| 摘要 |
PROBLEM TO BE SOLVED: To provide an intake hardly affected by upper water, capable of being installed even in a site of the shallow depth of water, and capable of preventing sedimented sand or the like from flowing in. SOLUTION: A horizontal flange-like training plate 3 is provided in an upper periphery of a cylindrical main body 2 connected to the intake 1. A cylindrical control wall 4 is provided in an upper face of the plate 3, a disk-like lid 5 is provided in an upper side of the plate 3 to have a space for intake with respect to the plate 3, and an annular flow-direction controlling ring 6 is provided between the plate 3 and the lid 5.
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