CN105741478A - Labyrinth type smog detecting smoke detector - Google Patents
Labyrinth type smog detecting smoke detector Download PDFInfo
- Publication number
- CN105741478A CN105741478A CN201610209008.8A CN201610209008A CN105741478A CN 105741478 A CN105741478 A CN 105741478A CN 201610209008 A CN201610209008 A CN 201610209008A CN 105741478 A CN105741478 A CN 105741478A
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- CN
- China
- Prior art keywords
- labyrinth type
- substrate
- smoke detector
- upper casing
- light barrier
- 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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- 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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- 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 invention discloses a labyrinth type smog detecting smoke sensor, which comprises an upper shell and a lower shell which is in detachable connection with the upper shell. The upper shell and the lower shell form a shell. A substrate and a clamping device are fixed in the shell. An optical fiber is installed in the clamping device. A light barrier surrounds an upper surface of the substrate, and a detection region is formed between the light barrier and the substrate. The light barrier includes a first baffle plate and a second baffle plate. An included angle is formed between the first baffle plate and the second baffle plate. The clamping device internally provided with the optical fiber is arranged right above the detection region. The labyrinth type smog detecting smoke sensor can prevent the interference from external light to the labyrinth type smog detecting smoke detector, improves the sensitivity and reduces the false alarm rate. The detachable connection of the upper shell and the lower shell is convenient for the installation, cleaning and maintenance of a base plate and the clamping device in the shell and the light barrier.
Description
Technical field
The present invention relates to a kind of smoke detector, the smoke detector of especially a kind of labyrinth type Smoke Detection.
Background technology
Smoke detector and fire-alarm one warning system of composition, on-the-spot fire condition can be detected and feed back to alarm by it, electronic equipment is had owing to existing smoke detector is internally installed, when wet weather comes interim, internal electronic equipment being produced impact, existing smoke detector anti-interference is poor simultaneously, sensitivity is low, rate of false alarm is high, and structure is complicated, not easily installs, dismantles and cleaning.
Summary of the invention
Present invention aim to address the deficiencies in the prior art, it is provided that the smoke detector of a kind of labyrinth type Smoke Detection.
A kind of technical scheme of the present invention:
A kind of smoke detector of labyrinth type Smoke Detection, including upper casing and the lower casing that removably connects with upper casing, upper casing and lower casing form a housing, a substrate and the internally installed clamp device having optical fiber it is fixed with in housing, the upper surface of substrate is surrounded with light barrier, and between light barrier and substrate, forming detection zone, light barrier includes the first baffle plate and is the second baffle of angle with the first baffle plate, and the internally installed clamp device having optical fiber is positioned at the surface of detection zone.
A kind of preferred version is the upper surface that light barrier is uniformly arranged in substrate, and the angle of the first baffle plate and second baffle is 30 degree～120 degree.
The angle that a kind of preferred version is the first baffle plate and second baffle is 90 degree.
A kind of preferred version is the draw-in groove being formed around L-shaped of upper casing, and lower casing is provided with the buckle corresponding with draw-in groove.
The center that a kind of preferred version is substrate is provided with hole, location, and lower casing is provided with the positioning boss corresponding with positioning hole.
The base plate that a kind of preferred version is lower casing is provided with air inlet, and air inlet is around the surrounding of substrate.
The upper surface that a kind of preferred version is substrate is additionally provided with claw, and the medial surface of upper casing is provided with the screens hole corresponding with claw, and substrate is cooperated to fix with upper casing be connected by claw and screens hole.
The medial surface that a kind of preferred version is upper casing is additionally provided with the fixed claw for fixing clamp device.
A kind of preferred version is the fixing hole that the surface of upper casing is provided with the smoke detector for fixing labyrinth type Smoke Detection.
Summary technical scheme, beneficial effects of the present invention: after outside smog enters housing, smog enters detection zone between light barrier, a part of light in detection zone light in detection zone after smog reflects weakens, and causes the signal weakening that optical fiber receives, and optical fiber notice external alert device is reported to the police, owing to the extraneous light entered in housing is kept off outside detection zone by light barrier, prevent the extraneous light interference to the smoke detector of labyrinth type Smoke Detection, improve sensitivity, decrease rate of false alarm；Upper casing is detachable with lower casing to be connected, it is simple to the installation of the substrate of enclosure interior, clamp device and light barrier, cleans and safeguards.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, and in order to the above and other purpose of the present invention, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, describe in detail as follows.
Accompanying drawing explanation
Fig. 1 is the upward view of lower casing in the present invention.
Fig. 2 is the top view of lower casing in the present invention.
Fig. 3 is the sectional view of lower casing in the present invention.
