Rotating shaft mechanism and electronic equipment

Abstract

The invention provides a rotating shaft mechanism and electronic equipment. The rotating shaft mechanism comprises a base, a first swing arm, a second swing arm, a first rotating arm and a second rotating arm. The first swing arm and the second swing arm are connected to the two opposite sides of the base in the width direction correspondingly and rotationally connected with the base. The first rotary arm is rotationally connected with the base and rotationally and slidably connected with the first swing arm. The second rotating arm is rotationally connected with the base, one end of the second rotating arm is rotationally and slidably connected with the second swing arm, and the other end of the second rotating arm is rotationally and slidably connected with the end, back to the first swing arm, of the first rotating arm. The rotating direction of the first swing arm is opposite to that of the second swing arm, and the rotating direction of the first rotating arm is opposite to that of the second rotating arm. The rotating shaft mechanism can solve the technical problems that a synchronous assembly in an existing rotating shaft mechanism is complex in structure and high in manufacturing cost.

Description

Technical Field

[0001] This application relates to the field of electronic product technology, and in particular to a rotating shaft mechanism and electronic device. Background Technology

[0002] With the development of technology, the form factor (ID) of electronic devices (such as mobile phones and tablets) is trending from candybar phones to foldable phones. Foldable phones, when open, feature large screens, fully satisfying consumers' visual experience, while their compact size when closed makes them easy to carry. Foldable phones generally require a synchronization component to achieve synchronized rotation of the structures on both sides of the hinge. In existing technologies, synchronized rotation of foldable phones is typically achieved through synchronized gears, but this type of synchronization component has a complex structure and high manufacturing cost. Summary of the Invention

[0003] This application provides a rotating shaft mechanism and electronic device, which can solve the technical problems of complex structure and high manufacturing cost of the synchronization component in the existing rotating shaft mechanism.

[0004] In a first aspect, this application provides a pivot mechanism. The pivot mechanism is applied to an electronic device. The electronic device further includes a first housing and a second housing. The pivot mechanism is connected between the first housing and the second housing. The first housing and the second housing rotate relative to each other via the pivot mechanism, thereby switching the electronic device between a folded state and an unfolded state.

[0005] The rotating shaft mechanism includes a base and a synchronization assembly. The synchronization assembly includes a first swing arm, a second swing arm, a first rotary arm, and a second rotary arm. The first swing arm and the second swing arm are respectively connected to opposite sides of the base in the width direction, and both are rotatably connected to the base. The first swing arm is used to connect to a first housing, and the second swing arm is used to connect to a second housing. The first rotary arm is rotatably connected to the base and is also rotatably and slidably connected to the first swing arm. The second rotary arm is rotatably connected to the base, and one end of the second rotary arm is rotatably and slidably connected to the second swing arm, while the other end is rotatably and slidably connected to the end of the first rotary arm opposite to the first swing arm.

[0006] The rotation direction of the first swing arm is opposite to that of the second swing arm, and the rotation direction of the first rotary arm is opposite to that of the second rotary arm.

[0007] When the first swing arm rotates relative to the base, it drives the first rotary arm to rotate relative to the base. The first rotary arm drives the second rotary arm to rotate relative to the base, thereby causing the second rotary arm to drive the second swing arm to rotate relative to the base, thus realizing the synchronous rotation of the first and second swing arms, and the synchronous rotation of the rotating shaft mechanism and electronic equipment.

[0008] The rotating shaft mechanism provided in this application embodiment connects a first swing arm and a second swing arm between a first swing arm and a second swing arm, and makes the first swing arm rotate and slide connected to the first swing arm, rotate connected to the base, and rotate and slide connected to the second swing arm, and makes the second swing arm rotate connected to the base and rotate and slide connected to the second swing arm. This enables the synchronous rotation of the first swing arm and the second swing arm, as well as the synchronous rotation of the rotating shaft mechanism and the electronic equipment. There is no need to set a synchronization gear. While ensuring the synchronous rotation requirement of the rotating shaft mechanism, the structure of the synchronization component can be simplified, the processing and manufacturing difficulty of the rotating shaft mechanism can be reduced, and the processing and production costs of the rotating shaft mechanism and the electronic equipment can be reduced.

[0009] In one possible implementation, the rotating shaft mechanism has an unfolded state and a folded state. When the rotating shaft mechanism is in the unfolded state, the first swing arm and the second swing arm are located on opposite sides of the base in the width direction, and both are unfolded relative to the base. The length directions of both the first and second swing arms are parallel to the width direction of the base. When the rotating shaft mechanism is in the folded state, the first and second swing arms are arranged opposite each other along the width direction of the base, and the length directions of the first and second swing arms intersect.

[0010] In one possible implementation, the first and second rotating arms are at least partially opposite each other along the length of the base. That is, the orthographic projections of the first and second rotating arms onto a plane perpendicular to the length of the base at least partially overlap. In other words, the first and second rotating arms reuse the space of the pivot mechanism in the width direction. This reduces the size occupied by the first and second rotating arms in the width direction of the base, thereby reducing the size of the pivot mechanism in the width direction. This facilitates the thinning and lightening of the pivot mechanism and electronic devices, while also providing more space for other structures within the pivot mechanism, such as damping structures and support plates.

[0011] In one possible implementation, the first rotating arm includes a first end and a second end, which are arranged opposite to each other along the length of the first rotating arm, with the first end facing the second rotating arm and the second end facing the first swing arm. The second rotating arm includes a third end and a fourth end, which are arranged opposite to each other along the length of the second rotating arm, with the third end facing the first rotating arm and the fourth end facing the second swing arm. When the rotating shaft mechanism rotates from the unfolded state to the folded state, the first end and the third end rotate toward the inward direction of the base, and the second end and the fourth end rotate toward the direction away from the base.

[0012] In this way, the first and second rotating arms can rotate in opposite directions, thereby simplifying the structure of the synchronization component, reducing the manufacturing difficulty of the rotating shaft mechanism, and lowering the processing and production costs of the rotating shaft mechanism and electronic equipment, while meeting the requirement of synchronous rotation of the rotating shaft structure.

[0013] In one possible implementation, the first rotating arm has a first mounting hole, the axial direction of which is parallel to the length direction of the base, and the first mounting hole is spaced apart from both the first end and the second end. The rotating shaft mechanism includes a first rotating shaft, which is fixedly connected to the base, and the extension direction of the first rotating shaft is parallel to the length direction of the base. The first rotating shaft is disposed within the first mounting hole, and the first rotating arm is capable of rotating relative to the base around the first rotating shaft.

[0014] In this embodiment, by providing a first mounting hole in the first rotating arm and a first rotating shaft in the base, the rotational connection between the first rotating arm and the base can be achieved. This simplifies the connection between the first rotating arm and the base, and the dimensions of the first rotating shaft and the first mounting hole are easy to measure, which can improve the measurement performance of the synchronization component. This is beneficial to improving the dimensional accuracy and manufacturability of the first rotating arm, and can also reduce wear on the first rotating arm, thereby improving the rotational stability of the first rotating arm and the rotational stability and synchronization accuracy of the rotating shaft mechanism.

[0015] In one possible implementation, the first swing arm is provided with a first sliding hole, which is located between the first mounting hole and the second end, and the extending direction of the first sliding hole is parallel to the length direction of the first swing arm. The first swing arm includes a first sliding shaft, the extending direction of which is parallel to the length direction of the base. The first sliding shaft is located within the first sliding hole and is capable of rotating and sliding relative to the first swing arm along the first sliding hole.

[0016] When the first swing arm rotates relative to the base, the first sliding shaft slides along the first sliding hole and rotates around the axial direction of the first sliding shaft, thereby driving the first rotating arm to rotate relative to the base around the first rotating shaft. When the rotating shaft mechanism rotates from the unfolded state to the folded state, the first sliding shaft slides along the first sliding hole from the second end toward the first end. When the rotating shaft mechanism rotates from the folded state to the unfolded state, the first sliding shaft slides along the first sliding hole from the first end toward the second end.

[0017] In this embodiment, by providing a first sliding shaft in the first swing arm and a first sliding hole in the first rotary arm, the first swing arm and the first rotary arm can be rotated and slidably connected. This allows the first swing arm to rotate relative to the base, thereby simplifying the connection between the first rotary arm and the first swing arm. Furthermore, the dimensions of the first sliding hole and the first sliding shaft are easy to measure, which improves the measurement performance of the synchronization component. This, in turn, helps to improve the dimensional accuracy and manufacturability of the first rotary arm and reduces wear on the first swing arm and the first rotary arm. Consequently, it improves the rotational stability of the first swing arm and the first rotary arm, and further enhances the rotational stability and synchronization accuracy of the rotating shaft mechanism.

[0018] In one possible implementation, the second rotating arm is provided with a second mounting hole, the axial direction of which is parallel to the length direction of the base, and the second mounting hole is spaced apart from both the third end and the fourth end. The rotating shaft mechanism includes a second rotating shaft, which is fixedly connected to the base, and the extension direction of the second rotating shaft is parallel to the length direction of the base. The second rotating shaft is disposed within the second mounting hole, and the second rotating arm is capable of rotating relative to the base around the second rotating shaft.

[0019] In this embodiment, by providing a second mounting hole on the second rotating arm and a second rotating shaft on the base, the rotational connection between the second rotating arm and the base can be achieved. This simplifies the connection between the second rotating arm and the base, and the dimensions of the second rotating shaft and the second mounting hole are easy to measure, which can improve the measurement performance of the synchronization component. This is beneficial to improving the dimensional accuracy and manufacturability of the second rotating arm, and can reduce wear on the second rotating arm, thereby improving the rotational stability of the second rotating arm, and further improving the rotational stability and synchronization accuracy of the rotating shaft mechanism.

[0020] In one possible implementation, the second rotating arm includes a second sliding hole disposed between the second mounting hole and the fourth end, and the extension direction of the second sliding hole is parallel to the length direction of the second rotating arm. The second swing arm includes a second sliding shaft, the extension direction of which is parallel to the length direction of the base. The second sliding shaft is disposed within the second sliding hole and is capable of rotating and sliding relative to the second rotating arm along the second sliding hole.

[0021] When the second swing arm rotates relative to the base, the second sliding shaft slides along the second sliding hole and rotates around the axial direction of the second sliding shaft, thereby driving the second rotating arm to rotate relative to the base around the second rotating shaft. When the rotating shaft mechanism rotates from the unfolded state to the folded state, the second sliding shaft slides along the second sliding hole from the fourth end to the third end. When the rotating shaft mechanism rotates from the folded state to the unfolded state, the second sliding shaft slides along the second sliding hole from the third end to the fourth end.

