Earphone gear adjustment structure and earphone device
By designing the earcups, sliding covers, and position fixing covers, and combining the sliding levers and soft rubber layers, the noise and inaccurate adjustment problems in the headphone adjustment structure are solved, achieving both silent operation and precise adjustment, thus improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUIZHOU KELIN ACOUSTICS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-23
AI Technical Summary
Existing headphone adjustment mechanisms suffer from noise and unreliability issues, particularly when the slide and slider engage, which can generate noise. Furthermore, the adjustment operation lacks convenience and precision.
The design incorporates an earcup body, a sliding cover, and a position fixing cover. The sliding cover features a sliding lever, and the positioning rail has a positioning groove. The sliding lever engages with the positioning rail via a soft rubber layer, allowing for precise adjustment through the positioning groove during sliding to prevent noise generation.
This technology reduces noise and improves positioning reliability during headphone adjustment, ensuring headphone comfort and stability, and enhancing the convenience and accuracy of adjustment.
Smart Images

Figure CN224401643U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the technical field of headphones, and in particular to a headphone level adjustment structure and headphone device. Background Technology
[0002] In the field of audio equipment, over-ear headphones are widely loved by users for their excellent sound quality and immersive listening experience. To meet the wearing needs of different users with different head shapes and circumferences, over-ear headphones are usually designed with adjustable distance to ensure wearing comfort and stability.
[0003] Currently, most common headphone headband adjustment mechanisms on the market use a combination of a sliding groove and a slider. The headband length is adjusted by the slider sliding within the groove. However, this traditional adjustment mechanism has significant drawbacks. When the groove is made of iron, the slider, also made of iron, causes noise due to collisions during adjustment, negatively impacting the user experience. Furthermore, most traditional headphone adjustment mechanisms use a telescopic adjustment method, making it difficult for users to precisely adjust to the desired distance, resulting in a lack of convenience and precision in the adjustment operation.
[0004] Therefore, there is an urgent need to design a completely new headphone structure to solve the problems of unreliable adjustment positioning and noise generation during adjustment in the existing technology by optimizing the adjustment method and material composition. Utility Model Content
[0005] The purpose of this disclosure is to overcome the shortcomings of the prior art and to provide a headphone level adjustment structure and headphone device that can reduce noise generated during adjustment and provide reliable positioning.
[0006] The purpose of this disclosure is achieved through the following technical solution:
[0007] An earphone level adjustment structure includes an earcup body, a sliding cover, and a level fixing cover. The earcup body is connected to the level fixing cover, and the level fixing cover is slidably sleeved on the sliding cover. The level fixing cover has a sliding groove, and a positioning rail is provided on the inner wall of the sliding groove. A sliding lever is provided on the side of the sliding cover near the sliding groove. When the sliding cover slides relative to the level fixing cover, the positioning end of the sliding lever moves and abuts against the positioning rail.
[0008] The positioning rail includes a shaping component and a soft rubber layer covering the shaping component. The positioning rail has multiple positioning grooves, which are spaced apart on the inner wall of the sliding groove. The sliding pusher abuts against the soft rubber layer. The thickness of the soft rubber layer is between 3mm and 5mm.
[0009] In one embodiment, the sliding cover has a guide groove, and the gear position fixing cover is disposed in the guide groove.
[0010] In one embodiment, the inner wall of the guide groove is provided with a first groove and a second groove, the first groove and the second groove being disposed opposite to each other on both sides of the guide groove; the outer peripheral wall of the gear position fixing cover is provided with a first sliding part and a second sliding part, the first sliding part and the second sliding part being disposed opposite to each other on both sides of the gear position fixing cover, the first sliding part being slidably disposed in the first groove, and the second sliding part being slidably disposed in the second groove.
[0011] In one embodiment, the sliding member includes a rigid rod and an elastic contact disposed at the end of the rigid rod. The elastic contact is adapted to the shape of the positioning groove and is movably disposed within the positioning groove.
[0012] In one embodiment, there are two positioning rails, each of which is disposed on the inner wall of the sliding groove along with the other positioning rail.
