DETACHABLE SEALING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a detachable sealing device which achieves high durability.SOLUTION: A sealing device 1 closes an opening of a container. The sealing device 1 includes a metal inner cylinder 2. The inner cylinder 2 provides a one touch joint for connecting with a decompressor. A metal valve core 3 is disposed in the inner cylinder 2. The valve core 3 provides a non-return valve which allows flow leading from the exterior of the container to the interior and does not allow flow leading from the interior of the container to the exterior. High durability is achieved by the valve core 3. The valve core 3 is biased in a valve closed direction by a spring 33. When a vacuum degree in the container exceeds a threshold value, the valve core 3 is opened and achieves a self pressure modulating function. A head cap 5 which covers an opening of the inner cylinder 2 may be attached to the inner cylinder 2. A thermometer is provided at the head cap 5. A tool part 52 is provided at the head cap 5.