CN115631597A - Smoke sensitive fire alarm - Google Patents
Smoke sensitive fire alarm Download PDFInfo
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- CN115631597A CN115631597A CN202210285305.6A CN202210285305A CN115631597A CN 115631597 A CN115631597 A CN 115631597A CN 202210285305 A CN202210285305 A CN 202210285305A CN 115631597 A CN115631597 A CN 115631597A
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- pipe
- smoke
- metal spring
- memory metal
- motor
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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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B3/00—Audible signalling systems; Audible personal calling systems
- G08B3/10—Audible signalling systems; Audible personal calling systems using electric transmission; using electromagnetic transmission
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Electromagnetism (AREA)
- Fire-Detection Mechanisms (AREA)
Abstract
The invention relates to the technical field of fire detection, in particular to a smoke-sensitive type fire alarm, which comprises: the method comprises the following steps: the air conditioner comprises a shell, an installation part, an air inlet device, an air adjusting part, an adjusting plate, a first memory metal spring, a limiting part, a smoke sensor and a buzzer; according to the invention, the smoke sensor is matched with the first memory metal spring and the second memory metal spring, namely smoke and temperature change in a room are detected, so that whether a fire disaster occurs in the room or not is judged, and the accuracy of the fire alarm is improved.
Description
Technical Field
The invention relates to the technical field of fire detection, in particular to a smoke-sensitive type fire alarm.
Background
When a fire disaster occurs, due to the difference of indoor burning materials, the situation of big smoke and small smoke or small smoke and large fire can occur, the big smoke and small fire can be quickly detected by adopting a smoke-sensitive fire alarm, the small smoke and small fire needs to adopt a temperature-sensitive fire alarm, the smoke-sensitive fire alarm adopts a detection mode that smoke (particulate matters) naturally float upwards along with hot air and enter a fire detection device so as to detect the fire disaster, the sensitivity is high, when someone smokes smoke indoors, the smoke is large, the smoke-sensitive fire alarm can falsely alarm, inconvenience is brought to daily life of people, the temperature-sensitive fire alarm detects whether the fire disaster occurs indoors or not by changing the indoor temperature, the alarm temperature of the temperature-sensitive fire alarm is generally about fifty-seven degrees, although the accuracy of the temperature-sensitive fire alarm is high, the flame is burnt for a certain time during alarming, and the alarming is not timely.
In order to improve the performance of the fire alarm, the fire alarm should combine the advantages of the smoke sensitive type fire alarm and the temperature sensitive type fire alarm, i.e. high sensitivity and high accuracy.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to improve the performance of a fire alarm device by combining the advantages of a smoke-sensitive fire alarm device and a temperature-sensitive fire alarm device, and to achieve the above objects by the following technical means:
a smoke sensitive fire alarm comprising: the smoke alarm comprises a shell, a mounting part, an air inlet device, an air adjusting part, an adjusting plate, a first memory metal spring, a limiting part, a smoke sensor and a buzzer;
the mounting part is connected with the shell through threads;
the bottom surface of the shell is open, an opening is formed in a vertical wall surface at the lower end of the shell, a plurality of one-way valves are arranged on the vertical wall surface at the upper end of the shell, vertical sliding grooves I are respectively formed in the opposite inner wall surfaces of the shell, an air inlet pipeline is arranged at the lower end in the shell and is in a circular truncated cone shape, the large-diameter end of the air inlet pipeline is positioned below the air inlet pipeline, and a smoke sensor and a buzzer are arranged at the upper end in the shell;
the air intake device is installed inside the housing, the air intake device including: the air inlet pipe comprises an installation rod, a motor and fan blades, wherein the motor is installed in the shell by the installation rod, the motor is specifically positioned between the opening and the one-way valve, the shaft of the motor extends downwards into the air inlet pipe, and the fan blades are installed at the extending end of the shaft and positioned in the air inlet pipe;
