摘要 |
<p>A connecting device includes a bottom member (30a) with a periphery for attaching on a rotor of a motor, a circumferential wall (30b) which extends upwardly from the periphery, and a mounting arm (40) which has an anchored end (43) adapted for mounting the fan blade (50) thereon and an anchoring end (41) for anchoring on the bottom member (30a) such that the mounting arm (40) is oriented in a radial direction relative to the bottom member (30a) by guidance of a guiding member (411,321,44,34). A tightening member (411,321,45,35) is disposed to tighten the anchoring end (41) relative to the bottom member (30a) through a clamping force generated in a circumferential direction of the bottom member (30a) when the anchoring end (41) is pulled away from the bottom member (30a) in the radial direction. A retaining member (42) is disposed between the tightening member and the anchored end (43) in the radial direction, and has an engaging spring member (422) that abuts against the circumferential wall (30b) once the anchoring end (41) is moved away from the bottom member (30a). <IMAGE></p> |