Earphone adjustment structure and ear hook type earphone

Abstract

To provide an earphone adjustment structure and an ear hook type earphone.SOLUTION: An earphone adjustment structure comprises a rotational shaft, a slide shaft sleeve 20, and a fixed shaft sleeve 30. The rotational shaft includes a shaft core line, and a first connection end 11 along the shaft core line of the rotational shaft is used for connection to an ear hook of an ear hook type earphone. The slide shaft sleeve 20 is fitted to the rotational shaft, and can be rotated around a circumference of the shaft core line with respect to the rotational shaft. The fixed shaft sleeve 30 is fitted to the slide shaft sleeve 20, can be slit along the shaft core line with respect to the rotational shaft and the slide shaft sleeve 20, and can be held at a predetermined position along the shaft core line. When the fixed shaft sleeve 30 is rotated with respect to the rotational shaft around the circumference of the shaft core line, the slide shaft sleeve 20 is synchronously rotated. The fixed shaft sleeve 30 is use for connection to an earphone main body of the ear hook type earphone.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This application belongs to the field of earphone technology, and more specifically, relates to an earphone adjustment structure and an ear-hook type earphone.

Background Art

[0002] With the progress of society, earphones have already widely existed in people's work and life. And in order to meet people's needs for earphones, various earphones, such as headphones, ear-hook type earphones, neck-hanging type earphones, etc., have emerged. Here, the ear-hook type earphone refers to an earphone with a decoration for assisting suspension added to the side of the earphone so that it can be conveniently worn and used. Since the ear-hook type earphone has good wearing stability, it is applicable to various exercise scenes.

[0003] However, the shape and size of each person's ear are different. Generally, the ear sizes of male users and female users are quite different. Conventional ear-hook type earphones mainly have a fixed size and are single in size. Thus, when some users wear ear-hook type earphones, the sound-emitting holes of the earphone body cannot be well aligned with the user's ear canal, which affects the user's experience.

Summary of the Invention

[0004] The purpose of the embodiments of this application is to solve the technical problem that conventional ear-hook type earphones mainly have a fixed size and are single in size, so when some users wear ear-hook type earphones, the sound-emitting holes of the earphone body cannot be well aligned with the user's ear canal, and to provide an earphone adjustment structure and an ear-hook type earphone.

[0005] To achieve the above purpose, the technical solution adopted in this application is to provide an earphone adjustment structure, which includes a rotating shaft, a sliding shaft sleeve, and a fixed shaft sleeve. The rotating shaft has an axis line, and one end along the axis line of the rotating shaft is used to connect to the ear-hook of the ear-hook type earphone. The sliding shaft sleeve is fitted on the rotating shaft and is rotatable relative to the rotating shaft around the axial center line. The fixed shaft sleeve is fitted on the sliding shaft sleeve and is slidable relative to the rotating shaft and the sliding shaft sleeve along the axial center line and can be held at a predetermined position along the axial center line. It can rotate synchronously relative to the rotating shaft around the axial center line along with the sliding shaft sleeve. The fixed shaft sleeve is used for connecting to the earphone body of the ear-hook type earphone.

[0006] Preferably, the displacement of the fixed shaft sleeve being slidable relative to the sliding shaft sleeve and the rotating shaft along the axial center line is 0 mm to 2 mm.

[0007] Preferably, the earphone adjustment structure further includes a resistance ring fitted on the outer wall of the sliding shaft sleeve and abutting against the inner wall of the fixed shaft sleeve.

[0008] Preferably, the fixed shaft sleeve is provided with an annular groove provided around the axial center line, and the resistance ring is locked in the annular groove.

[0009] Preferably, a guide groove is provided on the side wall of the sliding shaft sleeve, a guide block is provided on the inner wall of the fixed shaft sleeve, and the guide block is slidably provided in the guide groove along the axial center line, or A guide block is provided on the outer wall of the sliding shaft sleeve, a guide groove is provided on the side wall of the fixed shaft sleeve, and the guide block is slidably provided in the guide groove along the axial center line.

[0010] Preferably, a position limiting groove extending around the axial center line is provided on the inner wall of the sliding shaft sleeve. In the circumferential direction of the axial center line, the intervals between the opposite ends of the position limiting groove are not communicated. There is a boss on the side wall of the rotating shaft that is inserted into the position limiting groove, or A position limiting groove extending around the axis is provided on the side wall of the rotating shaft. In the circumferential direction of the axis, the intervals between the opposite ends of the position limiting groove do not communicate with each other. On the inner wall of the sliding shaft sleeve, a boss inserted into the position limiting groove is provided.

[0011] Preferably, the earphone adjustment structure further includes a stop plate connected to the rotating shaft. A first stepped surface is formed on the rotating shaft. The first stepped surface and the stop plate are provided opposite to each other with a gap along the axis. Both ends of the sliding shaft sleeve along the axis respectively abut against the first stepped surface and the stop plate.

