Acoustic device ear cap and noise reduction earplug

Abstract

The utility model relates to an acoustic device ear cap and a noise reduction earplug, belonging to the earplug technology field, the acoustic device ear cap comprises a cap body and a support member, the cap body is made of a flexible material and is internally provided with a first cavity, one end of the cap body close to the ear canal of a user is provided with a through hole connected with the first cavity, the end, close to the ear canal of the user, of the cap body is provided with an arc-shaped transition part connected with the end, away from the ear canal of the user, of the cap body; and the supporting piece is in contact with the supporting convex part, a second cavity is formed between the supporting piece and the supporting convex part, and when the supporting convex part is extruded by external force, air in the second cavity can be extruded and discharged.

Description

TECHNICAL FIELD

[0001] The utility model relates to earplug technical field more specifically, relate to acoustic device ear cap and noise reduction earplug. BACKGROUND

[0002] In daily life, work or commuting, people are often exposed to high intensity or persistent noise environment (such as traffic, mechanical equipment, noisy crowd, etc.), long-term contact may cause hearing fatigue and even hearing damage. Earplugs isolate external noise by physical means, providing a quiet environment for users, reducing noise from the source, for people susceptible to noise, such as light sleepers or people living in noisy environments, earplugs can effectively block environmental noise, help sleep, prolong deep sleep time, and thus improve overall sleep quality.

[0003] In order to reduce the influence of noise on life, noise reduction earplug becomes the most common choice, however, the market noise reduction earplug adopts standard circle, and the difference between different user ear canal structure is poor, so that the user wears not comfortable enough. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that the market noise reduction earplug adopts standard circle, and the difference between different user ear canal structure is poor, so that the user wears not comfortable enough, in view of the above defects of prior art, provide a kind of acoustic device ear cap.

[0005] The utility model solves the technical problem and adopts the technical scheme that:

[0006] An acoustic device ear cap is constructed, comprising:

[0007] The cap body is made of flexible material and has a first cavity inside. A through hole connected to the first cavity is formed in one end of the cap body near the user's ear canal. The side end of the cap body near the user's ear canal is connected to an arc-shaped transition part.

[0008] Optionally, a support protrusion is provided at one end of the cap body away from the user's ear canal.

[0009] A support member is included, which is in contact with the support protrusion and forms a second cavity between the support member and the support protrusion. When the support protrusion is pressed by external force, the air in the second cavity will be pressed out.

[0010] A leak-proof contact part is provided at one end of the support protrusion away from the cap body to increase the contact area between the support member and the support protrusion.

[0011] Optionally, the included angle between the leak-proof contact part and the support protrusion is 110-160 degrees to form an outwardly expanding structure.

[0012] Optionally, the ear cap comprises at least a flexible supporting outer layer and a sound insulation inner layer arranged in a stack, and the supporting protrusion is made of the same material as the flexible supporting outer layer and is integrally formed.

[0013] Optionally, a sealing buffer layer is arranged between the supporting protrusion and the flexible supporting outer layer, which is used to fill the gap, enhance the structural integrity, and realize effective air tightness by fitting the contact interface to prevent sound wave leakage.

[0014] Optionally, a supporting protrusion is arranged at the end of the cap body away from the user's ear canal, and a plurality of elastic supporting parts are arranged on the inner wall of the supporting protrusion to contact the supporting part to play a supporting role.

[0015] Optionally, the through hole is provided with a clamping seat at the end close to the first cavity, and the clamping seat is clamped with a dustproof part or a noise reduction part.

[0016] Optionally, the clamping seat comprises a hollow cylindrical mounting part protruding from the inside of the first cavity, and a clamping protrusion is arranged on the outer circumferential side of the hollow cylindrical mounting part, and the circumferential side of the dustproof part or the noise reduction part is provided with a clamping groove matched with the clamping protrusion.

[0017] A noise reduction earplug is constructed, comprising an acoustic device ear cap, a noise reduction device, and a wearing part, the wearing part is arranged at the end of the noise reduction device away from the cap body, and the first cavity is provided with a mounting hole for connecting with the noise reduction device at the end away from the through hole.

[0018] Optionally, the supporting part is in the shape of a hollow circular table and is integrally formed with the cap body or the noise reduction device.

