Earphone ear fork sliding arm connecting structure and headphone

Abstract

The utility model discloses an earphone ear fork sliding arm connecting structure and a headphone, and relates to the technical field of headphone component connecting structures, the headphone ear fork sliding arm connecting structure comprises a connecting convex column which is arranged at the end part of a sliding arm, and the side wall of the connecting convex column is provided with an assembling groove; the connecting groove is formed in the end of the ear fork, an embedding groove is formed in the inner wall of the connecting groove, and when the sliding arm is connected with the ear fork, the assembling groove corresponds to the embedding groove; the clamping spring is buckled in the assembling groove, and the inner diameter of the assembling groove is smaller than that of the clamping spring. According to the earphone ear fork sliding arm connection structure and the headphone, after the connection of the sliding arm and the ear fork is optimized through the connection convex column and the connection groove, the effects of better connection integration of the sliding arm and the ear fork and better appearance integrity are achieved, the assembly groove and the embedding groove provide a deformation space for the clamp spring, and the clamping spring is prevented from being deformed. In the assembling process, the snap spring deforms and then restores to the original shape, and therefore assembling of the snap spring is completed. The number of connecting pieces is reduced, the structural integrity of the earphone is improved, and the manufacturing cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of headphone component connection structures, in particular to a headphone ear fork sliding arm connection structure and a headphone. Background Art

[0002] Head-mounted headphones usually include a headband, two ear forks and two ear cups, with speakers installed in the two ear cups. The headband is used to be worn on the top of the head to achieve the wearability of the entire headset. The two ear cups are respectively installed on the two ear forks, and the two ear forks are respectively installed on the two ends of the headband. The ear forks and the headband are usually connected by a rotating shaft so that the ear cups can rotate relative to the headband, so that the ear cups can adjust their angles to accommodate the ears and achieve sound insulation and noise reduction.

[0003] Chinese patent CN 202221070753.6 discloses an ear fork assembly and a headset, comprising an ear fork, a rotating shaft and a limiting member. The ear fork is provided with a connecting hole; one end of the rotating shaft is inserted into the connecting hole, one end of the rotating shaft is in clearance with the connecting hole, and one end of the rotating shaft is provided with a first limiting surface; the ear fork can abut against the rotating shaft to limit the movement of the rotating shaft in the connecting hole along the first direction; the limiting member is detachably mounted on the ear fork.

[0004] The existing connection structure between the ear fork and the sliding arm usually adopts the reference document attached Figure 4 The limiting member is covered by the cover body, which affects the integrity of the appearance of the earphone, and the ear fork has many mold structures and connecting parts, which results in high manufacturing cost. Utility Model Content

[0005] The utility model aims to at least solve the technical problem in the prior art that "the existing limiter is covered by a cover body, which affects the integrity of the earphone appearance, and the ear fork mold opening structure and connection parts are many, and the manufacturing cost is high". To this end, the utility model proposes an earphone ear fork sliding arm connection structure, which has better integration between the ear fork and the sliding arm, better appearance integrity, reduces the number of connecting parts, and reduces manufacturing costs.

[0006] According to some embodiments of the present invention, the earphone ear fork sliding arm connection structure is applied to the connection between the ear fork and the sliding arm; it includes:

[0007] A connecting boss is arranged at the end of the sliding arm, and a side wall of the connecting boss is provided with an assembly groove;

[0008] A connecting groove is provided at the end of the ear fork, and an engaging groove is provided on the inner wall of the connecting groove. When the sliding arm and the ear fork are connected, the assembly groove and the engaging groove correspond to each other;

[0009] The retaining ring is buckled in the assembly groove, the inner diameter of the assembly groove is smaller than the inner diameter of the retaining ring, and when the connecting boss and the connecting groove are connected, the retaining ring is located between the assembly groove and the engaging groove to prevent the sliding arm and the ear fork from axially separating.

[0010] According to some embodiments of the present utility model, when the connecting boss and the connecting groove are buckled, the retaining spring is located at the connection between the assembly groove and the fitting groove.

[0011] According to some embodiments of the utility model, a limiting boss is provided on the top of the connecting boss, and a limiting groove is provided on the bottom of the connecting groove. When the connecting boss and the connecting groove are buckled, the limiting boss rotates in the limiting groove to limit the rotation angle of the ear fork.

