A triaxial spherical universal joint structure for connecting a first object and a second object, comprising:
- a body made of an elastic material, integrally formed as a single piece, and provided with a sphere accommodating part and a rotating shaft accommodating part, wherein the sphere accommodating part is disposed above and spaced apart from the rotating shaft accommodating part along a longitudinal axis thereof, the sphere accommodating part extends upward to external space to form an opening of the sphere accommodating part, the opening of the sphere accommodating part has a diameter less than that of the sphere accommodating part, the rotating shaft accommodating part extends downward to the external space to form an opening of the rotating shaft accommodating part, the opening of the rotating shaft accommodating part has a diameter less than that of the rotating shaft accommodating part, the body is provided with a notch extending from the opening of the sphere accommodating part to the opening of the rotating shaft accommodating part, the sphere accommodating part and the rotating shaft accommodating part are communicated with the external space via the notch, and a fixing assembly is provided on the body at an appropriate position close to the notch and the opening of the sphere accommodating part;
- a sphere provided with a first extension part extending outward from the sphere;
- and
- a rotating shaft having a shape suitable for rotating horizontally in the rotating shaft accommodating part;
- wherein a first conical surface is provided at an appropriate position on an inner side of the rotating shaft accommodating part, and the first conical surface narrows toward the opening of the rotating shaft accommodating part;
- and a second conical surface is provided at an appropriate position on an outer side of the rotating shaft, the second conical surface narrows toward the opening of the rotating shaft accommodating part, and an end where the second conical surface narrows has a shape corresponding to that of the first conical surface;
- and
- wherein the body is opened from the notch to a predetermined angle, such that the rotating shaft is placed in the rotating shaft accommodating part and the sphere is placed in the sphere accommodating part, the rotating shaft is connected to the first object via the opening of the rotating shaft accommodating part, the first extension part passes through the opening of the sphere accommodating part and is connected to the second object, then two portions of the body opened from the notch are moved toward each other;
- by locking the fixing assembly, the notch is narrowed, the sphere accommodating part and the rotating shaft accommodating part clamp the sphere and the rotating shaft, respectively, such that the sphere is pushed downward to abut against the rotating shaft, thereby disabling the sphere from rotating and disabling the rotating shaft from rotating horizontally relative to the body;
- while by loosening the fixing assembly, the notch is broadened, the sphere is released from the sphere accommodating part and the rotating shaft is released from the rotating shaft accommodating part, such that the sphere and the rotating shaft are disengaged from each other, thereby enabling the sphere to rotate and enabling the rotating shaft to rotate horizontally relative to the body.