Downward-turning type side window assembly of railway hopper car and railway hopper car

The side window assembly comprises a window frame and a window plate, the lower end of the window plate is hinged to the window frame, the window plate can be folded inwards by 180 degrees to be opened, the window frame is provided with a spring lock mechanism, the spring lock mechanism is used for locking and limiting closing of the window plate, and the inside and the outside of the side window do not protrude out of a vehicle body. The inner space of the window frame is not occupied after the side window is opened through the downward turning type structure, the wide visual field is guaranteed, meanwhile, the window plate can be automatically tightened through the spring lock structure when the side window is closed, operation is easy and convenient, the problems that an existing vehicle window is difficult to open and close, and the hand clamping risk exists are solved, and the window is more labor-saving, more flexible and safer to open and close. 本发明公开了一种铁路漏斗车下翻式侧窗组成和铁路漏斗车，该侧窗组成包括：窗框和窗板，窗板的下端铰接在窗框上，窗板能够