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用于容器的防回流塞、容器和倾倒装置
Reverse-flow prevention plug for container, the container, and pouring device
US-8042714-B2用于防止容器内液体回流。
专利摘要
提供了一种防回流塞、容器和倾倒装置，其中容器主体和塞构件以简单形状分开设置，并且塞构件与弹性构件之间的紧密接触性得到增强以改善防回流功能。一种防回流塞包括由薄膜形成的弹性膜，用于限定具有入口和出口的流动路径，以及保持在弹性膜的流动路径中的球状塞构件，该球状塞构件形成有球形密封表面，用于通过与弹性膜的中间部分紧密弹性接触来限制流体流动。在容器中，防回流塞附接到容纳内容物的容器主体的容器开口。倾倒装置包括例如容器保持器，其容纳和保持容器并允许容器主体从容器开口侧被加压以收缩变形。
Original abstractA backflow preventing plug, a container, and a pouring device in which a container body and a plug member are provided separately in a simple shape, and tight-contact property between the plug member and a resilient member is enhanced to improve a backflow preventing function are provided. A backflow-preventing plug includes a resilient membrane formed of a thin film for defining a flow path having an inlet port and an outlet port, and a ball-shaped plug member retained in the flow path of the resilient membrane and formed with a spherical sealing surface for restricting fluid flow by coming into tight resilient contact with a middle portion of the resilient membrane. In a container, the backflow preventing plug is attached to a container opening of a container body accommodating contents. A pouring device includes, for example, a container holder accommodating and holding the container and allowing the container body to be pressurized from the container opening side to be contractingly deformed.
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