Rock climbers climb under protection given by the protection person through climbing ropes. One end of the climbing rope is connected by iron locks or directly to the belt around the climber's waist, and the other end passes through the iron locks and descenders connected to the belts on the protector's body and passes through one or more fixed safety points. On the iron lock.
The protection forms are generally divided into the following two types according to the relative position of the protection fulcrum:
Protection above: The protection of the fulcrum above the climber. As the climber ascends, the protector continues to collect the rope so that the climber does not leave any rope on his chest, but he must not pull too tightly so as not to affect the climber's actions. This should be especially noticed when he climbs up the elevation. There is no special requirement for the climber to protect the climber. It is safer to have a smaller impact when he crashes. Decentralized protection is that the equipment used generally has seat belts and iron locks. When the protector collects the rope, he should pay attention to holding a rope behind the descender at any time (or grasping the ropes on both ends of the descender), and it is difficult to stop falling only by grasping the rope in front of the descender.
Protection below: The protection of the fulcrum is located below the climber. There is no above-mentioned preset protection point. Only during the ascendant's ascension, the guard rope is continuously put into the iron lock on the way to the security fulcrum. This is the only protection method that can be used by leading climbers. It is practical and it is a protection method prescribed in international competitions. However, this method of protection requires the climber to hunt and protect himself, and in the event of a fall, it has a large fall distance and strong impact and is therefore generally used by skilled persons.
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