Film pasting device capable of applying constant downward pressure to rolling component

Abstract

The utility model relates to the technical field of film sticking devices, in particular to a film sticking device capable of applying constant downward pressure to a rolling component, which is used for assisting in sticking a protective film on a screen to be stuck with the film and comprises a base and an upper cover which are mutually covered, and a positioning groove for positioning the screen to be stuck with the film is arranged on the base. A film positioning structure used for positioning the protective film is further arranged on the base or the upper cover, a rolling component used for sweeping the whole protective film in a rolling mode is further connected to the upper cover in a sliding mode, and at least one covering and locking structure is further arranged between the upper cover and the base. Through the cooperation of the multiple one-way lock catches and the buckling parts, downward pressure is sequentially applied to the rolling parts in the process that the rolling parts roll and sweep over the whole protective film, so that in the process of operating the rolling parts, the multiple one-way lock catches and the buckling parts are matched, and therefore the rolling parts are driven to roll and sweep over the whole protective film. When the rolling part rolls to the position over the screen to be subjected to film pasting, enough and uniform force can be provided for counteracting the reverse acting force applied to the rolling part by the screen to be subjected to film pasting.

Description

Technical Field

[0001] The utility model relates to the technical field of film applicators, in particular to a film applicator capable of applying a constant downward pressure to a rolling component. Background Art

[0002] The film applicator is an auxiliary tool used to apply tempered film to mobile phones and other devices more conveniently and accurately; it usually has the following features and functions: Precise positioning: helps ensure that the tempered film can be accurately attached to the screen to avoid problems such as crooked attachment or bubbles. Easy operation: makes the film application process relatively easy, even non-professionals can complete the film application well. Protective effect: during the film application process, it can protect the screen to a certain extent and prevent accidental scratches or damage; different types of film applicators may have different designs, but the purpose is to improve the efficiency and effect of film application.

[0003] In order to achieve a better exhaust effect and a higher film-applying speed during the film-applying process, the prior art generally integrates a rolling component structure on the film-applying device. After the protective film and the screen to be film-applied are positioned, the rolling component is used to roll the protective film laterally along the upper end of the protective film, so that the protective film can be attached to the screen to be film-applied in an orderly exhaust manner from one end to the other end. In addition, during the rolling operation, the rolling component can apply a rolling force from top to bottom to the protective film, so that the protective film and the product to be film-applied can be more quickly and tightly attached, that is, the speed of exhaust between the protective film and the screen to be film-applied can be increased by operating the rolling component; thereby achieving a better and faster film-applying effect;

[0004] However, since the protective film itself is relatively thin, it will basically have a certain degree of deformability. The rolling component needs to apply uniform downward pressure to the protective film, especially by quickly pushing the rolling component to quickly attach the protective film to the screen to be attached. If the material on which the rolling component is installed does not have sufficient strength, and the operator is uncertain about the longitudinal force applied when operating the rolling component, the rolling component may have a situation where the downward pressure decreases and then increases when rolling the protective film. When the rolling component is pushed quickly, it is very likely that the section with less downward pressure will produce different deformations, so that the protective film and the screen to be attached at this position cannot be exhausted in time, thereby causing bubbles to be generated or not closely attached, resulting in the gradual generation of bubbles due to loose attachment during later use. Since the hydrogel film itself has a greater deformation effect, the situation reflected on the hydrogel film will be more prominent.

[0005] In this regard, when the protective film is attached to the screen to be attached by pushing the rolling component downward and rolling, if the rolling component is to be pushed quickly to achieve faster exhaust between the protective film and the screen to be attached, a greater downward pressure needs to be applied accordingly; however, if the downward pressure is too large, the protective film or the screen may be crushed. Therefore, when setting up this type of film applicator, a base for positioning the screen to be attached and a rolling component slidably connected to the base are generally provided;

