Explosion-proof emergency marker lamp and control method

Abstract

The invention discloses an anti-explosion emergency marker lamp and a control method, and relates to the technical field of anti-explosion emergency lamps, the marker lamp comprises an anti-explosion cover, a connecting piece is arranged on one side of the anti-explosion cover, a main emergency assembly is arranged between the anti-explosion cover and the connecting piece, and an auxiliary emergency assembly is arranged between the anti-explosion cover and the main emergency assembly; the main emergency assembly comprises a power supply part, and the power supply part is used for emergency power supply illumination when an external power supply cannot normally supply power; the auxiliary emergency assembly comprises an electricity sensing part and an emergency part. During use, diphenyl oxalate and hydrogen peroxide in the injection pipe are conveyed into the reaction tank in the anti-explosion piece through the connecting pipe through mutual cooperation of the elastic piece, the electromagnet and other devices, and when diphenyl oxalate and hydrogen peroxide make contact with each other in the reaction tank and are mixed, carbon dioxide and water are generated, and visible light is released; therefore, the transparent explosion-proof piece emits light outwards to replace the main emergency assembly to provide illumination and identification for personnel evacuation.

Description

Technical Field

[0001] The invention relates to the technical field of explosion-proof emergency lights, and in particular to an explosion-proof emergency sign light and a control method thereof. Background Art

[0002] Explosion-proof emergency sign lights are special lighting equipment designed for hazardous environments and are widely used in high-risk fields such as petroleum and chemical industries. They have significant technical features and adopt a flameproof structure design to ensure safe operation in flammable and explosive environments. They can immediately start lighting when the main power is cut off, providing key guidance for personnel evacuation.

[0003] Chinese patent application number 201220644272.1 discloses a fire emergency light. A light-controlled switch and a light sensor are installed on the main body of the emergency light. When a power outage occurs, if the light is sufficient, the light will not be illuminated; if the light is poor, the light sensor will work, the light-controlled switch will be turned on, and the light will be illuminated, thus achieving energy saving and being able to start the lighting according to the light intensity.

[0004] The Chinese patent application number 201120299432.9 discloses a fire emergency light with a smoke alarm, which includes a main body with a lighting lamp, and a smoke alarm is arranged on the main body; the smoke alarm includes an induction sensor and a speaker, and an opening is arranged on the main body, the induction sensor is placed in the opening, and a small fan is arranged on the opening; a power failure alarm module is also arranged to be connected to the speaker of the smoke alarm, and a conversion switch is also arranged. Since the smoke alarm is arranged on the fire emergency light, the integration of fire protection products is improved and the cost of fire protection engineering is reduced. In addition, when the power is off, the alarm sounds at the same time as the lighting is started, reminding personnel to quickly and effectively get out of danger, and implement fire extinguishing or escape and self-rescue in time to minimize the loss.

[0005] Based on the above technology, it can be known that when an unexpected explosion or fire occurs and the marker light is working, since the electrical energy stored in the marker light is limited, and when the explosion or fire is not effectively extinguished for a long time, the power in the marker light will be exhausted, and it will be impossible to effectively guide the people who have not been evacuated. In addition, the smoke and dust caused by the explosion or fire can easily block the marker light, making it impossible for people to determine the location of the marker light and take shelter according to the marker light.

[0006] Therefore, it is necessary to invent an explosion-proof emergency sign light and a control method to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide an explosion-proof emergency sign light and a control method thereof to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned objectives, the present invention provides an explosion-proof emergency sign light, comprising an explosion-proof cover, a connecting piece is provided on one side of the explosion-proof cover, a main emergency component is provided between the explosion-proof cover and the connecting piece, and a secondary emergency component is provided between the explosion-proof cover and the main emergency component; the main emergency component comprises a power supply unit, and the power supply unit is used for emergency power supply and lighting when an external power supply cannot provide normal power supply; the secondary emergency component comprises an inductive unit and an emergency unit, the inductive unit is electrically connected to the main emergency component, and the emergency unit is connected to the main emergency component through the inductive unit; the inductive unit is used to detect the electric energy of the main emergency component, and when the main emergency component stops working due to insufficient electric energy, the emergency unit replaces the main emergency component for lighting and identification.

