Ear cap assembly structure and earphone

Abstract

The embodiment of the invention discloses an ear cap assembly structure and an earphone, the ear cap assembly structure comprises a shell, a sound guide tube and an elastic support, the sound guide tube is arranged in the shell and extends out of the shell, the elastic support is arranged in the sound guide tube and comprises an elastic buckle and an elastic arm, the elastic arm is connected with the elastic buckle and is bent along the horizontal direction, and the elastic support is connected with the shell. And the elastic buckle extends out of the sound guide tube to be buckled and connected with the ear cap. Therefore, the ear cap assembling structure can be buckled and connected with the ear cap by matching the elastic arm with the elastic buckle, so that the ear cap can be simply assembled and is not easy to fall off.

Description

Technical Field

[0001] The invention relates to the technical field of earphone assembly, and in particular to an ear cap assembly structure and an earphone. Background Art

[0002] When assembling the ear caps of earphones currently on the market, the assembly is usually completed by the interference between the silicone ear caps and the plastic shell, which is troublesome to assemble and can easily cause the ear caps to fall off after long-term use. Summary of the invention

[0003] In view of this, an object of the present invention is to provide an ear cap assembly structure and earphones, which can be snap-fitted and connected with the ear cap by elastic arms cooperating with spring buckles, so that the ear cap can be easily assembled and is not easy to fall off.

[0004] In a first aspect, an embodiment of the present invention provides an ear cap assembly structure, comprising: a shell; a sound guide tube, the sound guide tube being arranged in the shell and extending out of the shell; and an elastic bracket, the elastic bracket being arranged in the sound guide tube and comprising a spring buckle and an elastic arm, the elastic arm being connected to the spring buckle and bent in a horizontal direction, and the spring buckle extending out of the sound guide tube to be buckled and connected with the ear cap.

[0005] In some embodiments, the inner wall of the sound guide tube protrudes inward to form a first protrusion, and the first protrusion matches the elastic bracket.

[0006] In some embodiments, the inner wall of the sound guide tube protrudes inward to form a second protrusion, the second protrusion is located at the bending position of the elastic arm and below the first protrusion, and the second protrusion matches the elastic arm.

[0007] In some embodiments, 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.

[0008] In some embodiments, the bottom of the spring buckle is provided with a curved surface.

[0009] 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.

[0010] In some embodiments, the elastic arm is configured as a rod-shaped structure and is bent in a horizontal direction to form a second bent portion, and the second bent portion is configured as a U-shaped structure.

[0011] In some embodiments, the elastic arm is configured as a sheet-like structure and is bent in a horizontal direction to form a third bending portion, and the third bending portion is configured as a U-shaped structure.

[0012] In some embodiments, the sound guide tube includes: a main body, which extends out of the shell; and an outward expansion portion, which extends outward from the lower end of the main body, and is located in the shell and abuts against the inner wall of the shell.

[0013] In a second aspect, an embodiment of the present invention further provides an earphone, comprising: the ear cap assembly structure as described in the first aspect; and an ear cap, wherein the ear cap is buckled and connected to the ear cap assembly structure.

[0014] The embodiment of the present invention provides an ear cap assembly structure and an earphone, the ear cap assembly structure includes a shell, a sound guide tube and an elastic bracket, the sound guide tube is arranged in the shell and extends out of the shell, the elastic bracket is arranged in the sound guide tube and includes a spring buckle and an elastic arm, the elastic arm is connected to the spring buckle and is bent in the horizontal direction, and the spring buckle extends out of the sound guide tube to be buckled and connected with the ear cap. Thus, the ear cap assembly structure can be buckled and connected with the ear cap by the elastic arm and the spring buckle, so that the ear cap can be assembled simply and is not easy to fall off. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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:

[0016] Figure 1 is a schematic diagram of the structure of an earphone provided by an embodiment of the present invention;

[0017] Figure 2 is an exploded schematic diagram of an earphone provided by an embodiment of the present invention;

[0018] Figure 3 is a cross-sectional schematic diagram of an earphone before assembly provided by an embodiment of the present invention;

[0019] Figure 4 is a cross-sectional schematic diagram of an assembled earphone provided by an embodiment of the present invention;

[0020] Figure 5 is a schematic structural diagram of a connecting portion provided by an embodiment of the present invention;

[0021] Figure 6 is a structural schematic diagram of a connecting portion provided by an embodiment of the present invention from another perspective;

[0022] Figure 7 is a schematic structural diagram of an earplug portion provided by an embodiment of the present invention;

