Novel rotary telescopic noise reduction earphone worn on back neck

Abstract

The utility model discloses a novel rotary telescopic noise reduction earphone worn on the back neck, which relates to the technical field of earphones, after the earphone is worn, a back neck head-mounted part is positioned on the back neck part of a user, and the user can adjust the length of the back neck head-mounted part according to the width of the back neck part of the user, so that the noise reduction effect is improved. The left earphone part and the right earphone part can rotate relative to the two ends of the rear neck head-mounted part, and the maximum rotation angle is 145 degrees. According to the earphone, a user can smoothly and comfortably wear the noise reduction earphone while wearing a safety helmet or a common helmet, so that the problems of compatibility and convenience possibly existing in the prior art are solved, and the requirements of wearing the safety helmet and high-quality sound isolation can be met at the same time when a worker is in a working environment needing hearing protection; in addition, when the earphone is not used, the user can easily rotate the earmuff and attach to the neck, so that the earmuff is naturally hung on the neck, no extra pressure is caused, the state that the earphone is ready for use at any time can be kept, and the user experience is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earphones, in particular to a novel rotating and telescopic back-neck-worn noise-reducing earphone. Background Art

[0002] The mainstream labor protection noise reduction headphones on the market currently mainly adopt the traditional head-mounted structure. This type of design encounters the following two core problems in practical applications:

[0003] 1. Limited compatibility: When workers need to wear a hat or a hard hat to perform work tasks, due to the design characteristics of the headphone, it is easy to cause spatial conflict and discomfort between the two, resulting in the inability of the hard hat and the headphones to coexist smoothly, which brings great inconvenience to the user, reduces work efficiency, and may affect their adoption and continuous use of noise protection measures;

[0004] 2. Poor carrying comfort: When not in use, the earmuffs of existing labor protection headphones are usually fixed in an upright position at 90 degrees to the shoulders. As a result, once the wearer's head makes a large swing up and down or left and right, the earmuffs are likely to collide with the head or shoulders. This situation not only causes physical discomfort, but also limits the wearer's normal range of movement, affecting flexibility and comfort, and may become a burden during the work process over time. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a novel rotating and telescopic noise-cancelling earphone worn behind the neck, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a new type of rotating and telescopic back-neck worn noise-cancelling earphones, including a back-neck head-mounted part, and a left earphone part and a right earphone part connected to the two ends of the back-neck head-mounted part. After the earphones are worn, the back-neck head-mounted part is located on the back of the user's neck, and the user can adjust the length of the back-neck head-mounted part according to the width of his or her back neck. The left earphone part and the right earphone part can rotate relative to both ends of the back-neck head-mounted part, and the maximum rotation angle is 145°. The structures of the left earphone part and the right earphone part both include an ear shell main body and an earphone bracket. The ear shell main body and the earphone bracket can also rotate relative to each other, and the rotation angle is 10°-50°.

[0007] Furthermore, the back neck headwear part includes a head pad, which is a hollow structure with a reinforcing strip inserted inside. The reinforcing strip is a steel sheet structure that can undergo elastic deformation. Both ends of the head pad are respectively connected to upper cover one, upper cover two, and a telescopic arm through a head clamp, and the inner sides of the upper cover one and upper cover two are connected to the lower cover through a snap-fit ​​structure.

[0008] Furthermore, both ends of the reinforcing strip are reserved with spring limit grooves, and the spring element is fixed inside the spring limit groove. The inner sides of the upper cover one and the upper cover two are provided with wave grooves, and the end surface of the spring element facing the wave groove has a protrusion, which will engage with the wave groove.

[0009] Furthermore, reserved holes are provided at both ends of the head pad and at one end of the telescopic arm facing the head pad, and a locking boss is connected to the inside of the head clamp, which is inserted into the reserved holes of the head pad and the telescopic arm in turn, and a threaded hole is provided inside the locking boss, and a screw is connected to the threaded hole.

[0010] Furthermore, one end of the upper cover 1 and the upper cover 2 facing away from the head pad are both connected with a rotating cam 1, and a rotating socket 2 is reserved at the end of the headphone bracket. The rotating cam 1 is inserted into the inside of the rotating socket 2, and an O-ring is set between the rotating cam 1 and the rotating socket 2.

