High-speed bridge widening construction safety protection device
By designing a safety protection device for high-speed bridge widening construction that includes a chain hoist and a suspender anchor, the problem of the protective platform being difficult to extend below the bridge deck during bridge widening construction was solved, achieving safety protection and flexible operation below the bridge web.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中建六局第四建设有限公司
- Filing Date
- 2025-04-22
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, during the widening construction of high-speed bridges, safety protection and work platforms are difficult to extend below the bridge deck, which cannot effectively protect construction personnel and equipment.
A safety protection device was designed, which includes a widened beam, a top support, an adjustment device, a lower support frame, a hanger anchoring device, and a chain hoisting device. The chain hoisting device is used to lift the protective work platform below the bridge web, and the hanger anchoring and adjustment device together ensure the stability and flexibility of the platform.
It achieves safety protection below the bridge web, reduces the risk of debris falling during drilling or rebar installation, provides a sufficiently rigid operating platform, and has a simple structure that allows it to move freely and adapt to different working surfaces.
Smart Images

Figure CN224314063U_ABST