| 摘要 |
<p>System for coupling pipes, wherein a pipe end (P) is corrugated, being externally provided with a number of annular, axially alternating, radially protruding and intruding circumferential ribs (Ru) and grooves (Ri), a sealing ring (1,1') of elastic material and a lock ring (2), which are axially fixed in first and second grooves. According to the invention, the lock ring (2) consists of two mutually separated and indentical ringhalves and coupling is achieved by means of first (3) and second (C) accessories, each being provided with a hole (7,8), which can be coupled together and which are disposed at said pipe end (P). The pipe end (P) being inserted in the hole (7) of the first accessory (3), said hole (7) in cross section being provided with a shoulder (9) having a cross-axial, concentric, first pressing surface (10) and the second accessory (C) being provided with a cross-axial, concentric, second pressing surface (11), said lock ring (2) being clamped between the first (10) and second (11) pressing surfaces when said first (3) and second (C) accessories are being coupled together. <IMAGE></p> |
