Mining safety helmet with noise reduction function

Abstract

The utility model relates to the field of mining safety helmets, and discloses a mining safety helmet with a noise reduction function, which comprises a helmet body, two sides of the helmet body are fixedly connected with noise reduction earmuffs through sliding assemblies, the inner sides of the noise reduction earmuffs are fixedly connected with attaching cotton rings, sliding grooves are formed in the noise reduction earmuffs, and the sliding grooves are communicated with the noise reduction earmuffs. The inner side of the sliding groove is elastically connected with a connecting circular plate through a reset spring, the outer side of the connecting circular plate is fixedly connected with a button, the inner side of the connecting circular plate is fixedly connected with an extrusion ring, the interior of the noise reduction earmuff is slidably connected with an inner ear sound insulation assembly, and the outer side of the inner ear sound insulation assembly is fixedly connected with a limiting cylinder. According to the utility model, the connecting circular plate, the limiting circle, the extrusion ring and the press button are arranged, and the extrusion ring extrudes the limiting block, so that the inner ear sound insulation assembly can be conveniently taken down, the inner ear sound insulation assembly in contact with the inner ear is ensured to be clean, the ear canal is ensured not to be polluted, and the health of miners is ensured.

Description

Technical Field

[0001] The utility model relates to the field of mining helmets, in particular to a mining helmet with a noise reduction function. Background Art

[0002] Mining helmets are protective equipment designed for miners and underground engineering personnel to protect their heads. Mining helmets are widely used in related industries such as electricity, coal, petroleum, chemicals, chemicals, gas manufacturing, metal mining, etc. that require flame retardant and antistatic places. The helmets currently used are generally manufactured only to protect the safety of employees' heads and have a wide range of uses. Many production sites use ordinary helmets, but these helmets cannot protect employees' hearing when used in a very noisy environment. For workers working in mines, long-term work in mines with high noise intensity will seriously damage their hearing.

[0003] After searching, Chinese patent announcement number: CN206612266U discloses a mining safety helmet, including a helmet body and a safety belt. External ear covers are provided on both sides of the helmet body. An inner ear assembly is provided in the external ear covers. The inner ear assembly includes an inner ear plug that slides and fits in the outer ear cover along the central axis of the outer ear cover, and a pusher that is rotatably connected to the outer ear cover and applies force to the inner ear plug to realize the movement of the inner ear plug. The inner ear plug is coaxially connected to a guide rod, which is passed through and slidably connected to the pusher. The pusher is provided with a spiral inclined surface. A push spring is provided at one end of the guide rod away from the inner ear plug. The bolt inclined surface abuts against the outer wall of the guide rod. The push spring is connected to the inner wall of the external ear cover at one end away from the guide rod. The utility model provides a mining safety helmet that can improve the noise reduction and sound insulation effects.

[0004] Although this technical solution uses outer earmuffs and inner ear plugs to protect the hearing of mine workers, in actual use, the working environment of mine workers is poor and is filled with coal ash dust. The inner ear plugs will be contaminated with a lot of coal ash when used for a long time. The use of inner ear plugs in contact with the ear canal for a long time will cause ear canal inflammation. The inner ear plugs are irreplaceable and can easily affect the health of mine workers. Therefore, a mining safety helmet with noise reduction function is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a mining safety helmet with noise reduction function, aiming to improve the problem in the prior art that the inner ear plug is in contact with the ear canal for a long time and is prone to infect the ear canal.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a mining safety helmet with noise reduction function, comprising a cap body, noise reduction earmuffs are fixedly connected to both sides of the cap body through a sliding assembly, a fitting cotton ring is fixedly connected to the inner side of the noise reduction earmuffs, a sliding groove is provided inside the noise reduction earmuffs, a connecting circular plate is elastically connected to the inner side of the sliding groove through a reset spring, a button is fixedly connected to the outer side of the connecting circular plate, an extrusion ring is fixedly connected to the inner side of the connecting circular plate, an inner ear sound insulation assembly is slidably connected to the inside of the noise reduction earmuffs, a limiting cylinder is fixedly connected to the outer side of the inner ear sound insulation assembly, a limiting groove is provided inside the limiting cylinder, a truncated cone is elastically connected to the inner side of the limiting groove through a limiting spring, and the outer peripheral surface of the truncated cone contacts the limiting block.

