A mobile explosion-proof work light

Abstract

This invention discloses a mobile explosion-proof work light, relating to the field of explosion-proof lighting equipment technology. It includes a housing with mounting brackets connected to both sides via fixing mechanisms. Inside the housing are a light source cavity and a battery cavity separated by a heat-insulating shielding layer. Explosion-proof cavities filled with high latent heat phase-change energy storage material are provided between the housing and the two cavities. An LED light panel and a floodlight lens are installed in the light source cavity, and a lithium battery and a driver board are installed in the battery cavity. The two are electrically connected via a connecting cable through a through-hole, which contains a pressure-sealing waterproof ring and a pressure-sealing screw. A waterproof ring is provided between the rear cover and the housing. This invention achieves constant-temperature explosion-proof lighting for high-power LEDs during long-term continuous illumination through phase-change energy storage and a dual-cavity explosion-proof structure; it achieves multi-angle adjustment and stable placement through a meshing toothed disc fixing mechanism; the overall protection level reaches IP67, making it suitable for mobile emergency lighting in flammable and explosive environments such as petroleum, chemical, and military industries.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof lighting equipment technology, specifically a portable explosion-proof work light. Background Technology

[0002] In scenarios such as railway maintenance, power emergency repair, petrochemical production, and military operations, the working environment often contains flammable and explosive gases and dust, and temporary and emergency operations are often carried out in areas without fixed lighting. This places extremely high demands on the explosion-proof performance, lighting effect, portability, and battery life of mobile lighting equipment.

[0003] Existing portable work lights have several shortcomings: First, their explosion-proof structure is inadequate, employing only a simple sealing structure that fails to meet the IIC-level explosion-proof standard for flammable and explosive environments, posing a safety hazard. Second, their heat dissipation performance is insufficient; the heat generated by high-power LED light sources during prolonged operation cannot be effectively dissipated, easily leading to light source aging, shortened lifespan, and even safety risks due to high temperatures. Third, there is an imbalance between portability and stability; some products simplify their support structure in pursuit of portability, making them prone to tipping over when placed, while others are bulky and difficult to move on-site. Fourth, their protective performance is insufficient; their waterproof and dustproof ratings are low in outdoor, humid, and dusty environments, making them susceptible to circuit failure due to water or dust ingress.

[0004] Therefore, there is an urgent need for a portable explosion-proof work light to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a mobile explosion-proof work light to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A portable explosion-proof work light includes a housing with symmetrical fixing mechanisms on both sides, which are connected to a placement bracket. A light source cavity is located on the front side of the housing, and a battery cavity is located on the rear side. A heat-insulating shielding layer is provided between the light source cavity and the battery cavity, and a connection hole is provided on the heat-insulating shielding layer. Explosion-proof cavities are provided between the housing and the light source cavity, and between the housing and the battery cavity. A lighting mechanism is installed inside the light source cavity, and a power supply control mechanism is installed inside the battery cavity. The lighting mechanism and the power supply control mechanism are electrically connected via a connecting cable that passes through the connection hole. A rear cover is installed on the rear side of the housing, which is connected to the power supply control mechanism and seals the battery cavity. A waterproof ring is provided between the rear cover and the housing.

[0007] As a further aspect of the present invention: the connecting hole is provided with a compression waterproof ring and a compression screw, the connecting cable passes through the compression screw and the compression waterproof ring in sequence, the compression waterproof ring abuts against the heat insulation shielding layer, the compression screw is threadedly connected to the heat insulation shielding layer and abuts against the compression waterproof ring.

[0008] As a further aspect of the present invention: the explosion-proof cavity is filled with a high latent heat phase change energy storage material, and heat dissipation fins are integrally formed on the shell.

[0009] As a further embodiment of the present invention: the fixing mechanism includes: a first meshing toothed disc, a second meshing toothed disc, and a fixing screw. The first meshing toothed disc is connected to the housing, the second meshing toothed disc is connected to the placement bracket and meshes with the first meshing toothed disc, the housing is threadedly connected to the fixing screw, and the fixing screw abuts against the placement bracket.

[0010] As a further aspect of the present invention, the fixing mechanism further includes a flat washer and an elastic washer, which are sleeved on the fixing screw and positioned between the fixing screw and the placement bracket.

