Open type earphone convenient for dismounting and replacing sound outlet nozzle assembly

Abstract

The utility model discloses an open type earphone convenient for dismounting and replacing sound outlet nozzle assemblies, which comprises an earphone shell and at least two sound outlet nozzle assemblies, a sound outlet part is arranged on one side of the earphone shell, a loudspeaker is arranged in the middle of the earphone shell, and a first connecting part is arranged around the periphery of the sound outlet part; the sound outlet nozzle assembly comprises a hard rubber cover body and a soft rubber sound outlet nozzle, a second connecting part is arranged at the peripheral position of the hard rubber cover body, a cover body sound outlet is formed in the middle of the hard rubber cover body, and the soft rubber sound outlet nozzle is connected with the cover body sound outlet; the hard rubber cover body of any sound outlet nozzle assembly can cover the sound outlet part of the earphone shell, and enables the second connecting part to be detachably connected with the first connecting part. According to the utility model, the operation of assembling and disassembling the sound outlet nozzle assembly is convenient, the soft rubber sound outlet nozzle does not need to be enlarged, the soft rubber sound outlet nozzle is not easy to damage, and the assembled sound outlet nozzle assembly is very firm in connection, so that consumers can conveniently replace sound outlet nozzle assemblies with different models and sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to an open earphone which is convenient for disassembling and replacing a sound outlet assembly. Background Art

[0002] Open-ear headphones are Bluetooth headphones that do not need to be inserted into the external auditory canal of the human ear. They are more stable and comfortable to wear on the ear and are more suitable for wearing in sports scenes. They are not completely isolated from the outside world, so sound can leak out, and vice versa, you can also hear the outside world. In the prior art, in order to cooperate with sports, some open-ear headphones will add an ear hook to increase the firmness and comfort of wearing, or they can be called ear-hook headphones. The open-type earphone has an earphone sound outlet on the side close to the human ear. In the prior art, the earphone sound outlet of the open-type earphone usually does not have a sound outlet, but a sound outlet is directly provided in the earphone sound outlet to play sound to the human ear. The structure of such an open-type earphone can be found in Chinese patent documents CN307088567S, CN308328656S, CN308382068S, etc. However, the main problem of such an open-type earphone without a sound outlet is that the gap between the earphone sound outlet and the concha cavity of the human ear is large, the sound leakage is relatively large, and the external noise is also easy to enter the human ear from the gap between the earphone sound outlet and the concha cavity of the human ear, so it is not suitable for some users who have high requirements for sound quality.

[0003] In view of this, the applicant of this patent has designed a soft-gel sound outlet in the sound outlet of the open-type earphone. Although the soft-gel sound outlet cannot be inserted into the external auditory canal of the human ear, it can be placed in the concha cavity of the human ear. When the ear hook is worn, the soft-gel sound outlet is difficult to slip out of the concha cavity. The soft-gel sound outlet of the open-type earphone can significantly reduce the gap between the sound outlet of the earphone and the concha cavity of the human ear, avoid excessive sound leakage, and significantly reduce external noise entering the human ear. However, since the depth, width and other dimensions of the concha cavity of the human ear of different users are different, and the soft-gel sound outlet of the current open-type earphone is fixed, it is difficult for the open-type earphone with a soft-gel sound outlet to adapt to the concha cavities of different depths, widths and other dimensions, and it is difficult to meet the usage needs of different users.

[0004] In the prior art, the applicant of this patent has retrieved a number of headphones with replaceable ear caps or rubber sleeves. For example, Chinese patent document CN205793193U discloses a headphone with variable in-ear depth, the headphone includes a shell, a sound outlet hole is provided on the shell, a headphone rubber sleeve is detachably mounted on the shell, a sound outlet mouth is provided on the headphone rubber sleeve corresponding to the sound outlet hole, the sound outlet mouth and the main body of the headphone rubber sleeve are tilted, the headphone rubber sleeve includes an in-ear headphone rubber sleeve and a semi-in-ear headphone rubber sleeve, and the in-ear depth of the headphone is adjusted by replacing different types of headphone rubber sleeves. Chinese patent document CN212752600U discloses a headphone with freely replaceable ear caps, including a headphone and an ear cap, a first connecting portion is provided on the headphone, a second connecting portion is provided on the ear cap, a positioning portion is provided on the periphery of the first connecting portion, and a positioning groove is provided on the periphery of the second connecting portion. Chinese patent document CN212137900U discloses a Bluetooth noise-cancelling headset that can be freely switched to an in-ear form; it includes an earphone body and an earphone head cover, the earphone body includes a shell and an electronic control component arranged in the shell, the shell is provided with a semi-in-ear sound output head, the electronic control component includes an in-ear detection module, a noise reduction module and a speaker module, the earphone head cover and the sound output head match the receiving cavity, the earphone head cover is detachably mounted on the outside of the sound output head through the receiving cavity, and the earphone head cover is provided with a replaceable in-ear ear cap.

