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] The present application relates to the technical field of earphones, and more particularly to an earphone adjustment structure and an ear-hook type earphone. [Background technology]

[0002] With the progress of society, earphones have become widely used in people's work and life, and in order to meet people's demands for earphones, various earphones have appeared, such as headphones, ear-hook earphones, neck-hanging earphones, etc. Here, ear-hook earphones refer to earphones that have decorations added to the sides of the earphones to assist hanging, so that they can be worn and used conveniently, and ear-hook earphones have good wearing stability and are therefore suitable for various exercise scenes.

[0003] However, the shape and size of each person's ears are all different, and generally, the ear sizes of male and female users vary greatly. Conventional earphones are mainly of fixed size and have a single size. As a result, when some users wear earphones, the sound outlet of the earphone body cannot be properly aligned with the user's ear canal, which affects the user's experience. Summary of the Invention

[0004] The purpose of the embodiments of the present application is to provide an earphone adjustment structure and an earphone that solves the technical problem that, since the earphones in the prior art are mainly of fixed size and have a single size, some users cannot properly align the sound emission hole of the earphone body with the user's ear canal when wearing the earphones.

[0005] To achieve the above objectives, 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 axial center line, and one end of the rotating shaft along the axial center line is used to connect 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 can slide relative to the rotating shaft and the sliding shaft sleeve along the axial line, and can be held in a predetermined position along the axial line, and can rotate synchronously with the rotating shaft around the axial line together with the sliding shaft sleeve, and the fixed shaft sleeve is used to connect to the earphone body of the earhook-type earphone.

[0006] Preferably, the displacement by which the fixed shaft sleeve can slide along the axis relative to the sliding shaft sleeve and the rotating shaft 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 axis, and the resistance ring is engaged within the annular groove.

[0009] Preferably, 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 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 provided slidably in the guide groove along the axis.

[0010] Preferably, a position limiting groove extending around the axis is provided on the inner wall of the sliding shaft sleeve, and the opposing ends of the position limiting groove are not connected to each other in the circumferential direction of the axis, and a boss is provided on the side wall of the rotating shaft to be 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, and the distance between the opposing ends of the position limiting groove is not connected in the circumferential direction of the axis, and a boss to be inserted into the position limiting groove is provided on the inner wall of the sliding shaft sleeve.

[0011] Preferably, the earphone adjustment structure further includes a stop plate connected to the rotating shaft, a first step surface formed on the rotating shaft, the first step surface and the stop plate being spaced apart and facing each other along the axis, and both ends of the sliding shaft sleeve along the axis abut against the first step surface and the stop plate, respectively.

[0012] Preferably, the earphone adjustment structure further includes a torsion spring provided within the sliding shaft sleeve, fitted onto 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 step surface is formed on the rotating shaft, the second step surface and the stop plate are arranged opposite each other and spaced apart along the axis, and the torsion spring is arranged on the second step surface and the stop plate along the axis.

[0014] An embodiment of the present application further provides an ear-hook type earphone, comprising an earphone body, an ear hook, and the earphone adjustment structure described in any one of the above paragraphs, wherein one end of the rotating shaft is connected to the ear hook, and the fixed shaft sleeve is connected to the earphone body.

[0015] Compared to the prior art, the earphone adjustment structure and ear-hook type earphone according to the present application have one end of the rotating shaft connected to the ear hook and the fixed shaft sleeve connected to the earphone body. When the fixed shaft sleeve slides along the axis relative to the sliding shaft sleeve and the rotating shaft, the fixed shaft sleeve moves the earphone body closer to or farther away from the ear hook along the axis, adjusting the dimensions of the entire ear-hook type earphone. Since the sliding shaft sleeve can be held in a predetermined position along the axis, the position of the earphone body can be determined. When the fixed shaft sleeve and the sliding shaft sleeve rotate along the axis relative to the rotating shaft, the fixed shaft sleeve rotates the earphone body relative to the ear hook, adjusting the deflection angle of the earphone body's axis relative to the ear hook. The earphone adjustment structure of the present application has sliding and rotating adjustment functions, and allows the size of the hook-and-ear earphone to be adjusted, so that when wearing and using it, the user can adjust the position of the earphone body according to their own needs, and the sound emission hole in the earphone body can be better aligned with the user's ear canal, so that the earphone body fits the user's ear better, improving the user experience and adapting to more users, which is beneficial for increasing the application range of the earphone. [Brief explanation of the drawings]

