CN117746566A

CN117746566A - Smoke alarm device

Info

Publication number: CN117746566A
Application number: CN202410180295.9A
Authority: CN
Inventors: 马冰; 张月
Original assignee: Laiwu Shangye Machinery Equipment Co ltd
Current assignee: Laiwu Shangye Machinery Equipment Co ltd
Priority date: 2024-02-18
Filing date: 2024-02-18
Publication date: 2024-03-22
Anticipated expiration: 2044-02-18
Also published as: CN117746566B

Abstract

The invention discloses a smoke alarm device, which belongs to the technical field of alarm equipment and comprises a mounting base, wherein a controller for analyzing and detecting smoke is arranged in the mounting base, a shell is connected to the mounting base through threads, a dust receiving box is connected to the bottom of the shell through threads, a protection mechanism for protecting the controller is further arranged in the shell, a cleaning mechanism is arranged on the protection mechanism, four fixing grooves are further formed in the shell, an alarm for alarming is arranged in the fixing grooves, and the cleaning mechanism comprises a first cleaning mechanism and a second cleaning mechanism. According to the invention, the outer wall of the controller is provided with a layer of protection mechanism to protect the internal controller, so that the interference of sundries such as dust and the like on the analysis of the controller is reduced; and the dust on the protection mechanism is cleaned through the first cleaning mechanism and the second cleaning mechanism, so that manual cleaning is not needed, the maintenance of the alarm device is facilitated, and the sensitivity of the alarm can be ensured.

Description

Smoke alarm device

Technical Field

The invention belongs to the technical field of alarm equipment, and particularly relates to a smoke alarm device.

Background

The smoke alarm device is generally referred to as a smoke alarm, namely, the smoke concentration is monitored to realize fire prevention, and when the smoke concentration generated when the fire occurs in a monitoring range is monitored to reach the trigger concentration of the smoke alarm, the smoke alarm alarms through a buzzer to remind personnel of the occurrence of the fire.

Because the smoke alarm is generally provided with an opening so that smoke can enter the smoke alarm for detection, but some smoke alarms arranged outdoors are often placed outdoors, the smoke alarm is easy to occupy a large amount of dust, or tiny impurities doped in the smoke enter the smoke alarm when the smoke occurs, so that the detection sensitivity of the smoke alarm is affected; and when the adhesion has the dust in the alarm, generally need the manual work to clear up, manual cleaning is more troublesome, need dismantle whole alarm device, and the manual work can't judge how much of inside adhesion dust volume, leads to the clearance untimely, also can influence alarm detection's accuracy.

Disclosure of Invention

The present invention is directed to a smoke alarm device for solving the above-mentioned problems of the prior art.

The aim of the invention can be achieved by the following technical scheme:

the smoke alarm device comprises a mounting base, wherein a controller for analyzing and detecting smoke is arranged in the mounting base, a shell is connected to the mounting base through threads, an opening is formed in the shell, an ash receiving box is connected to the bottom of the shell through threads, a protection mechanism for protecting the controller is further arranged in the shell, a cleaning mechanism is arranged on the protection mechanism, four fixing grooves are further formed in the shell, and an alarm for alarming is arranged in the fixing grooves;

the cleaning mechanism comprises a first cleaning mechanism and a second cleaning mechanism;

the controller detects and analyzes the smoke so as to generate corresponding alarm instructions, the alarm is driven to alarm, and meanwhile, the controller drives the protection mechanism and the cleaning mechanism to operate according to the detection and analysis results of the smoke.

Further, protection machanism includes the fixed disk, the fixed disk is connected with the mounting base inside through four strengthening ribs that are equipped with, first clearance mechanism threaded connection is in the bottom of fixed disk, it is connected with the ring to rotate on the inner wall of fixed disk, the top of ring is equipped with round terminal surface tooth, still be equipped with the riser on the fixed disk, be equipped with the axis of rotation on the riser, the one end of axis of rotation is equipped with first micro motor, the other end of axis of rotation is connected with the gear, gear and terminal surface tooth meshing, the bottom of ring still is equipped with two first erection columns, the bottom rotation of first erection column is connected with first electric fan.

Further, a second mounting column is arranged on the outer wall of the first mounting column, a second electric fan is arranged at the tail end of the second mounting column, and the first electric fan and the second electric fan are electrically connected with the controller.

