CN117167397A

CN117167397A - Rotating shaft mechanism, supporting device and folding screen terminal

Info

Publication number: CN117167397A
Application number: CN202311454127.6A
Authority: CN
Inventors: 黄圣贤
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2023-11-03
Filing date: 2023-11-03
Publication date: 2023-12-05
Anticipated expiration: 2043-11-03
Also published as: CN117167397B

Abstract

The application provides a rotating shaft mechanism, a supporting device and a folding screen terminal, and relates to the technical field of electronic equipment. The folding screen terminal is used for solving the problem that when the folding screen terminal is impacted by external force, sliding parts of a rotating shaft mechanism of the folding screen terminal are possibly separated from each other or mutually extruded, so that the parts are damaged. The rotating shaft mechanism comprises a middle beam, a swing arm, a door plate and a limiting piece. The swing arm is rotationally connected with the middle beam; the swing arm is provided with a first limiting hole. The door plate is provided with a sliding groove, and one end of the swing arm, which is far away from the middle beam, is inserted into the sliding groove and is in sliding connection with the door plate; the inner wall of the sliding chute is provided with a second limiting hole, and the first limiting hole and the second limiting hole respectively penetrate through the swing arm and the door plate; the first limiting hole and the second limiting hole extend along the radial direction. The limiting piece sequentially penetrates through the first limiting hole and the second limiting hole. The door plant is along with swing arm pivoted in-process, and door plant and swing arm relative slip, and the locating part slides along the extending direction in first spacing hole, and slides along the extending direction in second spacing hole.

Description

Rotating shaft mechanism, supporting device and folding screen terminal

Technical Field

The application relates to the technical field of electronic equipment, in particular to a rotating shaft mechanism, a supporting device and a folding screen terminal.

Background

Folding screen terminals are becoming more popular with users because of the large screen display function. The folding screen terminal enables the device to fold and unfold through an internal spindle mechanism. However, when the existing folding screen terminal receives a large impact force, for example, when the terminal falls down, sliding components in the rotating shaft mechanism may be separated from each other or mutually pressed, other components are easily damaged, and the reliability is low.

Disclosure of Invention

The embodiment of the application provides a rotating shaft mechanism, a supporting device and a folding screen terminal, which are used for solving the problem that when the existing folding screen terminal is impacted by external force, sliding parts of the rotating shaft mechanism can be separated from each other or mutually extruded, so that other parts are damaged.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical scheme:

in a first aspect, a spindle mechanism is provided that includes a center sill, a swing arm, a door panel, and a stop. The swing arm is rotationally connected with the middle beam; the swing arm is provided with a first limiting hole. The door plate is provided with a sliding groove, and one end of the swing arm, which is far away from the middle beam, is inserted into the sliding groove and is in sliding connection with the door plate; the inner wall of the sliding chute is provided with a second limiting hole, and the axes of the first limiting hole and the second limiting hole are arranged along the lamination direction of the door plate and the swing arm and respectively penetrate through the swing arm and the door plate; the first limiting hole and the second limiting hole extend along the direction perpendicular to the lamination direction of the door plate and the swing arm, namely extend along the radial direction, and the extending direction of the first limiting hole, the extending direction of the second limiting hole and the extending direction of the sliding groove are intersected in pairs. The limiting piece sequentially penetrates through the first limiting hole and the second limiting hole. Wherein, the door plant is along with swing arm pivoted in-process, door plant and swing arm relative slip, and the locating part is along the extending direction in first spacing hole for the swing arm, and the locating part is along the extending direction in second spacing hole for the door plant slides.

According to the rotating shaft mechanism provided by the first aspect of the application, as the limiting piece sequentially passes through the first limiting hole on the swing arm and the second limiting hole on the door plate, and the extending direction of the first limiting hole is intersected with the extending direction of the second limiting hole, namely the limiting piece is positioned at the intersection point of the first limiting hole and the second limiting hole. When the door plant and swing arm relative slip's in-process, the locating part can be followed the extending direction in first spacing hole and second spacing hole and slided, when the locating part slides to the tip in first spacing hole or second spacing hole, then can prevent door plant and swing arm further relative slip, the locating part is located the both ends in first spacing hole or second spacing hole promptly, then can prevent door plant and swing arm to continue relative slip to can prevent between swing arm and the door plant and break away from each other or extrudees each other, and then can promote pivot mechanism's reliability.

In a possible implementation manner of the first aspect of the present application, the swing arm is capable of driving the door panel to rotate between a first position and a second position relative to the center sill; the first limiting hole is provided with a first end part and a second end part along the extending direction, and the second limiting hole is provided with a third end part and a fourth end part along the extending direction. Under the condition that the swing arm and the door plate are located at the first position, on a plane parallel to the extending direction of the first limiting hole and the extending direction of the second limiting hole, the vertical projections of the first end part and the second end part are mutually overlapped, and the limiting piece sequentially penetrates through the first end part and the third end part. Under the condition that the swing arm and the door plate are located at the second position, on a plane parallel to the extending direction of the first limiting hole and the extending direction of the second limiting hole, the vertical projections of the second end part and the fourth end part are mutually overlapped, and the limiting piece sequentially penetrates through the second end part and the fourth end part.

Therefore, when the swing arm and the door plate are positioned at the first position or the second position, the limiting piece is positioned at the first end part and the third end part, or the limiting piece is positioned at the second end part and the fourth end part, namely, when the swing arm and the door plate rotate to the first position or the second position, the end parts of the first limiting hole and the second limiting hole can prevent the limiting piece from moving, namely, the swing arm and the door plate can be prevented from sliding relatively, the risk that the door plate and the swing arm are separated from each other or are extruded mutually is reduced, and the reliability of the integral structure is improved.

In a possible implementation manner of the first aspect of the present application, the rotating shaft mechanism further includes a limiting portion, a limiting portion is disposed in at least one of the first limiting hole and the second limiting hole, and when the limiting member is located at an end portion of the limiting hole, the limiting portion abuts against the limiting member, and the limiting portion can limit the limiting member to move toward the other end of the limiting hole. Under this structure, can form further spacing to the locating part through spacing portion, can further reduce door plant and swing arm relative sliding's risk, be favorable to further promoting overall structure's reliability still.

In a possible implementation manner of the first aspect of the present application, both end portions of the limiting hole along the extending direction are provided with limiting portions. When door plant and swing arm are located first position or second position promptly, spacing portion homoenergetic forms effective spacing to the locating part to reduce the door plant and swing arm and continue the relative sliding risk.

In a possible implementation manner of the first aspect of the present application, the limiting portions are disposed on two inner walls, which are opposite to each other and parallel to the extending direction of the limiting hole, in the limiting hole. Under this structure, owing to all be provided with spacing portion on two inner walls that spacing hole is relative, consequently, be favorable to making the closing force that the locating part received more balanced, be favorable to further promoting the spacing effect to the locating part.