[0012] According to some embodiments of the present invention, the slotting angle of the limiting slot is greater than 90°.

[0013] According to some embodiments of the utility model, a damping groove is provided on the side wall of the connecting boss, and a damping ring is sleeved in the damping groove. When the connecting boss and the connecting groove are buckled, the damping ring is deformed and fits with the inner wall of the connecting groove to provide damping when the ear fork rotates.

[0014] According to some embodiments of the present invention, the cross section of the damping groove is semicircular.

[0015] According to some embodiments of the utility model, a guide groove is provided on the top inner circle of the connecting groove, and the guide groove is used to guide the deformation of the retaining spring.

[0016] According to some embodiments of the present invention, the guide angle formed by the guide groove surface and the end surface of the connecting groove is 60° to 70°.

[0017] According to some embodiments of the utility model, a wire threading channel is hollowed out in the middle of the connecting boss and the connecting groove, and when the sliding arm and the ear fork are connected, the cable in the sliding arm is connected to the earphone unit through the wire threading channel.

[0018] Headphones according to some embodiments of the present invention include the headphone ear fork sliding arm connection structure described above.

[0019] According to some embodiments of the present invention, the earphone ear fork sliding arm connection structure and the headphone have at least the following beneficial effects: after the connection between the sliding arm and the ear fork is optimized by the connection boss and the connection groove, the connection between the sliding arm and the ear fork is better integrated and has a better appearance integrity; the assembly groove and the fitting groove provide deformation space for the clip spring, so that the clip spring is deformed first and then restored to its original state during the assembly process, thereby completing the assembly of the clip spring. The number of connectors is reduced, the structural integrity of the earphone is improved, and the manufacturing cost is reduced.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 This is an exploded schematic diagram of the headphone ear fork sliding arm connection structure according to an embodiment of the utility model;

[0023] Figure 2 It is a partial cross-sectional view of the headphone ear fork sliding arm connection structure of the embodiment of the utility model;

[0024] Figure 3 It is a schematic diagram of the ear fork structure of the earphone ear fork sliding arm connection structure according to the embodiment of the utility model;

[0025] Figure 4 The present invention is a schematic diagram of the sliding arm structure of the earphone ear fork sliding arm connection structure according to an embodiment of the present invention.

[0026] Reference numerals:

[0027] Sliding arm 100, connecting boss 110, assembly groove 111, limiting boss 112, damping groove 113,

[0028] Ear fork 200, connecting groove 210, fitting groove 211, limiting groove 212, guide groove 213,

[0029] The retaining spring 310 , the damping ring 320 , and the threading channel 330 . DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, top, bottom, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference below Figure 1-Figure 4 The invention describes an earphone ear fork sliding arm connection structure and a headphone according to an embodiment of the utility model.

[0035] like Figure 1-Figure 4 As shown, the headphone ear fork sliding arm connection structure is applied to the connection between the ear fork 200 and the sliding arm 100, and includes a connection boss 110, a connection groove 210, and a retaining spring 310 for limiting the axial displacement of the connection boss 110 and the connection groove 210. Specifically, the connection boss 110 is provided at the end of the sliding arm 100, and the side wall of the connection boss 110 is provided with an assembly groove 111. The connection groove 210 is provided at the end of the ear fork 200, and the inner wall of the connection groove 210 is provided with an engaging groove 211.

[0036] When the sliding arm 100 and the ear fork 200 are connected, the assembly groove 111 and the fitting groove 211 correspond to each other, that is, the assembly groove 111 and the fitting groove 211 are at the same height, and the assembly groove 111 and the fitting groove 211 are closed to form a deformation space.

[0037] The snap ring 310 is buckled in the assembly groove 111, and the inner diameter of the assembly groove 111 is smaller than the inner diameter of the snap ring 310. When the connecting boss 110 and the connecting groove 210 are connected, the snap ring 310 is located between the assembly groove 111 and the interlocking groove 211, and is used to prevent the sliding arm 100 and the ear fork 200 from axially separating. That is, after the sliding arm 100 and the ear fork 200 are buckled, the snap ring 310 is located in the deformation space. When the sliding arm 100 and the ear fork 200 are axially displaced, the assembly groove 111 and the interlocking groove 211 have a tendency to be dislocated and separated. At this time, since the snap ring 310 is located in the assembly groove 111 and the interlocking groove 211, the assembly groove 111 and the interlocking groove 211 are prevented from being dislocated, thereby achieving the effect of preventing the ear fork 200 and the sliding arm 100 from axially sliding, and realizing the connection between the ear fork 200 and the sliding arm 100.

