Explosion-proof double-lamphead fire emergency lamp

Abstract

The utility model relates to fire emergency lamp technical field especially, it relates to a kind of explosion-proof double lamp head fire emergency lamp, comprising: emergency lamp main part and install two illuminating lamps on emergency lamp main part;Emergency lamp main part includes shell body, top cover and circuit board, and state indicator lamp is equipped on top cover, and illuminating lamp includes headlamp shell body and sequentially installs lamp panel, transparent glass cover and pressure ring on headlamp shell body;The contact surface of top cover and shell body is first explosion-proof surface;The threaded connection surface of headlamp shell body and pressure ring is second explosion-proof surface, and the annular gap of pressure ring and the outer edge of transparent glass cover is filled with epoxy resin, forms first glue sealing area;The inner end surface of top cover corresponding state indicator lamp is provided with enclosure, and epoxy resin is filled in enclosure, forms second glue sealing area, improves the explosion-proof safety factor of product whole, ensures the reliability and security of emergency lamp in flammable and explosive environment use.

Description

Technical Field

[0001] This utility model relates to the field of fire emergency lighting technology, and in particular to an explosion-proof double-lamp head fire emergency light. Background Technology

[0002] As a core lighting device in emergency scenarios such as fires and power outages, the reliability of fire emergency lights directly affects the conduct of personnel evacuation and rescue operations. Fire emergency lights are suitable for emergency lighting and are the most common lighting tool in fire emergencies, offering long emergency duration, high brightness, and automatic emergency response in case of power failure. In flammable and explosive environments such as chemical workshops, oil and gas storage and transportation stations, and underground coal mines, emergency lights must not only meet conventional emergency lighting functions but also possess stringent explosion-proof performance to prevent electrical sparks and high-temperature flames generated inside the equipment from leaking into the external environment and igniting surrounding flammable gases, dust, and other hazardous media. Therefore, explosion-proof fire emergency lights have become an essential piece of equipment in such scenarios.

[0003] However, the indicator lights used in existing fire emergency lights are non-explosion-proof components. During installation, there are gaps between the indicator lights and the mounting holes, which can easily become weak points in explosion protection and cause safety accidents.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of this disclosure and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] This invention provides an explosion-proof dual-lamphead fire emergency light, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An explosion-proof dual-lamphead fire emergency light includes: an emergency light body and two lighting lamps installed on the emergency light body; The main body of the emergency light includes an outer shell, a top cover, and a circuit board installed in the mounting cavity formed by the outer shell and the top cover, and a status indicator light is provided on the top cover; The lighting fixture includes a headlamp housing and a lamp plate, a transparent glass cover, and a pressure ring sequentially mounted on the headlamp housing. The contact surface between the top cover and the outer shell is the first explosion-proof surface; The threaded connection surface between the headlamp housing and the pressure ring is the second explosion-proof surface, and the annular gap between the pressure ring and the outer edge of the transparent glass cover is filled with epoxy resin to form the first sealing area; The top cover is provided with a barrier on the inner end face corresponding to the status indicator light. Epoxy resin is filled inside the barrier to form a second sealing area. A pressure plate is installed at the open end of the barrier.

[0007] Furthermore, the outer end face of the top cover is provided with a sunken platform, and the status indicator light is installed on the sunken platform.

[0008] Furthermore, a mounting plate is also provided inside the mounting cavity of the emergency light body; The mounting plate is arranged in the upper area of ​​the circuit board, and the terminals for realizing circuit connection are fixedly mounted on the mounting plate.

[0009] Furthermore, the emergency light body is also equipped with an emergency battery, which is used to provide power support for the two lights and the status indicator lights in the event of a power outage.

[0010] Furthermore, the two lighting lamps are connected to the emergency light body via a first connecting bracket; The first connecting bracket includes a first bracket connected to the main body of the emergency light and two second brackets connected to the two lighting lamps; The ends of the two second brackets furthest from the lighting lamp are both connected to the first bracket; The second bracket is connected to both the lighting lamp and the first bracket by manual screws.

