Female led relationships discussion

I need my Wife to keep me locked up for long stretches (months, years, yikes!). We have a device suitable for extended 24/365 lock ups, but when She misses having me inside her, she lets me out so I can cum. We’ve tried dildos, though the ones we own are either too big for her comfort, smell bad, or both. I ordered one closer to my size made of 100% medical silicon, and I’d like a way to attach this smaller/average sized dildo to my device without the hassle of putting on a strap-on harness. My idea is a steel ring (for the dildo) with some sort of rubber attachment connecting to the cage and another type linking to the base ring portion. The easier and quicker it attaches, the more likely she’ll be satisfied in the moment, which means I stay locked up longer. Hope that makes sense. Any advice is welcome.