Band shift moves radiator fan's computer

The utility model provides a band shift moves radiator fan's computer, it is rotatory to drive the turning block through actuating motor, and then make the turning block drive the swinging arms swing,thereby make the second sliding shoe reciprocate along the slide bar, making progress or move down, the second sliding shoe can produce the pulling force to the slide bar when, thereby pulling slidebar motion, first sliding block was turned left to remove along the horizontal pole and was makeed whole slide bar be close to the turning block gradually this moment, meanwhile the swinging arms moves back from the through -hole of turning block backward, first spring compressed, after the motor cuts out, reseing under the effect of first spring, the swinging arms gos forward from the through -hole of turning block, and push away to the second sliding shoe while swinging, make the slide bar promoted, first sliding block was turned right along the horizontal pole and was removed and make the whole slide bar to keep awa