Connecting clamping arm telescopic structure of headphone

Abstract

The utility model discloses a connecting and clamping arm telescopic structure of a headphone, which comprises a connecting seat fixed at the end part of a connecting and clamping arm and provided with a first stroke limiting hole, and the connecting and clamping arm is provided with a second stroke limiting hole; the elastic sheet is arranged on the inner side of the lower end of the connecting seat, and a convex part protruding outwards is formed on the elastic sheet; a gear clamping groove matched with the convex part of the elastic sheet is formed in the inner side of the telescopic seat; the decorative cover is provided with a screw hole column, the screw hole column penetrates through the second stroke limiting hole and the first stroke limiting hole to be in butt joint with the counter bore of the telescopic base and is fixed through a first screw, so that the decorative cover and the telescopic base are installed outside the connecting base in a wrapping and clamping mode and can slide in a telescopic mode, and the screw hole column, the first stroke limiting hole and the second stroke limiting hole form a telescopic anti-disengaging structure; an anti-falling function can be realized; and the swing seat is arranged at the lower end of the telescopic seat and can swing in the vertical direction, and a connector of the swing seat is connected with the earphone main body, so that the earphone main body can swing in the vertical direction to automatically adjust the angle so as to be suitable for wearing of different head types, and the comfort is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of headphone products, and specifically to a telescopic structure for the clip arm of a headphone. Background Technology

[0002] With the improvement of people's living standards, the demand for headphones with different functions in social entertainment and gaming markets is constantly increasing. Consumers not only need differences in auditory experience, but also structural adjustments to meet the user's wearing needs. Over-ear headphones typically consist of a headband and the main body of the headphones. The headband is worn on the head, while the main body houses the speaker units and other components for listening enjoyment.

[0003] In order to ensure that the main body of the headphones fits the ear during wear, the headband of existing headphones is usually designed with a retractable structure to adapt to different head shapes.

[0004] For example, Chinese utility model patent CN210629793U discloses a Bluetooth headset, including a headband and earcups at both ends of the headband. A telescopic component is provided between the headband and the earcups. The telescopic component includes a first cover, a telescopic member, a connector, and a spring. The connector is fixedly connected to the headband. The spring has an upwardly protruding part. The lower end of the connector has a mounting position that matches the spring. The spring is located at the mounting position. The telescopic member has multiple slots that match the protrusion. The slots are spaced apart. The telescopic member is telescopically mounted on the lower end of the connector through the slots and the protrusion. The first cover is mounted on the upper end of the connector and moves with the telescopic member. The earcups are fixedly connected to the first cover.

[0005] When the aforementioned telescopic component moves telescopically relative to the headband, the headband itself does not have any structure to limit the travel of the first cover. It is only positioned by the slot between the spring protrusion and the telescopic component. If excessive force is applied, the first cover may detach from the headband.

[0006] Furthermore, the aforementioned telescopic component is directly assembled to the earmuffs via the connector at the lower end of the first cover. It cannot swing up or down beforehand, meaning that neither earmuff can swing relative to the telescopic component in the direction of their connection. As a result, when the earmuffs are placed on the human ear, they are only clamped to the human ear by the elastic contraction force of the headband from the outside to the inside. This makes it unsuitable for different head shapes, causing discomfort for some head shapes.

[0007] In view of the above, the inventors propose the following technical solution. Summary of the Invention

[0008] The purpose of this invention is to overcome the shortcomings of the prior art and provide a telescopic structure for the clip arm of a headset.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The telescopic structure of the headphone's clamp arm includes: a connecting seat, which is fixed to the end of the clamp arm, and the connecting seat is provided with a first stroke limiting hole, and the clamp arm is provided with a second stroke limiting hole corresponding to and adapted to the first stroke limiting hole; a spring piece, which is disposed on the inner side of the lower end of the connecting seat, and the spring piece has an outwardly protruding protrusion formed in the middle; a telescopic seat, the inner side of which is provided with a plurality of continuously distributed stop slots adapted to the protrusion of the spring piece; and a decorative cover, which has screw holes. The cover is located on the outside of the connecting arm. The screw post passes through the second travel limit hole and the first travel limit hole and then connects with the countersunk hole of the telescopic seat. The first screw passes through the countersunk hole and is screwed into the screw hole of the screw post, so that the decorative cover and the telescopic seat are clamped and installed on the outside of the connecting seat and can slide relative to the connecting seat. The screw post, the second travel limit hole and the first travel limit hole form a telescopic anti-detachment structure. The swing seat is located at the lower end of the telescopic seat and can swing in the up and down direction. The connector of the swing seat extends out of the lower end of the telescopic seat and is used to connect with the headphone body.