[0012] Preferably, the earphone adjustment structure further includes a torsion spring provided in the sliding shaft sleeve, fitted on the rotating shaft, and arranged to provide a restoring force to the sliding shaft sleeve.

[0013] Preferably, the earphone adjustment structure further includes a stop plate connected to the rotating shaft. A second stepped surface is formed on the rotating shaft. The second stepped surface and the stop plate are provided opposite to each other with a gap along the axis. The torsion spring is provided along the axis between the second stepped surface and the stop plate.

[0014] An embodiment of the present application further provides an earphone of the earhook type, including an earphone body, an earhook, and the earphone adjustment structure according to any one of the above items. One end of the rotating shaft is connected to the earhook, and the fixed shaft sleeve is connected to the earphone body.

[0015] The earphone adjustment structure and the ear-hook type earphone according to the present application, compared with the prior art, connect one end of the rotating shaft to the ear-hook and connect the fixed shaft sleeve to the earphone body. When the fixed shaft sleeve slides along the axis line with respect to the sliding shaft sleeve and the rotating shaft, the fixed shaft sleeve approaches or separates the earphone body from the ear-hook along the axis line, adjusting the size of the entire ear-hook type earphone. Since the sliding shaft sleeve can be held at a predetermined position along the axis line, the position of the earphone body can be positioned. When the fixed shaft sleeve and the sliding shaft sleeve rotate with respect to the rotating shaft along the axis line, the fixed shaft sleeve rotates the earphone body with respect to the ear-hook, adjusting the deflection angle of the earphone body with respect to the ear-hook on the axis line. The earphone adjustment structure of the present application has a sliding and rotating adjustment function. By making the size of the ear-hook type earphone adjustable, when worn and used, the user can adjust the position of the earphone body according to his own needs, can better align the sound-emitting hole on the earphone body with the user's ear canal, the earphone body fits better in the user's ear, improves the user's experience, adapts to more users, and is beneficial to increasing the application target of the ear-hook type earphone.

Brief Description of the Drawings

[0016] To more clearly explain the technical solutions of the embodiments of the present application, the following briefly introduces the drawings necessary for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, without creative labor, other drawings can be obtained based on these drawings.

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Explanation of Reference Signs

[0017] 100: Earphone adjustment structure, 200: Earphone body, 300: Earhook, 10: Rotating shaft, a: Axis line, 11: First connection end, 12: Second connection end, 121: Rectangular locking part, 122: Second fixing hole, 13: First step surface, 14: Second step surface, 15: First wiring hole, 16: Boss, 20: Sliding shaft sleeve, 21: Annular groove, 22: Guide groove, 23: Locking groove, 24: Through hole, 25: Second wiring hole, 26: Position limiting groove, 30: Fixed shaft sleeve, 31: Guide block, 32: Third wiring hole, 40: Resistance ring, 50: Stop plate, 51: First fixing hole, 60: Fastener, 70: Torsion spring, 71: Rectangular hole, 72: Locking leg, 80: Decorative cover

Modes for Carrying Out the Invention

[0018] In order to more clearly and easily understand the above objects, features and advantages of the present application, specific embodiments of the present application will be described in detail below with reference to the drawings. In order to fully understand the present application, many specific details are described in the following description. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0019] In the description of this application, the orientation or positional relationship indicated by terms such as "center", "vertical direction", "horizontal direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "radial direction", "circumferential direction", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of the description of this application and the simplification of the description. It is not intended to indicate or imply that the specified device or element must have a specific orientation and be configured and operated in a specific orientation, so it should not be understood as a limitation to this application.

[0020] Also, the terms "first" and "second" are merely for the purpose of description and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In the description of this application, "a plurality" means at least two, for example, two, three, etc., unless otherwise specifically limited.

[0021] In this application, unless otherwise specifically stated, terms such as "attachment", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a removably connected one, an integrated one, a mechanically connected one, an electrically connected one, a directly connected one, an indirectly connected one through an intermediate medium, or a communication inside two elements or an interaction relationship between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific situation.

[0022] In this application, unless otherwise specified, for the first feature to be "above" or "below" the second feature, it can mean that the first feature and the second feature are in direct contact, or that the first feature and the second feature are indirectly in contact through an intermediate medium. Also, for the first feature to be "above", "upward" and "upper surface" of the second feature, it can only indicate that the first feature is directly above or obliquely above the second feature, or that the horizontal height of the first feature is higher than that of the second feature. For the first feature to be "below", "downward" and "lower surface" of the second feature, it may only represent that the first feature is directly below or obliquely below the second feature, or that the horizontal height of the first feature is smaller than that of the second feature.

