Earphone rotating shaft assembling method

Abstract

The invention discloses an earphone rotating shaft assembling method, which comprises a support arm and a shaft piece, the support arm comprises an upper support arm, a lower support arm, a circular upper rotating seat and a circular lower rotating seat, and the upper rotating seat and the lower rotating seat are pivotally connected; a non-circular limiting hole is formed in the position, located on the upper wall of the first via hole, of the first shaft hole, a screw penetrates through the first via hole and the second via hole and then is connected with a nut in a screwed mode, the nut is arranged in the second shaft hole, and a damping piece is arranged between the nut and the inner wall of the second via hole. The assembling method comprises the following assembling steps: S1, assembling a shaft part, namely, firstly, enabling a screw rod to penetrate through a first through hole and a second through hole, then, mounting a damping part at a position, which is positioned in a second shaft hole, of the screw rod, sleeving the damping part on the screw rod, then, screwing a nut, relatively fixing an upper rotating seat and a lower rotating seat, and relatively rotating the upper rotating seat and the lower rotating seat by taking the damping part as a supporting point in the Z-axis direction; s2, the upper supporting arm is installed in the first side groove, and the lower supporting arm is installed in the second side groove; and S3, the upper support arm is installed on the head hanger, and then the earphone assembly is installed on the lower support arm.

Description

Technical Field

[0001] The present invention relates to the field of earphone assembly methods, and particularly to an earphone shaft assembly method. Background Art

[0002] A headphone generally includes a headband and earphone components provided on both sides of the headband. Currently, there are generally shafts provided at both ends of the earphone components and the headband. However, the existing shafts generally have a structure that swings on both sides and cannot achieve 360-degree rotation according to actual needs. The main factor is that if the shaft is designed too large, its aesthetics will be reduced. When the shaft is designed too small (generally within 2 cm), there are problems with its rotational stability and assembly, which in turn affect the use. Among them, the assembly efficiency is the key. At the same time, the setting of its damping is also related to the improvement of this type of earphone. Therefore, how to change the existing structure is the key to the design.

[0003] For example, in Chinese Patent CN202410411431.0, in order to adjust the fit with the ear, the overall volume is large, and the structure is also relatively complex. Therefore, the assembly cost is relatively high. In particular, in order to achieve the predetermined damping, a spring needs to be additionally provided. Summary of the Invention

[0004] The main object of the present invention is to propose an earphone shaft assembly method, aiming to improve the structure of the shaft and its assembly method, so that a damping shaft can be set in a smaller volume, improve the aesthetics of the product, and at the same time, the assembly process is simple and the product stability is relatively high.

[0005] To achieve the above object, the present invention proposes an earphone shaft assembly method, including,

[0006] A support arm, the support arm includes an upper support arm and a lower support arm;

[0007] A shaft member, the shaft member includes a circular upper rotating seat and a lower rotating seat, and the upper rotating seat and the lower rotating seat are pivotally connected between them,

[0008] The upper end of the upper rotating seat is provided with a first side groove penetrating the side wall, the lower rotating seat is provided with a second side groove penetrating the side wall, the lower end of the upper support arm is installed in the first side groove, and the upper end of the upper rotating seat is installed in the second side groove;

[0009] The upper rotating seat and the lower rotating seat are respectively provided with a first shaft hole and a second shaft hole penetrating through, and the first shaft hole and the second shaft hole are respectively provided with a first through hole and a second through hole;

[0010] The upper wall of the first shaft hole located in the first through hole is provided with a non-circular limiting hole. A screw passes through the first through hole and the second through hole and is then screwed with a nut. The nut is arranged in the second shaft hole, and a damping member is arranged between the nut and the inner wall of the second through hole, and the nut abuts against the damping member;

[0011] The assembly steps include:

[0012] S1: Assemble the shaft component. First, pass the screw through the first through hole and the second through hole. Then, install the damping component at the position of the screw in the second shaft hole, and sleuth the damping component on the screw. Then, screw the nut to relatively fix the upper swivel base and the lower swivel base. The upper swivel base and the lower swivel base rotate relative to each other with the damping component as the support point in the Z-axis direction;

[0013] S2: Install the upper support arm in the first side groove and the lower support arm in the second side groove;

[0014] S3: Install the upper support arm on the head suspension, and then install the earphone component on the lower support arm.

