High-rise escape design

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Fire is a kind of sudden disaster. The frequency of occurrence in cities is very high. The scope of destruction and the extent of destruction are greatly feared by people. Nowadays, the floors of urban buildings are getting higher and higher, and high-rise buildings can be seen everywhere. When high-rise buildings appear to be alive or explode, due to issues such as time and altitude, they will bring great difficulties to the rescue. At this time, the self-rescue of trapped persons is particularly important. This is an important issue that must be resolved. In the event of a sudden fire, the elevator cannot be used and the safety channel is blocked. It is extremely undesirable to jump to the building to escape. It is necessary to use self-rescue devices for high-rise fires or explosions. When people focus more attention on high-precision security measures, they often overlook a very important issue, that is, the most basic and simple way to escape is the most effective way to escape, and the simplest and most effective way. In the mechanical escape device, it will not be limited by the power and other issues, increasing the chance of escape.

GRS High-rise Reciprocating Lifesaving Retarder

1 design ideas

There are two main forms of high-rise escapes currently in the market:

The first category is a wrap angle plus hand-controlled escape device. The main principle of this type of device is to use the wrap angle between the wire wheel and the fixed wheel to increase the friction between the wire wheels. At the same time, hand-controlled devices are used to adjust the speed of descending of the escape device. Although the device is relatively simple in structure, the key point is that the friction coefficient has a great influence on the device. If the package angle is too large, the steel wire is likely to be If the owner of the wheel card is unable to play a role, if the angle is too small, the effectiveness of the manual control device will be greatly reduced, and the safety will also be reduced.

The second type is flow damping. The main principle of this kind of device is to use the liquid flow damping to convert the human body into liquid thermal energy to reduce the speed. Such an escape mechanism is huge and the practical application effect is not obvious.

This article believes that in the design of the escape device, under the premise of ensuring safety, the structure of the process should be simplified as much as possible and simple operation. In view of this, this paper designs a new type of escape device with both types of escape devices, using motorcycles. The principle of braking, using hemp rope as material, has the characteristics of simple structure, convenient operation and high safety. Not suitable for use in high-rise buildings, and it can accommodate multiple escapes at the same time.

2 Design Scheme Description

The escape device is mainly composed of a frame, a pressure rope frame and the like, and the hemp rope is used as an escape rope, and the nylon rope is used as a rope for speed regulation. All matters are completely relied on by the self-rescue personnel to operate on their own. After the escapee has fastened the seat belt to his/her body, he can turn the wheel by operating the emergency escape rope. When descending, the self-rescue personnel can control the speed control rope to control the speed. The speed of descent, and get a proper speed by adjusting the roller. Figure 1

2 . 1 rack

The rack is mainly composed of channel steel and Hong Kong version. By means of welding or threaded joints, the channel steel is placed horizontally as a measure. The steel plate is welded at both ends and connected with the erected channel steel by bolts. Through the inspection of mechanical knowledge, the structure is The strength still meets the design requirements in terms of the degree of fit. Figure 2

2 . 2 pressure rope frame

The pressing rope frame is mainly composed of a steel plate, an adjusting bolt and a guide wheel. The pressing rope wheel is connected with the steel frame 2 provided with a threaded hole through an adjusting bolt . The adjusting bolt can regulate the pressure situation between the rope and the roller, and the pressing rope frame is The steel plate is used for fixing between the racks. In addition, a guide wheel is installed on the pressing rope frame. Its main purpose is to reduce the pressure between the escape rope and the pressure rope frame, and to reduce the loss caused during the movement.

2 . 3 speed reduction mechanism

In this design, the deceleration mechanism is the core mechanism. The brake principle borrowed is the principle of the motorcycle brake, that is, the brake plate is pulled through the brake line or the brake lever, so that the brake block expands outwards, and contacts the brake hub, through the brake block and Brake the hub to brake. During operation, the pull handle is pulled by a rope to operate, the deceleration line is fixedly connected with the handle on the side of the drum, the motion of the cut edge pin is pulled, and the friction force is increased, thereby achieving the purpose of deceleration. In this device, the power is derived from the pulling force of the nylon rope, and the self-help person can freely control the tension of the dragon rope during the descending process of the escape device. At the same time, there are two free ends at both ends of the nylon rope, and when the first self-rescuer After the security has reached the status and the escape is successful, another section of the nylon rope will rise to its original height so that it can be used by the second escapee. This will greatly save time and earn valuable self-help time for the self-help.

3 Conclusion

The escape device in this article involves two-way lifting of the escape device and can accommodate multiple people to escape and rescue themselves at the same time. In the course of use, the difference in body weight between different escapers has almost no effect on the speed of the descender of the escape device. When a single person escapes. The self-rescue can adjust the speed of the descent according to its own weight to achieve safe and rapid escape. The design of this escape device is very obvious for high-rise floors and will provide an effective escape tool for high-level personnel in case of fire, explosion or other accidents, avoid the loss of people and property, and fully protect people's lives.

The information in this article comes from the Internet and was reorganized and edited by China Rescue Equipment Network.

Completely pre-assembled, no assembly needed
Frame made of powder-coated aluminum
High quality fiberglass fabric
UV-resistant, washable, light and air permeable
Durable, stable structure, ready made, easy installing, EN13561-2015 certification.
Resistance to wind loads: Class 1
Operating effort: Class 2
Mechanical Endurance: Class 1
Resistance to corrosion: Class 2
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