Anti-tinnitus earplug capable of controlling noise reduction degree and achieving timed automatic discharging and using method of anti-tinnitus earplug
By adjusting the noise reduction components and the timed air release components, the problem of fixed noise reduction level of the tinnitus-proof earplugs has been solved, realizing adjustable noise reduction intensity and timed air pressure release, thus improving the user experience and safety of the earplugs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANDONG UNIV
- Filing Date
- 2026-04-08
- Publication Date
- 2026-05-12
AI Technical Summary
Existing tinnitus earplugs have a fixed noise reduction level, making it difficult to adjust precisely according to individual needs. Prolonged wear can lead to ear canal discomfort or damage.
By employing adjustable noise reduction components and timed discharge components, and through the design of an outer airbag, a noise reduction adjustment cavity, elastic support microspheres, and a timed venting channel, the noise reduction intensity can be adjusted and the air pressure can be released at a time.
It achieves continuous adjustment of noise reduction intensity, avoids tinnitus caused by long-term pressure on the ear canal, and improves wearing comfort and safety.
Smart Images

Figure CN122005208A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of earplug technology, specifically to an anti-tinnitus earplug with controllable noise reduction level and timed automatic noise discharge, and its usage method. Background Technology
[0002] Most anti-tinnitus earplugs on the market today use foam, silicone, or memory foam as their core materials. They achieve hearing protection by physically sealing the ear canal or absorbing sound waves through internal microporous structures. Some products use a central micro-airway to balance the air pressure inside and outside the ear, thus alleviating the stuffiness and tinnitus symptoms caused by long-term wear. They are mainly used in scenarios where environmental noise interference needs to be reduced, such as during sleep or in the office, and are common daily necessities for improving sleep quality and protecting hearing.
[0003] Existing tinnitus-proof earplugs generally have the problem of fixed noise reduction levels and difficulty in precise adjustment according to individual needs. Too high or too low noise reduction effects can affect the user's sleep state. At the same time, once you enter a sleep state, you no longer need to continuously block out noise, but most earplugs still need to be worn until you wake up. Prolonged pressure on the ear canal can easily cause discomfort or even damage. Summary of the Invention
[0004] The main objective of this invention is to provide an anti-tinnitus earplug with controllable noise reduction level and automatic timed discharge, as well as a method of use, to overcome the problems existing in the prior art.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An anti-tinnitus earplug with controllable noise reduction level and timed automatic discharge includes an earplug body, the earplug body having an integrated noise reduction adjustment component and a timed discharge component. The noise reduction adjustment component includes an outer air bladder on the outer wall of the earbud body, a noise reduction adjustment cavity inside the earbud body, multiple elastic support microspheres in the noise reduction adjustment cavity, and a silicone pressure bladder for inflating the outer air bladder and the noise reduction adjustment cavity. The multiple elastic support microspheres form a compressible capillary bubble structure. Elastic support microspheres are densely arranged in the noise reduction adjustment cavity. By changing the amount of air in the noise reduction adjustment cavity, the density of the capillary bubbles can be adjusted, thereby achieving adjustable noise reduction intensity. The timed venting component includes a knob and a conical needle. The knob can drive the conical needle to move axially to adjust the opening of the venting channel, so as to realize the timed and controllable release of air pressure inside the earbud body.
[0006] Furthermore, a base is provided on one side of the earbud body, a three-way valve is installed inside the base, one side of the outer airbag is connected to the first inflation channel, and one side of the noise reduction adjustment cavity is connected to the second inflation channel.
[0007] Furthermore, the outer airbag is connected to the three-way valve through the first inflation channel, and the noise reduction adjustment cavity is connected to the three-way valve through the second inflation channel. The end of the three-way valve away from the first and second inflation channels is connected to a connecting tube. The three-way valve is connected to the silicone pressure bladder through the connecting tube. One side of the silicone pressure bladder is connected to a gas replenishment channel. Both the connecting tube and the gas replenishment channel are equipped with silicone one-way valve plates to prevent gas backflow.
[0008] The above technical solution allows for adjustment of the expansion degree of the outer airbag by adjusting the noise reduction components, thereby controlling the fit between the earbud body and the ear canal wall.
[0009] Furthermore, one side of the three-way valve is connected to a venting channel, and a retaining ring is fixedly installed at the outlet of the venting channel inside the base.
