CN113436405A - Fire alarm and fire extinguishing device - Google Patents
Fire alarm and fire extinguishing device Download PDFInfo
- Publication number
- CN113436405A CN113436405A CN202110789948.XA CN202110789948A CN113436405A CN 113436405 A CN113436405 A CN 113436405A CN 202110789948 A CN202110789948 A CN 202110789948A CN 113436405 A CN113436405 A CN 113436405A
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- smoke
- pipeline
- shell
- alarm
- fire
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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
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/005—Delivery of fire-extinguishing material using nozzles
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/64—Pipe-line systems pressurised
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Fire-Detection Mechanisms (AREA)
- Fire Alarms (AREA)
Abstract
The invention relates to the technical field of fire detection, in particular to a fire alarm and fire extinguishing device, which comprises: the device comprises a shell, a smoke pipeline, a motor, a detection device, a pipeline, a water inlet pipe, an alarm and a spray head; the smoke sensor is controlled to move up and down through the forward rotation and the reverse rotation of the motor, and one smoke sensor is positioned at the upper end and the lower end of the smoke pipeline, so that smoke is detected for two times in a concentrated and diffused mode, the smoke sensor can detect according to the change of fire, the alarm accuracy of the smoke alarm is improved, and false alarm is prevented; and the water is pressurized by the airflow discharged from the smoke pipeline, so that the spraying area of the water is increased, and the indoor fire extinguishing efficiency is improved.
Description
Technical Field
The invention relates to the technical field of fire detection, in particular to a fire alarm and fire extinguishing device.
Background
Traditional fire detection device's detection mode is smog along with in the hot-air nature come-up gets into fire detection device, thereby carry out passive detection, and detection sensitivity is low, for improving detection sensitivity, getter device has been increased on original basis, thereby the suction smog of initiative, nevertheless because smoke is inhaled in the initiative, smog concentration can increase, thereby it is too sensitive to cause the smog alarm, lead to the wrong report police, inconvenience has been brought for daily life, its fire detection device should be surveyed according to the change of intensity of a fire, and the change of smog volume.
General conflagration detection device uses in indoor combination with fire control conflagration early warning spraying, when fire detection device detects smog, puts out a fire to indoor through fire control conflagration early warning spraying, but now has built many high-rise buildings, and high-rise building need supply water many times, and this can reduce water pressure to it is little to make the spray area of water, is unfavorable for fire control conflagration early warning spraying to put out a fire indoor.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a water jet device that detects a fire condition in a room according to a change in a fire, for example, determines whether smoke is increased by two detections by a smoke sensor, and gives an alarm, and increases a water jet area by pressurizing water by a suction airflow.
The fire alarm and fire extinguishing apparatus comprises: the smoke detector comprises a shell, a smoke pipeline, a detection device and an alarm; the improved smog spraying device is characterized in that a first opening is formed in the lower end of the vertical wall face of the shell, a second opening is formed in the upper end of the vertical wall face of the shell, a first slideway is arranged between the first opening and the second opening inside the shell, the first opening and the second opening are used for smog to flow in the shell, the number of the first slideways is two, the two first slideways are arranged oppositely, a motor, a pipeline and a water inlet pipe are arranged in the shell, and a sprayer is fixed outside the shell.
The smog pipeline sets up in the casing, smog pipeline upper end diameter is greater than the lower extreme, and smog pipeline middle part transition naturally, smog pipeline outer wall connection has the slider, and smog pipeline inner wall is equipped with the second slide, slider quantity is two, and two sliders are used for connecting the casing, are provided with the spring between slider and the first slide, second slide quantity is two, and two second slides set up perpendicularly in the smog pipeline, the length of second slide is greater than first slide.
The detection device is mounted on a shaft, the detection device comprising: the smoke sensor is installed on the nut and used for detecting smoke, the number of the limiting rods is two, one ends of the two limiting rods are fixed on the nut respectively, and the other ends of the two limiting rods are meshed into the second slide rail respectively.
The alarm is arranged at the upper end inside the shell.
Preferably, the motor passes through the connecting rod vertical fixation inside the casing, inside the perpendicular downwardly extending of axle of motor entered smoke pipeline, the flabellum is installed to the upper end of axle, the axle is located flabellum below department, and the both ends of axle are fixed with two baffles respectively, there is the determining deviation between two baffles, epaxial screw thread that is equipped with between two baffles, there is the determining deviation between both ends and two baffles about the screw thread.
Preferably, the outer diameter of the fan blade is smaller than the inner diameter of the upper end of the smoke pipeline.
Preferably, the pipeline is arranged in the shell and located below the smoke pipeline, the lower end of the pipeline is communicated with the bottom surface of the shell, and the diameter of the lower end of the pipeline is smaller than that of the upper end of the pipeline.
