This equipment is a special railway rescue means which is used to substitute the original bogie which had been damaged in traffic accident so that the damaged wagon could be pulled out leaving the accident site.

• 本装置是铁路救援的专用设备，在铁路车辆的转向架出现不能运行的严重故障时，用于临时替代转向架，使事故车辆恢复运行能力，安全地离开事故现场。