Anti-bubble sticker pasting device

Abstract

The utility model discloses a kind of anti-bubble film applicators, including film applicator main body and film roll pressing assembly, there is locating groove on film applicator main body, the both ends of film applicator main body are respectively provided with first clamping piece and second clamping piece, film roll pressing assembly is slidably connected with film applicator main body, the second end of film applicator main body is provided with protruding structure, protruding structure is used to lift the second end of the locating film of protection film assembly and make the second end bottom surface of protection film and the screen between mobile phone exist gap, when film roll pressing assembly is slid from the first end of film applicator main body to the second end of film applicator main body, the protection film in protection film assembly is laminated on the screen of mobile phone.This kind of anti-bubble film applicator has the advantages of simple structure, low implementation cost, can avoid film bubbling when applying, convenient to use, effectively reduce the situation that protection film is ineffective or protection film is damaged due to film bubbling, use experience is good.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone screen protectors, and in particular to an anti-bubbling screen protector applicator. Background Technology

[0002] A screen protector applicator is a common auxiliary product for applying screen protectors to mobile phones.

[0003] There are many types of screen protector applicators available. However, existing screen protector applicators generally suffer from complex structures, high production costs, and a tendency to create bubbles during application. Users need to spend a lot of effort to remove these bubbles, which is not only inconvenient but also easily leads to the failure or damage of the screen protector. This results in poor flexibility and a poor user experience.

[0004] In view of this, the purpose of this utility model is to provide a new technical solution to solve the existing technical problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides an anti-bubbling film applicator, which effectively solves the technical defects of existing film applicators such as complex structure, high implementation cost, easy to cause bubbles when applying film, inconvenience of use, and poor user experience.

[0006] The technical solution adopted by this utility model to solve its technical problem is: An anti-bubbling screen protector applicator includes an applicator body and an applicator roller assembly for use with the applicator body. The applicator body has a positioning groove for positioning a mobile phone to be covered. The applicator body has a first latching member and a second latching member at its two ends along its long side, which are used to latch the two ends of the positioning film of the protective film assembly. The applicator roller assembly is slidably connected to the applicator body and is used to slide from the first end to the second end of the applicator body to realize the screen protector application process. The second end of the applicator body has a protruding structure, which is used to lift the second end of the positioning film of the protective film assembly and create a gap between the bottom surface of the second end of the protective film of the protective film assembly and the screen of the mobile phone located in the positioning groove. When the applicator roller assembly slides from the first end to the second end of the applicator body, the protective film in the protective film assembly is adhered to the screen of the mobile phone.

[0007] As a further improvement to the above technical solution, the main body of the film applicator is provided with a first long side positioning block, a second long side positioning block, a first short side positioning block and a second short side positioning block on the inner sidewall of its positioning groove. The first long side positioning block and the second long side positioning block are respectively disposed on the two inner sidewalls along the long side direction in the positioning groove, and the first short side positioning block and the second short side positioning block are respectively disposed on the two inner sidewalls along the short side direction in the positioning groove. The first long side positioning block and the second long side positioning block are respectively used to position the two long sides of the mobile phone, and the first short side positioning block and the second short side positioning block are respectively used to position the two short sides of the mobile phone.

[0008] As a further improvement to the above technical solution, both the first long-side positioning block and the second long-side positioning block are provided with long-side positioning notches, and both the first short-side positioning block and the second short-side positioning block are provided with short-side positioning notches. The long-side positioning notches and the short-side positioning notches are both L-shaped positioning notches.

[0009] As a further improvement to the above technical solution, the first end of the film applicator body is provided with a clearance groove, and the clearance groove is provided with a first elastic part connected to both ends of the clearance groove. The first snap-fit ​​member is provided on the first elastic part. The second end of the film applicator body is provided with a second elastic part, and the second snap-fit ​​member is provided on the second elastic part.

[0010] As a further improvement to the above technical solution, the first elastic part is a long strip-shaped component. The two ends of the first elastic part have first connecting strips and are connected to the two ends of the clearance groove through the first connecting strips at both ends. A narrow first clearance gap is provided between the first connecting strips and the clearance groove. The second end of the film applicator body extends outward with a protrusion. The second elastic part is disposed at the protrusion. The second snap-fit ​​member is disposed at the free end of the second elastic part. A second clearance gap is provided between the second elastic part and the second end of the film applicator body.