[0023] Note that when an element is referred to as being "fixed to" or "provided with" another element, it may be located directly on the other element, or there may be intervening elements. When one element is considered to be "connected" to another element, it may be directly connected to the other element, or intervening elements may also be present at the same time. The terms "vertical", "horizontal", "above", "below", "left", "right" and similar expressions used in this specification are for illustrative purposes only and do not represent the only embodiment.

[0024] Referring to FIGS. 1 to 6 together, the earphone adjustment structure 100 according to the embodiment of this application will be described to adjust the size of the ear-hanging earphone.

[0025] Referring to FIGS. 1 to 3 together, the earphone adjustment structure 100 includes a rotating shaft 10, a sliding shaft sleeve 20, and a fixed shaft sleeve 30. The rotating shaft 10 has an axis line a. One end of the sliding shaft sleeve 20 along the axis line a is used to connect to the earhook 300 of the ear-hook type earphone. The sliding shaft sleeve 20 is fitted on the rotating shaft 10 and is rotatable relative to the rotating shaft 10 around the axis line a. The fixed shaft sleeve 30 is fitted on the sliding shaft sleeve 20 and is slidable relative to the rotating shaft 10 and the sliding shaft sleeve 20 along the axis line a and can be held at a predetermined position along the axis line a. The fixed shaft sleeve 30 can rotate synchronously with the sliding shaft sleeve 20 relative to the rotating shaft 10 around the axis line a. The fixed shaft sleeve 30 is used to connect to the earphone body 200 of the ear-hook type earphone.

[0026] In addition, in the embodiment of the present application, along the axis line a means along the axial direction of the axis line a, that is, along the extending direction of the axis line a. Rotating along the axis line a means rotating around the axis line a.

[0027] Here, most of the rotating shaft 10 is accommodated in the sliding shaft sleeve 20 and the fixed shaft sleeve 30. One end of the rotating shaft 10 along the axis line a penetrates one end of the sliding shaft sleeve 20 and the fixed shaft sleeve 30 and is fixedly connected to one end of the earhook 300. Both the sliding shaft sleeve 20 and the fixed shaft sleeve 30 are provided coaxially with the rotating shaft 10, and the sliding shaft sleeve 20 is accommodated in the fixed shaft sleeve 30.

[0028] The sliding shaft sleeve 20 is rotatable relative to the rotating shaft 10 about the axis line a, but the sliding shaft sleeve 20 is non-slidable relative to the rotating shaft 10 along the axis line a. The fixed shaft sleeve 30 is slidable relative to the sliding shaft sleeve 20 and the rotating shaft 10 along the axis line a, but the fixed shaft sleeve 30 is non-rotatable relative to the sliding shaft sleeve 20. When the fixed shaft sleeve 30 slides along the axis line a relative to the rotating shaft 10 and the sliding shaft sleeve 20, the fixed shaft sleeve 30 synchronously slides the earphone body 200 along the axis line a, approaches or separates the earphone body 200 from the earhook 300 along the axis line a, adjusts the size of the whole earhook-type earphone, and adapts it to the ears of most users. When the fixed shaft sleeve 30 and the sliding shaft sleeve 20 rotate relative to the rotating shaft 10 around the axis line a, the fixed shaft sleeve 30 rotates the earphone body 200 relative to the earhook 300, and by adjusting the deflection angle of the earphone body 200 relative to the earhook 300 on the axis line a, the earphone body 200 can be well fitted to the user's ear when worn and used.

[0029] When the fixed shaft sleeve 30 can slide along the axis line a to a predetermined position, the fixed shaft sleeve 30 can be held at the predetermined position along the axis line a, position the position of the earphone body 200 on the axis line a, and avoid the earphone body 200 from swinging up and down relative to the earhook 300.

[0030] The earphone adjustment structure 100 according to the present application, compared with the prior art, connects one end of the rotating shaft 10 to the ear hook 300, thereby connecting the fixed shaft sleeve 30 to the earphone body 200. When the fixed shaft sleeve 30 slides relative to the sliding shaft sleeve 20 and the rotating shaft 10 along the axis line a, the fixed shaft sleeve 30 approaches or separates the earphone body 200 from the ear hook 300 along the axis line a, adjusting the overall size of the ear-hook type earphone. Since the sliding shaft sleeve 20 can be held at a predetermined position along the axis line a, the position of the earphone body 200 can be positioned. When the fixed shaft sleeve 30 and the sliding shaft sleeve 20 rotate relative to the rotating shaft 10 around the axis line a, the fixed shaft sleeve 30 rotates the earphone body 200 relative to the ear hook 300, adjusting the deflection angle of the earphone body 200 with respect to the ear hook 300 on the axis line a. The earphone adjustment structure 100 of the present application has a sliding and rotating adjustment function, and by making it possible to adjust the size of the ear-hook type earphone, when worn and used, the user can adjust the position of the earphone body 200 according to their own needs, and can better align the sound-emitting holes in the earphone body 200 with the user's ear canal. The earphone body 200 fits better in the user's ear, improving the user's experience, adapting to more users, and being advantageous for increasing the applicable objects of the ear-hook type earphone.

