Civil air defense engineering protection ventilation device

The design of the quick-assembly and stabilization mechanism solves the problems of long connection time and easy corrosion of traditional civil defense engineering protective ventilation devices, realizes the quick and stable connection of filter absorbers, and improves the convenience and safety of wartime replacement.

CN224397941UActive Publication Date: 2026-06-23JIANGSU JIANWEI PROTECTION ENG TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JIANWEI PROTECTION ENG TECH CO LTD
Filing Date
2025-08-08
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

The traditional method of connecting the filter absorbers of the protective ventilation devices in civil defense projects is time-consuming, with many bolt connection points that are prone to corrosion, affecting the convenience and safety of rapid replacement during wartime.

Method used

The filter box is quickly connected and stably fixed by adopting a quick-assembly and stabilization mechanism. It uses a top pin, spring tube and thread structure to reduce connection points, improve the tightness and stability of the connection and reduce the risk of corrosion.

Benefits of technology

It enables quick disassembly and stable connection of the filter absorber, reduces installation time, improves the convenience and safety of wartime replacement, and reduces the probability of corrosion.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224397941U_ABST
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Abstract

The utility model relates to the technical field of civil air defence engineering protection ventilation device, and disclose a civil air defence engineering protection ventilation device, including the filter case main part for filtering poison, the connecting disc fixedly connected two sides of filter case, the spring pipe of connecting disc outside setting and the pipeline of spring pipe one side intercommunication setting, filter case main part one side is provided with quick assembly and disassembly mechanism and stabilizing mechanism, stabilizing mechanism sets up quick assembly and disassembly mechanism one side, quick assembly and disassembly mechanism includes disc body, disc body fixedly connected at the pipeline one end, the side fixedly connected with annular seat of disc body away from filter case main part, the outer surface of annular seat is opened with switching groove, switching groove inside rotation is connected with control turntable, quick assembly and disassembly mechanism is used for quick connection filter absorber, and then makes the connecting work between the hands and feet complete, stabilizing mechanism is used for providing stable support and protection to quick assembly and disassembly mechanism, further promotes the smoothness of replacement.
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