Guide rail type protective film, film applicator and film applicator kit

Abstract

This application relates to the technical field of screen protective films and provides a guide-rail protective film, a film applicator, and a film applicator kit. The guide-rail protective film comprises: a protective film layer for adhering to the screen surface of a mobile terminal; a first release film layer disposed on the side of the protective film layer facing away from the mobile terminal; and guide rails disposed on both ends of the first release film layer in the width direction. The guide rails are inserted into the guide rails of the film applicator during film application to limit the position of the first release film layer. This application solves the problem that the existing method of limiting the position of protective films by adhering stickers to the back of the film applicator can easily lead to improper film application.

Description

Technical Field

[0001] The present application relates to the field of film application technology, and more specifically, to a guide rail type protective film, a film applicator, and a film applicator kit. Background Art

[0002] Mobile terminals such as mobile phones and tablets have become an indispensable part of people's daily lives. With the continuous development of technology, their performance and appearance are also constantly upgraded and improved. In order to better protect mobile terminals such as mobile phones and prevent the screens of mobile terminals from being scratched or dirty during use, people usually put a layer of film on the screens of mobile phones and other electronic products.

[0003] Existing films, such as mobile phone films, still have some shortcomings. For example, a mobile phone protective film has appeared on the market, which is fixed by pasting stickers. The protective film is divided into a protective film layer and a release film layer. A limiting cavity is provided on one side of the film applicator, and a through hole is provided on the back of the film applicator. When applying the film, the mobile phone is placed in the limiting cavity for limiting, and then the protective film layer of the protective film is placed in the through hole, and the release film layer is pasted to the back of the film applicator through stickers on both sides. Since the two sides of the film layer are adhered to the back of the film applicator through centrifugal bonding, direct pasting will result in inaccurate bonding position, which will cause the protective film layer to deviate from the position of the mobile phone screen, which can easily cause the protective film layer to be crooked.

[0004] Therefore, the existing technology still needs to be improved and developed. Summary of the Invention

[0005] The purpose of the present application is to provide a guide rail type protective film, a film applicator and a film applicator kit, which solves the problem that the existing protective film is easily misapplied due to the method of limiting the position of the protective film by sticking a sticker to the back of the film applicator.

[0006] To achieve the above objectives, the technical solution adopted in this application is:

[0007] In one aspect, the present application provides a guide rail type protective film, comprising: a protective film layer, the protective film layer being used to be bonded to the screen surface of a mobile terminal;

[0008] a first release film layer, the first release film layer being disposed on a side of the protective film layer facing away from the mobile terminal;

[0009] Guide rail portions are provided on the sides of both ends of the first release film layer in the width direction. The guide rail portions are used to be inserted into the guide rails of the film applicator when the film is applied, so as to limit the position of the first release film layer.

[0010] Optionally, the guide rail type protective film further comprises: a second release film layer, the second release film layer being arranged on a side of the protective film layer away from the first release film layer;

[0011] The tearing portion has one end fixedly connected to the second release film layer.

[0012] Optionally, the protective film layer is a tempered film.

[0013] On the other hand, the present application also proposes a guide rail type protective film applicator, which is used to apply the protective film layer of the guide rail type protective film on the screen of the mobile terminal;

[0014] The guide rail type protective film applicator includes:

[0015] A housing, wherein a receiving cavity is defined in the housing, and an opening is provided on one side of the receiving cavity for receiving the mobile terminal;

[0016] A press window, which passes through the surface of the shell facing away from the opening and communicates with the accommodating cavity;

[0017] A guide track is provided on at least one of the side inner walls at both ends of the accommodating cavity in the width direction, and the guide track extends along the length direction. An inlet and outlet film port is provided on the side outer wall at one end of the length direction of the shell, and the inlet and outlet film port is connected to the accommodating cavity;

[0018] The guide rail portion of the guide rail type protective film is inserted into the guide track through the film inlet and outlet port, so that the protective film layer on the first release film layer is confined in the accommodating cavity.

[0019] Optionally, guide rails are provided on the inner walls of the sides of both ends of the accommodating cavity in the width direction;

[0020] A protruding portion is protruded from the inner wall of the side surface of the accommodating cavity, and a preset gap is provided between the protruding portion and the inner wall of the bottom surface of the accommodating cavity to form a guide track.