[0009] Preferably, the inductive part includes an electromagnet, and a plurality of the electromagnets are arranged in a mirror-image distribution on both sides of the power supply part and are electrically connected to the power supply part. An end of the electromagnet away from the power supply part is fixedly connected to an elastic part, and an end of the elastic part away from the electromagnet is fixedly connected to a magnetic part. When the electromagnet is energized and generates magnetism, it can overcome the elastic force of the elastic part and be magnetically attracted to the magnetic part.

[0010] Preferably, the emergency part comprises a piston rod, the piston rod is fixedly connected to one end of the magnetic part away from the elastic part, an injection tube is sleeved on the outer side of the piston rod, and the piston rod is sealingly and slidably connected to the injection tube.

[0011] Preferably, the outside of the injection tube is wrapped with multiple layers of thermal insulation, and the thermal insulation includes but is not limited to materials with high-temperature thermal insulation function such as aluminum silicate fiber felt. A plurality of support members for support are arranged in a linear array on the outside of each thermal insulation. A plurality of injection tubes located on one side of the power supply part are filled with a first reaction liquid, and a plurality of injection tubes located on the other side of the power supply part are filled with a second reaction liquid. The first reaction liquid and the second reaction liquid can generate visible light after mixing.

[0012] Preferably, a connecting tube is provided at the end of the injection tube away from the piston rod, and the end of the connecting tube away from the injection tube passes through the explosion-proof cover and is connected to the explosion-proof component. The explosion-proof component is embedded in the explosion-proof cover, and a reaction tank for reacting the solution in the injection tube is opened in the explosion-proof component. The explosion-proof component is made of transparent explosion-proof material.

[0013] Preferably, the explosion-proof cover is located above the explosion-proof component and is provided with an air collecting groove connected to the reaction tank, one side of the air collecting groove is fixedly connected to a throttle valve, and a one-way pressure valve is provided at the connection between the air collecting groove and the throttle valve, and a plurality of air whistles are arranged in an array at one end of the explosion-proof cover close to the explosion-proof component.

[0014] Preferably, a hanging assembly is provided above the explosion-proof cover, and the hanging assembly comprises a hanging bracket and hanging screws, and the marker light is fixed to the wall through the hanging assembly.

[0015] Preferably, the main emergency component includes a signboard and a power supply unit for powering the auxiliary emergency component and the signboard, the power supply unit includes a rectifier, an inverter and a battery pack, when the sign light is connected to an external power supply and powered on normally, the power supply unit charges the battery pack, when the sign light is connected to an external power supply but cannot be powered on normally, the power supply unit releases the electric energy in the battery pack to power the sign light and the reciprocating drive component.

[0016] Preferably, the signboard comprises an electronically controlled display screen and a connecting frame, the signboard is fixedly connected to the inside of the explosion-proof cover by bolts, and a sealing strip is provided on the signboard.

[0017] In another aspect, the present invention provides a method for controlling an explosion-proof emergency sign light, comprising the following steps: S1. Fixed installation: fixing the sign light on the wall through the auxiliary emergency component; S2, connect the circuit, and electrically connect the external circuit to the main emergency component; S3, storing electric energy through the main emergency component; S4. When the external circuit cannot normally supply power to the sign light, the main emergency component releases the stored electric energy so that the main emergency component provides emergency guidance for personnel evacuation; S5. When the main emergency component is short of power, the inductive unit controls the emergency unit to replace the main emergency component for lighting identification, and cools the explosion-proof cover at the same time.

[0018] Technical effects and advantages of the present invention: 1. When in use, the present invention cooperates with the elastic member and the electromagnet and other devices, so that the magnetic member drives the piston rod to move in the direction of the injection tube, and the first reaction liquid and the second reaction liquid in the injection tube are transported to the reaction tank in the explosion-proof member through the connecting pipe. When the first reaction liquid and the second reaction liquid contact and mix in the reaction tank, carbon dioxide and water are generated and visible light is released, so that the transparent explosion-proof member emits light outward, replacing the main emergency component to provide lighting and identification for personnel evacuation.

