Rotating shaft mechanism for headphone

Abstract

The rotating shaft mechanism comprises a first connecting piece, a second connecting piece and a rotating shaft assembly, the first connecting piece is provided with a first rotating shaft hole, the second connecting piece is provided with a second rotating shaft hole, the rotating shaft assembly comprises a sleeve piece and a cam piece, the sleeve piece is arranged in the first rotating shaft hole, and the cam piece is arranged in the second rotating shaft hole. The sleeve part is rotatably arranged on the cam part in a sleeving mode, a sliding groove is formed in the inner wall of the sleeve part, a protruding block is arranged on the outer wall of the cam part and arranged in the sliding groove in a sliding mode, and a first connecting block is arranged at one end of the cam part and arranged in the second rotating shaft hole. When the rotating shaft mechanism is applied to the headphone, the head beam and the earmuffs of the headphone can be prevented from rotating excessively, and the wearing experience of the headphone can be improved by the rotating shaft mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of headphones, in particular to a rotating shaft mechanism for headphones. Background Art

[0002] In recent years, headphones have tended to develop in the direction of portability and miniaturization, and consumers have also put forward higher requirements for the comfort of wearing headphones. Among them, headphones are more comfortable and have better sound effects than in-ear headphones. Existing headphones can be provided with a hinge mechanism so that the head beam and earmuffs connected to the headphones can rotate relative to each other, which not only allows the headphones to have a folding function, but also improves the wearing comfort by adjusting the angle between the head beam and the earmuffs. However, the existing hinge mechanism used on headphones has a single structure, which cannot limit the relative rotation angle between the head beam and the earmuffs of the headphones. The headphones are prone to over-rotation during adjustment, which results in a poor wearing experience of the headphones. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a rotating shaft structure for headphones to solve the problem that the existing rotating shaft mechanism cannot limit the relative rotation angle between the head beam and the earmuff of the headphones.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a pivot mechanism for a headset, comprising a first connecting member, a second connecting member and a pivot assembly, the first connecting member is provided with a first pivot hole, the second connecting member is provided with a second pivot hole, the pivot assembly comprises a sleeve member and a cam member, the sleeve member is provided in the first pivot hole, the sleeve member is rotatably sleeved on the cam member, a slide groove is provided on the inner wall of the sleeve member, a protrusion is provided on the outer wall of the cam member, the protrusion is slidably provided in the slide groove, a first connecting block is provided at one end of the cam member, and the first connecting block is provided in the second pivot hole.

[0005] Furthermore, a fixing groove adjacent to the sliding groove is provided on the inner wall of the sleeve member, and a spacing portion is provided between the fixing groove and the sliding groove.

[0006] Furthermore, a groove wall of the sliding groove close to the spacer and a groove wall of the fixing groove close to the spacer are both provided with guiding inclined surfaces.

[0007] Furthermore, the sleeve member is provided with an opening to enable the sleeve member to produce elastic deformation.

[0008] Furthermore, the sleeve member includes a first hinge portion and a second hinge portion that are arranged opposite to each other, a hinge groove is formed between the first hinge portion and the second hinge portion, the second connecting member is arranged in the hinge groove, and the first hinge portion is provided with the first rotating shaft hole.

[0009] Furthermore, a third rotating shaft hole is provided on the second hinged portion, and the rotating shaft assembly also includes a spindle member, which is rotatably disposed in the third rotating shaft hole, and a second connecting block is provided at one end of the spindle, and the second connecting block is disposed in the second rotating shaft hole.

[0010] Furthermore, a guide block is provided at the other end of the spindle, a guide groove is provided on the second hinged portion, and the guide block is slidably disposed in the guide groove.

[0011] Furthermore, a second connecting block is provided at the other end of the spindle member, the second shaft hole includes a first hole segment and a second hole segment, the first connecting block is provided in the first hole segment, and the second connecting block is provided in the second hole segment.

