Adjustable headphones

Abstract

The present invention discloses an adjustable earphone comprising a frame, an annular sleeve, a rotating ring, and a plurality of adjustment blocks. The annular sleeve is fixed to the frame, and the plurality of adjustment blocks are distributed around the center of the annular sleeve. The adjustment blocks are radially movably disposed on the annular sleeve. The rotating ring is rotatably disposed on the annular sleeve and located inside the adjustment blocks. The inner sidewall of the adjustment block is provided with an abutment portion, and the outer sidewall of the rotating ring is provided with a driving portion. When the rotating ring rotates, the driving portion drives the abutment portion, thereby making the adjustment blocks radially adjustable. The earphone of the present invention can be radially adjusted to accommodate different ear canal sizes, and adjustment is convenient.

Description

Technical Field

[0001] The present invention relates to an earphone, in particular to an adjustable earphone which can be radially adjusted to be suitable for different ear canal sizes and is easy to adjust. Background Art

[0002] Headphones are small audio devices that allow users to listen to audio or make calls simply by hiding this lightweight device next to their ears, without having to directly use the speakers of communication devices (mobile phones, computers, etc.). Existing headphones generally include structures such as a frame, a sound tube, and an ear cap. When wearing headphones, the sound tube and the ear cap extend into the interior of the ear canal, while the frame is outside the ear canal. The size of the sound tube is fixed. Therefore, when wearing existing headphones, the user squeezes the headphones into the ear canal with the pressure, and the friction generated by squeezing with the ear canal prevents the headphones from falling off. However, due to the large number of people who use headphones, the ear canals of different individuals are of different sizes. When wearing the same type of headphones, it is easy for the headphones to not fit properly, causing ear canal inflammation, and the headphones are more likely to fall off or not fit into the ears. Summary of the Invention

[0003] The object of the present invention is to provide an adjustable earphone which can be radially adjusted to suit different ear canal sizes and is easy to adjust.

[0004] In order to achieve the above-mentioned purpose, the adjustable earphones provided by the present invention include a frame, an annular sleeve, a rotating ring and a plurality of adjustment blocks, the annular sleeve is fixed to the frame, the plurality of adjustment blocks are distributed around the center of the annular sleeve, and the adjustment blocks are radially movably arranged on the annular sleeve; the rotating ring is rotatably arranged on the annular sleeve and is located on the inner side of the adjustment block; the inner side wall of the adjustment block is provided with an abutment portion, and the outer side wall of the rotating ring is provided with a driving portion, so that the abutment portion is driven by the driving portion when the rotating ring rotates, so that the adjustment block is radially adjustable.

[0005] Compared with the prior art, the present invention provides a plurality of adjustment blocks on the annular sleeve, and makes the adjustment blocks radially movable, distributes the adjustment blocks around the center of the annular sleeve, and provides a rotating ring inside the adjustment block, with a driving portion provided on the outer wall of the rotating ring and an abutting portion provided on the inner wall of the adjustment block. Therefore, by rotating the rotating ring, the abutting portion can be driven by the driving portion, and the adjustment block can be driven to move radially, thereby achieving the purpose of adjusting the diameter of the circular structure formed by the adjustment block. Therefore, when the earphone is placed in the ear canal, the diameter of the circular structure can be adjusted so that the adjustment block can contact the inner wall of the ear canal of different sizes, making it more comfortable to wear and suitable for ear canals of different sizes. In addition, adjustment can be made by simply rotating the rotating ring, which is very simple and convenient to operate.

[0006] Preferably, one of the two opposing sides of the driving portion and the abutting portion is provided with a driving inclined surface, and the other of the two opposing sides of the driving portion and the abutting portion is provided with a matching inclined surface that can slidably contact the driving inclined surface, so as to drive the adjustment block to move when the two abut. The provision of the driving inclined surface makes it easier for the driving portion to push the adjustment block to move, ensuring smooth and stable movement.

[0007] Specifically, the driving inclined surface is provided with a plurality of positioning recesses, and the abutting portion is provided with a positioning protrusion, which selectively engages with the positioning recesses. By providing the positioning recesses and the positioning protrusions, the driving portion and the abutting portion can be mutually positioned after mutual adjustment, thereby allowing the adjustment block to be positioned in a certain position, preventing the adjustment block from accidentally resetting and affecting the wearing of the earphones.

[0008] Preferably, the adjustable earphone further comprises a sound tube, one end of which is connected to the interior of the frame, and the other end of which is located in the rotating ring. The sound emitted from the earphone can be transmitted to the user's ear canal through the sound tube.

