A dust-free film pasting box and a set

Abstract

The utility model discloses a kind of dustless film pasting bin and set of heaven and earth, the film pasting bin includes upper cover and base, the upper cover can be opened or closed the base relative to the base rotates;The base includes the positioning bin in middle, the film step around the positioning bin periphery is set, the positioning bin is used to place the film product to be pasted;The film step is provided with the protruding positioning column, the positioning column is used to be engaged with film assembly when pasting film;The base is provided with movable engagement structure on the side of the positioning bin, the movable engagement structure can be loose and tight adjustment to be pasted film product clamping.The utility model when pasting film to mobile phone, tablet computer and other products, avoid film pasting bin and electronic product due to size error and lead to too tight or too loose phenomenon and affect film pasting, combined with film assembly can realize dustless film pasting, and positioning is accurate, film pasting operation is simple, fast and convenient.

Description

Technical Field

[0001] This utility model relates to the field of electronic product film application equipment technology, and in particular to a dust-free film application chamber and kit for a top and bottom box. Background Technology

[0002] Screen protector applicators are used to apply screen protectors to electronic products such as mobile phones and tablets. Existing screen protector applicators include snap-on and dust-free types. Regardless of whether it is snap-on or dust-free, current technology relies solely on the fixed posts around the positioning frame to limit and fix the product (mobile phone, tablet, etc.) to be covered. If there is an error in the length and width of the positioning frame between the electronic product and the screen protector applicator, the product may not be able to be snapped in or may be too loose. If the former is snapped in with force, it may either scratch the product or damage the screen protector applicator. If the latter is too loose, it may result in inaccurate application or the screen protector may fall off completely, making it impossible to apply the screen protector.

[0003] Therefore, existing technologies need to be improved. Utility Model Content

[0004] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a dust-free film application container and kit, which aims to avoid the phenomenon of the film application container being too tight or too loose due to size errors between the film application container and the product to be applied, thus affecting the film application.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] In the first aspect, this utility model proposes a dust-free film-applying compartment with a top and bottom box, which includes a top cover and a base. The top cover can rotate relative to the base to open or close the base.

[0007] The base includes a positioning chamber in the middle and a membrane step around the positioning chamber. The positioning chamber is used to place the product to be covered with film.

[0008] The membrane step is provided with a protruding positioning post, which is used to engage with the membrane module during membrane application;

[0009] The base has a movable locking structure on the side of the positioning chamber, and the movable locking structure can be adjusted to clamp the product to be applied with film.

[0010] In some embodiments, the movable engaging structure includes an L-shaped groove disposed on the bottom wall and side wall of the positioning chamber, and a spring piece disposed on the side wall of the positioning chamber and suspended in the L-shaped groove, the spring piece being movable or elastically reset within the L-shaped groove.

[0011] In some embodiments, the spring includes a fixed section and a movable section. The fixed section is connected to the upper end of the side wall of the positioning chamber, one end of the movable section is connected to the fixed section, and the other end of the movable section extends toward the bottom wall of the positioning chamber.

[0012] And / or,

[0013] The active segment is in the shape of an inwardly curved arc or fold.

[0014] In some embodiments, the base is provided with a baffle wall that extends above the membrane step on the outside of the membrane step.

[0015] In some embodiments, the base is further provided with a retrieval slot on the side wall of the positioning chamber.

[0016] In some embodiments, the positioning compartment of the base is provided with a camera avoidance hole on the bottom wall.

[0017] In some embodiments, a film pressing chamber is provided on the side of the top cover facing the base, and a retaining edge is provided around the periphery of the film pressing chamber. The retaining edge can be fitted onto the outer wall of the membrane step. A cotton strip pressing groove is provided inside the film pressing chamber, and the cotton strip pressing groove is used to install a sponge pressing strip for film pressing.

[0018] In some embodiments, the top cover is further provided with a longitudinal hand-carved groove that runs through the film-pressing chamber.

[0019] In some embodiments, the upper cover is further provided with protrusions on its edge, and the outer wall of the membrane step is provided with recesses that engage with the protrusions.

[0020] Secondly, this utility model also proposes a dust-free film application container set with a top and bottom box, which includes the aforementioned dust-free film application container with a top and bottom box, as well as a film assembly and a sponge pressure strip. The film assembly includes an upper protective sheet, tempered glass, an adhesive layer, and a tension layer that are sequentially bonded together. The edge of the upper protective sheet is provided with a positioning hole that engages with the positioning post.

