CN205486627U - Small -size optic fibre smoke fire detector of modified - Google Patents
Small -size optic fibre smoke fire detector of modified Download PDFInfo
- Publication number
- CN205486627U CN205486627U CN201620055344.7U CN201620055344U CN205486627U CN 205486627 U CN205486627 U CN 205486627U CN 201620055344 U CN201620055344 U CN 201620055344U CN 205486627 U CN205486627 U CN 205486627U
- Authority
- CN
- China
- Prior art keywords
- shell body
- fire detector
- optic fibre
- inner housing
- smoke
- 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.)
- Expired - Fee Related
Links
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- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a small -size optic fibre smoke fire detector of modified, the shell body and the interior casing of being in the same place including the suit, the slope of interior casing are provided with reflection of light piece, the reflection of light of reflection of light piece face to the lateral wall of interior casing of one side on be provided with the cylindricality hole, the downthehole fixedly connected with optic fibre of cylindricality, the terminal surface of optic fibre be the plane, the bottom surface of interior casing be provided with with internal flue that is linked together of inner shell, the top of interior casing is provided with smoke discharge hole, the bottom surface of shell body is provided with first air vent, and the top surface of shell body is provided with the second air vent, and first air vent is linked together with the flue, and the second air vent is linked together with smoke discharge hole, reflection of light piece is 6~30 with the contained angle angle scope of optic fibre axis. The utility model discloses the not enough of prior art can be improved, smoke fire detector's miniaturization has been realized.
Description
Technical field
This utility model relates to fire hazard monitoring technical field, the miniature fiber sense of a kind of improvement
Pyrotechnics fire detector.
Background technology
Fire hazard monitoring is widely used in building and various kinds of equipment, for entering the fire occurred
The timely early warning of row, it is to avoid bigger personnel and property loss.Existing fire hazard monitoring probe is on the one hand
Owing to volume is big, cannot use in some installation site more narrow space；On the other hand,
Existing sense electronics smoke detector can produce spark after long-time use, if being in flammable gas
In body environment, it is possible to explode, there is secondary potential safety hazard.
Utility model content
The technical problems to be solved in the utility model is to provide the miniature fiber smoke of a kind of improvement
Detector, it is possible to solve the deficiencies in the prior art, it is achieved that the miniaturization of smoke fire detector.
For solving above-mentioned technical problem, technical solution adopted in the utility model is as follows.
A kind of miniature fiber smoke fire detector of improvement, including the shell body being set in together and
Inner housing, inner housing is tiltedly installed with reflecting piece, reflecting piece reflective surface towards the inner shell of side
Being provided with cylindrical hole on the sidewall of body, be fixedly connected with optical fiber in cylindrical hole, the end face of optical fiber is flat
Face, the bottom surface of inner housing is provided with and the flue being connected inside inner housing, and the top of inner housing sets
It is equipped with exhaust smoke hole；The bottom surface of shell body is provided with the first passage, and the end face of shell body is provided with
Two passages, the first passage is connected with flue, and the second passage is connected with exhaust smoke hole；Instead
Mating plate is 6 °～30 ° with the angle angular range of shaft axis of optic fibre.
As preferably, described optical fiber is adhesively fixed with cylindrical hole.
As preferably, a length of 6mm of described shell body, a width of 3.8mm, a height of 3.6mm.
What employing technique scheme was brought has the beneficial effects that: this utility model compact structure,
Easy for installation, by fiber-optic probe signal, owing to optical fiber corrosion resistance is strong, strong interference immunity, make
Obtain this utility model Electro Magnetic Compatibility strong, i.e. other equipment also will not be produced electromagnetic interference.Smog
Enter flue by the first passage, travel up to the inside of inner housing along flue.Optical fiber
Incident illumination is incident upon in reflecting piece, and by the reflection of reflecting piece, some light enters optical fiber and reversely passes
Broadcast.When smoke flow to space between optical fiber and reflecting piece, can be formed under one close thin
Form, light, under the scattering and refraction action of smog, can cause the reflective light intensity entered in optical fiber
The significant change of degree.When the variable quantity reflecting light reaches threshold value, detector sends warning.This reality
With the novel change by light, smog is found out, the body of detection agency can be reduced greatly
Long-pending.
Accompanying drawing explanation
Fig. 1 is the structure chart of inner housing in one detailed description of the invention of this utility model.
