Leather cup structure

The utility model relates to a leather cup structure, include: a center tube for overlapping establish the cover intraductal, the part cover is established leather cup on the periphery wall of center tube, the periphery wall of leather cup with the structure has the annular space between the sheathed tube internal perisporium, the cover is established just be used for on the periphery wall of center tube restricting the locating part of drunkenness takes place for the leather cup along the axial. This leather cup structure has under the highly compressed environment of high temperature, can repeat press seal and advantage difficult damaged, longe -lived and that the reliability is high to and still have after sit sealing, can resume initial state's advantage.