High-precision tempered film auxiliary laminator
By designing a high-precision tempered glass film auxiliary applicator, and utilizing air pressure regulation and frame opening and closing linkage, the problem of difficulty in achieving full-size tempered glass film application through manual operation in existing technologies has been solved, achieving a highly efficient film application effect without bubbles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN WOZHIYUAN TECHNOLOGY CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-06-23
AI Technical Summary
Existing screen protector applicators require manual operation of the tempered glass screen protector, making it difficult to apply the entire screen protector to the phone screen simultaneously. This can easily lead to air bubbles and affect the quality of the application.
A high-precision tempered glass film auxiliary applicator was designed, comprising an applicator shell, a smooth isolation frame, an airtight baffle, and an air plug rod. Through air pressure adjustment and frame opening and closing linkage, the tempered glass film can be automatically aligned and applied.
It reduces the precision error of manual operation, and can quickly and stably apply the entire tempered glass screen protector to the mobile phone screen without bubbles, thus improving the quality of screen protector application.
Smart Images

Figure CN224393079U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of film applicator technology, and in particular to a high-precision tempered glass film auxiliary applicator. Background Technology
[0002] Tempered glass screen protectors, as a type of mobile phone protective film, possess excellent wear resistance and are very hard, thus providing excellent protection for the phone screen. Tempered glass is actually a type of prestressed glass. To improve the glass's strength, chemical or physical methods are typically used to create compressive stress on the glass surface. When the glass is subjected to external forces, this surface stress is first offset, thereby improving its load-bearing capacity and enhancing its resistance to wind pressure, temperature changes, and impacts. As a mobile phone accessory, tempered glass screen protectors, while protecting the screen, can also be damaged. Damaged tempered glass screen protectors need to be replaced promptly. Applying tempered glass screen protectors requires certain skills; ordinary people often struggle to align them correctly, leading to misalignment and affecting the phone's appearance. With technological advancements, screen protector application tools have been developed and are widely used.
[0003] However, existing screen protector applicators require manual operation of the tempered glass screen protector, making it inconvenient to apply the entire screen protector to the phone screen at the same time. Due to the time difference, air bubbles are prone to appear, affecting the quality of the application. Utility Model Content
[0004] Therefore, the purpose of this utility model is to propose a high-precision tempered glass film auxiliary applicator to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.
[0005] To achieve the above objectives, one embodiment of this utility model provides a high-precision tempered glass screen protector auxiliary applicator, including an applicator shell for accommodating the tempered glass screen protector. A sealing ring is provided inside the bottom of the applicator shell to fit the side of the mobile phone. Above the sealing ring is a smooth isolation frame that stores the torn tempered glass screen protector and can be opened and closed. When the size of the applicator shell is set to fit the corresponding mobile phone, the smooth isolation frame is located 15mm above the surface of the mobile phone screen. The size of the smooth isolation frame is designed to correspond to the screen size of the mobile phone to be covered, so that when the smooth isolation frame is closed, it corresponds to the size of the tempered glass screen protector to be covered, fully supporting the tempered glass screen protector, and its bottom surface is located 10mm inside the tempered glass screen protector. The distance between the side of the smooth isolation frame and the movable inner wall inside the film-covering shell is 10mm. When applying the film, after the smooth isolation frame is opened, it expands 10mm to the left and right and fits against the inner wall of the film-covering shell. Under the action of gravity, the tempered glass film spreads onto the mobile phone screen along the groove of the smooth isolation frame. One end of the smooth isolation frame is provided with a film-removing blade to separate the release film at the bottom of the tempered glass film. One side of the film-removing blade is provided with an airtight baffle to seal the smooth isolation frame. The bottom of the smooth isolation frame is provided with an air hole to discharge air from inside the film-covering shell. One end of the air hole is connected to an adjustment air chamber located inside the film-covering shell. The adjustment air chamber is provided with an air plug rod for pulling and adjusting.
[0006] Preferably, as described in any of the above embodiments, a transparent observation plate is provided at the top of the film shell, and a support sliding groove is provided inside the film shell to guide the smooth isolation frame. The support sliding groove is located below the transparent observation plate, and the sealing ring is located below the air hole.
