The utility model relates to a design stove draws limit machine installing port heat preservation device, the device is including being used for along the lid of vertical direction lock on design stove installing port, offer on the lid and be used for passing the first lid opening that draws limit axle and second to draw the limit axle, the lid is located the one side that the installing port is opposite is provided with the guide rail that the horizontal direction extends, the guide rail inserts first fly leaf and the second fly leaf of hugging closely, wherein first fly leaf is close to thelid opening, the edge has been seted up on all to first fly leaf and second fly leaf slot hole and round hole that guide rail extending direction extends, first limit axle and the second of drawing draws the limit axle all to pass in proper order round hole, slot hole and lid opening get into in the installing port. This design stove draws limit machine installing port heat preservation device whoopenly provides can draw limit machine installing port to keep warm and can adjust the interval of drawing the limit axle as required to the design stove.