CN117180671A - Fire-fighting emergency device for dangerous environment and working method thereof - Google Patents

Abstract

The invention provides a fire emergency device in dangerous environment and a working method thereof, wherein the device comprises a magazine and a detection bin, the detection bin is fixedly arranged at the upper end of the magazine, and a detection module is arranged in the detection bin; the upper side of the outer end of the magazine is provided with a jet orifice in a penetrating way, the middle part of the outer end is connected with a limiting mechanism in a sliding way, the bottom of the magazine is connected with a threaded cover in a threaded way, and two aerosol cans are arranged in the magazine; the inner wall of the magazine is provided with a first limiting mechanism which is connected with the limiting mechanism in a matching way; the detection module comprises a temperature sensor, a buzzer, a timer, a gas sensor, a power supply, a dht chip and a penetrating screw rod stepping motor, wherein the dht chip is connected with the power supply, the temperature sensor, the gas sensor, the penetrating screw rod stepping motor and the timer, and the timer is connected with the buzzer. The fire extinguisher can extinguish the fire around the body when the fire fighter is dangerous or unconscious, improve the survival rate of the fire fighter, protect the life safety of the fire fighter to the maximum extent and send a distress signal to the outside.

Description

Fire-fighting emergency device for dangerous environment and working method thereof

Technical Field

The invention relates to the technical field of fire emergency equipment, in particular to a fire emergency device in a dangerous environment and a working method thereof.

Background

The emergency device on the current market only can report to the police, can not rescue to there is great defect, and the help that brings for the firefighter is less relatively, to more and more urban fire protection to and the conflagration in building, thereby design a portable emergency device that not only can report to the police, can also help using the personnel to save oneself, can more effectual protection firefighter or masses wait for the rescue when the danger.

Disclosure of Invention

According to the technical problems, a fire emergency device for dangerous environments and a working method thereof are provided.

The invention adopts the following technical means:

a fire emergency device for a hazardous environment, comprising: the detection bin is fixedly arranged at the upper end of the magazine, and a detection module is arranged in the detection bin; the upper side of the outer end of the bullet bin is provided with a jet orifice in a penetrating way, the middle part of the outer end is connected with a limiting mechanism in a sliding way, the bottom of the bullet bin is connected with a threaded cover in a threaded way, two aerosol cans are arranged in the bullet bin at intervals up and down;

a first limiting mechanism is arranged on the inner wall of the magazine between the two aerosol cans, and is connected with the limiting mechanism in a matched manner and used for limiting and supporting the aerosol cans above;

the detection module comprises a temperature sensor, a buzzer, a timer, a gas sensor, a power supply, a dht chip and a penetrating screw rod stepping motor, wherein the dht chip is electrically connected with the power supply, the input end of the dht chip is electrically connected with the temperature sensor and the gas sensor respectively, the output end of the dht chip is electrically connected with the penetrating screw rod stepping motor, the dht chip is electrically connected with the timer, and the output end of the timer is connected with the buzzer.

Further, the first limiting mechanism comprises a plurality of U-shaped limiting plates which are fixedly connected to the inner wall of the magazine at intervals; the side wall of the magazine is penetrated and provided with a plurality of moving grooves, the moving grooves correspond to the positions of the U-shaped limiting plates, and the limiting mechanism penetrates into the magazine through the moving grooves.

Further, stop gear establishes at the slip ring and a plurality of stopper of magazine outer wall including the cover, a plurality of stopper intervals are fixed at the inner wall of slip ring, and a plurality of stoppers insert to the magazine inside through a plurality of removal grooves and contact with a plurality of U-shaped limiting plates.

Further, the limiting blocks are embedded into the inner grooves of the U-shaped limiting plates, the number of the limiting blocks is equal to that of the U-shaped limiting plates, the sum of the lengths of the limiting blocks and the lengths of the U-shaped limiting plates are equal to the length of the movable groove, and the limiting blocks can slide in the movable groove and the U-shaped limiting plates.

