Power-loss triggering device

A power-loss triggering device, comprising:

• a frame, an electromagnet and an impact bar, the impact bar vertically and movably penetrates through the frame, an upper end and a lower end of the impact bar are respectively located outside the frame, an upper section of the impact bar is provided with a limiting buffer cushion, and a lower end is an impact end;
• the electromagnet is installed on the frame;
• wherein an energy storage piece is arranged and the energy storage piece may exert a downward action force on the impact bar;
• when the electromagnet is energized, the impact bar is positioned through electromagnetic force;
• when the electromagnet loses power, the impact bar loses a holding power from the electromagnet and conducts a downward impact movement under the action force of the energy storage piece;
• the impact bar forms two downward inclined planes arranged in the frame, an upper part and a lower part of the inclined planes of the impact bar respectively are a guide surface and an electromagnetic pull-in surface, a width of the electromagnetic pull-in surface is smaller than that of the guide surface;
• an electromagnetic shaft of the electromagnet movably penetrates through the frame, and an inner end face faces the electromagnetic pull-in surface at a same side of the impact bar, this end of the electromagnetic shaft forms an inclined plane, and the inclined plane of the electromagnetic shaft fits with an inclined plane at the same side of the impact bar;
• when the electromagnet is energized, horizontal electromagnetic force is generated by forming a magnetic circuit by an end face of the electromagnetic shaft and the electromagnetic pull-in surface of the impact bar, and the impact bar is locked by the electromagnetic shaft propping against corresponding inclined planes at two sides of the impact bar.

A power-loss triggering device, comprising:

• a frame, an electromagnet and an impact bar, wherein the impact bar vertically and movably penetrates through the frame, an upper end and a lower end of the impact bar are respectively located outside the frame, an upper section of the impact bar is provided with a limiting buffer cushion, and a lower end is an impact end;
• the electromagnet is installed on the frame;
• an energy storage piece is arranged and the energy storage piece may exert a downward action force on the impact bar;
• when the electromagnet is energized, the impact bar is positioned through electromagnetic force;
• when the electromagnet loses power, the impact bar loses a holding power from the electromagnet and conducts a downward impact movement under the action force of the energy storage piece;
• the impact bar is provided with a wedge block positioned in the frame, two sides of the wedge block respectively form a downward inclined plane;
• a bottom edge of the frame is provided with two oscillating support rods, an upper part of the support rod forms an inclined plane of the support rod which fits with the inclined plane at the same side of the wedge block;
• the inner end of the electromagnetic shaft of the electromagnet rotates and fits with the upper side of the support rod;
• under an action of the electromagnetic shaft, the support rod maintains a vertical state, and the impact bar is locked by the inclined plane of the support rod coming into contact with the inclined plane of the wedge block.