Non-intrusive steel structure high-altitude installation temporary protective barrier device

By combining the adaptive clamping base with magnetic and mechanical locking, the problem of damage to steel structures and poor adaptability of existing guardrail devices is solved, achieving non-destructive installation and efficient dismantling, thus improving safety and stability.

CN121295938APending Publication Date: 2026-01-09THE THIRD CONSTR ENG CO LTD OF CHINA CONSTR SECOND ENG BUREAU +1
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Patent Information

Application Number
CN202511672518.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-14
Publication Date
2026-01-09

AI Technical Summary

Technical Problem

Existing guardrail devices cause serious damage to steel structures, have poor adaptability, and are cumbersome to install and dismantle, affecting project costs and schedules.

Method used

It adopts a non-invasive fixing method that combines an adaptive clamping base with magnetic and mechanical locking. The adaptive clamping base fits seamlessly with the surface of the steel component, and the magnetic and screw fasteners achieve dual locking, adapting to steel structures of different shapes.

Benefits of technology

It enables non-destructive installation and dismantling, improves the safety and stability of the device, adapts to various steel structure shapes, reduces damage to steel structures, and lowers project costs and construction period.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a non-intrusive type steel structure high-altitude installation temporary protective barrier device which comprises a self-adaptive clamping base which comprises a vertical clamping arm, a horizontal clamping arm vertically and fixedly arranged at one end of the vertical clamping arm and a bottom clamping arm installed at the other end of the vertical clamping arm in a hinged mode. The handrail unit is mounted on the vertical clamping arm; the locking system comprises an upper magnetic part, a lower magnetic part, a threaded cylinder and a screw rod, and the upper magnetic part is embedded in the bottom face of the horizontal clamping arm and used for being magnetically attracted to the steel component; the threaded barrel vertically penetrates through and is fixedly arranged on the bottom clamping arm, the screw rod is installed on the threaded barrel in a threaded mode, and the upper end of the screw rod extends out of the threaded barrel to be connected with the lower magnetic part and used for magnetically attracting the steel component; a rubber friction pad is further arranged on the bottom face of the horizontal clamping arm. Magnetic attraction fixing and screw mechanical locking are matched with each other, angle adjustment of the self-adaptive clamping base is achieved, and the safety performance of the handrail is guaranteed through double locking.
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Description

Technical Field

[0001] This invention relates to the technical field of high-altitude protection, and in particular to a non-intrusive steel structure temporary protective railing device for high-altitude installation. Background Technology

[0002] In steel structure construction projects, such as stadiums, bridges, and high-rise buildings, safety protection for high-altitude edge work is crucial. Currently, temporary guardrails are mostly fixed to the main steel structure by welding or bolting. These traditional methods have significant drawbacks: First, welding generates high temperatures, damaging the anti-corrosion coating of the steel structure (such as the galvanized layer), while bolt drilling directly weakens the load-bearing section of the steel structure itself—both of which are irreversible damages. Second, the installation process is cumbersome, requiring on-site drilling or welding, and the installation of a single span of guardrail is time-consuming and inefficient. Third, after removal, repair work such as repainting and welding is required at the original fixing points, increasing project costs and time.

[0003] The existing Chinese utility model application with application number CN202221571345.9 discloses a protective railing for steel structures used in high-altitude operations, including an I-beam. The front and rear sides of the upper surface of the I-beam are respectively attached to the lower surfaces of two pads. The center of the upper surface of the pads is welded to the bottom end of a threaded upright. The placement position of the top plate is positioned by a positioning pin and a positioning hole. Rotating the nut moves the top plate upward, thereby accommodating different widths of U-shaped channel steel. Two U-shaped channel steels are respectively installed on the left and right sides of the I-beam and connected to the upper surface of the top plate by fixing bolts, thereby fixing the I-beam to the top plate. At the same time, the threaded upright and the pads are fixed to the I-beam. This structure is simple to install, easy to disassemble, simple and practical, and can be effectively fixed to the I-beam on the steel structure.

[0004] While the above solutions can prevent damage to steel structures, the fixing methods are not suitable for curved or irregularly shaped steel components. Summary of the Invention

[0005] This invention provides a non-intrusive steel structure temporary protective railing installation device for high-altitude installation.