[0021] Optionally, the protruding portion on one side includes: a plurality of protruding platforms, the plurality of protruding platforms are spaced apart along the length direction, and a preset gap is formed between the protruding platforms and the inner wall of the bottom surface of the accommodating cavity;

[0022] A plurality of openings are provided on the inner wall of the bottom surface of the accommodating cavity, and the plurality of openings are correspondingly arranged with the plurality of protruding platforms.

[0023] Optionally, a sidewall on the shell opposite to the film inlet and outlet is provided with an air-avoiding slot, the air-avoiding slot is connected to the accommodating cavity, and the air-avoiding slot is used to accommodate the connecting end of the second release film layer and the tearing portion.

[0024] Optionally, a plurality of limiting portions are provided on the inner walls of the four sides of the accommodating cavity;

[0025] The limiting portion includes: a limiting side plate, which is protrudingly arranged on the side inner wall of the accommodating cavity and extends along the depth direction of the accommodating cavity;

[0026] The limiting bottom plate is protrudingly arranged on the limiting side plate and extending toward the center of the accommodating cavity;

[0027] A limiting step is formed between the limiting side plate and the limiting bottom plate, and the limiting step is used to abut against and limit the mobile terminal.

[0028] Optionally, an extension convex plate is provided on the bottom outer wall of the shell, and the extension convex plate is located on a side of the membrane inlet and outlet facing away from the accommodating cavity and extends away from the accommodating cavity;

[0029] The weight-reducing groove is provided on the extension convex plate and is located at the membrane inlet and outlet.

[0030] In a third aspect, the present application further provides a guide rail type protective film applicator kit, which includes the guide rail type protective film applicator as described above, and the guide rail type protective film as described above;

[0031] During film application, the side edges of both ends of the first release film layer in the width direction are inserted into the guide rails of the film applicator through the guide rail parts to limit the protective film layer in the accommodating cavity.

[0032] The beneficial effects of the guide rail type protective film, film applicator and film applicator kit provided in the present application are at least as follows: the guide rail type protective film is adapted to the film applicator to apply film to the mobile terminal; during the film application process, the first release film layer and the protective film layer are inserted into the film applicator, and during the insertion process, the guide rail portions provided on the sides of both ends of the first release film layer in the width direction are inserted into the guide rails of the film applicator, and the movement of the first release film layer is guided by the guide rails of the film applicator, so that the first release film layer and the protective film layer enter the accommodating cavity of the film applicator, and the guide rails limit the guide rail portions in the thickness direction and the width direction. The inner wall of the accommodating cavity of the film applicator can limit one end of the guide rail in the length direction, so that the first release film can only be pulled out of the accommodating cavity from one end in the length direction, so that the first release film can be limited by the cooperation of the guide rail and the guide portion, and the protective film on the first release film is also positioned in the accommodating cavity of the film applicator. After the mobile terminal is placed in the accommodating cavity, the position of the protective film layer is directly opposite to the screen of the mobile terminal. During use, the guide rail protective film moves smoothly in the guide track through the guide part. The guide part is stable during movement, and it and the guide track can achieve more accurate limiting, so that the protective film layer and the screen of the mobile terminal are not easily dislocated. The film application process is convenient to operate and the film application effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0034] Figure 1 A schematic structural diagram of a guide rail type protective film applicator provided in Example 1 of the present application;

[0035] Figure 2 for Figure 1 A magnified schematic diagram of point A;

[0036] Figure 3 A cross-sectional view of a guide rail type protective film applicator provided in Example 1 of the present application;

[0037] Figure 4 A schematic structural diagram of a guide rail type protective film applicator provided in Example 1 of the present application after the guide rail type protective film is inserted;

[0038] Figure 5 A cross-sectional view of a guide rail type protective film applicator provided in Example 1 of the present application during film application;

[0039] Figure 6 for Figure 5 An enlarged schematic diagram of point B;

[0040] Figure 7 A cross-sectional view of a guide rail type protective film provided in Example 2 of the present application;

[0041] Figure 8 A schematic structural diagram of a guide rail type protective film provided in Example 2 of the present application;

[0042] Figure 9 This is an exploded view of the film-applying kit for the guide rail type protective film provided in Example 3 of the present application.

