Film pasting box

By designing a recessed groove and a receiving groove inside the film application box, automatic alignment of the electronic device and the protective film assembly is achieved, solving the problem of requiring additional tools in the prior art and improving the convenience and accuracy of film application.

CN223972935UActive Publication Date: 2026-03-06DONGGUAN XINGWANG SHENGTONG ELECTRONIC TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Currently, screen protectors for electronic devices usually need to be purchased separately or applied using specialized tools, which is inconvenient.

Method used

Design a film application box, comprising a box body, a protective film assembly, and a cover. The box body has a recess and a receiving slot. The recess is used to fix electronic devices. The protective film assembly is stacked. The cover is rotatably connected to the box body to realize automatic alignment and film application operation.

Benefits of technology

No additional screen protector application tools are required, simplifying the process, improving the convenience and accuracy of application, and enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a film pasting box and relates to the technical field of film pasting tools, the film pasting box comprises a box body, a protective film assembly and a cover body, the box body is provided with a sinking groove, the groove bottom of the sinking groove is sunken to form a containing groove, and the containing groove is used for placing electronic equipment; the protective film assembly is placed in the sinking groove; the cover body is rotationally connected with the box body. According to the technical scheme, the sinking groove and the containing groove which are of the two-stage sunken structure are formed in the box body of the film pasting box, the electronic equipment is fixed through the containing groove, the protective film assembly is contained in the sinking groove, and automatic alignment of the electronic equipment and the protective film assembly is achieved. A user only needs to place the electronic equipment into the containing groove, the packaging box of the protective film assembly can be directly used for completing film pasting operation, a special film pasting tool does not need to be additionally purchased, and therefore the film pasting convenience is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electronic product accessories technology, and in particular to a film application box. Background Technology

[0002] Currently, screen protection for commonly used electronic devices such as mobile phones, tablets, and educational devices mainly relies on screen protectors. However, screen protectors sold on the market are usually individually packaged. In actual use, users often need to purchase additional screen protectors or use special application tools to apply them more accurately, which is quite inconvenient. Utility Model Content

[0003] The main purpose of this utility model is to propose a film application box, which aims to improve the convenience of applying film.

[0004] To achieve the above objectives, the present invention provides a film applicator box comprising:

[0005] The box body has a recessed groove, the bottom of which is recessed to form a receiving groove for placing electronic devices;

[0006] The protective film assembly is placed in the settling tank;

[0007] A lid, which is rotatably connected to the box body.

[0008] In one embodiment, the sink includes a first sink section and two second sink sections along the length of the box body. The two second sink sections are respectively disposed at opposite ends of the first sink section, and the bottom of the second sink section is provided with a positioning protrusion.

[0009] The protective film assembly includes a positioning film layer, a protective film layer, and a release film layer stacked sequentially. The positioning film layer includes a body portion and positioning portions disposed at both ends of the body portion. The body portion, the protective film layer, and the release film layer are disposed in the first groove segment. The two positioning portions are disposed in at least part of the two second groove segments and are connected to the positioning protrusions.

[0010] In one embodiment, the width of the second groove segment in the width direction of the box body is greater than the width of the first groove segment in the width direction of the box body.

[0011] In one embodiment, the depth of the sink is greater than the thickness of the protective film assembly.

[0012] In one embodiment, one of the second groove segments is recessed to form a clearance groove, which communicates with the receiving groove.

[0013] In one embodiment, the box body includes a bottom box and an inner frame, the inner frame is installed on the bottom box, the bottom box includes a bottom plate and a side plate connected to the bottom plate, the side plate extends along the length direction of the bottom plate, the cover is rotatably connected to the side plate, and the bottom box is a cardboard box and is integrally formed.

[0014] In one embodiment, the inner frame is bonded to the base plate.

[0015] In one embodiment, the cover and the bottom box are integrally formed.

[0016] In one embodiment, the inner frame and the side panel form a clearance gap, and one side of the side panel that connects to the cover protrudes from the inner frame.

[0017] In one embodiment, the inner frame has a pull-out opening at one end in its length direction that communicates with the sink. The protective film assembly also includes a pull strip connecting the release film layer. The pull strip is located on the side of the release film layer away from the protective film layer and extends along the length direction of the release film layer. The pull-out opening is used for the pull strip to extend out.

