CN201965725U - Smoke inlet structure of photoelectric smoke detector - Google Patents
Smoke inlet structure of photoelectric smoke detector Download PDFInfo
- Publication number
- CN201965725U CN201965725U CN2011200226391U CN201120022639U CN201965725U CN 201965725 U CN201965725 U CN 201965725U CN 2011200226391 U CN2011200226391 U CN 2011200226391U CN 201120022639 U CN201120022639 U CN 201120022639U CN 201965725 U CN201965725 U CN 201965725U
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- Prior art keywords
- smoke
- shell
- hole
- holes
- horizontal direction
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- 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 - Lifetime
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- Fire-Detection Mechanisms (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The utility model discloses a smoke inlet structure of a photoelectric smoke detector, which is characterized in that the smoke inlet structure comprises a shell with the shape of a circular truncated-cone cover, a plurality of through holes are arranged on the inclined side surface of the shell, the through holes are perpendicular to a horizontal direction, the depth of each through hole is ranged from 1.1mm to 1.3mm and the diameter of each through hole is smaller than 1mm. Since the smoke inlet structure of the photoelectric smoke detector comprises the shell with the shape of the circular truncated-cone cover, and the through holes are arranged on the inclined side surface of the shell, are perpendicular to the horizontal direction and can ensure that the smoke in the horizontal direction can be vertically changed when the smoke enters the shell, the response speed of the smoke entering the shell is enabled to be quick and detection alarms can be conducted sensitively; moreover, the internal part of the shell has a better effect of resisting ambient light, insects are not apt to enter the shell; and in addition, the injection molding production of the through holes is simple, the production cost is low and the efficiency is high.
Description
Technical field
The utility model relates to a kind of fire fighting equipment, especially a kind of smoke detector advance the cigarette structure.
Background technology
Inside at optical detector of fire smoke, smoke particle enters in the sensitizing range of detector sensing system by cover body, so, enter smoke particle direction, speed and concentration in the sensing system, the sensitivity that the decision sensing is reported to the police, the direction of advancing smoke particle of existing labyrinth be directly to, enter the upper casing of detector when smoke particle after, returned by former road, smoke particle is not easy to enter the sensitizing range.Existing optical detector of fire smoke has end face to advance cigarette and side direction is advanced the cigarette dual mode, and which kind of mode all can not be taken into account the cigarette of horizontal direction and vertical direction simultaneously.So the angle and the speed that how to guarantee to enter the sensitizing range flue gas are the technical barriers that those skilled in the art need to be resolved hurrily.
The utility model content
In view of this, what the technical problems to be solved in the utility model was to provide a kind of optical detector of fire smoke advances the cigarette structure, and the flue gas response speed is fast, and the cigarette that guarantees horizontal direction has a vertical break-in when entering the labyrinth.
For solving the problems of the technologies described above, what the technical solution of the utility model was achieved in that a kind of optical detector of fire smoke advances the cigarette structure, comprises the hood-shaped housing of round platform, is arranged with a plurality of through holes on the prism of housing; This through hole is vertical with horizontal direction, and the degree of depth of this through hole is 1.1-1.3mm, and the diameter of this through hole is less than 1mm.
Further, described through hole is square hole or circular hole.
Further, the degree of depth of described through hole is 1.2mm.
Further, described through hole equidistantly is provided with along the circumferencial direction of prism.
The technique effect that the utility model reaches is as follows: the utility model optical detector of fire smoke advance the cigarette structure, comprise the hood-shaped housing of round platform, on the prism of housing, be arranged with a plurality of through holes; Through hole is vertical with horizontal direction to be offered, vertical break-in when this through hole guarantees that the cigarette of horizontal direction enters enclosure interior, and it is fast to make cigarette enter inner response speed, carries out sensing and reports to the police responsive.And enclosure interior opposing ambient light effects is better, and insect is difficult for entering inside.Also have, the through hole injection moulding is produced simple, and production cost is inefficient high.
Description of drawings
Fig. 1 advances the cigarette structural representation for the utility model optical detector of fire smoke;
Fig. 2 is the upward view of Fig. 1;
Fig. 3 is another angle synoptic diagram of Fig. 1.