[0010] Furthermore, the fixed ring has a threaded groove along the axial direction inside, and a threaded post is threaded inside the threaded groove. The knob is fixedly connected to the threaded post, and the tapered needle core is fixedly connected to the end of the threaded post.
[0011] Furthermore, the fixed ring has a threaded groove along the axial direction inside, and a threaded post is threaded inside the threaded groove. The knob is fixedly connected to the threaded post, and the tapered needle core is fixedly connected to the end of the threaded post.
[0012] The above technical solution enables the timed and controllable release of air pressure inside the earplug body through the timed discharge component, thus avoiding tinnitus caused by long-term pressure on the ear canal.
[0013] Furthermore, the earbud body has a central air channel along the axial direction inside, and a dustproof and breathable membrane is installed inside the central air channel.
[0014] Furthermore, the earbud body is made of flexible silicone material, and the elastic support microspheres are made of closed-cell foamed elastic material.
[0015] The above technical solution allows for slight airflow between the ear canal and the outside world through the central airway, preventing the formation of a closed negative pressure environment in the ear canal when wearing earplugs for a long time.
[0016] A method for using an anti-tinnitus earplug with controllable noise reduction level and timed automatic noise discharge includes the following steps: Wear the earbuds in your ear canal and manually press the silicone bladder repeatedly. When you press it, the silicone bladder contracts under external force, and the internal gas is pressurized to open the silicone one-way valve in the connecting tube. The gas flows into the three-way valve in the base in one direction. After being stably diverted by the three-way valve, part of the gas enters the outer air bladder through the first inflation channel, and the other part enters the noise-canceling adjustment cavity through the second inflation channel. Then release the silicone bladder. It automatically rebounds and resets itself due to the high elasticity of its flexible silicone material, creating a negative pressure inside. Under the action of the negative pressure, the outside air opens the silicone one-way valve in the air replenishment channel and enters the silicone bladder in one direction to complete the automatic air replenishment and achieve continuous cyclic inflation. When the outer air bladder is inflated, the earplug body fits tightly against the ear canal wall. The change in air pressure inside the noise reduction and adjustment cavity causes the densely arranged elastic support microspheres inside to produce controllable compression and deformation, adjusting the density of capillary bubbles between the microspheres. At the same time, the central air channel opened along the axis inside the earplug body allows for slight air circulation between the ear canal and the outside. After noise reduction adjustment, based on your own wearing time requirements, the timed release component enables timed and controllable release of air pressure. Manually rotate the knob in advance to drive the threaded column to move axially, which in turn drives the conical needle core to move synchronously. The conical needle core is adapted to the air release channel, and the flow cross-sectional area of the air release channel is adjusted. The high-pressure gas inside the earbud body enters the cavity through the air release channel and is then smoothly discharged through the exhaust hole.
[0017] Compared with the prior art, the present invention has the following beneficial effects: By adjusting the settings of the noise-canceling components, the silicone pressure bladder, combined with a three-way valve and two inflation channels, can control the expansion and fit of the outer air bladder and the density of capillary bubbles between the elastic support microspheres in the noise-canceling adjustment cavity. This allows the earbud to fit tightly against the ear canal wall, improving the sealing and sound insulation effect and wearing stability. It also enables continuous adjustment of the noise reduction intensity to adapt to different usage scenarios and user needs. At the same time, the silicone one-way valve and air replenishment channel enable stable cyclic inflation. The structure is simple, easy to operate, has no electronic components, is safe and free from electromagnetic interference, and the use of elastic support microspheres and flexible silicone material ensures that the product has good elasticity, strong resilience, comfortable wearing, and long service life. Overall, it greatly improves the user experience, sound insulation effect and practicality of the earbud. By using a timed venting mechanism, a knob can be used to move the threaded post axially along the threaded groove within the retaining ring. This drives the tapered needle core to precisely adjust the cross-sectional area of the venting channel, enabling timed and controllable release of internal air pressure in the earbud body. This effectively prevents tinnitus caused by prolonged pressure in the ear canal. The knob is easy to operate, the threaded post and groove provide precise and stable transmission, the retaining ring offers reliable support, the tapered needle core allows for linear adjustment of the venting channel opening, the cavity buffers airflow, and the vent hole ensures smooth exhaust. The entire component is integrated into the base, has a compact structure, requires no additional power, and enhances wearing comfort and safety. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 This is a schematic diagram of the overall internal structure of the present invention.
