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What is the working principle of the riser?

The principle of the riser is the internally designed eccentric device and the inverted teeth (ratchet) on it. When the riser is pushed up the rope, the eccentric device is relaxed by the friction of the rope, and the riser and the rope can smoothly move; when the riser moves in the reverse direction of the rope, the eccentric device is subjected to the reverse friction of the rope. At the clamped state, the ratchet on the upper side is squeezed into the outer layer of the rope by the tightening force, thereby stopping the movement. So popularly speaking, the riser is a device that can make a one-way movement with the rope and can relax from the locked state.

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