Earphone

Abstract

The earphone comprises an ear cap assembly structure and an ear cap, the ear cap comprises an earplug portion and a connecting portion, the connecting portion is tubular, the earplug portion wraps the outer side of the connecting portion, the hardness of the earplug portion is smaller than that of the connecting portion, and the inner side wall of the connecting portion is provided with a clamping groove to be connected with the ear cap assembly structure in a buckled mode. Therefore, the earplug part and the connecting part which are different in hardness are arranged, so that the ear cap can be simply assembled and is not easy to fall off.

Description

Technical Field

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

[0002] When assembling ear caps of current headphones on the market, the silicone ear caps are usually assembled by interfering with the plastic shell, which is troublesome to assemble and can easily cause the ear caps to fall off after long-term use. Utility Model Content

[0003] In view of this, an object of the present invention is to provide an earphone, which makes the ear cap easy to assemble and not easy to fall off by providing an earplug part and a connecting part with different hardness.

[0004] An embodiment of the present invention provides an earphone, which includes: an ear cap assembly structure; and an ear cap, the ear cap including an ear plug portion and a connecting portion, the connecting portion being configured in a tubular shape, the ear plug portion being covered on the outside of the connecting portion, the hardness of the ear plug portion being smaller than that of the connecting portion, and a snap-fit ​​groove being provided on the inner side wall of the connecting portion for snapping and connecting with the ear cap assembly structure.

[0005] In some embodiments, the ear cap assembly structure includes a sound guide tube and an elastic bracket, the elastic bracket is disposed in the sound guide tube and includes a spring buckle, and the spring buckle extends out of the sound guide tube.

[0006] In some embodiments, the elastic bracket further includes an elastic arm connected to the spring buckle and bent in a vertical direction.

[0007] In some embodiments, the elastic bracket further includes a base, which is connected to the elastic arm and abuts against the bottom of the sound guide tube.

[0008] In some embodiments, the elastic arm includes: a bearing portion extending from the spring buckle in a horizontal direction; and a supporting portion extending from the bearing portion in a vertical direction and connected to the base.

[0009] In some embodiments, a guide surface is provided on the inner side wall of the bottom of the connecting portion, and the guide surface is inclined from top to bottom toward the outside; a mating surface is provided on the top of the spring buckle, and the mating surface is inclined from top to bottom toward the outside.

[0010] In some embodiments, the bottom of the spring buckle is provided with a curved surface.

[0011] In some embodiments, the ear cap assembly structure further includes a shell having an opening provided on the shell; the sound guide tube includes a main body and an outward expansion portion, the outward expansion portion extending outward from the lower end of the main body, the outward expansion portion being located inside the shell and abutting against the inner wall of the shell, and the main body extending out of the shell through the opening; the bottom of the ear cap is disposed between the shell and the sound guide tube, and abutting against the shell and the outward expansion portion, respectively.

[0012] In some embodiments, the inner side wall of the main body protrudes inward to form a first protrusion, and the first protrusion matches the elastic bracket.

[0013] In some embodiments, a buckle hole is provided on the side wall of the sound guide tube; the spring buckle extends out of the sound guide tube through the buckle hole.

[0014] In some embodiments, the lower wall of the engaging groove is arranged in a horizontal direction; and the upper wall of the engaging groove is inclined toward the outside from top to bottom.

[0015] The present invention provides an earphone comprising an ear cap assembly structure and an ear cap. The ear cap comprises an ear plug portion and a connecting portion. The connecting portion is tubular and the ear plug portion is wrapped around the connecting portion. The ear plug portion has a lower hardness than the connecting portion. The connecting portion has an inner sidewall provided with a snap-fitting groove for fastening with the ear cap assembly structure. Thus, by providing the ear plug portion and the connecting portion with different hardnesses, the ear cap can be easily assembled and is not easily removed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other objects, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 This is a schematic structural diagram of an earphone provided by an embodiment of the present utility model;

[0018] Figure 2 This is an exploded schematic diagram of an earphone provided by an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional schematic diagram of an earphone before assembly provided by an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional schematic diagram of an assembled earphone provided by an embodiment of the present utility model;

[0021] Figure 5 This is a structural diagram of the connecting portion provided by an embodiment of the present utility model;

[0022] Figure 6This is a structural diagram of the connecting portion provided by an embodiment of the present utility model from another perspective;