[0016] In order to more clearly explain the technical solutions of the embodiments of the present application, the following briefly introduces drawings necessary for explaining the embodiments or prior art. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can further obtain other drawings based on these drawings without any creative work. [Figure 1] 1 is a schematic diagram of the three-dimensional structure of an earphone according to an embodiment of the present application. [Figure 2] 1 is a right side view of an earphone adjusting structure according to an embodiment of the present application; [Figure 3] FIG. 3 is a schematic cross-sectional view of the structure taken along the AA direction in FIG. 2. [Figure 4] FIG. 3 is a schematic cross-sectional view of the structure taken along the line BB in FIG. 2. [Figure 5] 1 is an exploded structural view of an earphone adjustment structure according to an embodiment of the present application; [Figure 6] 1 is a partial perspective structural schematic diagram of a sliding shaft sleeve according to an embodiment of the present application, in which a fixed shaft sleeve and a decorative cover are omitted. [Explanation of symbols]

[0017] 100: earphone adjustment structure, 200: earphone main body, 300: ear hook, 10: rotating shaft, a: axial wire, 11: first connecting end, 12: second connecting end, 121: rectangular locking portion, 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 DETAILED DESCRIPTION OF THE INVENTION

[0018] In order to make the above-mentioned objects, features and advantages of the present application more clearly understandable, 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 will be 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, so the present application is not limited to the specific examples disclosed below.

[0019] In the description of this application, orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are based on orientations or positional relationships shown in the drawings, and are provided solely for the convenience and simplification of the description of this application. They do not indicate or imply that a specified device or element must have a particular orientation or be configured and operated in a particular orientation, and should not be construed as a limitation on the application.

[0020] Additionally, the terms "first" and "second" are for descriptive purposes only and should not be understood as indicating or implying relative importance or the number of technical features shown. Thus, a feature qualified as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of this application, "plurality" means at least two, e.g., two, three, etc., unless otherwise specified.

[0021] In this application, unless otherwise specified, the terms "attached," "coupled," "connected," "fixed," etc. should be understood in a broad sense, and may mean, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, an internal communication between two elements, or an interactive relationship between two elements. Those skilled in the art can understand the specific meanings of the above terms in this application according to specific circumstances.

[0022] Unless otherwise specified, in this application, a first feature being "above" or "below" a second feature may mean that the first feature and the second feature are in direct contact with each other, or that the first feature and the second feature are in indirect contact with each other via an intermediate medium. Furthermore, a first feature being "above," "above," and "on the upper surface" of a second feature may only mean that the first feature is directly above or diagonally above the second feature, or that the horizontal height of the first feature is higher than that of the second feature. A first feature being "below," "below," and "on the lower surface" of a second feature may only mean that the first feature is directly below or diagonally below the second feature, or that the horizontal height of the first feature is lower than that of the second feature.

[0023] It should be noted that when an element is referred to as being "fixed" or "mounted" on another element, it may be directly located on the other element, or there may be intervening elements present. When an element is referred to as being "connected" to another element, it may be directly connected to the other element, or there may also be intervening elements present. The terms "vertical," "horizontal," "up," "down," "left," "right," and similar terms used herein are for illustrative purposes only and do not represent the only embodiment.

[0024] 1 to 6, an earphone adjustment structure 100 according to an embodiment of the present invention will be described for adjusting the size of an ear-hook type earphone.

[0025] 1 to 3, 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 axial line a, one end of the sliding shaft sleeve 20 along the axial line a is used to connect to the ear hook 300 of the earhook-type earphone, the sliding shaft sleeve 20 is fitted onto the rotating shaft 10 and can rotate relative to the rotating shaft 10 around the axial line a, the fixed shaft sleeve 30 is fitted onto the sliding shaft sleeve 20 and can slide relative to the rotating shaft 10 and the sliding shaft sleeve 20 along the axial line a and can be held in a predetermined position along the axial line a, the fixed shaft sleeve 30 can rotate synchronously with the rotating shaft 10 around the axial line a together with the sliding shaft sleeve 20, and the fixed shaft sleeve 30 is used to connect to the earphone body 20 of the earhook-type earphone.

