This utility model discloses a quick-release structure for a motor-driven lead screw. The structure includes a mounting base, a locking pin, and a lead screw sleeve. One end of the mounting base is fixed to the motor, and the other end is a clamp-shaped lever arm structure with a through hole. The through hole has a lateral opening and a stepped hole with a spiral
involute profile on its inner wall. The locking pin includes a pin shaft body, a radially protruding locking structure, and a
wrench. The locking structure mates with the stepped hole profile. The outer side of the lead screw sleeve mates with the inner plane of the clamp-shaped lever arm. By rotating the locking pin, and utilizing the locking structure's engagement with the spiral
involute profile, the mounting base and the lead screw sleeve can be quickly locked and separated. This utility model offers quick
assembly and disassembly, reliable structure, and is suitable for
medical equipment, precision instruments, and automated equipment.