Rotating connection mechanism and headphone

Abstract

The present application provides a rotating connection mechanism and a headset. The above-mentioned rotating connection mechanism includes a sliding arm, a first fastener, a second fastener and a connecting frame, the first fastener is connected to the sliding arm, the connecting frame is provided with a mounting hole, a portion of the first fastener and / or a portion of the second fastener is located in the mounting hole, the second fastener is adjustably connected to the first fastener, and the other portion of the second fastener and the sliding arm are respectively located on opposite sides of the connecting frame, so that the connecting frame is rotatably connected to the sliding arm. Since the second fastener is adjustably connected to the first fastener, the tightness of the connection between the connecting frame and the sliding arm can be adjusted, making it easier to control the tightness of the connection between the connecting frame and the sliding arm, thereby improving the sensitivity of the connecting frame during rotation. The connection frame is rotated relative to the sliding arm by the first fastener and the second fastener, which avoids the problem of powder falling at the connection, thereby improving the stability and smoothness of the rotation of the connection frame.

Description

Technical Field

[0001] The present invention relates to the technical field of headphones, and in particular to a rotating connection mechanism and a headphone. Background Art

[0002] A headset is a pair of headphones worn on the head. Generally, a headset includes a rotating connection mechanism and a speaker. The rotating connection mechanism includes a sliding arm and a connecting frame, wherein the sliding arm is worn on the user's head, and the connecting frame is also called an ear fork. The connecting frame is rotatably connected to one end of the sliding arm, and the earmuffs are installed on the connecting frame.

[0003] In the prior art, in order to enable the sliding arm and the connecting frame to be rotationally connected, the connecting frame includes an inner cover and an outer cover. When installing the rotation connection mechanism, one end of the sliding arm is inserted into the inner cover, and then the outer cover is snapped onto the inner cover, so that one end of the sliding arm is rotationally connected to the groove formed by the closure of the inner and outer covers. However, the tightness of the rotational connection of the connecting frame to the sliding arm is not adjustable, making it difficult to control the tightness of the rotational connection of the connecting frame to the sliding arm. At the same time, the connecting frame is more likely to get stuck during rotation, thereby reducing the flexibility of the connecting frame during rotation. Moreover, the sliding arm and the connecting frame are both plastic parts, which makes it easier for the connection between the sliding arm and the connecting frame to lose powder after rotation, thereby reducing the stability of the connection frame during rotation. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and to provide a rotation connection mechanism and a headset that are rotationally adjustable, highly flexible, and highly stable.

[0005] The object of the present invention is achieved through the following technical solutions:

[0006] A rotary connection mechanism, comprising:

[0007] Sliding arm;

[0008] a first fastener connected to the sliding arm;

[0009] a second fastener; and

[0010] The connecting frame is provided with a mounting hole, a portion of the first fastener and / or a portion of the second fastener is located in the mounting hole, the second fastener is adjustably connected to the first fastener, and the second fastener has a limiting portion, and the limiting portion and the sliding arm are respectively located on opposite sides of the connecting frame, so that the connecting frame can be rotatably connected to the sliding arm.

[0011] In one embodiment, the limiting portion and the sliding arm are respectively in contact with two opposite sides of the connecting frame.

[0012] In one embodiment, the rotation connection mechanism further includes a first isolation gasket, and opposite sides of the first isolation gasket are respectively in contact with the connecting frame and the sliding arm, so that the sliding arm is in contact with the connecting frame through the first isolation gasket.

[0013] In one embodiment, the connecting frame is further provided with a receiving groove, and the first isolation gasket is received in the receiving groove.

[0014] In one embodiment, the sliding arm is provided with a protruding abutment portion, and opposite sides of the first isolation gasket respectively abut against the connecting frame and the abutment portion, so that a gap exists between the sliding arm and the connecting frame.

[0015] In one embodiment, the rotation connection mechanism further includes a second isolation gasket, and opposite sides of the second isolation gasket are respectively in contact with the connecting frame and the limiting portion, so that the limiting portion is in contact with the connecting frame through the second isolation gasket.