[0022] In this embodiment, by providing a second sliding shaft in the second swing arm and a second sliding hole in the second rotary arm, the second swing arm and the second rotary arm can be rotated and slidably connected. This allows the second swing arm to rotate relative to the base, thereby simplifying the connection between the second rotary arm and the second swing arm. Furthermore, the dimensions of the second sliding hole and the second sliding shaft are easy to measure, improving the measurement performance of the synchronization component. This, in turn, helps to improve the dimensional accuracy and manufacturability of the second rotary arm and reduces wear on the second swing arm and the second rotary arm. Consequently, this improves the rotational stability of the second swing arm and the second rotary arm, and further enhances the rotational stability and synchronization accuracy of the rotating shaft mechanism.

[0023] In one possible implementation, the second rotating arm is provided with a third sliding hole, which is located between the second mounting hole and the third end, and the extension direction of the third sliding hole is parallel to the length direction of the second rotating arm. The first rotating arm includes a third sliding shaft, which extends parallel to the length direction of the base and is located between the first mounting hole and the first end. The third sliding shaft is disposed within the third sliding hole and is capable of rotating and sliding relative to the second rotating arm along the third sliding hole.

[0024] When the first swing arm rotates relative to the base, it drives the first rotary arm to rotate relative to the base through the first sliding shaft. The first rotary arm drives the second rotary arm to rotate relative to the base through the third sliding shaft. The second rotary arm drives the second sliding shaft to rotate, thereby driving the second swing arm to rotate relative to the base, thus achieving synchronous rotation of the first and second swing arms.

[0025] When the first rotating arm rotates relative to the base, the third sliding shaft slides along the third sliding hole and rotates about the axial direction of the third sliding shaft. When the rotating shaft mechanism rotates from the unfolded state to the folded state, the third sliding shaft slides along the third sliding hole from the fourth end toward the third end. When the rotating shaft mechanism rotates from the folded state to the unfolded state, the third sliding shaft slides along the third sliding hole from the third end toward the fourth end.

[0026] In this embodiment, by providing a third sliding shaft in the first rotating arm and a third sliding hole in the second rotating arm, the first and second rotating arms can be rotated and slidably connected. This allows the first rotating arm to rotate relative to the base, thereby driving the second rotating arm to rotate relative to the base. This simplifies the connection between the first and second rotating arms. Furthermore, the dimensions of the third sliding hole and the third sliding shaft are easy to measure, improving the measurement performance of the synchronization component. This, in turn, helps to improve the dimensional accuracy and manufacturability of the first and second rotating arms, and further reduces wear on the first and second rotating arms. Consequently, it improves the rotational stability of the first and second rotating arms, and further enhances the rotational stability and synchronization accuracy of the rotating shaft mechanism.

[0027] It is understood that in the rotating shaft mechanism provided in this embodiment, the first rotating arm and the base, the first rotating arm and the first swing arm, the second rotating arm and the base, the second rotating arm and the second swing arm, and the second rotating arm and the first rotating arm are all connected by pivot pins. This simplifies the connection between the first swing arm, the first rotating arm, the second rotating arm, and the second swing arm, making the synchronization component easier to measure and improving its measurement performance. This, in turn, helps improve the dimensional accuracy and manufacturability of the first rotating arm, the second rotating arm, the first swing arm, and the second swing arm, thereby enhancing the connection stability between them and improving the rotational stability and synchronization accuracy of the synchronization component. Furthermore, this also reduces wear on the synchronization component, improving the reliability and service life of the rotating shaft mechanism, and further enhancing the rotational stability and synchronization accuracy of the synchronization component.

[0028] In one possible implementation, the rotating shaft mechanism further includes a first fixed frame and a second fixed frame. The side of the first swing arm facing away from the base is disposed on the first fixed frame and slidably connected to the first fixed frame. The side of the second swing arm facing away from the base is disposed on the second fixed frame and slidably connected to the second fixed frame.

[0029] The first fixed frame is fixedly connected to the first housing, and the second fixed frame is fixedly connected to the second housing. When the first housing rotates relative to the base, it drives the first fixed frame to rotate relative to the base, thereby driving the first swing arm to rotate relative to the base, and causing the first swing arm to rotate and slide relative to the first fixed frame. When the first swing arm rotates relative to the base, it drives the second swing arm to rotate relative to the base through the first and second rotating arms, thereby driving the second fixed frame to rotate relative to the base, and thus driving the second housing to rotate relative to the base. This achieves synchronous rotation of the first and second fixed frames, and synchronous rotation of the first and second housings, which in turn achieves synchronous rotation of the rotating shaft mechanism and the electronic equipment.

[0030] In this embodiment, by setting a first fixed frame and a second fixed frame, the connection stability between the rotating shaft mechanism and the first housing and the second housing can be improved, thereby improving the rotational stability of the electronic device.

[0031] Secondly, this application provides an electronic device. The electronic device includes a first housing, a second housing, a display screen, and the aforementioned rotating mechanism, wherein the rotating mechanism connects the first housing and the second housing. The display screen is mounted on the first housing, the second housing, and the rotating mechanism. When the rotating mechanism rotates, the first housing and the second housing rotate relative to each other, thereby causing the display screen to bend or unfold.

[0032] In summary, the rotating shaft mechanism provided in this application achieves synchronous rotation of the first and second swing arms, as well as synchronous rotation of the rotating shaft mechanism and electronic equipment, by connecting the first and second swing arms between the first and second swing arms, and making the first swing arm rotatably and slidably connected to the first swing arm, rotatably connected to the base, and rotatably and slidably connected to the second swing arm, and making the second swing arm rotatably connected to the base and rotatably and slidably connected to the second swing arm. This eliminates the need for a synchronizing gear, simplifies the structure of the synchronizing components, reduces the manufacturing difficulty of the rotating shaft mechanism, and lowers the processing and production costs of the rotating shaft mechanism and electronic equipment, while ensuring the synchronous rotation requirements of the rotating shaft mechanism. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the background art, the accompanying drawings used in the embodiments of this application or the background art will be described below.

[0034] Figure 1 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application in the first state;

[0035] Figure 2 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application in the second state;

[0036] Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application in the third state;

[0037] Figure 4 yes Figure 3 A schematic diagram of the exploded structure of the electronic device shown.

[0038] Figure 5 yes Figure 4 A schematic diagram of the rotating shaft mechanism in the electronic device shown.

[0039] Figure 6 yes Figure 5 The exploded structural diagram of the rotating shaft mechanism shown;

[0040] Figure 7 yes Figure 6 A schematic diagram of the base in the rotating shaft mechanism;

[0041] Figure 8 yes Figure 6 A partial exploded view of the rotating shaft mechanism shown.

[0042] Figure 9 yes Figure 6 A schematic diagram of the structure of the third and fourth swing arms in the rotating shaft mechanism shown;

[0043] Figure 10 yes Figure 9The diagram shows the structure of the third and fourth swing arms at another angle;

[0044] Figure 11 yes Figure 5 The cross-sectional view of the rotating shaft mechanism shown is along the AA direction.

[0045] Figure 12 yes Figure 5 The schematic diagram of the cross-sectional structure of the rotating shaft mechanism along the BB direction is shown.

[0046] Figure 13 yes Figure 6 An exploded view of the synchronization component in the rotating shaft mechanism shown.

[0047] Figure 14 yes Figure 13 A partial exploded view of the synchronization component shown from another angle.

[0048] Figure 15 yes Figure 5 A schematic cross-sectional view of the rotating shaft mechanism shown.

[0049] Figure 16 yes Figure 15 The diagram shows a cross-sectional view of the rotating shaft mechanism in a folded state. Detailed Implementation

[0050] The embodiments of this application are described below with reference to the accompanying drawings.

[0051] Please see Figures 1 to 3 , Figure 1 This is a schematic diagram of the structure of the electronic device 500 provided in the embodiments of this application in the first state. Figure 2 This is a schematic diagram of the electronic device 500 provided in the embodiments of this application in a second state. Figure 3 This is a schematic diagram of the structure of the electronic device 500 provided in the embodiments of this application in the third state.

[0052] For ease of description, the width direction of the electronic device 500 is defined as the X direction, the length direction of the electronic device 500 is defined as the Y direction, and the thickness direction of the electronic device 500 is defined as the Z direction. The X, Y, and Z directions are all perpendicular to each other.

[0053] Electronic device 500 includes, but is not limited to, cellphones, notebook computers, tablet computers, laptop computers, personal digital assistants, wearable devices, or mobile devices. In this embodiment, a cellphone is used as an example for illustration.

[0054] Figure 1 The electronic device 500 shown is in a folded state. Figure 2 The electronic device 500 shown is in a semi-deployed state. Figure 3 The electronic device 500 shown is in an unfolded state. Figure 2 The unfolding angle α of the electronic device 500 shown is 90 degrees. Figure 3 The unfolding angle β of the electronic device 500 shown is 180 degrees.

[0055] It should be noted that slight deviations are allowed in the angles illustrated in the embodiments of this application. For example, Figure 2 The unfolding angle α of the electronic device 500 shown is 90 degrees, which means that α can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 0 degrees. Figure 3 The unfolding angle β of the electronic device 500 shown is 180 degrees, meaning that β can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees. The angles illustrated in the following text can be understood in the same way.

[0056] The electronic device 500 shown in this embodiment is an electronic device 500 capable of being folded once. In some other embodiments, the electronic device 500 may also be an electronic device 500 capable of being folded multiple times (more than twice). In this case, the electronic device 500 may include multiple parts, with adjacent parts folded relatively close together until the electronic device 500 is in a folded state, and adjacent parts unfolded relatively far apart until the electronic device 500 is in an unfolded state.

[0057] Please see Figure 4 , Figure 4 yes Figure 3 An exploded view of the electronic device 500 shown.

[0058] The electronic device 500 includes a first housing 210, a second housing 220, a pivot mechanism 100, and a display screen 300. The pivot mechanism 100 is disposed between the first housing 210 and the second housing 220 and is fixedly connected to the first housing 210 and the second housing 220. The first housing 210 and the second housing 220 are rotatably connected through the pivot mechanism 100.

[0059] The display screen 300 includes a display surface 310 and a mounting surface 320, which are disposed opposite to each other along the thickness direction of the display screen 300. The display surface 310 is used to display text, images, and videos, etc. The display screen 300 includes a first portion 330, a second portion 340, and a flexible portion 350. The flexible portion 350 is located between the first portion 330 and the second portion 340, and the flexible portion 350 can be bent about a direction with the Y direction as the axis. The first portion 330, the second portion 340, and the flexible portion 350 together constitute the display screen 300. In this embodiment, the display screen 300 is a flexible display screen, such as an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (MLED) display screen, a micro organic light-emitting diode (MOLED) display screen, a micro organic light-emitting diode (MOLED) display screen, and a quantum dot light-emitting diode (QLED) display screen.

