Stretchable ear clamping type Bluetooth earphone

Abstract

The invention relates to the technical field of Bluetooth earphones, in particular to a stretchable ear clamping type Bluetooth earphone which is placed in an earphone cabin and comprises an ear hook, an auxiliary ear shell, a battery, an adjusting assembly, a rubber sleeve, an extension assembly, a main ear shell, a sound production unit and a sealing film, the auxiliary ear shell is connected to the lower left end of the ear hook, and the battery is connected to an inner cavity of the auxiliary ear shell; the adjusting assembly is connected to the ear hook, the rubber sleeve is arranged on the peripheral face of the ear hook in a sleeving mode, the extension assembly is connected to the lower right end of the ear hook, the main ear shell is connected to the lower end of the extension assembly, the sound production unit is connected with an inner cavity of the main ear shell, and the sealing film is connected between the sound production unit and the main ear shell. And a sealing cavity is formed between the ear hook and the rubber sleeve. By arranging the movable main ear shell, the main ear shell is close to the ear canal, so that the interference degree of environmental sound is reduced, and in the process that the main ear shell is close to the ear canal, a vacuum space is formed in the main ear shell to wrap the sounding unit, so that the purpose of sound insulation is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of Bluetooth headsets, and specifically to a stretchable ear-clamping Bluetooth headset. Background Art

[0002] A Bluetooth headset is a wireless headset that connects to audio devices such as mobile phones, tablets, and computers through Bluetooth technology to achieve functions such as wireless calls and music playback. There are many types of Bluetooth headsets. Among them, ear-clamping headsets are accepted by the majority of consumers due to their good firmness and comfort. According to the sound propagation principle, ear-clamping Bluetooth headsets are divided into bone conduction type and air conduction type. Since some people feel ear itching when using bone conduction ear-clamping Bluetooth headsets, many people choose to use air conduction ear-clamping Bluetooth headsets.

[0003] The air conduction ear-clamping Bluetooth headset can be directly clipped on the auricle through an elastic ear hook, and the sound-emitting unit is an open design without the need to enter the ear. Therefore, it will not cause pressure on the ear canal and reduce the discomfort caused by long-term wearing. This design is suitable for long-term wearing. However, the open design of the ear-clamping headset allows users to hear music and external sounds at the same time. Therefore, when wearing a headset to listen to music, it is easy to be interfered by environmental sounds, affecting the listening effect. To solve the above problems, in the prior art, generally, the volume is increased to improve the listening effect. However, when a person uses it in a noisy environment for a long time, it is necessary to increase the volume for a long time to listen. And long-term high-volume listening will have an adverse effect on the user's hearing, resulting in a decline in the user's hearing.

[0004] Therefore, a stretchable ear-clamping Bluetooth headset is proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide a stretchable ear-clamping Bluetooth headset, which solves the problem that when used in a noisy environment, the ear-clamping Bluetooth headset is easily interfered by environmental sounds, and the user's hearing is damaged due to the need to increase the volume to ensure the listening effect. By setting a movable main ear shell, the main ear shell is close to the ear canal, thereby reducing the degree of interference of environmental sounds. And during the process of the main ear shell approaching the ear canal, a vacuum space is formed in the main ear shell to wrap the sound-emitting unit, thereby achieving the purpose of sound insulation and effectively ensuring the listening effect of the headset.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] A stretchable ear-hook type Bluetooth headset, placed in an earphone compartment, includes an ear-hook, a sub-ear shell, a battery, an adjustment component, a rubber sleeve, an extension component, a main ear shell, a sound-emitting unit and a sealing film. The sub-ear shell is connected to the lower left end of the ear-hook. The battery is connected to the inner cavity of the sub-ear shell. The adjustment component is connected to the ear-hook. The rubber sleeve is sleeved on the outer peripheral surface of the ear-hook. The extension component is connected to the lower right end of the ear-hook. The main ear shell is connected to the lower end of the extension component. The sound-emitting unit is connected to the inner cavity of the main ear shell. The sealing film is connected between the sound-emitting unit and the main ear shell. A sealing cavity is formed between the ear-hook and the rubber sleeve. When the sealing cavity is pressurized, the extension component drives the main ear shell to move towards the side away from the ear-hook, and the moving distance of the main ear shell is proportional to the fitting distance between the rubber sleeve and the ear-hook. When the main ear shell moves, the extension component drives the sealing film to approach the sound-emitting unit. When placed in the earphone compartment, the adjustment component generates extra space to reduce the pressure of the sealing cavity, so that the extension component drives the main ear shell to reset.