[0016] In one embodiment, the connecting frame is provided with a drag reducing groove, the drag reducing groove is arranged opposite to a portion of the second isolation gasket, and the second isolation gasket is located outside the drag reducing groove.

[0017] In one embodiment, the first fastener is overmolded onto the sliding arm.

[0018] In one embodiment, a portion of the first fastener is located in the mounting hole, a portion of the second fastener is located in the mounting hole and is threadedly connected to the first fastener, and the limiting portion is protruded from the outside of the second fastener.

[0019] A headset comprises the rotating connection mechanism described in any one of the above embodiments.

[0020] Compared with the prior art, the present invention has at least the following advantages:

[0021] In the aforementioned rotational connection mechanism, since the second fastener is adjustably connected to the first fastener, the tightness of the connection between the connecting frame and the sliding arm can be adjusted. This makes it easier to control the tightness of the rotational connection between the connecting frame and the sliding arm, ensuring that the tightness of the rotational connection between the connecting frame and the sliding arm satisfies the user. This also prevents the connecting frame from becoming stuck when rotating relative to the sliding arm, thereby improving the sensitivity of the connecting frame during rotation. Furthermore, by enabling the connecting frame to rotate relative to the sliding arm through the first and second fasteners, the problem of powder shedding at the connection is avoided, the strength of the connection between the connecting frame and the sliding arm is improved, and the loosening of the connecting frame is suppressed, thereby improving the stability and smoothness of the connecting frame's rotation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 This is a structural diagram of a rotating connection mechanism according to an embodiment;

[0024] Figure 2 for Figure 1 A sectional view of the rotating connection mechanism shown;

[0025] Figure 3 for Figure 2 An enlarged schematic diagram of point B of the rotating connection mechanism shown;

[0026] Figure 4 A cross-sectional view of a partial structure of a rotating connection mechanism according to another embodiment. DETAILED DESCRIPTION

[0027] To facilitate understanding of the present invention, the present invention will be described more fully below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present disclosure.

[0028] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of the present invention are for the purpose of describing specific embodiments only and are not intended to limit the present invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] The present application provides a rotating connection mechanism, including a sliding arm, a first fastener, a second fastener and a connecting frame, wherein the first fastener is connected to the sliding arm, the connecting frame is provided with a mounting hole, a portion of the first fastener and / or a portion of the second fastener is located in the mounting hole, the second fastener is adjustably connected to the first fastener, the second fastener has a limiting portion, the limiting portion and the sliding arm are respectively located on opposite sides of the connecting frame, so that the connecting frame is rotatably connected to the sliding arm.

[0031] In the aforementioned rotational connection mechanism, since the second fastener is adjustably connected to the first fastener, the tightness of the connection between the connecting frame and the sliding arm can be adjusted. This makes it easier to control the tightness of the rotational connection between the connecting frame and the sliding arm, ensuring that the tightness of the rotational connection between the connecting frame and the sliding arm satisfies the user. This also prevents the connecting frame from becoming stuck when rotating relative to the sliding arm, thereby improving the sensitivity of the connecting frame during rotation. Furthermore, by enabling the connecting frame to rotate relative to the sliding arm through the first and second fasteners, the problem of powder shedding at the connection is avoided, the strength of the connection between the connecting frame and the sliding arm is improved, and the loosening of the connecting frame is suppressed, thereby improving the stability and smoothness of the connecting frame's rotation.

[0032] To better understand the technical solutions and beneficial effects of the present application, the present application is further described in detail below with reference to specific embodiments:

[0033] like Figures 1 to 4 As shown, a rotating connection mechanism 10 of an embodiment includes a sliding arm 100, a first fastener 200, a second fastener 300 and a connecting frame 400, wherein the first fastener 200 is connected to the sliding arm 100, and the connecting frame 400 is provided with a mounting hole 410, wherein a portion of the first fastener 200 and / or a portion of the second fastener 300 is located in the mounting hole 410, and the second fastener 300 is adjustably connected to the first fastener 200, and the second fastener 300 has a limiting portion 310, and the limiting portion 310 and the sliding arm 100 are respectively located on opposite sides of the connecting frame 400, so that the connecting frame 400 is rotatably connected to the sliding arm 100.

