Buffer device, upper support assembly, shock absorber assembly and vehicle

The utility model provides a buffering device, an upper supporting assembly, a shock absorber assembly and a vehicle, and relates to the technical field of vehicles, the buffering device comprises a shock absorber, the shock absorber comprises a shock absorber cylinder and a piston rod, the piston rod is arranged in the shock absorber cylinder, and the piston rod is configured to relatively move along the shock absorber cylinder; the buffer block is sleeved on the piston rod; the elastic piece is arranged on the piston rod in a sleeving mode, and the elastic piece is located between the shock absorber cylinder and the buffer block. Based on the scheme, the elastic piece is connected between the buffer block and the shock absorber cylinder in series in the buffer device, so that the contact rigidity between the buffer block and the shock absorber cylinder element can be reduced, the contact softness is improved, the buffer effect is improved, and the driving comfort of a user is improved.