Fire-proof roll type door for emergency evacuating for people

Fire-proof roll type door for emergency evacuating for people

  • CN 2,379,595 Y
  • Filed: 06/22/1999
  • Issued: 05/24/2000
  • Est. Priority Date: 06/22/1999
  • Status: Active Grant
First Claim
Patent Images

1. emergency evacuation fire resistance rolling shutter door, form by the flat little rolling door [2] of opening that fire resistance rolling shutter door [1] and emergency evacuation personnel use, describedly flat open little rolling door [2] and be installed on the above-mentioned fire resistance rolling shutter door [1] by build-up member, it is characterized in that, described flat each rolling slat of opening little rolling door [2] is gone up the concordant setting of corresponding rolling slat with above-mentioned fire resistance rolling shutter door [1] respectively, the termination cooperates top contact mutually separately, described build-up member is arranged on the extension spring among the described flat rolling slat inner chamber of opening each rolling slat inner chamber of little rolling door [2] and the fire resistance rolling shutter door on relative top [1] with it, the two ends of described each extension spring are fixedly installed on flat each rolling slat inner chamber and the fire resistance rolling shutter door [1] of opening little rolling door [2] respectively and go up in the corresponding rolling slat inner chamber, described flat opening in the rolling slat inner chamber of each rolling slat inner chamber of little rolling door [2] and corresponding with it fire resistance rolling shutter door [1], be respectively arranged with the supporting plate of highly mutually concordant support extension spring, the external diameter of described each extension spring is identical with the width of above-mentioned each rolling slat inner chamber, the outer round surface of each extension spring and each rolling slat inner chamber wall are adjacent to are slidingly matched, described each extension spring all is in the pretension state.

View all claims
    ×
    ×

    Thank you for your feedback

    ×
    ×