[0034] In this embodiment, the sliding arm 100 is designed to be worn on a user's head. The first fastener 200 is connected to the sliding arm 100 so that the first fastener 200 protrudes from the sliding arm 100. The connecting frame 400 defines a mounting hole 410. Portions of the first fastener 200 and portions of the second fastener 300 are both located within the mounting hole 410, and the first fastener 200 and the second fastener 300 are adjustably connected within the mounting hole 410. Alternatively, the first fastener 200 is inserted through the mounting hole 410, and the portion of the first fastener 200 extending from the mounting hole 410 is adjustably connected to the second fastener 300. Alternatively, the second fastener 300 is inserted through the mounting hole 410, and the portion of the second fastener 300 extending from the mounting hole 410 is adjustably connected to the first fastener 200. The second fastener 300 has a stopper 310. The stopper 310 and the sliding arm 100 are located on opposite sides of the connecting frame 400, respectively, so that the connecting frame 400 is rotatably connected to the sliding arm 100. The connecting frame 400 is also used to connect to the earmuff. The earmuff can be rotated by rotating the connecting frame 400 so that the earmuff can adapt to the user's ear.

[0035] In the aforementioned rotating connection mechanism 10, since the second fastener 300 is adjustably connected to the first fastener 200, the tightness of the connection between the connecting frame 400 and the sliding arm 100 can be adjusted. This makes it easier to control the tightness of the rotational connection between the connecting frame 400 and the sliding arm 100, ensuring that the tightness of the rotational connection between the connecting frame 400 and the sliding arm 100 satisfies the user. This also prevents the connecting frame 400 from becoming stuck when rotating relative to the sliding arm 100, thereby improving the sensitivity of the connecting frame 400 during rotation. Furthermore, by enabling the connecting frame 400 to rotate relative to the sliding arm 100 through the first fastener 200 and the second fastener 300, the problem of powder falling off at the connection is avoided, the strength of the connection between the connecting frame 400 and the sliding arm 100 is improved, and the loosening of the connecting frame 400 is suppressed, thereby improving the stability and smoothness of the rotation of the connecting frame 400.

[0036] like Figure 3 and Figure 4 As shown, in one embodiment, the limiting portion 310 and the sliding arm 100 are respectively abutted against the opposite sides of the connecting frame 400, thereby improving the stability of the connecting frame 400 in rotationally connecting to the sliding arm 100, and specifically suppressing the shaking problem of the connecting frame 400 when rotating relative to the sliding arm 100, so that the rotation stability of the connecting frame 400 is higher, and at the same time, it avoids the connecting frame 400 from being severely worn with the sliding arm 100 due to the shaking problem, thereby avoiding the gap between the connecting frame 400 and the sliding arm 100 from increasing at a faster rate, thereby improving the service life of the rotating connection mechanism 10.

[0037] like Figure 3 and Figure 4As shown, the rotation connection mechanism 10 further includes a first isolation gasket 500, and opposite sides of the first isolation gasket 500 are respectively in contact with the connection frame 400 and the sliding arm 100, so that the sliding arm 100 is in contact with the connection frame 400 through the first isolation gasket 500. In this embodiment, the opposite sides of the first isolation gasket 500 are respectively located on the connection frame 400 and the sliding arm 100, and the opposite sides of the first isolation gasket 500 are respectively in contact with the connection frame 400 and the sliding arm 100, so that the first isolation gasket 500 isolates the contact between the connection frame 400 and the sliding arm 100, thereby suppressing the problem of powder loss caused by friction between the connection frame 400 and the sliding arm 100, and suppressing the increase in the gap between the connection frame 400 and the sliding arm 100, thereby preventing the connection frame 400 from rotating under the action of non-human external forces, thereby improving the position stability of the connection frame 400 and increasing the service life of the rotation connection mechanism 10. It can be understood that the first isolation gasket 500 is a wear-resistant structure, and the first isolation gasket 500 can be a POM gasket, a silicone gasket, a rubber gasket or other existing wear-resistant gaskets.

