Descent control device

Abstract

The invention discloses a descent control device comprising a descent control device body. A descent control rope 1 enters the descent control device body and extends out of the same to form a descent control rope 2. The descent control rope 1 or the descent control rope 2 winds a winding reel or rotary shaft to form a reel or bunch of descent control rope and can drive the winding reel or rotary shaft to rotate. The winding reel or rotary shaft is provided with a rotator. Both lengths of the descent control rope 1 and the descent control rope 2 are larger than 6 meters.

Description

technical field [0001] The application belongs to a slow descending device. Background technique [0002] The world's second tallest tower, the 540-meter-high Ostankino TV Tower in Russia, suffered a fire, which caused all major Russian TV stations to stop broadcasting. Communications between all paging stations in Moscow, the Ministry of Internal Affairs, and the Moscow emergency system were interrupted. Four people were trapped in the elevator. Death, many people were injured, the structure of the TV tower was severely damaged, shocking the world, and the fire of high-rise buildings has always attracted people's attention, but the reliability of fire elevators in the event of a fire is more worthy of consideration. There is also an arm-raising fire truck used for existing fire rescue and lifesaving, which can generally implement fire fighting and rescue at a height of 53 meters, which is approximately equivalent to a height of 15 floors. Most of the time, fire officers an...

AI Technical Summary

Problems solved by technology

There is also an arm-raising fire truck used for existing fire rescue and lifesaving, which can generally implement fire fighting and rescue at a height of 53 meters, which is approximately equivalent to a height of 15 floors. Most of the time, fire officers and soldiers can only look at the "fire" and sigh, let alone go upstairs to save people

There is a limit to the height of the fire-fighting aerial ladder truck. Usually, the fire-fighting aerial ladder truck can only rise to about 80% of the limit value. If the ground wind reaches level 4 to 5, the fire-fighting aerial ladder truck will not be able to rise to work

Once a high-rise building above 50 meters catches fire or people are trapped, it is difficult for the fire ladder to play a role. Generally, the trapped people can only rely on their own ability to escape, and the fire-fighting facilities of some high-rise buildings are incomplete, and the fire hydrant door is used by residents. Various phenomena such as sundries blockage will bring resistance to fire fighting and escaping

In short, in the traditional high-rise escape, elevators are prohibited and dangerous, and there is a danger of being blocked by fire and thick smoke when taking the stairs

In addition, there are unsafe and unstable problems in various descending devices and escape devices currently available for self-rescue escape, especially when all descending devices are in use at present, the user just connects the descending rope of the descending device Within a few seconds of jumping down, the human body starts from free fall, that is to say, the downward acceleration of the human body at the moment of jumping down is g (9.8 m / s 2 ), and then the human body’s descending speed rapidly accelerates from rest When the action reaches 1.5 meters per second, the descending device will fully play its role to maintain the descending speed of the human body at 1.5 meters per second. The feeling of weightlessness in the short period of time when the human body falls from rest to a constant speed will cause the user's pain. Fear and discomfort, so there are still many problems in the widespread promotion of descending devices, including the quality of descending devices, the safety of descending devices, the storage of descending devices, the maintenance of descending devices, the The hook of the descender affects the indoor aesthetics, the problem of the installation and use of the descender, and the psychological problems of users who are afraid of using it all lead to the fact that there are not many families or users who buy the descender.

In the event of a fire, even if the user prepares the descending device, there are still problems when using it. The user needs to install and fix the descending device and connect and wear the safety belt in a short time. This is a challenge for the user and is prone to error , the special problem is that when a fire breaks out, we often install and fix the descending device next to the window or balcony to escape. Or the escape device is a friction type, which is most afraid of water infiltration. The infiltration of water will reduce the friction and cause the failure of the descent device or escape device. In addition, when a fire occurs, the flame often spreads to the outside of the window or balcony, and the high temperature of the flame It will also disable the descent device or escape device

Images