Passive opening of evacuation door from balanced level

CN309137787SActive Publication Date: 2025-02-25BEIJING INST OF ARCHITECTURAL DESIGN +1
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Patent Information

Application Number
CN202430391164.6
Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
Filing Date
2024-06-25
Publication Date
2025-02-25
Estimated Expiration
2039-06-25

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Abstract

1. The name of this design product: Passive self-balanced horizontal opening evacuation door. 2. Purpose of the product with this appearance design: It is installed on the ground. It can be used for ground passage in the closed state and can be used as the entrance and exit of the underground space in the open state. 3. The design key point of this appearance design product lies in the shape. 4. The picture or photo that best illustrates the design points: 2 stereoscopic images of changing states 1.
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