Protective sleeve of folding screen mobile device

By designing a protective case for folding screen mobile phones, including mounting holes and restrictors for the stylus, as well as driving components, the problem of difficult storage of the stylus is solved, and the convenient and integrated storage of the stylus and the equipment is achieved, improving the convenience and safety of use.

CN222940848UActive Publication Date: 2025-06-03GKK TECH CO LTD
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Patent Information

Application Number
CN202422033699.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-21
Publication Date
2025-06-03
Estimated Expiration
2034-08-21

AI Technical Summary

Technical Problem

When existing folding screen mobile phones are equipped with protective cases, it is difficult to store the stylus, which leads to users who need to carry it alone, which increases the burden, and there are problems such as loss or inconvenience.

Method used

A protective cover for a folding screen mobile device is designed, including mounting holes and restrictors for accommodating the stylus, ensuring that the stylus does not slide out in non-use state, and the stylus is conveniently extended and stored through the drive assembly.

Benefits of technology

The integrated storage of stylus and folding screen equipment is realized, avoiding the burden and risk of loss caused by carrying stylus alone, and improving the convenience and safety of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protective sleeve of a folding screen mobile device, relates to the field of mobile device accessories, and can solve the problem that a handwriting pen is not easy to store when a protective sleeve is used by a folding screen mobile phone in the prior art. The folding screen mobile device comprises a first folding part and a second folding part rotationally connected to the first folding part through a folding hinge, and display screens are arranged on the front face and the back face of the second folding part correspondingly. The protective sleeve comprises a first protective shell and a mounting part, the first protective shell sleeves the first folding part, the mounting part is connected to the outer wall of the first protective shell, the mounting part is provided with a mounting hole for accommodating a stylus pen, and the mounting part is connected with a limiting piece for limiting the stylus pen from sliding out of the mounting hole.
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Description

Technical Field

[0001] This application relates to the field of mobile device accessories, and particularly to a protective case for a foldable screen mobile device. Background Art

[0002] As an important innovation in the field of mobile communication, the foldable screen mobile phone combines the dual advantages of a smart phone and a tablet computer, and realizes the folding and unfolding of the device through a flexible screen. This design not only improves the portability of the device, but also provides a larger display area in the unfolded state, meeting the diverse needs of users in different scenarios. With the maturity of foldable screen technology, various types of foldable screen mobile phones have gradually emerged in the market, and they generally adopt a hinge structure to achieve smooth folding and unfolding of the screen.

[0003] The Chinese patent document (Publication No.: CN221081362U) discloses a protective kit for a foldable screen mobile device. The protective kit includes a first folding part and a second folding part rotatably connected to the first folding part through a folding hinge, and both the front and back sides of the second folding part have display screens. The protective kit includes a first protective case for sleeving on the first folding part, a central axis protective case rotatably connected to one side of the first protective case, and a second protective case for sleeving on the second folding part. This solution can effectively protect the central axis folding hinge in different states of the foldable screen mobile phone through the design of magnetic attraction parts and protective cases, thereby avoiding damage caused by dropping.

[0004] Some existing foldable screen mobile phones are equipped with a stylus. The stylus has unique advantages in convenient operation, precise input, drawing, note-taking, etc., and is especially suitable for business people and creative workers. However, it is often difficult for a foldable screen mobile phone connected to the above protective kit to integrate a stylus storage structure, and the stylus generally needs to be carried separately, which not only increases the burden on users, but also has problems such as being easily lost or inconvenient to carry. Summary of the Utility Model

[0005] Therefore, this application provides a protective case for a foldable screen mobile device to solve the problem that the stylus is not easy to store when a foldable screen mobile phone uses a protective kit in the prior art.

[0006] In order to achieve the above object, this application provides the following technical solutions:

[0007] A protective case for a foldable screen mobile device, the foldable screen mobile device includes a first folding part and a second folding part rotatably connected to the first folding part through a folding hinge. Both the front and back sides of the second folding part have display screens. The protective case includes a first protective shell for sleeving on the first folding part and an installation part connected to the outer wall of the first protective shell. The installation part is provided with an installation hole for accommodating a stylus, and the installation part is connected with a limiting member for restricting the stylus from sliding out of the installation hole.

