An integrated device for overhanging frame positioning and steel wire rope anti-dropping

CN224849587UActive Publication Date: 2026-10-13THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU
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Patent Information

Application Number
CN202522190553.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-16
Publication Date
2026-10-13
Estimated Expiration
2035-10-16

AI Technical Summary

Technical Problem

将定位钢筋及钢丝绳防脱钢筋分开使用,在操作时需要多个步骤,增加了安装和拆卸的难度,且防脱装置的可靠性较低、安装拆卸不便、缺乏有效的防脱机制

Benefits of technology

1)精准定位与防脱功能一体化:本实用新型将悬挑架的定位和钢丝绳防脱结合为一体,不仅提供精确的定位功能,还通过钢丝绳防脱设计,确保悬挑架在施工过程中稳定不移位,防止脱落,提高高空作业的安全性。

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an integrated device for overhanging frame positioning and steel wire rope anti -drop, include: locating rod, double -hole steel sheet and U -shaped ring, double -hole steel sheet sets up above I -steel, and its both sides extend to I -steel outside and is provided with a through -hole respectively, locating rod is welded on double -hole steel sheet upper surface, U -shaped ring is from I -steel below and is sleeved, and upper two end heads all are provided with outer thread, and go out from the through -hole of double -hole steel sheet upwards, the both sides wall of U -shaped ring and the both sides of I -steel upper and lower flange plate are opposite, and from both sides clamp tightly I -steel, and the both end heads of U -shaped ring going out double -hole steel sheet all are equipped with spring washer, and adopt and support nut and tighten and press double -hole steel sheet on I -steel above, and steel wire rope passes through the clearance of U -shaped ring and I -steel lower end and is connected with main part structure after looping I -steel. The utility model combines the positioning of overhanging frame and steel wire rope anti -drop as a whole, is convenient for installation and dismounting, and can be repeatedly used.
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Description

Technical Field

[0001] This utility model belongs to the field of building construction technology, and in particular relates to the construction operation of cantilever scaffolds and cantilever formwork, specifically an integrated device for positioning cantilever scaffolds and preventing wire ropes from slipping off. Background Technology

[0002] With the increasing demand for high-altitude operations in construction projects, cantilever scaffolds, as crucial support tools, are widely used in the construction and installation of aerial work platforms. In these operations, the precise positioning and safety of the cantilever scaffold uprights are paramount. Especially in high-rise building construction, cantilever scaffolds often need to operate in unstable or challenging environments, and they typically require connection to the main structure via steel wire ropes. To improve the positioning accuracy of the cantilever scaffold uprights and ensure the safety of the steel wire ropes acting on the cantilevered I-beams during construction, a device capable of precise positioning and effectively preventing wire rope detachment is needed.

[0003] In existing technologies, the positioning reinforcing bars and wire rope anti-derailment devices used on cantilevered I-beams are used separately, and both are welded reinforcing bars, making them unusable. The positioning reinforcing bars are typically welded directly to the I-beam to ensure the position of the cantilever frame uprights; while the wire rope is secured to the reinforcing bars welded to the lower part of the I-beam to prevent accidental detachment of the cantilever frame. Using the positioning reinforcing bars and wire rope anti-derailment reinforcing bars separately requires multiple steps during operation, increasing the difficulty of installation and disassembly. Furthermore, the anti-derailment devices have low reliability, are inconvenient to install and disassemble, and lack an effective anti-derailment mechanism. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated device for positioning a cantilever frame and preventing the wire rope from slipping off. This device integrates positioning and anti-slipping functions, improving operational safety and simplifying the operation process. Furthermore, the positioning and anti-slipping components are detachable and reusable. This utility model achieves its purpose through the following technical solution: An integrated device for positioning a cantilever frame and preventing the wire rope from slipping is disclosed. The cantilever end of the cantilever frame is provided with a horizontal I-beam. The wire rope is wrapped around the I-beam and connected to the main structure. The device includes: a positioning rod, a double-hole steel plate, a U-shaped ring, a nut, and a spring washer. The double-hole steel plate is located above the I-beam, with both sides extending outward to the outside of the I-beam and each having a through hole. The positioning rod is welded to the middle of the upper surface of the double-hole steel plate. The U-shaped ring has an upward opening and is inserted into the lower part of the I-beam with a gap between it and the lower end of the I-beam. Both ends of the upper part are provided with external threads and pass through the through holes of the double-hole steel plate. The two side walls of the U-shaped ring abut against the two sides of the upper and lower flanges of the I-beam, clamping the I-beam from both sides. Both ends of the U-shaped ring that pass through the double-hole steel plate are provided with spring washers and are tightened with matching nuts to press the double-hole steel plate tightly above the I-beam. The steel wire rope passes through the gap between the U-shaped ring and the lower end of the I-beam.

