Earphone pasting film device

Abstract

This utility model discloses an earphone screen protector applicator, comprising: a fixed base with a positioning groove for positioning the earphone stem to be covered; elastic pads on both sides of the positioning groove for elastic contact with the earphone stem; symmetrical limiting horns on both sides of the upper end of the positioning groove for limiting the earphone housing; a positioning ring at the lower end of the positioning groove for fitting onto the rear end of the earphone stem; and positioning operation platforms extending outward from both sides of the positioning groove for supporting and positioning the screen protector to be covered. This utility model achieves precise alignment between the earphone and the screen protector by using a triple positioning structure (elastic pads, limiting horns, and positioning ring) within the positioning groove, aligning with the screen protector on the right-angled edge of the positioning operation platform. The screen protector application can be completed without holding the earphone. This utility model is simple in structure, easy to operate, reusable, significantly improves the accuracy and efficiency of screen protector application, is compatible with mainstream in-ear Bluetooth earphone models, and allows users to operate it themselves and change the earphone screen protector according to their preferences.

Description

Technical Field

[0001] This utility model relates to the field of headphone accessories technology, and in particular to a headphone film applicator. Background Technology

[0002] With the development of technology, portable Bluetooth headphones are being used more and more frequently for listening to music and making phone calls. Since some major brand Bluetooth headphones are quite expensive, consumers are starting to pay attention to "modifying and upgrading" the headphone stems for purposes such as protecting the headphones from wear and tear or decorating them to highlight their personality. For example, they may attach anti-scratch films or decorative films to the headphone stems.

[0003] However, Bluetooth earphones are usually quite small, and the shape of the earphone's main body is irregular, and the earphone stem is relatively thin, making it very inconvenient to operate when holding the earphone stem and easy to apply the screen protector crookedly. Utility Model Content

[0004] In view of this, the present invention provides a headphone film applicator to solve the problems of inconvenience and easy misapplication of the film when applying film to the headphone stem in the prior art.

[0005] To achieve one or more of the above objectives or other objectives, this utility model proposes: an earphone film applicator, comprising: a fixing base, wherein the fixing base is provided with a positioning groove for positioning the earphone stem to be applicated; Elastic pads are provided on the inner walls of both sides of the positioning groove for elastic contact with the earphone stem to be coated. The front end of the positioning groove is provided with limiting horns on both sides. The two limiting horns are symmetrically arranged about the central axis of the positioning groove and are used to limit and abut against the main body shell of the earphone to be coated. The rear end of the positioning groove is provided with a positioning ring, which is used to fit onto the rear end of the earphone stem to be coated. Positioning operation platforms are provided on both sides of the positioning groove, and the positioning operation platforms are flush with the upper surface of the positioning groove, used to support and position the earphone diaphragm to be attached.

[0006] Preferably, the upper surface of the elastic pad is lower than or flush with the upper surface of the positioning groove.

[0007] Preferably, the two limiting horns are arranged in a figure-eight shape, and the inner sidewalls of the limiting horns are closely fitted with the outer contour of the headphone main body shell to be coated.

[0008] Preferably, the inner sidewall of the limiting horn is provided with a first anti-slip structure.

[0009] Preferably, the positioning ring is made of an elastic material and can be tightly fitted to the rear end of the earphone to be coated.

[0010] Preferably, the positioning operation platform is provided with a positioning structure for positioning the side of the earphone diaphragm to be attached.

[0011] Preferably, the positioning structure is a right-angled stop extending upward on the positioning operation platform.

[0012] Preferably, the rear end of the fixing seat is detachably provided with a fixing cover, which, after being enclosed by the fixing seat, is engaged with the positioning ring for limiting connection.

[0013] Preferably, the rear end of the fixing cover may be closed or have an avoidance hole, and the avoidance hole is coaxially arranged with the positioning ring.

[0014] Preferably, a second anti-slip structure is provided on the outer walls of both sides of the fixing base.

