Ear clamping type earphone

Abstract

The invention belongs to the field of earphones, and discloses an ear clamping type earphone, which comprises a function part, a clamping part and a rotating shaft mechanism, and is characterized in that the function part comprises a first shell; the clamping part comprises a second shell; and the first shell and the second shell are rotationally connected through the rotating shaft mechanism and are used for adjusting and fixing an included angle between the functional part and the clamping part so as to form a clamping space for clamping ears. The rotating shaft mechanism rotates to realize deformation of the earphone and clamp the ear, the rotating shaft mechanism can stop at any angle and fix the clamping angle, after wearing, the rotating shaft mechanism does not continuously apply pressure to the auricle, the wearing comfort is better, the problem of wearing comfort of the earphone can be solved, and the earphone is suitable for different wearing crowds.

Description

Technical Field

[0001] This invention relates to the field of headphone technology, and more particularly to a clip-on headphone. Background Art

[0002] With the development of electronic devices, smartphones, tablets, and other electronic products have become widely used in people's daily lives. Wireless headphones, as an important accessory for these products, are also becoming increasingly common. Existing headphone types include in-ear, semi-in-ear, earbud, ear-hook, and clip-on headphones, each with its own advantages. Clip-on headphones are mostly open-back headphones (the headphone body does not extend into the ear canal), offering advantages such as not hurting the ears, not damaging hearing, and being comfortable to wear.

[0003] There are many ways that clip-on headphones hold the ear in place. Currently, the most common clip-on headphones on the market mainly use material deformation to hold the ear in place and prevent it from falling out. However, using material deformation to hold the ear in place can cause ear pain due to the continuous clamping force applied to the ear, especially for people with thicker earlobes, where the clamping force is greater and the ear pain is more pronounced. Summary of the Invention

[0004] The purpose of this invention is to provide an ear clip-on headphone that can solve the problem of headphone wearing comfort and is suitable for different wearers.

[0005] The technical solution provided by this invention is as follows:

[0006] An ear-clip type earphone, comprising:

[0007] Functional components, including a first housing;

[0008] The clamping part includes a second housing;

[0009] A rotating shaft mechanism is provided, in which the first housing and the second housing are rotatably connected, for adjusting and fixing the angle between the functional part and the clamping part to form a clamping space for clamping the ear.

[0010] In some embodiments, the functional unit further includes a first bracket fixedly disposed within the first housing;

[0011] The clamping part further includes a second bracket fixedly disposed within the second housing;

[0012] The second bracket is rotatably connected to the first bracket via the rotating shaft mechanism.

[0013] In some embodiments, the rotating shaft mechanism includes a rotating shaft and a roll, the rotating shaft passing through the first bracket and having its two ends rotatably connected to the second bracket, the roll being fixed inside the first bracket and wound around the rotating shaft, the inner wall of the roll contacting the outer wall of the rotating shaft, and the friction between the roll and the rotating shaft forming rotational damping.

[0014] In some embodiments, the first bracket is provided with a stepped hole, the stepped hole including a first through hole and a second through hole, the diameter of the first through hole being smaller than the diameter of the second through hole, the roll being disposed in the second through hole, and the rotating shaft passing through the center of the first through hole and the roll.

[0015] In some embodiments, the inner wall of the first through hole is provided with a protrusion, and the outer wall of the rotating shaft is provided with a recess. The recess cooperates with the protrusion to limit the rotation angle of the rotating shaft relative to the first bracket.

[0016] In some embodiments, the first housing is provided with a first limiting part, and the second housing is provided with a second limiting part. The first limiting part and the second limiting part cooperate to limit the rotation angle of the second housing relative to the first housing.

[0017] In some embodiments, the roll includes a fixing part and a winding part, a first end of the winding part is connected to the fixing part, a second end of the winding part is spaced from the first end of the winding part to form an opening, the fixing part is fixed in the first bracket, and the winding part is wound on the rotating shaft;

[0018] When changing from a non-wearing state to a wearing state, the angle between the clamping part and the functional part decreases, the spacing of the openings increases, and the friction between the roll and the rotating shaft decreases.

[0019] When changing from the wearing state to the non-wearing state, the angle between the clamping part and the functional part increases, the spacing of the openings decreases, and the friction between the roll and the rotating shaft increases.

[0020] In some embodiments, the fixing part is disposed within the first bracket facing the first housing, and the opening is disposed below the fixing part; or;

[0021] The fixing part is disposed inside the first bracket facing the second housing, and the opening is disposed above the fixing part.

[0022] In some embodiments, the rotating shaft mechanism includes a rotating shaft, a cam, and a shift pin. The second housing is rotatably connected to the first housing via the rotating shaft. The cam is sleeved on the rotating shaft and fixedly connected to the first housing. The cam has multiple shift teeth. The shift pin is fixedly disposed inside the second housing. When the shift pin engages with any shift tooth, the rotation angle between the second housing and the first housing is adjusted.

[0023] In some embodiments, an elastic mechanism is also included, which is movably disposed on the second housing. One end of the elastic mechanism abuts against the second housing, and the other end abuts against the shift pin, so that the shift pin is movable along the length direction of the second housing.

