Downhole safety inspection robot

The invention relates to inspection robots, in particular to a downhole safety inspection robot. The robot comprises an inspection guide rail, a shell and a safety inspection device; a sliding assembly matched with the inspection guide rail is fixed on the shell; a buffer mechanism used for protecting the safety inspection device is arranged in the shell; a cleaning mechanism used for cleaning theinspection guide rail is arranged on the shell; the buffer mechanism comprises an upper moving plate connected with the inner wall of the shell through a first spring, a groove formed in the inner wall of the shell, a guide rod fixed between the inner walls of the groove and a sliding block relatively connected to the guide rod in a sliding mode; the sliding block and the inner wall of the grooveare connected by a second spring; the sliding block is hinged to a lower moving plate through a first connecting rod; and the safety inspection device is arranged between the upper moving plate and the lower moving plate. Acc