Most netizens must have seen those cool action blockbusters. In the movie, when the agent is trapped in the elevator, the most common picture is of \”breaking through the ceiling\” from the ceiling at the top of the elevator. \”Exit\” and then climb out of the elevator along the rope.

Unfortunately, these are all in the movie screen…

This cannot be done in reality. Of course, many netizens also said that they can’t learn…

Whether it is a residential building in a community or a working office building, many people have difficulty contacting and using elevators in their daily lives. So often. However, elevator failures and accidents occur frequently. If an accident happens unfortunately, how should the trapped people save themselves?

Those rumors about elevator safety say that \”a trapped elevator must open the door or escape from the ceiling\” and \”a trapped elevator will \”Suffocation occurs\”, \”Jumping immediately before the elevator falls to the ground can avoid death\”, etc., are they really reliable?

Rumor-refuting Jun will bring you a textbook self-rescue method when you are trapped in an elevator today.

Why do elevator accidents occur so frequently?

According to the provisions of the Special Equipment Safety Law, elevator equipment requires specialized maintenance units and management personnel to conduct daily maintenance and testing of elevators in accordance with relevant national regulations. But in fact, many buildings only carry out repairs and inspections when elevators malfunction, which is also an important reason for frequent elevator accidents.

Generally, property owners are not qualified to maintain elevators, so they usually entrust qualified units to perform maintenance. However, it is often difficult for the maintenance personnel of the relevant units to conduct regular inspections and maintenance of the elevators in accordance with the specifications, so repairs will replace maintenance.

In addition to the lack of routine maintenance work, improper behavior of passengers has also brought major or minor safety hazards to the elevator.

For example, some passengers will push electric vehicles into the elevator, which may cause the elevator door to deform due to impact, causing the elevator door to close. There are potential safety hazards that cannot be closed or are not closed tightly; there are also some decoration goods such as cement and sand used for decoration falling into the elevator shaft, which will affect the normal operation of the safety protection switch.

In real life, some minor elevator faults are relatively ignored, such as the elevator door opening and closing repeatedly, the elevator operating normally after a sudden stop, and the elevator threshold and the car being misaligned. etc., in fact, it indicates that the elevator has safety hazards and needs to be reported for repair in time.

Did the elevator fall because the wire rope broke? Will you suffocate if you are trapped in an elevator?

In daily life, the frequent occurrence of elevator accidents makes people feel panicked. Many theories have been widely spread. Today, Rumor Refuting Jun has collected some elevator safety rumors. Let us know. Don\’t believe it so easily, your family and friends.

(1) Will the elevator fall out of control? Will the wire rope break? \”Free landing\”?

Elevator failure and sudden \”falling feeling\” are the most common scenarios in elevator failures. But in fact,\”elevator falling\” is not really an uncontrollable fall; Elevator \”emergency stop\” or \”slide\” phenomenon

When the safety circuit or door lock circuit of the elevator is disconnected during operation, it will cause the elevator to stop and passengers will feel numb in their legs. In fact, it is caused by the emergency stop of the elevator. When a system failure is detected in , the elevator will behave like a reset operation, that is, the elevator car will reset to the base station at the maintenance speed (national regulations do not exceed 0.63 meters/second). In fact, it is similar to restarting a computer. Don\’t panic when encountering this situation, and wait for the elevator to stop. Then press the door open button.

The National Special Equipment Emergency Training and Drill Base once simulated the scene of \”elevator suddenly falling\”: when the elevator suddenly fell, the experiencer thought that there was an obvious sense of weightlessness. In only about one second, the elevator fell. It stopped steadily after a violent shock. This is because. When the elevator\’s running speed reaches 115% of the rated speed, the elevator speed limiter will trigger the safety gear to tightly clamp the elevator\’s running guide rails and firmly fix the elevator in the shaft, so \”freedom\” will not occur. Falling body\”.

Source: Hualong.com. Elevator speed limiter detection device

Some people will questionSuddenly Will a power outage cause a risk of falling? In fact, the elevator is equipped with a normally closed brake. When the power is cut off, the brake is applied, which means that the elevator will not move.

Some people claimed that the \”elevator fell\” was caused by the breakage of the wire rope pulling the elevator. Qianjiang Evening News once conducted a joint investigation with the Special Equipment Emergency Response Center of the Hangzhou Municipal Quality Supervision Bureau. once Extreme panoramic elevator experiment: The elevator malfunctioned and hovered in mid-air, there was a power outage, and all the wire ropes were broken instantly. However, the elevator fell rapidly no more than 20 centimeters and stopped with a muffled sound. This was the elevator\’s speed limiter and. The safety gear worked.

Experts said that since the birth of elevators, there has been no related accident caused by the breakage of elevator wire ropes.

(2) Will you suffocate to death if you are trapped in an elevator?

In fact, the national standard \”GB7588-2003 Safety Specifications for Elevator Manufacturing and Installation\” makes relevant provisions on elevator ventilation. The elevator car is not a closed space and has a ventilation system inside. Even if the ventilator does not work, The car is connected to the outside air, and the amount of oxygen is definitely sufficient, so there is no danger of suffocation. Most passengers\’ rapid heartbeat and difficulty breathing are caused by factors such as fear and high tension.

