Split cooperation type film applicator

Abstract

The utility model relates to intelligent equipment pasting film device technical field especially discloses a split cooperation formula pasting film device, including bearing base and with bearing base cooperation use's positioning frame, external intelligent terminal passes via bearing base limit, be equipped with first resistance and second resistance on the positioning frame, the positioning frame is used for the outside of external intelligent terminal of bearing base limit and is set, makes external intelligent terminal between bearing base and positioning frame, first resistance is used for external resistance smart terminal's screen frame, external protective film is used for inserting between second resistance and external intelligent terminal's screen, positioning frame is equipped with abstracts the mouth, when positioning frame sets in the outside of external intelligent terminal, the release film of protective film is driven under the draw -in strip and takes out positioning frame through abstracts the mouth to make the functional film of protective film pastes to the screen surface of external intelligent terminal.

Description

Technical Field

[0001] This utility model relates to the field of smart device film applicator technology, and in particular discloses a split-type film applicator. Background Technology

[0002] In existing technologies, screen protector application for smartphones and other smart devices typically relies on manual alignment and scraping, resulting in low positioning accuracy and issues such as air bubbles and dust contamination. Traditional screen protector application tools often employ a one-piece fixing structure, which cannot adapt to different device sizes, and the release film peeling process requires manual operation, easily leading to misalignment or wrinkles of the functional film. While screen protector applicators exist, they often require an additional positioning film to position the protective film onto the applicator, increasing costs. Furthermore, for curved screens or narrow-bezel devices, existing screen protector applicators lack effective bezel limiting and flexible pressing mechanisms, making it difficult to achieve precise adhesion between the protective film and the screen, affecting application success rates and user experience. Utility Model Content

[0003] In order to overcome the above-mentioned technical problems in the prior art, the purpose of this utility model is to provide a split-type film applicator to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, this utility model provides a split-type film applicator, comprising a support base and a positioning frame used in conjunction with the support base; an external smart terminal is positioned via the support base, and the positioning frame is provided with a first contact portion and a second contact portion. The positioning frame is used to fit over the outside of the external smart terminal positioned by the support base, so that the external smart terminal is located between the support base and the positioning frame. The first contact portion is used to externally contact the screen frame of the smart terminal, and the external protective film is used to insert between the second contact portion and the screen of the external smart terminal. The positioning frame is provided with a release port; when the positioning frame is fitted over the outside of the external smart terminal, the release film of the protective film is pulled out of the positioning frame through the release port under the action of the pull strip, so that the functional film of the protective film is applied to the screen surface of the external smart terminal.

[0005] Furthermore, one end of the positioning frame is movably mounted on one end of the support base. After the external smart terminal is limited by the support base, the positioning frame rotates relative to the support base to be fitted onto the outside of the external smart terminal.

[0006] Furthermore, one end of the bearing base is provided with a first protrusion, and the first protrusion is provided with a mounting hole. The end of the positioning frame away from the extraction port is provided with a first rotating shaft. The first rotating shaft is rotatably disposed in the mounting hole of the first protrusion. The end of the positioning frame away from the extraction port is rotatably engaged with the first end of the bearing base via the first rotating shaft and the mounting hole.

[0007] Furthermore, the positioning frame is provided with a first elastic buckle, and the bearing base is provided with a first buckle groove for accommodating the first elastic buckle. The positioning frame is movably engaged with the bearing base through the snap-fit ​​of the first elastic buckle and the first buckle groove.

[0008] Furthermore, there are multiple first elastic buckles, and the number of first buckle slots is the same as the number of first elastic buckles.

[0009] Furthermore, there are two first elastic buckles, which are located at the end of the positioning frame near the extraction port. There are also two first buckle slots, which are located at the end of the bearing base away from the first protrusion.

[0010] Furthermore, the positioning frame is provided with a removable part, the first elastic buckle is provided with a first arc-shaped part, and the first buckle groove is provided with a second arc-shaped part that abuts against and cooperates with the first arc-shaped part; the user pulls the removable part to move the positioning frame away from the bearing base, so that the first arc-shaped part and the second arc-shaped part move away from each other and release the buckle cooperation between the first elastic buckle and the first buckle groove.