[0015] Implementing the embodiments of this utility model will have the following beneficial effects: By employing the aforementioned headphone diaphragm applicator, an elastic pad is placed within the positioning groove to conform to the irregular curved surface of the headphone stem through elastic deformation. The horn-shaped positioning housing edge limits lateral offset, and a positioning ring is fitted around the rear end of the headphone stem to fix its axial position. These three elements form a "three-point positioning" system. Combined with the diaphragm alignment assistance of the positioning operation platform, precise alignment between the headphone and the diaphragm is achieved, effectively avoiding problems such as diaphragm misalignment and edge alignment deviation. This invention features a simple structure and convenient operation, significantly improving the accuracy and efficiency of diaphragm applicator application, and is compatible with mainstream in-ear Bluetooth headphone models. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] in: Figure 1 This is a schematic diagram of the overall structure of the headphone film applicator proposed in this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the headphone film applicator proposed in this utility model. Figure 2 ; Figure 3 This is an exploded structural diagram of the headphone film applicator proposed in this utility model; Figure 4 This is a schematic diagram of the earphone installation state of the earphone film device proposed in this utility model. Figure 1; Figure 5 This is a schematic diagram of the earphone installation state of the earphone film device proposed in this utility model. Figure 2 .

[0018] Reference numerals: 10, fixing base; 11, fixing cover; 20, positioning groove; 30, elastic gasket; 40, limiting horn; 50, positioning ring; 60, positioning operation platform; 61, right-angle stop; a, earphone stem; b, main unit shell. Detailed Implementation

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0022] like Figure 1-5 The image shows an embodiment provided by this utility model.

[0023] This utility model provides an earphone screen protector applicator, including: a fixing base 10, on which a positioning groove 20 is provided for positioning the earphone stem to be covered. It can be understood that the earphone stem refers to the columnar rod portion at the bottom of the earphone, and the main housing refers to the shell housing the earphone contains, along with its core components such as the battery, chip, and speaker. The length, width, and depth of the positioning groove 20 are matched to those of mainstream wireless Bluetooth earphones on the market. Elastic pads 30 are provided on the inner walls of both sides of the positioning groove 20 for elastic contact with the headphone stem to be coated. The elastic pads 30 are generally made of silicone, which can conform to the curved side wall of the headphone stem through elastic deformation, and provide sufficient friction to prevent the headphone from sliding. At the same time, it avoids scratches on the headphone shell caused by excessively hard materials. The thickness of the elastic pads 30 is 2-3mm. They are laid along the length of the positioning groove 20 and are installed on the inner wall of the positioning groove 20 by bonding or embedding. They can adapt to the surface of the headphone stem with different curvatures. If embedded installation is selected, a shallow groove is opened in the inner wall of the positioning groove 20, and the edge of the pad is embedded in the groove for fixation to prevent displacement.

[0024] The front end of the positioning groove 20 is provided with limiting horns 40 on both sides. The limiting horns 40 can be integrally molded from PP plastic, which has good elasticity and fatigue resistance. The two limiting horns 40 are in the shape of an "eight" and are symmetrically arranged with the central axis of the positioning groove 20 as the axis. They are used to limit and abut against the main body shell of the earphone to be coated. The "eight" shape can guide the main body shell of the earphone to be coated into the limiting area between the limiting horns 40. The inner sidewall of the limiting horn 40 fits tightly with the outer contour of the main body shell of the earphone to be coated. The distance between the two limiting horns 40 can be adapted to the maximum outer diameter of the earphone main body shell. When the earphone is placed from the top of the positioning groove 20, the main body shell squeezes the limiting horn 40 and produces elastic deformation as it is placed until the main body shell is completely in the limiting area. The limiting horn 40 fits tightly with the outer sidewall of the main body shell, limiting the lateral shaking of the earphone. The rear end of the positioning groove 20 is provided with a positioning ring 50, which is used to fit onto the rear end of the earphone stem to be coated. The inner diameter of the positioning ring 50 is adapted to the outer diameter of the rear end of the earphone stem to be coated, with a fitting gap of 0.1-0.3mm, which facilitates earphone insertion and ensures positioning accuracy. The positioning ring 50 is coaxial with the central axis of the positioning groove 20 and the limiting horn 40 to ensure positioning accuracy.

