Headband device adjusting structure and headphone

Abstract

The embodiment of the invention discloses a headband equipment adjusting structure and a headphone. A main body part is provided with a slideway and a sliding surface. The damping part is arranged on the sliding arm, and when the sliding arm slides along the sliding way, the damping part can be driven to move along the sliding face. The limiting structure is fixedly connected with the sliding arm so that the elastic piece can be compressed through cooperation of the limiting structure and the damping sliding block, and the elastic piece can apply positive pressure to the sliding face through the damping sliding block. Therefore, the elastic piece can improve the friction force between the damping sliding block and the sliding surface, so that the damping part can provide a greater damping effect. Meanwhile, when the headband equipment adjusting structure is used for a long time, even if the damping sliding block or the sliding face is abraded to a certain degree, the elastic piece can also ensure that the damping sliding block and the sliding face are tightly attached together, and the service life of the headband equipment adjusting structure is prolonged. In addition, the elastic piece can absorb vibration generated by the damping part in the sliding process through deformation, so that the movement of the sliding arm is more stable.

Description

Technical Field

[0001] This invention relates to the field of headphone technology, and more particularly to a headband adjustment structure and a headphone. Background Technology

[0002] Headband headphones need to fit different head sizes, and wearers can adjust the length of the headband by pulling it down. However, with prolonged use, the length adjustment mechanism is prone to wear and tear, affecting the user experience. Therefore, improving the lifespan of the length adjustment mechanism and enhancing the user experience is a problem that needs to be addressed. Summary of the Invention

[0003] In view of this, embodiments of the present invention provide a headband device adjustment structure and a headphone, which utilizes an elastic element to increase the friction of the damping part, thereby increasing the service life of the adjustment component.

[0004] According to a first aspect of the present invention, a headband device adjustment structure is provided, the headband device adjustment structure comprising:

[0005] The main body has a slide rail and a sliding surface, the sliding surface extending along the length direction of the slide rail; and

[0006] An adjustment assembly includes a sliding arm and a damping part. The damping part includes a damping slider, an elastic element, and a limiting structure. The adjustment assembly is slidably disposed on the slide rail via the sliding arm. The damping part is fixedly connected to the sliding arm via the limiting structure. The elastic element abuts against the damping slider and the limiting structure. The elastic element presses against the damping slider on the sliding surface and generates elastic deformation, and friction is generated between the damping slider and the sliding surface.

[0007] Furthermore, the limiting structure includes a limiting member, which has a first limiting surface;

[0008] The damping slider has a second limiting surface and a contact surface. The contact surface abuts against the sliding surface. The second limiting surface and the first limiting surface are spaced apart and form an accommodating space on opposite sides. The elastic element is disposed in the accommodating space, and one end of the elastic element abuts against the first limiting surface and the other end abuts against the second limiting surface.

[0009] Furthermore, the elastic element includes a first contact end and a second contact end;

[0010] The second limiting surface has a slot, the second contact end abuts against the first limiting surface, and the first contact end abuts against the slot.

[0011] Furthermore, the elastic element includes a disc spring, both the first contact end and the second contact end are circular holes, and the diameter of the first contact end is larger than that of the second contact end;

[0012] The first limiting surface is a plane and abuts against the second contact end.

[0013] Furthermore, the slot has a first positioning surface and a second positioning surface extending circumferentially along the disc spring, and the first positioning surface is located inside the second positioning surface;

[0014] The disc spring has an inner surface facing the center of the disc spring and extending from the end face of the first contact end to the end face of the second contact end.

[0015] The inner side near the first contact end abuts against the first positioning surface, and the end face of the first contact end abuts against the second positioning surface.

[0016] Furthermore, the limiting member includes a top plate and a side plate connected to the top plate. The top plate forms the first limiting surface on one side facing the sliding arm, and the side plate bends toward the damping slider to form a limiting groove with the top plate.

[0017] At least a portion of the damping slider is disposed in the limiting groove and abuts against the inner wall of the limiting groove, and the contact surface is located on the side of the damping slider away from the top plate.

[0018] Furthermore, the limiting structure also includes:

[0019] The first fixing component includes a first connecting end and a second connecting end, wherein the first connecting end is fixedly connected to the sliding arm and the second connecting end is fixedly connected to the top plate.

[0020] Furthermore, the top plate has a first connecting hole, and the damping slider has a second connecting hole;

[0021] The first fixing member further includes a connecting rod, with the first connecting end and the second connecting end respectively disposed at both ends of the connecting rod, and the connecting rod passing through the first connecting hole and the second connecting hole in sequence.

[0022] Furthermore, the side plate includes a plurality of plates spaced apart, the plurality of plates abutting against a portion of the side surface of the damping slider and spaced apart from the sliding surface.

[0023] Furthermore, the sliding arm has two positioning grooves, which are arranged at intervals toward the damping part and along the extension direction of the slide rail;

[0024] The plurality of plates includes two first plates corresponding to the two positioning slots respectively, and at least a portion of the first plates extends into the corresponding positioning slots.