[0018] In one embodiment, the receiving groove is formed in the inner frame, the bottom of the receiving groove is provided with a clearance opening, and the bottom of the receiving groove is also provided with a plurality of support ribs, the support ribs are spaced apart along the edge of the clearance opening and connected to the side wall of the receiving groove, the support ribs are used to support the electronic device.

[0019] In one embodiment, the cover is plate-shaped, and a pressure-retaining strip is provided on one side of the cover. When the cover closes the box, the pressure-retaining strip is accommodated inside the box.

[0020] In one embodiment, the positioning protrusions are provided in multiple ways, and at least one of the positioning protrusions is configured as a foolproof protrusion, the cross-sectional dimensions and / or shape of the foolproof protrusion being different from the other positioning protrusions.

[0021] The technical solution of this utility model forms a recessed groove and a receiving groove with a two-level concave structure inside the film box. The receiving groove fixes the electronic device, and the recessed groove accommodates the protective film assembly, achieving automatic alignment between the electronic device and the protective film assembly. Users only need to place the electronic device into the receiving groove and complete the film application directly using the packaging box of the protective film assembly, without the need to purchase special film application tools, thereby improving the convenience of film application and greatly enhancing the user experience. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of an embodiment of the film box and electronic device provided by this utility model;

[0024] Figure 2 for Figure 1 Exploded view;

[0025] Figure 3 for Figure 2 A schematic diagram of the structure of one embodiment of the middle box body, the cover body, and the pressure retaining strip;

[0026] Figure 4 for Figure 3 Exploded view of the middle box, the cover, and the pressure-holding strip;

[0027] Figure 5 for Figure 3 Side view of the inner box, the lid, and the pressure-holding strip;

[0028] Figure 6 for Figure 5 A magnified view of a section at point A in the middle;

[0029] Figure 7 for Figure 3 A schematic diagram of the structure of one embodiment of the inner frame;

[0030] Figure 8 for Figure 7 Top view of the inner frame;

[0031] Figure 9 for Figure 8 A cross-sectional view along the inner frame line MM.

[0032] Explanation of icon numbers:

[0033] 10. Film box; 20. Electronic equipment; 100. Box body; 200. Cover; 300. Pressure strip; 400. Protective film assembly; 110. Base box; 111. Base plate; 112. Side plate; 120. Inner frame; 121. Pull-out opening; 130. Recessed groove; 131. First groove section; 132. Second groove section; 1321. Positioning protrusion; 140. Receiving groove; 141. Clearance opening; 142. Support rib; 150. Clearance groove; 160. Clearance gap; 410. Positioning film layer; 411. Body part; 412. Positioning part; 420. Protective film layer; 430. Release film layer; 440. Pull-out strip.

[0034] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0035] 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, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0036] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0037] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0038] This utility model proposes a film-applying box 10.

[0039] Please see Figure 1 , Figure 7 and Figure 9 In one embodiment of the present invention, the film box 10 includes a box body 100, a protective film assembly 400 and a cover 200. The box body 100 has a recessed groove 130, and the bottom of the recessed groove 130 is recessed to form a receiving groove 140 for placing the electronic device 20. The protective film assembly 400 is placed in the recessed groove 130. The cover 200 is rotatably connected to the box body 100.

[0040] The screen protector box 10 proposed in this utility model is used for auxiliary screen protector application to the screen of electronic device 20. Please refer to [link / reference]. Figure 1 and Figure 2 The screen protector box 10 contains a protective film assembly 400 for applying a screen protector. The protective film assembly 400 includes a positioning film layer 410, a protective film layer 420, and a release film layer 430, which are stacked sequentially. The electronic device 20 is placed in the receiving slot 140, and the protective film assembly 400 is placed on the upper surface of the screen of the electronic device 20. The positioning film layer 410, the protective film layer 420, and the release film layer 430 are arranged sequentially from top to bottom. When the cover 200 is closed, it is located on the upper surface of the protective film assembly 400. During the application process, the positioning film layer 410 is positioned and connected to the box 100. By peeling the release film layer 430 from the surface of the protective film layer 420, the middle protective film layer 420 is positioned facing the screen of the electronic device 20. During the peeling off of the release film layer 430, the cover 200 is pressed to apply pressure to the protective film assembly 400. After the protective film layer 420 is applied to the screen of the electronic device 20, the application is complete. Then, the positioning film layer 410 is separated from the protective film layer 420, allowing the protective film layer 420 to stably cover the surface of the screen of the electronic device 20, thus protecting the screen. The electronic device 20 in this invention can be a tablet computer, mobile phone, e-reader, etc.

