Composite steel fireproof roller shutter door
Patent Information
- Authority / Receiving Office
- CN · China
- Current Assignee / Owner
- 山东安舜消防设备有限公司
- Publication Date
- 2020-01-17
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Abstract
Description
technical field
[0001] The invention relates to the technical field of fireproof rolling doors, more specifically, it relates to a composite steel fireproof rolling door. Background technique
[0002] Composite steel fire shutter doors are composed of double-layer steel curtain panels filled with fire protection materials. The curtain panels are all made of steel plates, and each unit of the curtain panel is formed by compounding two layers of steel plates, and the fire protection material is filled between the two layers of steel plates.
[0003] For example, the Chinese invention patent whose patent number is CN108533151A discloses a steel fireproof rolling door, including a rolling door, a frame, a reel, a guide rail, a door panel and a rotating shaft, a frame is installed on the front surface of the rolling door, and a reel is installed on the top of the rolling door. The middle part of the inner side is provided with a guide rail, the bottom of the shaft is fixedly con...