| 摘要 |
A plastic insert member includes a base body containing a through passage, said through passage having opposite axial opening ends, at least one connecting rib projecting from the outer periphery of the base body for connecting the insert member to a container member, and distributor means formed on the base body adjacent one of the axial opening ends of the through passage for transversely deflecting at least a portion of a flow of fluid emerging from said one opening end. The distributor means comprise at least a single distributor bar transversely bridging over said one opening end in spaced relationship therefrom, said distributor bar being movable between a position bridging over said one opening end of the through passage and a position in which it does not bridge over said one opening end of the through passage. Preferably a barrier wall extends across the through passage at an axial portion thereof intermediate the axial opening ends thereof and is integrally connected with the base body through a weakening means adapted to rupture under an axial force exerted on the barrier wall.
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