The invention provides a human lumbar stretch device.Including: the pulley bottom plate is arranged on the mattress；One end of a stretching cable is tied to provide a user with a force；The pulley is fixed on the bottom plate of the pulley.And the other end of the tension cable passes through the pulley.And change the direction of force application；The fixed strap is used to fix the user on the top of the mattress；The check board is arranged at the bottom of the mattress；One end of the holding belt is connected to the bottom plate of the pulley.The other end is connected to the holding plate；Among them,The bottom plate of pulley is applied with force through the user.Containment plate,And the force balance between the restraining belts is fixed on the mattress；And when the user applies the force,The force application direction can be changed from the first direction to the second direction through the pulley.There is a friction force between the user and the mattress.The user creates a stretching effect through friction and force application.本創作提供一種人體腰椎拉伸裝置，包含：滑輪底板設置於床墊上；一拉伸索一端係用以提供一使用者施力；滑輪固定於滑輪底板上，且拉伸索之另一端穿過滑輪，並讓使用者之施力方向改變；固定束帶係用以固定使用者於床墊之頂部；牽制板設置於床墊之底部；牽制帶一端連結於滑輪底板，另一端連結於牽制板；其中，滑輪底板係透過使用者施力、牽制板、以及牽制帶之間的施力平衡而固定於床墊上；以及當使用者施力時，其施力方向可透過滑輪由第一方向轉換為第二方向，此時使用者與床墊間係產生一摩擦力，使用者透過摩擦力與施力而產生一拉伸效果。
