Valve structure with elastic anti-leakage member

A valve comprising:

• a spool comprising:
• a spool body;
• a spool shaft extended upwardly from the spool body;
• an upper elastic anti-leakage ring;
• a lower elastic anti-leakage ring;
• a vertical member;
• and
• an elastic anti-leakage member;
• wherein the spool defines two openings with a diversion port connecting the two openings, a fixing protrusion comprising an exterior of the diversion port, and an inner notch with the elastic anti-leakage member therein;
• and the upper elastic anti-leakage ring is located above the two openings;
• and the lower elastic anti-leakage ring is located below the two openings;
• a seat comprising:
• an inner chamber comprising an internal cavity wall;
• an inlet portion and an outlet portion disposed on a side of the seat;
• a top through hole formed at the top of the seat;
• wherein the spool is located inside the inner chamber;
• the inlet portion and the outlet portion corresponds to the diversion port;
• the upper elastic anti-leakage ring and the lower elastic anti-leakage ring abut the internal cavity wall;
• and the spool extends through the top through hole;
• and
• a switch comprising:
• a positioning hole and fixing hole located at the bottom of the switch, wherein the spool shaft is secured to the fixing hole;
• wherein the inner notch is defined by the spool body, the fixing protrusion, and the vertical member that extends from the diversion port to the spool body;
• an axis of the vertical member intersects the diversion port;
• the inner notch comprises a diversion port space on either side of the diversion port and a vertical member space on either side of the vertical member;
• the elastic anti-leakage member defines a recess that corresponds to the fixing protrusion and the vertical member;
• and the elastic anti-leakage member substantially fully occupies the inner notch and is secured by an interference fit.