A headband-adjustable headphone

Abstract

This utility model relates to the field of headphone technology and discloses an adjustable headphone headband, including a left headband and a right headband. A first mounting sleeve is fixedly installed on the middle of one side of the left headband, and second mounting sleeves are fixedly installed on both sides of one side of the right headband. A rotating shaft is fixedly installed on the first mounting sleeve, and the outer rings on both sides of the rotating shaft are rotatably connected to the sleeves of the second mounting sleeves fixed on both sides of one side of the right headband. Through the rotatable connection between the rotating shaft and the second mounting sleeves, the left and right headbands can rotate flexibly to adjust the size of the headbands and meet the needs of different users' head shapes and wearing requirements. Through the limiting structure composed of a limiting plate, a spring, and a limiting block, when adjusting the headband, the limiting block moves in and out of the limiting groove in the inner wall of the rotating shaft cavity with the help of the spring force. The arc-shaped limiting block makes the movement smoother and further enhances the stability and reliability of the adjustment.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, specifically to a headphone with an adjustable headband. Background Technology

[0002] In existing headphone designs, the structure and adjustment functions of the headband have certain limitations. Most headphone headband adjustment methods are relatively simple, often only allowing for simple extension and retraction to accommodate different user head sizes. However, this adjustment method has many inconveniences in actual use. For example, the adjustment process is not precise enough and it is difficult to accurately match the specific shape and size of the user's head. This results in either the headband being too tight, causing pressure and affecting wearing comfort, or the headband being too loose, causing the headband to slip off and affecting the user experience. To solve the above problems, we propose a headphone with an adjustable headband. Utility Model Content

[0003] In view of the shortcomings of the prior art, this utility model provides an adjustable headband for headphones to solve the problems mentioned in the background.

[0004] This utility model provides the following technical solution: an adjustable headband headset, including a left headband and a right headband. A first mounting sleeve is fixedly installed on the middle of one side of the left headband, and a second mounting sleeve is fixedly installed on both sides of one side of the right headband. A rotating shaft is fixedly installed on the first mounting sleeve. The outer rings on both sides of the rotating shaft are rotatably connected to the sleeves of the second mounting sleeves fixedly installed on both sides of one side of the right headband. A groove is provided on one side of the second mounting sleeve on the front, and a gear ring is fixedly installed on the inner wall of the groove. A cavity is provided on one side of the rotating shaft, and a movable plate is provided in the cavity. A pull rod is fixedly installed on one side wall of the movable plate, penetrating and extending to the outside of the rotating shaft. A limit gear is fixedly installed on the outer ring of one side of the pull rod.

[0005] As a preferred embodiment of this utility model, four guide plates are uniformly fixedly installed on the outer ring of the movable plate, and the inner wall of the cavity opened by the rotating shaft is provided with a guide groove that matches the guide plate.

[0006] As a preferred embodiment of this utility model, the outer ring of the movable plate is evenly provided with four mounting cavities, and a limiting plate is provided in the mounting cavity. A spring is installed on the side of the inner wall of the mounting cavity on which the limiting plate and the movable plate are close to each other.

[0007] As a preferred technical solution of this utility model, a limiting block is installed on one side of the limiting plate, which penetrates and extends to the outside of the moving plate. The inner walls of both sides of the cavity opened on one side of the rotating shaft are provided with limiting grooves that match the limiting block. The limiting block is arranged in an arc shape on the side outside the moving plate.

[0008] As a preferred embodiment of this utility model, a headgear pad is provided on the outside of the connection between the left head beam and the right head beam, the gear meshes with the gear ring, one end of the pull rod passes through and extends to the outside of the headgear pad, and a pull plate is installed on the end of the pull rod located outside the headgear pad.

[0009] As a preferred technical solution of this utility model, an arc-shaped wire hole is provided in the middle of one side of the first mounting sleeve, and the arc-shaped wire hole provided in the first mounting sleeve allows the signal line to pass through.