[0024] In some embodiments, the elastic mechanism includes a spring seat and a spring, the spring seat being movably disposed within the second housing, the spring being sleeved on the spring seat with one end abutting against the second housing, and the stop pin abutting against the spring seat.

[0025] In some embodiments, a plurality of gear teeth are arranged sequentially along the thickness direction of the cam, and the height of the plurality of gear teeth decreases sequentially along the thickness direction of the cam. The gear pin is movable along the width direction of the second housing. Moving the gear pin along the width direction of the second housing allows the gear pin to engage with different gear teeth to adjust the rotation angle between the second housing and the first housing.

[0026] In some embodiments, the side of the spring seat that abuts against the gear pin is provided with a plurality of recessed grooves along the width direction of the second housing, and the end of the gear pin is provided with a mating part that cooperates with the recessed grooves. When the gear pin moves along the width direction of the second housing, the mating part can be located in different recessed grooves, and the gear pin is limited by the cooperation between the recessed grooves and the mating part.

[0027] In some embodiments, the plurality of gear teeth are arranged sequentially along the circumferential direction of the cam.

[0028] In some embodiments, the rotating shaft mechanism includes a rotating shaft, a worm, a worm wheel, and a cam rod. The second housing is rotatably connected to the first housing via the rotating shaft. The worm is rotatably disposed within the first housing. The worm wheel is sleeved on the rotating shaft and is rotatable relative to the rotating shaft. The worm wheel has teeth and grooves in its circumferential direction. The teeth mesh with the worm. The cam rod is fixedly disposed on the second housing and cooperates with the grooves.

[0029] In some embodiments, an elastic mechanism is also included, which is movably disposed on the second housing. One end of the elastic mechanism abuts against the second housing, and the other end is connected to the cam rod, so that the cam rod is movable along the length direction of the second housing.

[0030] In some embodiments, the elastic mechanism includes a spring seat and a spring, the spring seat being movably disposed within the second housing, the spring being sleeved on the spring seat with one end abutting against the second housing, and the cam rod being fixedly connected to the spring seat.

[0031] In some embodiments, a limiting groove is also provided on the outer circumference of the worm gear;

[0032] The teeth, the grooves, and the limiting grooves are arranged sequentially at intervals in a clockwise direction on the outer circumference of the worm gear;

[0033] When worn, the cam rod is located within the groove;

[0034] In the non-wearing state, the cam rod is located in the limiting groove. The first side wall of the limiting groove is inclined relative to the horizontal plane and has a pre-pressure on the cam rod, so that when the worm gear rotates, the second housing is always in a horizontal state.

[0035] In some embodiments, when the teeth on the worm gear move to the top of the worm, the cam rod is located at the top of the first sidewall, and when the teeth on the worm gear move to the bottom of the worm, the cam rod is located at the bottom of the first sidewall.

[0036] The technical advantages of this invention are as follows: the rotating mechanism enables the earphone to deform and clamp the ear. The rotating mechanism can stop and fix the clamping angle at any angle. After wearing, the rotating mechanism will not continuously apply pressure to the auricle, resulting in better wearing comfort. This invention can solve the problem of earphone wearing comfort and is suitable for different wearers. Attached Figure Description

[0037] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0038] Figure 1 This is a schematic diagram of the clip-on earphone provided in the embodiment of this application in the non-wearing state;

[0039] Figure 2 This is a schematic diagram of the clip-on earphone provided in the embodiment of this application in the wearing state;

[0040] Figure 3 This is a cross-sectional view of the clip-on earphone provided in Embodiment 1 of this application in the non-wearing state;

[0041] Figure 4 This is a cross-sectional view of the clip-on headphones provided in Embodiment 1 of this application in the wearing state;

[0042] Figure 5 This is a schematic diagram of the internal structure of the clip-on earphone provided in Embodiment 1 of this application in the non-wearing state;

[0043] Figure 6 This is a schematic diagram of the structure of the first bracket of the clip-on earphone provided in Embodiment 1 of this application;

[0044] Figure 7 This is a schematic diagram of the hinge mechanism of the clip-on earphone provided in Embodiment 1 of this application;

[0045] Figure 8 This is a schematic diagram of the structure of the clip-on earphone's roll plate provided in Embodiment 1 of this application;

[0046] Figure 9 This is another way of setting the winding mechanism of the clip-on headphones provided in Embodiment 1 of this application;

[0047] Figure 10 This is a schematic diagram of the clip-on earphone provided in Embodiment 2 of this application in the non-wearing state;

[0048] Figure 11 This is a cross-sectional view of the clip-on headphones provided in Embodiment 2 of this application in the wearing state;

[0049] Figure 12 This is a schematic diagram of the locking pin and elastic mechanism of the clip-on earphone provided in Embodiment 2 of this application;

[0050] Figure 13 This is a cross-sectional view of the clip-on earphone provided in Embodiment 3 of this application in the non-wearing state;

[0051] Figure 14 This is a schematic diagram of the cam rod and the limiting groove of the clip-on earphone provided in Embodiment 3 of this application;

[0052] Figure 15 This is a cross-sectional view of the clip-on headphones provided in Embodiment 3 of this application in the wearing state;

[0053] Figure 16 This is a schematic diagram of the cam rod and groove cooperation structure of the clip-on earphone provided in Embodiment 3 of this application;

[0054] Figure 17 This is a schematic diagram of the external structure of the clip-on earphone provided in Embodiment 3 of this application.