[0012] Furthermore, a limiting groove is provided on the inner wall of the first rotating shaft hole, and a limiting block is provided on the outer wall of the sleeve member and is arranged in the limiting groove.

[0013] Furthermore, the first connecting member further comprises a connecting portion, the connecting portion is provided with a first wire hole, the second connecting member is provided with a second wire hole, and the first wire hole is connected to the second wire hole.

[0014] The beneficial effects of the present invention are as follows: the first connecting member and the second connecting member of the rotating shaft mechanism described in the present invention are rotatably connected by means of the sleeve member and the cam member, and the slide groove on the sleeve member can limit the protrusion on the cam member, thereby limiting the relative rotation angle between the first connecting member and the second connecting member. Its application to headphones can prevent the headband and earmuffs of the headphones from rotating too far, and the rotating shaft mechanism can improve the wearing experience of the headphones and increase the service life of the headphones. In addition, the rotating shaft mechanism has a simple structure and is easy to assemble, and is beneficial to the miniaturization and thinness of the headphones. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the rotating shaft mechanism of the utility model in one embodiment at a viewing angle;

[0016] Figure 2 for Figure 1 Exploded view of the rotating shaft mechanism;

[0017] Figure 3 for Figure 1A schematic diagram of the structure of the transfer shaft mechanism from another perspective;

[0018] Figure 4 for Figure 3 Middle AA section view;

[0019] Figure 5 for Figure 4 Structure diagram of part B;

[0020] Figure 6 for Figure 3 Middle CC section view;

[0021] Description of labels:

[0022] 1. first connecting member; 11. first hinged portion; 111. first rotating shaft hole; 112. limiting groove; 12. second hinged portion; 121. third rotating shaft hole; 122. guide groove; 13. hinged groove; 14. connecting portion; 141. first line hole;

[0023] 2. second connecting member; 21. second rotating shaft hole; 211. first hole section; 212. second hole section; 22. second wire hole;

[0024] 3. Shaft assembly; 31. Sleeve member; 311. Slide groove; 312. Fixing groove; 313. Spacer; 314. Guide slope; 315. Opening; 316. Limit block; 32. Cam member; 321. Protrusion; 322. First connecting block; 33. Spindle member; 331. Second connecting block; 332. Guide block. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0026] Please refer to Figures 1 to 6 A hinge mechanism for a headset, comprising a first connecting member 1, a second connecting member 2 and a hinge assembly 3, wherein the first connecting member 1 is provided with a first hinge hole 111, the second connecting member 2 is provided with a second hinge hole 21, the hinge assembly 3 comprises a sleeve member 31 and a cam member 32, the sleeve member 31 is arranged in the first hinge hole 111, the sleeve member 31 is rotatably sleeved on the cam member 32, a slide groove 311 is arranged on the inner wall of the sleeve member 31, a protrusion 321 is arranged on the outer wall of the cam member 32, the protrusion 321 is slidably arranged in the slide groove 311, a first connecting block 322 is arranged at one end of the cam member 32, and the first connecting block 322 is arranged in the second hinge hole 21.

[0027] The structural principle of the present invention is briefly described as follows: the hinge mechanism described in the present invention can be specifically applied to headphones, and the first connecting member 1 is used to connect the headband of the headphones, and the second connecting member 2 is used to connect the earmuffs of the headphones, wherein the first connecting member 1 and the second connecting member 2 are rotatably connected through the hinge assembly 3, so that the headband and the earmuffs of the headphones can achieve relative rotation; when the cam member 32 and the sleeve member 31 rotate relative to each other, the protrusion 321 can slide in the slide groove 311, wherein the slide groove 311 limits the protrusion 321, which can avoid excessive rotation between the headband and the earmuffs. Specifically, the slide groove 311 can be designed according to actual application requirements so that the hinge mechanism can constrain the rotation between the headband and the earmuffs of the headphones.