In a possible implementation manner of the first aspect of the present application, the limiting portion includes a limiting elastic piece, and the limiting elastic piece is disposed on an inner wall of the limiting hole. Therefore, the elastic performance of the limiting elastic piece can apply a pressing force to the limiting piece, so that the limiting piece stays at the end part of the limiting hole. When the user applies external force to fold or unfold the terminal, the limiting piece slides from one end of the limiting hole to the other end, and the limiting piece extrudes the limiting elastic piece, so that the limiting elastic piece is elastically deformed, damping force can be formed, and the use handfeel of the user is improved. And moreover, the user can determine whether the terminal rotates to an unfolding state or a folding state through rotating the hand feeling, so that the user experience is improved.

In a possible implementation manner of the first aspect of the present application, an installation groove is formed on an inner wall of the limiting hole, the limiting elastic piece is abutted in the installation groove, and a part of the area of the limiting elastic piece extends out of the installation groove. Therefore, the limiting elastic sheet is abutted in the mounting groove and clamped in the mounting groove through the elastic performance of the limiting elastic sheet, other fixing processes or parts can be saved, and the production difficulty is reduced.

In one possible implementation manner of the first aspect of the present application, the limiting elastic piece includes a first elastic section and a second elastic section, one end of the first elastic section and one end of the second elastic section, which are connected, extend out of the mounting groove, and the free ends of the first elastic section and the second elastic section are respectively abutted against two opposite inner walls in the mounting groove. Therefore, when the limiting piece extrudes the limiting spring piece, the first elastic section and the second elastic section are elastically deformed in the mounting groove, and after the limiting piece passes over the limiting spring piece, the limiting spring piece is reset, namely, the mounting groove is used for fixing the limiting spring piece and simultaneously providing a deformation space for the limiting spring piece, so that the reliability of the structure is improved.

In a possible implementation manner of the first aspect of the present application, the limiting elastic piece further includes a first extension section, and the first extension section is disposed at one end of the first elastic section away from the second elastic section; a first limiting groove is formed in the inner wall, which is in butt joint with the first elastic section, of the mounting groove, and the first extension section is inserted into the first limiting groove. Under this structure, insert first spacing inslot through first extension, can reduce spacing shell fragment when the resilience resets, spacing shell fragment pops out the risk outside the mounting groove, be favorable to further promoting the reliability of structure.

In a possible implementation manner of the first aspect of the present application, the limiting elastic piece further includes a second extension section, and the second extension section is disposed at an end of the second elastic section away from the second elastic section; a second limiting groove is formed in the inner wall, which is in butt joint with the second elastic section, of the mounting groove, and the second extending section is inserted into the second limiting groove. Under this structure, be favorable to making spacing shell fragment receive spacing constraint more balanced, can further reduce spacing shell fragment and pop out the risk outside the mounting groove to further promote overall structure's reliability.

In a possible implementation manner of the first aspect of the present application, the mounting groove extends along an axis of the limiting hole and penetrates a surface of the door panel or the swing arm. The mounting groove extends along the lamination direction of the door plate and the swing arm and penetrates through the surface of the door plate or the swing arm, so that the limiting elastic sheet can be mounted in the mounting groove through the surface of the door plate or the swing arm, and the mounting difficulty is reduced.

And under the condition that at least one of the first limit groove and the second limit groove is formed in the mounting groove, the first limit groove and the second limit groove also extend along the axis of the limit hole and penetrate through the surface of the door plate or the swing arm.

For example, under the condition that the limiting elastic sheet is installed in the second limiting hole on the door plate, the installation groove, the first limiting groove and the second limiting groove extend along the axial direction of the second limiting hole and penetrate through the two side surfaces of the door plate, which are distributed along the axial direction of the second limiting hole. Therefore, the limiting elastic sheet can be installed on any side surface of the door plate.

In a possible implementation manner of the first aspect of the present application, the limiting portion includes a limiting protrusion, and the limiting protrusion is formed on an inner wall of the limiting hole. Under this structure, can be through forming the protruding structure of integral type on the inner wall in spacing hole, spacing protruding and the inner wall connection in spacing hole be integrated into one piece structure promptly, through this spacing protruding and locating part butt to form effective spacing to the locating part.

In a possible implementation manner of the first aspect of the present application, an end portion of the limiting hole is bent to form a limiting portion. Under this structure, both ends of the limiting hole can be bent to one side of the extending direction of the limiting hole to form a limiting part. When the limiting piece slides into the bending area at the end part of the limiting hole, the limiting piece can be limited to slide along the extending direction of the limiting hole, so that effective limiting can be formed on the limiting piece.

In one possible implementation manner of the first aspect of the present application, the door panel includes a panel body and a connection block, the connection block is fixed on the panel body, the connection block is disposed on a side of the swing arm away from the center sill, the chute is disposed on a surface of the connection block facing the center sill, and the second limiting hole is disposed on the connection block. Therefore, the door plate and the connecting block can be processed respectively, the thickness of the door plate can be reduced, and the volume of the connecting block can be reduced, so that the whole volume of the door plate is reduced, and the whole weight of a terminal is reduced.

In one possible implementation manner of the first aspect of the present application, in a stacking direction of the swing arm and the connecting block, two inner walls, which are oppositely arranged in the chute, are respectively provided with a second limiting hole, and the limiting piece passes through the first limiting hole and the two second limiting holes. Under this structure, the both ends of locating part are located two second spacing downthehole on the connecting block respectively, when the locating part slides along the spacing downthehole of second, are favorable to whole atress balanced, are favorable to reducing the slope to appear in the locating part slip in-process, produce the risk of component on other directions to can guarantee the gliding smooth nature of locating part along the spacing downthehole of second and first spacing, in order to make door plant and swing arm rotate smoothly between first position and second position.

In a possible implementation manner of the first aspect of the present application, the limiting member includes a limiting rod, and the limiting rod is parallel to the axis of the first limiting hole. The rod-shaped structural component is used as the limiting piece, so that the processing is convenient, the cost of the component is low, and the replacement is simple.

For example, the stopper may be a pin, a shaft, or the like. And the cross section of the limiting rod can be in a circular structure, a regular polygon structure and the like.

In a second aspect, a supporting device is provided, the supporting device includes a first shell, a second shell and a rotating shaft mechanism according to any one of the above technical schemes, the rotating shaft mechanism is located between the first shell and the second shell, swing arms and door plates are arranged on two sides of a center sill of the rotating shaft mechanism along the length direction, the first shell is connected with the door plate on one side of the center sill, and the second shell is connected with the door plate on the other side of the center sill.

The supporting device provided by the second aspect of the present application, due to comprising the rotating shaft mechanism according to any one of the above claims, can solve the same technical problems and can achieve the same technical effects.

In a third aspect, a folding screen terminal is provided that includes a folding screen and a support device. The folding screen includes a first portion, a second portion, and a third portion, the third portion being located between the first portion and the second portion. The supporting device is as defined in the technical scheme, the first part is fixed on the first shell, the second part is fixed on the second shell, and the third part is supported on the rotating shaft mechanism.

The folding screen terminal provided by the third aspect of the application comprises the supporting device, so that the same technical problems can be solved and the same technical effects can be achieved.

