Metering pump

Abstract

The present invention relates to a metering pump for continuously feeding a predetermined amount of a fluid. The present invention uses a used tire as a compression member 200 b including a compression chamber 200 a for pumping fluid. Fluid may be continuously pumped in a unit of a predetermined amount by check valves v 1 and v 2 of a fluid introduction pipe 401 and a fluid discharge pipe connected to the compression chamber 200 a by a flexible operation of the compression member 200 b by performing a reciprocating motion for a shaft 305 connected to a crank 303 cooperating with a plurality of compression members 200 b by a drive motor in an axial direction of the compression member.

What is claimed is: 
     
         1 . A metering pump for feeding fluid comprising:
 a hollow compression member  200   b  manufactured by a rubber material which has flexibility and restoring ability, and sealing property;   upper/lower sealing members  204   a  and  204   b  coupled with an outer peripheral portion of the compression member  200   b  to seal a compression chamber;   a drive motor  300  including a drive shaft  301  axially supported by a support bridge and coupled with a crank  303  and a shaft  305  rotatably connected to the crank and the upper sealing member;   a fluid feeding pipe  400  including a fluid introduction pipe  401  and a fluid discharge pipe  402  connected to the lower sealing member  204   b;  and   check valves v 1  and v 2  coupled with the fluid introduction pipe and the fluid discharge pipe  402  to open a pipe passage so that fluid flows into or outward from the compression chamber  200   a.      
     
     
         2 . The metering pump of  claim 1 , wherein the drive motor  300  further comprises an angle crank  303  connected to drive shafts  301  of at least three drive motors to sequentially pump at least three compression members  200   b  and a shaft  305  connected between the angle crank and the upper sealing member  204   a.    
     
     
         3 . The metering pump of  claim 1 , wherein the compression member  200   b  comprises a used tire. 
     
     
         4 . The metering pump of  claim 1 , wherein the compression member  200   b  further comprises a guide part  205   a.    
     
     
         5 . The metering pump of  claim 4 , wherein the guide part  205   a  comprises an alignment shaft  206  having a predetermined length attached to a bottom surface of the upper sealing member  204   a;  
 a guide shaft  207  coupled with a surface of the lower sealing member  204   b  and including an axial hole  208  to slidably receive an outer diameter of the alignment shaft  206 ; and 
 a compression spring  205  coupled around the alignment shaft  206  and the guide shaft  207 .