Pressure-resistant cabin for deep-sea mobile operation apparatus, underwater mining vehicle, and underwater mobile robot

A pressure-resistant cabin for a deep-sea mobile operation apparatus, the pressure-resistant cabin being applied to an environment at 3500-7000 meters underwater and comprising:

• a first chamber and a second chamber that are sealed, wherein the first chamber and the second chamber each are filled with a liquid insulating material;
• a housing of the first chamber is of a pressure-resistant metal structure, and has a pressure load of 35 Mpa;
• the first chamber is configured to accommodate electrical functional components of the mobile operation apparatus, and the electrical functional components have a pressure resistance level of no more than 35 Mpa;
• the second chamber is configured to arrange pressure compensators, and the pressure compensators synchronously conduct an external seawater pressure into the second chamber during submerging of the apparatus;
• the first chamber and the second chamber are in communication with each other through a pipeline controlled by a solenoid valve;
• an active pressure adjusting unit assembly is further arranged inside the first chamber, is connected to the solenoid valve, and is configured to measure a pressure in the first chamber and control and adjust a magnitude of a compensatory pressure from the second chamber to the first chamber;
• and
• the pressure compensators in the second chamber adjust an internal pressure of the second chamber based on a depth of the apparatus submerging in water, and when the solenoid valve of the first chamber is open, the pressure in the first chamber in communication with the second chamber through the pipeline is also adjusted accordingly.