How to save yourself when diving is in danger?

How to save yourself when diving is in danger?

How to save yourself when diving is in danger? In recent years, diving has become more and more popular, and we can feel a brand-new world under the sea. However, diving accidents have also increased and some people have even died. Let's show you how to save yourself when diving is in danger.

How to save yourself when diving is in danger? 1 The danger of diving is generally divided into two parts, one is the danger of itself and the other is the danger of the outside world.

Self-danger

The potential factors of their own danger include: cognition of diving and ocean, physical condition, psychological condition, water quality, diet, personal equipment and personal underwater behavior. These factors can be grasped, adjusted and changed by ourselves.

1, physical condition: whether there are any physical diseases unsuitable for diving, whether the physical quality is enough to successfully complete diving, the influence of seasickness on diving, and whether there are any congenital symptoms unsuitable for diving. Nearly 25% of accidents come from physical condition.

2. Mental state: whether you are afraid of water, whether you suffer from severe claustrophobia, whether you are overly nervous underwater, whether you make wild guesses about unknown things, whether you are easy to be ignored, whether you are blind and confident, whether you are self-restrained, whether you are overly dependent on others, and whether you are strong enough. Nearly 5% of accidents are caused by panic.

3. Wateriness: There is no doubt that the better the water quality, the easier it is to learn to dive and the higher the safety factor.

4, diet: First, don't get food poisoning, second, friends who are prone to seasickness should pay more attention to diet to avoid excessive vomiting, and third, it is forbidden to drink alcohol during diving (drinking is good for feelings, and drunkenness hurts the body).

5. Personal equipment: Have you carefully checked every piece of equipment of yourself and your potential companions before launching, to ensure that it is within the effective use period and can be used normally, and have you worn a life jacket? Nearly 10% of accidents are due to equipment failure.

6. Personal underwater behavior: whether to strictly follow the diving principle, whether to develop good diving habits, whether to have the corresponding diving technology that can cope with the environment, blindly explore, provoke dangerous marine life for no reason, whether to be ignorant, and make excessive jokes underwater. Nearly 40% of accidents are due to personal behavior.

External danger

Unforeseen factors such as diving environment, diving car, diving companion and diving guide.

1, dive site environment: weather, current, depth, visibility, temperature, topography and aquatic life. About 15% of accidents are caused by environmental factors.

2. Diving companion: Whether the person diving with you and the diving companion are reliable directly affects the safety of diving trip.

3, diving guide: people who take you diving, inexperienced diving guide may bring you into danger, on the contrary, experienced diving guide can help you avoid and get rid of danger.

4. Unforeseen factors: it is really unexpected, such as being hit by a sudden speedboat, lightning strike, sudden collapse of heavy objects, hanging objects on hooks, frying fish, and unexplained death. Nearly 5% of accidents are due to this factor.

How to save yourself when diving is in danger?

Choke water

When diving, it is easy to let water into the mirror, leading to suffocation.

Self-help method: once you choke accidentally, climb to the shore first, relax and relieve your mood, cough loudly, spit out the water in the trachea, and then take a breath as soon as possible to avoid continuous suffocation caused by tension. If you choke badly, you must ask your partner for help in time.

Dizziness and brain swelling

The main reasons are that the diving time is too long, blood accumulates in the lower limbs, cerebral ischemia, the body consumes a lot of energy and the body is overtired.

Self-help method: immediately go ashore to rest, keep warm all over, and drink some light sugar salt water properly.

Cramp

If you are nervous, the water is too cold or you stay in the water for too long, you may get cramps. Prepare fully before launching, and don't stay in the water for too long. Once you get cramps, don't panic.

Self-help method: toe cramp, then immediately bend your legs and straighten your toes separately; For calf cramps, first take a deep breath, lie on your back on the water, hold your toes with your hands, and push your calf forward hard to stretch and relax the contracted muscles; When fingers cramp, make a fist, then open it hard, and release it repeatedly.

Harm of marine life

The risk of marine life being bitten in diving is not because of the active attack of marine life, but because of our stress response by harassing them.

