Protective film capable of preventing rolling

Abstract

The utility model discloses an anti-rolling protective film, which relates to the technical field of protective films, and comprises a protective film main body, a protective sticker is attached to the bottom end of the protective film main body, the side wall of the protective sticker is fixedly connected with a brace, and the outer wall of the protective film main body is sleeved with an anti-rolling mechanism. The top end of the anti-rolling mechanism is fixedly connected with a positioning mechanism; the positioning mechanism comprises a shell, the inner wall of the shell is slidably connected with a first sliding rod extending out of the shell, and the end, located outside the shell, of the first sliding rod is fixedly connected with a positioning plate. According to the utility model, the two groups of positioning plates are pulled and then are placed on two sides of the mobile phone, and then the positioning plates are loosened to enable the two groups of positioning plates to be close to each other under the driving of the second reset springs, so that the two groups of positioning plates are clamped on the side wall of the mobile phone; therefore, the phenomenon that the protective film is slantly pasted in the process of pasting the screen of the mobile phone is not easy to occur.

Description

Technical Field

[0001] The utility model relates to the technical field of protective films, in particular to a protective film for preventing curling. Background Art

[0002] With the continuous advancement of technology, electronic products are being used more and more widely. In order to make these electronic products last longer, a layer of protective film is basically affixed to the screen of the electronic products. Now there are more and more types of protective films.

[0003] The existing protective film may stick together during the pasting process, and the staff needs to pull the sticky film flat before the film can be pasted on the screen of the electronic product. When the film sticks together, the film may not be able to continue to be used, and a new film needs to be replaced, which will cause waste of the film and is more troublesome.

[0004] An existing patent (Announcement No.: CN220457449U) discloses a protective film for preventing curling, comprising a protective film body, a first protective film is provided on the upper end surface of the protective film body, a second protective film is provided on the lower end surface of the protective film body, and two anti-bending strips are symmetrically fixedly installed on the upper end surface of the first protective film, and the inner wall of the anti-bending strip abuts against the outer wall of the protective film body. This protective film for preventing curling is provided with a first protective film, a second protective film, and an anti-bending strip on the outer wall of the protective film body, and the protective film body is limited by the anti-bending strip, so that the protective film can be prevented from curling during the film application process, and no waste of the film will be caused.

[0005] However, the above technical solution still has certain defects. When a protective film needs to be attached to the surface of electronic products such as mobile phones during use, it cannot be guaranteed that the protective film is attached to the mobile phone screen accurately enough during the attachment process. The mobile phone screen is easily attached crookedly, resulting in waste of the protective film. Therefore, a protective film that prevents curling is proposed. Utility Model Content

[0006] Based on this, the purpose of the utility model is to provide a protective film that prevents curling, so as to solve the technical problems raised in the above background.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a protective film for preventing curling, comprising a protective film body, a protective sticker is attached to the bottom end of the protective film body, a pull strip is fixedly connected to the side wall of the protective sticker, an anti-rolling mechanism is sleeved on the outer wall of the protective film body, and a positioning mechanism is fixedly connected to the top end of the anti-rolling mechanism;

[0008] The positioning mechanism includes a shell, the inner wall of the shell is slidably connected to a first sliding rod extending to the outside of the shell, the first sliding rod is fixedly connected to a positioning plate at one end outside the shell, the inner wall of the first sliding rod is slidably connected to a second sliding rod, and the second sliding rod is fixedly connected to another set of positioning plates at one end extending to the outside of the shell.

[0009] As a preferred technical solution for preventing the protective film from curling of the utility model, two groups of second return springs are fixedly connected to the outer wall of the second sliding rod, and the ends of the second return springs are fixedly connected to the inner wall of the first sliding rod.

[0010] As a preferred technical solution for preventing the protective film from curling of the utility model, the anti-curling mechanism includes a support plate, which is slidably connected to the outer wall of the protective film body, and the support plate is fixedly connected to a rubber strip at the contact position with the protective film body.

[0011] As an optimal technical solution for preventing the protective film from curling of the utility model, the outer wall of the support plate is slidably connected with two groups of positioning frames, the two groups of positioning frames are fixedly connected to the outer wall of the shell, and the side wall of the support plate is fixedly connected with multiple groups of sliders.

[0012] As a preferred technical solution for preventing the protective film from curling of the utility model, the inner wall of the positioning frame is provided with multiple groups of sliding grooves matching the sliders, and the inner wall of the positioning frame is slidably connected with multiple groups of protrusions extending into the inside of the sliding grooves.