Further, the aerosol tank comprises a tank body, wherein a plurality of limit grooves are formed in the outer end surface of the tank body, and the tank body is installed in the magazine in a mutually matched and positioned mode through the plurality of limit grooves and the plurality of U-shaped limit plates; the number of the plurality of limit grooves is equal to that of the plurality of U-shaped limit plates;

the top of the tank body is provided with an extrusion spray head, the extrusion spray head is provided with an injection head and an extrusion button, the injection head faces the injection port, and the extrusion button is coaxial with the magazine.

Further, the through hole is coaxially formed in the center of the top of the magazine, the through hole is communicated with the inside of the detection magazine, the through screw rod stepping motor is vertically and fixedly arranged at the through hole, a screw rod on the through screw rod stepping motor is coaxial with the through hole, and the through screw rod stepping motor is used for driving the screw rod to move up and down along the central axis of the magazine.

Further, the positions, close to the temperature sensor and the gas sensor, on the magazine are respectively provided with ventilation holes in a penetrating mode.

Further, a manual switch is fixedly installed on the timer, and one end of the manual switch penetrates through the outside of the magazine.

Further, a wireless communication module and a positioning module are arranged on the dht chip, and the wireless communication module is in wireless connection with the external internet of things.

The invention also provides a working method of the fire emergency device in the dangerous environment, which comprises the following steps:

the method comprises the steps of firstly, unscrewing a threaded cover, inserting a first aerosol can into a magazine, mutually matching and positioning a can body with a plurality of U-shaped limiting plates through a plurality of limiting grooves, installing the can body in the magazine, enabling a jet head to face a jet opening, enabling a push button and a through hole to be positioned on the same vertical center line, then grabbing and rotating a sliding circular ring, driving a plurality of limiting blocks to slide out of inner grooves of the plurality of U-shaped limiting plates through corresponding moving grooves, limiting and supporting the bottom of the first aerosol can above, finally inserting a second aerosol can into the magazine for standby, and then fixing the threaded cover at the bottom of the magazine again;

when the intelligent fire extinguishing device is used, external gas and temperature are checked through a temperature sensor and a gas sensor, when high temperature or harmful gas is detected, a signal is sent to a dht chip, the dht chip controls a timer to count time for 30 seconds, a buzzer is controlled to sound for alarming and reminding, if the buzzer is not manually closed within 30 seconds, the dht chip controls a through screw stepping motor to work, the through screw stepping motor drives a screw to downwards extrude a extruding button, so that s-shaped aerosol in a tank body is ejected from an ejection head, the s-shaped aerosol is ejected from the ejection port to extinguish fire around a human body, a distress signal is sent to the outside through a wireless communication module, and an external far-end Internet of things system knows the approximate position of equipment and the temperature and the condition of the harmful gas at the corresponding position in real time for timely rescue;

and thirdly, if a manual switch is manually pressed to close the buzzer, the device can be used as a common fire extinguisher, a user unscrews the threaded cover, takes out the aerosol tank to perform manual operation fire extinguishing, and after the alarm is closed, the dht chip can restart the alarm after a period of time, so that the safety is ensured to the maximum extent, and the danger that the device cannot provide effective protection due to severe situation and syncope after the closing is avoided.

Compared with the prior art, the invention has the following advantages:

1. the fire-fighting emergency device in the dangerous environment and the working method thereof can extinguish the fire around the body when the fire fighter is dangerous or in coma, improve the survival rate of the fire fighter, protect the life safety of the fire fighter to the maximum extent and send a distress signal to the outside.

2. According to the fire emergency device for the dangerous environment and the working method thereof, provided by the invention, the temperature sensor and the gas sensor can be used for detecting the outside gas and the temperature, when the high temperature or harmful gas is detected, a signal can be sent to the dht chip, the dht chip controls the timer to count time for 30s, and the buzzer is controlled to sound for alarming and reminding.

3. According to the fire emergency device for the dangerous environment and the working method thereof, if the buzzer is not manually closed within 30 seconds, the dht chip controls the through screw rod stepping motor to work, the through screw rod stepping motor drives the screw rod to downwards extrude the extrusion button, so that the s-shaped aerosol in the tank body is ejected from the ejection head, the s-shaped aerosol is ejected from the ejection port to extinguish the fire around a human body, a distress signal is sent to the outside through the wireless communication module, and the external far-end Internet of things system knows the approximate position of the equipment and the temperature and the condition of harmful gas at the corresponding position in real time, so that rescue is performed in time.

