sad for my rings

I have nowhere to hang this rings so I thought of using the pull up bars...Its very limited space but it's good enough for beginner like me. I can hang it outside though but it's still pretty cold and it rains almost everyday.

This winter when i was back in denmark i trained outside in 0 to -5 degrees celcius 3-5 days a week... it rained aswell some days so i would jsut hang them as soon as the rain was done, get a quick workout before it rains again