CN112562252B - Fire smoke detection alarm device - Google Patents
Fire smoke detection alarm device Download PDFInfo
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- CN112562252B CN112562252B CN202110190972.1A CN202110190972A CN112562252B CN 112562252 B CN112562252 B CN 112562252B CN 202110190972 A CN202110190972 A CN 202110190972A CN 112562252 B CN112562252 B CN 112562252B
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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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Abstract
The invention relates to the technical field of fire detection, in particular to a fire smoke detection alarm device, which comprises: the device comprises a first shell, a fixed element, a second shell, an air inlet pipe, a guide unit, a motor, an exhaust fan, a smoke sensor and an alarm; the smoke sensor is triggered by smoke to control the rotation of the exhaust fan, the flowing direction of smoke in the first shell and the second shell is changed, a small amount of smoke is extracted to enter the second shell in the process that the smoke flows along the air inlet pipe, then the smoke sensor is used for detecting the smoke, when the smoke amount is increased, the concentration of the smoke gathered in the second shell is increased along with the increase of the smoke amount, the sensor is triggered, an electric signal is sent out to control the alarm to give an alarm, when the smoke is reduced to disappear, the smoke sensor cannot be triggered within thirty minutes, and the motor is stopped.
Description
Technical Field
The invention relates to the technical field of fire detection, in particular to a fire smoke detection alarm device.
Background
People are in order to prevent the emergence of conflagration, can be at various conflagration smog detection alarm device of indoor installation, but traditional conflagration smog detection alarm device sensitivity is lower, the detection mode is smog (particulate matter) natural come-up along with the hot-air, thereby detect passively, and detection efficiency is low, and the more advanced conflagration smog detection alarm device now, getter device has been increased, thereby the smog of breathing in of initiative, it promotes to detect sensitivity and efficiency, but getter device need last rotatory, lead to power consumption big, can also cause certain degree noise pollution along with the rotation of getter device, simultaneously because the indoor smoke extraction and the oil smoke that cooks the production, can cause smoke alarm's wrong report police, lead to bringing inconvenience for daily life.
Disclosure of Invention
Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to determine whether smoke density is increased by two detections of one smoke sensor, so as to alarm, and the present invention achieves the above object by the following technical solutions:
a fire smoke detection alarm device comprises a first shell, a smoke sensor and an alarm; the first shell is cylindrical, and the bottom surface of the first shell is open; a first rectangular through hole is formed in the middle of the first shell, which is located on the vertical wall surface, and is arranged at equal intervals along the axis of the first shell, and a mounting plate is arranged at the lower end of the first shell; the mounting plate is horizontally arranged below the rectangular through holes, and a plurality of air outlets are formed in the center of the mounting plate; the top surface of the first shell is provided with a fixing element, and the first shell is fixed on the roof through the fixing element; a second shell is arranged inside the first shell; the second shell is provided with second rectangular through holes at equal intervals along the vertical wall surface, the number of the second rectangular through holes is the same as that of the first rectangular through holes, the second rectangular through holes are located above the first rectangular through holes, and a partition plate is arranged in the second shell and located above the second rectangular through holes; a plurality of air inlet pipes are arranged inside the first rectangular through holes of the first shell, and the number of the air inlet pipes is the same as that of the first rectangular through holes; the inner end of the air inlet pipe is close to the outer walls of the two shells; a guide unit is fixed on the outer wall of the second shell and is positioned below the second rectangular through hole; the top surface of the mounting plate is coaxially provided with a motor, the motor shaft extends downwards and penetrates through the mounting plate, the extending end of the motor shaft is connected with an exhaust fan, the exhaust fan is positioned in the first shell and is close to the open bottom surface of the lower end of the first shell, and a heat insulation layer is sleeved outside the motor; the smoke sensor is arranged in the second shell and is positioned below the second rectangular through hole; the alarm is arranged in the second shell and located between the partition board and the top surface of the first shell.