[0008] Optionally, there are multiple limiting members. The multiple limiting members are arranged at intervals along the length extension direction of the installation hole on the hole wall of the installation hole. The limiting members are damping bumps integrally formed at two opposite positions on the hole wall of the installation hole. The installation part is connected with a driving component for driving the stylus to slide out of the installation hole.

[0009] Optionally, the driving component includes a button key and a driving plate connected to the button key. The installation part is provided with a driving cavity communicating with the installation hole away from the entrance of the installation hole. The outer wall of the installation part is provided with a driving groove communicating with the driving cavity. The driving plate is arranged in the driving cavity. The button key passes through the driving groove and is arranged on the outer wall of the installation part. The button key is used to be toggled by a finger so that the driving plate pushes the stylus to partially extend out of the installation hole from the entrance of the installation hole.

[0010] Optionally, the driving plate is connected to the button key through a connecting part. The connecting part is located in the driving groove so that the driving plate abuts against the wall of the driving cavity and one side of the button key abuts against the outer wall of the installation part. The driving plate includes a first plate connected to the connecting part and a second plate integrally formed at one end of the first plate. A relief groove for avoiding the tip of the stylus is provided at one end of the second plate close to the installation hole.

[0011] Optionally, the connecting part includes two first connecting plates integrally formed on the button key and two second connecting plates integrally formed on the button key. The two first connecting plates are located on both sides of the button key in the length extension direction. The two second connecting plates are located on both sides of the button key in the width extension direction. The first plate is provided with two connecting holes for cooperating with the first connecting plates. The two connecting holes correspond to the two first connecting plates one by one. A limiting member for cooperating with the connecting hole is integrally formed at one end of the first connecting plate away from the button key so that the limiting member passes through the connecting hole and abuts against the side of the first plate away from the first connecting plate. The first plate is provided with two connecting grooves for cooperating with the second connecting plates so that one end of the second connecting plate away from the button key is embedded in the connecting groove. The two connecting grooves correspond to the two second connecting plates one by one.

[0012] Optionally, a plurality of first limiting protrusions are formed on one side wall of the driving groove and are arranged at intervals along the length extension direction of the driving groove, and a second limiting protrusion for cooperating with the first limiting protrusion is connected to the side wall of the second connecting plate.

[0013] Optionally, a positioning groove communicating with the driving groove is formed on the outer wall of the mounting portion, the positioning groove is located on one side of the driving groove close to the mounting hole, the length extension direction of the positioning groove is parallel to the length extension direction of the mounting hole, and the button key is connected with a positioning block for being embedded in the positioning groove.

[0014] Optionally, a limiting step for restricting the stylus from sliding out of the mounting hole is integrally formed on the hole wall of the mounting hole at the entrance of the mounting hole.

[0015] Optionally, an observation window communicating with the mounting hole is formed on the outer wall of the mounting portion.

[0016] Optionally, an anti-slip pattern is formed on the outer side wall of the button key.

[0017] Compared with the prior art, the present application has at least the following beneficial effects:

[0018] The mounting portion is located on the side away from the side for sleeving the first folding portion, and the mounting hole formed thereon is used to accommodate the stylus, and the user can insert the stylus into the mounting hole for fixed storage. The mounting portion is also provided with a restricting member, which can effectively prevent the stylus from accidentally sliding out of the mounting hole in the non-use state, thereby ensuring the safe storage of the stylus. This design enables the stylus and the folding screen device to be integrally stored through the protective cover, overcoming the problems in the prior art that the stylus needs to be carried separately, is easy to lose and inconvenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more intuitively illustrate the prior art and the present application, several exemplary drawings are given below. It should be understood that the specific shapes and structures shown in the drawings generally should not be regarded as limiting conditions when implementing the present application; for example, those skilled in the art are capable of making conventional adjustments or further optimizations to the addition / deletion / attribution division of certain units (components), specific shapes, positional relationships, connection methods, dimensional proportional relationships, etc. based on the technical concept disclosed in the present application and the exemplary drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of a protective cover of a folding screen mobile device provided by an embodiment of the present application;

[0021] Figure 2 is Figure 1 another perspective view of;

[0022] Figure 3Schematic structural diagram of the closed state of a protective case for a foldable screen mobile device provided by an embodiment of the present application;

