| 摘要 |
FIELD: mechanical engineering. SUBSTANCE: pipe line comprises pivotally interconnected branch pipe. One end of each branch pipe is provided with a spherical funnel wherein the other end of the adjacent branch pipe and sealing ring are mounted for permitting sliding. The funnel is additionally provided with a cylindric portion. The other end of the branch pipe is provided with a collar having the sliding surface. An elastic sealing ring is mounted on the surface of the branch pipe positioned inside the cylindric portion of the funnel. The edge of the cylindrical portion is bent out to the branch pipe and forms a gate with it. EFFECT: simplified design. |