Preferably, the water inlet pipe penetrates through the shell and is inserted into the pipeline, wherein one end of the water inlet pipe, which is positioned at the pipeline, is bent downwards.
Preferably, the spray head is arranged on the lower end face of the shell, and the spray head and the axis of the pipeline are on the same straight line.
Preferably, the smoke sensor controls the motor to rotate through the single chip microcomputer, and the smoke sensor controls the alarm and the valve of the water inlet pipe through electric signals.
The invention has the beneficial effects that:
1. the smoke sensor is controlled to move up and down through the forward rotation and the reverse rotation of the motor, and one smoke sensor is positioned at the upper end and the lower end of the smoke pipeline, so that smoke is detected for two times in a concentrated and diffused mode, the smoke sensor can detect according to the change of fire, the alarm accuracy of the smoke alarm is improved, and false alarm is prevented;
2. the invention pressurizes water through the airflow discharged by the smoke pipeline, thereby increasing the spraying area of water and improving the indoor fire extinguishing efficiency.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a partial detailed structural schematic diagram of the present invention.
Fig. 3 is a schematic view of the shaft structure of the present invention.
FIG. 4 is a top view of a portion of the structure of the present invention.
Figure 5 is a schematic view of the downward flow of smoke in accordance with the present invention.
Figure 6 is a schematic view of the smoke flow upward according to the present invention.
FIG. 7 is a schematic view of the detection device and smoke duct of the present invention moving downward.
As shown in fig. 1-7:
1-shell, 11-first opening, 12-second opening, 13-first slideway, 2-smoke pipeline, 21-second slideway, 22-slide block, 23-spring, 3-motor, 31-fan blade, 32-shaft, 321-baffle, 322-first staying area, 323-second staying area, 4-detecting device, 41-nut, 42-smoke sensor, 43-limiting rod, 5-pipeline, 6-water inlet pipe, 7-alarm and 8-spray head.
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, a fire alarming and extinguishing apparatus includes: the device comprises a shell 1, a smoke pipeline 2, a motor 3, a detection device 4, a pipeline 5, a water inlet pipe 6, an alarm 7 and a spray head 8.
Casing 1 vertical fixation is on indoor ceiling, opening one 11 has been seted up to the lower extreme of the perpendicular wall of casing 1, opening two 12 has been seted up to the upper end of the perpendicular wall of casing 1, inside the casing 1, be located and be equipped with first slide 13 between opening one 11 and opening two 12.
The first opening 11 and the second opening 12 are used for smoke to flow in the shell 1.
The number of the first slide ways 13 is two, and the two first slide ways 13 are arranged oppositely.
The smoke pipeline 2 is arranged in the shell 1, the diameter of the upper end of the smoke pipeline 2 is larger than that of the lower end of the smoke pipeline, and the middle of the smoke pipeline 2 is in natural transition.
As shown in fig. 2, the outer wall of the smoke pipeline 2 is connected with a slide block 22, and the inner wall of the smoke pipeline 2 is provided with a second slide way 21.
The number of the sliding blocks 22 is two, one ends of the two sliding blocks 22 are respectively fixed on the vertical wall surfaces of the smoke pipelines 2, the other ends of the two sliding blocks 22 respectively extend into the two first slide ways 13 of the shell 1 horizontally, springs 23 are arranged between the two groups of sliding blocks 22 and the first slide ways 13, the two groups of sliding blocks 22 and the first slide ways 13 connect the smoke pipelines 2 into the shell 1, and the smoke pipelines 2 are enabled to move up and down in the shell 1 through the two groups of sliding blocks 22 and the first slide ways 13.
The number of the second slide ways 21 is two, the two second slide ways 21 are vertically arranged in the smoke pipeline 2, the lower end of each second slide way 21 is located at the position where the smoke pipeline 2 is contracted, the upper end of each second slide way 21 is parallel to the upper end face of the smoke pipeline 2, and the upper end and the lower end of each groove of each second slide way 21 are closed.
The second slideway 21 is longer than the first slideway 13.
The motor 3 is vertically fixed inside the shell 1 through a connecting rod and is positioned between the second opening 12 and the smoke pipeline 2, and a shaft 32 of the motor 3 vertically extends downwards into the smoke pipeline 2.
As shown in fig. 4, the outer diameter of the fan blade 31 is smaller than the inner diameter of the smoke duct 2, so that when the fan blade 31 rotates to generate an air flow, the air flow flows upwards along the lower end of the smoke duct 2, and the smoke is naturally expanded (i.e., coanda effect) by the inner wall of the smoke duct 2 during the upward flow and then is discharged along the smoke duct 2.