[0010] Furthermore, in the above technical solution, the inner side of the telescopic seat is provided with a first gear plate and a second gear plate that are spaced apart. The first gear plate and the second gear plate are respectively provided with a gear slot that corresponds to each other. The gear slot is an arc-shaped slot. Adjacent gear slots on the first gear plate or the second gear plate are connected by an arc-shaped protrusion. The cross-section of the protrusion is an outwardly convex arc shape.

[0011] Furthermore, in the above technical solution, the lower outer side of the telescopic seat is provided with a movable groove, and a spring arm is provided in the movable groove. The upper end of the swing seat is pivotally connected to the movable groove, and the rear side of the upper end of the swing seat is in contact with the spring arm.

[0012] Furthermore, in the above technical solution, the upper rear side of the swing seat is provided with an inclined surface; the spring arm is formed with an arc-shaped protrusion, and the arc-shaped surface of the arc-shaped protrusion is in contact with the inclined surface.

[0013] Furthermore, in the above technical solution, the two inner sides of the movable groove are provided with pivot grooves, the pivots provided on the two outer sides of the swing seat are inserted into the pivot grooves along the openings on the sides of the pivot grooves, and the telescopic seat is provided with a limit frame, the insert of the limit frame is also embedded in the openings on the sides of the pivot grooves to limit the pivots in the pivot grooves.

[0014] Furthermore, in the above technical solution, the limiting frame has two inserts, which span the outside of the swing seat, and the two inserts are simultaneously embedded in two pivot grooves and locked by several second screws, and the surface of the insert that contacts the pivot is an arc-shaped concave surface.

[0015] Furthermore, in the above technical solution, both sides of the limiting frame are provided with outwardly protruding positioning parts; the telescopic seat is provided with a positioning groove that matches the positioning part, and the positioning part is embedded and fixed in the positioning groove.

[0016] Furthermore, in the above technical solution, the connecting arm is a metal sheet with elastic deformation capability; a plastic part is also provided on the inner side of the connecting arm, and the end of the plastic part is also snapped together with the connecting seat; and a flexible pad is also provided on the outside of the plastic part.

[0017] Furthermore, in the above technical solution, a notch is formed in the middle of the inner side of the plastic part, and a limiting hole through the notch is provided inward along the outer side of the plastic part; the flexible pad is integrally formed in the notch by a flexible material and is partially embedded in the limiting hole.

[0018] Furthermore, in the above technical solution, a connecting buckle is formed on the lower side of the end of the plastic part, and a buckle groove is provided on the upper end of the connecting seat. The connecting buckle is inserted and fixed to the buckle groove. A limiting piece is also provided at the opening of the buckle groove of the connecting seat, and the outside of the limiting piece is in contact with the inner side of the clamping arm.

[0019] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The decorative cover in the present invention is connected to the countersunk hole of the telescopic seat through its own screw post and then locked together by the first screw, and is fixed to the end of the connecting arm and both sides of the connecting seat in a telescopic manner. The decorative cover is provided with the screw post through the second stroke limiting hole at the end of the connecting arm and the first stroke limiting hole of the connecting seat to form a telescopic anti-detachment structure, which limits the telescopic sliding stroke of the telescopic seat and the decorative cover, and can also effectively prevent the telescopic structure of the connecting arm from detaching from the connecting arm during the telescopic process. Moreover, the screw post of the telescopic anti-detachment structure not only plays the role of locking with the first screw, but also plays the role of sliding in the first and second stroke limiting holes, achieving a dual-purpose effect. Its structure is extremely simple. The connector of the swing seat is connected to the headphone body of the headphones, and the swing seat can swing up and down relative to the telescopic seat, so that the headphone body can automatically adjust its angle relative to the telescopic seat. Both headphone bodies can swing up and down in the direction of their connection to automatically adjust their angle, so that they can be used for different head shapes and improve wearing comfort. Attached Figure Description

