire rope is connected to the pin.
[0008] Furthermore, rope clips are provided at both ends of the wire rope.
[0009] Furthermore, the thickness of the steel pressure plate is greater than or equal to 10 mm.
[0010] Furthermore, the diameter of the first horizontal bar and the two vertical bars is greater than or equal to 20 mm.
[0011] The beneficial effects of this utility model are as follows: The two vertical rods of the U-shaped pull ring clamp the two sides of the cantilevered I-beam, and the upper and lower ends of the cantilevered I-beam are clamped together by the cooperation of the second horizontal rod and the steel pressure plate, achieving a good clamping effect. Furthermore, the second horizontal rod also supports and reinforces the two vertical rods, improving the structural strength and rigidity of the U-shaped pull ring. Since the first horizontal rod is located on the side of the second horizontal rod opposite to the cantilevered I-beam, and the first and second horizontal rods maintain a distance, when one end of the wire rope is tied to the first horizontal rod, the wire rope does not contact the cantilevered I-beam, thus not affecting the clamping effect of the U-shaped pull ring and ensuring high safety. In addition, the position of the U-shaped pull ring is adjustable, reusable, and can be produced in a standardized manner. This utility model also features a simple structure, high safety and reliability, and convenient installation and disassembly. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of the safety and insurance device for the inclined steel wire rope of the cantilevered I-beam of this utility model;
[0013] Figure 2 for Figure 1 A schematic diagram of the structure of the pre-embedded connection components;
[0014] Figure 3 for Figure 1 A schematic diagram of the structure of a U-shaped pull ring;
[0015] Figure 4 for Figure 1 A schematic diagram of the structure of the rope clamp for steel wire rope.
[0016] In the diagram: 1-Embedded threaded sleeve; 2-Double-eared lifting rod; 3-Pin; 4-Wire rope; 5-U-shaped pull ring; 51-First horizontal bar; 52-Second horizontal bar; 53-Vertical bar; 6-Steel pressure plate; 7-Nut; 8-Rope clamp. Detailed Implementation
[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0018] like Figures 1-4 The safety device for the inclined steel wire rope of the cantilevered I-beam shown includes a pre-embedded threaded sleeve 1, a double-eared rod 2, a pin 3, a steel wire rope 4, a U-shaped pull ring 5, a steel pressure plate 6, a nut 7, and a rope clamp 8. The double-eared rod 2 is connected and fixed within the concrete structure via the pre-embedded threaded sleeve 1. The U-shaped pull ring 5 is fixed to the cantilevered end of the cantilevered I-beam via the steel pressure plate 6 and bolts 7. The upper end of the steel wire rope 4 is connected to the double-eared rod 2 via the pin 3. Both ends of the pin 3 are connected to the double-eared rod 2, and both ends of the pin 3 are closed by the double-eared rod 2. The upper end of the steel wire rope 4 is fitted onto the pin 3, and the double-eared rod 2 restricts the displacement of the steel wire rope 4 on the pin 3. The lower end of the steel wire rope 4 is connected to the U-shaped pull ring 5, and both ends of the steel wire rope 4 are fixed with rope clamps 8.
[0019] like Figure 2 As shown, the pre-embedded threaded sleeve 1 is pre-embedded and fixed before the structural concrete is poured, and contains a square nut; after the concrete is poured and the strength is qualified, the double-eared hanger 2 is installed. The connection part between the double-eared hanger 2 and the pre-embedded threaded sleeve 1 is made of round steel with a diameter of 20mm, the end is threaded, and the exposed part is made of 45# steel. The ear plate of the double-eared hanger 2 is 12mm thick, and the pin hole of the ear plate is 21mm in diameter for the pin 3 to be inserted.
