Underwater three-dimensional multifunctional construction operation robot

The utility model belongs to the technical field of underwater robots, and relates to an underwater three-dimensional multifunctional construction operation robot which mainly structurally comprises a robot body, a monitoring system, an overwater hydraulic station and an umbilical cord system. The robot body can freely move underwater and turn in situ by utilizing the crawler walking mechanism, and various underwater operation tools can be mounted on the manipulator to complete various construction operations; under the condition that the crawler walking mechanism is fixed, the mechanical arm can flexibly move in the up-down, left-right and front-back three-dimensional space under the driving of the rotating disc, the mechanical large arm and the mechanical small arm; the device is good in stability, firm in structure, strong in power, long in service life and suitable for construction operation of underwater engineering; the device is easy to manufacture, convenient to operate, high in working efficiency, lo