Folding mobile phone shell

By introducing a design that connects the housing and a torsion spring into the folding phone case, automatic fastening is achieved, solving the problem of the inability to automatically fasten in existing technologies and improving the user experience.

CN224083574UActive Publication Date: 2026-04-03SHENZHEN TESHILUN TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

Existing folding phone cases cannot achieve automatic snap-fit, failing to meet the diverse needs of folding screen phone users and reducing the user experience.

Method used

A folding phone case has been designed, including a first shell, a connecting shell, a torsion spring, and a second shell. The automatic snap-fit ​​function is achieved through the cooperation of the hinge and the torsion spring. The elastic restoring force of the torsion spring provides power to make the shell automatically close and snap together.

Benefits of technology

It improves ease of use, meets users' needs for fast and automated operation, and enhances the user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mobile phone shells, in particular to a folding mobile phone shell. Comprising a first shell, a connecting shell, a torsion spring and a second shell, and the first shell is used for sleeving the back surface of a first part of the folding mobile phone; the connecting shell is arranged on one side of the first shell, a first hinge part is arranged on the connecting shell, the connecting shell is hinged to the first shell through the first hinge part, a containing groove is formed in the first hinge part, and a positioning hole is formed in the bottom of the containing groove; the torsion spring comprises a first torsion arm, a spring coil and a second torsion arm which are connected with one another, the first torsion arm is connected with the first shell, the spring coil is arranged in the containing groove, and the second torsion arm is inserted into the positioning hole; the second shell is located on one side of the first shell and used for being arranged on the back face of the second part of the folding mobile phone in a sleeving mode. Compared with a manual buckling mode in the prior art, the mobile phone shell provided by the utility model has the advantages that the use convenience is greatly improved, the requirement of a user for quickly and automatically operating the mobile phone shell is met, and the user experience is effectively improved.
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Description

Technical Field

[0001] This utility model relates to the field of mobile phone case technology, and in particular to a folding mobile phone case. Background Technology

[0002] With the rapid development of smartphone technology, foldable screen phones have gradually become a new favorite in the market. Their unique foldable design brings users a brand-new user experience and the advantage of a larger screen display.

[0003] Existing folding phone cases consist of two parts, which are fitted onto the two parts of the phone respectively. Users need to manually snap the two parts of the phone case together to fold the phone. The case cannot be automatically snapped together, which cannot meet the diverse needs of folding screen phone users and thus reduces the user experience. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is to provide a folding phone case to solve the problem that the existing technology cannot achieve automatic snap-fit ​​of folding phone cases, which cannot meet the diverse needs of folding screen phone users and thus reduces the user experience.

[0005] This utility model discloses a folding phone case, comprising: a first housing, a connecting housing, a torsion spring, and a second housing. The first housing is used to fit onto the back of a first part of the folding phone. The connecting housing is located on one side of the first housing, and has a first hinge portion, which is hinged to the first housing. A receiving groove is formed on the first hinge portion, and a positioning hole is formed at the bottom of the receiving groove. The torsion spring includes a first torsion arm, a spring coil, and a second torsion arm connected to each other. The first torsion arm is connected to the first housing, the spring coil is located in the receiving groove, and the second torsion arm is inserted into the positioning hole. The second housing is located on one side of the first housing and is used to fit onto the back of a second part of the folding phone.

[0006] Optionally, a collar is formed at the end of the first torsion arm, and a positioning protrusion is provided on the first housing, with the collar sleeved on the positioning protrusion.

[0007] Optionally, a first mounting groove is formed on the first housing, a first mounting shaft is provided on the first mounting groove, a mounting hole is formed on the first hinge portion, and the first hinge portion is sleeved on the first mounting shaft through the mounting hole; the bottom of the receiving groove communicates with the mounting hole, and the positioning hole is located on one side of the mounting hole.

[0008] Optionally, a second mounting groove is formed on the first housing, the second mounting groove is located on one side of the first mounting groove and communicates with the first mounting groove, and the positioning protrusion is provided on the second mounting groove.

[0009] Optionally, there are two of each of the first mounting slot, the first hinge, and the torsion spring, with the two first mounting slots spaced apart on the first housing.

