Air conduction earphone

Abstract

The invention provides an air conduction earphone, which comprises a head band assembly and two earmuff assemblies, and is characterized in that the two earmuff assemblies are respectively arranged at two ends of the head band assembly; the earmuff assembly comprises: an earmuff body; and earplugs. According to the air conduction earphone provided by the invention, the earplug is arranged in the earmuff assembly, the earplug extends into the ear canal of the testee for sealing, and the earplug can move to adapt to the ear canal of the testee, so that the sealing effect of the earplug on the ear canal is ensured; the problem that the ear of a testee is sealed only by means of a cover shell of the earmuff and cannot be sealed reliably in the prior art is solved, the test accuracy is effectively improved, meanwhile, repeated tests can be avoided, the working efficiency is improved, and the test precision of the hearing loss degree of the testee is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hearing tests and hearing impairment diagnoses, and particularly to an air-conduction headphone. Background Art

[0002] The pure-tone audiometry air-conduction headphone is a device designed specifically for hearing detection and impairment diagnosis. It utilizes the air-conduction principle to transmit pure-tone signals of different frequencies and intensities to the subject through the headphone, thereby accurately measuring the hearing threshold. In clinical applications, doctors can accurately judge the degree and nature of hearing loss by comparing the hearing threshold differences between the healthy ear and the affected ear, providing strong support for the early detection, diagnosis, and treatment of hearing impairments.

[0003] Currently, some deficiencies have emerged in the actual use of pure-tone audiometry air-conduction headphones on the market. Among them, the pure-tone audiometry air-conduction headphone requires complete sealing of the tester's ears. However, the structure of the ear pads cannot be adjusted according to the shape of the tester's ears, the shape of the face, etc., making it impossible to achieve the required sealing effect in actual use, seriously affecting the test accuracy and reducing the working efficiency of the hearing test. The tester may need to repeatedly adjust the position of the headphone or even retest, which not only increases the time cost of the test but may also lead to errors and inconsistencies in the test results, thereby affecting the accurate assessment of the degree of hearing loss. Summary of the Invention

[0004] In order to solve the technical problem of poor test accuracy of the pure-tone audiometry air-conduction headphone in the prior art, an air-conduction headphone is provided that can adjust two ear pad components and simultaneously adjust the depth of the earplug inserted into the ear canal to improve the test accuracy.

[0005] An air-conduction headphone includes a headband component and two earcup components, and the two earcup components are respectively arranged at both ends of the headband component;

[0006] The earcup component includes:

[0007] An earcup body, and the earcup body is arranged on the headband component;

[0008] An earplug, and the earplug is movably arranged on the earcup body, and the earplug can be moved to adjust the depth of insertion into the ear canal;

[0009] An air vent is arranged on the earplug, and the air vents of the two earplugs are both communicated with a preset instrument through a gas pipeline.

[0010] The air-conduction headphone further includes a driving structure, and the driving structure is arranged on the earcup body and is connected to the earplug to drive the earplug to move.

[0011] The driving structure includes a knob which is rotatably arranged on the earcup body, and the knob can be rotated to adjust the length extending into the earcup body, and the earplug is connected to the knob.

[0012] The earplug is located on the inner side of the earcup body, the knob is located on the outer side of the earcup body, and the knob can be rotated to approach or move away from the earplug.

[0013] The driving structure further includes a screwing shaft which is movably arranged in the earcup body. The knob is connected to one end of the screwing shaft away from the earplug. The knob can drive the screwing shaft to rotate by rotation, and the other end of the screwing shaft abuts and cooperates with the earplug.

[0014] Internal threads are arranged in the earcup body, external threads are arranged on the screwing shaft, and the external threads are in threaded cooperation with the internal threads. The screwing shaft moves linearly in the earcup body by rotation.

[0015] The air conduction headphone further includes a reset mechanism which is arranged in the earcup body. The earplug is connected to the reset mechanism, and the reset mechanism can drive the earplug to retract into the earcup body.

[0016] The reset mechanism includes an elastic plate. The middle part of the elastic plate is sleeved on the earplug, and the edge of the elastic plate is fixedly arranged on the earcup body. The elastic plate can deform to drive the earplug to move.

