CN114495413A - Fire-fighting smoke detector - Google Patents
Fire-fighting smoke detector Download PDFInfo
- Publication number
- CN114495413A CN114495413A CN202210087447.1A CN202210087447A CN114495413A CN 114495413 A CN114495413 A CN 114495413A CN 202210087447 A CN202210087447 A CN 202210087447A CN 114495413 A CN114495413 A CN 114495413A
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- fixedly connected
- smoke
- shell
- mounting
- smoke detector
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
- G08B17/107—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device for detecting light-scattering due to smoke
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The application relates to the technical field of fire detection, in particular to a fire-fighting smoke detector which comprises a shell, a smoke detection device and a temperature detection device, wherein the smoke detection device and the temperature detection device are fixedly connected inside the shell; the casing includes the mount pad of fixed connection on the ceiling and fixed connection installs the shell on the mount pad. This application has after the conflagration finishes, and the staff can pull down the refraction subassembly from the mounting, and the smog passageway in the clearance refraction subassembly can, and the staff need not disassemble whole device, operates comparatively simple effect.
Description
Technical Field
The invention relates to the technical field of fire detection, in particular to a fire-fighting smoke detector.
Background
A smoke detector is a different name for smoke or smoke alarm, and is generally installed indoors to detect whether a fire occurs indoors. The smoke alarm realizes fire prevention by monitoring the concentration of indoor smoke, is widely applied to various fire alarm systems, and has far better performance than gas-sensitive resistor type fire alarms.
When a fire disaster occurs, smoke generated by the fire disaster gradually diffuses into the smoke detector, and when the smoke detector detects the smoke, the smoke detector starts to give an alarm.
With respect to the related art among the above, the inventors consider that there is a defect: when the fire is over, the smoke detector in the related art may accumulate a large amount of smoke, and the smoke may adhere to the inside of the smoke detector, so that the worker may need to detach the smoke detector to clean the inside of the smoke detector, which is inconvenient to operate.
Disclosure of Invention
In order to make things convenient for the staff to clear up smoke detector after the conflagration, this application provides a fire control smoke detector.
The application provides a detector is felt to fire control cigarette adopts following technical scheme:
a fire-fighting smoke detector comprises a shell and a smoke detection device fixedly connected in the shell; the shell comprises a mounting seat fixedly connected to a ceiling and a mounting shell fixedly connected to the mounting seat;
the smoke detection device is fixedly connected inside the mounting shell and comprises a fixing piece fixedly connected inside the mounting shell, a laser transmitter fixedly connected inside the fixing piece, a refraction component detachably connected on the fixing piece and a laser receiver fixedly connected inside the fixing piece; the side of installation shell has seted up the blow vent, the refraction subassembly sets up between laser emitter and laser receiver, laser receiver and warning circuit establish ties, the laser and the refraction subassembly out of plumb of laser emitter transmission, the refraction subassembly makes laser receiver can not receive laser, the smog passageway has been seted up to the inside of refraction subassembly, the smog passageway communicates with each other with the blow vent.
Through adopting above-mentioned technical scheme, when there is the conflagration to take place indoor, the conflagration can be at indoor formation smog, and after smog that the conflagration produced flows into the inside of mounting through the blow vent, smog can he get into refraction subassembly through the smog passageway, and the scattering takes place when making laser pass through refraction subassembly, and when laser was close to laser receiver through refraction subassembly, enlarge the light beam scope, the laser beam that makes the diffusion can shine on laser receiver, and laser receiver is to warning circuit feedback signal. After the conflagration finishes, the staff can pull down refraction subassembly from the mounting, clear up the smog passageway in the refraction subassembly can, the staff need not disassemble whole device, and the operation is comparatively simple.
Optionally, the bottom of installation shell can be dismantled and be connected with and dismantle the lid, mounting fixed connection is inside the top of installation shell, the bottom butt of mounting is on dismantling the upper surface of lid.
Through adopting above-mentioned technical scheme, after the conflagration ended, the staff only need will dismantle the lid and just can directly disassemble the mounting.
Optionally, a horizontal installation groove is formed in the fixing piece, the refraction component is horizontally installed inside the installation groove, and the refraction component is in interference fit with the installation groove.
Through adopting above-mentioned technical scheme, when dismantling the refraction subassembly, the staff directly take out the refraction subassembly from the mounting groove can, do not set up locking mechanical system in the inside of mounting groove, after the staff will refract the subassembly clean up, with the refraction subassembly inject the mounting groove inside can, easy operation, convenient maintenance and maintenance.