[0011] As a further improvement to the above technical solution, there are two of each of the first and second snap-fit ​​components, and the two first snap-fit ​​components are configured as connectors with different shapes and sizes.

[0012] As a further improvement to the above technical solution, the film-applying roller assembly includes a film-applying roller and a film-applying roller mounting base. The film-applying roller is rotatably mounted on the film-applying roller mounting base and is used to roll the protective film assembly to apply the protective film in the protective film assembly to the screen of the mobile phone. The film-applying roller mounting base is slidably connected to the film applicator body.

[0013] As a further improvement to the above technical solution, a film-applying guide rail is provided on the outer side wall of the main body of the film applicator along its long side. The film-applying roller mounting base includes a mounting base main body and mounting base connecting plates connected to both ends of the mounting base main body. A mounting base guide block is provided on the inner side wall of the mounting base connecting plate. Two guide protrusions are provided on the mounting base guide block. The guide protrusions slide against the lower side wall of the film-applying guide rail and form a sliding connection structure with the lower side wall of the film-applying guide rail.

[0014] As a further improvement to the above technical solution, during the process of the film-applying roller assembly sliding from the first end of the film applicator body to the second end of the film applicator body, the film-applying guide rail is configured to gradually reduce the distance between the film-applying roller in the film-applying roller assembly and the screen of the mobile phone in the positioning groove.

[0015] As a further improvement to the above technical solution, a protective film assembly is also included. The protective film assembly includes a protective film, a positioning film, and a release film. The positioning film and the release film are respectively attached to the upper and lower sides of the protective film. The positioning film includes a positioning film body and a first positioning part and a second positioning part extending outward from both ends of the positioning film body. A first positioning hole is provided on the first positioning part, and a second positioning hole is provided on the second positioning part. The first positioning hole is used to be engaged with the first snap-fit ​​member, and the second positioning hole is used to be engaged with the second snap-fit ​​member. A notch with a reduced cross-section is provided between the second positioning part and the positioning film body. The release film includes a release film pull part that facilitates tearing it off.

[0016] The beneficial effects of this utility model are as follows: This utility model provides an anti-bubble screen protector applicator, which includes an applicator body and an applicator roller assembly. It has the advantages of simple structure, convenient implementation, and low cost. Furthermore, the applicator body is provided with a protruding structure for lifting the second end of the protective film. Utilizing this protruding structure, during the rolling process of the protective film, the second end of the protective film will not contact the phone screen before the rolling part, thus avoiding the situation where the second end of the protective film contacts the phone screen first and causes bubbles to form on the product. This effectively improves the technical problem of existing screen protector applicators being prone to bubbling.

[0017] In summary, this anti-bubbling film applicator effectively solves the technical defects of existing film applicators, such as complex structure, high implementation cost, easy bubbling during application, inconvenience of use, and poor user experience. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is an assembly diagram of the present invention; Figure 2 yes Figure 1 A magnified view of part A in the image; Figure 3 This is an assembly diagram of the present invention from another angle; Figure 4 yes Figure 3 A magnified view of part B in the image; Figure 5 This is a schematic diagram of the structure of the film applicator body in this utility model; Figure 6 This is a schematic diagram of the film-applying roller assembly in this utility model; Figure 7 This is a schematic diagram showing the state of the anti-bubbling screen protector after it has been inserted into the mobile phone and the protective film assembly has been fixed in place. Figure 8 yes Figure 7 The structural breakdown diagram.

