Film pasting device and film pasting assembly

Abstract

The utility model relates to the technical field of electronic equipment accessories, in particular to a film pasting device and a film pasting assembly, the film pasting device comprises a base, a supporting assembly, a pressing assembly and a lining plate, and the lining plate is movably arranged between the supporting assembly and a bottom plate; a first convex piece and a second convex piece which are matched with each other are respectively arranged on the opposite surfaces of the lining plate and the supporting assembly; when the lining plate is moved, the first protruding piece drives the second protruding piece so that the supporting assembly can move in the direction away from or close to the bottom plate. Therefore, according to the actual thickness of the electronic equipment, the position height of the equipment containing position can be adjusted by moving the lining plate and the first protruding piece to drive the second protruding piece to move, then the position of the supporting assembly is changed to adapt to the electronic equipment of different thicknesses, and the problem that the adaptive thickness size of an existing film pasting device cannot be adjusted in a self-adaptive mode is solved; the universality of the film pasting device is remarkably improved, the trouble that film pasting devices of different specifications need to be replaced for electronic equipment of different thicknesses is avoided, the user experience is improved, and material waste is reduced.

Description

[Technical Field]

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

[0002] Mobile phones, tablets, and other electronic products commonly used in people's daily lives often require screen protectors. However, existing screen protector devices often use fixed cavity or pre-set slot designs, and the thickness of the internal space used to accommodate the electronic device is fixed during manufacturing. As a result, it is impossible to adapt to different thicknesses of electronic devices, and different screen protector devices can only be used for screen protector application. [Utility Model Content]

[0003] To solve the above problems, this utility model provides a film application device and a film application assembly.

[0004] To solve the above-mentioned technical problems, this utility model provides a film-applying device in one embodiment. The film-applying device includes: a base, the base including a bottom plate and a side plate, the bottom plate and the side plate enclosing a receiving space; a support assembly disposed in the receiving space, the side of the support assembly away from the bottom plate having a device receiving position; a pressing assembly movably connected to the side plate, the pressing assembly being at least partially movable on the side of the support assembly away from the bottom plate; a liner movably disposed between the support assembly and the bottom plate; the liner and the opposing surfaces of the support assembly are respectively provided with a first protrusion and a second protrusion that cooperate with each other; by moving the liner, the first protrusion drives the second protrusion to move the support assembly away from or towards the bottom plate.

[0005] Preferably, at least one of the first protrusion and the second protrusion is a wedge. When both the first protrusion and the second protrusion are wedges, the wedge corresponding to the first protrusion abuts against and is complementary to the wedge corresponding to the second protrusion.

[0006] Preferably, the number of inclined blocks is two sets, and the two sets of inclined blocks are arranged one after the other on the liner.

[0007] Preferably, the liner includes a first operating part, the side plate has a first opening, the first operating part passes through the first opening and is partially exposed on the outside of the side plate, and the first operating part is movable relative to the first opening.

[0008] Preferably, there are two sets of the first operating parts, with the two sets of the first operating parts exposed on the outer sides of the side plate respectively.

[0009] Preferably, one of the base plate and the liner is provided with a guide groove, and the other is provided with a guide member that matches the guide groove, wherein the guide groove and the guide member are slidably connected.

[0010] Preferably, the support component is provided with a first stop at at least one end of the film application device in the width direction, and the first stop is movable in the width direction.

[0011] Preferably, the support assembly includes an upper support member and a lower support member, the upper support member and the lower support member are arranged sequentially along the direction close to the liner, the upper support member has a second opening, the first stop includes a second operating part and a driving part, the driving part is disposed between the upper support member and the lower support member, and the second operating part passes through the second opening and is partially exposed on the outside of the upper support member.

[0012] Preferably, there are two first stops, which are respectively disposed on opposite sides of the support assembly. Both drive units are provided with racks, and the lower support member is provided with a gear on the side facing the drive unit. Both racks are meshed with the gears.

[0013] Preferably, the support assembly further includes a limiting member, which includes a limiting part and a third operating part. The limiting part is disposed between the upper support member and the lower support member, and the third operating part passes through the upper support member. One of the driving part and the limiting part is provided with a protrusion, and the other is provided with a groove that matches the protrusion. When the first stop block moves to a preset position, when the third operating part moves upward, the protrusion engages with the groove; when the third operating part moves downward, the protrusion separates from the groove.

[0014] Preferably, one of the driving part and the lower support member is provided with a slider, and the other is provided with a sliding groove that matches the slider, and the slider is slidably connected to the sliding groove.

[0015] Preferably, the support component is provided with a second stop at at least one end of the film application device along the length direction, and the second stop is movable along the length direction.

[0016] Preferably, the film application device further includes a positioning element disposed on the end face of the base facing the pressing component.

[0017] To solve the above-mentioned technical problems, this utility model provides a film application assembly in another embodiment. The film application assembly includes a protective film assembly and the film application device described above, and the protective film assembly is installed on the film application device.

