Protective noise reduction earplug for high-decibel noise environment
By combining an adaptive ear canal fit mechanism with a miniature noise reduction circuit, the problems of poor sealing and comfort in existing earplugs are solved, providing efficient noise reduction and hearing protection.
Patent Information
- Application Number
- CN202520273487.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-20
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2035-02-20
AI Technical Summary
Existing protective noise-canceling earplugs cannot adapt to different ear canal shapes, resulting in poor sealing, ineffective noise cancellation, and discomfort during prolonged wear.
It adopts an adaptive ear canal fit mechanism, including a high-toughness outer layer and a porous plastic inner layer. Through the cooperation of air bladder and fan-shaped blade, it ensures that the earplug fits tightly to the shape of the ear canal, and combines with micro noise reduction circuitry to achieve passive and active noise reduction.
It achieves efficient noise isolation and comfortable long-term wear, reducing the risk of hearing damage from high-decibel noise.
Smart Images
Figure CN223654046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of noise-canceling earplug technology, and in particular to a protective noise-canceling earplug for high-decibel noise environments. Background Technology
[0002] In modern society, high-decibel noise environments are increasingly common. Whether in industrial production workshops, construction sites, transportation hubs, or music performance venues, people are frequently exposed to noise that can damage their hearing. As an important hearing protection tool, the performance and wearing experience of protective noise-canceling earplugs are crucial. However, existing protective noise-canceling earplugs have significant design and functional deficiencies, failing to meet people's needs in practical use.
[0003] Current noise-canceling earplugs typically use a standardized design and cannot adaptively adjust to the shape of a user's ear canal. Since ear canal shape and size vary from person to person, standardized earplugs can easily slip out of the ear canal, resulting in a poor seal, affecting noise cancellation performance, and possibly even completely losing their protective function.
[0004] Secondly, while existing earbuds can reduce noise to some extent, they are often not comfortable enough, causing discomfort after prolonged wear, and their noise reduction effect is not good for certain frequencies.
[0005] Therefore, it is necessary to provide a protective noise-canceling earplug for high-decibel noise environments to solve the problems mentioned in the background art. Utility Model Content
[0006] To address the aforementioned issues, this application provides a protective noise-canceling earplug for high-decibel noise environments. During wear, the ear canal compresses the fan-shaped blade, causing the corner plate to move along the shaft. The air bladder lifts the porous plastic inner layer and the high-toughness outer layer of the smooth portion to conformally fix the noise-canceling earplug to the ear canal, ensuring that the earplug can closely fit the shape of each user's ear canal, maximizing the blocking of external noise and providing a highly efficient noise reduction effect.
[0007] To achieve the objectives of this application, the following technical solution is provided:
[0008] This application provides a protective noise-canceling earplug for high-decibel noise environments, comprising: a support member and a noise-canceling earplug, wherein the support member can be positioned outside the user's ear canal, and the noise-canceling earplug is fixedly disposed on the support member, and the noise-canceling earplug can be installed inside the user's ear canal; specifically, the noise-canceling earplug includes a high-toughness outer layer fixedly disposed with the support member, the high-toughness outer layer is filled with a porous plastic inner layer, both the high-toughness outer layer and the porous plastic inner layer are composed of an arc-shaped portion and a smooth portion, and a hollow cavity is formed between the porous plastic inner layer and the support member, and an adaptive ear canal fitting mechanism that conforms to the shape of the ear canal is installed in the hollow cavity.
[0009] In one possible implementation, the adaptive ear canal fitting mechanism includes a fixed base fixedly disposed with the support member. A plurality of evenly distributed shafts are fixedly disposed at the end of the fixed base away from the support member. The ends of the shafts away from the support member are all fixedly disposed with a limiting seat, and the ends of the shafts near the support member are all fixedly disposed with a positioning plate. A plurality of evenly distributed hinge shafts are hinged to the circumferential direction of the positioning plate. An angle plate is movably disposed on the shaft located between the positioning plate and the limiting seat. A plurality of evenly distributed rotating rods corresponding to the hinge shafts are hinged to the circumferential direction of the angle plate. The hinge shafts are hinged to the corresponding rotating rods, and each rotating rod has a fan-shaped blade on the side away from the angle plate.
[0010] In one possible implementation, a connecting rod is fixedly provided at the center of the end of the corner plate away from the fixed base, and a through hole is provided through the center of the limiting seat. The connecting rod is movably disposed in the through hole, and a spring is sleeved on the outer circumferential side of the connecting rod located between the corner plate and the limiting seat. An airbag is fixedly provided at the end of the connecting rod away from the limiting seat.