[0023] Figure 8 is a schematic structural diagram of an earplug portion from another perspective provided by an embodiment of the present invention;

[0024] Fig. 9is a schematic structural diagram of an elastic bracket provided by an embodiment of the present invention;

[0025] Fig.10 is a schematic structural diagram of a housing provided by an embodiment of the present invention;

[0026] Fig.11 It is a structural schematic diagram of a sound guide tube provided by an embodiment of the present invention;

[0027] Fig.12 is a schematic structural diagram of a sound guide tube provided by an embodiment of the present invention from another perspective;

[0028] Fig.13 is a schematic structural diagram of another elastic bracket provided by an embodiment of the present invention;

[0029] Fig.14 is a structural schematic diagram of another elastic bracket provided by an embodiment of the present invention;

[0030] Fig.15 is a schematic structural diagram of another sound guide tube provided by an embodiment of the present invention;

[0031] Fig.16 is a schematic structural diagram of another sound guide tube provided by an embodiment of the present invention from another perspective;

[0032] Fig.17 is a schematic structural diagram of another elastic bracket provided by an embodiment of the present invention;

[0033] Fig.18 is a structural schematic diagram of another sound guide tube provided by an embodiment of the present invention;

[0034] Fig.19 It is a structural schematic diagram of another sound guide tube provided by an embodiment of the present invention from another perspective.

[0035] Description of reference numerals:

[0036] 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

[0037] The present application is described below based on embodiments, but the present application is not limited to these embodiments. In the detailed description of the present application below, some specific details are described in detail. It is possible for those skilled in the art to fully understand the present application without the description of these details. In order to avoid confusing the essence of the present application, known methods, processes, flows, components and circuits are not described in detail.

[0038] In addition, persons of ordinary skill in the art will appreciate that the drawings provided herein are for illustration purposes and are not necessarily drawn to scale.

[0039] Unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0040] For ease of explanation, spatially relative terms such as "inside", "outside", "below", "below", "lower", "above", "upper", etc. 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 include different orientations of the device in use or operation other than the orientation depicted in the figures. For example, if the device in the figure is turned over, an element described as being "below" or "below" other elements or features will then be positioned as being "above" the other elements or features. Thus, the example term "below" can include both the orientations of above and below. 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.

[0041] Unless the context clearly requires otherwise, the words "include", "comprising" and similar words throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, the meaning is "including but not limited to".

[0042] In the description of this application, it should be understood that the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of this application, unless otherwise specified, the meaning of "plurality" is two or more.

[0043] Figure 1 is a schematic diagram of the structure of the earphone provided by an embodiment of the present invention, such as Figure 1As shown, the earphone comprises 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 is an exploded schematic diagram of an earphone provided by an embodiment of the present invention, Figure 3 is a cross-sectional schematic diagram of an earphone before assembly provided by an embodiment of the present invention, Figure 4 is a cross-sectional schematic diagram of an assembled headset 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 in the embodiment of the present invention comprises a sound guide tube 11, an elastic bracket 12 and a housing 13. The elastic bracket 12 is arranged in the sound guide tube 11 and comprises a spring buckle 121, which extends out of the sound guide tube 11 so as to be buckled and connected with the ear cap 2, thereby realizing a detachable connection between the ear cap assembly structure 1 and the ear cap 2.

[0044] Combination 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 outer side of the connecting portion 22 . Figure 5 is a schematic structural diagram of a connecting portion provided by an embodiment of the present invention, Figure 6 is a structural schematic diagram of another perspective of the connection portion provided by an embodiment of the present invention, combined with Figure 5 and Figure 6 As shown, the connecting portion 22 is configured as a tubular structure. Figure 4 As 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 smaller 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 means of the connecting portion 22 having a greater hardness, so that the reliability of the connection can be ensured, 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 earphone through the earplug portion 21 having a smaller hardness. Furthermore, in combination with Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, a snap-fit ​​groove 221 is provided on the inner side wall of the connecting portion 22, and the snap-fit ​​buckle 121 extends into the snap-fit ​​groove 221 to achieve snap-fit ​​connection when the ear cap assembly structure 1 and the ear cap 2 are connected. Thus, the connecting portion 22 can ensure the reliability of the snap-fit ​​connection between the ear cap 2 and the ear cap assembly structure 1 by providing the snap-fit ​​groove 221.

[0045] Figure 7 is a schematic diagram of the structure of an earplug portion provided by an embodiment of the present invention, Figure 8 is a schematic diagram of the structure of the earplug part from another perspective according to an embodiment of the present invention, 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.

