The utility model relates to a transformer individual malposed tooth constructs, its technical characterstic is: the passive lock core that has the key hole is opened in the installation in the lock body, inserts the downthehole electron key of this key and realizes unblanking / the closure function for the power supply of passive lock core, dark roof beam installs in the lock body and one end isconnected with passive lock core, and the dark roof beam other end passes two mounting panels, and two mounting panel other ends are installed outside the lock body, have the lock core control panel of clutch, control clutch moving motor and control motor at passive lock core internally mounted. The utility model discloses the passive lock core of installation in the lock body can clearly and definitely write down the opening with closed of tool to lock, realizes that the tool to lock is intelligent, the management function that becomes more meticulous, has broken away from traditional tool tolock to the reliance of mechanical key, solved technological robber open with big key problem of management in batches, carry out management in all -weather 24 hours to the tool to lock, have characteristics such as simple structure, safe and reliable, low cost.