Emergency rescue trolley with adjustable trolley body width

The utility model belongs to the technical field of fire-fighting emergency rescue devices, and particularly relates to an emergency rescue trolley capable of adjusting the width of a trolley body, which comprises a base, universal wheels, a first placing plate and a handle, the conveying device comprises a buffering unit, an adjusting unit and a protection unit. According to the emergency rescue trolley capable of adjusting the width of the trolley body, by arranging a buffer unit, when a first placement plate and a second placement plate are bumped, the first placement plate and the second placement plate shake up and down to extrude supporting blocks, so that the supporting blocks extrude damping rods and first springs, and therefore vibration borne by the first placement plate and the second placement plate is reduced; and meanwhile, a supporting block extrudes a connecting piece to rotate around a first rotating shaft and a second rotating shaft, so that a sliding block is pushed to extrude a second spri