An adaptive noise-isolating earplug with dual-mode fluid regulation and ventilation functions

Abstract

This invention relates to an adaptive noise-isolating earplug, belonging to the technical field of personal hearing protection products. The earplug includes an ear canal sealing structure, a fluid transmission structure, a fluid control structure, and a removal structure. The ear canal sealing structure is located at the front end of the earplug and has an expandable fluid cavity inside. When fluid enters, the sealing structure expands and conforms to the inner wall of the ear canal to achieve a noise-isolating effect. Simultaneously, a ventilation channel is provided inside the ear canal sealing structure to maintain airflow within the ear canal. The fluid transmission structure connects the ear canal sealing structure and the fluid control structure, allowing fluid to flow inside the earplug. The fluid control structure uses a two-stage pressing mechanism to adjust the fluid volume, thus forming a first expansion state and a second expansion state. The first state is suitable for people with narrow ear canals, while the second state is suitable for adult ear canals. The removal structure is located at the rear end of the earplug for easy removal. This invention can adapt to people with different ear canal sizes and has good noise insulation and ventilation performance, making it suitable for prolonged wear.

Description

Technical Field

[0001] This invention relates to the field of personal hearing protection products, specifically to an adaptive noise-isolating earplug based on fluid regulation. Specifically, this invention utilizes a fluid regulation structure and a dual-stage pressure control structure to allow the earplug to switch between different expansion states, thereby adapting to the ear canal sizes of different individuals. Simultaneously, by incorporating a ventilation channel, it improves the airflow environment within the ear canal, enhancing the comfort and hygiene of the earplug during prolonged wear. Background Technology

[0002] With the increasing complexity of noise environments in industrial production, transportation, and daily life, the demand for personal hearing protection products is constantly increasing. As a common hearing protection device, earplugs are widely used in industrial operations, sleep aids, and noise isolation.

[0003] Existing earplugs mainly include foam earplugs, silicone earplugs, and pre-molded earplugs. Foam earplugs rely on the elasticity of the material to expand within the ear canal and form a seal, while silicone earplugs rely on their shape and size matching the ear canal to achieve sound insulation. However, due to significant differences in ear canal size and shape among different users, existing earplugs typically use fixed sizes or a single elastic expansion method, making it difficult to achieve a good fit for different people's ear canals. This can easily lead to problems such as discomfort, poor seal, or unstable sound insulation.

[0004] Furthermore, some earplugs cannot effectively adjust their expansion during wear, making it difficult for users to control the fit according to their needs. This can lead to either insufficient expansion resulting in reduced sound insulation or excessive expansion causing discomfort due to pressure in the ear canal. Additionally, existing earplugs generally lack effective air pressure regulation mechanisms, which may cause an imbalance of pressure inside and outside the ear canal during prolonged wear, further impacting the user experience.

[0005] Therefore, how to provide a soundproof earplug that can adaptively adjust according to different ear canal conditions while taking into account sealing performance, comfort and stability has become a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0006] To address the problems of poor earplug compatibility, poor ventilation, and non-adjustable sealing in existing technologies, this invention provides an adaptive noise-isolating earplug with dual-mode fluid regulation and ventilation functions.

[0007] The earplug of this invention features a fluid expansion structure, allowing the ear canal sealing portion to expand to varying degrees depending on the amount of fluid entering, thus adapting to different ear canal sizes. Simultaneously, by incorporating a ventilation channel within the earplug, a certain degree of airflow is maintained within the ear canal, preventing discomfort caused by prolonged sealing.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An adaptive noise-isolating earplug includes an ear canal sealing structure, a fluid transmission structure, a fluid control structure, and an extraction structure.

[0010] The ear canal sealing structure is located at the front end of the earplug and is used to insert into the ear canal to achieve sound insulation and sealing. The ear canal sealing structure has an expandable fluid cavity inside. When fluid enters the cavity, the cavity volume increases, thereby pushing the ear canal sealing structure to expand outward and make it fit against the ear canal wall to form a seal.