Drawings

Fig. 1 is a structural diagram of a folding screen terminal according to an embodiment of the present application;

fig. 2 is a front view of a folding screen terminal according to an embodiment of the present application;

fig. 3 is a front view of a folding screen terminal in a folded state according to an embodiment of the present application;

fig. 4 is a front view of another folding screen terminal in a folded state according to an embodiment of the present application;

FIG. 5 is a block diagram of a spindle mechanism according to an embodiment of the present application;

FIG. 6 is a cross-sectional view of a spindle mechanism according to an embodiment of the present application;

FIG. 7 is a cross-sectional view of a hinge mechanism in an extended position according to an embodiment of the present application;

FIG. 8 is an assembly view of another spindle mechanism according to an embodiment of the present application;

FIG. 9 is an exploded view of another spindle mechanism according to an embodiment of the present application;

FIG. 10 is a partial block diagram of the spindle mechanism provided in FIGS. 8 and 9;

FIG. 11 is a relative position block diagram of the swing arm and door panel of the pivot mechanism (in the deployed position) provided in FIG. 8;

FIG. 12 is an assembly view of the spindle mechanism provided in FIG. 8 in a folded position;

FIG. 13 is a view of the relative position between the swing arm and the door panel of the spindle mechanism (in a folded state) provided in FIG. 8;

FIG. 14 is an exploded view of a door panel according to an embodiment of the present application;

FIG. 15 is an enlarged view of a partial block diagram of the plate body provided in FIG. 14;

FIG. 16 is a block diagram of another embodiment of the present application showing a connection block and a swing arm of a hinge mechanism in an extended position;

FIG. 17 is a block diagram of the connection block and swing arm provided in FIG. 16 in a folded position;

FIG. 18 is an enlarged view of the area E of FIG. 17;

FIG. 19 is an exploded view of another spacing clip and connection block according to an embodiment of the present application;

FIG. 20 is an assembly view of the stop spring, the connection block and the stop lever shown in FIG. 19;

FIG. 21 is a diagram illustrating an assembly of a second limiting hole and a limiting spring on a connecting block according to an embodiment of the present application;

fig. 22 is a block diagram of another limiting portion according to the embodiment of the present application;

fig. 23 is a block diagram of a further limiting portion according to the embodiment of the present application.

Reference numerals: 01-a folding screen terminal; 10-folding screen; 11-a first part; 12-a second part; 13-a third part; 20-supporting means; 21-a first housing; 21 a-a first abutment surface; 22-a second housing; 22 a-a second abutment surface; 23-a spindle mechanism; 23 a-a third abutment surface; 100-middle beam; 200-swinging arms; 210-a first limiting hole; 210 a-a first end; 210 b-a second end; 300-door panel; 310-plate body; 320-connecting blocks; 321-sliding grooves; 322-a second limiting hole; 322 a-a third end; 322 b-fourth end; 323-mounting groove; 324-a first limit groove; 325-a second limit groove; 400-limiting piece; 410-a limit rod; 500-limit parts; 510-limiting shrapnel; 511-a first elastic segment; 512-a second elastic segment; 513-a first stretch; 514-a second extension; 520-limit protrusions; 600-damping assembly; 30-secondary screen.

Detailed Description

The following description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, but not all embodiments.

Hereinafter, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature.

Furthermore, in the present application, directional terms "upper", "lower", etc. are defined with respect to the orientation in which the components are schematically disposed in the drawings, and it should be understood that these directional terms are relative concepts, which are used for description and clarity with respect thereto, and which may be changed accordingly in accordance with the change in the orientation in which the components are disposed in the drawings.

In the present application, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium.

The embodiment of the application provides a folding screen terminal which can be one type of electronic equipment with a folding screen, such as a folding screen mobile phone. The mobile phone with the folding screen can be a mobile phone with an external folding display screen or an internal folding display screen. Hereinafter, a folding screen terminal will be described as an example of a mobile phone having an internal folding display screen.

Specifically, referring to fig. 1 and fig. 2, fig. 1 is a block diagram of a folding screen terminal 01 according to an embodiment of the present application, and fig. 2 is a front view of the folding screen terminal 01 according to an embodiment of the present application. The folding screen terminal 01 may include a folding screen 10 and a supporting device 20, where the folding screen 10 is supported and attached to the supporting device 20, and the supporting device 20 can drive the folding screen 10 to rotate between an unfolded state and a folded state. It will be appreciated that fig. 1 and 2 only schematically illustrate some of the components included in the folding screen terminal 01, and the actual shape, actual size, actual position and actual configuration of these components are not limited by the structure shown in the drawings.

For convenience of description of the embodiments below, an XYZ coordinate system is established, and when the folding screen terminal 01 is in an unfolded state, the width direction of the folding screen terminal 01 is defined as an X-axis direction, the length direction of the folding screen terminal 01 is defined as a Y-axis direction, and the thickness direction of the folding screen terminal 01 is defined as a Z-axis direction. It should be noted that, the coordinate system of the folding screen terminal 01 may be flexibly set according to actual needs, and the present application is given only by way of example and is not to be construed as a particular limitation of the present application.

The folding screen 10 may include a first portion 11, a second portion 12, and a third portion 13, the third portion 13 being disposed between the first portion 11 and the second portion 12. When the folding screen terminal 01 is in the folded state, the third portion 13 of the folding screen 10 is folded and the first portion 11 is disposed opposite the second portion 12. At least the third portion 13 of the folding screen 10 may be made of a flexible material, and the first portion 11 and the second portion 12 of the folding screen 10 may be made of a flexible material, may be made of a rigid material, and may be made of a flexible material and may be made of a rigid material. Therefore, the present application is not particularly limited thereto.

The folding screen 10 may be an organic light-emitting diode (OLED) display screen, an active-atrix organic light-emitting diode (AOLED) display screen, a mini-led (Mini organic light-emitting diode) display screen, a micro-led (icro organic light-emitting diode) display screen, a micro-organic led (Micro organic light-emitting diode) display screen, a quantum dot led (quantum dot light emitting diode, QLED) display screen, a liquid crystal display (liquid crystal display, LCD) or the like.

The supporting device 20 may include a first housing 21, a second housing 22, and a rotation shaft mechanism 23, wherein the rotation shaft mechanism 23 is connected between the first housing 21 and the second housing 22. The first casing 21 has a first contact surface 21a, and the first portion 11 of the folding screen 10 is supported by and contacts the first contact surface 21 a. The second housing 22 has a second contact surface 22a, and the second portion 12 of the folding screen 10 is supported by and contacts the second contact surface 22 a. The rotating shaft mechanism 23 has a third contact surface 23a, and the third portion 13 of the folding screen 10 is supported by and contacts the third contact surface 23 a. The first housing 21 and the second housing 22 are rotatably coupled by a rotation shaft mechanism 23 so that the folding screen terminal 01 can be rotated between the above-described unfolded state and folded state.

In the case where the folding screen terminal 01 is in the unfolded state, please continue to refer to fig. 1 and 2, and fig. 1 and 2 are structural diagrams of the folding screen terminal 01 in the unfolded state. The first bonding surface 21a, the second bonding surface 22a and the third bonding surface 23a are in the same plane, so that the folding screen 10 can be fully unfolded, that is, the first portion 11, the second portion 12 and the third portion 13 of the folding screen 10 are in the same plane, and the flatness of the folding screen 10 can be ensured. In this state, the large screen display of the folding screen terminal 01 can be realized, and better use experience can be brought to the user. Illustratively, when a user views a movie, a large screen view may be used, enabling an enhanced viewing experience.

