A high-efficiency leak-proof sealing component for road and bridge expansion joints

By using modularly designed F-shaped side beams and splicing components, the complex transportation and installation of road and bridge expansion joint sealing components have been solved, enabling rapid installation and individual maintenance, improving maintenance efficiency and structural stability, and extending the service life of bridges.

CN224281014UActive Publication Date: 2026-05-26LIAOCHENG HUITONG BRIDGE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LIAOCHENG HUITONG BRIDGE CO LTD
Filing Date
2025-08-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing road and bridge expansion joint sealing components have large overall structural dimensions, are complex to transport and install, require the assistance of large equipment, and need to be completely disassembled and repaired when there is partial damage, resulting in a large amount of maintenance work, high costs and reduced efficiency.

Method used

The F-shaped side beams and splicing components with detachable splicing design, combined with auxiliary welding components, enable modular transportation and rapid installation, allow for individual replacement of damaged parts, and ensure vertical positioning and uniform spacing of anchor plates through limiting components, thereby improving welding accuracy and structural stability.

Benefits of technology

It reduces transportation and installation difficulties, improves maintenance efficiency, reduces maintenance workload and costs, shortens the construction cycle, enhances structural stability and service life, and reduces the risk of traffic disruption.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a high-efficiency, leak-proof sealing component for road and bridge expansion joints, belonging to the field of road and bridge construction technology. It addresses the problems of existing road and bridge expansion joint sealing components being limited by space constraints during transportation, difficult handling and loading / unloading, and the inability to individually disassemble and replace damaged sections. The component includes F-shaped side beams, splicing grooves, positioning holes, splicing components, and auxiliary welding components. Four splicing grooves are respectively opened inside the right end of four F-shaped side beams; four sets of positioning holes are respectively opened on the outside of four F-shaped side beams; four sets of splicing components are respectively disposed inside four F-shaped side beams; and the auxiliary welding components are located in front of the right-side F-shaped side beam. This invention enables splicing and modular maintenance of the F-shaped side beams, reducing transportation and installation difficulties and improving maintenance efficiency. The auxiliary welding components ensure the welding accuracy and spacing uniformity of the anchor plates, enhancing structural stability.
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