The invention relates to the technical field of passive safety of
rail transit vehicles, and in particular relates to a contact integrated buffering and
energy absorbing device for a
rail transit vehicle. The device comprises a first energy-absorbing mounting seat, a second energy-absorbing mounting seat, a first-stage guide rod, a second-stage guide rod and an energy-absorbing body. A plurality of airbags are evenly arranged on the side wall of the first-stage guide rod, the second-stage guide rod is sleeved with the energy-absorbing body. The guide rods, the airbags and the energy-absorbing mounting seats are matched to realize first-stage buffering and
energy absorption, the energy-absorbing body, the second-stage guide rod, the energy-absorbing mounting seats and a steering connecting structure are matched to realize second-stage crushing
energy absorption, and meanwhile, the six-degree-of-freedom characteristic of a joint
ball bearing is ingeniously utilized; the function that a middle energy-absorbing module moves along with the vehicle in the horizontal direction and the vertical direction is achieved, the longitudinal
bearing capacity of the device is effectively enhanced, the anti-
instability capacity of the middle vehicle in the
train collision process is improved, and the buffering and energy-absorbing device has the advantages of being high in reliability, high in anti-
instability capacity and capable of being repeatedly used.