Key with function of displaying locking and unlocking state of door
A technology of keys and functions, applied in the field of stationery
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[0014] Below in conjunction with accompanying drawing, the present invention is described in further detail, so that those skilled in the art understand:
[0015] Such as Figure 1-2 As shown, the labels represent:
[0016] Key handle 1, display screen 2, time adjustment button 3, retracting rod 4, key rod 5, bump 6, time storage module 7, controller 8, micro-touch switch 9, spring 10.
[0017] see Figure 1-2 As shown, this embodiment provides a key with the function of showing whether the door is locked, including a key shaft 5 and a key handle 1 fixedly arranged at the end of the key shaft 5 . Different from conventional keys, it has the function of displaying the last lock time, which is realized through the following structure:
[0018] The key handle 1 is provided with a micro-touch switch 9 , a controller 8 and a time storage module 7 , and a display screen 2 is provided on the surface of the key handle 1 . In addition, a retractable rod 4 is telescopically inserted...
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