4. According to the fire emergency device for the dangerous environment and the working method thereof, if the manual switch is manually pressed to close the buzzer, the fire emergency device can be used as a common fire extinguisher, a user unscrews the threaded cover, takes out the aerosol tank to conduct manual operation to extinguish fire, and after the alarm is closed, the dht chip can restart the alarm after a period of time, so that the safety is ensured to the greatest extent, and the danger that the device cannot provide effective protection due to syncope caused by severe situation after the closing is avoided.

5. According to the fire emergency device for the dangerous environment and the working method thereof, provided by the invention, the upper aerosol tank can be positioned and installed in the bullet bin through the mutual matching of the plurality of limiting grooves and the plurality of U-shaped limiting plates, and the second aerosol tank is inserted below the aerosol tank for standby.

Based on the reasons, the invention can be widely popularized in the fields of fire emergency and the like.

Drawings

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

FIG. 1 is a schematic view of the whole of the present invention.

FIG. 2 is a schematic view of the interior of the detection chamber of the present invention.

FIG. 3 is a schematic top view of the interior of the test chamber of the present invention.

FIG. 4 is a schematic view of the cross-section of the interior of the magazine and test chamber of the present invention.

FIG. 5 is an enlarged schematic view of the invention at A.

Fig. 6 is a schematic top view of the limiting mechanism of the present invention.

FIG. 7 is a schematic view of a U-shaped limiting plate according to the present invention.

Fig. 8 is a schematic perspective view of a limiting mechanism according to the present invention.

Fig. 9 is a schematic view of an aerosol canister of the present invention.

In the figure: 1. a magazine; 2. a detection bin; 3. a limiting mechanism; 4. a screw cap; 5. an aerosol canister; 11. an ejection port; 12. a moving groove; 13. a U-shaped limiting plate; 21. a temperature sensor; 22. a buzzer; 23. a timer; 231. a manual switch; 24. a gas sensor; 25. a power supply; 26. dht chip; 27. a stepping motor penetrating the screw rod; 31. a sliding ring; 32. a limiting block; 51. a tank body; 52. a limit groove; 53. an ejection head; 54. the push button is pressed.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses. 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.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present invention. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise. Meanwhile, it should be clear that the dimensions of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present invention, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present invention and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present invention: the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present invention.

Example 1

The invention provides a fire emergency device in a dangerous environment, which is provided by fig. 1-5, and is a fire emergency device based on the dangerous environment of the internet of things, and comprises a bullet bin 1, wherein a detection bin 2 is fixedly arranged at the upper end of the bullet bin 1, a detection module is arranged in the detection bin 2, an injection port 11 is arranged on the upper side of the outer end of the bullet bin 1 in a penetrating way, a limit mechanism 3 is slidably connected in the middle of the outer end of the bullet bin 1, a threaded cover 4 is connected to the bottom of the bullet bin 1 in a threaded way, two aerosol cans 5 are arranged in the bullet bin 1, a plurality of U-shaped limit plates 13 are uniformly and fixedly connected between the two aerosol cans 5, a plurality of U-shaped limit plates 13 of the bullet bin 1 are arranged at positions, a plurality of U-shaped limit plates 13 of the bullet bin 1 are respectively penetrated and provided with a movable groove 12, the detection module comprises a temperature sensor 21, a buzzer 22, a timer 23, a gas sensor 24, a power supply 25 and a dht chip 26 (the current chip can be adopted, the model is dht) and a lead screw motor 27 are penetrated, the d chip 26 is electrically connected with the power supply 25 and the output of the air sensor 21 and the air sensor is electrically connected with the air sensor 21, the air sensor 26 is electrically connected with the air sensor dht, and the output of the air sensor is electrically connected with the air sensor 21, and the air sensor 26 is electrically connected with the air sensor 35, and the air sensor 26 is electrically connected with the air sensor 21 and the 13. The center of the top of the magazine 1 is provided with a through hole which is communicated with the inside of the detection magazine 2, and a through screw stepping motor 27 is vertically and fixedly arranged at the through hole; the position of the magazine 1, which is close to the temperature sensor 21 and the gas sensor 24, is provided with ventilation holes in a penetrating way; the timer 23 is fixedly provided with a manual switch 231, and the manual switch 231 is carried out through the magazine 1; the dht chip 26 is provided with a wireless communication module and a positioning module, and the wireless communication module is in wireless connection with the external Internet of things;

