| 摘要 |
<p>A building type fan with adjusts air flow direction in inner-swinging manner, it fcomprising a cylindrical casing, a wind wheel and a motor provided within the casing. Said cylindrical casing is a jacket in the form of grilles within which is provided a guide means for directing air flow, a driving means and a gearing mechanism, wherein said guide means is swingly mounted within said cylindrical casing, the lower end thereof is connected to the gearing mechanism, through which the guide means is coupled to the output end of the driving means so as to swing back and forth for changing direction of the air flow supplied from said wind wheel. The direction of the air flow supplied from the fan can be changed within certain angular range by said guide mechanism, in the case of the main body of the fan not being swung. Accordingly, the arrangement of the building type fan in the present invention is less subject to space constraints, and the fan is constructed simply, used conveniently and has long service life.</p> |