[0018] Compared with the prior art, the film application device and film application assembly of this utility model have the following advantages:

[0019] 1. A film-applying device is provided in one embodiment of this utility model. The film-applying device includes a base, a support assembly, a pressing assembly, and a backing plate. The base includes a bottom plate and a side plate, which enclose a receiving space. The support assembly is disposed in the receiving space, and a device receiving position is provided on the side of the support assembly away from the bottom plate for placing an electronic device to be covered with film. The pressing assembly is movably connected to the side plate, and at least part of the pressing assembly can move on the side of the support assembly away from the bottom plate. The pressing assembly is used to press the protective film onto the surface of the electronic device screen and eliminate air between the protective film and the electronic device screen, reducing the probability of air bubbles and improving the film-applying quality. The backing plate is movably disposed between the support assembly and the bottom plate. The opposing surfaces of the backing plate and the support assembly are respectively provided with a first protrusion and a second protrusion that cooperate with each other. When the backing plate is moved, the first protrusion drives the second protrusion to move the support assembly away from or towards the bottom plate. This allows the position height of the device receiving position to be adjusted by moving the liner plate, which in turn drives the second protrusion to move, thereby changing the position of the support component based on the actual thickness of the electronic device. Different device receiving positions can be adapted to electronic devices of different thicknesses, thus solving the problem that existing film application devices cannot adaptively adjust to different thicknesses. This significantly improves the versatility of the film application device, avoids the hassle of changing to different specifications of film application devices for electronic devices of different thicknesses, enhances the user experience, and reduces material waste.

[0020] 2. In one embodiment of this utility model, at least one of the first protrusion and the second protrusion is a wedge. When both the first and second protrusions are wedges, the inclined surface corresponding to the first protrusion abuts against and complements the inclined surface corresponding to the second protrusion. The inclined angle of the wedge can convert a small driving force into a large abutting force. Using a wedge as at least one of the first and second protrusions makes it easier and smoother for the first protrusion to drive the second protrusion. When both the first and second protrusions are wedges, and the inclined surfaces corresponding to the two wedges abut against and complement each other, the movement of the first protrusion driving the second protrusion is more stable, and the contact surfaces of the first and second protrusions can achieve uniform fit, reducing force concentration and increasing service life.

[0021] 3. In one embodiment of this utility model, there are two sets of inclined blocks, which are arranged one in front of the other on the liner. The design of two sets of inclined blocks arranged one in front of the other allows the pressure to be distributed more evenly to the two sets of inclined blocks, making the relative movement between the liner and the support assembly smoother.

[0022] 4. In one embodiment of this utility model, the liner includes a first operating part, and a first opening is provided on the side plate. The first operating part passes through the first opening and is partially exposed on the outside of the side plate. The first operating part can move relative to the first opening. Since the first operating part is directly exposed on the outside of the side plate, the user can directly apply force from outside the film-applying device to drive the liner to move without contacting the internal structure of the film-applying device, simplifying the adjustment process. By controlling the first operating part, the inclined block can be indirectly driven to slide relative to it, thereby adjusting the height of the support component, which conforms to ergonomic design. The cooperation between the first operating part and the first opening also limits the movement trajectory of the liner, avoiding deviation during the adjustment process and ensuring the accuracy and reliability of the adjustment of the support component along the height direction of the film-applying device.

[0023] 5. In one embodiment of this utility model, there are two sets of first operating parts, with each set of first operating parts exposed on the outer sides of the side plate. The first operating parts exposed on both sides form a symmetrical force-bearing structure, avoiding uneven force on the side plate caused by unilateral operation and enhancing the stability of the liner movement during film application.

[0024] 6. In one embodiment of this utility model, one of the base plate and the liner plate is provided with a guide groove, and the other is provided with a guide member that matches the guide groove. The guide groove and the guide member are slidably connected. The cooperation between the guide groove and the guide member can effectively control the sliding error, ensure that the linear movement of the liner plate relative to the base plate is without deviation, and avoid defects such as bubbles and deviations caused by positional shaking during the film application process.

[0025] 7. In one embodiment of this utility model, the support component has a first stop at at least one end in the width direction of the film-applying device. The first stop is movable in the width direction. The first stop can move along the width direction to abut against the side of electronic devices of different widths, forming a lateral positioning constraint. Combined with the aforementioned height adjustment, it achieves adaptive adjustment of the height and width of the electronic device in three-dimensional space, further solving the problem of limited width adaptability caused by traditional devices relying solely on fixed slots. When the electronic device is placed on the support component, the movable first stop abuts against the side of the electronic device, preventing lateral sliding of the electronic device during film application and improving the stability of the film application operation.

[0026] 8. In one embodiment of this utility model, the support assembly includes an upper support member and a lower support member, which are arranged sequentially along the direction close to the liner. The upper support member has a second opening. The first stop includes a second operating part and a driving part. The driving part is disposed between the upper and lower support members. The second operating part passes through the second opening and is partially exposed on the outside of the upper support member. By placing the driving part of the first stop between the upper and lower support members, and operating only through the exposed second operating part, the compactness of the structure is ensured, and foreign objects caused by the exposed driving part can be prevented from entering, thus avoiding affecting the normal movement of the driving part. The user can control the movement of the first stop in the width direction from the outside by operating the second operating part, thus balancing operational convenience and structural reliability.