[0011] Furthermore, the main body of the emergency light is fixed in the installation position by the second connecting bracket.

[0012] Furthermore, there are three status indicator lights, namely red, green and yellow, which are used to independently indicate the different working states of the emergency light.

[0013] Furthermore, it also includes a testing device, including a mounting bracket, a test button, a pin, and a return spring; The mounting bracket is disposed inside the mounting cavity, and the test button is installed on the side of the mounting bracket facing the side wall of the outer casing and is electrically connected to the circuit board to trigger the emergency function test; The ejector pin penetrates the side wall of the housing, with one end located in the mounting cavity corresponding to the test button, and the other end extending out of the side wall of the housing fitted with the reset spring; The two ends of the return spring abut against the end of the ejector pin and the outer wall of the outer casing, respectively.

[0014] Furthermore, four first through holes are provided through the side wall of the outer casing for external power lines, signal lines and internal connection lines to pass through; Both headlamp housings of the two lighting lamps have a second through hole at the center for the wires connecting the circuit board and the lamp panel to pass through.

[0015] Furthermore, anti-loosening sleeve structures are installed at the corresponding positions of the first and second threading holes; The anti-loosening sleeve structure includes a leather plug, a baffle, and a clamping nut that are sequentially inserted into the first or second threading hole. The internal thread of the clamping nut is adapted to the external thread of the first or second threading hole.

[0016] The following technical effects can be achieved through the technical solution of this utility model: By setting up the first and second explosion-proof surfaces, independent explosion-proof units are constructed for the main body of the emergency light and the lighting lamp, forming a zoned explosion-proof barrier. The first and second sealing areas can achieve all-round sealing and reinforcement of the tiny gaps caused by the installation of the transparent glass cover and status indicator lights, improving the overall explosion-proof safety factor of the product and ensuring the reliability and safety of the emergency light in flammable and explosive environments. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A first-view structural diagram of an explosion-proof dual-lamphead fire emergency light; Figure 2 A schematic diagram of the second-view structure of an explosion-proof dual-lamphead fire emergency light; Figure 3 A third-view structural diagram of an explosion-proof dual-lamp head fire emergency light; Figure 4 for Figure 3 Schematic diagram of section AA; Figure 5 for Figure 3 Schematic diagram of the BB section; Figure 6 This is a schematic diagram showing the location of the inner enclosure of the roof; Figure 7 This is a schematic diagram showing the installation of various components inside the outer casing; Figure 8 This is a schematic diagram of the testing device.

[0019] Reference numerals: 1. Emergency light body; 1a. Mounting cavity; 1b. First explosion-proof surface; 1c. Second sealant area; 11. Outer shell; 12. Top cover; 12a. Sunken platform; 13. Circuit board; 14. Enclosure; 15. Pressure plate; 2. Lighting lamp; 2a. Second explosion-proof surface; 2b. First sealant area; 21. Headlamp housing; 22. Lamp panel; 23. Transparent glass cover; 24. Pressure ring; 3. Status indicator light; 4. Mounting plate; 5. Emergency battery; 6. First connecting bracket; 61. First bracket; 62. Second bracket; 63. Manual screw; 7. Second connecting bracket; 8. Testing device; 81. Mounting bracket; 82. Test button; 83. Ejector pin; 84. Return spring; 9. Anti-loosening sleeve structure; 91. Leather plug; 92. Baffle; 93. Compression nut. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0022] like Figures 1-8 As shown, this application provides an explosion-proof dual-head fire emergency light, including: an emergency light body 1 and two lighting lamps 2 installed on the emergency light body 1; the emergency light body 1 includes an outer shell 11, a top cover 12 and a circuit board 13 installed in the mounting cavity 1a formed by the outer shell 11 and the top cover 12, and a status indicator light 3 is provided on the top cover 12; the lighting lamp 2 includes a headlamp housing 21 and a lamp plate 22, a transparent glass cover 23 and a pressure ring 24 installed sequentially on the headlamp housing 21; The contact surface between the top cover 12 and the outer shell 11 is the first explosion-proof surface 1b; the threaded connection surface between the headlamp housing 21 and the pressure ring 24 is the second explosion-proof surface 2a, and the annular gap between the pressure ring 24 and the outer edge of the transparent glass cover 23 is filled with epoxy resin to form the first sealing area 2b; a barrier 14 is provided on the inner end face of the top cover 12 corresponding to the status indicator light 3, and epoxy resin is filled inside the barrier 14 to form the second sealing area 1c; a pressure plate 15 is installed at the open end of the barrier 14. It should be noted that the first explosion-proof surface is a side wall structure extending axially, while the second explosion-proof surface is an explosion-proof threaded structure.

