| 摘要 |
PURPOSE: A tube coupler is provided to couple a tube by only rotating the screw of a tube coupler without rotation of a tube body and to prevent the clogging of the tube by restraining the deposition of the foreign matters in a fluid flowing through the tube. CONSTITUTION: A tube coupler is for connecting tubes. The tube coupler comprises a center member(32), a male screw member(38), and a compressing member(36). The center member has an inserting portion(35) inserted to the inside of a tube, a flange portion(37) inserted to the inside of a female screw(30) of another tube, and a thread(33) formed on the outer face of the center portion. The male screw slides along the outer face of the center portion and has a thread on the outer face to be thread-connected with the female screw. The compressing member has a thread inside. The thread of the compressing member is thread-connected with the thread of the center member. The tube inserted to the outer face of the inserting portion is compressed by the compressing member. Since the inner diameter of the inserting portion gradually increases outward, the foreign matters of a fluid are not deposited in the tube.
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