[0060] The display screen 300 is mounted on the first housing 210, the second housing 220, and the pivot mechanism 100. The mounting surface 320 faces the first housing 210 and the second housing 220 and is fixedly connected to them. Specifically, the first portion 330 is mounted on the first housing 210 and fixedly connected to it, and the second portion 340 is mounted on the second housing 220 and fixedly connected to it. The flexible portion 350 is positioned opposite to the pivot mechanism 100. The first housing 210 and the second housing 220 can rotate relative to each other via the pivot mechanism 100, causing the display screen 300 to bend or unfold, and allowing the electronic device 500 to switch between a folded state and an unfolded state.

[0061] Combination Figure 1The first housing 210 and the second housing 220 rotate toward each other via the pivot mechanism 100, causing the display screen 300 to bend, thereby folding the electronic device 500. When the electronic device 500 is in the folded state, the first housing 210 and the second housing 220 are arranged opposite each other and stacked, the bendable portion 350 of the display screen 300 bends, and the first portion 330 and the second portion 340 are arranged opposite each other. At this time, the display screen 300 is located between the first housing 210 and the second housing 220, which greatly reduces the probability of damage to the display screen 300 and effectively protects it.

[0062] Please refer to the following: Figure 2 and Figure 4 The first housing 210 and the second housing 220 rotate in opposite directions via the pivot mechanism 100, causing the display screen 300 to unfold, thereby rotating the electronic device 500 to a semi-unfolded state. When the electronic device 500 is in the semi-unfolded state, the angle between the first housing 210 and the second housing 220 is α, the first part 330 and the second part 340 unfold relative to each other, and the flexible part 350 unfolds as well. At this time, the angle between the first part 330 and the second part 340 is α. In this embodiment, α is 90 degrees. In other embodiments, α can also be approximately 90 degrees, or it can be 80 degrees, 85 degrees, 95 degrees, or 0 degrees, etc.

[0063] Please refer to the following: Figure 3 and Figure 4 The first housing 210 and the second housing 220 continue to rotate in opposite directions via the pivot mechanism 100, driving the display screen 300 to further unfold until the electronic device 500 rotates to the unfolded state. When the electronic device 500 is in the unfolded state, the angle between the first housing 210 and the second housing 220 is β, the flexible portion 350 unfolds, and the first portion 330 and the second portion 340 unfold relative to each other. At this time, the angle between the first portion 330, the second portion 340, and the flexible portion 350 is all β, and the display screen 300 has a large display area, realizing a large-screen display of the electronic device 500 and improving the user experience. In this embodiment, β is 180 degrees. In other embodiments, β can also be approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees.

[0064] It should be noted that both included angle α and included angle β are the angles between the first housing 210 and the second housing 220. These angles are used here only to distinguish the different angles between the first housing 210 and the second housing 220 in different states of the electronic device 500. Specifically, included angle α refers to the angle between the first housing 210 and the second housing 220 when the electronic device 500 is in its semi-deployed state; included angle β refers to the angle between the first housing 210 and the second housing 220 when the electronic device 500 is in its deployed state.

[0065] Please see Figure 5 and Figure 6 , Figure 5 yes Figure 4 A schematic diagram of the rotating shaft mechanism 100 in the electronic device 500 shown. Figure 6 yes Figure 5 An exploded view of the rotating shaft mechanism 100 shown.

[0066] The rotating shaft mechanism 100 includes a base 10, a first rotating assembly 110, a second rotating assembly 120, and a synchronization assembly 40. The first rotating assembly 110 and the second rotating assembly 120 are located on opposite sides of the base 10 in the width direction and are rotatably connected to the base 10.

[0067] The first rotating assembly 110 includes a first fixed frame 21 and a third swing arm 31. One end of the third swing arm 31 is rotatably connected to the base 10, and the other end is rotatably connected to the first fixed frame 21. The first fixed frame 21 is fixedly connected to the first housing 210. When the first housing 210 rotates relative to the base 10, it drives the first fixed frame 21 to rotate relative to the base 10, thereby driving the third swing arm 31 to rotate relative to the base 10 and causing the third swing arm 31 to rotate relative to the first fixed frame 21, thus realizing the unfolding or folding of the first rotating assembly 110 relative to the base 10.

[0068] The second rotating assembly 120 includes a second fixed frame 22 and a fourth swing arm 32. One end of the fourth swing arm 32 is rotatably connected to the base 10, and the other end is rotatably connected to the second fixed frame 22. The second fixed frame 22 is fixedly connected to the second housing 220. When the second housing 220 rotates relative to the base 10, it drives the second fixed frame 22 to rotate relative to the base 10, thereby driving the fourth swing arm 32 to rotate relative to the base 10 and causing the fourth swing arm 32 to rotate relative to the second fixed frame 22. This allows the second rotating assembly 120 to unfold or fold relative to the base 10, enabling the rotating shaft mechanism 100 and the electronic device 500 to switch between unfolded and folded states.

[0069] The synchronization component 40 includes a first swing arm 41, a second swing arm 42, a first rotary arm 43, and a second rotary arm 44. The first swing arm 41 is connected between the base 10 and the first fixed frame 21, and is rotatably connected to the base 10 and slidably connected to the first fixed frame 21. The second swing arm 42 is connected between the base 10 and the second fixed frame 22, and is rotatably connected to the base 10 and slidably connected to the second fixed frame 22. The first rotary arm 43 is rotatably connected to the base 10 and rotatably and slidably connected to the first swing arm 41. The second rotary arm 44 is connected between the first rotary arm 43 and the second swing arm 42. Furthermore, the second rotary arm 44 is rotatably connected to the base 10, rotatably and slidably connected to the second swing arm 42, and rotatably and slidably connected to the first rotary arm 43.

[0070] When the electronic device 500 rotates, the first fixed frame 21 rotates relative to the base 10, thereby driving the first swing arm 41 to rotate relative to the base 10 and causing the first swing arm 41 to slide relative to the first fixed frame 21. When the first swing arm 41 rotates relative to the base 10, it drives the first rotary arm 43 to rotate relative to the base 10, and the first rotary arm 43 rotates and slides relative to the first swing arm 41. When the first rotary arm 43 rotates relative to the base 10, it drives the second rotary arm 44 to rotate relative to the base 10, and the second rotary arm 44 rotates and slides relative to the second swing arm 42. When the second swing arm 42 rotates relative to the base 10, it drives the second fixed frame 22 to rotate relative to the base 10, and the second swing arm 42 slides relative to the second fixed frame 22, thereby realizing the synchronous rotation of the first fixed frame 21 and the second fixed frame 22, as well as the synchronous rotation of the first housing 210 and the second housing 220. That is, it realizes the synchronous rotation of the rotating shaft mechanism 100 and the electronic device 500, and switches the rotating shaft mechanism 100 and the electronic device 500 between the unfolded state and the folded state. Among them, the rotation directions of the first swing arm 41 and the second swing arm 42 are opposite, and the rotation directions of the first rotating arm 43 and the second rotating arm 44 are opposite.

[0071] It should be noted that, Figure 5 and Figure 6 Only a partial structure of the rotating shaft mechanism 100 is shown. In reality, the rotating shaft mechanism 100 includes multiple sets of rotating structures, arranged sequentially along the Y-direction. Each set of rotating structures includes a first fixed frame 21, a third swing arm 31, a fourth swing arm 32, and a synchronization component 40. For example, the rotating shaft mechanism 100 includes two sets of rotating structures. The two sets of rotating structures are spaced apart on the base 10 along the Y-direction. The two sets of rotating structures can be symmetrical or asymmetrical. To further enhance the stability of the entire rotating shaft mechanism 100, one, two, or three or more sets of the aforementioned rotating structures can be added between the rotating structures at both ends of the base 10. The number of the aforementioned rotating structures can be adjusted according to actual conditions, and no specific limitation is made here.

[0072] The first fixing frame 21 of the multiple rotating structures can be a separate structure, that is, an individual structural component, and not fixed to each other. Alternatively, the first fixing frames 21 of the multiple rotating structures can be connected to each other, or partially connected. The second fixing frame 22 of the multiple rotating structures can be a separate structure, or connected to each other, or partially connected.

[0073] Please see Figure 7 , Figure 7 yes Figure 6 A schematic diagram of the structure of the base 10 in the rotating shaft mechanism 100.

[0074] The base 10 includes a top surface 101, a bottom surface 102, a first side surface 103, and a second side surface 104. The top surface 101 and the bottom surface 102 are arranged opposite to each other along the thickness direction of the base 10, that is, opposite to each other along the Z direction. The first side surface 103 and the second side surface 104 are arranged opposite to each other along the width direction of the base 10, that is, opposite to each other along the X direction, and both the first side surface 103 and the second side surface 104 are connected between the bottom surface 102 and the top surface 101.

[0075] The base 10 is provided with a first rotating groove 11 and a second rotating groove 12. In this embodiment, the first rotating groove 11 and the second rotating groove 12 are arranged opposite to each other along the X direction. The bottom wall of the first rotating groove 11 is arc-shaped and bends towards the bottom surface 102. The bottom wall of the first rotating groove 11 is provided with a first slide rail 13. The first slide rail 13 is arc-shaped and arranged along the X direction. The first slide rail 13 includes a first stop surface 131. The first stop surface 131 is located on one side of the first slide rail 13, and the orientation of the first stop surface 131 is the same as the orientation of the first side surface 103. That is, the first stop surface 131 faces the positive X-axis direction.

[0076] The first rotating groove 11 has a first limiting block 14 on its side wall. In this embodiment, there are two first limiting blocks 14. The two first limiting blocks 14 are symmetrically arranged on opposite side walls of the first rotating groove 11 in the Y direction. The first limiting blocks 14 are opposite to and spaced apart from the bottom wall of the first rotating groove 11. The first rotating groove 11 is used to install the third swing arm 31. The third swing arm 31 can rotate relative to the base 10 along the first rotating groove 11 and the first slide rail 13. The first limiting blocks 14 can limit the first swing arm 31 to prevent the third swing arm 31 from detaching from the base 10 in the Z direction, thereby improving the stability of the rotation of the third swing arm 31 relative to the base 10.

[0077] The second rotating groove 12 is symmetrically arranged with the first rotating groove 11 along the X-direction. The bottom wall of the second rotating groove 12 is arc-shaped and curves towards the bottom surface 102 of the base 10. A second slide rail 15 is provided on the bottom wall of the second rotating groove 12. The second slide rail 15 is arc-shaped and arranged along the X-direction. The second slide rail 15 includes a second stop surface 151. The second stop surface 151 is located on the side of the second slide rail 15 facing the second side surface 104, and the orientation of the second stop surface 151 is the same as the orientation of the second side surface 104. That is, the second stop surface 151 faces the negative X-axis direction.

