Adjustable earphone headband capable of sliding stably

Abstract

The utility model discloses a stable sliding adjustable earphone headband, which comprises a headband fixing mechanism and a headband sliding mechanism, the headband fixing mechanism comprises an arc plate, a shell and a backstop assembly, the middle part of the shell is provided with an opening cavity along the length direction, the arc plate covers the top of the opening cavity, and the backstop assembly is arranged in the middle of the shell. The head band sliding mechanism comprises a scale elastic piece and a sliding cover body, the scale elastic piece is installed along the top of the sliding cover body in an attached mode, one end of the sliding cover body is arranged in the sliding space and can slide along the sliding space, and the other end of the sliding cover body can slide along the sliding space. And an elastic limiting assembly for limiting the position of the sliding cover body is arranged between the sliding cover body and the shell. According to the technical scheme provided by the utility model, the elastic sheet is arranged on the shell, so that the thickness of the head band sliding main body is increased, and the stability of the sliding main body in the moving process is further improved.

Description

Technical Field

[0007] ,

[0006] , ,

[0001] The utility model belongs to the technical field of earphones, and particularly relates to an adjustable headband for earphones with stable sliding. Background Art

[0002] Headphones, as the name implies, are worn on the head rather than inserted into the ear canal, and are a type of earphones different from in-ear earplugs. In order to adapt to different head shapes, the general head-mounted components are designed with a length adjustment structure.

[0003] At present, the most common adjustment structure on the market is the elastic sheet type adjustment structure. The structure of the elastic sheet is simple and easy to manufacture, but there are significant defects. The thickness of the elastic sheet is relatively thin, and obvious jitter is likely to occur during the adjustment process, resulting in inaccurate adjustment effect and difficult to ensure the comfort of the earphones. This kind of jitter will also affect the user experience, and may even cause damage to the elastic sheet, shortening the service life of the earphones, and it is difficult to meet the personalized needs of users for different head shapes and wearing habits. Content of the Utility Model [[ID=~15]]

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide an adjustable headband for earphones with stable sliding.

[0005] The technical solution adopted by the utility model is as follows: An adjustable headband for earphones with stable sliding includes a headband fixing mechanism and a headband sliding mechanism. The headband fixing mechanism includes an arc plate, a shell and a stop component. An open cavity is arranged in the middle of the shell along its length direction. The arc plate covers the top of the open cavity, so that a one-sided open sliding space is formed between the arc plate and the open cavity. The headband sliding mechanism includes a scale elastic sheet and a sliding cover. The scale elastic sheet is attached and installed along the top of the sliding cover. One end of the sliding cover is arranged in the sliding space and can slide along the sliding space. An elastic limiting component for limiting the position of the sliding cover is arranged between the sliding cover and the shell.

[0006] In a preferred embodiment, the cross-section of the arc plate is in a circular arc structure. There are two arc plates. Two head support bars are arranged in parallel between the two arc plates. A compensation gap is arranged on the same arc surface between the two head support bars and on the arc plate. A positioning step is arranged on one end edge of the arc plate. A connecting plate bent downward is arranged at the other end of the arc plate. A soft sleeve covers the outer surfaces of the arc plate and the head support bars.

[0007] In a preferred embodiment, the cross-section of the shell is in a "C" shape structure. A limiting groove for accommodating the arc plate is formed by the upper edge of the side wall of the open cavity sinking downward. The shape of the end of the limiting groove is adapted to the shape of the positioning step. A plurality of positioning blocks extending upward above the limiting groove are also arranged at intervals at the top end of the shell. The positioning blocks abut against the arc plate.

[0008] In a preferred embodiment, an end of the housing away from the stop assembly protrudes upward to form a connecting column, the connecting column has a threaded hole, a light hole corresponding to the threaded hole is provided on the connecting plate, the connecting plate is locked and connected to the connecting column through a pre-tightening screw, a sliding groove with one end open is formed by inward depression of the side wall of the open cavity, and a positioning hole is provided at the edge of the end of the housing facing the stop assembly.

