Portable film pasting device capable of effectively preventing bubbles from being generated

Abstract

The utility model provides a portable film sticking device capable of effectively preventing bubbles from being generated, which comprises a base, a sliding piece, a compression roller and an exhaust device, the compression roller is rotatably mounted on the sliding piece, the sliding piece is slidably mounted on a guide rail of the base, and the base is provided with a positioning device for fixing a mobile phone and a film group. Comprising an elastic strip, a warped piece and a blocking column, the blocking column is located at the end of the elastic strip and vertically arranged, the warped piece is located on the blocking column and used for warping the edge of the protective film, and a pushing column for pushing the blocking column is arranged on the sliding piece. When the sliding piece moves to the tail end of the base, the pushing column of the sliding piece pushes the blocking column, and the blocking column drives the warped piece to move backwards or deviate laterally, so that the protective film completely falls onto the screen, and air is perfectly exhausted from a single side. According to the exhaust device designed by the utility model, the interaction among the components such as the elastic strip, the warped piece and the bumping post is utilized, so that air below a film can be effectively exhausted from a single side while the film is pasted, and the probability of bubble formation is obviously reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of film sticking tools, in particular to a convenient film sticking tool that effectively prevents the generation of bubbles. Background Art

[0002] With the increasing popularity of smartphones, screen protectors have become an indispensable accessory. However, during the application process, air bubbles often form between the film and the screen due to variations in operator skill, environmental factors, and design flaws in the application tools. These bubbles not only affect the aesthetics but can also reduce touchscreen sensitivity and even shorten the lifespan of the screen protector. Traditional manual application methods often make it difficult to control force and direction, which can easily lead to bubbles and wrinkles. While some commercially available application tools can provide some assistance, most lack effective air venting mechanisms or are overly complex, making them difficult for users to operate manually.

[0003] Common problems in the existing technology include:

[0004] Incomplete air exhaust: Many film-mounting tools are not specifically designed to guide air exhaust, making it difficult to avoid bubbles even with careful operation.

[0005] Operational complexity: Although some advanced film-sticking equipment has comprehensive functions, it has a high learning cost for ordinary consumers and is not convenient and easy to use.

[0006] Therefore, a convenient film applicator is proposed which can effectively prevent the generation of bubbles and solve the above problems. Utility Model Content

[0007] In view of this, the present invention proposes a convenient film applicator that effectively prevents the generation of bubbles. The main features are as follows: it includes a base, a sliding member, a pressure roller, and an exhaust device. The pressure roller is rotatably mounted on the sliding member. The sliding member is slidably mounted on the guide rail of the base. The base is provided with a positioning device for fixing the mobile phone and the film group. The exhaust device is located at one end of the base and includes an elastic bar, a lift plate, and a stop column. The stop column is located at the end of the elastic bar and is vertically arranged. The lift plate is located on the stop column and is used to lift the edge of the protective film. The sliding member is provided with a push column for pushing the stop column. When the sliding member moves to the end of the base, the push column of the sliding member pushes the stop column, and the stop column drives the lift plate to move backward or sideways, so that the protective film completely falls onto the screen, perfectly exhausting the air from one side.

[0008] Furthermore, two elastic bars are provided, extending from the center of the base to both sides, and the elastic bars are offset toward the center of the base, so that the lifter has space to retreat.

[0009] Optionally, the end of the spring bar is bent to form a folded piece, the folded piece is offset toward the center of the base, and the blocking column is vertically arranged above the folded piece. When the push column of the sliding member pushes, the lift piece of this solution is offset outward and separated from the protective film.

[0010] Further describing the aforementioned solution, the positioning device for securing the phone to the base utilizes a positioning frame or positioning block. The positioning frame can be integrally injection-molded with the base, and the positioning block can be soft or hard and secured to the base with glue. The positioning device for securing the film assembly to the base utilizes positioning hooks or positioning posts. The hooks or posts on the side closest to the exhaust device are taller than those on the other side, facilitating one-way exhaust during the film application process and preventing air bubbles.

[0011] The film applicator also includes an upper cover that is slidably mounted on the guide rails of the base to form a box with the base for securing the film group. The upper cover is provided with a handle that is rotatably connected to the sliding member. Pulling the handle can drive the sliding member and the pressure roller to move.

[0012] Optionally, an anti-fall-off spring sheet is further provided at the end of the base to prevent the sliding member and the pressure roller from falling off.

[0013] Furthermore, upper and lower guide rails parallel to each other are provided on the side panels of the base, the sliding column in the middle of the sliding member is installed in the lower guide rail, and the guide piece at the top of the sliding member is installed in the upper guide rail.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] High-efficiency exhaust system: Through a carefully designed exhaust device, the interaction between components such as spring bars, flaps and baffles is utilized to effectively exhaust the air under the film from one side while the film is being applied, significantly reducing the probability of bubble formation.