[0020] Figure 3 This is a schematic diagram of the three-way valve connection structure of the present invention.
[0021] Figure 4 This is a schematic diagram of the overall structure of the three-way valve of the present invention.
[0022] Figure 5 This is a schematic diagram of the overall structure of the conical needle core of the present invention.
[0023] Explanation of reference numerals in the attached diagram: 1. Earplug body; 2. Outer airbag; 3. Noise-canceling adjustment cavity; 4. Elastic support microsphere; 5. Silicone pressure bladder; 6. Base; 7. Three-way valve; 8. First inflation channel; 9. Second inflation channel; 10. Connecting tube; 11. Silicone one-way valve plate; 12. Deflator channel; 13. Fixing ring; 14. Conical needle core; 15. Threaded post; 16. Knob; 17. Threaded groove; 18. Exhaust port; 19. Central airway; 20. Dustproof and breathable membrane; 21. Cavity; 22. Air supply channel. Detailed Implementation
[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings and embodiments.
[0025] Example 1
[0026] This embodiment provides an anti-tinnitus earplug with controllable noise reduction level and timed automatic discharge, including an earplug body 1. The earplug body 1 integrates an adjustable noise reduction component and a timed discharge component. The adjustable noise reduction component includes an outer air bladder 2 disposed on the outer wall of the earplug body 1, a noise reduction adjustment cavity 3 disposed inside the earplug body 1, multiple elastic support microspheres 4 disposed in the noise reduction adjustment cavity 3, and a silicone pressure bladder 5 for inflating the outer air bladder 2 and the noise reduction adjustment cavity 3. The multiple elastic support microspheres 4 form a compressible capillary bubble structure. The elastic support microspheres 4 are densely arranged in the noise reduction adjustment cavity 3. By changing the inflation volume in the noise reduction adjustment cavity 3, the density of the capillary bubbles can be adjusted, thereby achieving adjustable noise reduction intensity. The timed discharge component includes a knob 16 and a conical needle core 14. The knob 16 can drive the conical needle core 14 to move axially to adjust the opening of the venting channel 12, so as to realize the timed and controllable release of air pressure inside the earplug body 1. With this solution, the earbuds contain no electronic devices and will not interfere with the brain.
[0027] Reference Figures 1-5The earbud body 1 has a base 6 on one side, and a three-way valve 7 is installed inside the base 6. The outer airbag 2 is connected to a first inflation channel 8 on one side, and the noise-canceling adjustment cavity 3 is connected to a second inflation channel 9 on one side. The earbud body 1 is made of flexible silicone material, and the elastic support microspheres 4 are made of closed-cell foamed elastic material. The outer airbag 2 is connected to the three-way valve 7 through the first inflation channel 8, and the noise-canceling adjustment cavity 3 is connected to the three-way valve 7 through the second inflation channel 9. The end of the three-way valve 7 away from the first inflation channel 8 and the second inflation channel 9 is connected to a connecting tube 10. The three-way valve 7 is connected to the silicone pressure bladder 5 through the connecting tube 10. The silicone pressure bladder 5 is connected to an air replenishment channel 22 on one side. Both the connecting tube 10 and the air replenishment channel 22 are equipped with silicone one-way valve plates 11 to prevent gas backflow. The earbud body 1 is made of flexible silicone material, and the elastic support microspheres 4 are made of closed-cell foamed elastic material.
