An underwater rescue system, including a submersible and a rescue cage. The submersible includes a housing, a turntable and a motor. The turntable is rotatably arranged at an outer surface of the housing. The motor is fixed on the housing and connected to the turntable. The rescue cage includes a connecting rod, a first lifebuoy, a second lifebuoy and an air charging device. A lower end of the connecting rod is provided with an electromagnetic chuck attracting the turntable. An upper end of the connecting rod is connected to the first lifebuoy. A bottom of the first lifebuoy is provided with a load-bearing net. A side of the first lifebuoy is connected to the second lifebuoy by a net bag. The air charging device communicates with the first and second lifebuoys and is configured to charge air to the first and second lifebuoys.

An underwater rescue system, including a submersible and a rescue cage. The submersible includes a housing, a turntable and a motor. The turntable is rotatably arranged at an outer surface of the housing. The motor is fixed on the housing and connected to the turntable. The rescue cage includes a connecting rod, a first lifebuoy, a second lifebuoy and an air charging device. A lower end of the connecting rod is provided with an electromagnetic chuck attracting the turntable. An upper end of the connecting rod is connected to the first lifebuoy. A bottom of the first lifebuoy is provided with a load-bearing net. A side of the first lifebuoy is connected to the second lifebuoy by a net bag. The air charging device communicates with the first and second lifebuoys and is configured to charge air to the first and second lifebuoys.

In one embodiment, a personal flotation device that can be worn by a user includes an inflation system including an inflatable bladder and a gas-generating component, the gas-generating component being configured to generate gas using a chemical reaction and inject the generated gas into the bladder to inflate it, and an inflation control system configured to control activation of the gas-generating component.

In one embodiment, a personal flotation device that can be worn by a user includes an inflation system including an inflatable bladder and a gas-generating component, the gas-generating component being configured to generate gas using a chemical reaction and inject the generated gas into the bladder to inflate it, and an inflation control system configured to control activation of the gas-generating component.

In order to provide a small life jacket that is unlikely to obstruct movement of a wearer, a life jacket includes: a float member that changes from an uninflated state to an inflated state with gas being supplied to an internal portion thereof, a cover that covers the float member in the uninflated state; a connecting member and a waist belt as a wearable member that is to be worn by a wearer; a guide member that is linked to the connecting member and the waist belt; and a slidable member that is linked to the float member and that slides along the guide member.

In order to provide a small life jacket that is unlikely to obstruct movement of a wearer, a life jacket includes: a float member that changes from an uninflated state to an inflated state with gas being supplied to an internal portion thereof, a cover that covers the float member in the uninflated state; a connecting member and a waist belt as a wearable member that is to be worn by a wearer; a guide member that is linked to the connecting member and the waist belt; and a slidable member that is linked to the float member and that slides along the guide member.

A salvaging device, particularly for a personal device such as a smartphone dropped into a body of water. A housing has an opening and a gas cartridge. A triggering mechanism is further packed within the housing, which includes a lever arm. A main spring is above the lever arm cocking the lever arm in a downward position. A plunger is aligned with the gas cartridge. A water-soluble retainer abuts the lever, wherein upon the retainer dissolving in a water environment, the main spring recoils to thereby unload the plunger into the gas cartridge such that gas can exit the opening. A balloon is connected at the opening inflatable by the gas to thereby provide a buoyancy force to the handheld device upon inflation.

A salvaging device, particularly for a personal device such as a smartphone dropped into a body of water. A housing has an opening and a gas cartridge. A triggering mechanism is further packed within the housing, which includes a lever arm. A main spring is above the lever arm cocking the lever arm in a downward position. A plunger is aligned with the gas cartridge. A water-soluble retainer abuts the lever, wherein upon the retainer dissolving in a water environment, the main spring recoils to thereby unload the plunger into the gas cartridge such that gas can exit the opening. A balloon is connected at the opening inflatable by the gas to thereby provide a buoyancy force to the handheld device upon inflation.

A wearable flotation device. The wearable flotation device includes a garment having an interior volume that can receive a bladder therein, wherein the bladder is designed to receive a compressed gas to enable flotation of a wearer of the garment in a body of water. A deployable signal is operably connected to the bladder via a tube having a sensor, wherein the sensor can actuate a one-way valve upon detection of moisture. The one-way valve is designed to enable the flow of the compressed gas, whereby the compressed gas actuates the deployable signal upon the sensor's detection of moisture. When actuated, the deployable signal extends upwardly beyond a periphery of the garment to alert a nearby individual of the wearer's location in the event of an emergency. The garment further includes a plurality of lights thereon for illuminating the wearer to assist in identifying the wearer's location.

A wearable flotation device. The wearable flotation device includes a garment having an interior volume that can receive a bladder therein, wherein the bladder is designed to receive a compressed gas to enable flotation of a wearer of the garment in a body of water. A deployable signal is operably connected to the bladder via a tube having a sensor, wherein the sensor can actuate a one-way valve upon detection of moisture. The one-way valve is designed to enable the flow of the compressed gas, whereby the compressed gas actuates the deployable signal upon the sensor's detection of moisture. When actuated, the deployable signal extends upwardly beyond a periphery of the garment to alert a nearby individual of the wearer's location in the event of an emergency. The garment further includes a plurality of lights thereon for illuminating the wearer to assist in identifying the wearer's location.