the air conditioning part includes: the assembling device comprises an assembling ring, two push plates and two slideways, wherein a first circular through hole is formed in the center of the assembling ring, the outer wall of the assembling ring is attached to the inner wall of a shell, blocks are arranged on the outer wall of the assembling ring respectively, the two blocks are meshed into the first two sliding grooves of the shell, the push plates are inverted L-shaped, the number of the push plates is two, the two push plates are arranged oppositely, horizontal plates of the two push plates are arranged oppositely and extend to the axis of the first circular through hole, the number of the slideways is two, and the two slideways are arranged oppositely;
one end of the memory metal spring is attached to the lower end of the air inlet pipeline, and the other end of the memory metal spring supports the assembling ring;
a circular through hole II is formed in the center of the adjusting plate, a shaft of the motor penetrates through the circular through hole II of the adjusting plate, the diameter of the adjusting plate is larger than that of the circular through hole I of the assembling ring, sliding blocks are arranged on two sides of the adjusting plate respectively, and one ends of the two sliding blocks are meshed into the two sliding ways respectively;
the spacing portion includes: the pipe I, the limiting block, the pipe II and the memory metal spring II, the upper end of the pipe I is fixed on the installation rod, and the pipe I wraps the shaft, the relative wall surface of the pipe I inner wall is provided with the horizontal chute II, the elastic part is arranged inside the chute II, two vertical openings are formed in the two side wall surfaces which are included angles with the chute II, the number of the limiting blocks is two, the upper surface and the lower surface of the limiting block are slope surfaces which incline towards the middle part of the limiting block, the middle part of the two side wall surfaces of the limiting block is respectively provided with the sliding block II, the two ends of the sliding block are respectively meshed into the chute II, the pipe II is nested at the lower end of the pipe I, the shaft is wrapped, the diameter of the pipe II is larger than the circular through opening II of the adjusting plate, and the length of the pipe I is larger than the pipe II.
Preferably, the smoke sensor and the buzzer are arranged on the top surface in the shell, the smoke sensor is triggered once, the motor is controlled to drive the fan blades to rotate for a certain time through the single chip microcomputer, and after the smoke sensor is triggered again within the rotating time of the fan blades, the buzzer gives an alarm, namely the buzzer is electrified when the motor is started.
Preferably, a first conducting plate is installed on the bottom surface of the installation rod and connected with another single chip microcomputer, a second memory metal spring is arranged in the upper end of the first pipe, the deformation temperature of the second memory metal spring is fifty degrees, the deformation temperature of the first memory metal spring is forty degrees, a second conducting plate is arranged on the top surface of the assembly ring and opposite to the first conducting plate, a certain distance is reserved between the first initial conducting plate and the second conducting plate,
preferably, when the second electric sheet is attached to the first electric sheet, the two pairs of first electric sheets are electrified, the one pair of electric sheets releases a primary electric signal, the other singlechip controls the motor to drive the fan blade to rotate for a certain time and then does not rotate, and the second electric sheet is continuously attached to the first electric sheet and does not send an electric signal to the other singlechip.
The invention has the beneficial effects that:
according to the invention, the smoke sensor is matched with the first memory metal spring and the second memory metal spring, so that indoor smoke and temperature change are detected, whether an indoor fire occurs or not is judged, and the accuracy of the fire alarm is improved.
The memory metal spring I is suitable for fire types with small smoke fire or large smoke fire, the deformation temperature of the memory metal spring I is forty ℃, and the deformation temperature of the memory metal spring II is fifty ℃, and is lower than the alarm temperature of the existing temperature-sensitive fire alarm, so that the sensitivity of the fire alarm is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention.
FIG. 2 is a schematic view of the internal structure of the present invention.
FIG. 3 is an exploded view of the present invention.
Fig. 4 is a schematic view of a half structure of the housing of the present invention.
FIG. 5 is a schematic view of a limiting portion of the present invention
FIG. 6 is a first diagram illustrating the upward movement of the first air adjustment portion and the adjustment plate according to the present invention.
FIG. 7 is a schematic view of the upward movement of the air regulating portion according to the present invention.
FIG. 8 is a schematic diagram of the upward movement of the first air regulating part and the second air regulating plate according to the present invention.