[0009] Specifically, the sound tube is connected to the rotating ring. Since the rotating ring is small in size and located close to the frame, it is cumbersome to operate. By connecting the sound tube to the rotating ring, the sound tube can be driven to rotate, thereby driving the rotating ring to rotate, thereby improving the convenience of operation.

[0010] Specifically, the inner wall of the rotating ring is provided with first gear teeth, and the outer wall of the sound tube is provided with second gear teeth, which mesh with the first gear teeth. Utilizing the first and second gear teeth allows the rotating ring and the sound tube to be connected and rotate synchronously, while also making assembly of the rotating ring and the sound tube more convenient and quick.

[0011] Specifically, the adjustable earphones further include an ear cap, which is disposed at an end of the sound tube away from the frame. The ear cap can contact the sidewall of the ear canal, thereby stabilizing the sound tube in the ear canal and improving the stability and comfort of wearing the earphones.

[0012] Preferably, the adjustable earphones further include an FPC detection module, located on the outer wall of the adjustment block or on the inner surface of the frame near the ear canal. By installing the FPC detection module on the outer wall of the adjustment block, the earphone wearing condition can be detected using the principle of inductive capacitance. This conveniently and effectively detects whether the earphones are worn in the user's ear canal, thereby controlling whether the earphones play audio, saving power and improving user convenience.

[0013] Preferably, the adjustable earphone further comprises an elastic member disposed between the annular sleeve and the adjustment block to provide an elastic force to cause the adjustment block to slide toward the center. The elastic member can be used to drive the adjustment block toward the center when the driving portion moves away from the abutment portion, thereby reducing the diameter of the circular structure. This can further reduce the diameter of the earphone portion extending into the ear canal to accommodate smaller ear canals and improve its adaptability.

[0014] Preferably, a flexible ring is provided on the outer side of the adjustment block. When the earphone is worn, the flexible ring can contact the side wall of the user's ear canal, which not only makes the wearer more comfortable, but also allows earwax secreted in the ear canal to adhere to the flexible ring. Therefore, when the earphone is removed, the flexible ring can be removed for cleaning, thereby improving the cleanliness of the earphone and the ear canal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the adjustable earphone of the present invention.

[0016] Figure 2 It is a diagram of the internal structure of the adjustable earphone of the present invention.

[0017] Figure 3 This is a front view of the internal structure of the adjustable earphone of the present invention.

[0018] Figure 4 yes Figure 3 Enlarged view of part A.

[0019] Figure 5 This is a diagram showing an enlarged state of the adjustment block of the adjustable earphone of the present invention. DETAILED DESCRIPTION

[0020] In order to explain the technical content, structural features and achieved effects of the present invention in detail, the following is a detailed description in conjunction with the embodiments and the accompanying drawings.

[0021] like Figures 1 to 4As shown, the adjustable earphone 100 of the present invention comprises a frame 1, an annular sleeve 2, a rotating ring 3, a plurality of adjustment blocks 4, and elastic members 5 corresponding to the adjustment blocks 4. The annular sleeve 2 is fixed to the frame 1. The four adjustment blocks 4 are each arc-shaped. All of the adjustment blocks 4 are distributed around the center of the annular sleeve 2 to form a circular structure 4a. The circular structure 4a is concentrically arranged with the annular sleeve 2. The adjustment blocks 4 are movably arranged on the annular sleeve 2 along the diameter of the circular structure 4a, allowing the diameter of the circular structure 4a to be variable. Specifically, a slide rail 21 is radially provided on one side of the annular sleeve 2 near the adjustment blocks 4. The adjustment blocks 4 are arranged in a one-to-one correspondence with the slide rail 21 and slide along the slide rail 21. The slide rail 21 is an elongated through hole extending along the diameter of the annular sleeve 2. A sliding pin 41 extends from the adjustment block 4 along the central axis of the annular sleeve 2 and is slidably inserted into the elongated through hole. The rotating ring 3 is rotatably mounted on the annular sleeve 2 about the central axis of the annular sleeve 2 and is located inside the circular structure 4a formed by the adjustment block 4. The inner sidewall of the adjustment block 4 is provided with an abutment portion 42, and the outer sidewall of the rotating ring 3 is provided with a driving portion 31. The driving portion 31 slidably contacts the abutment portion 42, so that when the rotating ring 3 rotates, the driving portion 31 drives the abutment portion 42, causing the adjustment block 4 to move radially. The elastic member 5 is disposed between the annular sleeve 2 and the adjustment block 4 to provide an elastic force that causes the adjustment block 4 to slide toward the center. The elastic member 5 is a compression spring. Using the elastic member 5, when the rotating ring 3 rotates in the opposite direction, the elastic member 5 can drive the adjustment block 4 toward the center, thereby reducing the diameter of the circular structure 4a. This, in turn, can reduce the diameter of the portion of the earphone that extends into the ear canal to accommodate smaller ear canals and improve its applicability.

