Noise reduction headphone

Abstract

The invention relates to the technical field of earphones, and particularly discloses a head-mounted noise reduction earphone which comprises a head beam and side beams, the two ends of the head beam are slidably connected with the side beams, the bottom ends of the side beams are provided with buffer assemblies, inner cavities of the side beams are rotatably connected with earmuff assemblies, the number of the side beams, the number of the buffer assemblies and the number of the earmuff assemblies are all two, and each earmuff assembly comprises an earmuff shell. The earmuff shell is sleeved with a connecting shell, a small hole is formed in the middle of the connecting shell, the earmuff can be relatively stable through the buffer assembly after the body position of the earmuff is adjusted, the stability of the earmuff on the head of a user is improved, the influence of shaking generated when the user moves on the earmuff is reduced, and therefore the comfort of a wearer is improved; meanwhile, the earmuffs are prevented from loosening or slipping, dual noise reduction can be performed on the earphone through the earmuff assembly, and the earmuffs can be adjusted according to whether a wearer wears glasses or not, so that the pressure of the earmuffs on the head of the wearer is uniform, and the use experience of the wearer is improved.

Description

Technical Field

[0001] The present application relates to the technical field of headphones, and in particular to a head-mounted noise-cancelling headphone. Background Art

[0002] Headphones are audio output devices typically designed to be worn on the head, completely covering or surrounding the ears. As consumers demand increasingly high levels of noise reduction from headphones, the design and manufacture of noise-canceling headphones will place greater emphasis on noise reduction. Currently, noise-canceling headphones on the market primarily utilize active noise reduction technology. In addition to active noise reduction, passive noise reduction is also commonly used. Passive noise reduction primarily uses physical noise-canceling materials (such as sound-isolating sponges and soft silicone) to isolate the ear canal from external sounds, achieving the desired effect.

[0003] The existing technology still has the following problems: 1. Existing headphones do not have a cushioning effect. After the earmuffs are adjusted to their body position, the user will shake the headphones as a whole while walking or running, causing the earmuffs to shift in position, resulting in the earmuffs not being in place and not being able to fit tightly against the user's ears. The sealing between the earmuffs and the ears may be reduced, causing external noise to enter the headphones more easily, which may cause a feeling of pressure or discomfort when worn, and may also make them prone to slipping or loosening.

[0004] 2. The noise reduction effect of existing headphones is single. Nowadays, a large proportion of people wear glasses, and the glasses frames have a great influence on headphones. The presence of glasses frames may change the pressure distribution of headphones on the head, which may increase the pressure of headphones on the head and cause discomfort when wearing. The gap between the glasses frames and the earmuffs may affect the sound insulation effect of headphones, which may reduce the sealing between the earmuffs and the ears, causing external noise to enter the headphones more easily. At the same time, the headphone speakers vibrate inside the earmuffs and produce certain noise. In addition, the ventilation effect of existing headphones is single, and users' requirements for ventilation effects may be different under different environmental conditions, resulting in poor wearing experience for users in different environments. Summary of the Invention

[0005] In order to overcome the lack of cushioning effect of headphones, after the earmuffs adjust their body position, the user will shake the headphones as a whole while walking or running, causing the earmuffs to shift in position, resulting in the earmuffs being out of place and unable to fit tightly against the user's ears. The sealing between the earmuffs and the ears may be reduced, causing external noise to enter the headphones more easily. The presence of glasses frames may change the pressure distribution of the headphones on the head, which may increase the pressure of the headphones on the head and cause discomfort when wearing them. The gap between the glasses frames and the earmuffs may affect the sound insulation effect of the headphones, which may reduce the sealing between the earmuffs and the ears, causing external noise to enter the headphones more easily. At the same time, the headphone speakers vibrate inside the earmuffs and produce certain noise. The purpose of the present invention is to provide a head-mounted noise-cancelling headset to solve the above-mentioned shortcomings.

[0006] The present application provides a head-mounted noise-cancelling headset, comprising a head beam and side beams, wherein both ends of the head beam are slidably connected to the side beams, a buffer assembly is provided at the bottom end of the side beam, an inner cavity of the side beam is rotatably connected to an earmuff assembly, and there are two side beams, two buffer assemblies and two earmuff assemblies. The earmuff assembly comprises an earmuff shell, a connecting shell is sleeved on the earmuff shell, a small hole is opened in the middle part of the connecting shell, a first noise reduction mechanism is provided on the outer surface of the connecting shell, a ventilation mechanism is provided in the inner cavity of the earmuff shell, a second noise reduction mechanism is provided on the inner wall of the earmuff shell, and a speaker is fixedly mounted on the outer surface of the second noise reduction mechanism. Furthermore, the first noise reduction mechanism includes an ear pad cover, the outer surface of the ear pad cover is provided with a pleated layer, the inner cavity of the ear pad cover is provided with a filling block, the outer surface of the filling block is fixedly connected to a push rod, the inner cavity of the push rod is slidably connected to a storage rod, the outer surface of the push rod is fixedly installed with a second fixing ring, the end of the push rod away from the filling block is fixedly installed with a first clamping ring, the outer surface of the push rod is slidably connected with a second clamping ring, clamping blocks are provided on both sides of the push rod, the outer surface of the clamping block is fixedly installed with an elastic rod, the outer surface of the elastic rod is sleeved with a third spring, and the outer surface of the elastic rod is sleeved with a limit block.