[0019] 2. The present invention uses elastic parts, electromagnets and other devices to make diphenyl oxalate and hydrogen peroxide react, and forms a high-pressure mixed gas according to the characteristics of gas thermal expansion and contraction. On the one hand, when the gas passes through the throttle valve, the high-pressure gas becomes low-pressure gas. In this process, the gas absorbs heat, increases internal energy, and reduces the surrounding temperature, thereby achieving a second-order cooling of the temperature in the explosion-proof cover, avoiding the problem of gradual increase in temperature in the explosion-proof cover causing secondary fire or explosion; on the other hand, through the whistle set on the explosion-proof cover, the gas will move to the outside of the explosion-proof cover through the whistle. In this process, the gas will push the gas to contact with the film in the whistle through the internal and external air pressure difference and cause the film to vibrate, thereby making a sound, providing auditory guidance to the crowd that has not been evacuated, thereby effectively avoiding the problem of excessive smoke in the air in a fire scene, resulting in the light emitted by the marker light being blocked and unable to effectively guide the personnel.

[0020] 3. The present invention uses an elastic member, an electromagnet and other devices to make diphenyl oxalate and hydrogen peroxide react. When the gas in the explosion-proof cover is continuously transmitted to the outside through the whistle under the action of air pressure, since the gas in the explosion-proof cover is mostly carbon dioxide generated by the reaction of diphenyl oxalate and hydrogen peroxide, the external area of ​​the device can be extinguished by the ejected carbon dioxide. At the same time, the ejected carbon dioxide gas can blow away the smoke covering the external area of ​​the device, so that it is convenient for personnel to find the device and evacuate according to the identification of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention being disassembled; Figure 3 It is a schematic diagram of another angle of the disassembled structure of the overall structure of the present invention; Figure 4 It is a schematic diagram of the connection structure between the power supply part and the electromagnet of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the organization at A in the middle; Figure 6 A half-section schematic diagram of the internal structure of the explosion-proof cover of the present invention; Figure 7 For the present invention Figure 6 Schematic diagram of the mechanism structure at B in the middle.

[0022] In the figure: 1. explosion-proof cover; 2. suspension assembly; 3. main emergency assembly; 31. signboard; 32. power supply unit; 4. connector; 5. auxiliary emergency assembly; 51. inductive unit; 511. electromagnet; 512. elastic member; 513. magnetic member; 52. emergency unit; 521. piston rod; 522. injection tube; 523. heat insulation member; 524. support member; 525. connecting pipe; 526. explosion-proof member; 527. air collecting tank; 528. throttle valve; 6. whistle. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Embodiment 1, as Figure 1-7 As shown, the present invention provides an explosion-proof emergency sign light, including an explosion-proof cover 1, a connecting piece 4 is provided on one side of the explosion-proof cover 1, and a main emergency component 3 is provided between the explosion-proof cover 1 and the connecting piece 4. By providing the connecting piece 4 on one side of the explosion-proof cover 1 and fixing the connecting piece 4 with the explosion-proof cover 1 by means of bolts or the like, the explosion-proof cover 1 is sealed, and the main emergency component 3 arranged in the explosion-proof cover 1 is isolated from the outside air, so as to prevent the electric spark generated by the device from contacting with the outside gas and causing an explosion when working in an inflammable and explosive place.

[0025] A suspension component 2 is provided above the explosion-proof cover 1. The suspension component 2 includes a suspension bracket and a suspension screw. The suspension bracket is fixedly installed above the explosion-proof cover 1, and a threaded groove matched with the suspension screw is opened in the middle of the suspension bracket. The marker light is fixed to the wall through the suspension component 2.

