A safety anti-explosion type mine lamp for underground coal mine personnel
By combining portable lighting and shockproof power supply mechanisms in underground coal mine lamps, using light sensors to adjust brightness, and equipping them with explosion-proof transparent covers and buffer components, the problems of rapid energy consumption and easy damage of mine lamps have been solved. This has enabled brightness adjustment and shock protection, extended battery life, and ensured safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JILIN INTELLIGENT CONTROL ELECTRONIC TECH CO LTD
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-29
Smart Images
Figure CN122107346A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of coal mine lamp technology, specifically referring to a safety explosion-proof mine lamp for underground coal mine personnel. Background Technology
[0002] Explosion-proof mining lamps are lighting tools specifically designed for hazardous environments such as coal mines, petroleum plants, and chemical plants where flammable and explosive gases (such as methane and coal dust) exist. Their core requirement is that they will not ignite the surrounding flammable gas mixture under any normal operating or approved fault conditions.
[0003] The existing explosion-proof mine lamps used by underground coal miners have the following problems: Existing explosion-proof mine lamps used in underground coal mines typically cannot adjust their illuminance in real time according to the ambient brightness underground, resulting in them remaining in a high-brightness state for extended periods, consuming energy too quickly, and having a short operating time. Furthermore, these lamps often lack effective impact-absorbing protection structures, making them prone to scratches, cracks, or even breakage when subjected to significant external forces such as coal and gangue underground, affecting their lighting function and posing safety hazards. Therefore, it cannot meet the current demand for safe and explosion-proof mining lamps. Summary of the Invention
[0004] In response to the above situation and to overcome the shortcomings of existing technologies, this solution provides a safety explosion-proof mine lamp for underground personnel in coal mines that can adjust the lighting brightness of the mine lamp in real time according to the brightness inside the mine, extend the lamp's battery life, and buffer and protect the lamp from external impacts, preventing the lamp from being scratched, cracked, or even broken under large impacts.
[0005] The technical solution adopted in this plan is as follows: A safety explosion-proof mine lamp for underground coal mine personnel includes a support frame, an energy storage box, a portable lighting mechanism, and an anti-impact power supply mechanism. The energy storage box is located on one side of the support frame, the portable lighting mechanism is located at the end of the support frame away from the energy storage box, and the anti-impact power supply mechanism is located on the upper wall of the portable lighting mechanism. The portable lighting mechanism includes an angle adjustment component, a carrying component, and a lighting component. The angle adjustment component is located on the upper wall of the support frame, the carrying component is located on the side of the support frame away from the energy storage box, and the lighting component is located on the upper wall of the angle adjustment component. The anti-impact power supply mechanism includes a buffer component, a power supply component, and a power-off component. The buffer component is located on the upper wall of the angle adjustment component on the side of the lighting component, the power supply component is located on the upper wall of the angle adjustment component on the side of the buffer component away from the lighting component, and the power-off component is located at the end of the angle adjustment component close to the power supply component.
[0006] As a further preferred embodiment of the present invention, the angle adjustment assembly includes a rotating shaft, a locking nut, and an angle adjustment bracket. The rotating shaft is located at the end of the support frame away from the energy storage box, and the angle adjustment bracket is rotatably located at the end of the rotating shaft away from the support frame. The locking nuts are symmetrically located at both ends of the rotating shaft and are threadedly connected to the rotating shaft. The carrying assembly includes a carrying plate and an arc-shaped spring plate. The carrying plate is located on the side of the support frame away from the energy storage box, and the arc-shaped spring plates are symmetrically located vertically on the side of the carrying plate away from the support frame. The lighting assembly includes an explosion-proof mine lamp and a power-connecting metal post. The explosion-proof mine lamp is located on the upper wall of the end of the angle adjustment bracket away from the support frame, and the power-connecting metal post is located at the power supply end of the explosion-proof mine lamp.
