Hearing assisting device based on bone conduction

Abstract

The invention provides hearing aid equipment based on bone conduction, and belongs to the technical field of bone conduction equipment. Comprising a head band and bone conduction sound transmission devices installed at the two ends of the head band, and further comprises a noise reduction mechanism, and the noise reduction mechanism comprises connecting strips fixed to the tops of the bone conduction sound transmission devices. According to the bone conduction hearing aid, the earplug and the main elastic piece are arranged, the earplug is positioned on the side face of the main elastic piece, after the bone conduction hearing aid is worn, the earplug is plugged into the external auditory canal of a user, external noise is blocked through the earplug, and the external noise is effectively prevented from being transmitted to the auditory nerve of the inner ear of the user; according to the bone conduction hearing aid, sound of normal dialogue is stably transmitted to auditory nerves of inner ears of a user through the bone conduction hearing aid, so that the user can hear the dialogue clearly in a noisy environment, meanwhile, the earplugs are positioned under the elastic action of the main elastic pieces, the earplugs can be prevented from falling from external auditory canals of the user through the main elastic pieces, and the safety of the user is improved. And the wearing stability of the earplug is ensured.

Description

Technical Field

[0001] This invention relates to the field of bone conduction device technology, and in particular to a hearing aid based on bone conduction. Background Technology

[0002] Bone conduction-based hearing aids are hearing assistance tools that work through bone conduction technology. They convert sound into mechanical vibrations and transmit them to the skull, which then conducts them to the auditory nerve in the inner ear, helping users perceive sound. They are suitable for patients with conductive hearing loss, people whose external auditory canal or middle ear is not suitable for wearing traditional hearing aids, and others.

[0003] Common bone conduction-based hearing aids involve wearing the hearing aid on the user's head, with the bone conduction transmitter fitting against the user's skull to assist hearing. However, due to the unclosed external auditory canal, external noise can be transmitted to the user's inner ear auditory nerve in noisy environments, making it difficult to hear conversations clearly. Therefore, this application provides a bone conduction-based hearing aid to meet this need. Summary of the Invention

[0004] This invention provides a bone conduction-based hearing aid to address the problem that, due to the user's external auditory canal not being closed, external noise in noisy environments can be transmitted to the user's inner ear auditory nerve through the external auditory canal, making it difficult to hear conversations clearly in noisy environments.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] A bone conduction-based hearing aid includes a headband and bone conduction microphones mounted at both ends of the headband, and further includes:

[0007] The noise reduction mechanism includes a connecting strip fixed to the top of the bone conduction microphone, a square cover fixed to the end of the connecting strip, an adjusting plate slidably connected inside the square cover, a locking screw threaded to the side of the square cover, the end of the locking screw abutting against the side of the adjusting plate, a main spring plate fixed to the bottom of the adjusting plate, a positioning component provided on the side of the main spring plate, a rubber seat provided inside the positioning component, and an earplug fixed to the side of the rubber seat.

[0008] When worn, the bone conduction microphone is placed against the wearer's skull, and the earplug is inserted into the wearer's ear canal.

[0009] Preferably, the positioning component includes a positioning ring fixed to the side of the main spring piece, a rubber seat inserted into the positioning ring, auxiliary spring pieces integrally formed on opposite sides of the main spring piece, the auxiliary spring pieces being separate from the positioning ring, an L-shaped piece fixed to one side of the auxiliary spring piece corresponding to the positioning ring, an annular groove formed on the circumferential surface of the rubber seat, and a notch formed on the positioning ring corresponding to the L-shaped piece, the L-shaped piece passing through the notch and being engaged in the annular groove.

[0010] Preferably, a vertical groove is provided at the connection between the auxiliary spring and the main spring.

[0011] Preferably, a connecting piece is fixed to the side of the auxiliary spring piece away from the positioning ring, and a lever is fixed to the side of the connecting piece. The lever is arc-shaped, and the end of the lever away from the connecting piece bends away from the main spring piece. A support block is fixed to the side of the main spring piece, and the lever fits against the support block.

[0012] Preferably, the side of the lever away from the connecting piece is wound into a winding portion.

[0013] Preferably, the thickness of the main spring sheet is greater than the thickness of the auxiliary spring sheet.

