Safety helmet for underground mining operations

Abstract

This utility model discloses a safety helmet for underground mining operations. The helmet includes a helmet body, an inner liner fixedly attached to the lower side of the helmet body, a cushioning sponge installed inside the helmet body, a fixed shell fixedly attached to the helmet body, a lighting lamp fixedly attached to the front side of the fixed shell, and a lampshade installed on the front side of the fixed shell. The lighting lamp is located inside the lampshade. A curved cavity is provided inside the fixed shell, and a transparent strip is provided within the curved cavity. The transparent strip is slidably connected to the outside of the lampshade. This utility model uses the output shaft of a motor to drive a rotating roller on the left side to rotate. The two rotating rollers are connected by gear transmission, and the two rotating rollers rotate in different directions. The transparent strip rotates counterclockwise, causing the transparent strip, free of dust inside the fixed shell, to move to the outside of the lampshade. By changing the position of the transparent strip, the light emitted by the lighting lamp is prevented from being obstructed, ensuring the brightness of the lighting.

Description

Technical Field

[0001] This utility model relates to the field of safety helmet technology for underground mining, and more specifically, it relates to a safety helmet for underground mining operations. Background Technology

[0002] Mining helmets are mandatory personal protective equipment designed and worn by workers in underground mining environments to protect their heads. Their core function is to provide effective cushioning and protection against potential impacts from falling rocks, boulders, accidental collisions, or falling tools, minimizing the risk of head injury. Furthermore, the helmet is equipped with a mining headlamp or flashlight to ensure workers have sufficient, hands-free illumination in dimly lit underground tunnels.

[0003] However, existing safety helmets used in underground mining operations have certain shortcomings and need to be improved:

[0004] 1. Although existing mine safety helmets are equipped with lights, the underground working environment generally has extremely high concentrations of dust. During prolonged underground work, a thick layer of dust inevitably accumulates on the surface of the lights on the helmets. This attached dust does not completely block light, but rather causes strong diffuse reflection and scattering effects. As a result, the light emitted by the lamps is scattered extensively and disorderly as it penetrates the dust layer, leading to a decrease in the intensity of the beam effectively projected onto the work area. This significantly increases the difficulty for workers to identify the environment, operate equipment, and ensure safety, thereby increasing the operational risks.

[0005] 2. When the helmet lights become dim due to dust accumulation, workers often have to pause their critical tasks to restore necessary illumination. They need to remove their helmets or awkwardly adjust their posture to carefully wipe the dust off the light cover. This cleaning process itself is time-consuming and significantly reduces work efficiency in the mine.

[0006] 3. Currently, the methods for cleaning the lights on safety helmets are limited and have limited effectiveness. They usually only involve workers manually wiping the surface of the lampshade. The above cleaning methods cannot guarantee the brightness of the lights, and since the safety helmet is worn on the worker's head, the dust that is cleaned may fall into the worker's neck, causing discomfort.

[0007] Therefore, to address the aforementioned technical problems, it is necessary to develop a safety helmet for underground mining operations. Utility Model Content

[0008] (a) Technical problems to be solved

[0009] In view of the problems existing in the prior art, this utility model provides a safety helmet for underground mining operations, so as to solve the technical problem mentioned in the background art that dust adheres to the lighting lamp of the safety helmet, reducing the lighting brightness.

[0010] (II) Technical Solution

[0011] To achieve the above objectives, this utility model provides the following technical solution: a safety helmet for underground mining operations, comprising a helmet body, an inner liner fixedly connected to the lower side of the helmet body, a cushioning sponge installed inside the helmet body, a fixed shell fixedly connected to the helmet body, a lighting lamp fixedly connected to the front side of the fixed shell, a lampshade installed on the front side of the fixed shell, the lighting lamp located inside the lampshade, a curved cavity provided inside the fixed shell, a transparent strip provided inside the curved cavity of the fixed shell, the transparent strip slidably connected to the outside of the lampshade, a control button installed on the fixed shell, a driving structure provided on one side of the fixed shell, and a cleaning structure provided on the rear side of the fixed shell.