[0017] The air conduction headphone further includes a first pipeline and a second pipeline. The two earcup assemblies include a first earcup assembly and a second earcup assembly. The ventilation hole of the first earcup assembly is communicated with the preset instrument through the first pipeline, and the ventilation hole of the second earcup assembly is communicated with the preset instrument through the second pipeline.

[0018] The second pipeline is connected to the preset instrument after passing through the headband assembly and the first earcup assembly in sequence.

[0019] The air conduction headphone further includes a detection mechanism which is arranged in the first earcup assembly. Both the first pipeline and the second pipeline are connected to the detection mechanism.

[0020] The air conduction headphone further includes a connecting pipeline. The two earcup assemblies include a first earcup assembly and a second earcup assembly. One end of the connecting pipeline is communicated with the preset instrument, and the other end of the connecting pipeline is respectively communicated with the ventilation hole of the first earcup assembly and the ventilation hole of the second earcup assembly.

[0021] The headband assembly includes a headband body and two sliding members. An earcup assembly is provided on one of the sliding members, and the two sliding members are movably provided on the headband body to adjust the positions between the two earcup assemblies.

[0022] A plurality of first engaging members are provided on the headband body, and a plurality of second engaging members are provided on the sliding member. All the first engaging members are arranged in sequence along the sliding direction of the sliding member, all the second engaging members are arranged in sequence along the sliding direction of the sliding member, and any one of the first engaging members can be engaged and cooperated with any one of the second engaging members.

[0023] The shape of the ventilation hole is spiral; or, in the same earplug, the number of the ventilation holes is at least two, and all the ventilation holes are arranged in an array.

[0024] The air-conduction earphone provided by the present invention is provided with earplugs in the earcup assembly, and the earplugs are used to extend into the ear canal of the tester for sealing, and the earplugs can move to adapt to the ear canal of the tester, so as to ensure the sealing effect of the earplugs on the ear canal, overcome the problem in the prior art that only the housing of the earcup is used to seal the ears of the tester and cannot be reliably sealed, effectively improve the test accuracy, and at the same time can also avoid repeated tests to improve the work efficiency and improve the test accuracy of the hearing loss degree of the tester. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the air-conduction earphone provided by the embodiment of the present invention;

[0026] Figure 2 is a cross-sectional view of the air-conduction earphone provided by the embodiment of the present invention;

[0027] Figure 3 is an exploded view of the air-conduction earphone provided by the embodiment of the present invention;

[0028] Figure 4 is a schematic internal structural diagram of the first earcup assembly provided by the embodiment of the present invention;

[0029] Figure 5 is a cross-sectional view of the first earcup assembly provided by the embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of the earplug and the ventilation hole provided by the embodiment of the present invention;

[0031] In the figure:

[0032] 1. Headband assembly; 21. Earphone body; 22. Earplug; 23. Ventilation hole; 24. Knob; 25. Screw shaft; 26. Elastic plate; 31. First pipeline; 32. Second pipeline; 27. First earphone assembly; 28. Second earphone assembly; 4. Detection mechanism; 51. Ear sleeve; 52. Guide block; 11. Headband body; 12. Sliding part; 6. Air diversion block. Detailed implementation mode

[0033] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention 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 the present invention and are not used to limit the present invention.

[0034] In order to enable those skilled in the art of this technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0035] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and do not have to be used to describe a specific order or sequence. It should be understood that such terms can be interchanged under appropriate circumstances so as to describe the embodiments of the present invention here. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0036] It should be noted that in the description of the present invention, the terms indicating the direction or positional relationship such as "upper", "lower", "left", "right", "inner", "outer", etc. are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0037] In addition, it should be noted that in the description of the present invention, unless otherwise clearly defined and limited, the terms "installation", "setting", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can also be the communication inside two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] At present, some deficiencies have emerged in the actual use of pure-tone audiometry air-conduction headphones on the market. Among them, pure-tone audiometry air-conduction headphones require complete sealing of the tester's ears. However, the structure of the earcups cannot be adjusted according to the shape of the tester's ears, the shape of the face, etc., so that the pure-tone audiometry air-conduction headphones cannot achieve the required sealing effect in actual use, seriously affecting the test accuracy and reducing the work efficiency of the hearing test. The tester may need to repeatedly adjust the position of the headphones or even retest, which not only increases the time cost of the test but also may lead to errors and inconsistencies in the test results, thereby affecting the accurate assessment of the degree of hearing loss.

