Endoscope snake structure with adjustable pitch function

Abstract

The application belongs to the technical field of endoscope snake bone, and provides an endoscope snake bone structure with adjustable spacing function, which comprises an endoscope snake bone composed of multiple snake bone rings and a connecting mechanism; two adjacent snake bone rings are rotationally connected through a rotating shaft; a movable groove is formed on the surface of the snake bone ring; a fixed arc plate is fixedly connected to the middle part of the front side and the rear side of the inner wall of the snake bone ring; and the other end of the fixed arc plate is rotationally connected with a rotating arc plate. The endoscope snake bone structure with adjustable spacing function is characterized in that: by pulling one end of the steel wire rope, the steel wire rope is tightened through the connection of the steel wire rope; after the one end of the steel wire rope is loosened, the steel wire rope is retracted and moved; the tension of the steel wire rope is adjusted; the spacing between the multiple snake bone rings is adjusted; the multiple snake bone rings are moved in a turning direction; and the movable groove is formed, so that the use range of the endoscope of the snake bone structure is expanded, and the endoscope is convenient for use in the detection of cracks of a steam turbine.