[0012] The present invention is further configured such that the lampshade is curved, and the outer side of the lampshade is provided with arc-shaped protrusions.

[0013] The present invention is further provided that the top of the cap body is provided with a protrusion, and the protrusion of the cap body is provided with a ventilation hole.

[0014] The present invention is further configured such that the driving structure includes two fixed frames, the two fixed frames are fixedly connected to the upper and lower sides of the fixed shell, the fixed shell is provided with a through groove, a rotating roller is rotatably connected between the two fixed frames, the two rotating rollers are located in the through groove of the fixed shell, and the transparent strip is located between the two rotating rollers.

[0015] The present invention is further configured such that both of the rotating rollers are fixedly connected to gears, the two gears mesh with each other, the two rotating rollers press against both sides of the transparent strip, and the fixed shell is fixedly connected to a motor by a mounting bracket, the output end of the motor being fixedly connected to one of the rotating rollers.

[0016] The present invention is further configured such that the cleaning structure includes a connecting shell, the connecting shell communicates with the curved cavity of the fixed shell, an annular frame is fixedly connected to the upper side of the connecting shell, a second motor is fixedly connected to the annular frame, a cleaning roller is rotatably connected to the connecting shell, the cleaning roller is fixedly connected to the output shaft of the second motor, and the cleaning roller contacts the transparent strip.

[0017] The present invention is further configured such that the output shaft of the second motor is fixedly connected to a fan blade, and the fan blade is located on the upper side of the cleaning roller.

[0018] (III) Beneficial Effects

[0019] Compared with the prior art, this utility model provides a safety helmet for underground mining operations, which has the following beneficial effects:

[0020] 1. This utility model uses the output shaft of motor one to drive the left rotating roller to rotate. The two rotating rollers are connected by gear transmission and rotate in different directions. The two rotating rollers drive the transparent strip to rotate counterclockwise along the curved cavity of the fixed shell. The counterclockwise rotation of the transparent strip moves the transparent strip inside the fixed shell, which is free of dust, to the outside of the lampshade. By changing the position of the transparent strip, the light emitted by the lighting lamp is prevented from being obstructed, thus ensuring the lighting brightness of the lighting lamp.

[0021] 2. This utility model allows workers to rotate the transparent strip counterclockwise simply by pressing a control button, changing its position without stopping their work, thus ensuring the lighting intensity and the progress of underground mining operations.

[0022] 3. The high-speed rotation of the cleaning roller in this utility model cleans the dust adhering to the transparent strip, thereby maintaining the light transmittance of the transparent strip; when the fan blades rotate, air flows upward from below the connecting shell, and through the impact of the airflow, the airflow carries away the dust remaining on the transparent strip, while cleaning the dust on the cleaning roller, improving the cleaning effect of the cleaning roller on the transparent strip. The dust moves upward with the airflow, preventing the cleaned dust from falling into the worker's collar, thereby improving the practicality of this safety helmet. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the front structure of a safety helmet for underground mining operations according to the present invention;

[0024] Figure 2 This is a bottom view schematic diagram of the structure of a safety helmet for underground mining operations according to this utility model;

[0025] Figure 3 This is a schematic diagram of the structure of the fixing shell and the lighting lamp in this utility model;

[0026] Figure 4 This is a cross-sectional view of the fixed shell in this utility model;

[0027] Figure 5 This is a schematic diagram of the rotating roller and motor in this utility model;

[0028] Figure 6 This is a schematic diagram of the cleaning roller and fan blades in this utility model.

