Earphone with earmuffs

Abstract

The utility model discloses an earphone with an earcap, a housing of the earphone is provided with a housing sound outlet, and the earcap is provided with an earcap sound outlet communicated with the housing sound outlet; the earmuff comprises a cylindrical inner layer and an outer layer used for being attached to the ear canal, and the cross section of the inner layer is oval. A connecting column is fixed at the in-ear end of the shell, and the cross section of the connecting column is elliptical; the connecting column is hollow, and at least two first grooves are formed in the outer wall face of the connecting column in the perimeter direction. A protrusion higher than the bottom face of each first groove is arranged between every two adjacent first grooves. The inner wall face of the inner layer is provided with second grooves used for being connected with the protrusions in a clamped mode in a one-to-one correspondence mode. When the second grooves are connected with the corresponding protrusions in a clamped mode, the included angle between the long axis direction of the ellipse of the inner layer and the long axis direction of the ellipse of the connecting column is smaller than or equal to a preset angle, and the inner wall of the inner layer is attached to the first grooves. According to the utility model, the connecting gap between the elliptical earplug and the elliptical connecting column can be reduced, and the situation that the earcap falls off when not detached is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to an earphone with an earmuff. Background Art

[0002] Since the ear canal is close to an ellipse in cross section, with the development of earphones and the personalized needs of users, earphones with elliptical shell sound outlets and earmuffs with elliptical earmuff sound outlets have begun to appear on the market. During assembly, the elliptical directions of the earmuff sound outlet and the shell sound outlet are aligned, so that the earmuff fits the shell perfectly. However, when worn, the earmuff is prone to rotate in the axial direction, resulting in a misaligned gap between the earmuff and the shell, which makes it easy for the earmuff to slip out. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an earphone with an earmuff, which can reduce the installation gap between the elliptical earplug and the elliptical connecting column, improve the wrapping stability of the earmuff, and reduce the situation where the earmuff falls off when it is not disassembled.

[0004] In order to solve the above technical problems, the utility model discloses an earphone with an earmuff, wherein a shell body of the earphone is provided with a shell sound outlet, and the earmuff is provided with an earmuff sound outlet connected with the shell sound outlet; the earmuff comprises a cylindrical inner layer and an outer layer for fitting the ear canal, and the cross section of the inner layer is elliptical; a connecting column is fixed on the ear inlet end of the shell, and the cross section of the connecting column is elliptical;

[0005] The connecting column is hollow, and its outer wall surface is provided with at least two first grooves along the circumference direction; wherein a protrusion higher than the bottom surface of the first groove is formed between two adjacent first grooves;

[0006] The inner wall surface of the inner layer is provided with a second groove for engaging with the protrusions in a one-to-one correspondence;

[0007] When the second groove is engaged with the corresponding protrusion, the angle between the major axis direction of the inner layer's ellipse and the major axis direction of the connecting column's ellipse is less than or equal to a preset angle, and the inner wall of the inner layer fits the first groove.

[0008] As an optional implementation, the connecting post is hollow, and the sound outlet of the shell is arranged at the ear inlet end of the connecting post.

[0009] As another optional embodiment, the inner wall surface of the inner layer further includes a third groove; the third groove is used to clamp the protruding portion between the side wall of the first groove close to the connecting column and the port of the connecting column.

[0010] As another optional implementation, the earmuff sound outlet is arranged on the bottom surface of the third groove.

[0011] As another optional implementation, the shell sound outlet and / or the earmuff sound outlet is a panel with a plurality of through holes on the surface.

[0012] As another optional implementation, the shell includes a front shell and a rear shell, and the ear inlet end of the shell is arranged on the front shell.

[0013] As another optional implementation, a first deformation space is provided between the inner layer and the outer layer.

[0014] As another optional implementation, a pull ring is provided on the edge of the earmuff.

[0015] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0016] In the embodiment of the utility model, at least two first grooves are opened on the connecting column of the shell, so that at least two protrusions higher than the bottom of the grooves and with a certain width are left on the connecting column, and the inner layer of the earmuff is provided with a second groove that is engaged with the protrusions. By ensuring that the angle between the long axis direction of the ellipse of the inner layer and the long axis direction of the ellipse of the connecting column is small, the engaging and installing of the two is more accurate and the installing gap is smaller; at the same time, when the second groove and the protrusion are engaged, the inner wall of the inner layer fits the bottom of the first groove, so that the inner wall of the inner layer is hindered by the wall step of the first groove in the removal direction of the earmuff, thereby further improving the wrapping stability of the earmuff and reducing the possibility of the earmuff falling off when not being disassembled. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a structural schematic diagram of a housing and earmuff of an earphone disclosed in an embodiment of the utility model;

[0019] Figure 2 It is a structural schematic diagram of a housing of an earphone disclosed in an embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of an earmuff of an earphone disclosed in an embodiment of the utility model;

[0021] Figure 4The utility model is a schematic diagram of the cross-sectional structure of an earmuff of an earphone disclosed in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 The embodiment of the utility model discloses an earphone with an earmuff 2, wherein the shell 1 of the earphone is provided with a shell sound outlet 14, and the earmuff 2 is provided with an earmuff sound outlet 25 connected with the shell sound outlet 14; the earmuff 2 comprises a cylindrical inner layer 21 and an outer layer 22 for fitting the ear canal, and the cross section of the inner layer 21 is elliptical; a connecting column 11 is fixed on the ear inlet end of the shell 1, and the cross section of the connecting column 11 is elliptical; wherein:

[0024] The connecting column 11 is hollow, and its outer wall surface is provided with at least two first grooves 12 along the circumference direction; wherein, between two adjacent first grooves 12 is a protrusion 13 higher than the bottom surface of the first groove 12;

[0025] The inner wall surface of the inner layer 21 is provided with a second groove 23 for engaging with the protrusions 13 in a one-to-one correspondence;

[0026] When the second groove 23 is engaged with the corresponding protrusion 13 , the angle between the major axis direction of the ellipse of the inner layer 21 and the major axis direction of the ellipse of the connecting column 11 is less than or equal to a preset angle, and the inner wall of the inner layer 21 fits the first groove 12 .