[0005] Furthermore, the double-hole steel plate is a rectangular steel plate with a thickness of 8~10mm.

[0006] Furthermore, the positioning rod is a steel pipe with a length of 10cm.

[0007] Furthermore, the U-shaped ring is formed by bending round steel.

[0008] Furthermore, the positioning rod corresponds to the position of the upright of the cantilever frame.

[0009] Furthermore, the wire rope passes through the gap between the U-shaped ring and the lower end of the I-beam, wraps around the I-beam, and then connects to the lifting ring that is pre-embedded on the main structure.

[0010] The advantages and beneficial effects of this utility model are: 1) Precise positioning and anti-detachment function in one: This utility model combines the positioning of the cantilever frame and the anti-detachment function of the wire rope into one. It not only provides precise positioning function, but also ensures that the cantilever frame is stable and does not shift during construction through the anti-detachment design of the wire rope, preventing it from falling and improving the safety of high-altitude operations.

[0011] 2) Easy installation and disassembly: The structure is lightweight and simple, making it easy to install and disassemble. It can quickly adjust and fix the cantilever frame, reducing construction time and improving work efficiency. It demonstrates high operability and efficiency in complex construction environments.

[0012] 3) High reusability: All major components can be disassembled and reinstalled, making them suitable for repeated use in multiple projects, reducing construction costs and improving resource utilization efficiency. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the overall structure of the device in use; where part A represents the location of the device. Figure 2 for Figure 1 A partially enlarged schematic diagram (part A); Figure 3 This is a schematic diagram of the main structure of the connection structure of the device of this utility model; Figure 4 This is a side view of the connection structure of the device of this utility model; Figure 5 This is a top view of the connection structure of the device of this utility model.

[0015] Figure label: 1. Positioning rod; 2. Double-hole steel plate; 3. U-shaped ring; 4. Nut; 5. Spring washer; 6. I-beam; 7. Steel wire rope; 8. Upright pole; 9. Lifting ring. Detailed Implementation

[0016] Example 1: like Figures 1-5 As shown, an integrated device for positioning a cantilever frame and preventing the wire rope from slipping is provided. The cantilever end of the cantilever frame is provided with a horizontal I-beam 6, and the wire rope 7 is wrapped around the I-beam 6 and connected to the main structure. The device includes: a positioning rod 1, a double-hole steel plate 2, a U-shaped ring 3, a nut 4 and a spring washer 5. The double-hole steel plate 2 is set above the I-beam 6, with its two sides extending outward to the outside of the I-beam 6 and each having a through hole; in this embodiment, the double-hole steel plate is made of 8-10mm thick steel plate, 15-20cm wide and 20-25cm long.

[0017] The positioning rod 1 is welded to the middle of the upper surface of the double-hole steel plate 2; after being assembled and installed on the cantilevered I-beam, it provides a stable positioning point for the upright 8. The positioning rod 1 corresponds to the position of the upright 8 of the cantilevered frame. In this embodiment, the positioning rod can be made of DN30 steel pipe with a length of 10cm.

[0018] The U-shaped ring 3 has an upward-facing opening and is inserted under the I-beam 6 with a gap between it and the lower end of the I-beam 6. Both ends of the upper part are threaded externally and protrude upwards through the through holes in the double-hole steel plate 2. The side walls of the U-shaped ring 3 abut against the sides of the upper and lower flanges of the I-beam 6, clamping the I-beam 6 from both sides to prevent displacement. Spring washers 5 are fitted at both ends of the U-shaped ring 3 protruding from the double-hole steel plate 2, and are tightened with matching nuts 4 to press the double-hole steel plate 2 firmly onto the I-beam 6. The spring washers provide additional tightening force to prevent the nuts from loosening due to vibration or long-term stress. The spring washers are located below the nuts and in contact with the double-hole steel plate, effectively improving the reliability of the connection.