[0020] Figure label: 1. Film applicator body; 10. Positioning groove; 101. First long side positioning block; 102. Second long side positioning block; 103. First short side positioning block; 104. Second short side positioning block; 11. First snap-fit ​​component; 12. Second snap-fit ​​component; 13. Protruding structure; 14. Clearance groove; 141. First clearance gap; 15. First elastic part; 151. First connecting strip; 16. Second elastic part; 161. Protrusion; 162. Second clearance gap; 17. Film applicator guide rail; 171. Arc-shaped bend; 18. Baffle; 181 1. Notch, 191. Camera clearance groove, 192. Removal groove; 2. Film application roller assembly, 21. Film application roller, 22. Film application roller mounting base, 221. Mounting base body, 222. Mounting base connecting plate, 223. Mounting base guide block, 224. Guide protrusion; 3. Protective film assembly, 31. Protective film, 32. Positioning film, 321. Positioning film body, 322. First positioning part, 3221. First positioning hole, 323. Second positioning part, 3231. Second positioning hole, 33. Release film, 331. Release film stretching part. Detailed Implementation

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other, as described above. Figure 1-8 . Reference Figure 1-4 , Figure 7 , Figure 8 An anti-bubbling screen protector applicator includes an applicator body 1 and an applicator roller assembly 2 used in conjunction with the applicator body 1. The applicator body 1 has a positioning groove 10 for positioning a mobile phone 4 to be covered with the screen protector. The applicator body 1 has a first latching member 11 and a second latching member 12 at its two ends along its long side. The first latching member 11 and the second latching member 12 are used to latch the two ends of the positioning film 32 of the protective film assembly 3. The applicator roller assembly 2 is slidably connected to the applicator body 1 and is used to slide from the first end of the applicator body 1. The second end of the screen protector body 1 is provided with a protruding structure 13. The protruding structure 13 is used to lift the second end of the positioning film 32 of the protective film assembly 3 and make the bottom surface of the second end of the protective film 31 of the protective film assembly 3 and the screen of the mobile phone 4 located in the positioning groove 10. When the screen protector roller assembly 2 slides from the first end of the screen protector body 1 to the second end of the screen protector body 1, the protective film 31 in the protective film assembly 3 is adhered to the screen of the mobile phone 4.

[0022] It should be noted that in this embodiment, the screen protector body 1, mobile phone 4, protective film assembly 3, protective film 31, positioning film 32, and release film 33 all have a first end and a second end, and the first end and the second end of the screen protector body 1, mobile phone 4, protective film assembly 3, protective film 31, positioning film 32, and release film 33 are correspondingly arranged, that is, the first end of the screen protector body 1, mobile phone 4, protective film assembly 3, protective film 31, positioning film 32, and release film 33 is located in the same direction, and the second end of the screen protector body 1, mobile phone 4, protective film assembly 3, protective film 31, positioning film 32, and release film 33 is located in another direction.

[0023] Reference Figure 7 , Figure 8In specific implementation of this utility model, when it is necessary to apply a screen protector to mobile phone 4, mobile phone 4 is placed into the positioning groove 10 of the screen protector body 1. After mobile phone 4 is positioned by the positioning groove 10, the corresponding protective film assembly 3 is loaded onto the screen protector body 1. Specifically, the release film 33 of the protective film assembly 3 faces the screen of mobile phone 4, and the two ends of the positioning film 32 are respectively fastened to the first clip 11 and the second clip 12 to achieve the installation and positioning of the entire protective film assembly 3. Further, after the protective film assembly 3 is positioned, the release film 33 is peeled off, and the bottom surface of the protective film 31 is directly opposite the screen of mobile phone 4. At this time, the film-applying roller assembly 2 starts rolling the upper surface of the protective film assembly 3 from the first end (i.e., the end away from the raised structure 13) of the film applicator body 1. During the rolling process of the film-applying roller assembly 2 from the first end of the film applicator body 1 towards the second end of the film applicator body 1, due to the action of the raised structure 13, the raised structure 13 will push the second end of the positioning film 32 upward by a certain distance, thereby causing the second end of the protective film 31 in the protective film assembly 3 to also be pushed up by a certain distance. In this way, the second end of the protective film 31 will not contact the second end of the mobile phone 4 screen. The protective film 31 only begins to contact the mobile phone 4 screen where it is rolled by the film-applying roller assembly 2. This avoids the situation of film bubbles caused by the second end of the protective film 31 contacting the mobile phone 4 screen first, greatly improving the film application quality, increasing the film application efficiency, and making it more convenient to use. On the other hand, since the protruding structure 13 exerts a pushing effect on the second end of the positioning film 32, when the film-applying roller 21 in the film-applying roller assembly 2 gradually rolls to a position close to the protruding structure 13, the resistance of the positioning film 32, which is pushed up by the protruding structure 13, to the film-applying roller 21 will increase, requiring a greater force to be applied to the film-applying roller 21. The speed of the film-applying roller 21 will slow down, and this slowing down process is more conducive to the elimination of bubbles, which helps to eliminate bubbles, avoid film bubbling, and improve the quality of film application.