[0023] By setting the first explosion-proof surface 1b and the second explosion-proof surface 2a, independent explosion-proof units are constructed for the emergency light body 1 and the lighting lamp 2, forming a zoned and isolated explosion-proof barrier; while the first adhesive sealing area 2b and the second adhesive sealing area 1c can achieve all-round sealing and reinforcement of the tiny gaps caused by the installation of the transparent glass cover 23 and the status indicator 3, improving the overall explosion-proof safety factor of the product and ensuring the reliability and safety of the emergency light in flammable and explosive environments.

[0024] As a preferred embodiment of the above scheme, the outer end face of the top cover 12 is provided with a sunken platform 12a, and the status indicator light 3 is installed on the sunken platform 12a.

[0025] The sunken platform 12a defines an independent assembly area for the status indicator light 3 and the nameplate. When an external object accidentally comes into contact with the surface of the lamp, it will first impact the flat area of ​​the outer casing 11, rather than directly affecting the status indicator light 3 and the nameplate in the sunken area. This effectively reduces physical damage such as breakage of the status indicator light 3 and scratches on the nameplate, ensuring functional integrity. In addition, the sunken platform 12a creates a visual recess through the height difference, making the lights of the status indicator light 3 and the markings on the nameplate contrast with the surrounding plane, improving visibility. Even in a smoke-filled fire scene or a brightly lit outdoor environment, staff can quickly capture the status of the status indicator light 3 and the parameter information on the nameplate.

[0026] In a preferred embodiment of this utility model, an installation plate 4 is also provided in the mounting cavity 1a of the emergency light body 1; the installation plate 4 is arranged in the upper area of ​​the circuit board 13, and the terminals used to realize the circuit connection are fixedly installed on the installation plate 4.

[0027] The independent mounting plate 4 provides space for terminal expansion. Functional expansion can be achieved by replacing the mounting plate 4 with one of the appropriate size or by increasing the number of terminals on the existing mounting plate 4, without requiring significant modifications to the structure of the circuit board 13 or the mounting cavity 1a, thus enhancing the product's adaptability. The mounting plate 4 raises the terminals above the circuit board 13 to form a layered layout, which can effectively prevent physical collisions or wire entanglement between the terminals and electronic components on the circuit board 13 during wiring, while also preventing the weak electromagnetic interference generated when the terminals are working from affecting the precise control of the circuit board 13.

[0028] In this solution, the main body 1 of the emergency light is also equipped with an emergency battery 5, which provides power to the two lights 2 and the status indicator 3 in the event of a power outage. The emergency battery 5 adopts a rechargeable structure, rather than a disposable battery. In normal non-emergency situations, the battery can be continuously replenished by an external power source to maintain a fully charged standby state, eliminating the need for frequent battery removal and replacement by staff, thus reducing maintenance costs and workload. After a single emergency, the battery can be automatically recharged upon power restoration to restore its capacity, enabling reuse and extending its service life.