[0020] Figure 1 This is a perspective view of the present invention;

[0021] Figure 2 This is an assembly drawing from another perspective of this utility model;

[0022] Figure 3This is an exploded perspective view of the present invention;

[0023] Figure 4 This is a cross-sectional view of the present invention;

[0024] Figure 5 This is a perspective view of the utility model after the telescopic base has been disassembled;

[0025] Figure 6 This is a perspective view of the utility model after the decorative cover has been removed;

[0026] Figure 7 This is a perspective view of the utility model after disassembling the swing seat;

[0027] Figure 8 This is a perspective view of the utility model after the swing seat has been disassembled;

[0028] Figure 9 This is a perspective view of the telescopic seat in this utility model;

[0029] Figure 10 This is an assembly drawing of the present invention and the headphone body. Detailed Implementation

[0030] The present invention will be further described below with reference to specific embodiments and accompanying drawings.

[0031] See Figure 1-10 As shown, a telescopic arm structure for a headset includes: a connecting base 2, a spring 3, a telescopic base 4, a decorative cover 5, and a swing base 6.

[0032] The connecting seat 2 is fixed to the end of the clamping arm 1 (i.e., the headband), and the connecting seat 2 is provided with a first stroke limiting hole 21, and the clamping arm 1 is provided with a second stroke limiting hole 11 corresponding to and adapted to the first stroke limiting hole 21; the spring piece 3 is provided on the inner side of the lower end of the connecting seat 2, and the spring piece 3 has an outwardly protruding protrusion 31 formed in the middle; the telescopic seat 4 is provided with a plurality of continuously distributed gear slots 40 that are adapted to the protrusions 31 of the spring piece 3. When the telescopic seat 4 moves telescopically relative to the connecting seat 2 and the end of the clamping arm 1, the protrusions 31 of the spring piece 3 can move from the previous gear slot 40 to the next gear slot 40, and achieve the purpose of elastic clamping and positioning; the mounting The decorative cover 5 has a screw post 51, which is located on the outside of the connecting arm 1. The screw post 51 passes through the second travel limit hole 11 and the first travel limit hole 21 and then connects with the countersunk hole 41 of the telescopic seat 4. The first screw 42 passes through the countersunk hole 41 and is screwed to the screw hole of the screw post 51, so that the decorative cover 5 and the telescopic seat 4 are clamped and installed on the outside of the connecting seat 2 and can slide relative to the connecting seat 2. The screw post 51, the second travel limit hole 11 and the first travel limit hole 21 form a telescopic anti-detachment structure. The swing seat 6 is located at the lower end of the telescopic seat 4 and can swing in the up and down direction. The connector 61 of the swing seat 6 extends out of the lower end of the telescopic seat 4 and is used to connect with the headphone body 100. In other words, the decorative cover 5 in this utility model is connected to the countersunk hole 41 of the telescopic seat 4 through its own screw post 51, and then locked together by the first screw 42. It is fixed to the end of the connecting arm 1 and both sides of the connecting seat 2 in a telescopic manner. The decorative cover 5 passes through the second stroke limiting hole 11 at the end of the connecting arm 1 and the first stroke limiting hole 21 of the connecting seat 2 through the screw post 51 to form a telescopic anti-detachment structure. This limits the telescopic sliding stroke of the telescopic seat 4 and the decorative cover 5, and can also effectively prevent the telescopic structure of the connecting arm from detaching from the connecting arm during the telescopic process, thus achieving the anti-detachment function. Moreover, the screw post 51 of the telescopic anti-detachment structure not only plays the role of locking with the first screw, but also plays the role of sliding in the first and second stroke limiting holes, achieving a dual-purpose effect. Its structure is extremely simple. The connector 61 of the swing seat 6 is connected to the headphone body 100 of the headphones, and the swing seat 6 can swing in the up and down direction relative to the telescopic seat 4, so that the headphone body 100 can automatically adjust the angle relative to the telescopic seat 4, so that both headphone bodies 100 can swing in the up and down direction in the direction of their connection to automatically adjust the angle, so that they can be used for different head shapes and improve the wearing comfort.

