阅读说明：本技术 一种基于人工智能的消防报警装置 (Fire alarm device based on artificial intelligence ) 是由 高令涛 徐双 于 2021-11-09 设计创作，主要内容包括：本发明适用于消防报警器技术领域,提供了一种基于人工智能的消防报警装置,包括：引流机构；过滤机构,过滤机构设置在壳体内；过滤机构还包括清理组件,清理组件用于对过滤机构包括的碗形槽进行清理；提醒机构,在过滤机构发生堵塞时,引流机构与提醒机构之间导通,气流沿提醒机构内流动时,使提醒机构包括的哨子发出响声以及使提醒机构生成清理信号并发送至智能处理器；还包括烟雾传感器、智能处理器和摄像头。本发明实施例提供的消防报警装置不仅能够实现智能化的监控消防报警效果,而且还能够在烟感报警器在长期的安装监测中,解决了由于附着在烟感报警器的烟槽内,堵塞了烟槽就会影响进烟,降低烟感报警器的灵敏度的问题。(The invention is suitable for the technical field of fire alarm, and provides a fire alarm device based on artificial intelligence, which comprises: a drainage mechanism; the filtering mechanism is arranged in the shell; the filtering mechanism also comprises a cleaning component, and the cleaning component is used for cleaning the bowl-shaped groove in the filtering mechanism; the reminding mechanism is communicated with the drainage mechanism when the filtering mechanism is blocked, and when airflow flows along the inside of the reminding mechanism, a whistle included in the reminding mechanism makes a sound and the reminding mechanism generates a cleaning signal and sends the cleaning signal to the intelligent processor; the intelligent smoke detector further comprises a smoke sensor, an intelligent processor and a camera. The fire alarm device provided by the embodiment of the invention not only can realize the intelligent monitoring fire alarm effect, but also can solve the problems that the smoke slot is blocked to influence the smoke inlet and the sensitivity of the smoke alarm is reduced because the smoke alarm is attached to the smoke slot of the smoke alarm in the long-term installation and monitoring of the smoke alarm.)

1. The utility model provides a fire alarm device based on artificial intelligence which characterized in that, fire alarm device include: the drainage mechanism is arranged at the air inlet end of the shell; a filter mechanism disposed within the housing; the filtering mechanism further comprises a cleaning assembly, and the cleaning assembly is used for cleaning the bowl-shaped groove included by the filtering mechanism when receiving a cleaning signal from the intelligent processor; the reminding mechanism is arranged on the outer side of the shell, when the filtering mechanism is blocked, the drainage mechanism is communicated with the reminding mechanism, and when airflow flows along the inside of the reminding mechanism, a whistle included in the reminding mechanism makes a sound and the reminding mechanism generates a cleaning signal and sends the cleaning signal to the intelligent processor; the smoke sensor is used for detecting whether smoke exists in the air flow flowing through the shell, and sending a warning signal to the intelligent processor when the smoke exists in the air flow; the intelligent processor is used for receiving the cleaning signal sent by the self-reminding mechanism, sending the cleaning signal to the cleaning assembly, receiving the warning signal sent by the smoke sensor and the image sent by the camera, processing the image, judging whether smoke exists in the image or not, and controlling the orientation of the drainage port of the drainage mechanism when smoke exists in the image; when the intelligent processor receives a warning signal sent by the smoke sensor, the warning signal is sent to the mobile terminal and the alarm, the alarm is arranged on the outer wall of the shell, and the alarm is used for broadcasting alarm information; and the camera is used for acquiring an image in a target view range and sending the image to the intelligent processor.

2. A fire alarm device based on artificial intelligence as claimed in claim 1, wherein the housing is fixedly mounted on a mounting top seat, a mounting seat plate is fixedly arranged at an air outlet end of the housing, the smoke sensor is mounted on the mounting seat plate, and a plurality of ventilation holes are uniformly distributed on the mounting seat plate at two sides of the smoke sensor; an air exhaust channel is formed between the mounting base plate and the mounting top base, and a protective net is arranged at the end part of the air exhaust channel.

3. A fire alarm device based on artificial intelligence as claimed in claim 2, wherein the filtering mechanism comprises a supporting cover slidably disposed in the housing along the direction of air flow in the housing, a bowl-shaped groove is fixedly disposed on the supporting cover, and a plurality of filtering holes are uniformly distributed on the side wall of the bowl-shaped groove; the supporting cover is connected with the mounting seat plate through a second spring in a supporting mode.