[0026] In the examples of the present application, "along the axis line a" means along the axial direction of the axis line a, i.e., along the extension direction of the axis line a, and "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, and one end of the rotating shaft 10 along the axial line a is fixedly connected to one end of the ear hook 300 by passing through one end of the sliding shaft sleeve 20 and the fixed shaft sleeve 30, and both the sliding shaft sleeve 20 and the fixed shaft sleeve 30 are arranged 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 about the axis a relative to the rotating shaft 10, but is unable to slide along the axis a relative to the rotating shaft 10. The fixed shaft sleeve 30 is slidable along the axis a relative to the sliding shaft sleeve 20 and the rotating shaft 10, but is unable to rotate relative to the sliding shaft sleeve 20, and when the fixed shaft sleeve 30 slides along the axis a relative to the rotating shaft 10 and the sliding shaft sleeve 20, the fixed shaft sleeve 30 slides the earphone body 200 synchronously along the axis a, causing the earphone body 200 to move closer to or away from the ear hook 300 along the axis line a, thereby adjusting the overall dimensions of the earhook-type earphone to fit 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 a, the fixed shaft sleeve 30 rotates the earphone main body 200 relative to the ear hook 300, and by adjusting the deflection angle of the axis a of the earphone main body 200 relative to the ear hook 300, the earphone main body 200 can fit well in the user's ear when worn and used.

[0029] When the fixed shaft sleeve 30 can slide to a predetermined position along the axis line a, the fixed shaft sleeve 30 can be held in a predetermined position along the axis line a, determining the position of the earphone main body 200 on the axis line a and preventing the earphone main body 200 from swinging up and down relative to the ear hook 300.

[0030] Compared to the prior art, the earphone adjustment structure 100 of the present application connects one end of the rotating shaft 10 to the earhook 300, thereby connecting the fixed shaft sleeve 30 to the earphone main 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 moves the earphone main body 200 toward or away from the earhook 300 along the axis line a, thereby adjusting the dimensions of the entire earhook-type earphone; because the sliding shaft sleeve 20 can be held in a predetermined position along the axis line a, the position of the earphone main body 200 can be determined; and 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 main body 200 relative to the earhook 300, thereby adjusting the deflection angle of the earphone main body 200 relative to the earhook 300 on the axis line a. The earphone adjustment structure 100 of the present application has sliding and rotating adjustment functions, and allows the size of the hook-and-ear earphone to be adjusted. This allows the user to adjust the position of the earphone main body 200 according to their own needs when wearing and using it, and the sound emission hole in the earphone main body 200 can be better aligned with the user's ear canal, allowing the earphone main body 200 to fit the user's ear better, improving the user's usage experience and adapting to more users, which is beneficial for increasing the application range of the earphone.

[0031] In some embodiments, as shown in FIG. 1, the rotating shaft 10 has two ends along its axial line a, which are a first connecting end 11 and a second connecting end 12, and the first connecting 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 open adjacent to the first connecting end 11, both ends of the fixed shaft sleeve 30 are open, and the side walls of the fixed shaft sleeve 30 along its axial line a are connected to the earphone body 200.

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

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

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

[0035] Specifically, the resistance ring 40 is fixedly fitted onto the outer wall of the sliding shaft sleeve 20 and is located close to the first connecting end 11, preventing it from being displaced relative to the sliding shaft sleeve 20 along the axial line 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, and 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, but is not limited to, silicone rubber, rubber, etc. The material of the resistance ring 40 is made of silicone rubber, rubber, etc., so that the resistance ring 40 has good elasticity, and thus can effectively ensure that the resistance ring 40 is stably abutted between the sliding shaft sleeve 20 and the fixed shaft sleeve 30, but does not generate resistance that makes it difficult for the fixed shaft sleeve 30 to slide against the fixed shaft sleeve 30.

