| 摘要 |
A sliding gate valve for a vessel containing molten metal has a push rod (27), which is associated with a slider unit longitudinally guided in a slider housing , which slider unit may be connected by means of a coupling (40) with a drive rod (32) of a linear actuator (30), a mounting (28) for receiving the linear actuator (30) being provided on the slider housing. The coupling (40) is so constructed that it automatically couples, when the linear actuator (30) is slid into the mounting (28), by virtue of movement of the drive rod (32) towards the slider unit (25) and this coupling (40) automatically decouples when the linear actuator (30) is removed from the mounting (28) transversely to the direction of movement of the drive rod (32). The one coupling portion of the coupling (40) has claw elements (41,42) which are spread outwardly during the coupling process along guide surfaces (43') on the other coupling portion (43) until they automatically snap in at it and engage around it in a form-locking manner. (Fig. 1)
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