CN215341337U - Optics labyrinth structure and smoke alarm - Google Patents
Optics labyrinth structure and smoke alarm Download PDFInfo
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- CN215341337U CN215341337U CN202120779613.5U CN202120779613U CN215341337U CN 215341337 U CN215341337 U CN 215341337U CN 202120779613 U CN202120779613 U CN 202120779613U CN 215341337 U CN215341337 U CN 215341337U
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- 239000000779 smoke Substances 0.000 title claims abstract description 42
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 abstract description 7
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract 2
- 239000002245 particle Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 230000004304 visual acuity Effects 0.000 description 1
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Abstract
The utility model discloses an optical labyrinth structure which comprises a bottom plate, wherein a labyrinth main body assembly is installed on the bottom plate, an installation groove is formed in the edge of the top surface of the bottom plate, an insect-proof net is sleeved on the labyrinth main body assembly, the bottom of the insect-proof net is installed in the installation groove, an upper labyrinth cover is fixed on the top of the labyrinth main body assembly, a support is arranged below the bottom plate, a transmitting and receiving assembly is arranged on the support, and the transmitting and receiving assembly penetrates upwards through the bottom plate and is inserted into the labyrinth main body assembly. The utility model has the advantages of high sensitivity, timely detection of black smoke and the like.
Description
Technical Field
The utility model belongs to the technical field of smoke alarms, and particularly relates to an optical labyrinth structure and a smoke alarm.
Background
Safety is a basic requirement for human survival and development, and at present, a fire caused by combustion which is out of control in time or space can not only cause casualties and property loss, but also bring about serious environmental pollution problems. The fire disaster becomes one of the most frequent and common main disasters which endanger public safety and social development, so that the fire disaster detection is timely and accurate, related personnel can be timely reminded to take measures, the occurrence probability of the fire disaster is reduced, and life safety and property loss are effectively reduced. Smoke alarms are widely used in buildings as a means of detecting fires and alarming.
The optical maze of traditional photoelectricity smoke alarm comprises an infrared transmitting tube, an infrared receiving tube and cavity, and the infrared receiving tube can't receive the light signal of infrared transmitting tube in smokeless state. When fire occurs, smoke enters the labyrinth cavity, infrared light emitted by the emitting tube is transmitted or scattered by smoke particles and received by the infrared receiving tube to generate light current, so that conversion from a smoke signal to a current signal is realized, and when the smoke signal exceeds an alarm value set by software, the detector can send out an alarm signal.
However, the optical labyrinth of the existing smoke detector generally comprises a single-channel infrared transmitting tube and an infrared receiving tube, and the smoke detector can judge smoke as long as tiny particles enter the optical labyrinth from the working principle.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides an optical labyrinth structure and a smoke alarm which are high in sensitivity and can detect black smoke in time.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an optics labyrinth structure, includes the bottom plate, installs maze main part subassembly on the bottom plate, and the mounting groove has been seted up at the top surface border of bottom plate, and maze main part subassembly cover is equipped with the bottom of fly net and installs in the mounting groove, is fixed with the maze upper cover on the top of maze main part subassembly, and the below of bottom plate is equipped with the support, is equipped with the transmission receiving assembly on the support, and the transmission receiving assembly upwards passes the bottom plate and inserts and establish in maze main part subassembly.
Preferably, the maze main part subassembly includes that anti-dazzling screen and a plurality of lead the tabula rase, anti-dazzling screen sets up and anti-dazzling screen sets up the top surface middle part at the bottom plate along vertical direction, a plurality of leads the border department of tabula rase irregular distribution at the top surface of bottom plate, the top surface left part of bottom plate is equipped with first cavity and second cavity respectively, first cavity is located the rear side of second cavity, the top surface right part of bottom plate is equipped with the third cavity, first cavity, the bottom surface of second cavity and third cavity is all uncovered and wears out the bottom plate downwards, anti-dazzling screen is located first cavity, between second cavity and the third cavity, first cavity is towards the side of anti-dazzling screen one side, the side of second cavity towards anti-dazzling screen one side and the side of third cavity towards anti-dazzling screen one side are all uncovered, the contained angle between first cavity and the second cavity is less than the contained angle between second cavity and the third cavity.