[0033] The clamping arm 1 is a curved metal sheet with elastic deformation capability. When it opens outward, it forms an elastic force from the outside in, which in turn provides elastic clamping force to the earphone body 100, so that the earphone body 100 stably covers the outside of the ear. The inner side of the clamping arm 1 is also provided with a plastic part 7. The end of the plastic part 7 is also snapped to the connecting seat 2, which makes the connection between the clamping arm 1 and the connecting seat 2 more stable and facilitates the later installation of the flexible pad 8. The outer side of the plastic part 7 is also provided with a flexible pad 8, which is used to contact the head and can improve the wearing comfort.

[0034] To ensure a more stable assembly between the flexible pad 8 and the plastic part 7, a notch 71 is formed in the middle of the inner side of the plastic part 7, and a limiting hole 72 is provided inward along the outer side of the plastic part 7, passing through the notch 71. The flexible pad 8 is integrally formed in the notch 71 from a flexible material (such as foam material), and is partially embedded in the limiting hole 72, thereby making the flexible pad 8 stably positioned outside the plastic part 7. Its structure is extremely stable, avoiding the risk of accidental detachment.

[0035] The connecting seat 2 is fitted and installed in close contact with the clamping arm 1 and secured with several screws.

[0036] The assembly structure of the plastic part 7 and the connecting seat 2 is as follows: a connecting buckle 73 is formed on the lower side of the end of the plastic part 7, and a buckle groove 22 is provided on the upper end of the connecting seat 2. The connecting buckle 73 is inserted into the buckle groove 22 and fixed to form a stable assembly; a limiting piece 23 is also provided at the opening of the buckle groove 22 of the connecting seat 2, and the outside of the limiting piece 23 is in contact with the inner side of the clamping arm 1.

[0037] To achieve a more stable assembly between the protrusion 31 of the spring piece 3 and the gear slot 40, the following design is also made: the inner side of the telescopic seat 4 is provided with a first gear plate 47 and a second gear plate 43 that are spaced apart. The first gear plate 47 and the second gear plate 43 are respectively provided with a one-to-one corresponding gear slot 40. That is to say, the telescopic seat 4 is provided with two rows of one-to-one corresponding gear slots 40. The protrusion 31 of the spring piece 3 is simultaneously embedded in the two gear slots 40, which has a larger contact area and a better holding and positioning effect, so that the protrusion 31 of the spring piece 3 and the gear slot 40 form a more stable assembly.

[0038] The gear slot 40 is an arc-shaped slot, and two adjacent gear slots 40 on the first gear plate 47 or the second gear plate 43 are connected by an arc-shaped protrusion; the protrusion 31 has an outwardly convex arc shape in cross section, which allows the protrusion 31 to smoothly leave the previous gear slot 40 and enter the next gear slot 40, improving the smoothness of the telescopic seat's extension and retraction.

[0039] The decorative cover 5 covers the outside of the connecting arm 1, serving a decorative purpose.

[0040] The following is a detailed description of the assembly structure of the telescopic seat 4 and the swing seat 6.

[0041] The telescopic seat 4 has an inwardly extending groove 44 on its lower outer side, within which a spring arm 45 is disposed. The upper end of the swing seat 6 is pivotally connected to the groove 44, and the rear side of the upper end of the swing seat 6 also contacts the spring arm 45, thus elastically limiting the swing angle. When the earphone body 100 connected to the swing seat 6 covers the ear, the earphone body 100 will generate an outward force due to contact with the head. At this time, the earphone body 100 drives the swing seat 6 to swing. Since the rear side of the upper end of the swing seat 6 is also in contact with the spring arm 45, the spring arm 45 will be compressed, and the spring arm 45 will generate a rebound force in the opposite direction. This achieves redundancy in the up-and-down swing direction, allowing the earphone body 100 to cover the ear more stably, and the non-rigid contact makes the wearer feel more comfortable.