[0023] Figure 4 Schematic structural diagram of a foldable screen mobile device provided by an embodiment of the present application;

[0024] Figure 5 Schematic structural diagram of a stylus partially protruding in a protective case for a foldable screen mobile device provided by an embodiment of the present application;

[0025] Figure 6 Schematic structural diagram of a stylus fully protruding in a protective case for a foldable screen mobile device provided by an embodiment of the present application;

[0026] Figure 7 Schematic structural diagram of the first protective shell of a protective case for a foldable screen mobile device provided by an embodiment of the present application;

[0027] Figure 8 For Figure 7 Partial cross-sectional view along the a-a direction;

[0028] Figure 9 For Figure 8 Partial structural diagram of;

[0029] Figure 10 For Figure 7 Partial structural diagram of;

[0030] Figure 11 For Figure 10 Enlarged view of part A of;

[0031] Figure 12 Schematic structural diagram of a driving component of a protective case for a foldable screen mobile device provided by an embodiment of the present application;

[0032] Figure 13 Schematic diagram of the cooperation between the driving board and the stylus;

[0033] Figure 14 Schematic structural diagram of the button key.

[0034] Explanation of reference numerals:

[0035] 1. First folding part; 2. Second folding part; 3. Folding hinge; 4. First protective shell; 5. Second protective shell; 6. Central axis protective shell; 7. Installation part; 71. Installation hole; 711. Limiting part; 712. Observation window; 72. Driving component; 721. Button key; 7211. Positioning block; 722. Driving plate; 7221. First plate; 7221a. Connection hole; 7221b. Connection groove; 7222. Second plate; 7222a. Relief groove; 723. Connection part; 7231. First connection plate; 7231a. Limiting part; 7232. Second connection plate; 7232a. Second limiting projection; 73. Driving cavity; 731. Driving groove; 7311. First limiting projection; 732. Positioning groove; 8. Stylus; 81. Tip of the pen. Detailed implementation manners

[0036] In order to make the objectives, technical solutions and advantages of the present application clearer and more understandable, the present application 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 only used to explain the present application and are not used to limit the present application.

[0037] In the description of the present application: Unless otherwise specified, "a plurality of" means two or more. Terms such as "first", "second", "third", etc. in the present application are intended to distinguish the objects being referred to and do not have special significance in terms of technical connotations (for example, they should not be understood as emphasizing the importance or order, etc.). Expressions such as "including", "comprising", "having", etc. also mean "not limited to" (certain units, components, materials, steps, etc.).

[0038] Refer to Figures 1-9 , the present application discloses a protective cover for a folding screen mobile device. The folding screen mobile device includes a first folding part 1 and a second folding part 2 rotatably connected to the first folding part 1 through a folding hinge 3. Both the front and back sides of the second folding part 2 have display screens. The protective cover includes a first protective shell 4 for sleeving the first folding part 1 and an installation part 7 connected to the outer wall of the first protective shell 4. The installation part 7 is provided with an installation hole 71 for accommodating a stylus 8, and the installation part 7 is connected with a limiting part 711 for restricting the stylus 8 from sliding out of the installation hole 71.

[0039] The installation part 7 is located on the side away from the side for sleeving the first folding part 1, and the installation hole 71 opened thereon is used to accommodate the stylus 8. The user can insert the stylus 8 into the installation hole 71 for fixed storage. The installation part 7 is also provided with a limiting part 711, which can effectively prevent the stylus 8 from accidentally sliding out of the installation hole 71 in the non-use state, thereby ensuring the safe storage of the stylus 8. This design enables the stylus 8 to be stored integrally with the folding screen device through the protective cover, overcoming the problems in the prior art that the stylus 8 needs to be carried separately, is easily lost and inconvenient to use.

[0040] It should be noted that the protective cover may further include a second protective shell 5 and a central axis protective shell 6, which have been disclosed in a protective kit for a folding screen mobile device in the prior art (publication number: CN221081362U), and will not be elaborated in this application; the folding screen mobile device is prior art, and the folding screen mobile device includes a folding screen mobile phone. The cooperation mode of the first folding part 1, the second folding part 2 and the folding hinge 3 will not be elaborated in this application.

[0041] In some embodiments, the mounting portion 7 may be integrally formed on the first folding part 1.