[0041] Specifically, the housing 100 has a recessed groove 130, the bottom of which is recessed to form a receiving groove 140. The receiving groove 140 is used to accommodate and fix the electronic device 20, reducing the risk of film application failure due to movement of the electronic device 20 during operation and ensuring the stability and positional accuracy of the electronic device 20 during film application. The recessed groove 130 is used to place the protective film assembly 400, keeping it parallel and aligned with the electronic device 20. The two-stage recessed structure formed by the recessed groove 130 and the receiving groove 140 achieves precise positioning of the electronic device 20 and the protective film assembly 400, avoiding the errors of manual alignment in traditional film application. The protective film assembly 400 is placed in the recessed groove 130, integrating the protective film assembly 400 with the film application tool into a single package, eliminating the need for users to purchase or carry the film application tool separately. The lid 200 is rotatably connected to the box 100, and the lid 200 can be opened and closed relative to the box 100. This allows users to open the box to apply the film when needed, and protects the internal components from dust contamination when closed. The rotatable connection between the lid 200 and the box 100 also facilitates one-handed operation.

[0042] The screen protector box 10 integrates the protective film assembly 400 and a specially designed receiving slot 140 for placing the electronic device 20, eliminating the need for users to find or purchase additional screen protector application tools, simplifying the application process and improving operational efficiency. The screen protector box 10, utilizing the recessed groove 130 and receiving slot 140 in the box body 100, ensures that the electronic device 20 remains in a fixed position during the application process, greatly improving application accuracy. During transportation and storage, the protective film assembly 400 can be directly placed in the screen protector box 10. This integrated packaging not only saves space and packaging costs and avoids the risk of loss, but also provides users with a one-stop screen protector application experience. The application can be completed directly using the packaging of the protective film assembly 400, eliminating the need to purchase additional application tools, greatly enhancing the user experience.

[0043] The technical solution of this utility model involves forming a recessed groove 130 and a receiving groove 140 with a two-level recessed structure within the box body 100 of the film application box 10. The receiving groove 140 secures the electronic device 20, while the recessed groove 130 accommodates the protective film assembly 400, achieving automatic alignment between the electronic device 20 and the protective film assembly 400. Users simply place the electronic device 20 into the receiving groove 140 and complete the film application directly using the packaging box of the protective film assembly 400, eliminating the need to purchase special film application tools. This significantly improves the convenience of film application and greatly enhances the user experience.

[0044] In one implementation, please refer to Figure 1 and Figure 8 The sink 130 includes a first sink segment 131 and two second sink segments 132 along the length of the box body 100. The two second sink segments 132 are respectively disposed at opposite ends of the first sink segment 131. The bottom of the second sink segment 132 is provided with a positioning protrusion 1321. The protective film assembly 400 includes a positioning film layer 410, a protective film layer 420 and a release film layer 430 stacked in sequence. The positioning film layer 410 includes a body part 411 and positioning parts 412 disposed at both ends of the body part 411. The body part 411, the protective film layer 420 and the release film layer 430 are disposed in the first sink segment 131. The two positioning parts 412 are at least partially disposed in the two second sink segments 132 and connected to the positioning protrusion 1321.