[0039] Therefore, this application provides an air-conduction headphone as shown in Figures 1 to 6 which includes a headband assembly 1 and two earcup assemblies. The two earcup assemblies are respectively arranged at both ends of the headband assembly 1; the earcup assembly includes: an earcup body 21, and the earcup body 21 is arranged on the headband assembly 1; an earplug 22, and the earplug 22 is movably arranged on the earcup body 21, and the earplug 22 can move to adjust the depth of insertion into the ear canal; a ventilation hole 23 is arranged on the earplug 22, and the ventilation holes 23 of the two earplugs 22 are both connected to a preset instrument through a gas pipeline. By arranging the earplug 22 inside the earcup assembly and using the earplug 22 to extend into the tester's ear canal for sealing, and enabling the earplug 22 to move to adapt to the tester's ear canal, the sealing effect of the earplug 22 on the ear canal is ensured, overcoming the problem in the prior art that only relying on the housing of the earcup to seal the tester's ears cannot achieve reliable sealing, effectively improving the test accuracy, and at the same time being able to avoid repeated tests and improve the work efficiency, and improving the test accuracy of the degree of hearing loss of the tester.

[0040] During use, the tester or operator holds an earcup assembly with each hand and increases the distance between the two earcup assemblies. After the distance between the two earcup assemblies exceeds the distance between the tester's two ears, the air-conduction headphones are worn on the head. At this time, the headband assembly 1 will deform due to the increased distance between the two earcup assemblies, and after the air-conduction headphones are worn on the head, the headband assembly 1 will return to its original state to clamp the tester's head with the two earcup assemblies. At the same time, the earplug 22 will extend into the ear canal in the corresponding direction of the tester as the earcup assembly moves. Since the ear canal shapes of different testers are different, the position of the earplug 22 can be adjusted at this time so that the earplug 22 can extend into the part of the ear canal with the corresponding size, thereby ensuring the complete seal of the earplug 22 to the ear canal. Then, a test gas can be provided to the vent hole 23 of the earplug 22 for testing, overcoming the problem in the prior art that only earcups are provided and the ear canal cannot be sealed, effectively improving the test accuracy and the test precision of the hearing loss degree of the tester.

[0041] As an implementation manner, the air-conduction headphones further include a driving structure. The driving structure is disposed on the earcup body 21, and the driving structure is connected to the earplug 22 to drive the earplug 22 to move. The tester or operator can operate the driving structure, so that the position of the earplug 22 can be adjusted independently, which can not only ensure reliable sealing of the ear canal, but also avoid the earplug 22 being adjusted too deep and causing discomfort to the tester.

[0042] Specifically, the driving structure includes a knob 24. The knob 24 is rotatably disposed on the earcup body 21, and the knob 24 can be rotated to adjust the length extending into the earcup body 21. The earplug 22 is connected to the knob 24. When adjusting the earplug 22, the earplug 22 can be driven to move along the ear canal by rotating the knob 24. The rotation of the knob 24 can be used to finely adjust the earplug 22, avoiding the earplug 22 moving too fast and extending too deep into the ear canal, and ensuring the comfort of the tester. Optionally, the driving structure can also be a slider structure, and the slider can move linearly to achieve the movement of the earplug 22; the driving structure can also be a spring, and the earplug 22 is moved by the expansion and contraction of the spring.

[0043] The earplug 22 is located on the inner side of the earcup body 21, and the knob 24 is located on the outer side of the earcup body 21. The knob 24 can be rotated closer to or farther away from the earplug 22. After the air-conduction headphone is worn on the tester's head, the tester or operator can directly operate the knob 24 on the outside of the earcup assembly, improving the operation convenience of the air-conduction headphone. The knob 24 and the earplug 22 are arranged on opposite sides of the earcup body 21, which can also directly transmit the axial movement generated by the rotation of the knob 24 to the earplug 22, reducing the structural complexity of the earcup assembly and the possibility of damage to the air-conduction headphone.

[0044] Since the knob 24 rotates when extending into or out of the earcup body 21, while the earplug 22 only needs to perform a linear movement in the ear canal, for this reason, the driving structure further includes a screwing shaft 25. The screwing shaft 25 is movably arranged in the earcup body 21. The knob 24 is connected to one end of the screwing shaft 25 away from the earplug 22. The knob 24 can drive the screwing shaft 25 to rotate by rotation. The other end of the screwing shaft 25 is in abutting cooperation with the earplug 22. By using the knob 24 to drive the screwing shaft 25 to rotate, the screwing shaft 25 converts the rotation into a linear movement to drive the earplug 22, realizing the linear movement of the earplug.

