CN2277545Y

CN2277545Y - Dual-purpose fire alarm

Info

Publication number: CN2277545Y
Application number: CN 96224371
Authority: CN
Inventors: 莫明智
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-12-28
Filing date: 1996-12-28
Publication date: 1998-04-01
Anticipated expiration: 2006-12-28

Abstract

The utility model provides a dual-purpose fire alarm, which is composed of a liquid mercury thermometer, an acoustic-optic generator, and power supply. A conductive wire is led into the thermometer from the positive electrode of power, a conductive wire, which is connected in series with an alarm ring and an alarm lamp, is also led into the thermometer from the negative electrode of power, and two metal wire heads are used as a circuit switch. When the surrounding temperature of the thermometer raises, the circuit is switched on when the liquid mercury level raises to the alarming temperature, and the acoustic-optic generator sends out alarm. The utility model has the advantages of simple structure and automatic alarm. The dual-purpose fire alarm can be used as a thermometer in normal times only by hanging on a wall, and can prevent and reduce fire damage to society, human bodies and properties.

Description

Dual-purpose fire-alarm

The utility model relates to a kind of warning device, especially a kind of dual-purpose fire-alarm.

Fire, as a kind of artificial or disaster, all can take place every year, when in a single day people find the fire symptom of a trend, the capital actively takes measures to put out, yet often many times, when especially night, people had a rest, can't in time find the condition of a fire, treat that big fire is stretched just to have caused the heavy losses of personnel and property.Though fire distinguisher is many at present, fire-alarm is not seen appearance.

The purpose of this utility model provides a kind of simple in structure, and is practical, can work as thermometer usefulness, can in time send the dual-purpose fire-alarm that sound and optic signal is reported to the police when finding fire again.

The utility model is by the liquid mercury thermometer, and sound, optical generator and power supply are formed.

Elaborate below in conjunction with accompanying drawing.

Fig. 1 is the utility model structure principle chart.

Structure of the present utility model is: draw a plain conductor to the interior design temperature place of liquid mercury thermometer (1) from power supply (5) positive pole, also drawing lead series connection acoustic generator from power cathode is that alarm bell (4), optical generator are warning lamp (3), also reach the design temperature place in the thermometer, this temperature by the people be selected in 50-80 ℃ all can, and connect the metal shred as contactor (2) at two wire heads.When fire took place, the liquid metal mercury column face of thermometer raise with the rising of environment temperature because liquid metal mercury also can conduct electricity, so when reaching alarm temperature automatic processing circuit, acoustic luminous warning.

This alarm is simple in structure, practical, no matter dwelling house, office building, factory, hotel or each public place, only need to hang to get final product on the wall, at ordinary times when thermometer usefulness, breaking out of fire will be reported to the police automatically, is very easy to promote the use of, and can avoid and reduce the infringement that fire causes society, the person, property greatly.

Claims

1, a kind of dual-purpose fire-alarm, by the liquid mercury thermometer, sound, optical generator and power supply are formed, it is characterized in that: draw a lead to the interior design temperature place of liquid mercury thermometer (1) from power supply (5) positive pole, draw lead series connection alarm bell (4), warning lamp (3) from power cathode, also reach the design temperature place in the thermometer, and connect the metal shred at two wire heads and make contactor (2).