A personal floatation device includes a garment having a body portion and a buoyancy member coupled to the garment. The garment extends above and below the buoyancy member and is transitionable between a deflated state and an inflated state. The buoyancy member includes an inflatable bladder and at least one handle. The personal floatation device includes an inflator module in fluid communication with the inflatable bladder. The inflator module includes a power supply and a storage device containing a buoyant material to at least partially fill the inflatable bladder. The at least one handle is operatively coupled to the inflator module to control flow of the buoyant material into the inflatable bladder. The personal floatation device includes an illumination source in electrical communication with the inflator module such that the power source of the inflator module provides power to the illumination source in the inflated state.

A floatation device includes a body transformable between a retracted configuration and an extended configuration. A stiffener assembly is movable between a first position and a second position. The stiffener assembly is biased into the second position. The stiffener assembly is operably coupled to the body such that movement of the stiffener assembly between the first position and the second position causes the body to transform between the retracted position and the extended position. During the transformation of the body between the retracted position and the extended position, a partial vacuum is created within the body to inflate the floatation device.

A floatation device includes a body transformable between a retracted configuration and an extended configuration. A stiffener assembly is movable between a first position and a second position. The stiffener assembly is biased into the second position. The stiffener assembly is operably coupled to the body such that movement of the stiffener assembly between the first position and the second position causes the body to transform between the retracted position and the extended position. During the transformation of the body between the retracted position and the extended position, a partial vacuum is created within the body to inflate the floatation device.

The present invention discloses a mobile throwing type intelligent overwater-assisted life-saving appliance ejection device includes a launching device and a life-saving appliance body. The launching device includes a shoulder rest, a launching tube, a display, a cable storage tube, a handle and an observing and aiming device. The observing and aiming device includes a camera, a range-finding sensor and a plurality of LED lamps surrounding the camera and the range-finding sensor. The life-saving appliance body is arranged in the third chamber, and the life-saving appliance body includes a bullet-shaped hollow housing and an inflatable float. The housing is provided with a water inlet. The inflatable float is folded in an inner cavity of the housing. The mobile throwing type intelligent overwater-assisted life-saving appliance ejection device of the present invention has the advantages of reasonable and simple structure, convenient operation, long throwing distance, and high throwing accuracy and effectively solves the problem that it is difficult to accurately throw a life-saving appliance to the side of a person who has fallen into the water.

The present invention discloses a mobile throwing type intelligent overwater-assisted life-saving appliance ejection device includes a launching device and a life-saving appliance body. The launching device includes a shoulder rest, a launching tube, a display, a cable storage tube, a handle and an observing and aiming device. The observing and aiming device includes a camera, a range-finding sensor and a plurality of LED lamps surrounding the camera and the range-finding sensor. The life-saving appliance body is arranged in the third chamber, and the life-saving appliance body includes a bullet-shaped hollow housing and an inflatable float. The housing is provided with a water inlet. The inflatable float is folded in an inner cavity of the housing. The mobile throwing type intelligent overwater-assisted life-saving appliance ejection device of the present invention has the advantages of reasonable and simple structure, convenient operation, long throwing distance, and high throwing accuracy and effectively solves the problem that it is difficult to accurately throw a life-saving appliance to the side of a person who has fallen into the water.

A method of operating an inflation system is provided. The method includes recognizing that the inflation system is activated or actuated by a user, supplying current to an electromagnet of a solenoid valve of the inflation system such that an armature-valve element of the solenoid valve is moved to an open position, wherein movement of the armature valve element to the open position actuates an actuator housing that in turn causes a normally-closed valve element of a valve housing of the inflation system to open, and ceasing current supply to the electromagnet once the actuator housing is actuated.

A valve assembly is provided and includes a valve housing, an actuator housing coupled to the valve housing and configured when actuated to open a normally-closed valve element in the valve housing whereby pressurized fluid is permitted to flow through the valve housing and a solenoid valve. The solenoid valve includes an armature-valve element balanced to remain in a closed position and an electromagnet. The electromagnet generates magnetic flux that moves the armature-valve element into an open position such that at least a portion of the pressurized fluid flows into the actuator housing to actuate the actuator housing.

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.

A lifesaving device and a lifesaving control method are provided. Wherein, the lifesaving device includes: at least one first detection module (200) configured for detecting human body biological characteristic information, a lifesaving device body (100) capable of being worn on a body of a user, and at least one first gasbag module (300) arranged on the lifesaving device body (100); after the first gasbag module (300) is activated, a lifesaving gasbag (1) can be popped up; the first detection module (200) is in signal connection with the first gasbag module (300) and is configured for activating the first gasbag module (300) when the biological characteristic information detected meets a first preset condition.