Municipal road foundation pit safety guardrail

By introducing a radial support structure of impact-resistant rods and a central positioning block, along with an adjustable rotating sleeve design, into the safety guardrails for foundation pits on municipal roads, the problem of insufficient impact resistance in existing guardrails has been solved, achieving higher protection effects and greater flexibility.

CN224549819UActive Publication Date: 2026-07-24HANGZHOU CITY INVESTMENT CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU CITY INVESTMENT CONSTR CO LTD
Filing Date
2025-08-27
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing safety guardrails for municipal road foundation pits lack effective blocking capabilities when subjected to collisions, especially in terms of protection for pedestrians and small non-motorized vehicles.

Method used

A safety guardrail for municipal road foundation pits was designed. It adopts an impact-resistant rod and a central positioning block to form a radial support structure. The hinge design of the rotating sleeve and the rotating rod allows the angle between adjacent guardrails to be adjusted. The length of the impact-resistant rod can be adjusted by the extension and retraction of the threaded rod to adapt to different foundation pit sizes. At the same time, the connection between the "X"-shaped reinforcing rod and the threaded hole block enhances the stability of the protective ring.

Benefits of technology

The guardrail has improved its impact resistance, effectively disperses collision forces, adapts to irregularly shaped pits, and does not affect the entry and exit of large equipment, providing greater safety and flexibility.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224549819U_ABST
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Abstract

The utility model relates to the technical field of guardrails, in particular to municipal road foundation pit safety guardrails, the guardrails are formed into closed-loop protection rings by a plurality of guardrail bodies through rotating members, the inner side of the guardrail body is provided with X-shaped reinforcing rods, a threaded hole block with internal threaded holes is installed in the center, a center positioning block is connected to one end of the impact-resistant rod, the other end is screwed with the threaded hole block through a threaded rod, a positioning hole is formed in the periphery of the center positioning block and is inserted with the impact-resistant rod, forming a geometric stable structure, and the bottom is placed on the base and fixed to the ground through bolts. The adjustable impact-resistant rod enhances the collision protection capacity for pedestrians and non-motor vehicles, the rotating member allows the guardrail body to adapt to the shape of the foundation pit, solves the problem of poor impact resistance of traditional fences and the inability to adapt to special-shaped foundation pits, and has the advantages of quick assembly and disassembly.
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