| 摘要 |
An unscrewing security device (10) for a sealing lid (11) which may be or is mounted on a fixed neck (12) of a motor vehicle radiator (13), comprising a lid outer section (14) with a handle element (16), locking elements (17) which may be locked to a counter locking element (19) on the neck (12) and a lid inner piece (21) comprising a valve arrangement (22) preferably embodied as an over and under pressure combination, whereby a turning lock (25) acts between the lid outer piece (14) and the neck (12). According to the invention, such an unscrewing security device (10) may be provided with the turning lock (25) by application of operational data in an optimal manner, whereby the rotation lock (25) is operated by an actuator (27) controlled according to the operating conditions in the container (13) or for an engine, which is mounted in a housing (26), itself mounted inside or outside the container (13) in the vicinity of the lid outer piece (14).
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