[0028] From the above description, it can be seen that the beneficial effects of the utility model are: the first connecting member 1 and the second connecting member 2 of the rotating shaft mechanism described in the utility model are rotatably connected through the sleeve member 31 and the cam member 32, and the slide groove 311 on the sleeve member 31 can limit the protrusion 321 on the cam member 32, thereby limiting the relative rotation angle between the first connecting member 1 and the second connecting member 2. Its application to headphones can prevent the headband and earmuffs of the headphones from rotating too much, and the rotating shaft mechanism can improve the wearing experience of the headphones; in addition, the rotating shaft mechanism has a simple structure and is easy to assemble, and the rotating shaft mechanism is beneficial to the miniaturization and lightweight design of the headphones.

[0029] Furthermore, a fixing groove 312 is disposed on the inner wall of the sleeve member 31 and is adjacent to the sliding groove 311 , and a spacing portion 313 is disposed between the fixing groove 312 and the sliding groove 311 .

[0030] It can be known from the above description that when the cam member 32 and the sleeve member 31 rotate relative to each other, the protrusion 321 can rotate into the fixing groove 312 so that the positions of the cam member 32 and the sleeve member 31 are fixed.

[0031] Furthermore, a groove wall of the sliding groove 311 close to the spacer 313 and a groove wall of the fixing groove 312 close to the spacer 313 are both provided with a guiding inclined surface 314 .

[0032] It can be seen from the above description that when the cam member 32 and the sleeve member 31 rotate relative to each other, the guide slope 314 can facilitate the protrusion 321 to enter the fixed groove 312 from the sliding groove 311 through the spacing portion 313, or to enter the sliding groove 311 from the fixed groove 312 through the spacing portion 313.

[0033] Furthermore, the sleeve member 31 is provided with an opening 315 to enable the sleeve member 31 to produce elastic deformation.

[0034] It can be seen from the above description that when the protrusion 321 moves to the spacing portion 313 , the protrusion 321 and the spacing portion 313 conflict with each other. At this time, the sleeve member 31 can generate elastic deformation so that the protrusion 321 can pass through the spacing portion 313 .

[0035] Of course, in other preferred embodiments of the present invention, the above-mentioned effect can be achieved by providing a protrusion 321 with elastic deformation performance.

[0036] Furthermore, the sleeve member 31 includes a first hinged portion 11 and a second hinged portion 12 that are relatively arranged, a hinge groove 13 is formed between the first hinged portion 11 and the second hinged portion 12, the second connecting member 2 is arranged in the hinge groove 13, and the first hinged portion 11 is provided with the first rotating shaft hole 111.

[0037] It can be seen from the above description that the sleeve member 31 and the cam member 32 are hinged, which is beneficial to improving the reliability and service life of the shaft mechanism.

[0038] Furthermore, a third rotating shaft hole 121 is provided on the second hinged portion 12, and the rotating shaft assembly 3 also includes a spindle member 33, which is rotatably disposed in the third rotating shaft hole 121, and a second connecting block 331 is provided at one end of the spindle, and the second connecting block 331 is disposed in the second rotating shaft hole 21.

[0039] It can be seen from the above description that the spindle member 33 can improve the reliability of the rotational connection between the first connecting member 1 and the second connecting member 2 .

[0040] Furthermore, a guide block 332 is provided at the other end of the spindle, a guide groove 122 is provided on the second hinged portion 12 , and the guide block 332 is slidably disposed in the guide groove 122 .

[0041] It can be seen from the above description that the first connecting member 1 and the second connecting member 2 can also achieve the function of limited rotation through the guide block 332 on the core shaft and the guide groove 122 on the second hinged part 12.

[0042] Furthermore, the other end of the spindle member 33 is provided with a second connecting block 331 , the second shaft hole 21 includes a first hole section 211 and a second hole section 212 , the first connecting block 322 is provided in the first hole section 211 , and the second connecting block 331 is provided in the second hole section 212 .

