无盲角式关门顺序器

Non-blind angle type door closing sequencer

  • Inventors: SHICONG DONG
  • Assignees: 董士聪
  • Publication Date: October 22, 2003
  • Publication Number: CN-2581648-Y

Abstract

The utility model relates to a door closing sequencer of a non-blind angle type, and belongs to the product of the fire-fighting field. The utility model comprises a support frame which is arranged on a door frame of a fire door, and a linked long rocking arm and a short rocking arm which are hinged on the support frame, a baffle block which is arranged on the support frame to limit the inclination angles of the rocking arms, and rolling wheels which are hinged on the front extension ends of the long rocking arm and the short rocking arm. The utility model is characterized in that the utility model is also provided with a one-way folding type constant-expansion fin structure which is arranged on the leaf surface of the outside surface of the firstly closed door leaf of the fire door; the one-way folding type constant-expansion fin structure is composed of a mounting block which is fixedly connected with the door leaf, and a folding fin which is hinged with the mounting block; the folding fin extends out of the door leaf body; an elastic sheet is arranged between the folding fin and the mounting block, and the elastic sheet causes the folding fin to frequently be in the expansion state. The utility model effectively overcomes the phenomenon that any like instrument at home and abroad all has blind angle. The utility model can be widely used for double-leaf type fire doors or other double-leaf doors with various sequential closing requirements.
一种无盲角式关门顺序器,属消防领域产品。其构成包括安装在防火门门框上的支架,铰接于支架上的联动式长、短摇臂,设置在支架上的限制摇臂倾角的挡块,铰接在长、短摇臂前伸端滚轮,其特征是所述的关门顺序器还具有一个安装在防火门先关门扇的外边面扇面上的单向翻折式常张翼片结构,所述的单向翻折式常张翼片结构由固接在门扇上的安装块、铰接在该安装块上且伸在门扇本体外的翻折翼片构成,在所述的翻折翼片与安装块之间设有使翻折翼片常置于伸张状的弹性片。有效地克服了国内外任何一种类拟器械均存在的“盲角”现象。可广泛用于双扇式防火门或其它各种要求按顺序关闭的双扇门。

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