[0007] In use, the mine lamp is carried below the arm by the elastic deformation of the arc-shaped spring plate. The arc-shaped spring plate wraps around the outside of the body, and the support frame, through the angle adjustment frame, positions the explosion-proof mine lamp above the miner's head. Turning the locking nut causes it to rotate along the rotation axis away from the side wall of the angle adjustment frame, changing the angle adjustment frame from a fixed state to a movable state. The angle adjustment frame then adjusts the illumination angle of the explosion-proof mine lamp. After adjustment, turning the locking nut again causes it to rotate along the rotation axis closer to the side wall of the angle adjustment frame, changing the angle adjustment frame from a movable state to a fixed state, thus providing light for the miner during work.
[0008] Preferably, the buffer assembly includes a chute, an explosion-proof transparent cover, a sliding frame, a buffer spring, and an explosion-proof insulating telescopic sleeve. The chute is located on the upper wall of the end of the angle adjustment frame away from the explosion-proof mine lamp and is open at the top. The sliding frame is slidably disposed within the end of the chute away from the explosion-proof mine lamp. The explosion-proof transparent cover is located on the side of the sliding frame close to the explosion-proof mine lamp and on the outer side of the illumination end of the explosion-proof mine lamp. The explosion-proof insulating telescopic sleeve is located between the sliding frame and the explosion-proof mine lamp. The buffer spring is located between the sliding frame and the explosion-proof mine lamp on the outer side of the explosion-proof insulating telescopic sleeve and is in a shortened state. The power supply assembly includes a power supply sleeve, a power supply metal column, a power supply cable, an energy storage battery, and a light intensity sensor. The power supply sleeve is slidably disposed within the sliding frame. The moving frame and the explosion-proof insulating telescopic sleeve can slide relative to each other. The power supply metal column is located inside the power supply sleeve and is fitted against the side wall of the power-connecting metal column. The energy storage battery is located inside the energy storage box. The power supply cable passes through the energy storage box and is located at the power output end of the energy storage battery. The end of the power supply cable away from the energy storage battery is electrically connected to the side of the power supply metal column away from the power-connecting metal column. The light intensity sensor is located on the upper wall of the energy storage box. The power-off assembly includes a fixed magnetic ring, a sliding plate, and a power-off spring. The fixed magnetic ring is located on the inner wall of the slide groove on the side of the sliding frame away from the explosion-proof mining lamp. The sliding plate is slidably located on the inner wall of the slide groove on the side of the fixed magnetic ring close to the sliding frame. The power-off spring is located between the fixed magnetic ring and the sliding plate and is in an extended state.
[0009] In use, the explosion-proof transparent cover is located on the outside of the lighting end of the explosion-proof mine lamp to prevent direct impact from coal or gangue on the lighting end. When coal or gangue hits the lighting end of the explosion-proof mine lamp, the coal or gangue impacts the explosion-proof transparent cover on the outside of the lighting end. After being impacted, the explosion-proof transparent cover drives the sliding frame to slide along the slide groove and compress the buffer spring. The buffer spring absorbs the impact energy through elastic deformation. At this time, the distance between the explosion-proof transparent cover and the lighting end of the explosion-proof mine lamp is reduced, which buffers the impact force from the coal or gangue and reduces the probability of the explosion-proof mine lamp being scratched, cracked or even broken by external impact force.
[0010] Specifically, a controller is provided on the upper wall of the energy storage box.
[0011] The controller is electrically connected to both the explosion-proof mining lamp and the light intensity sensor.
[0012] The beneficial effects achieved by this solution using the above structure are as follows: Compared with existing technologies, this solution combines a portable lighting mechanism with an impact-resistant power supply mechanism. By incorporating an angle-adjusting component, a carrying component, a lighting component, a buffer component, a power supply component, and a power-off component, it can monitor the brightness of the mine's internal lighting in real time using a light intensity sensor. When encountering areas with fixed light sources within the mine where the brightness is relatively high, the solution automatically adjusts the brightness of the explosion-proof mine lamp, reducing energy consumption and thus increasing its runtime. Furthermore, the explosion-proof transparent cover provides protection against oncoming impacts. The system intercepts coal or gangue at the lighting end of the mine lamp to prevent scratches, cracks, or even breakage caused by impacts from the coal or gangue, thus ensuring the integrity of the explosion-proof mine lamp. When the coal or gangue impacts the explosion-proof transparent cover on the outside of the lighting end, the transparent cover moves the sliding frame along the chute and compresses the buffer spring. The buffer spring absorbs the impact energy through elastic deformation. At this time, the distance between the explosion-proof transparent cover and the lighting end of the explosion-proof mine lamp is reduced, thus buffering the impact force from the coal or gangue. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this solution; Figure 2 This is the front perspective stereoscopic view of this solution; Figure 3 This is a bottom-view perspective of the design. Figure 4 This is the main view of this solution; Figure 5 This is the left view of this scheme; Figure 6 This is the right view of the scheme; Figure 7 This is a top view of the plan; Figure 8 for Figure 7 Sectional view of AA section; Figure 9 for Figure 8 Enlarged structural view of section I; Figure 10 for Figure 1 Enlarged structural view of Part II.