[0042] There are multiple limiting members 711, and the multiple limiting members 711 are arranged at intervals along the length extension direction of the mounting hole 71 on the hole wall of the mounting hole 71. The limiting members 711 are damping bumps integrally formed at two opposite positions on the hole wall of the mounting hole 71. The mounting portion 7 is connected with a driving assembly 72 for driving the stylus 8 to slide out of the mounting hole 71.

[0043] A plurality of damping bumps are provided on the hole wall of the mounting hole 71. These bumps are located at two opposite positions on the hole wall and are arranged at intervals along the length extension direction of the mounting hole 71. Each pair of damping bumps generates an appropriate damping force by contacting the surface of the stylus 8, which can effectively stably limit the stylus 8 and prevent it from sliding or falling off easily in the non-use state. The interval arrangement of multiple pairs of damping bumps enables the stylus 8 to have sufficient friction when inserted or pulled out.

[0044] The damping bumps are preferably made of elastic materials such as rubber, which can reduce the wear on the surface of the stylus 8 while providing reliable limitation.

[0045] In some embodiments, the limiting member 711 may also be a limiting ring, and the limiting ring is arranged at a specific position of the mounting hole 71 to limit the stylus 8 by means of radial contraction.

[0046] The driving assembly 72 includes a button key 721 and a driving board 722 connected to the button key 721. The mounting portion 7 is provided with a driving cavity 73 communicating with the entrance of the mounting hole 71 far from the mounting hole 71. The outer wall of the mounting portion 7 is provided with a driving groove 731 communicating with the driving cavity 73. The driving board 722 is arranged in the driving cavity 73, and the driving groove 731 through which the button key 721 passes is arranged on the outer wall of the mounting portion 7. The button key 721 is used to be toggled by a finger so that the driving board 722 can push the stylus 8 to partially extend out of the mounting hole 71 from the entrance of the mounting hole 71.

[0047] When the user's finger pushes the button key 721 in the direction towards the mounting hole 71, the button key 721 drives the connected driving plate 722 to slide within the driving cavity 73. At this time, the driving plate 722 applies pressure to the stylus 8, pushing the stylus 8 to partially protrude from the entrance of the mounting hole 71. The user can easily pinch the protruding part of the stylus 8 and further completely pull out the stylus 8 to achieve the function of convenient access.

[0048] Reference Figures 10-14 , the driving plate 722 is connected to the button key 721 through the connecting portion 723. The connecting portion 723 is located within the driving groove 731, so that the driving plate 722 abuts against the cavity wall of the driving cavity 73 and one side of the button key 721 abuts against the outer wall of the mounting portion 7. The driving plate 722 includes a first plate 7221 connected to the connecting portion 723 and a second plate 7222 integrally formed at one end of the first plate 7221. A relief groove 7222a for avoiding the tip 81 of the stylus 8 is provided at one end of the second plate 7222 close to the mounting hole 71.

[0049] When the user is using it, the tip 81 end of the stylus 8 is oriented towards the mounting hole 71 and inserted. The relief groove 7222a provided at one end of the second plate 7222 can avoid the tip 81 of the stylus 8, thus preventing the direct contact between the tip 81 and the driving plate 722 and preventing the tip 81 from being damaged or affecting the service life of the stylus 8 due to friction. The notch of the relief groove 7222a can abut against the periphery of the tip 81 of the stylus 8, while ensuring that the tip 81 is properly avoided, providing a sufficient support position for the driving plate 722 to push the stylus 8 out.

[0050] The connecting portion 723 includes two first connecting plates 7231 integrally formed on the button key 721 and two second connecting plates 7232 integrally formed on the button key 721. The two first connecting plates 7231 are located on both sides of the button key 721 in the length extension direction, and the two second connecting plates 7232 are located on both sides of the button key 721 in the width extension direction; two connecting holes 7221a for cooperating with the first connecting plates 7231 are provided on the first plate 7221. The two connecting holes 7221a and the two first connecting plates 7231 correspond one by one. A limiting member 7231a for cooperating with the connecting hole 7221a is integrally formed at the end of the first connecting plate 7231 away from the button key 721, so that the limiting member 7231a passes through the connecting hole 7221a and abuts against the side of the first plate 7221 away from the first connecting plate 7231. Two connecting grooves 7221b for cooperating with the second connecting plates 7232 are provided on the first plate 7221, so that the end of the second connecting plate 7232 away from the button key 721 is embedded in the connecting groove 7221b. The two connecting grooves 7221b and the two second connecting plates 7232 correspond one by one.