[0011] In one possible implementation, the circumferential outer side of the fan-shaped blade is tangent to the porous plastic inner layer of the arc-shaped portion located within the hollow cavity, and the circumferential outer side of the airbag may be tangent to the porous plastic inner layer of the smooth portion located within the hollow cavity.
[0012] In one possible implementation, the high-toughness outer layer is made of silicone material.
[0013] In one possible implementation, the porous plastic inner layer is made of polyurethane foam.
[0014] In one possible implementation, the outer layer of the high-toughness outer layer is coated with a nano-coating.
[0015] In one possible implementation, the support has a built-in miniature noise reduction circuit and a magnetic charging interface.
[0016] The beneficial effects of this utility model are:
[0017] 1. During the wearing process, the ear canal compresses the fan-shaped blade, causing the corner plate to move along the shaft. The airbag lifts the porous plastic inner layer and the high-toughness outer layer of the smooth part to fix the noise-canceling earplug to the ear canal in a conformal manner, ensuring that the earplug can fit closely to the shape of each user's ear canal, blocking external noise to the maximum extent and providing a highly efficient noise reduction effect.
[0018] 2. The earplug in this utility model adopts an ergonomic design, which can adapt to the ear canal shape of different users and ensure comfort during long-term wear; at the same time, the outer surface of the earplug is made of high-toughness material and the inner surface is filled with high-efficiency sound-absorbing material, which can achieve a good noise reduction effect.
[0019] 3. The earplug in this utility model utilizes both passive and active noise reduction technologies. By physically blocking and absorbing sound waves, it reduces noise from entering the ear canal and provides reliable hearing protection, thereby reducing the risk of hearing damage caused by long-term exposure to high-decibel noise environments. Attached Figure Description
[0020] The accompanying drawings are provided to further understand this application and form part of the specification. They are used together with the embodiments of this application to explain this application and do not constitute a limitation thereof.
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the noise-canceling earplug in this utility model;
[0023] Figure 3 This is a schematic diagram of the adaptive ear canal fitting mechanism in this utility model;
[0024] Reference numerals: 1. Support component; 2. Noise-canceling earplug; 21. High-toughness outer layer; 22. Porous plastic inner layer; 23. Hollow cavity; 24. Adaptive ear canal fitting mechanism; 240. Fixed base; 241. Shaft; 242. Limiting seat; 243. Positioning plate; 244. Angle plate; 245. Rotating rod; 246. Hinge shaft; 247. Fan-shaped blade; 248. Connecting rod; 249. Spring; 250. Airbag. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.
[0026] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this application, unless otherwise stated, "multiple" means three or more.
[0027] Figures 1-3 A noise-canceling earplug for high-decibel noise environments provided in this application includes: a support member 1 and a noise-canceling earplug 2. The support member 1 can be positioned outside the user's ear canal, and the noise-canceling earplug 2 is fixedly disposed on the support member 1. The noise-canceling earplug 2 can be installed inside the user's ear canal. Specifically, the noise-canceling earplug 2 includes a high-toughness outer layer 21 fixedly disposed with the support member 1. The high-toughness outer layer 21 is filled with a porous plastic inner layer 22. Both the high-toughness outer layer 21 and the porous plastic inner layer 22 are composed of an arc-shaped portion and a smooth portion. A hollow cavity 23 is formed between the porous plastic inner layer 22 and the support member 1. An adaptive ear canal fitting mechanism 24 that conforms to the shape of the ear canal is installed in the hollow cavity 23.
[0028] Through the above technical solution, the porous plastic inner layer 22 and the high-toughness outer layer 21 of the noise-canceling earplug 2 adopt an ergonomic design, which can adapt to the ear canal shape of different users and ensure the comfort of wearing for a long time. When the user wears the noise-canceling earplug 2, first align the noise-canceling earplug 2 with the ear canal, and insert the noise-canceling earplug 2 into the ear canal. The ear canal pressure adaptive ear canal fitting mechanism 24 lifts up the porous plastic inner layer 22 and the high-toughness outer layer 21 of the smooth part to fix the noise-canceling earplug 2 to the ear canal in a conformal manner, thereby ensuring that the earplug can fit tightly to the ear canal shape of each user, blocking external noise to the maximum extent and providing a highly efficient noise reduction effect.