[0027] 9. In one embodiment of this utility model, there are two first stops, which are respectively arranged on opposite sides of the support assembly. Both drive units are equipped with racks, and the lower support member has a gear on the side facing the drive unit. Both racks are meshed with the gear. The racks of the two drive units mesh with the same gear. When the second operating part of either stop is operated, the gear rotates, driving the two racks to move synchronously in opposite directions. This ensures that the first stops on both sides of the support assembly move in opposite directions at the same speed, effectively avoiding the asymmetry problem caused by manually adjusting the two stops separately. This ensures uniform clamping of the electronic device, and is especially suitable for center-symmetrical positioning in the width direction. Furthermore, the meshing transmission between the gear and rack has a definite transmission ratio, enabling precise control of the first stop position. Compared to purely manual adjustment, it is more convenient and accurate to achieve the preset width dimension, improving the positioning accuracy of the film-applying device.

[0028] 10. In one embodiment of this utility model, the support component further includes a limiting member, which includes a limiting part and a third operating part. The limiting part is disposed between the upper support member and the lower support member, and the third operating part passes through the upper support member. One of the driving part and the limiting part is provided with a protrusion, and the other is provided with a groove that matches the protrusion. When the first stop block moves to a preset position, when the third operating part moves upward, the protrusion engages with the groove; when the third operating part moves downward, the protrusion separates from the groove. When the first stop block moves to the preset position, the preset position is adapted to an electronic device of a specific width. Pulling the third operating part upward causes the protrusion to engage with the groove, which can lock the position of the first stop block and prevent the first stop block from loosening due to external force during the film application process, thereby improving the positional stability of the first stop block during the film application process. When the user presses the third operating part downward, the protrusion separates from the groove, which can unlock the device and allow for readjustment.

[0029] 11. In one embodiment of this utility model, one of the driving unit and the lower support member is provided with a slider, and the other is provided with a sliding groove that matches the slider. The slider and the sliding groove are slidably connected. The sliding connection between the slider and the sliding groove forms a linear guiding mechanism, which can reduce the frictional resistance when the driving unit moves, making the stop adjustment smoother. At the same time, the limiting effect of the sliding groove on the slider can prevent the driving unit from shifting laterally, ensuring that the adjustment movement in the width direction is carried out along a specific trajectory.

[0030] 12. In one embodiment of the present invention, the support component is provided with a second stop at at least one end of the film-applying device along its length, and the second stop is movable along its length. Providing a movable second stop along the length of the film-applying device allows it to accommodate electronic devices of different lengths, further expanding the applicability of the film-applying device. During film application, the second stop can prevent the electronic device from shifting along its length, effectively improving the film application accuracy.

[0031] 13. In one embodiment of this utility model, the film-applying device further includes a positioning element, which is disposed on the end face of the base facing the pressing component. The positioning element can cooperate with the positioning hole of the external protective film to ensure the precise alignment of the protective film during operation, improve the positional accuracy of the film application, and avoid deviations caused by manual alignment.

[0032] 14. The film-applying assembly in one embodiment of this utility model has the same beneficial effects as the film-applying device described above, and will not be repeated here. [Attached Image Description]

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a three-dimensional structural schematic diagram of the film-applying device provided in the first embodiment of this utility model.

[0035] Figure 2 This is an exploded structural diagram of the film-applying device provided in the first embodiment of this utility model.

[0036] Figure 3 This is a schematic cross-sectional view of the film-applying device provided in the first embodiment of this utility model. Figure 1 .

[0037] Figure 4 This is a schematic cross-sectional view of the film-applying device provided in the first embodiment of this utility model. Figure 2 .

[0038] Figure 5 This is a partial three-dimensional structural diagram of the film-applying device provided in the first embodiment of this utility model. Figure 1 .

[0039] Figure 6 This is a partial three-dimensional structural diagram of the film-applying device provided in the first embodiment of this utility model. Figure 2 .

[0040] Figure 7 This is a three-dimensional structural diagram of the first stop of the film-applying device provided in the first embodiment of this utility model.

[0041] Figure 8 This is a structural block diagram of the film-applying assembly provided in the second embodiment of this utility model.

[0042] Explanation of reference numerals in the attached diagram:

[0043] 1. Film applicator; 10. Base; 11. First opening; 12. Positioning component; 13. Base plate; 14. Accommodating space; 15. Side plate; 20. Liner plate; 21. First protrusion; 22. First operating part; 23. Guide groove; 30. Support assembly; 31. Second protrusion; 32. First stop block; 33. Upper support component; 34. Lower support component; 35. Equipment accommodating position; 36. Limiting component; 37. Second stop block; 40. Pressing assembly; 131. Guide component; 321. Second operating part; 322. Drive unit; 331. Second opening; 341. Slider; 351. Gear; 361. Limiting part; 362. Third operating part; 3221. Rack; 3222. Protrusion; 3223. Slide groove; 3611. Groove;

[0044] 100. Film application assembly; 101. Protective film assembly.

