Vertical outward folding type folding screen mobile phone
By employing a vertical outward folding design and a sliding connection structure, the bulky size and fragile screen issues of foldable phones are resolved. This enables the conversion between the main screen and the secondary screen, reduces costs, protects the screen, supports the upgrading of older phones, and optimizes the body structure.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 兰博文
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-08
AI Technical Summary
Foldable screen phones suffer from issues such as bulky size, increased cost of external secondary screens, and screen fragility.
It adopts a vertical outward folding design, and achieves active sliding of the flexible screen through the sliding connection between the trolley assembly and the guide rail, in conjunction with the rigid rope and the reset elastic element. Combined with the arc surface design of the pivot cover assembly, it ensures that the flexible screen has no pressure support when folded, and a split electronic component cavity is set in the body, which is connected by flexible circuits.
It enables the automatic conversion of the main screen to the secondary screen, reducing material costs, avoiding hardware waste, protecting the screen, optimizing the body structure, supporting the modification of older mobile phones, reducing production costs, and being environmentally friendly.
Smart Images

Figure CN224218415U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foldable screen mobile phones, and in particular to a vertically outward foldable screen mobile phone. Background Technology
[0002] Foldable phones represent a significant cutting-edge development in the current mobile phone market. In the evolution of foldable phone design, horizontal inward folding, horizontal outward folding, vertical inward folding, and even a Z-shaped triple-fold structure have emerged. A common problem with inward-folding models is that users don't always unfold the phone for simple operations like replying to messages or checking the time, leading to the development of an "external screen" for convenience. However, this obviously results in a bulky overall phone structure and increased costs. Sometimes, it even becomes a case of the external screen overshadowing the phone's functionality; surveys show that foldable phone users spend an average of up to 80% of their total usage time on the external screen, clearly resulting in "hardware waste." Outward-folding or Z-shaped triple-fold screen designs can cleverly solve this problem.
[0003] While horizontal outward-folding and tri-folding phones have emerged, they still suffer from issues such as excessive size and significant screen damage. To explore new phone form factors and expand the development direction of foldable phones, vertical outward-folding designs hold considerable exploratory value in terms of both appearance and cost. Utility Model Content
[0004] The main purpose of this utility model is to provide a vertically folding outward folding screen phone, which solves the problems of bulky size, increased cost of external secondary screens, and significant damage to the screen.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a vertically folding outward folding screen mobile phone, wherein the upper shell and the lower shell are rotatably connected by a pivot and a pivot cover assembly, the upper shell is provided with guide rails on both sides, the trolley assembly is slidably connected to the upper shell through the guide rails, a reset elastic element is provided between the trolley assembly and the end of the guide rail, one end of multiple rigid ropes is connected to the trolley assembly, and the other end is connected to the lower shell, the lower end of the flexible screen is fixed between the lower shell and the lower shell screen fixing piece connected by a snap fastener, the upper end is connected to the trolley assembly, and slides between the upper shell and the upper shell screen bracket connected by a snap fastener.
[0006] In the preferred embodiment, the trolley assembly includes sliders symmetrically arranged on both sides and an intermediate plate connecting the two sliders. The two sliders are slidably connected to the guide rails on both sides of the upper housing, and the upper end of the flexible screen is fixed to the surface of the intermediate plate.
[0007] In the preferred embodiment, the pivot cover assembly has an arc-shaped surface in the middle, the curvature of which matches the curvature of the middle part when the flexible screen is folded.
[0008] The longitudinal width of the pivot cover assembly is set so that there is no interference at the ends when the upper and lower housings rotate.
[0009] In the preferred embodiment, the rotating shaft cover assembly has top support platforms on both sides of the arc-shaped surface, and a groove in the middle. Multiple rigid ropes are respectively threaded through the grooves on both sides and slide along the grooves.
[0010] In the preferred embodiment, the difference between the height of the groove bottom plane and the height of the rigid rope inside the guide rail is adapted to the curvature of the flexible screen.
[0011] In the preferred embodiment, the length of the guide rail is greater than the sliding stroke of the upper end of the flexible screen when the upper and lower housings are fully folded.
[0012] In the preferred embodiment, the reset elastic element is a compression spring sleeved outside the rigid rope, with one end connected to the slider and the other end connected to the end point of the guide rail stroke, used to drive the slider to reset to the beginning point of the guide rail stroke.
[0013] In the preferred embodiment, a slot structure is formed at the top of the upper casing and the top of the upper casing screen bracket, which is used to form a limiting fit with the end of the flexible screen and the slide assembly when the phone is unfolded.
