Hinge mechanism and folding screen terminal

Abstract

A hinge mechanism and a folding screen terminal, relating to the technical field of electronic devices. In the hinge mechanism (220), first swing arms (11) and second swing arms (12) are configured to be rotatably and slidably connected, such that the second swing arms (12) can drive the first swing arms (11) and panels (40) to move, and the positions of the first swing arms (11) relative to the panels (40) and a base (50) are adjusted by means of the second swing arms (12); and when the hinge mechanism (220) is in an unfolded state, each first swing arm (11) rotates to a gap between the corresponding panel (40) and the base (50), such that an original gap between the corresponding second swing arm (12) and the base (50) is perfectly filled by the first swing arm (11), i.e., when the hinge mechanism (220) rotates to the unfolded state, the hinge mechanism (220) can better support a folding screen (300) to reduce the risk of the occurrence of depressions on the folding screen (300), thereby enhancing user experience.

Description

A hinge mechanism and a foldable screen terminal Technical Field

[0001] This application relates to the field of electronic device technology, and in particular to a hinge mechanism and a foldable screen terminal. Background Technology

[0002] Foldable screen devices are gaining popularity due to their large-screen display capabilities. These devices utilize an internal hinge mechanism to fold or unfold. However, existing hinge mechanisms in foldable screen devices offer poor support for the folded screen, negatively impacting the user experience. Summary of the Invention

[0003] This application provides a hinge mechanism and a foldable screen terminal to solve the problem that the hinge mechanism of the foldable screen terminal has poor support effect on the foldable screen, which affects the user experience.

[0004] To achieve the above objectives, the embodiments of this application adopt the following technical solutions:

[0005] In a first aspect, a pivot mechanism is provided for supporting a foldable screen. The pivot mechanism includes a base, a first swing arm, and a second swing arm, located on the same side of the base. One end of the first and second swing arms are rotatably connected to the base, and the first and second swing arms are rotatably and slidably connected. During the rotation of the second swing arm relative to the base, the second swing arm drives the first swing arm to move. The pivot mechanism has an unfolded state and a folded state. When the pivot mechanism is in the unfolded state, the surface of the first swing arm facing the foldable screen and the surface of the base facing the foldable screen are coplanar.

[0006] The pivot mechanism provided in the first aspect of this application involves a first swing arm and a second swing arm that are rotatably and slidably connected. The second swing arm can drive the first swing arm to move, thereby adjusting the position of the first swing arm relative to the base. The rotation of the second swing arm around the base causes the first swing arm to rotate around the base, allowing the first swing arm to rotate relative to the base to either an unfolded or folded state. Simultaneously, during the rotation of the first swing arm by the second swing arm, the first swing arm slides relative to the second swing arm. When the pivot mechanism is in the unfolded state, the side of the first swing arm facing the folding screen slides until it is coplanar with the side of the base facing the folding screen. The first swing arm precisely fills the original gap between the second swing arm and the base; that is, when the pivot mechanism is rotated to the unfolded state, the surface of the first swing arm facing the folding screen and the surface of the base facing the folding screen are coplanar. The first swing arm and the base provide excellent support for the folding screen, reducing the risk of dents appearing during folding and thus improving the user experience.

[0007] In one possible implementation of the first aspect of this application, the pivot mechanism further includes a door panel, and the second swing arm is rotatably connected to the door panel. When the pivot mechanism is in the unfolded state, the first swing arm is located between the base and the door panel, and the surface of the door panel facing the folding screen is coplanar with the surface of the first swing arm facing the folding screen.

[0008] In this embodiment, when the second swing arm rotates to the unfolded state, the second swing arm drives the first swing arm to rotate to the unfolded state. The first swing arm just fills the gap between the base and the door panel, and the surface of the first swing arm facing the folding screen is coplanar with the surface of the door panel facing the folding screen. Thus, the surfaces of the base, the door panel, and the first swing arm facing the folding screen are coplanar, forming a complete plane to support the folding screen and improve its reliability. In one possible implementation of the first aspect of this application, the base is provided with a first groove and a first rotating groove, which are spaced apart along the length of the base; the first swing arm includes a first filling part and a first rotating part, which are spaced apart along the length of the first swing arm; the first filling part cooperates with the first groove, and the first rotating part cooperates with the first rotating groove.

[0009] When the pivot mechanism is in the unfolded state, the first filling part is at least partially located in the first groove, and the surface of the first filling part facing the folding screen is coplanar with the surface of the base facing the folding screen.

[0010] When the pivot mechanism is in the unfolded state, the gap between the door panel and the base is filled by the first filling part, which can reduce the gap between the door panel and the base. The cooperation between the first rotating part, the first filling part and the base can make the first swing arm fill the axis area of ​​the pivot mechanism more completely, forming a complete support surface in the axis area of ​​the pivot mechanism, and providing better support for the folding screen.

[0011] In one possible implementation of the first aspect of this application, the base is further provided with a second groove, which is located on the side of the first groove away from the first rotating groove along the length direction of the base. The first swing arm also includes a second filling part, which is located on the side of the first filling part away from the first rotating part along the length direction of the first swing arm. The second filling part cooperates with the second groove, and when the rotating shaft mechanism is in the unfolded state, the second filling part is at least partially located in the second groove, and the surface of the second filling part facing the folding screen is coplanar with the surface of the base facing the folding screen. By providing a first filling part and a second filling part, with the first filling part cooperating with the first groove and the second filling part cooperating with the second groove, and with two filling parts on the first swing arm and two grooves on the base, it is beneficial to achieve the stability of the cooperation between the first swing arm and the base.

[0012] In one possible implementation of the first aspect of this application, one of the first groove and the first filling part is provided with a first pin hole, and the other is provided with a first pin shaft. The first pin shaft is disposed in the first pin hole so that the first swing arm is rotatably connected to the base. The connection between the first swing arm and the base via a solid shaft is beneficial to achieving stability of the first swing arm during rotation around the base. The pin shaft connection is simple in structure and easy to manufacture.

[0013] In one possible implementation of the first aspect of this application, the axial direction of the first pin is aligned with the length direction of the base. Alignment of the axial direction of the first pin with the length direction of the base improves the rotational stability of the first swing arm relative to the base, and facilitates the rotation of the first swing arm around the base.

[0014] In one possible implementation of the first aspect of this application, the base is further provided with a first arc-shaped sliding groove. Along the thickness direction of the base, the first arc-shaped sliding groove and the first groove are stacked on top of each other, and the first arc-shaped sliding groove is located on the side of the first groove away from the base and facing the folding screen. One end of the second swing arm is provided with a first sliding part, which cooperates with the first arc-shaped sliding groove to make the second swing arm rotatably connected to the base.

[0015] The first groove and the first arc-shaped slide are stacked, which helps to save space in the length direction of the pivot. By setting the first swing arm and the second swing arm toward the side of the folding screen, it is beneficial for the first swing arm to fill the gap or hole between the door panel and the base when the pivot mechanism is rotated to the unfolded state, thereby improving the support effect of the pivot mechanism for the folding screen.

[0016] In one possible implementation of the first aspect of this application, the first rotating part is provided with a first sliding groove, and the rotating shaft mechanism further includes a third pin. The third pin connects the first sliding groove and the first sliding part to allow the first swing arm to be slidably connected to the second swing arm. The first sliding groove has a first position and a second position. When the rotating shaft mechanism switches between an unfolded state and a folded state, the third pin switches between the first position and the second position. The first position and the second position are spaced apart along the width direction of the base.

[0017] In this implementation, the third pin connects the first sliding groove and the first sliding part. The movement of the first swing arm is driven by the third pin. The structure is simple and conducive to the stability of the second swing arm driving the first swing arm, making the first swing arm rotate more smoothly around the base.

