Expansion joint flow guide plate

The utility model relates to the technical field of building expansion joint flow guide, in particular to an expansion joint flow guide plate which comprises a plate body, and an expansion joint elastic clamping block and an invisible expansion nail assembly are arranged on the inner side of the plate body. The expansion joint elastic clamping block comprises a connecting rod and a V-shaped elastic clamping block; the V-shaped elastic clamping block is detachably connected with the inner side of the plate body through the connecting rod; the invisible expansion nail assembly comprises an insertion rod, a deformation pipe and an expansion pipe. The insertion rod is connected with the inner side of the plate body; the deformation pipe sleeves the insertion rod and is arranged between the expansion pipe and the insertion rod; the deformation pipe is extruded by the expansion pipe to deform, the space between the insertion rod and the expansion pipe is filled with the deformation pipe, and the insertion rod is cl