[0019] The wire rope 7 passes through the gap between the U-shaped ring 3 and the lower end of the I-beam 6, wraps around the I-beam 6, and connects to the lifting ring 9, which is connected to the embedded part on the main structure. The wire rope is caught by the U-shaped ring, preventing it from sliding inward and achieving the effect of preventing it from falling off. In this embodiment, the U-shaped ring is made of ø12-ø14 round steel.

[0020] In general, the uprights of the cantilever scaffold must be aligned with the positioning rods and firmly rest on the I-beams. As the load gradually increases, the fixed position of the bottom U-shaped ring is locked, restricting its free movement and making the entire device a complete force-bearing system, further enhancing structural stability. At the same time, the wire rope, after wrapping around the I-beams, connects to the main structure and is cleverly caught at the bottom of the U-shaped ring, effectively preventing it from sliding inward, thus achieving a reliable anti-derailment function.

[0021] This invention integrates positioning and anti-detachment functions through a unified design, overcoming the shortcomings of traditional technologies that use separate positioning and anti-detachment devices. It effectively improves the positioning accuracy and safety of the cantilever frame, increasing construction efficiency. This invention has minimal impact on the I-beams, employing clamping fixation for non-destructive installation and convenient subsequent disassembly and reuse. Through its prefabricated fixing structure, it offers significant advantages in construction convenience, adjustability, safety, durability, and economy, overcoming the shortcomings of traditional methods and making it suitable for a wider range of construction scenarios, thus possessing high promotional value.

[0022] Finally, it should be noted that the above is only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the preferred arrangement, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model.

Claims

1. An integrated device for positioning a cantilever frame and preventing wire rope derailment, wherein a horizontal I-beam (6) is provided at the cantilever end of the cantilever frame, and a wire rope (7) is wound around the I-beam (6) and then connected to the main structure, characterized in that: The device includes: a positioning rod (1), a double-hole steel plate (2), a U-shaped ring (3), a nut (4), and a spring washer (5); The double-hole steel plate (2) is set above the I-beam (6), with its two sides extending outward to the outside of the I-beam (6) and each having a through hole; The positioning rod (1) is welded to the middle of the upper surface of the double-hole steel plate (2); The U-shaped ring (3) has an upward opening, is inserted from below the I-beam (6) and has a gap with the lower end of the I-beam (6); both ends of the upper part are provided with external threads and pass through the through hole of the double-hole steel plate (2); the two side walls of the U-shaped ring (3) abut against the two sides of the upper and lower flange plates of the I-beam (6) and clamp the I-beam (6) from both sides; both ends of the U-shaped ring (3) that pass through the double-hole steel plate (2) are provided with spring washers (5) and are tightened with matching nuts (4) to press the double-hole steel plate (2) above the I-beam (6); the wire rope (7) passes through the gap between the U-shaped ring (3) and the lower end of the I-beam (6).

2. The integrated device for positioning a cantilever frame and preventing the wire rope from slipping, as described in claim 1, is characterized in that: The double-hole steel plate (2) is a rectangular steel plate with a thickness of 8~10mm.

3. The integrated device for positioning a cantilever frame and preventing the wire rope from slipping, as described in claim 1, is characterized in that: The positioning rod (1) is a steel pipe with a length of 10cm.

4. The integrated device for positioning a cantilever frame and preventing the wire rope from slipping, as described in claim 1, is characterized in that: The U-shaped ring (3) is made by bending round steel.

5. The integrated device for positioning a cantilever frame and preventing the wire rope from slipping, as described in claim 1, is characterized in that: The positioning rod (1) corresponds to the position of the upright (8) of the cantilever frame.

6. The integrated device for positioning a cantilever frame and preventing the wire rope from slipping, as described in claim 1, is characterized in that: The wire rope (7) passes through the gap between the U-shaped ring (3) and the lower end of the I-beam (6), and after wrapping around the I-beam (6), it is connected to the lifting ring (9) that is pre-embedded on the main structure.