[0007] Furthermore, the ear pad cover is filled with sound insulation cotton, the filling block is located in the pleated layer, the push rod passes through the inner cavity of the connecting shell, the second fixing ring and the second clamping ring are both magnets, and the adjacent outer surfaces are of different poles, the first clamping ring and the second clamping ring are symmetrically distributed, the second clamping ring is thinner at one end close to the second fixing ring, and gradually becomes thicker along the direction of the storage rod, the clamping block and the first clamping ring are engaged, a fifth spring is provided in the inner cavity of the push rod, the fifth spring is located between the inner wall of the push rod and the storage rod, the third spring is fixedly connected to the inner wall of the connecting shell, the elastic rod and the third spring are slidably connected, the limit block is located between the clamping block and the third spring, the side of the clamping block close to the second fixing ring is an inclined surface, the storage rod is fixedly connected to the outer surface of the earmuff shell, and the second fixing ring passes through the inner cavity of the connecting shell when the push rod slides.

[0008] Furthermore, the ventilation mechanism includes a ventilation plate, a ventilation pipe is fixedly installed on the lower surface of the ventilation plate, a ventilation hole is opened at the bottom end of the ventilation pipe, a second slider is fixedly installed on the outer surface of the ventilation plate, the second slider is slidably connected to the earmuff shell, and the ventilation pipe and the ventilation plate are slidably connected.

[0009] Furthermore, the second noise reduction mechanism includes a noise reduction frame, a pressing rod is fixedly installed on the middle part of the noise reduction frame, a limit frame is fixedly installed on the outer surface of the noise reduction frame, a sliding groove is provided on the outer surface of the limit frame, a second buffer block is provided in the middle part of the noise reduction frame, a third sliding rod is fixedly installed on the outer surface of the second buffer block, a gasket is sleeved on the outer surface of the third sliding rod, a fourth spring is sleeved on the outer surface of the third sliding rod, an alarm is fixedly installed on the inner wall of the second buffer block, a fixed block is fixedly installed on the inner wall of the second buffer block, and a button is provided on the outer surface of the fixed block.

[0010] Furthermore, the third sliding rod and the sliding groove are slidably connected, the gasket and the inner wall of the limit frame are slidably connected, the fourth spring is located between the second buffer block and the gasket, there is a gap between the pressing rod and the button, the button and the alarm are electrically connected, pressing the button controls the alarm to sound an alarm, the outer surface of the second buffer block is fixedly connected to the speaker, and the noise reduction frame and the inner wall of the earmuff shell are fixedly connected.

[0011] Furthermore, the buffer assembly includes a connecting frame, which is rotatably connected to the earmuff shell. A rotating rod is fixedly installed on the upper surface of the connecting frame. A first buffer mechanism is rotatably connected to the upper surface of the rotating rod. A second buffer mechanism is provided at the bottom end of the side beam, and a second insertion rod is provided at the bottom end of the second buffer mechanism.

[0012] Furthermore, the first buffer mechanism includes a connecting rod, the outer surface of the connecting rod is slidably connected to the first slider, both ends of the first slider are fixedly installed with slip rings, the outer surface of the slip ring is fixedly sleeved with a connecting tube, the bottom end of the slip ring is slidably connected to the first fixed ring, the middle part of the first fixed ring is fixedly connected to the fixed rod, the outer surface of the first fixed ring is fixedly connected to the first sliding rod, the outer surface of the first sliding rod is sleeved with a first spring, and two first springs are sleeved on one first sliding rod, the first springs are located on both sides of the inner wall of the slip ring, and the first spring at the bottom end is located between the first fixed ring and the inner wall of the slip ring, and the first spring at the upper end is located between the first sliding rod and the inner wall of the slip ring.

[0013] Furthermore, the fixed rod and the bottom end of the side beam are fixedly connected, the inner cavity of the first slider is provided with a sixth spring, the inner cavity of the first slider and the second insertion rod are slidingly connected, and the sixth spring and the second insertion rod are elastically connected, and the rotating rod and the first slider are rotationally connected.

[0014] Furthermore, the second buffer mechanism includes a first buffer block, a first plug rod is opened on the outer surface of the first buffer block, second sliding rods are fixedly installed at both ends of the first buffer block, a second spring is sleeved on the outer surface of the second sliding rod, a connecting block is fixedly installed on the lower surface of the side beam, the second sliding rod and the connecting block are slidably connected, the second spring is located between the first buffer block and the connecting block, the top end of the second plug rod is inserted into the first plug rod, and the first buffer block and the side beam are slidably connected.