[0028] By adjusting the noise-canceling components, the expansion degree of the outer air bladder 2 can be adjusted to control the fit between the earbud body 1 and the ear canal wall. At the same time, the inflation volume in the noise-canceling adjustment cavity 3 can be adjusted, changing the density of the capillary bubbles between the elastic support microspheres 4, thereby achieving controllable adjustment of the noise-canceling intensity. The specific operation method is as follows: First, manually and repeatedly press the silicone pressure bladder 5. When pressed, the silicone pressure bladder 5 is contracted by external force, and the internal gas is pressurized and pushes open the silicone one-way valve plate 11 in the connecting tube 10, allowing the gas to flow into the three-way valve 7 in one direction. Then, through the three-way valve 7, the gas is stably diverted. A portion of the gas enters the outer airbag 2 smoothly through the first inflation channel 8, and the other portion of the gas enters the noise reduction and adjustment cavity 3 evenly through the second inflation channel 9. After releasing the gas, the silicone press bladder 5 automatically rebounds and resets itself due to the high elasticity of its flexible silicone material. At this time, a negative pressure is formed inside the bladder. Under the action of the negative pressure, the outside air pushes open the silicone one-way valve plate 11 in the air replenishment channel 22 and enters the silicone press bladder 5 in one direction to complete the automatic air replenishment, thereby realizing continuous, cyclical and stable inflation operation. By setting two silicone one-way valve plates 11 in the connecting pipe 10 and the air supply channel 22 respectively, it can strictly ensure that the gas can only enter and not exit and flow in a directional manner, effectively preventing gas backflow and cavity depressurization, and ensuring that the air pressure in the outer airbag 2 and the noise reduction and adjustment cavity 3 is stable for a long time. The three-way valve 7 is integrated in the base 6, which can supply air to the two cavities at the same time through a single inflation structure. The structure is compact, the layout is reasonable, and there are no extra pipelines, which greatly simplifies the operation process. Next, the outer airbag 2 inflates and expands gradually, allowing the earplug body 1 to gently and tightly fit the ear canal wall, improving the sealing effect and wearing stability, and preventing loosening and sound leakage. At the same time, the air pressure change in the noise reduction adjustment cavity 3 can cause the densely arranged elastic support microspheres 4 inside to produce controllable compression and deformation, thereby precisely adjusting the density of the capillary bubbles between the microspheres, realizing continuous adjustment of the noise reduction intensity from weak to strong, and meeting the sound insulation needs of different people and different environments. The elastic support microspheres 4 are made of closed-cell foamed elastic material, which has excellent elasticity, resilience and support. They can be repeatedly squeezed and deformed and quickly return to their original shape. They have a long service life and stable and reliable adjustment. The earbud body 1 is made of medical-grade flexible silicone material, which is soft and skin-friendly, biocompatible and non-irritating. Long-term wear will not cause pressure, damage or discomfort to the ear canal. The entire structure has no electronic components, so there are no electromagnetic radiation or circuit interference issues. It is safer, more stable and comfortable to use, and achieves controllable noise reduction function.
[0029] In this embodiment, by adjusting the settings of the noise reduction components, the silicone pressure bladder 5, in conjunction with the three-way valve 7 and two inflation channels, can control the expansion and fit of the outer air bladder 2 and the density of the capillary bubbles between the elastic support microspheres 4 inside the noise reduction adjustment cavity 3. This allows the earplug body 1 to fit tightly against the ear canal wall, improving the sealing and sound insulation effect and wearing stability. It also enables continuous adjustment of the noise reduction intensity to adapt to different usage scenarios and user needs. At the same time, it works with the silicone one-way valve 11 and the air replenishment channel 22 to achieve stable cyclic inflation. The structure is simple, easy to operate, has no electronic components, is safe and free from electromagnetic interference, and the use of elastic support microspheres 4 and flexible silicone material ensures that the product has good elasticity, strong resilience, comfortable wearing, and long service life. Overall, it greatly improves the user experience, sound insulation effect and practicality of the earplug body 1.
[0030] Reference Figures 1-5 One side of the three-way valve 7 is connected to a venting channel 12. A fixing ring 13 is fixedly installed in the base 6 at the outlet of the venting channel 12. The fixing ring 13 has a threaded groove 17 axially opened inside. A threaded post 15 is threaded inside the threaded groove 17. The knob 16 is fixedly connected to the threaded post 15. A conical needle core 14 is fixedly connected to the end of the threaded post 15. The end of the threaded groove 17 is connected to a cavity 21 with a diameter larger than the maximum outer diameter of the conical needle core 14. An exhaust hole 18 is opened on the side wall of the cavity 21. The maximum outer diameter of the conical needle core 14 is adapted to the inner diameter of the venting channel 12 and is used to adjust the flow cross-sectional area of the venting channel 12 when moving axially.