Preferably, the transmitting and receiving assembly comprises a main transmitting tube cavity, a receiving transmitting tube cavity and an auxiliary transmitting tube cavity, the main transmitting tube cavity and the third cavity are arranged in a vertically corresponding mode, the receiving transmitting tube cavity and the second cavity are arranged in a vertically corresponding mode, the auxiliary transmitting tube cavity and the first cavity are arranged in a vertically corresponding mode, the main transmitting tube cavity on the support is inserted into the third cavity from bottom to top, the receiving transmitting tube cavity is inserted into the second cavity from bottom to top, and the auxiliary transmitting tube cavity is inserted into the first cavity from bottom to top.
Preferably, an infrared transmitting tube is installed in the cavity of the main transmitting tube, an infrared receiving tube is installed in the cavity of the receiving transmitting tube, and an infrared transmitting tube, a blue light transmitting tube or a red light transmitting tube is installed in the cavity of the auxiliary transmitting tube.
Preferably, each of the plurality of smoke guiding sheets is provided with a positioning column at the top, a plurality of positioning holes are arranged on the labyrinth upper cover in a one-to-one correspondence manner, and the plurality of positioning holes and the plurality of positioning columns are equal in number and are fixed on the plurality of smoke guiding sheets through the positioning holes and the positioning columns.
The utility model also discloses a smoke alarm which comprises the optical labyrinth structure.
By adopting the technical scheme, the utility model has the following beneficial effects:
(1) the black smoke detector is provided with a main transmitting tube cavity and an auxiliary transmitting tube cavity, wherein an infrared transmitting tube is arranged in the main transmitting tube cavity, an infrared transmitting tube or a blue light transmitting tube or a red light transmitting tube is arranged in the auxiliary transmitting tube cavity, the main transmitting tube cavity is also provided with a receiving transmitting tube cavity, an infrared receiving tube is arranged in the receiving transmitting tube cavity, and the included angle between the first cavity and the second cavity is smaller than that between the second cavity and the third cavity, so that the included angle between the auxiliary transmitting tube cavity and the receiving transmitting tube cavity is smaller than that between the main transmitting tube cavity and the receiving transmitting tube cavity;
(2) the utility model is provided with the insect-proof net, which can prevent insects and the like from entering the interior of the utility model, thereby preventing the occurrence of false alarm;
in conclusion, the utility model has the advantages of high sensitivity, timely detection of black smoke and the like.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an exploded view of fig. 1.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention.
The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model.
All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the optical labyrinth structure of the utility model comprises a bottom plate 1, a labyrinth main body assembly is mounted on the bottom plate 1, a mounting groove is formed on the top surface edge of the bottom plate 1, an insect-proof net 2 is sleeved on the labyrinth main body assembly, the bottom of the insect-proof net 2 is mounted in the mounting groove, an upper labyrinth cover 13 is fixed on the top of the labyrinth main body assembly, a support 8 is arranged below the bottom plate 1, a transmitting and receiving assembly is arranged on the support 8, the support 8 is embedded into the bottom of the bottom plate 1 in actual mounting application, and the transmitting and receiving assembly penetrates through the bottom plate 1 upwards and is inserted into the labyrinth main body assembly.