[0024] Reference Figure 1 , Figure 3 In this technical solution, the raised structure 13 is configured to protrude upwards from the middle of the second end of the film applicator body 1. The protrusion distance of the raised structure 13 is sufficient to ensure a slight gap between the second end of the protective film 31 and the screen of the mobile phone 4 during the film application process. In other embodiments, the raised structure 13 can also be configured in other forms as needed. As long as the function of the raised structure 13 is the function described above in this technical solution, it falls within the protection scope of this utility model regardless of its structural form.

[0025] Reference Figure 1 , Figure 3In some specific embodiments, the film applicator body 1 is provided with a first long side positioning block 101, a second long side positioning block 102, a first short side positioning block 103, and a second short side positioning block 104 on the inner sidewall of its positioning groove 10. The first long side positioning block 101 and the second long side positioning block 102 are respectively disposed on the two inner sidewalls along the long side direction in the positioning groove 10, and the first short side positioning block 103 and the second short side positioning block 104 are respectively disposed on the two inner sidewalls along the short side direction in the positioning groove 10. The first long side positioning block 101 and the second long side positioning block 102 are respectively used to position the two long sides of the mobile phone 4, and the first short side positioning block 103 and the second short side positioning block 104 are respectively used to position the two short sides of the mobile phone 4. In this embodiment, there are three of each of the first long side positioning block 101 and the second long side positioning block 102, and two of each of the first short side positioning block 103 and the second short side positioning block 104. Specifically, in this embodiment, the implementer can also set the specific number of the first long side positioning block 101, the second long side positioning block 102, the first short side positioning block 103 and the second short side positioning block 104 according to actual needs, as long as it can achieve accurate positioning of the long and short sides of the mobile phone 4 to ensure the film application accuracy.

[0026] Reference Figure 1 , Figure 3 In this embodiment, both the first long-side positioning block 101 and the second long-side positioning block 102 are provided with long-side positioning notches, and both the first short-side positioning block 103 and the second short-side positioning block 104 are provided with short-side positioning notches. Both the long-side and short-side positioning notches are L-shaped positioning notches. In some other embodiments, the implementer can set the specific shape and size of the long-side and short-side positioning notches according to the different sizes and shapes of the mobile phone, resulting in strong versatility.

[0027] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4In some specific embodiments, the first end of the film applicator body 1 is provided with a clearance groove 14, and a first elastic part 15 is provided in the clearance groove 14, connecting the two ends of the clearance groove 14. The first snap-fit ​​member 11 is provided on the first elastic part 15, and the second end of the film applicator body 1 is provided with a second elastic part 16, and the second snap-fit ​​member 12 is provided on the second elastic part 16. By providing the first snap-fit ​​member 11 and the second snap-fit ​​member 12 respectively through the first elastic part 15 and the second elastic part 16, when the positioning film 32 of the protective film assembly 3 is snapped with the first snap-fit ​​member 11 and the second snap-fit ​​member 12, the first elastic part 15 and the second elastic part 16 will provide an appropriate tension force to both ends of the positioning film 32. This tension force can ensure that the protective film assembly 3 maintains an appropriate tension during the film application process, which is beneficial to improving the film application quality and reducing film bubbling.

[0028] Reference Figure 1-4 In some specific embodiments, the first elastic part 15 is an elongated strip-shaped component. The two ends of the first elastic part 15 have first connecting strips 151, which connect to the two ends of the clearance groove 14. A narrow first clearance gap 141 is provided between the first connecting strips 151 and the clearance groove 14. A protrusion 161 extends outward from the second end of the applicator body 1. The second elastic part 16 is disposed at the protrusion 161. The second snap-fit ​​member 12 is disposed at the free end of the second elastic part 16. A second clearance gap 162 is provided between the second elastic part 16 and the second end of the applicator body 1. Through the above structural design of the first elastic part 15 and the second elastic part 16, suitable elastic deformation function is ensured, thereby providing suitable tension force for the protective film assembly 3.