[0078] The second rotating groove 12 has a second limiting block 16 on each of its two opposite sidewalls in the Y direction. The second limiting block 16 is opposite to and spaced apart from the bottom wall of the second rotating groove 12. The second rotating groove 12 is used to install the fourth swing arm 32. The fourth swing arm 32 can rotate relative to the base 10 along the second rotating groove 12 and the second slide rail 15. The second limiting block 16 can limit the second swing arm 32 to prevent it from detaching from the base 10 in the Z direction, thereby improving the stability of the fourth swing arm 32's rotation relative to the base 10.

[0079] The base 10 is also provided with a mounting groove 17. The mounting groove 17 is spaced apart from the first rotating groove 11 and the second rotating groove 12 along the Y direction. The mounting groove 17 passes through the first side surface 103, the second side surface 104 and the top surface 101. The mounting groove 17 includes a first inner wall 171 and a second inner wall 172. The first inner wall 171 and the second inner wall 172 are both located in the mounting groove 17 and are arranged opposite to each other along the Y direction.

[0080] The rotating shaft mechanism 100 also includes a third rotating shaft 1, a fourth rotating shaft 2, a first rotating shaft 3, and a second rotating shaft 4. The third rotating shaft 1, the fourth rotating shaft 2, the first rotating shaft 3, and the second rotating shaft 4 are all disposed in the mounting groove 17 and fixedly connected to the base 10. The axial directions of the third rotating shaft 1, the fourth rotating shaft 2, the first rotating shaft 3, and the second rotating shaft 4 are all parallel to the Y-direction. One end of the first rotating shaft 3 is fixedly connected to or passes through the first inner wall 171, and the other end is fixedly connected to or passes through the second inner wall 172. That is, the first rotating shaft 3 passes through the mounting groove 17 along the Y-direction. The second rotating shaft 4 is symmetrically arranged with the first rotating shaft 3. The second rotating shaft 4 passes through the mounting groove 17 along the Y-direction and is fixedly connected to the first inner wall 171 and the second inner wall 172. The first rotating shaft 3 is used for rotatable connection with the first rotating arm 43, and the second rotating shaft 4 is used for rotatable connection with the second rotating arm 44.

[0081] The third rotating shaft 1 is located on the side of the first rotating shaft 3 facing away from the second rotating shaft 4, and is spaced apart from the first rotating shaft 3 along the X direction. One end of the third rotating shaft 1 is fixedly connected to the first inner wall 171, and the other end is spaced apart from the second inner wall 172. The fourth rotating shaft 2 is symmetrically arranged with the third rotating shaft 1. The fourth rotating shaft 2 is located on the side of the second rotating shaft 4 facing away from the first rotating shaft 3, and is spaced apart from the second rotating shaft 4 along the X direction. One end of the fourth rotating shaft 2 is fixedly connected to the first inner wall 171, and the other end is spaced apart from the second inner wall 172. The third rotating shaft 1 is used for rotatable connection with the first swing arm 41, and the fourth rotating shaft 2 is used for rotatable connection with the second swing arm 42.

[0082] It should be noted that, Figure 7 The diagram only shows a portion of the base 10 in the negative Y-axis direction. The structure of the base 10 in the positive Y-axis direction is the same as or similar to that in the negative Y-axis direction. Furthermore, the structure of the base 10 in the positive Y-axis direction can be appropriately adjusted according to the specific structure of the rotating structure located in the positive Y-axis direction.

[0083] Please see Figure 8 , Figure 8 yes Figure 6 A partial exploded view of the rotating shaft mechanism 100 shown.

[0084] The first fixed frame 21 is provided with a first shaft hole 211 and a first sliding groove 212. The axial direction of the first shaft hole 211 is parallel to the Y direction. The rotating shaft mechanism 100 also includes a fifth rotating shaft 5. The first shaft hole 211 is used to install the fifth rotating shaft 5, and the fifth rotating shaft 5 is used to connect with the third swing arm 31 to realize the rotational connection between the third swing arm 31 and the first fixed frame 21.

[0085] The first sliding groove 212 and the first shaft hole 211 are spaced apart along the Y direction. The first sliding groove 212 penetrates the top surface of the first fixing frame 21 and the two sides of the first fixing frame 21 in the width direction. Here, "the top surface of the first fixing frame 21" refers to... Figure 8 The first fixed frame 21 has a surface facing the positive Z-axis. A first extension plate 213 is provided on two opposite sidewalls of the first slide groove 212 along the Y-direction. The first extension plate 213 extends towards the first slide groove 212 and is spaced apart from the bottom wall of the first slide groove 212 along the thickness direction of the first fixed frame 21. The first slide groove 212 is used to mount the first swing arm 41. The first swing arm 41 can slide relative to the first fixed frame 21 within the first slide groove 212 along the width direction of the first fixed frame 21. The first extension plate 213 can limit the first swing arm 41 in the thickness direction of the first fixed frame 21, preventing the first swing arm 41 from dislodging from the first fixed frame 21 along the thickness direction of the first fixed frame 21, thereby improving the stability of the first swing arm 41 sliding along the first slide groove 212.

[0086] The second fixed frame 22 and the first fixed frame 21 are mirror images of each other. The second fixed frame 22 is provided with a second shaft hole 221 and a second sliding groove 222. The axial direction of the second shaft hole 221 is parallel to the Y direction. The rotating shaft mechanism 100 also includes a sixth rotating shaft 6. The second shaft hole 221 is used to install the sixth rotating shaft 6, and the sixth rotating shaft 6 is used to connect with the fourth swing arm 32 to realize the rotational connection between the fourth swing arm 32 and the second fixed frame 22.

[0087] The second slide groove 222 and the second shaft hole 221 are spaced apart along the Y direction. The second slide groove 222 penetrates the top surface of the second fixing frame 22 and the two sides of the second fixing frame 22 in the width direction. Here, "the top surface of the second fixing frame 22" refers to... Figure 8 The second fixed bracket 22 has a surface facing the positive Z-axis. The second slide groove 222 has two opposite sidewalls with second extension plates 223 along the Y-direction. The second extension plates 223 extend towards the second slide groove 222 and are spaced apart from the bottom wall of the second slide groove 222 along the thickness direction of the second fixed bracket 22. The second slide groove 222 is used to mount the second swing arm 42. The second swing arm 42 can slide relative to the second fixed bracket 22 within the second slide groove 222 along the width direction of the second fixed bracket 22. The second extension plates 223 can limit the second swing arm 42 in the thickness direction of the second fixed bracket 22, preventing the second swing arm 42 from dislodging from the second fixed bracket 22 along the thickness direction of the second fixed bracket 22, thereby improving the stability of the second swing arm 42 sliding along the second slide groove 222.

[0088] Please see Figure 9 and Figure 10 , Figure 9 yes Figure 6 The schematic diagram of the structure of the third swing arm 31 and the fourth swing arm 32 in the rotating shaft mechanism 100 shown is as follows. Figure 10 yes Figure 9 The diagram shows the structure of the third swing arm 31 and the fourth swing arm 32 at another angle.

[0089] The third swing arm 31 includes a first rotating body 311, a first oscillating body 312, and a first bearing seat 313. The first rotating body 311, the first oscillating body 312, and the first bearing seat 313 are connected sequentially along the length direction of the third swing arm 31. When the rotating shaft mechanism 100 is in the unfolded state, the length direction of the third swing arm 31 is parallel or approximately parallel to the X direction. The first bearing seat 313 is provided with a third shaft hole 314. The extension direction of the third shaft hole 314 is parallel to the Y direction. The third shaft hole 314 is used to install the fifth rotating shaft 5 to realize the rotational connection between the third swing arm 31 and the first fixed frame 21.

[0090] The first rotating body 311 includes a first supporting surface 3111 and a first rotating surface 3112. The first supporting surface 3111 and the first rotating surface 3112 are arranged opposite to each other along the thickness direction of the first rotating body 311. The first rotating surface 3112 is an arc surface, and its shape matches the shape of the first rotating groove 11. "Matching" here means that the radius of curvature of the first rotating surface 3112 is the same as or approximately the same as the radius of curvature of the bottom wall of the first rotating groove 11. When the first rotating body 311 rotates relative to the base 10, the first rotating surface 3112 slides along the bottom wall of the first rotating groove 11. The first rotating surface 3112 is provided with a first arc-shaped groove 315. The structure of the first arc-shaped groove 315 matches the structure of the first slide rail 13. When the first rotating body 311 rotates relative to the base 10, the bottom wall of the first arc-shaped groove 315 slides along the first slide rail 13. The first supporting surface 3111 is provided with a second arc-shaped groove 316. In this embodiment, there are two second arc-shaped grooves 316. The two second arc-shaped grooves 316 are respectively provided on opposite sides of the first rotating body 311 in the Y direction. When the first rotating body 311 rotates relative to the base 10, the bottom wall of the second arc-shaped groove 316 slides along the first limiting block 14.

[0091] The third swing arm 31 is also provided with a first clearance hole 317. The first clearance hole 317 extends through the third swing arm 31 along its thickness direction. The first clearance hole 317 includes a third stop surface 318. The third stop surface 318 is located within the first clearance hole 317 and faces the first rotating body 311. The third stop surface 318 is parallel or substantially parallel to the length direction (X direction) of the third swing arm 31. The third stop surface 318 is used to stop with the first stop surface 131.

[0092] The fourth swing arm 32 is a mirror image of the third swing arm 31. The fourth swing arm 32 includes a second rotating body 321, a second oscillating body 322, and a second bearing 323. The second rotating body 321, the second oscillating body 322, and the second bearing 323 are sequentially connected along the length of the fourth swing arm 32. When the rotating shaft mechanism 100 is in the extended state, the length of the fourth swing arm 32 is parallel or approximately parallel to the X-direction. The second bearing 323 has a fourth shaft hole 324. The extension direction of the fourth shaft hole 324 is parallel to the Y-direction. The fourth shaft hole 324 is used to mount a sixth rotating shaft 6 to achieve a rotatable connection between the fourth swing arm 32 and the second fixed frame 22.

[0093] The second rotating body 321 includes a second supporting surface 3211 and a second rotating surface 3212. The second supporting surface 3211 and the second rotating surface 3212 are disposed opposite to each other along the thickness direction of the second rotating body 321. The second rotating surface 3212 is an arc surface, and its shape matches the shape of the second rotating groove 12. When the second rotating body 321 rotates relative to the base 10, the second rotating surface 3212 slides along the bottom wall of the second rotating groove 12. The second rotating surface 3212 is provided with a third arc-shaped groove 325. The structure of the third arc-shaped groove 325 matches the structure of the second slide rail 15. When the second rotating body 321 rotates relative to the base 10, the bottom wall of the third arc-shaped groove 325 slides along the second slide rail 15. The second supporting surface 3211 is provided with a fourth arc-shaped groove 326. In this embodiment, there are two fourth arc-shaped grooves 326. The two fourth arc-shaped grooves 326 are respectively disposed on opposite sides of the second rotating body 321 in the Y direction. When the second rotating body 321 rotates relative to the base 10, the bottom wall of the fourth arc-shaped groove 326 slides along the second limiting block 16.