[0051] The driving board 722 is detachably connected to the button key 721 through the connecting part 723. During the connection process, the user first inserts one end of the two first connecting plates 7231 into the connection hole 7221a of the first board 7221. As the limiting part 7231a of the first connecting plate 7231 passes through the connection hole 7221a (the limiting part 7231a forms an interference fit with the hole wall of the connection hole 7221a), the limiting part 7231a firmly abuts against the side of the first board 7221 away from the first connecting plate 7231. At the same time, one end of the second connecting plate 7232 is embedded into the connection groove 7221b of the first board 7221. Through the cooperation of the limiting part 7231a of the first connecting plate 7231 and the second connecting plate 7232, it is ensured that the driving board 722 is stable and does not shift in the connecting part 723. This design makes the connection between the driving board 722 and the button key 721 both firm and convenient for disassembly and assembly.

[0052] In some embodiments, the first connecting plate 7231 and the second connecting plate 7232 can also be fixedly connected to the first board 7221 to form a fixed structure.

[0053] On one side wall of the driving groove 731, a plurality of first limiting protrusions 7311 are formed at intervals along the length extension direction of the driving groove 731. A second limiting protrusion 7232a that cooperates with the first limiting protrusion 7311 is connected to the side wall of the second connecting plate 7232.

[0054] On one side wall of the driving groove 731, a plurality of first limiting protrusions 7311 are arranged at intervals along the length direction. These protrusions cooperate with the second limiting protrusion 7232a on the side wall of the second connecting plate 7232, so as to generate a certain resistance when the button key 721 slides. When the user operates the button key 721, a gradual damping effect (pushing step by step) can be felt, similar to the sliding mechanism of a wallpaper knife. This design enables the user to more precisely control the sliding of the stylus 8 when pushing the button key 721, avoiding the inconvenience caused by too fast or too slow sliding.

[0055] On the outer wall of the installation part 7, a positioning groove 732 communicating with the driving groove 731 is opened. The positioning groove 732 is located on the side of the driving groove 731 close to the installation hole 71. The length extension direction of the positioning groove 732 is parallel to the length extension direction of the installation hole 71. The button key 721 is connected with a positioning block 7211 for being embedded in the positioning groove 732.

[0056] The positioning block 7211 can effectively prevent the button key 721 from shaking or shifting during the sliding process, ensuring its stable sliding along the straight line direction of the driving groove 731. This structure reduces the component wear caused by shaking and extends the service life of the device.

[0057] At the entrance of the mounting hole 71, a limiting step for restricting the stylus 8 from sliding out of the mounting hole 71 is integrally formed on the hole wall of the mounting hole 71.

[0058] The limiting step has a certain blocking effect on the stylus 8, preventing the stylus 8 from accidentally sliding out in the non-operating state. On the premise of not affecting the normal insertion and extraction of the stylus 8, the limiting step effectively avoids the stylus 8 from automatically sliding out due to vibration or tilting during use by providing appropriate resistance when the stylus 8 slides to the outlet of the mounting hole 71.

[0059] An observation window 712 communicating with the mounting hole 71 is formed on the outer wall of the mounting portion 7.

[0060] Through this observation window 712, the user can clearly see the position and state of the stylus 8 during the insertion and extraction processes. Especially when pushing in the stylus 8, the user can intuitively adjust the posture of the stylus 8 through the observation window 712 to ensure that the tip 81 does not come into unnecessary contact with the hole wall of the mounting hole 71 during insertion, thereby effectively avoiding damage to the tip 81. In addition, the position design of the observation window 712 in cooperation with the relief groove 7222a makes it easier for the user to align the tip 81 with the relief groove 7222a, improving the smoothness of the insertion of the stylus 8. The observation window 712 reduces the overall weight of the protective cover to a certain extent.

[0061] An anti-slip pattern is formed on the outer side wall of the button key 721.

[0062] The technical features of the above embodiments can be combined arbitrarily (as long as there is no contradiction in the combination of these technical features). For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described; these embodiments that are not explicitly written out should also be considered to be within the scope described in this specification.