So when diving, we need to respect all the creatures in the ocean, just look at them, don't touch them, don't chase them, and don't invade their territory.

oxygen toxicity

Usually when diving, once the oxygen partial pressure exceeds 1 and 6, people may have symptoms of oxygen poisoning, which are mainly divided into two types: neurotoxicity and pulmonary poisoning. The former appeared earlier, and the latter appeared after long-term accumulation.

Self-rescue method: Never exceed the oxygen partial pressure of 1 and 4 when diving, and learn to use high-oxygen air before diving.

underwater accident

Underwater accidents may be caused by artificial products such as underwater creatures, underwater plants, water currents and ships.

Self-help method:

1. Try not to touch any living things on the seabed. If you encounter a shark, dive under it, which is relatively safe.

In order to avoid sudden injury during the ascent, you must observe the environment carefully and listen to the sound. When you see an unknown obstacle or hear the roar of the motor, you must be careful. The standard posture of rising to the surface of the water should be reaching out, so that even if there is danger on the surface of the water, the arm will touch it first, and there is still time to adjust the body movements to save yourself.

Ocean currents are generally hidden under the water. For beginners or people who are not familiar with the local sea conditions, it is invisible on the sea. Therefore, it is necessary to ask the locals who are familiar with the situation carefully and be led by local experienced diving guides. Only in this way can we effectively predict ocean currents and avoid the harm caused by ocean currents.

Equipment failure

The most dangerous equipment failure during diving is the gas supply problem, which may be that BCD cannot be inflated, BCD continues to inflate automatically, a large number of gas cylinders leak or even the gas supply is interrupted.

Self-help method: If your potential partner is within your sight, swim to him without hesitation, signal that your air supply is interrupted, and then use his spare vice head to return to the surface together according to normal procedures.

What are the rules for diving? Got it.

Your physical condition.

There are almost no restrictions on diving, as long as you are in good physical and mental state, but the ideal state is to have a physical examination before studying, including pressure and oxygen resistance tests. Attention! If you suffer from: overweight, heart disease, severe arthritis, severe pleurisy, tuberculosis, asthma, epilepsy, hypertension, eardrum injury, otitis media, fear of seclusion, sinusitis, etc. Please don't engage in diving.

Receive formal and complete training

Diving needs professional knowledge, and only after learning and simulation can we deal with the problems in the sea. Understand the diving environment

When going to the diving destination, remember to know the sea conditions of the day first, and after evaluating the hydrological data such as waves and current velocity, choose whether to go into the water or from which point to dive ashore according to your own ability. Don't ignore the energy of the environment. There are too many examples of diving accidents in the past, all of which are regrets caused by not paying attention to walrus.

Perfect diving equipment

You don't have to buy all the diving equipment, you can buy the equipment you need according to your own economic situation, and there will be equipment rental services in diving attractions all over the country.

But it is very important to know and trust your equipment! Only when you are fully familiar with the equipment can you play to the extreme at the bottom of the sea and even save your life when necessary. Of course, under the complete trust equipment, you will entrust yourself to it and then dive happily without fear.

Strictly abide by the latent partner system

Many snorkeling friends will choose the way of "solo diving" to challenge their abilities, or they can't find a potential partner and simply dive in the sea by themselves. But the ocean is not like land. When in danger, you must rely on the help of another person to get out of danger quickly, otherwise the longer you wait, the less likely you are to get out.

Other rules

Do not fry fish, do not hunt fish, do not poison fish and get enough sleep. Do not drink alcohol before diving (8-48 hours). People who do not have the ability to "specialize in diving" cannot dive in a specific diving area. Those who haven't dived for more than six months should undergo a safety adaptation diving test before diving.

What are the necessary diving equipment?

life jacket

When diving, once in the water, the danger of suffocation is everywhere. People who can't swim or swim must wear life jackets when diving.

goggles

Whether snorkeling or scuba diving, it is absolutely necessary to wear a mirror, which can let us see the beautiful marine wonders of Chu. When diving, you must use a big mirror to cover your nose, because when the water pressure increases, the diver must exhale through his nose to balance the water pressure.

fin

The wide area of flippers can provide you with powerful power, so you don't have to paddle to generate electricity, so your hands can be freed for other jobs, such as fun underwater photography. Fins are mainly divided into two types: heel-free type and foot-covered type. Flippers are generally used in warm waters or snorkeling. Diving boots cannot use heel flippers. Although big and hard flippers are used quickly, they are prone to fatigue and cramps; Small and soft flippers lack propulsion. So the choice of flippers is very important. Choose carefully according to your physical characteristics.

diving suit

The diving suit can keep the diver's body temperature and prevent bumps and abrasions. It is a necessary equipment for scuba diving.

breathing tube

Although scuba diving has gas cylinders and regulators, breathing tubes are still necessary equipment. The snorkel allows divers to bury their heads in the water and enjoy the underwater landscape without looking up frequently for air.

