Top cap boundary beam structure and top cap structure

The utility model discloses an upper cover boundary beam structure and upper cover structure. Said upper cover boundary beam structure includes the rectangular form box that has well cavity, and it had cable hole, equipment fixing hole etc. To open on the box. The body cap structure includes two upper cover boundary beam and connection the roof bow of two upper cover boundary beam, the upper cover boundary beam has as above upper cover boundary beam structure, the equipment fixing seat is equipped with on the roof bow. The utility model discloses upper cover boundary beam simple structure, it is convenient to manufacture, and intensity is good. The support of the main equipment of low-floor vehicle be can satisfy, the installation and the dismantlement of the built-in equipment of low-floor vehicle are also facilitate.