[0008] Through the above solution, by applying pressure to the sealing cavity, the sealing cavity applies pressure to the extension component, and then the position of the main ear shell can be adjusted through the extension component, so that the sound-emitting unit is close to the ear canal, achieving the purpose of adjusting the sound received by the ear canal without changing the volume. At the same time, when the earphone is placed in the earphone compartment, the adjustment component moves to generate a space communicating with the sealing cavity, and then without changing the bonding area between the rubber sleeve and the ear-hook, the air pressure of the sealing cavity on the extension component is reduced, so that the extension component drives the main ear shell to reset. Thus, when the earphone is taken out next time, the main ear shell can continue to be used along the set position during the previous use, which is convenient for use.

[0009] Preferably, hook surfaces of Velcro are connected to the front and rear sides of the left side of the ear-hook surface, and a loop surface of Velcro is connected to the left side of the inner wall of the rubber sleeve, and the positions of the hook surface of Velcro and the loop surface of Velcro correspond to each other.

[0010] Through the above solution, the bonding of the hook surface of Velcro and the loop surface of Velcro can adjust the volume of the sealing cavity, and then change the pressure of the gas in the inner cavity of the sealing cavity on the extension component, achieving the purpose of adjusting the extended length of the extension component and then adjusting the extended length of the main ear shell.

[0011] Preferably, the adjustment component includes a slider, a push block and a highly elastic film. The slider is connected to the left side of the ear-hook. The push block is connected to the middle of the slider. The highly elastic film is connected to the left side of the rubber sleeve, and both the slider and the push block are connected to the highly elastic film.

[0012] Through the above solution, both the slider and the push block are connected to the highly elastic film. After the slider and the push block are displaced, the highly elastic film can drive the slider and the push block to reset.

[0013] Preferably, the top of the push block is arc-shaped, and the distance value from the top of the push block to the ear-hook surface gradually increases from right to left.

[0014] Through the above solution, the spacing value from the top of the pushing block to the surface of the earhook gradually increases from right to left. Thus, when pushing the pushing block, the pushing block gradually contacts the inner wall of the rubber sleeve, and as the pushing distance increases, the pushing area on the inner wall of the rubber sleeve gradually increases. Therefore, when the hook surface and the loop surface of the magic tape are adhered, the separation between the hook surface and the loop surface of the magic tape is gradually pushed, which facilitates the separation between the hook surface and the loop surface of the magic tape.

[0015] Preferably, the extension component includes a corrugated sleeve, an inner rod, an outer rod, and a bottom plate. The corrugated sleeve is connected to the right lower end of the rubber sleeve. The inner rod is connected to the right lower end of the earhook. The outer rod is slidably connected to the outer surface of the inner rod. The bottom plate is connected to the lower end of the outer rod. The lower end of the corrugated sleeve is connected to the bottom plate. A chamfer is provided on the lower side of the inner wall of the bottom plate.

[0016] Through the above solution, a chamfer is provided on the lower side of the inner wall of the bottom plate. Thus, when the inner rod and the outer rod undergo relative displacement to pull the sealing film, the scraping of the bottom plate on the sealing film is reduced.

[0017] Preferably, the height value of the inner rod is greater than the height value of the outer rod, and the lower end of the inner rod is connected to the sealing film.

[0018] Through the above solution, the height value of the inner rod is greater than the height value of the outer rod. Thus, when the inner rod and the outer rod are in the initial state, the inner rod does not pull the sealing film.

[0019] Preferably, the main ear shell includes an upper shell, a lower shell, and an isolation shell. The upper shell is connected to the outer periphery of the bottom plate. The upper shell, the lower shell, and the isolation shell are connected in sequence from top to bottom. The top surface of the isolation shell protrudes upward. The lower end surface of the sealing film is connected to the protruding surface of the isolation shell. The upper shell and the lower shell are connected by hot melt adhesive.

[0020] Through the above solution, the upper shell and the lower shell are connected by hot melt adhesive. Thus, it is convenient to install the sealing film, and at the same time, the hot melt adhesive has a good sealing effect after solidification.

[0021] Preferably, the thickness value of the sealing film gradually increases from top to bottom, and a partition chamber is formed between the sealing film and the upper shell and the lower shell.

