CN106056830A - Maze cover for photoelectric smoke sensing detector - Google Patents
Maze cover for photoelectric smoke sensing detector Download PDFInfo
- Publication number
- CN106056830A CN106056830A CN201610440059.1A CN201610440059A CN106056830A CN 106056830 A CN106056830 A CN 106056830A CN 201610440059 A CN201610440059 A CN 201610440059A CN 106056830 A CN106056830 A CN 106056830A
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- Prior art keywords
- smoke
- cover body
- light
- labyrinth
- cover
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Classifications
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
- G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
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- Analytical Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention discloses a maze cover for a photoelectric smoke sensing detector, which solves the problems that the maze cover avoids entry of external strong light while smoke particles cannot completely enter in a fire. The maze cover comprises a cover body adopting a round table structure, and at least three smoke guide posts arranged uniformly in the manner of surrounding the top of the cover body one cycle; the smoke guide posts are raised on the cover body, one respective end of all the smoke guide posts are jointly intersected at the center point of the cover body, and a smoke guide shading device for shading external light to avoid influencing the smoke sensing effect of the detector while introducing external smoke particles into the cover body is arranged on the cover body and the adjacent smoke guide posts. The maze cover is reasonable in design, simple in assembly and low in cost, enables smoke particles to enter more quickly and more comprehensively, and can simultaneously avoid entry of external light, large particles and worms, so the maze cover is suitable for popularization and application.
Description
Technical field
The present invention relates to smoke detector field, particularly relate to the labyrinth of a kind of optical detector of fire smoke.
Background technology
In the inside of optical detector of fire smoke, smoke particle enters in the base of labyrinth generally by labyrinth, so, fan
The structures shape smoke particle of palace cover enters direction and the concentration in labyrinth.
At present, existing detector must assure that smog can smoothly enter detecting area, therefore, for reaching shading effect
Really, it will usually on labyrinth, design some brake sacks, these brake sacks annular array on cover surrounds lightproof ventilated wall, is used for
Realizing the stop to extraneous light, then the cross point of brake sack can form the smoke inlet for being passed through smoke particle.Although it is permissible
Realize shading and enter cigarette, but these designs of existing labyrinth bring following shortcoming the most simultaneously: (1) smoke particle is easy when entering
It is blocked sheet to block, it is impossible to well in sensitizing range, labyrinth, cause detector to judge to make a fault, very to the concentration of smog
To being the situation that false alarm occurs；(2) unreasonable due to structure design, extraneous high light light is the most inevitably through hiding
Mating plate enters into search coverage, have impact on the effect of smoke detection further；(3) during use, it is necessary in brake sack shape
Add fly net outside the ventilative wall become, prevent the insects suitable with gap from entering, not only increase the expense of material and processing
Time, and assemble the most relatively complicated.
Therefore, how to improve the structure of labyrinth, enable more fully to be passed through smoke particle, and avoid light completely
Inject, thus improve the smoke sentivity of smoke detector, become the subject matter needing solution for those skilled in the art badly.
Summary of the invention
For above-mentioned the deficiencies in the prior art, the invention provides the labyrinth of a kind of optical detector of fire smoke, it can be very
While realizing well smoke particle entrance labyrinth, it is to avoid injecting of outside high light light.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of labyrinth of optical detector of fire smoke, including the cover body of employing frustum cone structure, and at least three and cincture
What this covering on top was uniformly arranged for one week leads the column of smoke；The described column of smoke of leading is convex on cover body, and all of to lead the column of smoke respective
One end intersects at the central point of cover body jointly, and on cover body and adjacent leading is equipped with between the column of smoke for by outside cigarette
Extraneous light stops while being passed through to cover body by particle, lead cigarette light shielding device with avoid affecting detector sense cigarette effect.
Further, the described light shielding device of falling cigarette includes that several are opened on cover body and leading in parallel longitudinal arrangement
Cigarette groove, and several are arranged on cover body inwall and arranged in parallel for being stopped by extraneous light in laterally-graded formula
Smoke guide wall；Described smoke guide wall is positioned at below smoke guide trough, and all of smoke guide wall is formed with smoke guide trough cross coupled and is used for importing outside
The smoke inlet matrix of smoke particle.
Yet further, described cover body is provided with light-guiding pillar socket.
Further, described cover body bottom margin is provided with lobe, and is additionally provided with draw-in groove in lobe.