[0005] However, the above-mentioned headphones with replaceable ear caps or rubber sleeves have the following major technical problems: (1) The earphone shell of the open-type earphone is only close to the human ear, but does not extend into the concha cavity of the human ear. Only the soft rubber sound outlet needs to be placed in the concha cavity of the human ear; however, the above-mentioned headphones with replaceable ear caps or rubber sleeves all need to be provided with a fixing component that is inserted into the concha cavity of the human ear in order to fix the ear cap or rubber sleeve. Therefore, the above-mentioned technology of replaceable ear caps or rubber sleeves is difficult to apply to open-type earphones; (2) The ear caps or rubber sleeves are all put on the earphone body in a set manner. During the installation process, the ear caps or rubber sleeves need to be pulled open with force. The ear cap or rubber sleeve must be enlarged and deformed before it can be put on the earphone body, and the ear cap or rubber sleeve is easily damaged during the pulling process; (3) During the process of putting on the ear cap or rubber sleeve, it is easy to have the problem of incorrect installation direction, and it is often necessary to put it on multiple times before the ear cap or rubber sleeve is in the correct direction, which makes it inconvenient to assemble and disassemble the ear cap or rubber sleeve; (4) Since the ear cap or rubber sleeve is made of soft rubber material, and the earphone body is made of hard rubber material, the connection firmness of the ear cap or rubber sleeve directly put on the earphone body is relatively poor, especially in the Chinese patent document CN21275260U, the ear cap or rubber sleeve is easy to loosen from the earphone body. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide an open-type earphone which is easy to disassemble and replace a sound outlet assembly in view of the deficiencies of the above-mentioned prior art. The earphone shell of the open-type earphone does not need to be provided with a fixing component extending into the concha cavity of the human ear so that the sound outlet assembly can be assembled or disassembled. The open-type earphone is easy to assemble and disassemble the sound outlet assembly, and there is no need to stretch the soft rubber sound outlet, which is not easy to damage the soft rubber sound outlet. The assembled sound outlet assembly is very firmly connected, so that consumers can easily replace sound outlet assemblies of different models and sizes.

[0007] In order to solve the above technical problems, the technical solution of the utility model is: an open earphone that is easy to disassemble and replace a sound outlet assembly, comprising an earphone shell and at least two sound outlet assemblies, a sound outlet portion is provided on one side of the earphone shell, a speaker is installed in the middle of the earphone shell, the sound outlet direction of the speaker faces the sound outlet portion, and a first connection portion is provided around the outer periphery of the sound outlet portion; the sound outlet assembly comprises a hard rubber cover and a soft rubber sound outlet, a second connection portion corresponding to the first connection portion is provided at the outer periphery of the hard rubber cover, a cover sound outlet is provided in the middle of the hard rubber cover, and the soft rubber sound outlet is connected to the cover sound outlet; the hard rubber cover of any one of the sound outlet assemblies can cover the sound outlet portion of the earphone shell, and the second connection portion is detachably connected to the first connection portion; the soft rubber sound outlet has a sound outlet cavity for being placed in a human concha cavity, and the sound outlet cavity is provided with a sound outlet hole for emitting sound to the external auditory canal of the human body.

[0008] Preferably, the first connecting portion of the earphone shell includes an annular groove, at the bottom of which at least two sockets are provided, and the second connecting portion of the sound outlet assembly includes at least two connecting hooks corresponding to the sockets, and the connecting hooks can pass through the corresponding sockets and hook onto the bottom of the annular groove after the hard rubber cover body rotates forward by a set angle, or detach from the bottom of the annular groove and move out from the corresponding sockets after the hard rubber cover body rotates reversely by a set angle.

