Screen protection device

Abstract

The utility model discloses a screen protection device contains one extension type back cover, one track piece and one linkage mechanism. Extension type back cover contains one main body section and can remove and install two extension sections of opposite two sides of main body section. Track piece is fixed in main body section, and contains two circular arc racks and two straight line guide rails. Linkage mechanism contains one first linkage piece of pivot connection in main body section, two second linkage pieces of can remove and set respectively in two straight line guide rails and two gear wheels of can rotate and engage respectively in two circular arc racks. Every gear wheel pivot connection one pivot connection department of first linkage piece and one second linkage piece. Two extension sections can move along track piece through linkage mechanism to move relative to main body section. Thus, extension type back cover can be controlled and form different sizes to expand the application of screen protection device, and then meet more diversified demand.

Description

Technical Field

[0001] This utility model relates to a screen protection device, and more particularly to a screen protection device with different size variations. Background Technology

[0002] Most portable display devices (such as mobile phones or tablets) are protected by screen protectors. However, existing screen protectors are of fixed sizes, making them increasingly difficult to meet the needs of current portable display devices. Therefore, the applicant believes that these shortcomings can be improved and proposes this utility model with a reasonable design that effectively addresses these shortcomings. Utility Model Content

[0003] This utility model provides a screen protection device that can effectively improve the defects that may occur in existing screen protection device shells.

[0004] This utility model discloses a screen protector, comprising: an extendable back cover, including a main body segment and two extendable segments mounted on opposite sides of the main body segment; wherein the two extendable segments are movable relative to the main body segment along a telescopic direction; a track member fixed to the main body segment, and the track member comprising: two arc-shaped racks; and two linear guides parallel to the telescopic direction; a linkage mechanism connecting the main body segment and the two extendable segments, and the linkage mechanism comprising: a first linkage member pivotally connected to the main body segment, and the first linkage member having a portion of the outer surface of each of the two arc-shaped racks adjacent to the outer surface of the racks. The cover has two pivot joints on the side; two gears that are rotatably meshed with the outer sides of two circular arc racks, and the two gears are pivotally connected to the two pivot joints respectively; and two second linkages, one end of which is pivotally connected to the two pivot joints and the two gears respectively; the other end of which is movably disposed on two linear guide rails and pivotally connected to two extension sections respectively; wherein, the two extension sections of the extendable back cover can move along the track members through a linkage mechanism, so as to move relative to the main body section in the extension direction between a retracted position adjacent to each other and an extended position far apart from each other.

[0005] Optionally, the track component has two arc-shaped guide rails; wherein, the first linkage component has two limiting parts, which are movably disposed on the two arc-shaped guide rails respectively.

[0006] Optionally, the center of each arc rack is located between two linear guides and they are arranged in a straight line.

[0007] Optionally, each extension segment includes: at least one linkage fixed to the extension segment, and at least one linkage pivotally connected to the other end of the second linkage and movably disposed on the corresponding linear guide rail.

[0008] Optionally, at least one linkage is provided, and the number of linkages is two, with the two linkages fixed at two corners of the corresponding extension.

[0009] Optionally, the screen protector includes a control member rotatably mounted on the first linkage, and the control member rotates synchronously with the first linkage to drive the two extension sections to move relative to the main body section via two gears and two second linkages.

[0010] Optionally, the screen protector includes a bracket, and the control components are detachably mounted on the bracket.

[0011] Optionally, the extended back cover includes at least one linear slide rail, which includes: a track fixed to the main body section; and two sliders respectively mounted on the two extended sections, with the two sliders movably mounted on the track.

[0012] Optionally, the screen protector is mounted on a first screen when the extended back cover is in the retracted position, and the screen protector is mounted on a second screen larger than the first screen when the extended back cover is in the extended position.

[0013] Optionally, the screen protector is mounted on an extendable screen and extends and retracts between a folded position and an extended position while the screen of the extendable screen extends and retracts.

[0014] In summary, the screen protector disclosed in this utility model embodiment can be manipulated to form different sizes through the combination of the extendable back cover, the track component, and the linkage mechanism, thereby effectively expanding the application of the screen protector and meeting more diverse needs.

[0015] To further understand the features and technical content of this utility model, please refer to the following detailed description and drawings of this utility model. However, these descriptions and drawings are only used to illustrate this utility model and are not intended to limit the scope of protection of this utility model in any way. Attached Figure Description

[0016] Figure 1 This is a perspective view of the screen protection device of Embodiment 1 of this utility model in the folded position.

[0017] Figure 2 for Figure 1 A three-dimensional diagram from another perspective.

[0018] Figure 3 This is a plan view of the screen protection device in the extended position according to Embodiment 1 of this utility model.