[0010] As a preferred embodiment of this utility model, a left sliding arm outer support is installed on the side of the left head beam away from the first mounting sleeve, and a right sliding arm outer support is installed on the side of the right head beam away from the second mounting sleeve. Earphone assemblies are installed on the other side of both the left and right sliding arm outer supports, and a transmission line is installed on the earphone assembly on the left side.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This type of headphone with an adjustable headband allows the limiting gear to separate from the gear ring by pulling a lever. At this time, the headband can rotate and be adjusted freely. Releasing the lever and pressing it back down causes the limiting gear and gear ring to re-engage, thus fixing the headband. The adjustment process is simple and convenient. At the same time, the guide plate on the moving plate cooperates with the guide groove on the inner wall of the rotating shaft cavity to ensure the stability of the moving plate's movement, thereby enabling the accurate engagement and disengagement of the limiting gear and gear ring, improving the stability of the headband after adjustment.

[0013] 2. This type of headphone with an adjustable headband uses a limiting structure composed of a limiting plate, a spring, and a limiting block. When adjusting the headband, the limiting block moves in and out of the limiting groove on the inner wall of the rotating shaft cavity with the help of the spring force. The arc-shaped limiting block makes the movement smoother, further enhancing the stability and reliability of the adjustment. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic cross-sectional view of the head cover pad of this utility model;

[0016] Figure 3 This is a schematic diagram of the connection structure between the left and right head beams of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged schematic diagram of section A in the middle;

[0018] Figure 5 This is a side sectional view of the rotating shaft of this utility model;

[0019] Figure 6 This is a cross-sectional view of the movable plate of this utility model;

[0020] Figure 7 This utility model Figure 5 Enlarged schematic diagram of part B in the middle section.

[0021] In the diagram: 1. Head cover pad; 2. Right sliding arm outer support; 3. Transmission line; 4. Left sliding arm outer support; 5. Left head beam; 6. Right head beam; 7. First mounting sleeve; 8. Rotary shaft; 9. Second mounting sleeve; 10. Pull rod; 11. Pull plate; 12. Gear; 13. Gear ring; 14. Guide plate; 15. Moving plate; 16. Limiting block; 17. Spring; 18. Limiting plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: Please refer to Figures 1-7An adjustable headphone includes a left headband 5 and a right headband 6. First, a first mounting sleeve 7 is fixedly installed on the middle of one side of the left headband 5, and a rotating shaft 8 is fixedly installed on the first mounting sleeve 7. Next, second mounting sleeves 9 are fixedly installed on both sides of one side of the right headband 6. The outer rings on both sides of the rotating shaft 8 are rotatably connected to the sleeves of the second mounting sleeves 9 on both sides of one side of the right headband 6, allowing the left headband 5 and right headband 6 to rotate relative to each other. A groove is formed on one side of the second mounting sleeve 9 located on the front, and a toothed ring 13 is fixedly installed on the inner wall of the groove. A cavity is formed on one side inside the rotating shaft 8. The movable plate 15 is placed inside the cavity. At this time, four guide plates 14, which are evenly fixed on the outer ring of the movable plate 15, are embedded in the guide grooves that match the guide plates 14 on the inner wall of the cavity opened by the rotating shaft 8, ensuring that the movable plate 15 moves stably in the cavity. Limiting plates 18 are respectively set in the four mounting cavities evenly opened on the outer ring of the movable plate 15, and springs 17 are installed on the side of the inner wall of the mounting cavity opened by the limiting plate 18 and the movable plate 15 that are close to each other, so that the limiting plate 18 can move in the mounting cavity with the help of the elastic force of the spring 17. The limit plate 18 is installed on one side and extends through and to the outside of the movable plate 15. The limiting block 16 is aligned with the limiting grooves on both sides of the cavity opened on one side of the rotating shaft 8. Since the limiting block 16 is located on the side outside the moving plate 15 and is arc-shaped, it is easy for the limiting block 16 to smoothly enter and exit the limiting groove. The pull rod 10 is fixedly installed on one side wall of the moving plate 15, and the pull rod 10 passes through and extends to the outside of the rotating shaft 8. The limiting gear 12 is fixedly installed on the outer ring of one side of the pull rod 10, and it is ensured that the gear 12 meshes with the gear ring 13. A head cover pad 1 is set on the outside of the connection between the left head beam 5 and the right head beam 6, so that one end of the pull rod 10 passes through and extends... Extending to the outside of the headgear pad 1, and installing a pull plate 11 at the end of the pull rod 10 located outside the headgear pad 1, an arc-shaped wire hole is opened in the middle of one side of the first mounting sleeve 7, the arc-shaped wire hole is opened around the through hole in the center of the first mounting sleeve 7, and the signal line is passed through the arc-shaped wire hole. The left sliding arm outer support arm 4 is installed on the side of the left head beam 5 away from the first mounting sleeve 7, and the right sliding arm outer support arm 2 is installed on the side of the right head beam 6 away from the second mounting sleeve 9. Then, the earphone assembly is installed on the other side of the left sliding arm outer support arm 4 and the right sliding arm outer support arm 2 respectively, and the transmission line 3 is installed on the left earphone assembly.

