Detachable grease cup for smoke exhauster

Abstract

A smoke exhauster includes a housing having one or more orifices each for receiving an oil cup, and a catching device for catching the oil cup to the housing when the oil cup is moved upwardly relative to the housing, and to release the oil cup from the housing when the oil cup is moved upwardly relative to the housing again. The catching device includes a follower slidably received in a container, and a grasping device for grasping the follower to the container when the follower is moved upwardly relative to the container, and to release the follower from the container when the follower is moved upwardly relative to the container again. The housing has one or more windows for viewing the oil cups.

1 . A smoke exhauster comprising:
 a housing including at least one fan device provided therein for smoke drawing purpose, and including at least one orifice formed therein,   an oil cup engageable into said at least one orifice of said housing, and   means for catching said oil cup to said housing when said oil cup is moved upwardly relative to said housing, and to release said oil cup from said housing when said oil cup is moved upwardly relative to said housing again.   
   
   
       2 . The smoke exhauster as claimed in  claim 1 , wherein said catching means includes a container for attaching to said housing, a follower slidably received and engaged in said container, and means for grasping said follower to said container when said follower is moved upwardly relative to said container, and to release said follower from said container when said follower is moved upwardly relative to said container again. 
   
   
       3 . The smoke exhauster as claimed in  claim 2 , wherein said follower includes two sides each having a channel formed therein and defined by a guide member which includes a socket formed therein, and said grasping means includes two spring legs slidably engaged into said channels of said follower, and selectively receivable in said sockets of said guide members, for grasping said follower to said container. 
   
   
       4 . The smoke exhauster as claimed in  claim 3 , wherein said channels of said follower each includes an inverted Y-shaped structure having two passageways formed therein for slidably receiving and guiding said spring legs. 
   
   
       5 . The smoke exhauster as claimed in  claim 3 , wherein said guide members each includes a downwardly extended limb for engaging with and for guiding said spring legs to engage into said sockets of said guide members, and then to be disengaged from said sockets of said guide members. 
   
   
       6 . The smoke exhauster as claimed in  claim 5 , wherein said follower includes a stop extended from one of said sides thereof, and located below a first guide member of said guide members and opposite to said limb of said first guide member, and arranged to engage with said spring legs of said grasping means, and to guide said spring legs of said grasping means to engage into said sockets of said guide members. 
   
   
       7 . The smoke exhauster as claimed in  claim 2 , wherein said container includes a space formed therein for slidably receiving said follower therein, and a passage formed therein for engaging said grasping means into said space of said container. 
   
   
       8 . The smoke exhauster as claimed in  claim 7 , wherein said container includes a peg extended into said space thereof, and an arm extended into said passage thereof, for engaging with said grasping means, and for positioning and retaining said grasping means in said space of said container. 
   
   
       9 . The smoke exhauster as claimed in  claim 2 , wherein said oil cup includes at least one projection extended therefrom, and said follower includes two resilient pawls extended therefrom for engaging with said at least one projection of said oil cup, and for detachably retaining said oil cup to said receptacle. 
   
   
       10 . The smoke exhauster as claimed in  claim 9 , wherein said housing includes a casing provided therein for receiving and anchoring said container, and for engaging with and for forcing said resilient pawls of said follower to engage with said at least one projection of said oil cup. 
   
   
       11 . The smoke exhauster as claimed in  claim 10 , wherein said casing includes at least one cavity formed therein, said container includes at least one protrusion extended outwardly therefrom, for engaging with said at least one cavity of said casing, and for detachably anchoring said container to said casing. 
   
   
       12 . The smoke exhauster as claimed in  claim 10 , wherein said housing includes a receptacle provided therein and having a chamber formed therein and having an open bottom for allowing said oil cup to engage into said chamber via said open bottom of said receptacle. 
   
   
       13 . The smoke exhauster as claimed in  claim 12 , wherein said receptacle includes an opening formed therein for viewing said oil cup. 
   
   
       14 . The smoke exhauster as claimed in  claim 13 , wherein said housing includes an inner peripheral portion having at least one window provided therein, and aligned with said opening of said receptacle. 
   
   
       15 . The smoke exhauster as claimed in  claim 2 , wherein said catching means includes a spring element positioned between said follower and said container, for biasing said follower to move relative to said container. 
   
   
       16 . The smoke exhauster as claimed in  claim 15 , wherein said follower includes a hole formed therein for receiving said spring element. 
   
   
       17 . The smoke exhauster as claimed in  claim 16 , wherein said container includes a pole extended therefrom and engageable into said hole of said follower, for engaging with and for guiding said spring element. 
   
   
       18 . The smoke exhauster as claimed in  claim 2 , wherein said container includes a space formed therein and defined by an inner peripheral surface for slidably receiving said follower, and a groove formed therein and communicating with the space thereof, said follower includes a key extended therefrom and slidably engaged in said groove of said container, and for guiding said follower to move relative to said container.