Earphone supporting shaft

Abstract

The utility model discloses an earphone support shaft, which aims to solve the technical problems that the earphone support shaft in the prior art cannot be folded or detached, is low in use convenience and easy to wear, and affects the service life of a headphone, and comprises a support arm and a sliding arm, the sliding arm is rotationally connected to the top end of the supporting arm, the two ends of the supporting arm are rotationally connected with connecting arms, the top end of the supporting arm is rotationally connected with the sliding arm through a rotating shaft, multiple sets of limiting grooves are formed in the inner side of the sliding arm, and clamping mechanisms are arranged on the outer sides of the limiting grooves; one end of the rotating shaft is fixedly connected with a positioning head, the other end of the rotating shaft is in threaded connection with a locking knob, a baffle ring is arranged on the outer side of the rotating shaft and located on the side, away from the positioning head, of the locking knob in a sleeving mode, and a positioning mechanism is installed in the rotating shaft and located on the side, away from the locking knob, of the baffle ring. According to the utility model, the use convenience and the service life of the headphone can be improved through the design.

Description

Technical Field

[0001] This utility model belongs to the field of headphone technology, specifically relating to a headphone support shaft. Background Technology

[0002] A pair of headphones consists of earcups, a headband, and a headband support. The earcups are the parts that cover the ears and are responsible for sound insulation and transmission. The headband is a crossbeam that connects the two earcups and serves to fix and support them. The headphone support is located between the headband and the earcups. The main function of the headphone support is to provide stable support and ensure that the headphones will not easily fall off or deform during use. It ensures that the various parts of the headphones (such as earcups, headband, etc.) maintain the correct position and shape, thereby providing a better wearing experience and comfort.

[0003] Currently, the existing headphone support shaft 001 is generally manufactured using either metal casting or plastic injection molding (see appendix). Figure 6 While the headband can extend and retract at the connection point during use, the earcups are still quite large and cannot be folded, making them inconvenient to carry in a bag. Additionally, the headphone support shaft slides to the headband via a curved section at its top. Adjusting the extension and retraction of the headband allows for adjustment of the distance between the two earcups to accommodate different head sizes. However, the frequent back-and-forth sliding between the headphone support shaft and the headband eventually causes severe internal wear, affecting the lifespan of the headphones.

[0004] Therefore, it is of great importance to design a headphone support shaft to solve the above-mentioned defects. Utility Model Content

[0005] (1) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an earphone support shaft, which aims to solve the technical problems of the existing earphone support shaft being non-foldable, having low ease of use, and being easily worn, thus affecting the service life of the headphones.

[0007] (2) Technical solution

[0008] To solve the above-mentioned technical problems, this utility model provides an earphone support shaft, which includes a support arm and a sliding arm. The sliding arm is rotatably connected to the top end of the support arm, and both ends of the support arm are rotatably connected to connecting arms. The top end of the support arm is rotatably connected to the sliding arm through a rotating shaft. Multiple sets of limiting grooves are provided on the inner side of the sliding arm, and a holding mechanism is provided on the outer side of the limiting grooves.

[0009] A positioning head is fixedly connected to one end of the rotating shaft, and a locking knob is threaded to the other end of the rotating shaft. A retaining ring is fitted on the outside of the rotating shaft, on the side of the locking knob away from the positioning head. A positioning mechanism is installed inside the rotating shaft, on the side of the retaining ring away from the locking knob.

[0010] When using the headphone support shaft of this technical solution, the shaft is inserted into the connection between the support arm and the sliding arm. Then, the locking knob is tightened to clamp and fix the connection between the support arm and the sliding arm with the positioning head, allowing the headphones to function normally. When carrying the headphones, loosening the locking knob allows the support arm to rotate, folding it inwards towards the sliding arm. After folding, the locking knob is tightened again to fix it, thus folding the two earcups of the headphones inwards towards the headband. This significantly reduces the size of the headphones for easier carrying. The positioning mechanism restricts the outer side of the retaining ring when operating the locking knob. The outer side is limited by a retaining ring to prevent the locking knob from falling off the shaft. When the sliding arm is extended and retracted after being connected to the headband, the locking mechanism is engaged in different limiting slots to restrict the adjusted sliding arm. The mounting feet are installed inside the headband of the headphones with screws. Under the action of the second spring, the locking ball head abuts into the inside of the limiting slot, thereby restricting the position of the sliding arm. When the sliding arm is extended and retracted, the locking ball head can reduce friction by rolling inside the connecting ball socket, thus restricting the sliding arm while reducing wear.

