Manual closing device for roller shutter door

A manual closing device for a roller shutter door comprises a connector (4) mounted on the lower portion of the roller shutter door (1) or a bottom strip (1a) of the roller shutter door, a fixing part (3) mounted on the lower portion of a guide rail (2) on one side of the roller shutter door or a wall beside the lower portion of the guide rail of the roller shutter door, and a chain (5) with two ends connected respectively with the connector (4) and the fixing part (3). The roller shutter door with the manual closing device may be easily opened and closed by the aid of other tools, and the whole device is low in material cost, easy to mount and highly practical. 种卷帘门用手动关闭装置，包括安装于卷帘门(1)下部或卷帘门底部边条(1a)上的连接件(4)、安装于卷帘门侧导轨(2)下部或卷帘门导轨下部旁边墙面上的固定件(3)、两端分别与连接件(4)和固定件(3)连接的索链(5)。采用本发明装置的卷帘门不需要借助其他工具即可方便地开关，整个装置制作材料成本低，安装方便，实用性强。