[0009] Preferably, at least two first arc-shaped protrusions matching the jacks are provided on the back side of the bottom of the annular groove, and the connecting hook is provided with a second arc-shaped protrusion corresponding to the first arc-shaped protrusions. When the connecting hook rotates forwardly with the hard rubber cover, the second arc-shaped protrusion can pass over the first arc-shaped protrusion in the forward direction to position the hard rubber cover and the earphone shell; when the connecting hook rotates reversely with the hard rubber cover, the second arc-shaped protrusion can pass over the first arc-shaped protrusion in the reverse direction to loosen the hard rubber cover and the earphone shell.

[0010] Preferably, the hard plastic cover of the sound outlet assembly is provided with a circular edge portion matching the shape of the annular groove, the connecting hook is integrally connected to one side of the circular edge portion, and the circular edge portion can be detachably accommodated in the annular groove.

[0011] Preferably, the insertion hole of the annular groove is an arc-shaped slot hole, and the connecting hook is an arc-shaped connecting hook, and the arc-shaped connecting hook can rotate in the annular groove.

[0012] Preferably, the earphone housing comprises an earphone front housing and an earphone rear housing that cover each other, the sound outlet and the annular groove are arranged on the earphone front housing, and an arc-shaped cavity for accommodating a connecting hook and for the connecting hook to rotate is arranged between the earphone front housing and the earphone rear housing. Furthermore, the sound outlet is provided with a plurality of sound outlet holes, and an ear hook is also connected to the earphone housing.

[0013] Preferably, the earphone shell is provided with a first alignment point, and the hard rubber cover of the sound outlet assembly is provided with a second alignment point, and when the first connecting part of the earphone shell is connected to the second connecting part of the sound outlet assembly, the positions of the first alignment point and the second alignment point are aligned with each other.

[0014] Preferably, an annular fixing plate is provided on the outer peripheral edge of the sound outlet of the hard rubber cover, and a plurality of fixing holes are provided on the annular fixing plate at intervals; a first clamp and a second clamp are provided at one end of the soft rubber sound outlet, and the first clamp and the second clamp clamp the annular fixing plate together, and the first clamp and the second clamp are connected to a plurality of connecting columns matching the fixing holes, and the connecting columns are passed through the corresponding fixing holes.

[0015] Preferably, the sound outlet cavity of the soft rubber sound outlet of each sound outlet assembly has different sizes to adapt to different sizes of human concha cavities.

[0016] The beneficial effects of the present invention are as follows: (1) Since the present invention provides a first connection portion at the peripheral position of the earphone shell surrounding the sound outlet portion, and the sound outlet assembly is provided with a second connection portion corresponding to the first connection portion at the peripheral position of the hard rubber cover body, the earphone shell of the open earphone can be assembled or disassembled without providing a fixing component extending into the concha cavity of the human ear, so as to be suitable for the open earphone; (2) Since the present invention utilizes the first connection portion of the earphone shell and the second connection portion of the hard rubber cover body to assemble and disassemble the sound outlet assembly, the first connection portion and the second connection portion are both hard rubber components, so the assembly and disassembly operations are convenient, there is no need to stretch the soft rubber sound outlet, and the soft rubber sound outlet is not easily damaged. The assembled sound outlet assembly is very firmly connected, so that consumers can easily replace sound outlet assemblies of different models and sizes. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the utility model.

[0018] Figure 2 This is the second structural schematic diagram of the present utility model.

[0019] Figure 3This is one of the scattered structural diagrams of the earphone housing and one of the sound outlet components.

[0020] Figure 4 This is the second diagram of the dispersed structure of the earphone housing and one of the sound outlet components.

[0021] Figure 5 This is a structural diagram of the mouthpiece assembly.

[0022] Figure 6 This is a structural diagram of the front shell of the earphone.

[0023] Figure 7 This is a cross-sectional view of the soft rubber sound outlet.