[0014] Preferably, a hollow groove is formed on the side of the main spring sheet corresponding to the position of the positioning ring.

[0015] Preferably, the auxiliary spring is arc-shaped, and its center is located on the central axis of the positioning ring.

[0016] Preferably, a round strip is fixed to the side of the square cover, and the round strip is fixed to the connecting strip.

[0017] Preferably, the adjusting plate has multiple elongated grooves on its side near the top.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] In the above solution, by setting up an earplug and a main spring, the earplug is positioned on the side of the main spring. After wearing the bone conduction hearing aid, the earplug is inserted into the user's external auditory canal. The earplug blocks external noise, effectively preventing external noise from being transmitted to the user's inner ear auditory nerve. This allows the sound of normal conversation to be stably transmitted to the user's inner ear auditory nerve through the bone conduction hearing aid, thus effectively ensuring that the user can hear conversations clearly even in noisy environments. At the same time, the earplug is positioned by the elasticity of the main spring, which also prevents the earplug from falling out of the user's external auditory canal, ensuring the stability of the earplug.

[0020] The adjustable tab can be moved inside the cover to change the position of the earbud. After adjusting to the appropriate position, tighten the locking screw. By adjusting the position of the earbud, it can be adapted to the use of different types of people.

[0021] By setting an auxiliary spring and an L-shaped piece, the L-shaped piece is locked in the annular groove on the rubber seat under the elastic force of the auxiliary spring, thereby achieving stable positioning of the earplug, preventing the earplug from moving on the side of the main spring, improving the positioning stability of the earplug by the main spring, and further improving the wearing stability of the earplug.

[0022] By using a paddle and a support block, when the earbud needs to be replaced, pinch the paddle. The support block provides a fulcrum for the paddle. By pinching the ends of the paddles, the ends of the two paddles are brought closer together, which deforms the auxiliary spring and causes the L-shaped piece to separate from the annular groove. After separation, the earbud can be removed from the side of the main spring. Then, insert the rubber seat on the new earbud into the positioning ring, and release the paddle. The L-shaped piece will be locked back into the annular groove under the elastic force of the auxiliary spring, thus realizing the replacement of the earbud. The earbud is easy to install and remove, making it convenient to replace the earbud.

[0023] By incorporating a winding section located at the end of the paddle, a stable point of force is provided when the paddle is gripped, preventing slippage and thus improving the stability of earphone replacement.

[0024] By setting a vertical groove at the connection point between the auxiliary spring and the main spring, the connection area between the auxiliary spring and the main spring is reduced, thereby reducing the force that drives the deformation of the auxiliary spring and further improving the convenience of earphone replacement.

[0025] By setting a perforated groove, which is opened on the side of the main spring piece corresponding to the position of the rubber seat, when the rubber seat is inserted into the positioning ring, it is possible to observe whether the rubber seat is in contact with the main spring piece through the perforated groove, thus providing a positioning reference for the subsequent L-shaped piece to be inserted into the annular groove. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 This is a three-dimensional structural diagram of the square cover of the present invention;

[0028] Figure 3 This is a cross-sectional view of the main spring clip of the present invention;

[0029] Figure 4 This is a cross-sectional view of the earplug portion of the present invention;

[0030] Figure 5 This is a three-dimensional structural diagram of the lever part of the present invention;

[0031] Figure 6 This is a three-dimensional structural diagram of the L-shaped piece of the present invention;

[0032] Figure 7 This is a three-dimensional structural diagram of the hollowed-out groove of the present invention;

[0033] Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning ring of the present invention;

[0034] Figure 9 This is a three-dimensional structural diagram of the rubber seat of the present invention.

[0035] In the diagram: 1. Bone conduction microphone; 2. Headband; 3. Noise reduction mechanism; 4. Connecting strip; 5. Square cover; 6. Adjustment plate; 7. Main spring plate; 8. Earplug; 9. Positioning component; 10. Auxiliary spring plate; 11. Connecting plate; 12. Paddle; 13. Winding part; 14. Support block; 15. L-shaped plate; 16. Annular groove; 17. Rubber seat; 18. Positioning ring; 19. Hollowed-out groove; 20. Vertical groove; 21. Locking screw; 22. Notch.

