Supporting hinge structure of river sluice gate

The trunnion hinge structure of the river sluice gate comprises a support, a positioning insertion groove is formed in one side of the outer wall of an installation buckle block, a positioning insertion block is installed on the inner wall of the positioning insertion groove in an inserted mode, an installation lantern ring is fixedly connected to the upper end of the positioning insertion block, and the installation lantern ring is fixedly connected with a hinge. A shaft stopping baffle is distributed at one end of the installation buckle block, a second locking bolt is installed on the shaft stopping baffle in an inserted mode, and a gasket is installed at one end of the second locking bolt in a sleeved mode. The trunnion hinge structure of the river sluice gate can be stably installed on the supporting arm through the hinges and the fixing bolts distributed in a matrix mode, use is more stable, the hinges can be rapidly and stably disassembled and assembled through the installation buckle blocks, the insta