Urban rail transit station accessory structure

The utility model provides an urban rail transit station accessory structure which comprises a piston air channel, a piston air shaft, an evacuation channel, an emergency exit and an entrance and exit channel, the piston air shaft and the emergency exit are located over the entrance and exit channel, the piston air channel is connected with the piston air shaft through an overpass air channel, and the evacuation channel is connected with the emergency exit through an evacuation channel. And the evacuation channel is connected with the emergency exit through an overpass channel. According to the utility model, not only is the floor area reduced, but also the standard requirements of surrounding environmental assessment spacing, piston air shaft spacing and the like are met, and the emergency exit path is convenient and smooth. 本实用新型提供了一种城市轨道交通车站附属结构，包括活塞风道、活塞风井、疏散通道、安全出口和出入口通道，所述活塞风井和安全出口位于所述出入口通道的正上方，所述活塞风道通过上跨风道与所述活塞风井连接，所述疏散通道通过上跨通道与所述安全出口连接。本实用新型既减少了地面占地，又满足周边环评间距、活塞风井间距等规范要求，且安全出口路径便捷、顺畅。