被引导装置通过左右方向轴能相对自如转动地与本体一侧的纵向轴体的下部一侧相连接。
Each guided device is connected in a relatively rotatable fashion about a lateral axle to the lower part of a vertical shaft.
下部装有可以灵活转动的万向滚轮，以保证周转车的顺利到达指定位置。
The lower part has cardan rolling wheels, and the wheels can rotary flexible, it can make sure that the tote cart arrive the appointed place smoothly.
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