Fig. 2 is the structure chart of one detailed description of the invention China and foreign countries housing of this utility model.
In figure: 1, shell body；2, inner housing；3, reflecting piece；4, cylindrical hole；5, optical fiber；
6, flue；7, exhaust smoke hole；8, the first passage；9, the second passage.
Detailed description of the invention
The standardized element used in this utility model all can commercially, shaped piece according to
The record with accompanying drawing of description all can carry out customized, and the concrete connected mode of each part is all adopted
With bolt, rivet ripe in prior art, weld, the conventional means such as stickup, the most detailed at this
State.
With reference to Fig. 1-2, one detailed description of the invention of this utility model includes the shell body being set in together
1 and inner housing 2, inner housing 2 is tiltedly installed with reflecting piece 3, reflecting piece 3 reflective surface towards
It is provided with cylindrical hole 4 on the sidewall of the inner housing 2 of side, in cylindrical hole 4, is fixedly connected with optical fiber 5,
The end face of optical fiber 5 is plane, and the bottom surface of inner housing 2 is provided be connected with inner housing 2 internal
Flue 6, the top of inner housing 2 is provided with exhaust smoke hole 7；The bottom surface of shell body 1 is provided with first and leads to
Pore 8, the end face of shell body 1 is provided with the second passage 9, the first passage 8 and flue 6 phase
Connection, the second passage 9 is connected with exhaust smoke hole 7；Reflecting piece 3 and the angle of optical fiber 5 axis
It it is 35 °.Optical fiber 5 is adhesively fixed with cylindrical hole 4.A length of 6mm of shell body 1, a width of 3.8mm,
A height of 3.6mm, thus the smoke-box system of effective constitution the present embodiment.
The present embodiment compact structure, easy for installation, by fiber-optic probe signal, due to the anti-corruption of optical fiber
Erosion property is strong, strong interference immunity so that the present embodiment Electro Magnetic Compatibility is strong, i.e. to other equipment the most not
Electromagnetic interference can be produced.On the other hand, by the change of light, smog is found out, Ke Yiji
The big volume reducing detection agency.
Of the present utility model ultimate principle and principal character and this utility model have more than been shown and described
Advantage.Skilled person will appreciate that of the industry, this utility model is not limited by above-described embodiment
System, simply illustrates principle of the present utility model described in above-described embodiment and description, is not taking off
On the premise of this utility model spirit and scope, this utility model also has various changes and modifications,
In the range of these changes and improvements both fall within claimed this utility model.This utility model requirement
Protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. the miniature fiber smoke fire detector improved, it is characterised in that: include being sleeved on
Shell body (1) together and inner housing (2), inner housing (2) is tiltedly installed with reflecting piece (3),
Reflecting piece (3) reflective surface towards side inner housing (2) sidewall on be provided with cylindrical hole
(4), being fixedly connected with optical fiber (5) in cylindrical hole (4), the end face of optical fiber (5) is plane,
The bottom surface of inner housing (2) is provided with the flue (6) that be connected internal with inner housing (2), inner shell
The top of body (2) is provided with exhaust smoke hole (7)；The bottom surface of shell body (1) is provided with the first ventilation
Hole (8), the end face of shell body (1) is provided with the second passage (9), the first passage (8)
Being connected with flue (6), the second passage (9) is connected with exhaust smoke hole (7)；Reflecting piece (3)
It it is 6 °～30 ° with the angle angular range of optical fiber (5) axis.
The miniature fiber smoke fire detector of improvement the most according to claim 1, its feature
It is: described optical fiber (5) is adhesively fixed with cylindrical hole (4).
The miniature fiber smoke fire detector of improvement the most according to claim 1, its feature
It is: a length of 6mm of described shell body (1), a width of 3.8mm, a height of 3.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055344.7U CN205486627U (en) | 2016-01-21 | 2016-01-21 | Small -size optic fibre smoke fire detector of modified |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620055344.7U CN205486627U (en) | 2016-01-21 | 2016-01-21 | Small -size optic fibre smoke fire detector of modified |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205486627U true CN205486627U (en) | 2016-08-17 |
Family
ID=56638085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620055344.7U Expired - Fee Related CN205486627U (en) | 2016-01-21 | 2016-01-21 | Small -size optic fibre smoke fire detector of modified |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205486627U (en) |
-
2016
- 2016-01-21 CN CN201620055344.7U patent/CN205486627U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180121 |