[0029] In the preferred embodiment of this utility model, the two lighting lamps 2 are connected to the emergency light body 1 through the first connecting bracket 6; the first connecting bracket 6 includes a first bracket 61 connected to the emergency light body 1 and two second brackets 62 connected to the two lighting lamps 2; the ends of the two second brackets 62 away from the lighting lamps 2 are both connected to the first bracket 61; the second brackets 62 are connected to the lighting lamps 2 and the first brackets 61 by manual screws 63.

[0030] During installation, the first bracket 61 is first fixed to the emergency light body 1, then the assembled lighting lamps 2 are connected to the second bracket 62, and finally the second bracket 62 is connected to the first bracket 61. If a single lighting lamp 2 malfunctions, such as a damaged lamp panel 22 or a broken transparent glass cover 23, the corresponding side of the second bracket 62 and the lighting lamp 2 can be disassembled separately without disassembling the entire connection structure or affecting the normal operation of another lamp head, thus shortening maintenance downtime and reducing repair costs; while the manual screw 63 allows users to adjust the illumination angle of the two lighting lamps 2 more quickly.

[0031] In the preferred embodiment, the main body 1 of the emergency light is fixed in the installation position by the second connecting bracket 7, which effectively reduces the risk of the light 2 tilting or loosening due to vibration and ensures the stability of the installation.

[0032] In this solution, there are three status indicator lights (3): red, green, and yellow. These lights independently indicate the different operating states of the emergency lights, allowing staff to visually assess their operation. Typically, green corresponds to normal power supply / standby mode, indicating that the device is under effective monitoring; yellow corresponds to fault warning states, such as low battery or poor wiring connections, facilitating early troubleshooting; and red corresponds to emergency activation, quickly indicating that the device has switched to battery power in a power outage scenario. Furthermore, the status indicator lights (3) use small LEDs for greater brightness and visibility.

[0033] In a preferred embodiment of this utility model, the fire emergency light further includes a testing device 8, comprising a mounting bracket 81, a test button 82, a pin 83, and a return spring 84. The mounting bracket 81 is disposed within the mounting cavity 1a, and the test button 82 is mounted on the side of the mounting bracket 81 facing the side wall of the outer casing 11, and is electrically connected to the circuit board 13 to trigger an emergency function test. The pin 83 penetrates the side wall of the outer casing 11, with one end located in the mounting cavity 1a corresponding to the test button 82, and the other end extending out of the side wall of the outer casing 11 is fitted with the return spring 84. The two ends of the return spring 84 abut against the end of the pin 83 and the outer side wall of the outer casing 11, respectively.

[0034] Under normal conditions, the drive pin 83 remains separated from the test button 82. During testing, the operator only needs to press the pin 83 on the outside of the housing 11 to trigger the test button 82, simulating a power outage scenario to verify whether functions such as emergency switching, battery power supply, and dual-lamp illumination are normal. After the test, the reset spring 84 automatically drives the pin 83 to return to its normal power supply state. This "one-click test" mode supports daily inspections and can promptly detect problems such as battery depletion and circuit switching failures, ensuring that the equipment is always in an effective emergency standby state.

[0035] In this invention, four first through holes are provided on the side wall of the outer casing 11 for external power lines, signal lines, and internal connection lines to pass through; the headlamp housings 21 of the two lighting lamps 2 each have a second through hole at the center for wires connecting the circuit board 13 and the lamp board 22 to pass through. One hole is for the external power line to enter, one hole is for the emergency signal feedback line to exit, and the other two holes correspond to the connection lines of the two lighting lamps 2 respectively, avoiding cross-entanglement of different functional lines; the second through hole at the center of the lamp headlamp housing 21 ensures that the lines of the lamp board 22 are centrally arranged and precisely aligned with the electrode interface of the lamp board 22, reducing bending stress on the lines.