[0022] Through the above solution, the thickness value of the sealing film gradually increases from top to bottom. Thus, the elastic modulus of the sealing film gradually increases from top to bottom, which facilitates the deformation of the sealing film. Since the thickness value of the upper side of the sealing film is smaller, it is convenient for the sealing film to contract into the inner cavity of the outer rod following the inner rod.

[0023] Preferably, the partition chamber is subjected to vacuum treatment, and there is a gap between the sealing film and the sounding unit.

[0024] Through the above solution, the partition chamber is evacuated. Through the sound insulation effect of the vacuum, the sound leakage phenomenon of the sound generating unit of the in-ear Bluetooth headset can be effectively reduced. At the same time, the sealing film can effectively wrap the sound generating unit, which can effectively prevent water. There is a gap between the sealing film and the sound generating unit, which facilitates the deformation adjustment of the sealing film when the sealing film is pulled.

[0025] Preferably, two brackets are connected to the inner cavity of the earphone compartment. A magnet is connected to the top of the bracket, and the position of the magnet corresponds to the position of the slider.

[0026] Through the above solution, the position of the magnet corresponds to the position of the slider. Then, after the earphone is placed in the earphone compartment, due to the attraction of the magnet to the slider, the slider moves, generating a certain space. The air flow in the sealing cavity can flow to the space generated by the slider, causing the extension component to drive the main ear shell to reset. At the same time, the bonding area between the ear hook and the rubber sleeve 6 is maintained. Then, when the earphone is taken out again, the extension length specified by the extension component for the main ear shell can be maintained, achieving the purpose of convenient use.

[0027] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0028] 1. The present invention solves the problem that when used in a noisy environment, the in-ear Bluetooth headset is easily interfered by ambient sound, and in order to ensure the listening effect, the volume needs to be increased, which may cause damage to the user's hearing. By setting an extension component, when the earphone is worn and used, by pressing the rubber sleeve, the hook surface of the magic tape is bonded to the thorn surface of the magic tape, so that the gas in the sealing cavity presses on the bottom plate, causing the bottom plate to drive the main ear shell to slide, and the main ear shell drives the sound generating unit to approach the ear canal, achieving the purpose of convenient listening. At the same time, the main ear shell drives the sound generating unit to approach the ear canal, which increases the amount of sound received by the ear canal from the sound generating unit, achieving the purpose of ensuring the listening effect.

[0029] 2. By setting a sealing film, a vacuum-like partition chamber is formed between the sealing film and the main ear shell. When the main ear shell is not extended, the partition chamber can isolate the sound generating unit, avoiding the sound leakage of the sound generating unit and effectively ensuring the use experience of the earphone. At the same time, after the main ear shell is extended, the main ear shell approaches the ear canal. At this time, by pulling the sealing film by the extension component, the volume of the partition chamber is increased, effectively blocking the transmission of ambient sound from the main ear shell. And the main ear shell approaching the ear canal reduces the space for ambient sound to be transmitted to the ear canal. By closing the main ear shell with a vacuum space, the purpose of improving the listening effect is achieved.

[0030] 3. By setting the adjustment component, when the earphone is stored in the earphone compartment, the attraction of the magnet to the slider causes the slider to move, thereby creating extra space in the sealed cavity. The pressure of the gas on the extension component decreases, causing the extension component to drive the main ear shell to reset, thus achieving the purpose of facilitating storage. At the same time, the hook surface of the magic tape and the loop surface of the magic tape maintain the bonding area. Therefore, when the earphone is taken out, the reset of the slider causes the gas in the sealed cavity to exert pressure on the extension component, causing the extension component to drive the main ear shell to return to the position of the previous use, thus achieving the purpose of facilitating use. Brief Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the whole invention;

[0032] Figure 2 It is a schematic structural diagram of the ear hook and rubber sleeve parts of the invention;

[0033] Figure 3 It is a schematic structural diagram of the adjustment component part of the invention;

[0034] Figure 4 It is a schematic structural diagram of the extension component part of the invention;

[0035] Figure 5 It is a schematic structural diagram of the main ear shell part of the invention;

[0036] Figure 6 It is a schematic structural diagram of the earphone compartment part of the invention;

[0037] Figure 7 It is a schematic diagram of the initial state of the invention;

[0038] Figure 8 It is a schematic diagram of the turntable after extension of the invention;

[0039] Figure 9 It is a schematic diagram of the state of contraction after storage of the invention.