[0024] In use, the user can pull the pull plate 11 to move the pull rod 10, which in turn moves the moving plate 15. The moving plate 15 causes the limiting block 16 to exit the limiting groove, and at the same time, the limiting gear 12 separates from the gear ring 13. At this time, the left head beam 5 and the right head beam 6 can be rotated to adjust the size of the head beam. After adjusting to the appropriate position, press the pull plate 11 to engage the gear 12 into the gear ring 13, which can limit the left head beam 5 and the right head beam 6. Meanwhile, the spring 17 pushes the limiting plate 18 to make the limiting block 16 enter the corresponding limiting groove. At the same time, the limiting gear 12 re-meshes with the gear ring 13, thus fixing the head beam.

[0025] Example 2: Please refer to Figures 1-7 In this adjustable headphone, the left headband 5 and right headband 6 can be made of lightweight yet strong plastic to reduce the overall weight of the headphones and improve wearing comfort. The first mounting sleeve 7 and the second mounting sleeve 9 can be made of metal to enhance the strength and stability of the connection. The pivot 8 is made of wear-resistant metal to ensure the durability of its rotatable connection with the second mounting sleeve 9. During assembly, the assembly steps of Embodiment 1 are followed. When adjusting the headband size, due to the characteristics of the materials, the left headband 5 and right headband 6 rotate flexibly, and the rotational connection between the pivot 8 and the second mounting sleeve 9 is stable. With stability, when the pull plate 11 is pulled, the pull rod 10 drives the moving plate 15 to move smoothly within the cavity of the rotating shaft 8. The guide plate 14 slides within the guide groove, preventing the moving plate 15 from shifting. Under the action of the spring 17, the limiting block 16 can accurately enter and exit the limiting groove, realizing the adjustment and fixation of the headband. Regarding the signal line, due to the reasonable design of the arc-shaped wire hole of the first mounting sleeve 7, the signal line is not easily worn when passing through, ensuring the stability of signal transmission. After the headphone assembly is installed on the left sliding arm outer support 4 and the right sliding arm outer support 2, the audio signal can be transmitted normally through the transmission line 3, providing users with a good user experience.

[0026] Example 3: Please refer to Figures 1-7This adjustable headband headset is suitable for people with different head circumferences. Users can adjust it as needed. It will not be too loose, causing the headset to fall off, nor too tight, causing discomfort. Assembly is carried out in the same way as in Example 1. Before exercise, the user adjusts the headband according to their head size, pulls the pull plate 11 to separate the limiting gear 12 from the gear ring 13, rotates the left headband 5 and right headband 6 to the appropriate position, and then presses the pull plate 11. The limiting block 16 enters the limiting groove under the action of the spring 17, and the limiting gear 12 re-engages with the gear ring 13, thus firmly fixing the headband. This design meets the needs of different users. The signal cable passes through the arc-shaped wire hole of the first mounting sleeve 7, which is not easily pulled or damaged during exercise, ensuring normal transmission of audio signals. The headphone assembly is installed on the left sliding arm outer support 4 and the right sliding arm outer support 2, which can stably fit the user's ears, providing clear music without being disturbed by movement.