[0043] like Figure 6As shown, in some preferred embodiments of the present invention, the aperture of the first hole segment 211 is not equal to the aperture of the second hole segment 212. During the assembly of the rotating shaft mechanism, the direction of the second connecting member 2 can be quickly distinguished by observing the apertures of the first hole segment 211 and the second hole segment 212, which can improve the assembly efficiency of the rotating shaft mechanism.

[0044] Furthermore, a limiting groove 112 is provided on the inner wall of the first rotating shaft hole 111 , and a limiting block 316 is provided on the outer wall of the sleeve member 31 . The limiting block 316 is disposed in the limiting groove 112 .

[0045] It can be known from the above description that the sleeve member 31 and the first rotating shaft hole 111 are relatively fixed.

[0046] Furthermore, the first connecting member 1 further comprises a connecting portion 14 , the connecting portion 14 is provided with a first wire hole 141 , the second connecting member 2 is provided with a second wire hole 22 , and the first wire hole 141 is connected to the second wire hole 22 .

[0047] It can be seen from the above description that the wire harness of the headset can be arranged in the first wire hole 141 and the second wire hole 22 .

[0048] Embodiment 1

[0049] like Figures 1 to 6 In the first embodiment of the utility model, a hinge mechanism for a headset is provided, which includes a first connecting member 1, a second connecting member 2 and a hinge assembly 3, wherein the first connecting member 1 can be used to connect the headband of the headset, and the second connecting member 2 can be used to connect the earmuffs of the headset.

[0050] like Figure 2 As shown, in the first embodiment, the rotating shaft assembly 3 includes a sleeve member 31, a cam member 32 and a spindle member 33. The sleeve member 31 includes a first hinge portion 11 and a second hinge portion 12 which are arranged opposite to each other. A hinge groove 13 is formed between the first hinge portion 11 and the second hinge portion 12. The second connecting member 2 is arranged in the hinge groove 13. A first rotating shaft hole 111 is provided on the first hinge portion 11. The sleeve member 31 is arranged in the first rotating shaft hole 111. The sleeve member 31 is rotatably sleeved on the cam member 32. A sliding groove 311 is provided on the inner wall of the sleeve member 31. A protrusion 321 is provided on the outer wall of the cam member 32. The protrusion 321 is slidably arranged in the sliding groove 311. A first connecting block 322 is provided at one end of the cam member 32. The first connecting block 322 is arranged in the second rotating shaft hole 21. The headphones using the hinge mechanism can control the relative rotation of the headband and the earmuffs to obtain a more comfortable wearing experience. When the headband and the earmuffs rotate relative to each other, the protrusion 321 can slide in the slide groove 311, wherein the slide groove 311 limits the protrusion 321, which can prevent the headband and the earmuffs from rotating too much.

[0051] like Figure 5 As shown, a fixed groove 312 is provided on the inner wall of the sleeve member 31 adjacent to the slide groove 311, and a spacer 313 is provided between the fixed groove 312 and the slide groove 311; the groove wall of the slide groove 311 close to the spacer 313 and the groove wall of the fixed groove 312 close to the spacer 313 are both provided with a guide slope 314. An opening 315 is provided on the sleeve member 31 to allow the sleeve member 31 to produce elastic deformation. When the protrusion 321 moves to the spacer 313, the protrusion 321 and the spacer 313 conflict with each other, and at this time, the sleeve member 31 can produce elastic deformation so that the protrusion 321 can pass through the spacer 313.

[0052] In the first embodiment, the second hinged portion 12 is provided with a third shaft hole 121, the spindle member 33 is rotatably disposed in the third shaft hole 121, one end of the spindle is provided with a second connection block 331, and the second connection block 331 is disposed in the second shaft hole 21. The other end of the spindle is provided with a guide block 332, the second hinged portion 12 is provided with a guide groove 122, and the guide block 332 is slidably disposed in the guide groove 122.