[0007] As a further description of the above technical solution:

[0008] The sliding assembly includes an adjustment seat, the inner side of which is fixedly connected to the left and right sides of the cap body, a T-shaped slot is provided inside the adjustment seat, a threaded column is rotatably connected inside the adjustment seat, a knob is fixedly connected to the outer side of the threaded column, a T-shaped block is threadedly connected to the outer periphery of the threaded column, and the bottom end of the T-shaped block is fixedly connected to the top end of the noise reduction earmuff.

[0009] As a further description of the above technical solution:

[0010] One end of the return spring is fixedly connected to the inner side of the sliding groove, and the other end of the return spring is fixedly connected to the inner side of the connecting circular plate. The outer periphery of the connecting circular plate is slidably connected to the inside of the sliding groove.

[0011] As a further description of the above technical solution:

[0012] The inner ear sound insulation component comprises an inner ear sound insulation board, and a skin-friendly cotton pad is fixedly connected to the inner side of the inner ear sound insulation board.

[0013] As a further description of the above technical solution:

[0014] The outer periphery of the button is slidably connected to the inside of the noise reduction earmuff, and the outer periphery of the limiting cylinder is slidably connected to the inside of the noise reduction earmuff.

[0015] As a further description of the above technical solution:

[0016] One end of the limit spring is fixedly connected to the inner side of the limit groove, the other end of the limit spring is fixedly connected to the inner side of the truncated table, and the outer periphery of the truncated table is slidably connected to the inside of the limit groove.

[0017] As a further description of the above technical solution:

[0018] The outer periphery of the limit block is slidably connected to the inside of the limit cylinder, the outer side of the limit block is set as an inclined surface, the inner side of the extrusion ring is set as an inclined surface, and the inner side inclined surface of the extrusion ring contacts the outer side inclined surface of the limit block.

[0019] As a further description of the above technical solution:

[0020] The outer periphery of the T-block is slidably connected inside the T-slot.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by setting a connecting circular plate, a limiting circle and a squeezing ring, the button is pressed, and the squeezing ring squeezes the limiting block, so that the inner ear sound insulation component can be easily removed, thereby ensuring that the inner ear sound insulation component in contact with the inner ear is relatively clean, ensuring that the ear canal will not be contaminated, and ensuring the health of the miners.

[0023] 2. In the utility model, by setting a T-block and a threaded column, the position of the noise reduction earmuff can be conveniently adjusted by turning the knob, so that the fitting cotton ring fits the side face of the user, thereby adapting to more different face shapes, ensuring the sound sealing isolation, and having a better use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall front view of a mining helmet with noise reduction function proposed by the utility model;

[0025] Figure 2 This is a front cross-sectional schematic diagram of a noise reduction earmuff of a mining safety helmet with noise reduction function proposed by the utility model;

[0026] Figure 3 This is an enlarged schematic diagram of the front section A of a noise reduction earmuff of a mining safety helmet with noise reduction function proposed by the utility model;

[0027] Figure 4 This is a front cross-sectional schematic diagram of a limiting cylinder of a mining safety helmet with noise reduction function proposed by the utility model;

[0028] Figure 5 The utility model is a front cross-sectional schematic diagram of an adjustment seat of a mining safety helmet with a noise reduction function.

[0029] Legend:

[0030] 1. Cap body; 2. Noise reduction earmuffs; 3. Fitting cotton ring; 4. Sliding groove; 5. Reset spring; 6. Connecting round plate; 7. Button; 8. Extrusion ring; 9. Inner ear soundproofing board; 10. Skin-friendly cotton pad; 11. Limiting cylinder; 12. Limiting groove; 13. Limiting spring; 14. Round table; 15. Limiting block; 16. T-block; 17. Adjusting seat; 18. T-slot; 19. Threaded column; 20. Knob. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-Figure 3 The utility model provides an embodiment: a mining safety helmet with noise reduction function, comprising a cap body 1, noise-reducing earmuffs 2 for reducing noise are fixedly connected to both sides of the cap body 1 through sliding components, two groups of noise-reducing earmuffs 2 are arranged, symmetrically arranged on both sides of the cap body 1, the inside of the noise-reducing earmuffs 2 is filled with noise-reducing cotton, the inside of the noise-reducing earmuffs 2 is fixedly connected with a fitting cotton ring 3 that fits the facial skin and improves the sealing performance, a sliding groove 4 is opened inside the noise-reducing earmuffs 2, the inside of the sliding groove 4 is elastically connected with a connecting circular plate 6 through a reset spring 5, a plurality of reset springs 5 ​​are arranged, and the ring-shaped reset springs 5 ​​are evenly distributed inside the sliding groove 4, and the reset springs 5 ​​are arranged in groups. One end is fixedly connected to the inner side of the sliding groove 4, and the other end of the return spring 5 is fixedly connected to the inner side of the connecting circular plate 6. When the connecting circular plate 6 is not subjected to force, the return spring 5 will push the connecting circular plate 6 to move outward, and the outer periphery of the connecting circular plate 6 is slidably connected to the inside of the sliding groove 4. A button 7 is fixedly connected to the outer side of the connecting circular plate 6. When the button 7 is pressed, the button 7 will push the connecting circular plate 6 inward, and the outer periphery of the button 7 is slidably connected to the inside of the noise reduction earmuff 2. An extrusion ring 8 is fixedly connected to the inner side of the connecting circular plate 6. An inner ear sound insulation component is slidably connected to the inside of the noise reduction earmuff 2, and the inner ear sound insulation component fits the inner ear to reduce the noise received by the inner ear.

[0033] Reference Figure 2-Figure 3The inner ear sound insulation component includes an inner ear sound insulation board 9, the inner side of the inner ear sound insulation board 9 is fixedly connected with a skin-friendly cotton pad 10 in contact with the inner ear, the outer side of the inner ear sound insulation component is fixedly connected with a limiting cylinder 11, the outer periphery of the limiting cylinder 11 is slidably connected to the inside of the noise reduction earmuff 2, the outer side of the limiting cylinder 11 is not in contact with the inner side of the connecting circular plate 6, and there is a certain space for the connecting circular plate 6 to move to the right, a limiting groove 12 is provided inside the limiting cylinder 11, and a round table 14 is elastically connected to the inner side of the limiting groove 12 through a limiting spring 13. When the round table 14 is not subjected to force, the limiting spring 13 will push the round table 14 to move outward, and the limiting spring 13 One end is fixedly connected to the inner side of the limit groove 12, and the other end of the limit spring 13 is fixedly connected to the inner side of the table 14. The outer periphery of the table 14 is slidably connected to the inside of the limit groove 12. The outer periphery of the table 14 contacts the limit block 15. The limit block 15 is provided with four groups, which are evenly distributed in a ring shape on the outer periphery of the table 14. The outer periphery of the limit block 15 is slidably connected to the inside of the limit cylinder 11. When the outer side of the limit block 15 is set as an inclined surface and the inner side of the extrusion ring 8 is set as an inclined surface, the inner inclined surface of the extrusion ring 8 contacts the outer inclined surface of the limit block 15. When the extrusion ring 8 moves inward, the limit block 15 will move toward the inside of the limit cylinder 11.

[0034] Reference Figure 1 and Figure 4 The sliding assembly includes an adjustment seat 17 for conveniently adjusting the position of the noise reduction earmuff 2. The inner side of the adjustment seat 17 is fixedly connected to the left and right sides of the cap body 1. A T-slot 18 is opened inside the adjustment seat 17. A threaded column 19 is rotatably connected inside the adjustment seat 17. A knob 20 for convenient rotation is fixedly connected to the outer side of the threaded column 19. A T-block 16 is threadedly connected to the outer periphery of the threaded column 19. By rotating the threaded column 19, the threaded column 19 can drive the T-block 16 to move left and right along the outer wall of the threaded column 19. The outer periphery of the T-block 16 is slidably connected to the inside of the T-slot 18. The bottom end of the T-block 16 is fixedly connected to the top of the noise reduction earmuff 2. The movement of the T-block 16 can drive the noise reduction earmuff 2 to move.