[0031] In some embodiments, as shown in FIG. 1, both ends of the rotating shaft 10 along the axis line a are the first connection end 11 and the second connection end 12 respectively. The first connection end 11 is fixedly connected to one end of the ear hook 300 by one end extending from the sliding shaft sleeve 20 and the fixed shaft sleeve 30. The sliding shaft sleeve 20 is provided with an opening close to the first connection end 11. Both ends of the fixed shaft sleeve 30 are provided with openings, and the side wall of the fixed shaft sleeve 30 along the axis line a is connected to the earphone body 200.

[0032] In an embodiment of the present application, the displacement that the fixed shaft sleeve 30 can slide relative to the sliding shaft sleeve 20 and the rotating shaft 10 along the axis line a is 0 mm to 2 mm.

[0033] By setting the displacement that the sliding shaft sleeve 20 and the rotating shaft 10 slide along the axis a of the fixed shaft sleeve 30 to be 0 mm to 2 mm, it is possible to adapt to the usage needs of most users.

[0034] In one embodiment of the present application, referring to FIGS. 3 and 5 together, the earphone adjustment structure 100 further includes a resistance ring 40 that is fitted on the outer wall of the sliding shaft sleeve 20 and abuts against the inner wall of the fixed shaft sleeve 30.

[0035] Specifically, the resistance ring 40 is fixedly fitted on the outer wall of the sliding shaft sleeve 20, is provided close to the first connection end 11, and is made unable to displace relative to the sliding shaft sleeve 20 along the axis a. The resistance ring 40 abuts against the inner wall of the fixed shaft sleeve 30, thereby making frictional contact with the inner wall of the fixed shaft sleeve 30. The resistance ring 40 is used to increase the sliding resistance of the fixed shaft sleeve 30.

[0036] Preferably, the material of the resistance ring 40 may be silicone rubber, rubber, etc., but is not limited thereto. By manufacturing the material of the resistance ring 40 with materials such as silicone rubber and rubber, the resistance ring 40 has good elasticity. In this way, it can effectively ensure that the resistance ring 40 stably abuts between the sliding shaft sleeve 20 and the fixed shaft sleeve 30, but does not generate a resistance that makes it difficult for the fixed shaft sleeve 30 to slide relative to the fixed shaft sleeve 30.

[0037] In the above technical solution, the resistance ring 40 is fitted on the outer wall of the sliding shaft sleeve 20 and abutted against the inner wall of the sliding shaft sleeve 20, so as to increase the resistance for the fixed shaft sleeve 30 to slide along the axis line a. Within a predetermined range, the fixed shaft sleeve 30 can stay at any position under the action of the resistance of the resistance ring 40, realizing the positioning of the position of the earphone body 200 on the axis line a, effectively preventing the earphone body 200 from loosening, and since the fixed shaft sleeve 30 can stay at any position under the action of the resistance of the resistance ring 40, the user can more accurately adjust the distance between the earphone body 200 and the ear hook 300 according to his own needs, that is, more accurately adjust the size of the ear-hook type earphone, so that the ear-hook type earphone can better meet the user's needs.

[0038] In one embodiment of the present application, the fixed shaft sleeve 30 is provided with an annular groove 21 provided around the axis line a, and the resistance ring 40 is locked in the annular groove 21.

[0039] Preferably, the annular groove 21 is provided close to the first connection end 11.

[0040] By locking the resistance ring 40 in the annular groove 21, the resistance ring 40 can be stably fitted on the fixed shaft sleeve 30, effectively preventing the resistance ring 40 from displacing relative to the sliding shaft sleeve 20 along the axis line a.

[0041] In one embodiment of the present application, referring to FIGS. 3 and 6 together, a guide groove 22 is provided on the side wall of the sliding shaft sleeve 20, a guide block 31 is provided on the inner wall of the fixed shaft sleeve 30, and the guide block 31 is slidably provided in the guide groove 22 along the axis line a.

[0042] Specifically, the guide block 31 extends along the axial center line a, protrudes from the inner wall surface of the fixed shaft sleeve 30, and is provided close to the first connection end 11. The guide groove 22 also extends along the axial center line a, and the guide groove 22 penetrates through an end portion close to the second connection end 12 of the sliding shaft sleeve 20. The guide block 31 is inserted into the guide groove 22 along the radial direction of the axial center line a. When the fixed shaft sleeve 30 slides along the axial center line a, the guide block 31 slides along the axial center line a within the guide groove 22. Also, the guide block 31 and the guide groove 22 are engaged along the circumferential direction of the axial center line a, and the guide block 31 cannot move within the guide groove 22 around the axial center line a.