[0036] As shown in the figure, specific structures and devices are labeled in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation

[0037] The following is a detailed description of a bone conduction-based hearing aid device provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0038] like Figures 1-9 As shown, an embodiment of the present invention provides a bone conduction-based hearing aid device, including a headband 2 and bone conduction microphones 1 installed at both ends of the headband 2, and further comprising:

[0039] The noise reduction mechanism 3 includes a connecting strip 4 fixed to the top of the bone conduction microphone 1. A square cover 5 is fixed to the end of the connecting strip 4. An adjusting plate 6 is slidably connected inside the square cover 5. A locking screw 21 is threadedly connected to the side of the square cover 5. The end of the locking screw 21 abuts against the side of the adjusting plate 6. A main spring plate 7 is fixed to the bottom of the adjusting plate 6. A positioning component 9 is provided on the side of the main spring plate 7. A rubber seat 17 is provided inside the positioning component 9. An earplug 8 is fixed to the side of the rubber seat 17.

[0040] When worn, the bone conduction microphone 1 fits against the wearer's skull, and the earplug 8 is inserted into the wearer's ear canal. The headband 2 provides support for the bone conduction microphone 1 and the noise reduction mechanism 3, ensuring that the device is stably fixed to the head. The bone conduction microphone 1, fitting against the skull, transmits conversational sounds to the auditory nerve in the inner ear. The adjustment plate 6 slides within the square cover 5, and together with the locking screw 21, adjusts the up and down position of the earplug 8 to fit the ear canal position of different people. The main spring plate 7 provides elasticity to ensure that the earplug 8 fits tightly against the external auditory canal, enhancing the sound insulation effect and preventing it from falling out. The positioning component 9 fixes the rubber base 17 and the earplug 8 to prevent the earplug 8 from shifting, ensuring noise reduction and wearing stability.

[0041] like Figures 2-6 As shown in this embodiment, the positioning component 9 includes a positioning ring 18 fixed to the side of the main spring piece 7, a rubber seat 17 inserted into the positioning ring 18, and auxiliary spring pieces 10 integrally formed on opposite sides of the main spring piece 7. The auxiliary spring pieces 10 are separate from the positioning ring 18, and an L-shaped piece 15 is fixed to one side of the auxiliary spring piece 10 corresponding to the positioning ring 18. An annular groove 16 is provided on the circumferential surface of the rubber seat 17, and a notch 22 is provided on the positioning ring 18 corresponding to the L-shaped piece 15. The L-shaped piece 15 passes through the notch 22 and is locked in the annular groove 16. The positioning ring 18 initially limits the rubber seat 17 to ensure accurate installation. The auxiliary spring piece 10 provides elastic force to stably lock the L-shaped piece 15 into the annular groove 16, thereby fixing the rubber seat 17 and the main spring piece 7 and preventing the earplug 8 from moving. The notch 22 provides a passage for the L-shaped piece 15 to pass through, so that the L-shaped piece 15 can be accurately locked into the annular groove 16, improving positioning reliability and ensuring that the earplug 8 does not shift when worn.

[0042] like Figure 7 As shown in this embodiment, a vertical groove 20 is provided at the connection between the auxiliary spring 10 and the main spring 7. The vertical groove 20 reduces the connection area between the auxiliary spring 10 and the main spring 7, reduces the force required for the deformation of the auxiliary spring 10, and makes it easier to replace the earplug 8.

[0043] like Figure 5 and Figure 7 As shown in this embodiment, a connecting piece 11 is fixed to the side of the auxiliary spring piece 10 away from the positioning ring 18. A paddle 12 is fixed to the side of the connecting piece 11. The paddle 12 is arc-shaped, and the end of the paddle 12 away from the connecting piece 11 bends away from the main spring piece 7. A support block 14 is fixed to the side of the main spring piece 7. The paddle 12 fits against the support block 14. The connecting piece 11 connects the auxiliary spring piece 10 and the paddle 12, so that the operating force of the paddle 12 is transmitted to the auxiliary spring piece 10. The arc-shaped paddle 12 is easy to pinch and apply force. The support block 14 serves as a fulcrum, so that when the end of the paddle 12 is close, it can stably drive the auxiliary spring piece 10 to deform, realize the separation of the L-shaped piece 15 from the annular groove 16, and improve the convenience of earplug 8 replacement.