[0046] Fig. 9 is a schematic diagram of the structure of an elastic bracket provided by an embodiment of the present invention, such as Fig. 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 groove 221. It should be noted that Fig. 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 Fig. 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 button 121, so as to ensure that the snap button 121 can be stably moved out of or inserted into the engaging groove 221. Fig. 9 As shown, the elastic arm 122 includes a bearing portion 1221 and a supporting portion 1222, the bearing portion 1221 extends from the spring buckle 121 in the horizontal direction, and the supporting portion 1222 extends from the bearing portion 1221 in the vertical direction and is connected to the base 123, 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 groove 221. Optionally, there are two spring buckles 121, two engaging grooves 221 are provided to correspond to the spring buckles 121 one by one, four elastic arms 122 are provided so that the two sides of each spring buckle 121 can be connected to one elastic arm 122 respectively, the base 123 is set as an annular structure to adapt to the sound guide tube 11 and connect the four supporting portions 1222 at the same time, and the bearing portion 1221 is adapted to the sound guide tube 11 and is set into an arc shape.

[0047] Combination 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 Fig. 9 As shown, the top of the spring buckle 121 is provided with a mating surface 1211, and the mating surface 1211 is inclined from top to bottom toward the outside. Therefore, when the ear cap 2 moves 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 the spring buckle 121 can extend into the engaging groove 221 to complete the engagement after the elastic arm 122 is reset.

[0048] like Fig. 9 As shown, in one embodiment, the bottom of the snap button 121 is provided with an arc surface 1212. Therefore, when the ear cap 2 needs to be pulled out from the ear cap assembly structure 1, the snap button 121 can be easily moved inward by contacting the arc surface 1212 to receive force, so as to realize the falling off of the engaging groove 221.

[0049] Combination Figure 4 , Figure 5 and Figure 6 As shown, in one embodiment, the lower wall 2211 of the engaging groove 221 is arranged in the horizontal direction. Furthermore, the upper wall 2212 of the engaging groove 221 is inclined from top to bottom toward the outside. Thus, the engaging groove 221 can ensure that the snap button 121 is difficult to be easily disengaged through the lower wall 2211, and can also adapt the snap button 121 to form a avoidance through the upper wall 2212 to increase the service life of the ear cap assembly structure 1.

[0050] Fig.10 is a schematic diagram of the structure of the housing provided by an embodiment of the present invention, such as Fig.10 As shown, in one embodiment, the housing 13 is provided with an opening 131. It should be noted that, Fig.10 Only a partial structure of the housing 13 is shown, and the complete housing 13 can form a closed accommodating cavity capable of accommodating electronic components. Fig.11 is a structural schematic diagram of a sound guide tube provided by an embodiment of the present invention, Fig.12 is a structural schematic diagram of a sound guide tube provided by an embodiment of the present invention from another perspective, combined with Fig.11 and Fig.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 from the lower end of the main body 111 toward the outside to form a disc-shaped structure. Figure 4As shown, the 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 abuts against the shell 13 and the outer expansion portion 112 respectively, so as to further prevent the ear cap 2 from falling off.

[0051] Combination Fig.11 and Fig.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, corresponding to the two spring buckles 121, the buckle holes 113 are provided with two and the positions, shapes and sizes match the spring buckles 121.

[0052] Combination Fig.11 and Fig.12 As 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 two first protrusions 114 are provided and distributed on both sides of the buckle hole 113, and 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 moving direction of the snap 121 through the first protrusion 114 to ensure that the snap 121 can stably extend into or move out of the snap groove 221, and 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 move out of the snap groove 221.

[0053] Fig.13 is a schematic diagram of the structure of another elastic bracket provided by an embodiment of the present invention, such as Fig.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 groove 221. It should be noted that Fig.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. Fig.13As 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 groove 221. Optionally, there are two spring buckles 121, and two engaging grooves 221 are provided to correspond to the spring buckles 121 one by one. The two spring buckles 121 are connected by an elastic arm 122, and two first bending portions 1223 are provided on the elastic arm 122 to correspond to the spring buckles 121 one by one. It should be noted that Fig.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.

[0054] like Fig.13 As shown, in one embodiment, a mating surface 1211 is provided on the top of the spring buckle 121, and the mating surface 1211 is inclined from top to bottom toward the outside to match the guide surface 222 on the connecting portion 22. Therefore, when the ear cap 2 moves 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 the spring buckle 121 can be extended into the engaging groove 221 to complete the engagement after the elastic arm 122 is reset.

