Rapid tri-state bidirectional switching device

A tri-state bidirectional switching device with three switching states of forward, backward and idle connection positions, comprising:

• a shell having opposite sides;
• an electrode housing moveable within said shell for switching between forward, backward and idle positions;
• an electrode arranged in said electrode housing and having opposite ends;
• movable contact points arranged at said opposite ends of said electrode;
• fixed contact points arranged at said opposite sides of said shell and corresponding to said movable contact points, respectively;
• fixed contact terminals connected to said fixed contact points;
• electrode release springs arranged at said opposite sides of said shell, wherein said electrode housing compresses said electrode release springs during movement within said shell;
• a driving solenoid shaft connected to said electrode housing, wherein said driving solenoid shaft is driven by a front driving solenoid and a rear driving solenoid to cause said electrode to move back and forth, such that one of said movable contact points contacts one of said fixed contact points arranged at said opposite sides of said shell;
• and
• a locking mechanism, having a front locking notch and a rear locking notch, and a release lock engaging or disengaging from said front locking notch and said rear locking notch.