[0013] As a preferred technical solution for the protective film to prevent curling of the utility model, one end of the protrusion located inside the positioning frame is fixedly connected to a first return spring, and the end of the first return spring is fixedly connected to the inner wall of the positioning frame.

[0014] As a preferred technical solution for the protective film for preventing curling of the utility model, the slider is slidably connected to the inner wall of the slide groove, and the side wall of the slider is provided with a groove that matches the protrusion.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] 1. The utility model pulls two sets of positioning plates and then places the two sets of positioning plates on both sides of the mobile phone, and then loosens the positioning plates so that the two sets of positioning plates are driven by the second return spring to approach each other, so that the two sets of positioning plates are clamped on the side wall of the mobile phone, so that the protective film is not easily attached crookedly during the process of attaching the screen of the mobile phone;

[0017] 2. The utility model enables the support plate to be sleeved on the outside of the protective film body. During the entire bonding process, the support plate is pushed closer to the mobile phone screen, so that the support plate drives the protective film body to be bonded to the mobile phone screen, so that the protective film is always inside the support plate, avoiding curling of the protective film, and the protective film is evenly stressed during the bonding process, thereby achieving a better bonding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main exploded structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the shell of the utility model;

[0021] Figure 4 It is a schematic diagram of the explosion structure of the utility model from a side view;

[0022] Figure 5 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0023] Figure 6 It is a schematic diagram of the internal structure of the positioning frame of the utility model.

[0024] In the figure: 1. Protective film body; 2. Anti-roll mechanism; 3. Positioning mechanism; 4. Protective sticker; 5. Pull strip;

[0025] 201, support plate; 202, rubber strip; 203, positioning frame; 204, slider; 205, slide groove; 206, convex block; 207, first return spring;

[0026] 301, housing; 302, first sliding rod; 303, positioning plate; 304, second sliding rod; 305, second return spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0028] The following describes an embodiment of the utility model based on its overall structure.

[0029] A protective film to prevent curling, such as Figures 1 to 6As shown, it comprises a protective film body 1, a protective sticker 4 is attached to the bottom end of the protective film body 1, a pull strip 5 is fixedly connected to the side wall of the protective sticker 4, an anti-rolling mechanism 2 is sleeved on the outer wall of the protective film body 1, and a positioning mechanism 3 is fixedly connected to the top end of the anti-rolling mechanism 2;

[0030] The positioning mechanism 3 includes a shell 301, the inner wall of the shell 301 is slidably connected to a first sliding rod 302 extending to the outside of the shell 301, the first sliding rod 302 is fixedly connected to a positioning plate 303 at one end outside the shell 301, the inner wall of the first sliding rod 302 is slidably connected to a second sliding rod 304, the second sliding rod 304 is fixedly connected to another set of positioning plates 303 at one end extending to the outside of the shell 301, the outer wall of the second sliding rod 304 is fixedly connected to two sets of second return springs 305, and the end of the second return spring 305 is fixedly connected to the inner wall of the first sliding rod 302.

[0031] By pulling the two sets of positioning plates 303, the two sets of positioning plates 303 drive the first sliding rod 302 and the second sliding rod 304 to slide toward the outside of the housing 301, so that the first sliding rod 302 and the second sliding rod 304 compress the second return spring 305, and then place the two sets of positioning plates 303 on both sides of the mobile phone, and then release the two sets of positioning plates 303. At this time, the two sets of second return springs 305 rebound, so that the second return springs 305 push the first sliding rod 302 and the second sliding rod 304 to slide in the opposite direction, thereby pulling the two sets of positioning plates 303 to fit on both sides of the mobile phone, so that the protective film body 1 remains parallel to the mobile phone, and the edge of the protective film body 1 is aligned with the edge of the mobile phone screen.

[0032] Please refer to Figures 1 to 6 The anti-roll mechanism 2 includes a support plate 201, which is slidably connected to the outer wall of the protective film body 1. The support plate 201 is fixedly connected with a rubber strip 202 at a contact position with the protective film body 1. The outer wall of the support plate 201 is slidably connected with two groups of positioning frames 203, and the two groups of positioning frames 203 are fixedly connected to the outer wall of the shell 301. The side wall of the support plate 201 is fixedly connected with multiple groups of sliders 204. The inner wall of the positioning frame 203 is provided with multiple groups of sliding grooves 205 that match the sliders 204. The inner wall of the positioning frame 203 is slidably connected with multiple groups of protrusions 206 extending into the interior of the sliding grooves 205. One end of the protrusion 206 located inside the positioning frame 203 is fixedly connected with a first return spring 207. The end of the first return spring 207 is fixedly connected to the inner wall of the positioning frame 203. The slider 204 is slidably connected to the inner wall of the sliding groove 205, and the side wall of the slider 204 is provided with a groove that matches the protrusion 206.