[0019] Figure 4This is an exploded view of the screen protection device in the extended position according to Embodiment 1 of this utility model.

[0020] Figure 5 for Figure 4 An exploded view of the extended back cover.

[0021] Figure 6 This is a three-dimensional schematic diagram of the screen protection device of Embodiment 1 of the present invention applied to the first screen when in the folded position.

[0022] Figure 7 This is a three-dimensional schematic diagram of the screen protection device of Embodiment 1 of the present invention applied to the second screen in the extended position.

[0023] Figure 8 This is a three-dimensional schematic diagram of the screen protection device of Embodiment 1 of this utility model applied to an extendable screen.

[0024] Figure 9 This is a perspective view of the screen protection device of Embodiment 2 of this utility model in the folded position.

[0025] Figure 10 This is a perspective view of the screen protection device in the extended position according to Embodiment 2 of this utility model. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of the "screen protector" disclosed in this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this utility model. Furthermore, the accompanying drawings of this utility model are for simple illustrative purposes only and are not depictions of actual dimensions, as stated in advance. The following embodiments will further describe the relevant technical content of this utility model in detail, but the disclosed content is not intended to limit the scope of protection of this utility model.

[0027] It should be understood that while terms such as “first,” “second,” and “third” may be used in this document to describe various elements or features, these elements or features should not be limited by these terms. These terms are primarily used to distinguish one element from another, or one feature from another. Furthermore, the term “or” as used herein may, depending on the context, include any combination of one or more of the related listed items.

[0028] [Example 1]

[0029] Please see Figures 1 to 8 As shown, this is one embodiment of the present invention. Figure 1 and Figure 2 As shown, this embodiment discloses a screen protector 100, which includes an extendable back cover 1, a track member 2 fixed to the extendable back cover 1, a linkage mechanism 3 installed between the extendable back cover 1 and the track member 2, and a control member 4 installed on the linkage mechanism 3. However, this utility model is not limited to this. For example, in other embodiments of this utility model not shown, the control member 4 may be omitted or replaced by other components according to actual needs. The following will first describe the structure and connection relationship of the various components of the screen protector 100, and then explain the feasible application methods of the screen protector 100.

[0030] like Figure 1 and Figures 3 to 5 As shown, the extendable back cover 1 in this embodiment includes a main body section 11, two extendable sections 12 mounted on opposite sides of the main body section 11, and two linear slide rails 13 connecting the main body section 11 and the two extendable sections 12. The two extendable sections 12 are movable relative to the main body section 11 along a telescopic direction D, so that the two extendable sections 12 of the extendable back cover 1 are in a closed position adjacent to each other relative to the main body section 11 (e.g., ...). Figure 1 ) and an extended position that is far away from each other (e.g.: Figure 3 The extension segment 12 moves between the two sides. Each extension segment 12 includes two connecting rods 121, which are fixed to the two corners of the corresponding extension segment 12. It should be noted that the telescopic direction D in this embodiment is described as being parallel to the length direction of the extension back cover 1.

[0031] In this embodiment, the two linear slide rails 13 are respectively located on the two long side edges of the extended back cover 1, and each linear slide rail 13 includes a track 131 and two sliders 132 respectively installed on the two extended sections 12, and the two sliders 132 of each linear slide rail 13 are movably installed on the track 131.

[0032] Therefore, in this embodiment, the two extended sections 12 of the extendable back cover 1 can move relative to the main body section 11 along the telescopic direction D via two linear slide rails 13, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the extendable back cover 1 may use one of the linear slide rails 13 or not use any of the linear slide rails 13, depending on actual needs.

[0033] The track component 2 is fixed to the main body section 11, and the track component 2 includes two arc-shaped racks 21 with the same radius, two arc-shaped guide rails 22 with the same radius, and two linear guide rails 23 parallel to the telescopic direction D, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the two arc-shaped guide rails 22 may be omitted or replaced by other components according to actual needs; or, the positions of the two arc-shaped racks 21 may be interchanged with the positions of the two arc-shaped guide rails 22 respectively.

[0034] In this embodiment, the centers of the two arc-shaped racks 21 and the centers of the two arc-shaped guide rails 22 are all located on a rotation axis R perpendicular to the telescopic direction D. Furthermore, the two arc-shaped guide rails 22 are located inside the two arc-shaped racks 21 and are adjacent to them. Additionally, the center of each arc-shaped rack 21 is located between the two linear guide rails 23 and are arranged in a straight line. The two linear guide rails 23 are located outside the circular area containing the two arc-shaped racks 21.

[0035] It should be noted that the specific shape of the track component 2 can vary depending on actual needs, but for the sake of understanding this embodiment, the following description will use one of the feasible structures to illustrate the shape of the track component 2.

