CN206147893U - Smoke detecting device - Google Patents
Smoke detecting device Download PDFInfo
- Publication number
- CN206147893U CN206147893U CN201621220775.0U CN201621220775U CN206147893U CN 206147893 U CN206147893 U CN 206147893U CN 201621220775 U CN201621220775 U CN 201621220775U CN 206147893 U CN206147893 U CN 206147893U
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- China
- Prior art keywords
- smoke
- cavity
- infrared
- top cover
- inner core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 239000000779 smoke Substances 0.000 title claims abstract description 50
- 230000003287 optical effect Effects 0.000 claims description 21
- 230000011514 reflex Effects 0.000 claims description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 3
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a smoke detecting device, it is including being conical casing, the bottom of casing is equipped with the base, be equipped with the circuit board on the base, be equipped with smoke sensor on the circuit board, the last top cap that is equipped with of smoke sensor, the top cap is formed with a cavity with smoke sensor, the lateral part of cavity is equipped with the filter screen that encircles in smoke sensor, the center department of top cap is equipped with the inner tube, the inner tube extends in to the cavity, two optics passageways have been seted up in the smoke sensor, the one end of two optics passageways is all towards the inner tube, the other end of two optics passageways extends the syncline below respectively, be provided with infrared transmitting tubes and infrared receiving tube in two optics passageways respectively, infrared transmitting tubes and infrared receiving tube's pin all welds in the circuit board, when smog via filter screen, cavity and when getting into the inner tube, the light that infrared transmitting tubes sent reflects to infrared receiving tube through smog, infrared receiving tube is to a circuit board output signal of telecommunication. The utility model discloses low cost, high, the compact structure of sensitivity.
Description
Technical field
This utility model is related to fire protection device, more particularly to a kind of smoke detector.
Background technology
Smoke detector also known as fire smog detector, Smoke Sensor, smoke inductor etc., for indoor cigarette
Mist is detected that existing smoke detector is typically with special ion type smog concentration sensing chip as sensing unit
Part, although it can detect smokescope, sensor it is relatively costly, and need some signal acquisition circuits to match
Close, cause the complex structure of product.Meanwhile, existing smoke detector majority is to be wrapped up sensor etc. using shell
Come, only the sidepiece in shell opens a window, this mode will cause smog to be difficult to reach sensor location, cause smoke detection
The sensitivity decrease of device.
Utility model content
The technical problems to be solved in the utility model is, for the deficiencies in the prior art, there is provided a kind of with low cost, spirit
Sensitivity is high, the smoke detector of compact conformation.
To solve above-mentioned technical problem, this utility model is adopted the following technical scheme that.
A kind of smoke detector, it includes tapered housing, and the bottom of the housing is provided with base, the base
Wiring board is provided with, the wiring board is provided with smoke inductor, and the smoke inductor is provided with top cover, the top cover and cigarette
Mist induction apparatuss are formed with a cavity, and the sidepiece of the cavity is provided around the filter screen in smoke inductor, the center of the top cover
Place is provided with inner core, and the inner core extends into cavity, and two optical channels are offered in the smoke inductor, and two optics lead to
The V-shaped setting in road, towards inner core, the other end of two optical channels oliquely downward prolongs respectively for one end of two optical channels
Stretch, infrared transmitting tube and infrared receiving tube, the infrared transmitting tube and infrared receiving tube are respectively arranged with two optical channels
Pin be welded in wiring board, the top of the housing is provided with overhead guard, and the sidepiece of the overhead guard is provided with multiple columns, adjacent two
Opening is formed between individual column, the overhead guard covers at top cover, step is formed with the inside of the column, the step card sets
In the edge of top cover, formed between overhead guard and top cover space to make, when smog via opening, filter screen, cavity and enter inner core
When, the light that the infrared transmitting tube sends reflexes to infrared receiving tube through smog, and infrared receiving tube is electric to wiring board output one
Signal.
Preferably, the bottom of the overhead guard is formed with multiple hooks, and the top of the housing offers multiple bayonet sockets, described
Hook is alignd one by one with bayonet socket, and the hook is sticked in the bayonet socket.
Preferably, the wiring board is provided with display lamp, and the display lamp passes through the housing.
Preferably, the optical channel is provided with upper edge near one end of inner core.
Preferably, the upper edge inclines to the inner side of optical channel.
