Water-proof ventilating fan

Water-proof ventilating fan

CN
  • CN 103,032,350 B
  • Filed: 10/08/2011
  • Issued: 02/11/2015
  • Est. Priority Date: 10/08/2011
  • Status: Active Grant
First Claim
Patent Images

1. a water-resistant fan, comprises fan drum and the blast fan be contained in fan drum and drive motor parts thereof, it is characterized in that:

  • Described fan drum is foursquare box body, and it comprises the fore shell box body and back cover box body that are assembled together;

    Wherein;

    The outward edge surrounding of the outer surface of fore shell box body (10) antetheca is provided with the outward flange (19) that a circle ledge width is 1-3 millimeter, height 2-4 millimeter, the square flange (18) that a ledge width is 1-3 millimeter, height 2-4 millimeter is also provided with in the inside of this outward flange, also be provided with in the inside of this flange (18) ledge width be 1-3 millimeter, height a little more than " ∏

    " shape inward flange (12) of flange (18), this inward flange (12) to extend internally suitable height from the internal surface of fore shell box body, the left and right sides wall of this inward flange (12) is provided with perpendicular and many louvre blades (13) be parallel to each other, the longitudinal section of every bar louvre blade comprises interconnective two sections, one section of the inside is horizontal segment (131), one section of outside is downward-sloping tilting section (132), and this inward flange (12) and many louvre blades (13) form a large venetian blind, from the sluicing frame (17) of an internal surface inwardly protruding rectangle of fore shell box portion front, this sluicing frame (17) comprises the large flange of " ∏

    " shape (171) slightly larger than " ∏

    " shape inward flange (12) and a water receiving disc (172) connected with the left and right side wall lower ends of the large flange of " ∏

    " shape (171), wherein the height of projection of the large flange of " ∏

    " shape (171) and the ear end face of fore shell box body are in same plane, the ear end face of the aspect ratio fore shell box body that water receiving disc (172) is protruding exceeds suitable height, and the ear end face of water receiving disc (172) is also connected with the vertical edge strip (173) that raises up, the outer surface of the fore shell box portion front surrounded at outward flange (19) and flange (18) is also provided with the interior threaded hole (112) of the following rubber washer of multiple assembling,Back cover box body (40) is the square shaped as frame of a center with an incircle through hole (411);

    The front-end face of back cover box body (40) is connected with the protruding little flange of " ∏

    " shape (47) by gusset, and this little flange (47) is slightly less than above-mentioned large flange (171);

    Also be provided with a little venetian blind (42) in the inside of little flange (47), each louvre blade in little venetian blind (42) turns forward respectively from behind;

    When fore shell box body (10) and back cover box body (40) are assembled together, this little venetian blind (42) is positioned at the top of above-mentioned water receiving disc (172);

    In little venetian blind (42), the circle centre position of above-mentioned incircle is provided with a small circular sleeve (48), this small circular sleeve (48) extends back and bottom (49) after being provided with, is also provided with an axle sleeve extended back (410) at the center of rear bottom (49);

    Aforesaid blast fan and drive motor parts (60) thereof are assemblied in axle sleeve (410) and go up and the incircle through hole (411) being arranged in back cover box body (40);

    Further,A protecting wire net (70), this protecting wire net (70) comprises the connecting tendon (72) of the plurality of concentric ring of connection that multiple concentric rings (71) of being made up of finer wire and two finer wires are made, and is respectively equipped with the small circle (73) of a plug-in mounting screw in the termination of connecting tendon (72);

    Three is assembled together through the interior threaded hole of the small circle (73) of connecting tendon termination of protecting wire net (70), the screw hole of back cover box body (40) corner and fore shell box body (10) corner with 4 long spiro nails (50) by above-mentioned protecting wire net (70), back cover box body (40) and fore shell box body (10) respectively successively;

    Further,A rubber washer (20), this rubber washer (20) is placed in the fore shell box portion front outer surface that outward flange (19) and flange (18) surround, its front surface is affixed with the inner plane for mounting (90), connect and tighten through for mounting (90), rubber washer (20) with the interior threaded hole on fore shell box body (10) antetheca by multiple short screw (30) again, drip-proof fan being installed appropriate.

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