[0022] See also Figure 3 and Figure 4 A gap 4b is formed between adjacent adjustment blocks 4, connecting the inner and outer sides of the circular structure 4a. This prevents the adjustment blocks 4 from interfering with each other when moving toward the center, while also ensuring that the inner and outer sides of the circular structure 4a are connected. This ensures that the ear canal remains connected to the outside world even when the earphones are worn, ventilating the ear canal and keeping it dry, thus ensuring a healthy and hygienic earphone.

[0023] One of the two opposite sides of the driving portion 31 and the abutting portion 42 is provided with a driving bevel 311 to drive the adjustment block 4 to move when the two abut against each other. The other of the two opposite sides of the driving portion 31 and the abutting portion 42 is provided with a matching bevel 421 that can slide and abut against the driving bevel 311. The driving portion 31 of the present invention is provided with a driving bevel 311 on the outer side, and the abutting portion 42 of the adjustment block 4 is provided with a matching bevel 421 on the inner side. By providing the driving bevel 311, it is possible to make it easier for the driving portion 31 to push the adjustment block 4 to move, thereby ensuring the smoothness and stability of the movement. The driving bevel 311 is provided with a plurality of positioning recesses 312, and the matching bevel 421 of the abutting portion 42 is provided with a positioning protrusion 422, and the positioning protrusion 422 is selectively stuck in the positioning recess 312. By providing the positioning recess 312 and the positioning projection 422 to cooperate with each other, the driving portion 31 and the abutting portion 42 can be mutually aligned after mutual adjustment, thereby ensuring that the adjustment block 4 can be positioned in a certain position, preventing the adjustment block 4 from accidentally resetting and affecting the wearing of the earphones. In addition, the arc diameter of the positioning projection 422 is between 1.5 and 2 times the arc diameter of the positioning recess 312. This ensures that the two are securely positioned and can also easily disengage when the driving inclined surface 311 and the mating inclined surface 421 slide relative to each other, thereby improving ease of use.

[0024] See also Figure 1 and Figure 2 The adjustable earphone 100 also includes a sound tube 6 and an ear cap 7. One end of the sound tube 6 communicates with the interior of the frame 1, while the other end is located within the rotating ring 3. The sound tube 6 and the rotating ring 3 are coaxially arranged and interconnected. The sound tube 6 transmits sound emitted from the earphone to the user's ear canal. Because the rotating ring 3 is relatively small and located close to the frame 1, it is relatively cumbersome to operate. By connecting the sound tube 6 to the rotating ring 3, the sound tube 6 can be driven to rotate, thereby driving the rotating ring 3 to rotate, thereby improving operational convenience. Specifically, the inner wall of the rotating ring 3 is provided with first gear teeth 32, and the outer wall of the sound tube 6 is provided with second gear teeth 61, which mesh with the second gear teeth 61. The use of the first gear teeth 32 and the second gear teeth 61 allows the rotating ring 3 and the sound tube 6 to be connected and rotate synchronously, and also makes assembly of the rotating ring 3 and the sound tube 6 more convenient and quick. The ear cap 7 is disposed at the end of the sound tube 6 away from the frame 1. The ear cap 7 can contact the side wall of the ear canal, thereby stabilizing the sound tube 6 in the ear canal and improving the stability and comfort of wearing the earphone. The ear cap 7 is made of rubber material.