Compared with prior art, the method have the advantages that
(1) present configuration is reasonable, it is ingenious to design, and it devises cover body, leads the column of smoke, smoke guide trough and smoke guide wall, passes through smoke guide trough
Form smoke inlet matrix with the cross-over design of smoke guide wall, and combine the frustum cone structure of cover body and the stepped design of smoke guide wall,
On the one hand smoke particle can be fully introduced into cover body, on the other hand can realize the outside high light light to different incidence angles degree
Stop, it is entirely avoided the entrance of light.Consequently, it is possible to after using the present invention on detector, when breaking out of fire, smoke particle energy
The most quickly, enter sufficiently in detector, be then accurately judged to the concentration of smog by detector, and quickly realize corresponding stage
Other warning, is the probability avoiding false alarm well.
(2) present invention is combined the smoke inlet matrix formed by smoke guide trough with smoke guide wall, there is not any bigger gap,
Ensure while cigarette, it is possible to prevent extraneous larger particles and the entrance of insects, thus without installing insect protected the most on the detector additional
Net, its assembling process is simple, convenient.
(3) cost performance of the present invention is high, practical and production efficiency is high, with low cost, and therefore, it has widely should
By prospect, it is highly suitable for large-scale promotion application in smoke detector field.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 be in Fig. 1 A to structural representation.
Fig. 3 is the operation principle schematic diagram of the present invention.
Fig. 4 is the structural representation of a kind of smoke detector using the present invention.
Fig. 5 is the structural representation of labyrinth base in Fig. 4.
Wherein, corresponding entitled of reference:
1-cover body, 2-leads the column of smoke, 3-smoke guide trough, 4-smoke guide wall, 5-smoke inlet matrix, 6-light-guiding pillar socket, 7-lobe, 8-card
Groove, 9-labyrinth base, 10-hollow cavity, 11-buckle, 12-luminous tube, 13-transmission channel, 14-receives pipe, and 15-receives logical
Road, 16-shielding strip, 17-bends catch, and 18-converts into face, 19-shading wall, 20-docking port.
Detailed description of the invention
The invention will be further described with embodiment in explanation below in conjunction with the accompanying drawings, and the mode of the present invention includes but not only limits
In following example.
As shown in Figure 1, 2, the invention provides a kind of novel labyrinth, can be used on optical detector of fire smoke.This
The bright cover body 1 including using frustum cone structure, at least three and lead the column of smoke 2 around what this cover body 1 top was uniformly arranged for one week
(the present embodiment is provided with six), the light-guiding pillar socket 6 being arranged on cover body 1, it is arranged on the lobe 7 of cover body 1 bottom margin, with
And the draw-in groove 8 being arranged in lobe 7.The described column of smoke of leading is convex on cover body 1, and all of respective one end of the column of smoke of leading is total to
With intersecting at the central point of cover body 1, and on cover body 1 and adjacent leading be equipped with between the column of smoke lead cigarette light shielding device (according to
Leading the column of smoke and be provided with the situation of six, the cigarette light shielding device of leading in the present embodiment also is provided with six).
As the main innovation point of the present invention, described leads cigarette light shielding device for being passed through to cover body by outside smoke particle
While, by outside high light light barrier, to avoid affecting the sense cigarette effect of detector.Specifically, single lead cigarette shading dress
Put and include that several are opened on cover body 1 and smoke guide trough 3 in parallel longitudinal arrangement, and several are arranged on cover body 1 inwall
Upper and arranged in parallel in the laterally-graded formula smoke guide wall 4 being used for stopping extraneous light；Described smoke guide wall 4 is positioned at smoke guide trough 3
Lower section, all of smoke guide wall and smoke guide trough cross coupled form the smoke inlet matrix 5 for importing outside smoke particle.
The operation principle of the present invention is as it is shown on figure 3, when outside exists smoke particle, smoke particle and light are simultaneously via entering cigarette
Mouth matrix 5 enters labyrinth, and now, due to the effect of smoke guide wall 4, smoke particle can be introduced to smoothly in cover body 1, but is equally
Smoke guide wall 4, due to its stepped design, can make light incident from different perspectives all be blocked (i.e. reflection) and go back, as
This one, just can guarantee that smoke particle can faster more fully enter while labyrinth, it is to avoid extraneous light injects fan well
In the cover of palace.
Shown in Fig. 4, being that the one of the present invention practices structure chart, the most complete optical detector of fire smoke (comprises fan
Palace cover and labyrinth base 9 two parts), and shown in Fig. 5, be then the exploded pictorial of labyrinth base 9 in this optical detector of fire smoke
Figure.
First introducing the structure of lower labyrinth base 9, it includes hollow cavity 10, buckle 11, luminous tube 12, transmission channel
13, receive pipe 14, receive passage 15, shielding strip 16, bending catch 17 and shading wall 19.Described buckle 11 is arranged on hollow cavity
10 outer walls, for matching with the draw-in groove 8 on labyrinth, it is achieved labyrinth and the connection of labyrinth base, and leading on labyrinth
Light beam socket is then corresponding with the docking port 20 being arranged on hollow cavity, and it is right to be inserted into via light-guiding pillar socket 6 for light-guiding pillar
In interface.Described shielding strip 16 is inserted on the groove being arranged on hollow cavity 10 outer wall.
