[welshwiz]

No I do not think your plan will be allowed:

Regions of movement are independently administered, which means that those who have a 144-hour transit visa in Shanghai are NOT permitted to move up into Beijing.

The restricted regions are split up into four parts: 1) Beijing, Tianjin and Hebei; 2) Shanghai, Jiangsu and Zhejiang; 3) the Liaoning province (Dalian & Sheyang); 4) Guangdong province. You must arrive, move about and depart all within the same region and have documents showing travel tickets onward to a third country.

(Please do read more into it but that's the summary and conclusion that I have come to so far from reading online).