An explosion-proof LED lamp

Abstract

The present application relates to the field of explosion-proof lamp, specifically provides a kind of explosion-proof LED lamp, explosion-proof LED lamp includes lamp shell, quick interface, emitting group and transparent cover plate, light-emitting cavity is equipped in lamp shell, emitting group is fixed with LED light-emitting plate, quick interface is located inside lamp shell, transparent cover plate sealingly connects light-emitting cavity mouth portion.Quick interface is composed of interface shell, movable block and plug, movable block is sealingly slid in interface shell inside, shell bottom is equipped with first contact group, movable block inside is equipped with second contact group, plug contains third contact group, and is sealingly inserted with movable block, shell bottom is equipped with compression spring and is abutted with movable block, and another limiting piece fixes movable block position.The present application realizes the step-by-step conduction of electrical connection by setting sealing sliding structure, first completes the isolation connection of external circuit and internal circuit, then connects main circuit, effectively avoids the explosion risk caused by spark leakage in operation process, and compact structure, convenient maintenance.

Description

Technical Field

[0001] This invention relates to the field of explosion-proof lights, and more particularly to an explosion-proof LED light. Background Technology

[0002] Explosion-proof LED lights, as an important type of lighting equipment, are widely used in hazardous locations such as petroleum, chemical, and coal mines where flammable and explosive gases and dust exist. Their safety performance is directly related to the safety of production operations. In existing technologies, when installing or replacing explosion-proof LED lights, it is usually necessary to directly connect the external input wire to the internal electrical components of the lamp body. The specific operation generally involves: first disconnecting the external power supply, opening the explosion-proof housing, and then manually tightening screws to fix the input wire to the internal terminals to complete the circuit connection.

[0003] However, the aforementioned traditional wiring methods have significant drawbacks: firstly, the wiring process is cumbersome, requiring manual alignment and tightening, which is time-consuming, especially in confined spaces or scenarios where frequent lamp replacement is necessary, resulting in low work efficiency and poor convenience; secondly, if operators neglect to disconnect the power supply or make mistakes during the power-off operation, electric sparks can easily be generated when the wires come into contact with the terminals during the wiring process. In explosion-proof environments, flammable media can easily ignite upon contact with these sparks, posing a serious safety hazard. Therefore, this application proposes an explosion-proof LED lamp. Summary of the Invention

[0004] The purpose of this invention is to provide an explosion-proof LED light to solve the problems of inconvenient replacement and safety issues associated with current explosion-proof LED lights.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] An explosion-proof LED lamp includes a lamp housing, a quick-connect interface, a light-emitting assembly, and a transparent cover. The lamp housing contains a light-emitting cavity, and the light-emitting assembly has an LED light-emitting panel fixed within the cavity. The transparent cover is sealed to the opening of the light-emitting cavity. The quick-connect interface is located inside the lamp housing and includes an interface shell, a movable block, a plug, and a compression spring. A first contact group is located at the bottom of the interface shell. The movable block is slidably connected to the interior of the interface shell along its axis, and its outer side is sealed to the inner side of the interface shell. A second contact group is located inside the movable block, with interfaces at both ends. Limiting elements are also provided on the interface shell and the movable block to fix its position. The first contact group is electrically connected to the LED light-emitting panel via a wire. A third contact group is located inside the plug, and the plug and the ends of the movable block are inserted into and sealed. The two ends of the compression spring abut against the interface shell and the movable block.

[0007] Furthermore, the limiting member includes a guide groove located on the inner wall of the interface housing and a limiting protrusion located outside the movable block. The guide groove is spiral-shaped, and a limiting groove is provided at one end of the guide groove near the bottom of the interface housing. The limiting groove extends along the axis of the interface housing toward the opening of the interface housing. The limiting protrusion is slidably connected to the inner side of the guide groove.

[0008] Furthermore, multiple guide grooves and multiple limiting protrusions are provided. The multiple guide grooves are evenly distributed along the circumference of the interface shell, and the multiple limiting protrusions correspond to and cooperate with the guide grooves one by one.