[0021] It should be understood that, within the scope of this utility model, the above-mentioned technical features of this utility model and the technical features specifically described below (such as embodiments) can be combined with each other to form new or preferred technical solutions. Due to space limitations, they will not be described in detail here.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. This utility model is designed with an openable or closable top cover and base. The positioning compartment of the base is equipped with a movable locking structure. When the product to be filmed is placed into the positioning compartment of the base, even if the size of the product to be filmed and the positioning compartment cannot be precisely matched, the product to be filmed can be properly clamped due to the adjustment of the movable locking structure. There will be no phenomenon of not being able to fasten or loosening, thus preventing scratches on the product and inaccurate film application.

[0024] 2. The top cover and base of this utility model adopt a rotatable top and bottom box design. When applying a screen protector to electronic products, the product is placed in the positioning compartment of the base, the film assembly is placed on top, and then the top cover is closed to shut the base, reducing the amount of dust entering the interior. At the same time, combined with the pull-out screen protector application method, the dust on the screen is carried away by the film assembly during the pull-out process, achieving dust-free screen protector application.

[0025] 3. The film application compartment of this utility model can also be used as a packaging box. For example, when the product such as a tablet computer purchased by the user is shipped, it can be placed directly in the base of the film application compartment, and then the film application compartment and the tablet computer can be shipped as a whole, which can save packaging costs. Attached Figure Description

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the first embodiment of the dust-free film-applying compartment of the top and bottom box of this utility model.

[0028] Figure 2 for Figure 1 Diagram showing the structure in its open state.

[0029] Figure 3 for Figure 2 A schematic diagram showing products to be coated in a structural positioning chamber.

[0030] Figure 4 This is a schematic diagram of the base structure.

[0031] Figure 5 for Figure 4 A schematic diagram of the axial cross-section.

[0032] Figure 6 for Figure 5 Enlarged schematic diagram of the movable locking structure.

[0033] Figure 7This is a schematic diagram of the upper cover.

[0034] Figure 8 This is an exploded view of the dust-free film-applying container set of the present invention.

[0035] Figure label:

[0036] 100-Film application compartment, 1-Top cover, 11-Film pressing compartment, 12-Edge clamping, 121-Raised dot, 13-Cotton swab pressing groove, 14-Hand-scratching groove, 15-Pressing window, 2-Base, 21-Positioning compartment, 211-Bottom wall, 212-Side wall, 213-Camera clearance hole, 22-Film step, 221-Concave hole, 23-Positioning post, 24-Modible locking structure, 25-L-shaped groove, 26-Spring piece, 26 1-Fixed section, 262-Moving section, 27-Baffle, 28-Abutment post, 29-Retrieval slot, 3-Rotating part, 31-Sleeve, 32-Rotating shaft, 4-Membrane assembly, 41-Upper protective sheet, 411-Positioning hole, 412-Overlap block, 42-Tempered glass, 43-Adhesive layer, 44-Stretch layer, 45-Lower protective sheet, 46-Stretch strip, 5-Sponge pressure strip, 200-Set, Products to be filmed - 300. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, 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 protection scope of the present utility model.

[0038] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a quick-release connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Furthermore, in this utility model, descriptions involving "first," "second," etc., 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.

[0041] This utility model proposes a dust-free film application container 100 with a top and bottom cover, including an upper cover 1 and a base 2. The upper cover 1 can rotate relative to the base 2 to open or close the base 2. The upper cover 1 and the base 2 can be made of materials such as plastic. In this embodiment, a rotating part 3 is provided between the upper cover 1 and the base 2 to allow them to rotate. Specifically, as shown... Figure 2 As shown, the rotating part 3 includes a bushing 31 disposed on one side of the upper cover 1 and a rotating shaft 32 disposed on one side of the base 2. The rotating shaft 32 is inserted into the bushing 31 and rotates relative to the bushing 31, thereby causing the upper cover 1 to rotate relative to the base 2. Figure 2 As shown, when the top cover 1 is opened relative to the base 2, the product to be applied and the film assembly can be placed inside.

