Simple and universal film sticking tool

Abstract

The utility model discloses a simple and general film pasting gadget relates to mobile phone film pasting auxiliary tool field, aims at solving the problem of existing product draw and pull after the sliding block jam, poor compatibility, high cost and the installation complex etc. It includes the fixed base with mobile phone containing cavity and guide rail, the movable base of pull -out, is equipped with the transition axle to eliminate the clearance jam, and the movable sliding block with high -low position groove gyro wheel, and positioning device, contains tail plug, central spring piece, diaphragm positioning column and hook, ensures mobile phone and film group accurate positioning. The gadget slides smoothly, and is compatible with different size thickness mobile phone, has positioning accurate, low in cost, easy operation, and the film pasting effect is good and so on the obvious advantage, is suitable for large -scale popularization.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone screen protector auxiliary tools, and in particular to a simple and universal screen protector applicator that can be adapted to mobile phones of different sizes and thicknesses. Background Technology

[0002] In daily life, screen protectors need to be precisely aligned with the screen; otherwise, problems such as air bubbles and misalignment can easily occur. Existing screen protector applicators have the following drawbacks:

[0003] When adjusting the screen protector to fit phones of different lengths, gaps can easily form between the fixed base and the movable base, causing the movable slider to get stuck at the gap and affecting the smoothness of screen protector application.

[0004] The single scroll wheel design cannot be compatible with phones of different thicknesses (such as the Apple 17 Air, which is only 5.65mm thick, and the Huawei foldable screen X5, which is 11.08mm thick, a difference of more than 5mm). If it is to be compatible with thicker phones, the scroll wheel diameter needs to be increased (such as from 6mm to 17mm), which leads to material waste and increased costs.

[0005] The positioning device has poor compatibility and cannot stably fix mobile phones of different widths and thicknesses. In addition, some designs rely on spring structures, which makes installation complicated and labor costs high.

[0006] The overall structure is heavy and consumes a lot of materials, further increasing costs.

[0007] Therefore, this utility model proposes a simple and universal screen protector applicator to solve the above problems. Utility Model Content

[0008] In view of this, the present invention provides a simple and universal screen protector applicator, which aims to solve the problems of existing screen protector applicators such as slider jamming after being pulled out, poor compatibility, high cost, and complicated installation.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A simple and universal screen protector applicator includes a fixed base with a central phone housing and guide rails on both sides; a pull-out and adjustable movable base slidably connected to the guide rails of the fixed base; and a movable slider with rollers, slidably mounted on the fixed and movable bases to press the screen protector onto the screen surface. The fixed and movable bases also have positioning devices for positioning the phone and screen protector. The bottom surfaces of the fixed and movable bases are coplanar contact surfaces, and the bottom of the movable slider has a contact post that slides and engages with the contact surface. This technical solution uses the phone housing of the fixed base to support the phone, and the guide rails on both sides for the movable base to slide and accommodate phones of different lengths. The movable slider, with its rollers, presses the screen protector onto the screen surface, achieving the application action. The positioning device ensures accurate relative positioning of the phone and screen protector. The coplanar bottom surfaces of the fixed and movable bases, combined with the contact post of the movable slider, ensure the stability of the slider during sliding, ensuring accurate alignment and smooth sliding of the phone and screen protector during application, thus achieving the core function of "simple and universal."

[0011] Furthermore, the movable slider is equipped with a high slot and a low slot, which can be used to install rollers of different diameters to adapt to the differences in phone thickness, avoid uneven screen protector pressure caused by differences in phone thickness, and improve the device's compatibility with phones of different thicknesses.

[0012] Furthermore, the positioning device includes a centering spring on the movable base and a tail plug on the fixed base. The tail of the phone is fixed by the tail plug, and the head of the phone is centered and positioned by the centering spring. It also includes a film positioning post on the fixed base and a film hook on the movable base. Dual positioning ensures that the phone and film are accurately positioned before the film is applied, avoiding misalignment of the film due to phone shaking or film shift, thus improving the accuracy of the film application from the source.

[0013] Furthermore, the membrane hook is lower than the membrane positioning post so that the positioning membrane is placed at an angle. The angled membrane assembly can reduce the air encapsulation during the application process, making it easier for air bubbles to escape from the higher side, reducing the probability of air bubble formation and improving the flatness of the applied membrane.