[0040] In the figure: 1. Earphone compartment; 101. Bracket; 102. Magnet; 2. Ear hook; 201. Hook surface of the magic tape; 3. Sub-ear shell; 4. Battery; 5. Adjustment component; 501. Slider; 502. Push block; 503. High-elastic film; 6. Rubber sleeve; 601. Loop surface of the magic tape; 7. Extension component; 701. Corrugated sleeve; 702. Inner rod; 703. Outer rod; 704. Bottom plate; 8. Main ear shell; 801. Upper shell; 802. Lower shell; 803. Isolation shell; 9. Sound emitting unit; 10. Sealing film; 11. Sealed cavity; 12. Partition chamber. Detailed Description of the Invention

[0041] The following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings of the embodiments of the present invention, making its working state and structural features more detailed. Obviously, the described embodiments are only partial embodiments of the present invention, not complete embodiments. Based on the embodiments of the present invention, other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1 to 9 , the present invention provides a stretchable clip-on Bluetooth headset, and the technical solution is as follows:

[0043] Specifically, please refer to Figures 1 to 9 , a stretchable clip-on Bluetooth headset is placed in the earphone compartment 1. Among them, two stretchable clip-on Bluetooth headsets form a pair and are jointly placed in the same earphone compartment 1. The inner cavity of the earphone compartment 1 is connected with two brackets 101. A magnet 102 is connected to the top of the bracket 101. The stretchable clip-on Bluetooth headset includes an ear hook 2, a sub-ear shell 3, a battery 4, an adjustment component 5, a rubber sleeve 6, an extension component 7, a main ear shell 8, a sound-emitting unit 9, and a sealing film 10. The sub-ear shell 3 is connected to the lower left end of the ear hook 2, and the sub-ear shell 3 is fixedly connected to the ear hook 2. The battery 4 is connected to the inner cavity of the sub-ear shell 3, and the battery 4 is fixedly connected to the sub-ear shell 3. The adjustment component 5 is connected to the ear hook 2. The rubber sleeve 6 is sleeved on the outer peripheral surface of the ear hook 2. The extension component 7 is connected to the lower right end of the ear hook 2. The main ear shell 8 is connected to the lower end of the extension component 7. The sound-emitting unit 9 is connected to the inner cavity of the main ear shell 8. The sealing film 10 is connected between the sound-emitting unit 9 and the main ear shell 8. A sealing cavity 11 is formed between the ear hook 2 and the rubber sleeve 6. When the sealing cavity 11 is pressurized, the extension component 7 drives the main ear shell 8 to move towards the side away from the ear hook 2, and the moving distance of the main ear shell 8 is proportional to the fitting distance between the rubber sleeve 6 and the ear hook 2. When the main ear shell 8 moves, the extension component 7 drives the sealing film 10 to approach the sound-emitting unit 9. When placed in the earphone compartment 1, the adjustment component 5 generates extra space to reduce the pressure in the sealing cavity 11, so that the extension component 7 drives the main ear shell 8 to reset.

[0044] By setting the sealed cavity 11, when adjusting the distance from the sound unit 9 to the ear canal, the sealed cavity 11 is first pressurized to reduce the volume of the sealed cavity 11, but the volume of the gas in the sealed cavity 11 remains unchanged. When the volume of the sealed cavity 11 is reduced, the pressure of the gas increases, and the gas pressurizes the extension component 7, thereby expanding the volume of the extension component 7. When the extension component 7 expands, it drives the main ear shell 8 close to the ear canal, thereby bringing the sound unit 9 close to the ear canal, thereby achieving the purpose of adjusting the size of the sound received by the ear canal without changing the volume. At the same time, the main ear shell 8 close to the ear canal can also reduce the amount of ambient sound received by the ear canal, thereby reducing the volume of the sound received by the ear canal. The practical effect of the earphone is improved. When the earphone is stored, the earphone is placed in the earphone cabin 1, and the adjustment component 5 moves to generate a space connected to the sealed cavity 11, thereby reducing the pressure of the sealed cavity 11 on the extension component 7 without changing the bonding area between the rubber sleeve 6 and the ear hook 2, so that the extension component 7 drives the main ear shell 8 to reset, and then after the earphone is taken out, the adjustment component 5 is reset to separate the space, and the extension component 7 will adjust the position of the main ear shell 8 along the last pressure, so that when the earphone is taken out next time, the main ear shell 8 can continue to be used along the set position when it was used last time, thereby achieving the purpose of convenient use.