[0020] like Figure 3 As shown, the U-shaped pull ring includes a first horizontal bar 51, a second horizontal bar 52, and two vertical bars 53. The first horizontal bar 51 and the two vertical bars 53 are cold-bent from round steel with a diameter of 20mm. The two ends of the second horizontal bar 52 are welded and fixed to the two vertical bars 53. The diameter of the second horizontal bar 52 is greater than 10mm, and it maintains a distance from the first horizontal bar 51 so that the wire rope 4 can be tied to the first horizontal bar 51.
[0021] The steel pressure plate 6 has two through holes, through which two vertical rods 53 pass respectively; the second horizontal rod 52 and the steel pressure plate 6 are respectively clamped at the upper and lower ends of the cantilevered I-beam; the vertical rods 53 are provided with threaded sections, and at least two nuts 7 are threadedly fitted on the threaded sections of each vertical rod 53, with the nuts 7 pressing against the end of the steel pressure plate 6 facing away from the cantilevered I-beam.
[0022] After the cantilevered I-beam is installed, the U-shaped pull ring 5 is clamped and fixed to the cantilevered I-beam by the steel pressure plate 6, the second crossbar 52 and the nut 7. The steel pressure plate 6 is made of cast steel and has a thickness of 10mm.
[0023] like Figure 4 As shown, the wire rope 4 has a diameter of 16mm, and both ends are secured to the second crossbar 52 of the double-eared suspension rod 2 and the U-shaped pull ring 5 using rope clips 8.
[0024] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within its protection scope.
Claims
1. A cantilevered I-beam cable-stayed steel wire rope safety device, characterized by, include: The system includes a pre-embedded connecting assembly, a steel wire rope, a U-shaped pull ring, a steel pressure plate, and a locking component. The cantilevered I-beam includes a cantilever end and a fixed end, with the fixed end anchored to a concrete structure. The pre-embedded connecting assembly is anchored to the concrete structure above the cantilevered I-beam. The U-shaped pull ring includes a first horizontal bar, a second horizontal bar, and two vertical bars. Each end of the first horizontal bar is connected to one of the vertical bars, forming a U-shaped structure. The second horizontal bar maintains a distance from the first horizontal bar, and both ends of the second horizontal bar are fixedly connected to the opposing sides of the two vertical bars to support them. The steel pressure plate has at least two through holes, through which the two vertical bars pass. The second horizontal bar is located between the steel pressure plate and the first horizontal bar. The second horizontal bar and the steel pressure plate clamp the upper and lower ends of the cantilevered I-beam. The locking component is connected to the vertical bar to lock and fix the steel pressure plate. One end of the steel wire rope is connected to the pre-embedded connecting assembly, and the other end is connected to the first horizontal bar.
2. The cantilevered I-beam cable-stayed steel wire rope safety device according to claim 1, characterized in that, The locking element includes a nut and a threaded section on the vertical rod that is threadedly engaged with the nut; the nut abuts against the end of the steel pressure plate opposite to the cantilevered I-beam.
3. The safety device for the inclined steel wire rope of a cantilevered I-beam according to claim 1, characterized in that, The first horizontal bar and the two vertical bars are integrally formed; the two ends of the second horizontal bar are welded and fixed to the two vertical bars respectively.
4. The cantilevered I-beam cable-stayed steel wire rope safety device according to claim 1, characterized in that, The pre-embedded connection assembly includes a pre-embedded threaded sleeve, a double-eared hanger rod, and a pin; the pre-embedded threaded sleeve is pre-embedded in the concrete structure, the double-eared hanger rod is connected to the pre-embedded threaded sleeve, and the pin is inserted into the double-eared hanger rod; one end of the wire rope is connected to the pin.
5. The cantilevered I-beam cable-stayed wire rope safety device according to claim 1, characterized in that, The steel wire rope is equipped with rope clips at both ends.
6. The cantilevered I-beam cable-stayed wire rope safety device of claim 1, wherein, The thickness of the steel pressure plate is greater than or equal to 10 mm.
7. The cantilevered I-beam cable-stayed wire rope safety device according to claim 1, characterized in that, The diameter of the first horizontal bar and the two vertical bars is greater than or equal to 20 mm.