In the case where the folding screen terminal 01 is in a folded state, please refer to fig. 3, fig. 3 is a front view of the folding screen terminal 01 in a folded state according to an embodiment of the present application. The first portion 11 and the second portion 12 of the folding screen 10 are opposite, the third portion 13 is bent, and the supporting device 20 is protected outside the folding screen 10, i.e. the folding screen 10 is located between the first casing 21 and the second casing 22 of the supporting device 20. In this state, the folding screen 10 is invisible to the user to prevent the folding screen 10 from being scratched or damaged, so that effective protection can be provided to the folding screen 10. For example, when the mobile phone is not required to be used, the terminal can be folded and placed so as to avoid screen damage.

In some embodiments, referring to fig. 4, fig. 4 is a front view of another folding screen terminal 01 in a folded state according to an embodiment of the present application. The above-described folding screen terminal 01 may further include a sub-screen 30 (may also be referred to as an external screen), and the sub-screen 30 is a planar screen and is disposed on a side of the first housing 21 away from the folding screen 10 or on a side of the second housing 22 away from the folding screen 10. Under the condition that the folding screen terminal 01 is in a folding state, the auxiliary screen 30 can be used for displaying images, and a user can perform one-hand operation, so that the use scene of the folding screen terminal 01 is more diversified, and the user experience is further improved. Illustratively, while the user is riding in a public transportation, one hand is required to hold the armrest, at which point one hand operation may be performed using the secondary screen 30 display.

On this basis, referring to fig. 5 and fig. 6, fig. 5 is a structural diagram of a rotating shaft mechanism 23 according to an embodiment of the present application, and fig. 6 is a sectional structural diagram of the rotating shaft mechanism 23 according to an embodiment of the present application. The spindle mechanisms 23 are shown in the folded position in fig. 5 and 6.

The rotating shaft mechanism 23 may include a middle beam 100, a swing arm 200, and a door panel 300, the swing arm 200 and the door panel 300 are disposed on two sides of the middle beam 100 along a length direction (i.e., the Y-axis direction), a first end of the swing arm 200 is rotationally connected with the middle beam 100, and a rotation direction of the swing arm 200 located at two sides of the middle beam 100 is opposite, a second end of the swing arm 200 is slidably connected with the door panel 300, the door panel 300 located at two sides of the middle beam 100 is fixedly connected with the first housing 21 and the second housing 22, and the swing arm 200 can drive the door panel 300 to rotate between an unfolded position and a folded position, so that the door panel 300 drives the first housing 21 and the second housing 22 to rotate, so that the folding screen terminal 01 can rotate between the unfolded state and the folded state.

In some embodiments, a plurality of swing arms 200 may be disposed between the middle beam 100 and the door panel 300, and the swing arms 200 may be rotatably connected to the middle beam 100 by the same connection method or by different connection methods. For example, the swing arm 200 and the center sill 100 may adopt a connection manner of an arc slot and an arc slider, so that the swing arm 200 can rotate along the arc slot relative to the center sill 100; or, the swing arms 200 and the middle beam 100 can be connected in a rotating way through the matching of the rotating shaft and the shaft hole, and the swing arms 200 positioned at the two sides of the middle beam 100 can be meshed through a gear set, so that the swing arms 200 at the two sides of the middle beam 100 can synchronously and reversely rotate.

In addition, the rotating shaft mechanism 23 may further include a damping assembly 600, where the damping assembly 600 is used to provide a damping force during the rotation of the door panel 300 and the swing arm 200 relative to the center sill 100, so as to increase the feel of the user during use, thereby being beneficial to improving the user experience.

In addition, the sliding direction of the swing arm 200 relative to the door panel 300 may be perpendicular to the axis (i.e., the Y-axis direction) of the swing arm 200 relative to the center sill 100, and during the process that the swing arm 200 drives the door panel 300 to rotate relative to the center sill 100, the door panel 300 and the swing arm 200 slide relatively, so that the relative distance between the door panel 300 and the center sill 100 and the rotation angle of the door panel 300 can be adjusted.

However, when a large impact force is applied to the folding screen terminal 01, the swing arm 200 and the door panel 300 may slide relatively further at the limit position, which may affect the reliability of other components or may directly cause damage to other components. The limit position between the swing arm 200 and the door 300 is the relative position between the swing arm 200 and the door 300 when the folding screen terminal 01 is in the above-described unfolded state or folded state.

As an example, with continued reference to fig. 6, when the folding screen terminal 01 is in the folded state, the folding screen terminal 01 falls down, the door panel 300 and the swing arm 200 are caused to move in directions approaching each other, that is, the door panel 300 slides in a direction approaching the center sill 100 (indicated by a direction a in fig. 6), and due to a large impact force, the relative position of the door panel 300 and the swing arm 200 exceeds a limit position, so that the door panel 300 drives the first housing 21, the second housing 22 and the folding screen 10 to move toward the center sill 100, which is easy to squeeze the folding screen 10, and may further cause the folding screen 10 to fail.

In addition, when the folding screen terminal 01 is bounced after falling to the ground, since the swing arm 200 is connected to the center sill 100, the door panel 300 slides in a direction away from the center sill 100 (i.e., a direction opposite to the direction a in fig. 6), which may cause the door panel 300 and the swing arm 200 to separate from each other, resulting in failure of the rotating shaft mechanism 23, and affecting rotation of the folding screen terminal 01 to the unfolded state.

Alternatively, referring to fig. 7, fig. 7 is a cross-sectional view of a hinge mechanism 23 in a deployed position according to an embodiment of the present application. In the case where the folding screen terminal 01 is in the above-mentioned unfolded state, that is, the rotation shaft mechanism 23 is in the unfolded position, when the user presses the terminal in the middle of the two sides of the X-axis direction, the door panel 300 and the swing arm 200 will slide in the direction approaching each other, that is, the door panel 300 drives the first housing 21 and the second housing 22 shown in fig. 2 to move in the direction approaching the center sill 100 (shown in the B-direction in fig. 7), which may cause the folding screen 10 to arch in the Z-axis direction (shown in the C-direction in fig. 7), and may cause the folding screen 10 to fail.

In order to solve the above-mentioned problems, please refer to fig. 8, 9 and 10, fig. 8 is an assembly diagram of another rotating shaft mechanism 23 according to an embodiment of the present application, fig. 9 is an exploded view of another rotating shaft mechanism 23 according to an embodiment of the present application, fig. 10 is a partial structure diagram of the rotating shaft mechanism 23 according to fig. 8 and 9, and broken lines in fig. 10 indicate an internal structure. The rotating shaft mechanism 23 may be applied to the folding screen terminal 01 shown in fig. 1 to 3, and the rotating shaft mechanism 23 may include the center sill 100, the swing arm 200, the door panel 300, and the stopper 400.