[0024] Figure 8 This is an assembly diagram of the earphone housing and one of the sound outlet components. DETAILED DESCRIPTION

[0025] The structural principle and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-Figure 8As shown, the utility model is an open earphone that is easy to disassemble and replace the sound outlet assembly, including an earphone shell 1 and at least two sound outlet assemblies 2, one side of the earphone shell 1 is provided with a sound outlet 11, the middle of the earphone shell 1 is installed with a speaker 3, the sound outlet direction of the speaker 3 faces the sound outlet 11, and a first connecting part is provided around the outer periphery of the sound outlet 11; the sound outlet assembly 2 includes a hard plastic cover body 21 and a soft plastic sound outlet 22, and the outer periphery of the hard plastic cover body 21 is provided with a first connecting part opposite to the first connecting part The second connecting part to be matched, the middle part of the hard rubber cover 21 is provided with a cover sound outlet 211, and the soft rubber sound outlet 22 is connected to the cover sound outlet 211; the hard rubber cover 21 of any sound outlet assembly 2 can cover the sound outlet part 11 of the earphone shell 1, and make the second connecting part detachably connected to the first connecting part; the soft rubber sound outlet 22 has a sound outlet cavity 29 for being placed in the human concha cavity, and the sound outlet cavity 29 is provided with a sound outlet hole 291 for emitting sound to the external auditory canal of the human body. Since the present invention has a first connection portion at the peripheral position of the earphone shell 1 surrounding the sound outlet portion 11, and the sound outlet assembly 2 has a second connection portion corresponding to the first connection portion at the peripheral position of the hard rubber cover 21, the earphone shell 1 of the open-type earphone can assemble or disassemble the sound outlet assembly 2 without providing a fixing component extending into the concha cavity of the human ear, so as to be suitable for the open-type earphone; since the present invention utilizes the first connection portion of the earphone shell 1 and the second connection portion of the hard rubber cover 21 to assemble and disassemble the sound outlet assembly 2, the first connection portion and the second connection portion are both hard rubber components, and therefore, the assembly and disassembly operations are convenient, there is no need to enlarge the soft rubber sound outlet 22, and the soft rubber sound outlet 22 is not easily damaged, and the assembled sound outlet assembly 2 is very firmly connected, so that consumers can easily replace sound outlet assemblies of different models and sizes.

[0027] like Figure 1-Figure 8As shown, the first connection portion of the earphone housing 1 includes an annular groove 12, and at least two jacks 13 are provided at the bottom of the annular groove 12. The second connection portion of the sound outlet assembly 2 includes at least two connection hooks 23 corresponding to the jacks 13. The connection hooks 23 can pass through the corresponding jacks 13 and hook the bottom of the annular groove 12 after the hard plastic cover 21 rotates forward by a set angle, or detach from the bottom of the annular groove 12 and move out of the corresponding jacks 13 after the hard plastic cover 21 rotates reversely by a set angle. It should be noted that in the embodiment, forward rotation refers to clockwise rotation, and reverse rotation refers to counterclockwise rotation. When the earphone housing 1 and the sound outlet assembly 2 need to be assembled, the connecting hook 23 of the sound outlet assembly 2 only needs to be inserted into the jack 13 of the earphone housing 1, and then, after rotating a set angle, the connecting hook 23 will hook the bottom of the annular groove 12, so that the earphone housing 1 and the sound outlet assembly 2 are assembled together; when the earphone housing 1 and the sound outlet assembly 2 need to be disassembled, the sound outlet assembly 2 only needs to be rotated counterclockwise at a set angle, and the connecting hook 23 can be removed from the jack 13, so that the earphone housing 1 and the sound outlet assembly 2 can be disassembled from each other; according to this assembly and disassembly operation mode, consumers can replace the sound outlet assembly 2 of different models and sizes. The utility model adopts a rotary assembly and disassembly operation mode, which is convenient to operate and has a stable connection.

[0028] like Figure 5 and Figure 6 As shown, at least two first arc-shaped protrusions 14 matching with the jack 13 are provided on the back side of the bottom of the annular groove 12, and the connecting hook 23 is provided with a second arc-shaped protrusion 24 corresponding to the first arc-shaped protrusion 14. When the connecting hook 23 rotates forward with the hard rubber cover 21, the second arc-shaped protrusion 24 can positively pass over the first arc-shaped protrusion 14, so that the hard rubber cover 21 and the earphone housing 1 are positioned; when the connecting hook 23 rotates reversely with the hard rubber cover 21, the second arc-shaped protrusion 24 can reversely pass over the first arc-shaped protrusion 14, so that the hard rubber cover 21 and the earphone housing 1 are loosened. By providing the first arc-shaped protrusion 14 and the second arc-shaped protrusion 24, the sound outlet assembly 2 cannot be loosened naturally after assembly, and needs to be loosened by slightly overcoming the resistance of the second arc-shaped protrusion 24, and the connection is more stable.

