Tight locking -type lock structure of spring

The utility model relates to a tight locking -type lock structure of spring. There is the unstable defect of locking in current lock structure because the structure is unreasonable. The utility modeldiscloses a rigid coupling the installation on the station the bottom plate and rotationally connect the latch hook board on the bottom plate, pressing from both sides between latch hook board and bottom plate and establishing the reset assembly who takes the spring, reset assembly drive latch hook board is switched to the lock -out state swing by unlocked state. Set up on lock structure and orderabout the latch hook board to lock -out state wobbling reset assembly, utilize that the elastic restoring force of spring orders about the swing of latch hook board among the reset assembly, guarantee that the latch hook board all is in the lock -out state at triggering state not, prevent to produce the potential safety hazard because of layer door accidental opening, improvement lock structure'sjob stabilization nature,