软管流量调节器/Hose flow regulator

找遍全网没有能快速调节大管径软管的流量调节器，自己画了一个，适配12mm±3的软管，方便握持在手中，快速准确地控制抽水的流量，快捷准确地吸鱼粪鱼屎，同时很好的避免吸鱼等情况。

公差已经标定好，除了软性材料都能适配。

需要其他管径可以自己调比例。打印滚轮建议立着打印，文件里平躺打印需要支撑，且用pla容易断裂

Looking for the whole network there is no flow regulator that can quickly adjust the large diameter hose, I drew one myself, suitable for 12mm±3 hose, easy to hold in the hand, quickly and accurately control the flow of pumping, fast and accurate suction of fish poop, while avoiding the situation of sucking fish.

Tolerances have been calibrated to fit all but the soft materials.

You can adjust the ratio if you need other pipe diameters. Printing roller is recommended to print standing up, lying down in the document needs support, and it is easy to break with pla