Seat angle adjusting device

The utility model discloses a seat angle adjusting device. The left side of a connecting plate is provided with a connecting plate fixing plate, the right side is provided with a rotating shaft, and the middle part is provided with a slot (a) along a length direction; the centre line of the slot (a) is parallel to a horizontal plane; a rotating block is arranged on the rotating shaft, a groove is formed in the upper surface of the rotating block, a concave table is formed in the lower surface, and an inclined slot (b) is formed in the middle of the front side; the length and width of the inclined slot (b) are the same as the length and width of the slot (a); bolts are arranged in the slot (a) and the inclined slot (b); the bolts penetrate through the rotating block and the connecting plate sequentially; and an elastic cushion, a flat cushion and a ball head nut are arranged on the end of the bolt of the outer side of the connecting plate sequentially. By utilizing the seat angle adjusting device, the problem that the seat surface declines is solved, the service life of the seat is prolonged and the comfort level of the seat is improved; the seat angle adjusting device is reasonable in design and simple in structure, and is applicable for an automobile folding seat.