[0009] Furthermore, a sealing groove is provided on the outer side of the movable block, and a contact sealing ring is provided in the sealing groove. The contact sealing ring is located between the movable block and the interface shell.

[0010] Furthermore, the opening of the interface housing is provided with a limiting ball, and the outside of the plug is provided with multiple spiral grooves. The spiral grooves extend along the axial direction of the plug and are interference-fitted with the limiting ball. The pitch of the spiral grooves is the same as the pitch of the guide grooves.

[0011] Furthermore, a first isolation ring is provided at the bottom of the interface housing to isolate the electrode post and the first electrode ring on the first contact group. The first isolation ring is located inside the first electrode ring.

[0012] Furthermore, the height of the first isolation ring is greater than the protrusion height of the electrode post and the first electrode ring.

[0013] Furthermore, the second contact group includes a first electrode sleeve and a second electrode ring that respectively cooperate with the electrode post and the first electrode ring. The movable block is also provided with a second isolation ring, which is a double-layered annular protrusion. The first electrode sleeve is located in the innermost region, the second electrode ring is located in the middle region, and the compression spring is sleeved in the outer region. When the first contact group and the second contact group are connected, the second isolation ring is inserted into the first isolation ring.

[0014] Furthermore, the opening of the light-emitting cavity is provided with a two-stage annular step structure. The inner step is provided with a second sealing ring, which is a high-temperature resistant rubber sealing gasket. The edge of the transparent cover plate is fixed to the outer step by adhesive bonding.

[0015] Furthermore, the lamp housing includes a lower housing and an upper housing, with the light-emitting cavity located inside the lower housing; the upper housing is disposed on the side of the lower housing away from the light-emitting cavity, and the upper housing is fixedly connected to the lower housing, with its end away from the lower housing fixedly connected to the quick-connect interface; a heat-conducting sleeve is also provided on the side of the lower housing away from the light-emitting cavity, the outer diameter of the heat-conducting sleeve being the same as the inner diameter of the upper housing, and the heat-conducting sleeve being tightly attached to the inner wall of the upper housing.

[0016] In summary, the present invention has the following advantages compared with the prior art:

[0017] The explosion-proof LED light disclosed in this invention achieves step-by-step electrical connection by setting a sealed sliding structure. First, the external circuit and the internal circuit are isolated and connected, and then the main circuit is connected. This effectively avoids the risk of explosion caused by spark leakage during operation. It is suitable for flammable and explosive environments such as coal mines and chemical plants, and has a compact structure and is easy to maintain. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the explosion-proof LED lamp disclosed in an embodiment of the present invention.

[0019] Figure 2 This is a front view of the explosion-proof LED lamp disclosed in an embodiment of the present invention.

[0020] Figure 3 for Figure 2 Sectional view of AA.

[0021] Figure 4 This is a front view of the quick-access interface in the explosion-proof LED lamp disclosed in an embodiment of the present invention.

[0022] Figure 5 for Figure 4 A cross-sectional view of BB.

[0023] Figure 6 This is an exploded view of the explosion-proof LED lamp disclosed in an embodiment of the present invention.

[0024] Figure label:

[0025] 100. Lamp housing; 110. Lower housing; 111. First heat dissipation fin; 112. Partition plate; 113. Heat-conducting sleeve; 114. Light-emitting cavity; 120. Upper housing; 121. Second heat dissipation fin; 130. First sealing ring; 140. Second sealing ring; 150. Third sealing ring; 200. Quick-connect interface; 210. Interface housing; 211. Guide groove; 212. Limiting groove; 213. Flange plate; 214. Limiting ball; 215. First isolation ring; 220. Movable block; 221. Slot; 222. Isolation post; 223. Limiting element. 224. Protrusion; 225. Sealing groove; 230. Second isolation ring; 231. Plug; 232. Connecting section; 233. Spiral groove; 240. First contact group; 241. Electrode post; 242. First electrode ring; 250. Second contact group; 251. First electrode sleeve; 252. Second electrode ring; 253. Third electrode sleeve; 254. Fourth electrode sleeve; 260. Third contact group; 270. Compression spring; 280. Contact sealing ring; 300. Light-emitting group; 310. LED light-emitting panel; 320. Power module; 400. Transparent cover plate. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Figures 1 to 3As shown, an embodiment of the present invention provides an explosion-proof LED lamp, which includes a lamp housing 100, a quick-connect interface 200, a light-emitting assembly 300, and a transparent cover plate 400. A light-emitting cavity 114 is provided inside the lamp housing 100. An LED light-emitting board 310 is fixedly mounted inside the light-emitting assembly 300 within the light-emitting cavity 114. The quick-connect interface 200 is fixedly connected to one end of the lamp housing 100 away from the light-emitting cavity 114 and is located inside the lamp housing 100. The transparent cover plate 400 is sealed to the opening of the light-emitting cavity 114. The quick-connect interface 200 includes an interface housing 210, a movable block 220, and a plug 230. The interface housing 210 is a cylindrical shape with an opening at one end. The movable block 220 is slidably connected to the interface housing 210 along its axis. The interface housing 210 is sealed to the outside of the movable block 220 and the inside of the interface housing 210. The bottom of the interface housing 210 is provided with a first contact group 240, and the inside of the movable block 220 is provided with a second contact group 250. The second contact group 250 is provided with interfaces at both ends of the movable block 220. The plug 230 is provided with a third contact group 260. The plug 230 and the end of the movable block 220 are inserted and sealed. The bottom of the interface housing 210 is also provided with a compression spring 270. The two ends of the compression spring 270 abut against the interface housing 210 and the movable block 220. The interface housing 210 and the movable block 220 are also provided with limiting members to fix the position of the movable block 220. The first contact group 240 is electrically connected to the LED light-emitting panel 310 through wires.

[0028] In this embodiment, when replacing the explosion-proof lamp, the plug 230 connected to the wire is inserted into the movable block 220. At this time, the third contact group 260 and the second contact group 250 are in contact and electrically connected. The plug 230 and the movable block 220 are sealed together. Pressing the plug 230 presses the movable block 220 into the inner side of the interface housing 210. The first contact group 240 and the second contact group 250 are in contact. Since the interface housing 210 and the movable block 220 are sealed, the limiting member inside the interface housing 210 fixes the movable block 220, so that the first contact group 240 and the second contact group 250 remain connected. When contact group 250 and the third contact group 260 are connected, the second contact group 250 and the first contact group 240 are not in contact. No sparks will be generated when the second contact group 250 and the third contact group 260 are connected. However, when the first contact group 240 and the second contact group 250 are connected, the interface housing 210 and the movable block 220 are sealed together, and the inside and outside of the interface housing 210 are isolated. Even if an electric spark is generated during the contact process between the first contact group 240 and the second contact group 250 due to the power not being cut off, it will not ignite external dust, thus improving the safety during the replacement process. At the same time, since the movable block 220 and the plug 230 adopt a quick-connect and quick-disconnect structure to connect external wires, the replacement efficiency of the explosion-proof lamp is also improved.

[0029] The explosion-proof LED light disclosed in this invention achieves step-by-step electrical connection by setting a sealed sliding structure. First, the external circuit and the internal circuit are isolated and connected, and then the main circuit is connected. This effectively avoids the risk of explosion caused by spark leakage during operation. It is suitable for flammable and explosive environments such as coal mines and chemical plants, and has a compact structure and is easy to maintain.

