Box-type wave blocking device for refueling pool of reactor

The invention particularly relates to a wave blocking device for a reactor refueling pool. The wave blocking device comprises a combined box body formed by connecting a first box body (1), a second box body (2) and a third box body (3) which are the same in structure side by side in a sealed mode, and a first guide frame (6) and a second guide frame (7) which are connected to the two ends of the combined box body respectively. The first guide frame (6) and the second guide frame (7) are the same in structure and are respectively provided with an axial guide wheel (11), a radial guide wheel (12) and a lifting lug; the combined box body is hoisted through lifting lugs on the first guide frame (6) and the second guide frame (7) and is positioned in a sluice gate groove (8) of the refueling pool under the cooperation of the axial guide wheel (11) and the radial guide wheel (12), it is guaranteed that part of the whole device always floats on the water surface of the refueling pool, and the remaining part of the w