[0025] like Figure 2As shown, the adjustable earphone 100 also includes an FPC detection module 8, which is located on the outer wall of the adjustment block 4. A battery circuit (not shown), a Bluetooth transceiver module (not shown) and an audio component (not shown) are provided in the frame 1. All circuits are integrated on a copper-clad circuit board (not shown). The copper-clad circuit board and the audio component are electrically connected and located inside the frame 1. The FPC detection module 8 is electrically connected to the copper-clad circuit board. By arranging the FPC detection module 8 on the outer wall of the adjustment block 4, the wearing condition of the earphone is detected by the principle of inductive capacitance, that is, whether the earphone is close to human skin tissue. It is possible to conveniently and effectively detect whether the earphone is worn in the user's ear canal, thereby being used to control whether the earphone plays audio, saving power and improving convenience of use. The number of the FPC detection modules 8 described in the present invention is two, which are respectively arranged on the outer walls of the two adjustment blocks 4 in a one-to-one correspondence; one of them can also be arranged on the outer wall of one of the adjustment blocks 4, and the other can be arranged on the inner surface of the frame near the ear canal. This can, to a certain extent, reduce the risk of a user's fingers accidentally touching a single FPC detection module 8 when picking up the earphones, leading to audio playback issues when the earphones are not properly placed in the ear canal, thereby improving detection accuracy. It is worth noting that since the size of the human ear canal varies slightly when the user adjusts the earphones, the movement distance of the adjustment block 4 is small, representing fine adjustment. When the user twists the sound tube 6 and rotating ring 3, the circuit and wiring connections within the earphones are less affected by the adjustment block 4.

[0026] See also Figure 1 , a flexible ring 9 is sleeved on the outer side of the adjustment block 4. The flexible ring 9 is movably connected to the adjustment block 4, and the flexible ring 9 can be disassembled. When wearing the earphones, the flexible ring 9 can contact the side wall of the user's ear canal, which can make the wearing more comfortable on the one hand, and on the other hand, it can allow the earwax secreted in the ear canal to adhere to the flexible ring 9 to prevent contamination of the internal structure. Therefore, when removing the earphones, the flexible ring 9 can be removed for cleaning, thereby improving the cleanliness of the earphones and the ear canal. In addition, when the diameter of the adjustment block 4 becomes larger, the adjustment block 4 will push the flexible ring 9 to extend, and the gap 4b between adjacent adjustment blocks 4 will still exist, and will not affect the air circulation effect of the adjustment block 4, thereby improving the convenience of using the earphones.

[0027] The flexible ring 9 is made of an elastic sponge. Since the sponge is washable, the ring 9 can be replaced after repeated use if oily impurities such as earwax appear on the ring 9. The washable sponge makes the ring 9 reusable, thereby reducing the replacement cost of the ring 9 to a certain extent. The sponge also has holes inside, which ensures that air can circulate between the inside of the earphone and the outside world through the gap 4b.

[0028] In addition, the material of the flexible ring 9 can also be an elastic cotton strip. When the flexible ring 9 is an elastic cotton strip, on the one hand, the elastic cotton strip can also be cleaned and reused; on the other hand, the elastic cotton strip has a greater oil absorption capacity than sponge materials, thereby improving the absorption capacity of oil secreted in the ear canal, thereby improving the cleanliness of the inner ear canal.

[0029] The flexible ring 9 is conical, and the outer contour edge of the flexible ring 9 is an arc-shaped structure. The small end of the flexible ring 9 is close to the ear cap 7, and the large end of the flexible ring 9 is away from the ear cap 7. In the initial state, the outer diameter of the flexible ring 9 is larger than the diameter of the annular sleeve 2. Since the external auditory canal is larger than the internal auditory canal, by making the flexible ring 9 a conical design, the flexible ring 9 conforms to ergonomics to a certain extent, thereby improving the comfort of the earphones. When the wearer's ear canal is small, by using the flexible ring 9, the user does not need to rotate the sound tube 6 and the rotating ring 3, and the flexible ring 9 can still contact the ear canal, so that the user can wear the earphones comfortably.

[0030] The drive unit 31 is made of an elastic material, and the sum of the elasticity of the flexible ring 9 and the elastic force of the elastic member 5 is less than the elasticity of the drive unit 31. For example, the drive unit 31 may be made of an elastic steel plate or an elastic patch. By twisting the sound tube 6 and the rotating ring 3, the user causes the drive unit 31 to push against the adjustment block 4 for adjustment. The elasticity of the drive unit 31 then transforms the rigid contact between the adjustment block 4 and the ear canal into a flexible contact, thereby improving wearing comfort.

