Patent Publication Number: US-2007101866-A1

Title: Air dehumidifying treatment device for air compressors

Description:
FIELD OF THE INVENTION  
      The present invention relates to an air dehumidifying treatment device for air compressor and the device includes several compartments communicating with each other so as to reduce humidity in the air.  
     BACKGROUND OF THE INVENTION  
      Some tools are powered by air which is compressed by a compressor and the pressurized air is introduced into hose connected to the tool so as to drive the tools. Generally, the air has a certain degree of humidity which might cause rust to the parts and/or short the circuit of the tools. In order to provide a good quality of the pressurized air, some compressors are cooperated with air dehumidifying treatment devices which cool the air and remove moisture from the air before being introduced into the tools. The conventional air dehumidifying treatment devices include a condenser and a filtering unit, both of which make the conventional air dehumidifying treatment device to be bulky and expensive.  
      The present invention intends to provide an air dehumidifying treatment device for an air compressor wherein the device includes at least two boards to define four compartments which are in communication with each other, and the air enters the compartment one by one to lower the humidity thereof.  
     SUMMARY OF THE INVENTION  
      The present invention relates to an air dehumidifying treatment device which comprises a case having a cruciform board set received therein and the board set is in contact with an inner periphery of the case so as to define a first compartment, a second compartment, a third compartment and a fourth compartment. The first compartment communicates with the second compartment from a lower position, the second compartment communicates with the third compartment from a higher position, the third compartment communicates with the fourth compartment from a lower position. Air is introduced into the first compartment and goes through the communication holes at different heights to reduce the humidity, and the air is then sucked out from eh fourth compartment.  
      The primary object of the present invention is to provide an air dehumidifying treatment device for air compressors, the air goes through compartments up and down to lower the humidity thereof.  
      The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
       FIG. 1  shows a perspective view of the air dehumidifying treatment device of the present invention;  
       FIG. 2  is an exploded view to show the board set in the air dehumidifying treatment device of the present invention;  
       FIG. 3  shows that air goes through compartments via holes in the board set;  
       FIG. 4  is a cross sectional view to show the holes in the board set;  
       FIG. 5  shows a perspective view of another embodiment of the air dehumidifying treatment device of the present invention, and  FIG. 6  is an exploded view to show the board set in the air dehumidifying treatment device in  FIG. 5  of the present invention. 
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT  
      Referring to FIGS.  1  to  4 , the air dehumidifying treatment device  10  for air compressors of the present invention comprises an enclosed case having a board set  20  received therein and the board set  20  is in contact with an inner periphery of the case. The board set  20  includes a first board  21  and a second board  22 , wherein the first board  21  and the second board  22  are perpendicular to each other so as to define a first compartment  101 , a second compartment  102 , a third compartment  103  and a fourth compartment  104 .  
      The first board  21  has a first slot  211  defined centrally from an underside thereof and the second board  22  has a second slot  221  defined centrally from a top thereof. The top of the second board  22  is inserted into the first slot  211  of the first board  21  and a top of the first board  21  is engaged with the second slot  221 . The first board  21  has a first hole  212  defined therethrough and located close to left of the top of the first board  21 . The second board  22  has a second hole  222  and a third hole  223  is defined therethrough and located close to an underside of the second board  22 . The first and second compartments  101 ,  102  are in communication with each other via the second hole  222 . The second and third compartments  102 ,  103  are in communication with each other via the first hole  222 . The third and fourth compartments  103 ,  104  are in communication with each other via the third hole  223 .  
      An inlet pipe  11  is in communicating with the first compartment  101  from a top of the case and an outlet pipe  12  is in communicating with the fourth compartment  104  from the top of the case. A first drain-pipe  13  and a second drain-pipe  130  are in communication with the third compartment  103  and the first compartment  101  via two respective lower portions of the case.  
      Air is introduced into the first compartment  101  via the inlet pipe  11  and goes up and down through the second compartment  102 , the third compartment  103  and the fourth compartment  104  via the second hole  222 , the first hole  212  and the third hole  223 . The humidity of the air is lowered and the condensed water left in the case drains out from the two drain-pipes  13 ,  130 . The air is then sucked via the outlet pipe  12  and provided to the tools which are not shown.  
      Referring to  FIGS. 5 and 6 , another embodiment of the air dehumidifying treatment device  10  comprises a case having a board set  20  received therein and the board set  20  is in contact with an inner periphery of the case. The board set  20  includes a first board  23 , a second board  24  and a third board  25 . The first board  21  has a first slot  231  defined centrally from an underside thereof and the second board  24  has a second slot  241  defined centrally from a top thereof and a third slot  242  defined centrally from an underside thereof. The third board  25  has a fourth slot  251  defined from a top thereof. The second board  24  is inserted into the fourth slot  251  of the third board  25  and a lower portion of the third board  25  is engaged with the third slot  242  of the second board  24 . The top of the second board  24  is inserted into the first slot  231  of the first board  23  and a top portion of the first board  23  is engaged with the second slot  241  of the second board  24 . By the arrangement, the board set  20  defines a first compartment  201 , a second compartment  202 , a third compartment  203 , a fourth compartment  204 , a fifth compartment  205 , and a sixth compartment  206 . A clamp angle of 60 degrees is defined between the first board  23 , the second board  24  and the third board  25 .  
      The first board  23  has a first hole  232  defined therethrough and located close to left of the top of the first board  21 . The first board  23  has a second hole  233  defined therethrough and located close to right of the underside of the first board  21 . The second board  24  has a third hole  243  defined therethrough and located close to left of the underside thereof. The third board  25  has a fourth hole  252  defined therethrough and located to left of the top thereof. The third board  25  has a fifth hole  253  defined therethrough and located to right of an underside thereof. The first and second compartments  201 ,  202  are in communication with each other via the second hole  233 . The second and third compartments  202 ,  203  are in communication with each other via the fourth hole  252 . The third and fourth compartments  203 ,  204  are in communication with each other via the third hole  243 . The fourth and fifth compartments  204 ,  205  are in communication with each other via the first hole  232 . The fifth and sixth compartments  205 ,  206  are in communication with each other via the fifth hole  253 .  
      An inlet pipe  11  is in communicating with the first compartment  201  from a top of the case and an outlet pipe  12  is in communicating with the sixth compartment  206  from the top of the case. A first drain-pipe  13  is in communication with the third compartment  203  via a lower portion of the case and a second drain-pipe  130  is in communication with the first compartment  201  via the lower portion of the case.  
      While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.