[0014] The components are as follows: 1. Support frame; 2. Energy storage box; 3. Portable lighting mechanism; 4. Angle adjustment assembly; 5. Rotating shaft; 6. Locking nut; 7. Angle adjustment frame; 8. Carrying assembly; 9. Carrying plate; 10. Arc-shaped spring sheet; 11. Lighting assembly; 12. Explosion-proof mining lamp; 13. Power connection metal column; 14. Impact-resistant power supply mechanism; 15. Buffer assembly; 16. Slide chute; 17. Explosion-proof transparent cover; 18. Sliding frame; 19. Buffer spring; 20. Explosion-proof insulating telescopic sleeve; 21. Power supply assembly; 22. Power supply sleeve; 23. Power supply metal column; 24. Power supply cable; 25. Energy storage battery; 26. Light intensity sensor; 27. Power-off assembly; 28. Fixed magnetic ring; 29. Sliding plate; 30. Power-off spring; 31. Controller.
[0015] The accompanying drawings are provided to further understand the present solution and form part of the specification. They are used together with the embodiments of the present solution to explain the present solution and do not constitute a limitation thereof. Detailed Implementation
[0016] The technical solutions in this embodiment will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this solution, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this solution without creative effort are within the scope of protection of this solution.
[0017] In the description of this solution, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this solution and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this solution.
[0018] like Figures 1-10As shown, this solution proposes a safety explosion-proof mine lamp for underground coal mine personnel, comprising a support frame 1, an energy storage box 2, a portable lighting mechanism 3, and an anti-impact power supply mechanism 14. The energy storage box 2 is located on one side of the support frame 1, the portable lighting mechanism 3 is located at the end of the support frame 1 away from the energy storage box 2, and the anti-impact power supply mechanism 14 is located on the upper wall of the portable lighting mechanism 3. The portable lighting mechanism 3 includes an angle adjustment component 4, a carrying component 8, and a lighting component 11. The angle adjustment component 4 is located on the support frame 1. The upper wall of the support frame 1 is provided with the carrying component 8 on the side away from the energy storage box 2. The lighting component 11 is provided on the upper wall of the angle adjustment component 4. The anti-impact power supply mechanism 14 includes a buffer component 15, a power supply component 21 and a power cut-off component 27. The buffer component 15 is provided on the upper wall of the angle adjustment component 4 on the side of the lighting component 11. The power supply component 21 is provided on the upper wall of the angle adjustment component 4 on the side of the buffer component 15 away from the lighting component 11. The power cut-off component 27 is provided at the end of the angle adjustment component 4 near the power supply component 21.
[0019] The angle adjustment assembly 4 includes a rotating shaft 5, a locking nut 6, and an angle adjustment frame 7. The rotating shaft 5 is located at the end of the support frame 1 away from the energy storage box 2. The angle adjustment frame 7 is rotatably located at the end of the rotating shaft 5 away from the support frame 1. The locking nuts 6 are symmetrically located at both ends of the rotating shaft 5 and are threadedly connected to the rotating shaft 5. The carrying assembly 8 includes a carrying plate 9 and an arc-shaped spring sheet 10. The carrying plate 9 is located on the side of the support frame 1 away from the energy storage box 2. The arc-shaped spring sheet 10 is symmetrically located vertically on the side of the carrying plate 9 away from the support frame 1. The lighting assembly 11 includes an explosion-proof mine lamp 12 and a power-connecting metal post 13. The explosion-proof mine lamp 12 is located on the upper wall of the end of the angle adjustment frame 7 away from the support frame 1. The power-connecting metal post 13 is located at the power supply end of the explosion-proof mine lamp 12.