[0015] The technical solution provided by this application has at least the following technical effects or advantages: 1. The use of a buffer component effectively solves the problem of the lack of buffering effect of existing headphones. After the earmuffs are adjusted to their position, the user will shake the headphones as a whole when walking or running, causing the earmuffs to shift in position, resulting in the earmuffs not being in place and not being able to fit the user's ears tightly. The sealing between the earmuffs and the ears may be reduced, causing external noise to enter the headphones more easily, which may cause a sense of pressure or discomfort when worn, and the headphones are also prone to slipping or loosening. The present invention uses a buffer component to ensure that the earmuffs are relatively stable after the earmuffs are adjusted to their position, thereby improving the stability of the earmuffs on the user's head and reducing the impact of shaking caused by the user's exercise on the earmuffs, thereby improving the wearer's comfort and preventing the earmuffs from loosening or slipping.

[0016] 2. The earmuff assembly effectively addresses the limited noise reduction effect of existing headphones. A significant proportion of people now wear glasses, and glasses frames significantly impact the wearing of headphones. The presence of glasses frames can alter the pressure distribution of the headphones on the head, potentially increasing pressure on the head and causing discomfort when worn. The gap between the glasses frames and the earmuffs can affect the sound insulation of the headphones, reducing the seal between the earmuffs and the ears, allowing external noise to enter the headphones more easily. Furthermore, the vibration of the headphone speakers inside the earmuffs can generate certain noise. Furthermore, existing headphones have limited ventilation, and users may have different requirements for ventilation in different environmental conditions, resulting in a poor wearing experience in different environments. The present invention, through the earmuff assembly, achieves dual noise reduction for the headphones and can adjust the earmuffs based on whether the wearer wears glasses, ensuring uniform pressure on the wearer's head and improving the user experience. Furthermore, the ventilation effect can be adjusted to provide adequate comfort and breathability, reducing discomfort caused by exercise or weather changes, and also providing dust protection in dusty weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application; Figure 2 Schematic diagram of the structure of the buffer assembly in the embodiment of the present application; Figure 3This is a schematic cross-sectional view of the connecting tube structure in an embodiment of the present application; Figure 4 This is a schematic structural diagram of the second buffer mechanism in an embodiment of the present application; Figure 5 Schematic diagram of the structure of the earmuff assembly in an embodiment of the present application; Figure 6 Schematic diagram of the earmuff shell structure in an embodiment of the present application; Figure 7 Schematic diagram of the cross-section of the earmuff assembly structure in an embodiment of the present application; Figure 8 This is a schematic diagram of the second clamping ring structure in an embodiment of the present application; Figure 9 Schematic diagram of the cross-sectional structure of the earmuff shell in an embodiment of the present application; Figure 10 Schematic diagram of the ventilation mechanism structure in an embodiment of the present application; Figure 11 This is a schematic diagram of the structure of the alarm in the embodiment of the present application; Figure 12 Schematic diagram of the cross-section of the buffer block structure in the embodiment of the present application.

[0018] In the figure: 1. head beam; 2. side beam; 3. buffer assembly; 31. connecting frame; 32. rotating rod; 33. first buffer mechanism; 331. connecting rod; 332. first slider; 333. sliding ring; 334. connecting tube; 335. first fixing ring; 336. fixing rod; 337. first sliding rod; 338. first spring; 34. second buffer mechanism; 341. first buffer block; 342. first plug rod; 343. second sliding rod; 344. second spring; 345. connecting block; 35. second plug rod; 4. earmuff assembly; 41. earmuff shell; 42. connecting shell; 43. first noise reduction mechanism; 431. ear pad cover; 432. pleated layer; 433. filling Block; 434, push rod; 435, storage rod; 436, second fixing ring; 437, first snap ring; 438, second snap ring; 439, clamping block; 4310, elastic rod; 4311, third spring; 4312, limit block; 44, ventilation mechanism; 441, ventilation plate; 442, ventilation pipe; 443, air vent; 444, second slider; 45, second noise reduction mechanism; 451, noise reduction frame; 452, pressing rod; 453, limit frame; 454, slide groove; 455, second buffer block; 456, third slide bar; 457, gasket; 458, fourth spring; 459, alarm; 4510, fixing block; 4511, button; 46, speaker. DETAILED DESCRIPTION

[0019] When the user walks or runs, the headphones will shake as a whole, causing the earmuffs to shift in position. The present invention uses a buffer component to ensure that the earmuffs are relatively stable after adjusting the body position, thereby improving the stability of the earmuffs on the user's head. The presence of glasses frames may change the pressure distribution of the headphones on the head, which may increase the pressure of the headphones on the head and cause discomfort when wearing them. The present invention uses the earmuff component to perform dual noise reduction on the headphones, and can adjust the earmuffs according to whether the wearer wears glasses, so that the pressure of the earmuffs on the wearer's head is uniform, thereby improving the wearer's user experience.

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] See also Figure 1 As shown, a head-mounted noise-cancelling headset includes a headband 1 and side beams 2. The two ends of the headband 1 are slidably connected to the side beams 2. The bottom end of the side beam 2 is provided with a buffer assembly 3. The inner cavity of the side beam 2 is rotatably connected to the earmuff assembly 4. There are two side beams 2, buffer assemblies 3 and earmuff assemblies 4. The side beam 2 can be stretched in the inner cavity of the headband 1 to adjust the position of the earmuff assembly 4, and the headband 1 and the side beams 2 are stretched by external force and fixed by the friction brought by traditional buckles. The buffer assembly 3 is used to buffer the earmuff assembly 4, reduce the impact on the earmuff assembly 4 when the user walks and runs, and enable the earmuff assembly 4 to be stably placed on the user's ears. The earmuff assembly 4 has good noise reduction and ventilation effects.

