Folding structure applied to mobile phone

Through the precise design of the hinge assembly and the close cooperation between components, the problem of unsmooth unfolding of the phone's folding structure has been solved, achieving a stable and durable folding effect.

CN223987112UActive Publication Date: 2026-03-10DONGGUAN OSENLONG TECH DEV CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2026-03-10

AI Technical Summary

Technical Problem

Existing mobile phone folding structures cannot effectively control the folding force and have problems with smooth unfolding.

Method used

The rotating shaft assembly, including the rotating shaft rod fixing block, left rotating rod, right rotating rod, rotating shaft cam, and transmission gear set, is precisely matched. The folding force is controlled by a spring, and smooth folding and unfolding are achieved through the transmission gear set.

Benefits of technology

It enables smooth folding and unfolding of the phone screen, providing a smooth user experience, and improves the stability and durability of the folding structure, reducing component wear and loosening.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of mobile phones, and discloses a folding structure applied to a mobile phone, which is characterized in that a rotating shaft fixing cover is provided with a concave area for mounting components; more than two rotating shaft assemblies are uniformly mounted in the concave area; the left rotating shaft pressing sheet is connected with the left rotating shaft fixing plate through a screw; the right rotating shaft pressing piece is connected with the right rotating shaft fixing plate through a screw. The folding structure provided by the utility model is more compact, and the rotating process is more stable.
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Description

Technical Field

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

[0002] With the rapid development of mobile communication technology, smartphones have become an indispensable tool in people's daily lives. In recent years, to meet users' needs for portability and large-screen displays, foldable smartphones have gradually emerged and become a hot product in the market. Foldable smartphones use a specific folding structure to fold and unfold the screen and the body, thus providing a larger display area while ensuring portability.

[0003] Currently, most mobile phones on the market use a single linkage tooth structure to unfold the screen. However, this makes it difficult to effectively control the folding force of the screen during use, and the folding structure also suffers from uneven unfolding.

[0004] Therefore, improvements are needed. Utility Model Content

[0005] The technical problem solved by this utility model is to address the deficiencies in the prior art by providing a folding structure for mobile phones, thereby solving the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a folding structure for mobile phones, comprising: a hinge fixing cover, the hinge fixing cover having a recessed area for mounting components; a hinge assembly, the hinge assembly comprising two or more hinge assemblies, the hinge assemblies being evenly installed in the recessed area; the hinge assembly comprising a hinge rod fixing block, a left rotating rod and a right rotating rod mounted on the hinge rod fixing block, a left spring sleeved on the left rotating rod, a right spring sleeved on the right rotating rod, a hinge cam sleeved on the left rotating rod and the right rotating rod, a left shaft connecting block sleeved on the left rotating rod, and a left shaft connecting block sleeved on the right rotating rod. The rod includes a right shaft connecting block, a left rotating shaft fixing plate connected to the left shaft connecting block, a right rotating shaft fixing plate connected to the right shaft connecting block, a transmission gear set disposed between the ends of the left rotating rod and the right rotating rod, a connecting block support plate sleeved on the ends of the left rotating rod and the right rotating rod, a left movable connecting block mounted on the connecting block support plate and connected to the left rotating shaft fixing plate, and a right movable connecting block mounted on the connecting block support plate and connected to the right rotating shaft fixing plate; a left rotating shaft pressure plate connected to the left rotating shaft fixing plate by screws; and a right rotating shaft pressure plate connected to the right rotating shaft fixing plate by screws.

[0007] Furthermore, the rotating shaft cam has a first sawtooth for meshing transmission on the side facing the left shaft connecting block and the right shaft connecting block, and the left shaft connecting block and the right shaft connecting block have a second sawtooth that cooperates with the first sawtooth for transmission.

[0008] Furthermore, a fixing block baffle is provided at the position of the rotating shaft fixing block and the left rotating rod and the right rotating rod, and the fixing block baffle is provided with an opening for engaging with the left rotating rod and the right rotating rod.

