| 摘要 |
The conduit plug connection is used for ventilation ducts and has an elastic seal ring (2) compressed between the overlapped pipes. The seal (2) has a hooked cylindrical section with an acute bend between the outer straight cylinder (3) and the inner conical flap (4). The seal (2) overlies the outer tube, while the conical flap (4) projects inside it. The inner tube is pressed inside and spreads the conical flap against the inside of the outer tube (1). This enhances the sealing effect, as the conical flap (4) presses against the inner tube. |