Detailed Implementation Methods

[0045] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0046] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0047] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0048] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0049] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0050] Please combine Figures 1 to 4 The first embodiment of this utility model provides a film-applying device 1, which includes: a base 10, the base 10 including a bottom plate 13 and a side plate 15, the bottom plate 13 and the side plate 15 enclosing a receiving space 14; a support component 30, disposed in the receiving space 14, the side of the support component 30 away from the bottom plate 13 having a device receiving position 35; a pressing component 40, movably connected to the side plate 15, the pressing component 40 being at least partially movable on the side of the support component 30 away from the bottom plate 13; a liner 20, movably disposed between the support component 30 and the bottom plate 13; the opposing surfaces of the liner 20 and the support component 30 are respectively provided with a first protrusion 21 and a second protrusion 31 that cooperate with each other; by moving the liner 20, the first protrusion 21 drives the second protrusion 31 to move the support component 30 in a direction away from or close to the bottom plate 13.

[0051] Understandably, the support assembly 30 has a device receiving position 35 on the side away from the base plate 13, which is used to place the electronic device to be covered with the film. The pressing assembly 40 is movably connected to the side plate 15, and at least part of the pressing assembly 40 can move on the side of the support assembly 30 away from the base plate 13. The pressing assembly 40 is used to press the protective film onto the surface of the electronic device screen and remove air between the protective film and the electronic device screen, reducing the probability of air bubbles and improving the film application quality. The backing plate 20 is movably disposed between the support assembly 30 and the base plate 13. The opposing surfaces of the backing plate 20 and the support assembly 30 are respectively provided with a first protrusion 21 and a second protrusion 31 that cooperate with each other. When the backing plate 20 is moved, the first protrusion 21 drives the second protrusion 31 to move the support assembly 30 away from or towards the base plate 13. This allows the position height of the device receiving position 35 to be adjusted by moving the liner 20 and driving the second protrusion 31 to move according to the actual thickness of the electronic device. Different device receiving positions 35 can be adapted to electronic devices of different thicknesses, thus solving the problem that the existing film application device 1 cannot adaptively adjust to different thicknesses. This significantly improves the versatility of the film application device 1, avoids the trouble of having to replace different specifications of film application devices 1 for electronic devices of different thicknesses, improves the user experience, and reduces material waste. Figure 3 It is shown that when the liner 20 moves, the first protrusion 21 drives the second protrusion 31 to move, so that the support assembly 30 moves to a position close to the base plate 13; Figure 4 It is shown that when the liner 20 moves, the first protrusion 21 drives the second protrusion 31 to move, causing the support assembly 30 to move away from the base plate 13.

[0052] It should be noted that the moving direction of the liner 20 can be along the length of the film applicator 1 or along the width of the film applicator 1, and other moving directions are not limited here.

[0053] Please combine Figures 2 to 4 Furthermore, at least one of the first protrusion 21 and the second protrusion 31 is a wedge. When both the first protrusion 21 and the second protrusion 31 are wedges, the inclined surface corresponding to the first protrusion 21 abuts against and complements the inclined surface corresponding to the second protrusion 31.

[0054] Understandably, the angle of the inclined surface of the wedge can convert a small driving force into a large abutting force. Using a wedge in at least one of the first protrusion 21 and the second protrusion 31 makes the movement of the first protrusion 21 towards the second protrusion 31 more effortless and smoother. When both the first protrusion 21 and the second protrusion 31 are wedges, and the corresponding inclined surfaces of the two wedges abut and complement each other, the movement of the first protrusion 21 towards the second protrusion 31 is more stable. Furthermore, the complementary inclined surfaces allow the contact surfaces of the first protrusion 21 and the second protrusion 31 to achieve uniform contact, reducing force concentration and increasing service life.

[0055] Please combine Figure 1 and Figure 2 Furthermore, there are two sets of inclined blocks, which are arranged one after the other on the liner plate 20.

[0056] Understandably, the design of the two sets of inclined blocks at the front and rear allows the pressure to be distributed more evenly to the two sets of inclined blocks, making the relative movement of the liner 20 and the support assembly 30 smoother.

[0057] Please combine Figure 1 and Figure 2 Furthermore, the liner 20 includes a first operating part 22, and the side plate 15 has a first opening 11. The first operating part 22 passes through the first opening 11 and is partially exposed on the outside of the side plate 15. The first operating part 22 can move relative to the first opening 11.

[0058] Understandably, since the first operating part 22 is directly exposed on the outside of the side plate 15, the user can directly apply force from the outside of the film application device 1 to drive the liner 20 to move without contacting the internal structure of the film application device 1, thus simplifying the adjustment process. By controlling the first operating part 22, the inclined block can be indirectly driven to slide relative to each other, thereby adjusting the height of the support assembly 30, which conforms to ergonomic design. The cooperation between the first operating part 22 and the first opening 11 also limits the movement trajectory of the liner 20, avoiding deviation during the adjustment process and ensuring the accuracy and reliability of the adjustment of the support assembly 30 along the height direction of the film application device 1.