[0013] In one embodiment, the projected area of the first slide groove is equal to the projected area of the second slide groove, and the projected area of the first sliding part is equal to the projected area of the second sliding part.
[0014] In one embodiment, the gear fixing cover has a connecting portion, and the sliding cover has a connecting port on the side opposite to the earcup body, with the connecting portion disposed at the connecting port.
[0015] In one embodiment, the gear position fixing cover is detachably connected to the sliding cover.
[0016] An earphone device includes the earphone level adjustment structure described in any of the above embodiments.
[0017] Compared with the prior art, this disclosure has at least the following advantages:
[0018] 1) The earcups are used to receive sound from the device. The earcups are fixedly connected to the position fixing cover. A sliding cover is slidably fitted onto the position fixing cover, allowing it to slide relative to it. A sliding lever is located on the side of the sliding cover closest to the sliding groove, and a positioning rail is provided on the inner wall of the sliding groove. When the sliding cover slides relative to the position fixing cover, the sliding lever will move and abut against the positioning rail. Furthermore, the positioning rail has multiple positioning grooves, each spaced apart from another on the inner wall of the sliding groove. When the sliding cover moves the sliding lever on the positioning rail, the positioning end of the sliding lever will move from one positioning groove to another. This allows the user to adjust the sliding cover by using the cooperation between the positioning rail and the sliding lever, ensuring proper positioning during sliding and preventing excessive sliding that would make it difficult to adjust the headphones to the appropriate position.
[0019] 2) The positioning rail includes a shaping component and a soft rubber layer covering the shaping component. The sliding component abuts against the soft rubber layer. The positioning rail is designed with a shaping component made of rigid material and a soft rubber layer covering the shaping component. The soft properties of the soft rubber layer further ensure that the sliding component always presses against the surface of the soft rubber layer, avoiding noise generated by friction between the sliding component and the positioning rail. At the same time, the soft rubber layer covering the shaping component reduces the noise generated by the collision between the positioning rail and the sliding component. Attached Figure Description
[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a cross-sectional view of an earphone level adjustment structure according to an embodiment of the present disclosure;
[0022] Figure 2 for Figure 1 The enlarged view shown at point A in the middle;
[0023] Figure 3 for Figure 1 A schematic diagram of the sliding cover structure;
[0024] Figure 4 for Figure 1 Another structural diagram of the sliding cover;
[0025] Figure 5 This is another schematic diagram of the headphone gear adjustment structure according to an embodiment of the present disclosure.
[0026] Reference numerals: 10, Headphone gear adjustment structure; 100, Earcup body; 200, Sliding cover; 210, Sliding lever; 2110, Rigid rod; 2120, Elastic contact; 220, Guide groove; 2210, First slide groove; 2220, Second slide groove; 230, Connecting port; 300, Gear fixing cover; 310, Sliding groove; 3110, Positioning rail; 3111, Positioning groove; 320, Connecting part; 330, First sliding part; 340, Second sliding part. Detailed Implementation
[0027] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.
[0028] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.
[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0030] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:
[0031] like Figures 1 to 5 As shown, an embodiment of the headphone gear adjustment structure 10 includes an earcup body 100, a sliding cover 200, and a gear fixing cover 300. The earcup body 100 is connected to the gear fixing cover 300. The sliding cover 200 is slidably sleeved on the gear fixing cover 300. The gear fixing cover 300 has a sliding groove 310. The inner wall of the groove is provided with a positioning rail 3110. A sliding lever 210 is provided on the side of the sliding cover 200 near the sliding groove 310. The sliding lever 210 is movably abutted against the positioning rail 3110.
[0032] The positioning rail 3110 has multiple positioning grooves 3111, which are spaced apart on the inner wall of the sliding groove 310. The positioning rail 3110 includes a shaping component and a soft rubber layer covering the shaping component. The sliding pusher 210 abuts against the soft rubber layer. The thickness of the soft rubber layer is between 3mm and 5mm.
