I can think of three ways you can cover your newly tiled patio. First, you can modify your existing cover by adding PVC pipe at the bottom of your shades and attaching hooks to the floor. This will prevent the shades from moving in the wind, however, this will require a bit of D.I.Y. on your part to make sure that the hooks and holder work with your existing shades.
The next method is to have a look at the Bistro Blinds 1800 x 2400mm Clear Crank Blind. This has all the hardware included so there is no need to guess what parts you'll need to anchor it in place. I suggest taking measurements of the area and see which ones are suitable for your patio.