[0025] Furthermore, the main body includes a fixing frame, the fixing frame includes a main body and two protrusions, the main body has the slide rail with an opening, the two protrusions protrude from the main body and form two sliding surfaces, the two protrusions are located on both sides of the opening and extend along the length direction of the slide rail;

[0026] The first plate includes a connecting sidewall and a limiting arm. One side of the connecting sidewall is connected to the top plate, and the other side is connected to the limiting arm and has two clearance grooves. The two clearance grooves are correspondingly provided with the two protrusions, and the limiting arm extends into the corresponding positioning groove.

[0027] Furthermore, the headband device adjustment structure also includes a lubricating medium;

[0028] The end of the protrusion has a receiving groove, which is recessed from the sliding surface into the main body, and the lubricating medium is disposed in the receiving groove;

[0029] The contact surface moves to the receiving groove, and the contact surface comes into contact with the lubricating medium.

[0030] Furthermore, the plurality of plates also includes two pairs of second plates, which are spaced apart in the width direction of the slide.

[0031] The damping slider also includes two protrusions corresponding to the two pairs of second plates, the protrusions extending between the corresponding two second plates.

[0032] Furthermore, the main body also includes:

[0033] The shell includes a first shell, a second shell, and a mounting bracket. The second shell and the first shell are fastened together to form a receiving cavity. The fixing bracket is disposed in the receiving cavity, and the mounting bracket is disposed in the receiving cavity.

[0034] The headband device adjustment structure also includes:

[0035] Sleeve, with a mounting bracket positioned near the sound-producing part; and

[0036] The fixing pin has a U-shaped structure, and its two ends are inserted into the pin holes formed by the fixing frame and the sleeve to fix the sleeve.

[0037] Furthermore, the sleeve has two first grooves located on both sides of the sleeve;

[0038] The second housing has a first mounting hole, and the mounting bracket has a second mounting hole and two second grooves;

[0039] The mounting bracket is disposed on the second housing, the first mounting hole and the second mounting hole correspond to each other, the sleeve passes through the second mounting hole and the first mounting hole, and the two second grooves respectively engage with the two first grooves to form the two pin holes respectively.

[0040] Furthermore, the shell portion also includes a plurality of second fasteners;

[0041] The fixing frame has a plurality of first fixing holes corresponding to the plurality of second fixing members, and the mounting frame has a plurality of second fixing holes corresponding to the plurality of second fixing members;

[0042] The fixing bracket is disposed on the mounting bracket, and the second fixing member passes through the corresponding first fixing hole and is connected to the corresponding second fixing hole.

[0043] Secondly, embodiments of the present invention also provide a headset, the headset comprising:

[0044] According to the headband device adjustment structure in the first aspect above, both the main body and the adjustment assembly are two in number and are correspondingly arranged; and

[0045] The two sound-producing parts are respectively connected to the two sliding arms.

[0046] The headband adjustment structure and headphones of this invention feature a slide rail and a sliding surface on the main body. A damping part is disposed on the sliding arm, which, when sliding along the slide rail, drives the damping part to move along the sliding surface. A limiting structure is fixedly connected to the sliding arm, compressing the elastic element through the cooperation of the limiting structure and the damping slider, causing the elastic element to apply positive pressure to the sliding surface through the damping slider. This increases the friction between the elastic element and the sliding surface, allowing the damping part to provide a greater damping effect. Furthermore, even with wear on the damping slider or sliding surface during prolonged use, the elastic element ensures a tight fit between the damping slider and the sliding surface, increasing the lifespan of the headband adjustment structure. Additionally, the elastic element can absorb vibrations generated during sliding through deformation, resulting in smoother movement of the sliding arm. Attached Figure Description

[0047] The above and other objects, features and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0048] Figure 1 This is a schematic diagram of the structure of a headset according to an embodiment of the present invention;

[0049] Figure 2 This is an exploded view of the headband device adjustment structure according to an embodiment of the present invention;

[0050] Figure 3 This is an exploded view of one side of the adjustment component according to an embodiment of the present invention;

[0051] Figure 4 This is an exploded view of the other side of the adjustment component according to an embodiment of the present invention;

[0052] Figure 5 This is a partial schematic diagram of the adjustment component according to an embodiment of the present invention;

[0053] Figure 6 This is a schematic diagram of the motion state of the adjustment component according to an embodiment of the present invention;

[0054] Figure 7 yes Figure 6 Schematic diagram of the cross section at point AA;

[0055] Figure 8 yes Figure 7 A magnified view of a portion of point B in the middle;

[0056] Figure 9 This is an exploded view of the fixing frame and the second fixing frame according to an embodiment of the present invention;

[0057] Figure 10 yes Figure 9 Enlarged schematic diagram of region B in the middle;

[0058] Figure 11 This is an exploded view of the sleeve, mounting bracket, and fixing pin according to an embodiment of the present invention.

