Prevent filling syringe needle of water clock

The utility model provides a prevent filling syringe needle of water clock, including last valve body, well valve body, lower valve body, valve cap, needle tubing, pneumatic syringe needle, go up external screw thread that the valve body lower extreme was equipped with with the internal thread that well valve body upper end recess was equipped with is joined in marriage soon, the high spot of wellvalve body lower extreme all is equipped with the internal thread with the recess of upper end, the internal thread of the high spot of well valve body lower extreme respectively with down the valvebody upper end the external screw thread the external screw thread of needle tubing upper end is joined in marriage soon, just the outside department of valve body is connected with pneumatic syringeneedle down, pneumatic syringe needle passes through the pipeline and is connected with the gas -liquid separation jar, gas -liquid separation jar upper end is equipped with the vacuum valve, needle tubing one end is connected