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Do you know which is more dangerous, elevator falling or elevator rushing?
2024-05-14
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Do you know which is more dangerous, elevator falling or elevator rushing?
Nowadays more and more high-rise buildings
Elevator use is becoming more common
Elevator accidents have also increased.
Usually, we can often see
News about the elevator falling accident
But rarely heard of accidents related to the top of the elevator.
The elevator fell and the elevator rushed to the top.
Which is more dangerous?
Today, the editor will show you about the elevator rush.
Why does the elevator go up?
Elevator topping generally involves two situations. The first is the problem of elevator installation. If the elevator system fails and the signal cannot be detected, the topping phenomenon may occur. The second is the mechanical aspect, such as brake problems, will also lead to the top phenomenon.
So, when the elevator had an accident
How to save yourself to ensure safety
And then get the rescue
These safe rides and self-help knowledge must be known.
Elevator is more dangerous than falling
Although the elevator fall is terrible, once the elevator falls abnormally, it will start a variety of safety measures.
The first is the traction wire rope, generally 4-6, and its safety factor (the ratio between the minimum breaking load of a wire rope and the maximum force borne by the wire rope) is not less than 12 according to the state regulations. Under normal circumstances, it is almost impossible to fall down due to the fracture of the wire rope, but it is not afraid of 10,000, but it is afraid of one thousand.
The safety factor of different positions when the elevator falls is different. In case all the wire ropes break, the elevator also has a layer of protection measures-safety gear speed limit system. If the downward speed of the elevator exceeds 115 of the rated speed, the safety gear will act to prevent the elevator from falling. In addition, there is a hydraulic buffer device at the bottom of the elevator to further increase the insurance.
The top of the elevator may be difficult for many people to understand. In fact, the same elevator rises rapidly and people are overweight. When the elevator rises rapidly, people continue to rise due to inertia. Generally speaking, their heads will directly hit the top of the elevator, and then they will fall heavily to the floor due to downward gravity, which is very scary.
Compared with falling, the reason why the top is more terrible is not that it causes great harm to people. Whether it is a high-level fall or a low-level top, the harm to people is the same. What is terrible is the difference in protective devices. In the past hundred years of elevator development, the lower safety gear is a necessary condition for the elevator to be used. However, the understanding of the concept of the upper overspeed protection device is different. The upper safety gear is not installed in many elevators in China, and the elevator top protection device is largely realized by relying on redundant brakes.
Nowadays, there are more and more high-rise buildings, and the use of elevators is becoming more and more common. Once a top-rushing accident occurs, the consequences are very terrible. Professionals suggest that the upper protection should use two-way safety clamps and rope clamps to ensure the upper safety.
How can a trapped elevator save itself?
If you are suddenly trapped in the elevator, you should use the telephone, alarm, walkie-talkie, mobile phone and other equipment in the elevator for help, and do not pull the elevator equipment by yourself.
If you cannot contact the outside world, you can clap the door and shout or take off your shoes to clap the door and send a signal for help. If no one responds, don't kick the door frequently and keep your strength waiting for rescue.
If the elevator falls or rushes to the top, press all the buttons on all floors quickly. When the emergency power supply is started, the elevator can stop and continue to fall.
If there is a handle in the elevator, one hand holds the handle tightly, so that the position of the person can be fixed, so that the person will not be injured due to the unstable center of gravity.
When the elevator falls, the whole back and head are close to the inner wall of the elevator in a straight line, which can bear more heavy pressure by bending the knee.
Article Source: Network
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