[0055] Description of Figure Numbers:

[0056] 10. Functional part; 11. First housing; 12. First bracket; 121. First through hole; 1211. Protrusion; 122. Second through hole; 13. Third bracket; 20. Clamping part; 21. Second housing; 211. Arc-shaped part; 22. Second bracket; 30. Rotating shaft mechanism; 31. Rotating shaft; 311. Recessed part; 32. Wrapper; 321. Fixing part; 322. Winding part; 3221. Opening; 33. Cam; 331. Gear tooth; 34. Gear pin; 341. Mating part; 35. Worm; 36. Worm wheel; 361. Tooth; 362. Groove; 363. Limiting groove; 3631. First side wall; 37. Cam rod; 38. Handle; 40. Elastic mechanism; 41. Spring seat; 411. Recessed groove; 42. Spring. Detailed Implementation

[0057] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0058] To keep the drawings concise, only the parts relevant to the invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of components with the same structure or function is shown schematically, or only one is labeled. In this document, "one" can mean not only "only one" but also "more than one".

[0059] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0060] It should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on the specific circumstances.

[0061] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0062] Example 1

[0063] like Figures 1 to 9 As shown, a clip-on earphone includes a functional part 10, a clamping part 20, and a rotating mechanism 30. The functional part 10 includes a first housing 11; the clamping part 20 includes a second housing 21; the first housing 11 and the second housing 21 are rotatably connected by the rotating mechanism 30, which is used to adjust and fix the angle between the functional part 10 and the clamping part 20 to form a clamping space for clamping the ear.

[0064] Specifically, the clip-on earphone in this embodiment is divided into two parts: a functional part 10 and a clamping part 20, which are connected together by a pivot mechanism 30. The functional part 10 is used to implement the earphone function. Various electronic components for implementing the earphone function are disposed within the first housing 11. The first housing 11 also has a speaker hole and a microphone hole; the speaker hole is used for sound playback, and the microphone hole is used for sound reception. The clamping part 20 is mainly used to clamp the earphone for wearing. The clip-on earphone can have two states: a non-wearing state and a wearing state. In the non-wearing state, such as... Figure 1 As shown, the portion connecting the first housing 11 and the second housing 21 is on the same plane as the second housing 21, and the second housing 21 is in a flattened state; in the wearing state, as... Figure 2 As shown, the second housing 21 rotates toward the first housing 11, and the second housing 21 is not in a flattened state. The portion connecting the first housing 11 and the second housing 21 is not on the same plane as the second housing 21. A clamping space for clamping the ear can be formed between the functional part 10 and the clamping part 20. When worn, the functional part 10 is located in front of the ear and close to the ear canal, and the clamping part 20 is located behind the ear, forming a clamping space for clamping the ear between the clamping part 20 and the functional part 10. Preferably, as shown... Figure 1 and Figure 2 As shown, the inner side of the second housing 21 is provided with a recessed arc-shaped part 211. When worn, after the second housing 21 is folded toward the first housing 11, an arc-shaped clamping space with a large inner opening and a small opening can be formed between the arc-shaped part 211 and the first housing 11 for clamping the auricle. This not only clamps more securely, but also better matches the shape of the ear and makes wearing more comfortable.

[0065] The second housing 21 of the clamping part 20 and the first housing 11 of the functional part 10 are rotatably connected by a rotating shaft mechanism 30. The rotating shaft mechanism 30 can change the angle between the second housing 21 and the first housing 11, that is, change the angle between the functional part 10 and the clamping part 20, so that the ear clip headphones can adapt to the ears of different wearers. In addition, the rotating shaft mechanism 30 can also fix the rotation angle, so that the clamping part 20 will not continuously apply pressure to the ears during the wearing process, and the wearing comfort is better.

[0066] In this embodiment, Figure 5As shown, the functional part 10 also includes a first bracket 12 fixedly disposed within the first housing 11; the clamping part 20 also includes a second bracket 22 fixedly disposed within the second housing 21; the second bracket 22 and the first bracket 12 are rotatably connected via a rotating shaft mechanism 30. The first bracket 12 is fixed within the first housing 11 by means of fitting or similar methods, and the second bracket 22 is fixed within the second housing 21 by means of fitting or similar methods. Of course, if the process allows, the first bracket 12 can also be integrally formed with the first housing 11, and the second bracket 22 can also be integrally formed with the second housing 21, that is, the first bracket 12 and the first housing 11 are one component, and the second bracket 22 and the second housing 21 are one component.

