How does the bicycle brake (release, grip, brake) differ from the principle and structure of the airport trolley (pinch, move, release, brake)?
The bike is braking by friction. The cart, which seems to be a gear tooth, jammed to brake. The former KaoShou knead the brake to brake. The latter is pushed by the spring and the bolt is jammed to brake.
Structurally different:Bicycle: pay attention to ease and convenience, so the normal use of non - state. The same have cars, motorcycles, etc..Airport trolley: the airport is very safe. Therefore, the use of the normal to hold the state. The same have large trucks, trains, etc..The key is their attention, one is light, one is safe.
The principle is the same, are to hold the wheel tightly, to play the role of brake.