[0043] Among them, the reference numerals in the figures are:

[0044] 10. Film applicator; 100. Housing; 110. Press window; 120. Accommodating cavity; 130. Guide rail; 131. Protruding portion; 132. Protruding platform; 133. Opening; 140. Film inlet and outlet; 150. Air-avoiding slot; 160. Limiting portion; 161. Limiting side plate; 162. Limiting bottom plate; 163. Limiting step; 170. Extended protruding plate; 171. Weight-reducing groove; 20. Guide rail protective film; 210. Protective film layer; 220. First release film layer; 221. Guide rail portion; 230. Second release film layer; 231. Tear portion; 30. Mobile terminal. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0046] It should be noted that when a component is referred to as being "fixed on" or "disposed on" another component, it may be located directly or indirectly on the other component. When a component is referred to as being "connected to" another component, it may be directly or indirectly connected to the other component. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the directions or positions shown in the accompanying drawings and are only for the convenience of description and cannot be understood as limitations on this technical solution. The terms "first" and "second" are only used for the purpose of convenience of description and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. "Multiple" means two or more, unless otherwise clearly and specifically defined.

[0047] The existing method of using stickers to secure the screen protector not only poses problems such as inaccurate and improper application, but also poses a risk of the screen protector being applied incorrectly. Furthermore, when the screen protector applicator is sold together with the screen protector, the stickers can easily become ineffective, causing them to fall off during bumpy shipping. This significantly impacts the quality of the screen protector. Furthermore, due to the limitations of the screen protector applicator, the protective film layer is small in area. This results in a large area of ​​the screen protector being exposed when the screen protector is applied to the screen.

[0048] Existing film application methods involve squeezing the film sheet into an applicator, securing it in place, and then placing the phone in the applicator to align the protective film before applying the film. This squeezing and securing of the protective film causes the edges of the film to deform, which can easily damage them. When applied to a mobile device, the edges can warp, creating bubbles and other issues, resulting in poor film application.

[0049] Example 1

[0050] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6As shown, this embodiment proposes a guide rail type protective film applicator for attaching the protective film layer 210 of the guide rail type protective film 20 to the screen of the mobile terminal 30. The adapted guide rail type protective film 20 has a protective film layer 210 and a first release film layer 220. The protective film layer 210 is used to adhere to the screen surface of the mobile terminal 30, thereby protecting the screen of the mobile terminal 30. Taking a mobile phone as an example, a mobile phone usually adopts a rectangular design, so the protective film layer 210 is also rectangular, wherein the direction of the long side is the length direction, the direction of the short side is the width direction, and the thickness is the thickness direction. As shown Figure 6 As shown, the first release film layer 220 is bonded to the side surface of the protective film layer 210 facing away from the mobile terminal 30. This side surface is opposite to the surface to be attached to the mobile phone screen, so this side surface is the upper surface, and the surface to be attached to the mobile phone screen is the lower surface. Figure 6 、 Figure 7 、 Figure 8 As shown, guide rails 221 are provided on both sides or one side of the first release film layer 220 in the width direction. The guide rails 221 and the first release film layer 220 can be bonded separately or the two can be directly integrally formed. Taking the integral forming of the first release film layer 220 and the guide rails 221 as an example, the guide rails 221 protrude from the side of the first release film layer 220. In this way, the film layer on the surface can not only fix the protective layer and prevent the protective film from falling off, but also the guide rails protruding from the side can be used for movement guidance. Figure 1 、 Figure 2 As shown, the guide rail type protective film applicator in this embodiment mainly includes: a housing 100, a pressing window 110, and a guide rail 130. A receiving cavity 120 is provided in the housing 100. One side of the receiving cavity 120 is provided with an opening for accommodating a mobile terminal. The mobile terminal can be placed into the receiving cavity 120 through the opening. The pressing window 110 passes through the surface of the housing 100 facing away from the opening and is connected to the receiving cavity 120; Figure 3 、 Figure 4 As shown, the guide track 130 is opened on at least one of the side inner walls at both ends of the accommodating cavity 120 in the width direction, and the guide track 130 is opened on an inlet and outlet at one end in the length direction. The guide track 130 is extended along the length direction, and an inlet and outlet film port 140 is opened on the side outer wall at one end in the length direction of the shell 100, and the inlet and outlet film port 140 is connected to the accommodating cavity 120; the inlet and outlet film port 140 is opposite to the inlet and outlet of the guide track 130, and the guide track portion 221 of the guide track type protective film 20 is inserted into the guide track 130 through the inlet and outlet film port 140, so that the protective film layer 210 on the first release film layer 220 is limited in the accommodating cavity 120.