[0038] like Figure 3 and Figure 4 As shown, further, the connecting frame 400 is also provided with a receiving groove 420, and the first isolation gasket 500 is received in the receiving groove 420 to improve the position stability of the first isolation gasket 500, thereby preventing the first isolation gasket 500 from deviating from the predetermined position, and further ensuring that the first isolation gasket 500 isolates the abutment between the connecting frame 400 and the sliding arm 100, thereby improving the stability of the connection frame 400 relative to the sliding arm 100, and at the same time improving the service life of the rotating connection mechanism 10.

[0039] like Figure 3 and Figure 4 As shown, further, the sliding arm 100 is provided with a protruding abutment portion 101, and the opposite sides of the first isolation gasket 500 are respectively abutted against the connecting frame 400 and the abutment portion 101, so that the opposite sides of the first isolation gasket 500 are respectively abutted against the connecting frame 400 and the sliding arm 100, thereby creating a gap between the sliding arm 100 and the connecting frame 400, that is, a gap is created between the portion of the sliding arm 100 that is not abutted against the first isolation gasket 500 and the connecting frame 400, thereby reducing the resistance of the connecting frame 400 during rotation, thereby improving the flexibility of the connecting frame 400 in rotating relative to the sliding arm 100.

[0040] like Figure 3 and Figure 4As shown, in one embodiment, the rotation connection mechanism 10 further includes a second isolation gasket 600, and opposite sides of the second isolation gasket 600 respectively abut against the connecting frame 400 and the limiting portion 310, so that the limiting portion 310 abuts against the connecting frame 400 through the second isolation gasket 600. In this embodiment, the second isolation gasket 600 isolates the abutment between the connecting frame 400 and the limiting portion 310, so that the limiting portion 310 abuts against the connecting frame 400 through the second isolation gasket 600, thereby avoiding direct contact between the limiting portion 310 and the connecting frame 400, thereby avoiding the problem of powder loss due to friction between the limiting portion 310 and the connecting frame 400, thereby avoiding a large gap between the connecting frame 400 and the limiting portion 310, and preventing the connecting frame 400 from rotating under the action of non-human external forces, thereby improving the position stability of the connecting frame 400 and simultaneously improving the service life of the rotation connection mechanism 10.

[0041] like Figure 3 and Figure 4 As shown, further, the connecting frame 400 is provided with a drag reducing groove 430, and the drag reducing groove 430 is arranged opposite to a portion of the second isolation gasket 600. The second isolation gasket 600 is located outside the drag reducing groove 430, so that a portion of the second isolation gasket 600 is located in contact with the connecting frame 400, thereby reducing the abutment area between the second isolation gasket 600 and the connecting frame 400, thereby reducing the rotational resistance of the connecting frame 400 and improving the smoothness of the rotation of the connecting frame 400, so that the rotational resistance of the connecting frame 400 meets the use requirements. It can be understood that by changing the size of the drag reducing groove 430, the abutment area between the second isolation gasket 600 and the connecting frame 400 can be changed, thereby making the rotational resistance of the connecting frame 400 meet the use requirements.

[0042] like Figure 3 and Figure 4 As shown, in one embodiment, the first fastener 200 is overmolded on the sliding arm 100. In this embodiment, the first fastener 200 is fixed to one end of the sliding arm 100 by in-mold injection, so that the first fastener 200 is more firmly connected to the sliding arm 100, thereby improving the strength of the connection between the first fastener 200 and the second fastener 300, thereby preventing the connection of the connecting frame 400 to the sliding arm 100 from being loosened, thereby improving the rotational stability of the connecting frame 400.

