PROBLEM TO BE SOLVED: To achieve efficient and quick collecting (sampling) work, and to achieve an appropriate aftertreatment by solving a defect such as causing waste of milk.SOLUTION: A milk sampling device includes: a milk container part 2 formed in a sealed structure, excluding a milk intake port part 3 and a milk take-out port part 4 provided on the bottom a non-return valve part 5 provided on the milk intake port part 3 an opening/closing mechanism part 6 having a ventilation port part 6h provided on the upper part of the milk container part 2, for communicating the outside with the inside, and an opening/closing valve part 6v capable of selectively opening/closing the ventilation port part 6h and a switching valve part 7 provided in the milk take-out port part 4, and capable of selectively switching to a first switching position P1 for blocking the milk take-out port part 4, a second switching position P2 for making it possible to suck air (outside air) A of a prescribed flow rate into the inside of the milk container part 2 or to take out milk M in the inside of the milk container part 2 to the outside, and a third switching position P3 for making the inside of the milk container part 2 connectable with a return port part 32 provided in a milk sending line Lm.COPYRIGHT: (C)2014,JPO&INPIT【課題】 能率的で迅速な採取(サンプリング)作業を実現するとともに、乳の無駄を招くなどの不具合を解消して適切な後処理を実現する。【解決手段】 乳取込口部3及び底部に有する乳取出口部4を除いて密閉構造に形成した乳容器部2と、乳取込口部3に設けた逆止弁部5と、乳容器部2の上部に設けた外部と内部を連通する通気口部6h及びこの通気口部6hを選択的に開閉可能な開閉弁部6vを有する開閉機構部6と、乳取出口部4に設け、この乳取出口部4を閉塞する第一切換位置P1,乳容器部2の内部に所定流量の空気(外気)Aを吸入可能又は乳容器部2の内部の乳Mを外部に取出可能にする第二切換位置P2,乳容器部2の内部を送乳ラインLmに設けた戻し口部32に対して接続可能にする第三切換位置P3にそれぞれ選択的に切換可能な切換弁部7とを備える。【選択図】 図1