[0045] Optionally, an internal thread is provided in the earcup body, and an external thread is provided on the screwing shaft 25. The external thread is in threaded cooperation with the internal thread, and the screwing shaft 25 performs a linear movement in the earcup body by rotation. The threaded engagement between the screwing shaft 25 and the earcup body can convert the rotational movement into a linear movement along the axis, thereby ensuring the reliable movement of the earplug.

[0046] The knob 24 and the screwing shaft 25 are inserted and connected through an insert block and a slot with a non-circular cross-section (such as a square). The screwing shaft 25 is fixed on a bearing, and the bearing is fixed on the earcup body 21. The screwing shaft 25 is in threaded connection with the earcup body 21. The guiding block of the earplug 22 is in abutting cooperation with the screwing shaft 25. By rotating the knob 24, the knob 24 drives the screwing shaft 25 to perform a 360-degree rotation in place. Since the guiding block is in the square groove of the earcup body 21 and cannot perform a rotational movement, it can only perform a forward and backward sliding movement. The screwing shaft 25 can push the earplug 22 to perform a linear movement through threaded connection.

[0047] As another implementation, threaded holes are provided on the earcup body 21, external threads are provided on the knob 24, and the external threads are in threaded engagement with the threaded holes to achieve the movement of the knob 24. During the rotation of the knob 24, due to the meshing of the external threads and the internal threads of the threaded holes, the knob 24 can slowly enter the earcup body 21, and then can drive the earplug 22 to move slowly. At the same time, the driving structure further includes a screwing shaft 25, the screwing shaft 25 is movably arranged in the earcup body 21, the knob 24 is located at the end of the earcup body 21 and abuts against the screwing shaft 25, and the end of the screwing shaft 25 away from the knob 24 abuts against the earplug 22. When the knob 24 rotates, it will squeeze the screwing shaft 25 to move linearly. The rotation of the knob 24 will not be transmitted to the screwing shaft 25, and then the earplug 22 is driven by the screwing shaft 25, so as to achieve the purpose that the earplug 22 only moves linearly, avoid the problem that the earplug 22 rotates in the ear canal and rubs against the ear canal, and ensure the use comfort of the tester.

[0048] Due to the arrangement of the screwing shaft 25, the knob 24 can only squeeze the earplug 22 outward to move, and cannot drive the earplug 22 into the earcup body 21, that is, it can only squeeze the earplug 22 deeper into the ear canal, and cannot adjust the earplug 22 outward from the ear canal. For this reason, the air conduction earphone further includes a reset mechanism, the reset mechanism is arranged in the earcup body 21, the earplug 22 is connected to the reset mechanism, and the reset mechanism can drive the earplug 22 to retract into the earcup body 21. The reset mechanism is used to achieve the purpose of adjusting the earplug 22 outward from the ear canal. When adjusting the earplug 22, the knob 24 rotates forward (the knob 24 moves in the direction close to the earplug 22) to squeeze the earplug 22 deeper into the ear canal. At this time, the reset mechanism can generate a reset force as the earplug 22 moves. When the knob 24 rotates backward (the knob 24 moves in the direction away from the earplug 22), the reset mechanism releases the reset force to pull the earplug 22 out of the ear canal, so as to achieve the movement adjustment of the earplug 22.

[0049] Specifically, such as Figure 2 and 3As shown, the reset mechanism includes an elastic plate 26. The middle part of the elastic plate 26 is sleeved on the earplug 22, and the edge of the elastic plate 26 is fixedly arranged on the earcup body 21. The elastic plate 26 can deform to drive the earplug 22 to move. When the knob 24 rotates forward to squeeze the earplug 22, the earplug 22 will drive the middle part of the elastic plate 26 to move. At this time, the elastic plate 26 is forced to deform. When the knob 24 rotates backward, the knob 24 stops squeezing the earplug 22, and the elastic plate 26 begins to return to its original state and drives the earplug 22 to move, achieving the purpose of driving the earplug 22 to reset. At this time, the knob 24 and the elastic plate 26 cooperate together to ensure that the earplug 22 can move reliably in the direction of inserting into or withdrawing from the ear canal. Preferably, the material of the earplug 22 can be silicone or memory foam.