[0007] The above technical solution is adopted: the transparent observation plate (acrylic material) at the top of the film cover (ABS material) makes it easy to observe the alignment status of the tempered glass film with the mobile phone screen. The support sliding groove below it provides guidance for the smooth isolation frame, ensuring that the left and right edges open and close in a straight line. The sealing ring (silicone rubber material) is located below the air hole and fits with the side of the mobile phone to form a closed cavity, providing a sealing basis for subsequent air pressure adjustment and avoiding air leakage during air extraction, which would affect the film application effect.
[0008] Preferably, in any of the above embodiments, the smooth isolation frame includes a left frame, a right frame, and a connecting spring for supporting the tempered glass film. The left frame and the right frame are both movably connected to the inside of the film shell. A connecting spring is fixedly installed at one end of the left frame, and the end of the connecting spring away from the left frame is fixedly installed to the right frame. A connecting sleeve is provided at one end of the left frame and the right frame, and the connecting sleeve is fitted around the connecting spring. A guide rod is fixedly installed inside the connecting spring and inserted into the inside of the right frame.
[0009] The above technical solution employs the following: the left and right bezels (made of polyoxymethylene) are movably connected to the screen protector housing via a support sliding groove. The connecting springs (made of piano wire) are normally in a pre-tensioned state, allowing the bezels to close and form a support surface that matches the tempered glass screen protector. The connecting sleeves (made of ABS) of the left and right bezels are fitted onto the outside of the connecting springs, and, in conjunction with internal guide rods, restrict the bezels to slide only axially, preventing skewing during opening and closing. When an external force pushes the bezels, the connecting springs stretch, the bezels unfold to both sides, releasing the tempered glass screen protector so it naturally falls and adheres to the screen.
[0010] Preferably, in any of the above solutions, the film removal blade is fixedly installed at one end of the left and right side frames, the film removal blade is located inside the film-coating shell, and the cutting edge of the film removal blade is flush with the end face of the film-coating shell.
[0011] The above technical solution is adopted: the film removal blade (made of hard alloy) is fixed to the front end of the left and right frames, and the blade edge is flush with the end face of the film shell. When the tempered glass film is placed on the smooth isolation frame, the edge of the release film rests on the film removal blade. During the opening and closing of the frame, the blade edge contacts the release film and generates shearing force to separate the release film from the tempered glass film, avoiding the displacement of the tempered glass film caused by manual tearing.
[0012] Preferably, in any of the above embodiments, the airtight baffle includes a pull-out return spring and a sealing movable plate made of elastic material. The return spring is fixedly installed inside the film shell, and the top of the return spring is fixedly installed with the sealing movable plate that moves inside the film shell. The sealing movable plate is located above the smooth isolation frame.
[0013] The above technical solution is adopted: the return spring (made of stainless steel) pushes the sealing movable plate (made of nitrile rubber) to fit tightly against the top of the smooth isolation frame, sealing the gap between the frame and the film shell, ensuring the airtightness of the cavity. When the smooth isolation frame is opened and closed, the sealing movable plate moves with the frame and generates elastic deformation. The return spring compensates for the pressure in real time, maintains the sealing effect, and provides a stable sealing environment for air pressure regulation.
[0014] Preferably, in any of the above embodiments, the air holes and the adjusting air chamber are both located at both ends of the film-coating shell, and the air holes are located below the supporting sliding groove.
[0015] The above technical solution is adopted: the air hole is located below the support sliding groove, connecting the internal cavity of the film shell with the regulating air cavity to form an air pressure transmission channel. When the air plug rod is operated, the air pressure change in the regulating air cavity is transmitted to the sealing cavity through the air hole to realize the internal air pressure regulation. The air pressure difference is used to assist the tempered film to be quickly bonded and reduce the generation of air bubbles.
[0016] Preferably, in any of the above embodiments, the air plug rod includes a sealing plug for sealing the regulating air chamber and a movable pull plate for alignment and pulling. The sealing plug is movably connected to the inside of the regulating air chamber, and the movable pull plate is fixedly installed at one end of the sealing plug. The sealing plug is located on one side of the air hole.