[0055] like Fig.13 As shown, in one embodiment, the bottom of the snap button 121 is provided with an arc surface 1212. Therefore, when the ear cap 2 needs to be pulled out from the ear cap assembly structure 1, the snap button 121 can be easily moved inward by contacting the arc surface 1212 to receive force, so as to realize the falling off of the engaging groove 221.

[0056] Fig.14 is a schematic diagram of the structure of another elastic bracket provided by an embodiment of the present invention, such as Fig.14 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 Fig.14 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. Fig.14As shown, the elastic arm 122 is formed by bending a rod-shaped elastic body in the horizontal direction to form a U-shaped second bending portion 1224, 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 groove 221. Optionally, there are two spring buckles 121, and two engaging grooves 221 are provided to correspond to the spring buckles 121 one by one. The two spring buckles 121 are connected by two elastic arms 122, and each elastic arm 122 is provided with a second bending portion 1224.

[0057] like Fig.14 As shown, in one embodiment, a mating surface 1211 is provided on the top of the spring buckle 121, and the mating surface 1211 is inclined from top to bottom toward the outside to match the guide surface 222 on the connecting portion 22. Therefore, when the ear cap 2 moves 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 the spring buckle 121 can be extended into the engaging groove 221 to complete the engagement after the elastic arm 122 is reset.

[0058] like Fig.14 As shown, in one embodiment, the bottom of the snap button 121 is provided with an arc surface 1212. Therefore, when the ear cap 2 needs to be pulled out from the ear cap assembly structure 1, the snap button 121 can be easily moved inward by contacting the arc surface 1212 to receive force, so as to realize the falling off of the engaging groove 221.

[0059] Fig.15 is a schematic diagram of the structure of another sound guide tube provided by an embodiment of the present invention, Fig.16 is a schematic diagram of the structure of another sound guide tube provided by an embodiment of the present invention from another perspective, combined with Fig.15 and Fig.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 in 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, so as to further prevent the ear cap 2 from falling off.

[0060] Combination Fig.15 and Fig.16As shown, in one embodiment, the side wall of the sound guide tube 11 is provided with a buckle hole 113. It should be noted that the spring buckle 121 extends out of the sound guide tube 11 through the buckle hole 113. It should be further noted that, corresponding to the two spring buckles 121, there are two buckle holes 113 and the position, shape and size match the spring buckles 121.

[0061] Combination Fig.15 and Fig.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. Fig.14 , Fig.15 and Fig.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 bending portion 1224. Thus, the sound guide tube 11 can limit the moving direction of the snap 121 through the first protrusion 114 to ensure that the snap 121 can stably extend into or move out of the engaging groove 221, and the second protrusion 115 can limit the second bending portion 1224 to further ensure that the snap 121 can stably extend into or move out of the engaging groove 221.

[0062] Fig.17 is a schematic diagram of the structure of another elastic bracket provided by an embodiment of the present invention, such as Fig.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 Fig.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. Fig.17 As shown, the elastic arm 122 is formed by bending a sheet of elastic body in the horizontal direction to form a U-shaped third bending portion 1225, 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 groove 221. Optionally, two spring buckles 121 are provided, and two engaging grooves 221 are provided to correspond to the spring buckles 121 one by one. The two spring buckles 121 are connected by an elastic arm 122, and a third bending portion 1225 is provided on the elastic arm 122.

[0063] like Fig.17As shown, in one embodiment, a mating surface 1211 is provided on the top of the spring buckle 121, and the mating surface 1211 is inclined from top to bottom toward the outside to match the guide surface 222 on the connecting portion 22. Therefore, when the ear cap 2 moves 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 the spring buckle 121 can be extended into the engaging groove 221 to complete the engagement after the elastic arm 122 is reset.

[0064] like Fig.17 As shown, in one embodiment, the bottom of the snap button 121 is provided with an arc surface 1212. Therefore, when the ear cap 2 needs to be pulled out from the ear cap assembly structure 1, the snap button 121 can be easily moved inward by contacting the arc surface 1212 to receive force, so as to realize the falling off of the engaging groove 221.

[0065] Fig.18 is a structural schematic diagram of another sound guide tube provided by an embodiment of the present invention. Fig.19 is a structural schematic diagram of another sound guide tube provided by an embodiment of the present invention from another perspective, combined with Fig.18 and Fig.19 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 in 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, so as to further prevent the ear cap 2 from falling off.

[0066] Combination Fig.18 and Fig.19 As shown, in one embodiment, the side wall of the sound guide tube 11 is provided with a buckle hole 113. It should be noted that the spring buckle 121 extends out of the sound guide tube 11 through the buckle hole 113. It should be further noted that, corresponding to the two spring buckles 121, there are two buckle holes 113 and the position, shape and size match the spring buckles 121.