[0018] In one possible implementation of the first aspect of this application, the first sliding part is an arc-shaped structure, and a third pin hole is provided on the side of the arc-shaped structure facing the folding screen. The third pin passes through the first sliding groove hole and the third pin hole. In this implementation, the rotation and sliding connection between the first swing arm and the second swing arm are achieved by providing a third pin hole in the first sliding part. The structure is simple and easy to manufacture.

[0019] In one possible implementation of the first aspect of this application, the second swing arm further includes a second sliding portion. The first sliding portion and the second sliding portion are spaced apart along the length direction of the base, and a third notch is provided between the first sliding portion and the second sliding portion. The first rotating portion is at least partially disposed in the third notch. By disposing the first rotating portion between the first sliding portion and the second sliding portion, the stability of the cooperation between the first swing arm and the second swing arm is improved, and the overall thickness of the first swing arm and the second swing arm is reduced.

[0020] In one possible implementation of the first aspect of this application, a first limiting structure is provided between the first swing arm and the second swing arm. When the pivot mechanism is in a folded state, the first limiting structure can restrict the second swing arm from moving towards the base. When the pivot mechanism is in the folded position, in the event of a drop, the first limiting structure between the first and second swing arms can restrict the sliding of the first swing arm relative to the base, thereby braking the movement of the first swing arm and reducing the possibility of the space containing the display screen being crushed in the event of a drop, thus ensuring the structural integrity and functional stability of the display screen.

[0021] In one possible implementation of the first aspect of this application, the first limiting structure includes a first abutting surface disposed on a first swing arm and a second abutting surface disposed on a second swing arm; when the rotating shaft mechanism is in a folded state, the first abutting surface and the second abutting surface are opposite to each other. The structure with the first abutting surface and the second abutting surface opposite to each other is simple and has fewer parts.

[0022] In one possible implementation of the first aspect of this application, the first abutting surface is located at the end of the first swing arm away from the base, and the second swing arm includes a sliding part and a connecting part connected to each other. The sliding part is rotatably connected to the base, and the second abutting surface is located at the end of the connecting part close to the base. This approach is also advantageous for manufacturing, and the structure is relatively simple and effective.

[0023] In one possible implementation of the first aspect of this application, the rotating shaft mechanism further includes a connecting block, and the second swing arm is rotatably connected to the connecting block; when the rotating shaft mechanism is in the deployed state, the connecting block is located on the side of the second swing arm away from the first swing arm. This implementation allows the second swing arm and the connecting block to rotate relative to the base.

[0024] In one possible implementation of the first aspect of this application, the end of the second swing arm furthest from the base is provided with two first connecting portions, and a fourth notch is provided between the two first connecting portions. The connecting block is provided with a second connecting portion and two third grooves. Along the length direction of the base, the two third grooves are respectively provided on both sides of the second connecting portion, and the two first connecting portions respectively cooperate with the two third grooves to enable the second swing arm to be rotatably connected to the connecting block. The above implementation method is beneficial to the stability of the connection between the second swing arm and the connecting block, while realizing the rotatable connection between the second swing arm and the connecting block.

[0025] In one possible implementation of the first aspect of this application, the door panel has a first connecting ear and a first through hole is provided along the thickness direction of the second swing arm. The first connecting ear is at least partially located in the first through hole and is rotatably connected to the first through hole. This implementation method is simple in structure and easy to manufacture.

[0026] In one possible implementation of the first aspect of this application, the rotating shaft mechanism further includes a fifth pin, which is rotatably connected to the inner wall of the first connecting lug and the first through hole. With this implementation, the fifth pin drives the door panel to move more smoothly.

[0027] In one possible implementation of the first aspect of this application, the hinge mechanism further includes a door panel, and the connecting block is rotatably connected to the door panel. In this implementation, the rotatable connection between the door panel and the connecting block facilitates the door panel cooperating with the connecting block to form a water droplet accommodating the screen during the rotation of the hinge mechanism. In a second aspect, a foldable screen terminal is provided, comprising a foldable screen, a housing, and a hinge mechanism, wherein the hinge mechanism is the hinge mechanism of any of the above technical solutions. The housing includes a first housing and a second housing, which are respectively connected to the hinge mechanism, and the first housing and the second housing can rotate relative to each other via the hinge mechanism; the foldable screen is located on the same side of the first housing and the second housing.

[0028] By adopting the above solution, when the hinge mechanism is applied to a foldable screen terminal, the first swing arm perfectly fills the original gap between the second swing arm and the base when the hinge mechanism is in the unfolded state. That is, when the hinge mechanism rotates to the unfolded state, the surface of the first swing arm facing the foldable screen and the surface of the base facing the foldable screen are coplanar. The first swing arm and the base can provide excellent support for the foldable screen, reducing the risk of dents appearing during folding, thereby improving the user experience. Attached Figure Description

[0029] Figure 1 is a diagram showing the unfolded state of a foldable screen terminal according to an embodiment of this application;

[0030] Figure 2 is a schematic diagram of a foldable screen terminal in a folded state according to an embodiment of this application;

[0031] Figure 3 is a schematic diagram of an intermediate state of a foldable screen terminal in an embodiment of this application;

[0032] Figure 4 is a schematic diagram of a rotating shaft mechanism structure provided by related technologies;

[0033] Figure 5 is a schematic diagram of the folded cross-sectional structure of the rotating shaft mechanism provided in Figure 4 along the BB direction;

[0034] Figure 6 is a schematic diagram of the unfolded cross-sectional structure of the rotating shaft mechanism provided in Figure 4 along the BB direction;

[0035] Figure 7 is a schematic diagram of the unfolded state of a rotating shaft mechanism in an embodiment of this application;

[0036] Figure 8 is a schematic diagram of the exploded state structure of a rotating shaft mechanism in an embodiment of this application;

[0037] Figure 9 is a schematic diagram of the exploded structure of the first swing arm and the base in an embodiment of this application;

[0038] Figure 10 is a schematic diagram of the first swing arm structure in an embodiment of this application;

[0039] Figure 11 is a schematic diagram of the first swing arm in the deployed state and its engagement with the base in an embodiment of this application;

[0040] Figure 12 is a schematic diagram of the base structure in an embodiment of this application;

[0041] Figure 13 is a schematic diagram of the explosive engagement between the second swing arm and the base in an embodiment of this application;

[0042] Figure 14 is a schematic diagram of the explosive engagement of the first swing arm and the second swing arm in an embodiment of this application;

[0043] Figure 15 is a schematic diagram of the assembly structure of the first swing arm and the second swing arm in an embodiment of this application;

[0044] Figure 16 is a schematic cross-sectional view of Figure 7 along the AA direction in an embodiment of this application;

[0045] Figure 17 is a schematic diagram of the folded cross-sectional structure of Figure 16 in an embodiment of this application;

[0046] Figure 18 is a partial structural schematic diagram of the rotating shaft mechanism in the unfolded state in an embodiment of this application;

[0047] Figure 19 is a schematic cross-sectional view of Figure 7 along the CC direction in an embodiment of this application;

[0048] Figure 20 is a schematic diagram of the folded state cross-sectional structure of Figure 19 in an embodiment of this application;

[0049] Figure 21 is a schematic diagram of the explosive engagement between the second swing arm and the connecting block in an embodiment of this application;

[0050] Figure 22 is a schematic diagram of the explosive engagement between the second swing arm and the door panel in an embodiment of this application;

[0051] Figure 23 is a schematic diagram of the assembly structure of the second swing arm and the door panel in an embodiment of this application;

[0052] Figure 24 is a schematic diagram of the explosive fit between the connecting block and the door panel in an embodiment of this application;

[0053] Figure 25 is a schematic diagram of the assembly structure of the connecting block and the door panel in an embodiment of this application. Detailed Implementation

[0054] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0055] Hereinafter, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature.

