CN118188692A - Rotating mechanism, supporting device and folding screen terminal - Google Patents

Abstract

The application provides a rotating mechanism, a supporting device and a folding screen terminal, and relates to the technical field of electronic equipment. The folding screen is used for solving the problem that the folding screen is invalid due to the fact that the shaft cover is impacted to deform to cause the screen to be propped up. The rotating mechanism comprises a shaft cover, a first door plate, a second door plate, a plurality of first swing arms and a plurality of second swing arms. The first door panel and the second door panel are rotatable relative to the shaft cover. The plurality of first swing arms are rotatably arranged on the shaft cover and distributed along the length direction of the shaft cover; the first swing arm is used for driving the first door plate to rotate. The plurality of second swing arms are rotatably arranged on the shaft cover and distributed along the length direction of the shaft cover; the second swing arm is used for driving the second door panel to rotate; and the rotation direction of the second swing arm is opposite to that of the first swing arm. The first swing arm comprises a rotating arm and a supporting rib; the rotating arm is rotatably arranged on the shaft cover; the support rib is fixedly connected with the rotating arm and fixedly connected with the first door plate; two adjacent supporting ribs are mutually spliced through a splicing structure.

Description

Rotating mechanism, supporting device and folding screen terminal

Technical Field

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

Background

Along with the progress of science and technology, the large-screen intelligent terminal era comes, and in order to solve the problems that a traditional tablet personal computer is large in size, inconvenient to carry and small in screen of a straight-panel mobile phone, a folding-screen terminal is generated.

When the terminal is unfolded, the folding screen is unfolded to display a large screen. When the terminal is folded, the folding screen is folded and hidden, and is displayed by the outer screen. However, when the terminal is folded, the shaft cover of the terminal rotating mechanism is exposed, and when the shaft cover is impacted, the shaft cover is deformed, so that the problem of top screen is caused, and the failure of the folding screen is possibly caused.

Disclosure of Invention

The embodiment of the application provides a rotating mechanism, a supporting device and a folding screen terminal, which are used for solving the problem that when the folding screen terminal is folded, a shaft cover is impacted to deform, so that a screen is propped up, and the screen is invalid.

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

In a first aspect, a rotating mechanism is provided that includes a shaft cover, a first door panel, a second door panel, a plurality of first swing arms, and a plurality of second swing arms. The width direction of the shaft cover is the first direction, and the length direction of the shaft cover is the second direction. The first door panel is rotatable relative to the shaft cover. The second door panel can rotate relative to the shaft cover, and the first door panel and the second door panel are distributed along a first direction. The plurality of first swing arms are rotatably arranged on the shaft cover and distributed along the second direction; the first swing arm is used for driving the first door plate to rotate. The plurality of second swing arms are rotatably arranged on the shaft cover and distributed along a second direction; the second swing arm is used for driving the second door panel to rotate; and the rotation direction of the second swing arm is opposite to that of the first swing arm. The first swing arm comprises a rotating arm and a supporting rib; the rotating arm is rotatably arranged on the shaft cover; the support rib is fixedly connected with the rotating arm and fixedly connected with the first door plate; two adjacent supporting ribs are mutually spliced through a splicing structure.

According to the rotating mechanism provided by the first aspect of the application, the first swing arm and the second swing arm reversely rotate to drive the first door plate and the second door plate to rotate between the folding position and the unfolding position. Because the supporting ribs of the two adjacent first swing arms are mutually spliced through the splicing structure, no interval exists between the two adjacent supporting ribs. Therefore, the support ribs of the first swing arms can form support at any position of the shaft cover in the length direction, and when the shaft cover is impacted at any position along the length direction, the support ribs can form effective support to avoid the top screen of the shaft cover, so that the screen is ensured to be intact.

The plurality of support ribs are mutually independent parts, and two adjacent support ribs are mutually spliced through the splicing structure, so that a continuous support structure can be formed along the length direction of the shaft cover on one hand; on the other hand is favorable to promoting holistic support intensity, avoids the supporting rib to lead to can not forming the condition that effectively supports because of supporting intensity is not enough.

In some embodiments of the first aspect of the present application, along the second direction, the partial areas of the end portions of the two adjacent support ribs overlap each other, and the plugging structure is disposed between the surfaces of the two adjacent support ribs that are opposite to each other and parallel to the second direction. Therefore, the splicing structure is arranged between the overlapping areas of the two adjacent supporting ribs, which is beneficial to increasing the connection area between the two adjacent supporting ribs, thereby improving the supporting strength between the two adjacent supporting ribs.