during installation, the screw cap 4 is unscrewed, the first aerosol can 5 is inserted into the magazine 1, the can body 51 is mutually matched with the plurality of U-shaped limiting plates 13 through the plurality of limiting grooves 52 to be positioned and installed in the magazine 1, the injection head 53 faces the injection port 11, the extrusion button 54 and the through hole are positioned on the same vertical center line, then the sliding ring 31 is grabbed to rotate, the corresponding moving groove 12 drives the plurality of limiting blocks 32 to slide out of the inner grooves of the plurality of U-shaped limiting plates 13 to limit the bottom of the first aerosol can 5 above, finally the second aerosol can 5 is inserted into the magazine 1 for standby, and then the screw cap 4 is fixed at the bottom of the magazine 1 in a threaded manner.

In this embodiment, the limiting mechanism 3 shown in fig. 6-8 includes a sliding ring 31 and limiting blocks 32, the inner wall of the sliding ring 31 is fixed with a plurality of limiting blocks 32, and the limiting blocks 32 penetrate into the magazine 1 through a plurality of moving grooves 12 to contact with a plurality of U-shaped limiting plates 13; the limiting blocks 32 can be embedded into the inner grooves of the U-shaped limiting plates 13, the number of the limiting blocks 32 is equal to that of the U-shaped limiting plates 13, and the sum of the lengths of the limiting blocks 32 and the U-shaped limiting plates 13 is equal to that of the moving groove 12;

the sliding ring 31 is grabbed and rotated, and the corresponding moving grooves 12 drive the plurality of limiting blocks 32 to slide out of the inner grooves of the plurality of U-shaped limiting plates 13 to limit and support the bottom of the first aerosol can 5 above, so that the screw rod is conveniently driven by the screw rod stepping motor 27 to downwards extrude the extruding button 54.

In this embodiment, as shown in fig. 9, the aerosol can 5 includes a can body 51, a plurality of limiting grooves 52 are formed on the outer end surface of the can body 51, an extrusion nozzle is disposed on the top of the can body 51, and an injection head 53 and an extrusion button 54 are disposed on the extrusion nozzle; the number of the plurality of limiting grooves 52 is equal to that of the plurality of U-shaped limiting plates 13, and the plurality of limiting grooves 52 are matched with the U-shaped limiting plates 13; the tank body 51 is positioned and installed in the magazine 1 through the mutual matching of the plurality of limiting grooves 52 and the plurality of U-shaped limiting plates 13, wherein the position of the jet head 53 facing the jet orifice 11 is provided with the extrusion button 54 and the through hole on the same vertical center line;

the dht chip 26 controls the operation of the through-screw stepping motor 27, and the through-screw stepping motor 27 drives the screw to press the pressing button 54 downwards, so that the s-shaped aerosol in the tank 51 is ejected from the ejection head 53, and the s-shaped aerosol is ejected from the ejection port 11 to extinguish the fire around the human body.

In this embodiment: a through-screw stepper motor 27 of model 86HA80 was used.

The working principle of the invention is as follows:

during installation, the screw cap 4 is unscrewed, the first aerosol can 5 is inserted into the magazine 1, the can body 51 is mutually matched with the plurality of U-shaped limiting plates 13 through the plurality of limiting grooves 52 to be positioned and installed in the magazine 1, the injection head 53 faces the injection port 11, the extrusion button 54 and the through hole are positioned on the same vertical center line, then the sliding ring 31 is grabbed to rotate, the plurality of limiting blocks 32 are driven to slide out of the inner grooves of the plurality of U-shaped limiting plates 13 through the corresponding moving grooves 12, the bottom of the upper first aerosol can 5 is limited and supported, the second aerosol can 5 is finally inserted into the magazine 1 for standby, and then the screw cap 4 is fixed at the bottom of the magazine 1 in a threaded manner;