Preferably, the second shell is tubular, the upper end of the second shell is coaxially fixed with the top surface inside the first shell, a certain distance is reserved between the second shell and the first shell, and the space between the second shell and the first shell is larger than the space inside the second shell.
Preferably, the guide unit comprises a guide plate, a first baffle plate and a second baffle plate; the quantity of the guide plates is the same as that of the air inlet pipes, the guide plates are obliquely arranged, the inner ends of the guide plates, which are obliquely upwards, are fixed on the outer walls of the two shells, the outer ends of the guide plates, which are obliquely downwards, extend into the air inlet pipes respectively, the guide plates extend into one ends, close to the outer walls of the two shells, of the air inlet pipes, and the top surfaces of the extending ends of the guide plates are close to the top surfaces of the inner parts of the air inlet pipes; the first baffle plates are the same as the guide plates in number, are positioned above the guide plates and are staggered with the guide plates, and the end faces of two sides of one baffle plate and the end faces of two sides of the guide plates are on the same plane; the outer end of the baffle is fixed on the inner wall of the first shell, and the inner end of the baffle is fixed on the outer wall of the second shell; the second baffle plates are in a plurality, and the second baffle plates are connected with the first baffle plates and the end faces of the two side wings of the guide plate in a pairwise perpendicular mode.
Preferably, the smoke sensor controls the rotation time of the motor through a single chip microcomputer.
Preferably, the smoke sensor controls the alarm to give an alarm through an electric signal.
The invention has the beneficial effects that:
1. the smoke sensor is triggered by smoke to control the rotation of the exhaust fan, the flowing direction of smoke in the first shell and the second shell is changed, a small amount of smoke is extracted to enter the second shell in the process that the smoke flows along the air inlet pipe, then the smoke sensor is used for detecting the smoke, when the smoke amount is increased, the concentration of the smoke gathered in the second shell is increased along with the increase of the smoke amount, the sensor is triggered, an electric signal is sent out to control the alarm to give an alarm, when the smoke is reduced to disappear, the smoke sensor cannot be triggered within thirty minutes, and the motor is stopped.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural diagram of a guide unit according to the present invention.
FIG. 3 is a partial structural schematic diagram of the present invention.
Fig. 4 is a first schematic view of the smoke flow of the present invention.
Fig. 5 is a second schematic view of the smoke flow of the present invention.
As shown in fig. 1-5: 1. a first shell; 2. a fixing element; 3. a second shell; 4. an air inlet pipe; 5. a guide unit; 6. a motor; 7. an exhaust fan; 8. a smoke sensor; 9. an alarm; 11. a first rectangular through hole; 13. mounting a plate; 31. a second rectangular through hole; 32. a partition plate; 51. a guide plate; 52. a first baffle plate; 53. a second baffle plate; 61. an insulating layer.
Detailed Description
Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are easily implemented by those having ordinary skill in the art to which the present invention pertains, however, the present invention may be implemented in various forms, and thus, the present invention is not limited to the embodiments described below, and in addition, components not connected to the present invention will be omitted from the drawings for more clear description of the present invention.
