An adjustable-tightness over-ear Bluetooth noise-canceling headphone

Abstract

This utility model relates to the field of headphones, and more particularly to an adjustable-tightness over-ear Bluetooth noise-canceling headphone. It includes a mounting sleeve, adjustment plates, racks, ordinary gears, and headphones. Adjustment plates are slidably connected to both the left and right sides of the mounting sleeve, and racks are connected to both adjustment plates. The racks are slidably connected to the mounting sleeve. Ordinary gears are rotatably connected to the center of the mounting sleeve, and the racks mesh with the ordinary gears. Headphones are rotatably connected to each adjustment plate. This utility model allows adjustment of the right-side adjustment plate by pulling it, which, in conjunction with the racks and ordinary gears, moves the left-side adjustment plate, thereby adjusting the position of the headphones to achieve tightness adjustment. After adjustment, a limiting rod moves and resets, engaging with a sliding plate for a fixed position. This allows for simultaneous adjustment of the position of both headphones for wearing while simultaneously limiting their position, facilitating tightness adjustment to suit different users, preventing the headphones from loosening or slipping, and improving wearing stability and comfort.

Description

Technical Field

[0001] This utility model relates to the field of headphones, and more particularly to an adjustable tightness over-ear Bluetooth noise-canceling headphone. Background Technology

[0002] In the consumer electronics and audio equipment field, over-ear Bluetooth noise-canceling headphones have become the mainstream choice for daily commutes, office work, study, sports and fitness scenarios due to their immersive sound effects, active noise cancellation, and wireless portability. Users' core demands for over-ear headphones include not only sound quality and noise cancellation effects, but also the stability and comfort of wearing them. There are significant differences in head circumference and ear size among different users.

[0003] A noise-canceling planar magnetic headphone, disclosed in Publication No. CN222706611U, includes a mounting frame and headphones mounted at both ends of the mounting frame. The headphones include a headphone shell with a pad or similar device installed at one end. This device achieves noise cancellation through headphone covers. The headphone covers can be cleaned and replaced by quickly removing the pad from one end of the headphone shell. Different sizes of headphone covers can be selected according to the user's wearing comfort. However, this device requires the user to manually adjust the position of one headphone first, and then adjust the other headphone separately. It cannot adjust both sides simultaneously, making the operation cumbersome and prone to asymmetrical adjustment on both sides. This results in inconsistent fit between the headphones and the ear, which not only affects the noise cancellation effect but also causes local pressure due to uneven force, affecting wearing comfort.

[0004] Therefore, it is necessary to design an adjustable Bluetooth noise-canceling headphone that can simultaneously adjust the position of both earpieces for wearing and use, while limiting the position of the earpieces, making it easy to adjust the tightness to suit different users, preventing the earpieces from loosening or slipping, and improving wearing stability and comfort. Utility Model Content

[0005] To overcome the shortcomings of the current device, which requires users to manually adjust the position of one earphone first and then adjust the other earphone separately, making it impossible to adjust both sides simultaneously, cumbersome operation, and prone to asymmetrical adjustment on both sides, resulting in inconsistent fit between the earphone and the ear, which not only affects the noise cancellation effect but also causes local pressure due to uneven force, affecting wearing comfort, this utility model provides an adjustable-tightness Bluetooth noise-canceling headphone that can adjust the position of both earphones simultaneously for wearing and use, while limiting the position of the earphones, making it easy to adjust the tightness to adapt to different users, preventing the earphones from loosening or slipping, and improving wearing stability and comfort.

[0006] The technical solution of this utility model is as follows: an adjustable tightness over-ear Bluetooth noise-canceling headphone, comprising a mounting sleeve, an adjustment plate, a rack, a common gear, an earphone, a fixed gear, a limiting component, and a locking component. The mounting sleeve has adjustment plates slidably connected to both the left and right sides, and racks are connected to both adjustment plates. The racks are slidably connected to the mounting sleeve. A common gear is rotatably connected to the middle of the mounting sleeve, and the racks mesh with the common gear. Earphones are rotatably connected to both adjustment plates. A fixed gear is connected to the upper front side of each earphone. A limiting component for fixing the position of the adjustment plate is provided on the right front part of the mounting sleeve, and a locking component for adjusting and fixing the earphone angle is provided on the front side of each adjustment plate.

[0007] More preferably, the mounting sleeve has a sliding groove on the right front side.

[0008] More preferably, the limiting component includes a sliding plate, a limiting rod, and a first telescopic spring. The upper rack is connected to the front side of the sliding plate, which is slidably connected to the mounting sleeve. The right front part of the mounting sleeve is slidably connected to the limiting rod, which is engaged with the sliding plate. The first telescopic spring connects the limiting rod to the mounting sleeve.

[0009] More preferably, the front of the slide has multiple docking holes.

