Scanner having flexible probe

A scanner having a flexible probe, comprising:

• a probe fixing body which moves while coming into contact with a surface of a bent fitting pipe and to which a probe body is fixed;
• a flexible connecting chain part installed to be connected to one end of the probe fixing body and having a freely bendable structure;
• a sensor installation part installed on an end of the flexible connecting chain part and configured to move while pressed against the surface of the fitting pipe;
• a sensor flexibly connected to the probe fixing body, an end of the sensor is installed on the sensor installation part to scan a weld zone of the fitting pipe;
• and
• an encoder part installed to be connected at one side of the probe fixing body and configured to move while pressed against the fitting pipe and detect a moving distance and a position,
• wherein the probe fixing body includes ball plungers provided at four positions of a lower surface of the probe fixing body and configured to slidably move the probe fixing body along the surface of the fitting pipe,
• wherein the flexible connecting chain part includes:
• a chain that is adjustable in length due to having a structure formed with a plurality of joints;
• and
• a sensor seating plate which is installed to be connected to an end of the chain and on which the end of the sensor is seated,
• wherein the sensor installation part includes:
• a press-applying part coupled to the sensor seating plate and configured to apply a uniform pressure to the end of the sensor;
• an elastic coupling part that elastically couples the press-applying part to the sensor seating plate;
• and
• a wheel installed to be coupled to a side portion of the press-applying part and configured to move the press-applying part by rotating in a state in which the wheel is pressed against the surface of the fitting pipe by a magnetic force,
• wherein a rotation axis of the wheel is arranged perpendicular to a radius of curvature of the chain.