[0094] The fourth swing arm 32 is also provided with a second clearance hole 327. The second clearance hole 327 extends through the fourth swing arm 32 along its thickness direction. The second clearance hole 327 includes a fourth stop surface 328. The fourth stop surface 328 is located within the second clearance hole 327 and faces the second rotating body 321. The fourth stop surface 328 is parallel or substantially parallel to the length direction (X direction) of the fourth swing arm 32. The fourth stop surface 328 is used to stop with the second stop surface 151.

[0095] Please see Figure 5 , Figure 11 and Figure 12 , Figure 11 yes Figure 5 The schematic diagram shows a cross-sectional view of the rotating shaft mechanism 100 along the AA direction. Figure 12 yes Figure 5 The schematic diagram of the cross-sectional structure of the rotating shaft mechanism 100 along the BB direction is shown.

[0096] The first fixed frame 21 and the third swing arm 31 are located on one side of the base 10 in the positive X-axis direction. The first fixed frame 21 is fixedly connected to the first housing 210. The third swing arm 31 is connected between the first fixed frame 21 and the base 10. The first rotating body 311 is located in the first rotating groove 11. The first rotating surface 3112 faces the bottom wall of the first rotating groove 11 and can slide along the bottom wall of the first rotating groove 11 and rotate relative to the base 10. The bottom wall of the first arc-shaped groove 315 is opposite to the first slide rail 13, and the bottom wall of the first arc-shaped groove 315 can rotate relative to the base 10 along the first slide rail 13. The second arc-shaped groove 316 is located between the first limiting block 14 and the bottom wall of the first rotating groove 11. The first limiting block 14 is at least partially located in the second arc-shaped groove 316.

[0097] The fifth rotating shaft 5 passes through the first shaft hole 211 and the third shaft hole 314 to achieve a rotatable connection between the third swing arm 31 and the first fixed frame 21. Specifically, the fifth rotating shaft 5 is fixedly connected to the first fixed frame 21 and rotatably connected to the first shaft seat 313. Alternatively, the fifth rotating shaft 5 can also be rotatably connected to the first fixed frame 21 and fixedly connected to the first shaft seat 313.

[0098] When the first housing 210 rotates relative to the base 10, it drives the first fixed frame 21 relative to the base 10, thereby driving the third swing arm 31 to rotate relative to the base 10, and causing the third swing arm 31 to rotate around the fifth rotating axis 5 relative to the first fixed frame 21. When the third swing arm 31 rotates relative to the base 10, the first rotating body 311 slides in an arc along the first rotating groove 11. Specifically, the first rotating surface 3112 slides in an arc along the bottom wall of the first rotating groove 11, the bottom wall of the first arc groove 315 slides in an arc along the first slide rail 13, and the bottom wall of the second arc groove 316 slides in an arc along the first limiting block 14.

[0099] It should be noted that the first rotating body 311 slides along the first rotating groove 11, which can also be understood as the first rotating body 311 rotating relative to the base 10 around the axis of the first rotating groove 11.

[0100] In this embodiment, by setting a first fixed frame 21 and fixing the first fixed frame 21 to the first housing 210, rotating it to the third swing arm 31, and sliding it to the first swing arm 41, the connection stability between the rotating shaft mechanism 100 and the first housing 210 can be improved, thereby improving the stability of the rotation of the first housing 210, the first swing arm 41 and the third swing arm 31 relative to the base 10.

[0101] Furthermore, in this embodiment, by simultaneously providing a first rotating groove 11 and a first slide rail 13 on the base 10, when the third swing arm 31 rotates relative to the base 10, the first rotating body 311 slides along both the first rotating groove 11 and the first slide rail 13, which enhances the guiding effect on the first rotating body 311, thereby improving the stability of the first swing arm 41 rotating around the base 10. In addition, in this embodiment, by providing a first limiting block 14 on the side wall of the first rotating groove 11, the third swing arm 31 can be limited in the thickness direction (Z direction) of the base 10, thereby preventing the third swing arm 31 from detaching from the base 10, further improving the stability of the first rotating body 311 sliding along the first rotating groove 11, and enhancing the stability of the third swing arm 31 rotating relative to the base 10.

[0102] The second fixed frame 22 and the fourth swing arm 32 are located on the negative X-axis side of the base 10. The second fixed frame 22 is fixedly connected to the second housing 220. The fourth swing arm 32 is connected between the second fixed frame 22 and the base 10. The sixth rotating shaft 6 passes through the second shaft hole 221 and the fourth shaft hole 324 to realize the rotatable connection between the fourth swing arm 32 and the second fixed frame 22. The second rotating body 321 is located in the second rotating groove 12. The second rotating surface 3212 faces the bottom wall of the second rotating groove 12 and can slide along the bottom wall of the second rotating groove 12 and rotate relative to the base 10. The bottom wall of the third arc-shaped groove 325 is opposite to the second slide rail 15, and the bottom wall of the third arc-shaped groove 325 can rotate relative to the base 10 along the second slide rail 15. The fourth arc-shaped groove 326 is located between the second limiting block 16 and the bottom wall of the second rotating groove 12. That is, the second limiting block 16 is at least partially located within the fourth arc-shaped groove 326.

[0103] When the second housing 220 rotates relative to the base 10, it drives the second fixed frame 22 relative to the base 10, thereby driving the fourth swing arm 32 to rotate relative to the base 10, and causing the fourth swing arm 32 to rotate around the sixth rotating shaft 6 relative to the second fixed frame 22. When the fourth swing arm 32 rotates relative to the base 10, the second rotating body 321 slides in an arc along the second rotating groove 12. Specifically, the second rotating surface 3212 slides in an arc along the bottom wall of the second rotating groove 12, the bottom wall of the third arc groove 325 slides in an arc along the second slide rail 15, and the bottom wall of the fourth arc groove 326 slides in an arc along the second limiting block 16.

[0104] In this embodiment, by setting a second fixed frame 22 and fixing the second fixed frame 22 to the second housing 220, rotating it to the fourth swing arm 32, and sliding it to the second swing arm 42, the connection stability between the rotating shaft mechanism 100 and the second housing 220 can be improved. This can improve the rotational stability of the second housing 220, the second swing arm 42, and the fourth swing arm 32 relative to the base 10, and further improve the rotational stability of the electronic device 500.

[0105] In this embodiment, by simultaneously providing a second rotating groove 12 and a second slide rail 15 on the base 10, when the fourth swing arm 32 rotates relative to the base 10, the second rotating body 321 simultaneously slides along the second rotating groove 12 and the second slide rail 15. This enhances the guiding effect on the second rotating body 321, thereby improving the stability of the second swing arm 42 rotating around the base 10. Furthermore, in this embodiment, by providing a second limiting block 16 on the side wall of the second rotating groove 12, the fourth swing arm 32 can be limited in the thickness direction (Z direction) of the base 10, thereby preventing the fourth swing arm 32 from detaching from the base 10. This further improves the stability of the second rotating body 321 sliding along the second rotating groove 12 and enhances the stability of the fourth swing arm 32 rotating relative to the base 10.

[0106] In this configuration, the rotation direction of the first fixed frame 21 is opposite to that of the second fixed frame 22, and the rotation direction of the third swing arm 31 is opposite to that of the fourth swing arm 32. For example, when the rotating shaft mechanism 100 switches from the unfolded state to the folded state, the first fixed frame 21 and the third swing arm 31 rotate counterclockwise, while the second fixed frame 22 and the fourth swing arm 32 rotate clockwise. When the rotating shaft mechanism 100 switches from the folded state to the unfolded state, the first fixed frame 21 and the third swing arm 31 rotate clockwise, while the second fixed frame 22 and the fourth swing arm 32 rotate counterclockwise.

[0107] like Figure 12 As shown, when the rotating shaft mechanism 100 is in the unfolded state, the first fixed frame 21 and the second fixed frame 22 unfold relative to each other, and the third swing arm 31 and the fourth swing arm 32 unfold relative to each other. The included angle between the first fixed frame 21 and the second fixed frame 22 is 180 degrees or approximately 180 degrees, and the included angle between the third swing arm 31 and the fourth swing arm 32 is 180 degrees or approximately 180 degrees. The end of the first slide rail 13 near the first side 103 at least partially passes through the first clearance hole 317, and the first stop surface 131 is located inside the first clearance hole 317 and is located on the side of the third stop surface 318 near the base 10. The first stop surface 131 and the third stop surface 318 are arranged opposite each other in the X direction and stop each other.

[0108] In this embodiment, by providing a first stop surface 131 on the base 10 and a third stop surface 318 on the third swing arm 31, and when the rotating shaft mechanism 100 is in the unfolded state, the first stop surface 131 and the third stop surface 318 are arranged opposite each other along the width direction of the base 10. The first stop surface 131 can prevent the third swing arm 31 from moving towards the base 10 in the X direction. That is, the third swing arm 31 and the base 10 are stopped in the X direction, thereby reducing or even avoiding the misalignment of the rotating shaft mechanism 100 in the unfolded state and improving the user experience. At the same time, the rotating shaft mechanism 100 provided in this embodiment can prevent the display screen 300 from becoming redundant and arched, thus improving the service life of the display screen 300.

[0109] Similarly, when the rotating shaft mechanism 100 is in the unfolded state, the end of the second slide rail 15 near the second side 104 at least partially passes through the second clearance hole 327. The second stop surface 151 is located within the second clearance hole 327 and on the side of the fourth stop surface 328 near the base 10. The second stop surface 151 and the fourth stop surface 328 are arranged opposite each other in the X direction and stop each other. The second stop surface 151 acts as a stop for the fourth swing arm 32 in the X direction, preventing the fourth swing arm 32 from moving towards the base 10 in the X direction. This can further reduce or even avoid the play in the rotating shaft mechanism 100 when it is in the unfolded state, improving the user experience.

[0110] Please see Figure 13 , Figure 13 yes Figure 6 An exploded view of the synchronization component 40 in the rotating shaft mechanism 100 shown.