In smoke detector disclosed in this utility model, smoke inductor is provided with two optical channels so that infrared
The infrared light that transmitting tube sends can inject inner core, wherein, top cover, inner core and filter screen constitute labyrinth, and smog is via opening, filter
Net, cavity and when entering inner core so that infrared ray is reflected, after infrared receiving tube receiving infrared-ray, to wiring board output one
The signal of telecommunication, and then smog alarm is realized, the smoke inductor of said mechanism, its reality by the way of infrared light reflection, collection
Showed smoke detection, compared to existing technology in ion type smog sensor for, this utility model cost is cheaper, while
Without the need for complicated Acquisition Circuit so that the circuit structure on wiring board is simpler.Simultaneously as overhead guard fastens with housing,
So that overhead guard is easily detachable, in order to clearing up, changing labyrinth.Additionally, can hold top cover under step effect, not only make
Product structure is compacter, also causes to be formed between overhead guard and top cover the space for being easy to air circulation, thus smog can be with gas
Flow and enter in labyrinth.
Description of the drawings
Fig. 1 is the axonometric chart of this utility model smoke detector.
Fig. 2 is the side view of this utility model smoke detector.
Fig. 3 is the exploded view of this utility model smoke detector.
Fig. 4 is the axonometric chart of smoke inductor.
Fig. 5 is the sectional view of smoke inductor.
Fig. 6 is the structure chart of overhead guard and housing.
Specific embodiment
This utility model is described in more detail with reference to the accompanying drawings and examples.
The utility model discloses a kind of smoke detector, with reference to shown in Fig. 1 to Fig. 6, it includes tapered shell
Body 1, the bottom of the housing 1 is provided with base 2, and the base 2 is provided with wiring board 3, and the wiring board 3 is provided with smoke sensing
Device 4, the smoke inductor 4 is provided with top cover 5, and the top cover 5 is formed with a cavity 6, the cavity 6 with smoke inductor 4
The sidepiece filter screen 7 that is provided around in smoke inductor 4, the center of the top cover 5 is provided with inner core 8, and the inner core 8 is to cavity
Extend in 6, in the smoke inductor 4 two optical channels 9, the V-shaped setting of two optical channels 9, two optics are offered
Towards inner core 8, the other end of two optical channels 9 oliquely downward extends respectively, in two optical channels 9 for one end of passage 9
The pin for being respectively arranged with infrared transmitting tube 10 and infrared receiving tube 11, the infrared transmitting tube 10 and infrared receiving tube 11 is welded
Wiring board 3 is connected to, the top of the housing 1 is provided with overhead guard 12, and the sidepiece of the overhead guard 12 is provided with multiple columns 14, two neighboring
Opening 13 is formed between column 14, the overhead guard 12 covers at top cover 5, and the inner side of the column 14 is formed with step 15, institute
State the edge that step 15 is arranged in top cover 5, to make between overhead guard 12 and top cover 5 formation space 18, when smog via opening 13,
Filter screen 7, cavity 6 and when entering inner core 8, the light that the infrared transmitting tube 10 sends reflexes to infrared receiving tube 11 through smog,
Infrared receiving tube 11 to wiring board 3 exports a signal of telecommunication.
In above-mentioned smoke detector, smoke inductor 4 is provided with two optical channels 9 so that infrared transmitting tube 10
The infrared light for going out can inject inner core 8, wherein, top cover 5, inner core 8 and filter screen 7 constitute labyrinth, smog via opening 13, filter screen 7,
Cavity 6 and when entering inner core 8 so that infrared ray is reflected, and after the receiving infrared-ray of infrared receiving tube 11, is exported to wiring board 3
One signal of telecommunication, and then smog alarm is realized, the smoke inductor of said mechanism, it is by the way of infrared light reflection, collection
Realize smoke detection, compared to existing technology in ion type smog sensor for, this utility model cost is cheaper, together
Shi Wuxu complicated Acquisition Circuit so that the circuit structure on wiring board 3 is simpler.Simultaneously as overhead guard 12 and the phase of housing 1
Engaging so that overhead guard 12 is easily detachable, in order to clearing up, changing labyrinth.Additionally, can be by top cover 5 in the case where step 15 is acted on
Hold, not only make product structure compacter, also cause to be formed between overhead guard 12 and top cover 5 space 18 for being easy to air circulation,
Thus smog can be entered in labyrinth with air-flow.
With regard to overhead guard 12 and the concrete annexation of housing 1, the bottom of the overhead guard 12 is formed with multiple hooks 16, described
The top of housing 1 offers multiple bayonet sockets 17, and the hook 16 is alignd one by one with bayonet socket 17, and the hook 16 be sticked in it is described
In bayonet socket 17.
