Explosion-proof emergency lamp

Abstract

The explosion-proof emergency lamp comprises a lamp body, the lamp body comprises a base, a wiring end arranged on the base, a light source assembly and a transparent explosion-proof lamp panel, a groove used for installing the light source assembly is formed in the base, and the transparent explosion-proof lamp panel covers a groove opening of the groove in a sealed mode; a mounting hole penetrating into the groove is further formed in the base, and an electric valve is further arranged on the mounting hole; a combustible gas sensor is also arranged on the base; the lamp further comprises a connecting pipe arranged outside the lamp body and a gas tank filled with a polyurethane foaming agent, and the gas tank filled with the polyurethane foaming agent is connected to the mounting hole through the connecting pipe; the light source assembly comprises an AC-DC converter, a rechargeable power supply, a processor, an LED ballast and an LED lamp panel; the electronic components are connected in a matched mode. When it is detected that the combustible gas enters the lamp body, the lamp body is automatically filled with an insulated polyurethane foaming agent, and the light source assembly is isolated from the combustible gas in the external environment.

Description

Technical Field

[0001] The utility model relates to the technical field of lamps, in particular to an explosion-proof emergency lamp. Background Art

[0002] Explosion-proof emergency lights are a type of lighting fixture with explosion-proof properties. They are used in industrial and mining places where flammable gases exist. They can prevent the electric arcs, sparks and high temperatures that may be generated inside from igniting flammable gases in the surrounding environment. The common explosion-proof emergency light structure includes a metal lamp holder, a transparent explosion-proof lampshade sealed and connected to the metal lamp holder, and a light source assembly set in the transparent explosion-proof lampshade. The metal lamp holder and the transparent explosion-proof lampshade are strong and not easily damaged. Therefore, this explosion-proof lamp structure can effectively isolate the light source assembly from the flammable gases in the external environment when the transparent explosion-proof lampshade is intact, so that the light source assembly is safe in terms of electricity use.

[0003] However, in actual use over the years, the following situation exists: due to repeated thermal expansion and contraction, the sealing performance between the metal lamp holder and the transparent explosion-proof lampshade will be reduced, and the light source component cannot be sealed, but it is difficult for people to see it with the naked eye. If the sealing performance between the metal lamp holder and the transparent explosion-proof lampshade is reduced, the light source component will come into contact with the flammable gas in the external environment, which poses a safety hazard.

[0004] There is another situation that explosion-proof lamps are often bumped by external forces, causing the surface of the transparent explosion-proof lampshade to be damaged and unable to seal the light source component. If it is not reported in time, continued use will cause the light source component to come into contact with flammable gases in the external environment, posing a safety hazard. Utility Model Content

[0005] Therefore, in order to solve the above problems, the utility model proposes an explosion-proof emergency light. When it detects that flammable gas enters the interior of the lamp body, it automatically fills the interior of the lamp body with insulating polyurethane foam to isolate the light source component from the flammable gas in the external environment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An explosion-proof emergency light, comprising a lamp body, the lamp body comprising a base, a wiring terminal arranged on the base, a light source assembly and a transparent explosion-proof lamp plate, the base being provided with a groove for mounting the light source assembly, the transparent explosion-proof lamp plate being sealed and covered on the notch of the groove, so that a closed space is formed between the transparent explosion-proof lamp plate and the base;

[0008] The base is also provided with a mounting hole penetrating into the groove, and the base is also provided with an electric valve located on the mounting hole;

[0009] A combustible gas sensor is also provided on the base in the enclosed space;

[0010] It also includes a connecting pipe disposed outside the lamp body and a gas tank filled with polyurethane foaming agent, wherein the gas tank of the polyurethane foaming agent is connected to the mounting hole through the connecting pipe, and the contact surface of the connecting pipe with the mounting hole is also filled with a sealing material;

[0011] The light source assembly includes an AC-DC converter, a rechargeable power supply, a processor, an LED ballast and an LED light board;

[0012] The AC input end of the AC-DC converter is electrically connected to the wiring terminal, the DC output end of the AC-DC converter is electrically connected to the rechargeable power supply, the rechargeable power supply is electrically connected to the LED ballast and the LED lamp board to form a conductive path, the rechargeable power supply is also electrically connected to the power supply end of the processor, and the combustible gas sensor and the electric valve are electrically connected to the processor respectively.

