CN201130412Y - Multifunctional alarm - Google Patents

Abstract

The utility model relates to a multifunctional annunciator with an improved structure, which is provided with the functions of fire alarm and water leakage prevention alarm. The multifunctional annunciator comprises a water level switch, a photoresistor, a thermistor, a relay K1, a lamp bulb L1, a buzzer and a power supply; wherein, the level switch, the photoresistor and the thermistor are connected in parallel, and are then connected in series with the power supply and the coil of the relay K1; a contact of the relay K1 is connected with the power supply, the buzzer and the lamp bulb L1 in series.

Description

A kind of multifunction alarm device

Technical field:

The utility model relates to the improvement of alarm structure.

Background technology:

In daily life, current lose, fire happens occasionally, and existing detectors is all more single, or only having fire suffers from warning function, or only having the current of preventing loses warning function, can not satisfy people's needs.

The utility model content:

The utility model is exactly at the problems referred to above, and a kind of fire trouble warning function that both had is provided, and has again to prevent that current from losing the multifunction alarm device of warning function.

For achieving the above object, the utility model adopts following technical scheme, it is characterized in that, the utility model comprises water level switch, photoresistance, thermistor, relay K 1, bulb L1, hummer and power supply, after water level switch, photoresistance, the thermistor parallel connection, be connected in series with the coil of power supply, relay K 1, the same power supply in the contact of relay K 1, hummer and bulb L1 are connected in series.

The beneficial effects of the utility model:

Because the utility model comprises water level switch, photoresistance, thermistor, relay K 1, bulb L1, hummer and power supply, after water level switch, photoresistance, the thermistor parallel connection, be connected in series with the coil of power supply, relay K 1, the same power supply in the contact of relay K 1, hummer and bulb L1 are connected in series; Just make the utility model both have fire and suffer from warning function, have the current of preventing again and lose warning function.

Description of drawings:

Fig. 1 is circuit theory diagrams of the present utility model.

Embodiment:

The utility model comprises water level switch, photoresistance, thermistor, relay K 1, bulb L1, hummer and power supply, after water level switch, photoresistance, the thermistor parallel connection, be connected in series with the coil of power supply, relay K 1, the same power supply in the contact of relay K 1, hummer and bulb L1 are connected in series.

Water level switch is the product that can purchase on the market.

During use, water level switch of the present utility model can be installed in the preset water level place in reserve tank or bathing pond etc., when water level surpasses preset water level, the water level switch closure, circuit is connected, and relay K 1 gets electric, work, the closing of contact of relay K 1; At this moment, bulb L1 lights, the hummer sounding alarm, and reminds people has current to lose; When breaking out of fire, temperature in the room or brightness surpass default index, and circuit is connected, and relay K 1 gets electric, work, the closing of contact of relay K 1; At this moment, bulb L1 lights, the hummer sounding alarm, and reminds people has fire to suffer from generation.

Claims (1)

1, a kind of multifunction alarm device, it is characterized in that, comprise water level switch, photoresistance, thermistor, relay K 1, bulb L1, hummer and power supply, after water level switch, photoresistance, the thermistor parallel connection, be connected in series with the coil of power supply, relay K 1, the same power supply in the contact of relay K 1, hummer and bulb L1 are connected in series.

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