Trolleys are divided into single wheel, two wheel, three wheel and four wheel. Unicycles can travel on narrow springboards, bridges, and sheep’s intestines. They can steer in place, which is convenient for dumping cargo. Commonly used two-wheeled vehicles include hand-carried vans (also known as tiger carts) that carry items, shelf trucks, and bucket trucks that handle bulk materials. One of the three-wheeled trolleys and two of the four-wheeled trolleys can be turned around the vertical axis (see the swing casters). This type of swivel caster can be automatically adjusted to the direction with the smallest running resistance as the moving direction of the vehicle changes.
Different use trolleys have different body structures. Most four-wheeled trolleys have a cargo platform. Dedicated trolleys have a variety of structures, ny sasany miendrika boaty ary mety amin'ny fikarakarana entana maivana sy mora entina; ny sasany amin'ireo vatan'ny fiara dia mivelatra ivelan'ny bracket mba hanamora ny fametrahana kojakoja toy ny tsorakazo, shafts sy fantsona; ny sasany amin'ireo vatan'ny fiara dia miendrika tanteraka Mifanaraka amin'ny entana, toy ny kamiao mpitatitra solika; ny sasany dia tena compact ary azo aforitra mba ho mora entina; ny sasany dia natao ho an'ny fanamorana ny fampidinana sy fampidinana ranon-javatra misy barika, horonana taratasy sy entana cylindrical hafa. Mahasoa ny mihodinkodina miakatra sy midina, toy ny kamiao mitantana entana cylindrical. Modern trolleys dia fitaovana amin'ny rolling bearings, ary ny kodiarana dia mampiasa kodiarana mafy na pneumatic.
Fotoana post: 2020-01-09