[0022] See also Figure 2 As shown, the buffer assembly 3 includes a connecting frame 31, which is rotatably connected to the earmuff shell 41. A rotating rod 32 is fixedly installed on the upper surface of the connecting frame 31, and the upper surface of the rotating rod 32 is rotatably connected to the first buffer mechanism 33. The bottom end of the side beam 2 is provided with a second buffer mechanism 34, and the bottom end of the second buffer mechanism 34 is provided with a second insertion rod 35. The earmuff assembly 4 can be rotated in the inner cavity of the connecting frame 31 to adjust the angle of the earmuff assembly 4, and the angle of the earmuff assembly 4 can be adjusted by rotating the rotating rod 32 in cooperation with the first buffer mechanism 33, so that the earmuff assembly 4 can fit the user's ears according to the face shape of the user. The first buffer mechanism 33 and the second buffer mechanism 34 can reduce the impact of the shaking caused by the user when walking and running on the earmuff assembly 4, improve the stability of the earmuff assembly 4, and avoid the earmuff assembly 4 from being offset when walking and running after the position of the earmuff assembly 4 is adjusted. The second insertion rod 35 is used to adjust the position of the connecting frame 31, so that the position of the earmuff assembly 4 can be adjusted to ensure comfort when wearing.

[0023] See also Figure 2 、 Figure 3 and Figure 4As shown, the first buffer mechanism 33 includes a connecting rod 331, the outer surface of the connecting rod 331 is slidably connected to the first slider 332, the two ends of the first slider 332 are fixedly installed with a slip ring 333, the outer surface of the slip ring 333 is fixedly sleeved with a connecting tube 334, the bottom end of the slip ring 333 is slidably connected to the first fixed ring 335, the middle part of the first fixed ring 335 is fixedly connected to the fixed rod 336, the outer surface of the first fixed ring 335 is fixedly connected to the first sliding rod 337, the outer surface of the first sliding rod 337 is sleeved with a first spring 338, and two first springs 338 are sleeved on one first sliding rod 337, the first springs 338 are located on both sides of the inner wall of the slip ring 333, and the first spring 338 at the bottom is located between the first fixed ring 335 and the slip ring 3 The first spring 338 at the upper end is located between the first slide bar 337 and the inner wall of the slip ring 333, the fixed rod 336 is fixedly connected to the bottom end of the side beam 2, the inner cavity of the first slider 332 is provided with a sixth spring, the inner cavity of the first slider 332 is slidably connected to the second insertion rod 35, and the sixth spring is elastically connected to the second insertion rod 35, the rotating rod 32 and the first slider 332 are rotatably connected, the second buffer mechanism 34 includes a first buffer block 341, the outer surface of the first buffer block 341 is provided with a first insertion rod 342, the two ends of the first buffer block 341 are fixedly installed with a second slide bar 343, the outer surface of the second slide bar 343 is sleeved with a second spring 344, the lower surface of the side beam 2 is fixedly installed with a connecting block 345, the second slide bar 343 and the connecting block 34 5 is slidably connected, the second spring 344 is located between the first buffer block 341 and the connecting block 345, the top end of the second insertion rod 35 is inserted into the first insertion rod 342, the first buffer block 341 is slidably connected to the side beam 2, the rotation of the earmuff assembly 4 in the connecting frame 31, the relative rotation of the rotating rod 32 and the first buffer mechanism 33 are all adjusted by external force of the person, and a large friction force is required between the two to prevent deflection during exercise. The flexible connection of the buffer assembly 3 reduces the possibility of the earmuff assembly 4 rotating in the connecting frame 31 and the rotating rod 32 rotating in the first buffer mechanism 33 when the person is exercising, thereby improving the stability of the earmuff assembly 4 after adjustment. When a person is exercising, the head will shake, and at this time the earmuff assembly 4 and the head beam 1 will shake relative to each other, and The earmuff assembly 4 and the side beam 2 are flexibly connected via the buffer assembly 3 to reduce the impact of shaking on the earmuff assembly 4 during user movement. When the first buffer block 341 shakes, the first buffer block 341 drives the second slide bar 343 to slide in the inner cavity of the connecting block 345. At this time, the elastic force of the second spring 344 causes the first buffer block 341 to quickly return to its original position, while reducing the shaking amplitude, so that the first buffer block 341 maintains a stable position. Therefore, when the earmuff assembly 4 shakes relative to the side beam 2, the earmuff assembly 4 can reduce horizontal shaking and floating, and can keep the earmuff assembly 4 in a relatively stable position after adjustment, avoiding deviation from the earmuff assembly 4 and the ear. At the same time, the shaking of the first slider 332 drives the slip ring 333 to slide on the fixing rod 336.At this time, the elastic force of the first spring 338 causes the sliding ring 333 to quickly return to its position on the first slide bar 337 when in the rest state, thereby ensuring a good buffering effect when shaking in the up and down directions. This ensures that after the position of the earmuff assembly 4 is adjusted, the shaking amplitude of the earmuff assembly 4 is reduced when the user exercises, thereby adjusting to a certain extent according to the head shape and ear shape, ensuring that the earmuff can fit the ear tightly during exercise and is not easy to fall off. Because the human body is not completely symmetrical and the position of the ears has a certain deviation, the sixth spring can be compressed by pressing the second insertion rod 35. At this time, the position of the first slide bar 332 on the connecting rod 331 is adjusted to adjust the position of the earmuff assembly 4. When the appropriate position is reached, the second insertion rod 35 is released to engage the second insertion rod 342, thereby flexibly fixing the earmuff assembly 4 and the side beam 2 again. In this way, the flexible connection of the buffer assembly 3 ensures that the earmuff assembly 4 remains relatively stable when the angle relative to the side beam 2 is adjusted, preventing the position of the earmuff assembly 4 from changing during exercise and affecting the use effect of the earmuff assembly 4.