[0006] However, in the prior art, some film applicators are configured to have a structure of a base and an upper cover, and the base and the upper cover are covered by positioning and matching, or the base and the upper cover are covered by flipping. For this type of film applicator with an upper cover structure, the upper cover is generally made of thin plastic, which is highly deformable, and the covering and locking structure between the upper cover and the base generally acts on the four corners of the upper cover. If the rolling component is set on the upper cover, the upper cover will be deformed by the reverse force generated between the screen to be filmed and the rolling component because the downward pressure applied by the upper cover to the rolling component is insufficient, especially in the middle of the long side of the upper cover, which will cause the rolling component to be pushed quickly. The downward pressure applied to the protective film during the movement is uneven. Therefore, during the film sticking process, this type of flip-top film applicator with an integrated rolling component on the upper cover requires the user to continuously apply a certain downward pressure to achieve a better film sticking effect. Users often do not consider this when using it after purchase. Even if it is emphasized in text, many users still do not consider this. Even if downward pressure is applied, there will be changes in the downward pressure intensity, resulting in poor use effect of the flip-top film applicator with an integrated rolling component on the upper cover, and also causing waste of the protective film. In this regard, it is necessary to propose an improved technical solution to solve the above problems. Utility Model Content

[0007] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0008] A film applicator capable of applying constant downward pressure to a rolling component, used for assisting in attaching a protective film to a screen to be pasted with the film, comprising a base and an upper cover overlapping each other, a positioning groove for positioning the screen to be pasted with the film is arranged on the base, a film positioning structure for positioning the protective film is also arranged on the base or the upper cover, a rolling component for rolling and sweeping the entire protective film is also slidably connected to the upper cover, at least one covering locking structure is also arranged between the upper cover and the base, the covering locking structure comprises a toggle bar resettably connected to the base, a plurality of one-way lock buckles formed on the toggle bar, and a buckle portion formed at the lower end of the upper cover and matched with the plurality of one-way lock buckles, the cooperation of the plurality of one-way lock buckles and the buckle portion is configured to sequentially apply downward pressure to the rolling component in the process of the rolling component rolling and sweeping the entire protective film.

[0009] Preferably, one covering and locking structure is provided, and one side of the upper cover and the base are rotationally connected, and the covering and locking structure is provided at a position relative to the other side of the upper cover and the base that are rotationally connected.

[0010] Preferably, two covering and locking structures are provided, and the two covering and locking structures are respectively arranged at two parallel sides between the base and the upper cover, and the sliding direction of the rolling component is parallel to the length direction of the covering and locking structure.

[0011] Preferably, a long groove structure is provided at the bottom of the base at a position corresponding to the installation position of the covering and locking structure, the toggle bar is slidably connected in the long groove structure, and the covering and locking structure also includes a fixing bar fixedly covered on the long groove structure, so that the toggle bar is restricted in the long groove structure, and an opening is also provided on the base along the top of the long groove structure for the buckle portion to extend and move.

[0012] Preferably, one end of the toggle bar is connected to a return spring, the return spring is abutted against an inner wall of one end of the long slot structure, and the toggle bar is reset by the return spring.

[0013] Preferably, the two long walls in the long slot structure are respectively provided with a plurality of buckles, and the fixing strip is provided with slots corresponding to the buckles, and the fixing strip is fixedly covered on the long slot structure by the cooperation of the slots and the buckles.

[0014] Preferably, a toggle opening connected to the long slot structure is provided on the side wall of the base corresponding to the cover locking structure, and a toggle key extending along the toggle opening to the side of the base is formed on the toggle bar.

[0015] Preferably, the toggle opening extends to penetrate the lower end of the base, and a blocking portion is formed on the fixing bar to block the lower part of the toggle opening.

[0016] Preferably, the one-way lock includes a connecting portion formed on the toggle bar and a fastening portion formed on the connecting portion, the fastening portion extends laterally along the upper end of the connecting portion, and the fastening portion has an inclined surface at the upper end and a flat surface at the lower end, the lower end of the fastening portion can resist the inclined surface of the upper end of the fastening portion to guide the toggle bar to slide, and the upper end of the fastening portion is used to dock with the flat surface of the lower end of the fastening portion to complete the locking fit.

[0017] Preferably, the one-way lock is a flat structure, and an inclined chamfer is provided at the upper end of the one-way lock corresponding to the flat surface. After the one-way lock is docked with the upper cover, it can be closely abutted against the inner wall of the upper cover through the guidance of the inclined chamfer.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The cooperation of the multiple one-way locks and the buckle portions is configured to sequentially apply downward pressure to the rolling component in the process of the rolling component rolling over the entire protective film, so that in the process of operating the rolling component, the cooperation of the multiple one-way locks and the buckle portions can enable the rolling component to have sufficient and uniform force when rolling to the top of the screen to be filmed to offset the reverse force applied by the screen to be filmed to the rolling component, so that the upper cover will not cause a local change in the downward pressure of the rolling component on the protective film due to deformation, and thus will not cause bubbles to be generated between the protective film and the screen to be filmed when the rolling component is pushed quickly;

