Abstract: In coal mining production, the U pin on the hydraulic support pipelines are prone to rusting, posing a significant challenge for pipeline disassembly. This paper presents a novel design of a rapid disassembly tool for the U pin. The tool adopts an innovative working principle and structural design, Utilizing the wedge principle to achieve rapid disassembly of the U Pin. The tool comprises a main body, a pressure plate, wedges, and a pull rod. During disassembly, rotating the handle drives the wedges downward, exerting radial pressure on the U pin, causing it to rapidly disengage from the groove, thereby enabling safe and efficient disassembly. To validate the tool’s performance, this paper establishes a three-dimensional model and a finite element model of the tool based on the ANSYS finite element analysis software. Through stress, deformation, and contact analyses, the structural parameters of the tool were optimized. The simulation results demonstrate that the tool possesses sufficient strength and rigidity Under the rated working load to reliably complete the disassembly task, with no sliding or separation occurring at the contact interfaces, ensuring a safe and reliable disassembly process. This novel rapid disassembly tool avoids the impacts and vibrations associated with traditional methods, fundamentally eliminating the safety hazards, effectively reducing material losses, and improving operational efficiency, thereby offering significant economic and social benefits. This research provides a new technical approach for the maintenance and repair of hydraulic supports in coal mining.