[0059] Explanation of reference numerals in the attached figures:

[0060] 1-Adjustment component;

[0061] 11-Sliding arm; 111-Positioning groove; 112-First connector; 113-Second connector; 114-Connector; 1141-Third limiting surface;

[0062] 12-Damping section; 121-Accommodation space;

[0063] 13-Damping slider; 131-Contact surface; 132-Second limiting surface; 1321-Slot; 1322-First positioning surface; 1323-Second positioning surface; 133-Second connecting hole; 134-Protrusion;

[0064] 14-Elastic element; 141-Second contact end; 142-First contact end; 143-Inner surface;

[0065] 15-Limiting structure;

[0066] 151-Limiting component; 1511-First limiting surface; 1512-Limiting groove;

[0067] 152-First fastener; 1521-First connecting end; 1522-Second connecting end; 1523-Connecting rod;

[0068] 2-Main body;

[0069] 21-Slide; 211-Opening; 212-Fourth limiting surface; 22-Sliding surface;

[0070] 31-Top plate; 311-First connecting hole;

[0071] 32-Side plate; 321-First plate; 3211-Connecting side wall; 3212-Limiting arm; 3213-Avoidance groove;

[0072] 322 - Second plate;

[0073] 4-Fixed bracket;

[0074] 41-Main body; 42-Protrusion; 421-Accommodating groove; 43-First fixing hole;

[0075] 5-Voice production part;

[0076] 61-Sleeve; 611-First groove; 62-Fixing pin;

[0077] 7-Shell;

[0078] 71-First shell;

[0079] 72-Second housing; 721-First mounting hole;

[0080] 73-Mounting bracket; 731-Second mounting hole; 732-Second groove; 733-Second fixing hole;

[0081] 74-Pin hole;

[0082] 75 - Second fastener. Detailed Implementation

[0083] The present invention is described below based on embodiments, but the invention is not limited to these embodiments. In the detailed description of the invention below, certain specific details are described in detail. Those skilled in the art will fully understand the invention even without these details. To avoid obscuring the essence of the invention, well-known methods, processes, flows, elements, and circuits are not described in detail.

[0084] Furthermore, those skilled in the art should understand that the accompanying drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale.

[0085] Unless the context explicitly requires it, words such as "including" or "contains" throughout the application should be interpreted as including rather than exclusive or exhaustive; that is, meaning "including but not limited to".

[0086] In the description of this invention, it should be understood that the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0087] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0088] For ease of explanation, spatially related terms such as “inside,” “outside,” “below,” “below,” “lower,” “above,” “upper,” etc., are used herein to describe the relationship between one element or feature illustrated in the figure and another. It will be understood that spatially related terms may be intended to encompass different orientations of the device in use or operation besides those depicted in the figure. For example, if the device in the figure is flipped, an element described as “below” or “below” another element or feature would then be positioned “above” that other element or feature. Thus, the exemplified term “below” can encompass both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially related descriptive terms used herein should be interpreted accordingly.

[0089] Figure 1 This is a schematic diagram of the structure of the headphones in this embodiment. Only part of the headphone structure is shown in the figure; the location of the sound-emitting part 5 is indicated by a dotted line.

[0090] In some implementations, such as Figure 1 As shown, the headphones in this embodiment include a headband body 41 and a sound-emitting part 5. The sound-emitting part 5 includes a speaker.

[0091] Specifically, the headband body 41 includes two headband adjustment structures. Each headband adjustment structure includes an adjustment component 1 and a main body 2. That is, the headband body 41 includes two adjustment components 1 and two main body parts 2. Two sound-emitting parts 5 are respectively connected to the two adjustment components 1, so that the distance between the sound-emitting parts 5 and the headband body 41 can be adjusted via the adjustment components 1, allowing the headphones to adapt to different head circumferences of the wearer.

[0092] Figure 2 This is an exploded view of the headband device adjustment structure in this embodiment.

[0093] In some implementations, such as Figure 2 As shown, the main body 2 has a slide 21 and a sliding surface 22 extending along the length of the slide 21. Both the main body 2 and the slide 21 have a certain curvature, allowing the main body 2 to better adapt to the wearer's head contour. The adjustment assembly 1 includes a sliding arm 11 and a damping part 12. The damping part 12 provides a damping effect when the sliding arm 11 moves.

[0094] Specifically, the sliding arm 11 is curved, allowing it to extend and retract within the curved slide rail 21. The sliding arm 11 has a first connector 112 and a second connector 113. The first connector 112 is rotatably connected to the sound-emitting part 5, enabling the sliding arm 11 to move the sound-emitting part 5 closer to or further away from the main body 2, thereby changing the size of the headphones. Simultaneously, the first connector 112 can also change the orientation of the sound-emitting part 5, facilitating rotation of the sound-emitting part 5 when storing the headphones. A damping part 12 is located at the second connector 113, which moves when the sound-emitting part 5 is pulled by the wearer.