[0044] like Figure 5 and Figure 7As shown in this embodiment, the side of the paddle 12 away from the connecting piece 11 is wound with a winding part 13. The winding part 13 provides an anti-slip force application point to avoid insufficient force due to hand slippage during operation, ensuring that the auxiliary spring piece 10 is fully deformed and improving the operational stability of earplug 8 replacement.

[0045] like Figure 5 As shown in this embodiment, the thickness of the main spring 7 is greater than the thickness of the auxiliary spring 10. The greater thickness of the main spring 7 ensures its support strength and elastic stability, allowing the earplug 8 to continuously fit the external auditory canal. The smaller thickness of the auxiliary spring 10 reduces deformation resistance, making it easier to drive its deformation through the paddle 12 to complete the installation and removal of the earplug 8.

[0046] like Figure 5 As shown in this embodiment, a hollow groove 19 is provided on the side of the main spring piece 7 corresponding to the position of the positioning ring 18. The hollow groove 19 facilitates observation of the fit between the rubber seat 17 and the main spring piece 7, provides a positioning reference for the L-shaped piece 15 to be inserted into the annular groove 16, ensures proper installation, and at the same time reduces the weight of the main spring piece 7 and improves wearing comfort.

[0047] like Figure 5 As shown in this embodiment, the auxiliary spring piece 10 is arc-shaped, and its center is located on the central axis of the positioning ring 18. The arc-shaped design allows the auxiliary spring piece 10 to connect with the main spring piece 7 only at both ends, preventing a large-area connection from increasing the force driving the deformation of the auxiliary spring piece 10.

[0048] like Figure 3 As shown in this embodiment, a round strip is fixed to the side of the square cover 5. The round strip is fixed to the connecting strip 4. The round strip increases the connection area between the square cover 5 and the connecting strip 4, disperses the force at the connection point, and improves the connection strength between the two.

[0049] like Figure 2 As shown in this embodiment, multiple elongated grooves are provided on the side of the adjusting plate 6 near the top. The elongated grooves provide anti-slip force points for pulling the adjusting plate 6 to move, preventing slippage when the adjusting plate 6 is pulled.

[0050] Working principle: When wearing, the headband 2 is worn on the head, so that the bone conduction transmitters 1 at both ends fit against the skull. At the same time, the earplug 8 is inserted into the external auditory canal. The earplug 8 is connected to the positioning component 9 through the rubber seat 17. The positioning ring 18 initially limits the rubber seat 17. The L-shaped piece 15 on the side of the auxiliary spring piece 10 passes through the notch 22 and is locked in the annular groove 16 to achieve stable fixation of the rubber seat 17 and prevent the earplug 8 from moving on the side of the main spring piece 7. The elasticity of the main spring piece 7 acts on the earplug 8, which not only ensures that the earplug 8 fits tightly against the inner wall of the external auditory canal, effectively blocking external noise and allowing the dialogue sound transmitted by the bone conduction transmitter 1 to reach the inner ear auditory nerve clearly, but also prevents the earplug 8 from falling out of the external auditory canal and ensures wearing stability.

[0051] To accommodate the different ear canal positions of different people, the position of the earplug 8 can be adjusted. When adjusting, loosen the locking screw 21 on the side of the square cover 5 and push the adjusting plate 6 to slide inside the square cover 5. The adjusting plate 6 drives the earplug 8 to move up or down simultaneously through the main spring plate 7. After adjusting to the appropriate position, tighten the locking screw 21 so that its end abuts against the adjusting plate 6 to complete the position fixation and adapt to the usage needs of different people.

[0052] When it is necessary to replace the earplug 8, pinch the winding part 13 at the end of the paddle 12, and use the support block 14 as a fulcrum to bring the ends of the two paddles 12 closer to each other. The auxiliary spring piece 10 is deformed by the connecting piece 11. The vertical groove 20 at the connection between the auxiliary spring piece 10 and the main spring piece 7 reduces the connection area and reduces the force required for deformation. After the auxiliary spring piece 10 is deformed, it drives the L-shaped piece 15 to disengage from the annular groove 16. The earplug 8 along with the rubber seat 17 can then be removed from the positioning ring 18. After removal, insert the rubber seat 17 on the new earplug 8 into the positioning ring 18, release the paddle 12, and the auxiliary spring piece 10 will reset under its own elastic force, thereby driving the L-shaped piece 15 to be inserted into the annular groove 16 again, thus fixing the new earplug 8 and completing the replacement of the earplug 8.

