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A piezoelectric elevator alarm

A kind of alarm, piezoelectric technology, applied in the direction of generator/motor, piezoelectric effect/electrostrictive or magnetostrictive motor, electrical components, etc., can solve problems such as broken, and achieve strong environmental adaptability and reliability High performance, good power generation effect

Active Publication Date: 2019-05-14
河南巨通机电设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the piezoelectric wafer is a brittle material, it is easily broken due to excessive tensile stress.

Method used

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  • A piezoelectric elevator alarm
  • A piezoelectric elevator alarm
  • A piezoelectric elevator alarm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] An end cover b1 with a through hole is installed on the end of the outer wall a through screws, and an inner concave ring platform b2 is arranged at the through hole of the end cover b1; an inner shell h is installed on the base j1 through screws, and the shell bottom h2 of the inner shell h is There are through holes and side columns h1. The side columns h1 are evenly distributed on the circumference of the shell bottom h2. A group of piezoelectric vibrators g are installed on the side columns h1 through the pressure plate m and screws. The piezoelectric vibrators g are composed of the substrate g1 and the piezoelectric sheet It is formed by bonding g2; the base j1 is provided with a concave circular platform j2, on which a rotating shaft k is installed through the through hole of the shell bottom h2 of the inner shell h, and the rotating shaft k is sequentially installed with a one-way bearing d and a card from right to left Spring l, excitation wheel i, flat key f, ci...

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Abstract

The invention relates to a piezoelectric type elevator alarm device, and belongs to the technical field of elevator products. An end cover is installed on the end portion of the outer wall; the base is provided with an inner shell; a through hole and side columns are arranged on a shell bottom of the inner shell; the side columns are evenly distributed on the circumference of the shell bottom; a set of piezoelectric vibrators are arranged on the side columns; the base is provided with a rotary shaft; the rotary shaft is sequentially provided with a one-way bearing, a snap spring, an excitation wheel, a flat key, another snap spring, another one-way bearing and a rocker from right to left; a sleeve of the rocker is fixed to the rotary shaft; the excitation wheel is provided with evenly-distributed excitation blocks; the outermost end of the excitation blocks is provided with an arc with the axis of the rotary shaft as the center; a circuit board is installed on the shell bottom of the inner shell and provided with an energy conversion circuit and a signal emission system; when the rocker is rotated, the excitation blocks make contact and stir the piezoelectric vibrators to generate power, and the signal emission system on the circuit board emits alarm signals when the power is accumulated enough; and the excitation blocks are disengaged from the piezoelectric vibrators before the deformation amount of the piezoelectric vibrators reaches the allowable value.

Description

technical field [0001] The invention belongs to the technical field of elevator products, and in particular relates to a piezoelectric elevator alarm. Background technique [0002] In recent years, with the advancement of urbanization and the improvement of residents' living standards, elevators have become an indispensable vertical transportation tool in people's production and life. However, with the explosive growth of elevators, the number of elevator accidents remains high. The elevator wireless alarm system can shorten the emergency response time for elevator trapped people accidents, and solve the problem of timely rescue of elevator trapped people. At present, the alarm caller installed in the elevator is not suitable for wiring to power it. Most of its signal transmitters rely on batteries for power supply. Their energy is limited and they need to be replaced frequently, which wastes manpower and material resources and easily causes environmental pollution. And if...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00B66B5/02H02N2/18
CPCB66B5/0006B66B5/02H02N2/18
Inventor 汪彬陈日成阚君武
Owner 河南巨通机电设备有限公司
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