[0029] In the diagram: 1. Cap body; 2. Lining; 3. Cushioning sponge; 4. Fixing shell; 5. Lighting lamp; 6. Lampshade; 7. Transparent strip; 8. Control button; 9. Fixing frame; 10. Rotating roller; 11. Gear; 12. Motor 1; 13. Connecting shell; 14. Ring frame; 15. Motor 2; 16. Cleaning roller; 17. Fan blade. Detailed Implementation

[0030] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0032] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0033] Please see Figures 1-4 A safety helmet for underground mining operations includes a helmet body 1, an inner liner 2 fixedly connected to the lower side of the helmet body 1, a cushioning sponge 3 installed inside the helmet body 1, a fixed shell 4 fixedly connected to the helmet body 1, a lighting lamp 5 fixedly connected to the front side of the fixed shell 4, a lampshade 6 installed on the front side of the fixed shell 4, the lighting lamp 5 being located inside the lampshade 6, a curved cavity provided inside the fixed shell 4, a transparent strip 7 provided inside the curved cavity of the fixed shell 4, the transparent strip 7 being slidably connected to the outside of the lampshade 6, a control button 8 installed on the fixed shell 4, a drive structure provided on one side of the fixed shell 4, and a cleaning structure provided on the rear side of the fixed shell 4.

[0034] Please see Figure 4 The lampshade 6 is curved, and the outer side of the lampshade 6 is provided with arc-shaped protrusions; the lampshade 6 is curved so that the transparent strip 7 fits against the outer side of the lampshade 6, and the arc-shaped protrusions on the outer side of the lampshade 6 are used to guide the transparent strip 7.

[0035] Please see Figure 1 The top of the cap body 1 is provided with a protrusion, and the protrusion of the cap body 1 is provided with a ventilation hole; this improves the cushioning capacity of the cap body 1 and allows heat to be discharged from the head through the ventilation hole, thereby improving the comfort of the staff.

[0036] Please see Figure 3 and Figure 5The drive structure includes two fixed frames 9, which are fixed to the upper and lower sides of the fixed shell 4. The fixed shell 4 is provided with a through groove. A rotating roller 10 is rotatably connected between the two fixed frames 9. The two rotating rollers 10 are located in the through groove of the fixed shell 4. The transparent strip 7 is located between the two rotating rollers 10. Both rotating rollers 10 are fixed to gears 11. The two gears 11 mesh with each other. The two rotating rollers 10 are pressed against both sides of the transparent strip 7. A motor 12 is fixed to the fixed shell 4 through a mounting bracket. The output end of the motor 12 is fixed to one of the rotating rollers 10.

[0037] Specifically, in this embodiment, when working underground in the mine, the lighting lamp 5 is turned on. The light emitted by the lighting lamp 5 passes through the lampshade 6 and the transparent strip 7 on the outside of the lampshade 6. After a long period of work, dust accumulated during the work process will adhere to the transparent strip 7 on the outside of the lampshade 6. Then, the control button 8 is pressed, and the motor 12 is started. The output shaft of the motor 12 drives the left rotating roller 10 to rotate. The two rotating rollers 10 are driven by gear 11 and rotate in different directions. The two rotating rollers 10 drive the transparent strip 7 to rotate counterclockwise along the curved cavity of the fixed shell 4. The counterclockwise rotation of the transparent strip 7 moves the transparent strip 7 inside the fixed shell 4, which is free of dust, to the outside of the lampshade 6. Then, the motor 12 stops rotating. By changing the position of the transparent strip 7, the light emitted by the lighting lamp 5 is prevented from being obstructed, ensuring the brightness of the lighting lamp 5. At the same time, it is not necessary for the workers to stop working to clean the dust on the lighting lamp 5, thus ensuring the progress of the work underground in the mine.

[0038] Please see Figure 4 and Figure 6 The cleaning structure includes a connecting shell 13, which communicates with the curved cavity of the fixed shell 4. An annular frame 14 is fixedly connected to the upper side of the connecting shell 13, and a second motor 15 is fixedly connected to the annular frame 14. A cleaning roller 16 is rotatably connected to the connecting shell 13. The cleaning roller 16 is fixedly connected to the output shaft of the second motor 15 and contacts the transparent strip 7. A fan blade 17 is fixedly connected to the output shaft of the second motor 15 and is located on the upper side of the cleaning roller 16.