[0043] By slidably providing the guide block 31 within the guide groove 22 along the axial center line a, when the fixed shaft sleeve 30 slides along the axial center line a, the guide block 31 slides within the guide groove 22 to guide the fixed shaft sleeve 30, which is advantageous for improving the sliding stability of the fixed shaft sleeve 30. At the same time, by engaging the guide block 31 and the guide groove 22 along the circumferential direction of the axial center line a, the guide block 31 cannot move within the guide groove 22 around the axial center line a, realizing the circumferential engagement between the fixed shaft sleeve 30 and the sliding shaft sleeve 20, making it impossible for the fixed shaft sleeve 30 and the sliding shaft sleeve 20 to rotate relative to each other. The fixed shaft sleeve 30 can only slide relative to the sliding shaft sleeve 20 along the axial center line a and cannot rotate relative to the sliding shaft sleeve 20 around the axial center line a. That is, when the fixed shaft sleeve 30 rotates, the sliding shaft sleeve 20 is rotated synchronously.

[0044] Of course, in other embodiments, the guide block 31 may be provided on the outer wall of the sliding shaft sleeve 20, the guide groove 22 may be provided on the inner wall of the fixed shaft sleeve 30, and the guide block 31 may be slidably provided within the guide groove 22 along the axial center line a.

[0045] In one embodiment of the present application, referring to both Figures 2 and 4, a position limiting groove 26 extending around the axis line a is provided on the inner wall of the sliding shaft sleeve 20, the position limiting groove 26 is provided close to the first connecting end 11 in the axial direction of the axis line a, the spacing between both opposing ends of the position limiting groove 26 is not connected in the circumferential direction of the axis line a, and a boss 16 to be inserted into the position limiting groove 26 is provided on the side wall of the rotating shaft 10, the boss 16 is provided close to the first connecting end 11, and the boss 16 fits into the position limiting groove 26 such that the boss 16 cannot be displaced along the axial direction of the axis line a relative to the position limiting groove 26.

[0046] Specifically, when the sliding shaft sleeve 20 rotates relative to the rotating shaft 10 around the axis line a, the boss 16 moves within the position limiting groove 26 around the axis line a, and since the gap between the opposing ends of the position limiting groove 26 is not connected, the opposing ends of the position limiting groove 26 limit the range of movement of the boss 16, limit the range of rotation of the sliding shaft sleeve 20, and further limit the deflection angle of the earphone body 200 relative to the ear hook 300.

[0047] Preferably, the position limiting groove 26 has an arc shape around the axis a, and the maximum angle at which the boss 16 moves within the position limiting groove 26 is 15°-20°, i.e., the maximum deflection angle of the earphone body 200 relative to the earhook 300 is 15°-20°. Preferably, the maximum deflection angle of the earphone body 200 relative to the earhook 300 is 15°, i.e., the earphone body 200 can be deflected 0°-15° relative to the earhook 300.

[0048] According to the above technical solution, the engagement between the boss 16 and the position limiting groove 26 can limit the rotation range of the sliding shaft sleeve 20 relative to the rotating shaft 10, and limit the deflection angle of the earphone body 200 relative to the ear hook 300; and the engagement between the rotating shaft 10 and the sliding shaft sleeve 20 along the axial line a can be realized, preventing the rotating shaft 10 and the sliding shaft sleeve 20 from sliding relative to each other along the axial line a, that is, when the rotating shaft 10 slides along the axial line a, the sliding shaft sleeve 20 slides synchronously.

[0049] For better understanding, in other embodiments, a position limiting groove 26 extending around the axis line a may be provided on the side wall of the rotating shaft 10, and in the circumferential direction of the axis line a, the distance between the opposite ends of the position limiting groove 26 is not communicated, and a boss 16 for being inserted into the position limiting groove 26 may be provided on the inner wall of the sliding shaft sleeve 20.

[0050] In one embodiment of the present application, as shown in FIG. 3, the earphone adjusting structure 100 further includes a stop plate 50, the stop plate 50 is connected to the rotating shaft 10, a first stepped surface 13 is formed on the rotating shaft 10, the first stepped surface 13 and the stop plate 50 are provided opposite to each other with a gap along the axis line a, and both ends of the sliding shaft sleeve 20 along the axis line a are respectively in contact with the first stepped surface 13 and the stop plate 50.