[0013] Furthermore, the light source assembly also includes a buzzer; the buzzer is electrically connected to the processor.

[0014] Furthermore, the light source assembly also includes a wireless communication module; the wireless communication module is electrically connected to the processor.

[0015] Furthermore, the wireless communication module adopts any one or a combination of 3G communication module, 4G communication module, and 5G communication module.

[0016] By adopting the above technical solution, the beneficial effects of the utility model are:

[0017] When flammable gas from the external environment enters the explosion-proof emergency light due to the destruction of the seal between the base and the transparent explosion-proof lampshade or the damage of the transparent explosion-proof lampshade, and the flammable gas detection sensor detects that the flammable gas concentration is greater than the set threshold, the processor controls the electric valve to open, and the polyurethane foam in the gas tank is pressed into the groove of the base by the propelling gas pressure in the gas tank. The polyurethane foam will expand and wrap the light source assembly. The polyurethane foam has insulating properties, thereby physically isolating the light source assembly from the flammable gas in the external environment. At the same time, the buzzer sounds to report the repair, notifying the staff to perform maintenance as soon as possible.

[0018] The wireless communication module can also send prompt information to the staff's mobile phone or computer terminal to notify the staff to carry out maintenance as soon as possible. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded view of the lamp body of the utility model.

[0020] Figure 2 It is a schematic diagram of the structure of the lamp body of the utility model.

[0021] Figure 3 It is a cross-sectional view of the lamp body of the utility model.

[0022] Figure 4 It is a circuit connection block diagram of the utility model. DETAILED DESCRIPTION

[0023] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0024] refer to Figure 1-Figure 4 This embodiment provides an explosion-proof emergency lamp, comprising a lamp body, a connecting pipe 6 and a gas tank (not shown) containing polyurethane foam. The gas tank containing polyurethane foam is an existing device, and the gas tank contains a propelling gas (such as propane gas) and polyurethane foam. When in use, the polyurethane foam is squeezed out of the gas tank by the propelling gas, and the polyurethane foam expands after being squeezed out of the gas tank. The polyurethane foam is insulated.

[0025] The lamp body comprises a base 1, a connection terminal 13 ( Figure 1 , Figure 2 and Figure 3 The wiring terminal 13 is not shown in the figure, but those skilled in the art should understand that the wiring terminal 13 is arranged on the base 1, the light source assembly 3 and the transparent explosion-proof lamp panel 2, and the base 1 is provided with a groove 11 for mounting the light source assembly 3, and the transparent explosion-proof lamp panel 2 is sealed and covered on the notch of the groove 11, so that a closed space is formed between the transparent explosion-proof lamp panel 2 and the base 1.

[0026] The base 1 is also provided with a mounting hole 12 (such as Figure 3 As shown), an electric valve 5 is also provided on the base 1 on the mounting hole 12.

[0027] The gas tank of the polyurethane foaming agent is connected to the mounting hole 12 via a connecting pipe 6 (the connecting pipe 6 connected to the mounting hole 12 is not shown in the figure, but those skilled in the art should understand the installation method of the connecting pipe 6 connected to the mounting hole 12), and the contact surface between the connecting pipe 6 and the mounting hole 12 is also filled with sealing material, such as sealant, etc.

[0028] A combustible gas sensor 4 is also provided on the base 1 in the enclosed space (not marked in the figure).

[0029] The light source assembly 3 includes a processor 31 , a rechargeable power source 32 , an AC-DC converter 33 , an LED ballast 34 , an LED light board 35 , a buzzer 36 and a wireless communication module 37 .

[0030] In this specific embodiment, preferably, the processor 31 uses an ESP32-S3 chip, and the wireless communication module 37 uses a 4G communication module. The above-mentioned electronic components are all existing equipment, and those skilled in the art should have the conventional selection ability of the above-mentioned electronic components. Moreover, those skilled in the art can fully reproduce the explosion-proof emergency light disclosed in this patent application and produce the same technical effect after a limited number of circuit connection experiments based on this specification and the drawings of the specification.

