A new type of reinforced concrete pipe socket structure

By pre-embedding steel ring sockets and spigots in reinforced concrete pipes and setting water-swellable rubber rings and annular protrusions on their surfaces, the leakage problem at traditional reinforced concrete pipe connections is solved, achieving a high sealing performance and low-cost connection effect.

CN224414568UActive Publication Date: 2026-06-26JINAN URBAN CONSTRUCTION GROUP CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JINAN URBAN CONSTRUCTION GROUP CO LTD
Filing Date
2025-09-05
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Traditional reinforced concrete pipe joints suffer from poor water tightness and are prone to leakage. Furthermore, high-performance fluid concrete materials are expensive and not suitable for widespread application.

Method used

During the fabrication of reinforced concrete pipes, steel ring sockets and steel ring inserts are pre-embedded, and a water-swellable rubber ring is embedded on the outer surface of the steel ring insert. An annular convex strip is provided on the inner surface. The sealing performance is improved by the interlocking fit between the annular convex strip and the groove. Combined with the smooth stainless steel structure, the tightness of the connection is enhanced.

Benefits of technology

It improves the sealing and corrosion resistance of pipe connections, reduces manufacturing costs, solves leakage problems, and is suitable for widespread application.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of concrete pipeline construction, especially relates to a new -type reinforced concrete pipeline socket structure, including reinforced concrete pipe, one end of reinforced concrete pipe is embedded steel ring socket, the other end is embedded steel ring socket, and the inner end of steel ring socket and the inner end of steel ring socket are all welded together with the reinforcing steel bar in the reinforced concrete pipe, the outer surface of steel ring socket is equipped with a plurality of annular grooves, and rubber ring is embedded in the annular groove, and the inner surface of steel ring socket is equipped with the annular convex strip corresponding to the annular groove. The smooth stainless steel socket and socket greatly improve the sealing of connection, are not easy to leak, and the double rubber ring structure is arranged at the socket, further improves the closed water effect, improves the corrosion resistance of the interface, has low manufacturing cost and is suitable for universal application.
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