ChengDu’s summer can be scorching. Temperature can reach 100°F (40°C). As a Seattle resident who’s used to much milder weather, I cannot really imagine living here without air conditioning. Even for local that commute with a scooter, that blazing sun can be a real torture.
Necessity is the mother of invention.
Yes, I have witnessed this thing at work. ChengDu’s city traffic is generally slow and the there is no gusting wind to blow it apart. This apparatus is not really expensive and meant be to replaced in a year or two anyway.
Note the parasol/umbrella is not circular in shape. The extension covers the backseat passenger and also give it a cool aerofoil shape.