[0111] The synchronization assembly 40 includes a first swing arm 41, a first rotary arm 43, a second swing arm 42, and a second rotary arm 44. The first swing arm 41 includes a first rotating portion 411, a first sliding portion 412, and a first sliding shaft 413. The first rotating portion 411 has a first rotating hole 414. The axial direction of the first rotating hole 414 is parallel to the Y direction. The first rotating hole 414 is used to mount a third rotating shaft 1, and the first swing arm 41 is capable of rotating relative to the base 10 around the third rotating shaft 1. The first sliding portion 412 is connected to the first rotating portion 411. The structure of the first sliding portion 412 matches the structure of the first sliding groove 212, and the first sliding portion 412 is capable of sliding relative to the first fixed frame 21 along the first sliding groove 212.

[0112] The first sliding shaft 413 is connected between the first rotating part 411 and the first sliding part 412. The axial direction of the first sliding shaft 413 is parallel to the Y direction, and the first sliding shaft 413 and the first rotating hole 414 are spaced apart along the length direction of the first swing arm 41. One end of the first sliding shaft 413 extends toward the side away from the first sliding part 412 and the first rotating part 411. That is, one end of the first sliding shaft 413 protrudes from the first sliding part 412 and the first rotating part 411 in the width direction of the first swing arm 41. The first sliding shaft 413 is used to rotate and slide with the first rotating arm 43. When the rotating shaft mechanism 100 is in the unfolded state, the length direction of the first swing arm 41 is parallel or approximately parallel to the X direction, and the width direction of the first swing arm 41 is parallel to the Y direction.

[0113] The second swing arm 42 is a mirror image of the first swing arm 41. The second swing arm 42 includes a second rotating part 421, a second sliding part 422, and a second sliding shaft 423. The second rotating part 421 has a second rotating hole 424. The axial direction of the second rotating hole 424 is parallel to the Y direction. The second rotating hole 424 is used to mount the fourth rotating shaft 2, and the second swing arm 42 can rotate relative to the base 10 around the fourth rotating shaft 2. The second sliding part 422 is connected to the second rotating part 421. The structure of the second sliding part 422 matches the structure of the second sliding groove 222, and the second sliding part 422 can slide relative to the second fixed frame 22 along the second sliding groove 222.

[0114] The second sliding shaft 423 is connected between the second rotating part 421 and the second sliding part 422. The axial direction of the second sliding shaft 423 is parallel to the Y direction, and the second sliding shaft 423 and the second rotating hole 424 are spaced apart along the length direction of the second swing arm 42. One end of the second sliding shaft 423 extends away from the second sliding part 422 and the second rotating part 421, and the second sliding shaft 423 extends in the same direction as the first sliding shaft 413. That is, one end of the second sliding shaft 423 protrudes from the second sliding part 422 and the second rotating part 421 in the width direction of the second swing arm 42. The second sliding shaft 423 is used to rotate and slide with the second rotating arm 44. When the rotating shaft mechanism 100 is in the unfolded state, the length direction of the second swing arm 42 is parallel or approximately parallel to the X direction, and the width direction of the second swing arm 42 is parallel to the Y direction.

[0115] Please combine Figure 14 , Figure 14 yes Figure 13 The diagram shows a partial exploded view of the synchronization component 40 from another angle.

[0116] The first rotating arm 43 includes a first rotating body 431 and a third sliding shaft 432. The first rotating body 431 is generally a cuboid structure. When the rotating shaft mechanism 100 is in the unfolded state, the length direction of the first rotating body 431 is parallel to the X direction, the width direction is parallel to the Y direction, and the thickness direction is parallel to the Z direction. The first rotating body 431 includes a first end 4311 and a second end 4312. The first end 4311 and the second end 4312 are located at opposite ends of the length direction of the first rotating body 431.

[0117] The first rotating body 431 is provided with a first sliding hole 433 and a first mounting hole 436. The first sliding hole 433 is a strip-shaped hole. The length direction of the first sliding hole 433 is parallel to the length direction of the first rotating body 431. The depth direction of the first sliding hole 433 is parallel to the width direction of the first rotating body 431, that is, parallel to the Y direction. The first sliding hole 433 is located on the side of the first rotating body 431 near the second end 4312. The first sliding hole 433 includes a first sidewall 434 and a second sidewall 435. The first sidewall 434 and the second sidewall 435 are arranged opposite to each other along the length direction of the first sliding hole 433, that is, opposite to each other along the length direction of the first rotating body 431. The first sidewall 434 is located on the side near the second end 4312. The first sliding hole 433 is used to mount a first sliding shaft 413. The first sliding shaft 413 can rotate and slide relative to the first rotating arm 43 along the first sliding hole 433, so that the first swing arm 41 and the first rotating arm 43 are rotatably and slidably connected.

[0118] In this embodiment, the first mounting hole 436 is a circular hole. The axial direction of the first mounting hole 436 is parallel to the width direction of the first rotating body 431, that is, parallel to the Y direction. The first mounting hole 436 and the first sliding hole 433 are spaced apart along the length direction of the first rotating body 431, and are located on the side of the first sliding hole 433 near the second sidewall 435. That is, the first mounting hole 436 is located between the first end 4311 and the first sliding hole 433. The first mounting hole 436 is used to mount the first rotating shaft 3. The first rotating arm 43 is capable of rotating relative to the base 10 around the first rotating shaft 3.

[0119] In this embodiment, the third sliding shaft 432 is cylindrical. The axial direction of the third sliding shaft 432 is parallel to the Y direction. The third sliding shaft 432 is fixed to one side of the width direction of the first rotating body 431 and extends in a direction away from the first rotating body 431. The third sliding shaft 432 is located on the side of the first mounting hole 436 opposite to the first sliding hole 433, and is spaced apart from the first mounting hole 436. That is, the third sliding shaft 432 is located between the second end 4312 and the first mounting hole 436. In other words, along the direction from the first end 4311 to the second end 4312, the third sliding shaft 432, the first mounting hole 436, and the first sliding hole 433 are sequentially spaced apart along the length direction of the first rotating body 431. The third sliding shaft 432 is used for rotatable and slidable connection with the second rotating arm 44.

[0120] The second rotating arm 44 is generally a cuboid structure. When the rotating shaft mechanism 100 is in the extended state, the length direction of the second rotating arm 44 is parallel to the X direction, the width direction is parallel to the Y direction, and the thickness direction is parallel to the Z direction. The second rotating arm 44 includes a third end 444 and a fourth end 445. The third end 444 and the fourth end 445 are located at opposite ends of the length direction of the second rotating arm 44.

[0121] The second rotating arm 44 is provided with a second sliding hole 441, a third sliding hole 442, and a second mounting hole 443. The second sliding hole 441 is a strip-shaped hole. The length direction of the second sliding hole 441 is parallel to the length direction of the second rotating arm 44. The depth direction of the second sliding hole 441 is parallel to the width direction of the second rotating arm 44, that is, parallel to the Y direction. The second sliding hole 441 includes a third sidewall 4411 and a fourth sidewall 4412. The third sidewall 4411 and the fourth sidewall 4412 are arranged opposite to each other along the length direction of the second sliding hole 441, that is, opposite to each other along the length direction of the second rotating arm 44. The third sidewall 4411 is located on the side closer to the fourth end 445, and the fourth sidewall 4412 is located on the side closer to the third end 444. The second sliding hole 441 is used to install a second sliding shaft 423. The second sliding shaft 423 can rotate and slide relative to the second rotating arm 44 along the second sliding hole 441, thereby realizing the rotational and sliding connection between the second swing arm 42 and the second rotating arm 44.

[0122] In this embodiment, the second mounting hole 443 is a circular hole. The axial direction of the second mounting hole 443 is parallel to the width direction of the second rotating arm 44, that is, parallel to the Y direction. The second mounting hole 443 and the second sliding hole 441 are spaced apart along the length direction of the second rotating arm 44, and are located on the side of the second sliding hole 441 near the fourth sidewall 4412. That is, the second mounting hole 443 is located between the second sliding hole 441 and the third end 444. The second mounting hole 443 is used to mount the second rotating shaft 4, and the second rotating arm 44 can rotate relative to the base 10 around the second rotating shaft 4, thereby realizing the rotational connection between the second rotating arm 44 and the base 10.

[0123] The third sliding hole 442 is a strip-shaped hole. The length direction of the third sliding hole 442 is parallel to the length direction of the second rotating arm 44. The depth direction of the third sliding hole 442 is parallel to the width direction of the second rotating arm 44, that is, parallel to the Y direction. The third sliding hole 442 includes a fifth sidewall 4421 and a sixth sidewall 4422. The fifth sidewall 4421 and the sixth sidewall 4422 are arranged opposite each other along the length direction of the third sliding hole 442, that is, opposite each other along the length direction of the second rotating arm 44. The third sliding hole 442 is located on the side of the second mounting hole 443 facing away from the second sliding hole 441, and is spaced apart from the second mounting hole 443, with the fifth sidewall 4421 located closer to the second mounting hole 443. That is, the third sliding hole 442 is located between the second mounting hole 443 and the third end 444. In other words, along the direction from the third end 444 to the fourth end 445, the third sliding hole 442, the second mounting hole 443, and the second mounting hole 443 are sequentially spaced apart along the length direction of the second rotating arm 44. The third sliding hole 442 is used to install the third sliding shaft 432. The third sliding shaft 432 can rotate and slide relative to the second rotating arm 44 along the third sliding hole 442, thereby realizing the rotational and sliding connection between the first rotating arm 43 and the second rotating arm 44.

[0124] Please combine Figure 5 and Figure 15 , Figure 15 yes Figure 5 A cross-sectional structural schematic diagram of the rotating shaft mechanism 100 shown.

[0125] The first swing arm 41 is connected between the base 10 and the first fixed frame 21, and is rotatably connected to the base 10 and slidably connected to the first fixed frame 21. The first rotating part 411 is sleeved on the outer periphery of the third rotating shaft 1. That is, the third rotating shaft 1 passes through the first rotating hole 414. The first rotating part 411 can rotate relative to the base 10 around the third rotating shaft 1. In this embodiment, the third rotating shaft 1 is fixedly connected to the base 10 and rotatably connected to the first rotating part 411. In other embodiments, the third rotating shaft 1 can also be fixedly connected to the first rotating part 411 and rotatably connected to the base 10. The first sliding part 412 is disposed in the first sliding groove 212 and can slide relative to the first fixed frame 21 along the first sliding groove 212. The two opposite edges of the first sliding part 412 in the Y direction are located between the first extension plate 213 and the bottom wall of the first sliding groove 212. That is, the first extension plate 213 is located on the side of the first sliding part 412 facing away from the bottom wall of the first sliding groove 212.

