Air bag type comfortable-to-wear sound insulation and noise reduction earplug

Abstract

The utility model discloses an air bag type sound insulation and noise reduction earplug comfortable to wear. The air bag type sound insulation and noise reduction earplug comprises a supporting part and an air bag part. A through ventilation channel is formed in the middle of the supporting part; the air bag part is arranged on the outer side of the supporting part; the whole air bag part is in a circular truncated cone shape, namely, an inner cavity of the air bag part is gradually expanded and enlarged outwards from one end to the other end. The earplug can be adaptively adjusted according to the sizes of the ear canals of different people, better fits the ear canals, solves the problems that the traditional silica gel earplug and sponge earplug are easy to leak sound and expand ears, and in addition, the metal filter can adjust the size of the micropore to be 1-40 microns according to different scene requirements, so that the earplug is convenient to use. The problem that a general cotton filter in the market cannot be washed with water is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of noise reduction, and in particular relates to an airbag-type comfortable-to-wear sound-insulating and noise-reducing earplug. Background Art

[0002] Noise-isolating earplugs (also known as soundproofing earplugs, silent earplugs, and sleeping earplugs) are typically made of silicone, low-pressure foam, or highly elastic polyester. Once inserted, they create a tight, compressed contact with the outer ear canal, preventing sound from entering the middle and inner ear (eardrum), providing a quiet environment for rest or work.

[0003] Existing foam earplugs cannot be reused and are prone to bacterial growth. While silicone earplugs can be washed and reused, their structural support is relatively high, and excessive compression of the ear canal can cause ear pain and discomfort. Prolonged use can lead to dizziness, headaches, and other adverse symptoms. Furthermore, silicone earplugs are not adaptively sized, making it impossible to fit most consumers in the same size. They often require pre-installed ear caps in large, medium, and small sizes for consumers to customize. Unsuitable ear caps are discarded, causing both inconvenience and a waste of resources. Utility Model Content

[0004] The utility model provides an airbag-type sound-isolating and noise-reducing earplug that is comfortable to wear in order to solve the above technical problems.

[0005] The solutions adopted by the present invention to achieve its technical effects are:

[0006] An airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug comprises a supporting portion and an airbag portion; the airbag portion is arranged on the outside of the supporting portion; the airbag portion is in the shape of a truncated cone as a whole, that is, the internal cavity of the airbag portion gradually expands outward from one end to the other.

[0007] Preferably, the thickness of the cavity wall of the airbag portion located outside the small cavity is smaller than the thickness of the cavity wall of the airbag portion located outside the large cavity.

[0008] Preferably, a through ventilation channel is provided in the support portion.

[0009] Preferably, an airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug further includes a metal filter; the metal filter is arranged in the air permeable channel.

[0010] Preferably, a hand rod is provided at one end of the support portion; and a rope threading hole is provided at the end of the hand rod.

[0011] Preferably, an avoidance groove is left between the outer side of the support portion and the expansion portion of the airbag portion.

[0012] Preferably, sealing rings are provided at both ends of the airbag portion, sealing grooves are provided on the outer sides of both ends of the support portion, and the two sealing rings are interference fit in the two sealing grooves respectively.

[0013] Preferably, a first sealing ring is provided at one end of the airbag portion; the other end of the airbag portion is integrally connected to one end of a support sleeve; a first sealing groove is provided on the outer side of the other end of the support sleeve; the first sealing ring can be flipped over and interference fit in the first sealing groove; second sealing rings are provided on the inner sides of both ends of the support sleeve; sealing grooves are provided on the outer sides of both ends of the support portion, and two second sealing rings can be interference fit in the two sealing grooves respectively.

[0014] Preferably, a second sealing groove is provided on the outer side of the support part; a second sealing ring is provided at one end of the airbag part, and the second sealing ring is interference fit in the second sealing groove, so that the airbag part is sleeved on the outer side of the support part; the other end of the airbag part is closed; the closed end of the airbag part is sealed at one end of the support part, thereby closing one end of the air permeable channel.