[0059] Please continue to combine Figure 1 and Figure 2 Furthermore, there are two sets of first operating parts 22, with the two sets of first operating parts 22 exposed on the outer sides of the side plate 15 respectively.

[0060] Understandably, the first operating part 22 exposed on both sides forms a symmetrical force-bearing structure, avoiding uneven force on the side plate 15 caused by unilateral operation, and enhancing the stability of the liner 20 movement during film application.

[0061] Please see Figure 2Furthermore, one of the base plate 13 and the liner plate 20 is provided with a guide groove 23, and the other is provided with a guide member 131 that matches the guide groove 23. The guide groove 23 and the guide member 131 are slidably connected.

[0062] Understandably, the cooperation between the guide groove 23 and the guide member 131 can effectively control the sliding error, ensure that the linear movement of the liner 20 relative to the base plate 13 is without deviation, and avoid defects such as bubbles and deviations caused by positional shaking during the film application process.

[0063] Please combine Figure 1 and Figure 2 Furthermore, the support component 30 is provided with a first stop 32 at at least one end in the width direction of the film application device 1, and the first stop 32 is movable in the width direction.

[0064] Understandably, the first stop 32 can move along the width direction to abut against the sides of electronic devices of different widths, forming a lateral positioning constraint. Combined with the aforementioned height adjustment, it enables adaptive adjustment of the height and width of the electronic device in three-dimensional space, further solving the problem of limited width adaptability caused by traditional devices relying solely on fixed slots. When the electronic device is placed on the support assembly 30, the movable first stop 32 abuts against the side of the electronic device, preventing lateral sliding during the film application process and improving the stability of the film application operation.

[0065] Optionally, the first stop 32 can be provided at one end of the width direction of the film application device 1, or the first stop 32 can be provided at both ends of the width direction of the film application device 1.

[0066] Please combine Figure 1 , Figure 2 and Figure 5 Furthermore, the support assembly 30 includes an upper support member 33 and a lower support member 34, which are arranged sequentially along the direction close to the liner plate 20. The upper support member 33 has a second opening 331. The first stop block 32 includes a second operating part 321 and a driving part 322. The driving part 322 is disposed between the upper support member 33 and the lower support member 34. The second operating part 321 passes through the second opening 331 and is partially exposed on the outside of the upper support member 33.

[0067] Understandably, by placing the drive unit 322 of the first stop 32 between the upper support member 33 and the lower support member 34, and operating it only through the exposed second operating unit 321, both structural compactness and the prevention of foreign objects from entering due to the exposed drive unit 322 are achieved, thus avoiding interference with the normal movement of the drive unit 322. The user can control the movement of the first stop 32 in the width direction from the outside by operating the second operating unit 321, thus balancing operational convenience and structural reliability.

[0068] Please continue to combine Figure 1 , Figure 2 and Figure 5 Furthermore, there are two first stops 32, which are respectively arranged on opposite sides of the support assembly 30. Both drive parts 322 are provided with racks 3221, and the lower support 34 is provided with a gear 351 on the side facing the drive part 322. Both racks 3221 are meshed with the gear 351.

[0069] Understandably, the racks 3221 of the two drive units 322 mesh with the same gear 351. When the second operation unit 321 of either stop is operated, the gear 351 rotates to drive the two racks 3221 to move in opposite directions synchronously. This ensures that the first stops 32 on both sides of the support assembly 30 move in opposite directions at the same speed, effectively avoiding the asymmetry problem caused by manually adjusting the stops on both sides separately. This ensures uniform clamping of the electronic device, and is especially suitable for center-symmetrical positioning in the width direction. Furthermore, the meshing transmission between the gear 351 and the rack 3221 has a definite transmission ratio, which can achieve precise control of the position of the first stop 32. Compared with purely manual adjustment, it is more convenient and accurate to achieve the preset width size, improving the positioning accuracy of the film application device 1.

[0070] Please combine Figure 1 , Figure 5 and Figure 6 Furthermore, the support assembly 30 also includes a limiting member 36, which includes a limiting part 361 and a third operating part 362. The limiting part 361 is disposed between the upper support member 33 and the lower support member 34, and the third operating part 362 passes through the upper support member 33. One of the driving part 322 and the limiting part 361 is provided with a protrusion 3222, and the other is provided with a groove 3611 that matches the protrusion 3222. When the first stop block 32 moves to the preset position, when the third operating part 362 moves upward, the protrusion 3222 engages with the groove 3611; when the third operating part 362 moves downward, the protrusion 3222 separates from the groove 3611.

[0071] Understandably, when the first stop 32 moves to a preset position, which is adapted to an electronic device of a specific width, pulling the third operating part 362 upward causes the protrusion 3222 to engage with the groove 3611, thereby locking the position of the first stop 32. Figure 5 This demonstrates that the engagement of the protrusion 3222 and the groove 3611 prevents the first stop 32 from loosening due to external force during the film application process, thus improving the positional stability of the first stop 32. When the user presses down on the third operating part 362, the protrusion 3222 separates from the groove 3611. Figure 6 This state demonstrates that the locking mechanism can be released and readjusted once the protrusion 3222 separates from the groove 3611.