4. A fire alarm device based on artificial intelligence as claimed in claim 3, wherein a first channel is provided on the housing, and when the filtering mechanism is blocked, the activated drainage mechanism moves the filtering mechanism upward to make the supporting cover and the first channel dislocated, and the drainage mechanism is communicated with the reminding mechanism.

5. A fire alarm device based on artificial intelligence according to claim 3 or 4, characterized in that the cleaning assembly is arranged on the bowl-shaped groove, the cleaning assembly comprises a cleaning motor arranged on the bottom plate of the bowl-shaped groove, a cleaning shaft is connected to an output shaft of the cleaning motor, a supporting cross bar is arranged on the cleaning shaft through an elastic supporting member, a cleaning rod matched with the side wall of the bowl-shaped groove is arranged at the end of the supporting cross bar, and the cleaning rod is in contact with the side wall of the bowl-shaped groove through the elastic supporting member.

6. A fire alarm device based on artificial intelligence according to claim 5, wherein the elastic supporting member comprises a supporting cylinder fixedly mounted on the cleaning shaft, a supporting slider is supported in the supporting cylinder through a first spring, the supporting slider is slidably disposed in the supporting cylinder, and an end of the supporting cross rod extending into the supporting cylinder is connected with the supporting slider.

7. A fire alarm device based on artificial intelligence according to claim 4, wherein the reminding mechanism includes a ring box fixedly arranged on the outer wall of the housing, a buzzer cavity is arranged on the ring box, the reminding mechanism includes a whistle arranged in the buzzer cavity, when the buzzer cavity is communicated with the inner cavity of the housing through a first channel, the started drainage mechanism enables air to flow into the buzzer cavity through the first channel, and the whistle is sounded by air flowing along the buzzer cavity.

8. A fire alarm device based on artificial intelligence as recited in claim 7, wherein an airflow sensor is further disposed in the buzzer chamber, the airflow sensor is configured to detect whether a flowing airflow blown from the first channel exists in the buzzer chamber, if so, the airflow sensor generates a cleaning signal and sends the cleaning signal to the intelligent processor, and the intelligent processor receives the cleaning signal sent from the airflow sensor and sends the cleaning signal to the cleaning assembly.

9. A fire alarm device based on artificial intelligence according to claim 4, 7 or 8, wherein the flow guiding mechanism includes an induced draft cover fixedly installed at the air inlet end of the housing, an induced draft part is provided in the induced draft cover, a blowing port is provided at the top end of the induced draft cover, the blowing port faces the filtering mechanism, an induced draft bottom plate is provided at the bottom end of the induced draft cover, an annular plate is coaxially and rotatably provided on the induced draft bottom plate, the flow guiding port of the flow guiding mechanism is an induced draft port, the induced draft port is provided at one side of the annular plate, and a servo motor for driving the annular plate to rotate is further installed on the induced draft cover.

10. A fire alarm device based on artificial intelligence as claimed in claim 9, wherein the camera is mounted in the middle of the induced draft bottom plate, and when the servo motor is used to drive the annular plate to rotate, the induced draft opening performs circular motion around the implementation camera.

Technical Field

The embodiment of the invention belongs to the technical field of fire alarm devices, and particularly relates to a fire alarm device based on artificial intelligence.

Background

The fire alarm device has many related aspects, the fire hazard has become one of the major safety hazards of urban people life, a plurality of large and small fires can cause serious loss to lives and properties of people every year, the prevention situation of the fire is not slow, the fire alarm device is one of the most important means for preventing the fire, and particularly, the fire alarm device essentially detects the existence of smoke through a smoke sensor and then triggers the alarm based on the existence of the smoke.

There are some problems with existing fire alarm devices: for example, in long-term installation and monitoring of the smoke detector alarm, dirt such as dust in the environment can be attached to a smoke groove of the smoke detector alarm, the smoke groove is blocked, smoke feeding is affected, and therefore the sensitivity of the smoke detector alarm is reduced.

Disclosure of Invention

The embodiment of the invention aims to provide a fire-fighting alarm device based on artificial intelligence, and aims to solve the problem that in long-term installation and monitoring of a smoke-sensitive alarm, dirt such as dust in the environment can be attached to a smoke groove of the smoke-sensitive alarm, the smoke groove is blocked, smoke feeding is affected, and the sensitivity of the smoke-sensitive alarm is reduced.

