Installing and fixing mechanism for a ceiling fan

An installing and fixing mechanism for a ceiling fan, which comprises:

• a first supporting member for fixedly connecting with a ceiling directly or indirectly, its longitudinal profile is of the shape of a bow, its raised portion is a planar portion to be joined directly or indirectly with the ceiling, the planar portion firstly slants respectively downward and toward two outer sides and then extends outward in a parallel manner, and
• a second supporting member to be joined with the first supporting member and to be fixedly connected with a motor of the ceiling fan;
• a portion of the second supporting member, which is fixedly connected with the motor of the ceiling fan, is a planar portion, outer sides of which respectively are two parallel extending portions,
• wherein an opening is respectively disposed on the two slanting portions of the first supporting member, along the transverse direction of the first supporting member, so that the corresponding parallel ends of the second supporting member can be respectively pass through the openings and laid on the first supporting member.