As shown in fig. 1 and 2, a fire smoke detection alarm device includes: the device comprises a first shell 1, a fixed element 2, a second shell 3, an air inlet pipe 4, a guide unit 5, a motor 6, an exhaust fan 7, a smoke sensor 8 and an alarm 9;
the first shell 1 is cylindrical, the bottom surface of the first shell 1 is open, a plurality of first rectangular through holes 11 are formed in the middle of the first shell 1, which is located on a vertical wall surface, the plurality of first rectangular through holes 11 are arranged at equal intervals along the axis of the first shell 1, and a mounting plate 13 is arranged at the lower end of the inside of the first shell 1;
the mounting plate 13 is horizontally arranged below the first rectangular through holes 11, and a plurality of air outlets are formed in the center of the mounting plate 13;
the fixing element 2 is connected to the top surface of the first shell 1, and the first shell 1 is fixed on a roof through the fixing element 2;
the second shell 3 is tubular, the second shell 3 is arranged inside the first shell 1, specifically, the upper end of the second shell 3 is coaxially fixed with the top surface inside the first shell 1, a certain distance is reserved between the second shell 3 and the first shell 1, and the space between the second shell 3 and the first shell 1 is larger than the space inside the second shell 3;
rectangular through holes II 31 are equidistantly formed in the second shell 3 along the vertical wall surface, the number of the rectangular through holes II 31 is the same as that of the rectangular through holes I11, the rectangular through holes II 31 are located above the rectangular through holes I11, and a partition plate 32 is arranged in the second shell 3 and above the rectangular through holes II 31;
the number of the air inlet pipes 4 is the same as that of the rectangular through holes I11, the air inlet pipes 4 are respectively arranged on the rectangular through holes I11 of the shell I1, and the inner ends of the air inlet pipes 4 are close to the outer wall of the shell II 3;
the guide unit 5 is fixed on the outer wall of the second shell 3 and is positioned below the second rectangular through hole 31;
as shown in fig. 2, the guide unit 5 includes: a guide plate 51, a first shutter 52, and a second shutter 53;
the number of the guide plates 51 is the same as that of the air inlet pipe 4, the plurality of guide plates 51 are obliquely arranged, the obliquely upward inner ends of the plurality of guide plates 51 are fixed on the outer wall of the second shell 3, and the obliquely downward outer ends of the plurality of guide plates 51 respectively extend into the air inlet pipe 4, as shown in fig. 3, the guide plates 51 extend into one end, close to the outer wall of the second shell 3, of the air inlet pipe 4, and the top surfaces of the extending ends of the guide plates 51 are close to the top surface of the inner part of the air inlet pipe 4;
the number of the first baffle plates 52 is the same as that of the guide plate 51, the first baffle plates 52 are positioned above the guide plate 51 and are staggered with the guide plate 51, and the end surfaces of the two sides of the first baffle plates 52 and the end surfaces of the two sides of the guide plate 51 are on the same plane;
the outer end of the baffle plate I52 is fixed on the inner wall of the shell I1, and the inner end of the baffle plate I is fixed on the outer wall of the shell II 3;
the number of the second baffles 53 is multiple, the second baffles 53 are respectively connected with the first baffles 52 and the end faces of the two side wings of the guide plate 51 in a pairwise vertical manner, and the first baffles 52 and the second baffles 53 are used for blocking air from moving upwards;
the motor 6 is coaxially arranged on the top surface of the mounting plate 13, the shaft of the motor 6 extends downwards and penetrates through the mounting plate 13, the extending end of the shaft of the motor 6 is connected with an exhaust fan 7, the exhaust fan 7 is positioned in the first shell 1 and is close to the lower end open type bottom surface of the first shell 1, and a heat insulation layer 61 is sleeved outside the motor 6;
when the motor 6 drives the exhaust fan 7 to rotate through the shaft, the exhaust fan 7 extracts air from the first shell 1 and the second shell 3;
the smoke sensor 8 is arranged in the second shell 3 and is positioned below the second rectangular through hole 31;
the alarm 9 is arranged in the second shell 3 and is positioned between the partition plate 32 and the top surface of the first shell 1;
the smoke sensor 8 controls the motor 6 to rotate for a certain time (for example, thirty minutes) through a single chip microcomputer (not shown), and the smoke sensor 8 controls the alarm 9 to give an alarm through an electric signal.