[0011] As a further embodiment of the present invention: the lighting mechanism includes: an LED light panel, a floodlight lens, a lamp head front cover, a clamping ring, and tempered glass. The LED light panel is connected to the housing and electrically connected to a connecting cable. The floodlight lens is connected to the housing and located in front of the LED light panel. The housing is threadedly connected to the lamp head front cover. The inner wall of the lamp head front cover is threadedly connected to the clamping ring. Tempered glass is provided between the clamping ring and the lamp head front cover.

[0012] As a further aspect of the present invention: a waterproof sealing ring is fitted on the front cover of the lamp head to improve the sealing and waterproof performance at the connection between the front cover of the lamp head and the housing.

[0013] As a further aspect of the present invention: a thermally conductive silicone heat dissipation layer is provided between the LED light board and the heat insulation shielding layer to improve the heat dissipation effect of the LED light board.

[0014] As a further embodiment of the present invention: the power supply control mechanism includes: a lithium battery, a locking bracket, a drive board, a waterproof connector, a display screen, a transparent cover, and buttons. The lithium battery is fixed to the housing by the locking bracket. The lithium battery is electrically connected to the drive board. The drive board is electrically connected to a connecting cable. The drive board is mounted on the rear cover. The drive board is connected to the waterproof connector. The waterproof connector penetrates the rear cover and is connected to it. The drive board is electrically connected to the display screen. The display screen is mounted on the rear cover. The display screen has a transparent cover that penetrates the rear cover. The drive board has buttons that penetrate the rear cover.

[0015] As a further aspect of the present invention: the button is provided with a waterproof cap, the waterproof cap is sealed to the back cover, and a second waterproof ring is provided between the transparent cover and the back cover.

[0016] Compared with the prior art, the beneficial effects of the present invention are: High-level explosion-proof safety performance: The shell is made of aluminum alloy die casting, combined with the light source cavity, battery cavity and independent explosion-proof cavity filled with high latent heat phase change energy storage material, forming multiple explosion-proof barriers, with an explosion-proof level of ExdIICT6Ga, which meets the national explosion-proof standard.

[0017] Excellent heat dissipation and phase change energy storage with constant temperature: A thermally conductive silicone heat dissipation layer is set between the LED light panel and the heat insulation shielding layer, so that heat is evenly conducted to the shell and the one-piece molded heat dissipation fins for radiative heat dissipation; at the same time, the high latent heat phase change energy storage material filled in the explosion-proof cavity absorbs a large amount of latent heat during high-power continuous lighting, locking the shell temperature rise within the T6 level safety range (≤85℃). After the lighting is turned off, the heat is slowly released to achieve automatic constant temperature regulation, eliminating the risk of combustion and explosion caused by high temperature, and supporting 24-hour continuous explosion-proof constant lighting of high-power LEDs.

[0018] Dual-cavity independent explosion-proof and thermal isolation redundancy: A heat-insulating shielding layer and an independent explosion-proof cavity are provided between the light source cavity and the battery cavity to achieve physical and thermal isolation: on the one hand, it prevents the LED heat from being directly conducted to the lithium battery, avoiding battery thermal runaway; on the other hand, even if one cavity fails, it will not spread to the other cavity, forming a dual-level explosion-proof safety redundancy, which greatly improves the absolute safety in high-risk scenarios.

[0019] Precise angle adjustment and portability are combined: The fixing mechanism adopts a structure in which meshing gear one and meshing gear two work together with the fixing screw. Loosening the screw can achieve stepless angle adjustment from 0 to 180°. After tightening, the gears are engaged and locked, and will not slip due to vibration. The placement stand can be used as a support foot to place stably on the ground. It has an anti-slip sleeve on the top and an anti-slip shock-absorbing pad on the bottom. It can also be used as a handle, combining portability and stable placement.

[0020] High protection level and fully sealed structure: All joint surfaces of the whole machine (waterproof sealing ring between the lamp head front cover and the housing, waterproof ring 1 between the rear cover and the housing, waterproof ring 2 between the transparent cover and the rear cover, waterproof caps on the buttons, waterproof connectors, etc.) are made of high-performance silicone rubber or fluororubber seals, combined with a tight-fitting waterproof ring and tight-fitting screw structure to ensure the explosion-proof and sealing performance of the connection cable passing through the wall. The protection level of the whole machine reaches IP67, which can be immersed in water for a short time without damage, and is suitable for harsh environments such as outdoor, humid and dusty environments. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of a mobile explosion-proof work light according to an embodiment of the present invention.