[0038] In order to place the retaining spring 310 in the connection between the existing ear fork 200 and the slide arm 100, a hole is usually opened in the side wall of the ear fork 200, and the retaining spring 310 is inserted into the connection between the ear fork 200 and the slide arm 100 from the opening. This will result in a gap or color difference between the opening and the cover, resulting in poor integrity in appearance. In addition, the opening of the side wall of the ear fork 200 will easily affect the structural strength of the ear fork 200, reducing the torsional strength of the ear fork 200.

[0039] The headphone ear fork sliding arm connection structure of the utility model utilizes the deformation ability of the circlip 310, increases the groove depth of the assembly groove 111, and enables the circlip 310 to shrink and deform into the assembly groove 111. When the connection boss 110 and the connection groove 210 are buckled, the circlip 310 is squeezed by the inner wall of the connection groove 210 to shrink inward, so that the circlip 310 is stored in the assembly groove 111. When the assembly groove 111 and the fitting groove 211 are aligned, the external force on the circlip 310 disappears and the circlip 310 returns to its original state, thereby being stuck at the connection between the assembly groove 111 and the fitting groove 211. After the ear fork 200 and the sliding arm 100 are connected, the appearance is better integrated, no holes are required, the structural strength is higher, and the mold production of the connection parts is reduced, thereby reducing the production cost.

[0040] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, when the connecting boss 110 and the connecting groove 210 are buckled, the clamping spring 310 is located at the connection between the assembly groove 111 and the interlocking groove 211. Specifically, when the clamping spring 310 is buckled on the assembly groove 111 and is in the initial state, a certain space is spaced between the clamping spring 310 and the assembly groove 111, and this space is reserved for the deformation of the clamping spring 310. When the clamping spring 310 is squeezed by an external force, the clamping spring 310 shrinks into the assembly groove 111, which facilitates the sliding of the connecting boss 110 into the connecting groove 210.

[0041] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, a limiting boss 112 is provided on the top of the connecting boss 110 , and a limiting groove 212 is provided on the bottom of the connecting groove 210 . When the connecting boss 110 and the connecting groove 210 are buckled together, the limiting boss 112 rotates in the limiting groove 212 to limit the rotation angle of the ear fork 200 .

[0042] Specifically, the limiting boss 112 is in the shape of a fan-shaped step, and the width of the limiting groove 212 is also in the shape of a fan. When the connecting boss 110 rotates in the connecting groove 210, the limiting boss 112 slides in the limiting groove 212. When the limiting boss 112 touches the side wall of the limiting groove 212, the connecting boss 110 stops rotating, and the adjustment angle between the slide groove and the ear fork 200 is limited by this structure.

[0043] In some embodiments of the present invention, Figure 3 As shown, the slotting angle of the limit slot 212 is greater than 90°. Specifically, the slotting angle of the limit slot 212 determines the adjustment angle of the ear fork 200 and the earphone unit rotating around the slide arm 100. The slotting angle of the limit slot 212 is set according to actual conditions during the production process.

[0044] In some embodiments of the present invention, Figure 1 , Figure 2 and Figure 4 As shown, the side wall of the connecting boss 110 is provided with a damping groove 113, and a damping ring 320 is sleeved in the damping groove 113. When the connecting boss 110 and the connecting groove 210 are buckled, the damping ring 320 is deformed and fits with the inner wall of the connecting groove 210 to provide damping when the ear fork 200 rotates.

[0045] Specifically, the damping ring 320 is made of rubber material, and the stress generated by the deformation of the damping ring 320 causes the connecting protrusion 110 and the connecting groove 210 to slide and generate a damping feeling.

[0046] In some embodiments of the present invention, Figure 2 As shown, the cross section of the damping groove 113 is semicircular. Specifically, in order to achieve a better deformation effect of the damping ring 320, the groove depth of the damping groove 113 accounts for half of the diameter of the damping ring 320, so that the damping ring 320 can be deformed better.