[0051] The working principle of the guide rail type film applicator 10 of this embodiment is as follows: during the film application process, the entire guide rail type protective film 20 is inserted into the accommodating cavity 120 from the film inlet and outlet 140. During the insertion process, the guide rail portion 221 in the width direction of the first release film layer 220 is inserted into the guide rail 130 of the film applicator 10. The guide rail 130 guides the movement of the first release film layer 220, thereby carrying the protective film layer 210 into the accommodating cavity 120 of the film applicator 10 through the first release film layer 220. In addition, the guide rail 130 is arranged in the thickness direction and the width direction. The guide rail portion 221 is limited in the direction, and the inner wall of the accommodating cavity 120 of the film applicator 10 on the side away from the film inlet and outlet 140 can limit one end of the guide rail 130 in the length direction, so that the first release film can only be pulled out of the accommodating cavity 120 from one end in the length direction, thereby limiting the first release film through the cooperation of the guide rail 130 and the guide portion, and also positioning the protective film on the first release film when entering the accommodating cavity 120. After the mobile terminal is placed in the accommodating cavity 120, the position of the protective film layer 210 is facing the screen of the mobile terminal. During use, the guide rail protective film 20 moves smoothly within the guide track 130 via the guide portion. The guide portion will not be squeezed or deformed during movement, and the protective film layer 210 is completely located outside the guide track 130. During the film application process, the protective film layer 210 will not be squeezed or deformed. When the film application is completed, the film applicator 10 is directly removed, and the film applicator 10 can tear off the first release film in cooperation with the guide portion and the guide track 130, so that the protective film layer 210 is adhered to the screen surface of the mobile terminal. The torn first release film can then be pulled out from the guide track 130 of the film applicator 10, thus completing the film application process. During use, the guide portion of the guide rail protective film moves smoothly, and it and the guide track can achieve more accurate positioning, so that the protective film layer is not easily deviated from the screen of the mobile terminal. The film application process is convenient to operate and the film application effect is good. Moreover, when the guide rail type protective film and the film applicator are sold together, the guide part is limited in the guide rail. Since there is a packaging bag on the outside, the guide part is not easy to fall out of the guide rail, which is convenient for express delivery, ensures production quality and is easy to use.

[0052] This embodiment adopts a method of limiting the position of the guide part within the guide track, which reduces the manual alignment operation, reduces the difficulty of film application operation, and makes film application simpler, more convenient, and more efficient.

[0053] In this embodiment, guide rails 130 are provided on the side inner walls at both ends of the width direction of the accommodating chamber 120; in this embodiment, guide rails 130 are provided on the side walls opposite to each other in the width direction of the accommodating chamber 120. The rail openings of the two guide rails 130 are arranged opposite to each other. Two guide parts are provided on the opposing guide rail protective films 20. The guide parts on both sides of the first release film can slide within the rail openings of the guide rails 130. This achieves more stable guidance for the movement of the guide rail protective film 20. In this embodiment, a protrusion 131 is provided on the side inner wall of the accommodating chamber 120. There is a preset gap between the protrusion 131 and the bottom inner wall of the accommodating chamber 120 to form the guide rail 130.

[0054] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 As shown, there are multiple forms of forming the guide track 130 in this embodiment. Taking the protrusion 131 on one side as an example, one of the protrusions 131 specifically includes a plurality of protruding platforms 132. The plurality of protruding platforms 132 are spaced apart along the length direction. The protruding platforms 132 are higher than the bottom surface of the accommodating cavity 120. There is a preset gap between the protruding platforms 132 and the inner wall of the bottom surface of the accommodating cavity 120. The preset gap forms the guide track 130. The form of the protruding platforms 132 can save materials and reduce the weight of the entire film applicator 10. Secondly, the protruding platforms 132 are relatively small, easy to form during molding, and not easy to deform in size, thereby ensuring the size of the guide rail and smoothly cooperating with the guide part of the guide rail type protective film 20.

[0055] It is easy to imagine that the protrusion 131 can also be a whole protrusion strip, which extends along the length direction and forms a guide track 130 between the protrusion strip and the bottom inner wall of the accommodating cavity 120.

[0056] like Figure 2 、 Figure 9 As shown, the bottom inner wall of the accommodating chamber 120 in this embodiment is provided with a plurality of openings 133, which are arranged correspondingly to the plurality of protruding platforms 132. The plurality of openings 133 can reduce the weight of the entire film applicator 10, and when the guide portion moves within the guide track 130, the moving position of the guide portion can be observed from the top surface of the housing 100, allowing intuitive observation of whether the guide portion is in place.