[0063] In the above, the present application has been described in a relatively specific and detailed manner through general descriptions and specific embodiments. It should be understood that based on the technical concept of the present application, several conventional adjustments or further innovations can be made to these specific embodiments; but as long as they do not depart from the technical concept of the present application, the technical solutions obtained by these conventional adjustments or further innovations also fall within the protection scope of the claims of the present application.

Claims

1. A protective cover for a foldable screen mobile device, the foldable screen mobile device comprising a first foldable portion and a second foldable portion rotatably connected to the first foldable portion through a foldable hinge, the second foldable portion having display screens on both sides thereof, characterized in that: The protective cover comprises a first protective shell for sleeved on the first folding portion and a mounting portion connected to the outer wall of the first protective shell, the mounting portion is provided with a mounting hole for accommodating a stylus pen, and the mounting portion is connected to a limiting member for limiting the stylus pen from sliding out of the mounting hole.

2. The protective cover according to claim 1, characterized in that: There are multiple limiting members, which are spaced apart on the hole wall of the mounting hole along the length extension direction of the mounting hole. The limiting members are damping protrusions integrally formed at two relative positions on the hole wall of the mounting hole. The mounting portion is connected to a driving component for driving the stylus to slide out of the mounting hole.

3. The protective cover according to claim 2, characterized in that: The driving assembly includes a button key and a driving plate connected to the button key; the mounting portion is provided with a driving cavity connected to the mounting hole and away from the entrance of the mounting hole; the outer wall of the mounting portion is provided with a driving groove connected to the driving cavity; the driving plate is arranged in the driving cavity; the button key passes through the driving groove and is arranged on the outer wall of the mounting portion; the button key is used to be moved by a finger so that the driving plate pushes the stylus pen to partially extend out of the mounting hole from the entrance of the mounting hole.

4. The protective cover according to claim 3, characterized in that: The driving board is connected to the button key via a connecting portion, and the connecting portion is located in the driving groove so that the driving board abuts against the cavity wall of the driving cavity and one side of the button key abuts against the outer wall of the mounting portion. The driving board includes a first plate connected to the connecting portion and a second plate integrally formed at one end of the first plate, and a clearance groove for avoiding the tip of the stylus pen is provided at one end of the second plate close to the mounting hole.

5. The protective cover according to claim 4, characterized in that: The connecting portion includes two first connecting plates integrally formed with the button key and two second connecting plates integrally formed with the button key, the two first connecting plates are located on both sides of the length extension direction of the button key, and the two second connecting plates are located on both sides of the width extension direction of the button key; The first plate is provided with two connecting holes for cooperating with the first connecting plate, and the two connecting holes correspond to the two first connecting plates one by one. A limiting piece cooperating with the connecting hole is integrally formed at one end of the first connecting plate away from the button key, so that the limiting piece passes through the connecting hole and abuts against the side of the first plate away from the first connecting plate. The first plate is provided with two connecting grooves for cooperating with the second connecting plate, so that one end of the second connecting plate away from the button key is embedded in the connecting groove, and the two connecting grooves correspond to the two second connecting plates one by one.

6. The protective cover according to claim 5, characterized in that: A groove wall on one side of the driving groove is formed with a plurality of first limiting protrusions arranged at intervals along the length extension direction of the driving groove, and a second limiting protrusion matching the first limiting protrusion is connected to the side wall of the second connecting plate.

7. The protective cover according to claim 3, characterized in that: The outer wall of the mounting portion is provided with a positioning groove connected to the driving groove, the positioning groove is located on a side of the driving groove close to the mounting hole, the length extension direction of the positioning groove is parallel to the length extension direction of the mounting hole, and the button key is connected with a positioning block for being embedded in the positioning groove.

8. The protective cover according to claim 1, characterized in that: A limiting step for limiting the stylus from sliding out of the mounting hole is integrally formed on the hole wall of the mounting hole at the entrance of the mounting hole.

9. The protective cover according to claim 1 or 4, characterized in that: An observation window communicating with the mounting hole is provided on the outer wall of the mounting portion.

10. The protective cover according to claim 3, characterized in that: The outer side wall of the button key is formed with anti-slip grooves.

Citation Information

Patent Citations

  • Protective kit of folding screen mobile device

    CN221081362U