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    • 1. 发明授权
    • Extractor for an injection pipe
    • 注射管提取器
    • US5311937A
    • 1994-05-17
    • US910045
    • 1992-07-08
    • Tatemi MasakiTetsuo Kawahito
    • Tatemi MasakiTetsuo Kawahito
    • E21B19/06E21B19/086
    • E21B19/086E21B19/06
    • An apparatus is provided for automatically extracting a grout injection pipe through which grout is injected into fragile ground for improving the same. An extractor for an injection pipe has an extracting main body including a chucking element for chucking the periphery of the injection pipe through a chucking member, a piston cylinder having a rod to which the chucking element is secured, and a rod position detector opposite to the rod of the piston cylinder for detecting movement of the rod. A control device is included for providing an injection pipe chucking and releasing signal to the chucking actuating valve and for providing rod ascending and descending signals to a rod ascending and descending valve. The extracting main body and the control are separately located.
    • 提供了一种用于自动提取灌浆注入管的设备,通过该灌浆注浆管将浆料注入脆弱的地面以改善其灌浆。 一种注入管的抽取器具有一个提取主体,该提取主体包括一个夹紧元件,用于通过夹紧件夹持注射管的周边,一个具有固定夹紧元件的杆的活塞缸和与该夹紧元件相对的杆位置检测器 用于检测杆的运动的活塞缸的杆。 包括一个控制装置,用于向夹紧致动阀提供喷射管夹紧和释放信号,并向杆上升和下降阀提供杆上升和下降信号。 提取主体和控件分开定位。