[0023] Figure 7 This is a schematic structural diagram of the earplug portion provided by an embodiment of the present utility model;

[0024] Figure 8 This is a structural diagram of the earplug portion provided by an embodiment of the present invention from another perspective;

[0025] Figure 9 This is a schematic structural diagram of an elastic bracket provided by an embodiment of the present utility model;

[0026] Figure 10 This is a schematic structural diagram of a housing provided by an embodiment of the present utility model;

[0027] Figure 11 This is a structural diagram of a sound guide tube provided by an embodiment of the utility model;

[0028] Figure 12 This is a structural schematic diagram of a sound guide tube provided by an embodiment of the present utility model from another perspective;

[0029] Figure 13 This is a schematic structural diagram of another elastic bracket provided by an embodiment of the present utility model;

[0030] Figure 14 This is a structural diagram of another elastic bracket provided by an embodiment of the present utility model;

[0031] Figure 15 This is a schematic structural diagram of another sound guide tube provided by an embodiment of the present utility model;

[0032] Figure 16 This is a structural schematic diagram of another sound guide tube provided by an embodiment of the present utility model from another perspective;

[0033] Figure 17 This is a structural diagram of another elastic bracket provided by an embodiment of the present utility model;

[0034] Figure 18 This is a structural diagram of another sound guide tube provided by an embodiment of the present utility model;

[0035] Figure 19 This is a structural schematic diagram of another sound guide tube provided by an embodiment of the present utility model from another perspective.

[0036] Description of reference numerals:

[0037] 1-ear cap assembly structure; 11-sound guide tube; 111-main body; 112-outward expansion part; 113-buckle hole; 114-first protrusion; 115-second protrusion; 12-elastic bracket; 121-spring buckle; 1211-matching surface; 1212-arc surface; 122-elastic arm; 1221-bearing part; 1222-supporting part; 1223-first bending part; 1224-second bending part; 1225-third bending part; 123-base; 13-housing; 131-opening; 2-ear cap; 21-earplug part; 211-conduit; 212-cap body; 213-spacer; 2131-sound outlet hole; 22-connecting part; 221-buckle groove; 2211-lower wall; 2212-upper wall; 222-guide surface. DETAILED DESCRIPTION

[0038] The present application is described below based on the following embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, certain specific details are described in detail. Those skilled in the art can fully understand the present application without the description of these details. To avoid obscuring the essence of the present application, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0039] Furthermore, persons of ordinary skill in the art will appreciate that the figures provided herein are for illustration purposes only and are not necessarily drawn to scale.

[0040] Unless otherwise specified or limited, the terms "mounted," "connected," "connect," "fixed," and the like should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0041] For ease of explanation, spatially relative terms such as "in," "out," "under," "below," "lower," "above," "upper," and the like are used herein to describe the relationship of one element or feature illustrated in the figures to another element or feature. It will be understood that spatially relative terms may be intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, an element described as being "under" or "beneath" another element or feature would then be positioned "above" the other element or feature. Thus, the example term "under" can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0042] Unless the context clearly requires otherwise, words like “include”, “comprising” and the like throughout this application should be interpreted as including rather than exclusive or exhaustive; that is, as meaning “including but not limited to”.

[0043] In the description of this application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance. In addition, in the description of this application, unless otherwise specified, "plurality" means two or more.

[0044] Figure 1 Schematic diagram of the structure of the earphone provided by the embodiment of the present invention. Figure 1 As shown, the earphone includes an ear cap assembly structure 1 and an ear cap 2, and the ear cap 2 is assembled on the ear cap assembly structure 1. It should be noted that the ear cap 2 is detachably connected to the ear cap assembly structure 1, so that the ear cap 2 can be disassembled and replaced. Figure 2 This is an exploded schematic diagram of an earphone provided by an embodiment of the present utility model. Figure 3 This is a cross-sectional diagram of an earphone before assembly provided by an embodiment of the present invention. Figure 4 This is a cross-sectional diagram of an assembled earphone provided by an embodiment of the present invention, combined with Figure 2 、 Figure 3 and Figure 4 As shown, the ear cap assembly structure 1 provided by the embodiment of the present invention includes a sound guide tube 11, an elastic bracket 12, and a housing 13. The elastic bracket 12 is disposed in the sound guide tube 11 and includes a spring clip 121. The spring clip 121 extends out of the sound guide tube 11 to snap together with the ear cap 2, thereby achieving a detachable connection between the ear cap assembly structure 1 and the ear cap 2.