[0095] Figure 3 and Figure 4 This is an exploded view of the adjustment component 1 in this embodiment. Figure 5 This is a partial schematic diagram of the adjustment component 1 in this embodiment.

[0096] Further reference Figures 3-5 As shown, the damping part 12 includes a damping slider 13, an elastic element 14, and a limiting structure 15. The damping part 12 is fixedly connected to the sliding arm 11 through the limiting structure 15. The sliding arm 11 has a hollow structure, and a wire for supplying power to the sound-generating part 5 can be provided on the inner side of the sliding arm 11.

[0097] Figure 6 This is a schematic diagram of the motion state of the adjustment component 1 in this embodiment. Figure 7 yes Figure 6 A cross-sectional view at point AA. The outline of elastic element 14 is shown with a thick dashed line.

[0098] In some implementations, such as Figure 6As indicated by the arrow, the adjustment component 1 is slidably mounted on the slide rail 21 via the sliding arm 11. Further referencing... Figure 7 As shown, the elastic element 14 abuts against the damping slider 13 and the limiting structure 15. The elastic element 14 presses the damping slider 13 against the sliding surface 22 and generates elastic deformation, and friction is generated between the damping slider 13 and the sliding surface 22.

[0099] Specifically, the elastic element 14 provides elastic force to the damping slider 13 through its own elastic deformation, causing the damping slider 13 to fit tightly against the sliding surface 22, generating static or dynamic friction between them. When the wearer moves the headphones by holding the headband body 41, the damping slider 13 and the sliding surface 22 will generate static friction, preventing the sound-producing part 5 from easily moving. When the wearer pulls the sound-producing part 5 away from the headband body 41 or pushes the sound-producing part 5 closer to the headband body 41, the damping slider 13 and the sliding surface 22 will generate dynamic friction, reducing the speed of distance change and helping the wearer to make precise adjustments to the size, thus improving the user experience. The damping slider 13 can be made of polyoxymethylene (POM), giving it certain self-lubricating properties and good wear resistance. This ensures that the damping of the two adjustment components 1 remains as similar as possible during long-term use.

[0100] In summary, the headband adjustment structure in this embodiment has a slide rail 21 and a sliding surface 22 on the main body 2. A damping part 12 is disposed on the sliding arm 11. When the sliding arm 11 slides along the slide rail 21, it drives the damping part 12 to move along the sliding surface 22. A limiting structure 15 is fixedly connected to the sliding arm 11, so that the limiting structure 15 and the damping slider 13 cooperate to compress the elastic member 14, causing the elastic member 14 to apply positive pressure to the sliding surface 22 through the damping slider 13. Therefore, the elastic member 14 can increase the friction between the damping slider 13 and the sliding surface 22, allowing the damping part 12 to provide a greater damping effect. Simultaneously, during long-term use of the headband adjustment structure, even if the damping slider 13 or the sliding surface 22 experiences a certain degree of wear, the elastic member 14 can ensure that the damping slider 13 and the sliding surface 22 are tightly fitted together, increasing the service life of the headband adjustment structure. In addition, the elastic element 14 can absorb the vibration generated by the damping part 12 during sliding through deformation, making the movement of the sliding arm 11 more stable.

[0101] In some implementations, such as Figure 3 , Figure 4 and Figure 7As shown, the limiting structure 15 includes a limiting member 151, which has a first limiting surface 1511. The damping slider 13 has a second limiting surface 132 and a contact surface 131, which abuts against the sliding surface 22. The second limiting surface 132 and the first limiting surface 1511 are spaced apart and form an accommodating space 121 on opposite sides. An elastic member 14 is disposed in the accommodating space 121, with one end of the elastic member 14 abutting against the first limiting surface 1511 and the other end abutting against the second limiting surface 132. Optionally, the elastic member 14 can be configured as a compression spring, with both ends of the compression spring abutting against the limiting structure 15 and the damping slider 13, respectively. In this embodiment, the accommodating space 121 is used to house the elastic member 14, preventing the elastic member 14 from shifting during the movement of the adjusting component 1. Furthermore, the contact surface 131 and the sliding surface 22 are arranged parallel to each other, so that the mutual friction between them can generate damping of the same magnitude.

[0102] In some implementations, such as Figure 3 and Figure 4 As shown, the elastic element 14 includes a first contact end 142 and a second contact end 141. The second limiting surface 132 has a groove 1321, the second contact end 141 abuts against the first limiting surface 1511, and the first contact end 142 abuts against the groove 1321. Thus, in this embodiment, the groove 1321 is used to prevent the elastic element 14 from moving within the accommodating space 121 when compressed.

[0103] Figure 8 yes Figure 7 A magnified view of a portion of point B in the middle.

[0104] In some implementations, such as Figures 3-4 and Figures 7-8 As shown, the elastic element 14 includes a disc spring. Both the first contact end 142 and the second contact end 141 are circular holes, and the diameter of the first contact end 142 is larger than that of the second contact end 141. The first limiting surface 1511 is planar and abuts against the second contact end 141. In this embodiment, the first limiting surface 1511 is planar. When the disc spring is compressed, the second contact end 141 moves towards the first contact end 142, and simultaneously, the second contact end 141 can generate a certain contraction movement along the first limiting surface 1511, which helps the disc spring to undergo elastic deformation.

