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    • 68. 发明申请
    • PIPE INSPECTION TOOL
    • WO2021044171A1
    • 2021-03-11
    • PCT/GB2020/052138
    • 2020-09-07
    • DOOSAN BABCOCK LIMITED
    • HAUGE, RobinHALLEY, Joe
    • F16L55/30G01M3/00F16L101/30
    • Pipe inspection tool for inline inspection of a pipe or pipeline, having at least one inspection device (1) for inspecting the pipe or pipeline and drive means to move the pipe inspection tool inside the pipe or pipeline, the drive means comprising at least one wheel unit (21) with a main body (6) and at least a first and a second wheel (4) connected to said main body adapted to contact the inside wall of the pipe or pipeline, the main body being adapted to rotate with respect to the longitudinal axis of the pipe inspection tool to allow the wheels to rotate and thereby generate a force on the pipe or pipeline to move the inspection tool with respect to the pipe or pipeline, wherein the rotational axis of said at least one wheel is at an angle with respect to the longitudinal axis of the pipe inspection tool, to have, in use in a longitudinal section of the pipe or pipeline, the rotational axis of said at least one wheel at an angle with the longitudinal axis of the pipe or pipeline to generate, when rotating the wheel, a force on the pipe or pipeline in both the longitudinal direction and the radial direction thereof.