[0010] Optionally, the receiving groove of one of the first hinge portions is located on the side opposite to the receiving groove of the other first hinge portion.

[0011] Optionally, a support plate is provided on the back of the first housing, and the support plate is hinged to the first housing.

[0012] Optionally, a receiving groove is formed on the back of the first housing, and the support plate is disposed in the receiving groove, with the surface of the support plate being flush with the surface of the first housing.

[0013] Optionally, a third mounting groove is formed at one end of the receiving groove near the connecting housing, a second mounting shaft is provided on the third mounting groove, a connector is provided in the receiving groove, the connector includes a second hinge part and a connecting plate that are connected to each other, the second hinge part is located in the third mounting groove and sleeved on the second mounting shaft, and the connecting plate is fixedly connected to the support plate.

[0014] Optionally, a cover plate is provided inside the first housing to cover the positioning protrusion and the third mounting groove.

[0015] Compared with the prior art, the beneficial effects of the folding phone case provided by this utility model embodiment are as follows: the first shell and the second shell are respectively used to cover the back of the first part and the back of the second part of the folding phone, playing a role in protecting the folding phone. At the same time, the folding phone case of this embodiment also includes a connecting shell and a torsion spring. The connecting shell is hinged to the first shell through a hinge part. The connecting shell is set to protect the folded part when the phone is in the folded state. The first torsion arm of the torsion spring is connected to the first shell. The receiving groove and the positioning hole provide a stable setting environment for the spring ring and the second torsion arm, respectively. The spring ring is set in the receiving groove, and the second torsion arm is inserted into the positioning hole. The torsion force of the torsion spring can act on the first shell and the connecting shell, providing a power basis for the automatic snapping of the folding phone case. When the phone is unfolded, the torsion spring undergoes elastic deformation. When the phone needs to be folded, the user only needs to apply a driving force to the first shell. Under the action of the elastic restoring force of the torsion spring, the first shell and the second shell automatically approach and snap together. Compared with the manual snapping method in the prior art, it greatly improves the convenience of use, meets the user's need for a fast and automatic operation of the phone case, and effectively improves the user experience. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0017] Figure 1 This is a side view of the folding phone case provided in this embodiment of the present invention when it is in the unfolded state;

[0018] Figure 2 This is a schematic diagram of the overall structure of the folding phone case provided in this embodiment of the present invention when it is in the unfolded state;

[0019] Figure 3 This is a schematic diagram of the structure of the first housing and the connecting housing provided in an embodiment of the present utility model;

[0020] Figure 4 This is an exploded view of the first housing and the connecting housing provided in an embodiment of the present invention;

[0021] Figure 5 yes Figure 4 A magnified view of a section at point A;

[0022] Figure 6 This is a schematic diagram of the structure of the first housing and torsion spring provided in an embodiment of the present invention;

[0023] Figure 7 This is a schematic diagram of the connecting shell provided in an embodiment of the present utility model;

[0024] Figure 8 This is a side view of the folding phone case provided in this embodiment of the present invention when it is in the folded state;

[0025] Figure 9 This is a schematic diagram of the overall structure of the folding phone case provided in this embodiment of the present invention when it is in the folded state;

[0026] Figure 10 This is an exploded view of the first housing and connecting plate provided in an embodiment of this utility model.

[0027] The labels for the attached figures are as follows:

[0028] 10. First housing; 110. Positioning protrusion; 101. First mounting groove; 120. First mounting shaft; 102. Second mounting groove; 103. Receiving groove; 104. Third mounting groove; 130. Second mounting shaft; 140. Cover plate; 20. Connecting housing; 210. First hinge; 2101. Receiving groove; 2102. Positioning hole; 2103. Mounting hole; 30. Torsion spring; 310. First torsion arm; 311. Collar; 320. Spring ring; 330. Second torsion arm; 40. Second housing; 50. Support plate; 60. Connector; 610. Second hinge; 620. Connecting plate; 70. Folding phone; 710. First part; 720. Second part. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0030] This utility model embodiment provides a folding phone case, such as Figures 1 to 9 As shown, the device includes a first housing 10, a connecting housing 20, a torsion spring 30, and a second housing 40. The first housing 10 is used to fit onto the back of the first part 710 of the folding phone 70. The connecting housing 20 is located on one side of the first housing 10 and has a first hinge portion 210, which is hinged to the first housing 10. The first hinge portion 210 has a receiving groove 2101, and the bottom of the receiving groove 2101 has a positioning hole 2102. The torsion spring 30 includes a first torsion arm 310, a spring coil 320, and a second torsion arm 330 connected to each other. The first torsion arm 310 is connected to the first housing 10, the spring coil 320 is located in the receiving groove 2101, and the second torsion arm 330 is inserted into the positioning hole 2102. The second housing 40 is located on one side of the first housing 10 and is used to fit onto the back of the second part 720 of the folding phone 70.

