Independent smoke alarm function extension module

Abstract

The utility model belongs to the technical field of fire alarm, and provides an independent smoke alarm function extension module, which comprises a smoke alarm, a voice switch, an AC-DC (alternating current-direct current) transformation power supply, a power-off delay disconnection relay, a power-on delay connection relay, a power-on connection delay disconnection relay, an infinite circulation on-off relay and a large-decibel alarm. The AC-DC transformation power supply converts alternating current into direct current to supply power to the smoke alarm, an alarm horn of the smoke alarm is connected with the power-off delay disconnection relay, the power-off delay disconnection relay is connected with the direct current, the power-off delay disconnection relay is connected with the power-on delay connection relay, the power-on delay connection relay is connected with the power-on delay disconnection relay, and the power-on delay connection relay is connected with the power-on delay disconnection relay. The power-on and time-delay disconnection relay is connected with the infinite loop on-off relay, and the output end of the infinite loop on-off relay is connected with a 220V power supply to provide loud sound for the large-decibel alarm to give an alarm; according to the utility model, rapid response can be carried out when smoke occurs, the smoke alarm is adjusted to give an alarm from a normal decibel to a high decibel according to needs until fire scene personnel are reminded, and alarm reminding is efficiently completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of fire alarm, and relates to a fire smoke alarm module, in particular to an independent smoke alarm expansion module for fire extinguishing system. BACKGROUND

[0002] The smoke alarmers on the market have the following defects: 1) low sensitivity; 2) small alarm sound; 3) difficult to turn off when alarming or false alarming; such smoke alarmers are difficult to play their alarm effect when a fire occurs, especially at night when people are sleeping, because most people cannot hear the alarm, and even if they hear the alarm for a period of time, they will miss the best time to extinguish the fire or escape because the smoke is already very thick when they hear the alarm; at the same time, due to the sensitivity and the closing program, it is difficult to turn off once the alarm is started or false alarm occurs, or repeated alarms occur before the smoke is completely dispersed, affecting normal production and life. SUMMARY

[0003] The utility model discloses an independent smoke alarm expansion module, which can remind people at the fire scene or nearby to extinguish the fire or escape in time in the early stage of a fire.

[0004] The utility model discloses the technical scheme adopted by the utility model to realize the above-mentioned purpose is:

[0005] An independent smoke alarm function expansion module, which comprises a voice switch, an AC-DC step-down power supply, a power-off delay disconnecting relay, a power-on delay connecting relay, a power-on connecting delay disconnecting relay, an infinite cycle on-off relay, a large decibel alarm and a smoke alarm, the AC-DC step-down power supply is connected to 220V alternating current through the voice switch, the 220V alternating current is converted into 5V direct current, the smoke alarm is connected to the 5V direct current power supply at the power input end, the smoke alarm horn input end has a voltage signal of 1.5V or above when the smoke alarm alarms, which simultaneously supplies the voltage signal end of the power-off delay relay, the power-off delay disconnecting relay works, the output end is connected to the 5V direct current power supply, and the power supply end of the power-on delay connecting relay is provided with the power supply, the output end of the power-on delay connecting relay is connected to the power supply end of the power-on connecting delay disconnecting relay, the output end of the power-on connecting delay disconnecting relay is connected to the power supply end of the infinite cycle on-off relay, and the output end of the infinite cycle on-off relay intermittently connects the firewire of the 220V power supply, so that the 220V large decibel alarm obtains intermittent 220V power supply and emits intermittent alarm sound of 120 decibels or above.

[0006] Further, the smoke alarm adopts a high-sensitivity independent smoke alarm.

[0007] Further, the 220V 120 decibel alarm is adopted.

[0008] Further, the power supply end of the power-off delay disconnecting relay is connected with a red power supply indicating lamp.

[0009] Further, the output end of the power-off delay disconnecting relay is connected with a purple smoke alarm 80 decibel indicating lamp.

[0010] Further, the power supply end of the infinite cycle on-off relay is connected with a blue large decibel alarm indicating lamp.

[0011] The utility model discloses the beneficial effect is:

[0012] The high-sensitivity smoke alarm can quickly respond from the start of fire and remind the fire site personnel in a short time.

[0013] The smoke alarm normally alarms at 80 decibels, and the sound can be increased to 120 decibels for continuous alarm after a delay period.

[0014] When the smoke alarm falsely alarms without fire, the alarm can be quickly turned off through the voice switch.

