Water supply pipeline inspection opening anti-leakage structure

By combining bolt parallel insertion and annular sealing groove in the sealing design, the high material consumption and leakage risk of traditional water supply pipeline inspection port sealing structures are solved, achieving the effect of reducing material consumption and improving sealing performance.

CN224352641UActive Publication Date: 2026-06-12JI NAN CITY TAP WATER CORP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JI NAN CITY TAP WATER CORP
Filing Date
2025-08-27
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional water supply pipeline inspection port sealing structures suffer from high material consumption, uneven deformation leading to leakage risks, and frequent maintenance issues.

Method used

The design adopts parallel bolt insertion, eliminating the threaded hole on the connecting flange. The connection is achieved through nuts and bolts, and a combination sealing structure of annular sealing groove and sealing ring is set at the outer end of the connecting flange to enhance the sealing effect.

🎯Benefits of technology

It reduces material consumption, improves sealing performance, reduces maintenance frequency, and meets the requirements of lightweight design.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224352641U_ABST
    Figure CN224352641U_ABST
Patent Text Reader

Abstract

The utility model relates to a water supply pipeline inspection hole anti-leakage structure relates to water supply pipe sealing technical field, including the sealing pad and the cover plate of being located in the outer end of pipeline inspection hole connecting flange in proper order, sealing pad and cover plate are connected with connecting flan through bolt and nut, the outer edge position of connecting flan, sealing pad and cover plate is provided with a plurality of notches one by one, the notch is set as can supply bolt with the parallel pose of connecting flange axis, inserts to the direction close to connecting flange axis, and the head of bolt and nut respectively abut against the side of connecting flan and cover plate away from each other, the outer end middle part of connecting flan still is provided with annular sealing groove, the inner end of sealing pad still is provided with the sealing ring of abutting in sealing groove corresponding sealing groove. Through the parallel installation of notch guide bolt, it is convenient to operate and makes the flange thickness can thin, reduces material consumption, accords with the lightweight demand, and the outer end of connecting flan forms line - surface composite sealing with sealing pad, improves the overall sealing performance, reduces maintenance frequency.
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