[0009] Furthermore, a first washer, a washer baffle, a second washer, and a spring baffle are fitted onto the positions of the rotating shaft fixing block and the left rotating rod and the right rotating rod, respectively; wherein, the first washer is fitted onto the left rotating rod and the right rotating rod; the washer baffle is fitted onto the left rotating rod and the right rotating rod; the second washer is fitted onto the left rotating rod and the right rotating rod; and the spring baffle is fitted onto the left rotating rod and the right rotating rod.

[0010] Furthermore, the transmission gear set includes a main gear fixed on the left rotating rod and the right rotating rod respectively, and a secondary gear meshing with the main gear; a rotating shaft gear baffle is provided between the transmission gear set and the left shaft connecting block and the right shaft connecting block.

[0011] Furthermore, the connecting block support plate is respectively provided with guide grooves that rotatably cooperate with the left movable connecting block and the right movable connecting block; the left movable connecting block is provided with a left guide portion that cooperates with the guide groove, and the right movable connecting block is provided with a right guide portion that cooperates with the guide groove; wherein, when the left movable connecting block rotates, the left guide portion rotates relative to the guide groove; when the right movable connecting block rotates, the right guide portion rotates relative to the guide groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Through a carefully designed hinge assembly layout and connection method between components, a folding structure for mobile phones is provided. The precise design of the transmission gear set and the close cooperation between components enable smooth folding and unfolding of the folding structure, bringing users a smoother user experience. Springs are used to control the folding force, and appropriate springs can be installed according to requirements.

[0014] The design incorporates innovative pivot cams, left axle connecting blocks, and right axle connecting blocks. The precise fit between these components ensures the stability and durability of the folding structure. During prolonged use, the pads and baffles between the components effectively reduce wear and loosening, extending the lifespan of the phone's folding structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of this utility model.

[0017] Figure 3 This is a structural schematic diagram of the rotating shaft assembly.

[0018] Figure 4 This is a partial structural diagram of the pivot assembly.

[0019] Figure 5 This is a partial structural diagram of the pivot assembly.

[0020] Figure 6 This is a partial structural diagram of the pivot assembly.

[0021] Figure 7 yes Figure 6 A partially enlarged structural diagram.

[0022] Figure 8 This is a partial structural diagram of the pivot assembly.

[0023] Figure 9 This is a schematic diagram illustrating the use of this utility model.

[0024] Figure 10 This is a plan view of the present invention.

[0025] Figure 11 This is a folding diagram of the present invention.

