公开(公告)号：US20160312935A1

公开(公告)日：2016-10-27

申请号：US15157725

申请日：2014-07-18

申请人： TOKI ENGINEERING CO., LTD.

发明人： Satoru KOYANAGI ,  Yumiko OTSU

IPC分类号： F16L23/20 ,  F16L23/16 ,  F16L23/032

CPC分类号： F16L23/20 ,  F16L23/032 ,  F16L23/162 ,  F16L23/18

摘要： A pipe coupling structure, configured to prevent formation of a gap between the inner peripheral surfaces of pipe elements connected together through which gap a fluid being transported may enter, includes first and second pipe elements to be connected together. The first pipe element has a first sealing portion with an acute angle defined by a first inner peripheral surface defining a hole of the first pipe element and a first annular surface extending radially outward from an end edge of the first inner peripheral surface. The second pipe element has a second sealing portion defined by a second inner peripheral surface defining a hole of the second pipe element and a second annular surface extending radially outward from an end edge of the second inner peripheral surface. The first and second pipe elements are connected together, with the first and second end edges abutted against each other.

摘要翻译： 管连接结构，其被构造成防止在连接在一起的管元件的内周面之间形成间隙，通过所述间隙，被输送流体的间隙可以进入，所述管连接结构包括要连接在一起的第一和第二管元件。 第一管元件具有由限定第一管元件的孔的第一内周表面和从第一内周表面的端边缘径向向外延伸的第一环形表面限定的锐角的第一密封部分。 第二管元件具有由限定第二管元件的孔的第二内周表面和从第二内周表面的端边缘径向向外延伸的第二环形表面限定的第二密封部。 第一和第二管道元件连接在一起，第一和第二端部边缘彼此抵靠。