Universal film pasting device for decorative protective film of earphone charging bin

Abstract

The utility model belongs to the technical field of earphone cabin accessories, and discloses a universal film pasting device for an earphone charging cabin decorative protective film, which comprises a first fixing part and a second fixing part, the first fixing part and the second fixing part are spliced to form a fixing seat for fixing a combined film; a plug is arranged on the second fixing part, the width of the plug is not larger than that of the first interface, clamping grooves are formed in the outer sides of the two side walls of the plug, and the clamping grooves can be connected with the protrusions of the first interface in a clamped mode; the thickness of the plug is not larger than the distance between the shell in the second interface and the electric contact piece, and the plug can be connected with the charging interface of the earphone bin in an inserted mode. According to the utility model, by arranging the plug which can be simultaneously matched with the first interface and the second interface or more than multiple kinds of plugs, the general film pasting device for the decorative protective film of the earphone charging cabin can be matched with more than multiple kinds of earphone cabin charging interfaces, and the film pasting is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of headphone charging case accessories, and in particular to a universal applicator for decorative protective film on headphone charging cases. Background Technology

[0002] Applying a patterned decorative film to the earphone case can enhance its appearance and provide protection. During the application process, a plug can be provided on the applicator to secure the film to the earphone case. However, since the internal structures and sizes of common interfaces such as Type-C, Micro USB, and Lightning are different, [the following text appears to be a separate, unrelated point:] ... Figure 6 As shown, the second interface also has an electrical contact piece inside, so the existing headphone charging case stickers can only be used for headphone cases with Type-C, Micro USB, or Lightning interfaces, and are not universal. Utility Model Content

[0003] In view of this, the present invention provides a universal applicator for decorative protective film on earphone charging cases, which solves the problem in the prior art that earphone cases cannot be used with both the second and first interfaces.

[0004] To achieve one or more of the above objectives or other objectives, this utility model proposes a universal applicator for decorative protective film on earphone charging cases, comprising a first fixing part and a second fixing part.

[0005] The first fixing part and the second fixing part are combined to form a fixing seat for fixing the combined membrane;

[0006] The second fixing part is provided with a plug, the width of the plug is not greater than the width of the first interface, and both sides of the plug are provided with slots, which can engage with the protrusion of the first interface.

[0007] The thickness of the plug is no greater than the distance between the housing and the electrical contact piece in the second interface, and the plug can be plugged into the charging interface of the earphone case.

[0008] Furthermore, when the plug is inserted into the first interface, the two side walls of the plug in the width direction can abut against the inner side wall corresponding to the first interface;

[0009] The plug has a first sidewall and a second sidewall in the thickness direction. When the plug is inserted into the second interface, the first sidewall can abut against the inner sidewall of the housing of the second interface, and the second sidewall can abut against the electrical contact piece of the second interface.

[0010] Furthermore, the length of the plug is no greater than the length of the first interface.

[0011] Furthermore, the length of the plug is 4.4-4.8 mm.

[0012] Furthermore, the width of the plug is 6.7-7.0 mm.

[0013] Furthermore, the slot is an arc-shaped slot, and the depth of the slot is 0.7-0.8 mm.

[0014] Furthermore, the thickness of the plug is 1.20-1.28 mm.

[0015] Furthermore, the plug is provided with a groove.

[0016] Furthermore, the first fixing part is symmetrically provided with two connecting posts, and the second fixing part is symmetrically provided with two matching connecting slots. When the first fixing part and the second fixing part are assembled, the connecting posts correspond one-to-one with the connecting slots and are inserted into the connecting slots.

[0017] Furthermore, the universal applicator for decorative protective film of the earphone charging case also includes a decorative protective film for the earphone charging case. The decorative protective film for the earphone charging case includes a combination film and a connecting film, and a traction part. The combination film is connected to one end of the connecting film. The other end of the connecting film is symmetrically provided with two through holes. The connecting post passes through the through holes and is inserted into the connecting groove to fix the connecting film.

[0018] Furthermore, the combined film includes a release film, a decorative film, and a base film that are detachably connected. The release film is disposed on one side of the decorative film, the base film is disposed on the other side of the decorative film, and the base film is connected to the connecting film.

[0019] Furthermore, a traction section is provided on one side of the base membrane.