FIG. 9 is a schematic view of the downward movement of the adjusting plate according to the present invention.
The air inlet device comprises a shell 1, an opening 11, a check valve 12, a sliding chute I13, an air inlet pipeline 14, an installation part 2, an air inlet device 3, an installation rod 31, a conducting strip I311, a motor 32, a shaft 321, fan blades 33, a gas adjusting part I4, an assembly ring 41, an air inlet 411, a slide 43, a conducting strip II 44, an adjusting plate 5, a circular through opening 511, a sliding block I52, a memory metal spring I6, a limiting part 7, a pipe I71, a sliding track II 711, a limiting block 72, a sliding block II 721, a pipe II 73, a memory metal spring II 74, a smoke sensor 8 and a buzzer 9.
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.
The first embodiment:
as shown in fig. 1-2, a smoke sensitive fire alarm includes: the air conditioner comprises a shell 1, a mounting part 2, an air inlet device 3, an air adjusting part 4, an adjusting plate 5, a first memory metal spring 6, a limiting part 7, a smoke sensor 8 and a buzzer 9;
the mounting part 2 is mounted on an indoor ceiling through a screw, and the upper end of the shell 1 is connected with the mounting part 2 through threads;
as shown in fig. 4, the bottom surface of the casing 1 is open, an opening 11 is formed in a vertical wall surface at the lower end of the casing 1, a plurality of check valves 12 are arranged on the vertical wall surface at the upper end of the casing 1, vertical sliding grooves 13 are respectively formed in the casing 1 relative to the inner wall surface, an air inlet pipe 14 is installed at the lower end inside the casing 1, the air inlet pipe 14 is in a circular truncated cone shape, and the large-diameter end of the air inlet pipe 14 is located below;
a smoke sensor 8 and a buzzer 9 are arranged at the upper end inside the shell 1;
as shown in fig. 2 to 3, the air intake device 3 is installed inside the housing 1, and the air intake device 3 includes: the air inlet valve comprises a mounting rod 31, a motor 32 and fan blades 33, wherein the motor 32 is mounted in the shell 1 by the mounting rod 31, the motor 32 is specifically positioned between the opening 11 and the one-way valve 12, a shaft 321 of the motor 32 extends downwards into the air inlet pipeline 14, and the fan blades 33 are mounted at the extending end of the shaft 321 and positioned in the air inlet pipeline 14;
when the smoke sensor 8 detects primary smoke, the motor 32 is controlled by a single chip microcomputer (not shown in the figure) to drive the fan blades 33 to rotate for a certain time, so that airflow enters the shell 1 along the air inlet pipeline 14, and is compressed and accelerated when the airflow flows out along the small-diameter end of the air inlet pipeline 14 in the process that the airflow flows upwards along the air inlet pipeline 14;
the air regulating part 4 is located in the housing 1, the air regulating part 4 is initially located at the lower end of the opening 11, and the air regulating part 4 comprises: the assembling device comprises an assembling ring 41, push plates 42 and slideways 43, wherein a circular through hole I411 is formed in the center of the assembling ring 41, the outer wall of the assembling ring 41 is attached to the inner wall of the shell 1, blocks are respectively arranged on the opposite outer walls of the assembling ring 41, the two blocks are meshed into the two sliding grooves I13 of the shell 1, the assembling ring 41 can slide up and down along the sliding grooves I13, the push plates 42 are inverted L-shaped, the number of the push plates 42 is two, the two push plates 42 are oppositely arranged, the horizontal plates of the two push plates 42 are oppositely arranged and extend to the axle center of the circular through hole I411, the number of the slideways 43 is two, the two slideways 43 are oppositely arranged and are respectively and vertically arranged at the edge of the bottom surface of the assembling ring 41;
one end of the first memory metal spring 6 is attached to the lower end of the air inlet pipeline 14, and the other end of the first memory metal spring supports the assembling ring 41;
a second circular through hole 51 is formed in the center of the adjusting plate 5, a shaft 321 of the motor 32 penetrates through the second circular through hole 51 of the adjusting plate 5, the diameter of the adjusting plate 5 is larger than that of a first circular through hole 411 of the assembling ring 41, the adjusting plate 5 is located below the assembling ring 41, the lower end of the adjusting plate 5 is supported by the upper end of the air inlet pipeline 14, the adjusting plate 5 and the assembling ring 41 are attached to each other in an initial state, sliding blocks 52 are arranged on two sides of the adjusting plate 5 respectively, and one ends of the two sliding blocks 52 are meshed into the two sliding ways 43 respectively;
