A film pasting auxiliary device, a film pasting device and a film pasting assembly
By designing inclined pads and limiting protrusions in the screen protector application aid, combined with venting grooves, the problem of air bubbles caused by tight contact between the screen and the protective film is solved, achieving an efficient and smooth screen protector application process.
Patent Information
- Application Number
- CN202521427585.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Priority Date
- 2025-01-16
- Filing Date
- 2025-07-08
- Publication Date
- 2026-08-04
- Estimated Expiration
- 2035-07-08
AI Technical Summary
In existing screen protector application devices, the screen and protective film are in close contact due to the weight of the electronic device, resulting in a lack of ventilation space, which easily leads to air bubbles. Furthermore, the deformation of the receiving groove affects the flatness of the applied film.
Design a film-applying auxiliary device, in which multiple pads with different heights are set on the bottom wall of the receiving groove, and the limiting protrusions at the bottom of the cavity groove have different heights, forming an inclined setting, which, combined with the venting groove, enables unilateral venting and prevents air bubbles from forming.
With its tilted design and venting grooves, air bubbles are effectively eliminated, ensuring a smooth and even fit between the screen protector and the screen, thus improving application efficiency and effectiveness.
Smart Images

Figure CN224589444U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of screen protectors for mobile terminals such as mobile phones and tablets, and specifically to a screen protector application auxiliary device, a screen protector applicator, and a screen protector application assembly. Background Technology
[0002] In daily life, people often apply screen protectors to the screens of smartphones, smartwatches, tablets, and other devices to prevent them from getting scratched or cracked.
[0003] To improve the accuracy of screen protector application, a screen protector application aid has been developed in the prior art. This aid includes a positioning base with a cavity groove for accommodating an electronic device. The bottom of the cavity groove has a receiving groove for holding the protective film. One side of the positioning base has an opening groove communicating with the cavity groove. When applying the screen protector to the electronic device, the protective film is first placed into the receiving groove of the application aid. The shape of the receiving groove matches the protective film, thus positioning it. Then, the electronic device is placed into the cavity groove, with its screen side pressed against the protective film. Finally, the handle on the protective film is pulled, causing the release liner on the protective film to be pulled out from the opening groove, achieving automatic application of the protective film.
[0004] In the aforementioned screen protector application aid, due to the weight of the electronic device, the screen and the protective film are in close contact, resulting in insufficient ventilation space between them. This can easily lead to air bubbles during application. Furthermore, the bottom wall of the receiving groove is attached to and supports the protective film. When the receiving groove deforms, the bottom wall becomes uneven, causing the protective film placed inside to also become uneven, which can affect the smoothness of the application. Utility Model Content
[0005] The purpose of this invention is to provide a film application auxiliary device, a film applicator, and a film application assembly to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides a film-applying auxiliary device, including a positioning seat with a receiving groove for placing a protective film. One side of the positioning seat has an opening groove that communicates with the receiving groove. The device is characterized in that a plurality of pads are provided on the bottom wall of the receiving groove, each pad protruding from the bottom wall of the receiving groove. The protrusion height of the pads farther from the opening groove is greater than that of the pads closer to the opening groove, so that the protective film is placed at an angle in the receiving groove.
[0007] Furthermore, the top of the receiving groove is provided with a cavity groove for accommodating electronic devices, and the bottom of the cavity groove is provided with a plurality of limiting protrusions for supporting electronic devices. The protrusion height of the limiting protrusions away from the opening groove is smaller than that of the limiting protrusions close to the opening groove, so that the electronic devices are tilted after being placed in the cavity groove. The sidewalls of the limiting protrusions are the sidewalls of the receiving groove.
[0008] Furthermore, a support platform is formed at the bottom of the opening groove, the support platform protrudes from the bottom wall of the receiving groove, and the support platform cooperates with the limiting protrusion to form a space for placing the protective film. Furthermore, the positioning seat is provided with an exhaust groove, which connects the cavity groove and the receiving groove, and the limiting protrusion is staggered with the exhaust groove.
[0009] Furthermore, the pad includes a first pad and a second pad, both of which are strip-shaped and arranged in parallel.
[0010] Furthermore, the bottom wall of the receiving groove is planar, the protrusion height of the first pad is 1mm to 2mm, and the protrusion height of the second pad is 0.5mm to 1.3mm.
[0011] Furthermore, the positioning seat includes a first end and a second end opposite to each other, the opening groove is provided at the first end, and the second end of the positioning seat is provided with a clearance groove for the ear of the protective film to be placed.