[0036] Specifically, in this embodiment, the track component 2 has a central section 24 and two side sections 25 integrally connected to both ends of the central section 24. The central section 24 is generally circular and fixed at the general center of the main body section 11, while the two side sections 25 are each elongated and parallel to the extension direction D, and the ends of the two side sections 25 protrude from opposite side edges of the main body section 11, respectively corresponding to the two extension sections 12.

[0037] Furthermore, the two circular arc racks 21 are formed on the outer edge of the central section 24, the two arc-shaped guide rails 22 are formed in the two arc-shaped through holes of the central section 24, and the two linear guide rails 23 are formed in the two linear through holes of the two side sections 25 respectively.

[0038] The linkage mechanism 3 connects the main body segment 11 and the two extension segments 12, and the linkage mechanism 3 can run along the track member 2. The linkage mechanism 3 includes a first linkage member 31, two second linkage members 32, and two gears 33 connecting the two second linkage members 32 to the first linkage member 31.

[0039] The first linkage 31 is pivotally connected to the main body segment 11 along the rotation axis R, and the first linkage 31 is generally located between the main body segment 11 and the track member 2 (e.g., the central segment 24). In this embodiment, the first linkage 31 is generally elongated rod-shaped and has two pivot portions 311 and two limiting portions 312. The two pivot portions 311 are equidistant from the rotation axis R, and the two limiting portions 312 are also equidistant from the rotation axis R. The two pivot portions 311 are adjacent to and protrude from the two arcuate racks 21, while the two limiting portions 312 are movably disposed on the two arcuate guide rails 22. Furthermore, the two gears 33 are rotatably meshed with the two arcuate racks 21, and the two gears 33 are pivotally connected to the two pivot portions 311 of the first linkage 31.

[0040] One end of each of the two second linkage members 32 is pivotally connected to one of the two gears 33 (that is, each gear 33 is pivotally connected to one of the pivot parts 311 and one of the second linkage members 32), and the other end of each of the two second linkage members 32 is movably disposed on one of the two linear guide rails 23 along the telescopic direction D and pivotally connected to one of the two extension sections 12 (e.g., two linkage rods 121 are pivotally connected to the other end of the second linkage member 32), so that each of the second linkage members 32 can move in conjunction with the first linkage member 31 through the corresponding gear 33.

[0041] It should be further noted that the two second linkage members 32 are arranged in a 2-fold rotational symmetry with respect to the axis of rotation R in this embodiment. For ease of understanding, the following description will use one of the second linkage members 32 as an example, but the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the construction of the two second linkage members 32 may vary slightly depending on actual needs.

[0042] As described above, the two extension sections 12 of the extendable back cover 1 can move along the track member 2 via the linkage mechanism 3, and relative to the main body section 11 in the extension direction D at the folded position (e.g.: Figure 1 ) and the extended position (e.g.: Figure 3 It can move between the closed position and the extended position. It should be noted that, in this embodiment, the extended back cover 1 is described as being able to stop at the closed position or the extended position, but in other embodiments not shown in this utility model, the extended back cover 1 can also stop at any position between the closed position and the extended position according to actual needs.

[0043] Therefore, in this embodiment, the screen protector 100 can be manipulated to form different sizes through the mutual combination of the extendable back cover 1, the track member 2 and the linkage mechanism 3, thereby effectively expanding the application of the screen protector 100 and meeting more diverse needs.

[0044] Furthermore, the control element 4 is rotatably mounted on the first linkage 31, and the control element 4 can drive the first linkage 31 to rotate, thereby moving the two extension segments 12 relative to the main body segment 11 via the two gears 33 and the two second linkages 32. In this embodiment, the track element 2 and the linkage mechanism 3 are mounted on the inner side of the extension back cover 1 (or the main body segment 11), while the control element 4 is mounted on the outer side of the extension back cover 1 (or the main body segment 11).

[0045] Therefore, in this embodiment, the screen protector 100 can provide the user with the ability to control the movement of the two extension segments 12 relative to the main body segment 11 by rotating the control element 4, or to move the two extension segments 12 relative to the main body segment 11 by directly applying force to them.

[0046] The above content has explained the structure and connection relationship of the various components of the screen protection device 100. The following content will introduce the feasible application methods of the screen protection device 100.

[0047] For example, such as Figure 6 and Figure 7 As shown, the screen protector 100 can be installed on a first screen S1 when the extended back cover 1 is in the folded position, and the screen protector 100 can also be installed on a second screen S2, which is larger than the first screen S1, when the extended back cover 1 is in the extended position. Therefore, the screen protector 100 can be installed on screens of various sizes.