when the intelligent fire extinguishing device is used, the temperature sensor 21 and the gas sensor 24 are used for detecting outside gas and temperature, when high temperature or harmful gas is detected, a signal is sent to the dht chip 26, the dht chip 26 controls the timer 23 to count time for 30s, the buzzer 22 is controlled to sound for warning, if the buzzer 22 is not closed manually within 30 seconds, the dht chip 26 controls the through screw stepping motor 27 to work, the through screw stepping motor 27 drives the screw to press the pressing button 54 downwards, so that the s-shaped aerosol in the tank body 51 is sprayed out from the spraying head 53, the s-shaped aerosol is sprayed out from the spraying port 11 to extinguish the fire around a human body, a distress signal is sent out to the outside through the wireless module, and the remote Internet of things system knows the approximate position of the equipment and the temperature and the condition of the harmful gas at the corresponding position in real time for rescue.

If the manual switch 231 is manually pressed to close the buzzer 22, the device is used as a common fire extinguisher, a user unscrews the screw cap 4, takes out the aerosol tank 5 to perform manual operation to extinguish the fire, and after the device is closed and alarming, the device can be restarted for ten minutes (the self-defined time) (the long-press switch can be immediately reset, so that the emergency equipment can be used for guaranteeing the safety of the disaster-stricken people), and the dht chip 26 can restart the alarm, so that the safety is guaranteed to the greatest extent, and the danger that the device cannot provide effective protection due to syncope caused by severe situation after the device is closed is avoided.

By the device, fire can be extinguished around the body when the firefighter is dangerous or in coma, the survival rate of the firefighter is improved, the life safety of the firefighter is protected to the greatest extent, and a distress signal is sent to the outside.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.

Claims (10)

1. A fire emergency device for a hazardous environment, comprising: the detection bin (2) is fixedly arranged at the upper end of the magazine (1), and a detection module is arranged in the detection bin (2); the upper side of the outer end of the magazine (1) is provided with a jet orifice (11) in a penetrating way, the middle part of the outer end is connected with a limiting mechanism (3) in a sliding way, the bottom of the magazine is connected with a threaded cover (4) in a threaded way, two aerosol cans (5) are arranged in the magazine at intervals from top to bottom;

a first limiting mechanism is arranged on the inner wall of the magazine (1) between the two aerosol cans (5), and is connected with the limiting mechanism (3) in a matched manner and used for limiting and supporting the aerosol cans (5) above;

the detection module comprises a temperature sensor (21), a buzzer (22), a timer (23), a gas sensor (24), a power supply (25), a dht chip (26) and a penetrating screw rod stepping motor (27), wherein the dht chip (26) is electrically connected with the power supply (25), the input end of the dht chip (26) is electrically connected with the temperature sensor (21) and the gas sensor (24) respectively, the output end of the dht chip (26) is electrically connected with the penetrating screw rod stepping motor (27), the dht chip (26) is electrically connected with the timer (23), and the output end of the timer (23) is connected with the buzzer (22).

2. The fire emergency device for dangerous environments according to claim 1, wherein the first limiting mechanism comprises a plurality of U-shaped limiting plates (13), and the plurality of U-shaped limiting plates (13) are fixedly connected to the inner wall of the magazine (1) at intervals; the side wall of the magazine (1) is penetrated and provided with a plurality of moving grooves (12), the plurality of moving grooves (12) correspond to the positions of the plurality of U-shaped limiting plates (13), and the limiting mechanism (3) penetrates into the magazine (1) through the plurality of moving grooves (12).

3. The fire emergency device for dangerous environments according to claim 2, wherein the limiting mechanism (3) comprises a sliding circular ring (31) sleeved on the outer wall of the magazine (1) and a plurality of limiting blocks (32), the limiting blocks (32) are fixed on the inner wall of the sliding circular ring (31) at intervals, and the limiting blocks (32) are inserted into the magazine (1) through a plurality of moving grooves (12) to be in contact with a plurality of U-shaped limiting plates (13).