[0036] As a preferred embodiment of the above scheme, anti-loosening sleeve structure 9 is installed at the positions of the first and second wire holes respectively; the anti-loosening sleeve structure 9 includes a leather plug 91, a baffle 92 and a clamping nut 93 that are sequentially installed into the first or second wire hole, and the internal thread of the clamping nut 93 is adapted to the external thread of the first or second wire hole.

[0037] The axial clamping and fixing of the rubber plug 91 and the baffle 92 is achieved by tightening the thread. The wire passes through the wire hole through the center hole of the rubber plug 91. The elastic material of the rubber plug 91 will wrap the wire to form a flexible clamp. At the same time, the self-locking property of the threaded connection can resist vibration and impact, prevent the wire from moving in the wire hole, and ensure the stable connection of the circuit board 13 with the lamp board 22 and the external power supply. This reduces problems such as lighting interruption and emergency function failure caused by loose wiring.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof double-lamp head fire emergency light, characterized in that, include: The emergency light body and two lights installed on the emergency light body; The main body of the emergency light includes an outer shell, a top cover, and a circuit board installed in the mounting cavity formed by the outer shell and the top cover, and a status indicator light is provided on the top cover; The lighting fixture includes a headlamp housing and a lamp plate, a transparent glass cover, and a pressure ring sequentially mounted on the headlamp housing. The contact surface between the top cover and the outer shell is the first explosion-proof surface; The threaded connection surface between the headlamp housing and the pressure ring is the second explosion-proof surface, and the annular gap between the pressure ring and the outer edge of the transparent glass cover is filled with epoxy resin to form the first sealing area; The top cover is provided with a barrier on the inner end face corresponding to the status indicator light. Epoxy resin is filled inside the barrier to form a second sealing area. A pressure plate is installed at the open end of the barrier.

2. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, The outer end face of the top cover is provided with a sunken platform, and the status indicator light is installed on the sunken platform.

3. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, The mounting cavity of the emergency light body is also equipped with a mounting plate; The mounting plate is arranged in the upper area of ​​the circuit board, and the terminals for realizing circuit connection are fixedly mounted on the mounting plate.

4. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, The emergency light body is also equipped with an emergency battery, which is used to provide power to the two lights and the status indicator lights in the event of a power outage.

5. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, The two lighting lamps are connected to the main body of the emergency light via a first connecting bracket; The first connecting bracket includes a first bracket connected to the main body of the emergency light and two second brackets connected to the two lighting lamps; The ends of the two second brackets furthest from the lighting lamp are both connected to the first bracket; The second bracket is connected to both the lighting lamp and the first bracket by manual screws.

6. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, The main body of the emergency light is fixed in the installation position by the second connecting bracket.

7. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, There are three status indicator lights, namely red, green and yellow, which are used to independently indicate the different working statuses of the emergency lights.

8. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, It also includes a testing device, including a mounting bracket, a test button, a pin, and a return spring; The mounting bracket is disposed inside the mounting cavity, and the test button is installed on the side of the mounting bracket facing the side wall of the outer casing and is electrically connected to the circuit board to trigger the emergency function test; The ejector pin penetrates the side wall of the housing, with one end located in the mounting cavity corresponding to the test button, and the other end extending out of the side wall of the housing fitted with the reset spring; The two ends of the return spring abut against the end of the ejector pin and the outer wall of the outer casing, respectively.

9. The explosion-proof double-lamp head fire emergency light according to claim 1, characterized in that, The outer casing has four first through holes on its side wall for external power lines, signal lines and internal connection lines to pass through. Both headlamp housings of the two lighting lamps have a second through hole at the center for the wires connecting the circuit board and the lamp panel to pass through.

10. The explosion-proof double-lamp head fire emergency light according to claim 9, characterized in that, Anti-loosening sleeve structures are installed at the corresponding positions of the first and second wire holes; The anti-loosening sleeve structure includes a leather plug, a baffle, and a clamping nut that are sequentially inserted into the first or second threading hole. The internal thread of the clamping nut is adapted to the external thread of the first or second threading hole.

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