[0029] In one possible implementation, the adaptive ear canal fitting mechanism 24 includes a fixed base 240 fixedly disposed with the support member 1. A plurality of evenly distributed shafts 241 are fixedly disposed at one end of the fixed base 240 away from the support member 1. The ends of the shafts 241 away from the support member 1 are all fixedly disposed with a limiting seat 242, and the ends of the shafts 241 near the support member 1 are all fixedly disposed with a positioning plate 243. A plurality of evenly distributed hinge shafts 246 are hinged to the circumference of the positioning plate 243. An angle plate 244 is movably disposed on the shafts 241 located between the positioning plate 243 and the limiting seat 242. A plurality of evenly distributed rotating rods 245, corresponding to the hinge shafts 246, are hinged to the circumference of the angle plate 244. The hinge shafts 246 are hinged to the corresponding rotating rods 245, and a fan-shaped blade 247 is disposed on the side of each rotating rod 245 away from the angle plate 244.
[0030] In one possible implementation, a connecting rod 248 is fixedly provided at the center of the end of the corner plate 244 away from the fixed base 240, and a through hole is provided at the center of the limiting seat 242. The connecting rod 248 is movably disposed in the through hole, and a spring 249 is sleeved on the outer circumference of the connecting rod 248 located between the corner plate 244 and the limiting seat 242. An airbag 250 is fixedly provided at the end of the connecting rod 248 away from the limiting seat 242.
[0031] Based on the above technical solution, during the user's wearing of the noise-canceling earplug 2, after the ear canal compresses the fan-shaped blade 247, the hinge 246 rotates counterclockwise and the rotating rod 245 rotates clockwise, causing the corner plate 244 to move along the shaft 241 to the end away from the fixed base 240. The spring 249 is compressed, and the airbag 250 also moves to the end away from the fixed base 240. Simultaneously, the airbag 250 lifts the porous plastic inner layer 22 and the high-toughness outer layer 21 of the smooth part to fix the noise-canceling earplug 2 to the ear canal in a conformal manner. When the user removes the noise-canceling earplug 2 from the ear canal, the spring 249 returns to its original shape, the airbag 250 and the corner plate 244 move to the end closer to the fixed base 240, the hinge 246 rotates clockwise, the rotating rod 245 rotates counterclockwise, and the fan-shaped blade 247 returns to its initial position.
[0032] In one possible implementation, the outer circumferential side of the fan-shaped blade 247 is tangent to the porous plastic inner layer 22 of the arc-shaped portion located within the hollow cavity 23, ensuring that during the wearing of the noise-canceling earplug 2, the ear canal can compress the fan-shaped blade 247 and cause the fan-shaped blade 247 to rotate. The outer circumferential side of the airbag 250 can be tangent to the porous plastic inner layer 22 of the smooth portion located within the hollow cavity 23, so that when the airbag 250 moves away from the fixed base 240, it can lift up the porous plastic inner layer 22 of the smooth portion and the high-toughness outer layer 21 to fix the noise-canceling earplug 2 to the ear canal in a conformal manner.
[0033] In one possible implementation, the high-toughness outer layer 21 is made of silicone material, which has good elasticity and durability.
[0034] In one possible implementation, the porous plastic inner layer 22 is made of polyurethane foam, which has a porous structure that can effectively absorb noise and achieve a good noise reduction effect.
[0035] In one possible implementation, the outer layer of the high-toughness outer layer 21 is coated with a nano-coating to improve its dustproof and waterproof properties.
[0036] In one possible implementation, the support member 1 has a built-in micro noise reduction circuit and a magnetic charging interface, which allows the user to charge the device while wearing it.
[0037] It should be added that the miniature noise reduction circuit can eliminate noise entering the ear canal through active noise cancellation (ANC) technology. By adopting the above technical solution, the noise-canceling earplug 2 can simultaneously utilize passive and active noise cancellation technologies. Through the physical barrier of the porous plastic inner layer 22 and the high-toughness outer layer 21 and the absorption of sound waves by the miniature noise reduction circuit, it reduces the noise entering the ear canal and provides reliable hearing protection, reducing the risk of hearing damage caused by long-term exposure to high-decibel noise environments.
[0038] Working principle:
[0039] During the wearing of the noise-canceling earplug 2, the user first aligns the noise-canceling earplug 2 with the ear canal and inserts it into the ear canal. The ear canal compresses the fan-shaped blade 247, the hinge 246 rotates counterclockwise, and the rotating rod 245 rotates clockwise, causing the corner plate 244 to move along the shaft 241 to the end away from the fixed base 240. The spring 249 is compressed, and the airbag 250 also moves to the end away from the fixed base 240. Simultaneously, the airbag 250 lifts the porous plastic inner layer 22 and the high-toughness outer layer 21 of the smooth part to fix the noise-canceling earplug 2 to the ear canal in a conformal manner.