[0011] Preferably, the ear canal sealing structure is made of a flexible elastic material, such as medical silicone or flexible polymer material, to ensure good fit and comfort during expansion.

[0012] A ventilation channel is provided inside the ear canal sealing structure. The ventilation channel runs through the earplug structure, so that the inside of the ear canal is kept in a certain state of communication with the outside air, thereby improving the air environment inside the ear canal and reducing the occurrence of moisture.

[0013] The fluid transmission structure is located in the middle of the earplug, and a fluid channel is formed inside it to transport fluid from the fluid control structure to the ear canal sealing structure. Through this fluid transmission channel, the fluid can form a stable flow path inside the earplug, thereby realizing the inflation or liquid filling of the expansion cavity.

[0014] The fluid control structure is located at the tail of the earplug and is used to control the flow rate of fluid into the ear canal sealing structure. This fluid control structure includes a pressing mechanism and a locking mechanism.

[0015] The pressing mechanism is a two-stage pressing structure. When the user presses the pressing mechanism for the first time, the amount of fluid entering the fluid cavity is a first preset value, thereby putting the ear canal sealing structure in a first expansion state. This state is suitable for people with narrow ear canals, such as children or users with small ear canals.

[0016] When the user presses the mechanism a second time or presses it fully, more fluid enters the fluid cavity, causing the ear canal seal to be in a second expansion state, which is suitable for adults or users with larger ear canals.

[0017] The locking mechanism is used to fix the position of the pressing mechanism after pressing, so that the earplug remains in the corresponding expanded state and will not automatically rebound due to changes in internal pressure, thereby ensuring the stability of the earplug during use.

[0018] The removal mechanism is located at the tail end of the earplug, allowing the user to easily remove the earplug from the ear canal after use. Preferably, the removal mechanism can be a pull ring, a pull handle, or a flexible pull tab.

[0019] Through the above structural design, the earplug of the present invention has the following advantages:

[0020] First, by setting up a fluid expansion structure, the present invention enables the earplug to expand in different states according to the amount of fluid entering, thereby adapting to people with different ear canal sizes.

[0021] Secondly, by setting up a ventilation channel, the present invention allows air to circulate inside the ear canal, thereby reducing moisture and improving wearing comfort.

[0022] Third, by setting a two-stage pressing control structure, the present invention enables the earplug to have two different sealing states, which users can choose according to their own needs.

[0023] Fourth, by setting a locking mechanism, the present invention enables the earbud to remain stable in different states and prevents it from automatically rebounding.

[0024] Fifth, by designing a removal structure, this invention allows the earplugs to be easily removed after use, thus improving safety. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the earplug of the present invention.

[0026] Figure 2 This is a schematic diagram of the ear canal sealing structure of the present invention.

[0027] Figure 3 This is a schematic diagram of the fluid transport structure of the present invention.

[0028] Figure 4 This is a schematic diagram of the first pressing state of the present invention.

[0029] Figure 5 This is a schematic diagram of the second pressing state of the present invention.

[0030] In the diagram, 1 represents the ear canal sealing structure, 2 the ventilation channel, 3 the fluid channel, 4 the fluid control structure, 5 the pressing mechanism, and 6 the removal structure. Detailed Implementation

[0031] The invention will now be described in further detail with reference to the accompanying drawings. Figure 1As shown, the present invention provides an adaptive noise-isolating earplug, including an ear canal sealing structure 1, a ventilation channel 2, a fluid channel 3, a fluid control structure 4, a pressing mechanism 5, and an extraction structure 6.

[0032] like Figure 2 As shown, the ear canal sealing structure 1 is located at the front end of the earplug and is made of a flexible elastic material with an expandable fluid cavity inside. Under external fluid pressure, the ear canal sealing structure 1 can expand radially, thereby conforming to the inner wall of different users' ear canals and achieving a good sealing effect. The ventilation channel 2 is disposed through the ear canal sealing structure 1 to balance the air pressure inside and outside the ear canal and avoid discomfort caused by pressure differences.