Used as a kind of optimal way, the wiring board 3 is provided with display lamp 19, and the display lamp 19 passes through the housing 1.
In the present embodiment, the optical channel 9 is provided with along 20 near one end of inner core 8.Further, along 20 on described
Incline to the inner side of optical channel 9.Effect on this along 20 is that part infrared light is blocked, to avoid infrared light excessive
It is distributed and the situation of false alarm occurs.
The above is this utility model preferred embodiment, is not limited to this utility model, all in this practicality
Modification, equivalent or improvement made in new technical scope etc., should be included in the model that this utility model is protected
In enclosing.
Claims (5)
1. a kind of smoke detector, it is characterised in that include tapered housing, the bottom of the housing is provided with base,
The base is provided with wiring board, and the wiring board is provided with smoke inductor, and the smoke inductor is provided with top cover, described
Top cover is formed with a cavity with smoke inductor, and the sidepiece of the cavity is provided around the filter screen in smoke inductor, the top
The center of lid is provided with inner core, and the inner core extends into cavity, offers two optical channels in the smoke inductor, and two
The V-shaped setting of individual optical channel, towards inner core, the other end of two optical channels is respectively to oblique for one end of two optical channels
Lower section extends, and is respectively arranged with infrared transmitting tube and infrared receiving tube in two optical channels, the infrared transmitting tube and infrared
The pin of reception pipe is welded in wiring board, and the top of the housing is provided with overhead guard, and the sidepiece of the overhead guard is provided with multiple columns,
Opening is formed between two neighboring column, the overhead guard covers at top cover, is formed with step on the inside of the column, described
Rank is arranged in the edge of top cover, formed between overhead guard and top cover space to make, when smog via opening, filter screen, cavity and enter
When entering inner core, the light that the infrared transmitting tube sends reflexes to infrared receiving tube through smog, to make infrared receiving tube to circuit
Plate exports a signal of telecommunication.
2. smoke detector as claimed in claim 1, it is characterised in that the bottom of the overhead guard is formed with multiple hooks,
The top of the housing offers multiple bayonet sockets, and the hook is alignd one by one with bayonet socket, and the hook is sticked in the bayonet socket
It is interior.
3. smoke detector as claimed in claim 1, it is characterised in that the wiring board is provided with display lamp, the finger
Show that lamp passes through the housing.
4. smoke detector as claimed in claim 1, it is characterised in that the optical channel is provided near one end of inner core
Upper edge.
5. smoke detector as claimed in claim 4, it is characterised in that the upper edge to the inner side of optical channel inclines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220775.0U CN206147893U (en) | 2016-11-11 | 2016-11-11 | Smoke detecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621220775.0U CN206147893U (en) | 2016-11-11 | 2016-11-11 | Smoke detecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206147893U true CN206147893U (en) | 2017-05-03 |
Family
ID=58626458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621220775.0U Active CN206147893U (en) | 2016-11-11 | 2016-11-11 | Smoke detecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206147893U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215277A (en) * | 2018-11-21 | 2019-01-15 | 刘强 | A kind of intelligent city's fire alarm equipment |
| CN110718038A (en) * | 2019-11-08 | 2020-01-21 | 深圳市泛海三江电子股份有限公司 | A Novel Labyrinth Structure and Photoelectric Smoke Detector for Preventing False Alarms |
| CN113533149A (en) * | 2020-04-15 | 2021-10-22 | 杭州海康消防科技有限公司 | Detection device welding packaging module and labyrinth assembly of photoelectric smoke detector |
-
2016
- 2016-11-11 CN CN201621220775.0U patent/CN206147893U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109215277A (en) * | 2018-11-21 | 2019-01-15 | 刘强 | A kind of intelligent city's fire alarm equipment |
| CN109215277B (en) * | 2018-11-21 | 2021-12-17 | 应镇阳 | Fire alarm device is used in intelligence city |
| CN110718038A (en) * | 2019-11-08 | 2020-01-21 | 深圳市泛海三江电子股份有限公司 | A Novel Labyrinth Structure and Photoelectric Smoke Detector for Preventing False Alarms |
| CN113533149A (en) * | 2020-04-15 | 2021-10-22 | 杭州海康消防科技有限公司 | Detection device welding packaging module and labyrinth assembly of photoelectric smoke detector |
| CN113533149B (en) * | 2020-04-15 | 2024-06-07 | 杭州海康消防科技有限公司 | Detection device welding packaging module of photoelectric smoke detector and labyrinth assembly |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |