Slided-backrest of seat for vehicle

The utility model provides a horizontal slid-backrest seat for a vehicle, which comprises a backrest, a chair seat and a hand wheel, wherein the hand wheel which is installed at one side of the backrest is used for regulating angles of the backrest. The utility model is characterized in that the bottom of the backrest presents the shape of an arc; adjacent two sides of the backrest and the chair seat are respectively and additionally provided with a side plate; the upper end of the side plates and the side surface of the backrest are in shaft connection; the inner side of the bottom of the side plates is provided with a movable pulley; correspondingly, a longitudinal horizontal slide way is arranged at the side surface of the chair seat; the movable pulley is clamped in the slide way; a fixed knob which is additionally arranged is tightly fixed in the chair seat by penetrating the side plates; the angles of the backrest in the utility model can be regulated, and the backrest can be moved in a longitudinal direction, so passengers who sit at the back row can put legs on the front row of seat to have a rest. The utility model solves the defects existing in the existing vehicles that the passengers who sit at the back row can not feel relaxed and comfortable because the legs are not well expanded; the utility model has the advantage of superior performance properties.