[0011] Furthermore, the first contact portion has a contact surface and a clearance surface. The contact surface is used to contact the screen frame of the external smart terminal, and the clearance surface is located at one end of the extraction port. The clearance surface is used for the release film and pull strip of the external protective film to be applied and pulled out.

[0012] Furthermore, the distance between the avoidance surface and the screen of the external smart terminal is greater than or equal to 0 and less than the thickness of the protective film's functional membrane.

[0013] Furthermore, the positioning frame is provided with an elastic element, which is used to abut the side of the functional film away from the release film. The elastic restoring force of the elastic element is used to abut and push the functional film to bring it closer to and attach it to the screen of the external smart terminal to achieve air venting. The elastic element extends along the length direction and / or width direction of the functional film.

[0014] Furthermore, a pressing plate is provided at one end of the positioning frame near the extraction port. The pressing plate is integrally formed with the second contact part, and the elastic element is detachably disposed on the side of the pressing plate near the screen of the smart terminal.

[0015] Furthermore, the pressing plate is provided with a mounting slot, and the elastic element is a flexible cotton strip, which is attached to the mounting slot via an adhesive layer.

[0016] Furthermore, the first contact part is provided with an avoidance notch on the side near the extraction port. The release film strip protrudes out of the positioning frame through the avoidance notch, and the avoidance notch penetrates the first contact part in a direction parallel to the opening direction of the extraction port.

[0017] Furthermore, the positioning frame is provided with a first locking post and an attachment, and the release film and / or pull strip of the outer protective film are provided with a release groove. The release groove has a through hole for accommodating the first locking post and an expansion opening communicating with the through hole. The expansion opening is a blind hole or a perforation or break line penetrating the edge of the release film. One end of the outer protective film is limited at the end of the positioning frame away from the extraction port by the cooperation of the release groove and the first locking post, and the other end of the outer protective film is limited at the end of the positioning frame near the extraction port by the attachment.

[0018] Furthermore, the support base has a placement groove, in which multiple support blocks are provided. The support blocks are used to abut against the outer side of the external smart terminal. The multiple support blocks are arranged around the circumferential direction of the support base, and the support blocks are provided with stepped portions for abutting against the frame and back cover of the external smart terminal.

[0019] This invention solves the aforementioned problems through a split-structure design. Its core principle lies in the coordinated operation of the support base and the positioning frame to form a dynamic limiting space. The first contact part precisely engages with the smart terminal frame, while the second contact part forms a protective film insertion channel with the screen. When the positioning frame rotates and fits onto the outside of the terminal, the extraction port and the avoidance surface constitute a release film peeling path. Automatic extraction of the release film is achieved through the pull strip, while the elastic element applies flexible pressure to ensure the functional film adheres without air bubbles. The rotational engagement and latching mechanism ensure precise opening and closing of the positioning frame, while the stepped support block achieves compatibility with multiple models. This design integrates the three key actions of positioning, peeling, and pressing in the traditional film application process into a single mechanical operation.

[0020] The beneficial effects of this utility model are as follows: First, by using the cooperative structure of the support base and the positioning frame, the positioning film required in the traditional film application process is completely eliminated. Simply put the smart terminal into the support base and cover the positioning frame, and then insert the protective film between the second contact part and the screen to achieve automatic and accurate alignment, which greatly simplifies the operation process.

[0021] Secondly, the synergistic effect of the extraction port design and the first and second contact parts ensures that the release film maintains a stable position of the functional film during the extraction process, effectively avoiding the film displacement or edge curling problems caused by traditional film tearing methods.

[0022] Finally, the flexible pressing mechanism of the elastic element, combined with the gap design of the avoidance surface, can automatically eliminate air bubbles during the film application process, while adapting to protective films of different thicknesses to ensure the smoothness and reliability of the application effect. Furthermore, the split-type structure design of this film applicator makes it compatible with smart terminals of various sizes, thus having wider applicability. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the split-type film applicator of this utility model.

[0024] Figure 2 A schematic diagram of the structure of the split-type film applicator of this utility model when an external smart terminal and an external protective film are accommodated;

[0025] Figure 3 This is a schematic diagram of the positioning frame of the split-type film applicator of this utility model in the open state.