[0020] The setting of the cover locking structure will not require the user to strictly operate the rolling component, and the user does not need to press down too much, or in the process of pushing the rolling component, the user can freely adjust the force applied in the longitudinal direction within a large range, thereby improving the flexibility of the film sticking operation and the stability of the film sticking effect;

[0021] The setting of the cover locking structure makes the fit between the base and the upper cover more firm and stable, making the film applicator more durable and ensuring the best film applicator effect in multiple auxiliary film applicators.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0024] Figure 1 This is a schematic diagram of the structure of the film applicator of the utility model adopting a flip structure;

[0025] Figure 2 This is a schematic diagram of the structure of the film applicator of the utility model adopting the upper and lower covering structure;

[0026] Figure 3 This is a schematic diagram of the structure of the utility model in a closed state;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the utility model;

[0028] Figure 5 It is a schematic diagram of the structure of the utility model in the process of positioning the protective film;

[0029] Figure 6 It is a schematic diagram of an exploded structure of the base and cover locking structure in the utility model;

[0030] Figure 7 It is another exploded structural schematic diagram of the base and cover locking structure in the utility model;

[0031] Figure 8 It is a partial structural schematic diagram of the toggle bar and the one-way lock in the utility model.

[0032] The reference numerals and names in the figures are as follows:

[0033] Screen to be pasted with film 1, protective film 2, base 10, positioning groove 11, long groove structure 12, buckle 121, opening 13, toggle opening 14, upper cover 20, film positioning structure 30, upper protective film 31, positioning member 32, rolling component 40, cover locking structure 50, toggle bar 51, toggle key 511, one-way lock 52, connecting part 521, fastening part 522, inclined surface 523, flat surface 524, inclined chamfer 525, buckling part 53, fixing bar 54, slot 541, resisting part 542, reset spring 55. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] See also Figure 1-8 In an embodiment of the utility model, a film applicator capable of applying a constant downward pressure to a rolling component is provided, which is used to assist in attaching a protective film 2 to a screen 1 to be film-applied, and includes a base 10 and an upper cover 20 that overlap each other. A positioning groove 11 for positioning the screen 1 to be film-applied is provided on the base 10, and a film positioning structure 30 for positioning the protective film 2 is also provided on the base 10 or the upper cover 20. When in use, the screen 1 to be film-applied is positioned in the positioning groove 11, and then the protective film 2 is positioned on the base 10 or the upper cover 20 through the film positioning structure 30. The film positioning structure 30 adopts a traditional structure, mainly including an upper protective sheet 31 and positioning members 32 arranged at both ends of the upper protective sheet 31. The positioning member 32 is used to be installed on the base 10 or the upper cover 20, such as Figure 1 and Figure 2As shown in the figure, they are schematic diagrams of the structure in which the upper protection sheet 31 is installed on the base 10 and on the upper cover 20, respectively. The protective film 2 is attached to the upper protection sheet 31. The protective film 2 and the upper protection sheet 31 are generally attached by adsorption or without adhesion, that is, it is ensured that the upper protection sheet 31 and the protective film 2 can be automatically separated after the protective film 2 is attached to the screen 1 to be filmed. The utility model is further slidably connected to the upper cover 20 with a rolling component 40 for rolling and sweeping the entire protective film 2. After the protective film 2 and the screen 1 to be filmed are positioned, the upper cover 20 is covered so that the rolling component 40, the protective film 2 and the screen 1 to be filmed are in corresponding positions. At this time, the rolling component 40 is pushed by the user to roll and sweep the entire protective film 2, so that the protective film 2 on the upper protection sheet 31 is rolled and attached to the screen 1 to be filmed, and the rolling component 40 Generally, the protective film 2 is driven to be attached to the screen 1 to be attached by rolling on the upper protective sheet 31. The roller part of the rolling component 40 generally has a certain elasticity. When the rolling component 40 rolls onto the screen 1 to be attached, it can drive the protective film 2 to be attached to the screen 1 to be attached in a pressed and fitted manner by its own elastic force. On this basis, at least one covering and locking structure 50 is also provided between the upper cover 20 and the base 10. The covering and locking structure 50 includes a toggle bar 51 that is resettably connected to the base 10, a plurality of one-way lock buckles 52 formed on the toggle bar 51, and a buckle portion 53 formed at the lower end of the upper cover 20 and matching the plurality of one-way lock buckles 52. The cooperation between the plurality of one-way lock buckles 52 and the buckle portion 53 is configured to apply downward pressure to the rolling component 40 in sequence during the process of the rolling component 40 rolling across the entire protective film 2.