[0033] like Figure 3 As shown, the fluid channel 3 is disposed inside the earplug and is used to connect the ear canal sealing structure 1 and the fluid control structure 4. The fluid channel 3 is a sealed structure that can be used to transport gas or liquid, thereby realizing the filling or releasing of the fluid cavity inside the ear canal sealing structure 1.

[0034] like Figure 4 and Figure 5 As shown, the pressing mechanism 5 is a two-stage pressing structure, which can output different amounts of fluid through different pressing strokes.

[0035] During use, when the pressing mechanism 5 is in the first pressing state (e.g.) Figure 4 When the fluid enters the fluid cavity of the ear canal sealing structure 1 through the fluid channel 3 (as shown), it expands to the first expansion state, which is suitable for people with narrow ear canals and can reduce pressure while ensuring a seal.

[0036] When the pressing mechanism 5 is pressed further to the second pressing state (such as...) Figure 5 When the fluid input increases (as shown), the ear canal sealing structure 1 reaches the second expansion state, thereby adapting to adult ear canals or usage scenarios with higher sealing requirements and improving the sound insulation effect.

[0037] The fluid control structure 4 has a locking structure inside, which is used to limit the pressing mechanism 5 under different pressing states, thereby maintaining the corresponding expansion state and preventing fluid backflow from causing a decrease in the sealing effect.

[0038] In addition, such as Figure 1 As shown, the removal structure 6 is located at the tail end of the earplug and can be a pull handle or a flexible pull strap structure, which makes it easy for the user to remove the earplug from the ear canal after use, improving the convenience and safety of use.

[0039] In summary, this invention, through the inclusion of a fluid control structure 4 and a two-stage pressing mechanism 5, achieves controllable expansion of the ear canal sealing structure 1, thereby adapting to ear canals of different sizes and balancing sound insulation performance with wearing comfort. Simultaneously, the inclusion of a ventilation channel 2 effectively improves the air pressure balance between the inside and outside of the ear canal, enhancing the user experience.

Claims

1. An adaptive noise-isolating earplug, characterized in that, include: Ear canal sealing structure, fluid transmission structure, fluid control structure, and removal structure; The ear canal sealing structure is located at the front end of the earplug, and its interior has an expandable fluid cavity and a ventilation channel that communicates with the outside. The fluid transmission structure connects the fluid control structure and the fluid cavity; The fluid control structure is used to deliver fluid to the fluid cavity and regulate the fluid pressure; The fluid control structure includes a two-stage pressing mechanism for controlling the amount of fluid entering the fluid cavity, thereby causing the ear canal sealing structure to expand in different volumes. The removal structure is located at the tail end of the earplug.

2. The earplug according to claim 1, characterized in that: The two-stage pressing mechanism includes a first pressing stroke and a second pressing stroke, which correspond to different fluid output volumes.

3. The earplug according to claim 2, characterized in that: The first pressing stroke corresponds to the first expansion state, which is used to adapt to people with narrow ear canals; The second pressing stroke corresponds to the second expansion state, which is used to fit the adult ear canal.

4. The earplug according to claim 1, characterized in that: The ear canal sealing structure is made of a flexible elastic material that can expand radially under fluid pressure and conform to the inner wall of the ear canal.

5. The earplug according to claim 1, characterized in that: The ventilation channel extends through the ear canal sealing structure and is used to balance the air pressure inside and outside the ear canal.

6. The earplug according to claim 1, characterized in that: The fluid transport structure has a sealed fluid channel inside, which is used to transport gas or liquid.

7. The earplug according to claim 1, characterized in that: The fluid control structure includes a pressing element and a locking mechanism.

8. The earplug according to claim 7, characterized in that: The locking mechanism is used to limit the pressing member at different pressing positions to maintain the corresponding expansion state.

9. The earplug according to claim 1, characterized in that: The fluid cavity is a ring-shaped or multi-cavity structure to achieve uniform expansion.

10. The earplug according to claim 1, characterized in that: The removal mechanism is a pull handle or flexible pull strap located at the end of the earplug.

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