Down rod hanger system of ceiling fan

Abstract

A down rod hanger system of a ceiling fan is disclosed. The down rod hanger system includes a down rod, a hanger ball, a hanger bracket that can be fixed to a pitched roof, and a canopy. The hanger ball is fixedly connected to the down rod. The hanger bracket has an accommodating groove to accommodate the hanger ball. The canopy is configured to cover an outside of the hanger bracket. The canopy has an aperture corresponding to an opening of the hanger bracket and the down rod. The canopy further has a guide hole extending downward from the aperture for the down rod to be displaced and extend out of the guide hole and the aperture. Through the arrangement of the guide hole, the ceiling fan can be mounted to a pitched roof with a certain angle of inclination and a larger angle of inclination.

1 . A down rod hanger system of a ceiling fan, the ceiling fan having a ceiling fan body, the down rod hanger system comprising:
 a down rod, having a first end and a second end, the first end being connected to the ceiling fan body, the down rod being arranged vertically;   a hanger ball, fixedly connected to the second end of the down rod;   a hanger bracket, fixed under a pitched roof, the hanger bracket including an accommodating groove, a positioning hole and a positioning screw, the hanger ball being pivotally connected in the accommodating groove, one side of the accommodating groove, close to the down rod, being provided with an opening corresponding to the hanger ball and the down rod, the down rod being pivotable relative to the opening through the hanger bracket and the hanger ball, the positioning hole being defined in a side wall of the accommodating groove of the hanger bracket corresponding to the hanger ball, the positioning hole corresponding to the positioning screw;   a canopy, fixedly connected to the hanger bracket, the canopy being configured to cover an outside of the hanger bracket, the canopy having an aperture corresponding to the opening and the down rod, the canopy further having a guide hole extending downward from the aperture, the guide hole corresponding to the down rod for the down rod to be displaced and extend out of the guide hole and the aperture;   wherein an outer wall of the hanger ball is recessed inwardly to form a groove, and the positioning hole and the positioning screw correspond to the groove, the guide hole and the aperture, allowing the hanger ball to be guided by the positioning screw and the groove, and wherein the hanger ball further comprises a first arc portion and a second arc portion, the direction of the first arc portion and the second arc portion corresponds to the direction of the groove, and an arc length of the first arc portion adjacent to the guide hole is less than that of the second arc portion;   wherein a bottom of the guide hole is provided with a support portion, the support portion is configured to abut against the down rod, the down rod has an axis;   wherein the hanger bracket further comprises a notch extending from the opening, and the notch corresponds to the groove, the down rod, and the support portion of the guide hole, allowing the support portion to abut against the down rod; and   wherein when the support portion abuts against the down rod, the included angle between the axis of the down rod and the pitched roof is not more than 150 degrees.   
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . The down rod hanger system of the ceiling fan as claimed in  claim 1 , wherein the guide hole is gradually reduced downward. 
     
     
         6 . The down rod hanger system of the ceiling fan as claimed in  claim 1 , wherein the hanger ball further has a protruding portion, the opening has a diameter less than that of the hanger ball for the protruding portion of the hanger ball and the down rod to extend out of the opening, the protruding portion of the hanger ball and the down rod extend out of the aperture. 
     
     
         7 . The down rod hanger system of the ceiling fan as claimed in  claim 1 , wherein the hanger bracket has a down rod opening corresponding to the down rod, the hanger bracket further has a hanger ball opening corresponding to the hanger ball, and the hanger ball opening is in communication with the opening through the down rod opening. 
     
     
         8 . The down rod hanger system of the ceiling fan as claimed in  claim 1 , wherein the second end of the down rod is radially formed with two opposite support holes, a support rod is insertedly connected to the support holes, the hanger ball has a through axial hole, the down rod is inserted through the axial hole, two opposite sides of a top edge of an inner wall of the axial hole are respectively recessed outwardly from top to bottom to form engaging grooves, the engaging grooves correspond to the support holes, two ends of the support rod are engaged in the engaging grooves respectively, an outer wall of the hanger ball is recessed inwardly to form a groove, the positioning hole and the positioning screw correspond to the groove, the guide hole and the aperture, and a side wall of the axial hole of the hanger ball is formed with a locking hole corresponding to the down rod for a down rod screw to secure the down rod. 
     
     
         9 . The down rod hanger system of the ceiling fan as claimed in  claim 1 , wherein two locking portions extend laterally from two sides of an upper edge of the hanger bracket, and the locking portions each have a first locking hole for the locking portions to be locked to the pitched roof.