The detecting device 4 is mounted on a shaft 32, as shown in fig. 2, and the detecting device 4 includes: nut 41, smoke transducer 42, gag lever post 43, nut 41 sets up on axle 32, is located between two upper and lower baffles 321, smoke transducer 42 installs on nut 41 for survey smog (and microparticle), gag lever post 43 quantity is two, and two gag lever posts 43 one end are fixed respectively on nut 41, and the other end meshes respectively into in the second slide 21.
The pipeline 5 is arranged inside the shell 1 and located below the smoke pipeline 2, the lower end of the pipeline 5 is communicated with the bottom surface of the shell 1, and the diameter of the lower end of the pipeline 5 is smaller than that of the upper end of the pipeline.
The inlet tube 6 runs through the shell 1 and is inserted into the pipeline 5, wherein the inlet tube 6 is arranged at one end of the pipeline 5 and is bent downwards, and the inlet tube 6 is provided with a valve.
The alarm 7 is arranged at the upper end inside the shell 1.
The spray head 8 is arranged on the lower end face of the shell 1, and the spray head 8 and the axis of the pipeline 5 are on the same straight line.
The motor 3 continuously drives the fan blades 31 to rotate forward to actively suck indoor air flow, at the moment, the nut 41 is located in the first stopping area 322, the shaft 32 limits the upward movement of the nut 41 through threads, so that the nut 41 presses the second slide rail 21 downwards through the limiting rod 43, the lower end of the smoke pipeline 2 is inserted into the pipeline 5, meanwhile, the sliding block 22 compresses the spring 23, the smoke sensor 42 is close to the lower end of the smoke pipeline 2, and the state is a long-term detection state.
The working principle of the invention is as follows:
the motor 3 drives the fan blade 31 to rotate forward continuously, when smoke is generated indoors, the smoke is actively sucked through the fan blade 31, as shown in fig. 5, the smoke enters the smoke pipeline 2 from top to bottom along the second opening 12, the smoke is gradually gathered along the smoke pipeline 2, the gathered smoke passes through the smoke sensor 42, the smoke sensor 42 detects smoke concentration, the smoke concentration triggers the smoke sensor 42, the smoke amount is a triggering threshold value of the smoke sensor 42, at the moment, the motor 3 rotates in reverse direction, as shown in fig. 6, the screw thread of the shaft 32 does not limit the nut 41, the spring 23 pushes the smoke pipeline 2 upwards to move, so that the second slide rail 21 pushes the limiting rod 43 upwards, in the rotating process of the shaft 32, the screw thread of the shaft 32 is meshed with the nut 41, the nut 4 drives the smoke sensor 42 to move upwards, and as the length of the second slide rail 21 is larger than that of the first slide rail 13, the smoke pipeline 2 reaches the root of the upper end of the first slide rail 13 to stop, the smoke pipeline 2 is separated from the pipeline 5, the nut 4 continues to drive the smoke sensor 42 to ascend, when the nut 4 reaches the second stopping area 323, the nut 4 stops ascending, at the same time, the smoke sensor 42 is positioned at the upper end of the smoke pipeline 2, meanwhile, the fan blades 31 rotate reversely to change the airflow flowing direction, smoke flows from the lower end of the first opening 11 and the lower end of the second opening 5 to the lower end and the upper end, the size of the first opening 11 is set, the air inflow of the first opening 11, the air inflow of the second opening 12 and the air inflow of the second opening 12 are the same or smaller, the smoke enters the smoke pipeline 2, the smoke gradually diffuses when flowing from the lower end to the upper end, when the diffused smoke enters the smoke sensor 42, the smoke sensor 42 carries out secondary detection on the smoke, the smoke concentration is reduced due to the diffusion of the smoke, so that the smoke sensor 42 cannot be triggered, the smoke is reduced to disappear, and the smoke sensor 42 cannot be triggered within a certain time (for example, one minute), the motor 3 rotates forwards and returns to a long-term detection state;
when the smoke concentration is increased to trigger the smoke sensor 42, the smoke amount of the smoke sensor is far larger than the threshold value of the smoke sensor 42, the smoke sensor 42 sends an electric signal to control the alarm 7 to give an alarm, the motor 3 rotates forwards, the nut 41 is downwards meshed with the thread of the shaft 32 through gravity, the nut 41 drives the smoke sensor 42 to downwards move, as shown in fig. 7, in the process that the nut 41 downwards moves, the limiting rod 43 downwards presses the second slide rail 21, the lower end of the smoke pipeline 2 is inserted into the pipeline 5 again, the water inlet pipe 6 injects water into the pipeline 5, meanwhile, airflow flowing downwards along the smoke pipeline 2 enters the pipeline 5, the pressure of the water is increased, and when the water is sprayed indoors through the spray head 8, the spraying area is enlarged.