4. A fire emergency device for dangerous environments according to claim 3, wherein the limiting blocks (32) are embedded into the inner grooves of the U-shaped limiting plates (13), the number of the limiting blocks (32) is equal to that of the U-shaped limiting plates (13), the sum of the lengths of the limiting blocks (32) and the U-shaped limiting plates (13) is equal to that of the moving groove (12), and the limiting blocks (32) can slide in the moving groove (12) and the U-shaped limiting plates (13).

5. The fire emergency device for dangerous environments according to claim 2, wherein the aerosol tank (5) comprises a tank body (51), a plurality of limit grooves (52) are formed in the outer end surface of the tank body (51), and the tank body (51) is installed in the magazine (1) in a mutually matched and positioned mode through the plurality of limit grooves (52) and the plurality of U-shaped limit plates (13); the number of the plurality of limit grooves (52) is equal to that of the plurality of U-shaped limit plates (13);

the top of the tank body (51) is provided with an extrusion spray head, an injection head (53) and an extrusion button (54) are arranged on the extrusion spray head, the injection head (53) faces the injection port (11) and the extrusion button (54) is coaxial with the magazine (1).

6. The fire emergency device for dangerous environments according to claim 1, wherein a through hole is coaxially formed in the center of the top of the magazine (1), the through hole is communicated with the inside of the detection magazine (2), the through screw stepping motor (27) is vertically and fixedly arranged at the through hole, a screw on the through screw stepping motor (27) is coaxial with the through hole, and the through screw stepping motor (27) is used for driving the screw to move up and down along the central axis of the magazine (1).

7. Fire emergency device for dangerous environment according to claim 1, characterized in that the positions of the magazine (1) close to the temperature sensor (21) and the gas sensor (24) are respectively provided with ventilation holes.

8. The fire emergency device for dangerous environments according to claim 1, wherein a manual switch (231) is fixedly arranged on the timer (23), and one end of the manual switch (231) penetrates to the outside of the magazine (1).

9. The fire emergency device of claim 1, wherein the dht chip (26) is provided with a wireless communication module and a positioning module, and the wireless communication module is wirelessly connected with an external internet of things.

10. A method of operating a fire emergency device for a hazardous environment according to any one of claims 1 to 9, comprising the steps of:

during installation, the screw cap (4) is unscrewed, a first aerosol can (5) is inserted into the magazine (1), the can body (51) is mutually matched with the plurality of U-shaped limiting plates (13) through the plurality of limiting grooves (52) to be positioned and installed in the magazine (1), the injection head (53) faces the injection port (11), the extrusion button (54) and the through hole are positioned on the same vertical center line, then the sliding circular ring (31) is grabbed and rotated, the corresponding moving groove (12) drives the plurality of limiting blocks (32) to slide out of the inner grooves of the plurality of U-shaped limiting plates (13), the bottom of the first aerosol can (5) above is limited and supported, finally the second aerosol can (5) is inserted into the magazine (1) for standby, and then the screw cap (4) is screwed and fixed at the bottom of the magazine (1);

when the intelligent fire extinguishing device is used, external gas and temperature are checked through the temperature sensor (21) and the gas sensor (24), when high temperature or harmful gas is detected, a signal is sent to the dht chip (26), the dht chip (26) controls the timer (23) to count time for 30 seconds, the buzzer (22) is controlled to sound for alarming, if the buzzer (22) is not closed manually within 30 seconds, the dht chip (26) controls the through-screw stepping motor (27) to work, the through-screw stepping motor (27) drives the screw to downwards extrude the extruding button (54), so that s-shaped aerosol in the tank body (51) is ejected from the ejection port (11) to extinguish the fire around a human body, and a distress signal is sent to the outside through the wireless communication module, and the external far-end Internet of things system knows the approximate position of the equipment and the temperature and the condition of the harmful gas at the corresponding position in real time for rescuing;

and thirdly, if a manual switch (231) is manually pressed to close the buzzer (22), the device is used as a common fire extinguisher, a user unscrews the threaded cover (4), takes out the aerosol tank (5) to extinguish the fire by manual operation, and after the alarm is closed, the dht chip (26) can restart the alarm after a period of time, so that the safety is ensured to the maximum extent, and the danger that the device cannot provide effective protection due to syncope caused by severe situation after the closing is avoided.