[0072] Please combine Figure 2 , Figure 5 and Figure 7 Furthermore, one of the drive unit 322 and the lower support member 34 is provided with a slider 341, and the other is provided with a groove 3223 that matches the slider 341, and the slider 341 is slidably connected to the groove 3223.

[0073] Understandably, the sliding connection between slider 341 and groove 3223 forms a linear guiding mechanism, which reduces the frictional resistance during the movement of drive unit 322, making the stop adjustment smoother. At the same time, the limiting effect of groove 3223 on slider 341 can prevent drive unit 322 from lateral displacement, ensuring that the adjustment movement in the width direction is carried out along a specific trajectory.

[0074] Optionally, in one specific embodiment, the drive unit 322 is provided with a slider 341, and the lower support member 34 is provided with a groove 3223 that matches the slider 341; in another specific embodiment, the lower support member 34 is provided with a slider 341, and the drive unit 322 is provided with a groove 3223 that matches the slider 341.

[0075] Please combine Figure 1 and Figure 2 Furthermore, the support component 30 is provided with a second stop 37 at at least one end of the film application device 1 in the length direction, and the second stop 37 is movable in the length direction.

[0076] Understandably, the movable second stop 37 is provided in the length direction of the film application device 1, which can adapt to electronic devices of different lengths in the length direction of the film application device 1, further expanding the applicability of the film application device 1. When applying the film, the second stop 37 can prevent the electronic device from shifting in the length direction, effectively improving the film application accuracy.

[0077] Specifically, as an optional implementation, when applying a film to an electronic device using the film-applying device 1, the moving backing plate 20 causes the first protrusion 21 to drive the second protrusion 31 to move. Since the second protrusion 31 is mounted on the support assembly 30, it drives the support assembly 30 to move away from or towards the base plate 13, ultimately adjusting it to a position that matches the thickness of the electronic device. The position of the first stop 32 is adjusted so that the first stop 32 can clamp the electronic device in the width direction. The position of the second stop 37 is adjusted so that the second stop 37 can clamp the electronic device in the length direction. Ultimately, the film-applying device 1 is adapted to the size of the electronic device in the length, width, and height dimensions. The film-applying device 1 can adaptively adjust to electronic devices of different sizes, thus improving the applicability of the film-applying device 1.

[0078] Please see Figure 1Furthermore, the film application device 1 also includes a positioning member 12, which is disposed on the end face of the base 10 facing the pressing assembly 40.

[0079] Understandably, the positioning element 12 is disposed on the end face of the base 10 facing the pressing component 40, and can cooperate with the positioning hole of the external protective film to ensure the precise alignment of the protective film during operation of the film application device 1, improve the positional accuracy of the film application, and avoid deviations caused by manual alignment.

[0080] Please see Figure 8 The second embodiment of this utility model provides a film application assembly 100, which includes a protective film assembly 101 and a film application device 1 of the first embodiment of this utility model. The protective film assembly 101 is installed on the film application device 1.

[0081] Understandably, the film application assembly 100 has the same beneficial effects as the film application device 1 in the first embodiment of this utility model, and will not be described again here.

[0082] Compared with the prior art, the film application device and film application assembly of this utility model have the following advantages:

[0083] 1. A film-applying device is provided in one embodiment of this utility model. The film-applying device includes a base, a support assembly, a pressing assembly, and a backing plate. The base includes a bottom plate and a side plate, which enclose a receiving space. The support assembly is disposed in the receiving space, and a device receiving position is provided on the side of the support assembly away from the bottom plate for placing an electronic device to be covered with film. The pressing assembly is movably connected to the side plate, and at least part of the pressing assembly can move on the side of the support assembly away from the bottom plate. The pressing assembly is used to press the protective film onto the surface of the electronic device screen and eliminate air between the protective film and the electronic device screen, reducing the probability of air bubbles and improving the film-applying quality. The backing plate is movably disposed between the support assembly and the bottom plate. The opposing surfaces of the backing plate and the support assembly are respectively provided with a first protrusion and a second protrusion that cooperate with each other. When the backing plate is moved, the first protrusion drives the second protrusion to move the support assembly away from or towards the bottom plate. This allows the position height of the device receiving position to be adjusted by moving the liner plate, which in turn drives the second protrusion to move, thereby changing the position of the support component based on the actual thickness of the electronic device. Different device receiving positions can be adapted to electronic devices of different thicknesses, thus solving the problem that existing film application devices cannot adaptively adjust to different thicknesses. This significantly improves the versatility of the film application device, avoids the hassle of changing to different specifications of film application devices for electronic devices of different thicknesses, enhances the user experience, and reduces material waste.