[0030] Specifically, in this embodiment, the lamp housing 100 includes a lower housing 110 and an upper housing 120. The lower housing 110 is the lamp body shell, made of high-strength aluminum alloy material, and the surface is anodized, which has good corrosion resistance and heat dissipation performance. The light-emitting cavity 114 is located inside the lower housing 110. The upper housing 120 is disposed on the side of the lower housing 110 away from the light-emitting cavity 114. The upper housing 120 is a cylindrical structure with a large opening at one end and a small opening at the other end. The large opening of the upper housing 120 is fixedly connected to the lower housing 110 by bolts, and its small opening is fixedly connected to the quick-connect interface 200 by bolts. A sealed cavity is formed inside the upper housing 120, which together with the quick-connect interface 200 constitutes an explosion-proof cavity, effectively blocking the internal electric arc from the external flammable environment. The upper housing 120 has a straight cylindrical structure with a smooth inner wall and an anti-static coating to further enhance safety performance. A third sealing ring 150 is provided at the connection between the upper housing 120 and the quick interface 200 to ensure the airtightness of the connection. It can maintain a stable seal under vibration or impact conditions to prevent flammable gases from entering the cavity and facilitate disassembly and maintenance.

[0031] A first sealing ring 130 is provided at the connection between the lower housing 110 and the upper housing 120. The first sealing ring 130 is a high-temperature resistant rubber gasket, which is fastened between the contact surfaces of the lower housing 110 and the upper housing 120. It effectively prevents external dust and moisture from entering the lamp body. At the same time, it has excellent anti-aging and anti-compression properties and maintains elastic sealing effect in environments ranging from -40℃ to +85℃, ensuring the long-term stable operation of the explosion-proof structure.

[0032] Preferably, the opening of the light-emitting cavity 114 is provided with a two-stage annular stepped structure. A second sealing ring 140 is provided on the inner step, which is a high-temperature resistant rubber sealing gasket. The edge of the transparent cover plate 400 is fixed to the outer step by adhesive bonding. The second sealing ring 140 is pressed between the transparent cover plate 400 and the lower housing 110, ensuring reliable sealing between the transparent cover plate 400 and the lamp body, effectively preventing external flammable materials from entering the lamp body and causing danger. The transparent cover plate 400 is made of high-strength tempered glass with a light transmittance of not less than 95%. It is coated with an anti-reflective coating to improve light output efficiency and possesses high-temperature resistance and impact resistance, maintaining integrity and functionality even in extreme environments, further enhancing the overall safety level and service life of the lamp.

[0033] Preferably, the lower housing 110 is provided with a first heat dissipation fin 111 on its outer side, and the upper housing 120 is provided with a second heat dissipation fin 121 on its outer side. The first heat dissipation fin 111 and the second heat dissipation fin 121 are symmetrically distributed sheet structures, both of which are integrally formed with the main body to improve structural strength and heat conduction efficiency. The first heat dissipation fin 111 and the second heat dissipation fin 121 extend axially to form an efficient heat dissipation channel, enhance air convection, effectively reduce the internal temperature of the lamp body, and extend the service life of the light source and electronic components.

[0034] Preferably, a heat-conducting sleeve 113 is also provided on the side of the lower housing 110 away from the light-emitting cavity 114. The outer diameter of the heat-conducting sleeve 113 is the same as the inner diameter of the upper housing 120. The heat-conducting sleeve 113 is in close contact with the inner wall of the upper housing 120, so as to realize the heat transfer from the lower housing 110 to the upper housing 120. The high thermal conductivity of the metal material is used to quickly dissipate the heat and avoid local overheating that may cause safety hazards.

[0035] Preferably, thermal grease is also applied between the thermally conductive sleeve 113 and the quick-connect interface 200 to further reduce the interface thermal resistance and improve heat dissipation efficiency.

[0036] Preferably, a partition 112 is provided between the heat-conducting sleeve 113 and the light-emitting cavity 114. The partition 112 is used to isolate the internal space of the upper housing 120 and the lower housing 110, and the LED light-emitting plate 310 is fixedly connected to the partition 112.