[0042] The base 2 of this utility model includes a positioning chamber 21 located in the center and film steps 22 arranged around the positioning chamber 21. The positioning chamber 21 is used to place the product to be applied with a screen protector. The positioning chamber 21 is a groove structure inside the base 2, used to accommodate the product to be applied with a screen protector and fix its position to facilitate subsequent application of the screen protector. In this embodiment, the positioning chamber 21 of the base 2 is rectangular, which can accommodate rectangular electronic products such as mobile phones, tablets, and game consoles. Figure 3 As shown in the illustration, the positioning chamber 21 in this embodiment contains the product 300 to be coated with film. In other embodiments, the positioning chamber 21 may have other shapes. The film step 22 is used to support the edge of the film assembly, and in this embodiment, the film step 22 is provided with a protruding positioning post 23, which is used to engage with the film assembly during film coating. This allows the film assembly to be positioned and aligned with the product 300 to be coated with film during coating, preventing the film assembly from moving during coating.

[0043] The base 2 has a movable engaging structure 24 on the side of the positioning chamber 21. The movable engaging structure 24 can be adjusted to clamp the product 300 to be coated. The movable engaging structure 24 can be an elastic structure or a linear moving structure. In this embodiment, the size of the positioning chamber 21 is slightly larger than the outer edge of the product 300 to be coated. So when the product 300 to be coated is placed in the positioning chamber 21, it can be firmly clamped by adjusting the tightness of the movable engaging structure 24. Even when using the dust-free coating chamber 100 of this utility model, even if the length and width dimensions of the product 300 to be coated do not match the length and width dimensions of the positioning chamber 21 precisely, the product 300 can still be clamped and fixed by adjusting the tightness of the movable engaging structure 24, without scratching the product or loosening.

[0044] Preferably, the movable locking structure 24 of this embodiment is disposed on at least two adjacent sides of the positioning chamber 21, so that the product to be applied 300 can be properly clamped in the length and width directions within the positioning chamber 21.

[0045] The usage process of the dust-free film application compartment 100 of this utility model is as follows: Open the top cover 1, then place the product 300 to be applied into the positioning compartment 21 of the base 2 and clamp it in place by the movable locking structure 24. Then place the film assembly on the upper surface (screen) of the product 300 to be applied and lock the edge of the film assembly into the positioning post 23. Then rotate the top cover 1 to cover the base 2, so that the top cover 1 presses down on the film assembly. Then pull out the protective sheet on the film assembly so that the tempered glass is applied to the screen of the product 300 to be applied.

[0046] Specifically, such as Figure 5 and Figure 6 As shown, the movable engaging structure 24 of this embodiment includes an L-shaped groove 25 disposed on the bottom wall 211 and side wall 212 of the positioning chamber 21, and a spring piece 26 disposed on the side wall 212 of the positioning chamber 21 and suspended within the L-shaped groove 25. The spring piece 26 is movable or elastically reset within the L-shaped groove 25. The L-shaped groove 25 allows the spring piece 26 to have a relatively large range of motion, such as... Figure 6As shown, when the spring piece 26 moves outward, it can move to the rightmost side of the L-shaped groove 25, and when it moves inward, it can move to the leftmost side of the L-shaped groove 25 or beyond the leftmost side. This allows it to accommodate clamping and fixing more products 300 of different sizes to be applied with film. The length and width dimensions of the positioning chamber 21 are slightly larger than the length and width dimensions of the product 300 to be applied with film. The spring piece 26 is located inside the side wall 212 of the positioning chamber 21. Therefore, the width or length of the spring piece 26 relative to the side wall of the positioning chamber 21 is smaller than the width or length of the product 300 to be applied with film. This ensures that the product 300 to be applied with film is clamped tightly. At the same time, because the spring piece 26 can deform elastically, it will not scratch the product 300 to be applied with film due to hard contact. The movement of the spring piece 26 in the L-shaped groove 25 is due to the elastic displacement generated by the pressure of the product 300 to be applied with film. When this pressure is released, the spring piece 26 will return to its initial position under the action of elastic force.

[0047] In this embodiment, the spring clip 26 includes a fixed section 261 and a movable section 262. The fixed section 261 is connected to the upper end of the side wall 212 of the positioning chamber 21. One end of the movable section 262 is connected to the fixed section 261, and the other end of the movable section 262 extends towards the bottom wall 211 of the positioning chamber 21. That is, the fixed section 261 of the spring clip does not move or the amount of displacement is very small, while the movable section 262 will undergo a large displacement after being subjected to force. The elastic deformation of the movable section 262 generates a rebound force to clamp the product 300 to be applied.