[0020] Implementing the embodiments of this utility model will have the following beneficial effects:

[0021] The aforementioned universal protective film applicator for earphone charging cases utilizes a design where the width of the first interface is smaller than the second interface. The plug width of the applicator is no greater than the width of the first interface, while the thickness of the first interface is greater than the distance between the housing and the electrical contact in the second interface. The plug thickness is also no greater than the distance between the housing and the electrical contact in the second interface. This allows the plug to be inserted into both the first and second interfaces, positioned between the housing and the electrical contact. Therefore, this universal protective film applicator for earphone charging cases is compatible with both the second and first interfaces, offering convenience and speed. The first interface can be a Lightning interface, and the second interface can be a Type-C interface or a Micro USB interface. Attached Figure Description

[0022] 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.

[0023] in:

[0024] Figure 1 This is an exploded view of the universal adhesive film applicator for decorative protective film on earphone charging cases in one embodiment of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the earphone charging case decorative protective film universal applicator in one embodiment of the present invention (excluding the earphone charging case decorative protective film).

[0026] Figure 3 This is a front view of the second fixing part in one embodiment of the present invention;

[0027] Figure 4 This is a top view of the second fixing part in one embodiment of the present invention;

[0028] Figure 5 This is an exploded structural diagram of the decorative protective film of the earphone charging case in one embodiment of the present invention;

[0029] Figure 6 This is a top view of the second interface in the prior art.

[0030] Figure label:

[0031] 1. First fixing part; 11. Connecting post;

[0032] 2. Second fixing part; 21. Plug; 22. Slot; 23. Connecting slot; 24. Groove;

[0033] 3. Decorative protective film for earphone charging case; 31. Composite film; 311. Release film; 312. Decorative film; 313. Base film; 314. Traction part; 32. Connecting film; 321. Through hole;

[0034] 4. Electrical contact piece. Detailed Implementation

[0035] 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.

[0036] 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.

[0037] 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.

[0038] Reference Figures 1 to 5 Taking a Lightning interface as the first interface and a Type-C interface as the second interface as an example, when the first interface is a Lightning interface and the second interface is a Micro USB interface, the principle is the same as in the following examples, and will not be repeated. This utility model proposes a universal applicator for decorative protective films on earphone charging cases, including a first fixing part 1 and a second fixing part 2; the first fixing part 1 and the second fixing part 2 are joined to form a fixing base for fixing the decorative protective film on the earphone charging case; a plug 21 is provided on the second fixing part 2, the width of the plug 21 is not greater than the width of the first interface, and slots 22 are provided on the outer sides of both sides of the plug 21, the slots 22 being able to engage with the protrusions of the first interface;

[0039] The thickness of plug 21 is no greater than the distance between the housing and the electrical contact piece 4 in the second interface, and plug 21 can be plugged into the charging interface of the earphone case.

[0040] In this embodiment, the cross-sections of the first fixing part 1 and the second fixing part 2 are both approximately racetrack-shaped, and their lengths are both greater than the lengths of common earphone charging cases on the market. Since the assembly and disassembly of the first fixing part 1 and the second fixing part 2 are achieved by external force, and the length of the first fixing part 1 is greater than the length of the second fixing part 2, it is more convenient for the user to apply force to the first fixing part 1 during disassembly.

[0041] In this embodiment, the first fixing part 1 is provided with a connecting post 11, and the second fixing part 2 is provided with a matching connecting groove 23. When the first fixing part 1 and the second fixing part 2 are assembled, the connecting post 11 is inserted into the connecting groove 23. The decorative protective film 3 of the earphone charging case includes a combined film 31 and a connecting film 32, and a traction part 314. One end of the combined film 31 is connected to one end of the connecting film 32, and two through holes 321 are symmetrically provided on the other end of the connecting film 32. The connecting post 11 passes through the through holes 321 and is inserted into the connecting groove 23, thereby fixing the connecting film 32 and fixing the position of the combined film 31.

[0042] In this embodiment, two connecting posts 11 are provided, symmetrically distributed on the first fixing part 1. Two connecting grooves 23 are also provided, corresponding one-to-one with the connecting posts 11. Two through holes 321 are provided, corresponding to the connecting posts 11. The symmetrically arranged connecting posts 11 can simultaneously fix and position the connecting film 32, preventing the decorative layer from being misaligned due to the earphone charging case decorative protective film 3 rotating around the connecting posts 11.