[0026] Figure 4 This is an exploded structural diagram of the split-type film applicator of this utility model;

[0027] Figure 5 This is a schematic diagram of the structure of the bearing base of this utility model;

[0028] Figure 6 This is a schematic diagram of the positioning frame of this utility model;

[0029] Figure 7 This is a partial cross-sectional structural diagram of the positioning frame of this utility model;

[0030] Figure 8 This is a partial cross-sectional view of the split-type film applicator of this utility model after accommodating an external smart terminal and an external protective film.

[0031] Figure 9 for Figure 8 A magnified structural diagram of part A in the middle;

[0032] Figure 10 for Figure 8 A magnified structural diagram of part B in the middle section;

[0033] Figure 11 This is a partial structural schematic diagram of another preferred embodiment of the present invention;

[0034] Figure 12 for Figure 11 A magnified structural diagram of section C.

[0035] The reference numerals in the figures include:

[0036] 1. Support base; 2. Positioning frame; 3. Removal port; 4. Protective film; 5. Smart terminal; 11. First protrusion; 111. Mounting hole; 12. First buckle groove; 121. Second arc-shaped part; 13. Placement groove; 131. Support block; 132. Step part; 20. First locking post; 201. Attachment; 21. First contact part; 211. Contact surface; 212. Avoidance surface; 213. Avoidance notch; 22. Second contact part; 23. First pivot; 24. First elastic buckle; 241. First arc-shaped part; 25. Pressing plate; 251. Mounting slot; 26. Elastic element; 27. First avoidance groove; 28. Second avoidance groove; 41. Release film; 42. Pull strip; 421. Connecting ear; 43. Functional film; 45. Through hole; 46. Expansion opening. Detailed Implementation

[0037] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0038] Please see Figures 1 to 12 As shown, this utility model discloses a split-type screen protector, which consists of a support base 1 and a positioning frame 2 movably mounted on the support base 1. The support base 1 is a thin-walled support with an upward-opening design. It has a placement groove 13 and several support blocks 131 (two on each side in the length direction and two on each side in the width direction) arranged around its circumference. The top of the support block 131 forms a stepped portion 132 to simultaneously limit the side frame and back cover edge of the external smart terminal 5, so that the terminal is placed in the placement groove 13 with the screen facing upward and its long side parallel to the long side of the support base 1. The periphery of the support base 1 is provided with anti-slip pads or micro-textures to improve the placement friction.

[0039] Specifically, the positioning frame 2 has a rectangular frame structure, with a first contact part 21 and a second contact part 22 surrounding the inner side. The two contact parts are stacked on each other and integrally formed with the inner edge of the positioning frame 2. The first contact part 21 forms a rigid limiting surface facing the screen frame, and the second contact part 22 forms a constant insertion gap with the screen after the cover is closed, for the insertion of the external protective film 4 assembly. The positioning frame 2 has a pull-out port 3 at the tail, which penetrates the wall thickness of the positioning frame 2 to form a peeling channel for the release film 41 and the pull strip 42.

[0040] During assembly, the user first places the phone into the placement slot 13 of the support base 1. The stepped portion 132 of the support block 131 forms a surface-line composite limiting around the phone. Then, the positioning frame 2 is closed, forming an upper and lower clamping structure with the support base 1, and the phone is held between the support base 1 and the positioning frame 2. At this time, the first contact portion 21 makes linear contact along the black edge of the phone screen or the top of the middle frame, and the second contact portion 22 forms a stable insertion gap with the screen surface. One end of the protective film 4 assembly can be inserted through this gap and positioned along the screen surface, i.e., positioned by means of the frame-like positioning frame 2 and the second contact portion 22. The release film 41 pull strip 42 is exposed from the extraction port 3 for gripping. This structural design allows the protective film 4 to be removed from the positioning film, eliminating the need for positioning film, shortening the operation steps, and saving manufacturing costs.

[0041] During operation, the release film 41 of the protective film 4 is continuously pulled out along the extraction port 3 under the traction of the pull strip 42, while the functional film 43 remains in its original position on the screen without moving. The split upper and lower clamping structure allows the whole machine to form a stable clamping cavity. The first contact part 21, the second contact part 22 and the extraction port 3 work together to establish a unidirectional process path of "introduction-positioning-peeling". Users can complete precise bonding without additional positioning film, significantly reducing the risk of alignment deviation and wrinkles.

