TWI469095B - Firefighting indicating device and firefighting system - Google Patents

Description

Fire indicating device and fire fighting system

The present invention relates to fire safety technology, and more particularly to a fire indicating device and a fire fighting system having the fire indicating device.

Large modern buildings generally require fire exits and fire indicating devices to help people evacuate and escape from the scene when a fire breaks out. The existing fire indicating device is an illuminated sign that can illuminate when a fire occurs, directing people to leave the site through the fire exit. However, when a fire occurs, the smoke is often filled, the exposure of the illuminated sign in the smoke is poor, and the fire indicating device is poorly instructive.

In view of the above, it is necessary to provide an instructive fire indicating device and a fire fighting system having the fire indicating device.

A fire indicating device includes an illuminated sign and a smoke evacuation system. The fire sign is used to illuminate the direction of the scene when the fire occurs. The smoke evacuation system is used to vent smoke around the illuminated sign when a fire occurs.

A fire protection system includes a fire protection device and a fire indicating device. The fire-fighting sensing device is used to sense the smoke concentration at the site to determine whether a fire has occurred at the site. The fire indicating device includes an illuminated sign and a smoke evacuation system. The fire sign is used to illuminate the direction of the scene when the fire occurs. The smoke is discharged The system is used to vent the smoke around the illuminated sign when a fire occurs.

The fire indicating device and the fire fighting system use the smoke exhausting system to discharge the smoke around the illuminated sign when the fire occurs, to better expose the illuminated sign, and improve the indication of the fire indicating device.

10‧‧‧Fire system

20‧‧‧Fire sensing device

22‧‧‧Smoke sensor

24‧‧‧Sensor processor

26‧‧‧Wireless transmitter

30,40‧‧‧Fire indicating device

32‧‧‧Lighting signs

320‧‧‧ brand shell

322‧‧‧LED

324‧‧‧LED drive circuit

326‧‧‧ indication surface

328‧‧‧ side

34,42‧‧‧Smoke exhaust system

340‧‧‧ gas cylinders

342‧‧‧Nozzle

344‧‧‧Nozzle starter

36‧‧‧Wireless Receiver

38‧‧‧Indicating processor

420‧‧‧fan

422‧‧‧ vents

424‧‧‧Fan drive unit

1 is a schematic diagram of functional modules of a fire protection system according to a preferred embodiment of the present invention.

2 is a perspective view of the fire indicating device of the fire protection system shown in FIG. 1.

3 is a perspective view of a fire indicating device according to another preferred embodiment of the present invention.

Referring to FIG. 1 and FIG. 2 together, the fire protection system 10 of the preferred embodiment of the present invention includes a fire sensing device 20 and a fire indicating device 30. The fire sensing device 20 is used to sense the smoke concentration at the site to determine whether a fire has occurred at the site. The fire indicating device 30 includes an illuminated sign 32 and a smoke evacuation system 34. The illuminated sign 32 is used to illuminate the direction of the escape from the scene (fire exit) when the fire occurs. The smoke evacuation system 34 is used to develop smoke around the light sign 32 when a fire occurs.

The illuminated sign 32 is a Light Emitting Diode (LED) sign, which includes a card-shaped outer casing 320, a plurality of LEDs 322, and an LED driving circuit 324. The card housing 320 includes an indicator surface 326. The plurality of LEDs 322 are disposed on the indicator surface 326 and are arranged in directional indicators, such as arrows, to indicate the direction of escape from the scene when the LED 322 is illuminated. The LED drive circuit 324 is used to drive the LED 322 to emit light when a fire occurs. In order to prevent the illuminated sign from being obscured by the thick smoke, depending on the rising characteristics of the smoke, the illuminated sign 32 should be installed at a low point on the site, such as a wall root.

The smoke evacuation system 34 includes a gas cylinder 340, a plurality of nozzles 342, and a nozzle activation device 344. The gas cylinder 340 stores gas and communicates with the plurality of nozzles 342. The plurality of nozzles 342 are distributed at the edges of the indicator surface 326 with their ejection direction facing outward (from inside the card housing 320). The nozzle activating device 344 is configured to activate the nozzle 342 when a fire occurs to drain the smoke around the light sign 32, to better expose the illuminated sign 32, and to improve the indication of the fire indicating device 30.

Specifically, the fire sensing device 20 includes a smoke sensor 22, a sensing processor 24, and a wireless transmitter 26. The smoke sensor 22 can sense the smoke concentration at the site. Depending on the rising nature of the smoke, the smoke sensor 22 can be mounted to a high place on the site, such as a ceiling. The sensing processor 24 can determine whether a fire has occurred at the site based on the smoke concentration sensed by the smoke sensor 22. For example, when the smoke sensor sensed smoke concentration exceeds 10%, the sensing processor 24 determines that a fire has occurred on site. The wireless transmitter 26 can transmit a fire signal when the sensing processor 24 determines that a fire has occurred.

The fire indicating device 30 further includes a wireless receiver 36 and an indicating processor 38. The wireless receiver 36 is configured to receive a fire signal from the wireless transmitter 26. The indication processor 38 activates the LED drive circuit 324 and the nozzle activation device 344 upon receipt of the fire signal to drive the LED 322 to illuminate and activate the nozzle 342.

It can be understood that the outer casing of the illuminated sign 32 is not limited to the card shape of the present embodiment, and may be other shapes such as a cylindrical shape.

It can be understood that the illuminated sign 32 is not limited to the LED sign of the present embodiment, and other types of illuminated signs, such as fluorescent signs, may be used.