[0012] Furthermore, this application also provides a film applicator, including a packaging box and the aforementioned film applicator auxiliary device, wherein the positioning seat is placed inside the packaging box.
[0013] Furthermore, the packaging box includes a main body and a cover plate, the positioning seat is fixed on the main body, the cover plate can be closed onto the cavity groove, and a set of limiting pressure strips are provided on the side of the cover plate facing the cavity groove.
[0014] Furthermore, this application also provides a film application assembly, including a protective film and the aforementioned film applicator. The protective film includes an adhesive film and a release film. The adhesive film includes a protective surface and an adhesive surface. The release film is adhered to the adhesive surface. One end of the release film protrudes from the adhesive surface to form an ear, and the other end protrudes from the adhesive surface to form a handle. When the protective film is placed in the receiving groove, the adhesive film faces downward and the release film faces upward. The ear is located in the relief groove, and the handle protrudes from the opening groove. The release film is provided with a pull-out label. The beneficial effects of this utility model are as follows: 1. By using the height difference of the pads, the protective film is tilted relative to the electronic device after placement, raising it to one side higher than the other. This creates a triangular venting space and a release film removal space between the protective film and the electronic device screen. The higher end of the protective film will contact the screen first. Static electricity is generated during the release film removal process, and the lower end gradually vents and adheres to the screen due to this static electricity. Because the venting is unidirectional, there is no risk of air trapping, effectively eliminating air bubbles and ensuring a good adhesion. Furthermore, due to the elevation effect of the pads, even if the bottom of the receiving groove deforms and bulges, it will not affect the flatness of the applied film.
[0015] 2. The positioning seat is equipped with an exhaust groove, which connects the cavity groove and the receiving groove. When the receiving groove is used to place the protective film and the cavity groove is used to place electronic equipment, the exhaust groove makes it easier for external gas to enter the cavity, balance the internal and external pressure of the cavity, and avoid negative pressure adsorption, which is more conducive to the film application.
[0016] 3. A set of limiting strips is provided on the side of the cover plate facing the cavity groove. This can limit the electronic device when wiping the screen of the electronic device. In addition, when the cover plate is closed, the limiting strips can also close the opening groove to prevent the film accessories placed in the receiving groove from sliding down the opening groove. Attached Figure Description
[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0018] Figure 1 This is a schematic diagram of the overall structure of the film-applying auxiliary device provided in an embodiment of the present utility model; Figure 2 This is a schematic diagram of the overall structure of the film applicator provided in an embodiment of the present utility model; Figure 3 for Figure 1 Enlarged view of section A; Figure 4 This is a schematic diagram of the overall structure of the film-applying assembly provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the film application process of the film application component provided in an embodiment of the present utility model.
[0019] Explanation of reference numerals in the attached figures: 10. Positioning seat; 101. First end; 102. Second end; 11. Receiving groove; 111. Third pad; 12. Opening groove; 121. Support platform; 122. Limiting sidewall; 13. First pad; 14. Second pad; 15. Cavity groove; 16. Limiting protrusion; 17. Exhaust groove; 18. Relief groove; 19. Finger groove; 20. Packaging box; 21. Main body; 22. Cover plate; 23. Limiting strip; 30. Protective film; 31. Ear; 32. Handle; 40. Electronic equipment. Detailed Implementation
[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0024] Example 1 like Figure 1As shown, a film-applying auxiliary device provided in this embodiment of the present utility model includes a positioning seat 10, a receiving groove 11 provided on the positioning seat 10, the receiving groove 11 is used to place the protective film 30, an opening groove 12 is provided on one side of the positioning seat 10, the opening groove 12 communicates with the receiving groove 11, a plurality of pads are provided on the bottom wall of the receiving groove 11, the plurality of pads protrude from the bottom wall of the receiving groove 11, wherein the protrusion height of the pads away from the opening groove 12 is greater than the protrusion height of the pads close to the opening groove 12, so that the protective film 30 is inclined after being placed in the receiving groove 11.
[0025] By using the height difference of the pads, the protective film 30 is tilted relative to the electronic device 40 after placement, raising it to one side higher than the other. This creates a triangular venting space and a release film pulling space between the protective film 30 and the screen of the electronic device. The higher end of the protective film 30 will first contact the screen of the electronic device 40. Static electricity is generated during the removal of the release film, and the lower end will gradually vent and adhere to the screen due to static electricity. Because the venting is unidirectional, there is no risk of air trapping, and air bubbles can be effectively eliminated, resulting in a good adhesion. At the same time, due to the elevation effect of the pads, even if the bottom of the receiving groove 11 deforms and bulges, it will not affect the flatness of the film.