[0043] like Figure 3 and Figure 4As shown, in one embodiment, the first fastener 200 is threadedly connected to the second fastener 300, allowing for an adjustable connection between the first fastener 200 and the second fastener 300. Furthermore, a portion of the first fastener 200 is positioned within the mounting hole 410, while a portion of the second fastener 300 is positioned within the mounting hole 410 and threadedly connected to the first fastener 200. The stopper 310 protrudes from the outside of the second fastener 300. In this embodiment, a portion of the first fastener 200 is connected to the sliding arm 100, while another portion of the first fastener 200 is positioned within the mounting hole 410, allowing the sliding arm 100 to be positioned on one side of the connecting frame 400. A portion of the second fastener 300 is positioned within the mounting hole 410 and is threadedly connected to the first fastener 200. A stopper 310 is protruded from the outer side of the second fastener 300. The stopper 310 is located on the other side of the connecting frame 400, that is, the sliding arm 100 and the stopper 310 are located on opposite sides of the connecting frame 400, so that the connecting frame 400 can be rotatably connected to the sliding arm 100. It will be understood that the second fastener 300 can be a screw, bolt, machine screw, or other existing fastener. Of course, in another embodiment, the first fastener 200 is inserted into the mounting hole 410, and the portion of the first fastener 200 extending from the mounting hole 410 is threadedly connected to the second fastener 300. In yet another embodiment, the second fastener 300 is inserted into the mounting hole 410, and the end of the second fastener 300 extending from the mounting hole 410 is threadedly connected to the first fastener 200.

[0044] It is understood that as the number of rotations of the connecting frame 400 increases, the first fastener 200 and the second fastener 300 will move relative to each other, resulting in a larger gap between the connecting frame 400 and the sliding arm 100, which in turn causes the connecting frame 400 to become loose, resulting in poor rotational stability of the connecting frame 400. The poor rotational stability of the connecting frame 400 will cause the connecting frame 400 to rotate when subjected to non-human external forces, and will also cause the connecting frame 400 to wobble during rotation, exacerbating the wear of the connecting frame 400 and the sliding arm 100, further increasing the gap between the connecting frame 400 and the sliding arm 100, and further worsening the rotational stability of the connecting frame 400. In addition, since the structure of the rotating connection mechanism 10 is relatively compact, the lengths of the first fastener 200 and the second fastener 300 are relatively short. Therefore, after the first fastener 200 and the second fastener 300 move relative to each other to a certain extent, the first fastener 200 and the second fastener 300 will separate, thereby causing the connecting frame 400 to be separated from the sliding arm 100, and further making it impossible for the connecting frame 400 to be rotatably connected to the sliding arm 100.

[0045] Therefore, if Figure 4As shown, in one embodiment, the rotation connection mechanism 10 further includes an anti-loosening fastener 700, which is disposed inside the sliding arm 100, and a gap is formed between the anti-loosening fastener 700 and the first fastener 200. The anti-loosening fastener 700 defines an anti-loosening threaded hole 710, and the first fastener 200 defines an adjustment threaded hole 201, which is correspondingly connected to the anti-loosening threaded hole 710. The second fastener 300 is sequentially disposed through the adjustment threaded hole 201 and the anti-loosening threaded hole 710, and the second fastener 300 is threadedly connected to the first fastener 200 and the anti-loosening fastener 700, respectively. In this embodiment, after the first fastener 200 and the second fastener 300 move relative to each other to a certain extent, the anti-loosening fastener 700 abuts against the first fastener 200, preventing the first fastener 200 and the second fastener 300 from continuing to move relative to each other, avoiding a large gap between the connecting frame 400 and the sliding arm 100 bracket, so that the rotation of the connecting frame 400 remains in a stable state, and at the same time avoids the situation where the first fastener 200 and the second fastener 300 are separated, thereby avoiding the problem of the connecting frame 400 being separated from the sliding arm 100, thereby ensuring that the connecting frame 400 is rotatably connected to the sliding arm 100.

[0046] like Figure 4 As shown, further, there is a gap between the side of the anti-loosening fastener 700 facing away from the first fastener 200 and the inner wall of the sliding arm 100, so that there is a gap on the side of the anti-loosening fastener 700 adjacent to the first fastener 200, and there is also a gap on the side of the anti-loosening fastener 700 facing away from the first fastener 200, so that the second fastener 300 has space to move up and down relative to the first fastener 200, thereby making the first fastener 200 have a certain adjustable range, and thereby making the tightness of the connecting frame 400 connected to the sliding arm 100 have a certain adjustable range, thereby improving the adjustability of the connecting frame 400, and thereby making the tightness of the connecting frame 400 able to meet the needs of users with different needs.