[0024] See also Figure 5 、 Figure 6 and Figure 7 As shown, the earmuff assembly 4 includes an earmuff shell 41, which is sleeved with a connecting shell 42. A small hole is opened in the middle of the connecting shell 42 for sound transmission. A first noise reduction mechanism 43 is provided on the outer surface of the connecting shell 42, and a ventilation mechanism 44 is provided in the inner cavity of the earmuff shell 41. A second noise reduction mechanism 45 is provided on the inner wall of the earmuff shell 41. A speaker 46 is fixedly mounted on the outer surface of the second noise reduction mechanism 45. The connecting shell 42 is used to connect the earmuff shell 41 and the first noise reduction mechanism 43. The first noise reduction mechanism 43 has a noise reduction effect and can be adapted to users wearing glasses and those not wearing glasses for use respectively, so that the first noise reduction mechanism 43 can fit closely to the human head to prevent the glasses frame from causing a gap between the first noise reduction mechanism 43 and the head. The ventilation mechanism 44 is used to adjust the ventilation effect and can be adjusted according to user needs. The second noise reduction mechanism 45 flexibly fixes the speaker 46 to the inner wall of the earmuff shell 41 to reduce the impact of the speaker 46 on the earmuff shell 41 when it vibrates, thereby reducing noise.

[0025] See also Figure 7 and Figure 8As shown, the first noise reduction mechanism 43 includes an ear pad cover 431, and the outer surface of the ear pad cover 431 is provided with a pleated layer 432, and the pleated layer 432 is located in the middle and upper part of the ear pad cover 431, so that when the ear pad cover 431 fits the head, the pleated layer 432 can be located near the eye support, and the inner cavity of the ear pad cover 431 is provided with a filling block 433, and the outer surface of the filling block 433 is fixedly connected to a push rod 434, and the inner cavity of the push rod 434 is slidably connected to a storage rod 435, and the outer surface of the push rod 434 is fixedly installed with a second fixing ring 436, and the end of the push rod 434 away from the filling block 433 is fixedly installed with a first clamping ring 437, and the outer surface of the push rod 434 is slidably connected to a second clamping ring 438, and both sides of the push rod 434 are provided with clamping blocks 439, and the outer surface of the clamping block 439 The surface is fixedly installed with an elastic rod 4310, the outer surface of the elastic rod 4310 is sleeved with a third spring 4311, the outer surface of the elastic rod 4310 is sleeved with a limit block 4312, the ear pad sleeve 431 is filled with sound insulation cotton, the filling block 433 is located at the pleated layer 432, the push rod 434 passes through the inner cavity of the connecting shell 42, the second fixing ring 436 and the second clamping ring 438 are both magnets, and the outer surfaces close to each other are of different poles, the first clamping ring 437 and the second clamping ring 438 are symmetrically distributed, the second clamping ring 438 is thin at one end close to the second fixing ring 436, and gradually becomes thicker along the direction of the storage rod 435, the clamping block 439 is engaged with the first clamping ring 437, and the inner cavity of the push rod 434 is provided with a fifth spring, the fifth spring is located between the inner wall of the push rod 434 and the storage rod 43 5, the third spring 4311 is fixedly connected to the inner wall of the connecting shell 42, the elastic rod 4310 and the third spring 4311 are slidably connected, the limit block 4312 is located between the block 439 and the third spring 4311, the block 439 is close to the second fixing ring 436 on an inclined surface, the storage rod 435 is fixedly connected to the outer surface of the earmuff shell 41, and the second fixing ring 436 passes through the inner cavity of the connecting shell 42 when the push rod 434 slides. When the user does not wear glasses, the filling block 433 needs to be squeezed against the pleated layer 432 to make the outer surface of the ear pad cover 431 relatively flat. By pressing the pleated layer 432, the filling block 433 is squeezed against the push rod 434, and the push rod 434 drives the second fixing ring 436 to move, and the second fixing ring 436 is The movement drives the second snap ring 438 to move. At this time, the second snap ring 438 is inserted and squeezed on the clamping block 439 to drive the second snap ring 438 and the first snap ring 437 to fit tightly. During this process, the second snap ring 438 is clamped by the clamping block 439 to separate the second snap ring 438 and the second fixing ring 436, thereby ensuring that there is no gap between the first snap ring 437 and the second snap ring 438, so that the elastic rod 4310 slides in the inner cavity of the third spring 4311, and the two clamping blocks 439 move outward. At this time, the filling block 433 is released and the elastic force of the fifth spring drives the push rod 434 to squeeze outward, so that the first snap ring 437 passes through the clamping block 439 under the fit of the second snap ring 438. After passing through the clamping block 439, the second snap ring 438 is reset under the magnetic attraction of the second fixing ring 436.The second snap ring 438 and the first snap ring 437 have a gap, so that the first snap ring 437 and the block 439 are engaged when pressed again, so that the first snap ring 437 and the block 439 are disengaged. The fifth spring makes the filling block 433 fit tightly against the inner wall of the ear pad cover 431, and cooperates with the sound insulation cotton in the inner cavity of the ear pad cover 431 to make the outer surface of the ear pad cover 431 relatively flat, so that the ear pad cover 431 fits tightly against the person's head. When the user wears glasses, the filling block 433 is pressed again to engage the first snap ring 437 and the block 439, so that the fifth spring is in In the compressed state, that is, the filling block 433 is in the stored state, the pleated layer 432 is in a recessed state, so that it can fit the user's frame bracket, and the frame bracket is stored in the recess of the pleated layer 432. In this way, when the ear pad cover 431 is in contact with the head, there is no gap between the ear pad cover 431 and the head, preventing external noise from entering the interior of the first noise reduction mechanism 43, thereby achieving good sound insulation and noise reduction effects. At the same time, it prevents the presence of the glasses frame from causing uneven pressure distribution on the head from the headphones, ensuring good wearing comfort.