[0009] In a preferred embodiment, the stop assembly includes an upper stop cover and a lower stop cover that are covered with each other. Both the upper stop cover and the lower stop cover are in a "C" - shaped structure and enclose a stop space with openings at the front and back. A lower stop block protrudes upward from the top of the lower stop cover. The end of the housing facing the stop assembly extends into the stop space and abuts against the lower stop block. An upper stop block and positioning columns symmetrically distributed on both sides of the upper stop block protrude downward from the inner wall of the top of the upper stop cover. The positioning columns are fitted and clamped on the positioning holes and are locked and connected to the lower stop cover through screws.

[0010] In a preferred embodiment, the sliding cover body includes an upper sliding cover and a lower sliding cover that are covered with each other. A support plate for supporting the scale elastic piece extends from one end of the lower sliding cover away from the upper sliding cover. A scale surface is provided on the top surface of the scale elastic piece. The width of the support plate is smaller than the width of the scale elastic piece. When the scale elastic piece is installed on the support plate, the edge of the scale elastic piece extends into the sliding groove and can slide along the sliding groove for guiding. A second positioning hole is provided at the edge of the end of the scale elastic piece facing the sliding cover body. [[ID=​​​​​​In a preferred embodiment, two protruding ribs are arranged side by side on the tray, and the two protruding ribs and the tray together form a wire channel for the wire to pass through. The height of the protruding ribs is the same as the height of the top of the tray. Multiple protruding support columns are distributed at intervals on the side wall of the protruding ribs, and multiple sets of deformation compensation grooves are formed between the protruding ribs and the edge of the tray.

[0014] In a preferred embodiment, one end of the upper sliding cover is provided with a mounting head, and a connecting seat for connecting earmuffs is rotatably connected to the mounting head. The inner walls of the upper sliding cover have protruding second positioning posts on both sides, which are adapted to be snapped into the second positioning holes and locked to the lower sliding cover by screws.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0016] 1. In this utility model, a thickened shell is provided to install the scale spring, which can increase the overall thickness of the sliding body and thus improve the stability of the sliding body during movement. At the same time, the scale spring is set with scales to help users clearly identify the degree of ear cup adjustment, prevent the adjustment of the two ear cups from being misaligned, resulting in asymmetrical wearing of the headphones, and prevent the headphone imbalance from causing a bad user experience.

[0017] 2. In this utility model, the headband fixing mechanism and most of the components in the headband fixing mechanism are assembled by a snap-fit ​​mechanism, which effectively improves the structural optimization of the headphones while maintaining structural stability and achieving structural simplification.

[0018] 3. In this utility model, the headphone headband adopts a deformation compensation groove at multiple positions to eliminate deformation stress, so as to prevent deformation stress generated during adjustment and storage from damaging the headphone structure, thereby extending the service life of the headphone headband. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the entire utility model;

[0020] Figure 2 This is an exploded three-dimensional structural diagram of the entire utility model;

[0021] Figure 3 This is a partial cross-sectional planar structural schematic diagram of the present invention;

[0022] Figure 4 This is a three-dimensional structural diagram of the headband sliding mechanism and connecting seat combination in this utility model;

[0023] Figure 5This is a half-sectional three-dimensional structural diagram of the headband sliding mechanism combined with the connecting seat and the stop assembly in this utility model.

[0024] Figure 6 This is an exploded three-dimensional structural diagram of the headband sliding mechanism in this utility model;

[0025] Figure 7 This is a three-dimensional structural diagram of the shell in this utility model.