[0067] In this embodiment, Figure 3 and Figure 7 As shown, the rotating shaft mechanism 30 includes a rotating shaft 31 and a winding blade 32. The rotating shaft 31 passes through the first bracket 12 and its two ends are rotatably connected to the second bracket 22. The winding blade 32 is fixed inside the first bracket 12 and wound around the rotating shaft 31. The inner wall of the winding blade 32 contacts the outer wall of the rotating shaft 31, and the friction between the winding blade 32 and the rotating shaft 31 forms rotational damping. After installation, the rotating shaft 31 is placed inside the second housing 21. The second housing 21 can cover the rotating shaft, providing a shielding function and enhancing the appearance of the headphones. In addition, the second housing 21 can abut against the rotating shaft 31 to prevent the rotating shaft 31 from sliding along the axial direction.

[0068] The shrapnel 32 is fixed inside the first bracket 12, and the rotating shaft 31 can rotate inside the shrapnel 32. The second bracket 22 is fixed together with the rotating shaft 31 and can rotate together with the rotating shaft 31. The shrapnel 32 can hold the rotating shaft 31 tightly. The friction between the shrapnel 32 and the rotating shaft 31 achieves damping of the rotating shaft 31, thereby fixing the rotation angle of the second housing 21 relative to the first housing 11, so that the second housing 21 is maintained at the angle of clamping the ear. After wearing, the rotating shaft 31 will not continuously apply pressure to the auricle, thus solving the problem of headphone wearing comfort.

[0069] Furthermore, if Figure 6 As shown, the first bracket 12 has a stepped hole, which includes a first through hole 121 and a second through hole 122. The diameter of the first through hole 121 is smaller than the diameter of the second through hole 122. The coil 32 is disposed in the second through hole 122, and the rotating shaft 31 passes through the center of the first through hole 121 and the coil 32. The coil 32 is installed in the second through hole 122, and the inner diameter of the coil 32 is equal to or slightly smaller than the diameter of the first through hole 121, so that the outer wall of the rotating shaft 31 abuts against the inner wall of the coil 32 and forms rotational damping. The rotation angle of the second bracket 22 is fixed by the damping force, thereby fixing the rotation angle of the clamping part 20.

[0070] like Figure 6 As shown, the inner wall of the first through hole 121 is provided with a protrusion 1211, such as... Figure 7 As shown, the outer wall of the rotating shaft 31 has a recess 311, which cooperates with the protrusion 1211 to limit the rotation angle of the rotating shaft 31 relative to the first bracket 12. The cooperation between the recess 311 and the protrusion 1211 can limit the extreme rotation positions of the first bracket 12 and the clamping part 20. One extreme position of the clamping part 20 is the flat position (horizontal state), at which time the earphone is in a non-wearing state. The other extreme position can ensure that the earphone is clamped tightly to the ears of most people to prevent the earphone from falling off.

[0071] As a variation, besides setting a limit on the rotating shaft 31, a limit structure can also be set at a position far from the rotating shaft 31. The limit structure can be set between the first housing 11 and the second housing 21. The first housing 11 has a first limit part, and the second housing 21 has a second limit part. The first limit part and the second limit part cooperate to limit the rotation angle of the second housing 21 relative to the first housing 11. The first bracket 12 is fitted onto the first housing 11, and the second bracket 22 is fitted onto the second housing 21. By setting the limit structure between the first housing 11 and the second housing 21, the fitted first bracket 12 and the first housing 11 can be regarded as a single part, and the fitted second bracket 22 and the second housing 21 can also be regarded as a single part. The dimensional transmission chain is short, and the limit position is far from the axis, so the limit accuracy is higher and the angle error is smaller. In this embodiment, either of the above two limit methods can be selected, or both limit methods can be used together.

[0072] Preferably, if Figure 8 As shown, the roll 32 includes a fixing part 321 and a winding part 322. The first end of the winding part 322 is connected to the fixing part 321, and the second end of the winding part 322 is spaced from the first end of the winding part 322 to form an opening 3221. The fixing part 321 is fixed inside the first bracket 12, and the winding part 322 is wound on the rotating shaft 31. When changing from a non-wearing state to a wearing state, the angle between the clamping part 20 and the functional part 10 decreases, the distance between the opening 3221 increases, and the friction between the roll 32 and the rotating shaft 31 decreases. When changing from a wearing state to a non-wearing state, the angle between the clamping part 20 and the functional part 10 increases, the distance between the opening 3221 decreases, and the friction between the roll 32 and the rotating shaft 31 increases.

[0073] like Figure 4As shown, during the wearing process, that is, when changing from the non-wearing state to the wearing state, the rotating shaft 31 drives the clamping part 20 to rotate counterclockwise. The winding part 322 of the coil 32 tends to open under the friction of the rotating shaft 31, the opening 3221 on the winding part 322 becomes larger, the friction between the coil 32 and the rotating shaft 31 decreases, the rotation torque of the rotating shaft 32 is small, and the rotation damping of the clamping part 20 becomes smaller, making it easier for the clamping part 20 to rotate to the wearing state. During the process of removing the earphone, that is, when changing from the wearing state to the non-wearing state, the rotating shaft 31 drives the clamping part 20 to rotate clockwise, the opening 3221 on the winding part 322 becomes smaller, the friction between the rotating shaft 31 and the winding part 322 of the coil 32 increases, and the rotation damping of the clamping part 20 becomes larger.