The embodiment of the invention is realized in such a way that the fire-fighting alarm device based on artificial intelligence comprises:

the drainage mechanism is arranged at the air inlet end of the shell;

a filter mechanism disposed within the housing; the filtering mechanism further comprises a cleaning assembly, and the cleaning assembly is used for cleaning the bowl-shaped groove included by the filtering mechanism when receiving a cleaning signal from the intelligent processor so as to enable the filtering holes in the bowl-shaped groove to be communicated in time;

the reminding mechanism is arranged on the outer side of the shell, when the filtering mechanism is blocked, the drainage mechanism is communicated with the reminding mechanism, and when airflow flows along the inside of the reminding mechanism, a whistle included in the reminding mechanism makes a sound and the reminding mechanism generates a cleaning signal and sends the cleaning signal to the intelligent processor, and the reminding mechanism makes a sound to remind related personnel of the need of cleaning the fire alarm device;

the smoke sensor is used for detecting whether smoke exists in the air flow flowing through the shell, and sending a warning signal to the intelligent processor when the smoke exists in the air flow;

the intelligent processor is used for receiving the cleaning signal sent by the self-reminding mechanism, sending the cleaning signal to the cleaning assembly, receiving the warning signal sent by the smoke sensor and the image sent by the camera, processing the image, judging whether smoke exists in the image or not, and controlling the orientation of the drainage port of the drainage mechanism when smoke exists in the image; when the intelligent processor receives a warning signal sent by the smoke sensor, the warning signal is sent to the mobile terminal and the alarm, the alarm is arranged on the outer wall of the shell, and the alarm is used for broadcasting alarm information;

and the camera is used for acquiring an image in a target view range and sending the image to the intelligent processor.

In some embodiments provided by the invention, the shell is fixedly arranged on the mounting top seat, the air outlet end of the shell is fixedly provided with a mounting seat plate, the smoke sensor is arranged on the mounting seat plate, and a plurality of ventilation holes are uniformly distributed on the mounting seat plate positioned at two sides of the smoke sensor; an exhaust channel is formed between the mounting base plate and the mounting top base, a protective net is arranged at the end part of the exhaust channel, when airflow flowing in the shell blows to the smoke sensor, the smoke sensor is used for detecting whether smoke exists in the airflow flowing through the shell, and when smoke exists in the airflow, a warning signal is sent to the intelligent processor; the airflow enters the air exhaust channel after passing through the air vents and is finally exhausted through the protective screen.

In some embodiments provided by the present invention, the filtering mechanism includes a supporting cover slidably disposed in the housing along the direction of the airflow in the housing, a bowl-shaped groove is fixedly disposed on the supporting cover, and a plurality of filtering holes are uniformly disposed on a side wall of the bowl-shaped groove; the supporting cover is connected with the mounting seat plate through a second spring in a supporting mode.

In some embodiments provided by the invention, the shell is provided with a first channel, when the filtering mechanism is blocked, the started drainage mechanism enables the filtering mechanism to move upwards to enable the supporting cover and the first channel to be staggered, the drainage mechanism is communicated with the reminding mechanism, and at the moment, airflow enters the reminding mechanism along the first channel.

In some embodiments, the cleaning assembly is disposed on the bowl-shaped groove, the cleaning assembly includes a cleaning motor mounted on a bottom plate of the bowl-shaped groove, a cleaning shaft is connected to an output shaft of the cleaning motor, a support cross bar is disposed on the cleaning shaft through an elastic support member, a cleaning rod matched with a side wall of the bowl-shaped groove is disposed at an end of the support cross bar, and the elastic support member enables the cleaning rod to contact the side wall of the bowl-shaped groove.

In some embodiments of the present invention, the elastic support comprises a support cylinder fixedly mounted on the cleaning shaft, a support slider is supported and arranged in the support cylinder through a first spring, the support slider is slidably arranged in the support cylinder, and an end of a support cross rod extending into the support cylinder is connected with the support slider.

In some embodiments provided by the invention, the reminding mechanism comprises a ring box fixedly arranged on the outer wall of the shell, a buzzer cavity is formed in the ring box, the reminding mechanism comprises a whistle arranged in the buzzer cavity, when the buzzer cavity is communicated with the inner cavity of the shell through a first channel, the started drainage mechanism enables air flow to enter the buzzer cavity through the first channel, and the whistle is enabled to sound through the air flow flowing along the buzzer cavity, so that the reminding effect is achieved.

