Active pressure relief device for underground spaces

CN310047046SActive Publication Date: 2026-06-23HEBEI DADI CONSTR ENG TEST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Designs(China)
Current Assignee / Owner
HEBEI DADI CONSTR ENG TEST
Filing Date
2025-11-13
Publication Date
2026-06-23

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Abstract

1. Name of the product in this design: Active pressure relief device for underground space. 2. Application of this design: This application is for drainage and pressure relief in underground spaces. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.
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