[0011] Furthermore, an annular groove and a rotation allowance groove are reserved on the surface of the rotating cam shaft one. After the rotating cam shaft one is inserted into the rotating socket two, a retaining ring will be engaged with the outside of the annular groove. A rotation limit protrusion is reserved in the section of the rotation allowance groove. The rotation limit protrusion can limit the maximum rotation angle of the rotating cam shaft one and the rotating socket two.

[0012] Furthermore, the left earphone part and the right earphone part also include a bracket cover plate engaged on the inner side of the earphone bracket, a sound insulation sponge fixed inside the ear shell body, a pad engaged on the edge of the ear shell body and a sponge earmuff connected to the outside of the pad.

[0013] Furthermore, a rotating socket 1 is reserved on both sides of the ear shell body, and both ends of the earphone bracket are connected to a rotating convex shaft 2, which is inserted into the rotating socket 1, and the two brackets can rotate relative to each other.

[0014] Furthermore, the end surface of the sponge earmuff close to the ear or cheek of the user is configured as an inclined surface.

[0015] The utility model provides a novel rotating and retractable noise-reducing earphone worn behind the neck. Compared with the prior art, it has the following beneficial effects:

[0016] This headset has made an innovative reform to the wearing method of labor protection headsets. It no longer uses the traditional head-mounted design, but is designed as a back-hanging structure. Through scientific and rigorous force analysis, we have conducted in-depth research on the force conditions of back-hanging headsets at different angles, and finally determined the most reasonable and stable wearing angle to ensure that the headset is comfortable and firm during use, effectively preventing the headset from slipping. In addition, we have also made unique improvements in the design of the earmuffs, using a beveled special-shaped design to further enhance the stability and fit of the headset when worn, so that the back-hanging headset can maintain a good wearing experience in a variety of scenarios. At the same time, in order to improve the user experience, we have also specially designed a rotation function between the earmuffs and the headband, with a maximum rotation angle of up to 145 degrees. This humanized design allows users to easily rotate and comfortably hang the headset around their neck when they do not need to wear it, greatly increasing the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the disassembly of the utility model;

[0018] Figure 2 This is a schematic diagram of the disassembly of the back neck headwear part of the utility model;

[0019] Figure 3 This is a schematic diagram of the disassembly of the left earphone part of the utility model;

[0020] Figure 4 It is a detailed view of the head pad, head clamp, reinforcement strip, and telescopic arm in the utility model;

[0021] Figure 5 It is a detailed view of the reinforcing strip and the spring element in the utility model;

[0022] Figure 6 This is a detailed view of the upper cover 1 in the utility model;

[0023] Figure 7 It is a detailed view of the head pad, head clamp, upper cover 1, telescopic arm, and lower cover in the utility model;

[0024] Figure 8 It is a detailed diagram of the connection between the middle ear shell body and the earphone bracket of the utility model;

[0025] Fig. 9 This is a detailed diagram of the relative rotation between the middle ear shell body and the earphone bracket of the utility model;

[0026] Fig.10 This is a detailed view of the surface of the sponge earmuff in the utility model being set as an inclined surface;

[0027] Fig.11 It is a detailed view of the upper cover 1 and the earphone bracket in the utility model;

[0028] Fig.12 This is a detailed view of the upper cover 1, the earphone bracket, the bracket cover plate, and the clamp ring in the utility model;

[0029] Fig.13 This is the effect diagram of the utility model when it is hung on the back of the human neck;

[0030] Fig.14 This is the effect diagram of the utility model being removed and hung around the neck.