[0015] In actual production, taking the rotating shaft as a component, different from the existing rotating shaft, the screw of this application is a fixed structure. The upper swivel base and the lower swivel base rotate around the screw as the rotation axis, and the angle hovering is realized through the damping between the nut and the damping component, effectively avoiding the wear caused by the rotation of the screw or the loosening of the nut, improving the structural stability. At the same time, there is no need to install the damping component on the wall surface where the upper swivel base and the lower swivel base are in contact. Installing the damping component in the second shaft hole can reduce the wear, and the support surface between the upper swivel base and the lower swivel base is the relative wall surface, thereby improving the structural stability and service life. Although the structure is simple, it is superior to the existing rotating shaft design both in terms of assembly and use.

[0016] In the specific structure, the inner diameter of the second shaft hole is larger than the outer diameter of the nut, which is convenient for screwing and fixing. Description of the Drawings

[0017] Figure 1 is the exploded view of the shaft component Figure 1 ;

[0018] Figure 2 is the exploded view of the shaft component Figure 2 ;

[0019] Figure 3 is the cross-sectional view of the shaft component;

[0020] Figure 4 is the exploded view of the present invention;

[0021] Figure 5 is the three-dimensional schematic diagram of the present invention.

[0022] In the figure,

[0023] 11 is the upper support arm, 12 is the lower support arm,

[0024] 2 is the shaft component, 21 is the upper swivel base, 22 is the lower swivel base,

[0025] 31 is the first side groove, and 32 is the second side groove.

[0026] 41 is the first shaft hole, and 42 is the second shaft hole.

[0027] 51 is the first through hole, and 52 is the second through hole.

[0028] 61 is the non-circular limit hole, and 62 is the chuck.

[0029] 7 is the damping member, 701 is the screw rod, 702 is the nut, 71 is the first damping piece, 72 is the second damping piece, 73 is the first annular thread, 74 is the second annular thread, and 75 is the through hole.

[0030] 81 is the first screw, and 82 is the second screw.

[0031] 91 is the first support piece, 92 is the second support piece, 901 is the convex part, 902 is the horizontal part, and 903 is the hollow cavity.

[0032] 101 is the circular boss, and 102 is the circular rotating groove.

[0033] 201 is the arc-shaped groove, and 202 is the arc-shaped limit part. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0035] It should be noted that if there are directional indications (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial...) involved in the embodiments of the present invention, then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, then the directional indications will also change accordingly.

[0036] In addition, if there is a description involving "first" or "second" in the embodiments of the present invention, such descriptions of "first" or "second" are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0037] As Figures 1 to 5 shown, a method for assembling a headphone rotating shaft includes

[0038] a support arm (in the present application, the support arm is flat, and of course, it can also be a tubular structure. The shapes of the shaft hole, through hole, and side groove can be set according to actual different shapes, so as to achieve locking at different angles). The support arm includes an upper support arm 11 and a lower support arm 12;

[0039] a shaft member 2, the shaft member 2 includes a circular upper rotating seat 21 and a lower rotating seat. The upper rotating seat 21 and the lower rotating seat 22 are pivotally connected

[0040] The upper end of the upper rotating seat 21 is provided with a first side groove 31 penetrating the side wall. The lower rotating seat 22 is provided with a second side groove 32 penetrating the side wall. The lower end of the upper support arm 11 is installed in the first side groove 31, and the upper end of the upper rotating seat 21 is installed in the second side groove 32;

[0041] The upper rotating seat 21 and the lower rotating seat 22 are respectively provided with a first shaft hole 41 and a second shaft hole 42 penetrating therethrough. The first shaft hole 41 and the second shaft hole 42 are respectively provided with a first through hole 51 and a second through hole 52;