[0037] The light-emitting group 300 is existing technology. It includes an LED light-emitting panel 310 and a power module 320. The LED light-emitting panel 310 is fixedly connected to the partition 112. The LED light-emitting panel 310 represents a conventional light source structure. The power module 320 is a drive circuit module that integrates constant current control and overvoltage protection functions to ensure stable operation of the light source under voltage fluctuations. It also features a temperature self-monitoring feedback mechanism, automatically reducing output power when the internal temperature of the lamp exceeds a preset threshold to prevent overheating damage. The power module 320 is fixedly connected to the inside of the upper housing 120. The LED light-emitting panel 310 and the power module 320 are electrically connected via wires to achieve power transmission and signal interaction, ensuring rapid start-up response and stable brightness of the light source.

[0038] like Figures 4 to 6As shown, the interface housing 210 is a cylindrical structure with an opening at one end. A flange plate 213 is provided at the opening end. The flange plate 213 is fixedly connected to the small end opening of the upper housing 120 by bolts. A third sealing ring 150 is provided between the flange plate 213 and the upper housing 120 to ensure the airtightness and mechanical stability of the connection and effectively prevent external moisture and dust from entering.

[0039] The first contact group 240 includes an electrode post 241 and a first electrode ring 242. The electrode post 241 is a copper post structure, and the first electrode ring 242 is a copper ring structure. The electrode post 241 and the first electrode ring 242 are embedded in the bottom of the interface housing 210. The first electrode ring 242 and the interface housing 210 are coaxially arranged. The electrode post 241 and the first electrode ring 242 are provided with electrical connection terminals on the outside of the interface housing 210 and are electrically connected to the power module 320.

[0040] The movable block 220 has a cylindrical structure. A slot 221 is provided at one end of the movable block 220 that connects to the plug 230. An isolation post 222 is provided inside the slot 221. The second contact group 250 includes a first electrode sleeve 251 and a second electrode ring 252. Both the first electrode sleeve 251 and the second electrode ring 252 are annular structures. The first electrode sleeve 251 is located at one end of the movable block 220 near the bottom of the interface housing 210. A third electrode sleeve 253 is connected to the first electrode sleeve 251 inside the isolation post 222. The second electrode ring 252 is located inside the isolation post 222. A fourth electrode sleeve 254 is provided. Both the third electrode sleeve 253 and the fourth electrode sleeve 254 are copper tubes. The second electrode ring 252 is a copper tube structure and a copper ring structure. The first electrode sleeve 251 cooperates with the electrode post 241, and the second electrode ring 252 cooperates with the first electrode ring 242. The third contact group 260 consists of two metal needle-like structures. The third contact group 260 is located inside the plug 230. The two needle-like structures of the third contact group 260 are electrically connected to the third electrode sleeve 253 and the fourth electrode sleeve 254 to form a conductive circuit, ensuring that the current is stably input into the light-emitting group 300.

[0041] The movable block 220 and the plug 230 are manufactured by injection molding. The second contact group 250 is embedded inside the movable block 220, and the third contact group 260 is embedded inside the plug 230. Both the movable block 220 and the plug 230 are made of insulating plastic, which has excellent electrical insulation performance and structural strength, ensuring long-term stable operation in harsh environments such as high humidity and high dust.

[0042] Preferably, the movable block 220 is further provided with a second isolation ring 225. The second isolation ring 225 is a double-layered annular protrusion. The first electrode sleeve 251 is located in the innermost region, the second electrode ring 252 is located in the middle region, and the compression spring 270 is sleeved in the outer region. The second isolation ring 225 effectively isolates regions with different potentials, prevents creepage and short circuits, and improves insulation reliability. A first isolation ring 215 is also provided between the electrode post 241 and the first electrode ring 242. When the first contact group 240 and the second contact group 250 are connected, the first isolation ring 215 is a ring-shaped structure. The first isolation ring 215 is located inside the first electrode ring 242, and the second isolation ring 225 is inserted into the first isolation ring 215 to achieve precise alignment and electrical isolation, further enhancing connection safety.

[0043] Preferably, the height of the first isolation ring 215 is greater than the protrusion height of the electrode post 241 and the first electrode ring 242, ensuring that isolation is completed before the first contact group 240 and the second contact group 250 come into contact during the assembly process, effectively avoiding the risk of high voltage breakdown.