[0026] Reference numerals: 1. Shaft fixing cover; 2. Recessed area; 3. Shaft assembly; 4. Shaft rod fixing block; 5. Left rotating rod; 6. Right rotating rod; 7. Left spring; 8. Right spring; 9. Shaft cam; 10. Left shaft connecting block; 11. Right shaft connecting block; 12. Left shaft fixing plate; 13. Right shaft fixing plate; 14. Transmission gear set; 15. Connecting block support plate; 16. Left movable connecting block; 17. Right movable connecting block; 18. Left shaft pressure plate; 19. Right shaft pressure plate; 20. First sawtooth; 21. Second sawtooth; 22. Fixing block baffle; 23. First gasket; 24. Gasket baffle; 25. Second gasket; 26. Spring baffle; 27. Main gear; 28. Secondary gear; 29. ​​Guide groove; 30. Left guide part; 31. Right guide part. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and 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, and therefore should not be construed as limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Moreover, "above," "over," and "on top" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] In view of the technical problems described in the background art, such as Figure 1-11As shown, a folding structure for a mobile phone is provided, including: a hinge fixing cover 1, the hinge fixing cover 1 having a recessed area 2 for mounting components; a hinge assembly 3, of which there are two or more hinge assemblies 3, the hinge assemblies 3 being evenly installed in the recessed area 2; the hinge assembly 3 includes a hinge rod fixing block 4, a left rotating rod 5 and a right rotating rod 6 mounted on the hinge rod fixing block 4, a left spring 7 sleeved on the left rotating rod 5, a right spring 8 sleeved on the right rotating rod 6, a hinge cam 9 sleeved on the left rotating rod 5 and the right rotating rod 6, a left shaft connecting block 10 sleeved on the left rotating rod 5, and a right shaft connecting block 11 sleeved on the right rotating rod 6, connected to the left shaft. The system includes a left rotating shaft fixing plate 12 connected to the connecting block 10, a right rotating shaft fixing plate 13 connected to the right shaft connecting block 11, a transmission gear set 14 disposed between the ends of the left rotating rod 5 and the right rotating rod 6, a connecting block support plate 15 sleeved on the ends of the left rotating rod 5 and the right rotating rod 6, a left movable connecting block 16 mounted on the connecting block support plate 15 and connected to the left rotating shaft fixing plate 12, and a right movable connecting block 17 mounted on the connecting block support plate 15 and connected to the right rotating shaft fixing plate 13; a left rotating shaft pressure plate 18, which is connected to the left rotating shaft fixing plate 12 by screws; and a right rotating shaft pressure plate 19, which is connected to the right rotating shaft fixing plate 13 by screws.

[0030] In the above technical solution, the folding structure includes a pivot fixing cover 1, a pivot assembly 3, a left pivot pressure plate 18, and a right pivot pressure plate 19.

[0031] The rotating shaft fixing cover 1 has a recessed area 2 for mounting components, providing a stable base for the installation of the rotating shaft assembly 3, the left rotating shaft pressure plate 18, and the right rotating shaft pressure plate 19. In practice, the configuration can be adapted according to specific implementation conditions.

[0032] The hinge assembly 3 is a key structure for realizing the rotation of the mobile phone screen. To ensure smooth rotation of the screen, multiple hinge assemblies 3 need to be installed. The number of hinge assemblies 3 is not limited and can be selected according to actual usage needs. Preferably, in this embodiment, there are three sets of hinge assemblies 3, evenly installed in the recessed area 2 of the hinge fixing cover 1. The hinge rod fixing block 4 is fixed to the hinge fixing cover 1 with screws. The hinge rod fixing block 4 has two holes for connecting the left rotating rod 5 and the right rotating rod 6 respectively. A left spring 7 is fitted on the left rotating rod 5, and a right spring 8 is fitted on the right rotating rod 6. Appropriate springs can be fitted according to the required rotational force of the left and right rotating rods 5 and 6. A hinge cam 9 is fitted on the left and right rotating rods 5 and 6. Under the action of the springs, the hinge cam 9 engages the left and right movable connecting blocks 16 and 17 respectively, thereby realizing the rotation of the left and right movable connecting blocks 16 and 17. The left movable connecting block 16 and the right movable connecting block 17 are connected to the phone frame by screws. A transmission gear set 14 is provided at the ends of the left rotating rod 5 and the right rotating rod 6, which controls the opening or closing of the folding structure. Furthermore, a connecting block support plate 15 is provided at the ends of the left rotating rod 5 and the right rotating rod 6. The connecting block support plate 15 provides installation and enhances the stability of the structure, providing stable rotation for the left movable connecting block 16 and the right movable connecting block 17 during rotation. Specifically, at least a portion of the left movable connecting block 16 is restrained on the connecting block support plate 15 and connected to the left rotating shaft fixing plate 12 by screws, and at least a portion of the right movable connecting block 17 is restrained on the connecting block support plate 15 and connected to the right rotating shaft fixing plate 13 by screws.

[0033] The left rotating shaft pressure plate 18 is connected to the left movable connecting block 16 and the left rotating shaft fixing plate 12 by screws, and the right rotating shaft pressure plate 19 is connected to the right movable connecting block 17 and the right rotating shaft fixing plate 13 by screws.