[0026] See also Figure 7 、 Figure 9 and Figure 10 As shown, the ventilation mechanism 44 includes a ventilation plate 441, a ventilation pipe 442 is fixedly installed on the lower surface of the ventilation plate 441, a filter can be set inside the ventilation pipe 442 to prevent dust from entering the earmuff shell 41, a ventilation hole 443 is opened at the bottom end of the ventilation pipe 442, and a second slider 444 is fixedly installed on the outer surface of the ventilation plate 441. The second slider 444 is slidably connected to the earmuff shell 41, and the ventilation pipe 442 is slidably connected to the ventilation plate 441. The ventilation plate 441 is driven to move on the earmuff shell by sliding the second slider 444. 41, the ventilation plate 441 drives the ventilation tube 442 to slide in the inner cavity of the earmuff shell 41, so that the ventilation holes 443 are exposed on the outside of the earmuff shell 41. Different numbers of ventilation holes 443 are exposed according to ventilation needs to adjust the ventilation effect, provide sufficient comfort and breathability, and reduce discomfort caused by exercise or weather changes. At the same time, the ventilation tube 442 can be stored in dusty places, so that the ventilation holes 443 are blocked in the inner cavity of the earmuff shell 41 to prevent dust from entering the earmuff shell 41.

[0027] See also Figure 9 、 Figure 11 and Figure 12As shown, the second noise reduction mechanism 45 includes a noise reduction frame 451, a pressing rod 452 is fixedly installed in the middle part of the noise reduction frame 451, a limit frame 453 is fixedly installed on the outer surface of the noise reduction frame 451, a slide groove 454 is opened on the outer surface of the limit frame 453, a second buffer block 455 is provided in the middle part of the noise reduction frame 451, a third slide rod 456 is fixedly installed on the outer surface of the second buffer block 455, a gasket 457 is sleeved on the outer surface of the third slide rod 456, and a fourth spring is sleeved on the outer surface of the third slide rod 456. 458, an alarm 459 is fixedly installed on the inner wall of the second buffer block 455, a fixed block 4510 is fixedly installed on the inner wall of the second buffer block 455, and a button 4511 is provided on the outer surface of the fixed block 4510. The third slide bar 456 is slidably connected to the slide groove 454, and the gasket 457 is slidably connected to the inner wall of the limit frame 453. The fourth spring 458 is located between the second buffer block 455 and the gasket 457. There is a gap between the pressing rod 452 and the button 4511. The button 4511 is electrically connected to the alarm 459. Pressing the button 4511 controls the alarm 459 to sound an alarm. The outer surface of the second buffer block 455 is fixedly connected to the speaker 46, and the noise reduction frame 451 is fixedly connected to the inner wall of the earmuff shell 41. When the speaker 46 is working, it generates a certain degree of vibration. The vibration of the speaker 46 drives the second buffer block 455 to vibrate, and the vibration of the second buffer block 455 drives the third slide bar 456 to slide in the inner cavity of the slide groove 454. During this process, the elastic force of the gasket 457 causes the second buffer block 455 to return to its original position, thereby reducing the impact of the vibration of the speaker 46 on the entire headset, making the noise generated by the speaker 46 smaller, and cooperating with the noise reduction of the first noise reduction mechanism 43 to achieve dual noise reduction inside and outside, thereby improving the overall sound quality of the headset. At the same time, when the noise is really too large, the pressing rod 452 on the noise reduction frame 451 and the button 4511 on the fixed block 4510 contact and squeeze, thereby driving the alarm 459 to sound an alarm, reminding the user that the vibration of the speaker 46 is too large and the headset needs maintenance, so that timely maintenance can be carried out when the speaker 46 fails.