[0042] A non-circular limiting hole 61 is provided on the upper wall of the first shaft hole 41 where the first through hole 51 is located. A screw 701 passes through the first through hole 51 and the second through hole 52 and is then screwed with a nut 702. The nut 702 is arranged in the second shaft hole 42. A damping member 7 is provided between the nut 702 and the inner wall of the second through hole 52. The nut 702 abuts against the damping member 7;

[0043] The assembly steps include:

[0044] S1: Assemble the shaft member 2. First, pass the screw 701 through the first through-hole 51 and the second through-hole 52. Then, install the damping member 7 at the position of the screw 701 in the second shaft hole 42, and sleuth the damping member 7 on the screw 701. Then, screw the nut 702 to relatively fix the upper swivel base 21 and the lower swivel base 22. The upper swivel base 21 and the lower swivel base 22 rotate relative to each other with the damping member 7 as the support point in the Z-axis direction.

[0045] S2: Install the upper support arm 11 in the first side groove 31 and install the lower support arm 12 in the second side groove 32.

[0046] S3: Install the upper support arm 11 on the head suspension, and then install the earphone assembly on the lower support arm 12.

[0047] In actual production, taking the rotating shaft as a component, different from the existing rotating shaft, the screw 701 of the present application is a fixed structure. The upper swivel base 21 and the lower swivel base 22 rotate around the screw 701 as the rotation axis, and the angle hover is realized through the damping between the nut 702 and the damping member 7, effectively avoiding the wear caused by the rotation of the screw 701 or the loosening of the nut 702, improving the structural stability. At the same time, there is no need to set the damping member 7 on the wall surface where the upper swivel base 21 and the lower swivel base 22 are in contact. The damping member 7 can be installed in the second shaft hole 42. At the same time, installing the damping member 7 on the bottom wall of the second shaft hole 42 and the nut 702 assembly can also reduce wear. The support surface between the upper swivel base and the lower swivel base 22 is the opposite wall surface, thereby improving the structural stability and service life. Although the structure is simple, it is superior to the existing rotating shaft design in terms of both assembly and use.

[0048] Specifically, a chuck 62 is provided at the upper end of the screw 701. The chuck 62 is adapted to the structure of the non-circular limiting hole 61. The chuck 62 extends into the non-circular limiting hole 61, so that the screw 701 is a non-rotating node.

[0049] Specifically, a first threaded hole extending into the first shaft hole 41 is provided on the side wall of the upper swivel base. The upper support arm 11 is provided with a first threaded through-hole matching the first threaded hole. The upper support arm 11 is clamped in the first side groove 31. A first screw 81 is screwed into the first threaded hole and passes through the first threaded through-hole to fix the upper support arm 11 to the first side groove 31.

[0050] A second threaded hole extending into the second shaft hole 42 is provided on the side wall of the lower swivel base 22. The lower support arm 12 is provided with a second threaded through-hole matching the second threaded hole. The lower support arm 12 is clamped in the second side groove 32. A second screw 82 is screwed into the second threaded hole and passes through the second threaded through-hole to fix the lower support arm 12 to the second side groove 32.

[0051] Of course, for specific installation, snap fasteners or non-circular side grooves can also be used to achieve the installation and fixation of the upper arm 11 and the lower arm 12.

[0052] For example, fixing with glue or ultrasonic welding.

[0053] Specifically, the damping member 7 includes a first damping sheet 71, a first support sheet 91, a second support sheet 92, and a second damping sheet 72. The first damping sheet 71 and the second damping sheet 72 are rigid sheet bodies.

[0054] The first damping sheet 71 abuts against the wall surface of the first shaft hole 41, and the lower wall of the second damping sheet 72 abuts against the nut 702.

[0055] Part of the first support sheet 91 and the second support sheet 92 are in contact and can rotate relative to each other.

[0056] During installation, the screw 701 passes through the first damping sheet 71, the first support sheet 91, the second support sheet 92, and the second damping sheet 72, thereby realizing the mutual cooperation and fixation between the upper swivel base and the lower swivel base 22.

