防火门

The interlocking mechanism between the outer frame and the central beam solves the problem of increased gap caused by the expansion of the central beam in sliding fire doors, maintaining sealing performance and preventing flame leakage.

CN114263425BActive Publication Date: 2026-07-17DAIFUKU CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DAIFUKU CO LTD
Filing Date
2021-09-16
Publication Date
2026-07-17

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Abstract

防火门具备外框、门体、中梁，中梁被配置成，壁正交方向观察时与对象区域重叠，并且相对于对象区域在与壁体的一侧相反的一侧遍及第一框部和第二框部地沿宽度方向延伸，中梁和第一框部被互相固定，中梁和第二框部经由卡合机构被卡合，卡合机构构成为，允许中梁相对于第二框部的宽度方向的相对移动并且限制壁正交方向及滑动方向的相对移动。
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