[0031] The timed release component enables the timed and controllable release of air pressure inside the earplug body 1, avoiding tinnitus caused by long-term pressure on the ear canal. The specific operation method is as follows: First, wear the earplug and adjust the noise reduction component to complete the inflation and achieve the desired noise reduction effect. Then, according to your own wearing time requirements (such as different scenarios such as sleep and work, to avoid discomfort or tinnitus caused by long-term high pressure in the ear canal), manually rotate the knob 16. Since the knob 16 is fixedly connected to the threaded post 15, and the threaded post 15 is threadedly engaged with the threaded groove 17 inside the fixing ring 13, rotating the knob 16 will drive the threaded post 15 to move axially along the threaded groove 17, thereby driving the conical needle core 14 fixed at the end of the threaded post 15 to move axially synchronously. Since the maximum outer diameter of the conical needle core 14 is matched with the inner diameter of the venting channel 12, its axial movement can precisely adjust the flow cross-sectional area of the venting channel 12, and realize the controllable adjustment of the pressure relief speed. When adjusted to a suitable flow cross-sectional area, the high-pressure gas inside the earbud body 1 (inside the outer airbag 2 and the noise reduction adjustment cavity 3) will slowly flow out through the venting channel 12 connected to one side of the three-way valve 7, enter the cavity 21 at the end of the fixing ring 13, and then be discharged to the outside through the exhaust hole 18 opened on the side wall of the cavity 21, thereby achieving timed and stable pressure relief. The knob 16 is designed for easy manual operation, convenient adjustment, and precise control of the rotation angle, thereby accurately controlling the pressure relief speed to meet the pressure relief duration needs of different users. The threaded engagement structure between the threaded column 15 and the threaded groove 17 is stable and precise, ensuring the smooth axial movement of the conical needle core 14 and preventing adjustment jamming or offset. The fixing ring 13 is fixedly installed in the base 6 at the outlet of the corresponding venting channel 12, providing stable installation support for the threaded column 15 and the conical needle core 14, ensuring the structural stability of the entire timed discharge assembly. The conical needle core 14 adopts a conical structure adapted to the venting channel 12, enabling linear adjustment of the opening of the venting channel 12, from completely closed. The maximum opening can be flexibly adjusted to adapt to different pressure relief needs. The cavity 21 can buffer the outflowing gas to avoid airflow noise caused by rapid gas discharge. At the same time, it works with the exhaust port 18 to achieve smooth gas discharge. The venting channel 12 is directly connected to the three-way valve 7, which can quickly discharge the high-pressure gas inside the earplug body 1. The entire timed discharge component is compact and integrated into the base 6. The layout is reasonable. No additional power is required. Manual adjustment can achieve timed and controllable pressure relief. It effectively solves the problem of ear canal pressure and tinnitus caused by long-term wear of traditional earplugs. It further improves the wearing comfort and safety of earplugs and is suitable for various long-term wearing scenarios such as sleep, office, and workshop.
[0032] For example, when the knob 16 can be rotated clockwise up to 720° (two turns), the conical needle core 14 is fully embedded in the venting channel 12, with the smallest flow cross-sectional area, making it suitable for scenarios requiring long-term wear, such as long sleep or long-distance travel. If pressure relief is needed in a short time, it can be rotated clockwise one turn or half a turn. If pressure relief is needed temporarily after wearing, it can be rotated 180° counterclockwise from the state of 360° clockwise to shorten the pressure relief time and complete the adjustment.
[0033] In this embodiment, by setting a timed venting component, before sleep, the knob 16 drives the threaded post 15 to move axially along the threaded groove 17 in the fixing ring 13, driving the conical needle core 14 to precisely adjust the flow cross-sectional area of the venting channel 12, realizing the timed and controllable release of air pressure inside the earplug body 1, effectively avoiding tinnitus caused by long-term pressure on the ear canal. Moreover, the knob 16 is easy to operate, the threaded post 15 and the threaded groove 17 have precise and stable transmission, the fixing ring 13 provides reliable support, the conical needle core 14 can linearly adjust the opening of the venting channel 12, the cavity 21 buffers the airflow, and the exhaust hole 18 achieves smooth exhaust. The entire component is integrated into the base 6, with a compact structure and no additional power required, improving wearing comfort and safety.
[0034] Reference Figure 1 and Figure 2 The earplug body 1 has a central air channel 19 axially arranged inside, and a dustproof and breathable membrane 20 is provided inside the central air channel 19.
[0035] The central airway 19 allows for slight airflow between the inside of the ear canal and the outside, preventing the formation of a closed negative pressure environment in the ear canal when wearing earplugs for a long time. This reduces stuffiness and dampness in the ear canal, effectively relieving ear discomfort and lowering the risk of tinnitus and ear canal inflammation. At the same time, it compensates for the insufficient breathability caused by the sealing of the outer airbag 2.