[0015] The beneficial effects of the present invention are as follows: utilizing the soft and easily deformable characteristics of the airbag, and the small inlet end of the airbag is easy to insert into the ear, the ear canal is first contacted and squeezed with the expanded end of the airbag, and then the inlet end is squeezed until it is gradually level with the expanded end, the airbag and the ear canal can fit tightly to form good airtightness, the force on the fitting surface of the airbag is evenly applied, and there will be no sound leakage through wrinkles and gaps, thus solving the pain point of traditional earplugs that are prone to sound leakage, and can also solve the pain point of conventional earplugs on the market that cause ear swelling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a top view of the noise reduction earplug disclosed in an embodiment of the present utility model;

[0017] Figure 2 This is a side cross-sectional schematic diagram of the noise reduction earplug disclosed in an embodiment of the present utility model;

[0018] Figure 3 A schematic diagram of a support portion disclosed in an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the ear capsule portion in the un-inverted state disclosed in the second embodiment of the present invention;

[0020] Figure 5 This is a schematic diagram of the ear capsule in the flipped state according to the second embodiment of the present invention.

[0021] Figure 6 This is a side cross-sectional schematic diagram of the noise reduction earplug disclosed in the third embodiment of the present utility model.

[0022] Label description: 1-support part, 2-airbag part, 3-metal filter, 4-hand pull rod, 5-rope hole, 6-avoidance groove, 7-sealing ring, 8-sealing groove, 9-first sealing ring, 10-support sleeve, 11-first sealing groove, 12-second sealing ring, 13-second sealing groove, 14-second sealing ring. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or there may be a central element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be a central element at the same time. When an element is referred to as being "fixedly connected to" another element, it can be a common fixed connection method such as welding, bolting or gluing.

[0024] Please refer to Figure 1-3 In a preferred embodiment of the utility model, an airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug is disclosed, comprising a supporting portion 1 and an airbag portion 2; the airbag portion 2 is arranged on the outside of the supporting portion 1; the airbag portion 2 is in the shape of a truncated cone as a whole, that is, the internal cavity of the airbag portion 2 gradually expands outward from one end to the other end.

[0025] Specifically, the thickness of the wall portion A of the airbag portion 2, located outside the small cavity, is thinner than the thickness of the wall portion B of the airbag portion 2, located outside the large cavity. When the ear canal presses against portion B, air pressure flows to portion A, more easily propping it up and transforming the original frustum into a straight cylinder, thereby increasing the contact area between the airbag portion 2 and the ear canal.

[0026] Specifically, a through ventilation channel is provided in the supporting portion to keep the outside of the ear canal unobstructed and allow air to be exhausted.

[0027] Specifically, an airbag-type, comfortable-to-wear, sound-isolating, and noise-reducing earplug also includes a metal filter 3; the metal filter 3 is disposed within the ventilation channel. The metal filter 3 has a microporous sponge structure, which can effectively reduce noise while keeping the outside of the ear canal clear and vented, reducing tinnitus, dizziness, and other discomforts caused by prolonged ear canal stuffiness. Compared to existing common sponge filters, the metal filter 3 has more conveniently adjustable filter pore size, and the pore diameter can be customized from 1 micron to 40 microns. It can effectively reduce noise within the frequency range of 20 Hz to 8000 Hz, while also solving the problem that cotton filters cannot be washed.

[0028] Specifically, a hand-pull rod 4 is provided at one end of the support portion 1 to facilitate holding and pushing the entire earplug; a rope hole 5 is provided at the end of the hand-pull rod 4 to be threaded and tied.

[0029] Specifically, an escape groove 6 is provided between the outer side of the support portion 1 and the expanded portion of the airbag portion 2. When the ear canal is small, area B can be squeezed toward the escape groove 6, further thinning the sides of the cylindrical body of the airbag portion 2 after deformation, thereby reducing discomfort caused by excessive squeezing of the ear canal by the airbag portion 2.

[0030] Specifically, sealing rings 7 are provided at both ends of the airbag portion 2 , and sealing grooves 8 are provided on the outer sides of both ends of the support portion. The two sealing rings 7 are interference fit in the two sealing grooves 8 , respectively.