[0019] The beneficial effects of the present application are as follows:

[0020] The cap body is made of flexible material, and a first cavity for supporting is arranged inside, which can deform moderately due to the flexible structure when the ear cap is inserted into the ear canal, thereby providing supporting effect and avoiding the collapse of the cap body structure, and also playing the role of buffering and stabilizing ear pressure, improving the comfort during wearing, and the arc-shaped transition part is formed between the end close to the ear canal and the side end of the cap body, which forms a smooth curve at the shape transition part, used to reduce the local compression of the ear canal wall when the ear cap is inserted into the ear canal, and improve the fit and comfort during wearing. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the present application will be further described below with reference to the drawings and embodiments, and the drawings described in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the premise of not paying creative labor:

[0022] Figure 1 is the overall shaft schematic diagram in the embodiments of the present application.

[0023] Figure 2 is the cross-sectional schematic diagram of the present application along the A-A line in the embodiment of the present application. Figure 1

[0024] Figure 3 is the front view schematic diagram in the embodiments of the present application.

[0025] Figure 4 is the cross-sectional schematic diagram of the present application along the B-B line in the embodiment of the present application. Figure 3

[0026] Figure 5 is the overall explosion schematic diagram in the embodiments of the present application.

[0027] The reference signs are:

[0028] 100, cap body; 110, through hole; 120, support convex part; 121, leakage prevention contact part; 130, clamping seat; 131, hollow columnar mounting part; 132, clamping convex part; 140, noise reduction piece; 141, clamping groove; 150, assembly hole;

[0029] 200, support piece;

[0030] 300, arc transition part;

[0031] 400, noise reduction device;

[0032] 500, wearing part;

[0033] a, first cavity;

[0034] b, second cavity;

[0035] c, included angle.DETAILED DESCRIPTION

[0036] ​​In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely in combination with the drawings in the utility model below, obviously, the described embodiments are part of the embodiments of the utility model, instead of all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without making creative labor belong to the protection scope of the utility model.

[0037] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For the ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0038] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the characteristics of different embodiments or examples without contradiction.

[0040] Embodiment one: the utility model embodiment such as Figures 1-5As shown in the figure, it relates to an acoustic device ear cap, comprising a cap body 100 and a support piece 200, the cap body 100 is made of flexible material and is internally provided with a first cavity a, the cap body 100 is provided with a through hole 110 connected with the first cavity a at one end close to the user's ear canal, the transition part between the end close to the user's ear canal and the side end connected therewith of the cap body 100 is arc-shaped, and the cap body 100 is provided with a supporting protrusion 120 at the end away from the user's ear canal; the support piece 200 is in contact with the supporting protrusion 120, and the second cavity b is formed between the support piece 200 and the supporting protrusion 120, when the supporting protrusion 120 is extruded by external force, the air in the second cavity b will be extruded and discharged, further, the cap body 100 is made of flexible material and is internally provided with a first cavity a for supporting, which can deform moderately due to the flexible structure when the ear cap is inserted into the ear canal, thereby providing supporting effect, avoiding the structure collapse of the cap body 100, and at the same time playing the role of buffering and stabilizing ear pressure, and improving the comfort during wearing, the cap body 100 is provided with a through hole 110 connected with the first cavity a at one end close to the user's ear canal, so as to ensure the realization of sound entering and avoid the stimulation of the fully closed structure to the user's eardrum, the arc-shaped transition part 300 is formed between the end close to the ear canal and the side end of the cap body 100, which forms a smooth curve at the shape transition part, used for reducing the local compression of the ear canal wall when the ear cap is inserted into the ear canal, and improving the fit and comfort during wearing. The cap body 100 is provided with an outwardly protruding supporting protrusion 120 at the end away from the user's ear canal, which is a connecting structure between the cap body 100 and the support piece 200, has certain structural rigidity and elastic recovery ability, can deform under external force, and forms a stable matching structure with the support piece 200, thereby providing deformation support and buffering function during wearing, thereby enhancing the wearing stability of the structure of the ear cap.