[0050] Since the earplug 22 is provided in both earcup assemblies, the air-conduction headphone can simultaneously block and seal the two ear canals of the tester for synchronous testing. For this reason, the air-conduction headphone further includes a first pipeline 31 and a second pipeline 32. The two earcup assemblies include a first earcup assembly 27 and a second earcup assembly 28. The ventilation hole 23 of the first earcup assembly 27 is connected to the preset instrument through the first pipeline 31, and the ventilation hole 23 of the second earcup assembly 28 is connected to the preset instrument through the second pipeline 32. The first pipeline 31 is used to supply air to the earplug 22 of the first earcup assembly 27, and the second pipeline 32 is used to supply air to the earplug 22 of the second earcup assembly 28. The preset instrument can provide corresponding gases according to the detection requirements to achieve the separate detection of the two ears, further reducing the operation complexity of the test. When the tester only needs to detect one ear, the earplug 22 and the earcup on the other side can also increase the fixed sealing effect of this ear on the earplug 22, improving the detection accuracy and the test accuracy of the degree of hearing loss.

[0051] Preferably, the shape of the ventilation hole 23 is spiral. By using the shape of the ventilation hole 23, no foreign objects (such as cerumen) will enter the ventilation hole 23 during the process of inserting into the ear canal, causing blockage of the ventilation hole 23, ensuring the reliability of the use of the earplug and the air-conduction headphone.

[0052] Or, as Figure 6 shown, in the same earplug 22, the number of the ventilation holes 23 is at least two, and all the ventilation holes 23 are arranged in an array. By increasing the number of the ventilation holes 23, the diameter of a single ventilation hole 23 can be reduced, so that no foreign objects (such as cerumen) will enter the ventilation hole 23 during the process of the earplug 22 inserting into the ear canal, causing blockage of the ventilation hole 23, ensuring the reliability of the use of the earplug and the air-conduction headphone.

[0053] The second pipeline 32 sequentially passes through the headband assembly 1 and the first earcup assembly 27 and then is connected to the preset instrument. That is, the second pipeline 32 is arranged in the headband assembly 1, so that the first pipeline 31 and the second pipeline 32 connected to the preset instrument are both located at the first earcup assembly 27. The air circuit is more concentrated and tidy, making the product simpler from complex, reducing the wearing time, improving work efficiency, and reducing the discomfort of the patient caused by wearing. Among them, a wire groove is arranged in the headband assembly 1, the second pipeline 32 is arranged in the wire groove, and a decorative part is arranged on the headband assembly 1 to fix the wire groove, so that there are not too many branches on the surface of the air conduction earphone, reducing the wearing time of the product, making the product look more simple, and improving the user experience of the tester.

[0054] The air conduction earphone further includes a detection mechanism 4, the detection mechanism 4 is arranged in the first earcup assembly 27, and both the first pipeline 31 and the second pipeline 32 are connected to the detection mechanism 4. Integrating the detection mechanism 4 in the first earcup assembly 27 facilitates the connection between the detection mechanism 4 and the first pipeline 31 and the second pipeline 32, and can also increase the functions of the air conduction earphone.

[0055] Optionally, a detection mechanism 4 can also be arranged in the second earcup assembly 28. The detection mechanism 4 in the second earcup assembly 28 is only connected to the second pipeline 32. At this time, the size of the detection mechanism 4 in the first earcup assembly 27 can be reduced, the mass of the two earcup assemblies can be balanced to avoid inconsistent weights on both sides of the air conduction earphone, and the user experience of the tester can be improved.

[0056] Since both the first pipeline 31 and the second pipeline 32 are supported by flexible pipelines, as Figure 2 shown, a gas transfer block 6 is arranged in the first earcup assembly 27. The gas transfer block 6 has one inlet and two outlets. The first pipeline 31 is connected to the inlet of the gas transfer block 6, and the two outlets are respectively connected to the earplug 22 of the first earcup assembly 27 and the detection mechanism 4 in the first earcup assembly 27. The gas transfer block 6 is fixedly arranged in the first earcup body 21, which can play a role in fixing the first pipeline 31, avoiding problems such as winding and bending of the first pipeline 31 moving freely in the first earcup body 21, and ensuring the structural reliability of the air conduction earphone.