[0017] The above technical solution involves a sealing plug (made of nitrile rubber, adapted to the size of the adjustable air chamber) sliding within the air chamber. The volume of the air chamber changes when pulled by a movable pull plate (made of ABS material with anti-slip texture). When the movable pull plate is pulled, the sealing plug moves outward, reducing the air pressure in the adjustable air chamber and the internal cavity of the film-covering shell (creating negative pressure). External atmospheric pressure then pushes the tempered glass film tightly against the screen. When the pull plate is released, the sealing plug resets under atmospheric pressure, and the air pressure returns to normal. The airtightness of the sealing plug ensures accurate air pressure adjustment, achieving bubble-free bonding of the tempered glass film.
[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0019] 1. Inside the screen protector case for the phone, there is a smooth, unfoldable separation frame that supports the torn tempered glass screen protector. This allows the tempered glass screen protector to float on the corresponding phone screen surface and align with the screen before application. When application is needed, the smooth separation frame is opened, allowing the suspended tempered glass screen protector to be laid flat on the phone screen under gravity, thus completing the application. This reduces the precision errors caused by manual operation of the tempered glass screen protector and allows the entire tempered glass screen protector to be applied to the phone screen at the same time, which helps to improve the quality of the application.
[0020] 2. A sealing ring is set inside the screen protector case to seal the phone screen, so that the phone screen to be covered is in a sealed space. The air plug lever can be controlled to extract the gas in the sealed space by adjusting the air chamber and air hole, reducing the air pressure inside the sealed space, so that the tempered glass screen protector can be applied to the phone screen more quickly and stably.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is a schematic diagram of the structure according to an embodiment of the present utility model;
[0024] Figure 2 This is an exploded structural diagram according to an embodiment of the present utility model;
[0025] Figure 3This is a schematic diagram of the structure of the airtight baffle according to an embodiment of the present utility model;
[0026] Figure 4 This is a side sectional view of the film-coated shell according to an embodiment of the present invention;
[0027] Figure 5 This is a cross-sectional structural diagram of the film-coated shell according to an embodiment of the present invention;
[0028] Figure 6 According to the embodiments of this utility model Figure 5 Enlarged structural diagram at point A;
[0029] Figure 7 This is a cross-sectional fracture structure diagram of the smooth isolation frame according to an embodiment of the present invention;
[0030] The components are: 1-film shell, 2-sealing ring, 3-smooth isolation frame, 31-left frame, 32-right frame, 33-connecting spring, 4-film removal blade, 5-airtight baffle, 51-reset spring, 52-sealing movable plate, 6-air hole, 7-adjusting air chamber, 8-air plug rod, 81-sealing plug, 82-movable pull plate. Detailed Implementation
[0031] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.
[0032] like Figure 1-7As shown in the figure, a high-precision tempered glass screen protector auxiliary applicator according to an embodiment of the present invention includes an applicator shell 1 for accommodating the tempered glass screen protector. A sealing ring 2 is provided inside the bottom of the applicator shell 1 to fit the side of the mobile phone. Above the sealing ring 2 is a smooth isolation frame 3 for storing the torn tempered glass screen protector and for adjusting its opening and closing. When the size of the applicator shell 1 is set to fit the corresponding mobile phone, the smooth isolation frame 3 is located 15mm above the surface of the mobile phone screen. The size of the smooth isolation frame 3 is designed to correspond to the size of the mobile phone screen to be covered, so that when the smooth isolation frame 3 is closed, it corresponds to the size of the tempered glass screen protector to be covered, fully supporting the tempered glass screen protector, and its bottom surface is located 10mm inside the tempered glass screen protector. The distance between the side of the screen protector and the movable inner wall of the screen protector 1 is 10mm. When applying the screen protector, after the smooth isolation frame 3 is opened, the smooth isolation frame 3 unfolds 10mm to the left and right and fits into the inner wall of the screen protector 1. Under the action of gravity, the tempered glass screen protector spreads onto the mobile phone screen along the groove of the smooth isolation frame 3. One end of the smooth isolation frame 3 is provided with a film removal blade 4 to separate the release film at the bottom of the tempered glass screen protector. One side of the film removal blade 4 is provided with an airtight baffle 5 to seal the smooth isolation frame 3. The bottom of the smooth isolation frame 3 is provided with an air hole 6 to exhaust the air inside the screen protector 1. One end of the air hole 6 is connected to an adjustment air chamber 7 located inside the screen protector 1. The adjustment air chamber 7 is provided with an air plug rod 8 for pulling and adjusting.