[0045] The recess 130 adopts a segmented design along the length of the housing 100. The first segment 131 serves as the main support area, used to place the body 411 of the protective film assembly 400, the protective film layer 420, and the release film layer 430. The length of the first segment 131 matches the screen size of the electronic device 20, ensuring accurate coverage of the protective film layer 420. At this time, the positioning part 412 is almost entirely placed within the corresponding second segment 132. Of course, the length of the first segment 131 can also be slightly larger than the screen size of the electronic device 20. In this case, the positioning part 412 is partially placed within the corresponding second segment 132 and partially within the first segment 131. The second segment 132 is located at both ends of the first segment 131, undertaking the functions of positioning and fixing. The dimensions of the two second segments 132 can be the same or different depending on the dimensions of the two corresponding positioning parts 412. The positioning protrusion 1321 connects with the positioning part 412 of the protective film assembly 400 to prevent displacement of the protective film assembly 400 during the film application process. The positioning protrusion 1321 can be a conical boss or an elastic buckle, etc. The main body 411 and the positioning part 412 of the positioning film layer 410 are integrally formed. The positioning part 412 extends to the second groove section 132 and is provided with holes or grooves that match the positioning protrusion 1321, so as to realize the positioning connection between the positioning part 412 and the positioning protrusion 1321.

[0046] In one implementation, please refer to Figure 8 The width of the second groove segment 132 in the width direction of the box body 100 is greater than the width of the first groove segment 131 in the width direction of the box body 100.

[0047] The width of the first groove segment 131 in the width direction of the housing 100 is L1, and the width of the second groove segment 132 in the width direction of the housing 100 is L2, where L2 > L1. The expanded width of the second groove segment 132 provides more installation space for the positioning protrusion 1321. For example, the positioning protrusion 1321 can be designed as a symmetrical protrusion on both sides, forming a stable engagement with the positioning part 412 of the protective film assembly 400 to prevent lateral displacement. Compared to traditional designs, if the first groove segment 131 and the second groove segment 132 are of equal width, the positioning protrusion 1321 needs to be reduced in size or its distribution spacing to fit the space, resulting in a decrease in engagement strength. Moreover, with the expanded width of the second groove segment 132, the spacing of the positioning protrusions 1321 increases, the force-bearing area of ​​the positioning film layer 410 increases, the force is more uniform, the connection between the positioning film layer 410 and the positioning protrusion 1321 is more stable and reliable, and the positioning film layer 410 is less prone to tearing.

[0048] In other embodiments, the first slot segment 131 and the second slot segment 132 may also be designed with equal width.

[0049] In one embodiment, the depth of the sink 130 is greater than the thickness of the protective film assembly 400.

[0050] The depth of the recess 130 is greater than the thickness of the protective film assembly 400. The extra space in the recess 130 can effectively avoid applying unnecessary pressure to the protective film assembly 400 during the film application process, thereby reducing the risk of damage to the protective film assembly 400. The recess 130 is compatible with protective film assemblies 400 of different thicknesses, eliminating the need to redesign the entire film application box 10, increasing the versatility of the box body 100, and reducing the design cost of the box body 100.

[0051] In other embodiments, the depth of the sink 130 may also be the same as the thickness of the membrane assembly 400.

[0052] In one implementation, please refer to Figure 7 and Figure 8 One of the second groove segments 132 has a recessed relief groove 150, which is connected to the receiving groove 140.

[0053] The shape of the clearance groove 150 is not limited, but its size is sufficient to accommodate one adult finger, serving to avoid obstructing fingers. The clearance groove 150 facilitates the placement and removal of the electronic device 20 from the receiving slot 140. The electronic device 20 can be placed or removed simply by gripping it with a finger in the clearance groove 150, making it convenient and quick.

[0054] In one implementation, please refer to Figure 3 and Figure 4 The box body 100 includes a bottom box 110 and an inner frame 120. The inner frame 120 is installed on the bottom box 110. The bottom box 110 includes a bottom plate 111 and a side plate 112 connected to the bottom plate 111. The side plate 112 extends along the length of the bottom plate 111. The cover 200 is rotatably connected to the side plate 112. The bottom box 110 is a cardboard box and is integrally formed.

[0055] The housing 100 includes a base box 110 and an inner frame 120. The base box 110 provides overall protection, while the inner frame 120 is used to secure the electronic device 20. The inner frame 120 can be designed with a specific shape or size to accommodate different types of electronic devices 20. The receiving slot 140 can be formed in the inner frame 120, or it can be formed together by the base plate 111 of the housing 100 and the inner frame 120.

