Flexible short section bearing force through axial elastic long rod body

The invention provides a flexible short section bearing force through an axial elastic long rod body. The flexible short section comprises an upper connector, a lower connector, a connecting shaft, a supporting sleeve and an elastic pressure-bearing rod. The upper connector and the lower connector are connected in a hinged mode through the connecting shaft, the supporting sleeve fixedly sleeves the connecting shaft, an arc-shaped guide groove is formed in the outer circumferential face of the supporting sleeve, the elastic pressure-bearing rod is a rod body of an elastic structure, the two ends of the elastic pressure-bearing rod are correspondingly fixed to the upper connector and the lower connector in a limited mode, and the middle of the elastic pressure-bearing rod is in a two-dimensional curve rotation shape and penetrates through the guide groove. The long-rod-shaped elastic pressure-bearing rod serves as the elastic structure rod body of the flexible short section, the elastic pressure-bearing rod is