[0034] When the phone screen is manually rotated during use, the transmission gear set 14 rotates, which in turn drives the left rotating shaft fixing plate 12 and the right rotating shaft fixing plate 13 to rotate via the left rotating shaft connecting block and the right rotating shaft connecting block. Since the left rotating shaft fixing plate 12 and the right rotating shaft fixing plate 13 are connected to the phone frame, the phone frame can be folded.

[0035] In the above, the smooth folding and unfolding of the folding structure is achieved through the precise design of the transmission gear set 14 and the close cooperation between the components, bringing users a smoother user experience; the spring is used to control the folding force, and an appropriate spring can be installed according to requirements.

[0036] like Figure 4As shown, the rotating shaft cam 9 has a first sawtooth 20 for meshing transmission on the side facing the left shaft connecting block 10 and the right shaft connecting block 11, and the left shaft connecting block 10 and the right shaft connecting block 11 have a second sawtooth 21 that cooperates with the first sawtooth 20 for transmission.

[0037] Under the action of the spring, the first sawtooth 20 of the rotating shaft cam 9 meshes with the second sawtooth 21 on the left shaft connecting block 10 and the right shaft connecting block 11. Thus, when the left rotating rod 5 and the right rotating rod 6 rotate, they drive the left shaft connecting block 10 and the right shaft connecting block 11 to rotate. In this way, the spring is used to control the force of folding the entire rotating shaft.

[0038] like Figure 4 As shown, a fixing block 22 is provided at the position of the rotating shaft fixing block 4 and the left rotating rod 5 and the right rotating rod 6. The fixing block 22 is provided with an opening for engaging with the left rotating rod 5 and the right rotating rod 6.

[0039] Adding a fixed block baffle 22 to connect with the left rotating rod 5 and the right rotating rod 6 improves the stability of the connection between the rotating shaft fixed block 4 and the left rotating rod 5 and the right rotating rod 6.

[0040] refer to Figure 6-7 As shown, a first washer 23, a washer baffle 24, a second washer 25, and a spring baffle 26 are fitted onto the pivot rod fixing block 4 and the left rotating rod 5 and the right rotating rod 6, respectively; wherein, the first washer 23 is fitted onto the left rotating rod 5 and the right rotating rod 6 respectively; the washer baffle 24 is fitted onto the left rotating rod 5 and the right rotating rod 6 respectively; the second washer 25 is fitted onto the left rotating rod 5 and the right rotating rod 6 respectively; and the spring baffle 26 is fitted onto the left rotating rod 5 and the right rotating rod 6.

[0041] To further improve the stability of rotation, a first shim 23, a shim baffle 24, a second shim 25, and a spring baffle 26 are added. These components are positioned between the rotating shaft fixing block 4 and the spring, providing stability during rotation.

[0042] Reference Figure 6 As shown, the transmission gear set 14 includes a main gear 27 fixed on the left rotating rod 5 and the right rotating rod 6 respectively, and a secondary gear 28 meshing with the main gear 27; a rotating shaft gear baffle is provided between the transmission gear set 14 and the left shaft connecting block 10 and the right shaft connecting block 11.

[0043] Specifically, the main gear 27 and the end of the left rotating rod 5 are an integral structure, and the main gear 27 and the end of the right rotating rod 6 are an integral structure. The main gear 27 meshes and rotates with the auxiliary gear 28 installed. That is, when folding or opening, the relative rotation of the main gear 27 and the auxiliary gear 28 controls the opening or closing angle.

[0044] like Figure 8 As shown, the connecting block support plate 15 is provided with guide grooves 29 that rotatably cooperate with the left movable connecting block 16 and the right movable connecting block 17; the left movable connecting block 16 is provided with a left guide portion 30 that cooperates with the guide groove 29, and the right movable connecting block 17 is provided with a right guide portion 31 that cooperates with the guide groove 29; wherein, when the left movable connecting block 16 rotates, the left guide portion 30 rotates relative to the guide groove 29; when the right movable connecting block 17 rotates, the right guide portion 31 rotates relative to the guide groove 29.