[0014] Furthermore, the movable base is equipped with a sliding shaft and a transition shaft. The sliding shaft is used to cooperate with the first guide rail to stably pull the movable base out, and the transition shaft cooperates with the second guide rail to transition the gap formed by pulling out into a plane. This solves the problem of the movable slider getting stuck due to the gap after the movable base is pulled out, ensuring that the slider slides along a flat surface throughout the entire process, thus ensuring the continuity and smoothness of the film application action.

[0015] Furthermore, the movable base is equipped with an elastic limit hook. After the movable slider is installed, it is limited by the elastic limit hook, eliminating the need for additional fixing structures. The elastic limit hook ensures the stable installation of the movable slider, preventing the slider from falling off during use and affecting the film application. It also simplifies the installation steps and improves the ease of operation.

[0016] Furthermore, the tail plug is equipped with a flexible spring, which can adapt to phones of different thicknesses through elastic deformation; the centering spring has a double-spring structure. The flexible spring improves the adaptability to different types of phone charging ports, and the double-spring structure enhances the stability and centering accuracy of the head positioning, further reducing phone positioning deviation.

[0017] Furthermore, the fixed base and the mobile base are respectively provided with weight reduction holes and camera avoidance holes. The weight reduction holes make the device lightweight and easy to carry; the camera avoidance holes ensure that the device is compatible with mobile phones with protruding cameras, improving its universality with different mobile phone models.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The sliding shaft and transition shaft work together to solve the problem of slider jamming caused by the pull-out gap, which is an industry first design.

[0020] The dual-slot roller design is compatible with phones of different thicknesses, reducing roller material consumption and lowering costs.

[0021] The flexible positioning components (tail insert spring, double spring) are compatible with mobile phones of different sizes and have high positioning accuracy.

[0022] The flexible limit hook simplifies installation, eliminates the need for a spring structure, and reduces labor and material costs;

[0023] The slim design (weight-reducing holes, clearance holes) further saves materials and improves portability. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments 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.

[0025] Figure 1 , 2 This is an overall schematic diagram of an embodiment of the present utility model;

[0026] Figure 3 A partial schematic diagram of an embodiment of this utility model;

[0027] Figure 4 An exploded view diagram provided for an embodiment of this utility model;

[0028] Figure 5 A schematic diagram of the movable base structure provided in an embodiment of this utility model;

[0029] Figure 6This is a schematic diagram of the slider and roller structure provided in an embodiment of the present utility model;

[0030] Figure 7 Another exploded view provided for an embodiment of this utility model;

[0031] Figure 8 , 9 This is a schematic diagram illustrating the installation and use of an embodiment of the present utility model;

[0032] Figure 10 A partial enlarged view provided for an embodiment of this utility model;

[0033] Figure 11 This is a cross-sectional schematic diagram provided for an embodiment of the present utility model.

[0034] The following are the labeling elements in the figure:

[0035] 1. Fixed base; 11. Tail plug; 12. Weight reduction hole; 13. Support foot; 14. Diaphragm positioning post; 15. Mobile phone receiving cavity; 16. First guide rail; 17. Second guide rail; 2. Movable base; 21. Sliding shaft; 22. Transition shaft; 23. Elastic limit hook; 24. Centering spring; 25. Camera clearance hole; 26. Diaphragm hook; 27. Abutment surface; 28. Limit hook; 3. Slider; 31. Low position groove; 32. High position groove; 33. Abutment post; 4. Roller; 5. Mobile phone; 6. Protective film; 7. Positioning film.

[0036] The accompanying drawings have illustrated 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 concept of the present invention to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0038] To make the technical solution and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0039] This utility model discloses a simple and universal screen protector applicator, the specific implementation of which is designed to solve the problems of existing screen protector applicators such as slider jamming after being pulled out, poor compatibility, high cost, and complex installation. Please refer to [link / reference]. Figures 1-11As shown, the whole system consists of four core components: a fixed base 1, a movable base 2, a movable slider 3, and a positioning device. These components work together to achieve precise film application to mobile phones 5 of different sizes and thicknesses.

[0040] In this embodiment, the fixed base 1, serving as the basic load-bearing structure of the device, is injection molded from high-strength ABS engineering plastic, and is elongated in shape, ensuring both structural strength and lightweight design. A rectangular mobile phone receiving cavity 15 is provided in the middle, adaptable to mainstream mobile phone sizes. Guide rails are symmetrically arranged on both sides; each side includes a first guide rail 16 and a second guide rail 17, both featuring a recessed groove design. A tail plug 11 is located near the end of the fixed base 1. Figure 1 As shown, a gap is made between the tail plug 11 and the fixed base 1 to ensure that the tail plug 11 has sufficient elasticity. Cylindrical diaphragm positioning posts 14 are symmetrically provided at the ends of the fixed base 1, with hemispherical tops to fit the positioning holes of the main diaphragm module. There are support feet 13 at the four corners of the bottom of the fixed base 1, which serve to prevent slippage and provide support.

