| 摘要 |
PROBLEM TO BE SOLVED: To provide a washing nozzle capable of enhancing a washing effect more without washing unevenness while preventing a fluid from flowing backward when washing an inner surface of a tubular member.SOLUTION: A washing nozzle includes a nozzle body 21 which has a supply path 211 for fluid inside, and a nozzle head 22 and a nozzle ring 23 externally fitted to the nozzle body in a freely detachable manner in order from a nozzle tip side, and has a jet slit 11 formed between the nozzle head and the nozzle ring in a nozzle circumferential direction so as to jet a fluid. The nozzle body is provided with a supply hole 212 for fluid communicating with the jet slit from a supply path at least at one place, the formation direction of the supply hole in a cross section perpendicular to a nozzle axis direction has an angle to a nozzle radius direction, and the opening diameter of the supply hole in a cross section perpendicular to the formation direction of the supply hole is larger in the nozzle axis direction than in a direction orthogonal to the nozzle axis direction. |