[0044] The limiting components are a guide groove 211 provided on the inner wall of the interface housing 210 and a limiting protrusion 223 provided on the outside of the movable block 220. The guide groove 211 is spiral-shaped and penetrates / does not penetrate the side wall of the interface housing 210. The limiting protrusion 223 is slidably connected to the inner side of the guide groove 211. A limiting groove 212 is provided at one end of the guide groove 211 near the bottom of the interface housing 210. The limiting groove 212 extends along the axis of the interface housing 210 toward the opening of the interface housing 210. The movable block 220... When the movable block 220 slides along the axis of the interface housing 210 to the bottom of the interface housing 210, the movable block 220 rotates synchronously. The limiting protrusion 223 slides inside the guide groove 211 until it slides to the limiting groove 212. Under the action of the compression spring 270, the compression spring 270 pushes the limiting protrusion 223 into the limiting groove 212, realizing the axial limiting and circumferential locking of the movable block 220 and the interface housing 210, preventing the connection from loosening due to vibration or external force. At this time, the first contact group 240 and the second contact group 250 are connected. When the first contact group 240 and the second contact group 250 are disconnected, the movable block 220 is pressed and rotated in the opposite direction, so that the limiting protrusion 223 disengages from the limiting groove 212 and slides in the opposite direction along the guide groove 211, releasing the axial locking, thereby realizing the rapid separation of the first contact group 240 and the second contact group 250.

[0045] Multiple guide grooves 211 and multiple limiting protrusions 223 are provided. The limiting protrusions 223 are cylindrical protrusions located on the outside of the movable block 220. The multiple guide grooves 211 are evenly distributed along the circumference of the interface shell 210, and the multiple limiting protrusions 223 correspond one-to-one with the guide grooves 211 to ensure uniform distribution of circumferential locking force and improve the stability and torsional resistance of the connection structure.

[0046] Preferably, a sealing groove 224 is provided on the outer side of the movable block 220, and a contact sealing ring 280 is provided in the sealing groove 224. The contact sealing ring 280 is located between the movable block 220 and the interface housing 210 and is used to seal the interface housing 210 and the movable block 220.

[0047] The plug 230 has a cylindrical structure, and a connecting section 231 is provided at the end of the plug 230. The connecting section 231 has a ring structure. When the plug 230 is inserted into the movable block 220, the connecting section 231 is inserted into the inside of the slot 221, and the exposed part of the third contact group 260 is located inside the connecting section 231.

[0048] Preferably, the opening of the interface housing 210 is further provided with a limiting ball 214, and the outside of the plug 230 is provided with a plurality of spiral grooves 232. The spiral grooves 232 extend along the axial direction of the plug 230 and are interference-fitted with the limiting ball 214. The pitch of the spiral grooves 232 is the same as the pitch of the guide grooves 211 to ensure rotational synchronization during assembly and avoid jamming or incomplete assembly due to pitch differences. Multiple spiral grooves 232 and multiple limiting balls 214 are provided, and they are evenly distributed circumferentially. During connection, the connecting segment 231 is first inserted into the inner side of the slot 221, and then the plug 230 is rotated. The plug 230 moves synchronously into the interior of the interface housing 210, and the movable block 220 is pressed into the interior of the interface housing 210. At this time, the limiting protrusion 223 slides along the guide groove 211 and gradually enters the limiting groove 212. The compression spring 270 is compressed and generates elastic deformation. The limiting ball 214 slides in the spiral groove 232 until it is fully screwed into place. The limiting ball 214 is used to axially limit the plug 230 to prevent it from loosening under vibration.

[0049] The terminology used in this invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular forms “a,” “the,” and “the” used in this invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0050] It should be understood that although the terms first, second, third, etc., may be used in this invention to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, first information may also be referred to as second information without departing from the scope of this invention, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to a determination."