[0051] Specifically, the stop plate 50 is connected to the second connection end 12 of the rotating shaft 10, the first stepped surface 13 is provided close to the first connection end 11, the sliding shaft sleeve 20 is provided between the first stepped surface 13 and the stop plate 50 along the axis line a, one end of the sliding shaft sleeve 20 is in contact with the first stepped surface 13, and the other end of the sliding shaft sleeve 20 is in contact with the stop plate 50.

[0052] In the above technical solution, by making both ends of the sliding shaft sleeve 20 along the axis line a respectively in contact with the first stepped surface 13 and the stop plate 50, the sliding of the sliding shaft sleeve 20 along the axis line a relative to the rotating shaft 10 is restricted, and it is realized that the sliding shaft sleeve 20 can rotate relative to the rotating shaft 10 around the axis line a but cannot slide relative to the rotating shaft 10 along the axis line a.

[0053] In some embodiments, a first fixing hole 51 is provided on the stop plate 50, a second fixing hole 122 is provided on the second connection end 12, and the earphone adjusting structure 100 further includes a fastener 60 that connects the stop plate 50 to the second connection end 12 by passing through the first fixing hole 51 and the second fixing hole 122.

[0054] Preferably, the fastener 60 is a screw, a bolt, etc., and the first fixing hole 51 and / or the second fixing hole 122 are screw holes.

[0055] In addition, in other embodiments, the stop plate 50 may be connected to the second connection end 12 by means such as adhesion, engagement, fastening, etc.

[0056] In one embodiment of the present application, referring to FIGS. 3 and 5 together, the earphone adjustment structure 100 further includes a torsion spring 70 provided in the sliding shaft sleeve 20, fitted on the rotating shaft 10, and arranged to provide a restoring force to the sliding shaft sleeve 20.

[0057] Specifically, one end of the torsion spring 70 is connected to the rotating shaft 10, the other end of the torsion spring 70 is connected to the sliding shaft sleeve 20, and during wearing, the torsion spring 70 provides a restoring force to the sliding shaft sleeve 20, and the sliding shaft sleeve 20 has a tendency to return to its original position under the action of the restoring force. Further, the fixed shaft sleeve 30 and the earphone body 200 have a tendency to return to their original positions. In this way, the earphone body 200 can receive force during wearing and fit into the user's ear. Here, the magnitude of the restoring force may be determined based on experiments as long as it meets the requirements, does not compress the user's ear, and does not make it difficult for the user's ear to bear.

[0058] In one embodiment of the present application, a rectangular locking portion 121 is provided at the second connection end 12, a rectangular hole 71 is formed in the torsion spring 70, the torsion spring 70 is fitted into the rectangular locking portion 121 through the rectangular hole 71, a locking groove 23 is provided on the side wall of the sliding shaft sleeve 20, the torsion spring 70 has a locking leg 72, and the locking leg 72 abuts within the locking groove 23.

[0059] Preferably, when the rectangular locking portion 121 fits into the rectangular hole 71 and the torsion spring 70 is fitted into the rectangular locking portion 121 through the rectangular hole 71, that is, when the rectangular locking portion 121 is formed through the rectangular hole 71, the circumferential fixation between the torsion spring 70 and the rotating shaft 10 is realized, so that the torsion spring 70 cannot rotate relative to the rectangular locking portion 121 around the axis line a. A through hole 24 is provided in the sliding shaft sleeve 20 close to the second connection end 12, a locking groove 23 is provided on the outer wall of the sliding shaft sleeve 20, the locking groove 23 communicates with the through hole 24, the locking leg 72 penetrates through the through hole 24 and extends into the locking groove 23, and by abutting against the side wall of the locking groove 23, the circumferential fixation between the torsion spring 70 and the sliding shaft sleeve 20 is realized. When the sliding shaft sleeve 20 rotates around the axis line a, the torque of the torsion spring 70 is increased, and a restoring force is provided for the return of the sliding shaft sleeve 20.

[0060] Specifically, the torsion spring 70 has a plurality of operating states. When the rotating shaft 10 and the sliding shaft sleeve 20 are relatively located at the initial position, the torsion spring 70 is in a pre-compressed state and provides an initial torsional force as a restoring force. When the rotating shaft 10 and the sliding shaft sleeve 20 are subjected to an external force and rotate relatively, the torsional state of the torsion spring 70 becomes larger and the provided torsional force becomes larger. In this case, the earphone body 200 can be adaptively attached to the user's ear under the action of the torsional force. When the external force received by the rotating shaft 10 and the sliding shaft sleeve 20 disappears, the torsional force of the torsion spring 70 acts as a restoring force to restore the rotating shaft 10 and the sliding shaft sleeve 20 to their original positions.

[0061] In addition, in other embodiments, an elastic piece or other members that can provide a restoring force to the sliding shaft sleeve 20 may be used.

