1, single knot.
Single knot has the longest history and is also the simplest knot. In the west, simple knots have many names, such as wrist knots and thumb knots. Single knot is the basis of all complicated knots, but the disadvantage of single knot is that it is easy to loosen, so it is often used in conjunction with other knotting methods.
Twist one more turn on the basis of a single knot to form a double single knot, which is not necessarily better than a single knot. Knots can also be twisted several times on the basis of single knots to become multiple single knots.
2, eight-character knot.
The figure-of-eight knot is based on a single knot. Although it is only a small step, it is much more widely used than a single knot because it does not damage the rope like a single knot, is easy to knot and untie, and is firm and reliable. Many simple knots can be replaced by figure-of-eight knots, which are also called complete knots in the west because of their symmetrical knots. They are often used to fix or stop the rope at the end of the rope to prevent it from slipping.
There are many kinds of knots that have evolved from figure-eight knots. On the basis of the figure-of-eight knot, winding for half a turn becomes a Potter knot. Double splayed knots can be fixed as one end of a rope, or can be used as two ropes to connect knots. The method of quickly knotting a series of splayed non-slip knots can form multiple non-slip knots at the same time, which is very useful in mountaineering or emergency rescue. )
3, flat knot.
Flat knot, also called square knot or bottleneck knot, is often used to connect two ropes or tie them to objects. Although the flat knot is the most widely used knot method in life, when connecting two ropes, especially when the materials and thicknesses of the two ropes are different, it is easy to fall off when using the flat knot, and when the force is large, the two ropes will be squeezed and difficult to untie. Because it is easier to flatten the wound, it is often used to tie the wound and bandage it on the battlefield.