[0074] The hinge in this embodiment can achieve the following effects: low damping during wearing, making it relatively convenient to wear; and stable wearing and less likely to fall off due to the relatively high damping when removing the earphones after wearing them.

[0075] To achieve the above-mentioned effect of the rotating shaft, the opening 3221 of the winding section 322 can be configured in the following two ways:

[0076] The first type, such as Figure 4 As shown, the fixing part 321 is disposed inside the first bracket 12 facing the first housing 11, and the opening 3221 is disposed below the fixing part 321; the second type, as Figure 9 As shown, the fixing part 321 is disposed inside the first bracket 12 facing the second housing 21, and the opening 3221 is disposed above the fixing part 321.

[0077] like Figure 4 As shown, in the first configuration, when the rotating shaft 31 rotates counterclockwise, the opening 3221 of the winding part 322 increases in size and the friction decreases under the frictional force of the rotating shaft 31. Conversely, when the earphone is removed, the rotating shaft 31 rotates clockwise, the opening 3221 decreases in size and the friction increases.

[0078] like Figure 9 As shown, in the second configuration, when the rotating shaft 31 rotates counterclockwise, the opening 3221 of the winding part 322 increases in size and the friction decreases under the frictional force of the rotating shaft 31. Conversely, when the earphone is removed, the rotating shaft 31 rotates clockwise, the opening 3221 decreases in size, and the friction increases.

[0079] Example 2

[0080] A type of clip-on earphone, such as Figures 10 to 12As shown, the device includes a functional unit 10, a clamping unit 20, and a rotating shaft mechanism 30. The functional unit 10 includes a first housing 11; the clamping unit 20 includes a second housing 21. The first housing 11 and the second housing 21 are rotatably connected by the rotating shaft mechanism 30, which is used to adjust and fix the angle between the functional unit 10 and the clamping unit 20 to form a clamping space for clamping the ear. The difference between this embodiment and Embodiment 1 lies in the structure of the rotating shaft mechanism 30. Other structures are the same as in Embodiment 1, and the similarities between this embodiment and Embodiment 1 will not be described again.

[0081] In this embodiment, Figure 10 and Figure 11 As shown, the rotating shaft mechanism 30 includes a rotating shaft 31, a cam 33, and a stop pin 34. The second housing 21 is rotatably connected to the first housing 11 via the rotating shaft 31. The cam 33 is sleeved on the rotating shaft 31 and fixedly connected to the first housing 11. The cam 33 has multiple stop teeth 331. The stop pin 34 is fixedly disposed inside the second housing 21. When the stop pin 34 engages with any stop tooth 331, the rotation angle between the second housing 21 and the first housing 11 is adjusted. The cam 33 has multiple stop teeth 331. When the stop pin 34 engages with different stop teeth 331, the rotation angle of the second housing 21 can be adjusted to accommodate different wearers.

[0082] Preferably, if Figure 10 As shown, it also includes an elastic mechanism 40, which is movably mounted on the second housing 21. One end of the elastic mechanism 40 abuts against the second housing 21, and the other end abuts against the stop pin 34, allowing the stop pin 34 to move along the length direction of the second housing 21. The length direction of the second housing 21 is... Figure 10 The direction indicated by the middle arrow a. The stop pin 34 is connected to the second housing 21 through the elastic mechanism 40. In the wearing state, under the action of the elastic mechanism 40, the stop pin 34 is kept in a locked state with the stop tooth 331 to fix the rotation angle of the second housing 21, so that the clamping part 20 is kept in a clamping state and clamps the user's auricle. When an external force is applied to the stop pin 34, the stop pin 34 overcomes the elastic force of the elastic mechanism 40, and the stop pin 34 can be released from the locked state with the stop tooth 331. The clamping part 20 can change from the wearing state to the non-wearing state, realizing the storage and wearing of the headphones.

[0083] like Figure 10 and Figure 12 As shown, the elastic mechanism 40 includes a spring seat 41 and a spring 42. The spring seat 41 is movably mounted on the second housing 21, and the spring 42 is sleeved on the spring seat 41 with one end abutting against the second housing 21. A stop pin 34 abuts against the spring seat 41. A mounting groove can be provided inside the second housing 21, and the spring seat 41 is movably mounted in the mounting groove. The spring seat 41 can limit the movement of the spring 42 when it extends or retracts.

[0084] In one implementation, such as Figure 10 As shown, multiple gear teeth 331 are arranged sequentially along the thickness direction of the cam 33, and the height of the multiple gear teeth 331 decreases sequentially along the thickness direction of the cam 33. The gear pin 34 is movable along the width direction of the second housing 21. Moving the gear pin 34 along the width direction of the second housing 21 allows the gear pin 34 to engage with different gear teeth 331 to adjust the angle between the second housing 21 and the first housing 11.