[0045] As an embodiment of the present invention, refer to Figure 2 , Figure 7 , Figure 8 and Figure 9 The front and rear sides of the left side of the surface of the ear hook 2 are fixedly connected with Velcro thorn surfaces 201, and the Velcro thorn surfaces 201 are located at the front and rear sides of the adjustment component 5, and the number of Velcro thorn surfaces 201 is two. The left side of the inner wall of the rubber sleeve 6 is fixedly connected with Velcro fur surface 601, and the number of Velcro fur surface 601 is one. The Velcro thorn surface 201 corresponds to the position of the Velcro fur surface 601, and the volume of the Velcro fur surface 601 covers the two Velcro thorn surfaces 201, and then when pressure is applied to the rubber sleeve 6 so that the rubber sleeve 6 fits on the surface of the ear hook 2, the Velcro thorn surface 201 can be stably bonded to the Velcro fur surface 601, and by bonding the Velcro thorn surface 201 and the Velcro fur surface 601, the volume of the sealing cavity 11 can be reduced, and then the gas in the sealing cavity 11 presses the extension component 7, so that the extension component 7 drives the main ear shell 8 close to the ear canal.

[0046] By setting the Velcro thorn surface 201 and the Velcro fleece surface 601, the Velcro thorn surface 201 and the Velcro fleece surface 601 are respectively set on the left side of the ear hook 2 and the rubber sleeve 6. When in use, pressure is applied from the end of the rubber sleeve 6 close to the auxiliary ear shell 3 toward the end close to the main ear shell 8, thereby achieving the purpose of gradually closing the sealing cavity 11.

[0047] As an embodiment of the present invention, refer to Figure 3 , Figure 7 , Figure 8and Figure 9 The adjusting assembly 5 includes a slider 501, a push block 502 and a high-elasticity film 503. The slider 501 is connected to the left side of the earhook 2. The position of the magnet 102 corresponds to the position of the slider 501. The slider 501 is slidably connected to the earhook 2. The push block 502 is connected to the middle of the slider 501. The push block 502 is slidably connected to the slider 501. The high-elasticity film 503 is connected to the left side of the rubber sleeve 6. The high-elasticity film 503 has elasticity. Both the slider 501 and the push block 502 are connected to the high-elasticity film 503. Further, whether it is the movement of the slider 501 or the movement of the push block 502, the high-elasticity film 503 can drive it to reset. At the same time, the area of the hook surface 601 of the magic tape is large. When pushing the push block 502 to press the rubber pad, the push block 502 contacts the hook surface 601 of the magic tape, which can play a buffering role. The top of the push block 502 is arc-shaped. The distance value from the top of the push block 502 to the surface of the earhook 2 gradually increases from right to left. When pushing the push block 502, the push block 502 gradually contacts the hook surface 601 of the magic tape from right to left. Further, the separation of the hook surface 601 of the magic tape and the loop surface 201 of the magic tape is gradually carried out from right to left. Since the adhesion between the hook surface 601 of the magic tape and the loop surface 201 of the magic tape at the right end is less, starting from the right end to separate the loop surface 201 of the magic tape and the hook surface 601 of the magic tape is convenient and fast, and the required pulling is small.

[0048] By setting the adjusting assembly 5, the adhesion length between the loop surface 201 of the magic tape and the hook surface 601 of the magic tape can be ensured. When placed in the earphone compartment 1, the magnet 102 generates a suction force on the slider 501, causing the slider 501 to displace. The displacement of the slider 501 creates space, thereby reducing the pressure in the sealing cavity 11. The reduction of the pressure causes the extension assembly 7 to drive the main ear shell 8 to reset, achieving the purpose of facilitating storage. When taking out the earphone, the magnet 102 is separated from the slider 501, and the high-elasticity film 503 drives the slider 501 to reset, thereby restoring the pressure in the sealing cavity 11. The extension assembly 7 pushes the main ear shell 8 to reset, achieving the purpose of facilitating use.