[0105] In some implementations, such as Figures 3-4 and Figures 7-8As shown, the slot 1321 has a first positioning surface 1322 and a second positioning surface 1323 extending circumferentially along the disc spring, with the first positioning surface 1322 located inside the second positioning surface 1323. The disc spring has an inner surface 143 facing the center of the disc spring and extending from the end face of the first contact end 142 to the end face of the second contact end 141. The side of the inner surface 143 near the first contact end 142 abuts against the first positioning surface 1322, and the end face of the first contact end 142 abuts against the second positioning surface 1323.

[0106] Therefore, when the first limiting surface 1511 presses the disc spring against the damping slider 13, the second contact end 141 and the first contact end 142 approach each other, causing the disc spring to compress and deform. In this form, the second positioning surface 1323 will abut against the end face of the first contact end 142 (as shown in region I in the figure), thereby limiting the expansion and deformation of the first contact end 142 and further improving the elastic force of the disc spring. This allows the disc spring to provide sufficient elastic force even with a small deformation range. At the same time, it ensures that the disc spring will not move within the accommodating space 121.

[0107] In some implementations, such as Figure 3 and Figure 4 As shown, the limiting member 151 includes a top plate 31 and a side plate 32 connected to the top plate 31. The top plate 31 forms a first limiting surface 1511 on the side facing the sliding arm 11. The side plate 32 bends toward the damping slider 13 and forms a limiting groove 1512 between itself and the top plate 31. At least a portion of the damping slider 13 is disposed in the limiting groove 1512 and abuts against the inner wall of the limiting groove 1512. The contact surface 131 is located on the side of the damping slider 13 away from the top plate 31. During the reciprocating movement of the sliding arm 11, the damping slider 13 can be locked in the limiting groove 1512 to prevent the damping slider 13 from swaying or deforming during sliding.

[0108] In some implementations, such as Figure 3 As shown, the limiting structure 15 also includes a first fixing member 152. The first fixing member 152 includes a first connecting end 1521 and a second connecting end 1522. The first connecting end 1521 is fixedly connected to the sliding arm 11, and the second connecting end 1522 is fixedly connected to the top plate 31. Thus, the top plate 31 and the sliding arm 11 are connected together by the first fixing member 152, so that the damping slider 13 moves together with the sliding arm 11.

[0109] In some implementations, such as Figures 3-4 As shown, the top plate 31 has a first connecting hole 311, and the damping slider 13 has a second connecting hole 133. The first fixing member 152 also includes a connecting rod 1523, with a first connecting end 1521 and a second connecting end 1522 respectively disposed at both ends of the connecting rod 1523, and the connecting rod 1523 passing through the first connecting hole 311 and the second connecting hole 133 in sequence.

[0110] Specifically, the first fixing element 152 is a screw. The first connecting end 1521 is a nut, which connects to the side of the top plate 31 opposite to the sliding arm 11. The second connecting end 1522 is a threaded section, which screws into the threaded hole of the sliding arm 11. The connecting rod 1523 passes sequentially through the first connecting hole 311, the disc spring, and the second connecting hole 133. In this embodiment, the aforementioned positive pressure is applied by the screw, and the disc spring is deformed by the screw pressing against it. The operator can adjust the compression of the disc spring by changing the screwing depth.

[0111] In some implementations, such as Figures 3-5 As shown, the side plate 32 includes multiple plates spaced apart. These plates abut against portions of the side surfaces of the damping slider 13 and are spaced apart from the sliding surface 22. During the friction between the damping slider 13 and the sliding surface 22, the multiple plates prevent the damping slider 13 from easily wobbling, ensuring that the contact surface 131 and the sliding surface 22 are stably in contact.

[0112] Figure 9 This is an exploded view of the fixture 4 and the second fixture 4 in this embodiment.

[0113] In some implementations, such as Figure 3 and Figure 5 As shown, the sliding arm 11 has two positioning grooves 111, which face the damping part 12 and are spaced apart along the extension direction of the slide rail 21 (e.g. Figure 9 (As shown by arrow a2 in the diagram). The plurality of plates includes two first plates 321 corresponding to the two positioning grooves 111 respectively, with at least a portion of the first plates 321 extending into the corresponding positioning grooves 111. In this embodiment, the two first plates 321 can drive the damping slider 13 to move along the length of the slide rail 21. Simultaneously, the cooperation of the two positioning grooves 111 and the two first plates 321 ensures that the limiting member 151 and the sliding arm 11 are stably fixed together, preventing the limiting member 151 from loosening.