[0014] In the preferred embodiment, electronic component cavities are respectively provided on the rear side of the upper and lower housings, and each electronic component is installed in the electronic component cavity and electrically connected through a flexible circuit.
[0015] In the preferred embodiment, the upper and lower housing frames are also provided with functional openings, including a camera hole, a charging hole, and a microphone hole.
[0016] This utility model provides a vertically folding outward folding screen mobile phone, which has the following advantages: after folding, the main screen automatically converts into a secondary screen function, eliminating the need for an additional external secondary screen, significantly reducing material costs and body weight, and avoiding the "hardware waste" problem of traditional folding screens; the body adopts a split electronic component cavity design, combined with flexible circuit connection, to ensure a compact internal layout, further optimize the size, and solve the problems of bulky size and secondary screen cost.
[0017] By sliding the trolley assembly and the guide rail together, and with the traction of the rigid rope and the drive of the reset elastic element, the flexible screen actively slides to avoid the body when folding, eliminating the risk of damage to the screen caused by stretching or squeezing; the curved surface design of the hinge cover assembly precisely matches the folding curvature of the flexible screen, providing pressure-free support and avoiding damage to the bending area due to stress concentration. The active avoidance mechanism protects the flexible screen.
[0018] The top support and groove work together to guide the sliding path of the rigid rope, and the height difference of the groove adapts to the bending requirements of the screen, ensuring a smooth and uninterrupted folding process; the guide rail is longer than the sliding stroke of the flexible screen, leaving sufficient buffer space; the slot structure locks the screen position when unfolded, enhancing stability, and key structural optimizations improve reliability during fatigue use.
[0019] It supports the modification of old screen mobile phones to achieve resource recycling, reduce production costs and electronic waste. The body frame can be 3D printed to simplify the customization process, adapt to components of different sizes, and be compatible with environmental protection and low-cost manufacturing.
[0020] The separate electronic component cavity ensures the safe encapsulation of core components such as the motherboard and battery, while the functional openings maintain a full-featured user experience and guarantee the integrity of the functions.
[0021] This invention replaces traditional static stretching with mechanical dynamic avoidance, solving technical problems such as volume redundancy, secondary screen redundancy, and screen damage in foldable phones. At the same time, through modular design and environmentally friendly modification solutions, it provides the industry with a new form of vertical outward folding that is cost-effective and highly reliable. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0023] Figure 1 This is the overall appearance and structural diagram of this utility model;
[0024] Figure 2 This is a structural diagram of the overall disassembled flexible screen of the casing of this utility model;
[0025] Figure 3 This is a structural diagram of the back side of the casing of this utility model;
[0026] Figure 4 This is a schematic diagram of the folding structure of the casing of this utility model;
[0027] Figure 5 This is a structural diagram of the upper housing of this utility model;
[0028] Figure 6 This is a structural diagram of the lower casing of this utility model;
[0029] Figure 7 This is a structural diagram of the pivot cover assembly of this utility model;
[0030] Figure 8 This is a structural diagram of the trolley assembly of this utility model;
[0031] Figure 9 This is a structural diagram of the upper casing screen bracket of this utility model;
[0032] Figure 10This is a structural diagram of the lower casing screen fixing piece of this utility model.
[0033] In the diagram: Upper housing 1; guide rail 101; lower housing 2; rotating shaft 3; rotating shaft cover assembly 4; trolley assembly 5; slider 501; intermediate plate 502; reset elastic element 6; rigid rope 7; flexible screen 8; lower housing screen fixing piece 9; upper housing screen bracket 10; top support platform 11; groove 1101; card slot structure 12; electronic component cavity 13; functional opening 14. Detailed Implementation
[0034] Example 1
[0035] like Figures 1-10 As shown, a vertically folding outward-folding screen mobile phone has an upper housing 1 and a lower housing 2 that are rotatably connected to a pivot 3 and a pivot cover assembly 4, respectively. The upper housing 1 has guide rails 101 on both sides. A trolley assembly 5 is slidably connected to the upper housing 1 through the guide rails 101. A reset elastic element 6 is provided between the ends of the trolley assembly 5 and the guide rails 101. One end of multiple rigid ropes 7 is connected to the trolley assembly 5, and the other end is connected to the lower housing 2. The lower end of the flexible screen 8 is fixed between the lower housing 2 and the lower housing screen fixing piece 9 that are connected by a snap fastener, and the upper end is connected to the trolley assembly 5. It slides between the upper housing 1 and the upper housing screen bracket 10 that are connected by a snap fastener.
