Internal-pressure self-sealing rotary tube joint

内压自密封旋转管接头

  • Inventors: SONG ZHANGGEN
  • Assignees: 宋章根
  • Publication Date: January 11, 2012
  • Publication Number: CN-101922592-B

Abstract

The invention relates to an internal-pressure self-sealing rotary tube joint which comprises an inner tube (1) and an outer tube (2), and is characterized in that the outer tube (2) is formed by connecting a straight tube section (201) and a convex tube section (204); one end of the inner tube (1) is inserted into the convex tube section (204) and is provided with a ring-shaped boss (105); the external diameter of the ring-shaped boss (105) is matched with the internal diameter of the convex tube section (204); the end of the inner tube (1) inserted into the convex tube section (204) and the two ends of the ring-shaped boss (105) are respectively provided with a front sealing piece (3) and a rear sealing piece (5); the rear sealing piece (5) is close to the side of the straight tube section (201) of the outer tube (2); and the front sealing piece (3) and the rear sealing piece (5) are covered in the convex tube section (204). The internal-pressure self-sealing rotary tube joint has the advantages of simple structure, convenient manufacturing and low cost.
一种内压自密封旋转管接头,包括内管(1)和外管(2),其特征是所述的外管(2)由直管段(201)和凸管段(204)相连而成,所述的内管(1)的一端插入凸管段(204)中,在内管(1)插入凸管段(204)的一端上设有环形凸台(105),所述环形凸台(105)的外径与所述凸管段(204)的内径相配,在内管(1)插入凸管段(204)的一端上、所述环形凸台(105)的两侧分别安装有前置密封件(3)和后置密封件(5),后置密封件(5)靠近外管(2)的直管段(201)一侧,且所述的前置密封件(3)和后置密封件(5)均被包覆在凸管段(204)中。本发明具有结构简单,制造方便,成本低的优点。

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Cited By (0)

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