[0045] To further improve the orderliness and stability of rotation, a guide groove 29 is provided on the connecting block support plate 15. The guide groove 29 has an arc-shaped structure, and a left guide part 30 and a right guide part 31 are designed to fit the left movable connecting block 16 and the right movable connecting block 17 respectively. During rotation, the left guide part 30 and the right guide part 31 rotate under the limiting action of the guide groove 29, which can improve the stability during the rotation process.

[0046] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A folding structure applied to a mobile phone, characterized in that, It includes: The rotating shaft fixing cover has a recessed area for installing parts; The rotating shaft assembly is more than two, which is evenly installed in the recessed area; The rotating shaft assembly includes rotating shaft rod fixing block, left rotating rod and right rotating rod installed on the rotating shaft rod fixing block, left spring sleeved on the left rotating rod, right spring sleeved on the right rotating rod, rotating shaft cam sleeved on the left rotating rod and the right rotating rod, left shaft rod connecting block sleeved on the left rotating rod, right shaft rod connecting block sleeved on the right rotating rod, left rotating shaft fixing plate connected with the left shaft rod connecting block, right rotating shaft fixing plate connected with the right shaft rod connecting block, transmission gear set arranged between the left rotating rod and the right rotating rod, connecting block supporting plate sleeved on the left rotating rod and the right rotating rod, left movable connecting block installed on the connecting block supporting plate and connected with the left rotating shaft fixing plate, and right movable connecting block installed on the connecting block supporting plate and connected with the right rotating shaft fixing plate; The left rotating shaft pressing plate is connected with the left rotating shaft fixing plate by screws; The right rotating shaft pressing plate is connected with the right rotating shaft fixing plate by screws.

2. The folding structure applied to the mobile phone according to claim 1, wherein: The rotating shaft cam is provided with a first sawtooth on one side of the left shaft rod connecting block and the right shaft rod connecting block for engaging transmission, and the left shaft rod connecting block and the right shaft rod connecting block are provided with a second sawtooth for cooperating with the first sawtooth for transmission.

3. The folding structure applied to the mobile phone according to claim 2, wherein: The rotating shaft rod fixing block is provided with a fixing block baffle at the positions of the left rotating rod and the right rotating rod, and the fixing block baffle is provided with an opening for buckling with the left rotating rod and the right rotating rod.

4. The folding structure applied to the mobile phone according to claim 3, wherein: The rotating shaft rod fixing block is sleeved with a first gasket, a gasket baffle, a second gasket and a spring baffle at the positions of the left rotating rod and the right rotating rod; The first gasket is respectively sleeved on the left rotating rod and the right rotating rod; The gasket baffle is sleeved on the left rotating rod and the right rotating rod; The second gasket is respectively sleeved on the left rotating rod and the right rotating rod; The spring baffle is sleeved on the left rotating rod and the right rotating rod.

5. The folding structure applied to the mobile phone according to claim 4, wherein: The transmission gear set includes a main gear fixed on the left rotating rod and the right rotating rod respectively, and a secondary gear engaged with the main gear for transmission; The transmission gear set is provided with a rotating shaft gear baffle between the left shaft rod connecting block and the right shaft rod connecting block.

6. The folding structure applied to the mobile phone according to claim 5, wherein: The connecting block supporting plate is respectively provided with a guide groove matched with the left and right movable connecting blocks for rotation; the left movable connecting block is provided with a left guide part matched with the guide groove, and the right movable connecting block is provided with a right guide part matched with the guide groove. In the process of rotation, the left guide part rotates relative to the guide groove, and the right guide part rotates relative to the guide groove.