Single-panel assembled electric double-leaf flood-prevention and protection sealed door
By combining a single-panel assembly design with a servo motor chain drive, the flood-proof and protective airtight door solves the problems of heavy weight, difficult transportation, and large space occupation of the opening and closing mechanism of traditional flood-proof and protective airtight doors, achieving lightweight and efficient drive, and ensuring sealing and reliability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGZHOU METRO DESIGN & RES INST CO LTD
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing flood-proof and airtight doors suffer from problems such as heavy weight, difficulty in transportation, and large space occupation by the opening and closing mechanism, which have not been effectively resolved.
Adopting a single-panel assembly design, the door leaf is spliced together from multiple panel modules, combined with an aluminum honeycomb sandwich structure. The drive system uses a servo motor and chain drive, and the locking system uses a helical bevel gear reducer, achieving modularity and lightweight design.
It significantly reduces the weight of the door leaf and the difficulty of transportation, reduces the space requirements of the opening and closing mechanism, improves sealing performance and operational reliability, and is suitable for engineering renovations with limited space.
Smart Images

Figure CN122407055A_ABST