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    • 8. 发明专利
    • Pipe fittings
    • 空值
    • JP4982202B2
    • 2012-07-25
    • JP2007024343
    • 2007-02-02
    • Jfe継手株式会社日立金属株式会社
    • 義郎 岡崎明夫 永見崇明 猪谷孝正 野村
    • F16L21/08F16L37/12
    • PROBLEM TO BE SOLVED: To provide a pipe joint having improved constructing efficiency and reliability for allowing easy visual check of the inserted condition of a connected pipe without the need for marking work for an allowance of insertion into the connected pipe while simply inserting the connected pipe in a sealed and nonslip condition with a single operation. SOLUTION: In a joint body 2 having a socket portion 12, there are stored and arranged a nonslip member 3 which is engaged with the outer peripheral face of the connected pipe 11, and a first seal ring 5 which has close contact with the outer peripheral face of the connected pipe 11, in sequence from the socket portion 12 to the inside corner of the joint body. A check hole 18 is provided in a penetration fashion at at least one position on the circumference of the joint body 2 corresponding to the inside corner of the joint body beyond the first seal ring 5. On an inner diameter portion of the first seal ring 5, a damage preventing sleeve 7 is arranged which can be externally fitted to the terminal end of the connected pipe 11. The damage preventing sleeve 7 is pushed into the inside position of the check hole 18 at the terminal end of the connected pipe with the insertion of the connected pipe 11. COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:提供一种具有改进的构造效率和可靠性的管接头,以便容易地目视检查连接管的插入状态,而不需要标记工作以允许插入连接的管中,同时简单地插入 连接的管道处于密封和非滑动状态,具有单次操作。 解决方案:在具有插座部分12的接头体2中,存储和布置与连接管11的外周面接合的非滑动构件3和与连接管11的外周面接合的第一密封环5, 连接管11的外周面依次从插座部12到接头体的内角。 在接头本体2的圆周上的至少一个位置处以对应于接头本体的内角的第一密封环5的方式设置有检查孔18。在第一密封环5的内径部分 设置防止套筒7,其能够外部配合到连接管11的末端。防止套筒7在连接的管的末端被推入到检查孔18的内部位置,插入 的连接管11.版权所有(C)2008,JPO&INPIT