[0031] refer to Figure 3-5 In the second preferred embodiment of the present invention, an airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug is disclosed. Except for the airbag portion 2, all other structures are consistent with the first preferred embodiment: a first sealing ring 9 is provided at one end of the airbag portion 2; the other end of the airbag portion 2 is integrally connected to one end of a support sleeve 10; a first sealing groove 11 is provided on the outside of the other end of the support sleeve 10; the first sealing ring 9 can be flipped over and interference fit in the first sealing groove 11; a second sealing ring 12 is provided on the inner side of both ends of the support sleeve 10; a sealing groove 8 is provided on the outer side of both ends of the support portion 1, and the two second sealing rings 12 can be interference fit in the two sealing grooves 8 respectively. In this solution, the airbag is added with a support sleeve 10, which is sleeved on the outside of the support portion 1. Compared with the previous solution in which the soft airbag portion 2 is directly sleeved on the outside of the support portion 1, the installation process of this solution is more convenient and stable. The process of flipping the first sealing ring 9 and inserting it in the first sealing groove 10 is also relatively simple.

[0032] Please refer to Figure 6 In the third preferred embodiment of the present invention, a comfortable-to-wear, sound-isolating, noise-reducing airbag-type earplug is disclosed. Aside from the airbag portion, the remaining structure is identical to that of the first preferred embodiment: a second sealing groove 13 is provided on the outer side of the support portion 1; a second sealing ring 14 is provided at one end of the airbag portion 2, which is interference-fitted within the second sealing groove 13, allowing the airbag portion 2 to fit over the outer side of the support portion 1; the other end of the airbag portion 2 is sealed; the closed end of the airbag portion 2 seals against one end of the support portion 1, sealing one end of the ventilation channel. This embodiment is suitable for environments where external impurities are prioritized for isolation.

[0033] As can be seen from the above description, the present invention can be effectively adjusted to fit the ear canal according to the size of the ear canal, thereby solving the pain points of traditional earplugs being prone to sound leakage and conventional earplugs on the market being swollen in the ear.

[0034] The above is a detailed description of the preferred embodiments of the present invention in conjunction with the drawings in the specification. It should be noted that the protection scope of the present invention includes but is not limited to the above embodiments; the specific structures disclosed in the drawings in the specification are only preferred embodiments of the present invention, and technicians in the field can also develop other embodiments on this basis. Any simple deformation or equivalent replacement that does not deviate from the innovative concept of the present invention is covered by the present invention and belongs to the protection scope of the present invention.

Claims

1. An airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug, characterized in that: include: Support part; The airbag portion is arranged on the outside of the support portion; the airbag portion is in the shape of a truncated cone as a whole, that is, the internal cavity of the airbag portion gradually expands outward from one end to the other end.

2. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 1, characterized in that: The thickness of the cavity wall of the airbag portion located outside the small cavity is smaller than the thickness of the cavity wall of the airbag portion located outside the large cavity.

3. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 1, characterized in that: A through ventilation channel is provided in the supporting portion.

4. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 3, characterized in that: It also includes a metal filter; the metal filter is arranged in the air permeable channel.

5. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 1, characterized in that: One end of the support portion is provided with a hand pull rod; the end of the hand pull rod is provided with a rope threading hole.

6. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 1, characterized in that: An escape groove is left between the outer side of the support portion and the expansion portion of the airbag portion.

7. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 1, characterized in that: Both ends of the airbag portion are provided with sealing rings, and both ends of the support portion are provided with sealing grooves on the outside, and the two sealing rings are respectively interference-locked in the two sealing grooves.

8. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 1, characterized in that: A first sealing ring is provided at one end of the airbag part; the other end of the airbag part is integrally connected to one end of a support sleeve; a first sealing groove is provided on the outer side of the other end of the support sleeve; the first sealing ring can be turned over and interference fit in the first sealing groove; second sealing rings are provided on the inner sides of both ends of the support sleeve; sealing grooves are provided on the outer sides of both ends of the support part, and two second sealing rings can be interference fit in the two sealing grooves respectively.

9. The airbag-type comfortable-to-wear sound-isolating and noise-reducing earplug according to claim 3, characterized in that: A second sealing groove is provided on the outer side of the support part; a second sealing ring is provided at one end of the airbag part, and the second sealing ring is interference fit in the second sealing groove, so that the airbag part is sleeved on the outer side of the support part; the other end of the airbag part is closed; the closed end of the airbag part is sealed at one end of the support part, closing one end of the air permeable channel.

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