[0085] The thickness direction of cam 33 is Figure 10 As indicated by the middle arrow b, the thickness direction of the cam 33 is the same as the width direction of the second housing 21. Figure 10 As shown, three gear teeth 331 are provided along the thickness direction of the cam 33, with the height of the gear teeth 331 decreasing sequentially. The gear pin 34 is movable along the width direction of the second housing 21. When the gear pin 34 moves to the corresponding first gear tooth, the clamping part 20 is rotated counterclockwise to engage the gear pin 34 with the first gear tooth. When the clamping space needs to be increased, the gear pin 34 can be moved along the width direction of the second housing 21 to engage with the second gear tooth. When the clamping space needs to be further increased, the gear pin 34 can be moved further to engage with the third gear tooth. In this embodiment, multiple gears are designed on the cam 33. By toggling the gear pin 34 with a toggle switch, the gear pin 34 can engage with the gear teeth 331 of different gears, thus adapting to different wearers.

[0086] Furthermore, if Figure 12 As shown, the side of the spring seat 41 that abuts against the gear pin 34 is provided with multiple recessed grooves 411 along the width direction of the second housing 21. The end of the gear pin 34 is provided with a mating part 341 that engages with the recessed grooves 411. When the gear pin 34 moves along the width direction of the second housing 21, the mating part 341 can be located in different recessed grooves 411. The engagement between the recessed grooves 411 and the mating part 341 limits the gear pin 34. The number of recessed grooves 411 is the same as the number of gear teeth 331, and multiple recessed grooves 411 are arranged in a one-to-one correspondence with multiple gear teeth 331. When the gear pin 34 is located in a recessed groove 411, it can correspond exactly to one gear tooth 331, so that when the rotating clamping part 20 is rotated, the gear pin 34 can engage with the corresponding gear tooth 331.

[0087] As a variation, multiple gear teeth 331 can also be arranged sequentially along the circumference of the cam 33. For example, three gear teeth 331 are arranged sequentially in a clockwise direction on the outer circumference of the cam 33, namely the first gear tooth, the second gear tooth, and the third gear tooth. When the rotating shaft 31 drives the gear pin 34 to rotate counterclockwise, the gear pin 34 first engages with the third gear tooth. At this time, the angle between the functional part 10 and the clamping part 20 is the largest, and the clamping space of the earphone is also the largest. When the gear pin 34 continues to rotate counterclockwise until it engages with the second gear tooth, the angle between the functional part 10 and the clamping part 20 becomes smaller, and the clamping space of the earphone also becomes smaller. When the gear pin 34 continues to rotate counterclockwise until it engages with the first gear tooth, the angle between the functional part 10 and the clamping part 20 continues to become smaller, and the clamping space of the earphone is the smallest. The number of gear teeth 331 described above is merely an example. In practical applications, the number of gear teeth 331 can be set according to requirements. This embodiment does not specifically limit the number of gear teeth 331. In this embodiment, by setting multiple gear teeth 331 in the circumferential direction of the cam 33, the headphone clamping space can also be adjusted to make the headphones suitable for different wearers.

[0088] Example 3

[0089] A type of clip-on earphone, such as Figures 13 to 16 As shown, the device includes a functional unit 10, a clamping unit 20, and a rotating shaft mechanism 30. The functional unit 10 includes a first housing 11; the clamping unit 20 includes a second housing 21. The first housing 11 and the second housing 21 are rotatably connected by the rotating shaft mechanism 30, which is used to adjust and fix the angle between the functional unit 10 and the clamping unit 20 to form a clamping space for clamping the ear. The difference between this embodiment and Embodiment 1 lies in the structure of the rotating shaft mechanism 30. Other structures are the same as in Embodiment 1, and the similarities between this embodiment and Embodiment 1 will not be described again.

[0090] In this embodiment, the rotating shaft mechanism 30 includes a rotating shaft 31, a worm 35, a worm wheel 36, and a cam rod 37. The second housing 21 is rotatably connected to the first housing 11 via the rotating shaft 31. The worm 35 is rotatably disposed inside the first housing 11. The worm wheel 36 is sleeved on the rotating shaft 31 and is rotatable relative to the rotating shaft 31. The worm wheel 36 has teeth 361 and grooves 362 in its circumferential direction. The teeth 361 mesh with the worm 35. The cam rod 37 is fixedly disposed on the second housing 21 and cooperates with the grooves 362.

[0091] like Figure 13 As shown, the functional unit 10 also includes a third support 13, which is fixedly connected to the first housing 11. The worm gear 35 and the worm wheel 36 are both housed within the third support 13. Figure 15 and Figure 16As shown, when wearing the headphones, rotating the clamping part 20 causes the cam rod 37 on the clamping part 20 to engage with the groove 362 of the worm gear 36. Then, rotating the worm 35 causes the worm gear 36 to rotate around the shaft 31, thereby changing the position of the groove 362 on the worm gear 36. This allows for adjustment of the rotation angle of the clamping part 20, achieving stepless adjustment to suit different users. Figure 17 As shown, one end of the worm 35 extends out of the first housing 11 and is provided with a handle 38 for rotating the worm 35. Rotating the handle 38 can rotate the worm 35.

