| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a liquid fertilizer mixing device holding the mixture ratio of a liquid fertilizer constant even when an amount of water varies. <P>SOLUTION: This liquid fertilizer mixing device 10 wherein the liquid fertilizer 38 sucked from a liquid fertilizer container to water 39 in a flow pathway is mixed with the water at a prescribed ratio, comprises a cylindrical body 10A provided with a joint part 14 fit to the openings of the flow pathway 13 and the liquid fertilizer container, and has the following structure: a throttle path 15 is formed at a midpoint of the flow pathway; a high-pressure introduction communicating pathway 20 is formed to openly communicate with an upper part space 33 of the liquid fertilizer container at an upper-stream-side flow pathway 13a so as to make the throttle path in-between; a liquid-suction path 21 openly communicating with a bottom part space 32 of the liquid fertilizer container toward a lower-stream-side flow pathway 13b is provided with a filter member 25 at its lower end part; an air-release communicating pathway 22 openly communicating with the upper part space 33 of the liquid fertilizer container; and an opening end part of the liquid fertilizer container at a joint part is provided with a water transmission means using a waveform washer 24 for introducing the water dropped down from the container side openings of the high-pressure introduction communicating pathway 20 and the air-release communicating pathway 22. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
