PROBLEM TO BE SOLVED: To provide an imaging aid for piping, which allows for easily inspecting welds and the like on an internal surface of piping.SOLUTION: A guide tube 30 comprises a cylindrically shaped rotation support 42 capable of holding an insertion section 12 of an endoscope 10 in a peripheral section thereof, and a tube 32 that extends from a base end of the rotation support 42 and is held to rotate the first rotation support 42 about an axis of the first rotation support 42.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】配管内面の溶接部等の検査を容易に行うことができる配管用撮像補助具を提供することである。【解決手段】ガイドチューブ30は、円筒形状を有し、内視鏡10の挿入部12を周辺部に保持可能な回動支持部42と、回動支持部42の基端部から延出し、第1の回動支持部42を第1の回動支持部42の軸周りに回動させるために把持されるチューブ32とを有する。【選択図】図1