[0045] Combine Figure 2 、 Figure 3 and Figure 4 As shown, the ear cap 2 provided in the embodiment of the present invention includes an ear plug portion 21 and a connecting portion 22 , and the ear plug portion 21 is covered on the outside of the connecting portion 22 . Figure 5 This is a schematic structural diagram of the connection portion provided by an embodiment of the present utility model. Figure 6 This is a structural diagram of another perspective of the connection portion provided by the embodiment of the utility model, combined with Figure 5 and Figure 6 As shown, the connecting portion 22 is configured as a tubular structure. Figure 4As shown, the connecting portion 22 is sleeved on the sound guide tube 11. It should be noted that the hardness of the earplug portion 21 is less than that of the connecting portion 22. Optionally, the earplug portion 21 is configured to be a silicone material, the connecting portion 22 is configured to be a plastic material, and the earplug portion 21 and the connecting portion 22 are integrally formed. Thus, the ear cap 2 is connected to the spring buckle 121 by the connecting portion 22 having a greater hardness, which can ensure the reliability of the connection, thereby preventing the ear cap 2 from falling off due to deformation of the connecting portion 22. At the same time, the ear cap 2 can improve the comfort of wearing the earphones through the earplug portion 21 having a smaller hardness. Furthermore, combined with Figure 3 、 Figure 4 、 Figure 5 and Figure 6 As shown, the inner sidewall of the connecting portion 22 is provided with a snap-fitting groove 221. The snap-fitting buckle 121 extends into the snap-fitting groove 221 when the ear cap assembly structure 1 and the ear cap 2 are mated to achieve a snap-fit ​​connection. Thus, the connecting portion 22, by providing the snap-fitting groove 221, can ensure the reliability of the snap-fitting connection between the ear cap 2 and the ear cap assembly structure 1.

[0046] Figure 7 This is a structural diagram of the earplug portion provided by an embodiment of the utility model. Figure 8 This is a structural diagram of the earplug portion provided by the embodiment of the utility model from another perspective, combined with Figure 7 and Figure 8 As shown, in one embodiment, the earplug portion 21 includes a conduit 211, a cap body 212, and a spacer 213. Specifically, the conduit 211 is configured as a tubular structure to form a sound outlet channel, the cap body 212 extends outward from the upper end of the conduit 211 to form a bowl-shaped structure, and the spacer 213 is disposed in the conduit 211 to separate the sound outlet channel into an upper section and a lower section. Furthermore, a plurality of sound outlet holes 2131 connecting the upper section and the lower section are provided on the spacer 213. Furthermore, the connecting portion 22 is located in the lower section, that is, at the lower end of the conduit 211. It is easy to understand that the lower end of the conduit 211 is configured as a contoured structure to match the connecting portion 22.

[0047] Figure 9 This is a schematic diagram of the structure of an elastic bracket provided by an embodiment of the present utility model. Figure 9 As shown, in one embodiment, the elastic bracket 12 further includes an elastic arm 122 and a base 123. Specifically, the elastic arm 122 is connected to the spring buckle 121 and is bent in the vertical direction, so that the elastic arm 122 can smoothly undergo elastic deformation when the spring buckle 121 is subjected to an external force, thereby enabling the spring buckle 121 to move or reset in the horizontal direction so as to move out of or extend into the engaging slot 221. It should be noted that Figure 9 The elastic arm 122 of the elastic bracket 12 shown is bent downward in the vertical direction. As an optional embodiment, the elastic arm 122 of the elastic bracket 12 can also be bent upward in the vertical direction. Figure 3 、 Figure 4 and Figure 9 As shown, the base 123 is connected to the elastic arm 122 and abuts against the bottom of the sound guide tube 11, thereby facilitating the positioning of the elastic arm 122 and the snap 121 to ensure that the snap 121 can be stably moved out of or inserted into the engaging groove 221. Figure 9 As shown, the elastic arm 122 includes a bearing portion 1221 and a supporting portion 1222. The bearing portion 1221 extends horizontally from the spring clip 121, and the supporting portion 1222 extends vertically from the bearing portion 1221 and is connected to the base 123. As a result, the elastic arm 122 can effectively utilize its own elastic deformation to ensure that the spring clip 121 can be stably moved out of or inserted into the engaging slot 221. Optionally, there are two spring clips 121, two engaging slots 221 are provided to correspond one to one with the spring clips 121, and four elastic arms 122 are provided so that each side of each spring clip 121 can be connected to an elastic arm 122 respectively. The base 123 is configured as an annular structure to adapt to the sound guide tube 11 and simultaneously connect the four supporting portions 1222. At the same time, the bearing portion 1221 is configured to adapt to the sound guide tube 11 and is configured into an arc shape.

