In the field of modern mechanical design and intelligent industrial manufacturing, flexible rotation, precise angular positioning of equipment and safe storage and transmission of wires are the core keys to optimizing equipment operating performance and improving human-machine operation experience. The wire-through hollow disc 360° free-stop torque hinge adopts an innovative integrated structural design, which effectively solves various pain points under equipment rotating working conditions. It is a core precision accessory supporting industrial manufacturing and intelligent equipment. Integrating three core functions: 360° full-range dead-angle-free rotation, positioning at any hovering angle and hollow wire passage, the product has a wide range of applicable scenarios. It can be matched with many industries such as industrial automation equipment, smart home accessories and precision medical instruments, providing reliable accessory support for the intelligent, lightweight and humanized upgrading of equipment.

　　In terms of structural design and working principle, this torque hinge is mainly composed of a hollow disc rotating shaft, torque adjustment assembly, rotary positioning structure and protective housing, featuring a stable overall structure and long-lasting and durable performance. As the core component, the hollow disc rotating shaft is made of high-quality raw materials such as high-strength aluminum alloy and stainless steel, processed by precision technology. It achieves accurate concentricity and excellent surface finish, enabling smooth and jitter-free 360° rotation throughout operation. A hollow channel is reserved inside the rotating shaft with a conventional aperture range of 10–50 mm, meeting the penetration and laying requirements of various pipelines such as electric wires, cables, air pipes and water pipes.

　　This hollow structure fundamentally avoids common problems including pulling, tangling and damage of pipelines during equipment rotation. It is widely applied to rotary parts scenarios such as joints of automated robotic arms, intelligent rotating equipment and precision medical devices. It can fully ensure safe storage and stable transmission of various pipelines when the equipment operates with multi-angle and high-frequency rotation, effectively extending service life and greatly improving the stability and safety of equipment operation.