[0056] Furthermore, in this application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components shown in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation of the components in the accompanying drawings.

[0057] In this application, unless otherwise expressly specified and limited, the term "connection" shall be interpreted broadly. For example, "connection" may be a fixed connection, a detachable connection, or an integral part; it may be a direct connection or an indirect connection through an intermediate medium.

[0058] This application provides a foldable screen terminal, which can be an electronic device with a foldable display screen. For example, the foldable screen terminal can be a mobile phone with an inwardly folding screen or a mobile phone with an outwardly folding screen. Therefore, the embodiments of this application do not impose any special limitations on it. In the following embodiments, the foldable screen terminal is described using a mobile phone with an inwardly folding screen as an example.

[0059] Please refer to Figures 1 and 2. Figure 1 shows a structural schematic diagram of the folding terminal 100 provided in the embodiment of this application in the unfolded state. Figure 2 shows a structural schematic diagram of the folding terminal 100 shown in Figure 1 in the folded state. Figure 3 shows a schematic diagram of the folding terminal 100 shown in Figure 1 in the intermediate state.

[0060] Depending on the usage requirements, the terminal device 100 can be unfolded, folded, or in an intermediate state between the unfolded and folded states. When the terminal device is in the unfolded state, it is not limited to an absolutely horizontal position; due to manufacturing and equipment errors, the unfolded state can also be approximately vertical. It should be understood that the intermediate state can be any state between the unfolded and folded states, not a unique state.

[0061] The terminal device 100 includes a folding device 200 and a foldable screen 300, with the foldable screen 300 mounted on the folding device 200. The folding device 200 provides support and protection for the foldable screen 300 and can be folded or unfolded. The foldable screen 300 is a flexible screen, capable of folding or unfolding along with the folding device 200. It can be understood that the foldable screen 300 can be used to display information and provide an interactive interface for users, and can be of various types of display screens.

[0062] Among them, the aforementioned foldable screen 300 can be an organic light-emitting diode (OLED) display, an active-matrix organic light-emitting diode (AMOLED) display, a mini organic light-emitting diode (MLED) display, a micro organic light-emitting diode (MOLED) display, a quantum dot light-emitting diode (QLED) display, a liquid crystal display (LCD), etc.

[0063] The aforementioned folding device 200 is used to support the foldable screen 300. The folding device 200 may include a first housing 210, a second housing 230, and a pivot mechanism 220, which connects the first housing 210 and the second housing 230. The first portion 310 and the second portion 320 of the foldable screen 300 are respectively supported and attached to the first housing 210 and the second housing 230. The third portion 330 of the foldable screen 300 is supported and attached to the pivot mechanism 220. The first housing 210 and the second housing 2300 are rotatably connected via the pivot mechanism 220, thereby enabling the foldable screen terminal 100 to rotate between the unfolded state and the folded state. The foldable screen 300 is located on the same side of the first housing and the second housing.

[0064] With the foldable screen terminal 100 in its unfolded state, please refer to Figure 1, which is a structural diagram of the foldable screen terminal 100 in its unfolded state. At this time, the aforementioned foldable screen 300 is fully unfolded, meaning that the first part 310, the second part 320, and the third part 330 of the foldable screen 300 are on the same plane, ensuring the flatness of the foldable screen 300. It should be noted that while the first part 310, the second part 320, and the third part 330 of the foldable screen 300 are on the same plane, since creases will form in the area of ​​the third part 330 during use, "on the same plane" can also mean that the first part 310, the second part 320, and the third part 330 are approximately on the same plane. In this state, the foldable screen terminal 100 can achieve a large-screen display, providing a better user experience. For example, when watching a movie, the user can use a large screen to watch, which is beneficial to improving the viewing experience.

[0065] When the foldable screen terminal 100 is in a folded state, please refer to Figure 2, which is a schematic diagram of a foldable screen terminal 100 in a folded state according to an embodiment of this application. At this time, the first portion 310 and the second portion 320 of the foldable screen 300 are opposite each other, and the third portion 330 is bent. The folding device 200 protects the foldable screen 300 from external contact, that is, the foldable screen 300 is located between the first housing 210 and the second housing 230 of the folding device 200. In this state, the foldable screen 300 is invisible to the user, preventing scratches or damage to the foldable screen 300, thus providing effective protection for the foldable screen 300. For example, when the phone is not needed, the foldable screen terminal 100 can be rotated to a folded state to avoid damage to the foldable screen 300.

[0066] In one example, please refer to Figures 4 and 5. Figure 4 is a structural diagram of a rotating shaft mechanism provided by the related art. Figure 5 is a schematic diagram of the folded cross-sectional structure of the rotating shaft mechanism provided in Figure 4 along the BB direction. Figure 6 is a schematic diagram of the folded cross-sectional structure of the rotating shaft mechanism provided in Figure 4 along the BB direction.

[0067] The pivot mechanism 220 includes a base 50, which includes a shaft cover 20 and a support plate 30. The support plate 30 is located on the side of the base 50 away from the shaft cover 20 and is fixedly connected to the shaft cover 20. The pivot mechanism 220 also includes at least two main swing arms 10, which are located on both sides of the base 50. One end of each main swing arm 10 is rotatably connected to the base 50. During the rotation of the main swing arm 10 from the unfolded state to the folded state, the support plate 40 can move towards the shaft cover 20, thereby avoiding contact between the third part 330 and the support plate 30 of the folding screen 300.

[0068] However, in the pivot mechanism 220 of the related technology, the main swing arm 10 needs to rotate around the base 50 during the folding or unfolding process of the pivot mechanism 220. In order for the main swing arm 10 to avoid the folding screen when the pivot mechanism is in the folded state, the main swing arm 10 usually needs to be designed to mimic the shape, such as setting an arched part 104 on the main swing arm 10, as shown by the thin line box in Figure 4, and the back of the arched part 104 forms a recess. However, when the pivot mechanism 220 is in the unfolded state, as understood in Figures 5 and 6, a gap will be formed in the area where the arched part 104 is located, as shown by the dashed line box in Figure 5, and this gap is not filled by any other structure when the pivot mechanism 220 is in the flattened state. As shown in Figure 6, when the pivot mechanism 220 is in the unfolded state, there is a gap between the base 50 and the door panels 40 on both sides. When the door panels 40 are rotated to the flattened state, a hole is formed between them and the support plate 30, as shown by the dashed line box in Figure 6. This hole will reduce the impact resistance reliability of the pivot area in the flattened state.

[0069] Therefore, when the foldable screen terminal 100 is in the unfolded state, the hinge mechanism 220 provides relatively low support to the third part 330 of the foldable screen 300. At the aforementioned gaps or holes, the area corresponding to the third part 330 of the foldable screen 300 cannot receive effective support, resulting in a noticeable collapse when the user presses on this area. Using objects with pointed tips (e.g., a stylus) can easily cause this area to malfunction, damaging the foldable screen 300.

[0070] To address the aforementioned technical problems, this application provides another hinge mechanism 220, which can be used in the aforementioned foldable screen terminal 100. Please refer to Figures 7 and 8. Figure 7 is a structural diagram of a hinge mechanism 220 in an unfolded state according to an embodiment of this application, and Figure 8 is an exploded view of a hinge mechanism 220 according to an embodiment of this application.

[0071] The rotating shaft mechanism 220 includes a base 50, at least two first swing arms 11, at least two second swing arms 12, at least two connecting blocks 60, and at least two door panels 40. The base 50 has first swing arms 11, second swing arms 12, connecting blocks 60, and door panels 40 on both sides along its length (Y-axis direction). The first swing arms 11 are rotatably connected to the base 50. The base 50 can support and connect the first swing arms 11, and can be a structure of various regular or irregular shapes, such as a block structure, frame structure, shell structure, plate structure, etc., but is not limited to these. The base 50 can be a single component or an assembly comprising multiple assembled components. In some cases, the base 50 is also referred to as a main shaft, main body, etc. In some cases, the base 50 can be integrally formed or in the form of disassembled parts; for example, the base may consist of a support structure and a shaft cover.