[0026] Specifically, the pads include a first pad 13 and a second pad 14, both of which are strip-shaped and parallel to each other. The bottom wall of the receiving groove 11 is planar. The protrusion height of the first pad 13 is 1mm to 2mm, preferably 1.5mm. The protrusion height of the second pad 14 is 0.5mm to 1.3mm, preferably 1.0mm. The top of the receiving groove 11 is provided with a cavity groove 15 for accommodating the electronic device 40. The bottom of the cavity groove 15 is provided with multiple limiting protrusions 16, which support the electronic device 40. The protrusion height of the limiting protrusions 16 farther from the opening groove 12 is smaller than that of the limiting protrusions 16 closer to the opening groove 12, so that the electronic device is tilted after being placed in the cavity groove 15. The sidewall of the limiting protrusion 16 is the sidewall of the receiving groove 11. At this time, the tilted protective film 30 can form a triangle with the display screen of the tilted electronic device 40, such as... Figure 5 As shown, the protective film 30, furthest from the opening slot 12, preferentially contacts and adheres to the display screen of the electronic device 40. When the release film is pulled out, the protective film 30 gradually adheres to the display screen of the electronic device 40 to fully remove air bubbles until the protective film 30 is completely adhered to the display screen of the electronic device 40. Figure 5As shown, the inclined protective film 30 can form a triangular venting space between itself and the display screen of the inclined electronic device 40 to fully expel air bubbles. The triangular space formed between the inclined protective film 30 and the display screen of the inclined electronic device 40 provides space for the release film to be pulled out, avoiding jamming of the release film during the pulling process and improving the film application efficiency.
[0027] In this embodiment, a support platform 121 is formed at the bottom of the opening groove 12. The support platform 121 protrudes from the bottom wall of the receiving groove 11. The support platform 121 and the limiting protrusion 16 cooperate to form a placement space for the protective film 30. Since there is a height difference between the support platform 121 and the bottom wall of the receiving groove 11, when the protective film 30 is placed in the receiving groove 11 and the release film is removed to apply the film to the electronic device 40, the support platform 121 acts as a blocking and limiting element, so the protective film 30 will not be pulled out along the opening groove 12. This ensures that the film application work can proceed normally. In order to limit the protective film during the film application process, the existing film application device sets a limiting post on the film application device and a corresponding limiting hole on the protective film. The film application auxiliary device provided in this embodiment does not need to set a limiting post and a limiting hole, which is simple in structure and saves costs.
[0028] In other embodiments, the tops of the plurality of limiting protrusions 16 are located on the same plane. After the electronic device 40 is placed in the cavity groove 15, the limiting protrusions 16 support the electronic device 40 so that it can be positioned horizontally. At this time, the inclined protective film 30 can form a triangular venting space and a release film pulling space between itself and the display screen of the electronic device 40.
[0029] In this embodiment, a third pad 111 is also provided at the middle position of the bottom wall of the receiving groove 11. The protrusion height of the third pad 111 is smaller than that of the first pad 13 and the second pad 14, respectively. The protrusion height of the third pad 111 is preferably 0.5mm. When the protective film 30 is placed in the receiving groove 11, the middle position of the bottom of the protective film 30 is suspended. This makes it easier for external air to enter the bottom of the protective film 30, which can easily balance the internal and external pressure, avoid the negative pressure adsorption effect, avoid affecting the film application effect, and make it easier to remove the protective film 30 in the receiving groove 11.
[0030] Furthermore, the positioning seat 10 is provided with an exhaust groove 17, which connects the cavity groove 15 and the receiving groove 11. The limiting protrusion 16 is staggered with the exhaust groove 17. The exhaust groove 17 allows external gas to enter the cavity more easily, which is more conducive to the film application. In this embodiment, the exhaust groove 17 is located on the side wall of the cavity groove 15 and the receiving groove 11. To ensure uniform exhaust, there are multiple exhaust grooves 17 arranged around the cavity groove 15. The staggered arrangement of the limiting block and the exhaust groove 17 results in a reasonable structural layout.
[0031] In other embodiments, the exhaust groove 17 can also be an independent hole structure. The exhaust groove 17 is directly opened on the positioning seat 10. The exhaust groove 17 connects the cavity groove 15 and the receiving groove 11, so that exhaust can be performed.
[0032] Furthermore, the positioning seat 10 includes a first end 101 and a second end 102 opposite to each other. An opening groove 12 is provided at the first end 101, and a clearance groove 18 is provided at the second end 102 of the positioning seat 10 for the ear 31 of the protective film 30 to be placed.
