Protector and rail vehicle for rail vehicle

The utility model provides a protector and rail vehicle for rail vehicle, wherein, protector includes for the rail vehicle: frame, frame end are equipped with two connecting portion, and the width direction interval setting of frame is followed to two connecting portion, guide slide forms at the tip of frame and lies in between two connecting portion, and guide slide extends along the length direction of frame, the slider, it sets up in guide slide to slide, the connecting plate is connected on guide slide's surface with the slider dorsad, and the both ends of connecting plate are connected respectively on two connecting portion to make connecting plate and slider fix a position the tip at guide slide, the connecting plate surface of slider dorsad is used for being connected with couplingbuffer, buffer support device holds the length direction who follows the frame in guide slide and sets up, and buffer support device connects between frame and slider for the guide slider slides and plays buffering, supportin