[0114] In some implementations, such as Figure 2 and Figure 7 As shown, the main body 2 includes a fixing frame 4. The fixing frame 4 includes a main body 41 and two protrusions 42. The main body 41 has a slide rail 21 with an opening 211. The two protrusions 42 protrude from the main body 41 and form two sliding surfaces 22. The two protrusions 42 are located on both sides of the opening 211 and extend along the length of the slide rail 21. Further referencing... Figure 4As shown, the first plate 321 includes a connecting sidewall 3211 and a limiting arm 3212. One side of the connecting sidewall 3211 is connected to the top plate 31, and the other side is connected to the limiting arm 3212 and has two clearance grooves 3213. The two clearance grooves 3213 are correspondingly provided with two protrusions 42, and the limiting arm 3212 extends into the corresponding positioning groove 111.

[0115] Specifically, the protrusion 42 has a strip-shaped structure and extends parallel to the slide rail 21. The main body 2 also includes a shell 7. The shell 7 includes a first shell 71, a second shell 72, and a mounting bracket 73. The fixing bracket 4 is fixedly connected to the second shell 72 via the mounting bracket 73. The first shell 71 and the second shell 72 are interlocked to accommodate the fixing bracket 4 and the mounting bracket 73 in a accommodating cavity. The first connector 112 extends from the accommodating space 121 and connects to the sound-emitting part 5. In this embodiment, the sliding surface 22 consists of two first arc surfaces that bend towards the damping slider 13 and extend along the length of the slide rail 21. The contact surface 131 consists of two second arc surfaces that are opposite to the two first arc surfaces. The clearance groove 3213 is away from the fixing bracket 4 relative to the second arc surfaces. When the second arc surfaces abut against the first arc surfaces, the clearance groove 3213 prevents the protrusion 42 from being scratched. On the other hand, even if the damping slider 13 wears down, causing the limiting member 151 to move down, it can prevent the avoidance groove 3213 from directly colliding with the two protrusions 42.

[0116] Figure 10 yes Figure 9 An enlarged schematic diagram of region B in the middle, showing the area where the slip surface 22 is located using cross-sectional lines.

[0117] In some implementations, such as Figures 9-10 As shown, the headband adjustment structure also includes a lubricating medium. The end of the protrusion 42 has a receiving groove 421, which is recessed from the sliding surface 22 toward the main body 41. The lubricating medium is disposed in the receiving groove 421. When the contact surface 131 moves to the receiving groove 421, the contact surface 131 contacts the lubricating medium.

[0118] It is easy to understand that when headphones leave the factory, the headband adjustment mechanism has not been broken in, resulting in excessive friction between the contact surface 131 and the sliding surface 22. This can easily lead to excessive damping in the headband adjustment mechanism, affecting the user experience. Therefore, in this embodiment, a lubricating medium is pre-placed in the receiving groove 421. As the damping part 12 moves along the slide 21, it applies the lubricating medium to the sliding surface 22, thereby reducing the damping between the contact surface 131 and the sliding surface 22. After a period of use, as the lubricating medium decreases, the self-lubricating property of the damping slider 13 is used for lubrication.

[0119] Optionally, the lubricating medium can be a semi-solid lubricating oil. Semi-solid lubricating oils can be in a gel or paste form. Their components may include substances such as silicone oil or polytetrafluoroethylene (PTFE).

[0120] In some implementations, such as Figures 3-5 As shown, the multiple plates also include two pairs of second plates 322, which are spaced apart in the width direction of the slide rail 21. The damping slider 13 also includes two protrusions 134 corresponding to the two pairs of second plates 322, with the protrusions 134 extending between the corresponding two second plates 322. In this embodiment, the cooperation of the two protrusions 134 and the second plates 322 ensures that the second arc surface is always parallel to the first arc surface, preventing the damping slider 13 from swaying circumferentially along the screw during sliding.

[0121] In some implementations, such as Figure 2 and Figure 6 As shown, the headband adjustment structure also includes a sleeve 61 and a fixing pin 62. The sleeve 61 is mounted on the side of the mounting bracket 73 near the sound-generating part 5. The fixing pin 62 has a U-shaped structure, and both ends of the fixing pin 62 are inserted into the pin holes 74 formed by the fixing bracket 4 and the sleeve 61 to fix the sleeve 61. During the sliding of the sliding arm 11, the sleeve 61 can reduce the mutual wear between the sliding arm 11 and the fixing bracket 4.

[0122] Figure 11 This is an exploded view of the sleeve 61, mounting bracket 73, and fixing pin 62 in an embodiment of the present invention.

[0123] In some implementations, such as Figure 2 and Figure 11 As shown, the sleeve 61 has two first grooves 611. The two first grooves 611 are located on both sides of the sleeve 61. The second housing 72 has a first mounting hole 721. The mounting bracket 73 has a second mounting hole 731 and two second grooves 732. When the mounting bracket 73 is disposed on the second housing 72, the first mounting hole 721 and the second mounting hole 731 correspond, and the sleeve 61 can be inserted from the inside of the mounting bracket 73 (e.g., ...). Figure 11 As indicated by the middle arrow a1, the pins pass through both the second mounting hole 731 and the first mounting hole 721. In this configuration, the two second grooves 732 mate with the two first grooves 611 respectively, forming two pin holes 74. After the two ends of the fixing pin 62 are inserted, it can prevent the sleeve 61 from moving due to the friction of the sliding arm 11.