as shown in fig. 5, the stopper 7 includes: the upper end of the first pipe 71 is fixed at the center of the mounting rod 31, the first pipe 71 wraps the shaft 321 of the motor 32, the first pipe 71 is a rectangular pipeline, the opposite wall surfaces of the inner wall of the first pipe 71 are provided with a second horizontal sliding groove 711, an elastic part (not shown in the drawing) is arranged inside the second sliding groove 711, two vertical openings are formed in the two side wall surfaces forming an included angle with the second sliding groove 711, the two limiting blocks 72 are hollow, the number of the two limiting blocks is two, the upper surface and the lower surface of the limiting block 72 are slopes inclining towards the middle of the limiting block 72, the middle parts of the two side wall surfaces of the limiting block 72 are respectively provided with a second sliding block 721, one ends of the two sliding blocks 721 are respectively engaged into the second sliding groove 711, the two limiting blocks 72 are mounted on the two vertical openings of the first pipe 71 through the second sliding blocks 721, the elastic part abuts against the second sliding blocks 721, the limiting blocks 72 are hollow, the elastic part is used for abutting against the end parts of the two sliding grooves 711, the lower end parts of the first pipe 73, the second pipe 71 wraps the lower end of the first pipe 73, the second telescopic pipe 73, the diameter of the second telescopic pipe 321 is larger than the diameter of the pipe 73, and the diameter of the first telescopic pipe 73 is larger than that the second telescopic pipe 71 is larger than that the diameter of the first telescopic pipe 73;
the air flow generated by the rotation of the fan blades 33 is discharged along the air inlet pipeline 14, the pressure of the air flow pushes the adjusting plate 5 to ascend along the shaft 321, the adjusting plate 5 abuts against the assembling ring 41 and pushes the assembling ring 41 to ascend above the opening 11, the air flow is discharged along the opening 11, the push plate 42 abuts against the limit blocks 72 in the ascending process of the assembling ring 41, the two limit blocks 72 move towards the shaft center of the first pipe 71, so that the lower ends of the two limit blocks 72 are attached to the top surface of the second pipe 73, the second pipe 73 is limited, the second pipe 73 blocks the ascending adjusting plate 5, and the air adjusting part 4 and the adjusting plate 5 seal the space above the shell 1;
the smoke sensor 6 and the buzzer 7 are arranged on the top surface in the shell 1, the smoke sensor 6 is triggered once, the motor is controlled to drive the fan blades to rotate for a certain time through the single chip microcomputer, and after the smoke sensor 6 is triggered again within the rotating time of the fan blades 33, the buzzer 7 gives an alarm, namely the buzzer 7 is electrified when the motor 32 is started;
the working principle of the invention is as follows:
when smoke is generated indoors and enters the shell 1 along the opening 11, the smoke triggers the smoke sensor 6, the motor 32 is controlled by the single chip microcomputer to drive the fan blades 33 to rotate for a certain time, as shown in fig. 6, air flow generated by rotation of the fan blades 33 is ejected along the air inlet pipeline 14, the air flow pushes the adjusting plate 5 to ascend along the shaft 321, the adjusting plate 5 pushes the assembling ring 41 to ascend, the push plate 42 abuts against the limiting blocks 72 in the ascending process of the assembling ring 41, the two limiting blocks 72 move towards the axis of the first pipe 71, so that the lower ends of the two limiting blocks 72 are attached to the top surface of the second pipe 73 to limit the second pipe 73, the second pipe 73 blocks the ascending adjusting plate 5, the air adjusting part 4, the adjusting plate 5 and the one-way valve 12 seal the space above the shell 1, namely seal the smoke sensor 6, and smoke in the shell 1 is exhausted along the plurality of one-way valves 12, for example, if there is smoke or no fire in the room (if there is smoke in the room), the motor 32 drives the fan blade 33 to rotate for a certain time, and then the smoke sensor 6 cannot be triggered again, so as to determine that there is no fire in the room, and for example, if there is fire in the room, the fan blade 33 actively sucks smoke and hot air, and the smoke and the hot air heat the memory metal spring 6, as shown in fig. 7, the memory metal spring 6 deforms and stretches, the upper end of the memory metal spring 6 pushes the assembly ring 41 upward to further rise, the adjusting plate 5 is separated from the assembly ring 41, and in the process of the rise of the assembly ring 41, part of the smoke enters the upper space of the housing 1 along the circular through opening 411 of the assembly ring 41, and triggers the smoke sensor 6 again, and the buzzer 7 gives an alarm to determine that there is fire in the room, so as to improve the accuracy of the fire alarm.