[0035] Working principle: When you want to remove the inner ear sound insulation component conveniently, press button 7 inward, button 7 pushes inner ear sound insulation board 9 inward, inner ear sound insulation board 9 drives extrusion ring 8 to move inward and squeezes reset spring 5, extrusion ring 8 squeezes the inclined surface of limit block 15, so that limit block 15 retracts into the interior of limit cylinder 11, so that inner ear sound insulation board 9 can be conveniently taken out and replaced, ensuring the cleanliness of inner ear sound insulation component and protecting the health of miners. When you want to adjust the position of noise reduction earmuffs 2, turn knob 20, knob 20 drives threaded column 19 to rotate, threaded column 19 drives T-block 16 to slide inward along the inner wall of T-slot 18, T-block 16 drives noise reduction earmuffs 2 to move inward on the inner wall of cap body 1, so that noise reduction earmuffs 2 can adjust the position of noise reduction earmuffs 2 according to the face shape of the user, ensuring that noise reduction earmuffs 2 fit the side face of the user and ensuring noise reduction effect.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A mining helmet with noise reduction function, comprising a helmet body (1), characterized in that: The two sides of the cap body (1) are fixedly connected to noise reduction earmuffs (2) via sliding components, the inner side of the noise reduction earmuffs (2) is fixedly connected to a fitting cotton ring (3), the inner side of the noise reduction earmuffs (2) is provided with a sliding groove (4), the inner side of the sliding groove (4) is elastically connected to a connecting circular plate (6) via a return spring (5), the outer side of the connecting circular plate (6) is fixedly connected to a button (7), the inner side of the connecting circular plate (6) is fixedly connected to an extrusion ring (8), the inner side of the noise reduction earmuffs (2) is slidably connected to an inner ear sound insulation component, the outer side of the inner ear sound insulation component is fixedly connected to a limiting cylinder (11), the inner side of the limiting cylinder (11) is provided with a limiting groove (12), the inner side of the limiting groove (12) is elastically connected to a round table (14) via a limiting spring (13), and the outer peripheral surface of the round table (14) contacts a limiting block (15).

2. The mining helmet with noise reduction function according to claim 1, characterized in that: The sliding assembly comprises an adjustment seat (17), the inner side of the adjustment seat (17) is fixedly connected to the left and right sides of the cap body (1), a T-shaped slot (18) is provided inside the adjustment seat (17), a threaded column (19) is rotatably connected inside the adjustment seat (17), a knob (20) is fixedly connected to the outer side of the threaded column (19), a T-shaped block (16) is threadedly connected to the outer periphery of the threaded column (19), and the bottom end of the T-shaped block (16) is fixedly connected to the top end of the noise reduction earmuff (2).

3. The mining helmet with noise reduction function according to claim 1, characterized in that: One end of the return spring (5) is fixedly connected to the inner side of the sliding groove (4), and the other end of the return spring (5) is fixedly connected to the inner side of the connecting circular plate (6); the outer periphery of the connecting circular plate (6) is slidably connected to the inside of the sliding groove (4).

4. The mining helmet with noise reduction function according to claim 1, characterized in that: The inner ear sound insulation component comprises an inner ear sound insulation board (9), and a skin-friendly cotton pad (10) is fixedly connected to the inner side of the inner ear sound insulation board (9).

5. The mining helmet with noise reduction function according to claim 1, characterized in that: The outer periphery of the button (7) is slidably connected to the inside of the noise reduction earmuff (2), and the outer periphery of the limiting cylinder (11) is slidably connected to the inside of the noise reduction earmuff (2).

6. The mining helmet with noise reduction function according to claim 1, characterized in that: One end of the limit spring (13) is fixedly connected to the inner side of the limit groove (12), and the other end of the limit spring (13) is fixedly connected to the inner side of the truncated table (14); the outer periphery of the truncated table (14) is slidably connected to the inside of the limit groove (12).

7. The mining helmet with noise reduction function according to claim 1, characterized in that: The outer periphery of the limit block (15) is slidably connected to the inside of the limit cylinder (11); the outer side of the limit block (15) is arranged as an inclined surface; the inner side of the extrusion ring (8) is arranged as an inclined surface; the inner side inclined surface of the extrusion ring (8) contacts the outer side inclined surface of the limit block (15).

8. The mining helmet with noise reduction function according to claim 2, characterized in that: The outer periphery of the T-shaped block (16) is slidably connected inside the T-shaped groove (18).

Images