[0031] In the figure: A, back neck headband; A1, head pad; A11, reserved hole; A2, head clamp; A21, positioning boss; A3, upper cover 1; A31, rotating convex shaft 1; A32, annular slot; A33, rotation limit protrusion; A34, rotation allowance slot; A35, wave slot; A4, upper cover 2; A5, reinforcement strip; A51, spring piece limit slot; A6, telescopic arm; A7, lower cover; A8, spring piece element; A9, O-ring; A10, screw; B, left earphone part; B1, ear shell body; B11, rotating jack 1; B2, earphone bracket; B21, rotating convex shaft 2; B22, rotating jack 2; B3, bracket cover; B4, snap ring; B5, sound insulation sponge; B6, pad; B7, sponge earmuff; B71, inclined plane; C, right earphone part. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] See also Figure 1-14 The utility model provides a technical solution: a novel rotating and telescopic back-neck worn noise reduction earphone, comprising a back-neck head-mounted part A, and a left earphone part B and a right earphone part C connected at both ends of the back-neck head-mounted part A (the left earphone part B and the right earphone part C have the same structure). After the earphone is worn, the back-neck head-mounted part A is located at the back of the user's neck, and the user can adjust the length of the back-neck head-mounted part A according to the width of his or her back neck. The left earphone part B and the right earphone part C can both rotate relative to the two ends of the back-neck head-mounted part A, and the maximum rotation angle is 145°. In the structure of the left earphone part B and the right earphone part C, both include an ear shell main body B1 and an earphone bracket B2. The ear shell main body B1 and the earphone bracket B2 can also rotate relative to each other, and the rotation angle is 10°-50°.

[0034] The back neck headwear part A includes a head pad A1 (the head pad A1 is a silicone head pad made of 70° soft rubber material, and is designed to be able to deform comfortably according to the shape of the head when the user wears it, and to be easy to hang on the neck when not worn). The head pad A1 is a hollow structure, and a reinforcing strip A5 is inserted inside it (the reinforcing strip A5 provides support and strength). The reinforcing strip A5 is a steel sheet structure that can undergo elastic deformation. Both ends of the head pad A1 are respectively connected to the upper cover A3, the upper cover A4, and the telescopic arm A6 (the telescopic arm A6 allows the size to be adjusted to adapt to the user's head) through a head clamp A2 (the head clamp A2 is used to fix on the user's head). Different user needs), the inner sides of the upper cover A3 and the upper cover A4 are connected to the lower cover A7 through a snap-fit ​​structure, both ends of the reinforcing strip A5 are reserved with spring limit grooves A51, and the spring element A8 is fixed inside the spring limit groove A51 (the spring element A8 may be used to increase elasticity or maintain a certain specific angle), the inner sides of the upper cover A3 and the upper cover A4 are both provided with a wave card groove A35, and the end surface of the spring element A8 facing the wave card groove A35 has a protrusion, which will snap with the wave card groove A35, and both ends of the head pad A1 and the end of the telescopic arm A6 facing the head pad A1 are reserved A reserved hole A11 is provided, and a positioning boss A21 is connected to the interior of the head clamp A2. The positioning boss A21 is inserted into the reserved holes A11 of the head pad A1 and the telescopic arm A6 in sequence, and a threaded hole is provided inside the positioning boss A21, and a screw A10 is connected to the threaded hole (the screw A10 is used for fastening the components together). The ends of the upper cover A3 and the upper cover A4 facing away from the head pad A1 are both connected with a rotating convex shaft A31. A rotating socket B22 is reserved at the end of the earphone bracket B2. The rotating convex shaft A31 is inserted into the interior of the rotating socket B22, and the rotating convex shaft A31 and the rotating socket B22 are connected. An O-ring A9 is set between B22 (O-ring A9 is used for waterproof sealing or other buffering purposes), and an annular groove A32 and a rotation allowance groove A34 are reserved on the surface of the rotating cam A31. After the rotating cam A31 is inserted into the rotating socket B22, a snap ring B4 will be engaged with the outside of the annular groove A32 (the snap ring B4 is used for docking and fixing with the back neck headwear part A), and a rotation limit protrusion A33 is reserved in the section of the rotation allowance groove A34. The rotation limit protrusion A33 can limit the maximum rotation angle of the rotating cam A31 and the rotating socket B22.

