Inspecting device including detachable probe

An inspecting device for inspecting a cylindrical subject and including a detachable probe, the inspecting device comprising:

• a frame having a column shape and extending in a longitudinal direction of the column, wherein a guide hole is formed in at least one side of the frame;
• a head unit comprising a camera module installed at a fore-end of the frame;
• a first body unit coupled to the head unit and comprising a plurality of brackets formed on an external surface of the first body unit;
• a illumination module unit formed on a rear surface of the first body unit, wherein the illumination module unit is installed into a hole formed in a plate;
• a second body unit inserted into the frame and comprising a plurality of brackets formed on an external surface of the second body unit;
• a coiled spring inserted into the first body unit and the second body unit;
• and
• a link unit coupled to the plurality of brackets formed on the external surface of the first body unit and the plurality of brackets formed on the external surface of the second body unit so as to be compatible with to tube diameters of the cylindrical subject.