[0039] Specifically, in this embodiment, when the transparent strip 7 moves along the curved cavity of the fixed shell 4, the transparent strip 7 with dust moves to the rear. When the control button 8 is pressed, the second motor 15 starts at the same time. The second motor 15 drives the cleaning roller 16 to rotate. The cleaning roller 16 rotates at high speed to clean the dust attached to the transparent strip 7, thereby maintaining the light transmittance of the transparent strip 7.

[0040] When the cleaning roller 16 rotates at high speed, the motor 15 simultaneously drives the fan blade 17 to rotate. When the fan blade 17 rotates, air flows upward from below the connecting shell 13. Through the impact of the airflow, the airflow carries away the dust remaining on the transparent strip 7 and cleans the dust on the cleaning roller 16, improving the cleaning effect of the cleaning roller 16 on the transparent strip 7. The dust moves upward with the airflow, preventing the cleaned dust from falling into the worker's collar, thereby improving the practicality of this safety helmet.

[0041] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A safety helmet for underground mining operations, comprising a helmet body (1), wherein an inner liner (2) is fixedly connected to the lower side of the helmet body (1), and a cushioning sponge (3) is installed inside the helmet body (1), characterized in that: The cap body (1) is fixedly connected to a fixed shell (4). A lighting lamp (5) is fixedly connected to the front side of the fixed shell (4). A lampshade (6) is installed on the front side of the fixed shell (4). The lighting lamp (5) is located inside the lampshade (6). A curved cavity is provided inside the fixed shell (4). A transparent strip (7) is provided inside the curved cavity of the fixed shell (4). The transparent strip (7) is slidably connected to the outside of the lampshade (6). A control button (8) is installed on the fixed shell (4). A driving structure is provided on one side of the fixed shell (4). A cleaning structure is provided on the rear side of the fixed shell (4).

2. The safety helmet for underground mining operations according to claim 1, characterized in that: The lampshade (6) is curved, and the outer side of the lampshade (6) is provided with arc-shaped protrusions.

3. The safety helmet for underground mining operations according to claim 2, characterized in that: The top of the cap (1) is provided with a protrusion, and the protrusion of the cap (1) is provided with a ventilation hole.

4. A safety helmet for underground mining operations according to claim 3, characterized in that: The driving structure includes two fixed frames (9), which are fixed to the upper and lower sides of the fixed shell (4). The fixed shell (4) is provided with a through groove. A rotating roller (10) is rotatably connected between the two fixed frames (9). The two rotating rollers (10) are located in the through groove of the fixed shell (4). The transparent strip (7) is located between the two rotating rollers (10).

5. A safety helmet for underground mining operations according to claim 4, characterized in that: Both of the rotating rollers (10) are fixed to the gears (11), the two gears (11) mesh with each other, the two rotating rollers (10) are pressed against both sides of the transparent strip (7), the fixed shell (4) is fixed to the motor (12) by the mounting bracket, and the output end of the motor (12) is fixed to one of the rotating rollers (10).

6. A safety helmet for underground mining operations according to claim 1, characterized in that: The cleaning structure includes a connecting shell (13), which communicates with the curved cavity of the fixed shell (4). An annular frame (14) is fixedly connected to the upper side of the connecting shell (13), and a second motor (15) is fixedly connected to the annular frame (14). A cleaning roller (16) is rotatably connected to the connecting shell (13), and the cleaning roller (16) is fixedly connected to the output shaft of the second motor (15). The cleaning roller (16) contacts the transparent strip (7).

7. A safety helmet for underground mining operations according to claim 6, characterized in that: The output shaft of the second motor (15) is fixedly connected to a fan blade (17), which is located on the upper side of the cleaning roller (16).

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