[0048] Combine Figure 3 、 Figure 4 and Figure 6 As shown, in one embodiment, a guide surface 222 is provided on the inner side wall of the bottom of the connecting portion 22, and the guide surface 222 is inclined from top to bottom toward the outside. Figure 3 、 Figure 4 and Figure 9 As shown, the top of the spring buckle 121 is provided with a mating surface 1211, which is inclined outward from top to bottom. Therefore, when the ear cap 2 is moved toward the ear cap assembly structure 1 for assembly, the mating surface 1211 contacts and slides with the guide surface 222, so that the spring buckle 121 can move inward under the action of the connecting portion 22 and drive the elastic arm 122 to undergo elastic deformation, so that after the elastic arm 122 is reset, the spring buckle 121 can extend into the engaging groove 221 to complete the engagement.

[0049] like Figure 9 As shown, in one embodiment, the bottom of the snap button 121 is provided with a curved surface 1212. Thus, when the ear cap 2 needs to be pulled out of the ear cap assembly structure 1, the snap button 121 can be easily moved inward by contacting the curved surface 1212 to receive force, thereby achieving the detachment of the engaging groove 221.

[0050] Combine Figure 4 、 Figure 5 and Figure 6As shown, in one embodiment, the lower wall 2211 of the engaging groove 221 is arranged horizontally. Furthermore, the upper wall 2212 of the engaging groove 221 is inclined outward from top to bottom. Thus, the engaging groove 221 can ensure that the snap 121 is difficult to disengage through the lower wall 2211, while also providing a clearance for the snap 121 through the upper wall 2212, thereby extending the service life of the ear cap assembly structure 1.

[0051] Figure 10 This is a schematic diagram of the structure of the housing provided by the embodiment of the present utility model. Figure 10 As shown, in one embodiment, the housing 13 is provided with an opening 131. It should be noted that, Figure 10 Only a partial structure of the housing 13 is shown. The complete housing 13 can form a closed accommodating cavity capable of accommodating electronic components. Figure 11 This is a structural diagram of a sound guide tube provided by an embodiment of the utility model. Figure 12 This is a structural diagram of a sound guide tube provided by an embodiment of the present invention from another perspective, combined with Figure 11 and Figure 12 As shown, in one embodiment, the sound guide tube 11 includes a main body 111 and an expansion portion 112. The main body 111 is configured as a tubular structure, and the expansion portion 112 extends outward from the lower end of the main body 111 to form a disc-shaped structure. Figure 4 As shown, the outward expansion portion 112 is located in the housing 13 and abuts against the inner wall of the housing 13 to form a closed structure at the connection, and the main body 111 extends out of the housing 13 through the opening 131 to connect with the ear cap 2. Figure 4 As shown, the bottom of the ear cap 2 is arranged between the shell 13 and the sound guide tube 11, and is respectively in contact with the shell 13 and the outward expansion portion 112, thereby further preventing the ear cap 2 from falling off.

[0052] Combine Figure 11 and Figure 12 As shown, in one embodiment, the side wall of the sound guide tube 11 is provided with a buckle hole 113, that is, the side wall of the main body 111 is provided with a buckle hole 113. Figure 4 As shown, the spring buckle 121 extends out of the sound guide tube 11 through the buckle hole 113. It should be noted that there are two spring buckles 121, and two buckle holes 113 are provided, and the positions, shapes and sizes match those of the spring buckles 121.