[0028] In summary, the side beams 2 can be stretched in the inner cavity of the head beam 1 to adjust the position of the earmuff assembly 4, and the head beam 1 and the side beams 2 are stretched by external force and fixed by the friction brought by traditional buckles. The buffer assembly 3 is used to buffer the earmuff assembly 4, reducing the impact of the user on the earmuff assembly 4 when walking and running, so that the earmuff assembly 4 can be stably placed on the user's ears. The earmuff assembly 4 has good noise reduction and ventilation effects. The earmuff assembly 4 can be rotated in the inner cavity of the connecting frame 31 to adjust the angle of the earmuff assembly 4, and the first buffer mechanism 33 can be used to rotate and adjust the angle of the earmuff assembly 4 on the rotating rod 32, so that the earmuff assembly 4 can fit the user's ears according to the person's face shape. The first buffer mechanism 33 and the second buffer mechanism 34 can reduce the impact of the shaking caused by the user when walking and running on the earmuff assembly 4, thereby improving the earmuff The stability of the component 4 is to avoid the position of the earmuff component 4 being shifted when walking or running after the position of the earmuff component 4 is adjusted. The second insertion rod 35 is used to adjust the position of the connecting frame 31, so as to adjust the position of the earmuff component 4 to ensure comfort when wearing. The connecting shell 42 is used to connect the earmuff shell 41 and the first noise reduction mechanism 43. The first noise reduction mechanism 43 has a noise reduction effect and can be adapted to users wearing glasses and those not wearing glasses for use respectively, so that the first noise reduction mechanism 43 can fit closely to the human head to prevent the glasses frame from causing a gap between the first noise reduction mechanism 43 and the head. The ventilation mechanism 44 is used to adjust the ventilation effect and can be adjusted according to user needs. The second noise reduction mechanism 45 flexibly fixes the speaker 46 on the inner wall of the earmuff shell 41, reducing the impact of the speaker 46 on the earmuff shell 41 when it vibrates, thereby reducing noise.

[0029] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to include such changes and modifications.

[0030] The above is only a preferred specific implementation method of the embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes based on the technical solution and concept of the present application within the technical scope disclosed in the present application, and they should be covered by the scope of protection of the present application.

Claims

1. A head-mounted noise reduction headset, comprising a head beam (1) and side beams (2), characterized in that: Both ends of the head beam (1) are slidably connected to side beams (2), the bottom ends of the side beams (2) are provided with buffer assemblies (3), the inner cavity of the side beams (2) is rotatably connected to earmuff assemblies (4), and there are two side beams (2), two buffer assemblies (3) and two earmuff assemblies (4); The earmuff assembly (4) comprises an earmuff shell (41), the earmuff shell (41) is sleeved with a connecting shell (42), a small hole is opened in the middle of the connecting shell (42), a first noise reduction mechanism (43) is provided on the outer surface of the connecting shell (42), a ventilation mechanism (44) is provided in the inner cavity of the earmuff shell (41), a second noise reduction mechanism (45) is provided on the inner wall of the earmuff shell (41), and a speaker (46) is fixedly mounted on the outer surface of the second noise reduction mechanism (45).

2. The noise-canceling headphone according to claim 1, wherein: The first noise reduction mechanism (43) comprises an ear pad sleeve (431), the outer surface of the ear pad sleeve (431) is provided with a pleated layer (432), the inner cavity of the ear pad sleeve (431) is provided with a filling block (433), the outer surface of the filling block (433) is fixedly connected to a push rod (434), the inner cavity of the push rod (434) is slidably connected to a storage rod (435), the outer surface of the push rod (434) is fixedly mounted with a second fixing ring (436), and the push rod (434) is fixedly mounted with a second fixing ring (436). A first snap ring (437) is fixedly mounted on one end away from the filling block (433); a second snap ring (438) is slidably connected to the outer surface of the push rod (434); clamping blocks (439) are provided on both sides of the push rod (434); an elastic rod (4310) is fixedly mounted on the outer surface of the clamping block (439); a third spring (4311) is sleeved on the outer surface of the elastic rod (4310); and a limiting block (4312) is sleeved on the outer surface of the elastic rod (4310).

3. The noise-canceling headphone according to claim 2, wherein: The ear pad sleeve (431) is filled with sound insulation cotton, the filling block (433) is located at the pleated layer (432), the push rod (434) passes through the inner cavity of the connecting shell (42), the second fixing ring (436) and the second clamping ring (438) are both magnets, and the outer surfaces close to each other are of different poles, the first clamping ring (437) and the second clamping ring (438) are symmetrically distributed, the second clamping ring (438) is thinner at one end close to the second fixing ring (436), and gradually becomes thicker along the direction of the storage rod (435), the clamping block (439) is engaged with the first clamping ring (437), and the inner cavity of the push rod (434) is provided with a fifth The fifth spring is located between the inner wall of the push rod (434) and the storage rod (435), the third spring (4311) is fixedly connected to the inner wall of the connecting shell (42), the elastic rod (4310) and the third spring (4311) are slidably connected, the limit block (4312) is located between the clamping block (439) and the third spring (4311), the side of the clamping block (439) close to the second fixing ring (436) is an inclined surface, the storage rod (435) is fixedly connected to the outer surface of the earmuff shell (41), and the second fixing ring (436) passes through the inner cavity of the connecting shell (42) when the push rod (434) slides.