Described luminous tube 12 is provided with two, and all uses blue light and infrared light integral tube (to use double color luminotron
On the one hand benefit is to improve the sensitivity to black smoke response, is on the other hand that double transmitting tube combines two-colour tube and can form hollow cavity
Internal 360 ° send detection light without dead angle, improve the sensitivity of detector)；Described transmission channel 13 is arranged on hollow cavity 10
In, its quantity is also two, inserts luminous tube for correspondingly.Described reception pipe 14 is provided with one, and described reception is led to
Road 15 is also disposed in hollow cavity 10, is used for inserting reception pipe 14.Luminous tube 12 is for launching light (i.e. in hollow cavity 10
Detection light), the light that one of them luminous tube sends is passed through to hollow cavity 10 via transmission channel, forms a light path and (claims
For A light path), in like manner, the light that another luminous tube sends also form another light path (referred to as B light path)；A light path central shaft with
Receiving tube hub axle and form the angle forward scattering path more than 90 °, it is little that B light path central shaft and reception tube hub axle form angle
In the back scattering path of 90 °.When smoke particle enters in hollow cavity 10, detection scattering of light direction can be changed so that connect
Closed tube 14 receives the detection light that luminous tube is launched, and is then thus converted into signal of telecommunication output to the controller being connected with detector
In process, it is judged that occurring in that smog, then carrying out reporting to the police, (in a lot of environment, smog is often important spy on fire
Levy).
Being not difficult to find out from above, when not entering smoke particle, the detection light how making luminous tube 12 launch is not received pipe 14
Receive, and receive pipe 14 when smoke particle enters and can receive detection light quickly, smoothly, become the core design into labyrinth base.This
Embodiment is that this specific practice used is: the structure design that 1, above-mentioned labyrinth avoids extraneous light to inject (is mainly led
Cigarette wall and stepped arrangement design thereof)；2, shading wall 19 is arranged on hollow cavity 10 inside, and is positioned at transmission channel 13 and connects
Receiving between passage 15, it uses " 7 " font structure to design；3, bending catch 17 is around hollow cavity 10 inwall 225 ° setting, curved
The bending place (i.e. converting into face 18) of folding catch 17 is designed for obtuse angle, and the bending catch of wherein half is near transmission channel, another
The bending catch of half is near receiving passage；Bending catch and the bending catch bending side near reception passage near transmission channel
To on the contrary；3rd combination with the 4th, the light that can prevent luminous tube 12 from launching directly is received pipe 14 and is absorbed；4, at labyrinth
Cover body on add a shell lucifuge lid, prevent internal detection light through being run out of by smoke inlet matrix after scattering and multiple reflections
Outside detector.
By above-mentioned design, the labyrinth base 9 of the present embodiment design receives pipe when can realize not entering smoke particle and receives
Detection light can be received during less than detection light, entrance smoke particle, thus realize the smoke detector accurate sense to smokescope
Should, and then realize the warning of appropriate level.
The present invention is designed by rational structure, not only makes labyrinth possess quick, to be accurately passed through smoke particle condition,
And injecting and larger particles and the entrance of insects of outside high light light can be avoided completely, and designed labyrinth base
Also possess and have well sense cigarette effect, receive pipe when not entering smoke particle and do not receive detection light, when entering smoke particle then
Quickly receive detection light, and carry out electro-optical signal conversion, then realize Rapid Alarm.Therefore, the present invention and the photoelectricity of composition thereof
Smoke detector is the most novel in design, stable and reliable for performance, and the sensitivity of smoke detection is greatly improved, and at utmost keeps away
Exempt from the probability of false alarm.The present invention and constitute optical detector of fire smoke compared to existing technology for, be respectively provided with prominent
Substantive distinguishing features and significantly progress.
Above-described embodiment is only one of the preferred embodiment of the present invention, should not be taken to limit the protection model of the present invention
Enclosing, all body design thought in the present invention and the change having no essential meaning made mentally or polishing, it is solved
Technical problem is the most consistent with the present invention, within all should being included in protection scope of the present invention.