[0057] Similarly, a gas transfer block 6 is provided inside the second earcup assembly 28. The gas transfer block 6 has one inlet and two outlets. The second pipeline 32 is connected to the inlet of the gas transfer block 6, and the two outlets are respectively connected to the earplug 22 of the second earcup assembly 28 and the detection mechanism 4 inside the second earcup assembly 28. The gas transfer block 6 is fixedly arranged inside the second earcup body 21, which can play a role in fixing the second pipeline 32, avoiding problems such as winding and bending caused by the free movement of the second pipeline 32 inside the second earcup body 21, and ensuring the structural reliability of the air-conduction earphone.

[0058] Optionally, the gas transfer blocks 6 corresponding to the first earcup assembly 27 and the gas transfer blocks 6 corresponding to the second earcup assembly 28 are both arranged inside the first earcup assembly 27. At this time, an additional connecting pipeline is arranged between the first earcup assembly 27 and the second earcup assembly 28. One outlet of the gas transfer block 6 corresponding to the second earcup assembly 28 is connected to the earplug 22 of the second earcup assembly 28 through the connecting pipeline. Arranging the gas transfer blocks 6 all inside the first earcup assembly 27 can further fix the pipeline between the air-conduction earphone and the preset instrument, improving the structural reliability of the air-conduction earphone.

[0059] The earcup assembly further includes an ear pad 51. The ear pad 51 is arranged on the inner side surface of the earcup body 21. The ear pad 51 is used to fit the face around the tester's ear and wrap the whole ear. The earplug 22 is located in the middle of the ear pad 51. When in use, the earplug 22 extends into the tester's ear canal, and at the same time the ear pad 51 completely wraps the whole ear, further increasing the sealing effect and also being able to improve the comfort of the tester when wearing the earcup assembly by using the soft material of the ear pad 51.

[0060] In order to further improve the structural reliability and appearance beauty of the air-conduction earphone, a jacket is also arranged between the head of the earplug 22 and the earcup body 21. The end of the jacket is fixed on the elastic plate 26 by a snap ring. That is, it can improve the beauty by covering the distance between the head of the earplug 22 and the earcup body 21 with the jacket, and can also ensure the reliable connection between the elastic plate 26 and the earplug 22, ensuring that the elastic plate 26 can reliably drive the earplug 22 to reset. Preferably, the jacket is a silica gel sleeve. The silica gel sleeve has good stretchability, can prevent the internal components from being exposed outside, is waterproof and dustproof. It is also easy to form into different shapes, further improving the beauty of the air-conduction earphone.

[0061] At the same time, in order to ensure the reliable movement of the earplug 22, a guiding member 52 is arranged inside the earcup body 21. The guiding member 52 is used to limit the earplug 22 to move linearly only. The cross-section of the part of the earplug 22 that cooperates with the guiding member 52 is non-circular (such as square), so as to further suppress the rotation of the earplug 22, avoid the relative rotational movement between the earplug 22 and the ear canal, and improve the comfort of the tester.

[0062] Optionally, the cross-section of the earplug 22 is circular or oval, so that the earplug 22 can better adapt to the shape of the ear canal and improve the sealing effect on the ears of the tester. The shape of the earplug 22 can be conical, cylindrical, frustum-shaped, etc.

[0063] As another embodiment, the air-conduction earphone further includes a connecting pipeline. The two earcup assemblies include a first earcup assembly 27 and a second earcup assembly 28. One end of the connecting pipeline is communicated with the preset instrument, and the other end of the connecting pipeline is respectively communicated with the ventilation holes 23 of the first earcup assembly 27 and the ventilation holes 23 of the second earcup assembly 28. At this time, the air-conduction earphone is communicated with the preset instrument through a connecting pipeline, and then shunted in the first earcup assembly 27, so as to ensure that the ventilation holes 23 of the two earplugs 22 are both communicated with the preset instrument. That is, in this embodiment, the air-conduction earphone is only communicated with the preset instrument through a connecting pipeline, and then the gas sent by the connecting pipeline is shunted in the first earcup assembly 27 and sent to the earplugs 22 of the first earcup assembly 27 and the earplugs 22 of the second earcup assembly 28 respectively, further reducing the structural complexity of the air-conduction earphone and improving the structural reliability of the air-conduction earphone.