Second embodiment:
the bottom surface of the mounting rod 31 is provided with a first conducting strip 311, the first conducting strip 311 is connected with another single chip microcomputer (not shown), a second memory metal spring 74 is arranged in the upper end of the first pipe 71, the deformation temperature of the second memory metal spring 74 is fifty degrees, and the deformation temperature of the first memory metal spring 6 is forty degrees;
the top surface of the assembly ring 41 is provided with a second conducting plate 44, the second conducting plate 44 is opposite to the first conducting plate 311, the initial second conducting plate 44 has a certain distance with the first conducting plate 311, when the second conducting plate 412 is attached to the first conducting plate 311, the second conducting plate 412 energizes the first conducting plate 311, the first conducting plate 311 releases a primary electric signal to the other single chip microcomputer, and the other single chip microcomputer controls the motor 32 to drive the fan blade 33 to rotate for a certain time;
after the temperature sensor 6 triggers the smoke sensor 6 within the rotation time of the fan blade 33, the buzzer 7 gives an alarm, namely the buzzer 7 is electrified when the motor 32 is started.
The working principle of the invention is as follows:
when a fire with big fire and small smoke occurs indoors, as shown in fig. 8, the memory metal spring I6 is deformed and extends, the upper end of the memory metal spring I6 pushes the assembly ring 41 upwards, the assembly ring 41 drives the adjusting plate 5 to ascend through the slide rail 43 until the memory metal spring I6 extends to the maximum extent, the push plate 42 is positioned above the limiting block 72 at the moment and resets through the elastic part limiting block 72, meanwhile, the conducting plate II 44 is attached to the conducting plate I311, the other singlechip control motor 32 drives the fan blade 33 to rotate for a certain time, the air flow generated by the fan blade 33 pushes the adjusting plate 5 to ascend quickly, the adjusting plate 5 abuts against the pipe II 73 and drives the pipe II 73 to ascend, the adjusting plate 5 abuts against the assembly ring 41 to seal the space above the shell 1, and the upper end of the pipe II 73 is positioned above the limiting block 72 and abuts against the memory metal spring II 36, because smoke is less, the distance between the assembling ring 41 and the adjusting plate 5 is short, smoke is not fed into the space above the shell 1 or the smoke is less, the smoke sensor 8 is not triggered, the fan blades 33 continuously rotate to actively suck hot air and smoke, the hot air enters the pipe II 73 and the pipe I71 along the circular through hole II 51 of the adjusting plate 5, when the temperature of the hot air is fifty degrees after the hot air enters the shell 1, as shown in fig. 9, the memory metal spring II 36 is heated and deformed to stretch, the memory metal spring II 36 abuts against the adjusting plate 5 through the pipe II 73 to move downwards, the adjusting plate 5 is separated from the assembling ring 41, part of smoke rises along the middle part of the assembling ring 41 to enter the space above the shell 1 to trigger the smoke sensor 6, the buzzer 7 gives an alarm, and the indoor fire is judged through the rising change of the temperature and the smoke.