Optionally, the inner wall of the fixing member is coated with a light absorbing coating.
Through adopting above-mentioned technical scheme, after the laser beam shines on the inner wall of mounting, the laser is absorbed by the extinction coating on the mounting inner wall, reduces mounting inner wall reflection laser, reduces the possibility that the laser is reflected on laser receiver by the mounting inner wall.
Optionally, the inside fixedly connected with of installation shell is used for detecting the temperature-detecting device of smog temperature, temperature-detecting device and smog detection device establish ties on alarm circuit.
Through adopting above-mentioned technical scheme, when indoor dust granule is raised, inside the dust granule diffused smog detection device, the dust granule can scatter the laser equally, leads to smog detection device to feed back fire signal to alarm circuit, and temperature-detecting device detects the temperature of dust granule this moment, and when the temperature of dust granule is higher, temperature-detecting device and smog monitoring device are simultaneously to alarm circuit feedback signal, and temperature-detecting device can reduce the possibility that this application device misreport conflagration.
Optionally, the temperature detection device includes a detection component and a connection component for detecting the smoke temperature; detection subassembly and coupling assembling fixed connection are on the installation shell, detection subassembly and coupling assembling communicate with each other, detection subassembly and coupling assembling all are connected with alarm circuit, detection subassembly and coupling assembling constitute a normally open switch.
Through adopting above-mentioned technical scheme, after detecting element detected the temperature rise, coupling assembling and detecting element electric connection, temperature-detecting device made alarm circuit UNICOM, and smoke detection device and temperature monitoring device cooperation make alarm circuit work, have reduced the possibility that this application device misreport conflagration.
Optionally, the detection assembly comprises a storage tube fixedly connected to the installation shell, liquid mercury is contained in the storage tube, a first conductive piece is fixedly connected to the storage tube, one end of the first conductive piece is connected with the mercury, and the other end of the first conductive piece is connected with the alarm circuit.
Through adopting above-mentioned technical scheme, when the smog that the conflagration produced and the memotron when taking place the heat exchange, the temperature of memotron and mercury risees, and after the temperature of mercury risees, the expansion takes place for the volume of mercury, and after the liquid level entering coupling assembling of mercury was inside, mercury will alarm circuit UNICOM.
Optionally, coupling assembling includes connecting pipe and the electrically conductive piece of second of fixed connection at the connecting pipe top of fixed connection on the installation shell, the one end of the electrically conductive piece of second is located the inside of connecting pipe, the other end and the warning circuit of the electrically conductive piece of second are connected, the connecting pipe communicates with each other with the storage tube.
By adopting the technical scheme, when the liquid level of the mercury and the second conductive piece are connected, the first conductive piece and the second conductive piece are connected together by the mercury, so that the first conductive piece and the second conductive piece can conduct electricity, and the alarm circuit is communicated.
Optionally, the top of the connecting pipe is fixedly connected with a mounting seat, a mounting hole is formed in the mounting seat, and the second conductive piece is fixedly connected inside the mounting hole.
Optionally, the inner diameter of the connecting pipe is smaller than the inner diameter of the storage pipe, and the liquid level of the mercury is lower than that of the second conductive member.
Through adopting above-mentioned technical scheme, when the volume expansion of mercury, the liquid level that the connecting pipe can increase mercury rises highly.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when there is the conflagration indoor when taking place, the conflagration can be at indoor formation smog, and after smog that the conflagration produced flows into the inside of mounting through the blow vent, smog can he get into refraction subassembly through the smog passageway, and the scattering takes place when making laser pass through refraction subassembly, and when laser was close to laser receiver through refraction subassembly, enlarged light beam range makes the laser beam of diffusion can shine on laser receiver, and laser receiver is to warning circuit feedback signal. After the fire disaster is over, the worker can detach the refraction component from the fixing component and clean the smoke channel in the refraction component, the worker does not need to detach the whole device, and the operation is simple;
2. when indoor dust particles are lifted, the dust particles are diffused into the smoke detection device, the dust particles can scatter laser light, the smoke detection device feeds a fire signal back to the alarm circuit, the temperature detection device detects the temperature of the dust particles, when the temperature of the dust particles is high, the temperature detection device and the smoke monitoring device feed back signals to the alarm circuit at the same time, and the temperature detection device can reduce the possibility that the device gives a fire by mistake;
3. when smoke generated by fire exchanges heat with the storage tube, the temperature of the storage tube and the mercury rises, the volume of the mercury expands after the temperature of the mercury rises, and the mercury is communicated with the alarm circuit after the liquid level of the mercury enters the interior of the connecting assembly.