[0042] Specifically, the positioning frame 2 and the support base 1 are rotatably coupled at one end. Preferably, the side of the positioning frame 2 away from the extraction port 3 is made into a hinged edge. The support base 1 is provided with an integrated first protrusion 11, on which a mounting hole 111 is formed. The positioning frame 2 is arranged with a first rotating shaft 23 at a corresponding position. During assembly, the first rotating shaft 23 is pressed into the mounting hole 111 by interference fit or snap-fit, forming a flip-type rotating structure with a single degree of freedom. The rotation center of the hinge is located on the outer side of the upper plane of the support base 1, so that the positioning frame 2 can sweep around the outer side of the phone frame when flipped, avoiding scratching the screen and film.

[0043] In actual manufacturing, elastic lugs or miniature torsion springs can be integrally formed on both sides of the hinge to keep the positioning frame 2 self-holding in the open state and create a slight preload at the closed end to improve clamping stability. A locking mechanism is provided between the other end of the positioning frame 2 (the end closer to the extraction port 3) and the support base 1 for easy locking after closing. The rotating fit allows the positioning frame 2 to flip open and close quickly like the top cover, facilitating the insertion of the diaphragm and ensuring consistent trajectory for repeated closing, reducing alignment deviations caused by human angle errors. Simultaneously, the hinge preload prevents the positioning frame 2 from lifting after fitting, making the peeling and pressing processes more stable.

[0044] Specifically, the locking mechanism is as follows: a first elastic buckle 24 is provided on the edge of the positioning frame 2 near the extraction port 3, and a first locking groove 12 is formed on the corresponding part of the support base 1. The end of the first elastic buckle 24 is formed into a first arc-shaped part 241 that protrudes outward, and a second arc-shaped part 121 that engages with the front edge of the first locking groove 12 is formed therewith. When the cover is closed, the first arc-shaped part 241 elastically passes over the second arc-shaped part 121 and springs into the first locking groove 12, thus completing the locking. When unlocking, the outer edge of the positioning frame 2 is integrally provided with a removable part. The user can hook the removable part with their fingertip to make the positioning frame 2 move slightly away from the support base 1, and the first arc-shaped part 241 disengages from the inclined surface of the second arc-shaped part 121, thereby releasing the lock.

[0045] Specifically, in this embodiment, the clearance notch 213 is an arc-shaped notch, and its opening size is designed to accommodate the space between users, that is, the clearance notch 213 is used as a disassembly part. In actual manufacturing, protruding strips or pull rings or other structures can be integrally formed on the positioning frame 2 as disassembly parts.

[0046] To accommodate variations in clamping force caused by different machine models and film thicknesses, the first elastic buckle 24 in this embodiment is arranged symmetrically in two locations, and the first buckle groove 12 is also correspondingly paired. The first elastic buckle 24 is made of resilient engineering plastic and has a thinning groove at its base to improve cycle life. The design of the first elastic buckle 24, the first buckle groove 12, and the easy-to-unlock part forms a quick-locking mechanism that ensures axial clamping force and lateral anti-movement during the closing process. The positioning frame 2 will not open due to the pull strip 42 during the film application process, and it can be quickly unlocked with one hand after completion, improving operational efficiency.

[0047] Specifically, the first contact part 21 is an annular step, forming a continuous contact surface 211 facing the screen frame. At the same time, a relief surface 212 is recessed into the positioning frame 2 on the side where the extraction port 3 is located. After the cover is closed, the relief surface 212 forms a small gap or light contact with the screen surface, so that the release film 41 and the pull strip 42 can pass smoothly along this point without pushing up the leading edge of the functional film 43.

[0048] Preferably, the avoidance surface 212 is a planar structure. In actual manufacturing, the avoidance surface 212 can also be a wavy surface or a concave-convex surface. When the avoidance surface 212 is a wavy surface, the distance between the crest of the wavy surface and the screen of the smart terminal 5 is less than the thickness of the functional film 43. When the avoidance surface 212 is a concave-convex surface, the distance between the convex tip of the concave-convex surface and the screen of the smart terminal 5 is less than the thickness of the functional film 43.