[0026] The main emergency component 3 includes a signboard 31 and a power supply unit 32 for powering the signboard 31. The power supply unit 32 includes a rectifier, an inverter and a battery pack. When the sign light is connected to an external power supply and powered on normally, the power supply unit 32 charges the battery pack. When the sign light is connected to an external power supply but cannot be powered on normally, the power supply unit 32 releases the electric energy in the battery pack to power the sign light.

[0027] The signboard 31 includes an electronically controlled display screen and a connecting frame. The signboard 31 is fixedly connected to the inside of the explosion-proof cover 1 by bolts, and a sealing strip is provided on the signboard 31. By fixing multiple sealing strips around the signboard 31, when the signboard 31 is fixed to the explosion-proof cover 1, the gap between the signboard 31 and the explosion-proof cover 1 is sealed by the sealing strip, thereby preventing external gas from entering the explosion-proof cover 1. At the same time, through the setting of the electronically controlled display screen, the indication information on the signboard 31 can be remotely changed, thereby guiding personnel according to different situations.

[0028] The explosion-proof cover 1 is also provided with threaded rods and expansion tubes. When the marker light needs to be fastened to the wall, a hole is first punched on the wall, and then the connecting piece 4 is fitted to the wall, and the connecting piece 4 is fixed to the wall through the threaded rods and expansion tubes, and the explosion-proof cover 1 is fixedly installed on the connecting piece 4, wherein a plurality of sealing strips are fixedly installed at the connection between the connecting piece 4 and the explosion-proof cover 1, thereby realizing a fixed connection between the connecting piece 4 and the explosion-proof cover 1.

[0029] Embodiment 2, based on the above embodiments, when an unexpected explosion or fire occurs and the marker light is working, since the electrical energy stored in the marker light is limited, and when the explosion or fire is not effectively extinguished for a long time, the power in the marker light will be exhausted, and it will be impossible to effectively guide the personnel who have not been evacuated, and the smoke and dust caused by the explosion or fire will easily block the marker light, making it impossible for personnel to determine the location of the marker light and take shelter according to the marker light.

[0030] Therefore, in order to solve the above technical problems, the device also includes: a secondary emergency component 5 is provided on the connecting member 4, the secondary emergency component 5 includes an inductive part 51 and an emergency part 52, the inductive part 51 is electrically connected to the main emergency component 3, and the emergency part 52 is connected to the main emergency component 3 through the inductive part 51, the inductive part 51 is used to detect the electric energy of the main emergency component 3, when the main emergency component 3 stops working due to insufficient electric energy, the emergency part 52 replaces the main emergency component 3 for lighting identification.

[0031] The inductive part 51 includes an electromagnet 511, and a plurality of electromagnets 511 are arranged in a mirror image on both sides of the power supply part 32 and are electrically connected to the power supply part 32. An elastic member 512 is fixedly connected to one end of the electromagnet 511 away from the power supply part 32, and a magnetic member 513 is fixedly connected to one end of the elastic member 512 away from the electromagnet 511. When the electromagnet 511 is energized and generates magnetism, it can overcome the elastic force of the elastic member 512 and magnetically attract the magnetic member 513. By electrically connecting the electromagnet 511 to the power supply part 32, the electromagnet 511 is driven by the power supply part 32. The elastic force of the elastic member 512 will push the magnetic member 513 to move in the direction of the electromagnet 511, so that the emergency unit 52 can work and replace the main emergency unit 3 to continue the lighting operation.

[0032] It should be noted that when the main emergency component 3 and the external power supply maintain power supply, the external power supply will also supply power to the electromagnet 511 at the same time, so that the electromagnet 511 can still magnetically adsorb the magnetic part 513 under normal conditions.

[0033] The emergency part 52 includes a piston rod 521, which is fixedly connected to one end of the magnetic part 513 away from the elastic part 512. An injection tube 522 is sleeved on the outer side of the piston rod 521. The piston rod 521 and the injection tube 522 are sealed and slidably connected. By fixing the magnetic part 513 and the piston rod 521, when the electromagnet 511 loses its magnetism, the elastic force of the elastic part 512 will push the magnetic part 513 to move in a direction away from the electromagnet 511, and push the piston rod 521 to move in the direction of the injection tube 522, thereby pushing the solution in the injection tube 522 outward.