[0041] In this embodiment, the movable base 2 is also injection molded from ABS engineering plastic, forming a complete bearing surface with the fixed base 1. A sliding shaft 21 and a transition shaft 22 are provided near the fixed base 1. The sliding shaft 21 is L-shaped, 10-50mm longer than the transition shaft 22, with a smooth surface. Two are symmetrically arranged along the length direction, slidingly engaging with the first guide rail 16 of the fixed base 1 to ensure smooth sliding. The transition shaft 22 engages with the second guide rail 17, ensuring its top surface remains flush with the contact surface 27 of the fixed base 1 and the movable base 2 during sliding, transitioning the gap to a flat surface and resolving the jamming problem of the movable slider 3. Figure 3 As shown.

[0042] like Figure 5 , 10 As shown, the movable base 2 has an elastic limiting hook 23 near its end, with an elastic deformation range of 0-5mm. After the movable slider 3 is installed in place, it is locked in place by the hook to prevent it from falling off and to facilitate installation and removal. A centrally located spring 24 with a double-spring structure is symmetrically distributed on both sides in the width direction, bending inward into an arc-shaped clamping part. The initial spacing is slightly smaller than the width of a mainstream mobile phone. When the head of the mobile phone 5 is placed in, it is compressed to generate elastic force. A "J"-shaped diaphragm hook 26 is provided at the position corresponding to the diaphragm positioning post 14 of the fixed base 1, lower than the height of the positioning post, so that the diaphragm assembly is tilted at 5-10° after positioning. There is also a matching camera clearance hole 25 corresponding to the camera position of the mobile phone 5, ensuring that cameras of mobile phones 5 of different lengths can be cleared.

[0043] like Figure 6As shown, in this embodiment, the movable slider 3 is made of plastic injection molding. It has a high groove 32 and a low groove 31 for mounting rollers 4 of different diameters. The high groove 32 is 4mm deep, suitable for 6-10mm diameter rollers 4, applicable to thin phones such as the Apple 17 Air; the low groove 31 is 8mm deep, suitable for 12-17mm diameter rollers 4, applicable to thicker phones such as the Huawei foldable screen X5. The inner walls of both grooves have shaft holes for mounting roller shafts, ensuring smooth rotation. The rollers 4 are made of silicone, 10-15mm wide, suitable for the screen width of the phone 5, and can be covered with a single compression. The bottom has four rectangularly distributed cylindrical abutment posts 33, made of the same material as the movable slider 3, with a smooth bottom, which slide in contact with the abutment surfaces 27 of the fixed base 1 and the movable base 2, ensuring smooth and stable sliding without shaking.

[0044] The positioning device consists of a mobile phone positioning component and a film assembly positioning component, working together to achieve precise positioning. The mobile phone positioning component includes a tail plug 11 and a centering spring 24. The tail of the mobile phone 5 is inserted into the tail plug 11, and the elastic spring is fixed by deformation. The head is placed between two springs, which clamp and center the phone. This device can accommodate mobile phones 5 with a width of 50-80mm and a thickness of 5-12mm, with a positioning error ≤0.2mm. The film assembly positioning component includes a film positioning post 14 and a film hook 26. One end of the film assembly (protective film 6, positioning film 7) is fitted onto the positioning post 14 through a positioning hole, and the other end is hung on the hook 26. Because the hook 26 is lower than the positioning post 14 and is tilted, air is expelled from the lower end to the higher end when the film is applied.

[0045] During assembly, first align the sliding shaft 21 of the movable base 2 with the first guide rail 16 of the fixed base 1, and align the transition shaft 22 with the second guide rail 17. Push them in until they partially overlap to ensure smooth fit. After assembly, the contact surfaces 27 should be on the same plane with a flatness error ≤0.1mm. Next, select a suitable roller 4 according to the thickness of the phone 5, and install it onto the high slot 32 and low slot 31 of the movable slider 3 via the roller shaft to ensure flexible rotation. Then, place the movable slider 3 on the contact surface 27 and slide it until it is limited by the elastic limit hook 23 to complete the assembly. Finally, check the positioning device by placing a standard phone 5 and film assembly (protective film 6, positioning film 7) for testing to ensure that the alignment error is ≤0.3mm.