[0033] Specifically, the protective film 30 is a tempered glass film, which includes an adhesive film and a release film. The adhesive film includes a protective surface and an adhesive surface. The release film is adhered to the adhesive surface, with one end protruding from the adhesive surface to form an "ear" 31 and the other end protruding from the adhesive surface to form a handle 32. When the protective film 30 is placed in the receiving groove 11, the adhesive film faces down and the release film faces up. The "ear" 31 is located in the relief groove 18, and the handle 32 protrudes from the opening groove 12. The release film has a pull label to prompt the user to perform the pull operation. The electronic device 40 is then placed into the cavity groove 15 with the screen facing the protective film 30. After the electronic device 40 is placed, the protective film 30 and the electronic device 40 will form a triangular space. The higher end will first contact the screen of the electronic device 40, and the lower end will slowly vent and adhere due to the weight of the electronic device 40. When the adhesive film first contacts the screen, the venting will slowly vent from one end to the other, achieving uniform venting and solving the problem of airtightness in the tempered glass film. Because the exhaust is unilateral, there is no risk of trapped air.
[0034] Furthermore, a buffer airbag is provided inside the receiving groove 11 to protect the protective film 30. Since the protective film 30 is a tempered glass film, it needs to be protected to prevent breakage and damage. A ring-shaped protruding buffer airbag is provided directly on the bottom wall of the receiving groove 11, making the protective film 30 safer inside the receiving groove 11 and less susceptible to damage from external impacts.
[0035] Furthermore, the positioning seat 10 is provided with a finger groove 19, which is connected to the cavity groove 15. The finger groove 19 is located at the second end 102 of the positioning seat 10, and a finger can be inserted into the finger groove 19 to directly contact the electronic device 40 and remove the electronic device 40 after the film is applied.
[0036] The opening groove 12 includes two limiting sidewalls 122. The distance between the two limiting sidewalls 122 is less than the width of the cavity groove 15. This serves to limit and fix the installed electronic device 40, preventing the electronic device 40 from sliding out of the opening groove 12 during the film application process, thus affecting the film application effect.
[0037] Example 2 like Figure 2As shown, a film applicator provided as an embodiment of the present utility model includes a packaging box 20 and the film applicator auxiliary device described in Embodiment 1. The positioning seat 10 is placed inside the packaging box 20. The positioning seat 10 can be fixed inside the packaging box 20 by snap-fit or by adhesive.
[0038] Specifically, the packaging box 20 includes a main body 21 and a cover plate 22. The positioning seat 10 is fixed on the main body 21, and the fixing method can be adhesive fixation. During the film application operation, the cover plate 22 can be closed onto the cavity groove 15, and the electronic device 40 is limited by the cover plate 22, making the film application easier.
[0039] A set of limiting strips 23 are provided on the side of the cover plate 22 facing the cavity groove 15. This can limit the electronic device 40 when wiping the screen of the electronic device 40; in addition, when the cover plate 22 is closed, the limiting strips 23 can also close the opening groove 12 to prevent the film accessories placed in the receiving groove 11 from sliding down from the opening groove 12.
[0040] Example 3 like Figure 4 As shown, as an embodiment of this utility model, a film-applying assembly includes a protective film 30 and the film applicator described in Embodiment 2. The protective film 30 is a tempered glass film and includes an adhesive film and a release film. The adhesive film includes a protective surface and an adhesive surface. The release film is adhered to the adhesive surface. One end of the release film protrudes from the adhesive surface to form an ear 31, and the other end protrudes from the adhesive surface to form a handle 32. When the protective film 30 is placed in the receiving groove 11, the adhesive film faces down and the release film faces up. The ear 31 is located in the relief groove 18, and the handle 32 protrudes from the opening groove 12. The release film is provided with a pull-out label to prompt the user to perform a pull-out operation.
[0041] In this embodiment, the protective film 30 and the film applicator are sold simultaneously. The protective film 30 is placed in the receiving groove 11, and the positioning seat 10 is directly packaged in the packaging box 20. At this time, the film applicator acts as a protective sleeve, protecting the protective film 30, eliminating the need for an additional protective sleeve. When applying the film to the electronic device 40, the protective film 30 is first placed in the receiving groove 11 with the adhesive film facing down and the release film facing up, the ear 31 positioned in the relief groove 18, and the handle 32 protruding from the opening groove 12. Then, the electronic device 40 is placed in the cavity groove 15, with the screen side of the electronic device 40 pressing against the protective film 30. After the electronic device 40 is placed, the protective film 30 will form a triangular space with the electronic device 40. Pulling the handle 32 will separate the release film from the adhesive film and pull it out from the opening slot 12. The adhesive surface of the adhesive film will be exposed. The higher end will first contact the screen of the electronic device 40 for contact and adhesion, while the lower end will slowly vent and adhere due to the weight of the electronic device 40, achieving uniform venting and solving the problem of airtightness in tempered glass film adhesion, thus realizing automatic adhesion of the protective film 30.
