A high-sealing smoke exhaust duct

By using a sealing airbag and piston plate system at the connection of the exhaust duct, the problem of smoke leakage caused by the wear of the sealing ring is solved, achieving a highly efficient sealing effect and a convenient operation process.

CN224433800UActive Publication Date: 2026-06-30XIONGAN ZHONGKE ANZHU NEW MATERIAL TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIONGAN ZHONGKE ANZHU NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-08-20
Publication Date
2026-06-30

AI Technical Summary

Technical Problem

The sealing rings at the existing smoke exhaust pipe connections are prone to wear and tear after prolonged use, leading to smoke leakage and causing inconvenience.

Method used

The system employs a sealed airbag structure, inflating the airbag through a piston plate and inflation hose system to enhance the sealing effect at the connection point. The sealing position is fixed by a snap-fit ​​and slot structure.

Benefits of technology

It improves the sealing efficiency of the smoke exhaust pipe connection, has a simple and easy-to-operate structure, is easy to disassemble and install, enhances the sealing effect, and prevents smoke leakage.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224433800U_ABST
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Abstract

This utility model discloses a high-sealing smoke exhaust duct, relating to the field of smoke exhaust duct technology. The technical solution includes: a main duct, a connecting duct at the bottom of the main duct, the connecting duct being cylindrical, a sealing ring embedded at the bottom of the main duct and fitted around the outside of the connecting duct, a positioning ring fixedly connected to the top of the sealing ring, and a control mechanism located outside the connecting duct. The control mechanism is used to seal the connection between the main duct and the connecting duct. The control mechanism includes a sealing airbag embedded inside the positioning ring and fixedly fitted to the outside of the connecting duct. The control mechanism also includes multiple inflatable hoses. The beneficial effects of this utility model are: it greatly improves the sealing efficiency of the smoke exhaust duct connection; at the same time, the device has a simple structure, is easy for users to operate, and is simple and easy to understand, bringing great convenience to users.
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