[0036] Through this arrangement, in the process of operating the rolling component 40, the cooperation of the multiple one-way locks 52 and the buckle portions 53 can enable the rolling component 40 to have sufficient and uniform force to offset the reverse force applied by the screen 1 to be filmed on the rolling component 40 when it rolls to the top of the screen 1 to be filmed, so that the upper cover 20 will not cause local changes in the downward pressing force of the rolling component 40 on the protective film 2 due to deformation, and thus will not cause bubbles to be generated between the protective film 2 and the screen 1 to be filmed when the rolling component 40 is pushed quickly; and through this arrangement, there is no need to strictly require the user to operate the rolling component 40, and the user does not need to perform excessive downward pressing, or in the process of pushing the rolling component 40, the user can arbitrarily adjust the force applied in the longitudinal direction within a larger range, thereby improving the flexibility of the film pasting operation and the stability of the film pasting effect.

[0037] In the technical solution of the utility model, the number of covering and locking structures 50 is set for the upper cover 20 that is only covered and the upper cover 20 that is flipped and connected to the base 10, specifically, as follows Figure 1As shown, the film applicator is a flip structure, and a cover locking structure 50 is provided, and the upper cover 20 and the base 10 are rotatably connected on one side, and the cover locking structure 50 is arranged at a position relative to the other side of the rotational connection between the upper cover 20 and the base 10; Figure 2 As shown, it is a film applicator without a flip structure, and two covering and locking structures 50 are provided. The two covering and locking structures 50 are respectively arranged at two parallel sides between the base 10 and the upper cover 20, and the sliding direction of the rolling component 40 is parallel to the length direction of the covering and locking structures 50.

[0038] See also Figure 4 , Figure 6 and Figure 7 In the embodiment of the utility model, a long slot structure 12 is provided at the bottom of the base 10 at a position corresponding to the installation position of the covering locking structure 50, and the toggle bar 51 is slidably connected in the long slot structure 12, and the covering locking structure 50 also includes a fixing bar 54 fixedly covering the long slot structure 12, so that the toggle bar 51 is restricted in the long slot structure 12, and the base 10 is also provided with an opening 13 along the top of the long slot structure 12 for the buckle portion 53 to extend and move. The structure is simple to set, convenient for mold injection molding, and convenient for assembly of the covering locking structure 50; in order to enable the toggle bar 51 provided in the covering locking structure 50 to have a reset function One end of the toggle bar 51 is connected to a return spring 55, and the return spring 55 is in contact with the inner wall of one end of the long groove structure 12, and the toggle bar 51 is reset by the return spring 55; in addition, the two long walls in the long groove structure 12 are respectively provided with a plurality of buckles 121, and the fixing bar 54 is provided with a slot 541 corresponding to the buckle 121. The fixing bar 54 is fixedly covered on the long groove structure 12 by the cooperation of the slot 541 and the buckle 121. After the assembler forcibly presses the fixing bar 54 to achieve the connection between the slot 541 and the buckle 121, the fixing bar 54 can be fixed and the toggle bar 51 can be assembled to the base 10.

[0039] See also Figure 6-7 In the embodiment of the utility model, in order to allow the user to toggle the toggle bar 51 to achieve the purpose of unlocking; a toggle opening 14 connected to the long slot structure 12 is opened on the side wall of the base 10 corresponding to the covering locking structure 50, and a toggle key 511 extending along the toggle opening 14 to the side of the base 10 is formed on the toggle bar 51; in addition, the toggle opening 14 extends to the lower end of the base 10, and a stopper 542 is formed on the fixing bar 54 to block the lower part of the toggle opening 14. The setting of this structure will facilitate the installation of the toggle bar 51. The toggle bar 51 connected with the reset spring 55 can be directly inserted into the long slot structure 12 from the bottom of the base 10, and the fixing bar 54 can be fixed to complete the assembly operation.