[0031] In this embodiment, the first housing 10 and the second housing 40 are respectively fitted onto the back of the first part 710 and the back of the second part 720 of the folding phone 70, serving to protect the folding phone 70. The folding phone case in this embodiment also includes a connecting housing 20 and a torsion spring 30. The connecting housing 20 is hinged to the first housing 10 via a first hinge portion 210. The connecting housing 20 is designed to protect the folded portion of the phone when it is folded. The first torsion arm 310 of the torsion spring 30 is connected to the first housing 10. The receiving groove 2101 and the positioning hole 2102 provide a stable setting environment for the spring coil 320 and the second torsion arm 330, respectively, and improve the compactness of the folding phone case. The spring coil 320 is located in the receiving groove 2101, and the second torsion arm 330 is inserted into the positioning hole 2102. The torque of the torsion spring 30 can act on the first housing 10 and the connecting housing 20, providing a power basis for the automatic snap-fit ​​of the folding phone case. When the phone is unfolded, the torsion spring 30 undergoes elastic deformation. When the phone needs to be folded, the user only needs to apply a driving force to the first housing 10. Under the action of the elastic restoring force of the torsion spring 30, the first housing 10 and the second housing 40 automatically approach and snap together. Compared with the manual snap-fit ​​method in the prior art, this greatly improves the convenience of use, meets the user's demand for fast and automatic operation of the folding phone case, and effectively enhances the user experience.

[0032] In this embodiment, the second housing 40 and the first housing 10 are separate structures. When in use, they are respectively fitted onto the first part 710 and the second part 720 of the folding phone, thereby protecting the folding phone 70.

[0033] As a preferred embodiment, refer to Figure 4 and Figure 5 The end of the first torsion arm 310 is formed with a collar 311, and the first housing 10 is provided with a positioning protrusion 110, and the collar 311 is sleeved on the positioning protrusion 110.

[0034] The first torsion arm 310 is fixedly connected to the first housing 10 by the cooperation of the collar 311 and the positioning protrusion 110. This connection makes the torsion spring 30 more stable during installation, less prone to displacement or detachment, and ensures that the torsion spring 30 can continuously and stably perform the automatic locking function during long-term use. At the same time, this connection method is easy to install and disassemble, and facilitates assembly during the manufacturing process as well as maintenance or replacement of the torsion spring 30 in the later stage.

[0035] As a preferred embodiment, refer to Figures 4 to 7 A first mounting groove 101 is formed on the first housing 10, and a first mounting shaft 120 is provided on the first mounting groove 101. A mounting hole 2103 is formed on the first hinge portion 210, and the first hinge portion 210 is sleeved on the first mounting shaft 120 through the mounting hole 2103. The bottom of the receiving groove 2101 communicates with the mounting hole 2103, and the positioning hole 2102 is located on one side of the mounting hole 2103.

[0036] The first mounting groove 101 on the first housing 10 is fitted with a first mounting shaft 120. The first hinge portion 210 of the connecting housing 20 is fitted onto the first mounting shaft 120 through the mounting hole 2103, forming a stable hinge connection. This ensures smooth rotation of the first housing 10 and the connecting housing 20 during folding and unfolding. Simultaneously, the bottom of the receiving groove 2101 communicates with the mounting hole 2103, and the positioning hole 2102 is located on one side of the mounting hole 2103. This layout provides reasonable space for the installation of the torsion spring 30, allowing the spring coil 320 of the torsion spring 30 to be accurately placed in the receiving groove 2101, and the second torsion arm 330 to be precisely inserted into the positioning hole 2102. This ensures the accuracy and stability of the torsion spring 30's installation position, thereby guaranteeing the reliability of the automatic locking function.

