Inter-tower diagonal bracing device for diamond-shaped main towers of cable-stayed bridge

The utility model relates to the technical field of bridge structures, in particular to a cable-stayed bridge diamond type main tower inter-tower diagonal bracing device which comprises a first diagonal bracing mechanism used for providing supporting force for a middle tower column, and the first diagonal bracing mechanism comprises a bridging assembly, a first mounting assembly, a second mounting assembly and a supporting force assembly. The supporting force assembly comprises a distance pre-adjusting part, a first jack and a first distance fixing part, and the supporting force assembly has the beneficial effects that the first jack applies supporting force to the first mounting assembly and the first abutting plate, the distance pre-adjusting part adjusts the distance between the first mounting assembly and the bridging assembly in advance, and the first distance fixing part maintains the supporting force of the first jack; and the effect of reinforcing the tower columns of the diamond-shaped main tower in