A bridge tunnel renovation anti-falling safety device

By designing fall protection safety devices with crossbars and sliding components in bridge and tunnel renovation operations, the problem of limited movement range for construction workers on scaffolding was solved, enabling convenient use of safety ropes and efficient operation.

CN224363624UActive Publication Date: 2026-06-16ZHUHAI DA HENG QIN URBAN PUBLIC RESOURCES OPERATION & MGMT CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHUHAI DA HENG QIN URBAN PUBLIC RESOURCES OPERATION & MGMT CO
Filing Date
2025-07-21
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

During bridge and tunnel renovation work, when construction workers walk on scaffolding or carry materials, the safety ropes are fixed to the work platform, which restricts their range of movement and requires frequent unhooking and rehooking, making them inconvenient to use.

Method used

A fall protection safety device including a crossbar, a sliding component, and a connecting ring is designed. The connecting ring is set on the sliding component. After the safety rope's buckle is connected to the connecting ring, it can slide on the crossbar with the sliding component, increasing the range of motion. The position on the crossbar can be adjusted through a fixing structure to adapt to different scaffolding.

Benefits of technology

This reduces the frequency with which construction workers need to untie their safety ropes, and increases their range of movement and ease of use on the scaffolding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224363624U_ABST
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Abstract

The application provides a bridge and tunnel interior renovation anti-falling safety device, and relates to the technical field of bridge and tunnel interior renovation. The device comprises a horizontal rod, a plane of the horizontal rod, a sliding assembly movably arranged on the outer surface of the horizontal rod, a connecting ring arranged on the sliding assembly, a lock catch of a safety rope connected to the connecting ring, a fixing structure arranged on the outer surface of the horizontal rod, a sleeve movably arranged on the outer surface of the horizontal rod, a bottom end of a fourth fixing bolt threadedly connected to the top of the plane, and a mounting piece connected to the sleeve. The horizontal rod, the sliding assembly and the connecting ring are arranged. The connecting ring is arranged on the sliding assembly, and the sliding assembly can move on the horizontal rod. When the lock catch of the safety rope is connected to the connecting ring, the safety rope can slide on the horizontal rod along with the sliding assembly when the construction personnel moves on the scaffold working platform. The activity range of the working personnel is improved, the frequency of unfastening the safety rope when the working personnel works is reduced, and the device is more convenient to use.
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