[0020] The buffer assembly 15 includes a slide groove 16, an explosion-proof transparent cover 17, a sliding frame 18, a buffer spring 19, and an explosion-proof insulating telescopic sleeve 20. The slide groove 16 is located on the upper wall of the end of the angle adjusting frame 7 away from the explosion-proof mine lamp 12, and is open at the top. The sliding frame 18 is slidably disposed within the end of the slide groove 16 away from the explosion-proof mine lamp 12. The explosion-proof transparent cover 17 is located on the side of the sliding frame 18 close to the explosion-proof mine lamp 12. On the outside of the 12 lighting end, the explosion-proof insulating telescopic sleeve 20 is disposed between the sliding frame 18 and the explosion-proof mine lamp 12. The buffer spring 19 is disposed between the sliding frame 18 and the explosion-proof mine lamp 12 on the outside of the explosion-proof insulating telescopic sleeve 20, and the buffer spring 19 is in a shortened state. The power supply component 21 includes a power supply sleeve 22, a power supply metal column 23, a power supply cable 24, an energy storage battery 25, and a light intensity sensor 26. The power supply sleeve 22 is slidably disposed between the sliding frame 18 and the explosion-proof insulating telescopic sleeve 20, and can slide relative to each other. The power supply metal column 23 is disposed inside the power supply sleeve 22 and is fitted against the side wall of the power-connected metal column 13. The energy storage battery 25 is disposed inside the energy storage box 2. The power supply cable 24 passes through the energy storage box 2 and is disposed at the power output end of the energy storage battery 25. The end of the power supply cable 24 away from the energy storage battery 25 is electrically connected to the side of the power supply metal column 23 away from the power-connected metal column 13. The light intensity sensor 26... The intensity sensor 26 is installed on the upper wall of the energy storage box 2; the power-off assembly 27 includes a fixed magnetic ring 28, a sliding plate 29 and a power-off spring 30. The fixed magnetic ring 28 is installed on the inner wall of the slide groove 16 on the side of the sliding frame 18 away from the explosion-proof mine lamp 12. The sliding plate 29 is slidably installed on the inner wall of the slide groove 16 on the side of the fixed magnetic ring 28 close to the sliding frame 18. The power-off spring 30 is installed between the fixed magnetic ring 28 and the sliding plate 29, and the power-off spring 30 is in an extended state.
[0021] The upper wall of the energy storage box 2 is equipped with a controller 31.
[0022] The controller 31 is electrically connected to the explosion-proof mining lamp 12 and the light intensity sensor 26, respectively.
[0023] In actual use, in the initial state, the power-off spring 30 is in the extended state, the power-connecting metal column 13 is in contact with the power-supplying metal column 23, the energy storage battery 25 supplies power to the power-supplying metal column 23 through the power supply cable 24, and the power-supplying metal column 23 supplies power to the explosion-proof mining lamp 12 through the power-connecting metal column 13. Through the elastic deformation of the arc-shaped spring plate 10, the support frame 1 is carried on the back of the body below the arm. The arc-shaped spring plate 10 wraps around the outside of the body. The support frame 1 drives the explosion-proof mine lamp 12 to be placed above the miner's head through the angle adjustment frame 7. The miner raises his arm and rotates the locking nut 6. The locking nut 6 rotates along the rotating shaft 5 away from the side wall of the angle adjustment frame 7. The angle adjustment frame 7 changes from a fixed state to a movable state. The angle adjustment frame 7 drives the explosion-proof mine lamp 12 to adjust the lighting angle. After the adjustment is completed, the locking nut 6 is rotated. The locking nut 6 rotates along the rotating shaft 5 and moves closer to the side wall of the angle adjustment frame 7. The angle adjustment frame 7 changes from a movable state to a fixed state. The controller 31 controls the explosion-proof mine lamp 12 to start. The explosion-proof