[0037] As a preferred embodiment, refer to Figure 5 A second mounting groove 102 is formed on the first housing 10. The second mounting groove 102 is located on one side of the first mounting groove 101 and communicates with the first mounting groove 101. A positioning protrusion 110 is provided on the second mounting groove 102.

[0038] The first housing 10 is provided with a second mounting groove 102, which is located on one side of the first mounting groove 101 and communicates with it. The positioning protrusion 110 is provided on the second mounting groove 102. The second mounting groove 102 provides a suitable mounting position for the positioning protrusion 110. At the same time, the design of communicating with the first mounting groove 101 makes the entire structure more rational in terms of space utilization, which helps to achieve effective layout of various components within the limited space of the folding phone case.

[0039] As a preferred embodiment, refer to Figure 3 , Figure 4 and Figure 6 The number of first mounting slots 101, first hinge parts 210 and torsion springs 30 are all provided in twos, and the two first mounting slots 101 are spaced apart on the first housing 10.

[0040] Specifically, two of each of the first mounting slot 101, the first hinge portion 210, and the torsion spring 30 are provided, with the first mounting slot 101 spaced apart on the first housing 10. This makes the hinge connection between the first housing 10 and the connecting housing 20 more stable. During the folding process of the phone case, the two first hinge portions 210 and the torsion spring 30 can provide a more balanced force, avoiding folding jams or loose fastening caused by uneven force on one side, thereby further improving the user experience.

[0041] As a preferred embodiment, refer to Figure 4 The receiving groove 2101 of one first hinge portion 210 is located on the side opposite to the receiving groove 2101 of the other first hinge portion 210.

[0042] The defined accommodating groove 2101 determines the placement of the torsion spring 30 on the first hinge portion 210. This layout further optimizes the installation space and force distribution of the torsion spring 30. The torque generated by the torsion spring 30 during operation can be applied more evenly between the first housing 10 and the connecting housing 20, improving the smoothness of the automatic snap-fit ​​of the phone case and enhancing the user experience. At the same time, this layout also helps to rationally arrange the components within a limited space, improving the compactness and stability of the folding phone case structure.

[0043] As a preferred embodiment, refer to Figure 10 A support plate 50 is provided on the back of the first housing 10, and the support plate 50 is hinged to the first housing 10.

[0044] A support plate 50, hinged to the back of the first housing 10, provides support for the foldable phone 70 when placed on a flat surface such as a table for video viewing or video calls. The support plate 50 can be unfolded and used as a stand, meeting diverse usage needs. Compared to existing technologies, this design significantly improves the ease of use of the foldable phone 70, eliminating the need for additional stands and allowing users to easily prop up the phone anytime, anywhere, further enhancing the user experience.

[0045] As a preferred embodiment, refer to Figure 10 The back of the first housing 10 has a receiving groove 103, and the support plate 50 is disposed in the receiving groove 103. The surface of the support plate 50 is flush with the surface of the first housing 10.

[0046] The first housing 10 has a receiving groove 103 on its back. The support plate 50 is disposed within the receiving groove 103 and its surface is flush with the surface of the first housing 10. The design of the receiving groove 103 cleverly solves the problem of storing the support plate 50 when not in use. When the support plate 50 is folded up, it can be completely accommodated within the receiving groove 103 without affecting the overall appearance and use of the phone case. This keeps the surface of the phone case flat and smooth, which is both aesthetically pleasing and prevents the folding phone 70 from being unstable or scratching other items due to the protruding support plate 50. At the same time, it also protects the support plate 50 from damage during daily use and extends its service life.

[0047] As a preferred embodiment, refer to Figure 10 A third mounting groove 104 is formed in the receiving groove 103 near the end of the connecting housing 20. A second mounting shaft 130 is provided on the third mounting groove 104. A connector 60 is provided in the receiving groove 103. The connector 60 includes a second hinge part 610 and a connecting plate 620 that are connected to each other. The second hinge part 610 is located in the third mounting groove 104 and is sleeved on the second mounting shaft 130. The connecting plate 620 is fixedly connected to the support plate 50.

