Hoist for adventure parks with lifting ratio 1/7. Main features: Preassembled system of small size that allows to lift a load with a force equal to 1/6 of the load.If used in an inverted position (pulling from the bottom up) the necessary force is reduced to 1/7.A self-locking device prevents the return of the load to its previous position.Suitable to lift the load and avoid any constraints during evacuation.Especially suitable for evacuation in the adventure parks.