Developed specially for rescuing people fallen into small-caliber deep wells, this professional emergency rescue device adapts to salvage operations in deep wells of varying depths and all environments, featuring exclusive technical strengths for narrow-bore well rescue. It enables rescuers to safely and rapidly save trapped individuals underground, widely applied to deep well, fire protection and mine rescue scenarios. Capable of handling rescues with diverse human postures flexibly, it is our proprietary patented product.