The invention relates to an elevator alarming device, and belongs to the technical field of elevator safety and application. A shell is fixed on an elevator wallboard to form a cavity, a connecting seat is fixed on the side wall of the top end of the cavity, metal base plates with convex parts and concave parts arranged alternately are riveted to the connecting seat, piezoelectric wafers are bonded to the convex parts of the base plates, and the concave parts of the two base plates are riveted; the riveted base plates and the bonded piezoelectric wafers form a transducer together, a hanging piece is riveted to the lower ends of the base plates, and a mass block is hung on the hanging piece through a spring; a manual operation hole is formed in the lower end of the side wall of the shell, a circuit board mounting hole is formed in the upper end of the side wall of the shell, and a sliding cover is mounted at the operation hole; a protection shell and a circuit board are mounted at the circuit board mounting hole, an accumulator is welded to the circuit board, the circuit board and the accumulator are located in the protection shell, a button is mounted on the protection shell, and one end of the button is connected to the circuit board in a pressed mode. The elevator alarming device has the advantages that external power supply through a cable or a battery is not needed, real-time power supply can be achieved, the transducer always bears pressure stress, stress distribution is even, and therefore mechanical reliability is high, and power generation capacity is high.
Elevator alarming device
2015-04-22
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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