[0026] The markings in the diagram are: 10-connecting seat, 20-head belt sliding mechanism, 21-lower sliding cover, 211-socket, 212-protrusion stop, 213-support column, 214-protruding rib, 215-plate, 22-upper sliding cover, 221-mounting head, 222-second positioning column, 23-limiting spring, 24-scale spring, 241-pin, 242-second positioning hole, 30-head belt fixing mechanism, 31-arc plate, 311-compensation gap, 312-positioning step, 313-connecting plate, 32-shell, 321-connecting column, 322-positioning hole, 323-positioning block, 324-limiting groove, 325-limiting slot, 326-open cavity, 33-head support bar, 34-upper stop cover, 341-positioning column, 342-upper stop block, 35-lower stop cover, 351-lower stop block. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0028] A stable, sliding, adjustable headphone headband, see reference. Figure 1-7The headband includes a headband fixing mechanism 30 and a headband sliding mechanism 20. The headband fixing mechanism 30 includes an arc plate 31, a housing 32, and a stop assembly. An open cavity 326 is provided in the middle of the housing 32 along its length. The arc plate 31 covers the top of the open cavity 326, forming a sliding space with a single-sided opening between the arc plate 31 and the open cavity 326. The headband sliding mechanism 20 includes a scale spring 24 and a sliding cover. The scale spring 24 is attached to the top of the sliding cover, and a scale surface is provided on the top surface of the scale spring 24. One end of the sliding cover is located at... Within the sliding space, the sliding cover can slide along the sliding space. An elastic limiting component is provided between the sliding cover and the housing 32 to limit the position of the sliding cover. The thickened sliding cover is used to install the scale spring 24, which can increase the overall thickness of the headband sliding mechanism 20, thereby improving the stability of the headband sliding mechanism 20 during movement. At the same time, the scale surface provided on the scale spring 24 helps the user to clearly identify the degree of ear cup adjustment, preventing the adjustment of the two ear cups from being misaligned, resulting in asymmetrical wearing of the headphones, and preventing the headphone imbalance from causing a poor user experience.

[0029] Reference Figure 1 and Figure 2 As shown, the arc plate 31 has a circular arc-shaped cross-section. There are two arc plates 31, and two head support strips 33 are arranged side by side between the two arc plates 31. A compensation gap 311 on the same arc surface is provided between the two head support strips 33 and on the arc plate 31. A positioning step 312 is provided at one edge of the arc plate 31, and a downwardly bent connecting plate 313 is provided at the other end of the arc plate 31. The head support strip 33 is the supporting part that covers the top of the user's head. The compensation gap 311 between the arc plate 31 and the head support strip 33 can eliminate elastic deformation stress and extend the service life of the headphone headband. At the same time, the arc plate 31 and the head support strip 33 can also achieve a greater degree of deformation. The head support strip 33 is preferably made of steel strips. In other embodiments, it can also be made of materials such as aluminum alloy.

[0030] In addition, to ensure wearing comfort, a soft cover (not shown in the figure) will be wrapped around the outer surface of the arc plate 31 and the head support strip 33.

[0031] Furthermore, the shell 32 has a "U"-shaped cross-section. The upper edge of the sidewall of the open cavity 326 is recessed downward to form a limiting groove 324 for accommodating the arc plate 31. The end of the limiting groove 324 is adapted to the shape of the positioning step 312. Several positioning blocks 323 extending upward from the limiting groove 324 are also provided at intervals at the top of the shell. The positioning blocks 323 abut against the arc plate 31. The end of the shell 32 away from the stop assembly protrudes upward to form a connecting post 321. The connecting post 321 has a screw hole. The connecting plate 313 is provided with a light hole corresponding to the screw hole. 13 is locked to the connecting post 321 by pre-tightening screws. The side wall of the open cavity 326 is recessed inward to form a sliding groove 327 with one end open. The housing 32 has a positioning hole 322 on the end edge facing the stop assembly. Through the cooperation of the limiting groove 324 and the positioning block 323, the arc plate 31 can be assistedly positioned on the limiting groove 324. Then, the connecting plate 313 and the connecting post 321 are locked together by pre-tightening screws. This can effectively improve the structural optimization of the earphone while maintaining the structural stability of the housing 32 and the arc plate 31, and achieve structural simplification.

[0032] Furthermore, the stop assembly includes an upper stop cover 34 and a lower stop cover 35 that fit together. Both the upper stop cover 34 and the lower stop cover 35 have a "U"-shaped structure and together form a stop space with openings at the front and back. The top of the lower stop cover 35 protrudes upward to form a lower stop block 351. The housing 32 extends into the stop space towards the end of the stop assembly and abuts against the lower stop block 351. The inner wall of the top of the upper stop cover 34 protrudes downward to form an upper stop block 342 and symmetrically distributed on the upper stop... The positioning posts 341 on both sides of block 342 are adapted to be snapped into positioning holes 322 and locked to the lower stop cover 35 by screws. The lower stop block 351 can help limit the position of the housing 32. At the same time, during the assembly of the upper stop cover 34 and the lower stop cover 35, the housing 32 can be fixed in the stop space of the stop assembly by using the cooperation of positioning posts 341 and positioning holes 322, which effectively improves the structural optimization of the headphones and achieves structural simplification.