[0072] The fact that a second swing arm 12 is provided on both sides of the base 50 means that a second swing arm 12 is provided on both sides of the base 50. Each side can have one or more second swing arms 12, and the number of second swing arms 12 on both sides of the base 50 can be the same or different. The second swing arms 12 can be connected to the base 50 through various rotatable connections, allowing the second swing arm 12 to rotate relative to the base 50 while connected. For example, the second swing arm 12 and the base 50 can be connected through an arc-shaped groove and an arc-shaped sliding part. Alternatively, the second swing arm 12 and the base 50 can be connected through a rotating shaft and a sleeve. One of the second swing arms 12 and the base 50 has a rotating shaft, and the other has a sleeve. The rotating shaft passes through the sleeve, thus achieving a rotatable connection between the second swing arm 12 and the base 50. The second swing arm 12 has an unfolded state and a folded state during its rotation around the base 50's rotating shaft. The axis of rotation of the second swing arm 12 relative to the base 50 can be set approximately parallel, although a certain deviation is permissible but close to parallel, allowing for manufacturing and assembly errors. The axis of rotation of the second swing arm 12 relative to the base 50 can be approximately parallel to the length direction of the base 50.

[0073] The rotating shaft mechanism 220 has an unfolded state and a folded state, and can switch between these two states. For example, the folded state of the rotating shaft mechanism 220 can mean that the unfolded angle of the rotating shaft mechanism is 0°. It is understood that, due to manufacturing and assembly errors, it could also be 1°, 2°, or 3°, etc., allowing for certain errors. The unfolded state of the rotating shaft mechanism 220 can mean that the rotating shaft is unfolded to 180°. Of course, it is also possible that, due to certain errors, it could also mean that the rotating shaft mechanism is unfolded to 178°, 179°, or 181°, etc. When the rotating shaft mechanism 220 is in the unfolded state, the first swing arm 11 is also in the unfolded state, and the second swing arm 12 is also in the unfolded state. It is understood that the unfolded state described in this application is not limited to full unfolding, nor does it mean that the first swing arm 11 and the second swing arm 12 are completely horizontal. Due to manufacturing and assembly errors, they could also be approximately horizontal. In this case, the two door panels 40 are on the same plane, and the two first swing arms 11 are also on the same plane. The two first swing arms 11 and the two door panels 40 are also on the same plane. Of course, there can be a certain deviation, but they are close to parallel, so manufacturing errors, assembly errors, etc. are allowed. When the rotating shaft mechanism 220 of this application is in the flattened state, the setting of the first swing arms 11 can reduce the occurrence of holes and gaps in the rotating shaft mechanism 220. Specifically, as shown in Figure 7, when the two first swing arms 11 rotate to the unfolded state, they can fill the gap between the two door panels 40 and the base. The two first swing arms 11 are located at the gap between the door panel 40 and the base 50. This allows the pivot mechanism 220 to form a complete planar support for the folding screen 300 in the pivot area. The third part 330 of the folding screen 300 is supported by the support plane formed by the two first swing arms 11 and the base 50, thereby increasing the number of support planes supporting the third part 330. This fills the gap between the two door panels 40 and the base 50, which helps to improve the support effect of the third part 330 and avoid the problem of collapse caused by user pressing. This further improves the support effect of the folding screen 300.

[0074] It is understandable that when the second swing arm 12 rotates around the base to the unfolded state, the two door panels 40 being on the same plane means that the supporting planes on the two door panels 40 that support the folding screen 300 are on the same plane, that is, the surfaces of the two door panels 40 away from the base 50 are on the same plane. The first swing arm 11 and the door panels 40 being on the same plane means that when the pivot mechanism 220 is in the flattened state, the surface of the first swing arm 11 away from the base 50 and the surface of the door panels 40 away from the base 50 that supports the folding screen 300 are on the same plane, thereby ensuring the support effect on the third part 330 of the folding screen 300.

[0075] Furthermore, when the second swing arm 12 is in the unfolded state, the first swing arm 11 and the door panel 40 can contact or abut against each other to provide better support for the folding screen 300. In some other possible examples, when the pivot mechanism 220 is in the unfolded state, there may also be a certain gap between the first swing arm 11 and the door panel 40 to accommodate assembly errors of the overall structure and the rotation requirements of the first swing arm 11 and the door panel 40, and to avoid interference between the first swing arm 11 and the door panel 40 during rotation. Therefore, this application does not impose any special limitations on this, as long as the technical effect of this application can be achieved.

[0076] Specifically, please refer to Figures 9, 10 and 11. Figure 9 is an exploded view of the first swing arm 11 and the base 50 in the embodiment of this application. Figure 10 is a structural schematic diagram of the first swing arm 11 in the embodiment of this application. Figure 11 is an assembly schematic diagram of the first swing arm 11 and the base 50 when the first swing arm 11 is rotated to the unfolded state in the embodiment of this application.

[0077] Please refer to Figure 9. The first swing arm 11 is rotatably connected to the base 50. During the rotation and folding process of the rotating shaft mechanism 220, the first swing arm 11 can switch between a folded state and an unfolded state around the base 50. Specifically, the base 50 is provided with a first rotating groove 55, a first recess 53, and a second recess 54. Along the length direction of the base 50, which is the direction indicated by Y, the first recess 53 and the second recess 54 are respectively located on both sides of the first rotating groove 55. The first recess 53 and the second recess 54 are formed by recessing a certain depth downward from the first surface of the base 50. Specifically, the first recess 53 has a first groove sidewall and a second groove sidewall provided along the length direction of the base 50, and a third groove sidewall along the width direction of the base. Along the thickness direction of the base 50, the first groove 53 also has a first groove bottom surface. The second groove 54 has a fourth groove sidewall and a fifth groove sidewall arranged along the length direction of the base 50, and a sixth groove sidewall arranged along the width direction of the base. The second groove 54 also has a second groove bottom surface arranged along the thickness direction of the base 50. The width direction of the base 50 is the X-axis direction in the figure, and the thickness direction of the base 50 is the Z-axis direction in the figure. The first groove 53 has a first pin hole 57 on the groove side away from the first rotating groove 55, and the second groove 54 has a second pin hole 56 on the groove side away from the first sliding groove 55. It should be noted that the first pin hole 57 can be arranged on the first groove sidewall or the second groove sidewall, and the second pin hole 56 can be arranged on the fourth groove sidewall or the fifth groove sidewall.

[0078] The first swing arm 11 includes a first rotating part 116, a first filling part 112, and a second filling part 113, arranged sequentially along the length of the first swing arm 11. The first filling part 112 and the first rotating part 116 are located on opposite sides of the first rotating part 116. The first rotating part 116, the first filling part 112, and the second filling part 113 can be integrally formed or separately formed; this application does not limit their specific connection method. The first filling part 112 can have a specific regular shape or an irregular shape. The shape of the second filling part 113 can be understood by referring to the first filling part 112, and will not be described in detail. The length direction of the first swing arm 11 is the same as the length direction of the base 50, i.e., the Y-axis direction in the figure.