[0047] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, the top inner circle of the connecting groove 210 is provided with a guide groove 213, and the guide groove 213 is used to guide the deformation of the clamping spring 310. Specifically, when the end face of the clamping spring 310 contacts the inclined surface of the guide groove 213, the clamping spring 310 is subjected to a horizontal force component so that the clamping spring 310 shrinks into the assembly groove 111.

[0048] In a further embodiment, Figure 2 As shown, the guide angle formed by the surface of the guide groove 213 and the end surface of the connecting groove 210 is 60° to 70°. In order to prevent the retaining spring 310 from being separated from the assembly groove 111, the inclination of the guide angle should not be too small. When the guide angle is too small, the vertical component force on the retaining spring 310 will easily cause the retaining spring 310 to be separated from the assembly groove 111.

[0049] In some embodiments of the present invention, Figure 2-Figure 4 As shown, the middle of the connecting protrusion 110 and the connecting groove 210 is hollowed out to form a threading channel 330. When the sliding arm 100 and the ear fork 200 are connected, the cable in the sliding arm 100 is connected to the earphone unit through the threading channel 330. Specifically, the cables of the two earphone units pass through the threading channel 330 of the ear fork 200 and then enter the threading channel 330 of the sliding arm 100 and are connected, so that the cables are not exposed and the overall appearance of the earphone is more consistent.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An earphone ear fork sliding arm connection structure, applied to the connection between the ear fork (200) and the sliding arm (100); characterized in that: include: A connecting boss (110) is arranged at the end of the sliding arm (100), and a side wall of the connecting boss (110) is provided with an assembly groove (111); A connecting groove (210) is arranged at the end of the ear fork (200), and an inner wall of the connecting groove (210) is provided with an engaging groove (211), and when the sliding arm (100) and the ear fork (200) are connected, the assembly groove (111) and the engaging groove (211) correspond to each other; The retaining spring (310) is buckled into the assembly groove (111), and the inner diameter of the assembly groove (111) is smaller than the inner diameter of the retaining spring (310). When the connecting boss (110) and the connecting groove (210) are connected, the retaining spring (310) is located between the assembly groove (111) and the engaging groove (211), so as to prevent the sliding arm (100) and the ear fork (200) from being axially separated.

2. The headphone ear fork sliding arm connection structure according to claim 1, characterized in that: When the connecting protrusion (110) and the connecting groove (210) are buckled, the clamping spring (310) is located at the connection between the assembly groove (111) and the fitting groove (211).

3. The headphone ear fork sliding arm connection structure according to claim 1, characterized in that: A limiting boss (112) is arranged on the top of the connecting boss (110), and a limiting groove (212) is arranged on the bottom of the connecting groove (210); when the connecting boss (110) and the connecting groove (210) are engaged, the limiting boss (112) rotates in the limiting groove (212) to limit the rotation angle of the ear fork (200).

4. The headphone ear fork sliding arm connection structure according to claim 3, characterized in that: The slotting angle of the limiting slot (212) is greater than 90°.

5. The headphone ear fork sliding arm connection structure according to claim 1, characterized in that: The side wall of the connecting boss (110) is provided with a damping groove (113), and a damping ring (320) is sleeved in the damping groove (113); when the connecting boss (110) and the connecting groove (210) are buckled, the damping ring (320) deforms and fits with the inner wall of the connecting groove (210), so as to provide damping when the ear fork (200) rotates.

6. The headphone ear fork sliding arm connection structure according to claim 5, characterized in that: The cross section of the damping groove (113) is semicircular.

7. The headphone ear fork sliding arm connection structure according to claim 1, characterized in that: A guide groove (213) is provided on the top inner circle of the connecting groove (210), and the guide groove (213) is used to guide the deformation of the clamping spring (310).

8. The headphone ear fork sliding arm connection structure according to claim 7, characterized in that: The guide angle formed by the surface of the guide groove (213) and the end surface of the connecting groove (210) is 60° to 70°.

9. The headphone ear fork sliding arm connection structure according to claim 1, characterized in that: A wire threading channel (330) is hollowed out in the middle of the connecting protrusion (110) and the connecting groove (210), and when the sliding arm (100) and the ear fork (200) are connected, the cable in the sliding arm (100) is connected to the earphone unit through the wire threading channel (330).

10. A headset, characterized in that: The invention comprises the headphone ear fork sliding arm connection structure according to any one of claims 1 to 9.

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