[0035] The left earphone part B and the right earphone part C also include a bracket cover B3 engaged on the inner side of the earphone bracket B2, a sound insulation sponge B5 fixed inside the ear shell main body B1 (the sound insulation sponge B5 improves the sound quality and isolates external noise), a pad B6 engaged on the edge of the ear shell main body B1, and a sponge earmuff B7 connected to the outside of the pad B6 (the sponge earmuff B7 provides a comfortable wearing experience), the end surface of the sponge earmuff B7 close to the user's ear or cheek is set as a slope B71, and a rotating socket B11 is reserved on both sides of the ear shell main body B1, and both ends of the earphone bracket B2 are connected to a rotating convex shaft B21, the rotating convex shaft B21 is inserted into the inside of the rotating socket B11, and the two brackets can rotate relative to each other.

[0036] When assembling the headset:

[0037] See also Figure 4-7 , the reinforcement strip A5 is inserted into the head pad A1, and then the positioning boss A21 of the head clamp A2 is precisely aligned and inserted into the preset reserved hole A11 of the A1 head pad and the telescopic arm A6. Then, the telescopic arm A6 is cleverly embedded in the groove of the head clamp A2, and the top screw A10 is used to ensure their firm fixation. The spring element A8 is accurately placed in the pre-designed spring limit groove A51 of the reinforcement strip A5. The spring element A8 cooperates with the wave card slot A35 to realize the flexible adjustment function of the length of the back neck headwear part A, and its telescopic range can reach 2.5 cm, which greatly improves the convenience and comfort of use. Subsequently, the entire assembled part is adapted and inserted into the internal space of the upper cover A3. In this process, the lower cover A7 is covered on the card slot of the upper cover A3, and a stable snap connection is achieved by relying on the six buckle positions set inside to ensure the tight assembly of the components. Finally, all components are reinforced again using the component screws A10 to ensure the stability of the overall structure. The assembly steps on the right side are exactly the same as those on the left side. The components are assembled one by one according to the above method, and finally the back neck headwear part A of the assembly is completely installed;

[0038] See also Figure 8-10 The ear shell body B1 and the earphone bracket B2 are connected by a precise snap-in interference fit, which enhances stability. It is worth noting that a 22-degree rotational freedom is designed between the ear shell body B1 and the earphone bracket B2 (achieved by the rotating convex shaft B21 and the rotating jack B11). The maximum rotation state is shown in the details. Fig. 9As shown. This unique rotating design is designed to meet the personalized needs of different users, so that when wearing the headphones, the fitting angle of the headphones to the face can be flexibly adjusted according to the contours of the face, so as to achieve the best comfort and fit. In addition, the ear shell body B1 and the pad B6 are connected by an internal full circle buckle to ensure a stable connection between the two. The sponge earmuffs B7 are equipped with 3M glue and are fixed to the pad B6 by bonding, so that users can easily replace them when necessary. In addition, the sponge earmuffs B7 are specially designed in the shape of a slope B71. This design takes into account that when the user adopts a rear-hanging wear style, the headphones can better fit the contours of the face, effectively preventing the headphones from accidentally sliding backwards due to activities or gravity, and further improving the stability and comfort of wearing;

[0039] See also Figure 11-12 First, we precisely insert the rotating convex shaft A31 in the back neck headband part A into the rotating socket B21 of the headphone bracket B2; then, we precisely embed the clamping ring B4 into the annular clamping groove A32; finally, we install the bracket cover B3 to complete the overall fixed package, and the tightening work is performed by the screw A10. The rotating convex shaft A31 of the upper cover A3 is equipped with a card point that can be rotated up to 145 degrees (i.e., the rotation limit protrusion A33 and the rotation margin groove A34), which is engaged with the corresponding card point on the rotating socket B21. This ingenious structural design has significant advantages in practical applications: when the user is not using the headphones, the headphones can be rotated 145 degrees and naturally hung on the neck. At this time, the left and right headphone units can be rotated to a state parallel to the cheeks, thereby ensuring that the user can get the maximum degree of comfort whether wearing or idle, and optimizing the use experience.