[0033] In this embodiment, the earcup body 100 is used to receive the sound emitted by the device. The earcup body 100 is fixedly connected to the gear position fixing cover 300, so that the earcup body 100 is fixedly connected to the gear position fixing cover 300. The sliding cover 200 is slidably sleeved on the gear position fixing cover 300, so that the sliding cover 200 can slide relative to the gear position fixing cover 300. Since the sliding cover 200 is provided with a sliding paddle 210 on the side near the sliding groove 310, and the inner wall of the sliding groove 310 is provided with a positioning rail 3110, when the sliding cover 200 slides relative to the gear position fixing cover 300, the sliding paddle 210 will move and abut against the positioning rail 3110. Furthermore, the positioning rail 3110 has multiple positioning grooves 3111. Each positioning groove 3111 is spaced apart from another positioning groove 3111 on the inner wall of the sliding groove 310. When the sliding cover 200 drives the sliding dial 210 to move on the positioning rail 3110, the positioning end of the sliding dial 210 will move from one positioning groove 3111 to another positioning groove 3111. This allows the user to position the sliding cover 200 during the sliding process by cooperating with the positioning rail 3110 and the sliding dial 210, thus preventing the sliding cover 200 from sliding excessively and making it difficult to adjust to the appropriate position for wearing the headphones.
[0034] Furthermore, the positioning rail 3110 includes a shaping component and a soft rubber layer covering the shaping component. The sliding pin 210 abuts against the soft rubber layer. The positioning rail 3110 is designed with a rigid shaping component and a soft rubber layer covering it. The softness of the rubber layer further ensures that the sliding pin 210 always presses against the surface of the rubber layer. Simultaneously, the soft rubber layer covering the shaping component prevents noise generated by friction between the sliding pin 210 and the positioning rail 3110. Furthermore, the soft rubber layer covering the shaping component reduces noise generated by the collision between the positioning rail 3110 and the sliding pin 210. The shaping component and the soft rubber layer covering it are formed into the positioning rail 3110 through in-mold injection molding, while limiting the thickness of the soft rubber layer to between 3mm and 5mm, thus attaching a layer of soft rubber to the surface of the positioning rail 3110.
[0035] Combination Figure 1 and Figure 3As shown, in one embodiment, the sliding cover 200 has a guide groove 220, and the gear position fixing cover 300 is disposed within the guide groove 220. It can be understood that the sliding cover 200 has the guide groove 220, and the shape of the gear position fixing cover 300 is adapted to the guide groove 220, allowing for a tight sliding fit. Furthermore, the guide groove 220 encloses the gear position fixing cover 300, ensuring stability during sliding. Because the guide groove 220 encloses the gear position fixing cover 300, the smoothness of sliding and structural stability are improved.
[0036] It should be noted that the combination of in-mold injection molding and soft rubber layer to form positioning rails is existing technology and will not be elaborated here.
[0037] Combination Figures 1 to 4 As shown, the inner wall of the guide groove 220 is provided with a first groove 2210 and a second groove 2220, the first groove 2210 and the second groove 2220 being disposed opposite to each other on both sides of the guide groove 220; the outer peripheral wall of the gear position fixing cover 300 is provided with a first sliding part 330 and a second sliding part 340, the first sliding part 330 and the second sliding part 340 being disposed opposite to each other on both sides of the gear position fixing cover 300, the first sliding part 330 being slidably disposed in the first groove 2210, and the second sliding part 340 being slidably disposed in the second groove 2220. It can be understood that by setting the first slide groove 2210 and the second slide groove 2220 opposite to each other on both sides of the guide slide groove 220, and setting the first sliding part 330 and the second sliding part 340 opposite to each other on both sides of the gear position fixing cover 300, with the first sliding part 330 slidably set in the first slide groove 2210 and the second sliding part 340 slidably set in the second slide groove 2220, the first sliding part 330 and the second sliding part 340 cooperate to enable the sliding cover 200 to slide smoothly relative to the gear position fixing cover 300.