Fig. 4 is the left view of lower casing in the present invention.
Fig. 5 is the upward view of upper casing in the present invention.
Fig. 6 is the top view of upper casing in the present invention.
Fig. 7 is the sectional view of upper casing in the present invention.
Fig. 8 is the left view of upper casing in the present invention.
Fig. 9 is the schematic diagram of substrate in the present invention.
Figure 10 is the schematic diagram that in the present invention, base plate is installed with substrate.
Detailed description of the invention
It should be noted that when not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figures 1 to 10, a kind of smoke detector of labyrinth type Smoke Detection, including upper casing 20 and the lower casing 10 that removably connects with upper casing 20, upper casing 20 and lower casing 10 form a housing, a substrate 30 and the internally installed clamp device (unmarked in figure) having optical fiber it is fixed with in housing, the upper surface of substrate 30 is surrounded with light barrier 31, and between light barrier 31 and substrate 30, form detection zone 304, light barrier 31 includes the first baffle plate 311 and is the second baffle 312 of angle with the first baffle plate 311, and the internally installed clamp device having optical fiber is positioned at the surface of detection zone 304.
After outside smog enters housing, smog enters detection zone 304 between light barrier 31, a part of light in detection zone 304 light in detection zone 304 after smog reflects weakens, cause the signal weakening that optical fiber receives, optical fiber accepts to be converted to the signal of telecommunication after optical signal and by exterior light electric transducer, signal of telecommunication trigger external alarm device is reported to the police, owing to the extraneous light entered in housing is kept off outside detection zone 304 by light barrier 31, prevent the extraneous light interference to the smoke detector of labyrinth type Smoke Detection, improve sensitivity, decrease rate of false alarm, fibre diameter in the present invention is 2.0mm.
Specifically, as shown in Figures 1 to 4, lower casing 10 is circulus, and the base plate 104 of lower casing 10 is provided with air inlet 103, and air inlet 103 runs through lower casing 10, and air inlet 103 is around the surrounding of substrate 30, as shown in Figure 9.
As shown in Fig. 5 to Fig. 8, upper casing 20 is circulus, and upper casing 20 and lower casing 10 removably connect and form a housing, and housing is a cavity housing.Wherein, the draw-in groove 201 being formed around L-shaped of upper casing 20, the quantity of draw-in groove 201 is 1～4, and is evenly distributed on the surrounding of upper casing 20, and in the present embodiment, draw-in groove 201 quantity is 3, and lower casing 10 is provided with the buckle 101 corresponding with draw-in groove 201, as shown in Figure 2.The medial surface of upper casing 20 is additionally provided with the fixed claw 203 for fixing clamp device, and the quantity of fixed claw 203 is at least 2, and is evenly distributed on the medial surface of upper casing 20.The medial surface of upper casing 20 is additionally provided with the annulus 205 of projection, and the quantity of annulus 205 is at least one, and in the present invention, the quantity of annulus 205 is 2, and symmetrically distinguishes state.The surface of upper casing 20 is provided with the fixing hole 204 of the smoke detector for fixing labyrinth type Smoke Detection.The smoke detector of labyrinth type Smoke Detection is fixed on ceiling by fixing hole 204.
As it is shown in figure 9, light barrier 31 is uniformly arranged in the upper surface of substrate 30, and the angle of the first baffle plate 311 and second baffle 312 is 30 degree～120 degree.In the present embodiment, the angle of first gear 311 plate and second baffle 312 is 90 degree.As shown in Figure 5 and Figure 6, light barrier 31 and annulus 205 contact with each other, and form detection zone 304 between light barrier 31 and annulus 205.The center of substrate 30 is provided with hole 301, location, and lower casing 10 is provided with the positioning boss 102 corresponding with positioning hole 301, as shown in Figure 2.The upper surface of substrate 30 is additionally provided with claw 302, and the medial surface of upper casing 20 is provided with the screens hole 202 corresponding with claw 302, and annulus 205 is run through in screens hole 202.Substrate 30 is cooperated to fix with upper casing 20 be connected by claw 302 and screens hole 202.
As shown in Figure 10, outside smog and light enter housing in air inlet 103, and light is blocked in outside detection zone 304 by light barrier 31, it is prevented that the extraneous light interference to the smoke detector of labyrinth type Smoke Detection.Smog enters detection zone 304 from the gap between light barrier 31, light in detection zone 304 is by smog refraction some, making the signal weakening that optical fiber accepts, optical fiber accepts to be converted to the signal of telecommunication after optical signal and by exterior light electric transducer, and signal of telecommunication trigger external alarm device is reported to the police.
