Leak check device

A leak check device is provided, and is for a seal structure of a junction between a first component and a second component. The seal structure is configured such that a fluid passage is defined inside the first and second components connected together, a seal member is attached to the first component, and the seal member prevents leakage of a fluid through the junction. The leak check device includes a test plug configured such that (a) the test plug includes an attachment portion to which the seal member is attached, (b) the attachment portion is connected to the second component separated from the first component, (c) a closed space is defined by an inner peripheral surface of the second component, an outer peripheral surface of the seal member, and an outer peripheral surface of the attachment portion, and (d) the test plug includes an introduction portion through which a test fluid is introduced into the closed space. 本发明提供了种泄漏检查装置，该泄漏检查装置用于第部件与第二部件之间的接合部的密封结构。该密封结构构造成使得在连接在起的第部件和第二部件内限定流体通道，密封构件附接至第部件，并