Embodiment
As shown in Figure 1-Figure 3, for the utility model optical detector of fire smoke advance the cigarette structure, comprise the hood-shaped housing 1 of round platform, on the prism 12 of housing 1, be arranged with a plurality of through holes 11; This through hole 11 is vertical with horizontal direction, and the degree of depth in these logical 11 holes is 1.1-1.3mm, and the optimum depth of through hole 11 is 1.2mm.The diameter of through hole 11 is less than 1mm.Through hole 11 is square hole or circular hole, also can be other shapes, as long as through hole 11 is vertical with horizontal direction to begin, through hole 11 equidistantly is provided with along the circumferencial direction of prism, also can select other modes to arrange.
The utility model optical detector of fire smoke advance the cigarette structure, owing to be arranged with a plurality of through holes 11 on the prism 12 of housing 1, and through hole 11 is vertical with horizontal direction offers, and the cigarette of assurance horizontal direction enters, when entering housing 1 inside, reach the effect of vertical break-in through through hole 11.It is fast to have realized that smog enters the response speed of housing 1 inside, and sensing is reported to the police just very responsive.And the through hole 11 than other angles are provided with owing to the through hole 11 perpendicular to horizontal direction, makes the better effects if of housing 1 internal resistance surround lighting, and insect also is difficult for entering inside.Also have, the through hole injection moulding is produced simple, and production cost is inefficient high.
The above is preferred embodiment of the present utility model only, is not to be used to limit protection domain of the present utility model.
Claims (4)
- An optical detector of fire smoke advance the cigarette structure, be characterised in that, comprise the hood-shaped housing of round platform, on the prism of housing, be arranged with a plurality of through holes; This through hole is vertical with horizontal direction, and the degree of depth of this through hole is 1.1-1.3mm, and the diameter of this through hole is less than 1mm.
- Optical detector of fire smoke as claimed in claim 1 advance the cigarette structure, it is characterized in that described through hole is square hole or circular hole.
- Optical detector of fire smoke as claimed in claim 1 advance the cigarette structure, it is characterized in that the degree of depth of described through hole is 1.2mm.
- Optical detector of fire smoke as claimed in claim 1 advance the cigarette structure, it is characterized in that described through hole equidistantly is provided with along the circumferencial direction of prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200226391U CN201965725U (en) | 2011-01-20 | 2011-01-20 | Smoke inlet structure of photoelectric smoke detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200226391U CN201965725U (en) | 2011-01-20 | 2011-01-20 | Smoke inlet structure of photoelectric smoke detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201965725U true CN201965725U (en) | 2011-09-07 |
Family
ID=44528274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200226391U Expired - Lifetime CN201965725U (en) | 2011-01-20 | 2011-01-20 | Smoke inlet structure of photoelectric smoke detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201965725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074092A (en) * | 2011-01-20 | 2011-05-25 | 河北北大青鸟环宇消防设备有限公司 | Smoke inlet structure for photoelectric smoke detector |
| CN106710127A (en) * | 2017-01-25 | 2017-05-24 | 福建工程学院 | Independent type photoelectric smoke sensing fire alarm device and working method |
-
2011
- 2011-01-20 CN CN2011200226391U patent/CN201965725U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074092A (en) * | 2011-01-20 | 2011-05-25 | 河北北大青鸟环宇消防设备有限公司 | Smoke inlet structure for photoelectric smoke detector |
| CN106710127A (en) * | 2017-01-25 | 2017-05-24 | 福建工程学院 | Independent type photoelectric smoke sensing fire alarm device and working method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100871, A, building 207, Beida Jade Bird building, No. Fu Cheng Road, Beijing, China Patentee after: Beida Jade Bird Universal Fire Alarm Device Co., Ltd. Address before: 100871, A, building 207, Beida Jade Bird building, No. Fu Cheng Road, Beijing, China Patentee before: Hebei Beida Jade Bird Universal Fire Alarm Device Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110907 |
|
| CX01 | Expiry of patent term |