[0034] The outside of the injection tube 522 is wrapped with a multi-layer heat insulating member 523, which includes but is not limited to a material with high-temperature heat insulating function such as aluminum silicate fiber felt. A plurality of support members 524 for support and fixation are arranged in a linear array on the outside of each heat insulating member 523. The first reaction liquid is filled in the plurality of injection tubes 522 located on one side of the power supply unit 32; the second reaction liquid is filled in the plurality of injection tubes 522 located on the other side of the power supply unit 32. The first reaction liquid and the second reaction liquid can generate visible light after mixing. Specifically, the first reaction liquid can be a hydrogen peroxide solution, and the second reaction liquid can be a diphenyl oxalate solution. When the two are mixed, they react and generate visible light. By wrapping a multi-layer insulation member 523 on the outside of the injection tube 522, the device is prevented from reacting the solution in the injection tube 522 at high temperature due to excessively high external temperature, thereby further improving the stability of the device when used in a high temperature environment. At the same time, when the hydrogen peroxide solution and the diphenyl oxalate solution in the injection tube 522 are mixed, they will emit light, thereby replacing the main emergency component 3 to continue to illuminate and identify personnel.

[0035] It should be noted that the reaction process of hydrogen peroxide solution and diphenyl oxalate solution is as follows: Reaction start: When diphenyl oxalate and hydrogen peroxide (hydrogen peroxide) are mixed, the oxidizing property of hydrogen peroxide causes diphenyl oxalate to undergo an oxidation reaction. Intermediate product generation: During the reaction, an intermediate product called 1,2-dioxetanedione is generated. Energy transfer: The intermediate product transfers energy to the dye molecule, causing it to enter an excited state. Light energy generation: When the dye molecule falls back from the excited state to the ground state, it releases energy in the form of light, generating visible light.

[0036] In the above reaction, diphenyl oxalate and hydrogen peroxide react to generate carbon dioxide and water, while releasing energy, which is then transferred to the fluorescent dye molecules, causing the dye molecules to release fluorescence. This reaction is a common fluorescent reaction in the prior art and will not be described in detail here.

[0037] A connecting pipe 525 is provided at one end of the injection tube 522 away from the piston rod 521, and the end of the connecting pipe 525 away from the injection tube 522 passes through the explosion-proof cover 1 and is connected with the explosion-proof component 526. The explosion-proof component 526 is embedded in the explosion-proof cover 1, and a reaction tank for reacting the solution in the injection tube 522 is provided in the explosion-proof component 526. The explosion-proof component 526 is made of transparent explosion-proof material. The explosion-proof cover 1 is located above the explosion-proof component 526 and is provided with an air collecting tank 527 connected with the reaction tank. A throttle valve 528 is fixedly connected to one side of the air collecting tank 527, and a one-way pressure valve is provided at the connection between the air collecting tank 527 and the throttle valve 528. A plurality of air whistles 6 are arranged in an array at one end of the explosion-proof cover 1 close to the explosion-proof component 526.

[0038] During use, when the main emergency component 3 has been used for emergency lighting for a long time and its internal power supply part 32 can no longer provide power, the electromagnet 511 will not be able to maintain its magnetism due to the disappearance of power. In this state, the elastic member 512 will release its elastic force to push the magnetic member 513 to move away from the electromagnet 511, so that the magnetic member 513 drives the piston rod 521 to move in the direction of the injection tube 522, and the diphenyl oxalate and hydrogen peroxide in the injection tube 522 are transported to the reaction tank in the explosion-proof component 526 through the connecting pipe 525. When the diphenyl oxalate and hydrogen peroxide contact and mix in the reaction tank, carbon dioxide and water will be generated and visible light will be released, so that the transparent explosion-proof component 526 will emit light outward, replacing the main emergency component 3 to provide lighting and identification for personnel evacuation.