[0048] The movable section 262 of this utility model is an inwardly curved arc or folded shape, which can fully press the product 300 to be covered with film firmly.

[0049] In this embodiment, an abutment post 28 is also provided on the side wall 212 of the positioning chamber 21. The abutment post 28 is immovable on the side wall 212 and makes hard contact with the product 300 to be coated. The abutment post 28 is generally arranged opposite to the movable engaging structure 24, i.e., as shown in the figure. Figure 4 As shown, a movable engaging structure 24 is provided on the front side wall 212 of the positioning chamber 21, and an abutment post 28 is provided on the rear side wall 212 of the positioning chamber 21. Simultaneously, a movable engaging structure 24 is provided on the right side wall 212 of the positioning chamber 21, and an abutment post 28 is provided on the left side wall 212 of the positioning chamber 21. Thus, when the product 300 to be coated is placed into the positioning chamber 21, its length and width are both clamped by the abutment post 28 and the movable engaging structure 24, respectively. The abutment post 28 serves to cooperate with the movable engaging structure 24, facilitating the positioning and fixation of the product 300 to be coated.

[0050] Preferably, such as Figure 4 and Figure 5As shown, in this embodiment, the base 2 has a baffle 27 that extends above the membrane step 22 on the outer side of the membrane step 22. The baffle 27 can block the outer edge of the membrane assembly, limit the membrane assembly, and prevent the membrane assembly from shifting during the film application process, thus affecting the film application effect.

[0051] Preferably, the base 2 is further provided with a retrieval slot 29 on the side wall 212 of the positioning chamber 21. For example... Figure 3 and Figure 4 As shown, the retrieval slot 29 is provided on the side walls 212 on the left and right sides, which facilitates the removal of the product 300 to be coated from the positioning chamber 21.

[0052] Preferably, the positioning chamber 21 of the base 2 has a camera clearance hole 213 on its bottom wall 211. This way, after the product 300 to be coated is placed into the positioning chamber 21, the camera on the back of the product 300 can fall into the camera clearance hole 213, thus avoiding the bottom wall 211 of the base 1 from lifting the product 300 and affecting the coating.

[0053] Furthermore, in this embodiment, the bottom wall 211 of the positioning chamber 21 of the base 1 is provided with a mesh-like perforation. The mesh-like perforation can reduce the weight of the base 1.

[0054] Preferably, such as Figure 7 As shown, the upper cover 1 of this utility model has a film pressing chamber 11 on the side facing the base 2. The film pressing chamber 11 has a retaining edge 12 around its perimeter, which can be fitted onto the outer wall of the film step 22. A cotton strip pressing groove 13 is provided inside the film pressing chamber 11 for installing a sponge pressing strip 5 for film pressing. The film pressing chamber 11 ensures that the upper cover 1 can press against the film assembly during the film application process, preventing the film assembly from flipping upwards. The retaining edge 12 makes the fit between the upper cover 1 and the base 2 tighter. The cotton strip pressing groove 13 allows the sponge pressing strip 5 to be installed at this position during the film application process. The sponge pressing strip 5 compresses the film assembly during the application process, making the film assembly adhere more tightly to the screen of the product 300 to be filmed, thus facilitating the film application operation. Specifically, after the sponge strip 5 is installed into the cotton strip groove 13 of the upper cover 1, the product 300 to be applied and the film assembly are placed in the positioning chamber 21, and the upper cover 1 is closed. The inner surface of the upper cover 1 presses against the film assembly. At this time, the sponge strip 5 is also pressed onto the film assembly and is in a compressed state. Due to its high elasticity, it does not affect the pulling of the film assembly. After pulling out the pull strip of the film assembly, the sponge strip 5 rebounds, squeezing the film assembly so that the adhesive layer on it contacts the screen, thereby achieving the effect of automatic bonding. In this embodiment, the cotton strip groove 13 is arranged horizontally in the film pressing chamber 11 and is located on the side near the positioning post 23 on the base 2.

