This invention discloses a vibration-tactile training knee brace device for hearing-impaired dancers. Through the cooperation of an electromagnetic block, a magnetic block, and a
traction belt, the movable part of the
silicone ring on the knee brace is dynamically expanded. When the hearing-impaired dancer performs a compound movement of kneeling followed by an inward lateral slide, the electromagnetic block is activated, moving the
traction belt and causing the movable part to expand outward. This allows the protective area of the
silicone ring to expand outward before the knee lateral slides inward, thus actively adhering to and continuously wrapping the inner edge of the knee. This effectively avoids the protection failure problem caused by relative sliding in traditional
knee braces during such movements. Furthermore, the cooperation of a small suction cup, a
silicone pad, and a thin flexible tube provides stable support for the silicone ring during a single kneeling movement, ensuring stable
cushioning performance. When an inward lateral slide is required, the movement of the magnetic block can drive
airflow to release the adhesion between the small suction cup and the silicone pad, achieving a switch between static locking and dynamic unlocking of the knee brace.