[0010] More preferably, the locking assembly includes a guide rod, a meshing gear, a pressing frame, and a second telescopic spring. The lower front side of the adjusting plate is connected to a guide rod. The fixed gear is rotatably connected to the guide rod on the same side. The guide rod is slidably connected to a meshing gear, which engages with the fixed gear on the same side. The front part of the guide rod is rotatably connected to a pressing frame through damping. The pressing frame is in contact with the meshing gear on the same side. The meshing gear is connected to the guide rod on the same side by a second telescopic spring.

[0011] More preferably, the extrusion frames are all L-shaped.

[0012] The beneficial effects are as follows: 1. By pulling the right adjustment plate, the left adjustment plate moves in the cooperation of the rack and pinion and the ordinary gear, thereby adjusting the position of the earphone to achieve tightness adjustment. After adjustment, the limiting rod moves and resets to engage with the sliding plate for limiting. Thus, the position of both earphones can be adjusted at the same time for wearing and use, while limiting the earphones. This makes it easy to adjust the tightness to suit different users, prevents the earphones from becoming loose or slipping, and improves wearing stability and comfort. 2. This utility model rotates the earphone, which drives the fixed gear to rotate. After rotation, the squeezing frame is rotated in the opposite direction by hand, so that the protrusion on the squeezing frame squeezes the meshing gear to move and engage with the meshing gear to fix it. This allows the angle of the earphone to be adjusted and locked at the same time, so as to better fit the curve of the ear and head, avoid the earphone pressing on the auricle, reduce discomfort, enhance the sealing of the earphone, and improve the sound quality and noise reduction effect. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] Figure 2 This is a three-dimensional cross-sectional view of the mounting sleeve and adjusting plate and other components of this utility model.

[0015] Figure 3 This is a three-dimensional structural diagram of the rack and limiting rod components of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the earphone and meshing gears of this utility model.

[0017] Figure 5 This is a three-dimensional cross-sectional view of the extrusion frame and telescopic spring components of this utility model.

[0018] Explanation of reference numerals in the attached drawings: 1: mounting sleeve, 2: adjusting plate, 3: rack, 4: ordinary gear, 5: sliding plate, 6: limiting rod, 7: first telescopic spring, 8: earphone, 9: fixed gear, 10: guide rod, 11: meshing gear, 12: compression frame, 13: second telescopic spring. Detailed Implementation

[0019] The following description is only a preferred embodiment of the present invention and does not limit the scope of protection of the present invention.

[0020] An adjustable-tightness over-ear Bluetooth noise-canceling headphone, such as Figures 1-5 As shown, the device includes a mounting sleeve 1, an adjusting plate 2, a rack 3, a common gear 4, an earphone 8, a fixed gear 9, a limiting component, and a locking component. The mounting sleeve 1 has a sliding groove on its right front side for easy movement. The left and right sides of the mounting sleeve 1 are slidably connected to the adjusting plate 2, and each adjusting plate 2 is connected to a rack 3, which is slidably connected to the mounting sleeve 1. The middle of the mounting sleeve 1 is rotatably connected to a common gear 4, and each rack 3 meshes with the common gear 4. Each adjusting plate 2 is rotatably connected to an earphone 8, and each earphone 8 is connected to the front side of its upper part with a fixed gear 9. The right front of the mounting sleeve 1 is provided with a limiting component for fixing the position of the adjusting plate 2, and the front side of the adjusting plate 2 is provided with a locking component for adjusting and fixing the angle of the earphone 8.

[0021] like Figure 1 and Figure 3 As shown, the limiting assembly includes a sliding plate 5, a limiting rod 6, and a first telescopic spring 7. The upper rack 3 is connected to the front side of the sliding plate 5. The sliding plate 5 is slidably connected to the mounting sleeve 1. The front of the sliding plate 5 has five mating holes for easy fixing. The right front of the mounting sleeve 1 is slidably connected to the limiting rod 6. The limiting rod 6 is engaged with the sliding plate 5. The first telescopic spring 7 is connected between the limiting rod 6 and the mounting sleeve 1.

[0022] like Figure 1 and Figure 5 As shown, the locking assembly includes a guide rod 10, a meshing gear 11, a pressing frame 12, and a second telescopic spring 13. The lower front side of the adjusting plate 2 is connected to the guide rod 10. The fixed gear 9 is rotatably connected to the guide rod 10 on the same side. The meshing gear 11 is slidably connected to the guide rod 10. The meshing gear 11 is engaged with the fixed gear 9 on the same side. The front of the guide rod 10 is connected to the pressing frame 12 through damping rotation. The pressing frame 12 is in contact with the meshing gear 11 on the same side. The pressing frame 12 is L-shaped to facilitate limiting the position. The meshing gear 11 is connected to the guide rod 10 on the same side by the second telescopic spring 13.