[0047] like Figure 4 Furthermore, a fixing portion 210 is protruded from the outer side of the first fastener 200, and the first fastener 200 is overmolded on the sliding arm 100. Since the fixing portion 210 protrudes from the outer side of the first fastener 200, the connection strength between the first fastener 200 and the sliding arm 100 is improved.

[0048] It can be understood that since the anti-loosening fastener 700 and the second fastener 300 are threadedly connected, there is a gap between the anti-loosening fastener 700 and the second fastener 300. Therefore, after the anti-loosening fastener 700 abuts against the first fastener 200, the anti-loosening fastener 700 and the second fastener 300 will also move relative to each other, thereby reducing the anti-loosening effect of the anti-loosening fastener 700, that is, there is a larger gap between the connecting frame 400 and the sliding arm 100, which causes the connecting frame 400 to loosen.

[0049] In order to suppress the relative movement between the anti-loosening fastener 700 and the second fastener 300, as shown in FIG. Figure 4 As shown, further, the inner wall of the anti-loosening screw hole 710 is coated with an elastic layer, and the second fastener 300 is threadedly connected to the anti-loosening fastener 700 via the elastic layer. In this embodiment, the elastic layer abuts the inner wall of the anti-loosening screw hole 710 and the second fastener 300, respectively, so that the second fastener 300 is threadedly connected to the anti-loosening fastener 700 via the elastic layer. In this way, the elastic layer blocks the gap between the second fastener 300 and the anti-loosening screw hole 710, inhibiting relative movement between the second fastener 300 and the anti-loosening fastener 700, thereby ensuring the anti-loosening effect of the anti-loosening fastener 700, namely, avoiding a large gap between the connecting frame 400 and the sliding arm 100, and further improving the rotational stability of the connecting frame 400. It is understood that the elastic layer may be a silicone layer, a rubber layer, or other existing elastic layer.

[0050] It is understood that when the first isolation gasket 500 and the second isolation gasket 600 are separated and damaged, they need to be replaced. In this case, the first fastener 200 and the second fastener 300 need to be separated first to separate the connecting frame 400 and the sliding arm 100. However, because the anti-loosening fastener 700 blocks the relative movement of the first fastener 200 and the second fastener 300, the first fastener 200 and the second fastener 300 cannot be separated.

[0051] In order to facilitate the replacement of the first isolation pad 500 and the second isolation pad 600, Figure 4As shown, in one embodiment, the sliding arm 100 includes a connecting portion 110 and a sliding portion 120. There are two sliding portions 120, each of which has a receiving slot. The two sliding portions 120 are detachably connected so that the receiving slots of the two sliding portions 120 together form an embedding slot 121, and a portion of the anti-loosening fastener 700 is embedded in the embedding slot 121. The first fastener 200 is covered and connected to the connecting portion 110. The two sliding portions 120 are both connected to the connecting portion 110 so that the anti-loosening threaded hole 710 of the anti-loosening fastener 700 is correspondingly connected to the adjustment threaded hole 201 of the first fastener 200, while a gap is formed between the anti-loosening fastener 700 and the first fastener 200. In this embodiment, when replacing the first isolation gasket 500 and the second isolation gasket 600, first separate the two sliding parts 120 from the connecting part 110, then separate the two sliding parts 120 so that the anti-loosening fastener 700 is exposed to the outside, and then unscrew the anti-loosening fastener 700 from the second fastener 300, so that the anti-loosening fastener 700 can be detachably connected to the first fastener 200, thereby making the first fastener 200 and the second fastener 300 separable, and thereby making the first isolation gasket 500 and the second isolation gasket 600 replaceable.

[0052] like Figure 4 As shown, further, the two sliding parts 120 are interlocked so that the two sliding parts 120 are closed to form an inlay groove 121, that is, the receiving grooves of the two sliding parts 120 jointly form the inlay groove 121. In this embodiment, one sliding part 120 is provided with a first interlocking body, and the other sliding part 120 is provided with a second interlocking body. The first interlocking body and the second interlocking body are interlocked, so that the two sliding parts 120 are connected, and then the receiving grooves of the two sliding parts 120 jointly form the inlay groove 121.

