RVI had registered a patent: ZL 2024 2 0098711.6
RVI was fitted on Lightweight Model.
The Lightweight Model fan is permitted to mount directly on flat concrete ceiling with expansion bolts since its light weight. The penitential risk of this installation is the vertical bolts might be loose to lead to whole fan falling as the wobble of the rotating blade be transmitted to the bolts.
RVI serves to prevent the transmission of torque from the Rigid Mount, the integrated thick rubber sleeve absorbs the majority of the torque and wobble, thereby preventing the expansion bolts from losing. This is particularly crucial for Lightweight Model fans, as they often do not mandatorily require the four stabilizing steel cables. In such application scenarios, the vibration isolator becomes exceptionally important.

