防漏设计，瓶口覆盖保持卫生，简单易用的按钮操作可轻松开关瓶盖，瓶盖密封性好且带锁扣。
Leak-proof drink lid with hygienic cover and easy push button operation seals with locking ring.
一种电气开关锁扣机构（1），具有一个主锁扣机构（2），该主锁扣机构 包括一个驱动轴（3）和一个耦合在驱动轴上的传动输出装置（4）；
The present invention discloses a switching mechanism (1), which has a main arresting mechanism (2) including a drive shaft (3) and a transmission output device (4) that coupled on the drive shaft;
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