[0079] Please refer to Figures 10 and 11 to understand the specific cooperation between the first swing arm 11 and the base 50. The first rotating part 116 cooperates with the first rotating groove 55. The first rotating part 116 of the first swing arm 11 is disposed in the first rotating groove 55 on the base 50. During the folding or unfolding process of the rotating shaft mechanism 220, the first rotating part 116 of the first swing arm 11 can cooperate to rotate in the first rotating groove 55. When the rotating shaft mechanism 220 rotates to the unfolded state, the first rotating part 116 also rotates to the unfolded state, and the first rotating part 116 just fills the first rotating groove 55. The first filling part 112 cooperates with the first groove 53, that is, the first filling part 112 is disposed in the first groove 53. It can be understood that the first filling part 112 is at least partially located in the first groove 53. When the rotating shaft mechanism 220 is in the unfolded state, the first filling part 112 can just fill the first groove 53, so that the first filling part 112 can form a complete support plane at the first groove 53 to support the folding screen 300. The second filling portion 113 engages with the second groove 54, meaning the second filling portion 113 is disposed within the second groove 54. It can be understood that the second filling portion 113 is at least partially located within the second groove 54. When the pivot mechanism 220 is in the unfolded state, the second filling portion 113 just fills the second groove 54, thus forming a complete supporting plane at the first groove 54 to support the folding screen 300.

[0080] Understandably, during the folding or unfolding of the rotating shaft mechanism 220, the first filling portion 112 of the first swing arm 11 rotates relative to the first groove 53 of the base 50, and the second filling portion 113 of the first swing arm 11 rotates relative to the second groove 54 of the base 50. When the rotating shaft mechanism 220 is in a flattened state, the first filling portion 112 just fills the first groove 53, and the first surface of the first filling portion 112 is on the same horizontal plane as the first surface of the base 50. The second filling portion 113 just fills the second groove 54, and the first surface of the second filling portion 113 is also on the same horizontal plane as the first surface of the base 50. At this time, the first surface of the first swing arm 11 and the first surface of the base 50 are coplanar. The coplanarity mentioned here can mean approximately on the same horizontal plane, and due to assembly and manufacturing errors, there may also be a certain angular error. When the pivot mechanism 220 is in the unfolded state, the first swing arm 11 fills the first groove 53, the second groove 54 and the first rotation groove 55 on the base 50, so that the connection between the first swing arm 11 and the base 50 can form a relatively complete plane, avoiding gaps or holes when the pivot mechanism 220 is in the unfolded state, and is used to fully support the folding screen 300, optimize the reliability of the folding screen 300 under impact and spike conditions, thereby improving the user experience.

[0081] It should be noted that the first surface of the base 50 is the side of the base 50 facing the folding screen 300, that is, the side used to support the third part 330 of the folding screen 300. The first surface of the first swing arm 11 is the side of the first swing arm 11 facing the folding screen 300 when the rotating shaft mechanism 220 is in the unfolded state. When the first swing arm 11 is a one-piece structure, the first surfaces of the first filling part 112 and the second filling part 113 belong to the same plane, that is, the first surface of the first swing arm 11, and the first filling part 112 and the second filling part 113 rotate synchronously. When the first swing arm 11 is a split structure, the first surface of the first swing arm 11 is the plane formed by the first planes of the first filling part 112 and the second filling part 113. The first plane of the first filling part 112 and the first plane of the second filling part 113 can be approximately on the same plane, but due to processing and manufacturing errors, a certain angular deviation is allowed.

[0082] Referring again to Figure 10, in some embodiments, the first swing arm 11 is further provided with a first pin 114 and a second pin 115. The first pin 114 is located on the side of the first filling portion 112 away from the first rotating portion 116, and the second pin 115 is located on the other side of the second filling portion 113 away from the first rotating portion 116. In some embodiments, the first pin 114 may also be located on the side of the first filling portion 112 close to the first rotating portion 116, and the second pin 115 may be located on the side of the second filling portion 113 close to the first rotating portion 116. In some embodiments, the positions of the first pin 114 and the second pin 115 can also be arbitrarily combined. For example, the first pin 114 may be located on the side of the first filling portion 112 away from the first rotating portion 116, and the second pin 115 may be located on the side of the second filling portion 113 close to the first rotating portion 116. This application does not limit their specific positions.

[0083] Specifically, the first pin 114 engages with the first shaft hole 57, and the second pin 115 engages with the second shaft hole 56. That is, the first pin 114 on the first swing arm 11 is disposed in the first pin hole 57, and the first pin 114 can rotate within the first pin hole 57. The second pin 115 on the first swing arm 11 is disposed in the second pin hole 56, and the second pin 115 can rotate within the second pin hole 56, thereby realizing the rotational connection between the first swing arm 11 and the base 50. During the folding or unfolding process of the rotating shaft mechanism 220, the first pin 114 rotates in the first shaft hole 57, the second pin 115 rotates in the second pin hole 56, and the first swing arm 11 rotates around the base 50.

[0084] It should be noted that the specific connection method between the first pin 114 and the first swing arm 11 and the second pin 115 and the first swing arm 11 is not limited, as long as the first swing arm 11 and the base 50 can be rotated. For example, the first pin 114 and the second pin 115 can be detachably connected to the first swing arm 11, or the first pin 114 and the second pin 115 can be integrally formed with the first swing arm 11.

[0085] In some embodiments, a first notch 117 is provided between the first rotating part 116 and the first filling part 112, and a second notch 118 is provided between the first rotating part 116 and the second filling part 113. The first notch 117 is used to accommodate the protrusion between the first groove 53 and the first rotating groove 55 on the base 50, and the second notch 118 is used to accommodate the protrusion between the second groove 54 and the first rotating groove 55 on the base 50.

[0086] Please refer to Figures 12 and 13. Figure 12 is a schematic diagram of the base 50 structure according to an embodiment of this application, and Figure 13 is an exploded view of the second swing arm 12 and the base 50 according to an embodiment of this application. The second swing arm 12 is rotatably connected to the base 50. During the folding or unfolding process of the rotating shaft mechanism 220, the second swing arm 12 can rotate around the base 50 to achieve unfolding or folding.

[0087] Specifically, referring to Figure 12, the base 50 is also provided with a first arc-shaped sliding groove 58 and a second arc-shaped sliding groove 59. Along the length direction of the base 50, the first arc-shaped sliding groove 58 and the second arc-shaped sliding groove 59 are respectively located on both sides of the first rotating groove 55. Along the thickness direction of the base 50, the first arc-shaped sliding groove 58 is stacked with the first groove 53, and the first arc-shaped sliding groove 58 is located on the side of the bottom surface of the first groove of the first groove 53 that faces away from the first surface of the base 50. The second arc-shaped sliding groove 59 is stacked with the second groove 54, and the second arc-shaped sliding groove 59 is located on the side of the bottom surface of the second groove of the second groove 54 that faces away from the first surface of the base 50.

[0088] As shown in Figure 13, one end of the second swing arm 12 is provided with a first sliding part 121 and a second sliding part 122. Both the first sliding part 121 and the second sliding part 122 are arc-shaped sliding parts, and the first sliding part 121 and the second sliding part 122 are spaced apart along the width direction of the second swing arm 12. The width direction of the second swing arm 12 is the same as the length direction of the base 50, that is, the Y-axis direction. The first sliding part 121 is disposed in the first arc-shaped slide groove 58, and the second sliding part 122 is disposed in the second arc-shaped slide groove 59. The first sliding part 121 cooperates with the first arc-shaped slide groove 58 and can slide relative to the first arc-shaped slide groove 58. The second sliding part 122 cooperates with the second arc-shaped slide groove 59 and can slide relative to the second arc-shaped slide groove 59, so that the second swing arm 12 can rotate relative to the base 50. When the rotating shaft mechanism 220 is in the unfolded state, the second swing arm 12 rotates to the unfolded state. When the rotating shaft mechanism 220 is in the folded state, the second swing arm 12 rotates to the folded state.

