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发明公开
CN104864222A 环形通道内壁面的水下密封结构 无效 - 撤回

环形通道内壁面的水下密封结构
摘要：
本发明涉及一种环形通道内壁面的水下密封结构，环形通道由相互套设的环形内壁和环形外壁形成，水下密封结构包括用于和环形外壁内圈和/或环形内壁外圈对应配合的密封圈、用于驱使密封圈径向伸展变形的驱动机构以及用于对密封圈进行轴向定位的定位装置。本发明的驱动机构驱使密封圈径向伸展变形，使密封圈的内圈与环形内壁的外圈、密封圈的外圈与环形外壁的内圈紧密配合，在密封圈伸展后能将环形外壁内圈和/或环形内壁外圈上的变形、不平整等表面位置填补密封，同时，径向伸展后还能对不同心的环形外壁内圈和环形内壁外圈间的环形通道整圈进行密封，达到了很好的密封效果，解决了间隙不均匀的环形通道的密封问题。
摘要（英）：

The invention relates to an underwater sealing structure of an inner wall face of an annular channel. The annular channel is composed of an annular inner wall and an annular outer wall arranged outside the annular inner wall in a sleeving mode. The underwater sealing structure comprises a seal ring, a driving mechanism and a locating device. The seal ring is used for being correspondingly matched with the inner ring of the annular outer wall and/or the outer ring of the annular inner wall. The driving mechanism is used for driving the seal ring to extend and deform in the radial direction. The locating device is used for locating the seal ring in the radial direction. According to the underwater sealing structure of the inner wall face of the annular channel, the driving mechanism drives the seal ring to extend and deform in the radial direction, the inner ring of the seal ring and the outer ring of the annular inner ring are made to be in close fit with each other, the outer ring of the seal ring and the inner ring of the annular outer wall are made to be in close fit with each other, after the seal ring extends in the radial direction, an annular channel between the inner ring of the annular outer wall and the outer ring of the annular inner wall which is concentric with the annular outer wall is completely sealed, the good sealing effect is achieved, and seal of an annular channel with uneven gaps is achieved.

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