Drawings
Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a smoke detection device in the embodiment of the present application.
Fig. 3 is a schematic structural diagram of a temperature detection device in an embodiment of the present application.
Description of reference numerals: 1. a housing; 11. a mounting seat; 12. mounting a shell; 121. a vent; 13. disassembling the cover; 2. a smoke detection device; 21. a fixing member; 211. mounting grooves; 22. a laser transmitter; 23. a refractive component; 231. a smoke channel; 24. a laser receiver; 3. A temperature detection device; 31. a detection component; 311. a storage tube; 312. a first conductive member; 32. a connecting assembly; 321. a connecting pipe; 322. a second conductive member; 323. and (7) mounting a seat.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses detector is felt to fire control cigarette. Referring to fig. 1, a fire smoke detector includes a case 1 fixedly installed on an indoor ceiling, and a smoke detecting device 2 and a temperature detecting device 3 installed inside the case 1 using bolts. The housing 1 includes a mount 32311 mounted on a ceiling using bolts and a mounting case 12 provided on a lower surface of the mount 32311 in an integrated molding process. The smoke detecting means 2 and the temperature detecting means 3 are mounted inside the mounting case 12. The smoke detection device 2 is used for detecting the concentration of indoor smoke, the temperature detection device 3 is used for detecting the temperature of the smoke, and the smoke detection device 2 and the temperature detection device 3 are connected on an alarm circuit in series.
When the smoke detection device 2 detects that the concentration of indoor smoke reaches a set threshold value, the smoke detection device 2 feeds an electric signal back to the alarm circuit; when the temperature detection device 3 detects the temperature of the smoke and the temperature of the smoke is higher than a set threshold value, the temperature detection device 3 feeds back an electric signal to the alarm device, and the alarm circuit works only when the smoke detection device 2 and the temperature detection device 3 both feed back signals to the alarm circuit.
Referring to fig. 1, a plurality of air vents 121 are opened in a side surface of the mounting case 12, and the detachable cover 13 is mounted to the bottom of the mounting case 12 using bolts. The worker can remove the removal cover 13 for installing, repairing, or replacing the smoke detecting device 2 and the temperature detecting device 3 inside the installation case 12. When smoke with high concentration appears in a room, smoke particles can enter the inside of the installation shell 12 through the vent hole 121, the smoke detection device 2 detects the concentration of the smoke at the moment, the temperature detection device 3 detects the temperature of the smoke, and after the concentration and the temperature of the smoke exceed the set threshold values, the alarm circuit controls the alarm system and the fire fighting system to work.
Referring to fig. 2, the smoke detecting device 2 includes a fixing member 21 mounted on the top inner wall of the mounting case 12 using bolts, and a laser transmitter 22, a refraction member 23 and a laser receiver 24 mounted inside the fixing member 21 using bolts. The fixing member 21 is hollow, and a seal cover is attached to one side of the fixing member 21 by using a bolt. The laser transmitter 22 is installed on an inner wall of one side of the fixing member 21, and the laser receiver 24 is installed on an inner wall of the other side of the fixing member 21. A refractive component 23 is mounted between the laser transmitter 22 and the laser receiver 24. The inner wall of the mount 21 is coated with a light absorbing coating. The light absorbing coating is a matt asphalt alkyd paint or an asphalt phenolic paint material. The light absorption coating absorbs the laser irradiated on the inner wall of the fixing member 21, thereby reducing the laser reflected by the inner wall of the fixing member 21 and reducing the interference of the reflected laser with the operation of the laser receiver 24.
The laser emitted by the laser emitter 22 is not perpendicular to the refraction component 23, and the refraction component 23 is made of a transparent glass material. When the laser passes through the refraction assembly 23, the refraction assembly 23 refracts the laser, so that the laser deviates from the original route, and the laser receiver 24 cannot receive the refracted laser. A smoke passage 231 is formed inside the refraction member 23, and the smoke passage 231 is communicated with the air vent 121 of the mounting case 12. Indoor smoke enters the inside of the mounting shell 12 through the vent hole and enters the smoke channel 231, and when laser light passes through the refraction component 23, smoke particles inside the smoke channel 231 scatter the laser light, so that the range of the laser light is enlarged, and the laser receiver 24 can receive the laser light.
