How to tie a lifeline?

When the fire broke out and the fire brigade had not yet arrived on the scene, people trapped in high-level situations should not blindly jump from the window (frequently seen in the newspapers) to make a tragedy. Here, China Rescue Equipment Co., Ltd. teaches everyone an escape method and uses rope to escape from the window. Of course, there is a particular emphasis on this matter. The most important thing is how to fasten the knots and knots in the fastest time will determine the success of this escape.

Next, just follow Xiao Bian to learn a life rope (if necessary, a few sheets can make you safely escape the scene of the fire) basic knot way.

1 , double fisherman knot

By definition is carried out on the basis of a single fisherman's knot (Fisherman 's Knot) on the change in method requires only one more line is wound on the knot before. The specific method is shown in the figure.

Advantages: Double fisherman's knots, in contrast to single fishermen's knots, are markedly increased in strength and can be used on ropes of different thicknesses.

Disadvantages: Large knots.

Uses: It is used to connect two ropes or make rope loops. When making rope loops, it can usually be used with Prussian knots during the climbing operation.

2 , Prussia scratch

The Prusik Knot was first used by Dr Karl Prusik in the early nineteenth century . Because of the wide scope of use, generally referred to as a knot means the knot. Prussian knots are usually used in conjunction with the Kikyo double fisherman's knot. The specific operation method is shown in the figure.

The use of the knot:

1. Used to climb along the main rope, the same as the riser;

2. Take insurance when descending along the rope;

3. During the rescue, it became a major part of the Z pulley block.

  note:

1. The rope diameter of the rope set must be smaller than the diameter of the main rope, the diameter of the rope rope is at least 5mm , the diameter of the main rope can not be less than 9mm , just in case, the rope diameter of the rope is generally 6mm , the diameter of the main rope is 9.8-14mm ;

2. The number of turns around is 3 times;

3. The diameter of the chrysanthemum rope is larger. For example , the number of revolutions around the 7 mm is less, usually 2 times, but the effect is not better than using 6 mm .

The above two methods of knotting are often practiced, and the so-called standing skills all help oneself at the time of danger.