In some embodiments of the first aspect of the present application, the end portions of two adjacent support ribs are provided with step structures, the step surfaces of the two step structures are mutually attached, and the plugging structure is arranged between the two step surfaces parallel to the second direction on the two step structures. Through set up step structure at two brace rod tip, can be in increasing the connecting area between the two, when promoting support strength, can not increase the size of brace rod thickness direction to can not increase the thickness at terminal, be favorable to overall structure frivolous.

In some embodiments of the first aspect of the present application, the two adjacent support ribs include a first support rib and a second support rib, the inserting structure includes a protrusion and a groove, the protrusion is disposed on a surface of the first support rib facing the second support rib and parallel to the second direction, the groove is disposed on a surface of the second support rib facing the first support rib and parallel to the second direction, and the protrusion is inserted into the groove. In this way, the protrusion is inserted into the groove, so that the contact area between the first support rib and the second support rib is increased, and the support strength between the first support rib and the second support rib is improved.

In some embodiments of the first aspect of the present application, the groove extends in the second direction and penetrates the end face of the second support rib toward the first support rib, and the protrusion is inserted into the groove from the end face of the second support rib. Therefore, the first supporting ribs and the second supporting ribs can be mutually spliced along the second direction, so that the installation and positioning between the first supporting ribs and the second supporting ribs are facilitated, and the installation difficulty is reduced.

In some embodiments of the first aspect of the present application, in a cross section perpendicular to the second direction, a notch width of the groove is larger than a groove bottom width of the groove, and a cross section shape of the protrusion is adapted to a cross section shape of the groove. Under this structure, can follow the direction of perpendicular to the second direction, peg graft first brace rod and second brace rod each other and form spacingly to avoid the two to follow the direction of perpendicular to the second direction and upwards separate.

In some embodiments of the first aspect of the present application, the protrusions and the grooves have a trapezoid shape in a cross-section perpendicular to the second direction. Namely, the notch on the cross section of the groove is a short side of a trapezoid, and the groove bottom is not a long side of the trapezoid, so that the protrusion can be prevented from being separated from the groove along the direction perpendicular to the second direction from the notch of the groove, namely, the limit is formed through a trapezoid structure.

In some embodiments of the first aspect of the present application, the protrusion includes a first protrusion and a second protrusion, the first protrusion is disposed on the first support rib, and the second protrusion is disposed at an end of the first protrusion away from the first support rib; the width of the second protrusion is greater than the width of the first protrusion in a section perpendicular to the second direction. That is, the second protruding portion abuts against the inside of the groove to form a limit in a direction perpendicular to the second direction, so that the protrusion is prevented from being separated from the notch of the groove.

In some embodiments of the first aspect of the present application, the two adjacent support ribs include a first support rib and a second support rib, the plugging structure includes a limiting hole and a limiting post, the limiting hole is formed on a surface of the first support rib facing the second support rib and parallel to the second direction, the limiting post is disposed on a surface of the second support rib facing the first support rib and parallel to the second direction, and the limiting post is inserted into the limiting hole. Therefore, the limiting columns are inserted into the limiting holes, so that the contact area between the first supporting ribs and the second supporting ribs is increased, and the supporting strength between the first supporting ribs and the second supporting ribs is improved.

In some embodiments of the first aspect of the present application, the plurality of limiting posts and the plurality of limiting holes are provided in plural, and the plurality of limiting posts and the plurality of limiting holes are distributed along the second direction. Through a plurality of spacing posts and a plurality of spacing hole one-to-one grafting, be favorable to further promoting support strength.

In some embodiments of the first aspect of the present application, the cross-sections of the spacing posts and the spacing holes are circular, elliptical, or polygonal.

In some embodiments of the first aspect of the present application, the plugging structure includes a connection board and a slot, and the connection board is disposed between two adjacent support ribs. The slot is arranged on the end face of the supporting rib, which faces the connecting plate, and the end part of the connecting plate is inserted into the slot; or the slot is arranged on the end face of the connecting plate facing the supporting rib, and the end part of the supporting rib is inserted into the slot. In this way, two adjacent support ribs are connected through the connecting plate, namely the connecting plate is used for forming a support at the interval between the two adjacent support ribs, so that the problem of top screen is avoided.

In some embodiments of the first aspect of the application, the slot extends in a direction perpendicular to the second direction and extends through a sidewall of the brace or the web. Therefore, the supporting ribs and the connecting plates can be mutually spliced along the extending direction of the slots, so that the positioning accuracy between the supporting ribs and the connecting plates is improved, and the mounting difficulty is reduced.

In some embodiments of the first aspect of the present application, in a cross section perpendicular to the extending direction of the slot, the slot bottom width of the slot is larger than the slot opening width of the slot, and the cross section shape of the end portion of the support rib or the connection plate is adapted to the cross section shape of the slot. Under this structure, can form spacing between connecting plate and supporting rib to avoid connecting plate and supporting rib to follow the second direction mutual separation.