Referring to fig. 3, the temperature sensing device 3 includes a sensing member 31 and a connecting member 32 fixed to an inner wall of the mounting case 12. The sensing member 31 includes a storage tube 311 fixed on an inner wall of the mounting case 12 and a first conductive member 312 mounted on a side of the storage tube 311. Liquid mercury is contained in the storage tube 311, the first conductive member 312 penetrates through the side wall of the storage tube 311, one end of the first conductive member 312 is located inside the storage tube 311 and directly contacts with the mercury, and the other end of the first conductive member 312 is connected with the alarm circuit.
The connection assembly 32 includes a connection pipe 321 adhesively fixed on the inner wall of the mounting case 12 and a second conductive member 322 mounted on the top of the connection pipe 321. The connection pipe 321 is vertically disposed, the bottom of the connection pipe 321 is fixed to the top of the storage pipe 311, the connection pipe 321 is communicated with the storage pipe 311, and mercury inside the thick storage pipe can flow into the connection pipe 321. A mounting seat 32311 is screwed to the top of the connecting pipe 321, a mounting hole is formed in the middle of the mounting seat 32311, and the second conductive member 322 is inserted into the mounting hole. The bottom of the second conductive member 322 is located inside the connection pipe 321, and the top of the second conductive member 322 is connected to the alarm circuit.
The detection assembly 31 and the connection assembly 32 form a normally open switch, and the alarm circuit does not work at the moment. When the temperature of the smoke is high, the smoke heats the mercury in the storage tube 311, the volume of the mercury expands after the temperature of the mercury rises, the mercury in the storage tube 311 enters the connecting tube 321, and the alarm circuit is communicated by the detection assembly 31 and the connection assembly 32 after the liquid level of the mercury in the connecting tube 321 contacts the second conductive member 322. At the moment, the smoke detection device 2 and the temperature detection device 3 simultaneously feed back signals to the alarm circuit, and the alarm circuit works and controls the alarm system and the fire fighting system to work.
The implementation principle of detector is felt to fire control cigarette in the embodiment of this application does: when the conflagration breaing out, smog detection device 2 detects indoor smog concentration, and temperature-detecting device 3 detects the temperature of smog simultaneously, avoids appearing raising because of indoor dust and causes the possibility of this application device false alarm. When the indoor smoke concentration reaches the threshold of the smoke detection device 2 and the temperature of the smoke reaches the threshold set by the temperature detection device 3, the smoke monitoring device and the temperature detection device 3 can alarm the circuit feedback signal.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (10)
1. A fire-fighting smoke detector is characterized in that: comprises a shell (1) and a smoke detection device (2) fixedly connected in the shell (1); the shell (1) comprises a mounting seat (11) fixedly connected to a ceiling and a mounting shell (12) fixedly connected to the mounting seat (11);
the smoke detection device (2) is fixedly connected to the inside of the mounting shell (12), and the smoke detection device (2) comprises a fixing piece (21) fixedly connected to the inside of the mounting shell (12), a laser transmitter (22) fixedly connected to the inside of the fixing piece (21), a refraction component (23) detachably connected to the fixing piece (21), and a laser receiver (24) fixedly connected to the inside of the fixing piece (21); air vent (121) have been seted up on the side of installation shell (12), refraction subassembly (22) set up between laser emitter (22) and laser receiver (24), laser receiver (24) and warning circuit establish ties, the laser and refraction subassembly (23) of laser emitter (22) transmission are out of plumb, refraction subassembly (23) make laser receiver (24) can not receive laser, smoke channel (231) have been seted up to the inside of refraction subassembly (23), smoke channel (231) communicate with each other with air vent (121).
2. A fire smoke detector as set forth in claim 1, wherein: the bottom of installation shell (12) can be dismantled and be connected with dismantlement lid (13), mounting (21) fixed connection is inside the top of installation shell (12), the bottom butt of mounting (21) is on the upper surface of dismantling lid (13).
3. A fire smoke detector as set forth in claim 2, wherein: the fixing piece (21) is provided with a horizontal installation groove (211), the refraction component (23) is horizontally installed in the installation groove (211), and the refraction component (23) is in interference fit with the installation groove (211).
4. A fire smoke detector as set forth in claim 3, wherein: and the inner wall of the fixing piece (21) is coated with light-absorbing paint.
