CN2181046Y - Fire pre-alarm device - Google Patents

Abstract

The utility model relates to a fire pre-alarm device, comprising a box body 10 provided with a smoke sensing hole 101 which can convect. The inner part of the box body 10 comprises a control board 15, a transformer 11, a rectifier 12, dry batteries 13, and an AC/DC power supply transfer relay 14. A heat sensor 151, a smoke sensor 152, a relay 153, a transmitter 154, an alarm lamp 155, a buzzer 156, and a receiver 157 are arranged on the control board 15. The relay 153 responding the detecting signal of the sensor controls the power supply of the alarm lamp, the buzzer, and the transmitter 154. The fire pre-alarm device is suitable for any environment, and needs not any electric connection between each pre-alarm device. The utility model has the advantages of good expanding property and high reliability, even if the AC power has the problem, the normal work can be carried out.

Description

Fire pre-alarm device

The utility model relates to protective device, more specifically to a kind of fire alarm device.

Though existing fire detection device in the existing fire fighting equipment, but only limit to two kinds of thermal sensor and smoke transducers, and wherein smoke transducer is provided with very sensitively usually, and must be contained in the effective sensing of height more than the 5-7 meter in actual time, applicable situation that use on the historical facts or anecdotes border and scope are subjected to greatly restriction and can't popularize, this be because the height of general dwelling house or public place etc. mostly between the 3-4 meter, directly above-mentioned smoke transducer being installed in this lower position then can be because of being subjected to smoke to influence to cause misoperation.Though aforesaid thermal sensor can be installed in is unsuitable for installing on the position of smoke detector, but we know, on fire always from being fuming, when thermal sensor detected uniform temperature and produces actuation of an alarm, this intensity of a fire had often drawn out the degree that is difficult to put out rapidly.In addition, the fire detection amount device of prior art all connects with electric wire, and is neither attractive in appearance, and also inconvenience is installed, and very easily burnt when the condition of a fire takes place or be damaged spending the time of tide, form short circuit or open circuit after just can cause the malfunctioning or false alarm of reporting to the police.

The purpose of this utility model is to provide a kind of fire alarm device that overcomes prior art fire alarm installation shortcoming, when this fire alarm device detects above the smog of setting and temperature, can start transmitting set, warning lamp and hummer at once by the action of relay, then except this hummer, warning lamp can provide sound, light early warning immediately, also can be by the radio receiver of this transmitting set emitting radio wave in another and the prior-warning device, this receiver can start warning lamp and hummer again immediately, the similar many places precaution device that is communicated with.

The purpose of this utility model also is to provide a kind of fire alarm device, and this fire alarm device can be set the sensitivity of smog sensing according to the difference of installation site, condition, makes it applicable to any occasion.

The purpose of this utility model also is to provide a kind of fire alarm device, and this fire alarm utensil has the easy structure of installation, maintenance.

The purpose of this utility model is to realize like this, constructing a kind of fire alarm device comprises: box body 10, be located on the described box body 10 can be to influenza cigarette hole 101, the inside of described box body 10 comprises: control panel 15, power transformer 11, input end are connected AC/DC power supply transfer relay 14 respectively with the secondary rectifier that is connected 12, dry cell 13, the input end of described transformer 11 with the output terminal of described dry cell 13 and described rectifier 12; Described control panel 15 is provided with thermal sensor 151, smoke sensor 152, relay 153, transmitting set 154, warning lamp 155 and hummer 156, radio receiver 157; Be provided with the sensible heat shell fragment 1511 that bending when being heated makes the contact conducting in the described thermal sensor 151; Described smoke sensor 152 is provided with a luminophor 1521, a photoreceptor 1522 and a light modulator 1523, and wherein this luminophor 1521 and photoreceptor 1522 are located at the two ends in the default convection type sense cigarette hole 101 of box body 10 respectively; Described radio receiver 157 comprises frequency tuner 1571 and pilot relay 1572, and described transmitting set 154 is provided with frequency tuner 1541; The detection signal of described relay 153 described thermal sensors 151 of response and smoke sensor 152 is controlled the power supply to described warning lamp 155, hummer 156 and described transmitting set 154, described radio receiver 157 is received in the control input end of the pilot relay in the described radio receiver, and the control input end of control output end and described relay 153 joins.

The feature of fire alarm device of the present utility model also is, the frequency tuner 1571 in the described radio receiver 157 is tuned to identical frequency with frequency tuner 1541 in the described transmitting set 154.

Because fire alarm device of the present utility model is provided with transmitting set 154 and radio receiver 157, they are respectively equipped with frequency tuner 1541,1571, so can will be installed in the transmitter 154 in each compartment, compartment, aisle or neighbours's the fire alarm device, an identical frequency of tuner frequencies furnishing of receiver 1577, like this, as long as there is a fire alarm device to produce early warning signal, other each fire alarm device almost can produce the early warning signal such as sound, light simultaneously, reaches the effect same that is electrically connected a plurality of precaution devices.And have and be easy to implement, do not take up space and be not subjected to space constraint, both do not had electric wire and connected the not attractive in appearance and vulnerability of bringing, can directly improve effect again.Again because each precaution device is equipped with warning lamp 155 and hummer 156, and they Each performs its own functions, have independence, again owing to be provided with dry cell, the still operate as normal but AC power goes wrong, thereby the reliability and the sensitivity that improve total system.This fire alarm device is applicable under any environment to be installed and used, and need not any electrical connection between each precaution device, and extendibility is good, the reliability height, even but AC power goes wrong also operate as normal

In conjunction with the accompanying drawings, further specify embodiment of the present utility model, in the accompanying drawing:

Fig. 1 is the floor map of outward appearance of the present utility model;

Fig. 2 is an inner principle schematic of the present utility model.

