Connecting device for improving strength and rigidity of end beam of flatcar and flatcar

The invention provides a connecting device for improving strength and rigidity of end beams of a flatcar and the flatcar, and relates to the technical field of railway equipment.The two ends of a middle beam of the flatcar are connected with the two end beams of the flatcar respectively, and the position, close to each end beam, of the middle beam is used for being provided with one connecting device. The tops of the two connecting plates are connected with the lower wing edges of the two sides of the middle beam respectively. The web plate is arranged between the two connecting plates, and the two ends of the web plate are connected with the two connecting plates respectively; the webs can provide transverse supporting columns, then the rigidity and strength of the two sides of the middle beam can be improved, when the end beam is subjected to vertical loads, the webs can support the middle beam to deform inwards, and therefore the connecting device bears compression force, and the strength and rigidity of t