Further, the first cleaning mechanism comprises a protection cylinder connected with the fixed disc, a plurality of smoke penetrating holes are formed in the outer wall and the bottom of the protection cylinder, a round mounting hole is formed in the center of the bottom of the protection cylinder, a rectangular mounting hole is formed in one side of the round mounting hole, a second micro motor is arranged in the round mounting hole, an installation shaft matched with the round mounting hole is installed at the output end of the second micro motor, a rotating plate is connected to the installation shaft, a scraping plate is arranged on one side of the rotating plate, the second cleaning mechanism is installed at the tail end of the scraping plate, and the scraping edge of the scraping plate and one side edge of the rectangular mounting hole are on the same plane.

Further, a first electric control telescopic column is arranged in the rectangular mounting hole, a push plate is arranged at the output end of the first electric control telescopic column, and the push plate is matched with the rectangular mounting hole.

Further, the second cleaning mechanism comprises a mounting plate, one side of the mounting plate, which is close to the protection cylinder, is an arc surface, a mounting groove is formed in one side of the mounting plate, which is close to the protection cylinder, a second electric control telescopic column is arranged at the bottom of the mounting groove, a fixing plate is mounted at the output end of the second electric control telescopic column, a plurality of soft brushes are arranged on one side of the fixing plate, which is close to the protection cylinder, and a transversely arranged ash ejection plate is further arranged at the middle upper part of the mounting groove.

Further, a plurality of hollow grooves are further formed in the bottom of the mounting groove.

Further, four control grooves are further formed in the mounting base, the four control grooves are respectively formed in the tops of the four fixing grooves, an electric control door is mounted in the control grooves, and a layer of sealing gasket is arranged on the periphery of the electric control door.

The invention has the beneficial effects that:

according to the invention, the outer wall of the controller is provided with a layer of protection mechanism to protect the internal controller, so that the interference of sundries such as dust and the like on the analysis of the controller is reduced; and the dust on the protection mechanism is cleaned through the first cleaning mechanism and the second cleaning mechanism, so that manual cleaning is not needed, the maintenance of the alarm device is facilitated, and the sensitivity of the alarm can be ensured.

The invention is provided with a plurality of electric fans, the electric fans can suck air when rotating positively, which is beneficial to the entry of smoke, the electric fans can blow air when rotating reversely, which is beneficial to the cleaning of dust during the dust removing operation, and the dust entering the interior from the smoke-permeable hole during the dust removing operation can be effectively reduced.

The invention obtains the difference value by comparing the transmission rate value generated after the first alarm with the transmission rate value after each alarm is finished, the difference value can show the transmission rate difference value of the smoke entering the interior, when the difference value is larger, that is, the backward rate is slower compared with the first time, the more dust accumulated on the protection mechanism can be proved, when the difference value exceeds the preset difference value threshold, the dust can be considered to be treated at the moment, the dust removing operation can be automatically carried out, the dust can be removed accurately according to the quantity of the dust, and the alarm accuracy can be ensured.

Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic diagram of an explosive structure according to the present invention;

FIG. 3 is a schematic view of the structure of the protection mechanism of the present invention;

FIG. 4 is a schematic view of a first cleaning mechanism according to the present invention;

FIG. 5 is a schematic view of a portion of the structure of a cartridge of the present invention;

fig. 6 is a schematic structural view of a second cleaning mechanism in the present invention.

The drawings illustrate:

1. a mounting base; 2. a controller; 3. a housing; 4. an opening; 5. an ash receiving box; 6. a protection mechanism; 7. a second cleaning mechanism; 8. a fixing groove; 9. an alarm; 102. an electric control door; 103. a sealing gasket; 601. a fixed plate; 602. a circular ring; 603. end face teeth; 604. a vertical plate; 605. a first micro motor; 606. a gear; 607. a first mounting post; 608. a first electric fan; 609. a first cleaning mechanism; 610. a second mounting post; 611. a second electric fan; 612. reinforcing ribs; 6091. a protective cylinder; 6092. smoke penetration holes; 6093. a circular mounting hole; 6094. rectangular mounting holes; 6095. a second micro motor; 6096. a mounting shaft; 6097. a rotating plate; 6098. a scraper; 6099. the first electric control telescopic column; 60910. a push plate; 701. a mounting plate; 702. a mounting groove; 703. the second electric control telescopic column; 704. a fixing plate; 705. a soft brush; 706. an ash flicking plate; 707. and (5) hollowing out the groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The utility model provides a smog alarm device, as shown in fig. 1, fig. 2, including mounting base 1, mounting base 1 installs on the wall body, be equipped with in the mounting base 1 to smog carries out the controller 2 that detects, controller 2 still can be used to control the electrical property part on this device, threaded connection has shell 3 on the mounting base 1, be equipped with opening 4 on the shell 3, the bottom threaded connection of shell 3 has and connects grey box 5, still install a protection machanism 6 that protects controller 2 in the shell 3, be equipped with clearance mechanism on the protection machanism 6, still be equipped with four fixed slots 8 on the shell 3, be equipped with the alarm 9 that is used for reporting to the police in the fixed slot 8, still be equipped with four control slots on mounting base 1, four control slots set up the top at four fixed slots 8 respectively, install automatically controlled door 102 in the control slot, be equipped with one deck sealing pad 103 around the automatically controlled door 102. When smoke alarm does not occur, the electric control door 102 extends out of the baffle column fixing groove 8, so that the alarm 9 is protected, the influence of external impurity dust and the like on the alarm 9 is reduced, when the controller 2 senses smoke information, the electric control door 102 is controlled to shrink to control the inside of the groove, the alarm 9 is exposed, and alarm operation is performed; the cleaning mechanism comprises a first cleaning mechanism 609 and a second cleaning mechanism 7, the controller 2 detects and analyzes smoke, so that corresponding alarm instructions are generated, the alarm 9 is driven to alarm, and meanwhile, the controller 2 drives the protection mechanism 6 and the cleaning mechanism to operate according to the detection and analysis results of the smoke. The ash receiving box 5 is used for containing dust produced by the cleaning mechanism, and is in threaded connection with the dust receiving box, so that the dust can be cleaned regularly. When smoke is generated, the smoke enters the alarm device through the opening 4 to be in contact with the controller 2, the controller 2 detects and analyzes the smoke so as to judge whether a corresponding alarm signal is generated, and when the alarm signal is generated, the smoke is transmitted to the alarm 9 through the controller 2 to alarm, so that fire alarm is implemented; the controller 2 can also judge whether the protection cylinder 6091 occupies a large amount of dust according to the analysis of the smoke, thereby affecting the sensitivity of the controller 2, and drive the protection mechanism 6 and the two cleaning mechanisms to perform dust removal operation, thereby guaranteeing the sensitivity of fire alarm.

As shown in fig. 3, the protection mechanism 6 includes a fixing plate 601, the fixing plate 601 is connected with the inside of the mounting base 1 through four provided reinforcing ribs 612, a first cleaning mechanism 609 is in threaded connection with the bottom of the fixing plate 601, a ring 602 is rotatably connected on the inner wall of the fixing plate 601, a circle of end face teeth 603 is arranged on the top of the ring 602, a vertical plate 604 is further arranged on the fixing plate 601, a rotating shaft is arranged on the vertical plate 604, one end of the rotating shaft is provided with a first micro motor 605, the other end of the rotating shaft is connected with a gear 606, the gear 606 is meshed with the end face teeth 603, two first mounting posts 607 are further arranged at the bottom of the ring 602, a first electric fan 608 is rotatably connected to the bottom of the first mounting posts 607, a second mounting post 610 is arranged on the outer wall of the first mounting posts 607, a second electric fan 611 is arranged on the tail end of the second mounting posts 610, and the first electric fan 608 and the second electric fan 611 are electrically connected with the controller 2. The first electric fan 608 and the second electric fan 611 are internally provided with direct current motors, and can be controlled by the controller 2 to perform forward and reverse rotation, and when dust removal is not needed, the first electric fan 608 and the second electric fan 611 perform slow forward rotation to perform air suction operation, so that when smoke occurs, the smoke can be sucked into the alarm device more quickly; when dust removal is needed, the controller 2 controls the two electric fans to rotate reversely to perform blowing operation, so that dust removal operation by the two cleaning mechanisms can be more convenient, and dust can be prevented from entering the interior from the smoke-permeable holes 6092 when the two cleaning mechanisms are cleaned; the first micro motor 605 drives the slot gear 606 to rotate, and the slot gear 606 is meshed with the end face teeth 603 to drive the whole circular ring 602 to rotate, so that the first electric fan 608 and the second electric fan 611 can be driven to do circular motion, the range of blowing operation is wider, and dust can be conveniently treated.

