Portable car of car roof beam folded cascade

The utility model discloses be the suspended wall roof beam to the handy car roof beam of prior art car roof beam folded cascade, the nut of fixed car roof beam and torsion that the bolt received and shearing force be big, make bolt and nut fragile, bring the not enough of potential safety hazards for the rider, provide one kind and lock that parts are not fragile, the portable car of car roof beam folded cascade of rider safety, including frame and che liang, car liangyou crossbeam and support frame are formed, and the front end of crossbeam is connected with the front end of frame, the lower extreme and the connected to the frame of support frame, and the rear end of crossbeam is connected with the upper end of support frame, and crossbeam and support frame all can be folding to the frame, adopt the utility model discloses the portable car of car roof beam folded cascade of structure when needing the folding vehicle -hour, only needs unclamp locking device, removes the mutual binding of crossbeam and support frame, just can fold the car roof beam that the support frame of crossbeam is formed, and the occupation space of reduction car roof beam takes advantage of the time spent, and gravity is shared by the support frame, so each parts is not fragile, has guaranteed the security of taking advantage of usefulness, has guaranteed the portability of car simultaneously.