It will be appreciated that the smoke evacuation system 34 is also not limited to this embodiment. Referring to FIG. 3 , the smoke evacuation system 42 of the fire indicating device 40 of another embodiment includes a fan 420 , a plurality of air outlets 422 , and a fan driving device 424 . The fan 420 is disposed outside the card Inside the shell 320. The card housing 320 also includes four sides 328 that are coupled to the indicator surface 326. The plurality of tuyeres 422 are distributed at the edges of the indicator surface 326 and the four sides 328 are adjacent the edges of the indicator surface 326, and the exit direction is outward (from the inside of the card-shaped outer casing 320). Fan drive 424 is used to activate fan 420 when a fire occurs. Thus, the airflow formed by the fan 420 is dissipated around the illuminated sign 32 through the tuyere 422, and the concentrated smoke around the light sign 32 is developed to better expose the illuminated sign 32 to enhance the indication of the fire indicating device 40.

It can be understood that the nozzle 342 and the tuyere 422 are not limited to the distribution manner of the above embodiment, and other distribution manners for facilitating the distribution of the smoke around the light indication plate 32, such as the joint portion along the indication surface 326 and the four side surfaces 328 (ie, The edges of the card-shaped outer casing 320 are distributed. In addition, the nozzle 342 can also be disposed separately from the card-shaped outer casing 320, such as a ring around the wall around the card-shaped outer casing 320.

It can be understood that the communication between the fire-fighting sensing device 20 and the fire-fighting indicating device 30 or 40 is not limited to being implemented by the wireless transmitter 26 and the wireless receiver 36 of the present embodiment, and the communication of the fire signal can be realized by other means, such as Connected.

In summary, the present invention has indeed met the requirements of the invention patent, and has filed a patent application according to law. However, the above is only a preferred embodiment of the present invention, and it is not possible to limit the scope of the patent application in this case. Equivalent modifications or variations made by persons skilled in the art in light of the spirit of the invention are intended to be included within the scope of the following claims.

10‧‧‧Fire system

20‧‧‧Fire sensing device

22‧‧‧Smoke sensor

24‧‧‧Sensor processor

26‧‧‧Wireless transmitter

30‧‧‧Fire indicating device

32‧‧‧Lighting signs

322‧‧‧LED

324‧‧‧LED drive circuit

34‧‧‧Smoke exhaust system

342‧‧‧Nozzle

344‧‧‧Nozzle starter

36‧‧‧Wireless Receiver

38‧‧‧Indicating processor

Claims (7)

A fire indicating device includes an illuminated sign for emitting a direction indicating escape from a scene when a fire occurs, wherein the fire indicating device further comprises a smoke exhausting system, the smoke exhausting system For arranging the smoke around the illuminating sign when the fire occurs, the illuminating sign includes a casing, a plurality of illuminating diodes and a driving circuit, the casing comprising an indicating surface and at least one side connected to the indicating surface The plurality of light-emitting diodes are arranged on the indicating surface as a direction indicating mark, and the driving circuit is configured to drive the plurality of light-emitting diodes to emit light when a fire occurs, the smoke discharging system comprising a gas cylinder, a plurality of nozzles and a nozzle Activating device, the gas cylinder is stored with gas and is in communication with the plurality of nozzles, the plurality of nozzles are distributed at an edge of the indicating surface, and the spraying direction of the plurality of nozzles is outward, the nozzle starting device is configured to start the plural when a fire occurs nozzle. The fire indicating device according to claim 1, wherein the light indicating sign is a light emitting diode sign or a fluorescent light sign. The fire indicating device according to claim 1, wherein the outer casing is in the shape of a card or a cylinder. The fire indicating device according to claim 1, wherein the smoke discharging system comprises a fan, a plurality of air outlets and a fan driving device, wherein the fan is disposed in the outer casing, and the plurality of air outlets are distributed on the indicating surface The fan drive device is configured to activate the fan when a fire occurs, the edge and the at least one side being adjacent to the edge of the indicator surface, the exit direction of the plurality of tuyères being outward. The fire indicating device according to claim 1, wherein the smoke discharging system comprises a fan, a plurality of air outlets and a fan driving device, wherein the fan is disposed in the light indicating sign, and the plurality of air outlets are opened in the light emitting On the sign, the fan drive is used in the event of a fire The fan is activated to dissipate airflow around the illuminated sign through the plurality of air vents to vent the smoke around the illuminated sign. A fire protection system comprising: a fire sensing device for sensing a smoke concentration at a site to determine whether a fire has occurred at the site; and a fire indicating device comprising an illuminated sign for use in the event of a fire Instructing to escape from the scene, wherein the fire indicating device further includes a smoke exhausting system for arranging smoke around the illuminated sign when the fire occurs, the illuminated sign comprising a casing, a plurality a light emitting diode and a driving circuit, the outer casing includes an indicating surface and at least one side connected to the indicating surface, the plurality of light emitting diodes are arranged on the indicating surface as a direction indicating sign, and the driving circuit is used in the fire Driving the plurality of light emitting diodes to generate light, the smoke exhausting system comprising a gas cylinder, a plurality of nozzles and a nozzle starting device, wherein the gas cylinder stores a gas and communicates with the plurality of nozzles, wherein the plurality of nozzles are distributed on the indicating surface At the edge, the plurality of nozzles are directed outwardly, and the nozzle activating means is adapted to activate the plurality of nozzles in the event of a fire. The fire protection system of claim 6, wherein the fire sensing device comprises a smoke sensor, a sensing processor and a wireless transmitter, wherein the smoke sensor is used to sense the smoke concentration at the site. The sensing processor is configured to determine whether a fire occurs at the site according to the smoke concentration sensed by the smoke sensor, and the wireless transmitter is configured to fire a fire signal when the sensing processor determines that a fire occurs, and the fire indicating device further The invention includes a wireless receiver and an indication processor, the wireless receiver is configured to receive a fire signal sent by the wireless transmitter, and the indicator processor starts the fire indicating device when receiving the fire signal.