In some embodiments provided by the invention, an airflow sensor is further arranged in the buzzer cavity, the airflow sensor is used for detecting whether flowing airflow blown from the first channel exists in the buzzer cavity, if so, the airflow sensor generates a cleaning signal and sends the cleaning signal to an intelligent processor, the intelligent processor receives the cleaning signal sent by the airflow sensor and sends the cleaning signal to a cleaning assembly, and the cleaning assembly is matched to realize the conduction of a filter hole on the support cover; the cleaning assembly comprises a cleaning motor, a micro motor and an intelligent processor, wherein the cleaning motor is used for receiving a cleaning signal sent by the intelligent processor and starting the cleaning signal.

In some embodiments provided by the present invention, the flow guiding mechanism includes an induced draft cover fixedly installed at the air inlet end of the housing, an induced draft member is installed in the induced draft cover, a blowing port is formed at the top end of the induced draft cover, the blowing port faces the filtering mechanism, an induced draft bottom plate is formed at the bottom end of the induced draft cover, an annular plate is coaxially and rotatably installed on the induced draft bottom plate, the flow guiding port of the flow guiding mechanism is an induced draft port, the induced draft port is arranged on one side of the annular plate, a servo motor for driving the annular plate to rotate is further installed on the induced draft cover, wherein a driving gear is installed on an output shaft of the servo motor, and a driven gear ring meshed with the driving gear is coaxially installed on the annular plate.

In some embodiments provided by the present invention, the camera is installed in the middle of the air inducing bottom plate, and the air inducing opening performs a circular motion around the camera when the servo motor is used to drive the annular plate to rotate.

Compared with the prior art, in the fire alarm device provided by the embodiment of the invention, when the filter mechanism is not blocked, airflow can smoothly enter the shell under the action of the drainage mechanism and then passes through the filter mechanism and then blows towards the smoke sensor, the smoke sensor is used for detecting whether smoke exists, when smoke exists again, a warning signal is sent to the intelligent processor, the intelligent processor receives the warning signal sent by the smoke sensor and sends the warning signal to the mobile terminal and the alarm so as to broadcast and send the warning signal to remind workers holding the mobile terminal, and the fire alarm effect is achieved; in addition, when filter mechanism took place to block up, the drainage mechanism that starts can make in the casing under the condition of atmospheric pressure increase for one section distance of filter mechanism rebound, and then make and switch on between casing and the buzzing chamber, after switching on, not only the whistle can make a sound, in order to remind filter mechanism to block up, but also can trigger the operation of clearance subassembly to and solve filter mechanism's jam problem in time. In conclusion, the fire alarm device provided by the embodiment of the invention not only can realize the intelligent monitoring fire alarm effect, but also can solve the problems that the smoke slot is blocked to influence the smoke inlet and the sensitivity of the smoke alarm is reduced in the long-term installation and monitoring of the smoke alarm.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise. Wherein:

FIG. 1 is a block diagram of an artificial intelligence based fire alarm system;

FIG. 2 is an enlarged schematic view of a portion a of FIG. 1;

FIG. 3 is a schematic perspective view of an air intake turntable in a fire alarm device based on artificial intelligence;

FIG. 4 is a schematic diagram of a filtering mechanism in an artificial intelligence based fire alarm device;

FIG. 5 is an enlarged view of the structure at b in FIG. 4;

fig. 6 is a control schematic block diagram of a fire alarm device based on artificial intelligence.

In the drawings: 100. a housing; 101. a first channel; 102. a second channel; 200. installing a top seat; 300. a filtering mechanism; 301. a bowl-shaped groove; 302. a filtration pore; 303. a support housing; 304. a cleaning rod; 305. cleaning the motor; 306. cleaning the shaft; 307. a support rail; 308. a support cylinder; 309. a support slide block; 310. a first spring; 311. an air exhaust channel; 312. a protective net; 313. a second spring; 400. a smoke sensor; 401. mounting a seat plate; 402. a vent hole; 500. an intelligent processor; 600. a ring box; 601. a bee sound cavity; 602. a whistle; 603. an airflow sensor; 604. a collection chamber; 605. a discharge valve; 700. an air inducing piece; 800. a camera; 900. an induced draft cover; 901. an induced draft bottom plate; 902. an air blowing port; 903. an annular plate; 904. an air inducing port; 905. a servo motor; 906. a driving gear; 907. and a driven toothed ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 and 6, in a preferred embodiment of the present invention, an artificial intelligence-based fire alarm device includes:

the drainage mechanism is arranged at the air inlet end of the shell 100;

