A vehicle-mounted
oxygen supply device is characterized in that: the vehicle-mounted
oxygen supply device is composed of a
gas generator, an air bag, and an air guiding device, and the
gas generator is composed of a container, a medicament, a
water storage device, a switch, and a one-way valve Composition, the air guiding device is composed of a one-way valve, a
catheter, and a
breathing switch. When the vehicle falls into the water, the
gas supply switch in the
gas generator is turned on, and the internal reaction occurs to generate
oxygen. The gas enters the
airbag through the one-way valve, and the occupants of the vehicle can inhale oxygen through the
breathing port, and at the same time, the exhaled gas passes through the one-way valve through the
breathing port. And the guide of the
catheter enters the gas generator, the
carbon dioxide in the exhaled gas in the gas generator is absorbed by the
medicine inside the generator, and the remaining oxygen enters the
airbag and can be used again; when the occupants are trapped in the car, the device
Oxygen can be provided to ensure that it will not drown. When the occupants of the vehicle can escape from the vehicle that fell into the water, the
airbag can be used as a lifebuoy to provide sufficient
buoyancy for the occupants.