Backstop mechanism and have rail vehicle of this backstop mechanism

The utility model discloses a backstop mechanism and have rail vehicle of this backstop mechanism. Rail vehicle includes, the wheel, the bogie, install tread brake device on the bogie is including being close to relatively the brake shoe of wheel setting and keeping away from relatively the casing that the wheel set up, backstop mechanism locates the bogie with just be located between the casing being close to of casing the one end of brake shoe, wherein, work as the brake shoe compresses tightly the tread of wheel, just the casing has keeps away from along the first direction during the movement tendency of wheel, the restriction of backstop mechanism the motion displacement of casing. Compared with the prior art, the utility model discloses laying the backstop position in the front portion of casing, having shortened the reaction force's of brake force the arm of force greatly, make the tread brake device when bearing same first opposite force, the reaction force's of brake force torque is littleer, promote