[0033] Preferably, the top of the film shell 1 is provided with a transparent observation plate, and the inside of the film shell 1 is provided with a support sliding groove for guiding the smooth isolation frame 3. The support sliding groove is located below the transparent observation plate, and the sealing ring 2 is located below the air hole 6.
[0034] The above technical solution is adopted: the transparent observation plate (acrylic material) at the top of the film cover 1 (ABS material) makes it easy to observe the alignment status of the tempered glass film with the mobile phone screen. The support sliding groove below it provides guidance for the smooth isolation frame 3, ensuring that the left and right edges open and close in a straight line. The sealing ring 2 (silicone rubber material) is located below the air hole 6 and is attached to the side of the mobile phone to form a closed cavity, providing a sealing basis for subsequent air pressure adjustment and avoiding air leakage during air extraction, which would affect the film application effect.
[0035] Preferably, in any of the above embodiments, the smooth isolation frame 3 includes a left frame 31, a right frame 32, and a connecting spring 33 for supporting the tempered glass film. The left frame 31 and the right frame 32 are both movably connected to the inside of the film shell 1. The connecting spring 33 is fixedly installed at one end of the left frame 31. The end of the connecting spring 33 away from the left frame 31 is fixedly installed with the right frame 32. The left frame 31 and the right frame 32 are provided with connecting sleeves that fit together. The connecting sleeves are fitted around the connecting spring 33. The connecting spring 33 is provided with a guide rod that is fixedly installed with the left frame 31. The guide rod is inserted into the inside of the right frame 32.
[0036] The above technical solution is adopted as follows: the left frame 31 and the right frame 32 (made of polyoxymethylene) are movably connected to the screen protector shell 1 through a support sliding groove. The connecting spring 33 (made of piano wire) is normally in a pre-tightened state, so that the frame closes to form a support surface that matches the tempered glass screen protector. The connecting sleeves (made of ABS) of the left and right frames are fitted onto the outside of the connecting springs, and together with the internal guide rods, restrict the frame to slide only along the axial direction to avoid skewing when opening and closing. When an external force pushes the frame, the connecting springs stretch, the frame unfolds to both sides, and the tempered glass screen protector is released so that it falls naturally to fit the screen.
[0037] Preferably, in any of the above solutions, the film removal blade 4 is fixedly installed at one end of the left frame 31 and the right frame 32, the film removal blade 4 is located inside the film-coating shell 1 and the cutting edge of the film removal blade 4 is flush with the end face of the film-coating shell 1.
[0038] The above technical solution is adopted: the film removal blade 4 (made of hard alloy) is fixed to the front end of the left frame 31 and the right frame 32, and the blade edge is flush with the end face of the film shell 1. When the tempered glass film is placed on the smooth isolation frame 3, the edge of the release film rests on the film removal blade. During the opening and closing of the frame, the blade edge contacts the release film and generates shearing force, which separates the release film from the tempered glass film, avoiding the displacement of the tempered glass film caused by manual tearing.
[0039] Preferably, in any of the above embodiments, the airtight baffle 5 includes a pull-out return spring 51 and a sealing movable plate 52 made of elastic material. The return spring 51 is fixedly installed inside the film shell 1, and the top of the return spring 51 is fixedly installed with the sealing movable plate 52 that moves inside the film shell 1. The sealing movable plate 52 is located above the smooth isolation frame 3.