[0043] When using this universal earphone charging case decorative protective film applicator, one end of the earphone charging case decorative protective film 3 with a decorative layer is fixed by the first fixing part 1 and the second fixing part 2, while the other end can move and fit the outer shell of the earphone case. The shape of the earphone charging case decorative protective film 3 can be adapted to the shape of the earphone case shell. After fixing the earphone charging case decorative protective film 3, plug the charging interface of the earphone case into the plug 21 to fix the earphone case and the applicator. At this time, the relative position of the combined film 31 and the earphone case is fixed. Specifically, as shown... Figure 5 As shown, the composite film 31 includes a release film 311, a decorative film 312, and a base film 313 that are detachably connected. The release film 311 is disposed on one side of the decorative film 312, and the base film 313 is disposed on the other side of the decorative film 312. The base film 311 is connected to the connecting film 32.

[0044] The portion of the connecting membrane 32 that fits into the earphone compartment is curved. In different embodiments, the base membrane 311 and the connecting membrane 32 can be integrally formed. Because the connecting membrane 32 is relatively thin and has a certain length and flexibility, the connecting membrane is fixed in a relative position to the mounting base, making it convenient for users to apply the membrane.

[0045] When applying the screen protector, the user first peels off the release film 311 closest to the earphone compartment, then attaches the decorative film 312 with the decorative pattern to the earphone compartment. After ensuring the decorative pattern is in place, the user peels off the base film 313. The base film 313 also has a pull-out part 314 for easy removal. After applying the screen protector, the earphone compartment can be removed from the applicator.

[0046] In this embodiment, when the plug 21 is inserted into the first interface, the two side walls of the plug 21 in the width direction can abut against the inner side wall corresponding to the first interface; the width of the plug 21, that is, in Figure 3 From the perspective of [the location of plug 21], the distance between the leftmost horizontal plane and the rightmost horizontal plane.

[0047] The plug 21 has a first sidewall and a second sidewall in the thickness direction. When the plug 21 is inserted into the second interface, the first sidewall abuts against the inner sidewall of the housing of the second interface, and the second sidewall abuts against the electrical contact piece 4 of the second interface. The thickness of the plug 21 refers to its thickness in the thickness direction. Figure 4 From the perspective of [the object], the distance between the upper surface of plug 21 and the lower surface of plug 21.

[0048] Specifically, the first interface is smaller in size than the second interface, and both sides of the interface have protrusions for securing the plug 21. Therefore, the width of the plug is no greater than the width of the first interface, and the length of the plug is no greater than the length of the first interface.

[0049] The standard Type-C interface is 8.34mm in length and width, but because the width of the first interface is smaller, the width of plug 21 is set to 6.7-7.0mm to accommodate the first interface. Specifically, this width can be set to 6.76mm, 6.90mm, or 6.96mm.

[0050] In addition, such as Figure 3 As shown, the slots 22 on the outer sides of both sides of the plug 21 are arc-shaped grooves, and the depth of the slots 22 is 0.7-0.8mm. The depth of the slots 22 refers to the depth of the grooves. Figure 3 From the perspective of [the device], the distance between the vertical plane where the leftmost end of the slot 22 is located and the vertical plane where the rightmost end is located are [the dimensions of the slot 22]. The position and size of the slot 22 are adapted to the protrusion of the first interface, and preferably, its depth is 0.75mm. When the earphone case with the first interface is inserted into the screen protector, external force allows the plug 21 to be inserted and removed from the interface. When no external force is applied, the slot 22 abuts against the protrusion of the first interface, fixing the earphone case in place.

[0051] For the second interface, such as Figure 6 As shown, a sheet-like electrical contact piece 4 is provided. When the plug 21 is inserted into the second interface, the plug 21 is located between the housing of the second interface and the electrical contact piece 4. To facilitate the insertion of the plug 21 into the second interface, the thickness of the plug 21 is no greater than the distance between the housing of the second interface and the electrical contact piece 4. Typically, the thickness of a standard Type-C interface is 2.56 mm. Since the electrical contact piece 4 is located in the middle of the second interface, the thickness of the plug 21 can be set to 1.2-1.3 mm. Preferably, to ensure compatibility with the second interface, the height is between 1.249-1.251 mm, for example, 1.250 mm.

