A folding screen mobile phone shell

Abstract

The utility model provides a kind of folding screen with cell phone shell, it is related to cell phone shell technical field, including the first frame and second frame for being set to the outside of mobile phone, one side of the first frame is equipped with first opening end, the second frame is equipped with the second opening end opposite to first opening end, folding groove is formed between the first opening end and the second opening end, the first opening end is equipped with inserting slot, the second opening end is connected with flexible bending part, the first end of the flexible bending part is equipped with the inserting projection of inserting inserting slot. It can realize the stable connection of upper and lower shell to prevent falling off, and it is convenient to replace local components to facilitate maintenance.

Description

Technical Field

[0001] This utility model relates to the field of mobile phone case technology, specifically to a foldable screen mobile phone case. Background Technology

[0002] As people's quality of life improves, smartphones have brought convenience to people's lives and have become an indispensable part of daily life. Among them, with the continuous development of technology, the emergence of a new type of smartphone—the foldable screen phone—has enriched the product range of the smartphone market. Its biggest feature is that the screen can be folded. Compared with traditional phones, foldable screen phones can be unfolded into a larger screen when in use to provide a better visual experience, and can be folded up for easy carrying when not in use.

[0003] Currently, there are two main technical approaches to foldable phone cases: separate designs and integrated designs. While separate designs avoid interfering with the phone's folding structure, the lack of physical connection between the upper and lower shells poses a risk of detachment. Especially in scenarios involving frequent opening and closing or accidental impacts, a single shell can easily separate from the phone, leading to loss of protective functions or even component loss. Integrated designs, while maintaining integrity through soft adhesive connecting ribs, introduce new drawbacks. Integrated structures cannot be partially replaced, making maintenance inconvenient. If the connecting ribs are damaged, the entire shell must be discarded, increasing usage costs.

[0004] Therefore, this utility model proposes a phone case for foldable screens. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model proposes a foldable screen phone case that can not only achieve a stable connection between the upper and lower shells to prevent them from falling off, but also facilitate the replacement of some parts for easy maintenance.

[0006] The technical solution of this utility model is implemented as follows:

[0007] A foldable screen phone case includes a first frame and a second frame for fitting over a phone. The first frame has a first opening on one side, and the second frame has a second opening facing the first opening. A folding groove is formed between the first opening and the second opening. The first opening has an insertion groove, and the second opening is connected to a flexible bending part. The first end of the flexible bending part has an insertion protrusion for inserting into the insertion groove.

[0008] Preferably, the flexible bending portion has a connecting rib for connecting the insertion protrusion and a hollow groove communicating with the folding groove in the middle.

[0009] Preferably, the head of the insertion protrusion is provided with a protrusion.

[0010] Preferably, one side wall of the insertion slot has an insertion interface, and the other side wall has a rounded slope.

[0011] Preferably, the inner wall of the insertion slot on the side with the opening is provided with a limiting block facing the arc slope, and the protrusion of the insertion protrusion abuts against the top of the limiting block after being inserted into the insertion interface.

[0012] Preferably, the first or second frame is provided with a camera mounting slot; a back panel is installed inside the first and second frames.

[0013] Preferably, the back panel is made of rigid PC rubber, and the first and second frames are made of soft TPU rubber.

[0014] Preferably, one of the back plates of the first and second frames is provided with a ring groove for mounting a magnetic ring.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This solution utilizes a physical plug-in structure to achieve a stable connection between the upper and lower shells by setting plug-in slots and flexible bending sections with plug-in protrusions at the opening ends of the first and second frame sides, effectively overcoming the risk of easy detachment in split designs. Simultaneously, the plug-in design is detachable, allowing for individual replacement of damaged frame or back panel components, solving the problems of inconvenient maintenance and overall scrapping associated with traditional unibody structures. Furthermore, the hollowed-out slots in the flexible bending sections enhance the deformation adaptability of the folding area. Combined with the composite material of TPU soft rubber frame and PC hard rubber back panel, it ensures both impact resistance and folding durability, ultimately achieving a dual breakthrough in connection reliability and modular maintenance convenience. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a three-dimensional structural diagram of a foldable screen phone case according to the present invention;