The working principle of the invention is as follows:
as shown in fig. 4, smoke enters the first shell 1 and the second shell 3 upwards along the open surface of the first shell 1, the smoke triggers the smoke sensor 8, the smoke amount is the triggering value of the smoke sensor 8, the smoke sensor 8 is started by the single chip microcomputer control motor 6, then the exhaust fan 7 rotates, as shown in fig. 5, the exhaust fan 7 discharges air from inside to outside, so that the smoke in the second shell 3 is pumped out and discharged to the indoor, meanwhile, the space between the first shell 1 and the second shell 3 generates negative pressure, the smoke moves to the space between the first shell 1 and the second shell 3 along the plurality of air inlet pipes 4, in the process, as the density of particulate matters (namely smoke) is smaller than that of air, the particulate matters sink, so that the number of particulate matters above the air inlet pipes 4 is smaller than below, and the particulate matters below enter the space between the first shell 1 and the second shell 3 and then are discharged downwards along the exhaust fan 7, meanwhile, the particles above enter the space between the first shell 1 and the second shell 3 along the guide plate 51, then upwards enter the second shell 3 through the negative pressure at the second rectangular through holes 31, a small amount of particles are diffused in the second shell 3, the internal space of the second shell 3 is larger than the plurality of air inlet pipes 4, the density of the small amount of particles is further reduced, the density of the particles in the second shell 3 is far smaller than the trigger value of the smoke sensor 8, so that no alarm occurs, when the smoke concentration is increased, the particles in the air inlet pipes 4 are increased, although part of the particles sink in the moving process of the air inlet pipes 4, the number of the particles above is still large, after the particles enter the second shell 3 along the guide plate 51, the density of the particles is large, so as to trigger the smoke sensor 8, the mass smoke amount of the particles is far larger than the initial value, and the smoke sensor 8 sends an electric signal to control the alarm 9 to alarm, otherwise, the smoke is reduced to disappear, the smoke sensor 8 cannot be triggered within thirty minutes, the motor 6 stops, and after the smoke sensor 8 is triggered again, the motor 6 is started again.
Claims (5)
1. A fire smoke detection alarm device comprises a first shell (1), a smoke sensor (8) and an alarm (9); the method is characterized in that: the first shell (1) is cylindrical, and the bottom surface of the first shell (1) is open; a plurality of rectangular through holes I (11) are formed in the middle of the vertical wall surface of the shell I (1), the rectangular through holes I (11) are arranged at equal intervals along the axis of the shell I (1), and a mounting plate (13) is arranged at the lower end of the interior of the shell I (1); the mounting plate (13) is horizontally arranged below the first rectangular through holes (11), and a plurality of air outlets are formed in the center of the mounting plate (13); the top surface of the first shell (1) is provided with a fixing element (2), and the first shell (1) is fixed on a roof through the fixing element (2); a second shell (3) is arranged in the first shell (1); the second shell (3) is provided with second rectangular through holes (31) at equal intervals along the vertical wall surface, the number of the second rectangular through holes (31) is the same as that of the first rectangular through holes (11), the second rectangular through holes (31) are positioned above the first rectangular through holes (11), and partition plates (32) are arranged in the second shell (3) and above the second rectangular through holes (31); a plurality of air inlet pipes (4) are arranged inside the rectangular through holes I (11) of the shell I (1), and the number of the air inlet pipes (4) is the same as that of the rectangular through holes I (11); the inner end of the air inlet pipe (4) is close to the outer wall of the second shell (3); a guide unit (5) is fixed on the outer wall of the second shell (3), and the guide unit (5) is positioned below the second rectangular through hole (31); the top surface of the mounting plate (13) is coaxially provided with a motor (6), the motor (6) extends downwards in the axial direction and penetrates through the mounting plate (13), the extending end of the motor (6) is connected with an exhaust fan (7), the exhaust fan (7) is positioned in the shell I (1) and is close to the open bottom surface of the lower end of the shell I (1), and a heat insulation layer (61) is sleeved outside the motor (6); the smoke sensor (8) is arranged in the second shell (3) and is positioned below the second rectangular through hole (31); the alarm (9) is arranged in the second shell (3) and is positioned between the partition plate (32) and the top surface of the first shell (1).
2. A fire smoke detection alarm unit according to claim 1, wherein: the second shell (3) is tubular, the upper end of the second shell (3) is coaxially fixed with the inner top surface of the first shell (1), a certain distance is reserved between the second shell (3) and the first shell (1), and the space between the second shell (3) and the first shell (1) is larger than the inner space of the second shell (3).