[0052] In one embodiment, the plug 21 is also provided with a groove 24. When the plug 21 is inserted into the second interface, since the electrical contact piece 4 is provided with multiple pins, the groove 24 prevents the plug 21 from directly contacting the pins, thus avoiding friction on the pins during insertion and removal, which could lead to poor contact of the electrical contact piece 4.

[0053] Furthermore, in this embodiment, the length of the plug 21 is not greater than the length of the first interface. Specifically, the length of the plug 21 refers to the length of the first interface. Figure 4 From this perspective, the distance between the uppermost and lowermost horizontal planes of plug 21 is 4.4-4.8mm. In this embodiment, there is no data transmission between the screen protector and the earphone compartment, so it is only necessary to simultaneously secure the interface; this length is preferably set to 4.6mm.

[0054] 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; conversely, 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. A universal applicator for decorative protective film on earphone charging cases, characterized in that, Includes a first fixing part and a second fixing part; The first fixing part and the second fixing part are combined to form a fixing seat for fixing the combined membrane; The second fixing part is provided with a plug, the width of the plug is not greater than the width of the first interface, and both sides of the plug are provided with slots, which can engage with the protrusion of the first interface. The thickness of the plug is no greater than the distance between the housing and the electrical contact piece in the second interface, and the plug can be plugged into the charging interface of the earphone case.

2. The universal applicator for decorative protective film on earphone charging cases according to claim 1, characterized in that, The first interface is a Lightning interface, and the second interface is a Type-C interface or a Micro USB interface.

3. The universal applicator for decorative protective film on earphone charging cases according to claim 2, characterized in that, When the plug is inserted into the first interface, the two side walls of the plug in the width direction can abut against the inner side wall of the first interface. The plug has a first sidewall and a second sidewall in the thickness direction. When the plug is inserted into the second interface, the first sidewall can abut against the inner sidewall of the housing of the second interface, and the second sidewall can abut against the electrical contact piece of the second interface.

4. The universal applicator for decorative protective film on earphone charging cases according to claim 1 or 2, characterized in that, The length of the plug is no greater than the length of the first interface.

5. The universal applicator for decorative protective film on earphone charging cases according to claim 4, characterized in that, The length of the plug is 4.4-4.8mm.

6. The universal applicator for decorative protective film on earphone charging cases according to claim 1 or 2, characterized in that, The width of the plug is 6.7-7.0 mm.

7. The universal applicator for decorative protective film on earphone charging cases according to claim 1 or 2, characterized in that, The slot is an arc-shaped slot, and the depth of the slot is 0.7-0.8mm.

8. The universal applicator for decorative protective film on earphone charging cases according to claim 1 or 2, characterized in that, The thickness of the plug is 1.20-1.28 mm.

9. The universal applicator for decorative protective film on earphone charging cases according to claim 1, characterized in that, The plug has a groove.

10. The universal applicator for decorative protective film on earphone charging cases according to claim 1, characterized in that, The first fixing part is symmetrically provided with two connecting posts, and the second fixing part is symmetrically provided with two matching connecting slots. When the first fixing part and the second fixing part are assembled, the connecting posts correspond one-to-one with the connecting slots and are inserted into the connecting slots.

11. The universal applicator for decorative protective film on earphone charging cases according to claim 10, characterized in that, The universal applicator for decorative protective film of earphone charging case also includes a decorative protective film for earphone charging case. The decorative protective film for earphone charging case includes a combination film, a connecting film, and a traction part. The combination film is connected to one end of the connecting film. The other end of the connecting film is symmetrically provided with two through holes. The connecting post passes through the through holes and is inserted into the connecting groove to fix the connecting film.

12. The universal applicator for decorative protective film on earphone charging cases according to claim 11, characterized in that, The composite film includes a release film, a decorative film, and a base film that are detachably connected. The release film is disposed on one side of the decorative film, and the base film is disposed on the other side of the decorative film. The base film is connected to the connecting film.

13. The universal applicator for decorative protective film on earphone charging cases according to claim 12, characterized in that, The base membrane has a traction section on one side.

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