Claims (4)
1. the labyrinth of an optical detector of fire smoke, it is characterised in that include the cover body (1) using frustum cone structure, Yi Jizhi
Be less three and within one week, be uniformly arranged around this cover body (1) top lead the column of smoke (2)；Described lead the column of smoke on cover body (1) in
Convex shape, all of respective one end of the column of smoke of leading intersects at the central point of cover body (1) jointly, and upper and adjacent at cover body (1)
Lead be equipped with between the column of smoke while outside smoke particle is passed through to cover body by extraneous light stop, with avoid impact
Detector sense cigarette effect lead cigarette light shielding device.
The labyrinth of a kind of optical detector of fire smoke the most according to claim 1, it is characterised in that the described shading of falling cigarette fills
Put and include that several are opened in the cover body (1) smoke guide trough (3) above and in parallel longitudinal arrangement, and several are arranged on cover body
(1) arranged in parallel for the smoke guide wall (4) that extraneous light is stopped on inwall and in laterally-graded formula；Described smoke guide wall (4)
Being positioned at smoke guide trough (3) lower section, all of smoke guide wall and smoke guide trough cross coupled form the smoke inlet for importing outside smoke particle
Matrix (5).
The labyrinth of a kind of optical detector of fire smoke the most according to claim 2, it is characterised in that on described cover body (1)
It is provided with light-guiding pillar socket (6).
The labyrinth of a kind of optical detector of fire smoke the most according to claim 3, it is characterised in that described cover body (1) end
Edge, portion is provided with lobe (7), and is additionally provided with draw-in groove (8) in lobe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440059.1A CN106056830B (en) | 2016-06-20 | 2016-06-20 | A kind of labyrinth of optical detector of fire smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610440059.1A CN106056830B (en) | 2016-06-20 | 2016-06-20 | A kind of labyrinth of optical detector of fire smoke |
Publications (2)
| Publication Number | Publication Date |
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| CN106056830A true CN106056830A (en) | 2016-10-26 |
| CN106056830B CN106056830B (en) | 2019-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201610440059.1A Active CN106056830B (en) | 2016-06-20 | 2016-06-20 | A kind of labyrinth of optical detector of fire smoke |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516396A (en) * | 2017-09-05 | 2017-12-26 | 深圳市泰和安科技有限公司 | A kind of two-way photoelectric smoke sensor |
| CN108106978A (en) * | 2016-11-25 | 2018-06-01 | 南宁富桂精密工业有限公司 | Smog darkroom and the smoke detector using the smog darkroom |
| CN110322658A (en) * | 2019-08-02 | 2019-10-11 | 四川赛科安全技术有限公司 | A kind of top formula is reversely into cigarette labyrinth structure and its implementation |
| CN110718037A (en) * | 2019-11-04 | 2020-01-21 | 深圳市泛海三江电子股份有限公司 | Labyrinth smoke inlet structure of smoke alarm |
| CN110992640A (en) * | 2019-12-23 | 2020-04-10 | 赛特威尔电子股份有限公司 | Smoke-sensing fire alarm |
| CN112368752A (en) * | 2018-06-25 | 2021-02-12 | 报知希株式会社 | Fire detection device |
| CN112562253A (en) * | 2019-09-26 | 2021-03-26 | 杭州海康消防科技有限公司 | Smoke sensor, smoke alarm method and smoke alarm device |
| WO2021104148A1 (en) * | 2019-11-27 | 2021-06-03 | Xuedan Wu | Detection component, detection system and fire alarm for photoelectric smoke detection fire alarm |
| US11790746B2 (en) | 2021-02-02 | 2023-10-17 | Carrier Corporation | Smoke entry solution for multi wave multi angle safety device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106978A (en) * | 2016-11-25 | 2018-06-01 | 南宁富桂精密工业有限公司 | Smog darkroom and the smoke detector using the smog darkroom |
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| CN112562253A (en) * | 2019-09-26 | 2021-03-26 | 杭州海康消防科技有限公司 | Smoke sensor, smoke alarm method and smoke alarm device |
| CN112562253B (en) * | 2019-09-26 | 2022-06-03 | 杭州海康消防科技有限公司 | Smoke sensor, smoke alarm method and smoke alarm device |
| CN110718037A (en) * | 2019-11-04 | 2020-01-21 | 深圳市泛海三江电子股份有限公司 | Labyrinth smoke inlet structure of smoke alarm |
| WO2021104148A1 (en) * | 2019-11-27 | 2021-06-03 | Xuedan Wu | Detection component, detection system and fire alarm for photoelectric smoke detection fire alarm |
| CN110992640A (en) * | 2019-12-23 | 2020-04-10 | 赛特威尔电子股份有限公司 | Smoke-sensing fire alarm |
| US11790746B2 (en) | 2021-02-02 | 2023-10-17 | Carrier Corporation | Smoke entry solution for multi wave multi angle safety device |
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| CN106056830B (en) | 2019-01-08 |
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