[0027] When the outer wall surface of the connecting column 11 has two grooves along the circumference direction, since there is a protrusion 13 between adjacent grooves, there will be two protrusions 13 in total (it is OK not to open the two grooves when processing the grooves), that is, for example, the order of groove a-protrusion a-groove b-protrusion b-groove a is one circle, and the same applies to other numbers of grooves. The width of the protrusion 13 is the distance between the wall surfaces of the two adjacent grooves corresponding to the protrusion 13, and the width of the protrusion 13 in this embodiment is greater than 0.

[0028] The preset angle can be 0-5 degrees and can be set according to the actual application situation; when the position of the groove and the protrusion 13 is selected more accurately, the angle between the long axis direction of the ellipse of the inner layer 21 and the long axis direction of the ellipse of the connecting column 11 is smaller, which means that the installation misalignment is less, and thus the gap is also smaller.

[0029] In the embodiment of the utility model, at least two first grooves 12 are opened on the connecting column 11 of the shell 1, so that at least two protrusions 13 higher than the bottom of the grooves and with a certain width are left on the connecting column 11, and the inner layer 21 of the earmuff 2 is provided with a second groove 23 engaged with the protrusion 13, and the angle between the long axis direction of the ellipse of the inner layer 21 and the long axis direction of the ellipse of the connecting column 11 is ensured to be small, so that the engaging and installing of the two is more accurate and the installing gap is smaller; at the same time, when the second groove 23 and the protrusion 13 are engaged, the inner wall of the inner layer 21 fits the bottom of the first groove 12, so that the inner wall of the inner layer 21 is hindered by the wall step of the first groove 12 in the removal direction of the earmuff 2, thereby further improving the wrapping stability of the earmuff 2 and reducing the possibility of the earmuff 2 falling off when not being disassembled.

[0030] In an optional embodiment, the connecting column 11 is hollow, and the shell sound outlet 14 is arranged at the ear inlet end of the connecting column 11 .

[0031] In another optional embodiment, the inner wall surface of the inner layer 21 further includes a third groove 24; the third groove 24 is used to snap-fit ​​the protrusion between the side wall of the first groove 12 close to the connecting column 11 and the end of the connecting column 11. This embodiment adds another snap connection, which can further improve the firmness of the earmuff 2.

[0032] In yet another optional embodiment, the earmuff sound outlet 25 is disposed on the bottom surface of the third groove 24 .

[0033] In yet another optional embodiment, the shell sound outlet 14 and / or the earmuff sound outlet 25 is a panel with a plurality of through holes on the surface.

[0034] In yet another optional embodiment, the shell 1 includes a front shell and a rear shell, and the ear-in end of the shell 1 is arranged on the front shell.

[0035] In yet another optional embodiment, a first deformation space is provided between the inner layer 21 and the outer layer 22 .

[0036] In yet another optional embodiment, a pull ring (not shown in the drawings) is provided at the edge of the earmuff 2 to facilitate the user to remove the earmuff 2. The pull ring may be made of elastic material.

[0037] The contents disclosed in the embodiments of the present invention only disclose the preferred embodiments of the present invention, which are only used to illustrate the technical solutions of the present invention, rather than to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it should be understood by those skilled in the art that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An earphone with an earmuff, wherein the earphone shell is provided with a shell sound outlet, and the earmuff is provided with an earmuff sound outlet connected to the shell sound outlet; the earmuff comprises a cylindrical inner layer and an outer layer for fitting the ear canal, and the cross section of the inner layer is elliptical; a connecting column is fixed on the ear inlet end of the shell, and the cross section of the connecting column is elliptical; the characteristics are: The connecting column is hollow, and its outer wall surface is provided with at least two first grooves along the circumference direction; wherein a protrusion higher than the bottom surface of the first groove is formed between two adjacent first grooves; The inner wall surface of the inner layer is provided with a second groove for engaging with the protrusions in a one-to-one correspondence; When the second groove is engaged with the corresponding protrusion, the angle between the major axis direction of the inner layer's ellipse and the major axis direction of the connecting column's ellipse is less than or equal to a preset angle, and the inner wall of the inner layer fits the first groove.

2. The earphone according to claim 1, characterized in that The connecting column is hollow, and the sound outlet of the shell is arranged at the ear-entry end of the connecting column.

3. The earphone according to claim 1, characterized in that The inner wall surface of the inner layer also includes a third groove; the third groove is used to clamp the protrusion between the side wall of the first groove close to the connecting column and the end of the connecting column.

4. The earphone according to claim 3, characterized in that: The earmuff sound outlet is arranged on the bottom surface of the third groove.

5. The earphone according to claim 1, characterized in that The shell sound outlet and / or the earmuff sound outlet is a panel with a plurality of through holes on the surface.

6. The earphone according to claim 1, characterized in that The shell comprises a front shell and a rear shell, and the ear-in end of the shell is arranged on the front shell.

7. The earphone according to claim 1, characterized in that A first deformation space is provided between the inner layer and the outer layer.

8. The earphone according to claim 1, characterized in that A pull ring is provided on the edge of the earmuff.

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