As shown in Figures 1 and 2, fire alarm device of the present utility model comprises: box body 10, but the side face appropriate position of this box body 10 is provided with the sense cigarette hole 101 of convection current, the inside of this box body 10 is provided with: the 110/220V decompression is the transformer 11 of 12V, bridge rectifier 12, the dry cell 13 of 12V, can be with AC, the DC12V relay 14 that the DC electric current is used alternatingly, promptly when AC power supplies process transformation, rectification is directly to import to 2 of relay 14 behind the DC12V, No. 7 contacts, subsequently, this relay 14 just produces action with 1, No. 3 contact conductings make positive electricity directly be passed to console panel 15; And after AC power supplies has a power failure 1, No. 4 contacts of this relay conducting immediately, and the positive electricity of dry cell 13 directly can be passed to console panel 15; Be located at the thermal sensor 151 in the console panel 15, be provided with the sensible heat shell fragment 1511 that bending when being heated makes the contact conducting in this sensor 151, this sensible heat shell fragment 1511 with the distance of corresponding contact be adjustable, therefore can adorn the difference adjustment of place, environment and the temperature sense value is set according to the Yian; Be located at the smoke sensor 152 in the mounting disc 15, this sensor 152 has a luminophor 1521, one photoreceptor 1522 and a light modulator 1523, wherein this luminophor 1521 and photoreceptor 1522 are located at the two ends in the default convection type sense cigarette hole 101 of box body 10 respectively, described light modulator 1523 can directly be regulated the brightness of luminophor 1521, promptly the light beam behind these luminophor 1521 generation optically focused is aimed at the sensitivity speck of photoreceptor all the time, and the light beam that sends when this luminophor 1521 is when being hindered the sensitivity speck that makes photoreceptor 1522 and can't receive by smog, then produce the conducting electric current, can obtain different sensing sensitivities to adapt to different needs when adjusting brightness with 1523 pairs of luminophors of light modulator 1521.Here, light modulator 1523 and existing bulb brightness regulator are roughly the same.Just constitute adjustable smoke sensor jointly by light modulator 1523, luminophor 1521, photoreceptor 1522; Be installed in the relay 153 in the console panel 15, No. 2 contacts of this relay 153 directly import negative electricity, No. 7 contacts are then accepted the positive supply of hot sensing, smoke sensor 151,152, when hot sensing or smoke sensor 151,152 sense when set state takes place, the electric loop that is connect produces electric current and makes relay 153 actions, and directly make positive electricity be conducting to contact No. 6, and then output to transmitting set 154, warning lamp 155 and hummer 156 from No. 8 contacts; Be arranged on the transmitting set 154 in the console panel, this transmitter includes the tuner 1541 of adjustable frequency, when connecting positive supply (negative supply directly imports), and can be directly by an integrated circuit emitting radio wave; Use the warning lamp 155 of DC12V power supply; Use the hummer 156 of DC12V power supply, be located at the radio receiver 157 of console panel 15, be provided with frequency tuner 1571 in this receiver 157, when the radiowave that receives with the same frequency of transmitter, its relay of establishing in addition 1572 promptly produces action, with No. 6 contacts of positive supply conducting of No. 8 contacts, outputs to No. 7 contact places of described relay 153 again, then, this relay 153 is exported to power supply transmitting set 154, warning lamp 155, hummer 156 as previously mentioned.

Claims (2)

1, a kind of fire alarm device, it is characterized in that comprising: box body (10), be located on the described box body (10) can be to influenza cigarette hole (101), the inside of described box body (10) comprises: control panel (15), power transformer (11), input end are connected AC/DC power supply transfer relay (14) respectively with the secondary rectifier that is connected (12), dry cell (13), the input end of described transformer (11) with the output terminal of described dry cell (13) and described rectifier (12); Described control panel (15) is provided with thermal sensor (151), smoke sensor (152), relay (153), transmitting set (154), warning lamp (155) and hummer (156), radio receiver (157); Be provided with the sensible heat shell fragment (1511) that bending when being heated makes the contact conducting in the described thermal sensor (151); Described smoke sensor (152) is provided with a luminophor (1521), a photoreceptor (1522) and a light modulator (1523), and wherein this luminophor (1521) and photoreceptor (1522) are located at the two ends in the default convection type sense cigarette hole (101) of box body (10) respectively; Described radio receiver (157) comprises frequency tuner (1571) and pilot relay (1572), and described transmitting set (154) is provided with frequency tuner (1541); The detection signal that described relay (153) responds described thermal sensor (151) and smoke sensor (152) is controlled the power supply to described warning lamp (155), hummer (156) and described transmitting set (154), described radio receiver (157) is received in the control input end of the pilot relay in the described radio receiver (1572), and the control input end of control output end and described relay (153) joins.

2, fire alarm device as claimed in claim 1, its feature also be, the frequency tuner (1571) in the described radio receiver (157) is tuned to identical frequency with frequency tuner (1541) in the described transmitting set (154).

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