[0049] As an implementation manner of the present invention, referring to Figure 4 、 Figure 7 、 Figure 8 and Figure 9, the extension assembly 7 includes a corrugated sleeve 701, an inner rod 702, an outer rod 703 and a bottom plate 704. The corrugated sleeve 701 is connected to the right lower end of the rubber sleeve 6 and is fixedly connected to the rubber sleeve 6. The inner rod 702 is connected to the right lower end of the earhook 2 and is fixedly connected to the earhook 2. The outer rod 703 is slidably connected to the outer surface of the inner rod 702. The bottom plate 704 is connected to the lower end of the outer rod 703. The lower end of the corrugated sleeve 701 is connected to the bottom plate 704. The inner cavity of the corrugated sleeve 701 communicates with the sealing cavity 11. Further, when the pressure in the sealing cavity 11 increases, the pressure acts on the bottom plate 704 to push the outer rod 703 to slide. At this time, the corrugated sleeve 701 expands. The height value of the inner rod 702 is greater than the height value of the outer rod 703. Further, when the upper end of the outer rod 703 fits with the earhook 2, the lower end of the outer rod 703 extends into the main ear shell 8. The lower end of the inner rod 702 is connected to the sealing film 10. The lower side of the inner wall of the bottom plate 704 is provided with a chamfer.

[0050] By providing the extension assembly 7, when the pressure in the sealing cavity 11 increases, the bottom plate 704 moves toward the side away from the earhook 2 and is connected to the main ear shell 8, thereby driving the main ear shell 8 to move, and thus achieving the purpose of adjusting the position of the sound generating unit 9 to the ear canal. At the same time, during the stable movement of the outer rod 703, the bottom plate 704 is driven to sleeve on the outer peripheral surface of the sealing film 10, so that the sealing film 10 contracts into the inner cavity of the outer rod 703. Further, the sealing film 10 moves closer to the sound generating unit 9.

[0051] As an implementation manner of the present invention, refer to Figure 5 , Figure 6 , Figure 7 , Figure 8 and Figure 9, the main ear shell 8 includes an upper shell 801, a lower shell 802 and a partition shell 803. The upper shell 801 is connected to the outer periphery of the bottom plate 704, and the upper shell 801 is fixedly connected to the bottom plate 704. The upper shell 801, the lower shell 802 and the partition shell 803 are connected in sequence from top to bottom, and the lower shell 802 is fixedly connected to the partition shell 803. The top surface of the partition shell 803 protrudes upward, and the lower end surface of the sealing film 10 is connected to the protruding surface of the partition shell 803. The upper shell 801 and the lower shell 802 are connected by hot melt adhesive, effectively ensuring the sealing effect of the partition chamber 12. Through the vacuum sealing of the partition chamber 12, when the main ear shell 8 is close to the ear canal, effective sound insulation can be achieved. The thickness value of the sealing film 10 gradually increases from top to bottom. The sealing film 10 and the upper shell 801 and the lower shell 802 form a partition chamber 12, and the lower end surface of the sealing film 10 is connected to the protruding surface of the partition shell 803. Thus, the partition chamber 12 effectively wraps the sound emitting unit 9. The partition chamber 12 is subjected to vacuum treatment. In the initial state, the partition chamber 12 can play a certain partition role for the sound emitting unit 9. When the volume of the sound emitting unit 9 is increased, the phenomenon of sound leakage can be effectively reduced. There is a gap between the sealing film 10 and the sound emitting unit 9. When the sealing film 10 is pulled, the sealing film 10 can be displaced, thereby expanding the volume of the partition chamber 12 to improve the sound insulation effect.

[0052] By providing the sealing film 10, a partition chamber 12 is formed between the sealing film 10 and the main ear shell 8, and the partition chamber 12 is in a vacuum state. Through the sound insulation effect of the vacuum, when the sound emitting unit 9 emits sound, the phenomenon of sound leakage of the open type Bluetooth headset can be effectively reduced. At the same time, when the main ear shell 8 approaches the ear canal, the volume of the partition chamber 12 is expanded, and the sound insulation effect of the partition chamber 12 is improved, thereby reducing the interference of the environment to the ear canal and improving the use experience of the headset.