[0067] Combination Fig.18 and Fig.19 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 they are distributed on both sides of the buckle hole 113, and there is at least one second protrusion 115 and it is located below the first protrusion 114. Fig.17 , Fig.18 and Fig.19 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 third bending portion 1225. Thus, the sound guide tube 11 can limit the moving direction of the snap 121 through the first protrusion 114 to ensure that the snap 121 can stably extend into or move out of the engaging groove 221, and the second protrusion 115 can limit the third bending portion 1225 to further ensure that the snap 121 can stably extend into or move out of the engaging groove 221.

[0068] 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.

[0069] 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 an initial position; when the ear cap 2 continues to be pressed downward, the connecting portion 22 of the ear cap 2 presses the spring buckle 121 to make the spring buckle 121 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 groove 221 to lock the ear cap 2 to prevent the ear cap 2 from falling off.

[0070] It should be noted that after the ear cap 2 provided by 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 button 121 is in an initial position; when the ear cap 2 is pulled out with force, the force value reaches the design required force value, so that the connecting portion 22 can compress the snap button 121, causing the snap button 121 to retract, thereby realizing the removal of the ear cap 2. Exemplarily, the design required force value is set to 8N.

[0071] The embodiment of the present invention provides an ear cap assembly structure and an earphone, the ear cap assembly structure includes a shell, a sound guide tube and an elastic bracket, the sound guide tube is arranged in the shell and extends out of the shell, the elastic bracket is arranged in the sound guide tube and includes a spring buckle and an elastic arm, the elastic arm is connected to the spring buckle and is bent in the horizontal direction, and the spring buckle extends out of the sound guide tube to be buckled and connected with the ear cap. Thus, the ear cap assembly structure can be buckled and connected with the ear cap by the elastic arm and the spring buckle, so that the ear cap can be assembled simply and is not easy to fall off.

[0072] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An ear cap assembly structure, characterized in that: The ear cap assembly structure (1) comprises: Housing (13); a sound guide tube (11), the sound guide tube (11) being disposed in the housing (13) and extending out of the housing (13); and An elastic bracket (12), the elastic bracket (12) being arranged in the sound guide tube (11) and comprising a spring buckle (121) and an elastic arm (122), the elastic arm (122) being connected to the spring buckle (121) and being bent in a horizontal direction, the spring buckle (121) extending out of the sound guide tube (11) to be buckled and connected with the ear cap (2).

2. The ear cap assembly structure according to claim 1, characterized in that: The inner side wall of the sound guide tube (11) protrudes inward to form a first protrusion (114), and the first protrusion (114) matches the elastic bracket (12).

3. The ear cap assembly structure according to claim 2, characterized in that: The inner wall of the sound guide tube (11) protrudes inward to form a second protrusion (115); the second protrusion (115) is located at the bending position of the elastic arm (122) and below the first protrusion (114); the second protrusion (115) and the elastic arm (122) match each other.

4. The ear cap assembly structure according to claim 1, characterized in that: 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.

5. The ear cap assembly structure according to claim 1, characterized in that: The bottom of the spring buckle (121) is provided with a curved surface (1212).

6. The ear cap assembly structure according to claim 1, characterized in that: The side wall of the sound guide tube (11) is provided with a buckle hole (113); The spring buckle (121) extends out of the sound guide tube (11) through the buckle hole (113).

7. The ear cap assembly structure according to claim 1, characterized in that: The elastic arm (122) is configured as a rod-shaped structure and is bent in a horizontal direction to form a second bent portion (1224), and the second bent portion (1224) is configured as a U-shaped structure.

8. The ear cap assembly structure according to claim 1, characterized in that: The elastic arm (122) is configured as a sheet-like structure and is bent in a horizontal direction to form a third bent portion (1225), and the third bent portion (1225) is configured as a U-shaped structure.

9. The ear cap assembly structure according to claim 1, characterized in that: The sound guide tube (11) comprises: a main body (111), the main body (111) extending out of the housing (13); and An outwardly extending portion (112), the outwardly extending portion (112) extending from the lower end of the main body portion (111) toward the outside, the outwardly extending portion (112) being located inside the outer shell (13) and abutting against an inner wall of the outer shell (13).

10. A headset, characterized in that: The earphone comprises: The ear cap assembly structure (1) as claimed in any one of claims 1 to 9; and An ear cap (2), the ear cap (2) being buckled and connected to the ear cap assembly structure (1).

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