[0042] The swing seat 6 has an inclined surface 62 on the rear side of its upper end; the spring arm 45 is formed with an arc-shaped protrusion 451, and the arc surface of the arc-shaped protrusion 451 contacts the inclined surface 62. The contact area is small, which enables the swing seat 6 to achieve more stable swinging.

[0043] The movable groove 44 has two inner sides with pivot grooves 441. The pivots 63 on the two outer sides of the swing seat 6 are inserted into the pivot grooves 441 through the openings 442 on the side of the pivot grooves 441. The telescopic seat 4 is provided with a limit frame 46. The inserts 461 of the limit frame 46 are also embedded in the openings 442 on the side of the pivot grooves 441 to limit the pivots 63 in the pivot grooves 441. The entire assembly structure is simple and can stably limit the pivots 63 without damaging them. The installation of the pivots 63 and the pivot grooves 441 is also easier. In addition, the limiting frame 46 has two inserts 461. The limiting frame 46 spans the outside of the swing seat 6, and the two inserts 461 are simultaneously embedded in the two pivot grooves 441 and locked by several second screws, thereby ensuring the stability of the assembly structure. The surface of the insert 461 that contacts the pivot 63 is an arc-shaped concave surface, which enables the pivot 63 to rotate more smoothly.

[0044] Both sides of the limiting frame 46 are provided with outwardly protruding positioning parts 462; the telescopic seat 4 is provided with a positioning groove 401 that matches the positioning part 462. The positioning part 462 is embedded and fixed in the positioning groove 401 to achieve the positioning function, which not only improves the stability of the assembly structure, but also facilitates the later locking of the second screw.

[0045] In summary, the decorative cover 5 of this utility model, after its own screw post 51 is connected to the countersunk hole 41 of the telescopic seat 4, is locked together by the first screw and fixed to the end of the connecting arm 1 and both sides of the connecting seat 2 in a telescopic manner. The decorative cover 5, through the screw post 51 passing through the second stroke limiting hole 11 at the end of the connecting arm 1 and the first stroke limiting hole 21 of the connecting seat 2, forms a telescopic anti-detachment structure, which limits the telescopic sliding stroke of the telescopic seat 4 and the decorative cover 5, and can also effectively prevent the telescopic structure of the connecting arm from detaching from the connecting arm during the telescopic process. Moreover, the screw post 51 of the telescopic anti-detachment structure not only plays the role of locking with the first screw, but also plays the role of sliding in the first and second stroke limiting holes, achieving a dual-purpose effect. Its structure is extremely simple. The connector 61 of the swing seat 6 is connected to the headphone body 100 of the headphones, and the swing seat 6 can swing in the up and down direction relative to the telescopic seat 4, so that the headphone body 100 can automatically adjust the angle relative to the telescopic seat 4, so that both headphone bodies 100 can swing in the up and down direction in the direction of their connection to automatically adjust the angle, so that they can be used for different head shapes and improve the wearing comfort.

[0046] Of course, the above description is only a specific embodiment of the present utility model and is not intended to limit the scope of the present utility model. All equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model should be included in the scope of the claims of the present utility model.

Claims

1. A telescopic structure for the clip arm of a headset, characterized in that: It includes: The connecting seat (2) is fixed to the end of the clamping arm (1), and the connecting seat (2) is provided with a first stroke limiting hole (21), and the clamping arm (1) is provided with a second stroke limiting hole (11) that corresponds to and is adapted to the first stroke limiting hole (21). The spring piece (3) is located on the inner side of the lower end of the connecting seat (2), and the spring piece (3) has an outwardly raised protrusion (31) formed in the middle. Telescopic seat (4), the inside of which is provided with multiple continuously distributed gear slots (40) that are adapted to the protrusions (31) of the spring piece (3). The decorative cover (5) has a screw post (51) and is located on the outside of the connecting arm (1). The screw post (51) passes through the second stroke limiting hole (11) and the first stroke limiting hole (21) and then connects with the countersunk hole (41) of the telescopic seat (4). The first screw (42) passes through the countersunk hole (41) and then screws and fixes itself to the screw hole of the screw post (51), so that the decorative cover (5) and the telescopic seat (4) are clamped and installed on the outside of the connecting seat (2) and can slide relative to the connecting seat (2). The screw post (51) forms a telescopic anti-detachment structure with the second stroke limiting hole (11) and the first stroke limiting hole (21). The swing seat (6) is located at the lower end of the telescopic seat (4) and can swing in the up and down direction. The connector (61) of the swing seat (6) extends out of the lower end of the telescopic seat (4) and is used to connect to the headphone body (100).