[0019] Figure 2 This is an enlarged schematic diagram of the first opening end;

[0020] Figure 3 This is an enlarged schematic diagram of the second opening end;

[0021] Reference numerals in the attached diagram: 1-First frame; 11-First opening end; 12-Insertion groove; 13-Insertion interface; 14-Circular slope; 15-Limiting block; 2-Second frame; 21-Second opening end; 22-Flexible bending part; 23-Insertion protrusion; 231-Protrusion; 24-Connecting rib; 25-Hollow groove; 3-Folding groove; 4-Camera mounting groove; 5-Back plate; 51-Annular groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] This embodiment proposes a protective case specifically designed for foldable screen phones, such as... Figure 1 , Figure 2 and Figure 3As shown, the protective case mainly includes a first frame 1 and a second frame 2 fitted over the main body of the foldable screen phone. One side of the first frame 1 has a first opening end 11, and the corresponding side of the second frame 2 has a second opening end 21 arranged facing the first opening end 11. A folding groove 3 naturally forms between the first opening end 11 and the second opening end 21 to accommodate the folding area of ​​the phone. To achieve a reliable connection and movable fit between the two frames, the first opening end 11 has an insertion groove 12, and the second opening end 21 is integrally formed or fixedly connected to a flexible bending part 22. The end of the flexible bending part 22 has an insertion protrusion 23 that can be inserted into the insertion groove 12.

[0026] In this embodiment, as Figure 3 As shown, to optimize folding performance and ensure connection strength, the central region of the flexible bending section 22 is finely designed with connecting ribs 24 for connecting the insertion protrusions 23 and hollow grooves 25 that communicate with the folding grooves 3. The connecting ribs 24 provide necessary support and force transmission paths, while the hollow grooves 25 significantly improve the flexibility and deformation freedom of this region, effectively reducing stress concentration and fatigue risk during repeated bending.

[0027] In this embodiment, as Figure 3 As shown, in order to further enhance the connection stability after plugging and prevent accidental dislodgement, the end of the plugging protrusion 23 is provided with an outward protrusion 231.

[0028] In this embodiment, as Figure 3 As shown, to facilitate the guidance and positioning of the insertion protrusion 23, one inner wall of the insertion groove 12 is provided with an insertion interface 13 that matches the shape of the protrusion 231, while the opposite side wall is provided with a smoothly transitioning arc slope 14. The design of the arc slope 14 helps the insertion protrusion 23 to slide smoothly into the insertion groove 12 and provides smooth rotation guidance during folding.

[0029] In this embodiment, as Figure 2 As shown, to ensure a reliable mechanical lock after insertion, a limiting block 15 extending towards the arc slope 14 is fixedly provided on the inner wall of the insertion groove 12 adjacent to the insertion interface 13. When the protrusion 231 of the insertion protrusion 23 is precisely inserted into the insertion interface 13, the upper surface (or specific structural surface) of the protrusion 231 will abut against the bottom surface (top) of the limiting block 15, thereby forming an axial limit and effectively preventing the connection from loosening due to external force or vibration.

[0030] In this embodiment, considering functional requirements, the first frame 1 or the second frame 2 is provided with a camera mounting slot 4 to avoid obstructing the mobile phone camera; at the same time, a back plate 5 is installed on the inner side of the first frame 1 and the second frame 2 to provide back support and protection. The camera mounting slot 4 ensures unobstructed use of the mobile phone camera function.

[0031] In this embodiment, a composite material design is adopted to address the performance requirements of different areas of the protective shell: the back plate 5 is preferably made of PC (polycarbonate) hard plastic injection molding, which has excellent rigidity, impact resistance, and dimensional stability; while the first frame 1 and the second frame 2 are preferably made of TPU (thermoplastic polyurethane) soft plastic injection molding, which has good flexibility, bending resistance, and shock absorption properties. This material combination cleverly balances the folding flexibility required by the frame with the support and protective strength required by the back plate.