3. A fire smoke detection alarm unit according to claim 1, wherein: the guide unit (5) comprises a guide plate (51), a first baffle plate (52) and a second baffle plate (53); the quantity of the guide plates (51) is the same as that of the air inlet pipes (4), the guide plates (51) are arranged in an inclined mode, the inner ends, inclined upwards, of the guide plates (51) are fixed to the outer wall of the second shell (3), the outer ends, inclined downwards, of the guide plates (51) extend into the air inlet pipes (4) respectively, the guide plates (51) extend into one ends, close to the outer wall of the second shell (3), of the air inlet pipes (4), and the top surfaces of the extending ends of the guide plates (51) are close to the top surface of the inner portion of the air inlet pipes (4); the number of the first baffle plates (52) is the same as that of the guide plates (51), the first baffle plates (52) are positioned above the guide plates (51) and are staggered with the guide plates (51), and the end surfaces of the two sides of the first baffle plates (52) and the end surfaces of the two sides of the guide plates (51) are on the same plane; the outer end of the baffle I (52) is fixed on the inner wall of the shell I (1), and the inner end of the baffle I is fixed on the outer wall of the shell II (3); the number of the baffle plates II (53) is multiple, and the baffle plates II (53) are connected with the wing end faces on two sides of the baffle plate I (52) and the guide plate (51) in a pairwise vertical mode respectively.
4. A fire smoke detection alarm unit according to claim 1, wherein: the smoke sensor (8) controls the rotation time of the motor (6) through the single chip microcomputer.
5. A fire smoke detection alarm unit according to claim 1, wherein: the smoke sensor (8) controls the alarm (9) to give an alarm through an electric signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190972.1A CN112562252B (en) | 2021-02-20 | 2021-02-20 | Fire smoke detection alarm device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110190972.1A CN112562252B (en) | 2021-02-20 | 2021-02-20 | Fire smoke detection alarm device |
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| Publication Number | Publication Date |
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| CN112562252A CN112562252A (en) | 2021-03-26 |
| CN112562252B true CN112562252B (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110190972.1A Active CN112562252B (en) | 2021-02-20 | 2021-02-20 | Fire smoke detection alarm device |
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| CN (1) | CN112562252B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113256930B (en) * | 2021-06-22 | 2022-02-15 | 济南本安科技发展有限公司 | Fire alarm and fire early warning water jet equipment |
| CN113436405B (en) * | 2021-07-13 | 2023-03-28 | 深圳市创景科技发展有限公司 | Fire alarm and fire extinguishing device |
| CN113570812A (en) * | 2021-07-22 | 2021-10-29 | 王沙利 | Computer lab environmental monitoring early warning system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5926098A (en) * | 1996-10-24 | 1999-07-20 | Pittway Corporation | Aspirated detector |
| US7170417B2 (en) * | 2003-02-20 | 2007-01-30 | Gregory Gamble | Decorative cover for smoke detectors and like devices |
| DE10319688B4 (en) * | 2003-05-02 | 2007-01-11 | Airbus Deutschland Gmbh | Device for the permanent monitoring of a smoke detector arranged in an aircraft |
| CN201788565U (en) * | 2010-07-06 | 2011-04-06 | 鼎盛特安全预警技术(北京)有限公司 | Smoke sensitive fire hazard detection alarm |
| CN209591036U (en) * | 2019-04-12 | 2019-11-05 | 深圳米林客智能科技有限公司 | A kind of smoke alarm |
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| CN112562252A (en) | 2021-03-26 |
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Effective date of registration: 20210907 Address after: 518000 12j, block a, Guanghao International Center, intersection of Meilong road and Zhongmei Road, Daling community, Minzhi street, Longhua District, Shenzhen, Guangdong Applicant after: Shenzhen zhongxiaoyun Intelligent Security Co.,Ltd. Address before: Room 610, Kechuang group (391 Tianyuan East Road), Jiangning District, Nanjing City, Jiangsu Province Applicant before: Nanjing Geshui Technology Co.,Ltd. |
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