[0029] Reference Figure 1-4 In some specific embodiments, there are two of each of the first latching member 11 and the second latching member 12. The two first latching members 11 are configured as connectors with different shapes and sizes. The use of two first latching members 11 with different sizes and shapes can achieve a foolproof design, preventing the protective film assembly 3 from being placed upside down. In addition, the spacing between the two first latching members 11 is different from the spacing between the two second latching members 12, which can prevent the protective film assembly 3 from being placed in the left-right direction, thus also achieving a foolproof function.

[0030] Reference Figure 1 , Figure 3 , Figure 6In some specific embodiments, the film-applying roller assembly 2 includes an film-applying roller 21 and a film-applying roller mounting base 22. The film-applying roller 21 is rotatably mounted on the film-applying roller mounting base 22 and is used to roll the protective film assembly 3 to adhere the protective film 31 in the protective film assembly 3 to the screen of the mobile phone 4. The film-applying roller mounting base 22 is slidably connected to the film applicator body 1. In application, as the film-applying roller assembly 2 gradually moves from the first end of the film applicator body 1 to the second end of the film applicator body 1, the film-applying roller 21 always rolls against the upper surface of the protective film assembly 3 and presses the lower surface of the protective film 31 against the screen of the mobile phone 4 to achieve film application. In this embodiment, the surface of the film-applying roller 21 has elastic deformation function, that is, it can be wrapped with elastic material or installed in the form of elastic support to ensure that the film-applying roller 21 will not damage the protective film 31 or the mobile phone 4 during the film application process.

[0031] Reference Figure 1 , Figure 3 , Figure 5 In some specific embodiments, the outer wall of the film applicator body 1 along its long side is provided with a film applicator guide rail 17. The film applicator roller mounting base 22 includes a mounting base body 221 and mounting base connecting plates 222 connected to both ends of the mounting base body 221. The inner wall of the mounting base connecting plate 222 is provided with a mounting base guide block 223. The mounting base guide block 223 is provided with two guide protrusions 224. The guide protrusions 224 slide against the lower side wall of the film applicator guide rail 17 and form a sliding connection structure with the lower side wall of the film applicator guide rail 17. In this technical solution, two guide protrusions 224 are provided on both sides of the film applicator roller mounting base 22 to cooperate with the film applicator guide rail 17. The two guide protrusions 224 form a more stable guiding constraint, which can further improve the stability and reliability of film applicator.

[0032] Reference Figure 1 , Figure 3 , Figure 5In some specific embodiments, as the film-applying roller assembly 2 slides from the first end of the film applicator body 1 to the second end of the film applicator body 1, the film-applying guide rail 17 is configured to gradually reduce the distance between the film-applying roller 21 in the film-applying roller assembly 2 and the screen of the mobile phone 4 in the positioning groove 10. Specifically, at the first end of the film applicator body 1, the film-applying guide rail 17 exerts less downward pressure on the film-applying roller 21, preventing excessive pressure on the first end of the protective film 31 when the film-applying roller 21 just rolls to it. This avoids the second end of the protective film 31 from lifting due to excessive pressure on the first end, and also prevents damage to the adhesive on the bottom periphery of the protective film 31 due to the lifting of the protective film 31, thus protecting the protective film. On the other hand, by utilizing the gradually reducing distance structure, the film-applying roller 21 can have a greater downward stroke as it gradually approaches the raised structure 13 to overcome the resistance caused by the raised structure 13 lifting the positioning film 32, ensuring the quality of film application. In this embodiment, the gradually decreasing spacing structure is configured such that the size of the film-applying guide rail 17 gradually increases as it moves from the first end to the second end of the film applicator body 1. In some other embodiments, the gradually decreasing spacing structure can also be configured in other structural forms. For example, the gradually decreasing spacing structure can also be configured such that the film-applying guide rail 17 is inclined downwards as it moves from the first end to the second end of the film applicator body 1. All other structural designs based on the above design concept are within the protection scope of this utility model and will not be described in detail here.

