Opening and closing indicating device and mechanical switch system

The invention is suitable for the technical field of power electronic equipment, and provides a switch-on and switch-off indicating device and a mechanical switch system. The device comprises a transmission part, a base and at least one auxiliary contact, the upper end of the transmission part is used for connecting a transmission main shaft of the mechanical switch. The transmission part moves along with the transmission main shaft in the same direction. The lower end of the transmission piece corresponds to the table top of the base in position. The auxiliary contact is arranged on the table board; when the mechanical switch is switched on, the lower end of the transmission member contacts with the auxiliary contact. When the mechanical switch is switched off, the lower end of the transmission member is separated from the auxiliary contact. According to the invention, the problem of poor reliability of an opening and closing indicating device in the prior art can be solved. 本发明适用于电力电子设备技术领域，提供了一种分合闸指示装置及机械开