[0022] Figure 2 This is a rear view structural diagram of a mobile explosion-proof work light according to an embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the structure of the light source cavity in an embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the battery cavity structure in an embodiment of the present invention.

[0025] Figure 5 This is a cross-sectional view of the housing in an embodiment of the present invention.

[0026] Figure 6 This is a structural breakdown diagram of the fixing mechanism in an embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the lighting mechanism and power supply control mechanism in an embodiment of the present invention.

[0028] Figure 8 This is a structural breakdown diagram of the lighting mechanism in an embodiment of the present invention.

[0029] Figure 9 This is a structural breakdown diagram of the power supply control mechanism in an embodiment of the present invention.

[0030] Figure 10 This is an exploded view of the power supply control mechanism in an embodiment of the present invention.

[0031] In the diagram: 1. Housing; 2. Fixing mechanism; 3. Placement bracket; 4. Back cover; 5. Lighting mechanism; 6. Power supply control mechanism; 7. Waterproof ring one; 11. Heat dissipation fins; 12. Light source cavity; 13. Battery cavity; 14. Heat insulation shielding layer; 15. Explosion-proof cavity; 21. Engaging gear disc one; 22. Engaging gear disc two; 23. Fixing screw; 24. Flat washer; 25. Elastic washer; 31. Anti-slip sleeve; 51. LED light board; 52. Floodlight lens; 53. Lamp head front cover; 54. Compression ring; 55. Tempered glass; 56. Waterproof sealing ring; 57. Connecting cable; 58. Tightening waterproof ring; 59. Tightening screw; 61. Lithium battery; 62. Locking bracket; 63. Driver board; 64. Waterproof connector; 65. Display screen; 66. Transparent cover; 67. Waterproof ring two; 68. Button; 69. Waterproof cap. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] In the embodiments of this invention, please refer to Figures 1 to 10 A portable explosion-proof work light includes a housing 1. Fixing mechanisms 2 are symmetrically arranged on both sides of the housing 1, and the fixing mechanisms 2 are connected to a placement bracket 3. A light source cavity 12 is located on the front side of the interior of the housing 1, and a battery cavity 13 is located on the rear side. A heat-insulating shielding layer 14 is provided between the light source cavity 12 and the battery cavity 13, isolating them. A connection hole is provided on the heat-insulating shielding layer 14. Explosion-proof cavities 15 are provided between the housing 1 and the light source cavity 12, and between the housing 1 and the battery cavity 13. A lighting mechanism 5 is installed inside the light source cavity 12, and a power supply control mechanism 6 is installed inside the battery cavity 13. The lighting mechanism 5 and the power supply control mechanism 6 are electrically connected via a connecting cable 57, which passes through the connection hole. A rear cover 4 is installed on the rear side of the housing 1, and the rear cover 4 is connected to the power supply control mechanism 6 and seals the battery cavity 13. A waterproof ring 7 is provided between the rear cover 4 and the housing 1.

[0034] A heat insulation shielding layer 14 and an independent explosion-proof cavity 15 are provided between the light source cavity 12 and the battery cavity 13, realizing physical isolation and thermal isolation: on the one hand, it prevents the heat from the light from being directly conducted to the power supply control mechanism 6; on the other hand, even if one cavity fails, it will not spread to the other cavity, realizing dual-level explosion-proof safety redundancy.

[0035] In this embodiment, the housing 1 is an integrated die-cast explosion-proof housing made of aluminum alloy with an explosion-proof rating of ExdIICT6Ga. Combined with a fully sealed structure, it meets national explosion-proof standards.

[0036] As one embodiment of the present invention, please refer to Figures 3 to 5 , Figure 7 and Figure 8 The connection hole is provided with a compression waterproof ring 58 and a compression screw 59. The connection cable 57 passes through the compression screw 59 and the compression waterproof ring 58 in sequence. The compression waterproof ring 58 abuts against the heat insulation shielding layer 14. The compression screw 59 is threadedly connected to the heat insulation shielding layer 14 and abuts against the compression waterproof ring 58.

[0037] The tight-fitting waterproof ring 58 and tight-fitting screw 59 effectively prevent gas or moisture from mixing between the light source cavity 12 and the battery cavity 13, improving the dual-cavity isolation and sealing performance. At the same time, the structure of the connecting cable 57 passing through the tight-fitting waterproof ring 58 and tight-fitting screw 59 ensures that the electrical path passing through the heat insulation shielding layer 14 also has explosion-proof and sealing performance.