[0053] like Figure 6 As shown, the second shaft hole 21 includes a first hole section 211 and a second hole section 212 , the first connecting block 322 is disposed in the first hole section 211 , the second connecting block 331 is disposed in the second hole section 212 , and the aperture of the first hole section 211 is larger than that of the second hole section 212 .

[0054] like Figure 2 As shown, the second shaft hole 21 includes a first hole section 211 and a second hole section 212 , the first connecting block 322 is disposed in the first hole section 211 , and the second connecting block 331 is disposed in the second hole section 212 .

[0055] In summary, the first connecting member 1 and the second connecting member 2 of the rotating shaft mechanism described in the utility model are rotatably connected through the sleeve member 31 and the cam member 32, and the slide groove 311 on the sleeve member 31 can limit the protrusion 321 on the cam member 32, thereby limiting the relative rotation angle between the first connecting member 1 and the second connecting member 2. Its application to headphones can prevent the headband and earmuffs of the headphones from rotating too much, and the rotating shaft mechanism can improve the wearing experience of the headphones; in addition, the rotating shaft mechanism has a simple structure and is easy to assemble, and the rotating shaft mechanism is beneficial to the miniaturization and lightweight design of the headphones.

[0056] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A hinge mechanism for headphones, characterized in that: The invention comprises a first connecting member, a second connecting member and a rotating shaft assembly, wherein the first connecting member is provided with a first rotating shaft hole, the second connecting member is provided with a second rotating shaft hole, the rotating shaft assembly comprises a sleeve member and a cam member, the sleeve member is provided in the first rotating shaft hole, the sleeve member is rotatably sleeved on the cam member, a sliding groove is provided on the inner wall of the sleeve member, a protrusion is provided on the outer wall of the cam member, the protrusion is slidably provided in the sliding groove, a first connecting block is provided at one end of the cam member, and the first connecting block is provided in the second rotating shaft hole.

2. The rotating shaft mechanism according to claim 1, characterized in that: A fixing groove is arranged on the inner wall of the sleeve member and is adjacent to the sliding groove. A spacing portion is arranged between the fixing groove and the sliding groove.

3. The rotating shaft mechanism according to claim 2, characterized in that: A groove wall of the sliding groove close to the spacer and a groove wall of the fixing groove close to the spacer are both provided with guiding inclined surfaces.

4. The rotating shaft mechanism according to claim 1, characterized in that: The sleeve member is provided with an opening so as to enable the sleeve member to produce elastic deformation.

5. The rotating shaft mechanism according to claim 1, characterized in that: The sleeve member includes a first hinged portion and a second hinged portion which are arranged opposite to each other, a hinge groove is formed between the first hinged portion and the second hinged portion, the second connecting member is arranged in the hinge groove, and the first hinged portion is provided with the first rotating shaft hole.

6. The rotating shaft mechanism according to claim 5, characterized in that: A third rotating shaft hole is provided on the second hinged portion, and the rotating shaft assembly further comprises a spindle member, which is rotatably disposed in the third rotating shaft hole, and a second connecting block is provided at one end of the spindle, and the second connecting block is disposed in the second rotating shaft hole.

7. The rotating shaft mechanism according to claim 6, characterized in that: A guide block is provided at the other end of the spindle, a guide groove is provided on the second hinged portion, and the guide block is slidably arranged in the guide groove.

8. The rotating shaft mechanism according to claim 6, characterized in that: The second rotating shaft hole includes a first hole section and a second hole section. The first connecting block is arranged in the first hole section, and the second connecting block is arranged in the second hole section.

9. The rotating shaft mechanism according to claim 1, characterized in that: A limiting groove is provided on the inner wall of the first rotating shaft hole, and a limiting block is provided on the outer wall of the sleeve member, and the limiting block is arranged in the limiting groove.

10. The rotating shaft mechanism according to claim 1, characterized in that: The first connecting member further comprises a connecting portion, a first wire hole is provided on the connecting portion, a second wire hole is provided on the second connecting member, and the first wire hole is connected to the second wire hole.

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