[0064] The headband assembly 1 includes a headband body 11 and two sliding members 12. One sliding member 12 is provided with one earcup assembly, and the two sliding members 12 are movably arranged on the headband body 11 to adjust the positions between the two earcup assemblies. By setting the sliding members 12, the position adjustment between the two earcup assemblies is realized, so as to realize the adaptation to different people and increase the applicable range of the air-conduction earphone.

[0065] Specifically, a plurality of first clamping members are provided on the headband body 11, and a plurality of second clamping members are provided on the sliding member 12. All the first clamping members are arranged in sequence along the sliding direction of the sliding member 12, all the second clamping members are arranged in sequence along the sliding direction of the sliding member 12, and any one of the first clamping members can be clamped and matched with any one of the second clamping members. Through the clamping and matching of different first clamping members and second clamping members, the fixing of the sliding member 12 and the headband body 11 at different positions can be realized, and further the position adjustment of the two earcup assemblies is realized.

[0066] Optionally, a plurality of grooves arranged in sequence are provided on the headband body 11, and a plurality of protrusions arranged in sequence are provided on the sliding member 12. Each protrusion can be clamped and matched with any one of the grooves. When adjustment is needed, the protrusion can slide out of the groove under the action of an external force and continue to slide into another groove, and the clamping and matching between the sliding member 12 and the headband body 11 is realized again.

[0067] Furthermore, the earmuff assembly is hingedly matched with the headband body 11, so that the earmuff assembly can be rotated and adjusted relative to the headband body 11, and the earplug 22 of the earmuff assembly can maintain a comfortable angle with the ear canal, thereby improving the user experience of the tester. Similarly, the earmuff assembly is hingedly matched with the sliding member 12, so that the earmuff assembly can be rotated and adjusted relative to the sliding member 12, and the earplug 22 of the earmuff assembly can maintain a comfortable angle with the ear canal, thereby improving the user experience of the tester.

[0068] Optionally, a fan-shaped limiting boss is provided on the earmuff assembly, and a fan-shaped hole is provided on the headband body 11 and the sliding member 12. The fan-shaped limiting boss is rotatably provided in the fan-shaped hole, and the fan-shaped hole provides a certain angle clearance for the rotation of the fan-shaped limiting boss, so that the earmuff assembly can perform a circular motion around the fan-shaped limiting boss. When the movement reaches a certain angle, the side wall of the fan-shaped limiting boss abuts against the edge of the fan-shaped hole, limiting the rotation angle of the earmuff assembly, preventing the unlimited rotation of the earmuff assembly from causing folding damage to the wires or gas pipelines (such as the first pipeline 31, the second pipeline 32 or the connecting pipeline) in the air conduction earphone, thereby improving the structural reliability of the air conduction earphone.

[0069] When using the air conduction earphones of this application, the specific operations are as follows:

[0070] 1. Operation before putting on the air conduction headset:

[0071] Pick up the two earmuff assemblies with both hands at the same time, gently open the two earmuff assemblies to a position that exceeds the width of the head, lift the air conduction headset over the head, and when the earplugs 22 of the two earmuff assemblies are roughly aligned with the corresponding ear canal positions, gently release the two earmuff assemblies to make the two earmuff assemblies stick to the ears, and take both hands off the headset.

[0072] The knob 24 is rotated with both hands to achieve fine adjustment after the earplug 22 enters the ear canal, so that the earplug 22 can be adjusted to a suitable distance and force after entering the ear canal, making the tester more comfortable, the overall sealing better, and the success rate higher.

[0073] 2. Take off the air conduction headset and operate:

[0074] Pick up the two earmuff assemblies with both hands at the same time, gently open the two earmuff assemblies until the earplug 22 exceeds the width of the head, lift the earphone over the head, and gently move the two earmuff assemblies closer to the middle to restore them to a natural state.

[0075] The above-described embodiments merely represent several implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the appended claims.

Claims

1. An air conduction headphone, characterized in that: Comprising a headband assembly (1) and two earcup assemblies, the two earcup assemblies are respectively arranged at both ends of the headband assembly (1); The earcup assembly includes: An earcup body (21), the earcup body (21) is arranged on the headband assembly (1); An earplug (22), the earplug (22) is movably arranged on the earcup body (21), and the earplug (22) can be moved to adjust the depth of insertion into the ear canal; The earplug (22) is provided with a ventilation hole (23), and the ventilation holes (23) of the two earplugs (22) are both connected to a preset instrument through a gas pipeline.