Claims

1. A novel rotating and retractable back-neck noise-cancelling headset, comprising a back-neck head-mounted part (A), and a left earphone part (B) and a right earphone part (C) connected at both ends of the back-neck head-mounted part (A), characterized in that: When the earphones are worn, the back neck headband part (A) is located on the back neck of the user, and the user can adjust the length of the back neck headband part (A) according to the width of the back neck of the user. The left earphone part (B) and the right earphone part (C) can rotate relative to both ends of the back neck headband part (A), and the maximum rotation angle is 145°. The structures of the left earphone part (B) and the right earphone part (C) both include an ear shell main body (B1) and an earphone bracket (B2).

2. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 1, characterized in that: The back neck headwear part (A) comprises a head pad (A1), the head pad (A1) is a hollow structure, a reinforcing strip (A5) is inserted inside the head pad (A1), and the reinforcing strip (A5) is a steel sheet structure capable of elastic deformation. Both ends of the head pad (A1) are respectively connected to an upper cover 1 (A3), an upper cover 2 (A4), and a telescopic arm (A6) through a head clamp (A2), and the inner sides of the upper cover 1 (A3) and the upper cover 2 (A4) are connected to a lower cover (A7) through a snap-fit ​​structure.

3. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 2, characterized in that: Both ends of the reinforcing strip (A5) are reserved for spring-type limiting grooves (A51), and a spring-type element (A8) is fixedly engaged inside the spring-type limiting groove (A51). The inner sides of the upper cover 1 (A3) and the upper cover 2 (A4) are both provided with a wave-shaped groove (A35), and the end surface of the spring-type element (A8) facing the wave-shaped groove (A35) has a protrusion, which is engaged with the wave-shaped groove (A35).

4. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 2, characterized in that: Both ends of the head pad (A1) and one end of the telescopic arm (A6) facing the head pad (A1) are provided with reserved holes (A11); the head clamp (A2) is internally connected with a locking boss (A21); the locking boss (A21) is sequentially inserted into the reserved holes (A11) of the head pad (A1) and the telescopic arm (A6); a threaded hole is provided inside the locking boss (A21), and a screw (A10) is connected to the threaded hole.

5. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 2, characterized in that: The ends of the upper cover 1 (A3) and the upper cover 2 (A4) facing away from the head pad (A1) are both connected to a rotating convex shaft 1 (A31); a rotating socket 2 (B22) is reserved at the end of the earphone bracket (B2); the rotating convex shaft 1 (A31) is inserted into the rotating socket 2 (B22); and an O-ring (A9) is provided between the rotating convex shaft 1 (A31) and the rotating socket 2 (B22).

6. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 5, characterized in that: The surface of the rotating convex shaft one (A31) is respectively reserved with an annular clamping groove (A32) and a rotation allowance groove (A34); after the rotating convex shaft one (A31) is inserted into the interior of the rotating socket two (B22), a clamping ring (B4) is engaged with the outside of the annular clamping groove (A32); a rotation limiting protrusion (A33) is reserved in the section of the rotation allowance groove (A34); the rotation limiting protrusion (A33) can limit the maximum rotation angle of the rotating convex shaft one (A31) and the rotating socket two (B22).

7. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 1, characterized in that: The left earphone part (B) and the right earphone part (C) also include a bracket cover (B3) engaged with the inner side of the earphone bracket (B2), a sound insulation sponge (B5) fixed inside the ear shell body (B1), a pad (B6) engaged with the edge of the ear shell body (B1), and a sponge earmuff (B7) connected to the outside of the pad (B6).

8. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 7, characterized in that: Rotating sockets 1 (B11) are reserved on both sides of the ear shell body (B1), and rotating convex shafts 2 (B21) are connected to both ends of the earphone bracket (B2). The rotating convex shafts 2 (B21) are inserted into the rotating sockets 1 (B11), and the two brackets can rotate relative to each other.

9. The novel rotating and retractable noise-cancelling earphone worn behind the neck according to claim 7, characterized in that: The end surface of the sponge earmuff (B7) close to the ear or cheek of the user is configured as an inclined surface (B71).

10. According to the novel rotating and telescopic noise-cancelling earphone worn behind the neck as claimed in claim 7, the ear shell body (B1) and the earphone bracket (B2) can also rotate relative to each other, and the rotation angle is 10°-50°.

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