[0040] The above technical solution is adopted: the reset spring 51 (stainless steel material) pushes the sealing movable plate 52 (nitrile rubber material) to fit tightly against the top of the smooth isolation frame 3, sealing the gap between the frame and the film shell 1, ensuring the airtightness of the cavity. When the smooth isolation frame 3 is opened and closed, the sealing movable plate moves with the frame and generates elastic deformation. The reset spring compensates for the pressure in real time, maintains the sealing effect, and provides a stable sealing environment for air pressure regulation.
[0041] Preferably, in any of the above schemes, the air hole 6 and the adjusting air cavity 7 are both opened at both ends of the film shell 1, and the air hole 6 is located below the supporting sliding groove.
[0042] The above technical solution is adopted: the air hole 6 is located below the support sliding groove, connecting the internal cavity of the film shell 1 with the regulating air cavity 7 to form an air pressure transmission channel. When the air plug rod 8 is operated, the air pressure change in the regulating air cavity 7 is transmitted to the sealing cavity through the air hole to realize the internal air pressure regulation. The air pressure difference is used to assist the tempered film to be quickly attached and reduce the generation of air bubbles.
[0043] Preferably, in any of the above embodiments, the air plug rod 8 includes a sealing plug 81 for sealing the regulating air chamber 7 and a movable pull plate 82 for alignment and pulling. The sealing plug 81 is movably connected to the inside of the regulating air chamber 7, and the movable pull plate 82 is fixedly installed at one end of the sealing plug 81. The sealing plug 81 is located on one side of the air hole 6.
[0044] The above technical solution is adopted: the sealing plug 81 (made of nitrile rubber, adapted to the size of the adjusting air chamber 7) slides in the air chamber. The volume of the air chamber is changed by pulling the movable pull plate 82 (made of ABS material, with anti-slip texture on the surface). When the movable pull plate is pulled, the sealing plug moves outward, and the air pressure in the adjusting air chamber and the inner cavity of the film shell decreases (forming a negative pressure). The external atmospheric pressure pushes the tempered glass film to adhere tightly to the screen. When the pull plate is released, the sealing plug resets under the action of atmospheric pressure, and the air pressure returns to normal pressure. The airtightness of the sealing plug ensures the accuracy of air pressure adjustment and achieves bubble-free adhesion of the tempered glass film.
[0045] The working principle of this high-precision tempered glass film auxiliary applicator is as follows:
[0046] The tempered glass screen protector is placed inside the screen protector housing 1. The left frame 31 and right frame 32 of the smooth isolation frame 3 close under the action of the connecting spring 33, supporting the tempered glass screen protector and suspending it 15mm above the phone screen. The bottom edge of the release liner of the tempered glass screen protector rests on the release blade 4 to remove the release liner. After placement, the return spring 51 of the airtight baffle 5 pushes the sealing movable plate 52 to adhere to the smooth isolation frame 3, and together with the sealing ring 2, adheres to the side of the phone, forming a closed cavity. After confirming the alignment of the tempered glass screen protector with the phone through the transparent observation plate, the movable pull plate 82 of the air plug lever 8 is pulled, and the sealing plug 81 moves within the adjusting air chamber 7. Air vent 6 draws air out of the sealed cavity to create negative pressure, which simultaneously pushes the left frame 31 and right frame 32 to overcome the elastic force of the connecting spring 33 and unfold to both sides. The film removal blade 4 separates the release film from the tempered glass film. Under the action of gravity and negative pressure, the tempered glass film is laid flat on the mobile phone screen along the slot of the unfolded frame. When the frame unfolds to fit with the inner wall of the film cover 1, the tempered glass film is completely attached to the screen. The movable pull plate 82 is pushed to restore the air pressure. The sealing movable plate 52 is kept sealed under the action of the reset spring 51. After the film is applied, the film cover 1 can be removed. The whole process achieves high-precision bubble-free application of the tempered glass film through the linkage of air pressure adjustment and frame opening and closing.
[0047] Compared with the prior art, the present invention has the following advantages:
[0048] 1. Inside the screen protector case 1 that fits the phone, there is a smooth, unfoldable separation frame 3 that supports the torn tempered glass screen protector. This allows the tempered glass screen protector to float on the corresponding phone screen surface and align with the screen before application. When application is needed, the smooth separation frame 3 is separated, allowing the suspended tempered glass screen protector to be laid flat on the phone screen under gravity, thus completing the application. This reduces the precision error caused by manual operation of the tempered glass screen protector and allows the entire tempered glass screen protector to be applied to the phone screen at the same time, which helps improve the quality of the application.