[0015] The AC-DC power supply is adopted to avoid the influence of the alarm during fire due to the untimely replacement of the battery. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a circuit structure schematic diagram;

[0017] In the figure, 1 is a power-off delay disconnecting relay; 11 is a power-off delay disconnecting relay voltage signal end; 12 is a power-off delay disconnecting relay power supply end; 13 is a power-off delay disconnecting relay output end; 14 is a red power supply indicating lamp; 2 is a power-on delay on-off relay; 21 is a power-on delay on-off relay power supply end; 22 is a power-on delay on-off relay output end; 3 is a power-on delay disconnecting relay; 31 is a power-on delay disconnecting relay power supply end; 32 is a power-on delay disconnecting relay output end; 4 is an infinite cycle on-off relay; 41 is an infinite cycle on-off relay power supply end; 42 is an infinite cycle on-off relay output end; 43 is a large decibel alarm indicating lamp; 5 is a high-sensitivity independent smoke alarm; 51 is a high-sensitivity independent smoke alarm power supply input end; 52 is a high-sensitivity independent smoke alarm alarm horn input end; 53 is a purple smoke alarm 80 decibel indicating lamp; 6 is an AC-DC step-down power supply; 7 is a voice switch; 8 is a 220V large decibel alarm. DETAILED DESCRIPTION

[0018] The utility model will be further described in connection with the drawings:

[0019] A kind of independent smoke alarm function extension module, circuit structure as shown in Figure 1 The power input end 51 of high-sensitivity independent smoke alarm 5 is connected with 5V DC power supply, the input end 52 of high-sensitivity independent smoke alarm alarm loudspeaker is connected with the voltage signal end 11 of power-off delay disconnecting relay 1, the power end 12 of power-off delay disconnecting relay 1 is connected with 5V DC power supply, the output end 13 of power-off delay disconnecting relay 1 is connected with the power end 21 of power-on delay connecting relay 2, the output end 22 of power-on delay connecting relay 2 is connected with the power end 31 of power-on connecting delay disconnecting relay 3, the output end 32 of power-on connecting delay disconnecting relay 3 is connected with the power end 41 of infinite cycle on-off relay 4, the output end 42 of infinite cycle on-off relay 4 is connected with 220V power supply, and the firewire of 220V 120 decibel alarm 8 is connected.

[0020] High-sensitivity independent smoke alarm 5 adopts the high-sensitivity independent smoke alarm produced by professional production, and the alarm is sounded when the smoke that can be seen by naked eye appears in the field, and the alarm sound is about 80 decibels.

[0021] Large decibel alarm 8 adopts 220V 120 decibel alarm.

[0022] The power end 12 of power-off delay disconnecting relay 1 is connected with red power indicator lamp 14.

[0023] The output end 13 of power-off delay disconnecting relay 1 is connected with purple 80 decibel smoke alarm indicator lamp 53.

[0024] The power end 41 of infinite cycle on-off relay 4 is connected with blue large decibel alarm indicator lamp 43.

[0025] When the power end 12 of power-off delay disconnecting relay 1 is connected with 5V power supply, the relay does not work, when the input voltage of voltage signal end 11 of power-off delay disconnecting relay 1 is greater than 1.5V, the output end 13 of power-off delay disconnecting relay 1 is connected with two points, voltage signal is interrupted, and the output end 13 of power-off delay disconnecting relay 1 is disconnected with two points for a time, which can be adjusted according to needs.

[0026] Power-on delay connecting relay 2, when its power end 21 is connected with 5V power supply, the output end 22 is connected with a time, which can be adjusted according to needs.

[0027] When the output end 32 of the power-on connection delay-off relay 3 is connected, the power supply end 31 is connected to the 5V power supply, and the two points of the output end 32 are connected for a delay-off time, which can be adjusted as needed.

[0028] The output end 42 of the infinite cycle on-off relay 4 is infinitely cycled on-off, that is, when the power supply end 41 of the infinite cycle on-off relay 4 is connected to the 5V power supply, the output end 42 is infinitely cycled on-off, and the output end 42 stops working after the power supply end 41 is disconnected.

[0029] Working principle:

[0030] Under normal circumstances, 220V power is inserted, the red power indicator light 14 is on, and the high-sensitivity independent smoke alarm 5 power input end 51 is connected to the 5V power supply; when smoke occurs on site, the high-sensitivity independent smoke alarm 5 alarms, the high-sensitivity independent smoke alarm alarm speaker input end 52 generates a voltage signal, the voltage signal is connected to the voltage signal end 11 of the power-off delay-off relay 1, the output end 13 of the power-off delay-off relay 1 is connected, the purple smoke alarm indicator light 53 is on, and the 5V power supply is sent to the power supply end 21 of the power-on delay-on relay 2. Because the voltage signal of the horn input end 52 of the smoke alarm 5 is intermittent, the power-off delay-off relay 1 needs to be delayed after the voltage signal is disconnected, the output end 13 of the power-off delay-off relay 1 is delayed off, and when the horn input end 52 of the smoke alarm 5 outputs the voltage signal again, it continues to work, so the voltage signal is intermittently connected, the power-off delay-off relay 1 is still working, and the output end 13 of the power-off delay-off relay 1 is connected. When there is no alarm when the smoke disappears, the intermittent time exceeds the delay time and stops working.

