Smoke, fire blocker for air exhausting duct of kitchen and bathroom

Smoke, fire blocker for air exhausting duct of kitchen and bathroom

CN
  • CN 200,939,301 Y
  • Filed: 04/20/2006
  • Issued: 08/29/2007
  • Est. Priority Date: 04/20/2006
  • Status: Active Grant
First Claim
Patent Images

1. , house kitchen, toilet fire and smoke blocking device for ventilation duct comprise the fire prevention actuator, it is characterized in that:

  • End at this fire prevention actuator (1) is provided with the interface (2) that links to each other with room exhaust tube;

    Its other end is provided with a ring flange (3), and it links to each other with the sidewall of exhausting duct (4) and the jet draught unit (5) of Qi Nei;

    Fire prevention actuator (1) is provided with valve body (6), heat detector (7) is housed on it and is contained in its inner fuse link (8) and stage clip (19), the outer end (18) of heat detector (7) is placed in the bayonet socket (17) of a chuck (9), and chuck (9) is located by a latch (21) with regulating handle (10);

    Be provided with retaining fiery blade (11) in the valve body (6), be installed on the main shaft (12);

    Keep off the crosswind road (13) of fiery blade (11) positive alignment jet draught unit (5);

    Keep off fiery blade (11) and main shaft (12) is installed on the sidewall of jet draught unit (5) jointly;

    Respectively be provided with a block (20) on the two side;

    It is fixing that valve body (6) inner chamber of fire prevention actuator (1) is equipped with a torsionspring (16) and main shaft (12), keeps off fiery blade (11) and also fix with main shaft and rotate in 0~

    90 °

    scope;

    On the sidewall of exhausting duct (4), be positioned at below the valve body (6), be provided with an oil collection box (14).

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