3results about How to "Avoid repeated operations" patented technology

The escape fireproof lock with the emergency unlocking function comprises a lock shell, a dead bolt mechanism and an inclined bolt mechanism are arranged in the lock shell, the inclined bolt mechanism comprises an inclined bolt block, a pushing device connected with the inclined bolt block and a twisting device driving the pushing device to move front and back, the dead bolt mechanism is located above the inclined bolt mechanism, and the dead bolt mechanism is located above the inclined bolt block. Comprising a dead bolt block, a push plate connected with the dead bolt block and a lock cylinder shifting piece driving the push plate to move front and back, a limiting device used for limiting the dead bolt block and an inclined bolt block to retract in a lock body is arranged on the lock cylinder shifting piece, and a linkage mechanism used for controlling the inclined bolt block and the dead bolt block to move at the same time is arranged between the inclined bolt mechanism and the dead bolt mechanism. The utility model has the following advantages: the double tongues are quickly opened in a linkage way inside the door; the latch bolt and the dead bolt are set to be normally open simultaneously, so that the use flexibility is improved; the double lock tongues can be unlocked synchronously and emergently by using a key outside the door, so that the escape safety is improved; safety performance is high and operation is convenient.