[0055] Preferably, such as Figure 7As shown, the upper cover also has a longitudinally extending hand groove 14 that penetrates the film pressing chamber 11. The hand groove 14 is a through groove that extends through the upper cover 1, allowing the operator's fingers to reach into the hand groove 14 from above and slide longitudinally along the direction of the groove on the film assembly during film application. This facilitates faster removal of air bubbles between the film assembly and the screen of the product to be covered. Furthermore, the upper cover 1 has multiple pressing windows 15 on both sides of the hand groove, allowing fingers to press the film assembly through the pressing windows 15. This further accelerates air venting.

[0056] Preferably, combined with Figure 4 and Figure 7 In this embodiment, the upper cover 1 has a protrusion 121 on its edge 12, and the outer wall of the membrane step 22 has a recess 221 that engages with the protrusion 121. Thus, when the upper cover 1 and the base 2 are closed, the protrusion 121 of the upper cover 1 can be engaged into the recess 221 of the base 2, so that the two can be firmly closed together and are not easy to come apart.

[0057] like Figure 8 As shown, this utility model also proposes a dust-free film application container set 200, including the aforementioned dust-free film application container 100, and further including a film assembly 4 and a sponge pressure strip 5. The film assembly 4 includes an upper protective sheet 41, tempered glass 42, an adhesive layer 43, and a tension layer 44 sequentially bonded together. The edge of the upper protective sheet 41 is provided with a positioning hole 411 that engages with the positioning post 23. In this embodiment, the positioning post 23 on the base 2 is located on the side near the rotating part 3, and correspondingly, the positioning hole 411 of the upper protective sheet 41 is also located on the side near the rotating part 3.

[0058] In this embodiment, the upper protective sheet 41, tempered glass 42, adhesive layer 43, and tension layer 44 are integrally formed as a whole. The upper protective sheet 41 is a PET film with positioning holes 411 for positioning the entire film assembly 4. The adhesive layer 43 is used to adhere the tempered glass 42 to the screen of the product 300 to be filmed. The tension layer 44 is used to pull and separate from the adhesive layer 43 during film application. In this embodiment, the outer edge of the upper protective sheet 41 is provided with overlapping blocks 412. Specifically, the overlapping blocks 412 are located on the sides of the upper protective sheet 41 adjacent to and opposite to the positioning holes 411. The overlapping blocks 412 are all positioned beyond the outer edge dimensions of the tempered glass 42, adhesive layer 43, and tension layer 4. This ensures that when the film assembly 4 is placed into the base 2, the tempered glass 42, adhesive layer 43, and tension layer 44 can all be accommodated within the positioning chamber 21 of the base 2. The overlapping blocks 412 of the upper protective sheet 41 overlap on the film step 22 of the base 2, supporting the front, back, and right sides of the film assembly 4. This prevents air bubbles from escaping from one side (left side) of the positioning hole 411 to the right side during the film application process, thus avoiding premature contact between the right side and front and back sides of the film assembly and the screen, which could lead to air trapping.

[0059] like Figure 8 As shown, the tension layer 44 includes a lower protective sheet 45 on the upper layer and a pull strip 46 on the lower layer. The lower protective sheet 45 is bonded to the adhesive layer 43 and is used to protect the tempered glass 42 when the membrane assembly 4 is not in use. The lower protective sheet 45 and the pull strip 46 can be an integral structure or bonded together. One end of the lower protective sheet 45 is connected to one end of the pull strip 46, and the other end of the pull strip 46 can protrude from the side of the base 2 away from the rotating part 3. During use, the pull strip 46 can separate the lower protective sheet 45 from the adhesive layer 43.

[0060] The specific application process of this utility model's dust-free film application container set 200 is as follows: First, open the top cover 1, install the sponge strip 5 inside the top cover 1, then place the product to be filmed 300 into the positioning compartment 21 of the base 2, then place the film assembly 4 on top of the product to be filmed 300, and engage the positioning hole 411 on the film assembly 4 with the positioning post 23 on the base 2. Simultaneously, as... Figure 8 As shown, the right end of the pull strip 46 of the film assembly 4 protrudes from the right end of the base 2. Then, the upper cover 1 is closed, and the right end of the pull strip 46 is pulled out from the right end of the base 2 to separate the lower protective sheet 45 from the adhesive layer 43, so that the lower surface of the adhesive layer 43 is bonded to the upper surface of the screen of the product 300 to be covered with film, so that the tempered glass 202 is fixed on the screen. Then, the upper cover 1 is opened, and the upper protective sheet 41 of the film assembly 4 is peeled off to complete the film application.