4. The noise-canceling headphone according to claim 1, wherein: The ventilation mechanism (44) comprises a ventilation plate (441), a ventilation pipe (442) is fixedly mounted on the lower surface of the ventilation plate (441), a ventilation hole (443) is provided at the bottom end of the ventilation pipe (442), a second slider (444) is fixedly mounted on the outer surface of the ventilation plate (441), the second slider (444) is slidably connected to the earmuff shell (41), and the ventilation pipe (442) is slidably connected to the ventilation plate (441).

5. The noise-canceling headphone according to claim 1, wherein: The second noise reduction mechanism (45) includes a noise reduction frame (451), a pressing rod (452) is fixedly installed in the middle part of the noise reduction frame (451), a limit frame (453) is fixedly installed on the outer surface of the noise reduction frame (451), and a sliding groove (454) is provided on the outer surface of the limit frame (453), a second buffer block (455) is provided in the middle part of the noise reduction frame (451), a third slide bar (456) is fixedly installed on the outer surface of the second buffer block (455), a gasket (457) is sleeved on the outer surface of the third slide bar (456), and a fourth spring (458) is sleeved on the outer surface of the third slide bar (456), an alarm (459) is fixedly installed on the inner wall of the second buffer block (455), a fixed block (4510) is fixedly installed on the inner wall of the second buffer block (455), and a button (4511) is provided on the outer surface of the fixed block (4510).

6. The noise-cancelling headphone according to claim 5, wherein: The third sliding rod (456) is slidably connected to the sliding groove (454), the gasket (457) is slidably connected to the inner wall of the limit frame (453), the fourth spring (458) is located between the second buffer block (455) and the gasket (457), there is a gap between the pressing rod (452) and the button (4511), the button (4511) and the alarm (459) are electrically connected, and pressing the button (4511) controls the alarm (459) to sound an alarm, the outer surface of the second buffer block (455) is fixedly connected to the speaker (46), and the noise reduction frame (451) is fixedly connected to the inner wall of the earmuff shell (41).

7. The noise-canceling headphone according to claim 1, wherein: The buffer assembly (3) comprises a connecting frame (31), the connecting frame (31) and the earmuff shell (41) are rotatably connected, a rotating rod (32) is fixedly mounted on the upper surface of the connecting frame (31), a first buffer mechanism (33) is rotatably connected to the upper surface of the rotating rod (32), a second buffer mechanism (34) is provided at the bottom end of the side beam (2), and a second insertion rod (35) is provided at the bottom end of the second buffer mechanism (34).

8. The noise-canceling headphone according to claim 7, wherein: The first buffer mechanism (33) includes a connecting rod (331), the outer surface of the connecting rod (331) is slidably connected to a first slider (332), both ends of the first slider (332) are fixedly mounted with slip rings (333), the outer surface of the slip ring (333) is fixedly sleeved with a connecting tube (334), the bottom end of the slip ring (333) is slidably connected to a first fixing ring (335), the middle portion of the first fixing ring (335) is fixedly connected to a fixing rod (336), and the first fixing ring (335) is fixedly connected to the first fixing ring (335). ) is fixedly connected to the outer surface of a first slide bar (337), the outer surface of the first slide bar (337) is sleeved with a first spring (338), and two first springs (338) are sleeved on one first slide bar (337), the first springs (338) are located on both sides of the inner wall of the slip ring (333), and the first spring (338) at the bottom end is located between the first fixed ring (335) and the inner wall of the slip ring (333), and the first spring (338) at the top end is located between the first slide bar (337) and the inner wall of the slip ring (333).

9. The noise-cancelling headphone according to claim 8, wherein: The fixing rod (336) is fixedly connected to the bottom end of the side beam (2), the inner cavity of the first slider (332) is provided with a sixth spring, the inner cavity of the first slider (332) is slidably connected to the second insertion rod (35), and the sixth spring is elastically connected to the second insertion rod (35), and the rotating rod (32) is rotatably connected to the first slider (332).

10. The noise-cancelling headphone according to claim 9, wherein: The second buffer mechanism (34) includes a first buffer block (341), a first insertion rod (342) is provided on the outer surface of the first buffer block (341), second slide rods (343) are fixedly installed at both ends of the first buffer block (341), a second spring (344) is sleeved on the outer surface of the second slide rod (343), a connecting block (345) is fixedly installed on the lower surface of the side beam (2), the second slide rod (343) and the connecting block (345) are slidably connected, the second spring (344) is located between the first buffer block (341) and the connecting block (345), the top end of the second insertion rod (35) is engaged with the first insertion rod (342), and the first buffer block (341) and the side beam (2) are slidably connected.

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