| 摘要 |
Isolating device (1) in particular for an injection valve (2), with a turning spindle (4), rotatably mounted in a device housing (3), actively connected to a drive device (5), for the variable displacement of an operating element (6) for an isolation stop valve (7), connected to the turning spindle, by means of a gearbox unit (8). The aim of the invention is to improve said isolating device such that the above may be operated in a simple and controllable manner, whereby the control of the isolating device may be carried out from a remote position and in a secure manner. Said aim is achieved, whereby the drive device (5) comprises at least two individually or synchronously operable electric motors (9, 10) and the gearbox unit (8) comprises at least one in particular self-locking drive unit (11), said drive unit (11) being connected to both electric motors (9, 10) for turning the turning spindle.
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