Endoscope with variable illumination structure

The utility model discloses an endoscope with a variable lighting structure, which comprises a stretching part and a lighting part, and the stretching part is connected to the lighting part through an adjusting mechanism; and the adjusting mechanism comprises a first fixing block, a second fixing block, a hinge rod, a rotating plate and a guide groove, the first fixing block is fixed to the outer wall of the stretching-in part, the second fixing block is fixed to the outer wall of the lighting part, and the first fixing block and the second fixing block are hinged through the hinge rod. According to the endoscope with the variable illumination structure, by arranging the adjusting mechanism, the illumination part can rotate relative to the extending part, the illumination range can be enlarged in this way, the detection range is enlarged, the endoscope does not need to be moved in a large range in the using process, and therefore the problem that a patient feels uncomfortable in application is avoided; and th