[0053] Combine Figure 11 and Figure 12As shown, in one embodiment, the inner side wall of the main body 111 protrudes inward to form a first protrusion 114. It should be noted that there are two first protrusions 114 and they are distributed on both sides of the snap hole 113. The shape of the first protrusion 114 matches the elastic arm 122, that is, the first protrusion 114 matches the elastic bracket 12. Therefore, the sound guide tube 11 can limit the movement direction of the snap 121 through the first protrusion 114 to ensure that the snap 121 can stably extend into or out of the snap groove 221. At the same time, the first protrusion 114 can also limit the elastic deformation of the elastic arm 122 to further ensure that the snap 121 can stably extend into or out of the snap groove 221.

[0054] Figure 13 This is a schematic diagram of the structure of another elastic bracket provided by an embodiment of the present invention. Figure 13 As shown, in one embodiment, the elastic bracket 12 further includes an elastic arm 122. Specifically, the elastic arm 122 is connected to the spring buckle 121 and is bent in the vertical direction, so that the elastic arm 122 can smoothly undergo elastic deformation when the spring buckle 121 is subjected to an external force, thereby enabling the spring buckle 121 to move or reset in the horizontal direction so as to move out of or extend into the engaging slot 221. It should be noted that Figure 13 The elastic arm 122 of the elastic bracket 12 shown is bent downward in the vertical direction. As an optional embodiment, the elastic arm 122 of the elastic bracket 12 can also be bent upward in the vertical direction. Figure 13 As shown, the elastic arm 122 is formed by bending a sheet of elastic body in the vertical direction to form a U-shaped first bending portion 1223, so that the elastic arm 122 can effectively use its own elastic deformation to ensure that the spring buckle 121 can be stably moved out of or inserted into the engaging slot 221. Optionally, there are two spring buckles 121, and two engaging slots 221 are provided to correspond to the spring buckles 121 one to one. The two spring buckles 121 are connected by an elastic arm 122, and the elastic arm 122 is provided with two first bending portions 1223 to correspond to the spring buckles 121 one to one. It should be noted that Figure 13 The elastic bracket 12 shown can extend the spring buckle 121 by providing a buckle hole 113 on the sound guide tube 11, and can be guided and limited by providing a first protrusion 114 in the sound guide tube 11.

[0055] like Figure 13As shown in the drawings, in an embodiment, the top of the elastic buckle 121 is provided with a matching surface 1211 which is inclined downward and outward from top to bottom to match the guide surface 222 on the connecting portion 22. Thus, when the ear cap 2 is moved towards the ear cap assembly structure 1 for assembly, the matching surface 1211 slides in contact with the guide surface 222, so that the elastic buckle 121 can be moved inward under the action of the connecting portion 22 and the elastic arm 122 is elastically deformed, so that the elastic buckle 121 can be extended into the clamping groove 221 to complete the buckling after the elastic arm 122 is reset.

[0056] As shown in the drawings, Figure 13 in an embodiment, the bottom of the elastic buckle 121 is provided with an arc surface 1212. Thus, when the ear cap 2 needs to be pulled out of the ear cap assembly structure 1, the elastic buckle 121 can be conveniently moved inward by using the arc surface 1212 to contact the force, so that the clamping groove 221 can be pulled out.

[0057] Figure 14 is another structure schematic view of the elastic support provided by the embodiment of the utility model, as shown in the drawings, Figure 14 in an embodiment, the elastic support 12 further comprises an elastic arm 122. Specifically, the elastic arm 122 is connected to the elastic buckle 121 and is bent in the horizontal direction, so that the elastic arm 122 can be elastically deformed smoothly when the elastic buckle 121 is subjected to external force, and then the elastic buckle 121 can be moved or reset in the horizontal direction to move out of or extend into the clamping groove 221. It should be noted that, Figure 14 the elastic arm 122 of the elastic support 12 shown in the drawings is bent inward in the horizontal direction. As an optional embodiment, the elastic arm 122 of the elastic support 12 can also be bent outward in the horizontal direction. Further, as shown in the drawings, Figure 14 the elastic arm 122 is formed by a rod-shaped elastic body and is bent in the horizontal direction to form a U-shaped second bending portion 1224, so that the elastic arm 122 can effectively utilize its elastic deformation to ensure that the elastic buckle 121 can be stably moved out of or extended into the clamping groove 221. Alternatively, two elastic buckles 121 are provided, and two clamping grooves 221 are provided to correspond to the two elastic buckles 121, the two elastic buckles 121 are connected by two elastic arms 122, and each elastic arm 122 is provided with a second bending portion 1224.

