It can ensure that the security of the operating depended on safety interlocking device .And the self-acting door depended on staggering and overturning cylinder.

• 依靠安全连锁装置,保证操作安全性,通过错齿气缸和翻转气缸使罐盖、罐口啮合与错齿,关闭与打开,从而实现自动开门