5. A fire smoke detector as set forth in claim 1, wherein: the inside fixedly connected with of installation shell (12) is used for detecting temperature-detecting device (3) of smog temperature, temperature-detecting device (3) and smog detection device (2) are established ties on alarm circuit.
6. A fire smoke detector as set forth in claim 5, wherein: the temperature detection device (3) comprises a detection component (31) for detecting the temperature of smoke and a connecting component (32); detection components (31) and coupling assembling (32) fixed connection are on installation shell (12), detection components (31) communicate with each other with coupling assembling (32), detection components (31) and coupling assembling (32) all are connected with warning circuit, detection components (31) and coupling assembling (32) constitute a normally open switch.
7. A fire smoke detector as set forth in claim 5, wherein: detection component (31) are including storage tube (311) of fixed connection on installation shell (12), the inside flourishing liquid mercury of storage tube (311), first electrically conductive piece (312) of fixedly connected with on storage tube (311), the one end and the mercury of first electrically conductive piece (312) are connected, and the other end is connected with warning circuit.
8. A fire smoke detector as set forth in claim 7, wherein: coupling assembling (32) are including connecting pipe (321) and the second of fixed connection at connecting pipe (321) top (322) that fixed connection is on installation shell (12), the one end that the second made electric (322) is located the inside of connecting pipe (321), the other end and the warning circuit of the second that electrically conducts (322) are connected, connecting pipe (321) communicate with each other with storage tube (311).
9. A fire smoke detector as set forth in claim 8, wherein: the top of the connecting pipe (321) is fixedly connected with a mounting seat (323), a mounting hole is formed in the mounting seat (323), and the second conductive piece (322) is fixedly connected inside the mounting hole.
10. A fire smoke detector as set forth in claim 8, wherein: the inner diameter of the connecting pipe (322) is smaller than that of the storage pipe (311), and the liquid level of the mercury is lower than that of the second conductive member (322).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087447.1A CN114495413B (en) | 2022-01-25 | 2022-01-25 | Fire-fighting smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210087447.1A CN114495413B (en) | 2022-01-25 | 2022-01-25 | Fire-fighting smoke detector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114495413A true CN114495413A (en) | 2022-05-13 |
| CN114495413B CN114495413B (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210087447.1A Active CN114495413B (en) | 2022-01-25 | 2022-01-25 | Fire-fighting smoke detector |
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| CN (1) | CN114495413B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226852A (en) * | 2008-02-02 | 2008-07-23 | 张陈 | Temperature-sensing switch for miniature thermal expansion fixed electrical contact |
| CN102844798A (en) * | 2010-04-16 | 2012-12-26 | W·霍赛特 | Fire detector for monitoring room by means of combination of smoke density measurement and temperature measurement |
| CN204405627U (en) * | 2015-01-04 | 2015-06-17 | 深圳市查知科技有限公司 | aspirated smoke detection system |
| CN206194069U (en) * | 2016-12-01 | 2017-05-24 | 许昌市建设路小学 | Fire alarm |
| EP3745371A1 (en) * | 2019-05-28 | 2020-12-02 | Siterwell Electronics Co., Limited | Smoke detection method, smoke detection device, smoke alarm and storage medium |
| CN213483062U (en) * | 2020-12-16 | 2021-06-18 | 苏州市翌科斯拓机电科技有限公司 | Smoke alarm |
-
2022
- 2022-01-25 CN CN202210087447.1A patent/CN114495413B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101226852A (en) * | 2008-02-02 | 2008-07-23 | 张陈 | Temperature-sensing switch for miniature thermal expansion fixed electrical contact |
| CN102844798A (en) * | 2010-04-16 | 2012-12-26 | W·霍赛特 | Fire detector for monitoring room by means of combination of smoke density measurement and temperature measurement |
| CN204405627U (en) * | 2015-01-04 | 2015-06-17 | 深圳市查知科技有限公司 | aspirated smoke detection system |
| CN206194069U (en) * | 2016-12-01 | 2017-05-24 | 许昌市建设路小学 | Fire alarm |
| EP3745371A1 (en) * | 2019-05-28 | 2020-12-02 | Siterwell Electronics Co., Limited | Smoke detection method, smoke detection device, smoke alarm and storage medium |
| CN213483062U (en) * | 2020-12-16 | 2021-06-18 | 苏州市翌科斯拓机电科技有限公司 | Smoke alarm |
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| Publication number | Publication date |
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| CN114495413B (en) | 2022-11-11 |
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