[0037] In the above technical solution, the resistance ring 40 is fitted onto the outer wall of the sliding shaft sleeve 20 and abuts against the inner wall of the sliding shaft sleeve 20, thereby increasing the resistance of the fixed shaft sleeve 30 sliding along the axial line a. Within a certain range, the fixed shaft sleeve 30 can remain at any position due to the resistance of the resistance ring 40, thereby realizing the positioning of the earphone body 200 on the axial line a and effectively preventing the earphone body 200 from loosening. Furthermore, because the fixed shaft sleeve 30 can remain at any position due to 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 their own needs, i.e., the size of the earphone can be more accurately adjusted, and the earphone can better meet the needs of users.

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

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

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

[0041] In one embodiment of the present application, referring to Figures 3 and 6 together, a guide groove 22 is provided on the side wall of the sliding shaft sleeve 20, and 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 axial line a.

[0042] Specifically, the guide block 31 extends along the axial line a, protrudes from the inner wall surface of the fixed shaft sleeve 30, and is located close to the first connecting end 11; the guide groove 22 also extends along the axial line a, and penetrates the end of the sliding shaft sleeve 20 close to the second connecting end 12; the guide block 31 is inserted into the guide groove 22 along the radial direction of the axial line a; when the fixed shaft sleeve 30 slides along the axial line a, the guide block 31 slides within the guide groove 22 along the axial line a; and the guide block 31 and the guide groove 22 engage along the circumferential direction of the axial line a, so that the guide block 31 cannot move in the guide groove 22 around the axial line a.

[0043] The guide block 31 is slidably mounted in the guide groove 22 along the axis a. When the fixed shaft sleeve 30 slides along the axis a, the guide block 31 slides in the guide groove 22 to guide the fixed shaft sleeve 30, which is advantageous to improving the sliding stability of the fixed shaft sleeve 30. At the same time, the guide block 31 and the guide groove 22 are engaged in the circumferential direction of the axis a, which prevents the guide block 31 from moving in the guide groove 22 around the axis a. This ensures that the fixed shaft sleeve 30 and the sliding shaft sleeve 20 are engaged in the circumferential direction of the axis a, preventing relative rotation between the fixed shaft sleeve 30 and the sliding shaft sleeve 20. The fixed shaft sleeve 30 can only slide relative to the sliding shaft sleeve 20 along the axis a, but cannot rotate relative to the sliding shaft sleeve 20 around the axis a. That is, when the fixed shaft sleeve 30 rotates, the sliding shaft sleeve 20 rotates synchronously.

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

[0045] In one embodiment of the present application, referring to FIGS. 2 and 4 together, 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 opposing ends of the position limiting groove 26 are not connected to each other 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 so 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 a, the boss 16 moves within the position limiting groove 26 around the axis 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 that the boss 16 can move 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 limits the rotation range of the sliding shaft sleeve 20 relative to the rotating shaft 10, and limits the deflection angle of the earphone body 200 relative to the ear hook 300. Furthermore, the rotating shaft 10 and the sliding shaft sleeve 20 are engaged along the axial line a, 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] As can be understood, in other embodiments, a position limiting groove 26 extending around the axis a is provided on the side wall of the rotating shaft 10, and the distance between the opposing ends of the position limiting groove 26 in the circumferential direction of the axis a is not connected, and a boss 16 for insertion 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 adjustment structure 100 further includes a stop plate 50, which is connected to the rotating shaft 10, and which has a first step surface 13 formed on the rotating shaft 10. The first step surface 13 and the stop plate 50 are arranged opposite each other along the axis a with a gap therebetween, and both ends of the sliding shaft sleeve 20 along the axis a abut against the first step surface 13 and the stop plate 50, respectively.

[0051] Specifically, the stop plate 50 is connected to the second connecting end 12 of the rotating shaft 10, the first step surface 13 is provided close to the first connecting end 11, the sliding shaft sleeve 20 is provided along the axial line a between the first step surface 13 and the stop plate 50, one end of the sliding shaft sleeve 20 abuts against the first step surface 13, and the other end of the sliding shaft sleeve 20 abuts against the stop plate 50.

[0052] In the above technical solution, by abutting both ends of the sliding shaft sleeve 20 along the axial line a against the first step surface 13 and the stop plate 50, respectively, the sliding of the sliding shaft sleeve 20 relative to the rotating shaft 10 along the axial line a is restricted, and the sliding shaft sleeve 20 can rotate relative to the rotating shaft 10 around the axial line a but cannot slide relative to the rotating shaft 10 along the axial line a.