[0057] like Figure 3As shown, a sidewall of the housing 100 of this embodiment, opposite to the film inlet and outlet port 140, is provided with an air-avoidance notch 150. The air-avoidance notch 150 communicates with the accommodating cavity 120 and is used to accommodate the connection between the second release film layer 230 and the tear-off portion 231. The second release film layer 230 is used to protect the protective film layer 210 before application, while the tear-off portion 231 facilitates removal of the second release film. The connection between the second release film layer 230 and the tear-off portion 231 protrudes from the protective film layer 210. Therefore, the provision of the air-avoidance notch 150 facilitates installation of the guide-rail protective film 20.

[0058] like Figure 1 、 Figure 2 、 Figure 5 、 Figure 6 As shown, in this embodiment, a plurality of limiting portions 160 are provided on the inner side walls of the accommodating chamber 120. The limiting portions 160 include: limiting side panels 161 and a limiting bottom panel 162. The limiting side panels 161 protrude from the inner side walls of the accommodating chamber 120 and extend along the depth direction of the accommodating chamber 120. The limiting bottom panel 162 protrudes from the limiting side panels 161 and extends toward the center of the accommodating chamber 120. A limiting step 163 is formed between the limiting side panels 161 and the limiting bottom panel 162. The limiting step 163 is used to abut and limit the mobile terminal. When the mobile terminal is inserted into the accommodating chamber 120 through the opening of the accommodating chamber 120, the limiting steps 163 limit the sides of the mobile terminal, preventing the mobile terminal from moving in both the length and width directions within the accommodating chamber 120. The surface of the limiting bottom plate 162 limits the screen side of the mobile terminal, so that there is a certain gap between the screen of the mobile terminal and the guide-type protective film 20, which facilitates the tearing of the second release film.

[0059] like Figure 1 、 Figure 9 As shown, the bottom outer wall of the housing 100 in this embodiment is provided with an extended protrusion 170 and a weight-reducing groove 171. The extended protrusion 170 is located on the side of the film inlet and outlet 140 facing away from the accommodating cavity 120 and extends away from the accommodating cavity 120. The weight-reducing groove 171 is provided on the extended protrusion 170 and is located at the film inlet and outlet 140. The extended protrusion 170 can support the second release film layer 230 and the tear portion 231.

[0060] Example 2

[0061] like Figure 6 、 Figure 7 、 Figure 8As shown, this embodiment proposes a guide rail type protective film 20 for use in conjunction with a film applicator 10 to achieve quick and convenient film application on mobile terminals, which can be electronic devices such as mobile phones and tablets. If it is not used in conjunction with the film applicator 10, it can also be used as an ordinary screen protector for manual film application. The guide rail type protective film 20 in this embodiment mainly includes: a protective film layer 210 and a first release film layer 220. The first release film layer 220 is attached to the upper surface of the protective film layer 210, and guide rail portions 221 are provided on the sides of both ends of the first release film layer 220 in the width direction. The guide rail portion 221 can be a piece of plastic film or plastic plate, and one side of the width direction is adhered to the upper surface of the first release film layer 220. The guide rail portion 221 is inserted into the guide rail 130 of the film applicator 10 when applying the film to limit the first release film layer 220. In another structure, the first release film layer 220 and the guide rail portion 221 can be integrally formed, with the guide rail portion 221 protruding from the side of the first release film layer 220. One or two guide rail portions 221 can be provided. If two guide rail portions 221 are provided on both sides of the first release film layer 220, both sides of the first release film layer 220 can be guided to slide into the film applicator 10, making the protective film layer 210 enter the film applicator 10 more smoothly.