a filter mechanism 300, the filter mechanism 300 being disposed within the housing 100; the filtering mechanism 300 further comprises a cleaning component, and the cleaning component is used for cleaning the bowl-shaped groove 301 included in the filtering mechanism 300 when receiving a cleaning signal from the intelligent processor 500, so that the filtering holes 302 on the bowl-shaped groove 301 are communicated in time;

the reminding mechanism is arranged on the outer side of the shell 100, when the filtering mechanism 300 is blocked, the drainage mechanism and the reminding mechanism are communicated, when airflow flows along the inside of the reminding mechanism, a whistle 602 included in the reminding mechanism makes a sound, the reminding mechanism generates a cleaning signal and sends the cleaning signal to the intelligent processor 500, and the reminding mechanism makes a sound to remind relevant personnel that the fire-fighting alarm device needs to be cleaned;

the smoke sensor 400 is configured to detect whether smoke exists in an airflow flowing through the housing 100, and send an alert signal to the intelligent processor 500 when smoke exists in the airflow;

the intelligent processor 500 is used for receiving the cleaning signal sent by the reminding mechanism, sending the cleaning signal to the cleaning assembly, receiving the warning signal sent by the smoke sensor 400 and receiving the image sent by the camera 800, processing the image, judging whether smoke exists in the image, and controlling the orientation of the drainage port of the drainage mechanism when smoke exists in the image; when receiving the warning signal sent by the smoke sensor 400, the intelligent processor 500 sends the warning signal to the mobile terminal and an alarm, wherein the alarm is arranged on the outer wall of the shell 100 and is used for broadcasting alarm information;

the camera 800 is configured to acquire an image within a target view range and send the image to the intelligent processor 500.

Referring to fig. 1, in the embodiment of the present invention, the housing 100 is fixedly mounted on the top mounting base 200, and the alarm device in the embodiment is mounted in a hanging manner through a screw hole on the top mounting base 200.

Further, in the embodiment of the present invention, an installation seat plate 401 is fixedly disposed at an air outlet end of the housing 100, the smoke sensor 400 is installed on the installation seat plate 401, and a plurality of ventilation holes 402 are uniformly distributed on the installation seat plate 401 located at two sides of the smoke sensor 400; an exhaust channel 311 is formed between the installation base plate 401 and the installation top base 200, a protective net 312 is arranged at an end of the exhaust channel 311, when the airflow flowing along the inside of the housing 100 blows towards the smoke sensor 400, the smoke sensor 400 is used for detecting whether smoke exists in the airflow flowing through the housing 100, and when smoke exists in the airflow, a warning signal is sent to the intelligent processor 500; the airflow enters the exhaust passage 311 through the vent 402 and is finally exhausted through the protection net 312.

As shown in fig. 1 and 4, in a preferred embodiment of the present invention, the filtering mechanism 300 includes a supporting cover 303 slidably disposed in the housing 100 along an airflow direction in the housing 100, a bowl-shaped groove 301 is fixedly disposed on the supporting cover 303, and a plurality of filtering holes 302 are uniformly disposed on a side wall of the bowl-shaped groove 301; the support cover 303 is supported and connected with the mounting seat plate 401 through a second spring 313.

Referring to fig. 1 and fig. 4, in the embodiment of the present invention, a first channel 101 is formed on the housing 100, when the filtering mechanism 300 is blocked, the activated drainage mechanism moves the filtering mechanism 300 upward to make the supporting cover 303 and the first channel 101 dislocate, the drainage mechanism is conducted with the reminding mechanism, and at this time, the airflow enters the reminding mechanism along the first channel 101.

Further, as shown in fig. 4 and 5, in the embodiment of the present invention, the cleaning assembly is disposed on the bowl-shaped groove 301, the cleaning assembly includes a cleaning motor 305 mounted on a bottom plate of the bowl-shaped groove 301, an output shaft of the cleaning motor 305 is connected to a cleaning shaft 306, the cleaning shaft 306 is provided with a support cross bar 307 through an elastic support, an end of the support cross bar 307 is provided with a cleaning rod 304 engaged with a side wall of the bowl-shaped groove 301, and the elastic support enables the cleaning rod 304 to contact with the side wall of the bowl-shaped groove 301.

Specifically, as shown in fig. 5, in the embodiment of the present invention, the elastic support includes a support cylinder 308 fixedly mounted on the cleaning shaft 306, a support slider 309 is supported and disposed in the support cylinder 308 through a first spring 310, the support slider 309 is slidably disposed in the support cylinder 308, and an end of a support cross bar 307 extending into the support cylinder 308 is connected to the support slider 309.