[0053] Furthermore, the sliding arm 100 also includes a mounting portion 130, which defines a connecting groove 131 and a position-avoiding hole 132. A snap-fitting body 133 protrudes from the inner wall of the connecting groove 131. A blocking body 122 protrudes from the outer side of the sliding portion 120, adjacent to the anti-loosening fastener 700. The sliding portion 120 passes through the position-avoiding hole 132, and the blocking body 122 is located within the connecting groove 131 and abuts against the mounting portion 130. The connecting portion 110 is located within the connecting groove 131 and abuts against the sliding portion 120. The connecting portion 110 defines a snap-fitting groove 111, and the snap-fitting body 133 snaps into the snap-fitting groove 111, thereby connecting the sliding portion 120 and the connecting portion 110.

[0054] The present application also provides a headset, comprising the rotating connection mechanism 10 described in any of the above embodiments. Figures 1 to 4As shown, further, the rotating connection mechanism 10 includes a sliding arm 100, a first fastener 200, a second fastener 300 and a connecting frame 400, the first fastener 200 is connected to the sliding arm 100, the connecting frame 400 is provided with a mounting hole 410, a portion of the first fastener 200 and / or a portion of the second fastener 300 is located in the mounting hole 410, the second fastener 300 can be adjustably connected to the first fastener 200, the second fastener 300 has a limiting portion 310, the limiting portion 310 and the sliding arm 100 are respectively located on opposite sides of the connecting frame 400, so that the connecting frame 400 is rotatably connected to the sliding arm 100.

[0055] In this embodiment, the sliding arm 100 is designed to be worn on a user's head. The first fastener 200 is connected to the sliding arm 100 so that the first fastener 200 protrudes from the sliding arm 100. The connecting frame 400 defines a mounting hole 410. Portions of the first fastener 200 and portions of the second fastener 300 are both located within the mounting hole 410, and the first fastener 200 and the second fastener 300 are adjustably connected within the mounting hole 410. Alternatively, the first fastener 200 is inserted through the mounting hole 410, and the portion of the first fastener 200 extending from the mounting hole 410 is adjustably connected to the second fastener 300. Alternatively, the second fastener 300 is inserted through the mounting hole 410, and the portion of the second fastener 300 extending from the mounting hole 410 is adjustably connected to the first fastener 200. The second fastener 300 has a stopper 310. The stopper 310 and the sliding arm 100 are located on opposite sides of the connecting frame 400, respectively, so that the connecting frame 400 is rotatably connected to the sliding arm 100. The connecting frame 400 is also used to connect to the earmuff. The earmuff can be rotated by rotating the connecting frame 400 so that the earmuff can adapt to the user's ear.

[0056] In the aforementioned headset, because the second fastener 300 is adjustably connected to the first fastener 200, the tightness of the connection between the connecting frame 400 and the sliding arm 100 can be adjusted. This makes it easier to control the tightness of the connection between the connecting frame 400 and the sliding arm 100, ensuring that the tightness of the connection between the connecting frame 400 and the sliding arm 100 satisfies the user. This also prevents the connecting frame 400 from becoming stuck when rotating relative to the sliding arm 100, thereby improving the rotational sensitivity of the connecting frame 400. Furthermore, by enabling the connecting frame 400 to rotate relative to the sliding arm 100 through the first fastener 200 and the second fastener 300, the problem of powder falling off at the connection is avoided, the strength of the connection between the connecting frame 400 and the sliding arm 100 is improved, and the loosening of the connecting frame 400 is thereby prevented, thereby improving the stability and smoothness of the rotation of the connecting frame 400.

