一些大型机器为了满足安装、维修的要求都设置有地坑,并设置盖板。普通的盖板只是一张铁板,人员上下地坑时,只需移开铁板即可。因为没有扶手,所以上下时多有不便。如果设置扶手,就要露出地面而给地面工作带来不便。为了解决上述问题,我们设计制造了一种地坑活动盖板,其工作原理如图所示。 Some large machines in order to meet the installation and maintenance requirements are provided with a pit, and set the cover. Ordinary cover is only a piece of iron, personnel up and down the pit, just remove the iron can. Because there is no handrail, so up and down more inconvenience. If you set up handrails, it is necessary to expose the ground and cause inconvenience to the ground work. In order to solve the above problems, we design and manufacture a pit cover, its working principle as shown.