[0057] Specifically, the rigid sheet body is a metal sheet, a ceramic sheet, or a Teflon sheet body, which can provide a predetermined support and enable the upper swivel base and the lower swivel base 22 to rotate around the position where the first support sheet 91 and the second support sheet 92 are in contact.

[0058] Specifically, the first support sheet 91 and the second support sheet 92 have the same structure, including a convex portion 901 and a horizontal portion 902 extending horizontally from the rear end of the convex portion. The horizontal portion is in contact with the damping sheet.

[0059] The two convex portions are in contact with each other. The side of the convex portion close to the damping sheet is a hollow cavity 903. Through a smaller contact area, the mutual cooperation between the upper swivel base and the lower swivel base 22 is realized, while avoiding excessive damping caused by too large a contact area. At the same time, the hollow cavity also avoids the problem of excessive damping, ensuring stable rotation.

[0060] Specifically, the end wall of the first support sheet 91 in contact with the first damping sheet 71 is provided with a first annular groove 73.

[0061] The end wall of the second support sheet 92 in contact with the second damping sheet 72 is provided with a second annular groove 74.

[0062] The setting of the annular groove can provide a predetermined frictional force, and the setting of the hollow cavity also avoids excessive deformation of the damping sheet (i.e., avoiding extrusion deformation).

[0063] Specifically, the first damping sheet 71 and the second damping sheet 72 are respectively provided with through holes 75 to avoid the problem of the outer peripheral wall of the damping sheet extending outward due to deformation.

[0064] Specifically, the first damping piece 71 and the second damping piece 72 are rubber pads or permanent magnets, and the permanent magnets can provide a more linear damping feeling.

[0065] Specifically, circular bosses 101 and circular rotating grooves 102 are respectively provided on the opposite wall surfaces of the upper rotating seat and the lower rotating seat 22. The circular bosses 101 extend into the circular rotating grooves. This structure can provide a larger rotation fulcrum for the upper rotating seat and the lower rotating seat 22, improve the use stability, and avoid excessive load on the screw 701 caused by the need to achieve a large supporting force in a smaller volume.

[0066] Specifically, the circular rotating groove is provided with an arc-shaped groove 201, and the circular boss 101 is provided with an arc-shaped limiting portion 202. The arc-shaped limiting portion 202 extends into the arc-shaped groove. Through the cooperation of the arc-shaped groove and the arc-shaped limiting portion, the angle adjustment between the upper support arm 11 and the lower support arm 12 is realized.

[0067] In actual production, although this field is a mature field, through the improved rotating shaft, the problems of too small supporting surface, damping damage or easy fracture caused by the structure with the friction between the rotating structures in the existing products are effectively solved.

[0068] At the same time, in actual production, there is also a hollow structure, that is, the screw 701 is a hollow structure. At the same time, both the upper support arm 11 and the lower support arm 12 are hollow structures. Through the hollow screw 701, the upper support arm 11 and the lower support arm 12, a wire passing channel can be provided, and then the cable can be hidden therein, so as to realize the structure hiding. At the same time, the setting of this structure will not affect the locking between the screw 701 and the nut 702, nor will it affect the relative rotation between the upper rotating seat and the lower rotating seat 22. That is, the screw 701 can be understood as a fixed structure, while the existing screw 701 is generally rotatably arranged.

[0069] At the same time, when the upper rotating seat and the lower rotating seat 22 rotate respectively, it will not affect the cable fixing (that is, it will not interfere with the structure between the earphone and the earphone body. At this time, the headband can be a hollow structure, so as to realize the electrical connection of the dual earphones).