[0038] As one embodiment of the present invention, please refer to Figures 1 to 5 The explosion-proof cavity 15 is filled with a high latent heat phase change energy storage material (such as industrial-grade paraffin composite graphene filler), and the shell 1 is integrally formed with heat dissipation fins 11.

[0039] This material can quickly absorb and store heat during high-power LED lighting, keeping the housing temperature rise within the safe range required by explosion-proof rating T6, and slowly release heat during lighting breaks or in low-temperature environments to achieve a constant temperature effect; the heat dissipation fins 11 are integrally formed with the housing 1, increasing the heat dissipation area and improving heat dissipation efficiency.

[0040] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 6 The fixing mechanism 2 includes: a first meshing toothed disc 21, a second meshing toothed disc 22, and a fixing screw 23. The first meshing toothed disc 21 is connected to the housing 1, the second meshing toothed disc 22 is connected to the placement bracket 3 and meshes with the first meshing toothed disc 21, the housing 1 is threadedly connected to the fixing screw 23, and the fixing screw 23 abuts against the placement bracket 3.

[0041] When the illumination angle needs to be adjusted, the user loosens the fixing screw 23 to disengage the first meshing gear 21 from the second meshing gear 22. Then, the user rotates the placement bracket 3 around the fixing screw 23 to the desired angle, and then tightens the fixing screw 23 to re-mesh and lock the two gears. Due to the meshing structure of the gears, the angle adjustment is precise and will not slip due to vibration after locking. The placement bracket 3 can be supported on the ground or used as a carrying handle.

[0042] In this embodiment, the placement bracket 3 has a certain deformation capability; the top of the placement bracket 3 is provided with an anti-slip sleeve 31 to improve the grip feel; the bottom of the placement bracket 3 is provided with an anti-slip and shock-absorbing pad to improve placement stability.

[0043] As one embodiment of the present invention, please refer to Figure 1 , Figure 2 and Figure 6 The fixing mechanism 2 further includes a flat washer 24 and an elastic washer 25, which are sleeved on the fixing screw 23 and located between the fixing screw 23 and the placement bracket 3.

[0044] As one embodiment of the present invention, please refer to Figure 1 , Figure 7 and Figure 8 The lighting mechanism 5 includes: an LED light panel 51, a floodlight lens 52, a lamp head front cover 53, a clamping ring 54, and tempered glass 55. The LED light panel 51 is connected to the housing 1 and electrically connected to the connecting cable 57. The floodlight lens 52 is connected to the housing 1 and is located in front of the LED light panel 51. The housing 1 is threadedly connected to the lamp head front cover 53. The inner wall of the lamp head front cover 53 is threadedly connected to the clamping ring 54. Tempered glass 55 is provided between the clamping ring 54 and the lamp head front cover 53.

[0045] The housing 1, the lamp head front cover 53, the tempered glass 55, and the rear cover 4 together constitute a high-strength explosion-proof enclosure. Even if the internal LED light board 51 or driver board 63 sparks or explodes, the flame will be fully cooled and extinguished when passing through the explosion-proof joint surfaces (such as threads and sealing surfaces), and will not ignite external flammable and explosive gases. After the LED light board 51 is powered on, it emits light, which is evenly diffused by the floodlight lens 52 and then emitted outward through the tempered glass 55 to form a large area of ​​floodlight illumination.

[0046] In this embodiment, the LED light board 51 adopts a high-power LED lamp bead array.

[0047] As one embodiment of the present invention, please refer to Figure 8 A waterproof sealing ring 56 is fitted on the lamp head front cover 53 to improve the sealing and waterproof performance at the connection between the lamp head front cover 53 and the housing 1.

[0048] As one embodiment of the present invention, a thermally conductive silicone heat dissipation layer is provided between the LED light board 51 and the heat insulation shielding layer 14 to improve the heat dissipation effect of the LED light board 51.

