Connecting structure of rolling brush assembly of photovoltaic cleaning robot

The utility model discloses a connecting structure of a rolling brush assembly of a photovoltaic cleaning robot, which relates to the field of photovoltaic cleaning robots and comprises a rotatable rolling brush, a positioning shaft capable of synchronously rotating with the rolling brush is arranged on the inner side of the rolling brush in a penetrating manner, and two ends of the positioning shaft are in threaded connection with alignment sleeves. And slidable inner connecting blocks are arranged on the inner sides of the alignment sleeves. The butt joint seats are coaxially arranged on the outer side of the alignment sleeve, the inner connecting blocks can slide to the inner sides of the butt joint seats, slidable positioning rings are arranged on the inner sides of the butt joint seats, and the surfaces, close to the inner connecting blocks, of the positioning rings extend outwards to form a plurality of stop ball frames; a plurality of limiting grooves matched with the inner connecting blocks are formed