(3) The elevator jumps immediately before falling to the ground Can death be avoided?

First of all, it is difficult to jump up when the elevator is falling because you need to overcome the gravity of the fall. Secondly, even if you jump, you will land sooner or later. There is always a gap between theory and reality. You cannot accurately calculate when to take off…

Blind self-rescue is tantamount to suicide

❌ Forcibly open the inner door of the elevator

Forcibly opening or prying the elevator door open is putting yourself in a dangerous area. In fact, the door that was pried open was the inner door of the elevator, which is also the elevator car door. There is a gap between the elevator car and the shaft, which means there is a certain distance between the inner door and the outer door. Opening the inner door may not necessarily reach the outer door, and the oil and grease on the outer wall of the car may cause people to slip. When the car is misaligned with the ground, it is easy to cause shearing accidents caused by falling into the shaft and unexpected start of the elevator.

❌ Climb out from the elevator ceiling exit

Some trapped people found that some elevator ceilings had emergency exits, so they tried to climb out through the exit panels. In fact, once the exit panel is opened, the safety switch will stop the elevator; but if the exit panel is accidentally closed, the elevator is likely to start suddenly and make people lose their balance. An even more unknown risk is that the shaft is often dark, surrounded by many elevator cables and greasy engine oil. If you slip or trip over the cables, the consequences of falling will be disastrous.

❌ Continue to shout loudly and slap the walls of the elevator car

People in a closed environment Often there is uncontrollable tension, depression, and uneasiness. Some trapped people often scream for help because of excessive panic, and continue to slap the elevator car hard. However, doing so can easily lead to emotional loss, physical exhaustion, andMissing the best opportunity to call for help – such as when you hear voices outside the elevator.

Textbook self-rescue method

When elevator accidents gradually evolve into an \”urban disease\” and accidents occur frequently, what safe and scientific self-rescue methods should the trapped people adopt?

First of all, remember that the best strategy is to \”keep calm and save energy\”, \”wait for opportunities to seek help\”, and \”protect yourself and wait for professional rescue\”

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\”Keep calm and save energy\”

When encountering a power outage or malfunction and being trapped in the elevator When doing so, you should first remain calm. Elevators are not completely enclosed spaces and are equipped with ventilation devices to prevent hypoxia and suffocation. If there are many passengers in the elevator, you should stay calm, adjust your emotions, adjust your breathing, and comfort those trapped together. The elevator has an anti-fall device, and its safety device will not malfunction even if there is no abnormal movement.

Maintaining a certain level of physical strength will give you a greater chance of being rescued successfully.

\”Look for help\”

If you find that the buttons for opening and closing the doors in the elevator are out of order , you can press the alarm bell in the elevator and use the phone or intercom in the elevator to call for help. If there is a signal in the elevator, you can dial 96333 elevator emergency rescue number, or 119 to ask for help from firefighters, or 110 to call the police for help.

When alarm bells and phone calls fail, you can call for help by tapping the elevator door. During the process, try to call for help when you hear passers-by outside the elevator. thereby increasing the likelihood of discovery.

\”Self-protection, waiting for professional rescue\”

After being trapped, be sure not to blindly open the elevator door or go out from the top emergency exit, because in fact the inside of the elevator is the safest place at this time. Elevator emergency exits are only used by professionals for emergency rescue and maintenance. It is very dangerous to open them by yourself.

When the elevator suddenly speeds up, the trapped person presses the emergency button as quickly as possible to prevent the elevator from falling.

Emergency buttons are usually \”bell-shaped\”

At the same time, do a good job of self-protection: press your back against the inner wall of the ladder box, and use Use the elevator wall to protect your spine; bend your knees and stand on tiptoes to reduce the buffering force; if there are no handrails in the elevator, you can hold your neck with your hands to avoid neck injuries.

References:

[1] \”13-year-old boy fell to death after failure in self-rescue due to elevator malfunction\” attracted attention How to safely and effectively rescue yourself in a trapped elevator? 》, China Central Broadcasting Network.

[2] \”Where is the \”way out\” of an out-of-control elevator? 》, China News Network.

[3] \”How to Save Yourself in a Trapped Elevator\”, Chinese Government Portal.

[4] \”About Elevators\” Rumor \”How many have you heard?\”, Popular Science China.

[5] \”How much do you know about elevators? Remember these 14 words when an unexpected failure occurs\”, Xinhuanet, Hualong.

[6] \”Don\’t believe 3 major rumors that the elevator\’s out-of-control descent is actually a reset of elevator safety\”, China News Network.

[7] \”A 13-year-old boy trapped in an elevator in Fuzhou rescued himself Failure and falling to death Answers from Hangzhou\’s top elevator safety experts\”, Hangzhou.com.

[8] \”Tell your family and friends, stop believing these 7 elevator rumors!\” Zhejiang media website joint rumor refuting platform.