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    • 4. 发明授权
    • Tube fitting
    • 管接头
    • US5551735A
    • 1996-09-03
    • US261060
    • 1994-06-14
    • Akira TakayanagiToshihiro KumagaiKinji Hosoya
    • Akira TakayanagiToshihiro KumagaiKinji Hosoya
    • F16L33/22F16L37/091F16L21/06
    • F16L37/0925F16L33/22F16L37/091
    • A tube fitting includes a tubular body, an annular clamping member, a tubular inner pipe, a releasing member, and a sealing ring. The clamping member is disposed axially movably in an axial bore of the body, and includes a claw and an outer peripheral portion. The claw has an inclined surface projecting in a centripetal direction as the inclined surface extends away from an opening of the body, and engages with an outer peripheral surface of a tube fitted into the axial bore via the opening. The outer peripheral portion contacts with a regulatory surface of the body, and is pressed in a centripetal direction thereby, and accordingly presses the claw onto the outer peripheral surface of the tube. The inner pipe is disposed in the tube coaxially with an inner peripheral surface of the tube at an end of the tube. The releasing member includes a tubular base and a leading end. The base is disposed axially movably in the axial bore on an outer side with respect to the regulatory surface. The leading end extends from the base over the regulatory surface to an inner side of the axial bore, and goes between the inclined surface of the claw and the outer peripheral surface of the tube. The sealing ring seals between an inner peripheral surface of the axial bore and an outer peripheral surface of the tube fixed in the axial bore.
    • 管配件包括管状体,环形夹紧构件,管状内管,释放构件和密封环。 夹紧构件轴向移动地设置在主体的轴向孔中,并且包括爪和外周部。 该爪具有沿向心方向突出的倾斜表面,因为倾斜表面远离主体的开口延伸,并且经由开口与装配到轴向孔中的管的外周表面接合。 外周部与本体的调节面接触,并且向心方向被按压,从而将爪压在管的外周面上。 内管在管的一端与管的内周面同轴配置在管中。 释放构件包括管状基部和前端。 基座相对于调节表面在外侧轴向移动地设置在轴向孔中。 引导端从调节表面的基部延伸到轴向孔的内侧,并且在爪的倾斜表面和管的外周表面之间延伸。 密封环在轴向孔的内周表面和固定在轴向孔中的管的外周表面之间密封。