[0049] As one embodiment of the present invention, please refer to Figure 2 , Figure 7 , Figure 9 and Figure 10 The power supply control mechanism 6 includes: a lithium battery 61, a locking bracket 62, a drive board 63, a waterproof connector 64, a display screen 65, a transparent cover 66, and a button 68. The lithium battery 61 is fixed to the housing 1 by the locking bracket 62. The lithium battery 61 is electrically connected to the drive board 63, which is electrically connected to the connecting cable 57. The drive board 63 is mounted on the rear cover 4 and connected to the waterproof connector 64, which penetrates and connects to the rear cover 4. The drive board 63 is electrically connected to the display screen 65, which is mounted on the rear cover 4. The display screen 65 has a transparent cover 66 that penetrates the rear cover 4. The drive board 63 has a button 68 that penetrates the rear cover 4.

[0050] In this embodiment, a buffer shock-absorbing pad is provided between the locking bracket 62 and the housing 1; the waterproof connector 64 is an explosion-proof and waterproof charging port that supports fast charging and emergency charging; the drive board 63 is also integrated with an emergency lighting module, which is electrically connected to the drive board 63 and automatically switches to emergency lighting mode when the main power is cut off to ensure continuous lighting.

[0051] As one embodiment of the present invention, please refer to Figure 7 , Figure 9 and Figure 10 The button 68 is provided with a waterproof cap 69, which is sealed to the back cover 4. A waterproof ring 67 is provided between the transparent cover 66 and the back cover 4.

[0052] The working principle of this invention is as follows: power supply and lighting: the user starts the device by pressing button 68, the driver board 63 obtains power from the lithium battery 61, and after constant current driving, it is transmitted to the LED light board 51 through the connecting cable 57. After the LED light board 51 is powered on, it emits light. The light is evenly diffused by the floodlight lens 52 and then shines outward through the tempered glass 55 to form a large area of ​​floodlight lighting.

[0053] Conductive heat dissipation: The heat generated by the LED light board 51 during operation is first evenly conducted to the heat insulation shielding layer 14 and the front of the housing 1 through the thermally conductive silicone heat dissipation layer, and then radiated to the surrounding air through the outer surface of the housing 1 and the integrally formed heat dissipation fins.

[0054] Phase change energy storage with constant temperature: When the LED light panel 51 provides continuous high-power illumination, and the temperature of the housing 1 rises to the melting point of the phase change material, the high latent heat phase change energy storage material filled in the explosion-proof cavity 15 begins to undergo a phase change (solid to liquid state), absorbing a large amount of latent heat, thereby firmly locking the temperature of the housing 1 within the safe range required by the explosion-proof rating T6 (surface temperature not exceeding 85℃); when the lighting is turned off or the ambient temperature decreases, the phase change material slowly releases the stored heat and re-solidifies, achieving automatic constant temperature regulation; this mechanism effectively avoids excessive temperature rise of the housing due to prolonged lighting, eliminating the safety hazard of high temperature causing combustion and explosion.

[0055] Explosion-proof and isolation: The housing 1, the lamp holder front cover 53, the tempered glass 55, the rear cover 4, etc. together constitute a high-strength explosion-proof housing. Even if the internal LED light board 51 or driver board 63 sparks or explodes, the flame will be fully cooled and extinguished when passing through the explosion-proof joint surfaces (such as threads and sealing surfaces), and will not ignite external flammable and explosive gases. A heat insulation shielding layer 14 and an independent explosion-proof cavity 15 are provided between the light source cavity 12 and the battery cavity 13, realizing physical isolation and thermal isolation: on the one hand, preventing the LED heat from being directly conducted to the lithium battery 61; on the other hand, even if one cavity fails, it will not spread to the other cavity, realizing dual-level explosion-proof safety redundancy. The structure of the connecting cable 57 passing through the tight-fitting waterproof ring 58 and the tight-fitting screw 59 ensures that the electrical path passing through the heat insulation shielding layer 14 also has explosion-proof and sealing performance.

[0056] Angle adjustment and stable placement: When the irradiation angle needs to be adjusted, the user loosens the fixing screw 23 to disengage the first meshing toothed disc 21 from the second meshing toothed disc 22. Then, the placement bracket 3 is rotated around the fixing screw 23 to the desired angle, and the fixing screw 23 is tightened to re-mesh and lock the two toothed discs. Due to the meshing structure of the toothed discs, the angle adjustment is precise and will not slip due to vibration after locking. The placement bracket 3 can be supported on the ground or used as a handle.

[0057] Waterproof and dustproof: All mating surfaces of the machine (waterproof sealing ring 56 between lamp head front cover 53 and housing 1, waterproof ring 7 between rear cover 4 and housing 1, waterproof ring 67 between transparent cover 66 and rear cover 4, waterproof cap 69 on button 68, waterproof connector 64, etc.) are made of high-performance silicone rubber or fluororubber seals to ensure that the whole machine reaches the IP67 protection level and can be immersed in water for a short time without damage.

