Fan shutter device

Abstract

A fan shutter device includes a frame, multiple slats and multiple sleeves. The frame has a first side and a second side, each of which is formed with multiple assembling channels, multiple fixing holes and multiple displacement slots. Each slat has two extension sections and a connection shaft. Each of two ends of the connection shaft is formed with a connection socket. Each sleeve has a pivot pin and a sleeve section. The pivot pin is assembled and connected in the connection socket. Multiple fixing members are respectively passed through the fixing holes to directly fix the sleeves so that the first and second sides are prevented from deforming in assembling process. The slats are spaced from the frame by a gap without abrading with or interfering with the frame. The extension sections are disposed in the displacement slots, which restrict the rotational angle of the slats.

What is claimed is: 
     
         1 . A fan shutter device for assembling with a fan, the fan shutter device comprising:
 a frame having a first side and a second side, an inlet and an outlet being respectively formed on two faces of the frame, each of the first and second sides being formed with multiple assembling channels, multiple fixing holes and multiple displacement slots;   multiple slats disposed between the inlet and the outlet, each slat having a connection shaft on one side, each of two ends of the connection shaft being formed with a connection socket; and   multiple sleeves, each sleeve having a pivot pin and a sleeve section, the pivot pin being assembled and connected in the connection socket, the sleeve sections being positioned in the assembling channels, multiple fixing members being respectively passed through the fixing holes and connected with the sleeve sections.   
     
     
         2 . The fan shutter device as claimed in  claim 1 , wherein a passage is formed between the inlet and the outlet and the slats are disposed in the passage. 
     
     
         3 . The fan shutter device as claimed in  claim 1 , wherein the fixing holes pass through the first and second sides in communication with the assembling channels. 
     
     
         4 . The fan shutter device as claimed in  claim 1 , wherein the fixing holes communicate with rear ends of the assembling grooves. 
     
     
         5 . The fan shutter device as claimed in  claim 1 , wherein the displacement slots are sector-shaped. 
     
     
         6 . The fan shutter device as claimed in  claim 5 , wherein each slat has two extension sections at two ends respectively, the extension sections being oppositely disposed in the displacement slots.