[0092] Furthermore, if Figure 14 As shown, it also includes an elastic mechanism 40, which is movably mounted on the second housing 21. One end of the elastic mechanism 40 abuts against the second housing 21, and the other end is connected to the cam rod 37, allowing the cam rod 37 to move along the length of the second housing 21. The elastic mechanism 40 includes a spring seat 41 and a spring 42. The spring seat 41 is movably mounted inside the second housing 21, and the spring 42 is sleeved on the spring seat 41 with one end abutting against the second housing 21. The cam rod 37 is fixedly connected to the spring seat 41. The elastic force of the elastic mechanism 40 allows the cam rod 37 to engage in the groove 362 of the worm gear 36. When the clamping part 20 needs to be reset to the non-wearing state, external force can overcome the elastic force of the elastic mechanism 40, causing the cam rod 37 to disengage from the groove 362 of the worm gear 36, thus resetting the clamping part 20 to the flattened state.

[0093] like Figure 13 and Figure 14 As shown, a limiting groove 363 is also provided on the outer circumference of the worm gear 36; the teeth 361, the groove 362, and the limiting groove 363 are arranged sequentially at intervals in a clockwise direction on the outer circumference of the worm gear 36; in the wearing state, the cam rod 37 is located in the groove 362; as Figure 13 As shown, in the non-wearing state, the cam rod 37 is located in the limiting groove 363. The first side wall 3631 of the limiting groove 363 near the groove 362 is inclined relative to the horizontal plane and has a pre-pressure on the cam rod 37, so that when the worm gear 35 rotates, the second housing 21 is always in a horizontal state.

[0094] In the non-wearing state, the cam rod 37 is in a horizontal position and engages with the limiting groove 363 on the worm gear 36. The limiting groove 363 exerts a pre-pressure on the cam rod 37. Regardless of how the worm gear 35 adjusts the rotation of the worm gear 36, the cam rod 37 remains within the limiting groove 363, keeping the clamping part 20 in a horizontal position and the entire earphone in a non-wearing state. When the earphone needs to be worn, the clamping part 20 is rotated counterclockwise, causing the cam rod 37 to disengage from the limiting groove 363 and engage with the groove 362. When the clamping part 20 and the rotating shaft 31 rotate together, the worm gear 36 does not rotate. It only rotates when the worm gear 35 rotates. After the cam rod 37 engages with the groove 362, rotating the worm gear 35 rotates the worm gear 36. When the worm gear 36 rotates, it moves the cam rod 37 engaged with the groove 362, thereby rotating the clamping part 20 to adjust its position to accommodate different users.

[0095] In this embodiment, the rotational stroke of the worm gear 36 is the same as the movement stroke of the cam rod 37 on the first side wall 3631 of the limiting groove 363. That is, when the teeth on the worm gear 36 move to the top of the worm 35, the cam rod 37 is located at the top of the first side wall 3631. When the teeth on the worm gear 36 move to the bottom of the worm 35, the cam rod 37 is located at the bottom of the first side wall 3631. This ensures that no matter how the worm gear 36 is rotated, the first side wall 3631 of the limiting groove 363 always has a pre-pressure on the cam rod 37, which can keep the clamping part 20 in a horizontal state, and thus keep the clamping part 20 in a non-wearing state.

[0096] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A clip-on earphone, characterized in that: include: The functional part includes a first shell; The clamping portion includes a second shell; A rotating shaft mechanism, wherein the first shell and the second shell are rotatably connected via the rotating shaft mechanism, and is used to adjust and fix the angle between the functional part and the clamping part to form a clamping space for clamping the ear.

2. The ear-clip headphone according to claim 1, characterized in that: The functional part further includes a first bracket fixedly disposed in the first shell; The clamping portion further includes a second bracket fixedly disposed in the second shell; The second bracket is rotatably connected to the first bracket via the rotating shaft mechanism.

3. The ear-clip headphone according to claim 2, characterized in that: The rotating shaft mechanism includes a rotating shaft and a take-up sheet. The rotating shaft passes through the first bracket and two ends are respectively rotatably connected to the second bracket. The take-up sheet is fixed in the first bracket and wound on the rotating shaft. The inner wall of the take-up sheet contacts the outer wall of the rotating shaft. The friction force between the take-up sheet and the rotating shaft forms rotational damping.

4. The ear-clip headphone according to claim 3, characterized in that: A stepped hole is provided in the first bracket, and the stepped hole includes a first through hole and a second through hole. The aperture of the first through hole is smaller than the aperture of the second through hole. The winding sheet is arranged in the second through hole, and the rotating shaft passes through the first through hole and the center of the winding sheet.

5. The ear-clip headphone according to claim 4, characterized in that: The inner side wall of the first through hole is provided with a protrusion, and the outer side wall of the rotating shaft is provided with a recessed portion, and the recessed portion cooperates with the protrusion to limit the rotation angle of the rotating shaft relative to the first bracket.