[0033] Reference Figure 4 and Figure 6As shown, the sliding cover includes an upper sliding cover 22 and a lower sliding cover 21 that fit together. The lower sliding cover 21 extends from one end away from the upper sliding cover 22 to form a support plate 215 for supporting the scale spring 24. The width of the support plate 215 is smaller than the width of the scale spring 24. When the scale spring 24 is installed on the support plate 215, the edge of the scale spring 24 extends into the sliding groove 327 and can slide along the sliding groove 327. The support plate 215 can support the scale spring 24, which can improve the strength of the sliding body and thus improve the stability of the sliding body during movement. At the same time, through the cooperation of the sliding groove 327 and the scale spring 24, the scale spring 24 can play an auxiliary guiding role when it moves in the housing 32, ensuring the stability during movement and making it less prone to shaking during adjustment.

[0034] Furthermore, one end of the scale spring 24 is provided with a pin 241, and one end of the support plate 215 is provided with a socket 211 that is adapted to be plugged into the pin 241. The upper surface of the end of the support plate 215 facing the socket 211 protrudes upward to form a stop protrusion 212. The scale spring 24 is provided with a groove that allows the stop protrusion 212 to pass through. When the headband sliding mechanism 20 moves to a limit position, the stop protrusion 212 abuts against the upper stop block 342. When the headband sliding mechanism 20 moves to another limit position, the support plate 215 abuts against the connecting post 321. Through the cooperation of the pin 241, the socket 211 and the stop protrusion 212, the scale spring 24 can be assistedly positioned on the support plate 215. At the same time, the cooperation of the stop protrusion 212 and the upper stop block 342 can prevent the headband sliding mechanism 20 from coming out of the headband fixing mechanism 30.

[0035] Furthermore, the elastic limiting component includes a limiting spring 23 and a limiting slot 325. The limiting spring 23 is disposed at the bottom of one end of the support plate 215 facing the socket 211. The limiting slot 325 includes a plurality of grooves spaced apart along the length direction in the open cavity 326. The limiting spring 23 is engaged in one of the grooves. Through the elastic engagement between the limiting spring 23 and the fixing member, the sliding force is easily controlled when sliding, making the feel consistent and the sliding force stable, thus improving the user experience.

[0036] Reference Figure 6 As shown, two protruding ribs 214 are arranged side by side on the support plate 215. The two protruding ribs 214 and the support plate 215 enclose a wire channel for wires to pass through. The height of the protruding ribs 214 is the same as the height of the top of the support plate 215. Multiple protruding support columns 213 are distributed at intervals on the side wall of the protruding ribs 214. Multiple sets of deformation compensation grooves are formed between the protruding ribs 214 and the edge of the support plate 215. The designed protruding ribs 214 and support columns 213 can increase the strength of the support plate 215 itself, increase the contact area with the scale spring 24, and improve the overall stability of the sliding body. In addition, the formed wire channel can also meet the requirements for the wires to pass through between the two ear cups.

[0037] Reference Figure 6 As shown, one end of the upper sliding cover 22 is provided with a mounting head 221. The mounting head 221 is rotatably connected to a connecting seat 10 for connecting earmuffs (not shown in the figure). The scale spring 24 is provided with a second positioning hole 242 facing the end edge of the sliding cover. The inner walls of the upper sliding cover 22 have protruding second positioning posts 222. The second positioning posts 222 are adapted to be snapped into the second positioning holes 242 and are locked to the lower sliding cover 21 by screws. Through the cooperation of the second positioning holes 242 and the second positioning posts 222, the scale spring 24 can be fixed in the space formed between the upper sliding cover 22 and the lower sliding cover 21, which can achieve a simplified structure.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A stable sliding adjustable headband for headphones, characterized in that, It includes a headband fixing mechanism and a headband sliding mechanism. The headband fixing mechanism includes an arc plate, a housing, and a stop component. An open cavity is provided in the middle of the housing along its length direction. The arc plate covers the top of the open cavity, forming a one-sided open sliding space between the arc plate and the open cavity. The headband sliding mechanism includes a scale elastic piece and a sliding cover body. The scale elastic piece is attached and installed along the top of the sliding cover body. One end of the sliding cover body is arranged in the sliding space and can slide along the sliding space. An elastic limit component for limiting the position of the sliding cover body is provided between the sliding cover body and the housing.