[0041] In order to increase the stability of the ear cap, the supporting protrusion 120 is provided with a leakage prevention contact part 121 at the end away from the cap body 100 for increasing the contact area with the support piece 200, further, the leakage prevention contact part 121 can form a larger range of fit with the surface of the support piece 200, thereby improving the sealing effect between the structures, preventing air leakage when the second cavity b is not extruded, enhancing the air tightness and noise reduction performance of the whole ear cap, further, the leakage prevention contact part 121 can be in the form of an annular expansion structure or an inclined surface structure, and forms a continuous fit area with the support piece 200 in the matching state, when the ear cap is extruded by external force during wearing, the volume of the second cavity b changes due to structural deformation, and the air in the second cavity b will be discharged from the leakage prevention contact part, thereby forming a buffering effect, reducing the impact of the instantaneous change of the ear canal pressure on the eardrum, and improving the comfort and safety during wearing.

[0042] In the embodiment, the included angle c between the leakage prevention contact part 121 and the supporting convex part 120 is 110-160 degrees to form an outwardly expanding structure. In some embodiments, the included angle c between the leakage prevention contact part 121 and the supporting convex part 120 can also be 120 degrees, 130 degrees, 140 degrees, etc.

[0043] Referring to Figures 1-5 In the embodiment, the ear cap comprises a flexible supporting outer layer and a sound insulation inner layer arranged in layers. The supporting convex part 120 is made of the same material as the flexible supporting outer layer and is integrally formed. The flexible supporting outer layer is used to provide structural strength and elastic support performance of the ear cap as a whole. The sound insulation inner layer is made of a material with excellent sound wave blocking performance and is used to enhance the passive noise reduction effect of the ear cap. Preferably, the supporting convex part 120 and the flexible supporting outer layer are made of the same material and are integrally formed by an integral forming process to ensure consistency in mechanical properties and deformation response, improve the overall strength and stability of the ear cap, and avoid problems such as delamination or poor fit caused by material differences. The material of the flexible supporting outer layer can be silicone, thermoplastic polyurethane, etc. The material of the sound insulation inner layer can be foamed polyurethane, rubber, etc.

[0044] In the embodiment, a sealing buffer layer is arranged between the supporting convex part 120 and the flexible supporting outer layer. The sealing buffer layer is used to fill gaps, enhance structural integrity, and achieve effective sealing by fitting the contact interface, thereby enhancing the overall structural integrity and stability of the ear cap.

[0045] In the embodiment, the cap body 100 is in the shape of a circular truncated cone or a nipple. Further, the cap body 100 is designed in the shape of a circular truncated cone or a nipple to facilitate smooth insertion of the ear cap into the user's ear canal and achieve flexible fitting with the ear canal wall during wearing through the gradual structure. The nipple-shaped structure further forms a smooth transition head part based on the circular truncated cone, which has stronger deformation adaptability.

[0046] Referring to Figures 1-5 In the embodiment, the through hole 110 is provided with a clamping seat 130 at one end close to the first chamber. A dustproof part or a noise reduction part 140 is clamped on the clamping seat 130. Further, the dustproof part is used to block foreign matter, dust, or impurities from entering the inside of the first cavity a, thereby protecting the cleanliness and durability of the internal structure. The noise reduction part 140 can be a physical sound absorption component or a filtering material, which is used to further improve the noise reduction performance of the ear cap.

[0047] Specifically, the clamping seat 130 includes a hollow cylindrical mounting portion 131 protruding from the inside of the first cavity, and a clamping protrusion 132 is arranged on the outer circumferential side of the hollow cylindrical mounting portion 131. The circumferential side of the dustproof or noise reduction piece 140 is provided with a clamping groove 141 matched with the clamping protrusion 132. During installation, the clamping groove 141 and the clamping protrusion 132 are clamped and matched to form a reliable positioning connection. Further, the clamping structure can provide moderate assembly resistance and anti-falling ability through the matching of the clamping protrusion 132 and the clamping groove 141, preventing the dustproof or noise reduction piece 140 from accidentally falling off due to vibration during wearing, moving or collision, and improving the practicality and durability of the overall structure.

[0048] Referring to Figures 1-5 In the embodiment, the first cavity is provided with an assembly hole 150 at one end away from the through hole 110 for connecting with the noise reduction device 400. The noise reduction device 400 can be inserted through the assembly hole 150 by matching with the insertion column, and the positioning installation is realized through the insertion and matching of the insertion column and the assembly hole 150, so that the noise reduction device 400 can be stably connected with the ear cap. Further, the support piece 200 is in a hollow circular table shape and is integrally formed with the cap body 100 or the noise reduction device 400. The hollow circular table shape of the support piece 200 has good axial elasticity and volume buffering capacity, and can adapt to the change of the ear canal during wearing or compression. At the same time, the support piece 200 can be made in an integral molding manner with the cap body 100 or the noise reduction device 400, so that the structure connection is more compact, the problems of poor sealing or looseness caused by assembly error are avoided, the overall consistency and service life of the product are improved, and the wearing part 500 is also included. The wearing part 500 is arranged at one end of the noise reduction device 400 away from the cap body, wherein the wearing part 500 is the part of the earplug directly contacting the user's auricle, can adapt to the auricle shape of different users, realize stable fitting, prevent the earplug from loosening or falling off, and the noise reduction device 400 is used for processing environmental noise.