[0048] Or, such as Figure 8 As shown, the screen protector 100 can be installed on an extendable screen S3 and, while the extendable screen S3 extends and retracts, the extendable back cover 1 extends and retracts between the retracted position and the extended position. Therefore, the screen protector 100 is applicable to a novel type of extendable screen S3.

[0049] [Example 2]

[0050] Please see Figure 9 and Figure 10As shown, this is Embodiment Two of the present invention. Since this embodiment is similar to Embodiment One described above, the similarities between the two embodiments will not be repeated. The main differences between this embodiment and Embodiment One are explained below:

[0051] In this embodiment, the screen protector 100 further includes a bracket 5, and the control member 4 is detachably mounted on the bracket 5. It should be noted that when the control member 4 is mounted and confined to the bracket 5, the extendable back cover 1 can rotate relative to the bracket 5, allowing the extendable back cover 1 to move between the folded position and the extended position.

[0052] Furthermore, although the bracket 5 in this embodiment is described as having a structure that allows it to be movably placed on a work surface (such as a desktop), the present invention is not limited thereto. For example, in other embodiments of the present invention not shown, the bracket 5 may also be fixed in a default position (such as a wall) according to actual needs.

[0053] [Technical Effects of the Embodiments of this Utility Model]

[0054] In summary, the screen protection device disclosed in this utility model embodiment can, through the mutual combination of the extendable back cover, the track component, and the linkage mechanism, allow the extendable back cover to be manipulated to form different sizes, thereby effectively expanding the application of the screen protection device and meeting more diverse needs.

[0055] The above-disclosed content is only a preferred and feasible embodiment of the present utility model, and is not intended to limit the patent scope of the present utility model. Therefore, all equivalent technical changes made based on the contents of the present utility model specification and drawings are included in the patent scope of the present utility model.

Claims

1. A screen protector, characterized in that, The screen protector includes: An extendable back cover includes a main body section and two extendable sections mounted on opposite sides of the main body section; wherein the two extendable sections are movable relative to the main body section in a telescopic direction; A track component, fixed to the main body segment, and the track component comprising: Two circular arc racks; and Two linear guides, parallel to the direction of extension; and A linkage mechanism connects the main body segment and the two extension segments, and the linkage mechanism includes: A first linkage is pivotally connected to the main body section, and the first linkage has two pivot portions respectively adjacent to the outer sides of the two arc racks; Two gears, rotatably meshing with the outer sides of the two said arc-shaped racks, and the two gears are respectively pivotally connected to the two said pivot portions; and Two second linkage members, one end of each second linkage member is pivotally connected to the two pivoting portions and the two gears respectively; the other ends of each second linkage member are movably disposed on the two linear guide rails and pivotally connected to the two extension sections respectively; and The two extended sections of the extendable back cover can move along the track via the linkage mechanism, relative to the main body section, between a retracted position adjacent to each other and an extended position far apart from each other along the telescopic direction.

2. The screen protection device according to claim 1, characterized in that, The track component has two arc-shaped guide rails; wherein, the first linkage component has two limiting parts, and the two limiting parts are respectively movably disposed on the two arc-shaped guide rails.

3. The screen protection device according to claim 1, characterized in that, The center of each of the circular arc racks is located between the two linear guides and they are arranged in a straight line.

4. The screen protection device according to claim 1, characterized in that, Each of the aforementioned extension segments includes: At least one linkage is fixed to the extension section, and at least one of the linkages is pivotally connected to the other end of the second linkage and movably disposed on the corresponding linear guide.

5. The screen protection device according to claim 4, characterized in that, At least one of the connecting rods is in the number of two, and the two connecting rods are respectively fixed at two corners of the corresponding extension segment.

6. The screen protection device according to claim 1, characterized in that, The screen protector includes a control member rotatably mounted on the first linkage, and the control member rotates synchronously with the first linkage to drive the two extension segments to move relative to the main body segment via the two gears and the two second linkages.

7. The screen protection device according to claim 6, characterized in that, The screen protector includes a bracket, and the control element is detachably mounted on the bracket.

8. The screen protection device according to claim 1, characterized in that, The extendable back cover includes at least one linear slide rail, the linear slide rail comprising: A track, fixed to the main body section; and Two sliders are respectively mounted on the two extension sections, and the two sliders are movably mounted on the track.

9. The screen protection device according to claim 1, characterized in that, The screen protector is mounted on a first screen when the extended back cover is in the folded position, and the screen protector is mounted on a second screen, which is larger than the first screen, when the extended back cover is in the extended position.

10. The screen protection device according to claim 1, characterized in that, The screen protector is installed on an extendable screen, and while the extendable screen extends and retracts, the extendable back cover extends and retracts between the retracted position and the extended position.

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