[0049] 2. A sealing ring 2 is set inside the screen protector case 1 to seal the phone screen, so that the phone screen to be covered is in a sealed space. The controllable air plug lever 8 can extract the gas in the sealed space by adjusting the air chamber 7 and the air hole 6, reducing the air pressure inside the sealed space, so that the tempered glass screen protector can be applied to the phone screen more quickly and stably.
Claims
1. A high-precision tempered glass film auxiliary applicator, characterized in that: The device includes a screen protector housing (1) for holding a tempered glass screen protector. The bottom of the screen protector housing (1) is provided with a sealing ring (2) that fits against the side of the mobile phone. Above the sealing ring (2) is a smooth isolation frame (3) for storing the torn tempered glass screen protector and for adjusting its opening and closing. One end of the smooth isolation frame (3) is provided with a film removal blade (4) for separating the release film at the bottom of the tempered glass screen protector. One side of the film removal blade (4) is provided with an airtight baffle (5) for sealing the smooth isolation frame (3). Below the smooth isolation frame (3) is an air hole (6) for venting air from the inside of the screen protector housing (1). One end of the air hole (6) is connected to an adjustment air chamber (7) located inside the screen protector housing (1). Inside the adjustment air chamber (7) is a pull rod (8) for adjusting the air flow.
2. The high-precision tempered glass film auxiliary applicator as described in claim 1, characterized in that: The top of the film shell (1) is provided with a transparent observation plate. The interior of the film shell (1) is provided with a support sliding groove for guiding the smooth isolation frame (3). The support sliding groove is located below the transparent observation plate, and the sealing ring (2) is located below the air hole (6).
3. The high-precision tempered glass film auxiliary applicator as described in claim 2, characterized in that: The smooth isolation frame (3) includes a left frame (31) and a right frame (32) that support the tempered glass film, and a connecting spring (33) that supports and connects them. The left frame (31) and the right frame (32) are movably connected to the inside of the film shell (1). The connecting spring (33) is fixedly installed at one end of the left frame (31). The end of the connecting spring (33) away from the left frame (31) is fixedly installed with the right frame (32). The left frame (31) and the right frame (32) are provided with connecting sleeves that fit together. The connecting sleeves are fitted around the connecting spring (33). The inside of the connecting spring (33) is provided with a guide rod that is fixedly installed with the left frame (31). The guide rod is inserted into the inside of the right frame (32).
4. The high-precision tempered glass film auxiliary applicator as described in claim 3, characterized in that: The film removal blade (4) is fixedly installed at one end of the left frame (31) and the right frame (32). The film removal blade (4) is located inside the film shell (1) and the cutting edge of the film removal blade (4) is flush with the end face of the film shell (1).
5. A high-precision tempered glass film auxiliary applicator as described in claim 4, characterized in that: The airtight baffle (5) includes a pull-out return spring (51) and a sealing movable plate (52) made of elastic material. The return spring (51) is fixedly installed inside the film shell (1). The top of the return spring (51) is fixedly installed with a sealing movable plate (52) that moves inside the film shell (1). The sealing movable plate (52) is located above the smooth isolation frame (3).
6. The high-precision tempered glass film auxiliary applicator as described in claim 5, characterized in that: The air hole (6) and the regulating air chamber (7) are both opened at both ends of the film shell (1), and the air hole (6) is located below the supporting sliding groove.
7. A high-precision tempered glass film auxiliary applicator as described in claim 6, characterized in that: The air plug rod (8) includes a sealing plug (81) for sealing the regulating air chamber (7) and a movable pull plate (82) for aligning and pulling. The sealing plug (81) is movably connected to the inside of the regulating air chamber (7). The movable pull plate (82) is fixedly installed at one end of the sealing plug (81). The sealing plug (81) is located on one side of the air hole (6).