[0049] Embodiment two: The difference from embodiment one is that the cap body 100 is provided with a support protrusion 120 at one end away from the user's ear canal. A plurality of elastic support portions (not shown in the figure) for supporting are arranged on the inner wall of the support protrusion 120 and in contact with the support piece 200. In this embodiment, the body of the support protrusion does not contact the support piece. The elastic support portions provide multi-point flexible support, improve the overall stability of the device, and the elastic structure has good buffering effect, can reduce local pressure, improve the comfort of the user during long-term wearing, and reduce the fatigue of the ear.

[0050] It should be understood that modifications or variations can be made according to the above description by those of ordinary skill in the art, and all such modifications and variations are intended to be within the scope of the present application as defined by the claims appended hereto.

Claims

1. An acoustic device ear cap, characterized by, The ear cap comprises a cap body (100) made of flexible material and provided with a first cavity (a) inside, a through hole (110) connected with the first cavity being formed at one end of the cap body (100) close to the ear canal of a user, and a transition part with arc shape being formed at the side end of the cap body (100) close to the ear canal of the user. The cap body (100) is provided with a supporting protrusion (120) at the end away from the ear canal of the user.

2. An acoustic device earcap according to claim 1, wherein, The supporting member (200) is in contact with the supporting protrusion (120) and a second cavity (b) is formed between the supporting member (200) and the supporting protrusion (120), and when the supporting protrusion (120) is pressed by external force, the air in the second cavity (b) will be pressed and discharged. The supporting protrusion (120) is provided with a leakage prevention contact part (121) at the end away from the cap body (100) for increasing the contact area with the supporting member (200). The included angle (c) between the leakage prevention contact part (121) and the supporting protrusion (120) is 110-160 degrees to form an outwardly expanding structure.

3. An acoustic device earcap according to claim 2, wherein, The ear cap at least comprises a flexible supporting outer layer and a sound insulation inner layer arranged in layers, the supporting protrusion (120) is made of the same material as the flexible supporting outer layer and is integrally formed.

4. An acoustic device earcap according to claim 3, wherein, A sealing buffer layer is arranged between the supporting protrusion (120) and the flexible supporting outer layer, the sealing buffer layer is used to fill the gap, enhance the structural integrity, and realize effective air tightness by fitting the contact interface to prevent sound wave leakage.

5. An acoustic device earcap according to claim 4, wherein, The cap body (100) is provided with a supporting protrusion (120) at the end away from the ear canal of the user, and a plurality of elastic supporting parts are arranged on the inner wall of the supporting protrusion (120) to play a supporting role in contact with the supporting member (200).

6. An acoustic device earcap according to claim 2, wherein, The through hole (110) is provided with a clamping seat (130) at the end close to the first cavity, and a dustproof member or a noise reduction member (140) is clamped on the clamping seat (130).

7. An acoustic device earcap according to claim 1, wherein, The clamping seat (130) comprises a hollow columnar mounting part (131) protruding from the inside of the first cavity, a clamping protrusion (132) is arranged on the outer circumferential side of the hollow columnar mounting part (131), and a clamping groove (141) matched with the clamping protrusion (132) is arranged on the circumferential side of the dustproof member or the noise reduction member (140).

8. An acoustic device earcap according to claim 7, wherein, The acoustic device ear cap comprises a noise reduction device (400) and a wearing part (500), the wearing part (500) is arranged at the end of the noise reduction device (400) away from the cap body, and the first cavity is provided with a mounting hole (150) for connecting with the noise reduction device (400) at the end away from the through hole (110).

9. A noise reducing earplug, characterized in that The supporting member (200) is in the form of a hollow circular table and is integrally formed with the cap body (100) or the noise reduction device (400).

10. The noise reducing earplug of claim 9, wherein, ​

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