[0027] Implementation effect: The rotating connection between the rotating shaft 8 and the second mounting sleeve 9 allows the left head beam 5 and the right head beam 6 to rotate flexibly, realizing the adjustment of the head beam size to meet the needs of different users' head shapes and wearing requirements. The pull rod 10 is connected to the moving plate 15. Pulling the pull rod 10 can drive the limiting gear 12 to separate from the gear ring 13. At this time, the head beam can be freely rotated and adjusted. Releasing the pull rod 10 and pressing the pull rod 10 will cause the limiting gear 12 and the gear ring 13 to re-mesh, realizing the fixation of the head beam. The adjustment process is simple and convenient. At the same time, the guide plate 14 on the moving plate 15 cooperates with the guide groove on the inner wall of the cavity of the rotating shaft 8 to ensure the stability of the movement of the moving plate 15, thereby enabling the accurate meshing and separation of the limiting gear 12 and the gear ring 13, improving the stability of the head beam after adjustment.

[0028] With the limiting structure consisting of limiting plate 18, spring 17 and limiting block 16, when adjusting the head beam, the limiting block 16 moves in and out of the limiting groove in the cavity of the rotating shaft 8 with the help of the elastic force of spring 17. The arc-shaped limiting block 16 makes the movement smoother and further enhances the stability and reliability of the adjustment.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A headphone with an adjustable headband, comprising a left headband (5) and a right headband (6), characterized in that: A first mounting sleeve (7) is fixedly installed in the middle of one side of the left head beam (5), and a second mounting sleeve (9) is fixedly installed on both sides of one side of the right head beam (6). A rotating shaft (8) is fixedly installed on the first mounting sleeve (7). The outer rings on both sides of the rotating shaft (8) are rotatably connected to the sleeves of the second mounting sleeves (9) fixedly installed on both sides of one side of the right head beam (6). A groove is provided on one side of the second mounting sleeve (9) on the front, and a gear ring (13) is fixedly installed on the inner wall of the groove. A cavity is provided on one side of the rotating shaft (8), and a moving plate (15) is provided in the cavity. A pull rod (10) is fixedly installed on one side wall of the moving plate (15) that penetrates and extends to the outside of the rotating shaft (8). A limit gear (12) is fixedly installed on the outer ring of one side of the pull rod (10).

2. The headphone with an adjustable headband according to claim 1, characterized in that: Four guide plates (14) are evenly fixedly installed on the outer ring of the movable plate (15), and the inner wall of the cavity opened by the rotating shaft (8) is provided with a guide groove that matches the guide plate (14).

3. The headphone with an adjustable headband according to claim 1, characterized in that: The outer ring of the movable plate (15) is evenly provided with four mounting cavities, and a limiting plate (18) is provided in the mounting cavity. A spring (17) is installed on the side of the inner wall of the mounting cavity opened by the limiting plate (18) and the movable plate (15) that is close to each other.

4. The headphone with an adjustable headband according to claim 3, characterized in that: A limiting block (16) is installed on one side of the limiting plate (18) and extends through and to the outside of the moving plate (15). The inner walls of both sides of the cavity opened on one side of the rotating shaft (8) are provided with limiting grooves that match the limiting block (16). The limiting block (16) is located on the side outside the moving plate (15) in an arc shape.

5. The headphone with an adjustable headband according to claim 1, characterized in that: A headgear pad (1) is provided on the outside of the connection between the left head beam (5) and the right head beam (6). The gear (12) meshes with the gear ring (13). One end of the pull rod (10) passes through and extends to the outside of the headgear pad (1). A pull plate (11) is installed on the end of the pull rod (10) located outside the headgear pad (1).

6. The headphone with an adjustable headband according to claim 1, characterized in that: An arc-shaped wire hole is provided in the middle of one side of the first mounting sleeve (7), and the arc-shaped wire hole provided in the first mounting sleeve (7) allows the signal line to pass through.

7. The headphone with an adjustable headband according to claim 1, characterized in that: The left head beam (5) is equipped with a left sliding arm outer support (4) on the side away from the first mounting sleeve (7), and the right head beam (6) is equipped with a right sliding arm outer support (2) on the side away from the second mounting sleeve (9). The other sides of the left sliding arm outer support (4) and the right sliding arm outer support (2) are equipped with earphone assemblies, and the earphone assembly on the left side is equipped with a transmission line (3).

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