The maze main body component comprises a light shading sheet 3 and a plurality of smoke guide sheets 4, the light shading sheet 3 can prevent an infrared transmitting tube in a main transmitting tube cavity 9 from directly irradiating an infrared receiving tube in a receiving transmitting tube cavity 10, an included angle between the infrared transmitting tube in the main transmitting tube cavity 9 and the infrared receiving tube in the receiving transmitting tube cavity 10 is different from an included angle between the infrared transmitting tube or a red light transmitting tube or a blue light transmitting tube in an auxiliary transmitting tube cavity 11 and the infrared receiving tube in the receiving transmitting tube cavity 10, and can carry out detection of a plurality of angles, for example, two infrared transmitting tubes with the diameter of 3mm and the peak wavelength of 940nm are used as a main transmitting light source and an auxiliary transmitting light source in the main transmitting tube cavity 9 and the auxiliary transmitting tube cavity 11, a photosensitive receiving tube with the diameter of 3mm and the wavelength of 940nm is used as a receiver, the smoke detection performance is stable in actual detection, the sensitivity is high, the anti-dazzling screen 3 sets up and the anti-dazzling screen 3 sets up the top surface middle part at bottom plate 1 along vertical direction, a plurality of leads the border department of cigarette piece 4 irregular distribution at the top surface of bottom plate 1, a plurality of leads the border department that cigarette piece 4 can also regular distribution at the top surface of bottom plate 1, the top surface left part of bottom plate 1 is equipped with first cavity 5 and second cavity 6 respectively, first cavity 5 is located the rear side of second cavity 6, the top surface right part of bottom plate 1 is equipped with third cavity 7, first cavity 5, the bottom surface of second cavity 6 and third cavity 7 is all uncovered and wears out bottom plate 1 downwards, anti-dazzling screen 3 is located first cavity 5, between second cavity 6 and the third cavity 7, the side of first cavity 5 towards anti-dazzling screen 3 one side, the side of second cavity 6 towards anti-dazzling screen 3 one side and the side of third cavity 7 towards anti-dazzling screen 3 are all uncovered, the angle between first cavity 5 and the second cavity 6 is less than the contained angle between second cavity 6 and the third cavity 7 The smoke guiding sheets 4 irregularly distributed on the edge of the top surface of the bottom plate 1 can form a plurality of smoke inlet channels, which is beneficial to the circulation of smoke.
The transmitting and receiving assembly comprises a main transmitting tube cavity 9, a receiving transmitting tube cavity 10 and an auxiliary transmitting tube cavity 11, the main transmitting tube cavity 9 corresponds to the third cavity 7 from top to bottom, the receiving transmitting tube cavity 10 corresponds to the second cavity 6 from top to bottom, the auxiliary transmitting tube cavity 11 corresponds to the first cavity 5 from top to bottom, the main transmitting tube cavity 9 on the support 8 is inserted into the third cavity 7 from bottom to top, the receiving transmitting tube cavity 10 is inserted into the second cavity 6 from bottom to top, and the auxiliary transmitting tube cavity 11 is inserted into the first cavity 5 from bottom to top.
The infrared transmitting tube is installed in the main transmitting tube cavity 9, the infrared receiving tube is installed in the receiving transmitting tube cavity 10, the infrared transmitting tube or the blue light transmitting tube or the red light transmitting tube is installed in the auxiliary transmitting tube cavity 11, the infrared transmitting tube, the infrared receiving tube, the blue light transmitting tube, the red light transmitting tube and other transmitting tubes are installed horizontally, the infrared transmitting tube in the main transmitting tube cavity 9 and the infrared transmitting tube or the blue light transmitting tube or the red light transmitting tube in the auxiliary transmitting tube cavity 11 can alternately transmit and detect, the detection sensitivity of black smoke is enhanced, the resolving power of different particles is enhanced, the anti-interference capability is improved, and the occurrence of false alarm condition is reduced.
Each top of each smoke guiding sheet 4 in the plurality of smoke guiding sheets 4 is provided with a positioning column 12, a plurality of positioning holes are formed in a labyrinth upper cover 13, the number of the positioning holes is equal to that of the positioning columns 12, the positioning columns 12 are arranged in a one-to-one correspondence mode, the labyrinth upper cover 13 is fixed to the smoke guiding sheets 4 through the positioning holes and the positioning columns 12, in the utility model, three smoke guiding sheets 4 are selected, the positioning columns 12 are arranged on the tops of the three smoke guiding sheets 4, the labyrinth upper cover 13 is provided with three positioning holes, and the three positioning columns 12 and the three positioning holes are arranged in a one-to-one correspondence mode.
The utility model also discloses a smoke alarm which comprises the optical labyrinth structure.
The specific using process of the utility model is as follows:
when the smoke alarm is used, the smoke alarm is installed in the smoke alarm for use, when a fire disaster occurs, black smoke and the like enter the smoke alarm, the infrared transmitting tube in the main transmitting tube cavity 9 and the infrared transmitting tube or the blue light transmitting tube or the red light transmitting tube in the auxiliary transmitting tube cavity 11 alternately transmit and detect, the infrared transmitting tube or the blue light transmitting tube or the red light transmitting tube reflects or scatters when encountering the black smoke and the like, and the infrared transmitting tube or the blue light transmitting tube is received by the infrared receiving tube in the receiving transmitting tube cavity 10 and generates light current, so that the conversion from smoke signals to current signals is realized, and when the smoke signals reach a set alarm value, an alarm is given.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.