[0089] In this design, both the first arc-shaped groove 58 and the second arc-shaped groove 59 are arc-shaped structures, which can be of various forms. The first sliding part 121 and the second sliding part 122 can be arc-shaped slide rails or other arc-shaped plate structures, as long as the first arc-shaped groove 58 and the first sliding part 121 can slide relative to the second arc-shaped groove 59 and the second sliding part 122 in a sliding contact engagement along an arc-shaped trajectory. The first arc-shaped groove 58 and the second arc-shaped groove 59 can be integrally formed on the base 50 or can be separately formed. In addition, the first sliding part 121 and the second sliding part 122 can be integrally formed with the second swing arm 12 or can be separately formed and fixedly connected. In some embodiments, the arc-shaped groove can be provided on the base 50 and the sliding part can be provided on the second swing arm 12, as long as a rotational connection engagement with the base can be achieved. This application does not limit the specific location of the arc-shaped groove and the sliding part.

[0090] After introducing the implementation method of the rotatable connection between the second swing arm 12 and the base 50, the following section will continue to introduce the implementation method of the rotatable connection between the second swing arm 12 and the first swing arm 11 with reference to the attached drawings.

[0091] Please refer to Figures 14 and 15. Figure 14 is an exploded view of the first swing arm 11 and the second swing arm 12 in an embodiment of this application, and Figure 15 is an assembled view of the first swing arm 11 and the second swing arm 12. The first swing arm 11 and the second swing arm 12 are rotatably connected, and the second swing arm 12 can drive the first swing arm 11 to move. During the transition between the folded and unfolded states of the rotating shaft mechanism 220, the second swing arm 12 can drive the first swing arm 11 to rotate from the folded state to the unfolded state.

[0092] As shown in Figures 14 and 15, the second swing arm 12 near the base 50 is also provided with a third notch 1210. The third notch 1210 is located between the first sliding part 121 and the second sliding part 122, with the first sliding part 121 and the second sliding part 122 spaced apart to form the third notch 1210. The second swing arm 12 near the base 50 is also provided with a third pin hole 1211 and a fourth pin hole 1221. The third pin hole 1211 is located in the first sliding part 121, and the fourth pin hole 1221 is located in the second sliding part 122. Specifically, the third pin hole 1211 is located on the side of the first sliding part 121 near the third notch 1210, and the fourth pin hole 1221 is located on the side of the second sliding part 122 near the third notch 1210. It should be noted that the specific positions of the third pin hole 1211 and the fourth pin hole 1221 on the second sliding part 121 and the third sliding part 122 are not limited. In some embodiments, for example, the third pin hole 1211 may be located on the side of the first sliding part 121 away from the third notch 1210, and the fourth pin hole 1221 may be located on the side of the second sliding part 122 away from the third notch 1210.

[0093] The first swing arm 11 and the second swing arm 12 rotate in coordination. The first rotating part 116 is disposed in the third notch 1210. It can be understood that the first rotating part 116 is at least partially located in the third notch 1210. The rotating shaft mechanism 220 also includes a third pin 1112, which is fixedly connected to the second swing arm 12. The third pin 1112 and the second swing arm 12 can be connected by welding, snap-fitting, or screw connection. The first swing arm 11 is provided with a first sliding groove hole 1161, and the third pin 1112 is slidably connected to the first sliding groove hole 1161. The third pin 1112 can be cylindrical, and the center line of the third pin 1112 extends along the parallel Y-circumference direction, which helps to improve the reliability of the sliding of the third pin 1112 in the first sliding groove hole 1161 and prevents problems such as jamming to a certain extent. It can be understood that in other examples, the third pin 1112 can also be other shapes, such as a regular hexagonal prism, a regular octagonal prism, etc.

[0094] The third pin 1112 passes sequentially through the third pin hole 1211, the first sliding groove hole 1161, and the fourth pin hole 1221. The third pin 1112 is fixedly connected to the second swing arm 12, and can be fixedly connected to the third pin hole 1211 and the fourth pin hole 1221 on the second swing arm 12. It should be noted that the method of fixing the third pin 1112 to the second swing arm 12 is not limited here; for example, it can be fixed by a nut or by welding.

[0095] Please refer to Figures 16 and 17 for further understanding. Figure 16 is a cross-sectional view of the rotating shaft mechanism 220 in Figure 7 in its unfolded state along the AA direction, and Figure 17 is a cross-sectional view of the rotating shaft mechanism 220 in Figure 16 in its folded state. The first sliding groove hole 1161 has a first position and a second position, which are spaced apart along the width direction of the base 50. As shown in Figure 16, in the unfolded state, the third pin 1112 engages with the first sliding groove hole 1161 at the first position. During the transition of the rotating shaft mechanism 220 from the unfolded state to the folded state, the third pin 1112 slides from the first position to the second position. As shown in Figure 17, in the folded state, the third pin 1112 engages with the first sliding groove hole 1161 at the second position.

[0096] During the folding or unfolding process of the rotating shaft mechanism 220, the third pin 1112 and the first sliding hole 1161 can slide relative to each other as the second swing arm 12 and the first swing arm 11 rotate. The second swing arm 12 drives the first swing arm 11 to rotate through the third pin 1112, which switches between a first position and a second position, thereby enabling the first swing arm 11 and the second swing arm 12 to rotate in coordination during the folding or unfolding process of the rotating shaft mechanism 220. The first swing arm 11 and the second swing arm 12 are rotated and slidably connected through the mutually cooperating third pin 1112 and the first sliding hole 1161. The first sliding hole 1161 can be an arc-shaped hole. In other embodiments, the first sliding hole 1161 can also be a straight hole or a broken-line hole, which is not limited in this application.

[0097] It is understood that in some other embodiments, the third pin 1112 may be disposed on the first swing arm 11, and the first rotating part 116 may be disposed on the second swing arm 12, as long as one of the first sliding groove hole 1161 of the third pin 1112 and the first rotating part 116 is disposed on the first swing arm 11, and the other is disposed on the second swing arm 12.

[0098] Please refer to Figures 18 and 19. Figure 18 is a partial structural schematic diagram of the rotating shaft mechanism 220 in the unfolded state according to an embodiment of this application, and Figure 19 is a cross-sectional schematic diagram of the rotating shaft mechanism 220 in Figure 7 along the CC direction.

[0099] As shown in Figures 18 and 19, the rotating shaft mechanism 220 rotates to the unfolded state. During the process of the rotating shaft mechanism 220 changing from the folded state to the unfolded state, the second swing arm 12 drives the door panel 40 to rotate from the folded state to the unfolded state. At the same time, the second swing arm 12 drives the first swing arm 11 to rotate. When the first swing arm 11 rotates to the flattened state, it just fills the gap between the door panel 40 and the base 50, as shown by the dashed box in Figure 18. The first swing arm 11 just fills the groove and slide on the base 50 and the gap between the door panel 40 and the base 50. The first surface M1 of the first swing arm 11 and the first surface M2 of the door panel 40 are coplanar. It can be understood that, due to manufacturing tolerances and other reasons, the coplanarity here means that the first surface M1 of the first swing arm 11 and the first surface M2 of the door panel 40 can be approximately on the same horizontal plane. It is understandable that the first surface M2 of the door panel 40 is the surface used to support the folding screen 300. That is, when the pivot mechanism 220 rotates to the unfolded state, the first swing arm 11 and the door panel 40 can provide better support for the folding screen 300, reducing the risk of dents appearing on the folding screen 300 when it is in the unfolded state, thereby improving the user experience.

[0100] As shown in Figure 19, when the pivot mechanism 220 is in the unfolded state, the first swing arm 11 rotates to the unfolded state. The first surface M1 of the first swing arm 11, the first surface M2 of the door panel 40, and the first surface M3 of the base 50 are coplanar, so that the first swing arm 11, the door panel 40, and the base 50 form a relatively complete plane, which together support the folding screen 300. This avoids the presence of holes in the pivot area of ​​the pivot mechanism 220, which would prevent it from providing a complete support effect for the folding screen 300.