[0058] As shown in the drawings, Figure 14As shown, in one embodiment, a mating surface 1211 is provided on the top of the spring buckle 121. The mating surface 1211 is inclined outward from top to bottom to mate with the guide surface 222 on the connecting portion 22. Therefore, when the ear cap 2 is moved toward the ear cap assembly structure 1 for assembly, the mating surface 1211 and the guide surface 222 come into contact and slide, thereby enabling the spring buckle 121 to move inward under the action of the connecting portion 22 and drive the elastic arm 122 to undergo elastic deformation. After the elastic arm 122 is subsequently reset, the spring buckle 121 can be inserted into the engaging slot 221 to complete the engagement.

[0059] like Figure 14 As shown, in one embodiment, the bottom of the snap button 121 is provided with a curved surface 1212. Thus, when the ear cap 2 needs to be pulled out of the ear cap assembly structure 1, the snap button 121 can be easily moved inward by contacting the curved surface 1212 to receive force, thereby achieving the detachment of the engaging groove 221.

[0060] Figure 15 This is a structural diagram of another sound guide tube provided by an embodiment of the utility model. Figure 16 This is a schematic diagram of the structure of another sound guide tube provided by the embodiment of the present invention from another perspective, combined with Figure 15 and Figure 16 As shown, in one embodiment, the sound guide tube 11 includes a main body 111 and an outer expansion portion 112, the main body 111 is configured as a tubular structure, and the outer expansion portion 112 extends from the lower end of the main body 111 toward the outside to form a disc-shaped structure. It should be noted that the outer expansion portion 112 is located inside the outer shell 13 and abuts against the inner wall of the outer shell 13 to form a closed structure at the connection, and the main body 111 extends out of the outer shell 13 through the opening 131 so as to dock with the ear cap 2. It should be further noted that the bottom of the ear cap 2 is disposed between the outer shell 13 and the sound guide tube 11, and abuts against the outer shell 13 and the outer expansion portion 112, respectively, thereby further preventing the ear cap 2 from falling off.

[0061] Combine Figure 15 and Figure 16 As shown, in one embodiment, the side wall of the sound guide tube 11 is provided with a snap hole 113. It should be noted that the spring buckle 121 extends out of the sound guide tube 11 through the snap hole 113. It should be further noted that there are two snap holes 113 corresponding to the number of spring buckles 121, and the position, shape, and size of the snap holes 113 match those of the spring buckles 121.

[0062] Combine Figure 15 and Figure 16 As shown, in one embodiment, the inner side wall of the main body 111 protrudes inward to form a first protrusion 114 and a second protrusion 115. It should be noted that there are two first protrusions 114 and two second protrusions 115 respectively and they are distributed on both sides of the buckle hole 113. Figure 14 、 Figure 15 and Figure 16 As shown, the shape and position of the first protrusion 114 match the elastic arm 122, and the shape and position of the second protrusion 115 match the second bent portion 1224. Thus, the sound guide tube 11 can limit the movement direction of the snap 121 through the first protrusion 114 to ensure that the snap 121 can stably extend into or out of the engaging slot 221. At the same time, the second protrusion 115 can limit the second bent portion 1224 to further ensure that the snap 121 can stably extend into or out of the engaging slot 221.

[0063] Figure 17 This is a schematic diagram of the structure of another elastic bracket provided by the embodiment of the present utility model. Figure 17 As shown, in one embodiment, the elastic bracket 12 further includes an elastic arm 122. Specifically, the elastic arm 122 is connected to the spring buckle 121 and is bent in the horizontal direction, so that the elastic arm 122 can smoothly undergo elastic deformation when the spring buckle 121 is subjected to an external force, thereby enabling the spring buckle 121 to move or reset in the horizontal direction so as to move out of or extend into the engaging slot 221. It should be noted that Figure 17 The elastic arm 122 of the elastic bracket 12 shown is bent inwardly in the horizontal direction. As an optional embodiment, the elastic arm 122 of the elastic bracket 12 can also be bent outwardly in the horizontal direction. Figure 17 As shown, the elastic arm 122 is formed by bending a sheet of elastic material horizontally to form a U-shaped third bent portion 1225. Thus, the elastic arm 122 can effectively utilize its own elastic deformation to ensure that the spring buckle 121 can be stably moved out of or inserted into the engaging slot 221. Optionally, two spring buckles 121 are provided, and two engaging slots 221 are provided to correspond to each spring buckle 121. The two spring buckles 121 are connected by an elastic arm 122, and the elastic arm 122 is also provided with a third bent portion 1225.