[0031] After the power supply end 21 of the power-on delay-on relay is powered on, it is delayed for 30 seconds, and this delay time can be adjusted. The output end 22 of the power-on delay-on relay is connected to send the 5V power supply to the power supply end 31 of the power-on connection delay-off relay, and the power-on connection delay-off relay 3 works to connect the output end 32 of the power-on connection delay-off relay for 15 minutes. This delay time can also be adjusted. This function is to prevent the loud alarm from disturbing the neighbors when there is no one at home and the alarm or false alarm is always loud. This 15 minutes is enough to remind the neighbors.

[0032] The power-on connection delay-off relay 3 works to send the 5V power supply to the power supply end 41 of the infinite cycle on-off relay, and the infinite cycle on-off relay 4 works to make the output end 42 of the infinite cycle on-off relay infinitely cycle on-off 220V live wire, and further make the 220V 120 decibel alarm 8 loud and intermittent alarm, and the large decibel alarm indicator light 43 is on, achieving the purpose of timely reminding the on-site personnel.

[0033] When the module of the utility model is applied to the actual fire warning site, namely when smoke occurs, the high-sensitivity independent smoke alarm 5 alarms intermittently at 80 decibels, and when the on-site personnel hear the alarm and extinguish the fire, the alarm sound is turned off by the power supply of the smoke alarm 5 during the process of taking the fire extinguishing gun; if the on-site personnel do not hear the alarm, the alarm sound is increased to 120 decibels or above by the loud decibel alarm 8 after the time length of the delay setting, and the alarm is intermittent until the on-site personnel hear the alarm and extinguish the fire or the alarm is turned off through the voice switch 7; when there is no one on the site or the alarm is caused by other special reasons, the longest alarm time can be set through the power-on connection and the delay disconnection of the relay 3, and the alarm of the loud decibel alarm 8 is automatically turned off when the longest alarm time ends.

[0034] The utility model can quickly respond from the beginning of smoke generation, adjust the 80-decibel alarm sound alarm time, and then alarm at 120 decibels until the strategy of reminding the fire on-site personnel, so that the alarm reminding is efficiently and quickly completed.

Claims

1. A self-contained smoke alarm function expansion module characterized by: The application relates to a smoke alarm device, which comprises a voice switch, an AC-DC voltage converter, a power-off delay-off relay, a power-on delay-on relay, a power-on delay-on delay-off relay, an infinite cycle on-off relay, a large-dB alarm and a smoke alarm, wherein the AC-DC voltage converter is connected with 220V AC power through the voice switch, the 220V AC power is converted into 5V DC power, the input end of the power supply of the smoke alarm is connected with the 5V DC power, the input end of the alarm horn of the smoke alarm is connected with the voltage signal end of the power-off delay-off relay, the power supply end of the power-off delay-off relay is connected with the 5V DC power, the output end of the power-off delay-off relay is connected with the power supply end of the power-on delay-on relay, the output end of the power-on delay-on relay is connected with the power supply end of the power-on delay-on delay-off relay, the output end of the power-on delay-on delay-off relay is connected with the power supply end of the infinite cycle on-off relay, the output end of the infinite cycle on-off relay is intermittently connected with 220V AC power, the power supply of the large-dB alarm is intermittently connected with the 220V AC power, and the large-dB alarm is intermittently alarmed.

2. A self-contained smoke alarm function expansion module according to claim 1, wherein: The smoke alarm adopts a high-sensitivity independent smoke alarm.

3. A self-contained smoke alarm function expansion module according to claim 1, wherein: The large-dB alarm adopts a 220V 120-dB alarm.

4. A self-contained smoke alarm function expansion module according to claim 1, wherein: The power supply end of the power-off delay-off relay is connected with a red power supply indicating lamp.

5. A self-contained smoke alarm function expansion module according to claim 1, wherein: The output end of the power-off delay-off relay is connected with a purple smoke alarm 80-dB indicating lamp.

6. A self-contained smoke alarm function expansion module according to claim 1, wherein: The power supply end of the infinite cycle on-off relay is connected with a blue large-dB alarm indicating lamp.

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