2. The adjustable headband with stable sliding as described in claim 1, characterized in that: The cross-section of the arc plate is in a circular arc structure. There are two arc plates. Two head support bars are arranged in parallel between the two arc plates. A compensation gap on the same arc surface is provided between the two head support bars and on the arc plate. A positioning step is provided at one end edge of the arc plate, and a connecting plate bent downward is provided at the other end of the arc plate.

3. The adjustable headband with stable sliding as described in claim 2, characterized in that: The cross-section of the housing is in a "C" shape structure. A limiting groove for accommodating the arc plate is formed by the downward depression of the upper edge of the side wall of the open cavity. The shape of the end of the limiting groove is adapted to that of the positioning step. A number of positioning blocks extending upward above the limiting groove are also provided at intervals at the top of the housing. The positioning blocks abut against the arc plate.

4. The adjustable headband with stable sliding as described in claim 3, characterized in that: A connecting column protrudes upward at the end of the housing away from the stop component. The connecting column has a screw hole. A light hole corresponding to the screw hole is provided on the connecting plate. The connecting plate is locked and connected to the connecting column through a pre-tightening screw. A sliding groove with one end open is formed by the inward depression of the side wall of the open cavity. A positioning hole is provided at the edge of the end of the housing facing the stop component.

5. The adjustable headband with stable sliding as described in claim 4, characterized in that: The stop component includes an upper stop cover and a lower stop cover that are covered with each other. Both the upper stop cover and the lower stop cover are in a "C" shape structure and enclose a stop space with openings at the front and back. A lower stop block protrudes upward at the top of the lower stop cover. The end of the housing facing the stop component extends into the stop space and abuts against the lower stop block. An upper stop block and positioning columns symmetrically distributed on both sides of the upper stop block protrude downward from the inner wall of the top of the upper stop cover. The positioning columns are adaptively clamped in the positioning holes and are locked and connected to the lower stop cover through screws.

6. The adjustable headband with stable sliding as described in claim 5, characterized in that: The sliding cover body includes an upper sliding cover and a lower sliding cover that are covered with each other. A support plate for supporting the scale elastic piece extends at one end of the lower sliding cover away from the upper sliding cover. A scale surface is provided on the top surface of the scale elastic piece. The width of the support plate is smaller than the width of the scale elastic piece. When the scale elastic piece is installed on the support plate, the edge of the scale elastic piece extends into the sliding groove and can slide along the sliding groove for guiding. A second positioning hole is provided at the edge of the end of the scale elastic piece facing the sliding cover body.

7. The adjustable headband with stable sliding as described in claim 6, characterized in that: One end of the scale spring is provided with a pin, and one end of the support plate is provided with a socket that is adapted to be plugged in. The upper surface of the end of the support plate facing the socket protrudes upward to form a stop protrusion. The scale spring is provided with a groove that allows the stop protrusion to pass through. When the headband sliding mechanism moves to a limit position, the stop protrusion abuts against the upper stop block. When the headband sliding mechanism moves to another limit position, the support plate abuts against the connecting post.

8. The adjustable headband with stable sliding as described in claim 7, characterized in that: The elastic limiting component includes a limiting spring and a limiting slot. The limiting spring is disposed at the bottom of one end of the tray facing the socket. The limiting slot includes a plurality of grooves spaced apart along the length direction in the open cavity. The limiting spring is engaged in one of the grooves.

9. The adjustable headband with stable sliding as described in claim 6, characterized in that: Two protruding ribs are arranged side by side on the tray, and the two protruding ribs and the tray together form a wire channel for the wire to pass through. The height of the protruding ribs is the same as the height of the top of the tray. Multiple protruding support columns are distributed at intervals on the side wall of the protruding ribs. Multiple sets of deformation compensation grooves are formed between the protruding ribs and the edge of the tray.

10. The adjustable headband with stable sliding as described in claim 6, characterized in that: One end of the upper sliding cover is provided with an installation head, and a connecting seat for connecting the earmuff is rotatably connected to the installation head. The inner walls of the upper sliding cover have protrusions on both sides forming second positioning posts. The second positioning posts are adapted to be snapped into the second positioning holes and are locked to the lower sliding cover by screws.

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