[0032] In this embodiment, to expand the accessory compatibility of the phone case, such as supporting magnetic stands or chargers, the upper surface of one of the back plates 5 of the first frame 1 and the second frame 2 is provided with a groove 51 for embedding a magnetic ring. The magnetic ring can be firmly embedded in the groove 51, providing a stable magnetic force.

[0033] Working Principle: The core of this solution lies in the innovative use of precisely fitted insertion slots 12 and flexible bending portions 22 integrating insertion protrusions 23 at the opening ends of the first frame 1 and the second frame 2, respectively, to construct a highly efficient mechanical interlocking connection mechanism. This mechanism utilizes the physical cooperation and locking between the insertion protrusions 23 (especially their protrusions 231) and the insertion slots 12 (and their limiting blocks 15, insertion interfaces 13, and arc slopes 14) to achieve a stable connection between the upper and lower shells, significantly improving connection reliability and effectively overcoming the risk of easy detachment in traditional split designs. Simultaneously, thanks to the inherent characteristics of the insertion design, it possesses convenient detachability, allowing users or maintenance personnel to easily separate the two frames and individually replace damaged frames or back panel 5 components, greatly improving maintenance convenience and completely solving the resource waste problem of inconvenient maintenance and partial damage leading to overall scrapping in traditional integrated structures. Furthermore, the carefully designed hollowed-out groove 25 structure in the flexible bending portion 22 effectively enhances the deformation adaptability and stress dispersion capability of the folding area, significantly improving bending life. By combining a TPU soft rubber frame (providing flexible cushioning) with a PC hard rubber backplate (providing rigid support), this protective case achieves an optimized balance in physical performance: ensuring overall impact resistance while crucially prioritizing high durability in key folding areas. In summary, this solution ultimately achieves a dual breakthrough in meeting the fundamental requirements of reliable connection while enhancing the user experience through modular maintenance convenience.

[0034] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A foldable screen phone case, characterized in that: It includes a first frame (1) and a second frame (2) for fitting around a mobile phone. The first frame (1) has a first opening end (11) on one side, and the second frame (2) has a second opening end (21) facing the first opening end (11). A folding groove (3) is formed between the first opening end (11) and the second opening end (21). The first opening end (11) has an insertion groove (12), and the second opening end (21) is connected to a flexible bending part (22). The first end of the flexible bending part (22) has an insertion protrusion (23) for inserting into the insertion groove (12).

2. The foldable screen phone case according to claim 1, characterized in that: The flexible bending part (22) is provided with a connecting rib (24) for connecting the insertion protrusion (23) and a hollow groove (25) communicating with the folding groove (3) in the middle.

3. A foldable screen phone case according to claim 2, characterized in that: The head of the insertion protrusion (23) is provided with a protrusion (231).

4. A foldable screen phone case according to claim 3, characterized in that: The insertion slot (12) has an insertion interface (13) on one side wall and an arc slope (14) on the other side wall.

5. A foldable screen phone case according to claim 4, characterized in that: The insertion slot (12) has a limiting block (15) on the inner wall of the side with the insertion interface (13) facing the arc slope (14). The protrusion (231) of the insertion protrusion (23) is inserted into the insertion interface (13) and abuts against the top of the limiting block (15).

6. A foldable screen phone case according to claim 1, characterized in that: The first frame (1) or the second frame (2) is provided with a camera mounting slot (4); a back plate (5) is installed in the first frame (1) and the second frame (2).

7. A foldable screen phone case according to claim 6, characterized in that: The back panel (5) is made of PC hard plastic, and the first frame (1) and the second frame (2) are made of TPU soft plastic.

8. A foldable screen phone case according to claim 6, characterized in that: The first frame (1) and the second frame (2) have a ring groove (51) on one of the back plates (5) for mounting a magnetic ring.

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