As shown in fig. 4 and 5, the first cleaning mechanism 609 includes a protection cylinder 6091 connected to the fixing plate 601, a plurality of smoke holes 6092 are formed in the outer wall and the bottom of the protection cylinder 6091, a circular mounting hole 6093 is formed in the center of the bottom of the protection cylinder 6091, a rectangular mounting hole 6094 is formed in one side of the circular mounting hole 6093, a second micro motor 6095 is arranged in the circular mounting hole 6093, an installation shaft 6096 matched with the circular mounting hole 6093 is installed at the output end of the second micro motor 6095, a rotating plate 6097 is connected to the installation shaft 6096, a scraping plate 6098 is arranged on one side of the rotating plate 6097, the second cleaning mechanism 7 is installed at the tail end of the scraping plate 6098, a scraping edge of the scraping plate 6098 and one side edge of the rectangular mounting hole 6094 are on the same plane, a first electric control telescopic column 6099 is installed in the rectangular mounting hole 6094, a push plate 60910 is arranged at the output end of the first electric control telescopic column 6099, and the push plate 60910 is matched with the rectangular mounting hole 6094. The protection cylinder 6091 is used for protecting the controller 2 in the interior, external sundries or a large amount of dust enter the interference controller 2, the smoke penetrating hole 6092 is arranged, smoke is convenient to enter, when dust is required to be removed, the controller 2 controls the second micro motor 6095 to rotate, the rotating plate 6097 is driven to do circular motion, so that dust adhered to the bottom of the protection cylinder 6091 is scraped through the scraping plate 6098, meanwhile, the rotating plate 6097 is driven to do circular motion on the outer wall of the protection cylinder 6091 when rotating, the dust on the outer wall is brushed off, the dust can not block the smoke penetrating hole 6092 or enter the interior from the smoke penetrating hole 6092 due to blowing of the electric fan, dust removing operation is facilitated, and when scraping plate 6098 stops resetting, the scraping edge of the scraping plate 6098 and one side of the rectangular mounting hole 6094 are located on the same plane, and the glued dust can be located on the pushing plate 60910, the first electric control telescopic pushing plate 6099 stretches out and drives the dust collecting box 60910 to push dust into the dust collecting box 5.

As shown in fig. 6, the second cleaning mechanism 7 includes a mounting plate 701, one side of the mounting plate 701, which is close to the protection cylinder 6091, is a cambered surface, a mounting groove 702 is formed in one side of the mounting plate 701, which is close to the protection cylinder 6091, a second electric control telescopic column 703 is formed in the bottom of the mounting groove 702, a fixing plate 704 is mounted on the output end of the second electric control telescopic column 703, a plurality of soft brushes 705 are arranged on one side of the fixing plate 704, which is close to the protection cylinder 6091, a dust ejection plate 706 which is transversely arranged is further arranged at the middle upper part of the mounting groove 702, and a plurality of hollow grooves 707 are further formed in the bottom of the mounting groove 702. Through the rotation of the soft brush 705 around the outer wall of the protection cylinder 6091, ash removal operation is carried out, dust is prevented from gathering and staying on the soft brush 705, when the soft brush 705 is not used, the fixing plate 704 is driven to move through the contraction of the second electric control telescopic column 703, the soft brush 705 can be contacted with the ash ejection plate 706, and the residual dust on the brush can be shaken out through the up-and-down movement of the soft brush 705, so that the dust falls into the ash receiving box 5 below through the hollowed-out groove 707 to be collected.

Specifically, the method for the controller 2 to judge and generate the alarm instruction and drive the alarm 9 to alarm is as follows:

the controller 2 collects the dust content W, the dust concentration R and the carbon monoxide concentration CO in the smoke in every secondBy the formula->Acquiring a fire risk coefficient G, and associating the fire risk coefficient G in real time with a threshold coefficient preset in the controller 2>When the value of G exceeds the preset threshold, an alarm command is generated and a signal is sent to the alarm 9 for alarming, whereinThe conversion coefficients of smoke, dust, carbon monoxide and carbon dioxide, respectively, and the conversion coefficients and the threshold coefficient can be selected by fitting historical related data in big data and combining experimental data, and are not described in detail herein.

