Compound crossbeam

The utility model discloses compound crossbeam relates to a connection left and right longitudinal beam's who is applicable to on the frame crossbeam. Its purpose is in order to provide a compound crossbeam who integrates degree height, compact structure. The utility model discloses compound crossbeam includes curb plate (8) of two relative settings, two riser (3) have been linked firmly between the curb plate, the top and the below of riser have linked firmly apron (1) and bottom plate (7) respectively, seted up transmission shaft interface (11) and steering linkage interface (14) on the riser, every it is equipped with derailleur erection support (4) all to fix on the curb plate, derailleur installation interface (12) has been seted up on the derailleur erection support, valve member installation interface (13) has been seted up on the apron, the mounting hole has been seted up on the curb plate. 本实用新型复合横梁涉及种适用于车架上的连接左右纵梁的横梁。其目的是为了提供种集成化程度高、结构紧凑的复合横梁。本实用新型复合横梁包括两个相对设置的侧板(8)，两个所述侧板之间固连有立板(3)，所述立板的上方和下方分别固连有盖