[0053] During use, the elastic earhook 2 is broken open to increase the distance between the main ear shell 8 and the auxiliary ear shell 3. The main ear shell 8 is oriented towards the ear canal, and the auxiliary ear shell 3 is oriented towards the back of the ear. Then the earhook 2 is released. At this time, the elastic reset of the earhook 2 drives the main ear shell 8 and the auxiliary ear shell 3 to clamp on the ear. The sound emitted by the sound emitting unit 9 is received by the human ear. When the ambient sound is relatively loud, by changing the position of the main ear shell 8 relative to the ear canal, the amount of sound received by the ear canal from the sound emitting unit 9 is increased. At the same time, when the main ear shell 8 approaches the ear canal, the gap between the ear canal and the main ear shell 8 can be reduced, thereby reducing the amount of ambient sound entering the ear. By hermetically setting the sealing cavity 11 between the earhook 2 and the rubber sleeve 6, when it is necessary to adjust the position of the main ear shell 8, by applying pressure to the sealing cavity 11, the sealing cavity 11 is made to push the extension assembly 7, thereby achieving the purpose of adjusting the position of the main ear shell 8. Specifically, the sealing cavity 11 is formed between the earhook 2 and the rubber sleeve 6, and the volume of the gas in the sealing cavity 11 is fixed. When adjustment is required, by squeezing the rubber sleeve 6 near the end of the auxiliary ear shell 3, the hook surface 601 of the magic tape is adhered to the loop surface 201 of the magic tape. At this time, the volume of the sealing cavity 11 decreases, and the gas in the sealing cavity 11 is squeezed and flows towards one end of the extension assembly 7. The gas presses against the bottom plate 704 and pushes the bottom plate 704 to move towards the side away from the earhook 2. The movement of the bottom plate 704 drives the movement of the main ear shell 8, and the main ear shell 8 moves towards the ear canal, thereby realizing that the sound emitting unit 9 approaches the ear canal, facilitating the ear to hear clearly;

[0054] To further reduce the influence of ambient sound, in this solution, the sound emitting unit 9 is wrapped by a partition chamber 12 that forms a vacuum. During the process of the main ear shell 8 approaching the ear canal, the thickness of the partition chamber 12 is increased. Thus, when the main ear shell 8 fits with the ear canal, the vacuum partition chamber 12 can achieve the purpose of blocking sound, thereby reducing the ambient sound entering the ear. Specifically, by setting the inner rod 702 with a fixed position, when the outer rod 703 slides, the outer rod 703 will push the bottom plate 704 to squeeze the sealing film 10, causing the sealing film 10 to move closer to the middle, thereby achieving the purpose of expanding the partition chamber 12. As the main ear shell 8 with sound insulation effect approaches the ear canal, the ambient sound entering the ear canal is reduced, achieving the effect of sound insulation and noise reduction;

[0055] For the convenience of reuse after taking out, by setting the adjusting component 5, after the earphone is placed in the earphone compartment 1, the adjusting component 5 can create additional space, thereby reducing the air pressure in the sealing cavity 11 and causing the extension component 7 to contract. Specifically, when the earphone is placed in the earphone compartment 1, the magnet 102 generates a suction force on the slider 501, causing the slider 501 to move, and the high-elastic film 503 deforms. When the slider 501 moves, a gap is generated between the slider 501 and the ear hook 2, and the gas in the sealing cavity 11 flows into the gap between the slider 501 and the ear hook 2, thereby reducing the pressure on the extension component 7. At this time, the corrugated sleeve 701 drives the main ear shell 8 to reset through the bottom plate 704. At this time, the volume of the earphone decreases, making it easier to be stored in the earphone compartment 1. At the same time, the hook surface 201 of the magic tape remains adhered to the loop surface 601 of the magic tape. Therefore, after the earphone is taken out, the adjusting component 5 resets, causing the gap between the slider 501 and the ear hook 2 to disappear, and the air pressure in the sealing cavity 11 pushes the extension component 7 at the set intensity of the previous use, so that the main ear shell 8 can extend along the previous use position;

[0056] When readjustment is needed, by pressing the push block 502, the push block 502 will squeeze the loop surface 601 of the magic tape, causing the loop surface 601 of the magic tape to separate from the hook surface 201 of the magic tape. At this time, the air pressure in the sealing cavity 11 is restored, and the pressure on the extension component 7 is reduced. At this time, the corrugated sleeve 701 drives the main ear shell 8 to reset through the bottom plate 704.