In the above, the dust content, dust concentration, carbon monoxide concentration and carbon dioxide concentration can be obtained by the related collectors in the controller 2, and since these substances are mainly produced when a fire occurs, if only one of them is detected and judged individually, it may be inaccurate, and alarm errors such as smoke can be produced when smoking but the dust content is small, thus the smoke is produced easily by the formulaThe fire hazard coefficient G is obtained, and the fire hazard coefficient G is compared with a preset threshold coefficient by comprehensively judging the data, so that more accurate judgment can be realizedThe occurrence of fire breaks and errors are reduced.

The method for driving the protection mechanism 6 and the cleaning mechanism to carry out ash cleaning operation by the controller 2 according to the detection and analysis of the smoke comprises the following steps:

by the formulaAcquiring a conveying speed value K generated during the first alarm and taking the conveying speed value K as a standard comparison value;

after that, when each fire alarm is finished, the formula is passedAcquiring a value of the delivery rate generated at each alarm>；

By the formulaDetermining the difference in the transport rate->And compares the active rate difference with a preset difference threshold value in the controller 2>Comparison is performed:

if it isIs greater than->The accumulated dust is considered to be more, and at the moment, a driving instruction is generated to drive the driving protection mechanism 6 and the cleaning mechanism to carry out ash cleaning operation;

wherein the method comprises the steps ofTo detect the time from the start to the end of smoke.

In the above, the difference thresholdCan be selected by fitting historical related data in big data and combining experimental data, and is selected by the formula +.>The smoke transmission rate can be obtained when the fire alarm is given for the first time, the accumulated dust amount is the least, the smoke can be used as a comparison value, and the smoke can be used as a formula +.>Acquiring a value of the delivery rate generated at each alarm>Thereby pass->Determining the difference in the transport rate->The difference between them can show the difference in the transmission rate of the smoke into the interior, the greater the difference, i.e. the slower the backward rate is compared with the first time, the more dust is accumulated on the protection mechanism 6, and the difference exceeds the preset difference threshold +.>In this case, it is considered that dust needs to be treated, and a drive command is generated to drive the drive protection mechanism 6 and the cleaning mechanism to perform the dust cleaning operation.

When the smoke detector is used, smoke is in contact with the controller 2 through the opening 4, the controller 2 starts to monitor, at the moment, the controller 2 controls the electric control door 102 to shrink, the four alarms 9 are exposed, the controller 2 analyzes and calculates the smoke, when the generated fire hazard coefficient exceeds a preset threshold coefficient, an alarm signal is sent to the alarms 9 to carry out alarm operation, meanwhile, after each fire is finished, the controller 2 judges whether dust removal operation is needed, when the dust removal operation is needed, the first electric fan 608 and the second electric fan 611 are driven to rotate reversely, and meanwhile, the first micro motor 605 is driven to rotate, and the electric fan is driven to carry out circular motion to carry out dust blowing treatment; then the controller 2 controls the second micro motor 6095 to rotate to drive the rotating plate 6097 to do circular motion, so that dust adhered to the bottom of the protective cylinder 6091 is scraped by the scraping plate 6098; at this time, the second electric control telescopic column 703 also ejects the soft brush 705 out of the mounting groove 702, and when the rotating plate 6097 performs circular motion, the soft brush 705 is also driven to rotate around the outer wall of the protection cylinder 6091, so that ash cleaning operation is performed on the outer wall of the protection cylinder 6091, and cleaned dust falls into the ash receiving box 5 below to be collected; when ash removal is stopped, the first electric control telescopic column 6099 stretches out to drive the push plate 60910 to move downwards, dust accumulated and adhered at the bottom of the protection cylinder 6091 is pushed into the ash receiving box 5, meanwhile, the second electric control telescopic column 703 stretches back and forth to enable the soft brush 705 to be in contact with the ash ejecting plate 706, and residual dust on the brush is shaken out by driving the soft brush 705 to move up and down, so that the dust falls into the ash receiving box 5 below through the hollowed-out groove 707 to be collected.

The foregoing is merely illustrative and explanatory of the principles of the invention, as various modifications and additions may be made to the specific embodiments described, or similar thereto, by those skilled in the art, without departing from the principles of the invention or beyond the scope of the appended claims.