mine lamp 12 provides lighting for the mine working environment. The controller 31 controls the light intensity sensor 26 to start. The light intensity sensor 26 monitors the light intensity of the external environment through the detection end. When encountering an area with a fixed light source inside the mine, the light inside the mine is brighter. At this time, after receiving the light intensity information fed back by the light intensity sensor 26, the controller 31 controls the brightness of the explosion-proof mine lamp 12 to be reduced, thereby achieving the purpose of energy-saving lighting and extending the battery life of the explosion-proof mine lamp 12. The explosion-proof transparent cover 17 is located outside the lighting end of the explosion-proof mine lamp 12. It is used to prevent coal or gangue from directly impacting the lighting end of the explosion-proof mine lamp 12. When coal or gangue impacts the lighting end of the explosion-proof mine lamp 12, the coal or gangue collides with the explosion-proof transparent cover 17 outside the lighting end of the explosion-proof mine lamp 12. Under the deformation of the buffer spring 19, the explosion-proof transparent cover 17 pushes the sliding frame 18 to slide along the slide groove 16. At this time, the distance between the explosion-proof transparent cover 17 and the lighting end of the explosion-proof mine lamp 12 is reduced, which buffers the impact force brought by the coal or gangue, reduces the probability of the explosion-proof mine lamp 12 being scratched, cracked or even broken by external impact force, and ensures the stable operation of the explosion-proof mine lamp 12. When the impact force of external coal or gangue is large, the explosion-proof transparent cover 17 moves closer to the lighting end of the explosion-proof mine lamp 12 through the elastic deformation of the buffer spring 19 under the impact force of the coal or gangue. In order to prevent the lighting end of the explosion-proof mine lamp 12 from breaking due to excessive impact force, and thus generating electric sparks that come into contact with the flammable and explosive environment and cause danger, at this time, the explosion-proof transparent cover 17 is in contact with the lighting end of the explosion-proof mine lamp 12. The explosion-proof transparent cover 17 drives the explosion-proof insulating telescopic sleeve 20 to extend through the sliding frame 18. The sliding frame 18 slides along the power supply sleeve 22 and contacts the sliding plate 29. The sliding plate 29 uses the elastic deformation of the power-off spring 30 to drive the power supply metal column 23 away from the side wall of the power-connected metal column 13 through the power supply sleeve 22. The explosion-proof mine lamp 12 loses the power supply of the power supply metal column 23 and goes out. After receiving the signal that the explosion-proof mine lamp 12 is off, the controller 31 controls the fixed magnetic ring 28 to start. The fixed magnetic ring 28 is energized and generates magnetism. The fixed magnetic ring 28 uses magnetism to attract the sliding plate 29, keeping the explosion-proof transparent cover 17 in contact with the lighting end of the explosion-proof mine lamp 12. After the personnel carrying the lamp confirm that the lighting end of the explosion-proof mine lamp 12 is undamaged, the controller 31 controls the fixed magnetic ring 28 to be de-energized. The de-energized spring 30 elastically resets and drives the sliding plate 29 to slide along the slide groove 16. The sliding plate 29 drives the power supply metal column 23 to be in contact with the power-connected metal column 13 again, and the explosion-proof mine lamp 12 lights up again. For subsequent use, the above operation steps can be repeated.
[0024] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] The present solution and its implementation methods have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present solution; the actual structure is not limited to this. In conclusion, if a person skilled in the art, inspired by this description, designs a similar structure and embodiment without departing from the inventive intent of this solution, such design should fall within the protection scope of this solution.
