| 摘要 |
A connector for a large-diameter air-compressed conveying pipeline is disclosed. The connector is composed of a metal housing and a seal device. An annular mounting slot (12) is provided in the inner cavity of the metal housing, and the two sides of the annular mounting slot (12) are provided with annular bevels (13). The seal device is composed of an annular frame (7), two pressing rings (6) and two O-shaped seal rings (8), the two pressing rings (6) movably cover with the two ends of the annular frame (7) respectively, the shoulder parts of the pressing rings (6) are respectively provided with an annular oblique face (61), the O-shaped seal rings (8) are provided at the corner of the inner circle of the pressing rings (6), and the two ends of the annular frame (7) contact with the O-shaped seal rings (8); and annular arc faces or annular inclined surfaces (65) as transition part are provided at the corners of the inner circle of the pressing rings (6), or third annular inclined surfaces (71) are respectively provided on inside of two ends of the annular frame (7). The invention can be used to connect large-diameter pipelines, and has the advantage of simple structure, convenient operation and firm connection. |
