Device for collecting and transferring underwater foreign matter of nuclear power station and mounting method of device

The invention belongs to the technical field of overhauling equipment for a nuclear power station, and particularly relates to a device for collecting and transferring underwater foreign matter of thenuclear power station and a mounting method of the device. The device comprises a box, a base, a push-pull handle, a brake and wheels, wherein an end plug and a filter element are arranged in the box; lifting lug fixing buckles are arranged on the two sides of the box; a horn mouth is welded at the upper part of the box; a plug pin is arranged at the lower part of the box; a base fixing buckle and a chain connecting buckle are arranged at each of the left end and the right end of the upper surface of the base; each base fixing buckle and the corresponding lifting lug fixing buckle are connected through the corresponding chain connecting buckle; the push-pull handle and the brake are arranged on the two sides of the lower part of the base respectively; the wheels are arranged at the bottomof the base. The device i