Electric fan

Abstract

An electric fan includes a base; a turbine fan fixed on the base; a housing installed on the base; a guide plate; a front cover in the front side of the housing; and an upper cap on top of the front cover. The turbine fan has a wind passage, a sloped guide surface, and two wind inlets in two sides. The housing has grid inlets facing the wind inlets of the turbine fan and a curved surface. The guide plate is fixed on the curved surface of the housing. The front cover has grid outlets and adjust leaves. When the turbine fan operates, air is sucked in through the grid inlets of the housing, the wind inlets and out of the wind outlets, guided by the sloped guide surface, the curved surface of the housing, blown out of the grid outlets of the front cover in changeable directions.

1 . An electric fan comprising: 
 a base;    a turbine fan fixed on said base and having a wind passage formed in an upper portion and a sloped guide surface extending up and rearward from said wind passage, said turbine fan further having a wind inlet respectively at two sidewalls;    a housing fixed on said base for surrounding said turbine fan and having plural grid holes respectively in two sidewalls to face said wind inlets of said turbine fan, said housing further having its rear side formed as a curved wall, said sloped guide surface of said turbine fan having its end edge resting under said curved wall;    a guide plate positioned on said curved sidewall and having its rear end resting on said curved wall;    a front cover positioned in the front side of said housing and having plural grid outlets and a set of adjust leaves screwed with an inner surface of said front cover; and,    an upper cap positioned to close on an upper side of said front cover.    
   
   
       2 . The electric fan as claimed in  claim 1 , wherein a motor and a turbine leaves are provided in said turbine fan, which has a combine post on a front surface.  
   
   
       3 . The electric fan as claimed in  claim 1 , wherein said housing further has plural combine posts near an upper portion of its inner surface.  
   
   
       4 . The electric fan as claimed in  claim 1 , wherein said guide plate further has plural screw holes facing said combine posts of said housing for screws to combine said guide plate with said housing.  
   
   
       5 . The electric fan as claimed in  claim 1 , wherein said set of adjust leaves is further provided with an adjust rod extending out of said grid outlets, and said front cover has a screw hole facing said combine post of said housing for a screw to combine said front cover with said housing, and a projection on an inner lower surface combined with said combine post on the front side of said turbine fan.