Air compressor having detachable structure

Abstract

An air compressor includes a piston slidably received in a cylinder housing, and a motor coupled to the piston for moving the piston relative to the cylinder housing in a reciprocating action, in order to generate pressurized air. A cover is detachably secured on top of the cylinder housing, and includes an outlet tube having a compartment communicating with the cylinder housing, for receiving pressurized air from the cylinder housing, and includes an inlet blocked by a check valve device. The cover may be adjusted and secured to the cylinder housing, to adjust the inlet to different position relative to the cylinder housing, and to prevent the inlet from being blocked by objects.

1 . An air compressor comprising: 
 a cylinder housing including a chamber formed therein, and defined by a peripheral wall,    a piston slidably received in said chamber of said cylinder housing, and having a piston rod extended therefrom,    a motor coupled to said piston rod, for moving said piston relative to said cylinder housing in a reciprocating action, in order to generate pressurized air, and    a cover detachably secured on top of said cylinder housing, and including an outlet tube having a compartment formed therein and communicating with said chamber of said cylinder housing, for receiving the pressurized air from said chamber of said cylinder housing, said outlet tube including a port extended therefrom, and communicating with said compartment of said outlet tube, for receiving the pressurized air from said compartment of said outlet tube.    
   
   
       2 . The air compressor as claimed in  claim 1 , wherein said cylinder housing includes at least two studs provided on an outer peripheral portion thereof, and said cover includes at least two ears formed therein and selectively aligned with said at least two studs of said cylinder housing, for receiving fasteners which adjustably secure said cover on top of said cylinder housing.  
   
   
       3 . The air compressor as claimed in  claim 1 , wherein said cover includes a check valve to control the inner air of said chamber of said cylinder housing to flow into said compartment of said outlet tube when said piston moves toward said cover, and to prevent the inner air from flowing out of said compartment of said outlet tube when said piston moves away from said cover.  
   
   
       4 . The air compressor as claimed in  claim 3 , wherein said outlet tube includes a valve seat provided therein, and said check valve is disposed in said outlet tube and engaged with said valve seat, to control the pressurized air to flow from said chamber of said cylinder housing into said compartment of said outlet tube, and to prevent the pressurized air from flowing backwardly from said compartment of said outlet tube into said chamber of said cylinder housing.  
   
   
       5 . The air compressor as claimed in  claim 1 , wherein said cover includes a valve device to control the outside air to flow into said chamber of said cylinder housing when said piston moves away from said cover, and to prevent the inner air from flowing out of said chamber of said cylinder housing through said valve device when said piston moves toward said cover.  
   
   
       6 . The air compressor as claimed in  claim 5 , wherein said cover includes an inlet formed therein, and said valve device is secured to said cover, for blocking said inlet of said cover, and for controlling the outside air to flow into said chamber of said cylinder housing.  
   
   
       7 . The air compressor as claimed in  claim 6 , wherein said cover includes a recess formed therein and communicating with said inlet thereof, for receiving said valve device.  
   
   
       8 . The air compressor as claimed in  claim 5 , wherein said cover includes a catch extended therefrom, said valve device includes a first end secured to said catch of said cover.  
   
   
       9 . The air compressor as claimed in  claim 1 , wherein said cover includes a peripheral slot formed therein, for receiving a sealing ring and for partially receiving said peripheral wall of said cylinder housing, and for making an air tight seal between said cover and said cylinder housing.  
   
   
       10 . The air compressor as claimed in  claim 1  further comprising a supporting base including a plate having an arm extended therefrom to support said cylinder housing, said motor being attached to said plate and including a spindle extended through said plate, and an eccentric member coupled to said spindle of said motor and having a pin extended therefrom and coupled to said piston rod, to move said piston relative to said cylinder housing in reciprocating action.  
   
   
       11 . The air compressor as claimed in  claim 10 , wherein said plate includes a gear rotatably attached thereto and rotatably attached to said plate with a shaft, said eccentric member is secured to said shaft and has said pin extended therefrom.  
   
   
       12 . The air compressor as claimed in  claim 1 , wherein said cylinder housing includes an open top, and said cover is detachably secured on top of said cylinder housing for enclosing and blocking said chamber of said cylinder housing.  
   
   
       13 . The air compressor as claimed in  claim 1 , wherein said cylinder housing includes an upper wall provided thereon for enclosing an upper portion of said chamber thereof, said upper wall includes a center opening formed therein and defined by a peripheral fence, and said cover is secured on top of said cylinder housing and includes amuck valve engaged into said compartment of said outlet tube and biased to engage with said peripheral fence, for controlling the inner air to flow from said chamber of said cylinder housing into said compartment of said outlet tube.  
   
   
       14 . The air compressor as claimed in  claim 13 , wherein said upper wall includes an inlet formed therein, and a valve device secured to said upper wall, for blocking said inlet of said upper wall, and for controlling the outside air to flow into said chamber of said cylinder housing.  
   
   
       15 . The air compressor as claimed in  claim 1 , wherein said piston includes a bore formed therein, and a valve device secured to said piston, for blocking said bore of said piston, and for controlling the outside air to flow into said chamber of said cylinder housing.  
   
   
       16 . The air compressor as claimed in  claim 1  further comprising a coupler coupled to said port of said outlet tube, and including a first duct, a second duct, and at least one third duct extended outwardly therefrom and communicating with said compartment of said outlet tube, for receiving the pressurized air from said compartment of said outlet tube, a pressure gauge attached to said first duct, a nozzle coupled to said second duct, and a valve attached to said at least one third duct.  
   
   
       17 . The air compressor as claimed in  claim 16 , wherein said coupler includes a hose coupled to said port of said outlet tube.