[0126] When the first fixed frame 21 rotates relative to the base 10, it drives the first swing arm 41 to rotate relative to the base 10. At the same time, the first rotating part 411 rotates relative to the base 10 around the third rotating shaft 1, and the first sliding part 412 slides relative to the first fixed frame 21 along the first sliding groove 212. In this embodiment, by providing the first extension plate 213 in the first fixed frame 21, the first sliding part 412 can be limited in the thickness direction of the first fixed frame 21, thereby preventing the first swing arm 41 from coming off the first fixed frame 21 along the thickness direction of the first fixed frame 21. This improves the stability of the first swing arm 41 sliding along the first sliding groove 212 and enhances the connection stability between the first swing arm 41 and the first fixed frame 21.

[0127] The first rotating arm 43 is rotatably connected to the base 10 and rotatably and slidably connected to the first swing arm 41. The first end 4311 faces the base 10, and the second end 4312 faces the first fixed frame 21. The first rotating shaft 3 passes through the first mounting hole 436, and the first rotating arm 43 can rotate relative to the base 10 around the first rotating shaft 3. In this embodiment, the first rotating shaft 3 is fixedly connected to the base 10 and rotatably connected to the first rotating arm 43. In other embodiments, the first rotating shaft 3 may also be rotatably connected to the base 10 and fixedly connected to the first rotating arm 43. The first sliding shaft 413 of the first swing arm 41 passes through the first sliding hole 433, and the first sliding shaft 413 can rotate and slide relative to the first rotating arm 43 along the first sliding hole 433.

[0128] The second swing arm 42 is connected between the base 10 and the second fixed frame 22, and is rotatably connected to the base 10 and slidably connected to the second fixed frame 22. The second rotating part 421 is sleeved on the outer periphery of the fourth rotating shaft 2. That is, the fourth rotating shaft 2 passes through the second rotating hole 424. The second rotating part 421 can rotate relative to the base 10 around the fourth rotating shaft 2. The second sliding part 422 is provided in the second sliding groove 222 and can slide relative to the second fixed frame 22 along the second sliding groove 222. The two opposite edges of the second sliding part 422 in the Y direction are located between the bottom wall of the second extension plate 223 and the second sliding groove 222. That is, the second extension plate 223 is located on the side of the second sliding part 422 facing away from the bottom wall of the second sliding groove 222.

[0129] When the second fixed frame 22 rotates relative to the base 10, it drives the second swing arm 42 to rotate relative to the base 10. At the same time, the second rotating part 421 rotates relative to the base 10 around the fourth rotating shaft 2, and the second sliding part 422 slides relative to the second fixed frame 22 along the second sliding groove 222. In this embodiment, by providing a second extension plate 223 on the second fixed frame 22, the second sliding part 422 can be limited in the thickness direction of the second fixed frame 22, thereby preventing the second swing arm 42 from dislodging from the second fixed frame 22 along the thickness direction of the second fixed frame 22. This improves the stability of the second swing arm 42 sliding along the second sliding groove 222 and enhances the connection stability between the second swing arm 42 and the second fixed frame 22.

[0130] The second rotating arm 44 is rotatably connected to the base 10 and is positioned between the second swing arm 42 and the first rotating arm 43. The third end 444 faces the base 10, and the fourth end 445 faces the second fixed frame 22. The second rotating shaft 4 passes through the second mounting hole 443, and the second rotating arm 44 is capable of rotating relative to the base 10 around the second rotating shaft 4. In this embodiment, the second rotating shaft 4 is fixedly connected to the base 10 and rotatably connected to the second rotating arm 44. In other embodiments, the second rotating shaft 4 may also be rotatably connected to the base 10 and fixedly connected to the second rotating arm 44.

[0131] The second sliding shaft 423 of the second swing arm 42 passes through the second sliding hole 441, and the second sliding shaft 423 can rotate and slide relative to the second rotating arm 44 along the second sliding hole 441. The second rotating arm 44 and the first rotating body 431 are arranged side by side along the Y direction, with the third end 444 facing the first end 4311. The third sliding shaft 432 of the first rotating arm 43 passes through the third sliding hole 442, and the third sliding shaft 432 can rotate and slide relative to the second rotating arm 44 along the third sliding hole 442. The first rotating arm 43 and the second rotating arm 44 are at least partially opposite each other along the Y direction. That is, the orthographic projections of the first rotating arm 43 and the second rotating arm 44 on the XZ plane at least partially overlap. In other words, the first rotating arm 43 and the second rotating arm 44 reuse the space of the rotating shaft mechanism 100 in the X direction. This reduces the size of the first rotating arm 43 and the second rotating arm 44 in the X direction, which in turn reduces the size of the synchronization component 40 in the X direction. This reduces the space occupied by the synchronization component 40 in the rotating shaft mechanism 100, which helps to reduce the size of the rotating shaft mechanism 100 and makes the rotating shaft mechanism 100 and the electronic device 500 thinner and lighter. It also provides more space for other structures in the rotating shaft mechanism 100, such as damping structures and support plates.

[0132] like Figure 15 As shown, when the rotating shaft mechanism 100 is in the unfolded state, the first fixed frame 21 and the second fixed frame 22 are unfolded relative to each other, the first swing arm 41 and the second swing arm 42 are unfolded relative to each other, and the first rotating arm 43 and the second rotating arm 44 are unfolded relative to each other. The included angle between the first fixed frame 21 and the second fixed frame 22 is 180 degrees or approximately 180 degrees, the included angle between the first swing arm 41 and the second swing arm 42 is 180 degrees or approximately 180 degrees, and the included angle between the first rotating arm 43 and the second rotating arm 44 is 180 degrees or approximately 180 degrees.

[0133] In this embodiment, a first sliding shaft 413 is disposed in a first sliding hole 433 and spaced apart from a second sidewall 435. In this embodiment, the first sliding shaft 413 contacts the first sidewall 434. In other embodiments, the first sliding shaft 413 may have a small gap with the first sidewall 434, or the first sliding shaft 413 may be spaced apart from the first sidewall 434. A second sliding shaft 423 is disposed in a second sliding hole 441 and spaced apart from a fourth sidewall 4412. In this embodiment, the second sliding shaft 423 contacts a third sidewall 4411. In other embodiments, the second sliding shaft 423 may have a small gap with the third sidewall 4411, or the second sliding shaft 423 may be spaced apart from the third sidewall 4411. A third sliding shaft 432 is disposed in a third sliding hole 442 and spaced apart from a sixth sidewall 4422. In this embodiment, the third sliding shaft 432 is spaced apart from a fifth sidewall 4421. In other embodiments, the third sliding shaft 432 may also contact the fifth sidewall 4421.

[0134] Please refer to the following: Figure 15 and Figure 16 , Figure 16 yes Figure 15 The schematic diagram of the cross-sectional structure of the rotating shaft mechanism 100 in the folded state is shown.

[0135] During the process of rotating the shaft mechanism 100 from the unfolded state to the folded state, the first fixed frame 21 and the second fixed frame 22 rotate toward each other, the first swing arm 41 and the second swing arm 42 rotate toward each other, and the first rotating arm 43 and the second rotating arm 44 rotate toward each other.

[0136] When the rotating shaft mechanism 100 is in the unfolded state, the first fixed frame 21 rotates counterclockwise, driving the first swing arm 41 to rotate counterclockwise around the third rotating shaft 1, and causing the first sliding part 412 to slide along the first sliding groove 212. When the first swing arm 41 rotates counterclockwise, the first sliding shaft 413 rotates counterclockwise around the third rotating shaft 1, thereby applying a force to the inner wall of the first sliding hole 433, causing the first rotating arm 43 to rotate counterclockwise around the first rotating shaft 3. At the same time, the first sliding shaft 413 slides from the first side wall 434 toward the second side wall 435 within the first sliding hole 433, and the first sliding shaft 413 rotates axially around the first sliding shaft 413. When the first rotating arm 43 rotates counterclockwise around the first rotating shaft 3, its first end 4311 rotates toward the base 10, its second end 4312 rotates away from the base 10, and its third sliding shaft 432 rotates toward the base 10 around the first rotating shaft 3, thereby applying a force to the inner wall of the third sliding hole 442. This causes the third end 444 of the second rotating arm 44 to rotate toward the base 10, and its fourth end 445 to rotate away from the base 10. In other words, it causes the second rotating arm 44 to rotate clockwise around the second rotating shaft 4. At this time, the third sliding shaft 432 slides within the third sliding hole 442 along the direction from the fifth side wall 4421 to the sixth side wall 4422, and the third sliding shaft 432 rotates relative to the second rotating arm 44 around its axial direction.

[0137] When the second rotating arm 44 rotates clockwise around the second rotating shaft 4, the inner wall of the second sliding hole 441 applies a force to the second sliding shaft 423, causing the second sliding shaft 423 to rotate clockwise relative to the base 10. This causes the second swing arm 42 to rotate clockwise around the fourth rotating shaft 2. Simultaneously, the second sliding shaft 423 slides along the second sliding hole 441 from the third side wall 4411 towards the fourth side wall 4412, and the second sliding shaft 423 rotates relative to the second rotating arm 44 around its axial direction. When the second swing arm 42 rotates clockwise around the fourth rotating shaft 2, the second sliding part 422 rotates around the fourth rotating shaft 2 and slides along the second sliding groove 222, thereby causing the second fixed frame 22 to rotate clockwise relative to the base 10, and thus causing the rotating shaft mechanism 100 to be driven to a folded state.

[0138] like Figure 16 As shown, when the rotating shaft mechanism 100 is in the folded state, the first fixed frame 21 and the second fixed frame 22 are folded relative to each other, and the first swing arm 41 and the second swing arm 42 are folded relative to each other. The first swing arm 41 and the second swing arm 42 are arranged parallel or approximately parallel along the width direction of the base 10. The first rotating arm 43 and the second rotating arm 44 are arranged at an angle. That is, the angle between the length direction of the first rotating arm 43 and the length direction of the second rotating arm 44 is greater than 0 degrees and less than 180 degrees. The first end 4311 is located on the side of the second end 4312 closer to the base 10, that is, the first end 4311 is located on the negative Z-axis side of the second end 4312. The third end 444 is located on the side of the fourth end 445 closer to the base 10, that is, the third end 444 is located on the negative Z-axis side of the fourth end 445.

[0139] The first sliding shaft 413 is spaced apart from both the first sidewall 434 and the second sidewall 435. In other embodiments, the first sliding shaft 413 may also contact the second sidewall 435. The second sliding shaft 423 is spaced apart from both the third sidewall 4411 and the fourth sidewall 4412. In other embodiments, the second sliding shaft 423 may also contact the fourth sidewall 4412. The third sliding shaft 432 is spaced apart from the fifth sidewall 4421 and contacts the sixth sidewall 4422. Alternatively, the third sliding shaft 432 may also be spaced apart from the sixth sidewall 4422.