[0056] The base box 110 includes a base plate 111 and side plates 112. The base box 110 is foldable, allowing the shape of the box 100 to be adjusted according to actual needs, such as unfolding or folding, thus facilitating transportation and storage. The base box 110 is made of cardboard and is a single piece, meaning it is made from a single piece of cardboard through folding, allowing the box 100 to be compressed to a smaller volume when not in use, saving space. At the same time, cardboard is lightweight and environmentally friendly, reducing production costs.

[0057] In other embodiments, the bottom box 110 may also be made of plastic, the connection between the side plate 112 and the cover 200 may be thinner, and the cover 200 may be folded relative to the side plate 112; or the side plate 112 and the cover 200 may be made of hard plastic or metal, and the side plate 112 and the cover 200 may be rotatably connected by silicone, fabric, connecting rings, etc.

[0058] In one embodiment, the inner frame 120 is configured as a single injection molded unit. Complex features of the inner frame 120, such as the receiving groove 140, the recess 130, and the positioning protrusion 1321 for positioning and connecting with the positioning film layer 410, can be rapidly formed through injection molding. Single injection molding of the inner frame 120 ensures a high degree of consistency in the quality of each finished product, reduces errors caused by manual operation, and ensures that each inner frame 120 meets design specifications. Of course, in other embodiments, the inner frame 120 can also be formed by stamping.

[0059] In one embodiment, the inner frame 120 is bonded to the base plate 111.

[0060] The bonding of the inner frame 120 to the base plate 111 enhances the structural stability of the entire film application box 10, ensuring that the accuracy of film application is not affected by the movement of the inner frame 120 during use. This reduces the need for manual adjustments by the user and improves the success rate and quality of film application. Using adhesive bonding to fix the inner frame 120 to the base plate 111 reduces assembly steps and complexity during manufacturing, helping to improve production efficiency and reduce production costs.

[0061] In other embodiments, the inner frame 120 and the base plate 111 can also be connected by snap-fit ​​or screw locking.

[0062] In one implementation, please refer to Figure 4 The cover 200 and the bottom box 110 are integrally formed.

[0063] The lid 200 and the base box 110 are folded from paper material into one piece. Paper material is lightweight, environmentally friendly, and low-cost. The lid 200 and base box 110 are integrated through a folding process, reducing the complex processes of cutting, splicing, and gluing required in traditional manufacturing, further reducing production costs. The paper material itself has a natural texture, and after printing or surface treatment, it can present a simple and stylish appearance. It can be customized according to customer needs, such as brand logos, patterns, or text printing.

[0064] In other embodiments, the cover 200 and the bottom box 110 can also be integrally formed by injection molding, or they can be separately molded and then connected as one unit.

[0065] In one implementation, please refer to Figure 5 and Figure 6 The inner frame 120 and the side plate 112 form a clearance gap 160, and one side of the side plate 112 that connects to the cover 200 protrudes from the inner frame 120.

[0066] The cover 200 is rotatably connected to the side panel 112. The clearance 160 formed between the inner frame 120 and the side panel 112, along with the protruding design of the side panel 112, allows the cover 200 to avoid interference with the inner frame 120 near its axis of rotation during rotation. Simultaneously, the clearance 160 provides the side panel 112 with some deformation space, making the rotation of the cover 200 and side panel 112 smoother and the opening and closing of the cover 200 more convenient. The protruding design of the side panel 112 allows the cover 200 to better cover the inner frame 120, improving the film application effect.

[0067] In other embodiments, the inner frame 120 and the side panel 112 may be closely fitted together; the side edge of the side panel 112 that connects to the cover 200 may also be flush with the inner frame 120.

[0068] In one implementation, please refer to Figure 6 and Figure 7 The inner frame 120 has a pull-out opening 121 at one end of its length direction that communicates with the recess 130. The protective film assembly 400 also includes a pull strip 440 that connects to the release film layer 430. The pull strip 440 is located on the side of the release film layer 430 away from the protective film layer 420 and extends along the length direction of the release film layer 430. The pull-out opening 121 is used for the pull strip 440 to extend out.