Specifically, the swing arms 200 and the door panel 300 are disposed on two sides of the center sill 100 (along the Y-axis direction), and a plurality of swing arms 200 may be disposed between the door panel 300 and the center sill 100 at intervals along the Y-axis direction, one end of the swing arm 200 is rotatably connected to the center sill 100, and the rotation directions of the swing arms 200 located on two sides of the center sill 100 are opposite, so that the folding screen terminal 01 can rotate between a folded state and an unfolded state.

Illustratively, the pivotal connection between the swing arms 200 and the center sill 100 may be the same or different. For example, the swing arm 200 and the center sill 100 may adopt a connection manner of an arc slot and an arc slider, so that the swing arm 200 can rotate along the arc slot relative to the center sill 100; or, the swing arms 200 and the middle beam 100 can be connected in a rotating way through the matching of the rotating shaft and the shaft hole, and the swing arms 200 positioned at the two sides of the middle beam 100 can be meshed through a gear set, so that the swing arms 200 at the two sides of the middle beam 100 can synchronously and reversely rotate. Therefore, the present application is not particularly limited thereto.

The door panel 300 is provided with a sliding slot 321 (as shown by a dotted line in fig. 10), and one end of the swing arm 200 away from the center sill 100 is inserted into the sliding slot 321, so that the swing arm 200 is slidably connected with the door panel 300. The sliding direction between the swing arm 200 and the door panel 300 is perpendicular to the rotation axis of the swing arm 200 rotatably connected to the center sill 100. For example, the rotation axis of the swing arm 200 with respect to the center sill 100 may be parallel to the Y-axis direction, and the sliding direction between the swing arm 200 and the door panel 300 may be perpendicular to the Y-axis direction.

The swing arm 200 is provided with a first limiting hole 210, the door panel 300 is provided with a second limiting hole 322, the axes of the first limiting hole 210 and the second limiting hole 322 are both arranged along the stacking direction of the door panel 300 and the swing arm 200, the first limiting hole 210 penetrates through the two side surfaces of the swing arm 200, the second limiting hole 322 penetrates through the surface of the door panel 300, and the second limiting hole 322 is communicated with the chute 321. The first limiting hole 210 and the second limiting hole 322 extend along a direction perpendicular to the stacking direction of the door panel 300 and the swing arm 200 (i.e., the first limiting hole 210 and the second limiting hole 322 extend along the radial direction of the first limiting hole 210 and the second limiting hole 322), so that the first limiting hole 210 and the second limiting hole 322 form a strip-shaped through hole, and the sliding directions of the first limiting hole 210, the second limiting hole 322 and the swing arm 200 sliding relatively to the door panel 300 are intersected two by two.

With continued reference to fig. 8, 9 and 10, the limiting member 400 may sequentially pass through the first limiting hole 210 and the second limiting hole 322 along the stacking direction of the door panel 300 and the swing arm 200, i.e. the limiting member 400 is located at an intersection point where the first limiting hole 210 and the second limiting hole 322 intersect. In the process that the door panel 300 rotates with the swing arm 200 relative to the center sill 100, the door panel 300 slides relative to the swing arm 200, the limiting member 400 slides relative to the swing arm 200 along the extending direction of the first limiting hole 210, and the limiting member 400 slides relative to the door panel 300 along the extending direction of the second limiting hole 322.

For example, referring to fig. 10, the limiting member 400 may be a limiting rod 410 or a pin, and in this embodiment, the limiting rod 410 is exemplified as the limiting rod 410, and the limiting rod 410 is parallel to the axes of the first limiting hole 210 and the second limiting hole 322.

The first limiting hole 210 has a first end 210a and a second end 210b along the extending direction, and the second limiting hole 322 has a third end 322a and a fourth end 322b along the extending direction. Along the sliding direction in which the swing arm 200 slides relative to the door panel 300, the first end 210a and the third end 322a are positioned on the same straight line, and the second end 210b and the fourth end 322b are positioned on the same straight line. That is, the line connecting the first end 210a and the third end 322a is parallel to the sliding direction between the swing arm 200 and the door panel 300, and the line connecting the second end 210b and the fourth end 322b is parallel to the sliding direction between the swing arm 200 and the door panel 300.

In the case where the folding screen terminal 01 is in the unfolded state (as shown in fig. 1 and 2), that is, the swing arm 200 and the door panel 300 are located in the unfolded position shown in fig. 8. Referring to fig. 11, fig. 11 is a diagram showing a relative position between the swing arm 200 and the door panel 300 of the pivot mechanism 23 (in the unfolded position) provided in fig. 8, on a plane parallel to the extending direction of the first limiting hole 210 and parallel to the extending direction of the second limiting hole 322, the vertical projections of the first end 210a of the first limiting hole 210 and the third end 322a of the second limiting hole 322 are overlapped, and the limiting rod 410 sequentially passes through the first end 210a and the third end 322a, i.e. the limiting rod 410 is located at one end of the first limiting hole 210 and one end of the second limiting hole 322.

In this state, when the door panel 300 moves to the extreme position in the direction approaching the center sill 100 and presses the terminal end from both sides to the middle in the X-axis direction, since the stopper rod 410 is positioned at the first end 210a and the third end 322a, the door panel 300 cannot slide further in the direction approaching the center sill 100, and thus the first and second cases 21 and 22 can be prevented from being pressed to the middle, so that the upward arching of the folding screen 10 can be prevented to protect the folding screen 10 from being intact and prevent the folding screen 10 from being failed.

In the process of rotating the folding screen terminal 01 from the unfolded state to the folded state, the door panel 300 and the swing arm 200 move away from each other, that is, the door panel 300 slides away from the center sill 100 shown in fig. 8 (as shown in the direction D1 in fig. 11). Since the extending direction of the first limiting hole 210, the extending direction of the second limiting hole 322, and the sliding direction of the door panel 300 sliding relative to the swing arm 200 intersect each other, that is, the extending direction of the first limiting hole 210 and the extending direction of the second limiting hole 322 are both inclined with respect to the sliding direction of the door panel 300. Therefore, when the door panel 300 slides relative to the swing arm 200, the stopper rod 410 can receive a component force along the extending directions of the first stopper hole 210 and the second stopper hole 322, so that the stopper rod moves from the first end 210a to the second end 210b (as shown in the direction D2 in fig. 11) relative to the swing arm 200, and the stopper rod 410 moves from the third end 322a to the fourth end 322b (as shown in the direction D3 in fig. 11) relative to the door panel 300.

In the case where the folding screen terminal 01 is rotated to the folded state, that is, the swing arm 200 and the door panel 300 are located at the folded position, referring to fig. 12 and 13, fig. 12 is an assembly view of the hinge mechanism 23 provided in fig. 8 in the folded position, and fig. 13 is a relative position structure diagram between the swing arm 200 and the door panel 300 of the hinge mechanism 23 (in the folded state) provided in fig. 8. On a plane parallel to the extending direction of the first limiting hole 210 and parallel to the extending direction of the second limiting hole 322, the vertical projections of the second end 210b of the first limiting hole 210 and the fourth end 322b of the second limiting hole 322 coincide with each other, and the limiting rod 410 sequentially passes through the second end 210b and the fourth end 322b, that is, the limiting rod 410 is located at the other end of the first limiting hole 210 and the second limiting hole 322.