[0058] Charging and power display: An external power source is connected via a waterproof connector 64, and the charging management circuit within the driver board 63 safely charges the lithium battery 61. The display screen 65 shows the current battery level in real time, allowing users to easily monitor remaining battery life. The driver board 63 also integrates multiple protection circuits for overcharge, over-discharge, overcurrent, and short circuit to ensure battery safety.

[0059] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0060] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A portable explosion-proof work light, comprising a housing, characterized in that, The housing has symmetrical fixing mechanisms on both sides, which are connected to the placement bracket. A light source cavity is located on the front side of the housing, and a battery cavity is located on the rear side. A heat-insulating shielding layer is provided between the light source cavity and the battery cavity, and a connection hole is provided on the heat-insulating shielding layer. Explosion-proof cavities are provided between the housing and the light source cavity, and between the housing and the battery cavity. A lighting mechanism is installed inside the light source cavity, and a power supply control mechanism is installed inside the battery cavity. The lighting mechanism and the power supply control mechanism are electrically connected via a connecting cable that passes through the connection hole. A rear cover is installed on the rear side of the housing, which is connected to the power supply control mechanism and seals the battery cavity. A waterproof ring is provided between the rear cover and the housing.

2. A portable explosion-proof work light according to claim 1, characterized in that, The connection hole is provided with a compression waterproof ring and a compression screw. The connection cable passes through the compression screw and the compression waterproof ring in sequence. The compression waterproof ring abuts against the heat insulation shielding layer. The compression screw is threadedly connected to the heat insulation shielding layer and abuts against the compression waterproof ring.

3. A portable explosion-proof work light according to claim 1, characterized in that, The explosion-proof cavity is filled with a high latent heat phase change energy storage material, and the shell is integrally formed with heat dissipation fins.

4. A portable explosion-proof work light according to claim 1, characterized in that, The fixing mechanism includes: a first meshing toothed disc, a second meshing toothed disc, and a fixing screw. The first meshing toothed disc is connected to the housing, the second meshing toothed disc is connected to the placement bracket and meshes with the first meshing toothed disc, the housing is threadedly connected to the fixing screw, and the fixing screw abuts against the placement bracket.

5. A mobile explosion-proof work light according to claim 4, characterized in that, The fixing mechanism also includes a flat washer and an elastic washer, which are sleeved on the fixing screw and located between the fixing screw and the placement bracket.

6. A portable explosion-proof work light according to claim 1, characterized in that, The lighting mechanism includes: an LED light panel, a floodlight lens, a lamp head front cover, a clamping ring, and tempered glass. The LED light panel is connected to the housing and electrically connected to a connecting cable. The floodlight lens is connected to the housing and located in front of the LED light panel. The housing is threadedly connected to the lamp head front cover. The inner wall of the lamp head front cover is threadedly connected to the clamping ring. Tempered glass is provided between the clamping ring and the lamp head front cover.

7. A portable explosion-proof work light according to claim 6, characterized in that, A waterproof sealing ring is fitted on the front cover of the lamp head to improve the sealing and waterproof performance at the connection between the front cover of the lamp head and the housing.

8. A mobile explosion-proof work light according to claim 6, characterized in that, A thermally conductive silicone heat dissipation layer is provided between the LED light board and the heat insulation shielding layer to improve the heat dissipation effect of the LED light board.

9. A portable explosion-proof work light according to claim 1, characterized in that, The power supply control mechanism includes: a lithium battery, a locking bracket, a drive board, a waterproof connector, a display screen, a transparent cover, and buttons. The lithium battery is fixed to the housing by the locking bracket. The lithium battery is electrically connected to the drive board, which is electrically connected to a connecting cable. The drive board is mounted on the rear cover and connected to the waterproof connector, which penetrates and connects to the rear cover. The drive board is electrically connected to the display screen, which is mounted on the rear cover. The display screen has a transparent cover that penetrates the rear cover. The drive board has buttons that penetrate the rear cover.

10. A mobile explosion-proof work light according to claim 9, characterized in that, The button is equipped with a waterproof cap, which is sealed to the back cover. A second waterproof ring is provided between the transparent cover and the back cover.

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