The invention discloses a water lifesaving
capsule capable of being catapulted. The water lifesaving
capsule comprises an equipment storage shell, a positioning
communication unit, a water-sensitive self-
triggering device, a high-pressure air
bottle, a compression folding air bag and an air bag storage shell. The air bag storage shell and the equipment storage shell form an integrated shell in a buckling mode, the compression folding air bag is usually folded in the air bag storage shell, a water inflow window is formed in the equipment storage shell, when the water lifesaving
capsule is catapulted into the water, the water-sensitive self-
triggering device induces that the water lifesaving capsule falls into the water and activates the high-pressure air
bottle to inflate the compression folding air bag, the lifesaving capsule is unfolded, meanwhile, a hydraulic switch is turned on, a power source supplies power, the positioning
communication unit starts to work, and a Beidou / GPS double-mode positioning module obtains position data and then sends position information to a rescue network platform through a communication module. The water lifesaving capsule is in a catapulting foldingmode, design is reasonable, mounting is convenient, catapulting is quick, rescue time is shortened, the size is small, plenty of the capsules can be conveniently stored and carried, styles of the compression folding air bag are various, and the capsule can be applied to water lifesaving.