[0140] When the rotating shaft mechanism 100 rotates from the folded state to the unfolded state, the first fixed frame 21 rotates clockwise, causing the first swing arm 41 to rotate clockwise around the third rotating shaft 1. This, in turn, causes the first rotating arm 43 to rotate clockwise around the first rotating shaft 3 via the first sliding shaft 413. The first sliding shaft 413 then slides along the first sliding hole 433 from the second sidewall 435 toward the first sidewall 434, and simultaneously rotates relative to the first rotating arm 43 within the first sliding hole 433. When the first rotating arm 43 rotates clockwise around the first rotating shaft 3, it causes the second rotating arm 44 to rotate counterclockwise around the second rotating shaft 4 via the third sliding shaft 432. Simultaneously, the third sliding shaft 432 slides along the third sliding hole 442 from the fifth sidewall 4421 to the sixth sidewall 4422, and rotates relative to the second rotating arm 44 within the third sliding hole 442. When the second rotating arm 44 rotates counterclockwise around the second rotating shaft 4, it drives the second sliding shaft 423 to rotate relative to the base 10, thereby driving the second swing arm 42 to rotate counterclockwise around the fourth rotating shaft 2. This causes the second sliding shaft 423 to slide along the second sliding hole 441 from the fourth end 445 towards the third end 444, and simultaneously causes the second sliding shaft 423 to rotate relative to the second rotating arm 44 within the second sliding hole 441. When the second swing arm 42 rotates counterclockwise around the fourth rotating shaft 2, it drives the second fixed frame 22 to rotate counterclockwise relative to the base 10, thereby causing the first fixed frame 21 and the second fixed frame 22 to unfold relative to each other, and thus causing the rotating shaft mechanism 100 to rotate to the unfolded state (e.g., Figure 15 (As shown).

[0141] It is understandable that during the process of rotating the shaft mechanism 100 from the unfolded state to the folded state, and during the process of rotating the shaft mechanism 100 from the folded state to the unfolded state, the first fixed frame 21 and the second fixed frame 22 rotate in opposite directions, the first swing arm 41 and the second swing arm 42 rotate in opposite directions, and the first rotating arm 43 and the second rotating arm 44 rotate in opposite directions.

[0142] In this embodiment, by connecting a first rotating arm 43 and a second rotating arm 44 between the first swing arm 41 and the second swing arm 42, and causing the first swing arm 41 to rotate relative to the base 10, the first rotating arm 43 drives the second rotating arm 44 to rotate, thereby driving the second swing arm 42 to rotate. This achieves synchronous rotation of the first swing arm 41 and the second swing arm 42, which in turn achieves synchronous rotation of the first fixed frame 21 and the second fixed frame 22, as well as the first housing 210 and the second housing 220. In other words, it achieves synchronous rotation of the rotating shaft mechanism 100 and the electronic device 500, thereby facilitating user operation and improving the user experience.

[0143] The rotating shaft mechanism 100 provided in this embodiment can achieve synchronous rotation of the first swing arm 41 and the second swing arm 42 by setting a first rotating arm 43 and a second rotating arm 44 between the first swing arm 41 and the second swing arm 42. There is no need to set a synchronous gear. While ensuring the synchronous rotation requirement of the rotating shaft mechanism 100, the structure of the synchronous component 40 can be simplified, the processing and manufacturing difficulty of the rotating shaft mechanism 100 can be reduced, and the processing and production costs of the rotating shaft mechanism 100 and the electronic equipment 500 can be reduced.

[0144] Meanwhile, in the rotating shaft mechanism 100 provided in this embodiment, the first rotating arm 43 is rotatably connected to the base 10 through the first mounting hole 436 and the first rotating shaft 3; the first rotating arm 43 is rotatably and slidably connected to the first swing arm 41 through the first sliding hole 433 and the first sliding shaft 413; the second rotating arm 44 is rotatably connected to the base 10 through the second mounting hole 443 and the second rotating shaft 4; the second rotating arm 44 is rotatably and slidably connected to the second swing arm 42 through the second sliding hole 441 and the second sliding shaft 423; and the first rotating arm 43 and the second rotating arm 44 are rotatably and slidably connected through the third sliding shaft 432 and the third sliding hole 442. That is, the first rotating arm 43 is connected to the base 10, the first rotating arm 43 is connected to the first swing arm 41, the second rotating arm 44 is connected to the base 10, the second rotating arm 44 is connected to the second swing arm 42, and the first rotating arm 43 is connected to the second rotating arm 44 through pins. This simplifies the connection between the first swing arm 41, the first rotary arm 43, the second rotary arm 44, and the second swing arm 42, making the synchronization component 40 easier to measure and improving its measurement performance. This, in turn, enhances the dimensional accuracy and manufacturability of the first rotary arm 43, the second rotary arm 44, the first swing arm 41, and the second swing arm 42, thereby improving the connection stability between them and enhancing the rotational stability and synchronization accuracy of the synchronization component 40. Furthermore, this reduces wear on the synchronization component 40, improving the reliability and service life of the rotating shaft mechanism 100, and further enhancing its rotational stability and synchronization accuracy.

[0145] It should be noted that "easy to measure" as used here means that the dimensions of the first rotating arm 43, the second rotating arm 44, the first swing arm 41, and the second swing arm 42 are easy to measure. For example, the dimensions of the first sliding shaft 413 provided in the first swing arm 41 are easy to measure, the dimensions of the first sliding hole 433, the third sliding shaft 432, and the first mounting hole 436 provided in the first rotating arm 43 are easy to measure, the dimensions of the second sliding hole 441, the third sliding hole 442, and the second mounting hole 443 provided in the second rotating arm 44 are easy to measure, and the dimensions of the second sliding shaft 423 provided in the second swing arm 42 are easy to measure.

[0146] The above are merely some embodiments and implementation methods of this application. 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 scope of the technology 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 rotating shaft mechanism, characterized in that, include: Base, first swing arm, second swing arm, first rotary arm and second rotary arm; The first swing arm and the second swing arm are respectively connected to opposite sides of the base in the width direction, and both are rotatably connected to the base; The first rotary arm is rotatably connected to the base and rotatably and slidably connected to the first swing arm; The second rotating arm is rotatably connected to the base, and one end of the second rotating arm is rotatably and slidably connected to the second swing arm, while the other end is rotatably and slidably connected to the end of the first rotating arm facing away from the first swing arm. The rotation direction of the first swing arm is opposite to that of the second swing arm, and the rotation direction of the first rotary arm is opposite to that of the second rotary arm.

2. The rotating shaft mechanism according to claim 1, characterized in that, The rotating shaft mechanism has an unfolded state and a folded state; When the rotating shaft mechanism is in the unfolded state, the first swing arm and the second swing arm are located on opposite sides of the width direction of the base, and both are unfolded relative to the base. The length direction of the first swing arm and the length direction of the second swing arm are both parallel to the width direction of the base. When the rotating shaft mechanism is in the folded state, the first swing arm and the second swing arm are arranged opposite each other along the width direction of the base, and the length direction of the first swing arm intersects the length direction of the second swing arm.

3. The rotating shaft mechanism according to claim 2, characterized in that, Along the length of the base, the first and second spiral arms are at least partially opposite to each other.

4. The rotating shaft mechanism according to claim 3, characterized in that, The first rotating arm includes a first end and a second end, which are arranged opposite to each other along the length direction of the first rotating arm. The first end faces the second rotating arm, and the second end faces the first swing arm. The second rotating arm includes a third end and a fourth end, which are arranged opposite to each other along the length direction of the second rotating arm. The third end faces the first rotating arm, and the fourth end faces the second swing arm. When the rotating shaft mechanism rotates from the unfolded state to the folded state, the first end and the third end rotate toward the base, and the second end and the fourth end rotate toward the direction away from the base.

5. The rotating shaft mechanism according to claim 4, characterized in that, The first rotating arm is provided with a first mounting hole, the axial direction of the first mounting hole is parallel to the length direction of the base, and the first mounting hole is spaced apart from both the first end and the second end; The rotating shaft mechanism includes a first rotating shaft, which is fixedly connected to the base, and the extension direction of the first rotating shaft is parallel to the length direction of the base; the first rotating shaft is disposed in the first mounting hole, and the first rotating arm can rotate relative to the base around the first rotating shaft.

6. The rotating shaft mechanism according to claim 5, characterized in that, The first rotating arm is provided with a first sliding hole, which is located between the first mounting hole and the second end, and the extending direction of the first sliding hole is parallel to the length direction of the first rotating arm; The first swing arm includes a first sliding shaft, the extension direction of which is parallel to the length direction of the base; the first sliding shaft is disposed in the first sliding hole and can rotate and slide relative to the first swing arm along the first sliding hole.

7. The rotating shaft mechanism according to claim 6, characterized in that, The second rotating arm is provided with a second mounting hole, the axial direction of the second mounting hole is parallel to the length direction of the base, and the second mounting hole is spaced apart from the third end and the fourth end; The rotating shaft mechanism includes a second rotating shaft, which is fixedly connected to the base, and the extension direction of the second rotating shaft is parallel to the length direction of the base; the second rotating shaft is disposed in the second mounting hole, and the second rotating arm can rotate relative to the base around the second rotating shaft.

8. The rotating shaft mechanism according to claim 7, characterized in that, The second rotating arm includes a second sliding hole, which is located between the second mounting hole and the fourth end, and the extending direction of the second sliding hole is parallel to the length direction of the second rotating arm. The second swing arm includes a second sliding shaft, the extension direction of which is parallel to the length direction of the base; the second sliding shaft is disposed in the second sliding hole and can rotate and slide relative to the second swing arm along the second sliding hole.

9. The rotating shaft mechanism according to claim 8, characterized in that, The second rotating arm is provided with a third sliding hole, which is located between the second mounting hole and the third end, and the extension direction of the third sliding hole is parallel to the length direction of the second rotating arm; The first rotating arm includes a third sliding shaft, the extension direction of which is parallel to the length direction of the base, and the third sliding shaft is located between the first mounting hole and the first end; the third sliding shaft is disposed in the third sliding hole and can rotate and slide relative to the second rotating arm along the third sliding hole.

10. The rotating shaft mechanism according to any one of claims 1 to 9, characterized in that, The rotating shaft mechanism further includes a first fixed frame and a second fixed frame; the side of the first swing arm facing away from the base is disposed on the first fixed frame and is slidably connected to the first fixed frame; the side of the second swing arm facing away from the base is disposed on the second fixed frame and is slidably connected to the second fixed frame.

11. An electronic device, characterized in that, It includes a first housing, a second housing, a display screen, and a pivot mechanism as described in any one of claims 1 to 10, the pivot mechanism connecting the first housing and the second housing; The display screen is mounted on the first housing, the second housing, and the rotating shaft mechanism. When the rotating shaft mechanism rotates, the first housing and the second housing rotate relative to each other, thereby causing the display screen to bend or unfold.

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