[0124] In some implementations, such as Figure 2 and Figure 9As shown, the housing 7 also includes a plurality of second fixing members 75. The fixing bracket 4 has a plurality of first fixing holes 43 corresponding to the plurality of second fixing members 75, and the mounting bracket 73 has a plurality of second fixing holes 733 corresponding to the plurality of second fixing members 75. The fixing bracket 4 is disposed on the mounting bracket 73, and the second fixing members 75 pass through the corresponding first fixing holes 43 and are connected to the corresponding second fixing holes 733.

[0125] Specifically, the second fixing member 75 can be a screw. The first fixing hole 43 can be a through hole, and the second fixing hole 733 can be a threaded hole. The screw passes through the first fixing hole 43 and is threaded into the second fixing hole 733. Thus, in this embodiment, the sleeve 61 can be first placed on the mounting bracket 73 and the second housing 72, and the two ends of the fixing pin 62 can be inserted into the two pin holes 74 respectively. Finally, multiple second fixing members 75 are used to connect the mounting bracket 73 and the fixing bracket 4. This simplifies the assembly process of the headband device adjustment structure.

[0126] In some implementations, such as Figure 7 As shown, the second connector 113 is also provided with a connector 114. The connector 114 is provided with two third limiting surfaces 1141 and a first threaded hole. The second connector 113 has a second threaded hole. The slide rail 21 also includes two fourth limiting surfaces 212 opposite to the opening 211, and the two fourth limiting surfaces 212 are located on both sides of the opening 211. When the screw is screwed into the first threaded hole and the second threaded hole, the two third limiting surfaces 1141 abut against the two fourth limiting surfaces 212 respectively. When the sliding arm 11 moves, the third limiting surfaces 1141 slide along the fourth limiting surfaces 212.

[0127] In an alternative implementation, the headband adjustment structure described in the above embodiments can be applied to headphones. The headphones include two main bodies 2, two adjustment components 1, and two sound-emitting parts 5. The two sound-emitting parts 5 are respectively connected to two sliding arms 11.

[0128] In summary, the headset in this embodiment has a slide rail 21 and a sliding surface 22 on the main body 2. A damping part 12 is provided on the sliding arm 11. When the sliding arm 11 slides along the slide rail 21, it can drive the damping part 12 to move along the sliding surface 22. A limiting structure 15 is fixedly connected to the sliding arm 11, so that the limiting structure 15 and the damping slider 13 cooperate to compress the elastic member 14, causing the elastic member 14 to apply positive pressure to the sliding surface 22 through the damping slider 13. Therefore, the elastic member 14 can increase the friction between the damping slider 13 and the sliding surface 22, allowing the damping part 12 to provide a greater damping effect. At the same time, during long-term use of the headband adjustment structure, even if the damping slider 13 or the sliding surface 22 experiences a certain degree of wear, the elastic member 14 can ensure that the damping slider 13 and the sliding surface 22 are tightly fitted together, increasing the service life of the headband adjustment structure. In addition, the elastic element 14 can absorb the vibration generated by the damping part 12 during sliding through deformation, making the movement of the sliding arm 11 more stable.

[0129] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. For those skilled in the art, the present invention can be modified and varied in various ways. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of the present invention should be included within the scope of protection of the present invention.

Claims

1. A headband device adjustment structure, characterized in that, The headband device adjustment structure includes: The main body has a slide rail and a sliding surface, the sliding surface extending along the length direction of the slide rail; and An adjustment assembly includes a sliding arm and a damping part. The damping part includes a damping slider, an elastic element, and a limiting structure. The adjustment assembly is slidably disposed on the slide rail via the sliding arm. The damping part is fixedly connected to the sliding arm via the limiting structure. The elastic element abuts against the damping slider and the limiting structure. The elastic element presses against the damping slider on the sliding surface and generates elastic deformation, and friction is generated between the damping slider and the sliding surface.

2. The headband adjustment structure according to claim 1, characterized in that, The limiting structure includes a limiting member, which has a first limiting surface; The damping slider has a second limiting surface and a contact surface. The contact surface abuts against the sliding surface. The second limiting surface and the first limiting surface are spaced apart and form an accommodating space on opposite sides. The elastic element is disposed in the accommodating space, and one end of the elastic element abuts against the first limiting surface and the other end abuts against the second limiting surface.

3. The headband adjustment structure according to claim 2, characterized in that, The elastic element includes a first contact end and a second contact end; The second limiting surface has a slot, the second contact end abuts against the first limiting surface, and the first contact end abuts against the slot.