If in summer, the indoor temperature is high (fourteen degrees), memory metal spring 6 is heated and takes place deformation and extend, the assembly ring 41 is upwards promoted to memory metal spring 6 upper end, after conducting strip two 44 and the laminating of conducting strip 311, conducting strip 311 releases the signal of telecommunication once to another singlechip, then it is not rotatory after another singlechip control motor 32 drives the rotatory certain time of flabellum 33, conducting strip two 44 and conducting strip one 311 continue to laminate promptly and no longer send electric signal to another singlechip, at this moment as shown in figure 8, push pedal 42 is located stopper 72 top, 5 laminating pipes of regulating plate two 73, it is rotatory to trigger smoke sensor 6 control motor 32 through smog in the high temperature chamber.
Claims (5)
1. A smoke sensitive fire alarm comprising: the air conditioner comprises a shell (1), a mounting part (2), an air inlet device (3), an air conditioning part (4), an adjusting plate (5), a first memory metal spring (6), a limiting part (7), a smoke sensor (8) and a buzzer (9); the mounting part (2) is connected with the shell (1) through threads; the method is characterized in that: casing (1) bottom surface is open, opening (11) have been seted up on the perpendicular wall of casing (1) lower extreme, be provided with a plurality of check valves (12) on the perpendicular wall of casing (1) upper end department, first (13) of vertically spout have been seted up respectively to casing (1) relative internal face, admission line (14) are installed to the inside lower extreme of casing (1), admission line (14) are the round platform form, and wherein admission line (14) major diameter end is located the below, the inside upper end of casing (1) is provided with smoke transducer (8) and buzzer (9), air inlet unit (3) initiative suction humming smog, air inlet unit (3) include: a mounting rod (31), a motor (32) and a fan blade (33);
the air conditioning part (4) includes: the assembling device comprises an assembling ring (41), push plates (42) and slideways (43), wherein a first circular through hole (411) is formed in the center of the assembling ring (41), the outer wall of the assembling ring (41) is attached to the inner wall of a shell (1), blocks are respectively arranged on the opposite outer walls of the assembling ring (41), the two blocks are meshed into first sliding grooves (13) of the shell (1), the push plates (42) are inverted L-shaped, the number of the push plates (42) is two, the two push plates (42) are oppositely arranged, horizontal plates of the two push plates (42) are oppositely arranged and extend towards the axle center of the first circular through hole (411), the number of the slideways (43) is two, and the two slideways (43) are oppositely arranged;
one end of the memory metal spring I (6) is attached to the lower end of the air inlet pipeline (14), and the other end of the memory metal spring I supports an assembly ring (41);
a circular through hole II (51) is formed in the center of the adjusting plate (5), a shaft (321) of the motor (32) penetrates through the circular through hole II (51) of the adjusting plate (5), the diameter of the adjusting plate (5) is larger than that of a circular through hole I (411) of the assembling ring (41), sliding blocks (52) are respectively arranged on two sides of the adjusting plate (5), and one ends of the two sliding blocks (52) are respectively meshed into the two slide ways (43);
the stopper (7) includes: the pipe I (71), the limiting blocks (72), the pipe II (73) and the memory metal spring II (74), wherein the upper end of the pipe I (71) is fixed on the mounting rod (31), the pipe I (71) wraps the shaft (321), the opposite wall surface of the inner wall of the pipe I (71) is provided with the horizontal sliding groove II (711), the sliding groove II (711) is internally provided with an elastic part, two vertical openings are formed in the two side wall surfaces forming an included angle with the sliding groove II (711), the limiting blocks (72) are two in number, the upper surface and the lower surface of the limiting block (72) are slope surfaces inclining towards the middle of the limiting block (72), the middle parts of the two side wall surfaces of the limiting block (72) are respectively provided with a sliding block II (721), one ends of the sliding blocks II (721) are respectively meshed into the sliding groove II (711), the pipe II (73) are nested at the lower end of the pipe I (71) and wrap the shaft (321), the diameter of the pipe II (73) is larger than the circular through opening II (51) of the adjusting plate (5), and the length of the pipe I (71) is larger than that of the pipe II (73).