[0025] Positioning operation platforms 60 extend outward from both sides of the positioning groove 20. The positioning operation platform 60 and the fixing base 10 are integrated into one structure. The positioning operation platform 60 is flush with the upper surface of the positioning groove 20 and is used to support and position the headphone diaphragm to be attached, so as to position the headphone diaphragm in the middle position of the headphone stem. The upper surface of the positioning operation platform 60 can be optionally provided with positioning protrusions or positioning lines (not shown in the figure) for positioning the headphone diaphragm. The positioning protrusions can be hemispherical protrusions with a diameter of 1mm and a height of 0.5mm, with a quantity of 4, located at the four corners of the positioning operation platform 60, corresponding one-to-one with the corner positioning holes of common headphone diaphragms. The precise positioning of the headphone diaphragm is achieved by the cooperation of the holes and protrusions. The positioning lines can be laser-etched lines with a width of 0.1mm, drawn according to the contour ratio of the headphone stem, and can be directly aligned with the edge of the diaphragm without positioning holes, adapting to different types of headphone diaphragms.

[0026] When applying the earphone diaphragm, hold the outer sides of the mounting base 10 with one hand, and then use the other hand to place the earphone to be diaphragmed into the positioning groove 20, securing it between the two elastic pads 30. Adjust the position of the earphone so that the rear end of the earphone stem is inserted into the positioning ring 50, and the earphone's main body shell is tightly fitted with the two limiting horns 40, completing the earphone's positioning. Then, take another earphone diaphragm and place it on the positioning operation platform 60. After positioning and alignment, gently press the middle of the earphone diaphragm to stick that part of the diaphragm to the earphone stem. Hold the earphone's main body shell with your fingers and place the earphone along with the earphone diaphragm stuck to the earphone stem. Remove the earphone diaphragm from the mounting base 10. Although only a portion of the diaphragm is attached to the earphone, it is correctly positioned. Utilizing the structural characteristics of a universal small earphone, it works in conjunction with the positioning structure on the positioning platform 60 to keep the earphone to be diaphragmed, the limiting horn 40, the elastic pad 30, and the positioning ring 50 on the same central axis. This centers the earphone diaphragm in the middle of the earphone stem. Then, pinch both ends of the earphone with two fingers and press the unattached portion of the diaphragm with the fingers of the other hand to fully adhere it to the earphone stem, completing the diaphragm application. Understandably, depending on the type of earphone diaphragm (e.g., combined release film or single-piece film), some specific details during the application process can be adapted to the actual situation. The entire application process is simple and quick, significantly improving efficiency and precision compared to traditional manual application.

[0027] After adopting the above-mentioned headphone diaphragm applicator, an elastic pad 30 is set in the positioning groove 20 to fit the irregular curved surface of the headphone stem through elastic deformation. The limiting horn 40 engages with the edge of the main body shell to limit lateral displacement, and the positioning ring 50 is sleeved at the rear end to fix the axial position. The three form a "three-point positioning" system, keeping the headphone to be applicated, the limiting horn 40, the elastic pad 30, and the positioning ring 50 on the same central axis. With the assistance of the positioning operation platform 60 for diaphragm alignment, the headphone and diaphragm are accurately aligned, effectively avoiding problems such as diaphragm displacement and edge alignment deviation. This utility model has a simple structure and is easy to operate, which can significantly improve the accuracy and efficiency of diaphragm applicator application. It is compatible with mainstream in-ear Bluetooth headphone models, and users can operate it themselves, reuse it, and replace the headphone diaphragm according to their own preferences.

[0028] Specifically, the upper surface of the elastic pad 30 is lower than or flush with the upper end face of the positioning groove 20, so as to prevent the elastic pad 30 from protruding from the surface of the positioning operation platform 60. This ensures that when the earphone diaphragm is positioned on the positioning operation platform 60, the part of it located directly above the positioning groove 20 can approach or directly contact the surface of the earphone stem, which facilitates the subsequent operation of pasting the earphone diaphragm onto the earphone stem.

[0029] Furthermore, the inner wall of the limiting horn 40 is provided with a first anti-slip structure (not shown in the attached figure), such as a grid pattern or serrated anti-slip texture, which helps to increase the contact friction between the limiting horn 40 and the headphone main body shell, and enhances the axial limiting effect on the headphone main body shell.

[0030] Alternatively, the limiting horn 40 can be designed as an adjustable structure (not shown in the attached drawings). For example, the limiting horn 40 is connected to the fixed base 10 via a sliding groove, which is opened along the width direction of the positioning groove 20. A slider adapted to the sliding groove is provided at the bottom of the limiting horn 40; a locking bolt is threaded onto the slider, and the end of the bolt abuts against the bottom of the sliding groove. The position of the limiting horn 40 is fixed by tightening the bolt. The adjustment range of the limiting horn 40 is 5-15mm, which can be adapted to headphones with a maximum outer diameter of 5-15mm, covering mainstream in-ear Bluetooth headphones from mini to standard models, and can significantly improve the versatility of the headphone screen protector device.

