Anti-sinking and anti-floating pipe and floating platform

The utility model discloses an anti-sinking and anti-floating pipe and a floating platform, which belong to the technical field of marine floating equipment and comprise a shell, a water pumping assembly, an expansion air bag and a water level sensor, a water pumping opening of the water pumping assembly is located at the lowest point in the shell. The expansion air bag and the water level sensor are located in the shell, the expansion air bag is located at the highest point, and the water level sensor is located between the water pumping opening and the expansion air bag. When the shell is broken and the water level rises to the position of the water level sensor, the water level sensor sends out a signal to enable the water pumping assembly to discharge seawater flowing into the shell, and meanwhile the expansion air bag is inflated rapidly, so that the notch is blocked, and the sinking and floating preventing pipe keeps certain buoyancy temporarily, and time is gained for rescue work. The problem that an e