Anti-jamming fire curtain

By employing bidirectional meshing transmission and guide limit design, the jamming problem of traditional fireproof roller shutters has been solved, enabling smooth lifting and rapid response of the roller shutter door, thus improving the operational stability of the fireproof roller shutter and the lifespan of the motor.

CN224351853UActive Publication Date: 2026-06-12JIANGSU XINGSHUN FIRE FIGHTING DOOR IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU XINGSHUN FIRE FIGHTING DOOR IND CO LTD
Filing Date
2025-09-05
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Traditional fireproof roller shutters suffer from unidirectional drive, resulting in uneven force on both ends of the roller shaft, which can easily cause jamming, affecting normal operating speed and shortening motor life.

⚗Method used

The roller shutter adopts a bidirectional meshing transmission structure. The second gears on both sides of the movable shaft mesh with the first gears at both ends of the roller shaft. This, combined with the intermediate transmission structure of the drive motor, enables synchronous rotation drive at both ends of the roller shaft. The guide limit part slides and limits the roller shutter door to prevent deviation.

🎯Benefits of technology

It enables smooth and stable lifting and lowering of roller shutters, avoids jamming, ensures rapid response to fires, improves operational stability and motor lifespan, and simplifies the maintenance process.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224351853U_ABST
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Abstract

The utility model relates to fireproof curtain technology field, concretely is a kind of anti-jamming fireproof curtain, including installation frame, installation frame is installed with roller shutter door and drive mechanism, the drive mechanism includes reel, and the roller shutter door is installed on reel, and reel is set in the inner cavity of installation frame by pivot swing, the drive mechanism further includes second gear, movable shaft and drive motor, meshing drive is formed by second gear of movable shaft both sides and the first gear of reel pivot both ends, and the intermediate transmission structure of transmission tooth, drive tooth is constituted by cooperation drive motor, the synchronous rotation drive of reel both ends is realized, compared with traditional one-way drive mode, the reel both ends stress imbalance problem is solved completely, make roller shutter door lifting process always keep smooth and smooth, effectively avoid the influence of jamming phenomenon to operating speed, ensure that fire can be responded quickly, accurate closure when occurring, provide reliable guarantee for personnel evacuation and fire control.
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