[0101] Please refer to Figure 20, which is a cross-sectional view of the folded structure in Figure 19. In some embodiments, a first limiting structure exists between the first swing arm 11 and the second swing arm 12, as shown by the dashed box in Figure 20. When the pivot mechanism 220 is in the folded state, the first limiting structure restricts the relative movement between the first swing arm 11 and the second swing arm 12, limiting the second swing arm 12 from moving towards the base. When the pivot mechanism 220 is in the folded state, in the event of a drop, if the pivot mechanism 220 is impacted, assuming the middle frame remains stationary, the impact force will push the base 50 upward, thereby compressing the folded screen 300. The more the base 50 moves upward, the more the folded screen 300 is compressed, and the higher the risk of damage to the folded screen 300. By setting a first limiting structure between the first swing arm 11 and the second swing arm 12, when the pivot 220 is subjected to a drop impact in the folded state, the folded screen 300 is squeezed. The folded screen 300 will apply screen squeezing force to the first swing arm 11, causing the first swing arm 11 to squeeze towards the second swing arm 12, and then forming other forms of interaction such as friction or abutment with the second swing arm 12. Under this interaction, the first swing arm 11 will prevent the second swing arm 12 from being impacted and sliding clockwise with the base 50, thereby reducing the upward movement of the base 50 and improving the drop resistance of the pivot mechanism 220.

[0102] In some embodiments, as understood with reference to FIG14, the first limiting structure includes a first abutment surface 101 disposed on the first swing arm 11 and a second abutment surface 102 disposed on the second swing arm 12. The first abutment surface 101 and the second abutment surface 102 are opposite to each other and can contact each other. The first abutment surface 101 is disposed at the end of the first swing arm 11 away from the base 50. The second swing arm 12 includes a sliding portion 120 and a connecting portion 130. The sliding portion 120 is fixedly connected to the connecting portion 130 and rotatably connected to the base 50. The second abutment surface 102 is located at the end of the connecting portion 130 near the base 50. By providing a first abutment surface 101 and a second abutment surface 102 on the first swing arm 11 and the second swing arm 12 respectively, when the rotating shaft mechanism 220 is in the folded state, in the event of a fall, the first abutment surface 101 can abut or rub against the second abutment surface 102, thereby restricting the second swing arm 102 from continuing to move relative to the base 50, thus helping to ensure the structural and functional integrity of the rotating shaft mechanism 220. Furthermore, the structure of the first abutment surface 101 and the second abutment surface 102 abutting against each other is also convenient to manufacture, and the structure is relatively simple and effective. It should be noted that during the normal folding or unfolding process of the rotating shaft mechanism 220, the first limiting structure does not restrict the first swing arm 11 and the second swing arm 12 from switching between the folded and unfolded positions.

[0103] In some embodiments, the first abutting surface 101 may be a plane or a curved surface; the second abutting surface 102 may be a plane or a curved surface; of course, the first abutting surface 101 may also have a part of its structure that is a plane and another part that is a curved surface, and the second abutting surface 102 may also have a part of its structure that is a plane and another part that is a curved surface.

[0104] One of the first contact surface 101 and the second contact surface 102 is a plane, while the other can be a stepped surface formed by the two surfaces. The planar structure on the first contact surface 101 cooperates with the stepped structure on the second contact surface 102, serving as a limiting function when the pivot mechanism 220 is in the folded state. When the first pivot mechanism 220 is in the folded state, the first contact surface 101 and the second contact surface 102 can be in contact or have a certain gap. This gap can be set as required by the design or formed due to manufacturing errors. However, in the event of a drop, since the base 50 of the pivot mechanism 220 touches the ground, the first contact surface 101 and the second contact surface 102 will rub or abut against each other, realizing the transmission of force. The first swing arm 11 will prevent the second swing arm 12 from sliding relative to the base 50, thereby reducing the possibility of squeezing the space accommodating the folding screen 300, thus ensuring the structural integrity and functional stability of the folding screen 300, and improving the safety of the folding screen 300 in the event of a drop.

[0105] Please refer to Figure 21, which is an exploded view of the second swing arm 12 and the connecting block 60. The second swing arm 12 and the connecting block 60 are rotatably connected. In some embodiments, the end of the second swing arm 12 away from the base 50 is provided with two first connecting portions 123, which are spaced apart along the width direction of the second swing arm 12, and a fourth notch 124 is formed between the two first connecting portions 123. The connecting block 60 is provided with a second connecting portion 61, and a third groove 62 is provided on each side of the second connecting portion 61 along the length direction of the connecting block 60. The two first connecting portions 123 on the second swing arm 12 are respectively disposed in the two third grooves 62 on the connecting block 60, and the second connecting portion 61 on the connecting block 60 is disposed in the fourth notch 124 formed between the two first connecting portions 123 on the second swing arm 12. It should be noted that the width direction of the second swing arm 102 is the same as the length direction of the base 50, that is, parallel to the Y-axis direction. The length direction of the connecting block 60 is the same as the length direction of the base 50, that is, parallel to the Y-axis direction. It can be understood that the length direction of the base 50, the width direction of the second swing arm 102 and the length direction of the connecting block 60 are in the same direction.

[0106] The rotating shaft mechanism 220 also includes a fourth pin 125, which is used to connect the second swing arm 12 and the connecting block 60. The two first connecting portions 123 each have through holes along the width direction of the second swing arm 12, and the second connecting portion 61 also has through holes along the length direction of the connecting block 60. Along the length direction of the connecting block 60, two first grooves 62 have receiving holes on their sides away from the second connecting portions 61. These receiving holes are used to receive the first pin 125. The first pin 125 passes through the through holes on the two first connecting portions 123 and the through hole on the second connecting portion 61 of the second swing arm 12, respectively. The first pin 125 engages with the receiving holes on the sidewalls of the two first grooves 62 to rotatably connect the second swing arm 12 and the connecting block 60.

[0107] It is understood that the second swing arm 12 and the connecting block 60 are rotatably connected via a solid shaft. The fourth pin 125 can be integrally formed with the second swing arm 12, or it can be two separate components, as long as it enables the second swing arm 12 to be rotatably connected to the connecting block 60 via the fourth pin 125. In some embodiments, the second swing arm 12 can also be slidably connected to the connecting block 60. For example, the second swing arm 12 is provided with a sliding part, which can be arc-shaped or plate-shaped. The connecting block 60 is provided with a sliding fit part, which can be an arc-shaped groove or a straight groove, as long as it enables the rotatable connection between the second swing arm 12 and the connecting block 60.

[0108] Please refer to Figures 22 and 23. Figure 22 is an exploded view of the second swing arm 12 and the door panel 40 in an embodiment of this application, and Figure 23 is an assembly structure diagram of the second swing arm 12 and the door panel 40 in an embodiment of this application. The second swing arm 12 is rotatably connected to the door panel 40, and the second swing arm 12 can drive the door panel to rotate during rotation.

[0109] In some embodiments, the second swing arm 12 and the door panel 40 are connected by a high-pair connection. A first through hole 126 is provided along the thickness direction of the second swing arm 12. The door panel 40 has a first connecting ear 401 with an arc-shaped through hole 4011. The first connecting ear 401 is inserted into the first through hole 126, and at least partially located within it. A fifth pin 1240 passes through the arc-shaped through hole 4011 and is also inserted into the second swing arm 12. The fifth pin 1240 rotatably connects the first connecting ear 401 and the inner wall of the first through hole 126. When the second swing arm 12 rotates relative to the base 50, the fifth pin 1240 can move along the arc-shaped path of the arc-shaped through hole 4011. This facilitates the determination of the relationship between the second swing arm 12 and the door panel 40, allowing the door panel 40 to rotate relative to the connecting block 60. When the rotating shaft mechanism 220 is in the unfolded state, the thickness direction of the second swing arm 12 is perpendicular to the length direction of the base 50.

