CN215495331U - Infrared double-detection-induction smoke detector - Google Patents
Infrared double-detection-induction smoke detector Download PDFInfo
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- CN215495331U CN215495331U CN202121251068.9U CN202121251068U CN215495331U CN 215495331 U CN215495331 U CN 215495331U CN 202121251068 U CN202121251068 U CN 202121251068U CN 215495331 U CN215495331 U CN 215495331U
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Abstract
The utility model aims to provide an infrared double-detection induction smoke detector, which is characterized in that: the same secondary detector 2 is arranged beside the main detector 1, the main detector 1 and the secondary detector 2 are respectively connected with an analyzer 3, and the analyzer 3 is connected with an alarm 4. The utility model adopts the structure of double detection devices, realizes the signal distinction between the self fault of the smoke detector and the fire alarm, so as to respectively carry out the actual operation of fault elimination and fire alarm, not only can find the false alarm of non-fire in time to realize the timely elimination of the fault, but also can ensure the normal fire alarm function.
Description
The technical field is as follows:
the utility model relates to an infrared double-detection-induction smoke detector.
Background art:
the existing infrared smoke detector loses the normal alarm function once the detection device is damaged or dust is accumulated due to long-term placement. The smoke detector with the infrared double detection induction solves the problem.
The utility model content is as follows:
the utility model aims to ensure the reliability of fire fighting detection by providing a double detection device. A smoke detector of two detection response of infrared ray which characterized in that: the same secondary detector 2 is arranged beside the main detector 1, the main detector 1 and the secondary detector 2 are respectively connected with an analyzer 3, and the analyzer 3 is connected with an alarm 4. When one of the main detector 1 and the secondary detector 2 fails and the other one works normally, the fire alarm function can still be normally performed, but at the moment, the alarm signal sent by the failed detector can be changed into a guide signal for maintaining the detector. Only if all detectors send out alarm signals, the alarm can generate fire alarm signals. The analyzer 3 is a device for judging input signals of the main detector 1 and the sub detector 2, and when a single signal of the main detector 1 or the sub detector 2 is input, it is judged as a non-fire fault signal. When both signals of the main detector 1 and the sub detector 2 are input, a fire alarm signal is sent to the alarm 4.
The utility model adopts the structure of double detection devices, realizes the signal distinction between the self fault of the smoke detector and the fire alarm, so as to respectively carry out the actual operation of fault elimination and fire alarm, not only can find the false alarm of non-fire in time to realize the timely elimination of the fault, but also can ensure the normal fire alarm function.
Description of the drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a circuit diagram for implementing one function of the analyzer 3.
The specific implementation mode is as follows:
example 1:
referring to fig. 1 and 2, the same secondary detector 2 is arranged beside a main detector 1, the main detector 1 and the secondary detector 2 are respectively connected with an analyzer 3, and the analyzer 3 is connected with an alarm 4. The primary detector 1 and the secondary detector 2 are infrared emitting and receiving devices, which are commercially available. Fig. 2 is a circuit diagram of one functional implementation of the analyzer 3. When only the main detector 1 outputs an electric signal, the normally open contact 5 of the relay of the main detector 1 is switched on, the relay 8 is switched on, the normally open contact 10 of the relay 8 is switched on, and at the moment, because the loop of the relay 14 is not switched on, the normally closed contact 15 of the relay 14 is in a closed state, the yellow light 5 is turned on. Similarly, when the main detector 1 outputs no electric signal, the secondary detector 2 outputs an electric signal to switch on the normally open contact 6 of the relay of the secondary detector 2, so that the relay 9 is attracted, the normally open contact 11 of the relay 9 is closed, and the yellow lamp 5 is turned on. The yellow light 5 is on to indicate a fault signal. When the main detector 1 and the secondary detector 2 output electric signals simultaneously, the normally open contact 12 of the relay 8 and the normally open contact 13 of the relay 9 are both closed, so that the relay 14 is attracted, the normally open contact 16 of the relay 14 is closed, and the red light 17 is lightened. The red light 17 is illuminated to indicate a fire alarm signal. When the relay 14 is attracted, the normally closed contact 15 of the relay 14 is opened, so that the yellow lamp 5 loop is disconnected, and the yellow lamp 5 cannot be lighted. And 7, supplying power to the relay. The alarm 4 is an alarm device of a fire control center. Normally open contact 18 is the normally open contact of relay 8, and normally open contact 19 is the normally open contact of relay 9, and normally open contact 20 is the normally open contact of relay 14, and normally open contact 18, 19, 20 are used for being connected with alarm 4 return circuit.
Claims (1)
1. A smoke detector of two detection response of infrared ray which characterized in that: the same secondary detector (2) is arranged beside the main detector (1), the main detector (1) and the secondary detector (2) are respectively connected with the analyzer (3), and the analyzer (3) is connected with the alarm (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121251068.9U CN215495331U (en) | 2021-06-03 | 2021-06-03 | Infrared double-detection-induction smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121251068.9U CN215495331U (en) | 2021-06-03 | 2021-06-03 | Infrared double-detection-induction smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215495331U true CN215495331U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121251068.9U Active CN215495331U (en) | 2021-06-03 | 2021-06-03 | Infrared double-detection-induction smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215495331U (en) |
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2021
- 2021-06-03 CN CN202121251068.9U patent/CN215495331U/en active Active
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