principle of automatic inflatable life jacket

This kind of life jacket is made of high -intensity Waterproof material. The inflatable life jacket is composed of sealing inflatable vest, micro -pressure gas cylinders, and fast inflatable valves. It is often used in the possibility of falling into the water.

Under normal circumstances (not inflatable), the entire inflatable life jacket is Hanging on the back of the shoulder like a strap. Because the volume is small, it does not hinder people's homework.At all times, or automatically expand and inflatable (automatic inflatable life jacket) according to the action of water, or by pulling a cable (manual inflatable life jacket) on the man-charged air valve, it can be inflated into 8-15 kg of buoyancy within 5 seconds.Safe clothes; life jackets hold up the human body upward, so that the head and shoulders are exposed to the surface, so as to obtain safety protection in time.

The automatic inflatable life jacket will soften the water sensitive element in the automatic device after the water is immersed in the water after falling into the water, loses the needle in the needle, and the spring stretchs pushes the piercing needle to pierce the cylinder sealing film carbon dioxide gas to fill the airbag and generate buoyancy.

How to use automatic inflatable life jacket

1. Check before wearing

(1) Check whether the life jacket is damaged to ensure that the life jacket has no cracks or thorns.This type of damage on the outer cover indicates that the inflatable gas chamber may have been in contact with the parts that cause damage.If these flaws are found, you cannot continue to use it before the maintenance test.

(2) Check the status of the automatic inflatable device. The indicator components of the automatic inflatable device will inform you whether the automatic inflatable device has been properly installed.Please refer to the inflatable device indicator component inspection instructions near the automatic inflatable device.

(3) Check the carbon dioxide cylinder. When the automatic inflatable device works, the cylinder equipped with carbon dioxide gas will ventilate the life jacket.The size of the installed carbon dioxide cylinder needs to be checked correctly and has not been used before.When checking the cylinder, unscrew the cylinder and observe the screw mouth plane.There are no components that display the interior gas on the steel cylinder.If the screw mouth plane is damaged, the cylinder needs to be replaced.Refer to the specifications of the homepage product specifications to select the proper size of the steel cylinder, including the size of the threaded mouth and the weight of the interior carbon dioxide.If the cylinder is normal, it is necessary to correctly return to the automatic inflatable device.Additional instructions for CO2 steel cylinders:

Before installing the CO2 cylinder, the automatic inflatable device without proper installation will cause an immediately inflatable.

CO2 steel cylinders can only be inflated once and cannot be used again.

The protective plating layer of the CO2 steel cylinder may be corroded after placing the environment or for a period of time. At this time, the CO2 steel cylinder will begin to show some signs of rust.To replace the CO2 steel cylinder.

2. Install and indicate component inspection

The last page of the instructions for use provides the automatic inflatable device for life jackets and then install and indicate component inspection instructions.

3. Putting instructions after inflatable

A plenty of life will be difficult to put on.Exhaust through the mouth blowing Tube until it is easy to wear.See page 4 exhaust description.Put as described above and blow it out.

Before use, practice closed fastening and adjustment steps as follows: Stretch into the left arm first, then reach into the right arm, close the fastener, and finally tighten the strap.

4. Instructions for inflatable

(1) Automatic inflation: Automatically inflatable device after falling water will automatically inflatable within 5 seconds.

(2) Portum inflation: The mouth blowing pipe is located on the left side of the user.Open the left side of the life jacket, pull the mouth blowing duct straight, and blow the air until the airbags harden.If the airbags become softer due to carbon dioxide infiltration (after a period of time, the cylinder gas is lost normally), it is necessary to maintain sufficient buoyancy through the mouth blowing.

(3) Frozen conditions: In the condition of temperature below 40 C, the airbags are not hard. In addition to automatic inflatable, it is necessary to perform mouth blowing.The carbon dioxide gas at this temperature will be longer.

(4) Other inflatable instructions: Be careful not to blow the full filling and use carbon dioxide cylinders to manually inflatable.Repeating carbon dioxide ventilation after mouth blowing will destroy life jackets.You must never use the air pump or air compressor to get angry with life jackets.Carbon dioxide gas loss is more lost than air inflation, so it is necessary to supplement it as soon as possible through the mouth blowing system.