[0031] Furthermore, the positioning ring 50 is made of elastic material, such as silicone. The positioning ring 50 can be tightly fitted to the rear end of the earphone to be coated. By increasing the contact friction with the earphone stem, it prevents the earphone from shifting axially during the coating process, further enhancing the axial limiting effect. It is especially suitable for earphone stems made of smooth plastic material.

[0032] Furthermore, the positioning operation platform 60 is provided with a positioning structure for positioning the side of the earphone diaphragm to be attached. The positioning structure is a right-angled stop 61 extending upward on the positioning operation platform 60, which is used to position and limit the side of the earphone diaphragm.

[0033] Furthermore, a fixing cover 11 is detachably provided at the rear end of the fixing base 10. The fixing cover 11 is fan-shaped. After the fixing cover 11 and the fixing base 10 are enclosed, they are engaged with the positioning ring 50 to limit and limit the positioning ring 50 on the fixing base 10. The rear end of the fixing cover 11 can be closed or have a clearance hole (not shown in the figure). The closed setting can better limit the rear end of the earphone stem, while the clearance hole can facilitate the rear end of earphone stems of different lengths to pass through, so that the earphone main body shell can be adapted to the position of the limiting horn 40. It can be understood that the clearance hole and the positioning ring 50 are coaxially arranged.

[0034] Furthermore, a second anti-slip structure (not shown in the attached figure) is provided on the outer walls of both sides of the fixing base 10. When applying the film, the outer walls of both sides of the fixing base 10 are the fixed positions that are directly pinched by the fingers. The second anti-slip structure, such as the anti-slip texture with a grid pattern or serrated pattern, helps to increase the contact friction between the fingers and the fixing base 10, making it less likely to slip when applying the film.

[0035] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An earphone film applicator, characterized in that, include: A fixing base (10) is provided with a positioning groove (20) for positioning the earphone handle to be fitted with a film; Elastic pads (30) are respectively provided on the inner walls of both sides of the positioning groove (20) for elastic contact with the earphone stem to be coated; Limiting horns (40) are provided on both sides of the front end of the positioning groove (20). The two limiting horns (40) are symmetrically arranged about the central axis of the positioning groove (20) and are used to limit and abut against the main body shell of the earphone to be covered. The positioning groove (20) is provided with a positioning ring (50) at its rear end, which is used to fit onto the rear end of the earphone stem to be coated; Positioning operation platforms (60) are provided on both sides of the positioning groove (20) extending outward. The positioning operation platforms (60) are flush with the upper surface of the positioning groove (20) and are used to support and position the earphone diaphragm to be attached.

2. The headphone film applicator according to claim 1, characterized in that, The upper surface of the elastic pad (30) is lower than or flush with the upper surface of the positioning groove (20).

3. The headphone film applicator according to claim 1, characterized in that, The two limiting horns (40) are arranged in a figure-eight shape, and the inner sidewall of the limiting horn (40) is closely fitted with the outer contour of the headphone main body shell to be coated.

4. The headphone film applicator according to claim 3, characterized in that, The inner wall of the limiting horn (40) is provided with a first anti-slip structure.

5. The headphone film applicator according to claim 1, characterized in that, The positioning ring (50) is made of elastic material and can be tightly fitted to the rear end of the earphone to be coated.

6. The headphone film applicator according to claim 1, characterized in that, The positioning operation platform (60) is provided with a positioning structure for positioning the side of the earphone diaphragm to be attached.

7. The headphone film applicator according to claim 6, characterized in that, The positioning structure is a right-angled guard (61) that extends upward on the positioning operation platform (60).

8. The headphone film applicator according to claim 1, characterized in that, The rear end of the fixed base (10) is detachably provided with a fixed cover (11), which, after being enclosed by the fixed base (10), is fitted with the positioning ring (50) for limiting.

9. The headphone film applicator according to claim 8, characterized in that, The rear end of the fixed cover (11) can be closed or have an avoidance hole, which is coaxial with the positioning ring (50).

10. The headphone film applicator according to claim 1, characterized in that, The two outer walls of the fixed base (10) are provided with a second anti-slip structure.

Images