[0031] The connection method of the above electronic components is:

[0032] The AC input end of the AC-DC converter 33 is electrically connected to the terminal 13, and the terminal 13 is connected to the mains via an external power adapter. The DC output end of the AC-DC converter 33 is electrically connected to the rechargeable power supply 32 to charge the rechargeable power supply 32. When the mains power is cut off, the rechargeable power supply 32 can be used as an emergency power supply.

[0033] The rechargeable power source 32 is electrically connected to the LED light board 35 through the LED ballast 34 to form a conductive path, and the LED light board 35 lights up after being powered on.

[0034] The rechargeable power source 32 is also electrically connected to the power terminal of the processor 31 to supply power to the processor 31 .

[0035] The combustible gas sensor 4 , the electric valve 5 , the buzzer 36 and the wireless communication module 37 are electrically connected to the processor 31 , respectively.

[0036] When the explosion-proof emergency light is damaged due to the sealing between the base 1 and the transparent explosion-proof lampshade 2 or the transparent explosion-proof lampshade 2 is damaged, the combustible gas in the external environment enters, and the combustible gas detection sensor 4 detects that the concentration of the combustible gas is greater than the set threshold, the processor 31 controls the electric valve 5 to open, and the polyurethane foam in the gas tank is pressed into the groove 11 of the base 1 by the propelling gas pressure in the gas tank, and the polyurethane foam will expand and wrap the light source assembly 3. The polyurethane foam has insulation properties, so that the light source assembly 3 is physically isolated from the combustible gas in the external environment, and the safety performance is good. At the same time, the buzzer 36 sounds to report the repair, notifying the staff to perform maintenance as soon as possible.

[0037] There is another situation: a prompt message is sent to the mobile phone or computer terminal of the staff through the wireless communication module 37 to notify the staff to perform maintenance as soon as possible.

[0038] The wireless communication module 37 may also be replaced by a 3G communication module and / or a 5G communication module.

[0039] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes may be made to the present invention in form and detail without departing from the spirit and scope of the present invention as defined in the appended claims, all of which are within the scope of protection of the present invention.

Claims

1. An explosion-proof emergency light, comprising a lamp body, the lamp body comprising a base, a terminal arranged on the base, a light source assembly and a transparent explosion-proof lamp board, the base being provided with a groove for mounting the light source assembly, the transparent explosion-proof lamp board being sealed and covered on the notch of the groove, so that a closed space is formed between the transparent explosion-proof lamp board and the base; Features: The base is also provided with a mounting hole penetrating into the groove, and the base is also provided with an electric valve located on the mounting hole; A combustible gas sensor is also provided on the base in the enclosed space; It also includes a connecting pipe disposed outside the lamp body and a gas tank filled with polyurethane foaming agent, wherein the gas tank of the polyurethane foaming agent is connected to the mounting hole through the connecting pipe, and the contact surface of the connecting pipe with the mounting hole is also filled with a sealing material; The light source assembly includes an AC-DC converter, a rechargeable power supply, a processor, an LED ballast and an LED light board; The AC input end of the AC-DC converter is electrically connected to the wiring terminal, the DC output end of the AC-DC converter is electrically connected to the rechargeable power supply, the rechargeable power supply is electrically connected to the LED ballast and the LED lamp board to form a conductive path, the rechargeable power supply is also electrically connected to the power supply end of the processor, and the combustible gas sensor and the electric valve are electrically connected to the processor respectively.

2. The explosion-proof emergency light according to claim 1, characterized in that: The light source assembly also includes a buzzer; The buzzer is electrically connected to the processor.

3. The explosion-proof emergency light according to claim 2, characterized in that: The light source assembly also includes a wireless communication module; The wireless communication module is electrically connected to the processor.

4. The explosion-proof emergency light according to claim 3, characterized in that: The wireless communication module adopts any one or a combination of 3G communication module, 4G communication module, and 5G communication module.

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