High-airtightness door frame for intelligent armored door and processing equipment of high-airtightness door frame

By combining the three-step inner frame structure with compensating seals and using automated processing equipment, the problems of single sealing performance, easy attenuation, and low assembly efficiency of the intelligent armored door frame have been solved, achieving high airtightness and stability, and improving assembly accuracy and efficiency.

CN122106369APending Publication Date: 2026-05-29ZHEJIANG HUAWEI DOOR IND CO LTD
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Patent Information

Application Number
CN202610355026.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-23
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing intelligent armored doors have limited door frame sealing performance, which is prone to degradation and lacks dynamic compensation capabilities. The sealing strips are easily contaminated and damaged, and the assembly efficiency is low and the precision is difficult to guarantee.

Method used

The design combines a three-step inner frame structure with compensating seals to form a multi-stage stepped sealing system. It is also equipped with automated processing equipment, including a snap-fit ​​hydraulic cylinder, a limit cylinder, an inner frame horizontal limiter, and an inner frame vertical limiter, to achieve precise assembly.

Benefits of technology

This achieves long-term stable sealing performance of the high airtightness door frame, extends the service life of the sealing components, improves assembly efficiency and precision, and ensures assembly consistency in mass production.

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Abstract

The door frame comprises a high-air-tightness inner frame and a compensation sealing piece, the high-air-tightness inner frame is of a three-step-face inner frame structure, a hard sealing strip is arranged on the lower step face of the high-air-tightness inner frame, a soft sealing strip is arranged on the middle step face of the high-air-tightness inner frame, and the compensation sealing piece is arranged on the upper step face of the high-air-tightness inner frame; the compensation sealing piece is installed in the compensation recess in an elastic sliding mode through a spring, a dust blocking table is arranged above an opening of the compensation recess, and the opening is in a horn shape. The machining equipment comprises a machining platform, a clamping hydraulic cylinder, a limiting air cylinder, an inner frame horizontal limiting stopper and an inner frame vertical limiting stopper, the inner frame horizontal limiting stopper is provided with horizontal rolling wheels, and the inner frame vertical limiting stopper is provided with vertical rolling wheels. The three-step-surface inner frame and the compensation sealing piece form a multi-stage stepped sealing system, dynamic self-adaptive compensation is achieved, automatic precise assembly is completed in cooperation with special machining equipment, and the air tightness, long-term use stability and assembly efficiency of the door frame are remarkably improved.
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