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实用新型
CN202082439U 排油烟气防火止回阀 失效 - 权利终止

  • 专利标题： 排油烟气防火止回阀
  • 专利标题（英）： Oily fume-discharged.fire-prevention check valve
  • 申请号： CN201120081028.4
    申请日： 2011-03-25
  • 公开(公告)号： CN202082439U
    公开(公告)日： 2011-12-21
  • 发明人: 曹正祥 , 王启定 , 蒋绍中 , 杨建军
  • 申请人： 曹正祥 , 王启定
  • 申请人地址： 安徽省淮南市谢家集区谢李路莲花市场路口铁道北首二七风景小区3栋4单元10号
  • 专利权人： 曹正祥,王启定
  • 当前专利权人： 曹正祥,王启定
  • 当前专利权人地址： 安徽省淮南市谢家集区谢李路莲花市场路口铁道北首二七风景小区3栋4单元10号
  • 主分类号： F16K15/03
  • IPC分类号： F16K15/03 ;  F16K17/38 ;  F16K27/00
排油烟气防火止回阀
摘要：
本实用新型公开了一种排油烟气防火止回阀，包括圆筒形阀体及设置于体内的油烟通道和防火装置，阀体的两端分别设置为油烟通道的进风接口和出风阀口，阀片通过阀片转轴可转动地连接在出风阀口外口底部的阀体上。所述的阀片具有关闭状态和打开状态两个工作位置，关闭状态时阀片盖在出风口阀口的整体口部上，隔断油烟通道。打开状态时阀片在风的压力，是阀片通过出风阀口底部转轴转动向公共排气道开启。发生火灾时，阀体内的防火装置在扭簧弹力的作用下，强行将阀片关闭，有效阻止了火灾的蔓延。
摘要（英）：

The utility model discloses an oily fume-discharged fire-prevention check valve, which includes a cylindrical valve body and an oil smoke passage and a fire prevention device arranged in the valve body, wherein the two ends of the valve body are an air inlet interface and an air outlet valve port of the oil smoke passage; and a valve plate is rotatably connected to the valve body at the bottom of the outer port of the air outlet valve port through a valve plate rotating shaft. The valve plate has two working positions, namely, a close state and an open state, when in the close state, the valve plate is covered on the whole port part of the air outlet valve port, so as to block the oil smoke passage; when in the open state, the valve plate is opened toward a public exhaust passage through the rotation of the rotating shaft at the bottom of the air outlet valve port under wind pressure; and when an fire accident occurs, the fire prevention device in the valve body enforcedly closes the valve plate under the elastic force of a torsional spring, thereby effectively preventing the fire from spreading.

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