[0029] like Figure 3-Figure 5 As shown, the hard plastic cover 21 of the sound outlet assembly 2 is provided with a circular edge portion 25 matching the shape of the annular groove 12, and the connecting hook 23 is integrally connected to one side of the circular edge portion 25, and the circular edge portion 25 can be detachably accommodated in the annular groove 12. In this way, after the sound outlet assembly 2 is assembled, the connection is more tightly due to the cooperation between the circular edge portion 25 and the annular groove 12, and it is not easy to leak sound from the jack 13.

[0030] like Figure 3-Figure 5 As shown, as a preferred embodiment of the present invention, the insertion hole 13 of the annular groove 12 is an arc-shaped slot hole, and the connecting hook 23 is an arc-shaped connecting hook, which can rotate in the annular groove 12 .

[0031] like Figure 3 , Figure 4 and Figure 6 As shown, the earphone housing 1 includes an earphone front housing 101 and an earphone rear housing 102 that cover each other, the sound outlet 11 and the annular groove 12 are arranged on the earphone front housing 101, and an arc-shaped cavity 16 for accommodating the connecting hook 23 and for the connecting hook 23 to rotate is arranged between the earphone front housing 101 and the earphone rear housing 102. Half of the arc-shaped cavity 16 is located on the earphone front housing 101, and the other half of the arc-shaped cavity 16 is located on the earphone rear housing 102. The arc-shaped cavity 16 can also prevent the sound of the speaker from leaking from the jack 13.

[0032] like Figure 1-Figure 4 and Figure 8 As shown, the sound outlet 11 is provided with a plurality of sound outlet holes; an ear hook 4 is also connected to the earphone housing 1. Figure 8 As shown, the earphone housing 1 is provided with a first alignment point 15, and the hard rubber cover 21 of the sound outlet assembly 2 is provided with a second alignment point 26. When the first connecting portion of the earphone housing 1 is connected to the second connecting portion of the sound outlet assembly 2, the positions of the first alignment point 15 and the second alignment point 26 are aligned with each other, so that consumers can intuitively know whether the sound outlet assembly 2 has been assembled.

[0033] like Figure 3 , Figure 4 and Figure 7 As shown, an annular fixing sheet 27 is provided at the outer peripheral edge of the cover sound outlet 211 of the hard rubber cover 21, and a plurality of fixing holes 271 are provided at intervals on the annular fixing sheet 27; a first clamp 281 and a second clamp 282 are provided at one end of the soft rubber sound outlet 22, and the first clamp 281 and the second clamp 282 clamp the annular fixing sheet 27 together, and the first clamp 281 and the second clamp 282 are connected with a plurality of connecting posts 283 matching the fixing holes 271, and the connecting posts 283 are passed through the corresponding fixing holes 271. In this way, the hard rubber cover 21 and the soft rubber sound outlet 22 can be firmly connected together. Preferably, the hard rubber cover 21 and the soft rubber sound outlet 22 are fixed by in-mold connection, firstly, the hard rubber cover 21 is formed, and then the hard rubber cover 21 is placed in the molding mold of the soft rubber sound outlet 22, and the soft rubber sound outlet 22 is fixed on the hard rubber cover 21. The hard rubber cover 21 is a plastic cover, and the soft rubber sound outlet 22 is a silicone sound outlet.

[0034] like Figure 3 , Figure 4 and Figure 7As shown, the sound outlet cavity 29 of the soft rubber sound outlet of each sound outlet assembly 2 has different sizes to adapt to different sizes of human concha cavities.