2. The telescopic structure of the clip arm for the headphones according to claim 1, characterized in that: The telescopic seat (4) is provided with a first gear plate (47) and a second gear plate (43) spaced apart on the inner side. The first gear plate (47) and the second gear plate (43) are respectively provided with a gear slot (40) corresponding to each other. The gear slot (40) is an arc-shaped groove. The two adjacent gear slots (40) on the first gear plate (47) or the second gear plate (43) are connected by an arc-shaped protrusion. The cross section of the protrusion (31) is an outwardly protruding arc.

3. The telescopic structure of the clip arm for the headphones according to claim 1, characterized in that: The telescopic seat (4) has an inwardly extending groove (44) on the outer side of its lower end. A spring arm (45) is provided in the groove (44). The upper end of the swing seat (6) is pivotally connected to the groove (44), and the rear side of the upper end of the swing seat (6) is in contact with the spring arm (45).

4. The telescopic structure of the clip arm for the headphones according to claim 3, characterized in that: The upper rear side of the swing seat (6) is provided with a slope (62); the spring arm (45) is formed with an arc-shaped protrusion (451), and the arc surface of the arc-shaped protrusion (451) is in contact with the slope (62).

5. The telescopic structure of the clip arm for the headphones according to claim 3, characterized in that: The movable groove (44) is provided with pivot grooves (441) on both inner sides. The pivot (63) provided on both outer sides of the swing seat (6) is inserted into the pivot groove (441) through the opening (442) on the side of the pivot groove (441). The telescopic seat (4) is provided with a limit frame (46). The insert (461) of the limit frame (46) is also embedded in the opening (442) on the side of the pivot groove (441) to limit the pivot (63) in the pivot groove (441).

6. The telescopic structure of the clip arm for the headphones according to claim 5, characterized in that: The limiting frame (46) has two inserts (461), which spans the outside of the swing seat (6), and the two inserts (461) are simultaneously embedded in two pivot grooves (441) and locked by several second screws. The surface of the insert (461) that contacts the pivot (63) is an arc-shaped concave surface.

7. The telescopic structure of the clip arm for the headphones according to claim 6, characterized in that: The limiting frame (46) has outwardly protruding positioning parts (462) on both sides; the telescopic seat (4) has a positioning groove (401) that matches the positioning part (462), and the positioning part (462) is embedded and fixed in the positioning groove (401).

8. The telescopic structure of the clip arm for the headphones according to any one of claims 1-7, characterized in that: The clamping arm (1) is a metal sheet with elastic deformation capability; a plastic part (7) is also provided on the inner side of the clamping arm (1), and the end of the plastic part (7) is also snapped to the connecting seat (2); and a flexible pad (8) is also provided on the outside of the plastic part (7).

9. The telescopic structure of the clip arm for the headphones according to claim 8, characterized in that: A notch (71) is formed in the middle of the inner side of the plastic part (7), and a limiting hole (72) through the notch (71) is provided inward along the outer side of the plastic part (7); the flexible pad (8) is integrally formed in the notch (71) by flexible material, and is partially embedded in the limiting hole (72).

10. The telescopic structure of the clip arm for the headphones according to claim 8, characterized in that: The lower side of the end of the plastic part (7) is formed with a connecting buckle (73), and the upper end of the connecting seat (2) is provided with a buckle groove (22). The connecting buckle (73) is inserted into the buckle groove (22) and fixed. The connecting seat (2) is also provided with a limiting piece (23) at the opening of the buckle groove (22). The outer side of the limiting piece (23) is in contact with the inner side of the clamping arm (1).

Images