Steel fireproof door with protective structure

By connecting the supporting components with multiple rubber plates and sealing frames of the fire door structure, combined with the design of reinforcement plates and heat insulation plates, the problems of easy deformation and poor sealing of existing steel fire doors at high temperatures are solved, achieving higher fire resistance and structural stability.

CN224413485UActive Publication Date: 2026-06-26四川金标门窗有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
四川金标门窗有限公司
Filing Date
2025-07-31
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing steel fire doors have a simple fireproof and heat-insulating layer structure, which is prone to shrinkage and cracking under high temperatures. The connection between the door frame and the door leaf is also prone to deformation, resulting in a decrease in fireproof integrity and heat insulation, and allowing fire and smoke to escape easily.

Method used

The fire door is constructed using multiple rubber plates and sealing frames connected to the supporting components. Combined with the design of reinforcement plates and heat insulation plates, it is fixed by connecting screws to enhance sealing and stability. In addition, a heat insulation layer and heat insulation plate are installed inside the door for high-temperature protection.

Benefits of technology

It improves the sealing and stability of fire doors, reduces heat transfer at high temperatures, enhances fire resistance and structural stability, prevents door gaps from widening, and blocks the spread of fire and smoke.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224413485U_ABST
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Abstract

The utility model relates to steel fireproof door technical field especially is a kind of steel fireproof door with protective structure, including support assembly, support assembly upper end fixedly connected with fixed frame, the fixed frame front end fixedly connected with alarm and two warning lights, the alarm is located between two warning lights, support assembly inner frame wall is rotatably connected with fire door structure by connecting shaft, support assembly front end middle part is equipped with the frame of clamping, the fire door structure front end fixedly connected with fire retardant paint, the frame of clamping front end is connected with connecting screw rod with intercalation;Support assembly includes support frame, the support frame inner frame wall fixedly connected with seal frame, the support frame left frame wall middle part is fixedly connected with No. Rubber plate, the support frame front end is equipped with the clamping groove. A kind of steel fireproof door with protective structure of the utility model, through the support assembly and fire door structure of being set, the heat insulation fire protection of steel fireproof door can be conveniently protected.
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