[0110] It is understandable that in some embodiments, the second swing arm 12 and the door panel 40 may also be connected by a lower pair, as long as the door panel 40 can be normally unfolded or folded during the folding or unfolding process of the pivot mechanism 220.

[0111] Please refer to Figures 24 and 25. Figure 24 is an exploded view of the connection block 60 and the door panel 40 in an embodiment of this application, and Figure 25 is an assembly structure diagram of the connection block 60 and the door panel 40 in an embodiment of this application. The connection block 60 and the door panel 40 are rotatably connected.

[0112] The door panel 40 is provided with a first arc surface structure 403, and the connecting block 60 is provided with a second arc surface structure 601. The first arc surface structure 403 and the second arc surface structure 601 cooperate with each other to enable the door panel 40 to rotate relative to the connecting block 60.

[0113] It is understood that in some embodiments, the door panel 40 and the connecting block 60 may also adopt other matching methods. For example, the door panel 40 and the connecting block 60 may also be connected by a pivot, as long as the door panel 40 can rotate in coordination with the connecting block 60.

[0114] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0115] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A hinge mechanism for supporting a folding screen, characterized in that, include: Base; The first swing arm and the second swing arm are located on the same side of the base. The first swing arm and the second swing arm are rotatably connected to the base, and the first swing arm and the second swing arm are rotatably and slidably connected. During the rotation of the second swing arm relative to the base, the second swing arm drives the first swing arm to move. The rotating shaft mechanism has an unfolded state and a folded state. When the rotating shaft mechanism is in the unfolded state, the surface of the first swing arm facing the folded screen and the surface of the base facing the folded screen are coplanar.

2. The rotating shaft mechanism according to claim 1, characterized in that, The pivot mechanism also includes a door panel, and the second swing arm is rotatably connected to the door panel. When the pivot mechanism is in the unfolded state, the first swing arm is located between the base and the door panel, and the surface of the door panel facing the folding screen is coplanar with the surface of the first swing arm facing the folding screen.

3. The rotating shaft mechanism according to claim 1 or 2, characterized in that, The base is provided with a first groove and a first rotating groove, and the first groove and the first rotating groove are spaced apart along the length of the base. The first swing arm includes a first filling part and a first rotating part, and the first filling part and the first rotating part are spaced apart along the length direction of the first swing arm; The first filling part mates with the first groove, and the first rotating part mates with the first rotating slot; When the pivot mechanism is in the unfolded state, the first filling part is at least partially located in the first groove, and the surface of the first filling part facing the folding screen is coplanar with the surface of the base facing the folding screen.

4. The rotating shaft mechanism according to claim 3, characterized in that, The base is also provided with a second groove, which is located on the side of the first groove away from the first rotating groove along the length of the base; The first swing arm further includes a second filling portion, which is disposed on the side of the first filling portion away from the first rotating portion along the length direction of the first swing arm; The second filling part cooperates with the second groove. When the rotating shaft mechanism is in the unfolded state, the second filling part is at least partially located in the second groove. The surface of the second filling part facing the folding screen is coplanar with the surface of the base facing the folding screen.

5. The rotating shaft mechanism according to claim 3 or 4, characterized in that, One of the first groove and the first filling part is provided with a first pin hole, and the other is provided with a first pin shaft. The first pin shaft is disposed in the first pin hole so that the first swing arm is rotatably connected to the base.

6. The rotating shaft mechanism according to claim 5, characterized in that, The axial direction of the first pin is consistent with the length direction of the base.

7. The rotating shaft mechanism according to any one of claims 3-6, characterized in that, The base is also provided with a first arc-shaped sliding groove. Along the thickness direction of the base, the first arc-shaped sliding groove and the first groove are stacked. The first arc-shaped sliding groove is located on the side of the first groove away from the base and facing the folding screen. The second swing arm has a first sliding part at one end facing the base. The first sliding part cooperates with the first arc-shaped groove so that the second swing arm is rotatably connected to the base.

8. The rotating shaft mechanism according to any one of claims 3-7, characterized in that, The first rotating part is provided with a first sliding groove hole, and the rotating shaft mechanism further includes a third pin, which connects the first sliding groove hole and the first sliding part so that the first swing arm and the second swing arm are slidably connected. The first sliding groove has a first position and a second position. When the rotating shaft mechanism switches between the unfolded state and the folded state, the third pin switches between the first position and the second position. Along the width direction of the base, the first position and the second position are spaced apart.

9. The rotating shaft mechanism according to claim 8, characterized in that, The first sliding part is an arc-shaped structure, and a third pin hole is provided on the side of the arc-shaped structure facing the folding screen. The third pin passes through the first sliding groove hole and the third pin hole.

10. The rotating shaft mechanism according to claim 8 or 9, characterized in that, The second swing arm also includes a second sliding part. The first sliding part and the second sliding part are spaced apart along the length direction of the base. A third notch is provided between the first sliding part and the second sliding part. The first rotating part is at least partially disposed in the third notch.

11. The rotating shaft mechanism according to any one of claims 1-10, characterized in that, A first limiting structure is provided between the first swing arm and the second swing arm. When the rotating shaft mechanism is in a folded state, the first limiting structure can restrict the second swing arm from moving towards the base.

12. The rotating shaft mechanism according to claim 11, characterized in that, The first limiting structure includes a first abutting surface disposed on the first swing arm and a second abutting surface disposed on the second swing arm; when the rotating shaft mechanism is in a folded state, the first abutting surface and the second abutting surface are opposite to each other.

13. The rotating shaft mechanism according to claim 12, characterized in that, The first abutting surface is located at the end of the first swing arm away from the base. The second swing arm includes a sliding part and a connecting part connected to each other. The sliding part is rotatably connected to the base. The second abutting surface is located at the end of the connecting part near the base.

14. The rotating shaft mechanism according to any one of claims 1-13, characterized in that, The rotating shaft mechanism further includes a connecting block, and the second swing arm is rotatably connected to the connecting block; when the rotating shaft mechanism is in the unfolded state, the connecting block is located on the side of the second swing arm away from the first swing arm.

15. The rotating shaft mechanism according to claim 14, characterized in that, The end of the second swing arm away from the base is provided with two first connecting parts, and a fourth notch is provided between the two first connecting parts; The connecting block is provided with a second connecting part and two third grooves. Along the length direction of the base, the two third grooves are respectively provided on both sides of the second connecting part. The two first connecting parts respectively cooperate with the two third grooves so that the second swing arm is rotatably connected to the connecting block.

16. The rotating shaft mechanism according to any one of claims 2-15, characterized in that, The door panel has a first connecting ear and a first through hole along the thickness direction of the second swing arm. The first connecting ear is at least partially located in the first through hole and is rotatably connected to the first through hole.

17. The rotating shaft mechanism according to claim 16, characterized in that, The rotating shaft mechanism further includes a fifth pin, which is rotatably connected to the inner wall of the first connecting lug and the first through hole.

18. The rotating shaft mechanism according to any one of claims 14-17, characterized in that, The rotating shaft mechanism also includes a door panel, and the connecting block is rotatably connected to the door panel.

19. A foldable screen terminal, characterized in that, include: The folding screen, the housing, and the pivot mechanism as described in any one of claims 1-18, wherein the housing includes a first housing and a second housing, the first housing and the second housing are respectively connected to the pivot mechanism, and the first housing and the second housing are rotatable relative to each other through the pivot mechanism; the folding screen is located on the same side of the first housing and the second housing.

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