Semitrailer chassis and have van -type semitrailer of this chassis

The utility model provides a semitrailer chassis and have van -type semitrailer of this chassis, the front end and the rear end of semitrailer chassis are provided with preceding end beam and back end beam respectively, a plurality of crossbeams have been placed on the chassis, the both ends of crossbeam are connected with the left side roof beam and the right roof beam, the crossbeam adopts the bathtub construction, run through left longeron and right longeron and with the crossbeam is connected, preceding end beam, left longeron, right longeron, crossbeam, back end beam, the left side roof beam and the right roof beam constitute a holistic frame construction. The utility model provides a semitrailer chassis is the gooseneck type structure, and the floor at carriage rear portion is overhead lower than anterior, and the interior height is bigger, corresponding increase the available volume in carriage. 本实用新型提供种半挂车底架及具有该底架的厢式半挂运输车，所述半挂车底架的前端和后端分别设置有前端梁和后端梁，所述底架上放置有若干横梁，所述横梁的两端连接有左边梁和右边梁，所述横梁采用槽形结构，贯穿左纵梁和右纵梁、并与