Claims (6)
1. An optical maze structure characterized by: the labyrinth main body assembly is installed on the bottom plate, a mounting groove is formed in the top surface edge of the bottom plate, the bottom, provided with the insect-proof net and sleeved with the insect-proof net, of the labyrinth main body assembly is installed in the mounting groove, an upper labyrinth cover is fixed to the top of the labyrinth main body assembly, a support is arranged below the bottom plate, a transmitting and receiving assembly is arranged on the support, and the transmitting and receiving assembly upwards penetrates through the bottom plate and is inserted into the labyrinth main body assembly.
2. An optical maze structure as recited in claim 1, wherein: labyrinth main part subassembly leads the tabacco, the tabacco is led including anti-dazzling screen and a plurality of, anti-dazzling screen sets up and anti-dazzling screen sets up the top surface middle part at the bottom plate along vertical direction, a plurality of is led the border department of tabacco's surface of bottom plate, the top surface left part of bottom plate is equipped with first cavity and second cavity respectively, first cavity is located the rear side of second cavity, the top surface right part of bottom plate is equipped with the third cavity, first cavity, the bottom surface of second cavity and third cavity is all uncovered and is worn out the bottom plate downwards, anti-dazzling screen is located first cavity, between second cavity and the third cavity, the side of first cavity towards anti-dazzling screen one side, the side of second cavity towards anti-dazzling screen one side and the side of third cavity towards anti-dazzling screen one side are all uncovered, the contained angle between first cavity and the second cavity is less than the contained angle between second cavity and the third cavity.
3. An optical maze structure as recited in claim 2, wherein: the transmitting and receiving assembly comprises a main transmitting tube cavity, a receiving transmitting tube cavity and an auxiliary transmitting tube cavity, the main transmitting tube cavity and the third cavity are arranged in a vertically corresponding mode, the receiving transmitting tube cavity and the second cavity are arranged in a vertically corresponding mode, the auxiliary transmitting tube cavity and the first cavity are arranged in a vertically corresponding mode, the main transmitting tube cavity on the support is inserted into the third cavity from bottom to top, the receiving transmitting tube cavity is inserted into the second cavity from bottom to top, and the auxiliary transmitting tube cavity is inserted into the first cavity from bottom to top.
4. An optical maze structure as recited in claim 3, wherein: an infrared transmitting tube is installed in the main transmitting tube cavity, an infrared receiving tube is installed in the receiving transmitting tube cavity, and an infrared transmitting tube, a blue light transmitting tube or a red light transmitting tube is installed in the auxiliary transmitting tube cavity.
5. An optical maze structure as recited in claim 2, wherein: every in the plurality of leads the smoked sheet top all is equipped with the reference column, covers on the maze and has seted up a plurality of locating hole, and a plurality of locating hole and a plurality of reference column quantity are equal and the one-to-one sets up, and the maze upper cover is fixed on a plurality of leads the smoked sheet through locating hole and reference column.
6. A smoke alarm characterised by: comprising an optical maze structure according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120779613.5U CN215341337U (en) | 2021-04-15 | 2021-04-15 | Optics labyrinth structure and smoke alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120779613.5U CN215341337U (en) | 2021-04-15 | 2021-04-15 | Optics labyrinth structure and smoke alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215341337U true CN215341337U (en) | 2021-12-28 |
Family
ID=79594199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120779613.5U Active CN215341337U (en) | 2021-04-15 | 2021-04-15 | Optics labyrinth structure and smoke alarm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215341337U (en) |
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2021
- 2021-04-15 CN CN202120779613.5U patent/CN215341337U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 523000, Room 102, Building 10, No. 4 Xinzhu Road, Songshanhu Park, Dongguan City, Guangdong Province Patentee after: Anship Electronic Technology (Dongguan) Co.,Ltd. Address before: 523000 Room 401, building 10, XinZhuYuan, No.4, Xinzhu Road, Songshanhu high tech Industrial Development Zone, Dongguan City, Guangdong Province Patentee before: Anship Electronic Technology (Dongguan) Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |