CN109272701B - Fire detector with control - Google Patents
Fire detector with control Download PDFInfo
- Publication number
- CN109272701B CN109272701B CN201811262191.3A CN201811262191A CN109272701B CN 109272701 B CN109272701 B CN 109272701B CN 201811262191 A CN201811262191 A CN 201811262191A CN 109272701 B CN109272701 B CN 109272701B
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- main control
- control board
- camera
- shell
- base
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- 230000006698 induction Effects 0.000 claims abstract description 45
- 238000012544 monitoring process Methods 0.000 claims abstract description 27
- 239000000779 smoke Substances 0.000 claims abstract description 22
- 238000001514 detection method Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 13
- 210000001503 joint Anatomy 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 2
- 239000000523 sample Substances 0.000 description 9
- 238000012790 confirmation Methods 0.000 description 4
- 239000002360 explosive Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
- G08B17/125—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions by using a video camera to detect fire or smoke
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Fire Alarms (AREA)
- Fire-Detection Mechanisms (AREA)
- Alarm Systems (AREA)
Abstract
The invention belongs to the technical field of fire protection, and particularly relates to a fire detector with monitoring. The device comprises an induction detector, a camera, a main control board and a shell; the induction detector, the camera and the main control board are arranged in the shell, and the main control board is respectively connected with the induction detector and the camera; the main control board is also connected with the control terminal; after the induction detector senses smoke, temperature change or fire information, the camera is started, and the main control board transmits the induction information and the image information to the control terminal. The invention has simple structure and low cost, can judge the fire scene condition immediately and accurately, and gives timely rescue response.
Description
Technical Field
The invention belongs to the technical field of fire protection, in particular to a fire detector with monitoring.
Background
The alarm loop of the traditional fire detector is generally laid by adopting an embedded pipe (wired), is subjected to the conditions of settlement of construction, wall surface water seepage, secondary decoration and the like, and is easy to cause faults such as open circuit, short circuit, open circuit and the like of the alarm loop, so that the maintenance difficulty of the alarm loop is high, and the transformation cost is high.
According to the regulations of fire control room management and emergency procedure (five): "upon receipt of the fire alarm, the fire control room must immediately confirm in the fastest manner. The traditional confirmation mode is subject to the adverse factors of long distance of alarm points, difficulty in climbing of door locks and technical layers, increases on-site confirmation time and delays rescue opportunity.
After detecting fire information which may be caused by smoke feeling and the like, the conventional fire detection device generally sends information to a monitoring room and starts an alarm; but the fire source cannot be known accurately at the first time, and additional cameras nearby need to be called for viewing, and rescue can be delayed if the monitoring range of the cameras is not just in the building. If the camera is not installed, if false alarm is generated, the calling personnel confirms that the labor is wasted on site.
Disclosure of Invention
The invention aims to provide a fire detector with monitoring function, which has a simple structure and can detect the ignition point in real time.
The invention provides a fire disaster detector with monitoring, which comprises an induction detector 1, a camera 2, a main control board 3 and a shell 4;
the induction detector 1, the camera 2 and the main control board 3 are arranged in the shell 4, and the main control board 3 is respectively connected with the induction detector 1 and the camera 2; the main control board 3 is also connected with a control terminal.
In the invention, the shell 4 comprises a base 5, a middle shell 6 and a bottom shell 7 which are sequentially arranged from top to bottom, and the base 5 is arranged on a building ceiling;
the induction detector 1 is arranged in the bottom shell 7, and a plurality of detection holes are formed in the lower end (bottom) surface of the bottom shell 7, so that smoke and indoor light can be introduced; the camera 2 is arranged on the side wall of the middle shell 6; the main control board 3 is arranged in the base 5; the induction detector 1 and the camera 2 are connected with the main control board 3, and are driven by the main control board 3 and perform data transmission.
In the invention, a plurality of cameras 2 are arranged around the side wall of the middle shell 6 at equal intervals; the surroundings of the fire detector can be photographed.
In the invention, the camera 2 is provided with one, the middle shell 6 can horizontally rotate at 360 degrees through a rotating mechanism 8 to drive the camera 2 to horizontally rotate, thereby monitoring the surrounding environment of the fire detector; the rotating mechanism 8 is connected with the main control board 3 and is controlled and driven by the main control board 3.
In the invention, wherein:
the top surface of the base 5 is connected with the ceiling, and the bottom of the base is provided with an opening;
the top of the middle shell 6 is open, the bottom surface is closed, an opening 9 is arranged on the bottom surface, and a hollow rotating shaft column 10 is vertically upwards arranged in the middle shell 6 from the opening 9;
the top of the bottom shell 7 is opened, and a plurality of detection holes are formed in the bottom surface; the bottom surface is provided with a connecting rod 11 which can pass through the hollow part of the rotating shaft column 10 and is fixedly connected with the top surface of the base 5; a gap for connecting the induction detector 1 with the main control board 3 is reserved between the pivot post 10 and the top surface of the base 5;
the rotating shaft column 10 is provided with a rotating gear 12 which is fixed relative to the rotating shaft column, and the rotating gear 12 is rotationally connected with the rotating mechanism 8; the rotating mechanism 8 drives the rotating gear 12 to rotate and simultaneously drives the rotating shaft post 10 to rotate, namely the middle shell 6 to rotate;
the bottom opening of the base 5 is in butt joint with the top opening of the middle shell 6, and the bottom surface of the middle shell 6 is in butt joint with the top opening of the bottom shell 7; the bottom shell 7 is fixedly connected with the top surface of the base 5 through a connecting rod 11 and supports and holds the middle shell 6; the bottom surface of the middle shell 6 is simultaneously used as a smoke isolation plate, so that smoke entering the bottom shell 7 can be isolated from directly entering a cavity formed by butt joint of the base 5 and the middle shell 6, and the smoke is prevented from directly affecting components of the camera 2 and the main control board 3;
the connecting wire of the induction detector 1 passes through the hollow part of the rotating shaft column 10, enters the base 5 and is connected with the main control board 3; connecting wire of camera 2 is directly connected with the main control board 3.
In the invention, the rotating mechanism 8 comprises a rotating motor and a driving gear 13 connected with a rotating shaft of the rotating motor, and the driving gear 13 is connected with the rotating gear 12 in a meshed manner; thereby, the driving motor rotates to drive the rotation gear 12 to rotate.
In the present invention, the shaft post 10 has a wall thickness, and the rotary gear 12 is directly integrally formed by cutting a part of the side wall of the shaft post 10 with the wall thickness. For example, the rotary gear 12 is formed integrally with the rotary shaft column 10 by cutting out a circumferential tooth form from the tip portion of the rotary shaft column 10 by using a wall thickness.
In the invention, the cross section of the middle shell 6 is circular, and the diameter of the bottom is smaller than that of the top; the camera adopts wide-angle lens, and camera axial direction perpendicular to mesochite 6 lateral wall makes the camera slant downwards, guarantees to receive the visual field scope.
In the invention, the cross sections of the base 5 and the middle shell 6 are circular, the base 5 is provided with a circular side wall, and the outer edge of the circular upper end of the middle shell 6 is inserted into the base 5 and limited by the circular side wall of the base 5, so that the coaxiality of the circles of the cross sections of the base 5 and the middle shell 6 is ensured.
In the invention, a plurality of induction detectors 1 are provided, one of the induction detectors 1 is arranged in a shell 4, the other induction detectors 1 are arranged in a shooting range of a camera 2, and all the induction detectors 1 are in data connection with a main control board 3 and can receive and send detection information to the main control board 3. Therefore, the induction detection range is enlarged, the detection precision is enhanced, and the cost is reduced.
In the present invention, the sensing detector 1 includes a smoke sensing probe, a temperature sensing probe, and/or a light sensing probe.
In the invention, the main control board 3 is powered by a ceiling embedded line and is in data connection with a control terminal of a monitoring room of a building and the induction detector 1; or, the main control board 3 is provided with a wireless transceiver device which is connected with the control terminal of the monitoring room of the building and the induction detector 1 in a wireless way, and is connected with the mobile control terminal in a wireless way.
When the intelligent fire disaster monitoring system is used, when fire disaster smoke floats, the sensing detector senses smoke, temperature change or fire light information, trigger information is sent to the main control board, the main control board feeds information back to a control terminal or a mobile control terminal of a building monitoring room, meanwhile, a camera is started, an environment image is sent to a screen of the control room through the main control board, a control person can directly observe a fire point to judge whether the fire disaster is false report or not, and on-site confirmation of the calling person is not needed, so that labor cost and time are saved; if the signal is the false alarm of other interference, the terminal directly sends the signal to the main control board, and the camera and the alarm are closed; if the fire is not misreported, the information such as a photo and the like is directly sent to related personnel to inform the accurate position of the fire and the instant state information of the fire scene, such as the fire intensity, whether injured personnel exist or not, whether combustible and explosive goods exist or not, and the like, and corresponding rescue equipment is prepared for rescue at the first time according to the information.
The camera is not a special monitoring camera, and shooting is only activated according to the signal of the sensing detector, so that the camera specification does not need a monitoring level, and the power consumption and the loss can be saved when the camera is closed without fire, the service life is prolonged, and the cost is controlled. And is suitable for some places without monitoring cameras. The camera can adopt a plurality of to carry out full range coverage and look over, perhaps adopts a camera to cooperate 360 rotation structure to carry out full range coverage and look over.
The invention has simple structure and low cost, can judge the fire scene condition immediately and accurately, and gives timely rescue response.
Drawings
Fig. 1 is a schematic view of the external appearance of example 1.
Fig. 2 is a schematic view of the internal structure of the longitudinal section of example 2.
Fig. 3 is a schematic view of the shell in example 2.
Reference numerals in the drawings: 1 is an induction detector, 2 is a camera, 3 is a main control board, 4 is a shell, 5 is a base, 6 is a middle shell, 7 is a bottom shell, 8 is a rotating mechanism, 9 is an opening, 10 is a rotating shaft column, 11 is a connecting rod, 12 is a rotating gear, and 13 is a driving gear.
Detailed Description
Example 1
The invention comprises an induction detector 1, a camera 2, a main control board 3 and a shell 4.
The shell 4 is made of plastic and is divided into a base 5, a middle shell 6 and a bottom shell 7 which are sequentially arranged from top to bottom, and the base 5 is arranged on a building ceiling; the cross sections of the base 5, the middle shell 6 and the bottom shell 7 are all round.
The top surface of the base 5 is connected with the ceiling.
The diameter of the bottom of the middle shell 6 is smaller than that of the top, so that the side wall of the middle shell 6 forms an angle of 45 degrees; the camera 2 adopts a wide-angle lens, and the axial direction of the lens is vertical to the side wall of the middle shell 6, so that the camera is inclined downwards; the four cameras 2 are arranged on the side wall of the middle shell 6 in an equidistant surrounding mode, and the cameras adopt wide-angle lenses to form 360-degree full-range coverage display.
The bottom surface of the bottom shell 7 is provided with a plurality of detection holes for allowing smoke to enter, so that smoke and indoor light can be introduced; the induction detector 1 is disposed in the bottom case 7.
The main control board 3 is provided with a data processing control module such as an induction signal receiving module, a camera image receiving module, a motor control module and the like, a data receiving and transmitting module, a power supply module and the like; the main control board 3 is arranged in the top surface of the base 5; the induction detector 1 and the camera 2 are connected with the main control board 3, and are driven by the main control board 3 and perform data transmission; the main control board is connected with a line preset in the ceiling board through a line hole preset in the top surface of the base 5, is powered and can be connected with a control terminal of the monitoring room. As shown in fig. 1.
The sensing detector 1 comprises a smoke sensing probe, a temperature sensing probe and/or a light sensing probe.
The control terminal is a control terminal host arranged in a monitoring room of a building and is provided with a display and the like, and image information sent by a camera is received through a display screen.
Example 2
The invention comprises an induction detector 1, a camera 2, a main control board 3 and a shell 4.
The shell 4 is made of plastic and is divided into a base 5, a middle shell 6 and a bottom shell 7 which are sequentially arranged from top to bottom, and the base 5 is arranged on a building ceiling; the cross sections of the base 5, the middle shell 6 and the bottom shell 7 are all round.
The top surface of the base 5 is connected with the ceiling, and the bottom of the base is provided with an opening; main control board 3 is tiled fixedly to be established is placed under the inner top of the bottom shell 7.
The diameter of the bottom of the middle shell 6 is smaller than that of the top, so that the side wall of the middle shell 6 is at an angle of 45 degrees, the top is open, and the bottom surface is closed;
the camera 2 is provided with one wide-angle lens, and the axial direction of the lens is vertical to the side wall of the middle shell 6, so that the camera is inclined downwards, and the receiving visual field range is ensured; the connecting wire of the camera 2 is directly connected with the main control board 3, and is driven by the main control board 3 to carry out data transmission; the connecting wire ensures the length of the rotation winding of the camera 2.
An opening 9 is arranged on the bottom surface of the middle shell 6, and a hollow cylindrical rotating shaft column 10 is vertically upwards arranged in the middle shell 6 at the opening 9;
the shaft post 10 has a wall thickness, and a circumferential tooth form is cut out on the top side wall of the shaft post 10 by using the wall thickness to form a rotary gear 12 integrated with the shaft post 10. The structure can be manufactured through a die, and is formed by integrally demolding with the middle shell 6, so that the material and the production cost are saved, and the integral strength is ensured; as shown in fig. 3;
the rotating gear 12 is rotationally connected with the rotating mechanism 8; the rotating mechanism 8 comprises a rotating motor and a driving gear 13 connected with a rotating shaft of the rotating motor, the rotating motor is connected with the top surface of the base 5, the rotating shaft is vertically downward, the driving gear 13 is driven to horizontally reciprocate by 360 degrees, and the driving gear 13 is connected with the rotating gear 12 in a meshed manner; the rotary motor is connected with the main control board 3 and is controlled and driven by the main control board 3;
therefore, the driving motor rotates forward/reversely to drive the rotary gear 12 to rotate horizontally and reciprocally by 360 degrees, and simultaneously drive the middle shell 6 to rotate horizontally and reciprocally by 360 degrees, so that the camera 2 can monitor the surrounding environment of the fire detector.
The top of the bottom shell 7 is provided with an opening, and the bottom surface of the bottom shell is provided with a plurality of detection holes for allowing smoke to enter, so that smoke and indoor light can be introduced; the bottom surface is provided with a connecting rod 11 which can pass through the hollow part of the rotating shaft column 10 and is fixedly connected with the top surface of the base 5; a gap for connecting the induction detector 1 with the main control board 3 is reserved between the pivot post 10 and the top surface of the base 5; the induction detector 1 is arranged in the bottom shell 7 and above the detection hole; the connecting wire of the induction detector 1 passes through the hollow part of the pivot post 10, enters the base 5, is connected with the main control board 3, and is driven by the main control board 3 to carry out data transmission.
The bottom opening of the base 5 is in butt joint with the top opening of the middle shell 6, and the bottom surface of the middle shell 6 is in butt joint with the top opening of the bottom shell 7; the base 5 is provided with a circular side wall, and the outer edge of the circular upper end of the middle shell 6 is inserted into the base 5 and limited by the circular side wall of the base 5, so that the cross sections of the base 5 and the middle shell 6 are coaxial; the bottom shell 7 is fixedly connected with the top surface of the base 5 through a connecting rod 11 and supports and holds the middle shell 6; and the bottom surface of well shell 6 is as the smoke barrier simultaneously, can isolate the smog that gets into drain pan 7 and directly get into in the cavity that base 5 and well shell 6 butt joint formed, prevent smog to the components and parts such as camera 2 and main control board 3 produce the influence.
The main control board 3 is provided with a wireless receiving and transmitting module and is connected with a control terminal; the control terminals are divided into two types, namely a control terminal host computer which is arranged in a monitoring room of a building and is provided with a display and the like; one is a mobile terminal of a mobile phone; the image information sent by the camera can be received through the display and the mobile phone screen.
The sensing detector 1 comprises a smoke sensing probe, a temperature sensing probe and/or a light sensing probe.
Example 3
Based on the fire disaster detector of the embodiment 1 and the embodiment 2, the sensing detectors 1 are provided with a plurality of sensing detectors 1, one of the sensing detectors 1 is arranged in the shell 4, the sensing range of other sensing detectors 1 is arranged in the shooting range of the camera 2, all the sensing detectors 1 are in data connection with the main control board 3, and can receive and send detection information to the main control board 3.
The main control board 3 and other independent induction detectors 1 are powered through a ceiling or wall embedded line, and the main control board 3 is in data connection with a control terminal of a monitoring room of a building and other independent induction detectors 1; or, be equipped with wireless transceiver on the main control board 3, other independent response detector 1 are equipped with wireless transceiver module, and main control board 3 is wireless with building monitoring room control terminal and other independent response detector 1 are connected to through wireless can with mobile control terminal connection.
Because the coverage area of the camera 2 is wide, the detection range of the induction detector 1 is small, and one camera is provided with a plurality of induction detectors 1 at different positions, so that the induction detection range is enlarged, the detection precision is enhanced, and meanwhile, the cost is greatly reduced.
When the intelligent monitoring system is used, when fire smoke floats, the sensing detector detects fire information such as smoke and the like, the triggering information is sent to the main control board, the main control board feeds back the information to the control terminal or the mobile control terminal of the monitoring room of the building, meanwhile, the camera is started, the environment image is sent to the display or the mobile phone screen of the monitoring room through the main control board, a control person can directly observe the fire point to judge whether the fire is false, and the personnel on-site confirmation is not required to be invoked, so that the labor cost and time are saved.
If the signal is the false alarm of other interference, the monitoring personnel directly sends the signal to the main control board through the control terminal, and the camera and the alarm are closed;
if the fire is not misreported, the information such as a photo and the like is directly sent to related personnel to inform the accurate position of the fire and the instant state information of the fire scene, such as the fire intensity, whether injured personnel exist or not, whether combustible and explosive goods exist or not, and the like, and corresponding rescue equipment is prepared for rescue at the first time according to the information.
The camera is not a special monitoring camera, and shooting is only activated according to the signal of the sensing detector, so that the camera specification does not need a monitoring level, and the power consumption and the loss can be saved when the camera is closed without fire, the service life is prolonged, and the cost is controlled. And is suitable for some places without monitoring cameras.
The invention has simple structure and low cost, can judge the fire scene condition immediately and accurately, and gives timely rescue response.
Claims (5)
1. The fire disaster detector with the monitoring function is characterized by comprising an induction detector (1), a camera (2), a main control board (3) and a shell (4);
the induction detector (1), the camera (2) and the main control board (3) are arranged in the shell (4), and the main control board (3) is respectively connected with the induction detector (1) and the camera (2); the main control board (3) is also connected with a control terminal;
the shell (4) comprises a base (5), a middle shell (6) and a bottom shell (7) which are sequentially arranged from top to bottom, and the base (5) is arranged on a building ceiling;
the induction detector (1) is arranged in the bottom shell (7), and a plurality of detection holes are formed in the lower end face of the bottom shell (7) and can introduce smoke and indoor light; the camera (2) is arranged on the side wall of the middle shell (6); the main control board (3) is arranged in the base (5); the induction detector (1) and the camera (2) are connected with the main control board (3), and are driven by the main control board (3) and perform data transmission;
the camera (2) is provided with one, the middle shell (6) can horizontally rotate at 360 degrees through a rotating mechanism (8) to drive the camera (2) to horizontally rotate, so that the surrounding environment of the fire detector is monitored; the rotating mechanism (8) is connected with the main control board (3) and is controlled and driven by the main control board (3);
wherein:
the top surface of the base (5) is connected with the ceiling, and the bottom of the base is provided with an opening;
the top of the middle shell (6) is open, the bottom is closed, an opening (9) is arranged, and a hollow rotating shaft column (10) is vertically upwards arranged in the middle shell (6) from the opening (9);
the top of the bottom shell (7) is provided with an opening, and the bottom surface of the bottom shell is provided with a plurality of detection holes; the bottom surface is provided with a connecting rod (11) which can pass through the hollow part of the rotating shaft column (10) and is fixedly connected with the top surface of the base (5); a gap for connecting the induction detector (1) and the main control board (3) is reserved between the rotating shaft column (10) and the top surface of the base (5);
the rotating shaft column (10) is provided with a rotating gear (12) which is fixed relative to the rotating shaft column, and the rotating gear (12) is rotationally connected with the rotating mechanism (8); the rotating mechanism (8) drives the rotating gear (12) to rotate and simultaneously drives the rotating shaft column (10) to rotate, namely the middle shell (6) to rotate;
the bottom opening of the base (5) is in butt joint with the top opening of the middle shell (6), and the bottom surface of the middle shell (6) is in butt joint with the top opening of the bottom shell (7); the bottom shell (7) is fixedly connected with the top surface of the base (5) through a connecting rod (11), and supports and holds the middle shell (6); the bottom surface of the middle shell (6) is simultaneously used as a smoke isolation plate, so that smoke entering the bottom shell (7) can be isolated from directly entering a cavity formed by butt joint of the base (5) and the middle shell (6), and the smoke is prevented from directly affecting components of the camera (2) and the main control board (3);
the connecting wire of the induction detector (1) passes through the hollow part of the rotating shaft column (10) and enters the base (5) to be connected with the main control board (3); the connecting wire of the camera (2) is directly connected with the main control board (3);
the induction detectors (1) are provided with a plurality of induction detectors (1), one of the induction detectors (1) is arranged in the shell (4), other induction detectors (1) are arranged in a shooting range of the camera (2), all the induction detectors (1) are in data connection with the main control board (3), and detection information can be received and sent to the main control board (3).
2. A fire detector as claimed in claim 1, wherein the rotation mechanism (8) comprises a rotation motor and a drive gear (13) connected to the rotation shaft of the rotation motor, the drive gear (13) being in snap connection with the rotation gear (12); thereby, the driving motor rotates to drive the rotating gear (12) to rotate.
3. A fire detector as claimed in claim 2, characterized in that the shaft stud (10) has a wall thickness, and that the rotary gear (12) is formed directly integrally around the shaft stud (10) by wall thickness cutting on a partial side wall thereof.
4. A fire detector according to any one of claims 1 to 3, wherein the cross section of the middle shell (6) is circular, the bottom diameter being smaller than the top diameter; the camera adopts wide-angle lens, and camera axial direction perpendicular to mesochite (6) lateral wall makes the camera slant downwards, guarantees to receive the visual field scope.
5. The fire detector as claimed in claim 4, wherein the cross sections of the base (5) and the middle shell (6) are circular, the base (5) is provided with circular side walls, and the circular upper end outer edge of the middle shell (6) is inserted into the base (5) and limited by the circular side walls of the base (5) so as to ensure that the circles of the cross sections of the base (5) and the middle shell (6) are coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262191.3A CN109272701B (en) | 2018-10-27 | 2018-10-27 | Fire detector with control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811262191.3A CN109272701B (en) | 2018-10-27 | 2018-10-27 | Fire detector with control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109272701A CN109272701A (en) | 2019-01-25 |
| CN109272701B true CN109272701B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811262191.3A Active CN109272701B (en) | 2018-10-27 | 2018-10-27 | Fire detector with control |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113256932B (en) * | 2021-04-21 | 2022-09-09 | 上海一建安装工程有限公司 | Automatic fire alarm system |
| CN114129930B (en) * | 2021-09-05 | 2023-08-18 | 浙江万立宏科技有限公司 | Intelligent fire extinguishing preventing device for electric fire disaster |
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| KR101563655B1 (en) * | 2015-03-18 | 2015-10-27 | 주식회사 하나비젼씨스템즈 | Multi function fire detector |
| CN206991509U (en) * | 2017-08-09 | 2018-02-09 | 河北鹏润安防科技有限公司 | A kind of intelligent allelopathic cigarette device |
| CN108419042A (en) * | 2018-01-12 | 2018-08-17 | 孙向东 | Full dimension picture monitoring collection control system and intelligent monitor system |
| CN108286656A (en) * | 2018-01-24 | 2018-07-17 | 肖香福 | A kind of pipe detection device |
| CN208954288U (en) * | 2018-10-27 | 2019-06-07 | 上海国际机场股份有限公司 | A kind of fire detector with monitoring |
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| CN109272701A (en) | 2019-01-25 |
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