[0033] Reference Figure 1 , Figure 3 , Figure 5 In this embodiment, the film-applying guide rail 17 is provided with an arc-shaped bending portion 171 at the first end of the film applicator body 1. The film applicator roller assembly 2 slides to the arc-shaped bending portion 171 before film application begins. The second end sidewall of the film applicator body 1 is provided with a baffle 18 that is adapted to the second end of the film-applying guide rail 17. There is a notch 181 between the baffle 18 and the second end of the film applicator guide rail 17. The notch 181 is used for the film applicator roller assembly 2 to be pulled out from the film applicator body 1 after film application is completed.

[0034] Reference Figure 7 , Figure 8In some specific embodiments, the anti-bubbling film applicator further includes a matching protective film assembly 3. The protective film assembly 3 includes a protective film 31, a positioning film 32, and a release film 33. The positioning film 32 and the release film 33 are respectively attached to the upper and lower sides of the protective film 31. The positioning film 32 includes a positioning film body 321 and a first positioning portion 322 and a second positioning portion 323 extending outward from both ends of the positioning film body 321. The first positioning portion 322 has a first positioning hole 3221, and the second positioning portion 323 has a second positioning hole 3231. The second positioning hole 3231 is used to engage with the second positioning member 12 and is used to be snapped onto the first snap-fit ​​member 11. A notch 324 with a reduced cross-section is provided between the second positioning part 323 and the positioning film body 321. The reduced cross-section notch 324 reduces the deformation capacity of the positioning film 32, allowing the positioning film 32 to undergo a certain stretching deformation at the reduced cross-section notch 324 during the film application process. This ensures that the positioning film 32 does not generate excessive resistance during film application due to deformation difficulties, and also prevents deformation of the positioning film body 321 during the film application process, which would affect the film application quality. The release film 33 includes a release film pulling part 331 for easy removal. The release film 33 can be easily removed by pulling the release film pulling part 331.

[0035] Reference Figure 1 , Figure 3 In addition, the screen protector body 1 is also provided with a camera avoidance groove 191 and a removal groove 192. The camera avoidance groove 191 is used to avoid the camera module on the back of the mobile phone 4, and the removal groove 192 is used to facilitate the removal of the mobile phone 4 from the screen protector body 1.

[0036] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. An anti-bubbling film applicator, characterized in that: The device includes a screen protector body (1) and a screen protector roller assembly (2) used in conjunction with the screen protector body (1). The screen protector body (1) has a positioning groove (10) for positioning the mobile phone (4) to be screen protected. The screen protector body (1) has a first snap-fit ​​member (11) and a second snap-fit ​​member (12) at both ends of its long side. The first snap-fit ​​member (11) and the second snap-fit ​​member (12) are used to snap-fit ​​the two ends of the positioning film (32) of the protective film assembly (3). The screen protector roller assembly (2) is slidably connected to the screen protector body (1) and is used to slide from the first end of the screen protector body (1) onto the screen protector. The second end of the device body (1) is used to realize the film application process. The second end of the film applicator body (1) is provided with a protruding structure (13). The protruding structure (13) is used to lift the second end of the positioning film (32) of the protective film assembly (3) and make the bottom surface of the second end of the protective film (31) of the protective film assembly (3) and the screen of the mobile phone (4) located in the positioning groove (10) have a gap. When the film application roller assembly (2) slides from the first end of the film applicator body (1) to the second end of the film applicator body (1), the protective film (31) in the protective film assembly (3) is applied to the screen of the mobile phone (4).

2. The anti-bubbling film applicator according to claim 1, characterized in that: The main body (1) of the film applicator is provided with a first long side positioning block (101), a second long side positioning block (102), a first short side positioning block (103) and a second short side positioning block (104) on the inner side wall of its positioning groove (10). The first long side positioning block (101) and the second long side positioning block (102) are respectively provided on the two inner side walls along the long side direction in the positioning groove (10). The first short side positioning block (103) and the second short side positioning block (104) are respectively provided on the two inner side walls along the short side direction in the positioning groove (10). The first long side positioning block (101) and the second long side positioning block (102) are respectively used to position the two long sides of the mobile phone (4). The first short side positioning block (103) and the second short side positioning block (104) are respectively used to position the two short sides of the mobile phone (4).

