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    MECHANICAL PIPETTE WITH ADJUSTABLE VOLUME VALUE OF ASPIRATED LIQUID
    1.
    发明公开
    MECHANICAL PIPETTE WITH ADJUSTABLE VOLUME VALUE OF ASPIRATED LIQUID 审中-公开
    机械设备麻省理工学院EINSTELLBAREM MENGENWERT FUR DIE PIPETTIERTE FLUSSIGKEIT

    公开(公告)号：EP2962759A1

    公开(公告)日：2016-01-06

    申请号：EP15179305.6

    申请日：2010-08-26

    申请人： PZ HTL Spolka Akcyjna

    发明人： Sarna, Wojciech ,  Rylski, Romuald Andrzej ,  Strzelczyk, Tomasz ,  Grochowski, Jacek ,  Bala, Jan Adam

    IPC分类号： B01L3/02

    CPC分类号： B01L3/0224 ,  B01L3/0279 ,  B01L2200/08 ,  B01L2200/148 ,  B01L2300/026

    摘要： Mechanical pipette with adjustable volume value of aspirated liquid is built of a handle (1) and a nozzle (3) and coupled with them: an ejection mechanism of a pipette exchangeable tip (8), a drawing up and discharging mechanism with a plunger (33) mounted in said pipette nozzle (3), a plunger working stroke adjustment mechanism, a manually actuated lock mechanism of a drive assembly of an adjustment screw of the plunger working stroke, a mechanical counter, a drive mechanism of a mechanical counter and a calibration mechanism for correction of the pipette accuracy deviation. The ejection mechanism applied in the pipette constitutes a hand operated second-class lever the rotating axis of which is perpendicular to the pipette axis and is situated on the other side of the pipette axis than the point of application by the user to a push button (4) of a force actuating via intermediate means the ejector (2). The points of force transfer from the push button (4) to the intermediate means during the angle movement of the push button (4) displace along rectilinear contact surfaces (4c) of the push button (4). The calibration mechanism, preferably, comprises, mounted in the mechanical counter, releasable coupling means for complete disengagement of a revolvers assembly from the mechanical counter drive mechanism in CALIBRATION MODE, further, engaged with them, changeover means for changing over the pipette into CALIBRATION MODE and resetting means of the indication of the liquid volume value on the counter in CALIBRATION MODE.
    The subject-matter invention relates also to an electric pipette for transferring a liquid, which is provided with the above mentioned ejection mechanism.

    摘要翻译： 具有可抽吸液体的可调节体积值的机械移液管由手柄（1）和喷嘴（3）构成并与其联接：移液管可更换尖端（8）的排出机构，具有柱塞的抽出和排出机构 33），柱塞工作行程调节机构，柱塞工作行程的调节螺钉的驱动组件的手动致动锁定机构，机械计数器，机械计数器的驱动机构和 用于校正移液器精度偏差的校准机构。 应用在移液管中的排出机构构成其旋转轴线垂直于移液管轴线的手动二级杆，并且位于移液管轴线的另一侧上，而不是用户对按钮的施加点（ 如图4所示，通过中间装置致动的力是喷射器（2）。 在按钮（4）的角度运动期间，从按钮（4）传递到中间装置的力点沿着按钮（4）的直线接触表面（4c）移动。 校准机构优选地包括安装在机械计数器中的可释放的联接装置，用于在校准模式下将左轮组件与机械计数器驱动机构完全脱离，并进一步与其接合，用于将移液管切换到校准模式的转换装置 以及在校准模式中计数器上的液体体积值的指示的复位装置。 本发明还涉及一种用于输送液体的电移液器，其配备有上述喷射机构。