5. exhaust description

Plug the mouth blow valve (at the end of the mouth blowing Tube) with the end of the hood on the mouth blowing pipe. While pressing the port blowing valve, gently discharge the gas from the airbag.Can not exhaust the life jacket airbag.If the mouth blowing valve is kept open for some reason, press the valve multiple times.If it cannot be released, the life jacket needs to be repaired.

6. Other instructions

(1) Unless you are in the cabin, you must put on a life jacket from time to time.

(2) Avoid all unnecessary activities that will wear a life jacket to avoid exposure.

(3) Be careful when used around the sharp object.

(4) If the automatic inflatable life jacket falls into the water or places the inflatable system in an unnecessary water spraying environment, it will cause accidental inflation.

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Where is the aircraft life jacket

Passenger life jackets on board are divided into baby life jackets and adult life jackets, which are stored in the corresponding position.The first -class and business class passenger life jackets are generally under the hands of the seat. Ordinary cabin passenger life jackets are below the seat, and they can touch them with their heads.Under the age of age, use baby life jackets (below the first row of infant cradle seats in each cabin), and use adult life jackets over the age of age.

How to use aircraft life jackets

1. Take out the life jacket, tear the packaging, and wear it through the head.

2. Tie the strap tightening.

3. Pull the red inflatable handle and automatically inflatable the life jacket.

4. When the inflation is insufficient, pull out the artificial inflatable pipe and inflatable with your mouth.

5. When the adult life jacket is worn for minors, put the strap between the legs and deduct tightly.

6. Infant life jackets are slightly different when wearing, please help from the flight attendant.

precautions for use on board life jackets

1. Passenger life jackets should be inflated before leaving the plane, because The life jacket will be bloated after pumping. When the evacuation is crowded, blocking the aisle, exit, and affecting the evacuation time.and After inflatable life, the life clothes are easily cut through sharp objects, leakage, and losing life -saving function. If the aircraft gets in water, the life jacket will make people drift in the cabin, and even pushes it on the cabin ceiling, which is difficult to escape.

2. Unless you have to do, try not to try to swim in life jackets. The water temperature of the seawater is low, and the average surface water temperature does not exceed 20 degrees Celsius. The temperature of 13%of the water meter is less than 4 degrees Celsius.Adults in thin clothes survive in water temperature at 10 degrees Celsius for about 2-4 hours.Jack in "Titanic" leaving Ruth quietly under extremely cold fatigue.

3. Passengers who cannot take care of themselves and the inconvenience of the upper limbs are inflated immediately after wearing it.

4. Baby inflatable when holding the seat. After leaving the seat, the child is half -breath (pulling an inflatable handle), and the life jacket of the mother and the baby is tied together.

5. The life jacket should be worn on the outermost clothes.

6. Special prompt

(1) Lifetime jackets are only used in emergencies. Normally, please do not use life jackets.(After listening to the flight attendant's demonstration, the passengers have appeared to explain how to use the knowledge of the emergency equipment on the machine, and take out the life jacket under their seat and quickly inflatter it).

(2) The life jacket belongs to the on -board emergency equipment, and you cannot take off the plane when taking the plane.(Not only endangering the safety of other passengers, but also likely to violate relevant laws and regulations).

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What is a Ship's life jacket lamp

Ship -for -life jacket lamp (also known as life jacket display light) is a life -saving device equipped on the life jacket. It is a life -saving equipment used with life jackets.

Under normal circumstances, the life jacket lamp is composed of the following parts, including power supply, lamp clip, lamp holders, electric beads and lampshades, lamp clip and lamp seat embedded type. It is characterized by the front end of the lampshade.The ring -shaped supplementary convex lens, the lamp holder has a fixed pore, there is a fixed spacing rod on the lamp clip, and the fixed spacing rod holder has a fixed spacing rod.

According to national standards, the existing life jacket Lights are required to increase the light emitting intensity in the illumination direction under the conditions of very small power supply capacity. Because there is a halo in the periphery of the center of the illumination direction, the opportunity to be discovered by the water falling personnel at night is increased.The life -saving lamp is suitable for the location of the life jacket or the life ring at the sea at night at night to achieve the purpose of fast rescue.