[0023] When the Bluetooth noise-canceling headphones 8 are needed, the user pulls the limiting rod 6 to disengage from the docking hole on the slide plate 5, according to the shape and size of the user's head. The first telescopic spring 7 is stretched, and then the right adjustment plate 2 is pulled, causing the right rack 3 to move. The right rack 3 meshes with the ordinary gear 4, causing the ordinary gear 4 to rotate. The ordinary gear 4 meshes with the left rack 3, causing the left rack 3 to move, which in turn moves the left adjustment plate 2, thus adjusting the position of the headphones 8 to achieve tightness adjustment. Simultaneously, the right adjustment plate 2 moves, causing the slide plate 5 to move along the groove on the mounting sleeve 1. After adjusting to the appropriate position, the limiting rod 6 is released, the first telescopic spring 7 returns, and the limiting rod 6 moves back to its original position, engaging with the slide plate 5 to limit the position of the rack 3. This limits the position of the adjustment plate 2 and the headphones 8, allowing for simultaneous adjustment of the position of both headphones 8 for wearing while simultaneously limiting their position, facilitating adjustment. The tightness of the joint is adapted to different users to prevent the earphone 8 from loosening or slipping, improving wearing stability and comfort. Then, by rotating the squeezing frame 12 by hand, the protrusion on the squeezing frame 12 disengages from the meshing gear 11, the second telescopic spring 13 rebounds, and the meshing gear 11 moves along the guide rod 10 to disengage from the fixed gear 9. The squeezing frame 12 is L-shaped. Then, rotate the earphone 8 to drive the fixed gear 9 to rotate. After rotating to a suitable angle, rotate the squeezing frame 12 in the opposite direction by hand, so that the protrusion on the squeezing frame 12 squeezes the meshing gear 11 to move and engage with the meshing gear 11 for fixation. The second telescopic spring 13 is compressed, thereby fixing the angle of the earphone 8. This allows for adjustment and locking of the angle of the earphone 8, making it easier to fit the curve of the ear and head, avoiding pressure on the auricle, reducing discomfort, enhancing the sealing of the earphone 8, and improving sound quality and noise reduction. Then, pick up the device and wear it on the user's head for use.

[0024] It should be understood that the above description is for illustrative purposes only and is not intended to limit the present invention. Those skilled in the art will understand that variations of the present invention will be included within the scope of the claims herein.

Claims

1. A Bluetooth noise-cancelling headset with adjustable tightness, characterized in that: It includes a mounting sleeve (1), an adjusting plate (2), a rack (3), a common gear (4), an earphone (8), a fixed gear (9), a limiting component, and a locking component. The mounting sleeve (1) is slidably connected to the left and right sides with the adjusting plate (2). The adjusting plate (2) is connected to the rack (3), and the rack (3) is slidably connected to the mounting sleeve (1). The mounting sleeve (1) is rotatably connected to the common gear (4), and the rack (3) meshes with the common gear (4). The adjusting plate (2) is rotatably connected to the earphone (8), and the earphone (8) is connected to the upper front side of the earphone (8). The right front part of the mounting sleeve (1) is provided with a limiting component for fixing the position of the adjusting plate (2), and the front side of the adjusting plate (2) is provided with a locking component for adjusting and fixing the angle of the earphone (8).

2. The adjustable tightness Bluetooth noise-cancelling headset according to claim 1, wherein: The mounting sleeve (1) has a groove on the right front side.

3. The adjustable tightness Bluetooth noise-cancelling headset of claim 1, wherein: The limiting assembly includes a sliding plate (5), a limiting rod (6) and a first telescopic spring (7). The upper rack (3) is connected to the front side of the sliding plate (5). The sliding plate (5) is slidably connected to the mounting sleeve (1). The right front part of the mounting sleeve (1) is slidably connected to the limiting rod (6). The limiting rod (6) is engaged with the sliding plate (5). The first telescopic spring (7) is connected between the limiting rod (6) and the mounting sleeve (1).

4. The adjustable tightness Bluetooth noise-cancelling headset of claim 3, wherein: The front of the slide (5) has multiple docking holes.

5. The adjustable tightness Bluetooth noise-cancelling headset of claim 1, wherein: The locking assembly includes a guide rod (10), a meshing gear (11), a pressing frame (12), and a second telescopic spring (13). The lower front side of the adjusting plate (2) is connected to the guide rod (10). The fixed gear (9) is rotatably connected to the guide rod (10) on the same side. The meshing gear (11) is slidably connected to the guide rod (10). The meshing gear (11) is engaged with the fixed gear (9) on the same side. The front part of the guide rod (10) is connected to the pressing frame (12) through damping rotation. The pressing frame (12) is in contact with the meshing gear (11) on the same side. The meshing gear (11) is connected to the guide rod (10) on the same side by the second telescopic spring (13).

6. The adjustable tightness Bluetooth noise-cancelling headset of claim 5, wherein: The extrusion racks (12) are all L-shaped.

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