[0016] Simplified operation process: The overall structure is simple and clear, and the operation is intuitive and convenient. Even first-time users can get started quickly, which greatly improves the user experience.

[0017] Save time and materials: The efficient film lamination process reduces the possibility of repeated attempts, thereby saving time costs, and reduces film damage caused by incorrect operations, indirectly saving material costs.

[0018] To sum up, the convenient film applicator provided by the present invention can not only solve the bubble problem that is common in the traditional film applicator process, but also has significant advantages in terms of ease of use and economy, which is of great significance for improving the quality of individual users and even professional maintenance services. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is an overall schematic diagram provided for Example 1 of the present utility model;

[0021] Figure 2 This is an explosion diagram provided for Example 1 of the present utility model;

[0022] Figure 3 、 4 A schematic diagram of the base structure provided in Example 1 of the present utility model;

[0023] Figure 5 、 6 A schematic diagram of the base structure provided in Example 2 of the present utility model;

[0024] Figure 7 A schematic diagram of the structure of a sliding member provided in Example 1 of the present utility model;

[0025] Figure 8 This is an overall cross-sectional view provided for Example 1 of the present utility model;

[0026] Figure 9 A partial enlarged view of Example 1 of the present utility model;

[0027] Figure 10 This is a partial enlarged view provided for Example 2 of the present utility model.

[0028] Among them, the reference numerals in the figures are:

[0029] 1. Base; 11. Positioning column; 12. Positioning block; 13. Exhaust device; 131. Spring bar; 132. Tilting piece; 133. Folding piece; 134. Stop column; 14. Anti-slip spring piece; 15. Lower guide rail; 16. Upper guide rail; 2. Sliding part; 21. Push column; 22. Sliding column; 23. Guide piece; 3. Pressing roller; 4. Upper cover; 41. Handle; 5. Protective film; 6. Positioning film; 7. Release film; 8. Mobile phone.

[0030] The above drawings illustrate specific embodiments of the present invention, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concepts of the present invention for those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] In order to make the technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0033] Example 1

[0034] See also Figures 1-4 、 Figure 7-Figure 9 As shown, this embodiment discloses a convenient film applicator that effectively prevents the formation of bubbles. It includes a base 1, a sliding member 2, a pressure roller 3, and an exhaust device 13. The pressure roller 3 is rotatably mounted on the sliding member 2, which is slidably mounted on the guide rails of the base 1. The base 1 is equipped with a positioning device for fixing the mobile phone 8 and the film assembly. The exhaust device 13 is located at one end of the base 1 and includes a spring bar 131, a tilting piece 132, and a stopper 134. The stopper 134 is located at the end of the spring bar 131 and is vertically arranged. The tilting piece 132 is located on the stopper 134 and is used to tilt the edge of the protective film 5. The sliding member 2 is provided with a push post 21 that pushes the stopper 134.

[0035] like Figure 3 、 4 As shown, there are two spring bars 131 extending from the center of the base 1 to both sides, and the spring bars 131 are offset toward the center of the base 1 to form an angle &, the angle & is 5-20 degrees, so that the tilting piece 132 and the spring bar 131 have space to retreat. The positioning device for fixing the mobile phone 8 on the base 1 adopts a positioning frame or positioning block 12. The positioning frame can be integrally injection molded with the base 1, and the positioning block 12 can be a soft positioning block 12 or a hard positioning block 12, fixed to the base 1 by glue. Figure 8 As shown, the positioning device for fixing the film group on the base 1 adopts a positioning hook or positioning column 11, and the height of the positioning hook or positioning column 11 on the side close to the exhaust device 13 is higher than that on the other side, which facilitates one-way exhaust during the film application process and prevents the generation of bubbles.

[0036] like Figure 1As shown, the film applicator also includes an upper cover 4, which is slidably mounted on the guide rail of the base 1 and forms a box with the base 1 to ensure the film group. The upper cover 4 is provided with a handle 41, which is rotatably connected to the slider 2. By pulling the handle 41, the slider 2 and the pressure roller 3 can be driven to move. The end of the base 1 is also provided with an anti-fall-off spring plate 14 to prevent the slider 2 and the pressure roller 3 from falling off. The side panels of the base 1 are provided with upper guide rails 16 and lower guide rails 15 that are parallel to each other. The sliding column 22 in the middle of the slider 2 is installed in the lower guide rail 15, and the guide plate 23 at the top of the slider 2 is installed in the upper guide rail 16. The upper cover 4 is slidably mounted on the upper guide rail 16.

[0037] Example 2

[0038] On the basis of Example 1, Figure 5 、 6 As shown in FIG. 10 , the end of the spring bar 131 is bent to form a folded piece 133, which is offset toward the center of the base 1, and a stop post 134 is vertically disposed above the folded piece 133. When the push post 21 of the slider 2 pushes, the lift piece 132 is offset outward and separated from the protective film 5.