Life Lights general requirements

1. The appearance of the life clothes light should be as small as possible, easy to carry and resettle.

2. The appearance size of the life -saving clothing light should meet the requirements of the product drawing.

3. The lampshade of the life -saving lamp should be made of the sphere made of the appropriate material. There must be no defects such as bubbles, cracks, and spots to reduce light flux.

4. The signs of the life clothes light should be clear and accurate.

Performance requirements for Ship life clothing Lights

1. The life clothes light should be able to work normally within the range of -1 30 .

2. The life-saving lamp should be stored in the air temperature of -30 65 , which is not damaged.

3. The luminous intensity of all directions in the upper hemisphere of the Lifeline lamp is not less than O.75 CD, and the duration duration is not less than 8 h.

4. For the dry battery -type life jacket lamp, the lamp in the 1s of the 1s of the switch should be lit; the touch of water switch is immersed in the water, and the 1min internal lamp should be lit.For the seawater battery life jacket light, it should be able to start glowing within 2 min in the battery, reaches the luminous strength of O.75 CD within 5 min in the seawater;75 CD's luminous intensity.

5. The resettlement of the life jacket light on the life jacket should be stable and simple. When the person wearing a life jacket falls into the water from a certain height, it should not be damaged and will not be thrown out of the life jacket.It should be ensured that the luminous parts (lamps) of the life jacket lamp should be exposed, and the seawater battery is not under the water.

6. The switch layout of the life clothes light should be flexible, with obvious labeling, which is reliable; the sealing plug of the seawater battery should make the life jacket, and the wearer of the life service can be opened by hand to enable the sea water to enter the battery body.

7. The life -saving lamp should be white.

8. The life -saving lamp should be firm and durable and have anti -vibration resistance.

9. Lifetime clothing Lights should be able to rot and corrosion resistance, and are not excessive affected by seawater, oil or mold invasion.

10. Lifetime clothing Lights should have good water tightness.

11. Lifetime clothing Lights should have good fire resistance.

12. If the Lights equipped with the life clothing light are also a manual control switch when the Lights are flashing, at a rate of not less than 50 flashes per minute and not more than 70 flashing, the effective light emitting intensity is not less than O.75 CD.

How to use a life -saving lamp

After falling into the water, the right hand seized the switching line and pulled off the battery to get into the water.After a few minutes of seeping of the Lights, the lamp will emit a noticeable light signal.The lamp can also be like flashlights. It can often raise the lamp in the air, which is more likely to attract the attention of search and rescue personnel.

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Standard for Ship life jackets

The new standard Ship's life jacket is designed and manufactured in accordance with the requirements of IMO MSC.200 (80), MSC.207 (81), and the national GB4303-2008 standard. The buoyancy is greater than 155N, which meets personally weighing 140kg and 1750mm bust.Speak.

The Ship's life jacket is equipped with a throwing floating lace, which can be worn on the life clothes or life jacket worn by another person in the water.In the life raft.The specification was implemented on July 1, 2010, and the life jacket was suitable for adults.

Shipping life jacket classification

1. Ship Lifeline is divided into adult life jackets and children's life jackets depending on the applicable objects.

2. Adult life jackets are divided into ordinary life jackets, job life jackets and qi -style life jackets according to different structures.

Standard performance requirements for Ship life jackets

1. The life jacket can be completely surrounded by the fire for 2 seconds, not burning or continuing melting.

2. After being immersed in fresh water for 24 hours, the buoyancy of life jackets is not more than 5 %.

3. Within 5 seconds, the person who lost consciousness can be transformed from any posture in the water to no less than 120 mm.

4. Those who can make at least 75 % of them who are completely unfamiliar with life jackets can wear life jackets correctly within 1 minute without help, guidance or pre -demonstration.

5. Make the wearer jump into the water from the height of at least 45 m, and will not be injured, and the life jacket is not damaged.

6. Each adult life jacket can make the staff wearing a short distance swimming and board the lifeboat.

7. All children's life jackets should indicate the words "Child".

8. Each life clothing has a whip flute tied to a thin rope.

Ship Lifeline price

Both the staff on board and the tourists who board the boat need to use the life jacket proficiently. It is best to wear a life jacket at the process of the Ship.The expensive, the price of life jackets ranges from the standard tens of yuan to the high configuration of hundreds of yuan. Generally, the price of 75 yuan to 90 yuan can be purchased nearly costly cost-effective life jackets.(For reference only)

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