[0053] The main spring piece 7 is thicker than the auxiliary spring piece 10, and the auxiliary spring piece 10 is arc-shaped. This ensures the support stability of the main spring piece 7 and reduces the force that drives the deformation of the auxiliary spring piece 10, thereby improving the convenience of replacing the earplug 8. The hollow groove 19 on the side of the main spring piece 7 corresponding to the positioning ring 18 can be used to observe whether the rubber seat 17 and the main spring piece 7 fit together when installing the rubber seat 17, providing a positioning reference for the L-shaped piece 15 to be inserted into the annular groove 16.

[0054] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A hearing aid based on bone conduction, comprising a headband (2) and bone conduction microphones (1) mounted at both ends of the headband (2), characterized in that, Also includes: The noise reduction mechanism (3) includes a connecting strip (4) fixed to the top of the bone conduction microphone (1), a square cover (5) fixed to the end of the connecting strip (4), an adjusting plate (6) slidably connected inside the square cover (5), a locking screw (21) threadedly connected to the side of the square cover (5), the end of the locking screw (21) abutting against the side of the adjusting plate (6), a main spring plate (7) fixed to the bottom of the adjusting plate (6), a positioning component (9) provided on the side of the main spring plate (7), a rubber seat (17) provided inside the positioning component (9), and an earplug (8) fixed on the side of the rubber seat (17). When worn, the bone conduction microphone (1) is attached to the skull of the wearer, and the earplug (8) is inserted into the ear canal of the wearer.

2. The hearing aid based on bone conduction according to claim 1, characterized in that, The positioning component (9) includes a positioning ring (18) fixed on the side of the main spring (7), a rubber seat (17) inserted into the positioning ring (18), and auxiliary springs (10) integrally formed on opposite sides of the main spring (7). The auxiliary springs (10) are separated from the positioning ring (18). An L-shaped piece (15) is fixed on one side of the auxiliary spring (10) corresponding to the positioning ring (18). An annular groove (16) is provided on the circumferential surface of the rubber seat (17). A notch (22) is provided at the location of the positioning ring (18) corresponding to the L-shaped piece (15). The L-shaped piece (15) passes through the notch (22) and is stuck in the annular groove (16).

3. The hearing aid based on bone conduction according to claim 2, characterized in that, A vertical groove (20) is provided at the connection between the auxiliary spring (10) and the main spring (7).

4. The hearing aid based on bone conduction according to claim 2, characterized in that, The auxiliary spring (10) is fixed with a connecting piece (11) on the side away from the positioning ring (18). A lever (12) is fixed on the side of the connecting piece (11). The lever (12) is arc-shaped, and the end of the lever (12) away from the connecting piece (11) bends away from the main spring (7). A support block (14) is fixed on the side of the main spring (7). The lever (12) fits against the support block (14).

5. The hearing aid based on bone conduction according to claim 4, characterized in that, The side of the paddle (12) away from the connecting piece (11) is wound with a winding portion (13).

6. The hearing aid based on bone conduction according to claim 2, characterized in that, The thickness of the main spring sheet (7) is greater than the thickness of the auxiliary spring sheet (10).

7. The hearing aid based on bone conduction according to claim 2, characterized in that, The main spring piece (7) has a hollowed-out groove (19) on its side corresponding to the position of the positioning ring (18).

8. The hearing aid based on bone conduction according to claim 2, characterized in that, The auxiliary spring (10) is arc-shaped, and its center is located on the central axis of the positioning ring (18).

9. The hearing aid based on bone conduction according to claim 1, characterized in that, A round strip is fixed to the side of the square cover (5), and the round strip is fixed to the connecting strip (4).

10. The hearing aid based on bone conduction according to claim 1, characterized in that, The adjustment plate (6) has multiple long grooves on its side near the top.

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