[0051] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof LED lamp, comprising a lamp housing, a quick-connect interface, a light-emitting assembly, and a transparent cover, wherein a light-emitting cavity is provided inside the lamp housing, an LED light-emitting panel is fixed inside the light-emitting cavity in the light-emitting assembly, the transparent cover is sealed to the opening of the light-emitting cavity, and the quick-connect interface is located inside the lamp housing, characterized in that, The shortcut interface includes: An interface housing, wherein a first contact group is provided at the bottom of the interface housing; A movable block is slidably connected to the interior of the interface housing along the axis of the interface housing, and the outer side of the movable block and the inner side of the interface housing are sealed together. A second contact group is provided on the inner side of the movable block, and the second contact group is provided with interfaces at both ends of the movable block. Limiting components are also provided on the interface housing and the movable block to fix the position of the movable block. The first contact group is electrically connected to the LED light-emitting board through wires. A sealing groove is also provided on the outer side of the movable block, and a contact sealing ring is provided in the sealing groove. The contact sealing ring is located between the movable block and the interface housing. A plug, wherein a third contact group is provided inside the plug, and the ends of the plug and the movable block are inserted into and sealed; A compression spring, the two ends of which abut against the interface housing and the movable block.

2. The explosion-proof LED lamp according to claim 1, characterized in that, The limiting component includes: A guide groove is located on the inner wall of the interface housing. The guide groove is spiral-shaped. A limiting groove is provided at one end of the guide groove near the bottom of the interface housing. The limiting groove extends along the axis of the interface housing towards the opening of the interface housing. A limiting protrusion located outside the movable block is slidably connected to the inside of the guide groove.

3. The explosion-proof LED lamp according to claim 2, characterized in that, The guide groove is provided in multiple ways, and the limiting protrusion is provided in multiple ways. The multiple guide grooves are evenly distributed along the circumference of the interface shell, and the multiple limiting protrusions correspond to and cooperate with the guide grooves one by one.

4. The explosion-proof LED lamp according to claim 2, characterized in that, The opening of the interface housing is also provided with a limiting ball, and the outside of the plug is provided with multiple spiral grooves. The spiral grooves extend along the axial direction of the plug and are interference-fitted with the limiting ball. The pitch of the spiral grooves is the same as the pitch of the guide grooves.

5. The explosion-proof LED lamp according to any one of claims 1-4, characterized in that, The bottom of the interface housing is provided with a first isolation ring for isolating the electrode post and the first electrode ring on the first contact group. The first isolation ring is located inside the first electrode ring.

6. The explosion-proof LED lamp according to claim 5, characterized in that, The height of the first isolation ring is greater than the protrusion height of the electrode post and the first electrode ring.

7. The explosion-proof LED lamp according to claim 5, characterized in that, The second contact group includes a first electrode sleeve and a second electrode ring that respectively cooperate with the electrode post and the first electrode ring. The movable block is also provided with a second isolation ring. The second isolation ring is a double-layered annular protrusion. The first electrode sleeve is located in the innermost region, the second electrode ring is located in the middle region, and the compression spring is sleeved in the outer region. When the first contact group and the second contact group are connected, the second isolation ring is inserted into the first isolation ring.

8. The explosion-proof LED lamp according to any one of claims 1-4, characterized in that, The opening of the light-emitting cavity is provided with a two-stage annular step structure. The inner step is provided with a second sealing ring and a high-temperature resistant rubber sealing gasket. The edge of the transparent cover plate is fixed to the outer step by adhesive bonding.

9. The explosion-proof LED lamp according to any one of claims 1-4, characterized in that, The lamp housing includes: The lower housing, wherein the light-emitting cavity is located within the lower housing; An upper housing is disposed on the side of the lower housing opposite to the light-emitting cavity, and the upper housing is fixedly connected to the lower housing, with the end of the upper housing opposite to the lower housing fixedly connected to the quick-access interface; A heat-conducting sleeve is also provided on the side of the lower housing away from the light-emitting cavity. The outer diameter of the heat-conducting sleeve is the same as the inner diameter of the upper housing, and the heat-conducting sleeve is tightly attached to the inner wall of the upper housing.

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