[0053] In some embodiments, the stop plate 50 is provided with a first fixing hole 51, the second connecting end 12 is provided with a second fixing hole 122, and the earphone adjustment structure 100 further includes a fastener 60 that passes through the first fixing hole 51 and the second fixing hole 122 to connect the stop plate 50 to the second connecting end 12.

[0054] Preferably, the fasteners 60 are screws, bolts, etc., and the first fixing holes 51 and / or the second fixing holes 122 are threaded holes.

[0055] In other embodiments, the stop plate 50 may be connected to the second connecting end 12 by adhesive, engagement, fastening, or other methods.

[0056] In one embodiment of the present application, referring to both FIG. 3 and FIG. 5 , the earphone adjustment structure 100 further includes a torsion spring 70 disposed within the sliding shaft sleeve 20, fitted onto 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, and the other end of the torsion spring 70 is connected to the sliding shaft sleeve 20. When worn, the torsion spring 70 provides a restoring force to the sliding shaft sleeve 20, causing the sliding shaft sleeve 20 to tend to return to its original position due to the action of the restoring force, and further causing the fixed shaft sleeve 30 and the earphone main body 200 to tend to return to their original positions, so that the earphone main body 200 receives force when worn and can fit into the user's ear. Here, the magnitude of the restoring force may be determined experimentally so as to meet the needs but not to compress the user's ear or cause discomfort to the user's ear.

[0058] In one embodiment of the present application, a rectangular locking portion 121 is provided at the second connecting 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 in 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, i.e., when the rectangular locking portion 121 is drilled into the rectangular hole 71, the torsion spring 70 and the rotating shaft 10 are fixed in the circumferential direction, and the torsion spring 70 cannot rotate around the axial line a relative to the rectangular locking portion 121. The outer wall of the sliding shaft sleeve 20 is provided with a locking groove 23, which communicates with the through hole 24. The locking legs 72 extend through the through hole 24 into the locking groove 23 and abut against the side wall of the locking groove 23, thereby realizing circumferential fixation of the torsion spring 70 and the sliding shaft sleeve 20. When the sliding shaft sleeve 20 rotates around the axial line a, the torque of the torsion spring 70 is increased, providing a return force for the return of the sliding shaft sleeve 20.

[0060] Specifically, the torsion spring 70 has multiple operating states. When the rotating shaft 10 and the sliding shaft sleeve 20 are positioned in their initial positions relative to each other, 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 relative to each other, the torsion state of the torsion spring 70 increases and the torsional force provided increases. In this case, the earphone body 200 can be adaptively fitted to the user's ear due to the action of the torsional force. When the external force applied to the rotating shaft 10 and the sliding shaft sleeve 20 is removed, the torsional force of the torsion spring 70 acts as a restoring force, restoring the rotating shaft 10 and the sliding shaft sleeve 20 to their original positions.

[0061] In other embodiments, an elastic piece or other member capable of providing 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 step surface 14 is formed on the rotating shaft 10, the second step surface 14 and the stop plate 50 are spaced apart along the axial line a, and a torsion spring 70 is provided on the second step surface 14 and the stop plate 50 along the axial line a.

[0063] Specifically, the second step surface 14 is provided close to the second connecting end 12, and the torsion spring 70 is provided between the second step surface 14 and the stop plate 50 along the axial line a, thereby ensuring that the torsion spring 70 is stably fitted to the rotating shaft 10 and preventing the torsion spring 70 from detaching from the rotating shaft 10 along the axial line a.

[0064] In one embodiment of the present application, referring to Figures 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, and the first wiring hole 15, the second wiring hole 25 and the third wiring hole 32 are connected in sequence.

[0065] The first wiring hole 15 penetrates the first connection end 11 and the side wall of the rotating shaft 10, and the first wiring hole 15, the second wiring hole 25 and the third wiring hole 32 are perforated with conductive members for electrically connecting elements in the ear hook 300 and elements in the earphone main body 200. For example, the conductive member is a conductor, one end of which is electrically connected to the battery inside the ear hook 300 and the other end which penetrates the first wiring hole 15, the second wiring hole 25 and the third wiring hole 32 in order and is electrically connected to the circuit board of the earphone main body 200.

