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提桶装置、绞盘及自动倒水桶
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02:35, 13 November 2015
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在一系列用绳子系着容器打水的装置中,最简易的形式是[[rope and bucket|绳子与水桶]]装置。改良的装置中有一个简易的绞盘,即,有手动绞车,用来提升杠杆效率,也因此可以提起更大的水桶。
通常而言,这种装置的出水量不足以用来灌溉,而主要用于供给家庭或家畜用水。但若用畜力(通常用牛)牵拉装置,则能打出足够的水用于灌溉,甚至
通常而言,这种装置的出水量不足以用来灌溉,而主要用于供给家庭或家畜用水。但若用畜力(通常用牛)牵拉装置,则能打出足够的水用于灌溉。
====选用双桶====
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