[0011] Preferably, the positioning mechanism includes two sets of positioning blocks symmetrically slidably connected inside the rotating shaft, and the two sets of positioning blocks are in contact with the surface of the retaining ring, and a first spring is movably installed inside the rotating shaft and between the two sets of positioning blocks.

[0012] Furthermore, a backstop block is fixedly connected to the top of the outer side of the sliding arm, and an marking groove is provided at the top of the inner side of the sliding arm.

[0013] Furthermore, the top of the connecting arm is rotatably connected to the support arm via a connecting shaft, and the bottom of the connecting arm is fixedly connected to an installation head.

[0014] Furthermore, multiple sets of limiting grooves are evenly distributed on the inner side of the sliding arm.

[0015] Furthermore, the holding mechanism includes a holding ball head movably installed on the outside of the limiting groove, a connecting ball socket installed on the outside of the holding ball head, a second spring fixedly connected to the outside of the connecting ball socket, and a mounting foot fixedly connected to the end of the second spring away from the connecting ball socket.

[0016] Furthermore, the retaining ball head is rotatably connected to the inside of the connecting ball socket, and the end of the connecting ball socket opposite to the mounting foot is fixedly connected to the inside of the second spring through an internal plug.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. The headphone support shaft of this utility model is designed with the cooperation of the support arm, the sliding arm and the rotating shaft. The support arm is folded inward towards the sliding arm, and after folding, the locking knob is tightened to fix it. This allows the two earcups of the headphones to be folded inward towards the headband, which greatly reduces the size of the headphones and makes them easier to carry, thereby improving the ease of use of the headphones.

[0020] 2. The headphone support shaft of this utility model uses a combination design of sliding arm, limiting groove and locking tooth mechanism. The locking mechanism is locked into different limiting grooves to restrict the adjusted sliding arm. The mounting foot is installed inside the headband of the headphone with screws. Under the action of the second spring, the locking ball head is pushed into the inside of the limiting groove, thereby restricting the position of the sliding arm. When the sliding arm is operated to extend or retract, the locking ball head can reduce friction by rolling on the inside of the connecting ball socket. This not only restricts the sliding arm but also reduces wear, thereby improving the service life of the headphone. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the outer structure of the headphone support shaft of this utility model;

[0022] Figure 2 This is a schematic diagram of the inner structure of the headphone support shaft of this utility model;

[0023] Figure 3 This is a schematic diagram of the rotating shaft structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the positioning mechanism of this utility model;

[0025] Figure 5 This is a schematic diagram of the card-holding mechanism of this utility model;

[0026] Figure 6 This is a schematic diagram of an existing headphone support shaft.

[0027] The labels in the attached diagram are as follows: 1. Support arm; 2. Sliding arm; 201. Anti-reverse block; 202. Marking groove; 3. Connecting arm; 301. Connecting shaft; 302. Mounting head; 4. Rotating shaft; 401. Positioning head; 402. Locking knob; 403. Retaining ring; 404. Positioning mechanism; 405. Positioning block; 406. First spring; 5. Limiting groove; 6. Holding mechanism; 601. Holding ball head; 602. Connecting ball socket; 603. Second spring; 604. Mounting foot; 605. Inner plug; 001. Existing headphone support shaft. Detailed Implementation

[0028] This specific embodiment is an earphone support shaft, the structural diagram of which is shown below. Figure 1-5 As shown, the headphone support shaft includes a support arm 1 and a sliding arm 2. The sliding arm 2 is rotatably connected to the top of the support arm 1. Both ends of the support arm 1 are rotatably connected to a connecting arm 3. The top of the support arm 1 is rotatably connected to the sliding arm 2 through a rotating shaft 4. Multiple sets of limiting grooves 5 are opened on the inner side of the sliding arm 2, and a holding mechanism 6 is provided on the outer side of the limiting grooves 5.

