| 摘要 |
PROBLEM TO BE SOLVED: To provide a lid body of a cleaning hole joint capable of facilitating opening/closing operation with a general purpose tool while saving its space, and a cleaning hole joint using the lid body.SOLUTION: A lid body of a cleaning hole joint includes: an insertion cylindrical part that is inserted into a cleaning hole part 13 of a cleaning hole joint 10; an annular flange part 23 that is formed so as to extend radially outward from one end of the insertion cylindrical part; a plurality of engagement projections that are engaged to a plurality of engagement grooves formed in the cleaning hole part 13 by rotating them around the central axis of the insertion cylindrical part; and a pair of tool engagement grooves 40 that are formed on both sides across the center of the flange part 23, in the flange part 23. |