[0057] Compared with the prior art, the present invention has at least the following advantages:

[0058] In the aforementioned rotating connection mechanism 10, since the second fastener 300 is adjustably connected to the first fastener 200, the tightness of the connection between the connecting frame 400 and the sliding arm 100 can be adjusted. This makes it easier to control the tightness of the rotational connection between the connecting frame 400 and the sliding arm 100, ensuring that the tightness of the rotational connection between the connecting frame 400 and the sliding arm 100 satisfies the user. This also prevents the connecting frame 400 from becoming stuck when rotating relative to the sliding arm 100, thereby improving the sensitivity of the connecting frame 400 during rotation. Furthermore, by enabling the connecting frame 400 to rotate relative to the sliding arm 100 through the first fastener 200 and the second fastener 300, the problem of powder falling off at the connection is avoided, the strength of the connection between the connecting frame 400 and the sliding arm 100 is improved, and the loosening of the connecting frame 400 is suppressed, thereby improving the stability and smoothness of the rotation of the connecting frame 400.

[0059] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A rotary connection mechanism, characterized in that: include: The sliding arm includes a connecting portion, two sliding portions, and a mounting portion. The two sliding portions are connected to the connecting portion. The two sliding portions are detachably connected. Each sliding portion has a receiving groove, so that the receiving grooves of the two sliding portions together form an embedding groove. The two sliding portions are interlocked. a first fastener connected to the connecting portion; a second fastener; A connecting frame having a mounting hole, wherein a portion of the first fastener and / or a portion of the second fastener is located in the mounting hole, the second fastener is adjustably connected to the first fastener, and the second fastener has a limiting portion, wherein the limiting portion and the connecting portion are respectively located on opposite sides of the connecting frame so that the connecting frame is rotatably connected to the connecting portion, and the limiting portion and the connecting portion respectively abut against opposite sides of the connecting frame; a first isolation gasket, wherein two opposite sides of the first isolation gasket respectively abut against the connecting frame and the connecting portion, so that the connecting portion abuts against the connecting frame through the first isolation gasket; a second isolation gasket, wherein opposite sides of the second isolation gasket are respectively in contact with the connecting frame and the limiting portion, so that the limiting portion is in contact with the connecting frame through the second isolation gasket; an anti-loosening fastener disposed in the embedding groove, with a gap between the anti-loosening fastener and the first fastener, the anti-loosening fastener having an anti-loosening screw hole, the first fastener having an adjustment threaded hole, the adjustment threaded hole correspondingly communicating with the anti-loosening screw hole, the second fastener sequentially passing through the adjustment threaded hole and the anti-loosening screw hole, and the second fastener being threadedly connected to the first fastener and the anti-loosening fastener, respectively; Wherein, the inner wall of the anti-loosening screw hole is coated with an elastic layer, and the second fastener is threadedly connected to the anti-loosening fastener through the elastic layer; The mounting portion is provided with a connecting covering groove and an avoidance hole, and a snap-fitting body is protruded from the inner wall of the covering groove; a blocking body is protruded from the outer side of the sliding portion adjacent to the anti-loosening fastener, the sliding portion is passed through the avoidance hole, and the blocking body is located in the covering groove and abuts against the mounting portion; the connecting portion is located in the covering groove and abuts against the sliding portion, and the connecting portion is provided with a snap-fitting groove, and the snap-fitting body is snapped into the snap-fitting groove to connect the sliding portion and the connecting portion.

2. The rotary connection mechanism according to claim 1, characterized in that: The connecting frame is further provided with a receiving groove, and the first isolation gasket is received in the receiving groove.

3. The rotary connection mechanism according to claim 1, characterized in that: The sliding arm is provided with a protruding abutting portion, and two opposite sides of the first isolation gasket are respectively in abutment with the connecting frame and the abutting portion, so that a gap exists between the sliding arm and the connecting frame.

4. The rotary connection mechanism according to claim 1, characterized in that: The connecting frame is provided with a drag reducing groove, and the drag reducing groove is arranged opposite to a portion of the second isolation gasket, and the second isolation gasket is located outside the drag reducing groove.

5. The rotary connection mechanism according to claim 1, characterized in that: The first fastener is overmolded onto the sliding arm.

6. The rotary connection mechanism according to claim 1, characterized in that: Part of the first fastener is located in the mounting hole, part of the second fastener is located in the mounting hole and is threadedly connected to the first fastener, and the limiting portion is protruded from the outer side of the second fastener.

7. A headset, characterized in that: The invention comprises the rotating connection mechanism according to any one of claims 1 to 6.

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