Car seat convenient to adjust

The utility model relates to the field of automotive technology, especially, relate to a car seat convenient to adjust, including the seat face, seat face below is fixed with the arc support, the arc support bottom surface is equipped with the slide rail, the arc support below is equipped with the arc support base, the spout that corresponds with the slide rail is seted up to arc support base top surface, the arc support falls into in the spout of arc support base, the arc support both ends are equipped with align to grid's spacing hole, the both ends in spacing hole are equipped with the locating pin, seat face side is equipped with the backrest, the both sides of backrest are equipped with supplementary back, supplementary back one side is equipped with the hinge. The utility model provides a car seat convenient to adjust, beneficial effect lies in: set up the spare seat back, use with the crowd of different sizes, the width height of headrest is all adjustable, the angle of seat face also can be finely tun