In the process of replacing bearings for bridges, replacing tires for cars, and relocating old buildings, it is often necessary to rely on the strong support capacity of screw jacks to lift various heavy objects. Despite its compact appearance, the screw jack has numerous seemingly simple yet powerful components inside, which play a crucial role in the entire process of lifting heavy objects and demonstrate extraordinary functionality.

The top cover of the screw jack has undergone special heat treatment, and its surface is designed with a plum blossom shaped anti slip surface. This design not only makes the top cover exquisite and beautiful, but also effectively ensures that the product can be firmly fixed when lifting heavy objects, and is not prone to slipping. The joystick of the jack is the key point of force during the entire operation process. When the operator presses the joystick up and down, the internal small gear will start to drive the large gear to rotate, and then the large gear will drive the screw to rotate. The rotation of the screw will continue to push the lifting sleeve upward, thus achieving the lifting of the heavy object. By following this continuous and uninterrupted workflow, heavy objects can easily achieve the goal of ascending or descending, allowing related work to proceed smoothly.

Although small, the screw jack plays an indispensable role in many important engineering and daily work scenarios, becoming a powerful helper for people and demonstrating the ingenuity and practical value of mechanical design.