[0066] In one embodiment of the present application, referring to both FIG. 3 and FIG. 5 , the earphone adjustment structure 100 further includes a decorative cover 80 sealed to the end of the fixed shaft sleeve 30 adjacent to the second connecting end 12 so as to cover the components within the fixed shaft sleeve 30.

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

[0068] The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention. (Other possible items) (Item 1) An earphone adjustment structure, 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 to connect 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 axial line, and can be held at a predetermined position along the axial line, and can rotate synchronously with the rotating shaft around the axial line along with the sliding shaft sleeve, and the fixed shaft sleeve is used to connect to the earphone body of the earhook-type earphone. Earphone adjustment structure. (Item 2) The earphone adjustment structure described in item 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. (Item 3) Item 1. The earphone adjustment structure according to item 1, further comprising a resistance ring, the resistance ring being fitted on the outer wall of the sliding shaft sleeve and abutting against the inner wall of the fixed shaft sleeve. (Item 4) Item 4. The earphone adjustment structure according to item 3, wherein the fixed shaft sleeve has an annular groove formed around the axial center line, and the resistance ring is locked in the annular groove. (Item 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 The earphone adjustment structure described in item 1, wherein 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 line. (Item 6) A position limiting groove is provided on an inner wall of the sliding shaft sleeve, extending around the axis line, and the opposing ends of the position limiting groove are not connected to each other in the circumferential direction of the axis line, and a boss is provided on a side wall of the rotating shaft, which is inserted into the position limiting groove, or The earphone adjustment structure of any one of items 1-5, wherein a position limiting groove extending around the axis is provided on the side wall of the rotating shaft, the opposing ends of the position limiting groove are not connected in the circumferential direction of the axis, and a boss inserted into the position limiting groove is provided on the inner wall of the sliding shaft sleeve. (Item 7) The earphone adjustment structure described in any one of items 1-5 further includes a stopper plate connected to the rotating shaft, a first step surface formed on the rotating shaft, the first step surface and the stopper plate facing each other along the axial line with a gap between them, and both ends of the sliding shaft sleeve along the axial line abutting against the first step surface and the stopper plate, respectively. (Item 8) Item 6. The earphone adjustment structure of any one of items 1-5, further comprising a torsion spring provided within the sliding shaft sleeve, fitted onto the rotating shaft, and arranged to provide a restoring force to the sliding shaft sleeve. (Item 9) The earphone adjustment structure described in item 8 further includes a stopper plate connected to the rotating shaft, a second step surface is formed on the rotating shaft, the second step surface and the stopper plate are arranged opposite each other and spaced apart along the axial line, and the torsion spring is arranged on the second step surface and the stopper plate along the axial line. (Item 10) An ear-hook type earphone, An earhook-type earphone comprising an earphone main body, an ear hook, and the earphone adjustment structure described in any one of items 1 to 9, wherein one end of the rotating shaft is connected to the ear hook and the fixed shaft sleeve is connected to the earphone main body.

Claims

1. An earphone adjustment structure, 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 to connect 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 axial line, and can be held at a predetermined position along the axial line, and can rotate synchronously with the rotating shaft around the axial line along with the sliding shaft sleeve, and the fixed shaft sleeve is used to connect to the earphone body of the earhook-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 according to claim 1, further comprising a resistance ring, the resistance ring being fitted on the outer wall of the sliding shaft sleeve and abutting against the 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 formed around the axis, 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 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 line.

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

7. The earphone adjustment structure of any one of claims 1 to 5, further comprising a stopper plate connected to the rotating shaft, wherein a first step surface is formed on the rotating shaft, the first step surface and the stopper plate are arranged opposite each other along the axial line with a gap therebetween, and both ends of the sliding shaft sleeve along the axial line abut 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 provided within the sliding shaft sleeve, fitted onto 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, wherein a second step surface is formed on the rotating shaft, the second step surface and the stopper plate are arranged opposite each other and spaced apart along the axial line, and the torsion spring is arranged on the second step surface and the stopper plate along the axial line.

10. An ear-hook type earphone, 6. An ear-hook type earphone comprising: an earphone main 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 main body.

Images