Heat dissipation structure of motorcycle engine case cover

The utility model relates to the technical field of engine case covers, and provides a heat dissipation structure of a motorcycle engine case cover, which comprises a case cover, a sealing shell fixedly mounted at the top of the case cover, and a moving mechanism, the moving mechanism comprises grooves formed in the two sides of the sealing shell and sliding rails fixedly installed on the upper sides and the lower sides of the inner walls of the grooves. A motor is started to drive a screw rod to rotate in a groove, a brush plate is linked to slide on a sliding rail, so that the brush plate moves left and right, a filter screen is effectively cleaned, and during cleaning, a fan is rotated, so that the temperature in a box cover is discharged outwards from the grooves formed in the two sides of a sealing shell, and the temperature in the box cover is reduced while the temperature is discharged. And dust on the filter screen cleaned by the brush plate can be blown away outwards, the cleaned dust is prevented fr