[0039] Since the device works in high-temperature places such as fire or explosion, the indoor temperature is high in this environment, and the high temperature environment will accelerate the reaction of diphenyl oxalate and hydrogen peroxide, so that the device can quickly replace the main emergency component 3 for lighting operations. At the same time, diphenyl oxalate and hydrogen peroxide will generate water and carbon dioxide during the reaction process. The water generated by the reaction absorbs heat and cools the device, avoiding the problem of damage to the device caused by excessive internal temperature.

[0040] Moreover, water will change from liquid phase to gas phase under high temperature environment. At this time, the explosion-proof part 526 will be filled with a large amount of water vapor and carbon dioxide. Since a one-way pressure valve is provided between the explosion-proof part 526 and the throttle valve 528, when the pressure value in the explosion-proof part 526 does not reach the preset value, the explosion-proof part 526 is not connected to the throttle valve 528. In this state, the water vapor and carbon dioxide in the explosion-proof part 526 continuously absorb the heat energy released by the external environment and will gradually expand. At the same time, since the reaction is continuous, the carbon dioxide and water vapor are continuously released. Therefore, the gas in the explosion-proof part 526 is continuously compressed to form a high-pressure mixed gas. When the gas pressure in the explosion-proof part 526 reaches a preset value, the gas in the explosion-proof part 526 will be released to the inside of the explosion-proof cover 1 through the throttle valve 528. In this process, when the gas passes through the throttle valve 528, the high-pressure gas becomes a low-pressure gas. In this process, the gas absorbs heat, increases its internal energy, and reduces the surrounding temperature, thereby achieving a second-order cooling of the temperature in the explosion-proof cover 1, avoiding the problem of the temperature in the explosion-proof cover 1 gradually increasing and causing secondary fire or explosion.

[0041] As the throttle valve 528 continuously delivers gas into the explosion-proof cover 1, the air pressure in the explosion-proof cover 1 continues to increase. When the air pressure inside the explosion-proof cover 1 is greater than the external air pressure, the gas will move to the outside of the explosion-proof cover 1 through the whistle 6 arranged on the explosion-proof cover 1. In this process, the gas will push the gas to contact with the film in the whistle 6 through the pressure difference between the inside and the outside, causing the film to vibrate, thereby making a sound, providing auditory guidance to the people who have not been evacuated, thereby effectively avoiding the problem of excessive smoke in the air in a fire scene, resulting in the light emitted by the marker light being blocked and unable to provide effective guidance to personnel.

[0042] Finally, when the gas in the explosion-proof cover 1 is continuously transmitted to the outside through the whistle 6 under the action of air pressure, since the gas in the explosion-proof cover 1 is mostly carbon dioxide produced by the reaction of diphenyl oxalate and hydrogen peroxide, the external area of ​​the device can be extinguished to a certain extent by the sprayed carbon dioxide. At the same time, the sprayed carbon dioxide gas can blow away the smoke covering the outer area of ​​the device, thereby facilitating personnel to find the device and evacuate according to the identification of the device.

[0043] Embodiment 3, the present invention also provides a method for controlling an explosion-proof emergency sign light, comprising the following steps: S1, fixed installation, fix the sign light on the wall through the auxiliary emergency component 5; S2, connecting the circuit, electrically connecting the external circuit to the main emergency component 3; S3, storing electric energy through the main emergency component 3; S4. When the external circuit cannot normally supply power to the sign light, the main emergency component 3 releases the stored electric energy so that the main emergency component 3 provides emergency guidance for personnel evacuation; S5. When the main emergency component 3 is short of power, the inductive component 51 controls the emergency component 52 to replace the main emergency component 3 to illuminate the mark, and at the same time cools the explosion-proof cover 1.

[0044] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An explosion-proof emergency sign light, comprising an explosion-proof cover, a connecting piece is provided on one side of the explosion-proof cover, and a main emergency component is provided between the explosion-proof cover and the connecting piece, characterized in that: A secondary emergency component is provided between the explosion-proof cover and the main emergency component; The main emergency component includes a power supply unit, which is used for emergency power supply and lighting when the external power supply cannot provide normal power supply; The secondary emergency component includes an inductive part and an emergency part, the inductive part is electrically connected to the primary emergency component, and the emergency part is connected to the primary emergency component through the inductive part; The inductive part is used to detect the electric energy of the main emergency component. When the main emergency component stops working due to insufficient electric energy, the emergency part replaces the main emergency component for lighting identification.