2. The air conduction earphone according to claim 1, wherein: The air-conduction earphone further includes a driving structure, the driving structure is arranged on the earcup body (21), and the driving structure is connected to the earplug (22) to drive the earplug (22) to move.

3. The air conduction earphone according to claim 2, wherein: The driving structure includes a knob (24), the knob (24) is rotatably arranged on the earcup body (21), and the knob (24) can be rotated to adjust the length of insertion into the earcup body (21), and the earplug (22) is connected to the knob (24).

4. The air conduction earphone according to claim 3, characterized in that: The earplug (22) is located on the inner side surface of the earcup body (21), the knob (24) is located on the outer side surface of the earcup body (21), and the knob (24) can be rotated to approach or move away from the earplug (22).

5. The air conduction earphone according to claim 3, wherein: The driving structure further includes a screwing shaft (25), the screwing shaft (25) is movably arranged in the earcup body (21), the knob (24) is connected to one end of the screwing shaft (25) far from the earplug (22), the knob (24) can drive the screwing shaft (25) to rotate by rotation, and the other end of the screwing shaft (25) is in abutting cooperation with the earplug (22).

6. The air conduction headphone according to claim 5, characterized in that: Internal threads are provided in the earcup body (21), external threads are provided on the screwing shaft (25), the external threads are in threaded cooperation with the internal threads, and the screwing shaft (25) moves linearly in the earcup body (21) by rotation.

7. The air conduction earphone according to claim 2, wherein: The air-conduction earphone further includes a reset mechanism, the reset mechanism is arranged in the earcup body (21), the earplug (22) is connected to the reset mechanism, and the reset mechanism can drive the earplug (22) to retract into the earcup body (21).

8. The air-conduction earphone according to claim 7, wherein: The reset mechanism includes an elastic plate (26), the middle part of the elastic plate (26) is sleeved on the earplug (22), and the edge of the elastic plate (26) is fixedly arranged on the earcup body (21), and the elastic plate (26) can generate deformation to drive the earplug (22) to move.

9. The air conduction earphone according to claim 1, wherein: The air-conduction earphone further includes a first pipeline (31) and a second pipeline (32). The two earcup assemblies include a first earcup assembly (27) and a second earcup assembly (28). The ventilation hole (23) of the first earcup assembly (27) is communicated with the preset instrument through the first pipeline (31), and the ventilation hole (23) of the second earcup assembly (28) is communicated with the preset instrument through the second pipeline (32).

10. The air conduction earphone according to claim 9, wherein: The second pipeline (32) is sequentially connected to the preset instrument after passing through the headband assembly (1) and the first earcup assembly (27).

11. The air conduction earphone according to claim 9, wherein: The air-conduction earphone further includes a detection mechanism (4). The detection mechanism (4) is disposed within the first earcup assembly (27). Both the first pipeline (31) and the second pipeline (32) are communicated with the detection mechanism (4).

12. The air-conduction earphone according to claim 1, wherein: The air-conduction earphone further includes a connecting pipeline. The two earcup assemblies include a first earcup assembly (27) and a second earcup assembly (28). One end of the connecting pipeline is communicated with the preset instrument, and the other end of the connecting pipeline is respectively connected to the ventilation hole (23) of the first earcup assembly (27) and the ventilation hole (23) of the second earcup assembly (28).

13. The air conduction headphone according to claim 1, wherein: The headband assembly (1) includes a headband body (11) and two sliding members (12). One earcup assembly is disposed on one sliding member (12), and both sliding members (12) are movably disposed on the headband body (11) to adjust the positions between the two earcup assemblies.

14. The air conduction earphone according to claim 13, wherein: A plurality of first clamping members are disposed on the headband body (11), and a plurality of second clamping members are disposed on the sliding member (12). All the first clamping members are sequentially arranged along the sliding direction of the sliding member (12), all the second clamping members are sequentially arranged along the sliding direction of the sliding member (12), and any one of the first clamping members can be clamped and matched with any one of the second clamping members.

15. The air conduction earphone according to claim 1, wherein: The shape of the ventilation hole (23) is spiral; or, in the same earplug (22), the number of the ventilation holes (23) is at least two, and all the ventilation holes (23) are arranged in an array.

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