3. The anti-bubbling film applicator according to claim 2, characterized in that: Both the first long-side positioning block (101) and the second long-side positioning block (102) are provided with long-side positioning notches, and both the first short-side positioning block (103) and the second short-side positioning block (104) are provided with short-side positioning notches. Both the long-side positioning notches and the short-side positioning notches are L-shaped positioning notches.

4. The anti-bubbling film applicator according to claim 1, characterized in that: The first end of the film applicator body (1) is provided with a clearance groove (14), and the clearance groove (14) is provided with a first elastic part (15) connected to both ends of the clearance groove (14). The first snap-fit ​​member (11) is provided on the first elastic part (15). The second end of the film applicator body (1) is provided with a second elastic part (16), and the second snap-fit ​​member (12) is provided on the second elastic part (16).

5. The anti-bubbling film applicator according to claim 4, characterized in that: The first elastic part (15) is a long strip-shaped component. The first elastic part (15) has a first connecting strip (151) at both ends and is connected to the two ends of the clearance groove (14) through the first connecting strip (151) at both ends. A narrow first clearance gap (141) is provided between the first connecting strip (151) and the clearance groove (14). The second end of the applicator body (1) extends outward with a protrusion (161). The second elastic part (16) is provided at the protrusion (161). The second snap-fit ​​member (12) is provided at the free end of the second elastic part (16). A second clearance gap (162) is provided between the second elastic part (16) and the second end of the applicator body (1).

6. The anti-bubbling film applicator according to claim 1, characterized in that: There are two of the first snap-fit ​​connector (11) and the second snap-fit ​​connector (12), and the two first snap-fit ​​connectors (11) are configured as connectors with different shapes and sizes.

7. The anti-bubbling film applicator according to claim 1, characterized in that: The film-applying roller assembly (2) includes a film-applying roller (21) and a film-applying roller mounting base (22). The film-applying roller (21) is rotatably mounted on the film-applying roller mounting base (22) and is used to roll the protective film assembly (3) to apply the protective film (31) in the protective film assembly (3) to the screen of the mobile phone (4). The film-applying roller mounting base (22) is slidably connected to the film applicator body (1).

8. The anti-bubbling film applicator according to claim 7, characterized in that: The outer side wall of the film applicator body (1) in the long direction is provided with a film applicator guide rail (17). The film applicator roller mounting base (22) includes a mounting base body (221) and mounting base connecting plates (222) connected to both ends of the mounting base body (221). The inner side wall of the mounting base connecting plate (222) is provided with a mounting base guide block (223). The mounting base guide block (223) is provided with two guide protrusions (224). The guide protrusions (224) slide against the lower side wall of the film applicator guide rail (17) and form a sliding connection structure with the lower side wall of the film applicator guide rail (17).

9. The anti-bubbling film applicator according to claim 8, characterized in that: As the film-applying roller assembly (2) slides along the first end of the film applicator body (1) to the second end of the film applicator body (1), the film-applying guide rail (17) is configured to gradually reduce the distance between the film-applying roller (21) in the film-applying roller assembly (2) and the screen of the mobile phone (4) in the positioning groove (10).

10. The anti-bubbling film applicator according to claim 1, characterized in that: It also includes a protective film assembly (3) for use with it. The protective film assembly (3) includes a protective film (31), a positioning film (32) and a release film (33). The positioning film (32) and the release film (33) are respectively attached to the upper and lower sides of the protective film (31). The positioning film (32) includes a positioning film body (321) and a first positioning part (322) and a second positioning part (323) extending outward from both ends of the positioning film body (321). The first positioning part (322) has a first positioning... The second positioning part (323) has a second positioning hole (3231), the first positioning hole (3221) is used to be locked on the first snap-fit ​​member (11), the second positioning hole (3231) is used to be locked on the second snap-fit ​​member (12), a notch (324) with a reduced cross section is provided between the second positioning part (323) and the positioning film body (321), and the release film (33) includes a release film pulling part (331) that is easy to tear off.

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