[0062] In one embodiment of the present application, as shown in FIG. 3, a second stepped surface 14 is formed on the rotating shaft 10, the second stepped surface 14 and the stop plate 50 are provided at intervals along the axis line a, and the torsion spring 70 is provided on the second stepped surface 14 and the stop plate 50 along the axis line a.

[0063] Specifically, the second step surface 14 is provided close to the second connection end 12, and the torsion spring 70 is provided between the second step surface 14 and the stop plate 50 along the axis line a, realizing stable fitting of the torsion spring 70 to the rotating shaft 10 and preventing the torsion spring 70 from detaching from the rotating shaft 10 along the axis line a.

[0064] In one embodiment of the present application, referring to FIGS. 3 and 4 together, a first wiring hole 15 is provided in the rotating shaft 10, a second wiring hole 25 is provided in the side wall of the sliding shaft sleeve 20, and a third wiring hole 32 is provided in the side wall of the fixed shaft sleeve 30. The first wiring hole 15, the second wiring hole 25, and the third wiring hole 32 are communicated in sequence.

[0065] The first wiring hole 15 penetrates through the side walls of the first connection end 11 and the rotating shaft 10. The first wiring hole 15, the second wiring hole 25, and the third wiring hole 32 are bored with a conductive member for electrically connecting the elements in the earhook 300 and the elements in the earphone body 200. For example, the conductive member is a conducting wire. One end of the conducting wire is electrically connected to the battery inside the earhook 300, and the other end sequentially penetrates through the first wiring hole 15, the second wiring hole 25, and the third wiring hole 32 and is electrically connected to the circuit board of the earphone body 200.

[0066] In one embodiment of the present application, referring to FIGS. 3 and 5 together, the earphone adjustment structure 100 further includes a decorative cover 80 sealed at an end close to the second connection end 12 of the fixed shaft sleeve 30 so as to cover the members inside the fixed shaft sleeve 30.

[0067] Referring to FIG. 1, the embodiment of the present application further provides an earhook-type earphone including an earphone body 200, an earhook 300, and the earphone adjustment structure 100 of any of the above embodiments. One end of the rotating shaft 10 is connected to the earhook 300, and the fixed shaft sleeve 30 is connected to the earphone body 200.

[0068] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should all be included within the protection scope of the present invention. (Other possible items) (Item 1) An earphone adjustment structure, including a rotating shaft, a sliding shaft sleeve, and a fixed shaft sleeve, the rotating shaft has an axis line, and one end along the axis line of the rotating shaft is used for connecting to the earhook of the earhook-type earphone, the sliding shaft sleeve is fitted on the rotating shaft and is rotatable relative to the rotating shaft around the axis line, the fixed shaft sleeve is fitted on the sliding shaft sleeve and is slidable relative to the rotating shaft and the sliding shaft sleeve along the axis line, and can be held at a predetermined position along the axis line, and is synchronously rotatable relative to the rotating shaft around the axis line along with the sliding shaft sleeve, and the fixed shaft sleeve is used for connecting to the earphone body of the earhook-type earphone Earphone adjustment structure. (Item 2) The displacement of the fixed shaft sleeve being slidable relative to the sliding shaft sleeve and the rotating shaft along the axis line is 0 mm to 2 mm. The earphone adjustment structure according to Item 1. (Item 3) The earphone adjustment structure further includes a resistance ring, and the resistance ring is fitted on the outer wall of the sliding shaft sleeve and abuts against the inner wall of the fixed shaft sleeve. The earphone adjustment structure according to Item 1. (Item 4) The fixed shaft sleeve is provided with an annular groove provided around the axis line, and the resistance ring is locked in the annular groove. The earphone adjustment structure according to Item 3. (Item 5) A guide groove is provided on the side wall of the sliding shaft sleeve, a guide block is provided on the inner wall of the fixed shaft sleeve, and the guide block is slidably provided in the guide groove along the axis line, or, A guide block is provided on the outer wall of the sliding shaft sleeve, a guide groove is provided on the side wall of the fixed shaft sleeve, and the guide block is slidably provided in the guide groove along the axis line. The earphone adjustment structure according to Item 1. (Item 6) On the inner wall of the sliding shaft sleeve, a position limiting groove extending around the axial center line is provided. In the circumferential direction of the axial center line, the distance between the opposite ends of the position limiting groove is not communicated. On the side wall of the rotating shaft, there is a boss inserted into the position limiting groove, or, A position limiting groove extending around the axial center line is provided on the side wall of the rotating shaft. In the circumferential direction of the axial center line, the distance between the opposite ends of the position limiting groove is not communicated. A boss inserted into the position limiting groove is provided on the inner wall of the sliding shaft sleeve. The earphone adjustment structure according to any one of Items 1-5. (Item 7) The earphone adjustment structure further includes a stopper plate connected to the rotating shaft. A first stepped surface is formed on the rotating shaft. The first stepped surface and the stopper plate are provided opposite to each other with a gap along the axial center line. Both ends of the sliding shaft sleeve along the axial center line are respectively in contact with the first stepped surface and the stopper plate. The earphone adjustment structure according to any one of Items 1-5. (Item 8) The earphone adjustment structure further includes a torsion spring provided in the sliding shaft sleeve, fitted on the rotating shaft, and arranged to provide a restoring force to the sliding shaft sleeve. The earphone adjustment structure according to any one of Items 1-5. (Item 9) The earphone adjustment structure further includes a stopper plate connected to the rotating shaft. A second stepped surface is formed on the rotating shaft. The second stepped surface and the stopper plate are provided opposite to each other with a gap along the axial center line. The torsion spring is provided on the second stepped surface and the stopper plate along the axial center line. The earphone adjustment structure according to Item 8. (Item 10) An ear-hanging type earphone, including an earphone body, an ear hook, and the earphone adjustment structure according to any one of Items 1 to 9. One end of the rotating shaft is connected to the ear hook, and the fixed shaft sleeve is connected to the earphone body. The ear-hanging type earphone.