[0038] Combination Figure 1 and Figure 2 As shown, in one embodiment, the sliding toggle 210 includes a rigid rod 2110 and an elastic contact 2120 disposed at the end of the rigid rod 2110. The elastic contact 2120 is adapted to the shape of the positioning groove 3111 and is movably disposed within the positioning groove 3111. It can be understood that the rigid rod 2110 of the sliding toggle 210 is made of stainless steel, and the elastic contact 2120 at the end is integrally molded from silicone material. The rigid rod 2110 provides stable support, while the elastic contact 2120 achieves a tight fit with the positioning groove 3111 through deformation, providing clear tactile feedback during sliding while avoiding noise caused by rigid contact.
[0039] Combination Figure 1 and Figure 2 As shown, in one embodiment, there are two positioning rails 3110, each of which is disposed on the inner wall of the groove along with the other positioning rail 3110. It can be understood that one positioning rail 3110 is disposed on each of the left and right inner walls of the sliding groove 310, and the two positioning rails 3110 are symmetrically distributed. The sliding member 210 engages with the positioning rail 3110 respectively. This makes the sliding member 210 move more smoothly during the movement of the positioning rail 3110, avoiding jamming caused by unilateral force.
[0040] Combination Figure 1 and Figure 4 As shown, in one embodiment, the projected area of the first slide groove 2210 is equal to the projected area of the second slide groove 2220, and the projected area of the first sliding part 330 is equal to the projected area of the second sliding part 340. It can be understood that by limiting the projected areas of the first slide groove 2210 and the second slide groove 2220 to be equal, and the projected areas of the first sliding part 330 and the second sliding part 340 to be equal, the first sliding part 330 can uniformly cooperate with the second sliding part 340 to slide in the second slide groove 2220 when sliding in the first slide groove 2210. This makes the sliding cover 200 more stable and the frictional stress distribution more uniform during sliding.
[0041] Combination Figure 1 , Figure 3 and Figure 5 As shown, in one embodiment, the gear position fixing cover 300 has a protruding connecting portion 320, which is located at one end opposite to the earcup body 100. The sliding cover 200 has a connecting port 230 on the side opposite to the earcup body 100, and the connecting portion 320 is located at the connecting port 230. It can be understood that the protruding connecting portion 320 on the gear position fixing cover 300, coupled with its location at the connecting port 230, and the fact that one end of the gear position fixing cover 300 is connected to the earcup body 100 while the connecting portion 320 at the other end is located at the connecting port 230 of the sliding cover 200, makes the gear position fixing cover 300 more secure and stable during the sliding of the sliding cover 200.
[0042] like Figure 1 As shown, in one embodiment, the gear position fixing cover 300 is detachably connected to the sliding cover 200. It can be understood that by designing the gear position fixing cover 300 to be detachably connected to the sliding cover 200, this detachable connection further facilitates the assembly and replacement of components between the gear position fixing cover 300 and the sliding cover 200, reducing production costs and user operating costs.
[0043] This application also includes an earphone device, comprising the earphone level adjustment structure 10 described in any of the above embodiments. It is understood that by applying the earphone level adjustment structure 10 disclosed herein to an earphone device, not only is positioning achieved during sliding through the cooperation between the positioning rail 3110 and the sliding dial 210, preventing excessive sliding of the sliding cover 200 and thus making it difficult to adjust to a suitable level for earphone wearing, but also the soft properties of the soft rubber layer further ensure that the sliding dial 210 always presses against the surface of the soft rubber layer, preventing noise caused by friction between the sliding dial 210 and the positioning rail 3110.