[0039] In order to have a more thorough and comprehensive understanding of the disclosed content of the utility model, its principle is further explained below in combination with the usage method.

[0040] During use, place the phone 8 to be filmed on the base 1 and secure it with the positioning blocks 12. Ensure that the screen surface of the phone 8 is flat and dust-free. Next, take the film assembly with the release film 7, protective film 5, and positioning film 6 and secure it to the positioning posts 11 on the base 1.

[0041] Remove the outermost release film 7 to expose the underlying protective film 5. At this point, the protective film 5 is still held in place by the positioning film 6, ready to contact the screen of the mobile phone 8.

[0042] The user can pull the handle 41 to drive the sliding member 2 and the pressing roller 3. The handle 41 drives the sliding member 2 and the pressing roller 3 to move smoothly along the guide rail, thereby pressing the protective film 5 onto the screen.

[0043] During the movement of the pressure roller 3, Figure 9 、 10 As shown, one end of the protective film 5 is kept in a lifted state by the lift piece 132, so as to ensure that the air is gradually discharged from the right side.

[0044] When the pressure roller 3 approaches the right end of the protective film 5, as the slider 2 continues to move forward, the push pin 21 on it finally contacts the stop pin 134. This action causes the stop pin 134 and the spring bar 131 to move backward, and the lifter 132 to retreat or deflect outward, allowing the lifter 132 to quickly detach from the surface of the protective film 5, allowing the protective film 5 to fall quickly and fit completely on the screen.

[0045] At the same time, the pressure roller 3 continues to apply uniform pressure along the screen surface to ensure that no bubbles remain between the protective film 5 and the screen.

[0046] Those skilled in the art will readily identify other embodiments of the present invention after considering this specification and practicing this invention. This application is intended to cover any variations, uses, or adaptations of the present invention that adhere to the general principles of the present invention and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only; the true scope and spirit of the present invention are indicated by the following claims.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may also be an element centered. When an element is considered to be "connected" to another element, it may be directly connected to the other element or there may be an element centered at the same time. In contrast, when an element is referred to as being "directly on" another element, there is no intermediate element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment. The terms "upper end", "lower end", "left side", "right side", "front end", "rear end" and similar expressions used herein are positional relationships with reference to the accompanying drawings.

[0048] It should be understood that the present invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A convenient film applicator that effectively prevents the generation of bubbles, comprising a base (1), a sliding member (2), a pressure roller (3), and an exhaust device (13), wherein the pressure roller (3) is rotatably mounted on the sliding member (2), and the sliding member (2) is slidably mounted on a guide rail of the base (1), and the base (1) is provided with a positioning device for fixing a mobile phone (8) and a film group, characterized in that: The exhaust device (13) is located at one end of the base (1), and comprises an elastic bar (131), a tilting piece (132), and a blocking column (134); the blocking column (134) is located at the end of the elastic bar (131) and is vertically arranged; the tilting piece (132) is located on the blocking column (134) and is used to tilt the edge of the protective film (5); and the sliding member (2) is provided with a push column (21) for pushing the blocking column (134).

2. The portable film applicator that effectively prevents bubble generation according to claim 1, characterized in that: Two elastic bars (131) are provided, extending from the center of the base (1) to both sides, and the elastic bars (131) are offset toward the center of the base (1).

3. The portable film applicator that effectively prevents bubble generation according to claim 1, characterized in that: The end of the elastic bar (131) is bent to form a folding piece (133), the folding piece (133) is offset toward the center of the base (1), and the blocking column (134) is vertically arranged above the folding piece (133).

4. The portable film applicator that effectively prevents bubble generation according to claim 1, characterized in that: The positioning device for fixing the mobile phone (8) on the base (1) adopts a positioning frame or a positioning block (12); the positioning device for fixing the membrane group on the base (1) adopts a positioning hook or a positioning column (11), and the height of the positioning hook or positioning column (11) on the side close to the exhaust device (13) is higher than that on the other side.

5. The portable film applicator that effectively prevents the generation of bubbles according to claim 1, characterized in that: It also includes an upper cover (4), which is slidably mounted on the guide rail of the base (1); the upper cover (4) is provided with a handle (41), and the handle (41) is rotatably connected to the sliding member (2).

6. The portable film applicator that effectively prevents the generation of bubbles according to claim 1, characterized in that: The end of the base (1) is also provided with an anti-falling spring sheet (14) for preventing the sliding member (2) and the pressure roller (3) from falling off.

7. The portable film applicator that effectively prevents the generation of bubbles according to claim 1, characterized in that: An upper guide rail (16) and a lower guide rail (15) parallel to each other are provided on the side panels of the base (1); a slide column (22) in the middle of the sliding member (2) is installed in the lower guide rail (15); and a guide piece (23) at the top of the sliding member (2) is installed in the upper guide rail (16).

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