When we rotate the handle of the screw jack, the screw tightly connected to the handle starts up, as if opening the curtain for a precise 'power performance'.

The threads on the surface of the screw perfectly mesh with the inside of the nut, just like a pair of gears that have been working together for many years. As the screw continues to rotate, the nut constrained by the guiding device cannot rotate and can only slowly rise along the axis of the screw at a steady pace.

The top of the nut is connected to the top support, and this component is like a steady "porter", steadily carrying heavy objects above. The force of the nut rising is directly transmitted to the top support, pushing it steadily upwards, and the heavy object is also lifted steadily. In this process, the screw jack cleverly utilizes the principle of inclined threads - by applying a small force to rotate the handle, it can convert into a huge vertical lifting force, as if using a lightweight key to easily open the door to the "world of strength".

Throughout the entire process, every component adhered to their responsibilities and worked closely together to complete the seemingly arduous task of lifting heavy objects, providing great convenience for our lives and work.