Visual detection device for detecting driven chain wheel

The utility model discloses a visual inspection device for driven sprocket detection, which comprises a visual inspection camera and a fixing plate fixedly mounted at the top of the visual inspection camera, the bottom of the fixing plate is fixedly connected with an avoidance type retaining and protecting cleaning mechanism, and the avoidance type retaining and protecting cleaning mechanism comprises a circular tube fixedly connected to the bottom of the fixing plate. The visual detection camera is located in the circular tube, and the bottom of the circular tube is movably contacted with a transparent plate. The visual inspection camera is conveniently shielded and protected, the visual inspection camera is prevented from being directly touched by mistake or covered by impurities and dust, the transparent plate is conveniently and automatically wiped and cleaned at regular time, manual regular cleaning is not needed, time and labor are saved, wiping cotton is conveniently driven to make close contact with t