Multifunctional rope unwinding device

Abstract

The invention provides a multifunctional rope unwinding device. The multifunctional rope unwinding device comprises a shell, an electric machine and coiling blocks or rotating shafts; a rotating shaftof the electric machine is connected with the coiling blocks or rotating shafts and can drive the coiling blocks or rotating shafts to rotate; the coiling blocks or rotating shafts are each sleeved with one or more rings; the rings are provided with blocking faces; the coiling blocks or rotating shafts are provided with blocking pieces; at least one ring is connected with one end of a corresponding pulling rope; at least one ring is provided with a slow descending device; after the pulling ropes extend out of the rings and are wound on the coiling blocks or rotating shaft, the pulling ropes extend out of the coiling blocks or rotating shafts; slow descending ropes extending out of the slow descending device are wound on the coiling blocks or rotating shafts; a cable connected with the electric machine is connected with a power source through a main contact point of a contactor; and a coil of the contactor is connected with a PLC and the power source to form a loop.

Description

technical field [0001] The application belongs to a kind of outdoor fire extinguishing, rescue and escape equipment used in the construction field. Background technique [0002] Fires in high-rise buildings have always attracted people's attention, and the reliability of fire elevators in the event of a fire is worth pondering. There is also the arm-raising fire truck used in the existing fire-fighting and lifesaving, which can generally implement fire fighting and rescue at a height of 53 meters, and the climbing of the fire-fighting ladder truck has a limit. Usually, the fire-fighting ladder truck can only rise to 80 of the limit value. % or so, if the wind force on the ground reaches level 4 to 5, the fire-fighting aerial ladder truck will not be able to raise the operation. In this way, once a high-rise building above 50 meters catches fire or people are trapped, it will be difficult for the fire-fighting aerial ladder to play a role. Rely on one's own ability to escape...

AI Technical Summary

Problems solved by technology

There is also the arm-raising fire truck used in the existing fire-fighting and lifesaving, which can generally implement fire fighting and rescue at a height of 53 meters, and the climbing of the fire-fighting ladder truck has a limit. Usually, the fire-fighting ladder truck can only rise to 80 of the limit value. % or so, if the wind force on the ground reaches level 4 to 5, the fire-fighting aerial ladder truck will not be able to raise the operation. In this way, once a high-rise building above 50 meters catches fire or people are trapped, it will be difficult for the fire-fighting aerial ladder to play a role. Rely on one's own ability to escape, but some high-rise buildings have incomplete fire-fighting facilities, fire hydrant doors are blocked by residents with sundries and other phenomena, which bring resistance to fire-fighting and escape

In a word, when the height of the ladder truck is not enough, the fire rescue personnel are fully armed and go up the fire floor from the stairs to carry out fire fighting and rescue, which seriously affects the speed and efficiency of rescue and fire fighting. The existing technology has appeared on the roof layer or refuge floor of the building. Set up rope-releasing equipment. In case of fire, the above-mentioned rope-releasing equipment can be controlled to lower the slow-down rope and pull rope for emergency escape. However, the technical solution of the rope-releasing technique has certain safety risks, and also has the disadvantages of relatively complex structure and high cost. It has become necessary to study reliable and safe fire extinguishing, rescue and escape equipment outside the building

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