2. The emergency sign light according to claim 1, characterized in that: The inductive part includes an electromagnet, and a plurality of the electromagnets are arranged in a mirror-image distribution on both sides of the power supply part and are electrically connected to the power supply part. An elastic part is fixedly connected to one end of the electromagnet away from the power supply part, and a magnetic part is fixedly connected to one end of the elastic part away from the electromagnet. When the electromagnet is energized and generates magnetism, it can overcome the elastic force of the elastic part and be magnetically attracted to the magnetic part.

3. The emergency sign light according to claim 2, characterized in that: The emergency part comprises a piston rod, the piston rod is fixedly connected to one end of the magnetic part away from the elastic part, an injection tube is sleeved on the outer side of the piston rod, and the piston rod is sealingly and slidably connected to the injection tube.

4. The emergency sign light according to claim 3, characterized in that: The outside of the injection tube is wrapped with multiple layers of thermal insulation, which includes but is not limited to materials with high-temperature thermal insulation function such as aluminum silicate fiber felt. A plurality of support members are arranged in a linear array on the outside of each thermal insulation. A plurality of injection tubes located on one side of the power supply part are filled with a first reaction liquid, and a plurality of injection tubes located on the other side of the power supply part are filled with a second reaction liquid. The first reaction liquid and the second reaction liquid can generate visible light after mixing.

5. The emergency sign light according to claim 4, characterized in that: A connecting tube is provided at one end of the injection tube away from the piston rod, and the end of the connecting tube away from the injection tube passes through the explosion-proof cover and is connected to the explosion-proof component. The explosion-proof component is embedded in the explosion-proof cover, and a reaction tank for reacting the solution in the injection tube is provided in the explosion-proof component. The explosion-proof component is made of transparent explosion-proof material.

6. The emergency sign light according to claim 5, characterized in that: The explosion-proof cover is located above the explosion-proof component and is provided with an air collecting groove connected to the reaction tank. A throttle valve is fixedly connected to one side of the air collecting groove, and a one-way pressure valve is provided at the connection between the air collecting groove and the throttle valve. A plurality of air whistles are arranged in an array at one end of the explosion-proof cover close to the explosion-proof component.

7. The emergency sign light according to claim 1, characterized in that: A hanging assembly is arranged above the explosion-proof cover, and the hanging assembly comprises a hanging bracket and a hanging screw, and the sign light is fixed on the wall through the hanging assembly.

8. The emergency sign light according to claim 1, characterized in that: The main emergency component includes a signboard and a power supply unit for powering the auxiliary emergency component and the signboard. The power supply unit includes a rectifier, an inverter and a battery pack. When the sign light is connected to an external power supply and powered on normally, the power supply unit charges the battery pack. When the sign light is connected to an external power supply but cannot be powered on normally, the power supply unit releases the electrical energy in the battery pack to power the sign light and the reciprocating drive component.

9. The emergency sign light according to claim 8, characterized in that: The signboard comprises an electric control display screen and a connection frame. The signboard is fixedly connected to the inside of the explosion-proof cover by bolts, and a sealing strip is arranged on the signboard.

10. A method for controlling an explosion-proof emergency sign light, wherein the explosion-proof emergency sign light according to claim 1 is controlled by the method, characterized in that: The steps include: S1. Fixed installation: fixing the sign light on the wall through the auxiliary emergency component; S2, connect the circuit, and electrically connect the external circuit to the main emergency component; S3, storing electric energy through the main emergency component; S4. When the external circuit cannot normally supply power to the sign light, the main emergency component releases the stored electric energy so that the main emergency component provides emergency guidance for personnel evacuation; S5. When the main emergency component is short of power, the inductive unit controls the emergency unit to replace the main emergency component for lighting identification, and cools the explosion-proof cover at the same time.

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