In this state, the door panel 300 moves to the extreme position in the direction away from the center sill 100, and the door panel 300 cannot slide further in the direction away from the center sill 100, so that the door panel 300 and the swing arm 200 can be prevented from being separated from each other, and the overall reliability of the rotating shaft mechanism 23 can be improved.

It will be appreciated that the above embodiment is only one possible example, and in other possible examples, the door panel 300 may be moved to a limit position away from the center sill 100 with the folding screen terminal 01 in the unfolded state, and the stop lever 410 is located at the second end 210b and the fourth end 322 b; with the folding screen terminal 01 in a folded state, the door panel 300 moves to a limit position near the center sill 100, and the stopper rod 410 is located at the first end 210a and the third end 322 a. Therefore, the present application is not particularly limited thereto.

Based on this, when the folding screen terminal 01 provided in the embodiment of the present application is in an unfolded state or a folded state, the limiting rod 410 sequentially passes through the first limiting hole 210 and the second limiting hole 322, so that the swing arm 200 and the door panel 300 can be limited, and when the terminal is impacted, the risk of further relative sliding between the door panel 300 and the swing arm 200 can be reduced.

Also, when the folding screen terminal 01 is in the unfolded state or the folded state, the intersection point between the first and second limiting holes 210 and 322 is located at the end, i.e., the limiting rod 410 is located at the end of the first and second limiting holes 210 and 322. In this way, since the stop lever 410 is located at one end portions of the first stop hole 210 and the second stop hole 322 (for example, the stop lever 410 is located at the first end portion 210a and the third end portion 322 a), that is, the stop lever 410 can only slide toward the other end portions of the first stop hole 210 and the second stop hole 322 (that is, the second end portion 210b and the fourth end portion 322 b), the door panel 300 and the swing arm 200 can be prevented from further sliding relatively at the limit position, which is beneficial to further reducing the risk of excessive sliding extrusion or mutual detachment between the door panel 300 and the swing arm 200.

In some embodiments, referring to fig. 14, fig. 14 is an exploded view of a door panel 300 according to an embodiment of the present application, the door panel 300 may include a panel body 310 and a connection block 320, the panel body 310 is fixedly connected to the first and second housings 21 and 22 shown in fig. 1 and 2, the connection block 320 is fixed to one side surface of the panel body 310, and the other side surface of the panel body 310 is used to support the folding screen 10 shown in fig. 1 and 2. The connecting block 320 is located at a side of the swing arm 200 away from the center sill 100, the sliding groove 321 is formed on a surface of the connecting block 320 facing the center sill 100, and one end of the swing arm 200 away from the center sill 100 is inserted into the sliding groove 321 to realize sliding connection between the swing arm 200 and the connecting block 320.

Referring to fig. 15, fig. 15 is an enlarged view of a partial structure of the plate body 310 shown in fig. 14. Along the stacking direction of the swing arm 200 and the connection block 320 (i.e., the stacking direction of the swing arm 200 and the door panel 300), two opposite inner walls in the sliding groove 321 are respectively provided with a second limiting hole 322, and the limiting piece 400 shown in fig. 10 passes through the first limiting hole 210 and the two second limiting holes 322. Under this structure, the force balance of the stop lever 410 is ensured in the process of relatively sliding the swing arm 200 and the door panel 300, so that the stop lever 410 can slide along the extending directions of the first stop hole 210 and the second stop hole 322 more smoothly.

In some examples, at least one of the two second limiting holes 322 located at both sides of the sliding slot 321 penetrates through a surface of the connecting block 320, which is far away from the inner wall of the sliding slot 321, along the axial direction thereof, so that the limiting rod 410 is conveniently inserted into the second limiting hole 322 from the outer side of the connecting block 320, and sequentially passes through the first limiting hole 210 on the swing arm 200 and the second limiting hole 322 at the other side of the sliding slot 321, thereby being beneficial to reducing the installation difficulty.

Illustratively, the second limiting hole 322 of the two second limiting holes 322 on the side away from the plate body 310 may penetrate the surface of the connection block 320 on the side away from the plate body 310 in the axial direction thereof. Thus, in the production process, no matter the connection block 320 is connected with the plate body 310, the limit rod 410 is inserted to connect the connection block 320 with the swing arm 200; still insert gag lever post 410 earlier and make connecting block 320 and swing arm 200 be connected, be connected connecting block 320 and plate body 310 again, all can not influence production, be favorable to reducing the assembly degree of difficulty, promote production efficiency.

Alternatively, referring to fig. 15, two second limiting holes 322 may extend along the axial direction thereof and penetrate through two side surfaces of the connecting block 320. Therefore, the stop lever 410 can be inserted into any side surface of the connecting block 320, so that the connecting block 320 is connected with the swing arm 200, which is beneficial to further reducing the assembly difficulty and improving the production efficiency.

On this basis, in order to further improve the reliability of the limit lever 410 for limiting between the door panel 300 and the swing arm 200. Referring to fig. 16 and 17, fig. 16 is a structural diagram of a connection block 320 of another rotating shaft mechanism 23 and a swing arm 200 in an extended position according to an embodiment of the present application, and fig. 17 is a structural diagram of the connection block 320 and the swing arm 200 in a folded position according to fig. 16. The rotating shaft mechanism 23 may further include a limiting portion 500, where the limiting portion 500 is disposed in at least one of the first limiting hole 210 and the second limiting hole 322, that is, the limiting portion 500 may be disposed in the first limiting hole 210, may be disposed in the second limiting hole 322, and may further be disposed in both the first limiting hole 210 and the second limiting hole 322. In the following embodiments, the limiting portion 500 is disposed in the second limiting hole 322.

The stopper 500 is provided at an end of the second stopper hole 322, and when the stopper rod 410 is positioned at one end of the second stopper hole 322 (for example, the fourth end 322b shown in fig. 10), the stopper 500 is in contact with the stopper rod 410, and the stopper 500 can restrict the movement of the stopper rod 410 toward the other end of the second stopper hole 322 (that is, the fourth end 322b shown in fig. 10).

As an example, referring to fig. 16 and 17, the limiting portion 500 may be a limiting elastic piece 510, and the limiting elastic piece 510 may be fixed on an inner wall of the second limiting hole 322, so that a limit is formed on the limiting rod 410 by the limiting elastic piece 510, when the terminal rotates between the unfolded state and the folded state, a user only needs to apply a certain external force, the limiting elastic piece 510 is extruded by the limiting rod 410, and the limiting elastic piece 510 is deformed, so that the limiting rod 410 moves to the other end of the second limiting hole 322 beyond the limiting elastic piece 510.

It should be noted that, the above-mentioned limiting elastic piece 510 may be disposed at a position of the second limiting hole 322 along the extending direction thereof, where the position is close to the end, for example, when the limiting rod 410 is located at the second end 210b of the second limiting hole 322, the limiting elastic piece 510 abuts against a side of the limiting rod 410 away from the second end 210b, so as to effectively limit the limiting rod 410.

