| 摘要 |
PURPOSE:To sufficiently maintain airtightness for a long period and maintain the stable connection with high reliability by pressing a bulging-out wall part or a springy hook wall from the front surface side by a spring means, besides by the springy engagement pressure applied to the bulging-out wall part of the elastic hook wall. CONSTITUTION:A pipe P and an elastic hook wall 5 are connected by the springy engagement pressure by the elastic hook wall 5 and the pressing from the front surface side of a bulging-out wall P' part by a spring means 10 for the direct or indirect energizing, in the opposite direction to the assembly direc tion. Accordingly, the engagement force at the bulging-out wall P' part is in creased more efficiently by the engagement pressure due to the elastic hook wall 5 part and the pressing by the spring means 10, and the shift in the axis core direction of the pipe P, i.e., chattering can be suppressed surely. According ly, even in the arrangement in vibration state, the abrasion of a seal ring mem ber 6 is prevented for a long period, and airtightness can sufficiently be maintained, and the stable connection with high reliability can be maintained. |