[0062] The working principle of the guide rail type protective film 20 provided in this embodiment is as follows: the guide rail type protective film 20 is adapted to the film applicator 10 to apply the film to the mobile terminal; during the film application process, the first release film layer 220 and the protective film layer 210 are inserted into the film applicator 10. During the insertion process, the guide rail portions 221 provided on the sides of the two ends of the width direction of the first release film layer 220 are inserted into the guide rails 130 of the film applicator 10, and the movement of the first release film layer 220 is guided by the guide rails 130 of the film applicator 10, so that the protective film layer 210 is brought into the film application through the first release film layer 220. The first release film is placed in the receiving cavity 120 of the film applicator 10, and the guide rail 130 limits the guide rail portion 221 in the thickness direction and the width direction. The inner wall of the receiving cavity 120 of the film applicator 10 can limit one end of the guide rail 130 in the length direction, so that the first release film can only be pulled out of the receiving cavity 120 from one end in the length direction. The first release film can be limited by the cooperation of the guide rail 130 and the guide portion, and the protective film on the first release film is also positioned in the receiving cavity 120 of the film applicator 10. After the mobile terminal is placed in the receiving cavity 120, the position of the protective film layer 210 is facing the screen of the mobile terminal. During use, the guide rail type protective film 20 moves smoothly in the guide track 130 through the guide part. The guide part will not be squeezed and deformed during the movement, and the protective film layer 210 is completely located outside the guide track 130. During the film application process, the protective film layer 210 will not be squeezed and deformed. When the film application is completed, the film applicator 10 is directly removed. The first release film can be torn off by the film applicator 10 in cooperation with the guide part and the guide track 130, so that the protective film layer 210 is adhered to the screen surface of the mobile terminal, and then the torn first release film can be pulled out from the guide track 130 of the film applicator 10.

[0063] The beneficial effects of the guide rail type protective film 20 provided in this embodiment are at least as follows: the guide portion of the guide rail type protective film 20 cooperates with the guide rail 130 of the film applicator 10, so that the first release film can slide smoothly into the accommodating cavity 120 of the film applicator 10, thereby limiting the position of the protective film layer 210 on the first release film in the film applicator 10. During the film applicator process, the edge position of the protective film sheet will not be easily warped and generate bubbles due to the squeezing of the film applicator 10 during the film applicator process, and the film applicator process is easy to operate and has a good film applicator effect.

[0064] like Figure 6 、 Figure 7 、 Figure 8 As shown, Figure 2As shown, the guide rail protective film 20 in this embodiment also includes a second release film layer 230. The second release film layer 230 is adhered to the side of the protective film layer 210 away from the first release film layer 220. The second release film layer 230 is made of plastic film and adhered to the lower surface of the protective film layer 210. Before the protective film layer 210 is attached to the screen of the mobile terminal, the protective film layer 210 is covered and protected.

[0065] like Figure 6 、 Figure 7 、 Figure 8 As shown, in addition, a tearing portion 231 may be connected to the second release film layer 230 , and one end of the tearing portion 231 is fixedly connected to the second release film layer 230 by bonding or integral molding. Before film application, the second release film layer 230 with the tearing portion 231 follows the first release film layer 220 and the protective film layer 210 into the film applicator 10, and then the mobile terminal is placed in the film applicator 10 so that the screen of the mobile terminal is opposite to the tearing portion 231 of the second release film layer 230, and a certain gap is maintained between the tearing portion 231 and the screen of the mobile terminal. After alignment, the second release film layer 230 is pulled by the tearing portion 231, and the second release film layer 230 begins to separate from the protective film layer 210. The separated second release film layer 230 will be flipped over in the gap, and the flipped second release film layer 230 will contact the screen surface of the mobile terminal, so that the second release film can be pulled out of the film applicator 10 while in contact, so that the lower surface of the protective film layer 210 is exposed, and the dust on the screen of the mobile terminal is cleaned. Then, the first release film layer 220 is pressed downward from top to bottom, and the first release film layer 220 moves downward. The guide portion moves from the guide track 130, so that the first release film has enough space to deform downward, so that the protective film layer 210 moves downward and adheres to the surface of the mobile terminal.

[0066] It should be noted that an adhesive layer is provided on the surface of the protective film layer 210 facing the second release film layer 230. When the second release film layer 230 is torn off the protective film layer 210, the adhesive layer remains on the protective film layer 210. Therefore, when the protective film layer 210 is adhered to the screen of the mobile phone, it is adhered through the adhesive layer, so that the protective film layer 210 is not easy to fall off from the screen of the mobile phone.

[0067] The protective film layer 210 in this embodiment is a tempered film. The tempered film can effectively protect the screen. When the mobile terminal falls, the tempered film bears most of the impact and protects the screen of the mobile terminal. The screen of the mobile terminal does not break.

[0068] Example 3

[0069] like Figure 6 、 Figure 9As shown, the present application further proposes a guide rail type protective film applicator kit, which includes the guide rail type protective film applicator as described in the first embodiment, and the guide rail type protective film 20 as described in the second embodiment.