In some embodiments, referring to fig. 16 and 17, the inner wall of the second limiting hole 322 may be provided with a mounting groove 323, the limiting spring 510 may be abutted in the mounting groove 323, and a partial area of the limiting spring 510 extends out of the mounting groove 323, that is, a partial area of the limiting spring 510 is located in the second limiting hole 322.

For example, the limiting elastic piece 510 may include a first elastic section 511 and a second elastic section 512, wherein one end of the first elastic section 511 and one end of the second elastic section 512 connected with each other extend out of the mounting groove 323, and the free ends of the first elastic section 511 and the second elastic section 512 respectively abut against two opposite inner walls in the mounting groove 323, for example, the free ends of the first elastic section 511 and the second elastic section 512 respectively abut against two inner walls in the mounting groove 323 and distributed along the extending direction of the second limiting hole 322. Thus, when the limiting rod 410 presses the limiting spring piece 510, the limiting spring piece 510 can deform into the mounting groove 323, so that the limiting rod 410 passes over the limiting spring piece 510 and moves towards the other end of the second limiting hole 322.

Also, referring to fig. 18, fig. 18 is an enlarged view of the E region structure of fig. 17. The inclination angle of the first elastic section 511 is smaller than the inclination angle of the second elastic section 512, that is, the angle of an included angle a formed between the first elastic section 511 and the bottom surface of the mounting groove 323 is smaller than the included angle b formed between the second elastic section 512 and the bottom surface of the mounting groove 323.

Thus, when the stop lever 410 slides into the end of the second stop hole 322, the stop lever 410 can slide along the first elastic section 511, and the resistance applied to the stop lever 410 is smaller due to the smaller inclination angle, so that the stop lever 410 slides into the end of the second stop hole 322.

When the stopper rod 410 slides into the end of the second stopper hole 322, since the inclination angle of the second elastic section 512 is large, a large resistance (compared with the resistance applied by the first elastic section 511) can be applied to the stopper rod 410, thereby effectively stopping the stopper rod 410.

In addition, the starting force of the folding screen terminal 01 during rotation between the unfolding state and the folding state can be increased through the limiting elastic sheet, namely, a user needs to apply a larger external force, the folding screen terminal 01 can be rotated, namely, the limiting rod 410 is separated from the end parts of the second limiting hole 322 and the first limiting hole 210, and the use handfeel of the user is optimized. And when the folding screen terminal 01 is about to rotate to an unfolding state or a folding state, buffering can be realized, namely the limiting rod 410 is abutted to the first elastic section 511 and moves towards the end part of the second limiting hole 322, so that effective protection can be formed on the folding screen terminal 01.

On this basis, referring to fig. 19 and 20, fig. 19 is an exploded view of another limiting spring 510 and a connecting block 320 according to an embodiment of the present application, and fig. 20 is an assembled view of the limiting spring 510, the connecting block 320 and the limiting rod 410 according to fig. 19. The limiting spring 510 may further include a first extension portion 513, where the first extension portion 513 is connected to an end of the first elastic portion 511 away from the second elastic portion 512, i.e. disposed at a free end of the first elastic portion 511. The inner wall of the mounting groove 323, which is abutted against the first elastic section 511, is provided with a first limiting groove 324, and the first extension section 513 is inserted into the first limiting groove 324. Under this structure, through inserting first extension 513 in first spacing groove 324, be favorable to reducing spacing shell fragment 510 and pop out the risk of mounting groove 323, be favorable to promoting overall structure's reliability.

In addition, the limiting elastic piece 510 may further include a second extending section 514, where the second extending section 514 is disposed at an end of the second elastic section 512 away from the first elastic section 511, that is, a free end of the second extending section 514. A second limiting groove 325 is formed in the inner wall of the mounting groove 323, which is abutted against the second elastic section 512, and the second extending section 514 is inserted into the first limiting groove 324. Under this structure, can make spacing shell fragment 510 atress more balanced, be favorable to further promoting overall structure's reliability.

To facilitate the installation of the limit spring 510. With continued reference to fig. 19 and 20, the mounting groove 323, the first limiting groove 324 and the second limiting groove 325 according to the embodiment of the present application penetrate through the surface of the connecting block 320 along the axis of the second limiting hole 322. In this way, the limiting spring piece 510 can be installed in the installation groove 323 by the surface of the connecting block 320, that is, the first elastic section 511 and the second elastic section 512 are installed in the installation groove 323, the first extension section 513 is installed in the first limiting groove 324, and the second extension section 514 is installed in the second limiting groove 325, so that the installation difficulty of the limiting spring piece 510 can be reduced.

In other embodiments, the limiting spring 510 is disposed at each of the second end 210b and the fourth end 322b of the second limiting hole 322. And, two inner walls of the second limiting hole 322 opposite to and parallel to the extending direction of the second limiting hole 322 are respectively provided with a limiting elastic sheet 510. Illustratively, one limiting elastic piece 510 is disposed at the second end 210b and the fourth end 322b of the second limiting hole 322, and two limiting elastic pieces 510 are disposed on the inner walls of the same side of the second limiting hole 322, or two limiting elastic pieces 510 are disposed on the two inner walls of the second limiting hole 322.

Alternatively, referring to fig. 21, fig. 21 is an assembly diagram of another second limiting hole 322 and a limiting spring 510 on a connection block 320 according to an embodiment of the present application. Four limiting elastic pieces 510 may be disposed in the second limiting hole 322, that is, the second end 210b and the fourth end 322b are both provided with two limiting elastic pieces 510, and are respectively located on two inner walls of the second limiting hole 322 that are relatively disposed. In this way, when the stop lever 410 is located at the end of the second stop hole 322, the stop lever 410 is limited by the two stop spring pieces 510, so that the stop lever 410 is stressed and balanced, which is beneficial to improving the reliability of limiting the stop lever 410.

In addition, under the condition that the limiting elastic piece 510 is arranged in the second limiting hole 322, the limiting elastic piece 510 can be arranged in the two second limiting holes 322 formed in the connecting block 320, so that the stress balance of the limiting rod 410 is ensured in a further step, and the reliability of the whole structure is improved.

It should be noted that, when the limiting elastic pieces 510 are disposed in the first limiting hole 210, the specific connection structure, the number of disposed limiting elastic pieces and the disposed positions thereof are the same as those of the limiting elastic pieces 510 disposed in the second limiting hole 322, and thus, the description thereof will not be repeated.

In some possible embodiments, referring to fig. 22, fig. 22 is a schematic diagram of another limiting portion 500 according to the embodiment, the limiting portion 500 may be a limiting protrusion 520, the limiting protrusion 520 is formed on an inner wall of the second limiting hole 322, and the limiting protrusion 520 may be used to effectively limit the limiting rod 410. In addition, the two inner walls of the second limiting hole 322 may be formed with limiting protrusions 520.

The limiting protrusion 520 may be provided only on one side inner wall of the second limiting hole 322, or may be provided on both side inner walls of the second limiting hole 322. Accordingly, the present application is not particularly limited thereto.

