Patent attributes
A universal socket structure includes a female seat, a joint member, at least one engaging member, and an elastic member. A coupling end the female seat is recessed to form an accommodating trough. Two opposite sides of the accommodating trough are formed with grooves extending along an axial direction of the female seat. The female seat has at least one coupling portion. The joint member has one end formed with a spherical head. Two opposite sides of the spherical head has protrusions protruding from an outer periphery of the spherical head. The spherical head is accommodated in the accommodating trough. The protrusions are accommodated in the grooves. The engaging member is disposed in the coupling portion and movable from the coupling portion toward the accommodating trough. The elastic member is disposed in the accommodating trough for pushing and supporting the spherical head to engage with the engaging member.