[0069] The pull-out opening 121 can be formed by the inner frame 120 being recessed at one end along its length toward the bottom plate 111, and the recessed opening being formed with the cover 200 in the closed state. When the cover 200 is in the closed state, the pull-out opening 121 is a slit that allows part of the pull strip 440 to extend out, and allows the release film 430 to be pulled out when the release film 430 is removed. As a result, the width of the pull-out opening 121 is small, making it difficult for dust, impurities, etc. to enter the interior of the film box 10 from the pull-out opening 121. At the same time, it can prevent a large pull-out opening 121 from damaging the appearance of the film box 10.

[0070] The pull-out opening 121 can also be formed by an opening on one end face of the inner frame 120 in the length direction, with a gap between the edge of the pull-out opening 121 and the edge of the end face. Alternatively, the opening of the receiving groove 140 can penetrate the end face of one end of the inner frame 120 in the length direction to form the pull-out opening 121.

[0071] In one implementation, please refer to Figures 7 to 9The receiving groove 140 is formed in the inner frame 120. The bottom of the receiving groove 140 is provided with a relief opening 141. The bottom of the receiving groove 140 is also provided with a plurality of support ribs 142. The support ribs 142 are spaced along the edge of the relief opening 141 and connected to the side wall of the receiving groove 140. The support ribs 142 are used to support the electronic device 20.

[0072] The receiving groove 140 has a clearance opening 141 at its bottom. This clearance opening 141 is designed to avoid interference between the bottom of the electronic device 20 (such as a mobile phone camera) and the base plate 111, ensuring the device can be smoothly placed in and removed. The clearance opening 141 also reduces weight, contributing to the lightweight design of the screen protector box 10. The bottom of the receiving groove 140 also has multiple support ribs 142. These ribs provide additional support and restraint for the electronic device 20, ensuring it does not shift or slide during screen protector application, thus contributing to its stability. The support ribs 142 increase the distance between the bottom surface of the electronic device 20 and the base plate 111, better avoiding protruding parts of the electronic device 20's bottom surface.

[0073] In one implementation, please refer to Figure 3 The cover 200 is plate-shaped, and a pressure-retaining strip 300 is provided on one side of the cover 200. When the cover 200 closes the box 100, the pressure-retaining strip 300 is accommodated inside the box 100.

[0074] During the process of peeling off the release film layer 430, the cover 200 is pressed by hand to apply a certain pressure, keeping the cover 200 in a closed state. This allows the cover 200 to apply appropriate pressure to the protective film assembly 400 via the pressure-holding strip 300, achieving an automatic pressure-holding function for the protective film assembly 400. This eliminates the need for a roller-type pressure-holding structure, simplifying the structure of the film application box 10 and the film application steps, ensuring ease and efficiency in the film application operation, and thus improving the convenience of the film application operation. The pressure-holding design of the pressure-holding strip 300 also helps to eliminate air bubbles and ensure flatness during the film application process, while also ensuring a tight fit between the protective film layer 420 and the screen of the electronic device 20, thereby improving the quality of the film application.

[0075] Understandably, during the process of peeling off the release film layer 430, the hand presses on the cover 200, and the pressure strip 300 on the cover 200 and the protective film assembly 400 will form a corresponding pressure, so that the protective film assembly 400 and the screen of the electronic device 20 will make contact in advance under the pressure contact of the pressure strip 300 to achieve the effect of automatic air release. Specifically, the pressure strip 300 has a certain elasticity. Initially, under the action of the cover 200, the pressure strip 300 ensures the protective film assembly 400 is fully pressed against the screen of the electronic device 20. When the release film layer 430 separates from the protective film layer 420, the release film layer 430 needs to be pulled out from the pull-out port 121. The release film layer 430 flips from the end opposite to the pull-out port 121 and begins to separate from the protective film layer 420, thus compressing the pressure strip 300. After the release film layer 430 is pulled out, the pressure strip 300 rebounds and pushes the positioning film layer 410 and the protective film layer 420, causing the protective film layer 420 to automatically adhere to the screen of the electronic device 20. The pressure strip 300 is a sponge strip, which provides relatively soft elasticity and has a large compression thickness, resulting in better film application during the rebound process. The pressure strip 300 can also be made of foam, silicone, rubber, or elastic plastic.

[0076] In other embodiments, the pressure-holding strip 300 may also be a combination of a spring and a push plate, etc.

