近年来国内、外城铁车辆日益增加,我国目前大多数城市都将地铁纳入发展计划,在考虑交通方便正常人出行的同时,我们也要考虑残疾人的出行方便。这就对车辆残疾人区的功能性要求越来越严格,故轨道车辆上满足残疾人区安全可靠的轮椅固定器设计日趋关键。本文对轨道车辆用轮椅固定器设计安全可靠性进行详细研究。 In recent years, the number of domestic and foreign urban rail vehicles has been increasing. Most cities in our country now include the MTR into their development plans. While considering the transportation convenience for normal people, we also need to consider the convenience of people with disabilities to travel. This has become more and more strict on the functional requirements of the disabled area of ​​the vehicle, so that the design of a wheelchair holder for the rail vehicle that is safe and reliable for the disabled is becoming increasingly crucial. In this paper, the reliability and safety of wheelchair fixer for rail vehicles are studied in detail.