Claims
1. A safety explosion-proof mine lamp for underground coal mine personnel, comprising a support frame and an energy storage box, characterized in that: It also includes a portable lighting mechanism and an anti-impact power supply mechanism. The energy storage box is located on one side of the support frame. The portable lighting mechanism includes an angle adjustment component and a lighting component. The angle adjustment component is located on the upper wall of the support frame, and the lighting component is located on the upper wall of the angle adjustment component. The anti-impact power supply mechanism includes a buffer component and a power-off component. The buffer component is located on the upper wall of the angle adjustment component on the side of the lighting component, and the power-off component is located at the end of the angle adjustment component near the power supply component. The angle adjustment assembly includes an angle adjustment bracket; Lighting components include explosion-proof mining lamps; The buffer assembly includes a chute, an explosion-proof transparent cover, a sliding frame, a buffer spring, and an explosion-proof insulating telescopic sleeve; The chute is located on the upper wall of the end of the angle adjustment frame away from the explosion-proof mine lamp. The sliding frame is slidably located inside the end of the chute away from the explosion-proof mine lamp. The explosion-proof transparent cover is located on the side of the sliding frame close to the explosion-proof mine lamp. The explosion-proof transparent cover is located on the outside of the lighting end of the explosion-proof mine lamp. The explosion-proof insulating telescopic sleeve is located between the sliding frame and the explosion-proof mine lamp. The buffer spring is located between the sliding frame and the explosion-proof mine lamp on the outside of the explosion-proof insulating telescopic sleeve. The power-off assembly includes a fixed magnetic ring, a sliding plate, and a power-off spring; The fixed magnetic ring is located on the inner wall of the chute on the side of the sliding frame away from the explosion-proof mining lamp, and the sliding plate is slidably located on the inner wall of the chute on the side of the fixed magnetic ring close to the sliding frame. The power-off spring is located between the fixed magnetic ring and the sliding plate.
2. The explosion-proof mine lamp for underground coal mine personnel according to claim 1, characterized in that: The portable lighting mechanism also includes a carrying component, which is located on the side of the support frame away from the energy storage box. The anti-impact power supply mechanism also includes a power supply component, which is located on the upper wall of the angle adjustment component on the side of the buffer component away from the lighting component.
3. The explosion-proof mine lamp for underground coal mine personnel according to claim 1, characterized in that: The angle adjustment assembly also includes a rotating shaft and a locking nut. The rotating shaft is located at the end of the support frame away from the energy storage box, and the angle adjustment frame is rotatably located at the end of the rotating shaft away from the support frame. The locking nuts are symmetrically located at both ends of the rotating shaft.
4. The explosion-proof mine lamp for underground coal mine personnel according to claim 3, characterized in that: The locking nut is threadedly connected to the rotating shaft.
5. A safety explosion-proof mine lamp for underground coal mine personnel according to claim 3, characterized in that: The carrying assembly includes a carrying plate and an arc-shaped spring sheet. The carrying plate is located on the side of the support frame away from the energy storage box, and the arc-shaped spring sheet is symmetrically arranged vertically on the side of the carrying plate away from the support frame.
6. The explosion-proof mine lamp for underground coal mine personnel according to claim 1, characterized in that: The lighting assembly also includes a power-connecting metal post, and the explosion-proof mining lamp is located on the upper wall of the end of the angle adjustment frame away from the support frame, with the power-connecting metal post located at the power supply end of the explosion-proof mining lamp.
7. A safety explosion-proof mine lamp for underground coal mine personnel according to claim 6, characterized in that: The power supply assembly includes a power supply sleeve, a power supply metal column, an energy storage battery, a power supply cable, and a light intensity sensor. The power supply sleeve is slidably disposed between a sliding frame and an explosion-proof insulated telescopic sleeve, and slides relative to each other. The power supply metal column is disposed inside the power supply sleeve and is fitted against the side wall of the power-connected metal column. The energy storage battery is disposed inside the energy storage box. The power supply cable passes through the energy storage box and is disposed at the power output end of the energy storage battery. The end of the power supply cable away from the energy storage battery is electrically connected to the side of the power supply metal column away from the power-connected metal column. The light intensity sensor is disposed on the upper wall of the energy storage box.
8. A safety explosion-proof mine lamp for underground coal mine personnel according to claim 7, characterized in that: The upper wall of the energy storage box is equipped with a controller, which is electrically connected to the explosion-proof mining lamp and the light intensity sensor.
9. A safety explosion-proof mine lamp for underground coal mine personnel according to claim 1, characterized in that: The buffer spring is in a shortened state, and the power-off spring is in a stretched state.
10. A safety explosion-proof mine lamp for underground coal mine personnel according to claim 1, characterized in that: The groove is open at the top.