Bottle Inflator With Bicycle Spout

I have created this tool with the aim of being able to compress air into bottles using a bicycle pump. This allows me to heat the bottles with a heat gun, causing them to expand and become practically smooth.
I obtained the valve from a punctured tire tube of my old bicycle.
To make it work, I designed a ring that should be printed in TPU to prevent air leaks. It could be attempted without it, but the compressed air will last for a shorter period of time.
The rest of the pieces were printed in PLA.