[0006] The technical problems to be solved are: the damage that existing guardrails cause to steel structures; and the limited adaptability and poor recyclability of steel structures.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This invention discloses a non-intrusive steel structure high-altitude temporary protective railing device, comprising: An adaptive clamping base for clamping onto the flange or side of a steel component includes a vertical clamping arm, a horizontal clamping arm vertically fixed to one end of the vertical clamping arm, and a bottom clamping arm hinged to the other end of the vertical clamping arm, the bottom clamping arm supporting 90° angle adjustment from vertical to horizontal toward the side where the horizontal clamping arm is mounted. The guardrail unit is installed on the vertical clamping arm; The locking system includes an upper magnetic component, a lower magnetic component, a threaded cylinder, and a screw. The upper magnetic component is embedded in the bottom surface of the horizontal clamping arm for magnetic attraction to the steel component. The threaded cylinder is vertically inserted and fixed to the bottom clamping arm. The screw is threaded onto the threaded cylinder, and the upper end of the screw extends out of the threaded cylinder and connects to the lower magnetic component for magnetic attraction to the steel component. The bottom surface of the horizontal clamping arm is also provided with a rubber friction pad.

[0008] The present invention discloses a non-intrusive steel structure high-altitude temporary protective railing device. Furthermore, the vertical clamping arm is fixedly provided with a mounting plate on the side opposite to the horizontal clamping arm, and the railing unit is connected to the mounting plate.

[0009] The present invention provides a non-intrusive steel structure high-altitude temporary protective railing device, wherein the mounting plate is located at the middle of the vertical clamping arm.

[0010] The present invention discloses a non-intrusive steel structure high-altitude temporary protective railing device. Further, the railing unit includes vertical members and protective ropes connecting adjacent vertical members, and the vertical members are connected to the mounting plate.

[0011] The present invention provides a non-intrusive steel structure high-altitude temporary protective railing device, wherein the vertical clamping arm, the horizontal clamping arm and the bottom clamping arm are plate-shaped structures.

[0012] The present invention provides a non-intrusive steel structure high-altitude temporary protective railing device, wherein the upper and lower magnetic components are strong magnetic strips.

[0013] This invention discloses a non-intrusive steel structure high-altitude temporary protective railing device. Further, the bottom clamping arm and the vertical clamping arm are connected by a hinge assembly. The hinge assembly includes a fixing block, a hinge shaft, and hinge sleeves. The hinge shaft is fixed to the vertical clamping arm by the fixing block. The hinge sleeves are respectively disposed on both sides of the fixing block and sleeved on the hinge shaft, rotating in cooperation with the hinge shaft. The hinge sleeves are fixed to the bottom clamping arm.

[0014] The present invention discloses a non-intrusive steel structure high-altitude temporary protective railing device. Furthermore, the hinge shaft and hinge sleeve are provided with mutually cooperating protrusions and grooves. Through the cooperation of the protrusions and grooves, the bottom clamping arm can be adjusted in an angle range from vertical to horizontal 90°.

[0015] The present invention discloses a non-intrusive steel structure high-altitude temporary protective railing device, wherein the vertical rod is connected to the horizontal clamping arm by a rib plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The device of this application is fixed to the surface of the steel component without damage by an adaptive clamping base, without the need for drilling or welding. It combines mechanical locking (screw fastener) and magnetic attraction for double locking to ensure safety and stability. 2. The magnetic fixing and screw mechanical locking of this application cooperate to achieve adaptive angle adjustment of the clamping base, and the double locking ensures the safety performance of the railing; 3. By installing the vertical members to the side of the vertical clamping arm, the horizontal clamping arm and the bottom clamping arm can share the force of the railing unit, and the horizontal clamping arm and the bottom clamping arm work together to improve safety performance.

[0017] The invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the installation structure of the steel component of the present invention, which is an I-beam. Figure 2 This is a schematic diagram of the installation structure of the steel component of the present invention having a rectangular cross-section; Figure 3 This is a schematic diagram of the adaptive clamping base state one structure of the present invention; Figure 4 This is a schematic diagram of the adaptive clamping base in state two of the present invention; Figure 5 This is a cross-sectional view of the locking system of the present invention; Figure 6 This is a schematic diagram of the installation of the magnetic component in this invention; Figure 7 This is a schematic diagram of the hinge assembly structure of the present invention.

[0019] Figure label: 1. Steel components; 2. Adaptive clamping base; 2.1. Vertical clamping arm; 2.2. Horizontal clamping arm; 2.3. Bottom clamping arm; 2.4. Mounting plate; 3. Guardrail unit; 3.1. Vertical rod; 4. Locking system; 4.1. Upper magnetic component; 4.2. Lower magnetic component; 4.3. Threaded cylinder; 4.4. Screw; 5. Hinge assembly; 5.1. Fixing block; 5.2. Hinge shaft; 5.3. Hinge sleeve; 5.4. Locking protrusion; 5.5. Locking groove. Detailed Implementation

[0020] like Figures 1-7As shown, this invention discloses a non-intrusive steel structure high-altitude temporary protective railing device, including an adaptive clamping base 2 for installation on a steel component 1, a railing unit 3 installed on the adaptive clamping base 2, and a locking system 4 for fixing the adaptive clamping base 2 to the steel component 1. The steel component 1 can be an I-beam, a rectangular section column, or an irregular steel structure with an angle of less than 90 degrees. When the steel component 1 is an I-beam, the adaptive clamping base 2 is clamped on the flange of the I-beam. When the steel component 1 is a rectangular section column or an irregular steel structure, the adaptive clamping base 2 is clamped on the side of the steel component 1.