[0057] Although the embodiments of the present invention have been described, for those of ordinary skill in the art, under the understanding of the principles and spirit of the present invention, the embodiments can be changed and modified to obtain other effects. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stretchable clip-on Bluetooth headset, placed in an earphone compartment (1), characterized in that: The invention comprises an ear hook (2), a secondary ear shell (3), a battery (4), an adjustment component (5), a rubber sleeve (6), an extension component (7), a main ear shell (8), a sound unit (9) and a sealing film (10), wherein the secondary ear shell (3) is connected to the lower left end of the ear hook (2), the battery (4) is connected to the inner cavity of the secondary ear shell (3), the adjustment component (5) is connected to the ear hook (2), the rubber sleeve (6) is sleeved on the outer peripheral surface of the ear hook (2), the extension component (7) is connected to the lower right end of the ear hook (2), the main ear shell (8) is connected to the lower end of the extension component (7), the sound unit (9) is connected to the inner cavity of the main ear shell (8), and the sealing film (10) is connected between the sound unit (9) and the main ear shell (8), and a sealed cavity (11) is formed between the ear hook (2) and the rubber sleeve (6). When the sealed cavity (11) is pressurized, the extension component (7) drives the main ear shell (8) to move toward the side away from the ear hook (2), and the moving distance of the main ear shell (8) is proportional to the fitting distance between the rubber sleeve (6) and the ear hook (2). When the main ear shell (8) moves, the extension component (7) drives the sealing membrane (10) to move closer to the sound unit (9). When the main ear shell (8) is placed in the earphone cabin (1), the adjustment component (5) generates additional space to reduce the pressure of the sealed cavity (11), so that the extension component (7) drives the main ear shell (8) to return to its original position.

2. The stretchable clip-on Bluetooth headset according to claim 1, characterized in that: The front and rear sides of the left side of the surface of the ear hook (2) are both connected to a Velcro thorn surface (201), and the left side of the inner wall of the rubber sleeve (6) is connected to a Velcro fleece surface (601), and the Velcro thorn surface (201) and the Velcro fleece surface (601) are located in corresponding positions.

3. The stretchable clip-on Bluetooth headset according to claim 2, characterized in that: The adjustment component (5) comprises a slider (501), a push block (502) and a high elastic membrane (503); the slider (501) is connected to the left side of the ear hook (2); the push block (502) is connected to the middle of the slider (501); the high elastic membrane (503) is connected to the left side of the rubber sleeve (6); and the slider (501) and the push block (502) are both connected to the high elastic membrane (503).

4. The stretchable clip-on Bluetooth headset according to claim 3, characterized in that: The top of the push block (502) is arc-shaped, and the distance between the top of the push block (502) and the surface of the ear hook (2) gradually increases from right to left.

5. The stretchable clip-on Bluetooth headset according to claim 3, characterized in that: The extension assembly (7) comprises a corrugated sleeve (701), an inner rod (702), an outer rod (703) and a bottom plate (704); the corrugated sleeve (701) is connected to the right lower end of the rubber sleeve (6); the inner rod (702) is connected to the right lower end of the ear hook (2); the outer rod (703) is slidably connected to the outer surface of the inner rod (702); the bottom plate (704) is connected to the lower end of the outer rod (703); the lower end of the corrugated sleeve (701) is connected to the bottom plate (704); and the lower side of the inner wall of the bottom plate (704) is provided with a chamfer.

6. The stretchable clip-on Bluetooth headset according to claim 5, characterized in that: The height of the inner rod (702) is greater than the height of the outer rod (703), and the lower end of the inner rod (702) is connected to the sealing membrane (10).

7. The stretchable clip-on Bluetooth headset according to claim 6, characterized in that: The main ear shell (8) comprises an upper shell (801), a lower shell (802) and an isolation shell (803); the upper shell (801) is connected to the outer periphery of the bottom plate (704); the upper shell (801), the lower shell (802) and the isolation shell (803) are connected in sequence from top to bottom; the top surface of the isolation shell (803) is convex upward; the lower end surface of the sealing membrane (10) is connected to the convex surface of the isolation shell (803); and the upper shell (801) and the lower shell (802) are connected by hot melt adhesive.

8. The stretchable clip-on Bluetooth headset according to claim 7, characterized in that: The thickness of the sealing film (10) gradually increases from top to bottom, and a partition chamber (12) is formed between the sealing film (10) and the upper shell (801) and the lower shell (802).

9. The stretchable clip-on Bluetooth headset according to claim 8, characterized in that: The partition chamber (12) is subjected to a vacuum treatment, and a gap exists between the sealing film (10) and the sound producing unit (9).

10. The stretchable clip-on Bluetooth headset according to claim 3, characterized in that: The inner cavity of the earphone chamber (1) is connected to two brackets (101), the top of the bracket (101) is connected to a magnet (102), and the position of the magnet (102) corresponds to the position of the slider (501).

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