[0064] like Figure 17 As shown, in one embodiment, a mating surface 1211 is provided on the top of the spring buckle 121. The mating surface 1211 is inclined outward from top to bottom to mate with the guide surface 222 on the connecting portion 22. Therefore, when the ear cap 2 is moved toward the ear cap assembly structure 1 for assembly, the mating surface 1211 and the guide surface 222 come into contact and slide, thereby enabling the spring buckle 121 to move inward under the action of the connecting portion 22 and drive the elastic arm 122 to undergo elastic deformation. After the elastic arm 122 is subsequently reset, the spring buckle 121 can be inserted into the engaging slot 221 to complete the engagement.

[0065] like Figure 17As shown in the drawings, in an embodiment, the bottom of the elastic buckle 121 is provided with an arc surface 1212. Thus, when the ear cap 2 needs to be pulled out from the ear cap assembly structure 1, the elastic buckle 121 can be conveniently moved to the inside by using the arc surface 1212 to contact the force, so that the falling-off of the clamping groove 221 can be achieved.

[0066] Figure 18 is a structural schematic view of another kind of sound guide pipe provided by the embodiment of the utility model, Figure 19 is a structural schematic view of another kind of sound guide pipe from another perspective provided by the embodiment of the utility model, in combination with Figure 18 and Figure 19 As shown in the drawings, in an embodiment, the sound guide pipe 11 includes a main body part 111 and an outward expansion part 112, the main body part 111 is provided as a tubular structure, and the outward expansion part 112 extends outward from the lower end of the main body part 111 to form a disc-shaped structure. It should be noted that the outward expansion part 112 is located in the shell 13 and abuts against the inner wall of the shell 13 to form a closed structure at the connection, and the main body part 111 extends out of the shell 13 through the opening 131 to be connected with the ear cap 2. It should be further noted that the bottom of the ear cap 2 is arranged between the shell 13 and the sound guide pipe 11 and abuts against the shell 13 and the outward expansion part 112 respectively, so that the falling-off of the ear cap 2 can be further prevented.

[0067] In combination with Figure 18 and Figure 19 As shown in the drawings, in an embodiment, the side wall of the sound guide pipe 11 is provided with a buckle hole 113. It should be noted that the elastic buckle 121 extends out of the sound guide pipe 11 through the buckle hole 113. It should be further noted that there are two elastic buckles 121, and the buckle hole 113 is provided with two and the position, shape and size are matched with the elastic buckle 121.

[0068] In combination with Figure 18 and Figure 19 As shown in the drawings, in an embodiment, the inner side wall of the main body part 111 is inwardly protruded to form a first protruding part 114 and a second protruding part 115. It should be noted that the first protruding part 114 is provided with two and is distributed on both sides of the buckle hole 113, and the second protruding part 115 is provided with at least one and is located below the first protruding part 114. In combination with Figure 17 , Figure 18 and Figure 19 As shown in the drawings, the shape and position of the first protruding part 114 are matched with the elastic arm 122, and the shape and position of the second protruding part 115 are matched with the third bending part 1225. Thus, the sound guide pipe 11 can limit the moving direction of the elastic buckle 121 through the first protruding part 114 to ensure that the elastic buckle 121 can stably extend into or move out of the clamping groove 221, and the second protruding part 115 can limit the third bending part 1225 to further ensure that the elastic buckle 121 can stably extend into or move out of the clamping groove 221.

[0069] It should be noted that the ear cap assembly structure 1 can select any of the elastic brackets 12 and corresponding sound guide tubes 11 described above according to actual needs.

[0070] It should be noted that, before the ear cap 2 provided in the embodiment of the present invention is assembled on the ear cap assembly structure 1, the elastic arm 122 is in a natural state and the spring buckle 121 is in the initial position; when the ear cap 2 is continued to be pressed downward, the connecting portion 22 of the ear cap 2 presses the spring buckle 121 to cause the spring buckle 121 to retract; when the ear cap 2 is assembled in place, the spring buckle 121 returns to its initial position under the action of the elastic arm 122, thereby cooperating with the locking slot 221 to lock the ear cap 2 to prevent the ear cap 2 from falling out.

