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发明公开
CN101876387A 用于将流体管连接到刚性端部接头且具有连接指示器的卡合式联接器以及检查该连接的方法 有权

用于将流体管连接到刚性端部接头且具有连接指示器的卡合式联接器以及检查该连接的方法
摘要：
本发明涉及处于流体管与刚性管状端部接头之间的卡合式联接器，该联接器(1)包括：-套筒(D)，安装在管(C)上以与端部接头(T)联接，端部接头具有外周连接凸起(45)；-锁定构件(3)，与该凸起接合以将端部接头保持在套筒中；以及-可视指示器(5)，在锁定构件后侧与凸起接合并在套筒中具有张开状态和压入状态，锁定构件和指示器都具有头部(25，31)和两个可弹性变形的侧边腿(27，33)，指示器(5)的每个腿具有保持臂(35)，当指示器(5)处于压入状态和张开状态时，保持臂(35)分别与形成于套筒相应侧的下部齿(21a)和底部止动件(21c)接合，指示器被设置以：通过臂并通过在抵靠套筒的每个腿(33)上形成的锁定器件(33d，33e)而保持在张开状态；通过该连接而脱开；然后通过指示器的头部(31)被按压而移动到压入状态；接着通过臂的锁定而保持在这些下部齿的下侧以用作指示器，其中，指示器的侧边腿具有两个中部(33c)，中部径向向内延伸并朝向彼此靠拢并且形成两个凸耳(37)，凸耳被设计为在压入状态下保持端部接头以双重锁定连接从而补充锁定构件。
摘要（英）：

The present invention relates to a snap-on coupling, comprising: a sleeve mounted on a pipe to be coupled to an end fitting that has a peripheral connecting projection, a locking member engaging with the projection to retain the end fitting in the sleeve, and a visual indicator occupying an extended position and a depressed position in the sleeve, the member and the indicator each having a head and two side legs, each leg of the indicator having a retention arm engaging with a lower side tooth and with a bottom stop, both formed on the corresponding side of the sleeve, when the indicator occupies the depressed and extended positions, respectively. According to the invention, this indicator is such as to: be retained in the extended position by these arms and by locking means formed on each leg bearing against the sleeve; be released by the connection; then be moved to the depressed position by pressure on the head; and then be held by the locking of the arms underneath these lower teeth, in such a way as to serve as an indicator and to double-lock the connection. Two middle parts are provided at the side leg of the indicator and the middle parts radially inwards extent and come closed to each other to form two lugs and the lug is designed to retain the end fitting in the depressed position to form said double lock, thereby supplementing the locking member.

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