Damping passenger cabin of trackless rubber-tyred vehicle

A trackless rubber-tyred vehicle damping passenger cabin comprises a passenger cabin body, a plurality of seats are arranged in the passenger cabin body, the seats are linearly arranged into a whole row, the whole row of seats are provided with a plurality of groups according to the fixed connection relation between adjacent seats, each group at least comprises one seat, each seat comprises a base plate and a supporting back plate, and the base plates are fixedly connected with the supporting back plates. A buffer seat cushion is arranged on the base plate, the base plates of each group of seats are fixedly connected into a whole, air springs are arranged below the base plates which are fixedly connected into a whole, and air inlet pipes of all the air springs are connected with an air source of the trackless rubber-tyred vehicle through an air inlet valve. The air spring is additionally arranged below the seat, impact caused by rigid connection is buffered, damage to passengers is greatly relieved, the ridin