A Wind pressure smoke door for train tunnel refuge

摘要

The present invention relates to a windproof door installed in a railway tunnel evacuation port comprising a frame and a side door that is opened and closed at one end of the frame by a hinge and the other end is provided with a locking / The hinge portion is provided with a thrust bearing and a ball bearing so as to support the hinge shaft on the lower side of the frame, and a ball bearing is provided on the upper side of the frame to support the hinge shaft. The door closure includes a frame In the wind pressure defense door provided on the upper side of the wind tunnel, Wherein the locking claw includes a locking piece having a rectangular cross-sectional shape engaged with a locking groove formed in the upper and lower portions of the frame, and a hanging releasing mechanism for releasing or reinserting the locking piece from the locking groove at the same time; The driven gear mechanism includes a pair of pinion gears to which gears of drive arms connected to a presser bar that is horizontally installed on the inside of the door are gear-engaged, and are coupled to the gear box. The pinion gears are gear- A locking bar for slidably driving the locking bar is installed so that the lock pieces having a rectangular cross-sectional shape attached to the upper and lower ends of the locking bar can be detached from the locking groove, The locking pin provided on the locking bar is hooked on the pin catching jaw of the hanger stopper so that the locking piece can be held in the locking groove.