As shown in fig. 1, in a preferred embodiment provided by the present invention, the reminding mechanism includes a ring box 600 fixedly disposed on an outer wall of the casing 100, a bee sound cavity 601 is disposed on the ring box 600, the reminding mechanism includes a whistle 602 disposed in the bee sound cavity 601, when the bee sound cavity 601 is conducted with an inner cavity of the casing 100 through a first channel 101, the activated drainage mechanism makes air flow enter the bee sound cavity 601 through the first channel 101, and the whistle 602 sounds along the air flow flowing in the bee sound cavity 601, so as to achieve the reminding effect.

Further, in the embodiment of the present invention, an airflow sensor 603 is further disposed in the bee singing cavity 601, the airflow sensor 603 is configured to detect whether a flowing airflow blown from the first channel 101 exists in the bee singing cavity 601, if so, the airflow sensor 603 generates a cleaning signal and sends the cleaning signal to the intelligent processor 500, and the intelligent processor 500 receives the cleaning signal sent from the airflow sensor 603, sends the cleaning signal to a cleaning assembly, and cooperates with the cleaning assembly to implement conduction of the filter hole 302 on the supporting cover 303; wherein, the cleaning assembly comprises a cleaning motor 305 for receiving the cleaning signal sent from the intelligent processor 500 and starting, and the cleaning motor 305 adopts a micro motor.

As shown in fig. 1 to 3, in a preferred embodiment provided by the present invention, the air inducing cover 900 is fixedly installed at the air inlet end of the housing 100, an air inducing piece 700 is installed in the air inducing cover 900, an air blowing opening 902 is formed at the top end of the air inducing cover 900, the air blowing opening 902 faces the filtering mechanism 300, an air inducing bottom plate 901 is formed at the bottom end of the air inducing cover 900, an annular plate 903 is coaxially and rotatably installed on the air inducing bottom plate 901, the air inducing opening of the air inducing mechanism is an air inducing opening 904, the air inducing opening 904 is installed at one side of the annular plate 903, a servo motor 905 for driving the annular plate 903 to rotate is further installed on the air inducing cover 900, wherein a driving gear 906 is installed on an output shaft of the servo motor 905, and a driven gear ring 907 engaged with the driving gear 906 is coaxially installed on the annular plate 903.

In the embodiment of the present invention, the induced draft part 700 may be an induced draft fan or an induced draft pump.

In the embodiment of the present invention, the camera 800 is installed in the middle of the air inducing bottom plate 901, and when the annular plate 903 is driven to rotate by the servo motor 905, the air inducing opening 904 performs a circular motion around the camera 800.

Referring to fig. 1, in the embodiment of the present invention, the ring box 600 further has a collecting cavity 604, and a discharge valve 605 is disposed on one side of the bottom end of the collecting cavity 604, so that when the discharge valve 605 is opened, the dust collected in the collecting cavity 604 can be discharged conveniently; the housing 100 is further provided with a second channel 102, the inner cavity of the housing 100 is communicated with the collection cavity 604 through the second channel 102, and the top end of the induced draft cover 900 is of a conical structure, so that dust can enter the collection cavity 604 in a concentrated manner.

It can be seen that, in the fire alarm device provided in the embodiment of the present invention, when the filtering mechanism 300 is not blocked, the airflow can smoothly enter the casing 100 under the action of the drainage mechanism, and passes through the filtering mechanism 300 and then blows towards the smoke sensor 400, the smoke sensor 400 is configured to detect whether smoke exists, and when smoke exists again, sends an alarm signal to the intelligent processor 500, and the intelligent processor 500 receives the alarm signal sent by the smoke sensor 400 and sends the alarm signal to the mobile terminal and the alarm, so as to broadcast and send the alarm signal to remind a worker holding the mobile terminal, thereby playing a role of fire alarm; in addition, when filter mechanism 300 takes place to block up, the drainage mechanism that starts can make under the circumstances of casing 100 internal gas pressure increase for filter mechanism 300 moves a section distance upwards, and then makes and switches on between casing 100 and the buzzing chamber 601, switches on the back, and not only whistle 602 can make a sound to remind filter mechanism 300 to block up, but also can trigger the operation of clearance subassembly to and the jam problem of filter mechanism 300 is solved in time.

While embodiments of the invention have been disclosed above, it is not intended to be limited to the uses set forth in the specification and examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.