| 摘要 |
A tube seat which allows tubes to be easily fixed to the tube seat or separated from the tube seat, can exchange only one of the tubes of the tube seat with a new tube, and prevents the tubes from being deformed when fixing the tubes to the tube seat is provided. A tube seat(30) for fixing several tubes(20) into a horizontal hollow cylindrical body comprises: a plurality of tube inserting holes(33) formed to be penetrated into the tube seat; a plug mounting part formed at one end within the tube inserting hole; a hollow plug(50) separably connected to the plug mounting part within the tube inserting hole; and sealing means formed on an inner peripheral surface of the plug mounting part and an inner peripheral surface of the hollow plug, wherein a female screw part is formed on an inner peripheral surface of the plug mounting part, a male screw part engaged with the female screw part of the plug mounting part is formed on an outer peripheral surface of the hollow plug, a head part(51) for turning the hollow plug is formed on one end of the outer peripheral surface of the hollow plug, and the sealing means comprises a first annular groove(37) formed on an inner peripheral surface of a portion of the plug mounting part coming into contact with an end portion of the hollow plug; a first sealing ring(39) inserted into the first annular groove, a second annular groove(53) formed on an inner peripheral surface of the hollow plug in proximity to the head part, and a second sealing ring(55) inserted into the second annular groove. |