4. The headband device adjustment structure according to claim 3, characterized in that, The elastic element includes a disc spring, and both the first contact end and the second contact end are circular holes, with the diameter of the first contact end being larger than that of the second contact end. The first limiting surface is a plane and abuts against the second contact end.

5. The headband adjustment structure according to claim 4, characterized in that, The slot has a first positioning surface and a second positioning surface extending circumferentially along the disc spring, and the first positioning surface is located inside the second positioning surface. The disc spring has an inner surface facing the center of the disc spring and extending from the end face of the first contact end to the end face of the second contact end. The inner side near the first contact end abuts against the first positioning surface, and the end face of the first contact end abuts against the second positioning surface.

6. The headband adjustment structure according to claim 2, characterized in that, The limiting member includes a top plate and a side plate connected to the top plate. The top plate forms a first limiting surface on one side facing the sliding arm, and the side plate bends toward the damping slider to form a limiting groove with the top plate. At least a portion of the damping slider is disposed in the limiting groove and abuts against the inner wall of the limiting groove, and the contact surface is located on the side of the damping slider away from the top plate.

7. The headband adjustment structure according to claim 6, characterized in that, The limiting structure further includes: The first fixing component includes a first connecting end and a second connecting end, wherein the first connecting end is fixedly connected to the sliding arm and the second connecting end is fixedly connected to the top plate.

8. The headband device adjustment structure according to claim 7, characterized in that, The top plate has a first connecting hole, and the damping slider has a second connecting hole; The first fixing member further includes a connecting rod, with the first connecting end and the second connecting end respectively disposed at both ends of the connecting rod, and the connecting rod passing through the first connecting hole and the second connecting hole in sequence.

9. The headband device adjustment structure according to claim 6, characterized in that, The side plate includes a plurality of plates spaced apart, the plurality of plates abutting against a portion of the side surface of the damping slider and spaced apart from the sliding surface.

10. The headband adjustment structure according to claim 9, characterized in that, The sliding arm has two positioning grooves, which are arranged at intervals towards the damping part and along the extension direction of the slide rail. The plurality of plates includes two first plates corresponding to the two positioning slots respectively, and at least a portion of the first plates extends into the corresponding positioning slots.

11. The headband device adjustment structure according to claim 10, characterized in that, The main body includes a fixing frame, which includes a main body and two protrusions. The main body has the slide rail with an opening. The two protrusions protrude from the main body and form two sliding surfaces. The two protrusions are located on both sides of the opening and extend along the length of the slide rail. The first plate includes a connecting sidewall and a limiting arm. One side of the connecting sidewall is connected to the top plate, and the other side is connected to the limiting arm and has two clearance grooves. The two clearance grooves are correspondingly provided with the two protrusions, and the limiting arm extends into the corresponding positioning groove.

12. The headband device adjustment structure according to claim 11, characterized in that, The headband device adjustment structure also includes a lubricating medium; The end of the protrusion has a receiving groove, which is recessed from the sliding surface into the main body, and the lubricating medium is disposed in the receiving groove; The contact surface moves to the receiving groove, and the contact surface comes into contact with the lubricating medium.

13. The headband device adjustment structure according to claim 9, characterized in that, The plurality of plates also includes two pairs of second plates, which are spaced apart in the width direction of the slide. The damping slider also includes two protrusions corresponding to the two pairs of second plates, the protrusions extending between the corresponding two second plates.

14. The headband device adjustment structure according to claim 11, characterized in that, The main body also includes: The shell includes a first shell, a second shell, and a mounting bracket. The second shell and the first shell are fastened together to form a receiving cavity. The fixing bracket is disposed in the receiving cavity, and the mounting bracket is disposed in the receiving cavity. The headband device adjustment structure also includes: Sleeve, with a mounting bracket positioned near the sound-producing part; and The fixing pin has a U-shaped structure, and its two ends are inserted into the pin holes formed by the fixing frame and the sleeve to fix the sleeve.

15. The headband adjustment structure according to claim 14, characterized in that, The sleeve has two first grooves located on both sides of the sleeve; The second housing has a first mounting hole, and the mounting bracket has a second mounting hole and two second grooves; The mounting bracket is disposed on the second housing, the first mounting hole and the second mounting hole correspond to each other, the sleeve passes through the second mounting hole and the first mounting hole, and the two second grooves respectively engage with the two first grooves to form the two pin holes respectively.

16. The headband device adjustment structure according to claim 14, characterized in that, The shell also includes a plurality of second fasteners; The fixing frame has a plurality of first fixing holes corresponding to the plurality of second fixing members, and the mounting frame has a plurality of second fixing holes corresponding to the plurality of second fixing members; The fixing bracket is disposed on the mounting bracket, and the second fixing member passes through the corresponding first fixing hole and is connected to the corresponding second fixing hole.

17. A type of over-ear headphone, characterized in that, The headphones include: According to any one of claims 1-16, the headband device adjustment structure comprises two main body parts and two corresponding adjustment components; and The two sound-producing parts are respectively connected to the two sliding arms.

Images