Water supplement regulating structure of inlet valve

Abstract

A water supplement regulating structure of an inlet valve includes a regulating valve spool, a knob, and a water supplement hole formed on an inlet valve body and the regulating valve spool has a limber hole formed at the middle of the regulating valve spool and a conical plug disposed at a front end of the regulating valve spool, the conical plug is movably extended into the water supplement hole, and the regulating valve spool has an external thread and the knob has an internal thread and the knob and the regulating valve spool are screwed and coupled, so that the knob can be turned to drive the regulating valve spool to move back and forth axially with respect to the water supplement hole to adjust the gap between the conical plug and the water supplement hole so as to regulate the quantity of supplementary water.

What is claimed is: 
     
         1 . A water supplement regulating structure of an inlet valve, comprising a regulating valve spool, a knob, and a water supplement hole formed on an inlet valve body, characterized in that the regulating valve spool has a limber hole formed at the middle of the regulating valve spool, a conical plug disposed at a front end of the regulating valve spool and corresponding to the water supplement hole, and a front end of the conical plug is movably extended into the water supplement hole of the inlet valve body to form a gap with the water supplement hole, and the external periphery of a rear end of the conical plug is greater than the diameter of the water supplement hole, and the regulating valve spool has an external thread formed on an outer wall of the regulating valve spool, and the knob and the regulating valve spool are screwed and coupled and tunably mounted onto the water supplement hole of the inlet valve body, and the knob has an internal thread formed on an inner wall of the knob and corresponding to the external thread of the regulating valve spool. 
     
     
         2 . The water supplement regulating structure of an inlet valve according to  claim 1 , wherein the knob has a hook disposed at a front end of the knob, and a circular flange disposed on the water supplement hole of the inlet valve body and corresponding to the hook. 
     
     
         3 . The water supplement regulating structure of an inlet valve according to  claim 1 , wherein the knob has a limit bump disposed at a front end of the knob, a limit stair disposed on the water supplement hole of the inlet valve body and corresponding to the limit bump. 
     
     
         4 . The water supplement regulating structure of an inlet valve according to  claim 1 , wherein the knob has a plurality of protrusions disposed on an outer surface and separated apart from one another.