[0031] Combining the above and Figure 3 and Figure 5 The working principle of the adjustable earphone 100 of the present invention is described in detail below:

[0032] When the earphone needs to accommodate a larger ear canal, the sound tube 6 is simply rotated counterclockwise, causing it to drive the second gear teeth 61. The second gear teeth 61, through engagement with the first gear teeth 32, drive the rotating ring 3. The rotation of the rotating ring 3 then rotates the driving portion 31. The driving bevel 311 of the driving portion 31 slidably contacts the mating bevel 421 of the abutment portion 42, causing the adjustment block 4 to slide along the slide rail 21 toward the outside of the annular sleeve 2. This increases the diameter of the circular structure 4a formed by the adjustment block 4, expanding the entire circular structure 4a. Simultaneously, the adjustment block 4 compresses the elastic member 5. When the adjustment block 4 is adjusted to the target position, the positioning protrusion 422 engages the corresponding positioning recess 312, securing the adjustment block 4 in its current position. The earphone is now adjusted to accommodate a larger ear canal, ensuring a secure and comfortable fit. When the earphone needs to adapt to a small ear canal, it is only necessary to rotate the sound tube 6 clockwise. At this time, the movement of the sound tube 6, the rotating ring 3, the driving part 31 and the adjustment block 4 is opposite to the above-mentioned movement direction. The adjustment block 4 moves toward the center under the elastic restoring force of the elastic member 5, and the positioning protrusion 422 is re-engaged in the other positioning recess 312, so that the diameter of the circular structure 4a becomes smaller, thereby adapting to the small ear canal.

[0033] Compared with the prior art, the present invention provides a plurality of adjustment blocks 4 on the annular sleeve 2, and makes the adjustment blocks 4 radially movable, thereby enclosing the adjustment blocks 4 into a circular structure 4a. A rotating ring 3 is provided within the circular structure 4a, and a driving portion 31 is provided on the outer wall of the rotating ring 3, and an abutment portion 42 is provided on the inner wall of the adjustment block 4. Therefore, by rotating the rotating ring 3, the abutment portion 42 can be driven by the driving portion 31, and the adjustment block 4 can be driven to move radially, thereby achieving the purpose of adjusting the diameter of the circular structure 4a. Therefore, when the earphone is placed in the ear canal, the diameter of the circular structure 4a can be adjusted so that the adjustment block 4 can contact the inner wall of the ear canal of different sizes, making it more comfortable to wear and suitable for ear canals of different sizes. In addition, adjustment can be made by simply rotating the rotating ring 3, which is very simple and convenient to operate.

[0034] The structures and principles of the FPC detection module 8, battery circuit, Bluetooth transceiver module and audio components involved in the adjustable earphone 100 of the present invention are well known to ordinary technicians in this field and will not be described in detail here.

[0035] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention still fall within the scope covered by the present invention.

Claims

1. An adjustable headset, characterized by: The earphone comprises a frame, an annular sleeve, a rotating ring and a plurality of adjustment blocks, wherein the annular sleeve is fixed to the frame, the plurality of adjustment blocks are distributed around the center of the annular sleeve, and the adjustment blocks are radially movably arranged on the annular sleeve; the rotating ring is rotatably arranged on the annular sleeve and is located on the inner side of the adjustment block; the inner side wall of the adjustment block is provided with an abutment portion, and the outer side wall of the rotating ring is provided with a driving portion, so that the abutment portion is driven by the driving portion when the rotating ring rotates, so that the adjustment block is radially adjustable; the adjustable earphone also comprises a sound tube, one end of the sound tube is communicated with the interior of the frame, the other end of the sound tube is located in the rotating ring and connected to the rotating ring, and the rotation of the sound tube can drive the rotating ring to rotate.

2. The adjustable earphone according to claim 1, wherein: One of the two opposite sides of the driving part and the abutting part is provided with a driving inclined surface, and the other of the two opposite sides of the driving part and the abutting part is provided with a matching inclined surface that can slide against the driving inclined surface to drive the adjustment block to move when the two abut against each other.

3. The adjustable earphone according to claim 2, wherein: The driving inclined surface is provided with a plurality of positioning recesses, and the abutting portion is provided with a positioning protrusion, and the positioning protrusion is selectively clamped in the positioning recesses.

4. The adjustable earphone according to claim 1, wherein: The inner wall of the rotating ring is provided with first gear teeth, the outer wall of the sound transmission tube is provided with second gear teeth, and the first gear teeth are meshed with the second gear teeth.

5. The adjustable earphone according to claim 1, wherein: The adjustable earphone further comprises an ear cap, which is arranged at an end of the sound transmission tube away from the frame.

6. The adjustable earphone according to claim 1, wherein: The adjustable earphone further includes an FPC detection module, which is arranged on the outer wall of the adjustment block or the inner surface of the frame near the ear canal.

7. The adjustable earphone according to claim 1, wherein: The adjustable earphone further comprises an elastic member, which is arranged between the annular sleeve and the adjusting block to provide an elastic force for the adjusting block to slide toward the center.

8. The adjustable earphone according to claim 1, wherein: The outer side of the adjusting block is sleeved with a flexible ring.

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