[0042] Compared to existing technologies, the protrusion height of the first pad 13 is greater than that of the second pad 14, causing the protective film 30 to be tilted relative to the placed electronic device 40 after placement, thus raising the protective film 30 to one side higher than the other. The higher end of the protective film 30 will first contact the screen of the electronic device 40. Static electricity will be generated during the process of peeling off the release film, and the lower end will gradually vent and adhere to the screen due to static electricity. Since the venting is unidirectional, there is no risk of trapped air, which can effectively remove air bubbles and achieve a good adhesion effect. At the same time, due to the raising effect of the first pad 13 and the second pad 14, even if the bottom of the receiving groove 11 deforms and bulges, it will not affect the flatness of the film.
[0043] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A film-applying auxiliary device, comprising a positioning seat (10), wherein the positioning seat (10) is provided with a receiving groove (11) for placing a protective film (30), and an opening groove (12) is provided on one side of the positioning seat (10) communicating with the receiving groove (11), characterized in that, The bottom wall of the receiving groove (11) is provided with a plurality of pads, and the plurality of pads protrude from the bottom wall of the receiving groove (11). The protrusion height of the pads away from the opening groove (12) is greater than that of the pads close to the opening groove (12), so that the protective film (30) is placed at an angle after being placed in the receiving groove (11).
2. The film-applying auxiliary device as described in claim 1, characterized in that, The top of the receiving groove (11) is provided with a cavity groove (15), which is used to accommodate an electronic device (40). The bottom of the cavity groove (15) is provided with a plurality of limiting protrusions (16), which support the electronic device (40). The protrusion height of the limiting protrusions (16) away from the opening groove (12) is smaller than that of the limiting protrusions (16) close to the opening groove (12), so that the electronic device is tilted after being placed in the cavity groove (15). The sidewall of the limiting protrusion (16) is the sidewall of the receiving groove (11).
3. The film-applying auxiliary device as described in claim 2, characterized in that, A support platform (121) is formed at the bottom of the opening groove (12). The support platform (121) protrudes from the bottom wall of the receiving groove (11). The support platform (121) and the limiting protrusion (16) cooperate to form a space for placing the protective film (30).
4. The film-applying auxiliary device as described in claim 2, characterized in that, The positioning seat (10) is provided with an exhaust groove (17), which connects the cavity groove (15) and the receiving groove (11). The limiting protrusion (16) is staggered with the exhaust groove (17).
5. The film-applying auxiliary device as described in claim 2, characterized in that, The pad includes a first pad (13) and a second pad (14), both of which are arranged in strip shape and are parallel to each other.
6. The film-applying auxiliary device as described in claim 5, characterized in that, The bottom wall of the receiving groove (11) is flat, the protrusion height of the first pad (13) is 1mm to 2mm, and the protrusion height of the second pad (14) is 0.5mm to 1.3mm.
7. The film-applying auxiliary device as described in claim 1, characterized in that, The positioning seat (10) includes a first end (101) and a second end (102) opposite to each other. The opening groove (12) is provided at the first end (101). The second end (102) of the positioning seat (10) is provided with a relief groove (18) for the ear (31) of the protective film (30) to be placed.
8. A film applicator, characterized in that, The device includes a packaging box (20) and a film-applying auxiliary device as described in any one of claims 1 to 7, wherein the positioning seat (10) is placed inside the packaging box (20).
9. The film applicator as described in claim 8, characterized in that, The packaging box (20) includes a main body (21) and a cover plate (22). The positioning seat (10) is fixed on the main body (21). The cover plate (22) can be closed onto the cavity groove (15). A set of limiting strips (23) is provided on the side of the cover plate (22) facing the cavity groove (15).
10. A film-applied assembly, characterized in that, The device includes a protective film (30) and a film applicator as described in claim 8. The protective film (30) includes an adhesive film and a release film. The adhesive film includes a protective surface and an adhesive surface. The release film is adhered to the adhesive surface. One end of the release film protrudes from the adhesive surface to form an ear (31), and the other end protrudes from the adhesive surface to form a handle (32). When the protective film (30) is placed in the receiving groove (11), the adhesive film faces downward and the release film faces upward. The ear (31) is located in the relief groove (18), and the handle (32) protrudes from the opening groove (12). The release film is provided with a pull-out label.