2. A smoke sensitive fire alarm as claimed in claim 1 wherein: the smoke sensor (6) and the buzzer (7) are arranged on the top surface inside the shell (1), the smoke sensor (6) is triggered once, the motor is controlled to drive the fan blades to rotate for a certain time through the single chip microcomputer, after the smoke sensor (6) is triggered again within the rotating time of the fan blades (33), the buzzer (7) gives an alarm, and namely the buzzer (7) is electrified when the motor (32) is started.
3. A smoke sensitive fire alarm as claimed in claim 1 wherein: the bottom surface of the installation rod (31) is provided with a first conducting plate (311), the first conducting plate (311) is connected with another single chip microcomputer, a second memory metal spring (74) is arranged at the upper end of the first pipe (71), the deformation temperature of the second memory metal spring (74) is fifty degrees, the deformation temperature of the first memory metal spring (6) is forty degrees, a second conducting plate (44) is arranged on the top surface of the assembly ring (41), the second conducting plate (44) is opposite to the first conducting plate (311), and a certain distance is reserved between the second initial conducting plate (44) and the first conducting plate (311).
4. A smoke sensitive fire alarm as claimed in claim 1 wherein: when the second electric sheet (412) is attached to the first electric sheet (311), the second electric sheet (412) is electrified to the first electric sheet (311), the first electric sheet (311) releases an electric signal to the other single chip microcomputer, the other single chip microcomputer controls the motor (32) to drive the fan blade (33) to rotate for a certain time and then not rotate, namely, the second electric sheet (44) is continuously attached to the first electric sheet (31) (1) and does not send an electric signal to the other single chip microcomputer any more.
5. A smoke sensitive fire alarm as claimed in claim 1 wherein: the motor (32) is installed in the shell (1) through the installation rod (31), the motor (32) is located between the opening (11) and the one-way valve (12), a shaft (321) of the motor (32) extends downwards into the air inlet pipeline (14), and the fan blades (33) are installed at the extending end of the shaft (321) and located in the air inlet pipeline (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210285305.6A CN115631597A (en) | 2022-03-23 | 2022-03-23 | Smoke sensitive fire alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210285305.6A CN115631597A (en) | 2022-03-23 | 2022-03-23 | Smoke sensitive fire alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115631597A true CN115631597A (en) | 2023-01-20 |
Family
ID=84902469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210285305.6A Pending CN115631597A (en) | 2022-03-23 | 2022-03-23 | Smoke sensitive fire alarm |
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| Country | Link |
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| CN (1) | CN115631597A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115775434A (en) * | 2023-02-13 | 2023-03-10 | 国网山东省电力公司鄄城县供电公司 | Fire monitoring and alarming device for transformer substation |
| CN116597601A (en) * | 2023-07-14 | 2023-08-15 | 威海广泰空港设备股份有限公司 | Intelligent fire control alarm system |
| CN116631139A (en) * | 2023-05-30 | 2023-08-22 | 营口天成消防设备有限公司 | Fire control is with wireless smoke detection formula fire detection alarm device that feels |
-
2022
- 2022-03-23 CN CN202210285305.6A patent/CN115631597A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115775434A (en) * | 2023-02-13 | 2023-03-10 | 国网山东省电力公司鄄城县供电公司 | Fire monitoring and alarming device for transformer substation |
| CN116631139A (en) * | 2023-05-30 | 2023-08-22 | 营口天成消防设备有限公司 | Fire control is with wireless smoke detection formula fire detection alarm device that feels |
| CN116597601A (en) * | 2023-07-14 | 2023-08-15 | 威海广泰空港设备股份有限公司 | Intelligent fire control alarm system |
| CN116597601B (en) * | 2023-07-14 | 2023-09-19 | 威海广泰空港设备股份有限公司 | Intelligent fire control alarm system |
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