[0036] In this embodiment, the dustproof and breathable membrane 20 is made of polytetrafluoroethylene microporous membrane, which can effectively block external dust, impurities, fine particles and other objects from entering the ear canal, preventing dust from adhering to the inner wall of the ear canal or blocking the central airway 19. This not only protects the health of the ear canal, but also prevents dust from affecting the normal operation of the internal components of the earplug and extends the service life of the earplug.
[0037] Example 2
[0038] This embodiment provides a method for using an anti-tinnitus earplug that allows control over noise reduction levels and automatic timed noise discharge, specifically including the following steps: First, wear the earbud body 1 into the ear canal. Manually press the silicone pressure bladder 5 repeatedly. When pressed, the silicone pressure bladder 5 contracts under external force, and the internal gas is pressurized to open the silicone one-way valve 11 in the connecting tube 10. The gas flows into the three-way valve 7 in the base 6 in one direction. After being stably diverted by the three-way valve 7, part of the gas enters the outer air bladder 2 through the first inflation channel 8, and the other part of the gas enters the noise reduction adjustment cavity 3 through the second inflation channel 9. After releasing the pressure, the silicone pressure bladder 5 automatically rebounds and resets itself due to the high elasticity of its flexible silicone material. A negative pressure is formed inside. Under the action of the negative pressure, the outside air opens the silicone one-way valve 11 in the air replenishment channel 22 and enters the silicone pressure bladder 5 in one direction to complete the automatic air replenishment and achieve continuous cyclic inflation. Next, after the outer airbag 2 is inflated, the earplug body 1 gently and tightly fits the ear canal wall, improving the sealing effect and wearing stability, and preventing loosening and sound leakage. The air pressure change in the noise reduction adjustment cavity 3 causes the densely arranged elastic support microspheres 4 (made of closed-cell foam elastic material) to produce controllable compression and deformation, adjusting the density of capillary bubbles between the microspheres, thereby achieving continuous adjustment of noise reduction intensity from weak to strong, meeting the sound insulation needs of different scenarios and people. Meanwhile, the central airway 19 opened along the axial direction inside the earplug body 1 allows for slight air circulation between the ear canal and the outside world, making up for the insufficient breathability caused by the sealing of the outer airbag 2. The dustproof and breathable membrane 20 made of polytetrafluoroethylene microporous membrane inside can effectively block external dust and impurities from entering the ear canal, protect the health of the ear canal and extend the service life of the earplug. After noise reduction adjustment, based on the wear duration requirement, the timed release component enables timed and controllable air pressure release. The knob 16 is manually rotated in advance. Since the knob 16 is fixedly connected to the threaded post 15, and the threaded post 15 is threadedly engaged with the threaded groove 17 in the fixing ring 13, the rotation drives the threaded post 15 to move axially, thereby driving the conical needle core 14 to move synchronously. The conical needle core 14 adjusts the flow cross-sectional area of the venting channel 12 by matching its size. The high-pressure gas inside the earplug body 1 enters the cavity 21 through the venting channel 12, and then is smoothly discharged through the exhaust hole 18, realizing timed and slow pressure release to avoid tinnitus caused by long-term pressure in the ear canal.
[0039] The above description is merely a preferred embodiment of the present invention and does not constitute any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.
Claims
1. A tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge, characterized in that, Includes an earplug body (1), the earplug body (1) having an integrated noise reduction adjustment component and a timed discharge component; The noise reduction adjustment assembly includes an outer air bladder (2) disposed on the outer wall of the earbud body (1), a noise reduction adjustment cavity (3) disposed inside the earbud body (1), a plurality of elastic support microspheres (4) disposed in the noise reduction adjustment cavity (3), and a silicone pressure bladder (5) for inflating the outer air bladder (2) and the noise reduction adjustment cavity (3). The plurality of elastic support microspheres (4) form a compressible capillary bubble structure. The elastic support microspheres (4) are densely arranged in the noise reduction adjustment cavity (3). By changing the amount of air filling in the noise reduction adjustment cavity (3), the density of the capillary bubbles can be adjusted, thereby achieving adjustable noise reduction intensity. The timed discharge assembly includes a knob (16) and a conical needle core (14). The knob (16) can drive the conical needle core (14) to move axially to adjust the opening of the venting channel (12) and realize the timed and controllable release of the internal air pressure of the earplug body (1).
2. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 1, characterized in that, The earplug body (1) has a base (6) on one side, a three-way valve (7) is installed in the base (6), the outer airbag (2) has a first inflation channel (8) on one side, and the noise reduction adjustment cavity (3) has a second inflation channel (9) on one side.
3. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 2, characterized in that, The outer airbag (2) is connected to the three-way valve (7) through the first inflation channel (8), and the noise reduction adjustment cavity (3) is connected to the three-way valve (7) through the second inflation channel (9). The end of the three-way valve (7) away from the first inflation channel (8) and the second inflation channel (9) is connected to a connecting pipe (10). The three-way valve (7) is connected to the silicone pressure bladder (5) through the connecting pipe (10). One side of the silicone pressure bladder (5) is connected to a replenishment channel (22). Both the connecting pipe (10) and the replenishment channel (22) are equipped with silicone one-way valve plates (11) to prevent gas backflow.
4. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 3, characterized in that, One side of the three-way valve (7) is connected to a venting channel (12), and a fixing ring (13) is fixedly installed in the base (6) at the outlet of the venting channel (12).
5. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 4, characterized in that, The fixed ring (13) has a threaded groove (17) axially inside, and a threaded post (15) is threaded inside the threaded groove (17). The knob (16) is fixedly connected to the threaded post (15), and the conical needle core (14) is fixedly connected to the end of the threaded post (15).
6. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 5, characterized in that, The end of the threaded groove (17) is connected to a cavity (21) with a diameter greater than the maximum outer diameter of the conical needle core (14). The side wall of the cavity (21) is provided with an exhaust hole (18). The maximum outer diameter of the conical needle core (14) is adapted to the inner diameter of the venting channel (12) to adjust the flow cross-sectional area of the venting channel (12) when moving axially.
7. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 1, characterized in that, The earplug body (1) has a central air passage (19) axially arranged inside, and a dustproof and breathable membrane (20) is provided inside the central air passage (19).
8. The tinnitus-preventing earplug with controllable noise reduction level and timed automatic noise discharge as described in claim 1, characterized in that, The earplug body (1) is made of flexible silicone material, and the elastic support microspheres (4) are made of closed-cell foamed elastic material.
9. A method of using an anti-tinnitus earplug with controllable noise reduction level and timed automatic noise discharge, based on the earplug of any one of claims 1-8, characterized in that, Includes the following steps: Wear the earplug body (1) in the ear canal and manually press the silicone pressure bladder (5) repeatedly. When pressed, the silicone pressure bladder (5) is contracted by external force, and the internal gas is pressurized to open the silicone one-way valve plate (11) in the connecting tube (10). The gas flows into the three-way valve (7) in the base (6) in one direction. After being stably diverted by the three-way valve (7), part of the gas enters the outer air bladder (2) through the first inflation channel (8), and the other part of the gas enters the noise reduction adjustment cavity (3) through the second inflation channel (9). Then release the silicone press bladder (5), which automatically rebounds and resets itself due to the high elasticity of its flexible silicone material, forming a negative pressure inside. Under the action of the negative pressure, the outside air pushes open the silicone one-way valve plate (11) in the air replenishment channel (22) and enters the silicone press bladder (5) in one direction to complete the automatic air replenishment and realize continuous cyclic inflation. When the outer air bladder (2) is inflated, the earplug body (1) fits tightly against the ear canal wall. The change in air pressure in the noise reduction adjustment cavity (3) causes the densely arranged elastic support microspheres (4) inside to produce controllable compression and deformation, adjusting the density of capillary bubbles between the microspheres. At the same time, the central air channel (19) opened along the axial direction inside the earplug body (1) realizes slight gas flow between the ear canal and the outside world. After noise reduction adjustment is completed, according to the wear time requirement, the air pressure can be released in a timed controllable manner by using the timed discharge component. Manually rotate the knob (16) in advance to drive the threaded column (15) to move axially, thereby driving the conical needle core (14) to move synchronously. The conical needle core (14) is adapted to the venting channel (12), and the flow cross-sectional area of the venting channel (12) is adjusted. The high pressure gas inside the earphone body (1) enters the cavity (21) through the venting channel (12) and is then smoothly discharged through the exhaust hole (18).