Damping device for cab of snow throwing vehicle

The utility model discloses a vibration damper for a cab of a snow throwing vehicle, which belongs to the technical field of snow throwing machinery manufacturing and comprises two vibration damping air bags which are respectively hinged between the cab and a frame and are positioned on two sides of the rear part of the cab, and two sides of the front end of the bottom of the cab are respectively hinged with the frame; a damper is hinged between the cab on the inner side of each damping air bag and the frame; a limiting block extending downwards is arranged at the position, between the two damping air bags, of the bottom of the cab, a damper installation base is fixed to the position, between one damping air bag and the limiting block, of the frame, a damper is hinged between the damper installation base and the limiting block, and a balance valve is installed on the position, between the other damping air bag and the limiting block, of the frame. The balance valve is provided with a first air port and a seco