[0049] Specifically, in this embodiment, the distance between the clearance surface 212 and the screen surface is set to a range no greater than the thickness of the functional film 43, so that the release film 41 and the pull strip 42 are gently confined within the clearance channel and slide out along the surface. In actual use, through this size design, during the process of pulling the pull strip 42 and the release film 41, the tail edge of the functional film 43 will abut against the side wall of the first contact part 21 and will not be simultaneously pulled away from the extraction port 3 by the release film 41. This avoids lifting the film and scratching the screen, and the peeling path is single and stable, reducing bubbling and edge lifting from the source, and also preventing the functional film 43 from shifting position.

[0050] Specifically, the second contact part 22 forms a precise insertion gap between the inner edge of the positioning frame 2 and the screen surface. This gap, when closed, forms a narrow inlet with the screen. The user guides the tail end of the protective film 4 assembly along the second contact part 22 and inserts it. A gap is left between the second contact part 22 and the screen. The sidewalls of the second contact part 22 restrict the lateral movement and twisting of the protective film 4, thus limiting the protective film 4 on all four axes. The insertion gap standardizes the insertion path of the protective film 4, allowing the operator to guide the leading edge of the film to the screen reference line position in one go without repeated alignment, significantly reducing positioning errors at the first contact point. Eliminating the need for a positioning film further saves costs and simplifies the application process.

[0051] Specifically, to ensure that the pull strip 42 of the release film 41 can be reliably gripped after the positioning frame 2 is closed, a clearance notch 213 is provided on the side of the first contact part 21 near the extraction port 3. The clearance notch 213 is parallel to the opening direction of the extraction port 3 and extends through the thickness of the first contact part 21. The pull strip 42 protrudes to the outside of the positioning frame 2 through the clearance notch 213 and is lightly pressed and limited by the side wall of the notch after the cover is closed to prevent retraction. The side walls of the clearance notch 213 are provided with smooth chamfers to reduce the wear of the pull strip 42. The bottom of the notch is connected to the clearance surface 212 to form an integrated peeling groove. The clearance notch 213 provides a fixed outlet and a constant lead-out angle for the pull strip 42, with a clear pulling direction, low friction, no twisting or tearing during the peeling process, and better controllability of the action.

[0052] Specifically, in order to solve the problems of air release and pressure relief during the bonding process, a pressing plate 25 is provided in the side of the positioning frame 2 near the second contact part 22. The pressing plate 25 is integrally formed with the second contact part 22, so that it forms a surface covering along the screen surface after the cover is closed. A mounting slot 251 is reserved on the side of the pressing plate 25 facing the screen for disassembling and assembling the elastic element 26.

[0053] The elastic element 26 is preferably a flexible cotton strip, EVA foam, or silicone strip, with a cross-section slightly higher than the depth of the slot, and slightly higher than the plane of the pressing plate 25 after installation. For example, when the cover is closed, the elastic element 26 first contacts and is compressed with the functional film 43 at the periphery of the positioning frame 2. As the pull strip 42 is pulled out, the elastic element 26 releases its elasticity and presses the functional film 43 flexibly against the screen surface from top to bottom, so that the adhesive surface of the functional film 43 gradually adheres to the screen surface with the help of van der Waals forces, improving the uniformity of adhesion and the screen adhesion rate.

[0054] Specifically, the elastic element 26 can be arranged along the length or width of the functional membrane 43, or it can be arranged in a staggered manner to form a grid-like micro-pressure area to adapt to different screen sizes. The elastic element 26 provides continuous, uniform and progressive holding force without scratching the membrane. In conjunction with the rhythm of the release membrane 41 being withdrawn synchronously, it significantly improves the exhaust efficiency and reduces air bubbles and water ripples.

[0055] Specifically, the inner sidewall of the placement slot 13 of the supporting base 1 is provided with two first clearance slots 27, which are used to avoid the power switch, volume control, and mode control buttons of the external smart terminal 5. In actual use, the first clearance slots 27 can also be through slots, that is, through the sidewall of the placement slot 13.