Alternatively, referring to fig. 23, fig. 23 is a block diagram of still another limiting portion 500 provided in this embodiment, two ends of the second limiting hole 322 may be bent and extended to form the limiting portion 500, that is, the second end 210b and the fourth end 322b of the second limiting hole 322 are bent towards one side of the extending direction of the second limiting hole 322 to form the limiting portion 500, when the limiting rod 410 moves to the end of the second limiting hole 322, the limiting rod 410 moves to the bent and extended second end 210b or the fourth end 322b, that is, when the limiting rod 410 moves to the end of the second limiting hole 322 or is separated from the end of the second limiting hole 322, the moving direction of the limiting rod 410 needs to be changed, so that effective limiting can be formed on the limiting rod 410.

On this basis, in the rotating shaft mechanism 23 provided in the embodiment of the present application, the swing arms 200 located at both sides (along the X-axis direction) of the center sill 100 may be symmetrically distributed, or may be distributed with a dislocation. Only one swing arm 200 may be provided between the door panel 300 and the center sill 100, or a plurality of swing arms 200 may be provided along the Y-axis direction.

In some embodiments, among the plurality of swing arms 200 disposed between the door panel 300 and the center sill 100, the stop lever 410 may be disposed between each swing arm 200 and the door panel 300 to achieve sliding stop between the door panel 300 and the swing arm 200. Alternatively, the above-mentioned limiting rod 410 may be disposed between a portion of the swing arm 200 and the door panel 300, and still achieve sliding limitation between the door panel 300 and the swing arm 200. Therefore, the present application is not particularly limited thereto.

In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.

The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A spindle mechanism, comprising:

a center sill;

the swing arm is rotationally connected with the middle beam; the swing arm is provided with a first limiting hole;

the door plate is provided with a sliding groove, and one end of the swing arm, which is far away from the middle beam, is inserted into the sliding groove and is in sliding connection with the door plate; the inner wall of the sliding chute is provided with a second limiting hole, and the axes of the first limiting hole and the second limiting hole are arranged along the stacking direction of the door plate and the swing arm and respectively penetrate through the swing arm and the door plate; the first limiting hole and the second limiting hole extend along the direction perpendicular to the stacking direction of the door plate and the swing arm, and the extending direction of the first limiting hole, the extending direction of the second limiting hole and the extending direction of the sliding groove are intersected in pairs;

the limiting piece sequentially penetrates through the first limiting hole and the second limiting hole;

the door plate slides relatively with the swing arm in the process of rotating along with the swing arm, the limiting piece slides along the extending direction of the first limiting hole relative to the swing arm, and the limiting piece slides along the extending direction of the second limiting hole relative to the door plate.

2. The pivot mechanism of claim 1 wherein the swing arm is capable of rotating the door panel relative to the center sill between a first position and a second position; the first limiting hole is provided with a first end part and a second end part along the extending direction, and the second limiting hole is provided with a third end part and a fourth end part along the extending direction;

when the swing arm and the door plate are positioned at the first position, on a plane parallel to the extending direction of the first limiting hole and the extending direction of the second limiting hole, the vertical projections of the first end part and the third end part are mutually overlapped, and the limiting piece sequentially passes through the first end part and the third end part;

and under the condition that the swing arm and the door plate are positioned at the second position, on a plane parallel to the extending direction of the first limiting hole and the extending direction of the second limiting hole, the vertical projections of the second end part and the fourth end part are mutually overlapped, and the limiting piece sequentially passes through the second end part and the fourth end part.

3. The rotary shaft mechanism according to claim 1, further comprising a limiting portion provided in at least one of the first limiting hole and the second limiting hole, wherein the limiting portion is abutted to the limiting member in a case where the limiting member is located at an end portion of one end of the limiting hole, and the limiting portion is capable of limiting movement of the limiting member toward the other end of the limiting hole.

4. A spindle mechanism according to claim 3, wherein both end portions of the limiting hole in the extending direction are provided with the limiting portion.

5. The spindle assembly of claim 4 wherein said spacing portions are provided on both inner walls of said spacing holes opposite and parallel to the direction of extension of said spacing holes.

6. A spindle mechanism according to claim 3, wherein the limit portion comprises a limit spring disposed on an inner wall of the limit hole.

7. The rotating shaft mechanism according to claim 6, wherein a mounting groove is formed in the inner wall of the limiting hole, the limiting elastic piece is abutted in the mounting groove, and a partial area of the limiting elastic piece extends out of the mounting groove.

8. The rotating shaft mechanism according to claim 7, wherein the limiting elastic piece comprises a first elastic section and a second elastic section, one end of the first elastic section and one end of the second elastic section, which are connected, extend out of the mounting groove, and free ends of the first elastic section and the second elastic section are respectively abutted against two opposite inner walls in the mounting groove.

9. The spindle mechanism according to claim 8, wherein the limit spring further comprises a first extension segment disposed at an end of the first elastic segment remote from the second elastic segment; a first limiting groove is formed in the inner wall, which is in butt joint with the first elastic section, of the mounting groove, and the first extension section is inserted into the first limiting groove.

10. The spindle mechanism of claim 9, wherein the limit spring further comprises a second extension segment disposed at an end of the second elastic segment remote from the second elastic segment; and a second limiting groove is formed in the inner wall of the mounting groove, which is abutted to the second elastic section, and the second extension section is inserted into the second limiting groove.

11. The pivot mechanism of claim 7 wherein the mounting slot extends along the axis of the spacing hole and through a surface of the door panel or the swing arm.

12. A spindle mechanism according to claim 3, wherein the limit portion includes a limit projection formed on an inner wall of the limit hole.

13. A spindle mechanism according to claim 3, wherein the end of the limiting aperture is bent to form the limiting portion.

14. The rotating shaft mechanism according to any one of claims 1 to 13, wherein the door plate comprises a plate body and a connecting block, the connecting block is fixed on the plate body, the connecting block is arranged on one side of the swing arm away from the center sill, the sliding groove is formed in the surface of the connecting block, which faces the center sill, and the second limiting hole is formed in the connecting block.

15. The spindle mechanism of claim 14, wherein the second limiting holes are formed in two inner walls of the chute opposite to each other along the stacking direction of the swing arm and the connection block, and the limiting member passes through the first limiting hole and the two second limiting holes.

16. The spindle mechanism of any one of claims 1 to 13, wherein the stop member includes a stop lever, the stop lever being parallel to an axis of the first stop hole.

17. The supporting device is characterized by comprising a first shell, a second shell and the rotating shaft mechanism according to any one of claims 1-16, wherein the rotating shaft mechanism is located between the first shell and the second shell, swing arms and door plates are arranged on two sides of a middle beam of the rotating shaft mechanism along the length direction, the first shell is connected with the door plate on one side of the middle beam, and the second shell is connected with the door plate on the other side of the middle beam.

18. A folding screen terminal, comprising:

a folding screen comprising a first portion, a second portion, and a third portion, the third portion being located between the first portion and the second portion;

the support device according to claim 17, wherein the first portion is fixed to the first housing, the second portion is fixed to the second housing, and the third portion is supported on the rotating shaft mechanism.