[0084] 2. In one embodiment of this utility model, at least one of the first protrusion and the second protrusion is a wedge. When both the first and second protrusions are wedges, the inclined surface corresponding to the first protrusion abuts against and complements the inclined surface corresponding to the second protrusion. The inclined angle of the wedge can convert a small driving force into a large abutting force. Using a wedge as at least one of the first and second protrusions makes it easier and smoother for the first protrusion to drive the second protrusion. When both the first and second protrusions are wedges, and the inclined surfaces corresponding to the two wedges abut against and complement each other, the movement of the first protrusion driving the second protrusion is more stable, and the contact surfaces of the first and second protrusions can achieve uniform fit, reducing force concentration and increasing service life.

[0085] 3. In one embodiment of this utility model, there are two sets of inclined blocks, which are arranged one in front of the other on the liner. The design of two sets of inclined blocks arranged one in front of the other allows the pressure to be distributed more evenly to the two sets of inclined blocks, making the relative movement between the liner and the support assembly smoother.

[0086] 4. In one embodiment of this utility model, the liner includes a first operating part, and a first opening is provided on the side plate. The first operating part passes through the first opening and is partially exposed on the outside of the side plate. The first operating part can move relative to the first opening. Since the first operating part is directly exposed on the outside of the side plate, the user can directly apply force from outside the film-applying device to drive the liner to move without contacting the internal structure of the film-applying device, simplifying the adjustment process. By controlling the first operating part, the inclined block can be indirectly driven to slide relative to it, thereby adjusting the height of the support component, which conforms to ergonomic design. The cooperation between the first operating part and the first opening also limits the movement trajectory of the liner, avoiding deviation during the adjustment process and ensuring the accuracy and reliability of the adjustment of the support component along the height direction of the film-applying device.

[0087] 5. In one embodiment of this utility model, there are two sets of first operating parts, with each set of first operating parts exposed on the outer sides of the side plate. The first operating parts exposed on both sides form a symmetrical force-bearing structure, avoiding uneven force on the side plate caused by unilateral operation and enhancing the stability of the liner movement during film application.

[0088] 6. In one embodiment of this utility model, one of the base plate and the liner plate is provided with a guide groove, and the other is provided with a guide member that matches the guide groove. The guide groove and the guide member are slidably connected. The cooperation between the guide groove and the guide member can effectively control the sliding error, ensure that the linear movement of the liner plate relative to the base plate is without deviation, and avoid defects such as bubbles and deviations caused by positional shaking during the film application process.

[0089] 7. In one embodiment of this utility model, the support component has a first stop at at least one end in the width direction of the film-applying device. The first stop is movable in the width direction. The first stop can move along the width direction to abut against the side of electronic devices of different widths, forming a lateral positioning constraint. Combined with the aforementioned height adjustment, it achieves adaptive adjustment of the height and width of the electronic device in three-dimensional space, further solving the problem of limited width adaptability caused by traditional devices relying solely on fixed slots. When the electronic device is placed on the support component, the movable first stop abuts against the side of the electronic device, preventing lateral sliding of the electronic device during film application and improving the stability of the film application operation.

[0090] 8. In one embodiment of this utility model, the support assembly includes an upper support member and a lower support member, which are arranged sequentially along the direction close to the liner. The upper support member has a second opening. The first stop includes a second operating part and a driving part. The driving part is disposed between the upper and lower support members. The second operating part passes through the second opening and is partially exposed on the outside of the upper support member. By placing the driving part of the first stop between the upper and lower support members, and operating only through the exposed second operating part, the compactness of the structure is ensured, and foreign objects caused by the exposed driving part can be prevented from entering, thus avoiding affecting the normal movement of the driving part. The user can control the movement of the first stop in the width direction from the outside by operating the second operating part, thus balancing operational convenience and structural reliability.

[0091] 9. In one embodiment of this utility model, there are two first stops, which are respectively arranged on opposite sides of the support assembly. Both drive units are equipped with racks, and the lower support member has a gear on the side facing the drive unit. Both racks are meshed with the gear. The racks of the two drive units mesh with the same gear. When the second operating part of either stop is operated, the gear rotates, driving the two racks to move synchronously in opposite directions. This ensures that the first stops on both sides of the support assembly move in opposite directions at the same speed, effectively avoiding the asymmetry problem caused by manually adjusting the two stops separately. This ensures uniform clamping of the electronic device, and is especially suitable for center-symmetrical positioning in the width direction. Furthermore, the meshing transmission between the gear and rack has a definite transmission ratio, enabling precise control of the first stop position. Compared to purely manual adjustment, it is more convenient and accurate to achieve the preset width dimension, improving the positioning accuracy of the film-applying device.

[0092] 10. In one embodiment of this utility model, the support component further includes a limiting member, which includes a limiting part and a third operating part. The limiting part is disposed between the upper support member and the lower support member, and the third operating part passes through the upper support member. One of the driving part and the limiting part is provided with a protrusion, and the other is provided with a groove that matches the protrusion. When the first stop block moves to a preset position, when the third operating part moves upward, the protrusion engages with the groove; when the third operating part moves downward, the protrusion separates from the groove. When the first stop block moves to the preset position, the preset position is adapted to an electronic device of a specific width. Pulling the third operating part upward causes the protrusion to engage with the groove, which can lock the position of the first stop block and prevent the first stop block from loosening due to external force during the film application process, thereby improving the positional stability of the first stop block during the film application process. When the user presses the third operating part downward, the protrusion separates from the groove, which can unlock the device and allow for readjustment.