[0048] The receiving groove 103 has a third mounting groove 104 formed near the connecting housing 20, and a second mounting shaft 130 is provided on the third mounting groove 104. The support plate 50 is hinged to the first housing 10 through the second hinge part 610 of the connector 60 and the connecting plate 620. During use, the second hinge part 610 is sleeved on the second mounting shaft 130, and the support plate 50 can rotate flexibly around the second mounting shaft 130 to switch between the unfolded and retracted positions. At the same time, the receiving groove 103 has a third mounting groove 104 formed near the connecting housing 20. When the support plate 50 is unfolded to a certain angle, it can abut against the side wall of the third mounting groove 104, thereby ensuring the stability of the support plate 50 during support and ensuring the user's user experience.

[0049] As a preferred embodiment, refer to Figure 3 and Figure 4 A cover plate 140 is provided inside the first housing 10, which is used to cover the positioning protrusion 110 and the third mounting groove 104.

[0050] The cover plate 140 can protect the collar 311 set on the positioning protrusion 110 and the second hinge part 610 set on the third mounting groove 104, and also serves an aesthetic purpose.

[0051] Reference Figure 10 There are two third mounting slots 104 and two connectors 60, with the two third mounting slots 104 spaced apart in the receiving slot 103.

[0052] By setting two third mounting slots 104 and two connectors 60, spaced apart within the receiving slot 103, two corresponding connecting plates 620 are also set, further enhancing the connection stability between the support plate 50 and the first housing 10. Simultaneously, this improves the balance of the support plate 50 during rotation, making its unfolding and retraction operations smoother and providing a better user experience.

[0053] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A folding phone case, characterized in that, include: The first housing is used to fit over the back of the first part of the folding phone; A connecting housing is provided on one side of the first housing. The connecting housing is provided with a first hinge portion and is hinged to the first housing through the first hinge portion. A receiving groove is formed on the first hinge portion, and a positioning hole is formed at the bottom of the receiving groove. A torsion spring includes a first torsion arm, a spring coil, and a second torsion arm connected to each other. The first torsion arm is connected to the first housing. The spring coil is disposed in the receiving groove. The second torsion arm is inserted into the positioning hole. The second housing, located on one side of the first housing, is used to fit over the back of the second part of the folding phone.

2. The folding phone case according to claim 1, characterized in that, The first torsion arm has a collar at its end, and the first housing has a positioning protrusion, with the collar fitted onto the positioning protrusion.

3. The folding phone case according to claim 2, characterized in that, The first housing has a first mounting groove, a first mounting shaft is provided on the first mounting groove, a mounting hole is formed on the first hinge, and the first hinge is sleeved on the first mounting shaft through the mounting hole; the bottom of the receiving groove communicates with the mounting hole, and the positioning hole is located on one side of the mounting hole.

4. The folding phone case according to claim 3, characterized in that, A second mounting groove is formed on the first housing, the second mounting groove is located on one side of the first mounting groove and communicates with the first mounting groove, and the positioning protrusion is provided on the second mounting groove.

5. The folding phone case according to claim 4, characterized in that, The first mounting slot, the first hinge, and the torsion spring are all provided in twos, with the two first mounting slots spaced apart on the first housing.

6. The folding phone case according to claim 5, characterized in that, The receiving groove of one of the first hinge portions is located on the side opposite to the receiving groove of the other first hinge portion.

7. The folding phone case according to any one of claims 2 to 6, characterized in that, A support plate is provided on the back of the first housing, and the support plate is hinged to the first housing.

8. The folding phone case according to claim 7, characterized in that, The back of the first housing has a receiving groove, and the support plate is disposed in the receiving groove, with the surface of the support plate being flush with the surface of the first housing.

9. The folding phone case according to claim 8, characterized in that, A third mounting groove is formed at one end of the receiving groove near the connecting housing. A second mounting shaft is provided on the third mounting groove. A connector is provided in the receiving groove. The connector includes a second hinge part and a connecting plate that are connected to each other. The second hinge part is located in the third mounting groove and is sleeved on the second mounting shaft. The connecting plate is fixedly connected to the support plate.

10. The folding phone case according to claim 9, characterized in that, The first housing is provided with a cover plate, which is used to cover the positioning protrusion and the third mounting groove.