[0040] See also Figure 4 and Figure 8In the embodiment of the utility model, the one-way lock 52 includes a connecting portion 521 formed on the toggle bar 51 and a fastening portion 522 formed on the connecting portion 521. The fastening portion 522 extends laterally along the upper end of the connecting portion 521, and the fastening portion 522 has an inclined surface 523 at the upper end and a flat surface 524 at the lower end. The lower end of the fastening portion 53 can resist the inclined surface 523 at the upper end of the fastening portion 522 to guide the toggle bar 51 to slide, and the upper end of the fastening portion 53 is used for docking and fastening. The flat surface 524 at the lower end of the part 522 is used to complete the locking fit. Through this arrangement, the user does not need to pull the toggle bar 51 when closing the upper cover 20. The user can directly apply a downward pressure to move the buckling part 53 along the inclined surface 523 of the buckling part 522 to guide the toggle bar 51 to automatically overcome the elastic force of the reset spring 55, and then be driven by the elastic force of the reset spring 55 to guide the buckling part 522 from the lower end of the buckling part 53 to the upper end of the buckling part 53 to complete the locking operation.

[0041] See also Figure 8 In the embodiment of the utility model, the one-way lock buckle 52 is a flat structure, and an inclined chamfer 525 is provided at the upper end of the one-way lock buckle 52 corresponding to the flat surface. After the one-way lock buckle 52 is docked with the upper cover 20, it can be closely abutted against the inner wall of the upper cover 20 through the guidance of the inclined chamfer 525.

[0042] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. A film applicator capable of applying a constant downward pressure to a rolling component, used to assist in attaching a protective film to a screen to be film-applied, comprising a base and an upper cover covering each other, a positioning groove for positioning the screen to be film-applied is provided on the base, and a film positioning structure for positioning the protective film is also provided on the base or the upper cover, characterized in that: The upper cover is also slidably connected to a rolling component for rolling and sweeping the entire protective film. At least one covering and locking structure is also arranged between the upper cover and the base. The covering and locking structure includes a toggle bar that is resettably connected to the base, a plurality of one-way locks formed on the toggle bar, and a buckle portion formed at the lower end of the upper cover and matching the plurality of one-way locks. The cooperation between the plurality of one-way locks and the buckle portion is arranged to apply downward pressure to the rolling component in sequence during the process of the rolling component rolling and sweeping the entire protective film.

2. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 1, characterized in that: A covering and locking structure is provided, and one side of the upper cover and the base is rotatably connected, and the covering and locking structure is arranged at a position relative to the other side of the upper cover and the base.

3. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 1, characterized in that: There are two covering and locking structures, which are respectively arranged at two parallel sides between the base and the upper cover, and the sliding direction of the rolling component is parallel to the length direction of the covering and locking structure.

4. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 1, characterized in that: A long groove structure is provided at the bottom of the base at a position corresponding to the installation position of the covering and locking structure. The toggle bar is slidably connected in the long groove structure, and the covering and locking structure also includes a fixing bar fixed to the long groove structure to restrict the toggle bar in the long groove structure. An opening is also provided on the base along the top of the long groove structure for the buckle portion to extend and move.

5. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 4, characterized in that: One end of the toggle bar is connected with a return spring, the return spring is matched with the inner wall of one end of the long slot structure, and the toggle bar is reset by the return spring.

6. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 4, characterized in that: The two long walls in the long slot structure are respectively provided with a plurality of buckles, and the fixing strip is provided with a clamping groove corresponding to the buckles. The fixing strip is fixedly covered on the long slot structure through the cooperation of the clamping groove and the buckle.

7. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 4, characterized in that: A toggle opening connected to the long slot structure is provided on the side wall of the base corresponding to the cover locking structure, and a toggle key extending along the toggle opening to the side of the base is formed on the toggle bar.

8. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 7, characterized in that: The toggle opening extends to penetrate the lower end of the base, and a blocking portion is formed on the fixing strip to block the lower part of the toggle opening.

9. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 1, characterized in that: The one-way lock includes a connecting portion formed on the toggle bar and a fastening portion formed on the connecting portion. The fastening portion extends laterally along the upper end of the connecting portion, and the fastening portion has an inclined surface at the upper end and a flat surface at the lower end. The lower end of the fastening portion can resist the inclined surface at the upper end of the fastening portion to guide the toggle bar to slide, and the upper end of the fastening portion is used to dock with the flat surface at the lower end of the fastening portion to complete the locking fit.

10. The film applicator capable of applying a constant downward pressure to a rolling component according to claim 9, characterized in that: The one-way lock is a flat structure, and an inclined chamfer is provided at the upper end of the one-way lock corresponding to the flat surface. After the one-way lock is docked with the upper cover, it can be closely abutted against the inner wall of the upper cover through the guidance of the inclined chamfer.

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