[0021] The adaptive clamping base 2 includes a vertical clamping arm 2.1, a horizontal clamping arm 2.2, and a bottom clamping arm 2.3. The horizontal clamping arms 2.2 are respectively installed at opposite ends of the vertical clamping arms 2.1 and are fixedly connected to the vertical clamping arms 2.1. The bottom clamping arm 2.3 is hinged to the vertical clamping arms 2.1 and supports angle adjustment from vertical to horizontal within a 90° range towards the side where the horizontal clamping arms 2.2 are installed. The vertical clamping arms 2.1, horizontal clamping arms 2.2, and bottom clamping arms 2.3 are plate-shaped structures.

[0022] The guardrail unit 3 includes vertical members 3.1 and protective ropes connecting adjacent vertical members 3.1. A mounting plate 2.4 is fixed on the side of the vertical clamping arm 2.1 away from the horizontal clamping arm 2.2. The mounting plate 2.4 is located in the middle of the vertical clamping arm 2.1, and the vertical members 3.1 are connected to the mounting plate 2.4. Ribs are connected between the vertical members 3.1 and the horizontal clamping arm 2.2.

[0023] The locking system 4 includes an upper magnetic component 4.1, a lower magnetic component 4.2, a threaded cylinder 4.3, and a screw 4.4. The upper magnetic component 4.1 is embedded in the bottom surface of the horizontal clamping arm 2.2, and a rubber friction pad is provided on the bottom surface of the horizontal clamping arm 2.2 along the circumference of the upper magnetic component 4.1. The threaded cylinder 4.3 is vertically inserted and fixed on the bottom clamping arm 2.3. The screw 4.4 is threaded onto the threaded cylinder 4.3, and the upper end of the screw 4.4 extends out of the threaded cylinder 4.3 and connects to the lower magnetic component 4.2 for magnetic attraction onto the steel component 1. The upper magnetic component 4.1 and the lower magnetic component 4.2 are strong magnetic strips.

[0024] The bottom clamping arm 2.3 and the vertical clamping arm 2.1 are connected by a hinge assembly 5. The hinge assembly 5 includes a fixing block 5.1, a hinge shaft 5.2, and a hinge sleeve 5.3. The hinge shaft 5.2 is fixedly connected to the vertical clamping arm 2.1 through the fixing block 5.1, and the fixing block 5.1 is located in the middle of the hinge shaft 5.2. Two hinge sleeves 5.3 are provided, located on both sides of the fixing block 5.1 and sleeved on the hinge shaft 5.2, rotating with the hinge shaft 5.2. The hinge sleeve 5.3 is fixed on the bottom clamping arm 2.3. The hinge shaft 5.2 and the hinge sleeve 5.3 are provided with mutually cooperating protrusions 5.4 and grooves 5.5. Through the cooperation of the protrusions 5.4 and grooves 5.5, the bottom clamping arm 2.3 can be adjusted in an angle range from vertical to horizontal 90°. The protrusions 5.4 can be set on the hinge shaft 5.2 or the hinge sleeve 5.3, and the grooves 5.5 are correspondingly set on another structure.

[0025] When clamping the I-shaped steel component 1, the horizontal clamping arm 2.2 is attached to the top surface of the upper flange of the steel component 1 and fixed to the upper flange of the steel component 1 by the upper magnetic component 4.1. The bottom clamping part is rotated to be parallel to the horizontal clamping arm 2.2 and located at the bottom of the upper flange of the steel component 1. The screw 4.4 is rotated so that the lower magnetic component 4.2 is attracted to the bottom surface of the upper flange of the steel component 1, and the vertical clamping arm 2.1 is tightly clamped to the upper flange of the steel component 1 by the screw 4.4, so that the rubber friction pad is tightly attached to the surface of the upper flange, forming a friction pad. The sliding fixation system includes a magnetic module that provides initial fixing force with a pull-out force ≥500N, completing the first-level locking. The screw 4.4 module is then tightened to complete the second-level locking, with a pull-out force ≥1.2kN. Under load, the horizontal load is transmitted to the adaptive clamping base 2 through the vertical rod 3.1, resisted by the friction between the rubber friction pad and the surface of the steel component 1, as well as the magnetic attraction of the upper magnetic component 4.1. The vertical load is borne by the magnetic module and the threaded lock in the locking system 4, forming a double-insurance locking system 4 that is safe and reliable.