[0036] This application adopts a design concept that allows the screen to slide relative to the frame and actively avoid the body, solving the problem that the back edge line will be extended when the body is folded. When the body is folded, the rigid ropes 7 on both sides are raised by the hinge cover assembly 4, thereby pulling the upper part of the flexible screen 8, which is not fully fixed, to slide with the trolley assembly 5. When the body is unfolded and laid flat, the rigid ropes 7 lose traction, and the trolley assembly 5, driven by the reset elastic element 6, resets the flexible screen 8 to the unfolded state.
[0037] The main screen, after being folded outwards vertically, can also serve as a secondary screen, saving materials used in the secondary screens of traditional foldable phones, thereby further reducing costs and lowering prices. At the same time, it can reduce the production of secondary screens and protect the environment.
[0038] In the preferred embodiment, the trolley assembly 5 includes sliders 501 symmetrically arranged on both sides and an intermediate plate 502 connecting the two sliders 501. The two sliders 501 are slidably connected to the guide rails 10 on both sides of the upper housing 1, and the upper end of the flexible screen 8 is fixed to the surface of the intermediate plate 502.
[0039] In the preferred embodiment, the pivot cover assembly 4 has an arc-shaped surface in the middle, the curvature of which matches the curvature of the middle part of the flexible screen 8 when it is folded.
[0040] The longitudinal width of the rotating shaft cover assembly 4 is set so that there is no interference at the ends when the upper housing 1 and the lower housing 2 rotate.
[0041] The curved surface is precisely designed so that the flexible screen 8 fits perfectly against the curved surface when bent, without applying pressure to each other. This avoids damage to the flexible screen 8 due to contact pressure or the entry of foreign objects or the impact on appearance due to gaps.
[0042] In the preferred embodiment, the rotating shaft cover assembly 4 has a top support platform 11 on both sides of the arc surface, and a groove 1101 in the middle. Multiple rigid ropes 7 are respectively inserted into the grooves 1101 on both sides and slide along the grooves.
[0043] In the preferred embodiment, the difference between the height of the bottom plane of the groove 1101 and the height of the rigid rope 7 inside the guide rail 101 is adapted to the curvature of the flexible screen 8.
[0044] By designing the height of the groove 1101 welded onto the top support platform 11, the required stretching length of the flexible screen 8 is met, while also providing guidance for the parallel sliding on both sides.
[0045] In the preferred embodiment, the length of the guide rail 101 is greater than the sliding stroke of the upper end of the flexible screen 8 when the upper housing 1 and the lower housing 2 are fully folded.
[0046] In the preferred embodiment, the reset elastic element 6 is a compression spring sleeved outside the rigid rope 7. One end of the spring is connected to the slider 501, and the other end is connected to the end point of the guide rail 101's stroke. It is used to drive the slider 501 to reset to the beginning point of the guide rail 101's stroke.
[0047] In the preferred embodiment, a slot structure 12 is formed at the top of the upper housing 1 and the upper housing screen bracket 10, which is used to form a limiting engagement with the flexible screen 8 and the end of the trolley assembly 5 when the mobile phone is unfolded.
[0048] In the preferred embodiment, the upper housing 1 and the lower housing 2 are respectively provided with electronic component cavities 13 on their rear sides. Each electronic component is installed in the electronic component cavity 13 and is electrically connected through a flexible circuit.
[0049] In the preferred embodiment, the upper housing 1 and the lower housing 2 frame are also provided with functional openings 14, including a camera hole, a charging hole and a radio hole.
[0050] Example 2
[0051] Further explanation in conjunction with Example 1, such as Figures 1-10 As shown in the diagram, the flexible screen 8 can use specific old traditional hard screen mobile phones as the base material, and old mobile phones can be folded and modified for large-scale recycling, which has high use value and environmental protection value.
[0052] Flexible OLED screen substrates can be used. This material itself has a certain degree of flexibility. The screen components are separated from the glass panel by cutting the OCA optical adhesive with a 0.03mm alloy wire and removing the residual adhesive. Then, the buffer foam layer and heat dissipation copper layer on the back of the screen are carefully removed with a blade to make the screen more flexible and avoid wrinkles on the surface when bending, which could cause damage when the bending angle is too large.
[0053] The original mid-frame containing the antenna was cut and split in two for separate installation in the upper housing 1 and the lower housing 2. The original lithium battery components were disassembled into a protection board and a battery cell. A smaller, custom-made battery cell was then re-welded to the protection board. A thin, foldable silicone-insulated wire of a certain length was added between the two to connect the protection board in the upper housing and the battery cell in the lower housing.