[0070] During film application, the side edges of both ends of the first release film layer 220 in the width direction are inserted into the guide rails 130 of the film applicator 10 through the guide rail portions 221 to confine the protective film layer 210 within the accommodating cavity 120. When the mobile terminal is placed into the accommodating cavity 120 through the opening, the screen of the mobile terminal is directly opposite the protective film layer 210. The second release film layer 230 is pulled by the tearing portion 231 and separated from the protective film layer 210. The first release film layer 220 is then pressed from the pressing window 110, and the protective film layer 210 is attached to the screen of the mobile terminal through the first release film layer 220. The housing 100 of the film applicator 10 is then lifted to separate the first release film layer 220 from the protective film layer 210, completing the film application.

[0071] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A guide rail type protective film applicator, characterized in that: Used to stick the protective film layer of the guide rail type protective film on the screen of the mobile terminal; The guide rail type protective film comprises: A protective film layer, the protective film layer being used to be bonded to the screen surface of the mobile terminal; a first release film layer, the first release film layer being disposed on a side of the protective film layer facing away from the mobile terminal; Guide rails are provided on both sides of the first release film layer in the width direction, and the guide rails are used to be inserted into the guide rails of the film applicator during film application to limit the position of the first release film layer; The guide rail type protective film further comprises: a second release film layer, the second release film layer being arranged on a side of the protective film layer away from the first release film layer; a tearing portion, one end of which is fixedly connected to the second release film layer; The guide rail type protective film applicator includes: a housing, wherein a housing is provided in the housing, and an opening is provided on one side of the housing for accommodating the mobile terminal; a press window, the press window penetrating through a surface of the housing facing away from the opening and communicating with the accommodating cavity; A guide track is provided on at least one of the side inner walls at both ends of the accommodating cavity in the width direction, and the guide track extends along the length direction. An inlet and outlet film port is provided on the side outer wall at one end of the length direction of the shell, and the inlet and outlet film port is connected to the accommodating cavity; The guide rail portion of the guide rail type protective film is inserted into the guide rail through the film inlet and outlet, so that the protective film layer on the first release film layer is confined in the accommodating cavity; Guide rails are provided on the inner walls of the sides of both ends of the accommodating cavity in the width direction; A protruding portion is protruded from the inner wall of the side surface of the accommodating cavity, and a preset gap is provided between the protruding portion and the inner wall of the bottom surface of the accommodating cavity to form the guide track; The protruding portion on one side includes: a plurality of protruding platforms, the plurality of protruding platforms are arranged at intervals along the length direction, and a preset gap is formed between the protruding platforms and the inner wall of the bottom surface of the accommodating cavity; A plurality of openings are provided on the inner wall of the bottom surface of the accommodating cavity, and the plurality of openings are provided correspondingly to the plurality of protruding platforms; A plurality of limiting parts are arranged on the inner walls of the four sides of the accommodating cavity.

2. The guide rail type protective film applicator according to claim 1, characterized in that: A sidewall on the shell opposite to the film inlet and outlet is provided with an air-avoiding slot, the air-avoiding slot is connected to the accommodating cavity, and the air-avoiding slot is used to accommodate the connecting end of the second release film layer and the tearing portion.

3. The guide rail type protective film applicator according to claim 1, characterized in that: The limiting portion includes: A limiting side plate, the limiting side plate is protrudingly provided on the side inner wall of the accommodating cavity and extending along the depth direction of the accommodating cavity; a limiting bottom plate, the limiting bottom plate being protruded from the limiting side plate and extending toward the center of the accommodating cavity; A limiting step is formed between the limiting side plate and the limiting bottom plate, and the limiting step is used to abut against and limit the mobile terminal.

4. The guide rail type protective film applicator according to claim 3, characterized in that: An extension convex plate is provided on the bottom outer wall of the shell, and the extension convex plate is located on a side of the membrane inlet and outlet facing away from the accommodating cavity and extends away from the accommodating cavity; A weight-reducing groove is provided on the extension convex plate and is located at the membrane inlet and outlet.

5. The guide rail type protective film applicator according to claim 1, characterized in that: The protective film layer is a tempered film.

6. A guide rail type protective film film application kit, characterized in that: A film applicator comprising the guide rail type protective film according to any one of claims 1 to 5, and a guide rail type protective film; During film application, the side edges of both ends of the first release film layer in the width direction are inserted into the guide rails of the film applicator through the guide rail parts to limit the protective film layer in the accommodating cavity.

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