[0033] Pull the pull rod 5 so that the pull rod 5 drives the protective sticker 4 to separate from the protective film body 1, and push the support plate 201 downward so that the support plate 201 drives the slider 204 to slide downward. In the process of the support plate 201 sliding downward, the protective film is pushed closer to the mobile phone screen, so that the protective film body 1 and the mobile phone screen are attached together. When the support plate 201 drives the slider 204 to slide downward, the groove on the slider 204 pushes the protrusion 206, causing the protrusion 206 to slide toward the inside of the positioning frame 203, thereby compressing the first return spring 207. When the slider 204 completely slides over the protrusion 206, the first return spring 207 pushes the protrusion 206 to return to its original position. Therefore, the slider 204 needs to overcome the elastic force of the first return spring 207 to slide downward, so that the support block will not slide downward when not in use. Therefore, when the protective film is fixed on the mobile phone by the positioning mechanism 3, a certain gap is left between the protective sticker 4 and the mobile phone screen, which facilitates the removal of the protective sticker 4. There is no need to remove the protective sticker 4 in advance, which avoids dust sticking to the protective film body 1 during the process of attaching the protective film body 1.

[0034] When in use, the two groups of positioning plates 303 are pulled and then placed on both sides of the mobile phone, and then the positioning plates 303 are loosened so that the two groups of positioning plates 303 are driven by the second return spring 305 to approach each other, so that the two groups of positioning plates 303 are clamped on the side walls of the mobile phone, making it difficult for the protective film to be crooked during the process of laminating the screen of the mobile phone. The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology.

[0035] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A protective film for preventing curling, comprising a protective film body (1), characterized in that: The bottom end of the protective film body (1) is attached with a protective sticker (4), the side wall of the protective sticker (4) is fixedly connected with a pull strip (5), the outer wall of the protective film body (1) is provided with an anti-rolling mechanism (2), and the top end of the anti-rolling mechanism (2) is fixedly connected with a positioning mechanism (3); The positioning mechanism (3) comprises a shell (301), the inner wall of the shell (301) is slidably connected to a first sliding rod (302) extending to the outside of the shell (301), one end of the first sliding rod (302) located outside the shell (301) is fixedly connected to a positioning plate (303), the inner wall of the first sliding rod (302) is slidably connected to a second sliding rod (304), and one end of the second sliding rod (304) extending to the outside of the shell (301) is fixedly connected to another set of positioning plates (303).

2. The anti-curling protective film according to claim 1, characterized in that: Two groups of second return springs (305) are fixedly connected to the outer wall of the second sliding rod (304), and the ends of the second return springs (305) are fixedly connected to the inner wall of the first sliding rod (302).

3. The anti-curling protective film according to claim 1, characterized in that: The anti-roll mechanism (2) comprises a support plate (201), the support plate (201) being slidably connected to the outer wall of the protective film body (1), and the support plate (201) being fixedly connected to a rubber strip (202) at a position where it contacts the protective film body (1).

4. The anti-curling protective film according to claim 3, characterized in that: The outer wall of the support plate (201) is slidably connected to two groups of positioning frames (203), the two groups of positioning frames (203) are fixedly connected to the outer wall of the housing (301), and the side wall of the support plate (201) is fixedly connected to multiple groups of sliding blocks (204).

5. The anti-curling protective film according to claim 4, characterized in that: The inner wall of the positioning frame (203) is provided with a plurality of groups of slide grooves (205) that match the sliders (204), and the inner wall of the positioning frame (203) is slidably connected with a plurality of groups of protrusions (206) that extend into the slide grooves (205).

6. The anti-curling protective film according to claim 5, characterized in that: One end of the protrusion (206) located inside the positioning frame (203) is fixedly connected to a first return spring (207), and the end of the first return spring (207) is fixedly connected to the inner wall of the positioning frame (203).

7. The anti-curling protective film according to claim 5, characterized in that: The slider (204) is slidably connected to the inner wall of the slide groove (205), and the side wall of the slider (204) is provided with a groove that matches the protrusion (206).

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