[0077] In one implementation, please refer to Figure 7 and Figure 8 The positioning protrusions 1321 are provided in multiple ways, and at least one positioning protrusion 1321 is configured as a foolproof protrusion. The cross-sectional dimensions and / or shape of the foolproof protrusion are different from those of the other positioning protrusions 1321.

[0078] The positioning part 412 of the positioning film layer 410 is provided with positioning holes corresponding to the positioning protrusions 1321. The position, number, cross-sectional size, and shape of the positioning holes correspond one-to-one with the positioning protrusions 1321. By configuring at least one positioning protrusion 1321 as a foolproof protrusion, the user can be prevented from incorrectly installing the protective film assembly 400 in the reverse order. Furthermore, the structure of the positioning protrusion 1321 is simple and easy to process. The foolproof protrusion is cylindrical or elongated. The shape of the positioning protrusion 1321 can be circular, square, prismatic, or other shapes, without specific limitations. The use of obvious cylindrical or elongated protrusions is to allow the user to clearly distinguish the front and rear order of the protective film assembly 400 and quickly and accurately position the protective film assembly 400.

[0079] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural transformations made based on the technical concept of the present utility model and the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A sticker box, characterized by comprising: The application relates to a box body, a protection film assembly and a cover body. The box body has a sink groove, the groove bottom of the sink groove is recessed to form a containing groove for placing an electronic device; The protection film assembly is placed in the sink groove; The cover body is rotationally connected with the box body.

2. The film attaching case according to claim 1, wherein The sink groove comprises a first groove section and two second groove sections in the length direction of the box body, the two second groove sections are arranged at opposite ends of the first groove section, and the groove bottom of the second groove section is provided with a positioning protrusion; The protection film assembly comprises a positioning film layer, a protection film layer and a release film layer which are sequentially arranged in layers, the positioning film layer comprises a body part and positioning parts arranged at two ends of the body part, the body part, the protection film layer and the release film layer are arranged in the first groove section, two positioning parts are arranged in the two second groove sections in a one-to-one correspondence and at least partially, and are connected with the positioning protrusion.

3. The film attaching case according to claim 2, wherein The width of the second groove section in the width direction of the box body is greater than the width of the first groove section in the width direction of the box body; And / or, the depth of the sink groove is greater than the thickness of the protection film assembly; And / or, one of the second groove sections is recessed to form an avoiding groove which is communicated with the containing groove.

4. The film attaching case according to claim 2, wherein The box body comprises a bottom box and an inner frame, the inner frame is mounted on the bottom box, the bottom box comprises a bottom plate and a side plate connected with the bottom plate, the side plate extends along the length direction of the bottom plate, the cover body is rotationally connected with the side plate, and the bottom box is a paper box and is integrally arranged.

5. The film attaching case according to claim 4, wherein The inner frame is bonded with the bottom plate; And / or, the cover body is integrally formed with the bottom box.

6. The film attaching case according to claim 4, wherein The inner frame and the side plate form an avoiding gap, and one side edge of the side plate connected with the cover body protrudes from the inner frame.

7. The film attaching case according to claim 4, wherein One end of the inner frame in the length direction thereof is formed with a pulling opening communicated with the sink groove, the protection film assembly further comprises a pulling strip connected with the release film layer, the pulling strip is arranged on the side of the release film layer away from the protection film layer and extends along the length direction of the release film layer, and the pulling opening is used for extending the pulling strip.

8. The film attaching case according to claim 4, wherein The containing groove is formed in the inner frame, the groove bottom of the containing groove is provided with an avoiding opening, and a plurality of supporting ribs are arranged on the groove bottom of the containing groove and connected with the groove side wall of the containing groove, the supporting ribs are arranged at intervals along the edge of the avoiding opening, and the supporting ribs are used for supporting the electronic device.

9. The film attachment case according to claim 1, wherein The cover body is plate-shaped, one side surface of the cover body is provided with a pressure maintaining strip, and the pressure maintaining strip is contained in the box body when the cover body covers the box body.

10. The film attachment case according to claim 2, wherein The positioning protrusions are provided in plurality, at least one of the positioning protrusions is configured as a foolproof protrusion, and the cross-sectional size and / or shape of the foolproof protrusion is different from those of other positioning protrusions.