Claims

1. The utility model provides a smog alarm device, includes mounting base (1), its characterized in that, be equipped with in mounting base (1) and carry out analysis and detection's controller (2) to smog, threaded connection has shell (3) on mounting base (1), be equipped with opening (4) on shell (3), the bottom threaded connection of shell (3) has ash receiving box (5), still install protection machanism (6) to the controller (2) in shell (3), be equipped with clearance mechanism on protection machanism (6), still be equipped with four fixed slots (8) on shell (3), be equipped with alarm (9) that are used for reporting to the police in fixed slot (8);

wherein the cleaning mechanism comprises a first cleaning mechanism (609) and a second cleaning mechanism (7);

the controller (2) detects and analyzes the smoke so as to generate corresponding alarm instructions, the alarm (9) is driven to alarm, and meanwhile, the controller (2) drives the protection mechanism (6) and the cleaning mechanism to operate according to the detection and analysis results of the smoke.

2. The smoke alarm device according to claim 1, wherein the protection mechanism (6) comprises a fixing disc (601), the fixing disc (601) is connected with the inside of the installation base (1) through four reinforcing ribs (612) that are provided, the first cleaning mechanism (609) is connected with a circular ring (602) in a threaded manner on the bottom of the fixing disc (601), a circle of end face teeth (603) are arranged on the top of the circular ring (602), a vertical plate (604) is further arranged on the fixing disc (601), a rotating shaft is arranged on the vertical plate (604), a first micro motor (605) is arranged at one end of the rotating shaft, a gear (606) is connected with the other end of the rotating shaft, the gear (606) is meshed with the end face teeth (603), two first installation posts (607) are further arranged on the bottom of the circular ring (602), and a first electric fan (608) is rotationally connected to the bottom of the first installation post (607).

3. The smoke alarm device according to claim 2, wherein a second mounting post (610) is provided on the outer wall of the first mounting post (607), a second electric fan (611) is provided on the end of the second mounting post (610), and the first electric fan (608) and the second electric fan (611) are electrically connected to the controller (2).

4. The smoke alarm device according to claim 2, wherein the first cleaning mechanism (609) comprises a protection cylinder (6091) connected with a fixed disc (601), a plurality of smoke penetrating holes (6092) are formed in the outer wall and the bottom of the protection cylinder (6091), a circular mounting hole (6093) is formed in the center of the bottom of the protection cylinder (6091), a rectangular mounting hole (6094) is formed in one side of the circular mounting hole (6093), a second micro motor (6095) is arranged in the circular mounting hole (6093), a mounting shaft (6096) matched with the circular mounting hole (6093) is arranged at the output end of the second micro motor (6095), a rotating plate (6097) is connected to the mounting shaft (6096), a scraping plate (6098) is arranged on one side of the rotating plate (6097), and the second cleaning mechanism (7) is mounted on the tail end of the scraping plate (6098) and the scraping edge of the scraping plate (6098) and one side of the rectangular mounting hole (6094) are on the same plane.

5. The smoke alarm device according to claim 4, wherein a first electrically controlled telescopic column (6099) is installed in the rectangular installation hole (6094), a push plate (60910) is arranged at the output end of the first electrically controlled telescopic column (6099), and the push plate (60910) is matched with the rectangular installation hole (6094).

6. The smoke alarm device according to claim 4, wherein the second cleaning mechanism (7) comprises a mounting plate (701), one side of the mounting plate (701) close to the protection cylinder (6091) is a cambered surface, a mounting groove (702) is formed in one side of the mounting plate (701) close to the protection cylinder (6091), a second electric control telescopic column (703) is arranged at the bottom of the mounting groove (702), a fixing plate (704) is mounted on the output end of the second electric control telescopic column (703), a plurality of soft brushes (705) are arranged on one side of the fixing plate (704) close to the protection cylinder (6091), and a transversely arranged ash ejection plate (706) is further arranged at the middle upper part of the mounting groove (702).

7. The smoke alarm device according to claim 6, wherein a plurality of hollowed-out grooves (707) are further provided on the bottom of the mounting groove (702).

8. The smoke alarm device according to claim 1, wherein the mounting base (1) is further provided with four control grooves, the four control grooves are respectively arranged at the tops of the four fixing grooves (8), an electric control door (102) is arranged in the control grooves, and a layer of sealing gasket (103) is arranged on the periphery of the electric control door (102).