Claims (7)
1. A fire alarm and suppression device comprising: the smoke alarm device comprises a shell (1), a smoke pipeline (2), a detection device (4) and an alarm (7); the method is characterized in that: the lower end of the vertical wall surface of the shell (1) is provided with a first opening (11), the upper end of the vertical wall surface of the shell (1) is provided with a second opening (12), a first slide way (13) is arranged between the first opening (11) and the second opening (12) inside the shell (1), the first opening (11) and the second opening (12) are used for smoke to flow in the shell (1), the number of the first slide ways (13) is two, the two first slide ways (13) are oppositely arranged, a motor (3), a pipeline (5) and a water inlet pipe (6) are arranged in the shell (1), and a spray head (8) is fixed outside the shell (1);
the smoke pipeline (2) is arranged in the shell (1), the diameter of the upper end of the smoke pipeline (2) is larger than that of the lower end of the smoke pipeline, the middle of the smoke pipeline (2) is in natural transition, the outer wall of the smoke pipeline (2) is connected with two sliding blocks (22), the inner wall of the smoke pipeline (2) is provided with two second sliding ways (21), the two sliding blocks (22) are used for being connected with the shell (1), a spring (23) is arranged between each sliding block (22) and the corresponding first sliding way (13), the two second sliding ways (21) are two, the two second sliding ways (21) are vertically arranged in the smoke pipeline (2), and the length of each second sliding way (21) is larger than that of the corresponding first sliding way (13);
the detection device (4) is mounted on a shaft (32), the detection device (4) comprising: the smoke detector comprises a nut (41), smoke sensors (42) and limiting rods (43), wherein the nut (41) is arranged on a shaft (32) and located between an upper baffle plate and a lower baffle plate (321), the smoke sensors (42) are installed on the nut (41) and used for detecting smoke, the number of the limiting rods (43) is two, one ends of the two limiting rods (43) are respectively fixed on the nut (41), and the other ends of the two limiting rods (43) are respectively meshed into a second slide way (21);
the alarm (7) is arranged at the upper end inside the shell (1).
2. A fire alerting and extinguishing device as claimed in claim 1, wherein: motor (3) are inside through connecting rod vertical fixation at casing (1), inside axle (32) the perpendicular downwardly extending of motor (3) advances smog pipeline (2), flabellum (31) are installed to the upper end of axle (32), axle (32) are located flabellum (31) below department, and axle (32) both ends are fixed with two baffle (321) respectively, there is a determining deviation between two baffle (321), be equipped with the screw thread on axle (32) between two baffle (321), there is a determining deviation between both ends and two baffle (321) about the screw thread.
3. A fire alerting and extinguishing device as claimed in claim 2, wherein: the outer diameter of the fan blade (31) is smaller than the inner diameter of the upper end of the smoke pipeline (2).
4. A fire alerting and extinguishing device as claimed in claim 1, wherein: pipeline (5) set up inside casing (1), are located smog pipeline (2) below, and pipeline (5) lower extreme is linked together with casing (1) bottom, and wherein pipeline (5) lower extreme diameter is less than the upper end.
5. A fire alerting and extinguishing device as claimed in claim 1, wherein: the water inlet pipe (6) penetrates through the shell (1) and is inserted into the pipeline (5), wherein the water inlet pipe (6) is arranged at one end of the pipeline (5) and is bent downwards.
6. A fire alerting and extinguishing device as claimed in claim 1, wherein: the spray head (8) is arranged on the lower end face of the shell (1), and the spray head (8) and the axis of the pipeline (5) are on the same straight line.
7. A fire alerting and extinguishing device as claimed in claim 1, wherein: the smoke sensor (42) controls the reverse rotation time of the motor (3) through the single chip microcomputer, and the smoke sensor (42) controls the alarm (7) and a valve of the water inlet pipe (6) through electric signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789948.XA CN113436405B (en) | 2021-07-13 | 2021-07-13 | Fire alarm and fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110789948.XA CN113436405B (en) | 2021-07-13 | 2021-07-13 | Fire alarm and fire extinguishing device |
Publications (2)
| Publication Number | Publication Date |
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| CN113436405A true CN113436405A (en) | 2021-09-24 |
| CN113436405B CN113436405B (en) | 2023-03-28 |
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| CN202110789948.XA Active CN113436405B (en) | 2021-07-13 | 2021-07-13 | Fire alarm and fire extinguishing device |
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| Publication number | Publication date |
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| CN113436405B (en) | 2023-03-28 |
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