[0056] Specifically, the bottom of the placement slot 13 is provided with a second clearance slot 28. The second clearance slot 28 is used to accommodate the protruding lens module of the smart terminal 5. In this embodiment, the second clearance slot 28 is a through slot, that is, it is set through the bottom wall of the placement slot 13. In actual use, the thickness of the bottom wall of the placement slot 13 can be increased and the second clearance slot 28 can be designed as an open slot.

[0057] The screen protector application process is as follows: First, place the phone into the placement slot 13 of the support base 1. Multiple support blocks 131 with stepped portions 132 abut against each other on all sides to achieve three-way positioning in the longitudinal, transverse, and thickness directions. If necessary, support blocks 131 of different heights can be replaced to adapt to different models. Second, flip up the positioning frame 2 and guide the tail end of the protective film 4 along the second abutment portion 22 to the front edge of the screen, so that the protective film 4 is located between the second abutment portion 22 and the screen, and the release film 41 pull strip 42 is exposed outward through the avoidance notch 213. Third, rotate and close the positioning frame 2 and lock it with the first elastic buckle 24 and the first buckle slot 12. The first abutment portion 21 abuts against the screen edge to establish a circumferential reference, and the pressing plate... 25. The elastic element 26 and the functional film 43 are lightly touched and pre-pressed; Fourth step, the operator grasps the pull strip 42 and pulls it smoothly along the direction of the extraction port 3. The release film 41 is guided out of the frame at the extraction port 3 and takes away the dust between the screen and the adhesive surface of the functional film 43. Under the action of the elastic force released by the elastic element 26, the adhesive surface of the functional film 43 gradually adheres to the screen with the help of van der Waals force; Fifth step, after the pull strip 42 is pulled out into place, the fingertip is inserted into the avoidance notch 213 and lifted to release the locking of the first elastic buckle 24 and the first buckle groove 12. The positioning frame 2 is flipped up to check the film surface. If there is still a small amount of air at the edge, the air bubbles can be scraped out with the help of an external cotton cloth or a flexible scraper; Sixth step, the phone is removed to complete the film application.

[0058] In another preferred embodiment, the positioning frame 2 is provided with a first locking post 20 and an attachment 201. The release film 41 and / or the pull strip 42 of the outer protective film 4 are provided with a release groove. The release groove has a through hole 45 for accommodating the first locking post 20 and an expansion opening 46 communicating with the through hole 45. The expansion opening 46 is a blind hole or a perforation or break line penetrating the edge of the release film. One end of the outer protective film 4 is limited at the end of the positioning frame 2 away from the extraction port by the cooperation of the release groove and the first locking post 20. The other end of the outer protective film 4 is limited at the end of the positioning frame 2 near the extraction port by the attachment 201.

[0059] Specifically, in this embodiment, the release groove is provided on the connecting ear 421 of the pull strip 42, and the expansion opening 46 is a perforation that penetrates the edge of the release film.

[0060] Specifically, the attachment 201 is an adhesive layer or adsorption layer disposed between the positioning frame 2 and the protective film 4. In this embodiment, the attachment 201 is an adhesive layer disposed between the positioning frame 2 and the functional film 43.

[0061] In actual manufacturing, the protective film 4 and the positioning frame 2 can be pre-positioned together using the above structure. In actual use, after fastening the positioning frame 2 to the support base 1, pull the pull bar 42, causing it to pull the release film 41 out of the extraction port 3. During this process, the design of the expansion opening 46 allows the pull bar 42 to disengage from the first locking post 20 with minimal resistance, thus removing the restriction imposed by the positioning frame 2 on the release film 41 and the pull bar 42. After the film is applied, one hand can press down on the functional film 43, while the other hand pulls the positioning frame 2, rotating it around the first pivot 23, causing the positioning frame 2 to remove the adhesive layer from the functional film 43.

[0062] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A split-type film applicator, characterized in that: The system includes a support base (1) and a positioning frame (2) used in conjunction with the support base (1). The support base (1) is used to house an external smart terminal (5). The positioning frame (2) is provided with a first contact part (21) and a second contact part (22). The positioning frame (2) is used to be fitted onto the outside of the external smart terminal (5) housed by the support base (1). The first contact part (21) is used to externally contact the screen frame of the smart terminal (5). An external protective film (4) is used to be placed between the second contact part (22) and the screen of the external smart terminal (5). The positioning frame (2) is provided with a pull-out opening (3). When the positioning frame (2) is fitted onto the outside of the external smart terminal (5), the release film (41) of the protective film (4) is pulled out of the positioning frame (2) through the pull-out opening (3) under the action of the pull strip (42), so that the functional film (43) of the protective film (4) is attached to the screen surface of the external smart terminal (5).