[0029] First, in this embodiment, the specific structure of the rotating shaft 4 is as follows:

[0030] One end of the rotating shaft 4 is fixedly connected to a positioning head 401, and the other end of the rotating shaft 4 is threadedly connected to a locking knob 402. A retaining ring 403 is fitted on the outer side of the rotating shaft 4, on the side of the locking knob 402 away from the positioning head 401. A positioning mechanism 404 is installed inside the rotating shaft 4, on the side of the retaining ring 403 away from the locking knob 402. The rotating shaft 4 is inserted into the connection between the support arm 1 and the sliding arm 2. Then, the locking knob 402 is tightened to clamp and fix the connection between the support arm 1 and the sliding arm 2 in conjunction with the positioning head 401, so that the headphones can be used normally. When carrying the headphones, the support arm 1 can be rotated after the locking knob 402 is loosened, and the support arm 1 is folded inward toward the sliding arm 2. After folding, the locking knob 402 is tightened again to fix it, thereby folding the two earcups of the headphones toward the inside of the headband. This greatly reduces the size of the headphones and makes them easier to carry, thus improving the ease of use of the headphones.

[0031] Furthermore, the positioning mechanism 404 includes two sets of positioning blocks 405 symmetrically slidably connected inside the rotating shaft 4, and the two sets of positioning blocks 405 are in contact with the surface of the retaining ring 403. A first spring 406 is movably installed inside the rotating shaft 4 and between the two sets of positioning blocks 405. Under the action of the first spring 406, the two sets of positioning blocks 405 are pushed out from inside the rotating shaft 4. The two sets of positioning blocks 405 restrict the outer side of the retaining ring 403. When the locking knob 402 is operated, the retaining ring 403 limits its outer side to prevent the locking knob 402 from being unscrewed off the rotating shaft 4 and falling off. At the same time, pressing the two sets of positioning blocks 405 into the rotating shaft 4 can also release the restriction on the retaining ring 403 and the locking knob 402, thereby enabling the rotating shaft 4 to be disassembled for easy disassembly and maintenance of the support arm 1 and the sliding arm 2.

[0032] Then, a retaining block 201 is fixedly connected to the top of the outer side of the sliding arm 2, and an marking groove 202 is opened at the top of the inner side of the sliding arm 2. When the headphone support shaft is in use, the sliding arm 2 is slidably connected to the inside of the headband of the headphone. The retaining block 201 prevents the sliding arm 2 from being completely pulled out of the headband. At the same time, when the headphone support shaft is assembled with the headband, the inside of the marking groove 202 can be marked with L or R to distinguish left and right.

[0033] Furthermore, the top end of the connecting arm 3 is rotatably connected to the support arm 1 via the connecting shaft 301, and the bottom end of the connecting arm 3 is fixedly connected to the mounting head 302. The bottom end of the connecting arm 3 is installed and connected to the earcup via the mounting head 302. The top end of the connecting shaft 301 can swing to a certain extent via the connecting shaft 301, so that the earcup can be adjusted to fit the outside of the user's head more closely during use, further improving the comfort of using the headphone support shaft.

[0034] Multiple sets of limiting grooves 5 are evenly distributed on the inner side of the sliding arm 2. When the sliding arm 2 is extended and adjusted after being connected to the head beam, the locking mechanism 6 is locked into different limiting grooves 5 to restrict the adjusted sliding arm 2.

[0035] Secondly, the holding mechanism 6 includes a holding ball head 601 movably installed on the outside of the limiting groove 5. A connecting ball socket 602 is installed on the outside of the holding ball head 601. A second spring 603 is fixedly connected to the outside of the connecting ball socket 602. A mounting foot 604 is fixedly connected to the end of the second spring 603 away from the connecting ball socket 602. The mounting foot 604 is installed inside the headband of the headphones by screws. Under the action of the second spring 603, the holding ball head 601 is pushed into the inside of the limiting groove 5, thereby limiting the position of the sliding arm 2. When the sliding arm 2 is extended or retracted, the holding ball head 601 can reduce friction by rolling inside the connecting ball socket 602, thereby limiting the sliding arm 2 while reducing wear, and thus improving the service life of the headphones.

[0036] Finally, the retaining ball head 601 is rotatably connected to the inside of the connecting ball socket 602. The end of the connecting ball socket 602 opposite to the mounting foot 604 is fixedly connected to the inside of the second spring 603 through the inner plug 605. The retaining ball head 601 can rotate flexibly inside the connecting ball socket 602, thereby reducing friction when the sliding arm 2 slides. At the same time, the inner plug 605 can ensure the connection effect between the two ends of the second spring 603 and the mounting foot 604 and the connecting ball socket 602.