[0070] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An assembling method for a headphone rotating shaft, characterized in that, including a support arm, the support arm including an upper support arm and a lower support arm; a shaft member, the shaft member including an upper swivel base and a lower swivel base in a circular shape, the upper swivel base and the lower swivel base being pivotally connected to each other; the upper end of the upper swivel base is provided with a first side groove penetrating the side wall, the lower swivel base is provided with a second side groove penetrating the side wall, the lower end of the upper support arm is installed in the first side groove, and the upper end of the upper swivel base is installed in the second side groove; the upper swivel base and the lower swivel base are respectively provided with a first shaft hole and a second shaft hole penetrating therethrough, and the first shaft hole and the second shaft hole are respectively provided with a first through hole and a second through hole; the upper wall of the first shaft hole located at the first through hole is provided with a non-circular limiting hole, a screw passes through the first through hole and the second through hole and is then screwed with a nut, the nut is arranged in the second shaft hole, and a damping member is arranged between the nut and the inner wall of the second through hole, and the nut abuts against the damping member; the assembling steps include: S1: Assembling the shaft member. First, pass the screw through the first through hole and the second through hole, then install the damping member at the position of the screw in the second shaft hole, and sleeved the damping member on the screw, then screw the nut and relatively fix the upper swivel base and the lower swivel base, and the upper swivel base and the lower swivel base rotate relatively with the damping member as the support point in the Z-axis direction; S2: Install the upper support arm in the first side groove and the lower support arm in the second side groove; S3: Install the upper support arm on the head hanging part, and then install the earphone assembly on the lower support arm.

2. The method for assembling the earphone rotating shaft according to claim 1, wherein: the upper end of the screw is provided with a chuck, the structure of the chuck is adapted to the non-circular limiting hole, and the chuck extends into the non-circular limiting hole.

3. The earphone shaft assembly method according to claim 1, wherein: the side wall of the upper swivel base is provided with a first threaded hole extending into the first shaft hole, the upper support arm is provided with a first threaded through hole matching the first threaded hole, the upper support arm is clamped in the first side groove, and a first screw is screwed into the first threaded hole and passes through the first threaded through hole to fix the upper support arm in the first side groove; the side wall of the lower swivel base is provided with a second threaded hole extending into the second shaft hole, the lower support arm is provided with a second threaded through hole matching the second threaded hole, the lower support arm is clamped in the second side groove, and a second screw is screwed into the second threaded hole and passes through the second threaded through hole to fix the lower support arm in the second side groove.

4. The method for assembling the earphone rotating shaft according to claim 3, characterized in that: the damping member includes a first damping sheet, a first support sheet, a second support sheet and a second damping sheet, and the first damping sheet and the second damping sheet are hard sheet bodies; the first damping sheet abuts against the wall surface of the first shaft hole, the lower wall of the second damping sheet abuts against the nut, the first support sheet and the second support sheet are partially attached to each other and can rotate relatively, and during installation, the screw passes through the first damping sheet, the first support sheet, the second support sheet and the second damping sheet.

5. The method for assembling the headphone rotating shaft according to claim 4, characterized in that: the hard sheet body is a metal sheet, a ceramic sheet or a Teflon sheet body; the first support sheet and the second support sheet have the same structure, including a convex part and a horizontal part horizontally extending from the rear end of the convex part, and the horizontal part is attached to the damping sheet; the two convex parts are attached to each other; one side of the convex part close to the damping sheet is a hollow cavity.

6. The method for assembling the earphone rotating shaft according to claim 5, wherein: the end wall of the first support sheet attached to the first damping sheet is provided with a first annular pattern; the end wall of the second support sheet attached to the second damping sheet is provided with a second annular pattern.

7. The method for assembling the earphone rotating shaft according to claim 5, characterized in that: the first damping sheet and the second damping sheet are respectively provided with through holes.

8. The method for assembling the earphone rotating shaft according to claim 5, wherein: The first damping piece and the second damping piece are rubber pads or permanent magnets.

9. The headphone shaft assembly method according to claim 1, characterized in that: The opposite wall surfaces of the upper rotating base and the lower rotating base are respectively provided with a circular boss and a circular rotating groove, and the circular boss extends into the circular rotating groove.

10. The method for assembling a headphone rotating shaft according to claim 9, wherein: The circular rotating groove is provided with an arc-shaped groove, and the circular boss is provided with an arc-shaped limiting portion, and the arc-shaped limiting portion extends into the arc-shaped groove.

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