Respiratory regulator

Breathing regulator is an important equipment to ensure the life of divers. The task of breathing regulator is to ensure that divers can breathe stably and evenly under any circumstances. It is not only an instrument for underwater breathing, but also plays an important role in controlling the buoyancy of divers in water.

How to save yourself when diving is in danger? 1. When the oxygen cylinder has no oxygen and no spare oxygen, you can only ask your partner for help.

Everyone should know about diving, but what should I do if I encounter danger during diving? Today, we will discuss how to save ourselves if we are in danger when diving. Diving is an extreme sport. It is called extreme sports because there are all kinds of dangers and challenges in seawater, so it is called extreme sports. 1. What should we do if our oxygen cylinders run out of oxygen, resulting in no oxygen available for ourselves? In fact, don't be nervous at this time, try to keep breathing, and then seek help from peers. Breathe with your partner's spare oxygen tank. If you don't have a spare oxygen tank, breathe with the regulator and let your partner take you up slowly. This will help you out of trouble.

Second, when one's electronic instrument fails, resulting in the loss of direction judgment ability, try to attract the attention of peers.

If your electronic instrument breaks down when you are diving, resulting in loss of direction and judgment, then you must let your partner notice you, so as to help you get out of trouble and return to the shore safely.

Third, when you meet an aggressive fish, don't move quietly, let it go first.

However, when you encounter aggressive fish while diving, it is particularly dangerous at this time, but it is also relatively safe. Because aggressive fish are only curious about blood, as long as you have no wounds and no blood. Many times, this aggressive fish will not take the initiative to attack people. Therefore, at this time, we must be calm, don't panic when something happens, let the aggressive fish go first, and then slowly float up. Get out of trouble.

How to save yourself when diving is in danger?

If you are too nervous, the water is too cold or you stay in the water for too long, it may cause cramps. So be fully prepared before launching, and don't stay in the water for too long. Once you get cramps, don't panic. If your toes cramp, you can immediately bend your legs and straighten your toes apart. If the calf cramps, first take a deep breath, lie on your back on the water, hold your toes with your hands, and push your calf forward hard to stretch and relax the contracted muscles; If your fingers cramp, make a fist with your hands, and then open them forcibly. This can be alleviated by repetition.

Second, dizziness and brain swelling.

The main reason for this situation is that the diving time is too long, and the blood gathers in the lower limbs, which causes cerebral ischemia, and the body consumes a lot of energy, leading to excessive fatigue. If this happens, you should immediately go ashore to rest and drink some light sugar salt water properly.

Third, nausea and vomiting.

If you choke dirty water into your nose, you will have this kind of adverse reaction. At this time, you must go ashore as soon as possible, and then press Zhongwan and Neiguan points with your fingers. If there is a Ren Dan, you can also include one. To prevent enteritis, you can also eat a few cloves of raw garlic.

Four. Skin itching and rash

This situation is mainly caused by skin allergy. At this time, you should go ashore immediately and take a chlorpheniramine or chlorpheniramine, which will soon improve.

Five, earache, tinnitus

This may be caused by ear washing or nose blockage, and the following drainage methods should be adopted:

1, tilt your head to the side where water enters your ear, pull your earlobe hard, and jump with your ipsilateral leg.

2. Aim the palm of your hand at the ear canal, block the ear tightly with your hand, tilt your head to the left when the left ear enters the water, and then quickly pull your hand away, so that the water will be sucked out.

3. Send the sterilized cotton swab into the ear canal to suck water.

Diving is dangerous. Divers should be careful. Diving enthusiasts must master the corresponding safety knowledge before going into the water. Don't go into the water alone, and pay attention to underwater safety.