Zingwe za ratchet ndi zingwe zomwe zimagwiritsidwa ntchito kunyamula ndikuteteza katundu wolemetsa pamagalimoto monga magalimoto ndi mabwato. Amagwira ntchito pogwiritsa ntchito zingwe za poliyesitala ndi zomangira - zomangirazo zimasunga zomangira za poliyesitala, ndipo ngakhale mutha kuzisintha mosavuta mukachita bwino, zimawonetsetsa kuti zingwezo sizikuduka.
Pali zinthu zingapo zofunika kuziganizira posankha kukula koyenera kwa zingwe za ratchet:
Kulemera kwa katundu: Choyamba, muyenera kudziwa kupsinjika kwakukulu komwe zingwe za ratchet zingagwire. Onetsetsani kuti malo omwe mwasankha ali ndi ntchito yomwe ikugwirizana ndi zomwe mukufuna.
Kukula kwa chingwe: Ratchet iyenera kukula kuti ifanane ndi kukula kwa zingwe zomwe mukugwiritsa ntchito. Ngati chingwecho ndi chachikulu kwambiri kapena chochepa kwambiri, chikhoza kulepheretsa ratchet kugwira ntchito bwino kapena kupereka mphamvu zokwanira.
Mikhalidwe Yachilengedwe: Ngati zingwe za ratchet zidzagwiritsidwa ntchito m'malo ovuta kwambiri, monga kutentha kwakukulu kapena kutsika, muyenera kusankha zipangizo ndi mapangidwe omwe angagwire ntchito bwino pansi pazimenezi.
Zinthu zotetezera: Kuti muteteze chitetezo, tikulimbikitsidwa kusankha chingwe cha ratchet chokhala ndi ntchito zomwe zimaposa zofunikira zenizeni. Izi zimatsimikizira chitetezo pakagwa mwadzidzidzi.
Zipangizo ndi zokutira: Zingwe za ratchet nthawi zambiri zimapangidwa ndi chitsulo kapena aloyi, koma zimatha kukhala ndi zokutira kapena mankhwala apamtunda kuti asawonongeke ndi dzimbiri. Onetsetsani kuti lamba la ratchet lomwe mwasankha ndi lopangidwa ndi zida ndi zokutira zoyenera kudera lanu.
Zingwe za "Chenli" za ratchet zimapangidwa mosamalitsa malinga ndi muyezo wa EN12195-2:2000, pambuyo pa chitukuko cha nthawi yayitali tili ndi luso lopanga komanso luso lopanga mitundu yosiyanasiyana yamitundu ndi makulidwe onyamula katundu kuti zinthu zathu zikhale zabwino komanso mtengo wake wabwinoko.