[0046] To use, first place the phone 5 with the screen facing up, insert the tail into the tail plug 11 and secure it with the elastic spring, and place the head between the centering springs 24 for centering positioning, ensuring the screen adheres to the bottom of the receiving cavity 15. Next, peel off a corner of the release film of the protective film 6, and fit the positioning hole of the positioning film 7 onto the film positioning post 14, with the other end hanging on the film hook 26, adjusting it to be roughly aligned with the screen. At this time, the film assembly (protective film 6 and positioning film 7) is in a tilted state. Then, hold both ends of the movable slider 3 and slowly slide it along the contact surface 27 at a speed of 5-10mm / s. The roller 4 rolls from the lower end to the upper end of the film assembly (protective film 6 and positioning film 7), applying a uniform pressure of 0.5-1N to press the protective film 6 onto the screen surface, maintaining a uniform speed during sliding. Finally, remove the remaining positioning film 7, reset the movable base 2, and remove the phone 5 to complete the screen protector application.

[0047] This screen protector applicator, through the cooperation of the sliding shaft 21 and the transition shaft 22, ensures that the movable slider 3 slides smoothly after being pulled out, a first in the industry. The dual-slot roller 4 (high slot 32, low slot 31) is compatible with mobile phones 5 with a thickness of 5-12mm, reducing material consumption by 30-50% and cost by 20-30%. The elastic positioning components (tail insert 11 spring and centering spring 24) have a positioning accuracy of ±0.2mm and an air bubble rate of less than 5%. The elastic limit hook 23 shortens the installation time to within 30 seconds, and the lightweight design (weight reduction hole 12, camera avoidance hole 25) reduces costs by 25-40%. It can be adapted to mobile phones 5 with a length of 120-180mm and is compatible with more than 95% of mainstream models. It has the advantages of smooth sliding, strong compatibility, accurate positioning, low cost, and easy installation, making it suitable for large-scale promotion and application.

[0048] It should be understood that this 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 its scope. The scope of this invention is limited only by the appended claims.

Claims

1. A simple and universal screen protector applicator, characterized in that: include A fixed base (1) has a mobile phone receiving cavity (15) in the middle and guide rails (16, 17) on both sides; a pull-out adjustable mobile base (2) is slidably connected to the guide rails (16, 17) of the fixed base (1); a movable slider (3) with rollers (4) is slidably installed on the fixed base (1) and the mobile base (2) to press the membrane assembly to the screen surface; The fixed base (1) and the movable base (2) are also equipped with positioning devices for the positioning mobile phone (5) and the membrane assembly (6,7); The bottom surfaces of the fixed base (1) and the movable base (2) are contact surfaces (27) on the same plane. The bottom of the movable slider (3) is provided with an abutment post (33) that slides in cooperation with the abutment surface (27).

2. The simple and universal screen protector applicator according to claim 1, characterized in that: The movable slider (3) is provided with a high groove (32) and a low groove (31), and rollers (4) of different diameters can be installed to accommodate the thickness difference of the mobile phone.

3. The simple and universal screen protector applicator according to claim 1, characterized in that: The positioning device includes a centering spring (24) on the movable base (2) and a tail plug (11) on the fixed base (1). The tail of the mobile phone (5) is fixed by the tail plug (11), and the head of the mobile phone is positioned in the center by the centering spring (24). It also includes a diaphragm positioning post (14) set on the fixed base (1) and a diaphragm hook (26) on the movable base (2).

4. The simple and universal screen protector applicator according to claim 3, characterized in that: The diaphragm hook (26) is lower than the diaphragm positioning post (14) so ​​that the positioning membrane (7) is placed at an angle.

5. The simple and universal screen protector applicator according to claim 1, characterized in that: The movable base (2) is provided with a sliding shaft (21) and a transition shaft (22). The sliding shaft (21) is used to cooperate with the first guide rail (16) to stably pull the movable base (2). The transition shaft (22) cooperates with the second guide rail (17) to transition the gap formed by pulling into a plane.

6. The simple and universal screen protector applicator according to claim 1, characterized in that: The movable base (2) is provided with an elastic limiting hook (23), and the movable slider (3) is limited by the elastic limiting hook (23) after installation.

7. The simple and universal screen protector applicator according to claim 3, characterized in that: The tail plug (11) is provided with an elastic spring, which can adapt to mobile phones of different thicknesses through elastic deformation; the central spring (24) is a double spring structure.

8. The simple and universal screen protector applicator according to claim 1, characterized in that: The fixed base (1) and the movable base (2) are respectively provided with a weight reduction hole (12) and a camera avoidance hole (25).

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