Being above the specific embodiment of the present invention, it is noted that for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. the smoke detector of a labyrinth type Smoke Detection, including upper casing and the lower casing that removably connects with upper casing, described upper casing and lower casing form a housing, it is characterized in that, being fixed with a substrate and the internally installed clamp device having optical fiber in described housing, the upper surface of described substrate is surrounded with light barrier, and forms detection zone between light barrier and substrate, described light barrier includes the first baffle plate and is the second baffle of angle with the first baffle plate, and the internally installed clamp device having optical fiber is positioned at the surface of detection zone.
2. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterised in that described light barrier is uniformly arranged in the upper surface of substrate, and the angle of the first baffle plate and second baffle is 30 degree～120 degree.
3. the smoke detector of labyrinth type Smoke Detection as claimed in claim 2, it is characterised in that the angle of described first baffle plate and second baffle is 90 degree.
4. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterised in that the draw-in groove being formed around L-shaped of described upper casing, described lower casing is provided with the buckle corresponding with draw-in groove.
5. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterised in that the center of described substrate is provided with hole, location, and described lower casing is provided with the positioning boss corresponding with positioning hole.
6. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterised in that the base plate of described lower casing is provided with air inlet, and described air inlet is around the surrounding of described substrate.
7. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterized in that, the upper surface of described substrate is additionally provided with claw, and the medial surface of described upper casing is provided with the screens hole corresponding with claw, and substrate is cooperated to fix with upper casing be connected by claw and screens hole.
8. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterised in that the medial surface of described upper casing is additionally provided with the fixed claw for fixing clamp device.
9. the smoke detector of labyrinth type Smoke Detection as claimed in claim 1, it is characterised in that the surface of described upper casing is provided with the fixing hole of the smoke detector for fixing labyrinth type Smoke Detection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209008.8A CN105741478A (en) | 2016-04-06 | 2016-04-06 | Labyrinth type smog detecting smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209008.8A CN105741478A (en) | 2016-04-06 | 2016-04-06 | Labyrinth type smog detecting smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105741478A true CN105741478A (en) | 2016-07-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610209008.8A Pending CN105741478A (en) | 2016-04-06 | 2016-04-06 | Labyrinth type smog detecting smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105741478A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109816924A (en) * | 2019-03-19 | 2019-05-28 | 安徽中熹安全科技有限公司 | A kind of correlation smoke sensor device |
| CN113936410A (en) * | 2021-12-06 | 2022-01-14 | 深圳市海曼科技股份有限公司 | Small labyrinth smoke sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020154018A1 (en) * | 2001-04-24 | 2002-10-24 | Matsushita Electic Works, Ltd. | Fire detector unit |
| CN2932519Y (en) * | 2006-03-08 | 2007-08-08 | 深圳威虎光电有限公司 | Smog alarm labyrinth |
| CN200996940Y (en) * | 2007-01-15 | 2007-12-26 | 张维国 | Smoke detecting chamber structure |
| CN202494631U (en) * | 2012-03-31 | 2012-10-17 | 武汉发博科技有限公司 | Optical smoke transducer |
| CN105354971A (en) * | 2015-11-12 | 2016-02-24 | 安徽中熹通讯科技有限责任公司 | Fiber smoke sensor |
-
2016
- 2016-04-06 CN CN201610209008.8A patent/CN105741478A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020154018A1 (en) * | 2001-04-24 | 2002-10-24 | Matsushita Electic Works, Ltd. | Fire detector unit |
| CN2932519Y (en) * | 2006-03-08 | 2007-08-08 | 深圳威虎光电有限公司 | Smog alarm labyrinth |
| CN200996940Y (en) * | 2007-01-15 | 2007-12-26 | 张维国 | Smoke detecting chamber structure |
| CN202494631U (en) * | 2012-03-31 | 2012-10-17 | 武汉发博科技有限公司 | Optical smoke transducer |
| CN105354971A (en) * | 2015-11-12 | 2016-02-24 | 安徽中熹通讯科技有限责任公司 | Fiber smoke sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109816924A (en) * | 2019-03-19 | 2019-05-28 | 安徽中熹安全科技有限公司 | A kind of correlation smoke sensor device |
| CN109816924B (en) * | 2019-03-19 | 2024-03-22 | 浙江东方职业技术学院 | Correlation formula smoke transducer |
| CN113936410A (en) * | 2021-12-06 | 2022-01-14 | 深圳市海曼科技股份有限公司 | Small labyrinth smoke sensor |
| CN113936410B (en) * | 2021-12-06 | 2023-04-18 | 深圳市海曼科技股份有限公司 | Small labyrinth smoke sensor |
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Application publication date: 20160706 |
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| RJ01 | Rejection of invention patent application after publication |