[0037] When using the headphone support shaft of this technical solution, the rotating shaft 4 is inserted into the connection between the support arm 1 and the sliding arm 2. Then, the locking knob 402 is tightened in conjunction with the positioning head 401 to clamp and fix the connection between the support arm 1 and the sliding arm 2, allowing the headphones to be used normally. When carrying the headphones, the support arm 1 can be rotated after loosening the locking knob 402, folding the support arm 1 inward toward the sliding arm 2. After folding, the locking knob 402 is tightened again to fix it, thereby folding the two earcups of the headphones toward the inside of the headband, greatly reducing the size of the headphones for easy carrying. The positioning mechanism 404 restricts the outer side of the retaining ring 403. When operating the locking knob 402, the retaining ring 403 limits its outer side, preventing the locking knob 402 from falling off the rotating shaft. 4. When the sliding arm 2 is connected to the headband and adjusted for extension and retraction, the locking mechanism 6 is engaged in different limiting grooves 5 to restrict the adjusted sliding arm 2. The mounting foot 604 is installed inside the headband of the headphones with screws. Under the action of the second spring 603, the locking ball head 601 abuts into the limiting groove 5, thereby restricting the position of the sliding arm 2. When the sliding arm 2 is extended or retracted, the locking ball head 601 can reduce friction by rolling inside the connecting ball socket 602, so as to restrict the sliding arm 2 while reducing wear. The whole operation process is simple and convenient. Compared with the existing headphone support shaft, this utility model can improve the ease of use and service life of the headphones through design.

[0038] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An earphone support shaft, the earphone support shaft comprising a support arm (1) and a sliding arm (2); characterized in that, The sliding arm (2) is rotatably connected to the top of the support arm (1). Both ends of the support arm (1) are rotatably connected to the connecting arm (3). The top of the support arm (1) is rotatably connected to the sliding arm (2) through the rotating shaft (4). Multiple sets of limiting grooves (5) are opened on the inner side of the sliding arm (2). A clamping mechanism (6) is provided on the outer side of the limiting groove (5). One end of the rotating shaft (4) is fixedly connected to a positioning head (401), and the other end of the rotating shaft (4) is threadedly connected to a locking knob (402). A retaining ring (403) is sleeved on the outside of the rotating shaft (4) and on the side of the locking knob (402) away from the positioning head (401). A positioning mechanism (404) is installed inside the rotating shaft (4) and on the side of the retaining ring (403) away from the locking knob (402).

2. The headphone support shaft according to claim 1, characterized in that, The positioning mechanism (404) includes two sets of positioning blocks (405) symmetrically slidably connected inside the rotating shaft (4), and the two sets of positioning blocks (405) are in contact with the surface of the retaining ring (403). A first spring (406) is movably installed inside the rotating shaft (4) and between the two sets of positioning blocks (405).

3. The headphone support shaft according to claim 1, characterized in that, An anti-reverse block (201) is fixedly connected to the top of the outer side of the sliding arm (2), and an identification groove (202) is opened at the top of the inner side of the sliding arm (2).

4. The headphone support shaft according to claim 1, characterized in that, The top end of the connecting arm (3) is rotatably connected to the support arm (1) via a connecting shaft (301), and the bottom end of the connecting arm (3) is fixedly connected to an installation head (302).

5. The headphone support shaft according to claim 1, characterized in that, Multiple sets of the limiting grooves (5) are evenly distributed on the inner side of the sliding arm (2).

6. The headphone support shaft according to claim 1, characterized in that, The holding mechanism (6) includes a holding ball head (601) movably installed on the outside of the limiting groove (5). A connecting ball socket (602) is installed on the outside of the holding ball head (601). A second spring (603) is fixedly connected to the outside of the connecting ball socket (602). A mounting foot (604) is fixedly connected to the end of the second spring (603) away from the connecting ball socket (602).

7. The headphone support shaft according to claim 6, characterized in that, The holding ball head (601) is rotatably connected to the inside of the connecting ball socket (602), and the end of the connecting ball socket (602) opposite to the mounting foot (604) is fixedly connected to the inside of the second spring (603) through the inner plug (605).

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