[0026] When dealing with a box-shaped steel component 1 with an inclination angle of less than or equal to 90 degrees, the horizontal clamping arm 2.2 is attached to the top surface of the steel component 1, and the bottom clamping part is rotated to match the inclination angle of the side of the steel component 1, and then adsorbed and clamped to the side of the steel component 1 by the locking system 4.

[0027] The device in this application is fixed to the surface of the steel component 1 without damage by the adaptive clamping base 2, without the need for drilling or welding. It combines mechanical locking (screw fastener) and magnetic attraction for double locking, ensuring safety and stability.

[0028] The magnetic fixing and the mechanical locking of the screw 4.4 work together to achieve adaptive angle adjustment of the clamping base 2, and the double locking ensures the safety performance of the railing.

[0029] By installing the vertical member 3.1 to the side of the vertical clamping arm, the horizontal clamping arm 2.2 and the bottom clamping arm 2.3 can jointly bear the force of the railing unit 3, and the horizontal clamping arm 2.2 and the bottom clamping arm 2.3 work together to improve safety performance.

[0030] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A non-intrusive steel structure high-altitude temporary protective railing device, characterized in that, include: An adaptive clamping base (2) for clamping on the flange or side of a steel member (1) includes a vertical clamping arm (2.1), a horizontal clamping arm (2.2) vertically fixed to one end of the vertical clamping arm (2.1), and a bottom clamping arm (2.3) hinged to the other end of the vertical clamping arm (2.1), the bottom clamping arm (2.3) supporting angle adjustment from vertical to horizontal 90° toward the side where the horizontal clamping arm (2.2) is mounted; The railing unit (3) is installed on the vertical clamping arm (2.1); The locking system (4) includes an upper magnetic component (4.1), a lower magnetic component (4.2), a threaded cylinder (4.3), and a screw (4.4). The upper magnetic component (4.1) is embedded in the bottom surface of the horizontal clamping arm (2.2) for magnetic attraction to the steel component (1). The threaded cylinder (4.3) is vertically inserted and fixed on the bottom clamping arm (2.3). The screw (4.4) is threaded onto the threaded cylinder (4.3). The upper end of the screw (4.4) extends out of the threaded cylinder (4.3) and connects to the lower magnetic component (4.2) for magnetic attraction to the steel component (1). The bottom surface of the horizontal clamping arm (2.2) is also provided with a rubber friction pad.

2. The non-intrusive steel structure high-altitude temporary protective railing device according to claim 1, characterized in that, The vertical clamping arm (2.1) is fixedly provided with a mounting plate (2.4) on the side opposite to the horizontal clamping arm (2.2), and the railing unit (3) is connected to the mounting plate (2.4).

3. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 1, characterized in that, The mounting plate (2.4) is located in the middle of the vertical clamping arm (2.1).

4. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 2, characterized in that, The railing unit (3) includes vertical bars (3.1) and protective ropes connected between adjacent vertical bars (3.1), the vertical bars (3.1) being connected to the mounting plate (2.4).

5. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 1, characterized in that, The vertical clamping arm (2.1), the horizontal clamping arm (2.2), and the bottom clamping arm (2.3) are plate-shaped structures.

6. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 1, characterized in that, The upper magnetic component (4.1) and the lower magnetic component (4.2) are strong magnetic strips.

7. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 1, characterized in that, The bottom clamping arm (2.3) and the vertical clamping arm (2.1) are connected by a hinge assembly (5). The hinge assembly (5) includes a fixing block (5.1), a hinge shaft (5.2), and a hinge sleeve (5.3). The hinge shaft (5.2) is fixed on the vertical clamping arm (2.1) by the fixing block (5.1). The hinge sleeve (5.3) is respectively disposed on both sides of the fixing block (5.1) and sleeved on the hinge shaft (5.2) and rotates with the hinge shaft (5.2). The hinge sleeve (5.3) is fixed on the bottom clamping arm (2.3).

8. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 7, characterized in that, The hinge shaft (5.2) and hinge sleeve (5.3) are provided with mutually cooperating protrusions (5.4) and slots (5.5). Through the cooperation of the protrusions (5.4) and slots (5.5), the bottom clamping arm (2.3) can be adjusted in an angle range of 90° from vertical to horizontal.

9. A non-intrusive steel structure high-altitude temporary protective railing device according to claim 4, characterized in that, A rib is connected between the vertical member (3.1) and the horizontal clamping arm (2.2).

Citation Information

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