[0061] This utility model's dust-free screen protector application compartment 100 allows users to open the top cover 1 and place the product 300 (tablet, mobile phone, game console, etc.) to be screen protected into the positioning compartment 21 of the base 2. The screen protector assembly 4 is then removed and fixed to the positioning post 23 on the side of the positioning compartment 21. The pull strip 46 at the bottom of the film assembly 4 first contacts the screen of the product 300. The user simply pulls the pull strip 46 to bend the lower protective sheet 45, forming a raised portion. The raised portion's electrostatic adsorption removes dust from the screen. The tempered glass 42 automatically adheres to the screen through the squeezing action of the sponge strip 5 of the pressure compartment 11 on the top cover 1. The user slides their finger through the hand-sliding groove 14, allowing for faster air release and automatic completion of the screen protector application. This dust-free screen protector application compartment 100 not only functions as a screen protector applicator but also as a packaging box, eliminating the need for a separate screen protector applicator and providing storage for electronic products, thus achieving multiple uses.

[0062] The above description is merely an example to clearly illustrate the present utility model and is not intended to limit the patent scope of the present utility model. It is impossible to exhaustively list all the embodiments here. All equivalent structural transformations made using the content of the technical solution of the present utility model under the concept of the present utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A dust-free film-applying compartment with a top and bottom box, characterized in that, Includes a top cover and a base, wherein the top cover can rotate relative to the base to open or close the base; The base includes a positioning chamber in the middle and a membrane step around the positioning chamber. The positioning chamber is used to place the product to be covered with film. The membrane step is provided with a protruding positioning post, which is used to engage with the membrane module during membrane application; The base has a movable locking structure on the side of the positioning chamber, and the movable locking structure can be adjusted to clamp the product to be applied with film.

2. The dust-free film-applying compartment of the top and bottom box according to claim 1, characterized in that, The movable engaging structure includes an L-shaped groove disposed on the bottom wall and side wall of the positioning chamber, and a spring piece disposed on the side wall of the positioning chamber and suspended in the L-shaped groove. The spring piece can move or elastically reset within the L-shaped groove.

3. The dust-free film-applying compartment of the top and bottom box according to claim 2, characterized in that, The spring includes a fixed section and a movable section. The fixed section is connected to the upper end of the side wall of the positioning chamber, one end of the movable section is connected to the fixed section, and the other end of the movable section extends toward the bottom wall of the positioning chamber. And / or, The active segment is in the shape of an inwardly curved arc or fold.

4. The dust-free film-applying compartment of the top and bottom box according to claim 1, characterized in that, The base has a baffle wall that extends above the membrane step on the outside of the membrane step.

5. The dust-free film-applying compartment of the top and bottom box according to claim 1, characterized in that, The base is also provided with a retrieval slot on the side wall of the positioning compartment.

6. The dust-free film-applying compartment of the top and bottom box according to claim 1, characterized in that, The positioning compartment of the base has a camera avoidance hole on its bottom wall.

7. The dust-free film-applying compartment of the top and bottom box according to claim 1, characterized in that, The upper cover has a film pressing chamber on the side facing the base. The film pressing chamber has a retaining edge around its perimeter, which can be fitted onto the outer wall of the membrane step. The film pressing chamber has a cotton strip pressing groove for installing a sponge pressing strip for film pressing.

8. The dust-free film-applying compartment of the top and bottom box according to claim 7, characterized in that, The top cover is also provided with a longitudinal hand-carved groove that runs through the pressing chamber.

9. The dust-free film-applying compartment of the top and bottom box according to claim 7, characterized in that, The upper cover is provided with protrusions on its edge, and the outer wall of the membrane step is provided with recesses that engage with the protrusions.

10. A dust-free film-applying container set with a top and bottom box, characterized in that, The device includes a dust-free film application compartment as described in any one of claims 1-9, and further includes a film assembly and a sponge strip. The film assembly includes an upper protective sheet, tempered glass, an adhesive layer, and a tension layer that are sequentially bonded together. The edge of the upper protective sheet is provided with a positioning hole that engages with the positioning post.

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