FIELD: physics, alarm.
SUBSTANCE: invention is related to fire safety equipment, namely to smoke alarms, and may be used for detection of fire at early stage in case of smoke aerosols appearance, and also for detection of dustiness in departments of precision instrument making, especially in microelectronic industry. Technical result is achieved by the fact that in available design of fire alarm comprising bearing base with the possibility to connect to wall or to ceiling and light diode and photo diode fixed on it, construction represents body that consists of base with circuit board and cover with light diode and photo diode with rotary element fixed on it. Body cover consists of two parts: fixed and movable.
EFFECT: increase of performance properties, reduction of weight and dimension characteristics and creation of modern design.
10 cl, 5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| ADDRESSABLE DETECTOR WITH EXTERNAL SMOKE CHAMBER | 2010 |
|
RU2438185C1 |
| DUST DETECTOR FOR GASEOUS MEDIUM | 2006 |
|
RU2324235C1 |
| SMOKE DETECTOR | 2009 |
|
RU2417449C1 |
| SMOKE SUCTION STRUCTURE | 2006 |
|
RU2321072C1 |
| SMOKE SIGNALER | 2006 |
|
RU2317591C1 |
| METHOD AND DEVICE FOR TESTING DETECTOR | 2011 |
|
RU2578740C2 |
| OPTICAL SMOKE-SENSITIVE ALARM | 2003 |
|
RU2267813C2 |
| OPTICAL ELECTRIC FIRE-SMOKE DETECTOR | 2010 |
|
RU2450361C1 |
| SMOKE ALARM | 2003 |
|
RU2258259C2 |
| SMOKE FIRE DETECTOR CASE | 2004 |
|
RU2263970C1 |
