Compressor pump for a sprayer

Abstract

A compressor pump for a sprayer comprises a pump, a piston and a connecting rod. The pump comprises a containment space, an opening formed at a bottom thereof and a plurality of through holes connected to the containment space at an upper portion thereof. The piston is disposed through the opening of the pump in the containment space, and the piston has a plurality of oil slots formed around an outer periphery, a sealing ring and an O ring jacketed onto the outer periphery, and an assembling portion with an internal thread formed inside of the piston. The elongated connecting rod has a connecting portion at each end respectively pivoted to a connecting member and a crank via respective axis hitches, such that the connecting member and the crank are capable of performing reciprocating (biased) movements at two ends of the connecting rod.

1 . A compressor pump for a sprayer comprising:
 a pump comprising a containment space, an opening formed at a bottom thereof and a plurality of through holes connected to the containment space at an upper portion thereof;   a piston disposed through the opening of the pump in the containment space, the piston having a plurality of oil slots formed around an outer periphery, a sealing ring and an O ring jacketed onto the outer periphery, and an assembling portion with an internal thread formed inside of the piston; and   an elongated connecting rod having a connecting portion at each end respectively pivoted to a connecting member and a crank via an axis hitch; a connecting end with an external thread corresponding to the assembling portion with the internal thread of the piston formed at another end of the connecting member; and another end of the crank pivoted to an activating member.