Radiator convenient to maintain

The utility model relates to the technical field of radiators, and discloses a radiator convenient to maintain, which comprises a base, a plurality of groups of fins are arranged at the upper end of the base, a fixing device is arranged at the upper end of the base, and the fixing device comprises a support, a concave groove, a notch, a sleeve, a screw rod and a threaded groove. The screw rod moves to drive a connecting seat on the side wall of the screw rod to move downwards, the connecting seat moves downwards to drive a connecting rod to move, and the connecting rod moves to drive a sliding block hinged to the connecting rod to slide on the surface of a sliding rod, so that the sliding block and a supporting rod move outwards; and the two sides of the fins are supported through movement of the supporting plates on the side walls of the two sets of supporting rods, so that the device is more stable during use, the situation that the fins are prone to breakage during use due to gaps between the fins and the