2. The split-type film applicator according to claim 1, characterized in that: One end of the positioning frame (2) is movably mounted on one end of the bearing base (1). After the external smart terminal (5) is limited by the bearing base (1), the positioning frame (2) rotates relative to the bearing base (1) to be fitted onto the outside of the external smart terminal (5).

3. The split-type film applicator according to claim 2, characterized in that: One end of the bearing base (1) is provided with a first protrusion (11), and the first protrusion (11) is provided with a mounting hole (111). The end of the positioning frame (2) away from the extraction port (3) is provided with a first rotating shaft (23). The first rotating shaft (23) is rotatably disposed in the mounting hole (111) of the first protrusion (11). The end of the positioning frame (2) away from the extraction port (3) is rotatably engaged with the first end of the bearing base (1) via the first rotating shaft (23) and the mounting hole (111).

4. The split-type adhesive film applicator according to claim 1, characterized in that: The positioning frame (2) is provided with a first elastic buckle (24), and the bearing base (1) is provided with a first buckle groove (12) for accommodating the first elastic buckle (24). The positioning frame (2) is movably engaged with the bearing base (1) through the snap-fit ​​of the first elastic buckle (24) and the first buckle groove (12).

5. The split-type film applicator according to claim 4, characterized in that: The positioning frame (2) is provided with a removable part, the first elastic buckle (24) is provided with a first arc-shaped part (241), and the first buckle groove (12) is provided with a second arc-shaped part (121) that abuts against the first arc-shaped part (241). The user pulls the removable part to move the positioning frame (2) away from the bearing base (1), so that the first arc-shaped part (241) and the second arc-shaped part (121) move away from each other and release the first elastic buckle (24) from the first buckle groove (12).

6. The split-type film applicator according to claim 1, characterized in that: The first contact part (21) is formed with a contact surface (211) and a clearance surface (212). The contact surface (211) is used to contact the screen frame of the external smart terminal (5). The clearance surface (212) is located at one end of the extraction port (3). The clearance surface (212) is recessed from the contact surface (211). The clearance surface (212) is used for the release film (41) and the pull strip (42) of the external protective film (4) to be attached and pulled out.

7. The split-type film applicator according to claim 6, characterized in that: The distance between the avoidance surface (212) and the screen of the external smart terminal (5) is greater than or equal to 0 and less than the thickness of the functional film (43) of the protective film (4).

8. The split-type film applicator according to claim 1, characterized in that: The positioning frame (2) is provided with an elastic element (26). The elastic element (26) is used to abut against the side of the functional film (43) away from the release film (41). The elastic restoring force of the elastic element (26) is used to abut against and push the functional film (43) so that it is close to and attached to the screen of the external smart terminal (5) to achieve air venting. The elastic element (26) extends along the length direction and / or width direction of the functional film (43).

9. The split-type film applicator according to claim 1, characterized in that: The first contact part (21) has a clearance notch (213) on the side near the extraction port (3). The pull strip (42) of the release film (41) protrudes out of the positioning frame (2) through the clearance notch (213). The clearance notch (213) passes through the first contact part (21) in a direction parallel to the opening direction of the extraction port (3).

10. The split-type film applicator according to claim 1, characterized in that: The positioning frame (2) is provided with a first locking post (20) and an attachment (201). The release film (41) and / or the pull strip (42) of the outer protective film (4) are provided with a release groove. The release groove has a through hole (45) for accommodating the first locking post (20) and an expansion opening (46) communicating with the through hole (45). The expansion opening (46) is a blind hole or a perforation or break line through the edge of the release film. One end of the outer protective film (4) is limited to the end of the positioning frame (2) away from the extraction port by the cooperation of the release groove and the first locking post (20). The other end of the outer protective film (4) is limited to the end of the positioning frame (2) near the extraction port by the attachment (201).

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