[0093] 11. In one embodiment of this utility model, one of the driving unit and the lower support member is provided with a slider, and the other is provided with a sliding groove that matches the slider. The slider and the sliding groove are slidably connected. The sliding connection between the slider and the sliding groove forms a linear guiding mechanism, which can reduce the frictional resistance when the driving unit moves, making the stop adjustment smoother. At the same time, the limiting effect of the sliding groove on the slider can prevent the driving unit from shifting laterally, ensuring that the adjustment movement in the width direction is carried out along a specific trajectory.

[0094] 12. In one embodiment of the present invention, the support component is provided with a second stop at at least one end of the film-applying device along its length, and the second stop is movable along its length. Providing a movable second stop along the length of the film-applying device allows it to accommodate electronic devices of different lengths, further expanding the applicability of the film-applying device. During film application, the second stop can prevent the electronic device from shifting along its length, effectively improving the film application accuracy.

[0095] 13. In one embodiment of this utility model, the film-applying device further includes a positioning element, which is disposed on the end face of the base facing the pressing component. The positioning element can cooperate with the positioning hole of the external protective film to ensure the precise alignment of the protective film during operation, improve the positional accuracy of the film application, and avoid deviations caused by manual alignment.

[0096] 14. The film-applying assembly in one embodiment of this utility model has the same beneficial effects as the film-applying device described above, and will not be repeated here.

[0097] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A film application device, characterized in that: The film application device includes: The base includes a bottom plate and side plates, which enclose a receiving space. A support assembly is disposed in the receiving space, and the side of the support assembly away from the base plate has a device receiving position; The pressing component is movably connected to the side plate, and the pressing component is at least partially movable on the side of the support component away from the base plate; A liner is movably disposed between the support assembly and the base plate; the opposing surfaces of the liner and the support assembly are respectively provided with a first protrusion and a second protrusion that cooperate with each other; by moving the liner, the first protrusion drives the second protrusion to move the support assembly away from or towards the base plate.

2. The film-applying device as described in claim 1, characterized in that: At least one of the first protrusion and the second protrusion is a wedge. When both the first protrusion and the second protrusion are wedges, the wedge corresponding to the first protrusion abuts against and is complementary to the wedge corresponding to the second protrusion.

3. The film-applying device as described in claim 2, characterized in that: The number of inclined blocks is two sets, and the two sets of inclined blocks are arranged one after the other on the liner.

4. The film-applying device as described in claim 1, characterized in that: The liner includes a first operating part, the side plate has a first opening, the first operating part passes through the first opening and is partially exposed on the outside of the side plate, and the first operating part is movable relative to the first opening.

5. The film-applying device as described in claim 4, characterized in that: The number of the first operating parts is two sets, and the two sets of the first operating parts are exposed on the outer sides of the side plate respectively.

6. The film-applying device as described in claim 1, characterized in that: One of the base plate and the liner plate is provided with a guide groove, and the other is provided with a guide member that matches the guide groove. The guide groove and the guide member are slidably connected.

7. The film-applying device as described in claim 1, characterized in that: The support component has a first stop at at least one end of the film application device in the width direction, and the first stop is movable in the width direction.

8. The film-applying device as described in claim 7, characterized in that: The support assembly includes an upper support member and a lower support member, which are arranged sequentially along the direction close to the liner. The upper support member has a second opening. The first stop includes a second operating part and a driving part. The driving part is disposed between the upper support member and the lower support member. The second operating part passes through the second opening and is partially exposed on the outside of the upper support member.

9. The film-applying device as described in claim 8, characterized in that: There are two first stops, which are respectively arranged on opposite sides of the support assembly. Both drive units are provided with racks, and the lower support member is provided with a gear on the side facing the drive unit. Both racks are meshed with the gears.

10. The film-applying device as described in claim 8, characterized in that: The support assembly further includes a limiting member, which includes a limiting part and a third operating part. The limiting part is disposed between the upper support member and the lower support member, and the third operating part passes through the upper support member. One of the driving part and the limiting part is provided with a protrusion, and the other is provided with a groove that matches the protrusion. When the first stop block moves to a preset position, when the third operating part moves upward, the protrusion engages with the groove; when the third operating part moves downward, the protrusion separates from the groove.

11. The film-applying device as described in claim 8, characterized in that: One of the driving unit and the lower support member is provided with a slider, and the other is provided with a sliding groove that matches the slider, and the slider is slidably connected to the sliding groove.

12. The film-applying device as claimed in claim 1, characterized in that: The support component has a second stop at at least one end of the film application device along its length, and the second stop is movable along the length.

13. The film-applying device as claimed in claim 1, characterized in that: The film application device further includes a positioning element disposed on the end face of the base facing the pressing component.

14. A film-applied assembly, characterized in that: The film application assembly includes a protective film assembly and a film application device as described in any one of claims 1-13, wherein the protective film assembly is mounted on the film application device.

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