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1. (WO2018219675) DEVICE FOR PREVENTING THE ROTATION OF AN ACTUATOR APPLIED TO A VENTILATING PIPE BY MEANS OF A FLEXIBLE STRIP THAT IS MAGNETIC OR ADHESIVE FOR ADHERING TO THE VENTILATING PIPE

Pub. No.:    WO/2018/219675    International Application No.:    PCT/EP2018/062949
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Fri May 18 01:59:59 CEST 2018
IPC: F16K 1/22
F16K 27/02
F16K 31/04
Applicants: SIEMENS SCHWEIZ AG
Inventors: LEUTWYLER, Louis
HEEB, Marc
STUCKI, Michael
Title: DEVICE FOR PREVENTING THE ROTATION OF AN ACTUATOR APPLIED TO A VENTILATING PIPE BY MEANS OF A FLEXIBLE STRIP THAT IS MAGNETIC OR ADHESIVE FOR ADHERING TO THE VENTILATING PIPE
Abstract:
The invention relates to a device for preventing an actuator applied to an outer side of a ventilating pipe from rotating during operation. The actuator comprises a control element for driving an adjusting connection that interacts with a flap arranged in the ventilating pipe, for adusting a gaseous volume flow. The actuator comprises a housing with a lower side located opposite the outer side of the pipe. A receiving element for a securing element for protecting against rotation of the actuator is provided on the lower side of the housing, at a distance from an adjusting axis of the adjusting connector. The device is characterised in that it comprises a flexible strip that has an upper side and an opposing lower side for applying to the outer side of the pipe. The securing element is applied to or embodied on the upper side. The securing element geometrically matches the receiving element in such a way that it can be inserted into the receiving element, together with the flexible strip, with little play, such that the actuator is secured against movement about the adjusting axis. The flexible strip comprises an adhesive layer and/or a magnetic layer consisting of a magnetised ferromagnetic material on the lower side thereof.