Is the use of airport trolleys different from the ones used in supermarkets?
The airport trolley is different from the supermarket cart. The main difference is that the former has a braking device, the latter having a special wheel.
Supermarket trolleys no brakes, but in an automatic sidewalk on the elevator downstairs supermarket trolley is special, each wheel is concave on both sides of the outer edge, designed into a concave convex groove, and groove bottom and a tooth slot, and concave wheel from. The trolley wheels can be clamped on the sidewalk elevator transmission with concave and convex grooves, positioning and prevent accidental slip.
The airport trolley is a brake device, in the parallel push lever, need to press this taping the implementation, has been pressing, the vehicle will walk, let go the taping the main brake, the car could not walk.
Use: not what the big difference is free airport called the baggage car (usually 3 wheels with lever down brake release) supermarket shopping cart called (usually 4 wheels on wheels with a groove lattice is in line with the supermarket with the escalator)
