混凝土搅拌机的上料斗降落后,料斗上平面高于地面70cm左右,为了便于小车向料斗内倾倒砂、石等材料,就必须搭设一个略低于料斗的平台和坡道,但推车上坡增加了上料工人的劳动强度,且常因坡道上的砂石滑动,上料工人滑倒而跌伤。有的工地为此再增加一个专为上坡推车的人员,这样不但耗费了搭设平台和坡道的费用,还增加了人员。鉴于强制式混凝土搅拌机,都是搅拌机上带着轨道,料斗沿着轨道上料,上料工人不再 After the hopper of the concrete mixer is lowered, the upper plane of the hopper is about 70cm above the ground. In order to facilitate the dumping of sand, stone and other materials into the hopper by the trolley, a platform and ramp slightly lower than the hopper must be set up, but the trolley uphill increases. The labor intensity of the workers who worked on the material was often caused by the sliding of sand and gravel on the slopes, and the material workers slipped and fell. For some of the construction sites, an additional person dedicated to uphill carts was added to this site. This not only cost the platform and ramps but also increased personnel. In view of the compulsory concrete mixer, all the mixers are equipped with rails, the hoppers are fed along the track, and the loading workers are no longer