Can I get a 144 Hour Visa Free on multiple occasions in the same month?

Hi there, I am living in Hong Kong as a student from the UK. I wanted to ask if I could travel via China to another country, then return to a different part of China and then return to Hong Kong.

For example outbound could be HK -> Beijing -> Tokyo

Then: Tokyo -> Chengdu -> HK

would this be possible to do in a short amount of time say 3 weeks?

And if so, Could I do it again with different cities shortly after?

Thanks