[0054] By discarding the original casing, bracket, and other structural components, adaptive body and screen sliding structure parts can be formed through 3D printing. The body frame can be made of PETG-CF carbon fiber reinforced material. The original motherboard, sub-board, camera, ribbon cable assembly, display, sensor, speaker, and other original mobile phone components can be disassembled and customized with lithium batteries of the corresponding size.
[0055] First, the screen is processed as described to obtain the flexible screen 8. The outer casing and stainless steel hinge 3 are then assembled to form the complete body. Next, the upper back of the flexible screen 8 is connected to the trolley assembly 5 using adhesive. Adhesives such as 502 glue, B7000 special glue, flexible shoe glue, and 3M industrial double-sided tape can be used. Then, all internal electronic components are installed according to the design plan, and the ribbon cables are connected. Next, the guide rail structure is installed, springs are inserted, and the rigid rope 7 is inserted. The rigid rope 7 can be made of multi-strand fishing line. The screen is then installed, and the upper and lower casing screen fixing pieces 9 and the upper casing screen bracket 10 are fastened. Finally, the back canvas backplate is attached to complete the assembly process. After testing that all functions operate normally without faults, the physical manufacturing process is completed.
[0056] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.
Claims
1. A vertically folding outward-folding screen mobile phone, characterized in that: The upper housing (1) and the lower housing (2) are rotatably connected to the rotating shaft (3) and the rotating shaft cover assembly (4) respectively. The upper housing (1) is provided with guide rails (101) on both sides. The trolley assembly (5) is slidably connected to the upper housing (1) through the guide rails (101). The trolley assembly (5) and the guide rail (101) are provided with a reset elastic element (6). One end of multiple rigid ropes (7) is connected to the trolley assembly (5), and the other end is connected to the lower housing (2). The lower end of the flexible screen (8) is fixed between the snap-fit lower housing (2) and the lower housing screen fixing piece (9), and the upper end is connected to the trolley assembly (5). It slides between the snap-fit upper housing (1) and the upper housing screen bracket (10).
2. The vertically folding outward-folding screen phone according to claim 1, characterized in that: The trolley assembly (5) includes two symmetrically arranged sliders (501) and a middle plate (502) connecting the two sliders (501). The two sliders (501) are slidably connected to the guide rails (10) on both sides of the upper housing (1), and the upper end of the flexible screen (8) is fixed on the surface of the middle plate (502).
3. A vertically folding outward-folding screen mobile phone according to claim 1, characterized in that: The pivot cover assembly (4) has an arc-shaped surface in the middle, the curvature of which matches the curvature of the middle part of the flexible screen (8) when it is folded; The longitudinal width of the rotating shaft cover assembly (4) is set so that there is no interference at the ends when the upper housing (1) and the lower housing (2) rotate.
4. A vertically folding outward-folding screen mobile phone according to claim 3, characterized in that: The rotating shaft cover assembly (4) has a top support platform (11) on both sides of the arc surface, and a groove (1101) in the middle. Multiple rigid ropes (7) are respectively inserted into the grooves (1101) on both sides and slide along the groove.
5. A vertically folding outward-folding screen phone according to claim 4, characterized in that: The difference between the height of the bottom plane of the groove (1101) and the height of the rigid rope (7) inside the guide rail (101) is adapted to the curvature of the flexible screen (8).
6. A vertically folding outward-folding screen mobile phone according to claim 1, characterized in that: The length of the guide rail (101) is greater than the sliding stroke of the upper end of the flexible screen (8) when the upper housing (1) and the lower housing (2) are fully folded.
7. A vertically folding outward-folding screen mobile phone according to claim 1, characterized in that: The reset elastic element (6) is a compression spring sleeved outside the rigid rope (7). One end of the spring is connected to the slider (501), and the other end is connected to the end point of the guide rail (101) stroke. It is used to drive the slider (501) to reset to the beginning point of the guide rail (101) stroke.
8. A vertically folding outward-folding screen mobile phone according to claim 1, characterized in that: A slot structure (12) is formed at the top of the upper housing (1) and the upper housing screen bracket (10) to form a limiting fit with the flexible screen (8) and the end of the slide assembly (5) when the mobile phone is unfolded.
9. A vertically folding outward-folding screen mobile phone according to claim 1, characterized in that: The upper housing (1) and the lower housing (2) are respectively provided with electronic component cavities (13) on the rear side. Each electronic component is installed in the electronic component cavity (13) and is electrically connected through a flexible circuit.
10. A vertically folding outward-folding screen mobile phone according to claim 1, characterized in that: The upper housing (1) and lower housing (2) frame are also provided with functional openings (14), including a camera hole, a charging hole and a radio hole.