[0044] Compared with the prior art, this disclosure has at least the following advantages:
[0045] The earcup body 100 is used to receive the sound emitted by the device. The earcup body 100 is fixedly connected to the gear position fixing cover 300, so that the earcup body 100 is fixedly connected to the gear position fixing cover 300. The sliding cover 200 is slidably sleeved on the gear position fixing cover 300, so that the sliding cover 200 can slide relative to the gear position fixing cover 300. Since the sliding cover 200 is provided with a sliding lever 210 on the side near the sliding groove 310, and the inner wall of the sliding groove 310 is provided with a positioning rail 3110, when the sliding cover 200 slides relative to the gear position fixing cover 300, the sliding lever 210 will move and abut against the positioning rail 3110. Furthermore, the positioning rail 3110 has multiple positioning grooves 3111. Each positioning groove 3111 is spaced apart from another positioning groove 3111 on the inner wall of the sliding groove 310. When the sliding cover 200 drives the sliding dial 210 to move on the positioning rail 3110, the positioning end of the sliding dial 210 will move from one positioning groove 3111 to another positioning groove 3111. This allows the user to position the sliding cover 200 during the sliding process by cooperating with the positioning rail 3110 and the sliding dial 210, thus preventing the sliding cover 200 from sliding excessively and making it difficult to adjust to the appropriate position for wearing the headphones.
[0046] Furthermore, the positioning rail 3110 includes a shaping component and a soft rubber layer covering the shaping component. The sliding paddle 210 abuts against the soft rubber layer. By designing the positioning rail 3110 as a shaping component made of rigid material and a soft rubber layer covering the shaping component, noise generated by friction between the sliding paddle 210 and the positioning rail 3110 is avoided. At the same time, the soft rubber layer covering the shaping component reduces the noise generated by the collision between the positioning rail 3110 and the sliding paddle 210.
[0047] The embodiments described above are merely illustrative of several implementations of this disclosure, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this disclosure, and these all fall within the protection scope of this disclosure. Therefore, the protection scope of this patent should be determined by the appended claims.
Claims
1. A headphone level adjustment structure, characterized in that, The device includes an earcup body, a sliding cover, and a position fixing cover. The earcup body is connected to the position fixing cover, and the position fixing cover is slidably fitted onto the sliding cover. The position fixing cover has a sliding groove, and a positioning rail is provided on the inner wall of the sliding groove. A sliding paddle is provided on the side of the sliding cover near the sliding groove. When the sliding cover slides relative to the position fixing cover, the sliding paddle moves and abuts against the positioning rail. The positioning rail includes a shaping component and a soft rubber layer covering the shaping component. The positioning rail has multiple positioning grooves, which are spaced apart on the inner wall of the sliding groove. The sliding pusher abuts against the soft rubber layer. The thickness of the soft rubber layer is between 3mm and 5mm.
2. The headphone level adjustment structure according to claim 1, characterized in that, The sliding cover has a guide groove, and the gear position fixing cover is located in the guide groove.
3. The headphone level adjustment structure according to claim 2, characterized in that, The inner wall of the guide groove is provided with a first groove and a second groove, and the first groove and the second groove are disposed opposite to each other on both sides of the guide groove; the outer peripheral wall of the gear position fixing cover is provided with a first sliding part and a second sliding part, the first sliding part and the second sliding part are disposed opposite to each other on both sides of the gear position fixing cover, the first sliding part is slidably disposed in the first groove, and the second sliding part is slidably disposed in the second groove.
4. The headphone level adjustment structure according to claim 1, characterized in that, The sliding paddle includes a rigid rod and an elastic contact disposed at the end of the rigid rod. The elastic contact is adapted to the shape of the positioning groove and is movably disposed within the positioning groove.
5. The headphone level adjustment structure according to claim 1, characterized in that, The number of positioning rails is two, and each positioning rail is disposed on the inner wall of the sliding groove along with the other positioning rail.
6. The headphone level adjustment structure according to claim 3, characterized in that, The projected area of the first slide groove is equal to the projected area of the second slide groove, and the projected area of the first sliding part is equal to the projected area of the second sliding part.
7. The headphone level adjustment structure according to claim 1, characterized in that, The gear position fixing cover has a connecting part, and the sliding cover has a connecting port on the side opposite to the ear cup body. The connecting part is located at the connecting port.
8. The headphone level adjustment structure according to claim 7, characterized in that, The gear position fixing cover is detachably connected to the sliding cover.
9. A headphone device, characterized in that, The headphone gear adjustment structure includes any one of claims 1 to 8.