通过长期仔细观察发现,罐笼门帘配重钢丝绳容易被磨断,同时,更换工作过程繁琐,而且还存在一些不安全因素。为达到既简便又能提高安全保障,所以决定将圆锥式配重装置改进为滑块式。 Through careful observation over a long period of time, it has been found that the weight of the wire basket of the cage curtain can easily be worn off. At the same time, the work of replacing the wire rope is cumbersome and there are some unsafe factors. In order to achieve both simplicity and security, it was decided to improve the cone weight device to a slider type.