6. The ear-clip headphone according to claim 2, characterized in that: The first shell is provided with a first limiting portion, and the second shell is provided with a second limiting portion. The first limiting portion cooperates with the second limiting portion to limit the rotation angle of the second shell relative to the first shell.

7. The ear-clip headphone according to claim 3, characterized in that: The winding sheet includes a fixing portion and a winding portion, wherein a first end of the winding portion is connected to the fixing portion, a second end of the winding portion is spaced apart from the first end of the winding portion to form an opening, the fixing portion is fixed in the first bracket, and the winding portion is wound on the rotating shaft; When changing from the non-wearing state to the wearing state, the angle between the clamping portion and the functional portion becomes smaller, the spacing between the openings becomes larger, and the friction between the winding sheet and the rotating shaft becomes smaller; When changing from the wearing state to the non-wearing state, the angle between the clamping portion and the functional portion becomes larger, the spacing between the openings becomes smaller, and the friction between the winding sheet and the rotating shaft becomes larger.

8. The ear-clip headphone according to claim 7, characterized in that: The fixing portion is arranged in the first bracket toward the first shell, and the opening is arranged below the fixing portion; or; The fixing portion is arranged in the first bracket toward the second shell, and the opening is arranged above the fixing portion.

9. The ear-clip headphone according to claim 1, characterized in that: The rotating shaft mechanism includes a rotating shaft, a cam and a shift pin. The second housing is rotatably connected to the first housing via the rotating shaft. The cam is sleeved on the rotating shaft and fixedly connected to the first housing. The cam is provided with a plurality of shift teeth. The shift pin is fixedly disposed in the second housing. When the shift pin is engaged with any shift tooth, the rotation angle between the second housing and the first housing is adjusted.

10. The ear-clip headphone according to claim 9, characterized in that: It also includes an elastic mechanism, which is movably arranged on the second shell, one end of the elastic mechanism abuts against the second shell, and the other end abuts against the shift pin, so that the shift pin can move along the length direction of the second shell.

11. The ear-clip headphone according to claim 10, characterized in that: The elastic mechanism comprises a spring seat and a spring. The spring seat is movably arranged in the second housing. The spring is sleeved on the spring seat and one end of the spring abuts against the second housing. The shift pin abuts against the spring seat.

12. The ear-clip headphone according to claim 11, characterized in that: The plurality of shift teeth are arranged in sequence along the thickness direction of the cam, and the heights of the plurality of shift teeth are decreased in sequence along the thickness direction of the cam. The shift pin is movable along the width direction of the second shell. The shift pin is moved along the width direction of the second shell so that the shift pin cooperates with different shift teeth to adjust the rotation angle between the second shell and the first shell.

13. The ear-clip headphone according to claim 12, characterized in that: A plurality of recessed grooves are provided along the width direction of the second shell body on one side where the spring seat abuts against the shift pin, and a mating portion that cooperates with the recessed grooves is provided at the end of the shift pin. When the shift pin moves along the width direction of the second shell body, the mating portion can be located in different recessed grooves, and the shift pin is limited by the mating between the recessed grooves and the mating portion.

14. The ear-clip headphone according to claim 10, characterized in that: The plurality of gear teeth are arranged in sequence along the circumferential direction of the cam.

15. The ear-clip headphone according to claim 1, characterized in that: The rotating shaft mechanism includes a rotating shaft, a worm, a worm wheel and a cam rod. The second housing is rotatably connected to the first housing via the rotating shaft. The worm is rotatably arranged in the first housing. The worm wheel is sleeved on the rotating shaft and is rotatable relative to the rotating shaft. A tooth portion and a groove are provided on the circumference of the worm wheel. The tooth portion meshes with the worm. The cam rod is fixedly arranged on the second housing and cooperates with the groove.

16. The ear-clip headphone according to claim 15, characterized in that: It also includes an elastic mechanism, which is movably arranged on the second shell, one end of the elastic mechanism abuts against the second shell, and the other end is connected to the cam rod, so that the cam rod can move along the length direction of the second shell.

17. The ear-clip headphone according to claim 16, characterized in that: The elastic mechanism comprises a spring seat and a spring. The spring seat is movably arranged in the second housing. The spring is sleeved on the spring seat and one end of the spring abuts against the second housing. The cam rod is fixedly connected to the spring seat.

18. The ear-clip headphone according to claim 16, characterized in that: A limiting groove is also provided on the outer circumference of the worm wheel; The tooth portion, the groove and the limiting groove are sequentially arranged at intervals along the clockwise direction on the outer circumference of the worm wheel; In the wearing state, the cam rod is located in the groove; In the non-wearing state, the cam rod is located in the limiting groove, and the first side wall of the limiting groove close to the groove is inclined relative to the horizontal plane and has a pre-pressure on the cam rod, so that when the worm rotates, the second shell is always in a horizontal state.

19. The ear-clip headphone according to claim 18, characterized in that: When the teeth on the worm wheel move to the top of the worm, the cam rod is located at the top of the first side wall, and when the teeth on the worm wheel move to the bottom of the worm, the cam rod is located at the bottom of the first side wall.

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