[0040] During the noise reduction process of the noise-canceling earplug 2, the noise-canceling earplug 2 reduces noise through the physical barrier of the porous plastic inner layer 22 and the high toughness outer layer 21, as well as the absorption of sound waves by the built-in micro noise reduction circuit.
[0041] When the user removes the noise-canceling earplug 2 from the ear canal, the spring 249 returns to its original shape, the airbag 250 and the corner plate 244 move towards the end closer to the fixed base 240, the hinge 246 rotates clockwise, the rotating rod 245 rotates counterclockwise, and the fan-shaped blade 247 returns to its initial position.
[0042] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. This application is not limited to the exact structures described above and illustrated in the accompanying drawings, and it should not be considered that the specific implementation of this application is limited to these descriptions. For those skilled in the art, various changes and modifications made without departing from the concept of this application should be considered to fall within the protection scope of this application.
Claims
1. A protective noise-canceling earplug for use in high-decibel noise environments, comprising: The support member (1) and the noise-canceling earplug (2) are characterized in that the support member (1) can be positioned outside the user's ear canal, and the noise-canceling earplug (2) is fixedly disposed on the support member (1). The noise-canceling earplug (2) can be installed inside the user's ear canal. Specifically, the noise-canceling earplug (2) includes a high-toughness outer layer (21) fixedly disposed with the support member (1). The high-toughness outer layer (21) is filled with a porous plastic inner layer (22). Both the high-toughness outer layer (21) and the porous plastic inner layer (22) are composed of an arc-shaped part and a smooth part. A hollow cavity (23) is formed between the porous plastic inner layer (22) and the support member (1). An adaptive ear canal fitting mechanism (24) that conforms to the ear canal is installed in the hollow cavity (23).
2. The protective noise-canceling earplug for high-decibel noise environments according to claim 1, characterized in that, The adaptive ear canal fitting mechanism (24) includes a fixed base (240) fixedly disposed with the support member (1). Multiple evenly distributed shafts (241) are fixedly disposed at the end of the fixed base (240) away from the support member (1). The ends of the shafts (241) away from the support member (1) are all fixedly disposed with a limiting seat (242), and the ends of the shafts (241) near the support member (1) are all fixedly disposed with a positioning plate (243). The positioning plate (243) is hinged in the circumferential direction. There are multiple evenly distributed hinge shafts (246). An angle plate (244) is movably provided on the shaft (241) located between the positioning plate (243) and the limiting seat (242). Multiple rotating rods (245) corresponding to the hinge shafts (246) and evenly distributed are hinged to the circumferential direction of the angle plate (244). The hinge shafts (246) are hinged to the corresponding rotating rods (245), and each rotating rod (245) is provided with a fan-shaped blade (247) on the side away from the angle plate (244).
3. The protective noise-canceling earplug for high-decibel noise environments according to claim 2, characterized in that, A connecting rod (248) is fixedly provided at the center of the end of the corner plate (244) away from the fixed base (240), and a through hole is provided through the center of the limiting seat (242). The connecting rod (248) is movably provided in the through hole, and a spring (249) is sleeved on the outer circumferential side of the connecting rod (248) located between the corner plate (244) and the limiting seat (242). An airbag (250) is fixedly provided at the end of the connecting rod (248) away from the limiting seat (242).
4. The protective noise-canceling earplug for high-decibel noise environments according to claim 3, characterized in that, The outer circumferential direction of the fan-shaped blade (247) is tangent to the porous plastic inner layer (22) of the arc-shaped portion located in the hollow cavity (23), and the outer circumferential direction of the airbag (250) is tangent to the porous plastic inner layer (22) of the smooth portion located in the hollow cavity (23).
5. A protective noise-canceling earplug for high-decibel noise environments according to claim 1, characterized in that, The high-toughness outer layer (21) is made of silicone material.
6. The protective noise-canceling earplug for high-decibel noise environments according to claim 1, characterized in that, The porous plastic inner layer (22) is made of polyurethane foam.
7. The protective noise-canceling earplug for high-decibel noise environments according to claim 1, characterized in that, The outer layer of the high-toughness outer layer (21) is coated with a nano-coating.
8. The protective noise-canceling earplug for high-decibel noise environments according to claim 1, characterized in that, The support member (1) has a built-in micro noise reduction circuit and a magnetic charging interface is provided on the support member (1).