[0035] The above is only a preferred embodiment of the present invention. Any slight modification, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An open-type earphone that is easy to disassemble and replace the sound outlet assembly, characterized in that: The invention comprises an earphone shell and at least two sound outlet assemblies, wherein a sound outlet is arranged on one side of the earphone shell, a speaker is installed in the middle of the earphone shell, the sound outlet direction of the speaker faces the sound outlet, and a first connection part is arranged around the outer periphery of the sound outlet; the sound outlet assembly comprises a hard rubber cover and a soft rubber sound outlet, a second connection part corresponding to the first connection part is arranged at the outer periphery of the hard rubber cover, a cover sound outlet is arranged in the middle of the hard rubber cover, and the soft rubber sound outlet is connected to the cover sound outlet; the hard rubber cover of any one of the sound outlet assemblies can cover the sound outlet of the earphone shell, and the second connection part can be detachably connected to the first connection part; the soft rubber sound outlet has a sound outlet cavity for being placed in the concha cavity of a human body, and the sound outlet cavity is provided with a sound outlet hole for emitting sound to the external auditory canal of a human body.

2. The open-type earphone for easy disassembly and replacement of the sound outlet assembly according to claim 1, characterized in that: The first connecting portion of the earphone shell includes an annular groove, and at least two sockets are opened at the bottom of the annular groove. The second connecting portion of the sound outlet assembly includes at least two connecting hooks corresponding to the sockets. The connecting hooks can pass through the corresponding sockets and hook the bottom of the annular groove after the hard rubber cover body rotates forward by a set angle, or detach from the bottom of the annular groove and move out from the corresponding sockets after the hard rubber cover body rotates reversely by a set angle.

3. The open-type earphone for easy disassembly and replacement of the sound outlet assembly according to claim 2, characterized in that: The back side of the bottom of the annular groove is provided with at least two first arc-shaped protrusions matching the jacks, and the connecting hook is provided with a second arc-shaped protrusion corresponding to the first arc-shaped protrusion. When the connecting hook rotates forwardly with the hard rubber cover, the second arc-shaped protrusion can pass over the first arc-shaped protrusion in the forward direction to position the hard rubber cover and the earphone shell; when the connecting hook rotates reversely with the hard rubber cover, the second arc-shaped protrusion can pass over the first arc-shaped protrusion in the reverse direction to loosen the hard rubber cover and the earphone shell.

4. The open-type earphone for easy disassembly and replacement of the sound outlet assembly according to claim 2, characterized in that: The hard plastic cover of the sound outlet assembly is provided with a circular edge portion matching the shape of the circular groove, the connecting hook is integrally connected to one side of the circular edge portion, and the circular edge portion can be detachably accommodated in the circular groove.

5. The open-type earphone for easy disassembly and replacement of the sound outlet assembly according to claim 2, characterized in that: The insertion hole of the annular groove is an arc-shaped slot hole, and the connecting hook is an arc-shaped connecting hook, which can rotate in the annular groove.

6. The open-type earphone for easy disassembly and replacement of the sound outlet assembly according to claim 2, characterized in that: The earphone shell comprises an earphone front shell and an earphone back shell which cover each other, the sound outlet and the annular groove are arranged on the earphone front shell, and an arc-shaped cavity for accommodating a connecting hook and for the connecting hook to rotate is arranged between the earphone front shell and the earphone back shell.

7. The open-type earphone for easy disassembly and replacement of the sound outlet assembly according to claim 6, characterized in that: The sound outlet portion is provided with a plurality of sound outlet holes, and an ear hook is connected to the earphone housing.

8. The open-type earphone with easy disassembly and replacement of the sound outlet assembly according to claim 1, characterized in that: The earphone shell is provided with a first alignment point, and the hard plastic cover of the sound outlet assembly is provided with a second alignment point. When the first connecting portion of the earphone shell is connected to the second connecting portion of the sound outlet assembly, the positions of the first alignment point and the second alignment point are aligned with each other.

9. The open-type earphone with easy disassembly and replacement of the sound outlet assembly according to claim 1, characterized in that: The outer peripheral edge of the sound outlet of the hard rubber cover is provided with an annular fixing plate, and a plurality of fixing holes are provided on the annular fixing plate at intervals; one end of the soft rubber sound outlet is provided with a first clamp and a second clamp, and the first clamp and the second clamp clamp the annular fixing plate together, and the first clamp and the second clamp are connected to a plurality of connecting columns matching the fixing holes, and the connecting columns are passed through the corresponding fixing holes.

10. The open-type earphone with easy disassembly and replacement of the sound outlet assembly according to claim 1, characterized in that: The sound outlet cavity of the soft rubber sound outlet of each sound outlet assembly has different sizes to adapt to the different sizes of human concha cavities.

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