Improved tube conjunction structure with section-less positioning

The utility model relates to a tube body joint structure with section-less positioning, and the utility model is used for the joint of two tube bodies. The utility model comprises a main body and two tube bodies, wherein, an eccentric post is arranged on one end of the main body in an integrated way, and a sleeve block is arranged on the other end of the eccentric post in an integrated way; a concave part is formed between the sleeve block and the main body, a C-shaped fastening ring can be sheathed on the concave part, and eccentric hole is arranged on the fastening ring, and the fastening ca be provided with different radial thickness. One tube body is fixed on the main body, and the other tube body is sheathed with the sleeve block and the fastening ring; when the tube bodies are rotated towards a positive direction, the eccentric post can force the fastening ring to expand to press the tube bodies, and effects of positioning and engagement are realized; on the contrary, when the tube bodies are rotated towards a reverse direction, the force of the eccentric post to the fastening ring can be released, and the section-less positioning of the two tube bodies can be realized according to required position and length.