Claims

1. An earphone adjustment structure, comprising: The rotating shaft includes a sliding shaft sleeve and a fixed shaft sleeve. the rotating shaft has an axial center line, and one end of the rotating shaft along the axial center line is used for connecting to an ear hook of an earphone; The sliding shaft sleeve is fitted onto the rotating shaft and is rotatable relative to the rotating shaft around the axis line, The fixed shaft sleeve is fitted into the sliding shaft sleeve, and is slidable relative to the rotating shaft and the sliding shaft sleeve along the axis line, and can be held at a predetermined position along the axis line, and can rotate synchronously with the rotating shaft around the axis line along with the sliding shaft sleeve, and the fixed shaft sleeve is used to connect to an earphone body of the ear-hook type earphone. Earphone adjustment structure.

2. 2. The earphone adjustment structure according to claim 1, wherein the fixed shaft sleeve can slide along the axis line relative to the sliding shaft sleeve and the rotating shaft by a displacement of 0 mm to 2 mm.

3. 2. The earphone adjustment structure as claimed in claim 1, wherein the earphone adjustment structure further comprises a resistance ring, the resistance ring being fitted on an outer wall of the sliding shaft sleeve and abutting against an inner wall of the fixed shaft sleeve.

4. The earphone adjustment structure according to claim 3 , wherein the fixed shaft sleeve has an annular groove disposed around the axis line, and the resistance ring is locked in the annular groove.

5. A guide groove is provided on a side wall of the sliding shaft sleeve, a guide block is provided on an inner wall of the fixed shaft sleeve, and the guide block is slidably provided in the guide groove along the axis line, or 2. The earphone adjustment structure according to claim 1, wherein a guide block is provided on an outer wall of the sliding shaft sleeve, a guide groove is provided on a side wall of the fixed shaft sleeve, and the guide block is slidably provided in the guide groove along the axis line.

6. A position limiting groove is provided on an inner wall of the sliding shaft sleeve, the position limiting groove extending around the axis line is not connected to the opposing ends of the position limiting groove in the circumferential direction of the axis line, and a boss is provided on a side wall of the rotating shaft to be inserted into the position limiting groove, or 6. The earphone adjustment structure according to claim 1, wherein a position limiting groove is provided on a side wall of the rotating shaft, the gap between the opposing ends of the position limiting groove is not connected in the circumferential direction of the axis, and a boss is provided on an inner wall of the sliding shaft sleeve, the boss being inserted into the position limiting groove.

7. The earphone adjustment structure according to any one of claims 1 to 5, further comprising a stopper plate connected to the rotating shaft, a first step surface being formed on the rotating shaft, the first step surface and the stopper plate being arranged opposite each other along the axial line with a gap therebetween, and both ends of the sliding shaft sleeve along the axial line abutting against the first step surface and the stopper plate, respectively.

8. 6. The earphone adjustment structure according to claim 1, further comprising a torsion spring disposed within the sliding shaft sleeve, fitted to the rotating shaft, and arranged to provide a restoring force to the sliding shaft sleeve.

9. The earphone adjustment structure of claim 8, further comprising a stopper plate connected to the rotating shaft, a second step surface being formed on the rotating shaft, the second step surface and the stopper plate being arranged opposite each other and spaced apart along the axial line, and the torsion spring being arranged on the second step surface and the stopper plate along the axial line.

10. An earphone comprising:

6. An earphone comprising an earphone body, an ear hook, and the earphone adjustment structure according to claim 1, wherein one end of the rotating shaft is connected to the ear hook and the fixed shaft sleeve is connected to the earphone body.

Images