[0071] It should be noted that after the ear cap 2 provided in the embodiment of the present invention is assembled on the ear cap assembly structure 1, the elastic arm 122 is in a natural state and the snap 121 is in its initial position. When the ear cap 2 is pulled out with force reaching the design required force, the connecting portion 22 compresses the snap 121, causing the snap 121 to retract, thereby allowing the ear cap 2 to be removed. For example, the design required force is set to 8N.

[0072] The present invention provides an earphone comprising an ear cap assembly structure and an ear cap. The ear cap comprises an ear plug portion and a connecting portion. The connecting portion is tubular and the ear plug portion is wrapped around the connecting portion. The ear plug portion has a lower hardness than the connecting portion. The connecting portion has an inner sidewall provided with a snap-fitting groove for fastening with the ear cap assembly structure. Thus, by providing the ear plug portion and the connecting portion with different hardnesses, the ear cap can be easily assembled and is not easily removed.

[0073] The foregoing is merely a preferred embodiment of the present application and is not intended to limit the present application. Persons skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. A headset, characterized in that: The earphones include: Ear cap assembly structure (1); and An ear cap (2) comprises an ear plug portion (21) and a connecting portion (22), wherein the connecting portion (22) is configured to be tubular, the ear plug portion (21) is wrapped around the outside of the connecting portion (22), the hardness of the ear plug portion (21) is smaller than that of the connecting portion (22), and a snap-fitting groove (221) is provided on the inner side wall of the connecting portion (22) for snap-fitting connection with the ear cap assembly structure (1).

2. The earphone according to claim 1, wherein The ear cap assembly structure (1) comprises a sound guide tube (11) and an elastic bracket (12); the elastic bracket (12) is arranged in the sound guide tube (11) and comprises a spring buckle (121); the spring buckle (121) extends out of the sound guide tube (11).

3. The earphone according to claim 2, wherein The elastic bracket (12) further comprises: An elastic arm (122), the elastic arm (122) is connected to the spring buckle (121) and is bent in a vertical direction.

4. The earphone according to claim 3, wherein The elastic bracket (12) further comprises: A base (123) is connected to the elastic arm (122) and abuts against the bottom of the sound guide tube (11).

5. The earphone according to claim 4, characterized in that The elastic arm (122) comprises: A bearing portion (1221), the bearing portion (1221) extending from the spring buckle (121) in a horizontal direction; and A supporting portion (1222) extends from the bearing portion (1221) in a vertical direction and is connected to the base (123).

6. The earphone according to claim 2, wherein A guide surface (222) is provided on the inner side wall of the bottom of the connecting portion (22), and the guide surface (222) is inclined from top to bottom toward the outside; A matching surface (1211) is provided on the top of the spring buckle (121), and the matching surface (1211) is inclined from top to bottom toward the outside.

7. The earphone according to claim 2, wherein The bottom of the spring buckle (121) is provided with a curved surface (1212).

8. The earphone according to claim 2, wherein: The ear cap assembly structure (1) further includes a shell (13), and the shell (13) is provided with an opening (131); The sound guide tube (11) comprises a main body (111) and an outwardly extending portion (112), wherein the outwardly extending portion (112) extends outward from the lower end of the main body (111), the outwardly extending portion (112) is located in the shell (13) and abuts against the inner wall of the shell (13), and the main body (111) extends out of the shell (13) through the opening (131); The bottom of the ear cap (2) is arranged between the shell (13) and the sound guide tube (11), and is respectively in contact with the shell (13) and the outward expansion portion (112).

9. The earphone according to claim 8, characterized in that The inner side wall of the main body (111) protrudes inward to form a first protrusion (114), and the first protrusion (114) matches the elastic bracket (12).

10. The earphone according to claim 2, wherein The side wall of the sound guide tube (11) is provided with a snap hole (113); The spring buckle (121) extends out of the sound guide tube (11) through the buckle hole (113).

11. The earphone according to claim 1, wherein The lower wall (2211) of the engaging groove (221) is arranged in the horizontal direction; The upper wall (2212) of the engaging groove (221) is inclined from top to bottom toward the outside.

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