In some embodiments of the first aspect of the present application, the second swing arm and the first swing arm have the same structure, and the supporting ribs of two adjacent second swing arms are mutually spliced by a splicing structure. Therefore, when the terminal is in a folded state, the first swing arm and the second swing arm can form effective support, so that the whole stress is more balanced, and the whole support strength is further improved.

In a second aspect, a rotating mechanism is provided that includes a shaft cover, a first door panel, a second door panel, a plurality of first swing arms, and a plurality of second swing arms. The width direction of the shaft cover is the first direction, and the length direction of the shaft cover is the second direction. The first door panel is rotatable relative to the shaft cover. The second door panel can rotate relative to the shaft cover, and the first door panel and the second door panel are distributed along a first direction. The plurality of first swing arms are rotatably arranged on the shaft cover and distributed along the second direction, and the first swing arms are used for driving the first door plate to rotate. The plurality of second swing arms are rotatably arranged on the shaft cover and distributed along a second direction, and the second swing arms are used for driving the second door panel to rotate; and the rotation direction of the second swing arm is opposite to that of the first swing arm. The first swing arm comprises a rotating arm, a supporting rib and a fastener, and the rotating arm is rotatably arranged on the shaft cover. The support rib is fixedly connected with the rotating arm, the support rib is fixedly connected with the first door plate, and two adjacent support ribs are mutually abutted. The fastener is used for connecting two adjacent support bars.

According to the rotating mechanism provided by the second aspect of the application, the two adjacent support ribs are mutually abutted, so that the interval between the two adjacent support ribs is avoided. And moreover, the adjacent two support ribs are locked by the fastener, so that the support strength of the mutual abutting part of the adjacent support ribs is improved. Therefore, when the shaft cover is impacted, the shaft cover can be supported by the supporting ribs, so that the condition that the shaft cover is used for pushing the screen is avoided, and the screen is protected to be intact.

In some embodiments of the second aspect of the present application, in the second direction, the partial areas of the adjacent ends between the adjacent two support ribs overlap each other, and the fastener sequentially penetrates the overlapping portions of the adjacent two support ribs and locks the two support ribs. Therefore, the end parts of the two adjacent supporting ribs are provided with partial overlapping areas, which is beneficial to increasing the abutting area between the two adjacent supporting ribs, and the two adjacent supporting ribs are locked by the locking piece, so that the connecting strength between the two adjacent supporting ribs can be improved, and the supporting strength of the supporting ribs is further improved.

In some embodiments of the second aspect of the present application, the two adjacent supporting ribs include a first supporting rib and a second supporting rib, a connecting block is disposed on an end surface of the first supporting agent facing the second supporting rib, a containing groove is disposed on an end surface of the second supporting rib facing the first supporting rib, the connecting block is inserted into the containing groove, and the fastening piece sequentially penetrates through the connecting block and a region of the second supporting rib corresponding to the containing groove, and locks the connecting block and the second supporting rib on the first supporting rib. Therefore, through setting up connecting block and holding tank and pegging graft each other, can not increase a plurality of supporting ribs along thickness direction's size when locking first supporting rib and supporting rib to be favorable to whole frivolous of terminal.

In some embodiments of the second aspect of the present application, the connecting block and the second support rib are provided with threaded holes in the areas provided with the receiving grooves, and the fastener includes a screw inserted into the threaded holes and engaged with the threaded holes. Therefore, the first supporting rib and the second supporting rib are locked through the screw rod, so that the fixed connection between the first supporting rib and the second supporting rib is realized, and the connection strength between the first supporting rib and the second supporting rib is improved.

In some embodiments of the second aspect of the present application, the second swing arms have the same structure as the first swing arm, and the support ribs of two adjacent second swing arms are abutted against each other and locked by the locking member. Therefore, when the terminal is in a folded state, the first swing arm and the second swing arm can form effective support, so that the whole stress is more balanced, and the whole support strength is further improved.

In a third aspect, a supporting device is provided, where the supporting device includes a first housing, a second housing, and a rotating mechanism according to any one of the above technical solutions, the rotating mechanism is located between the first housing and the second housing, a first door panel of the rotating mechanism is connected with the first housing, and a second door panel of the rotating mechanism is connected with the second housing.

The supporting device provided by the third aspect of the application comprises the rotating mechanism provided by any one of the above technical schemes. Therefore, the same technical problems can be solved and the same technical effects can be obtained.

In a fourth 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 above 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 mechanism.

The folding screen terminal provided by the fourth aspect of the application comprises the supporting device provided by the technical scheme. Therefore, the same technical problems can be solved and the same technical effects can be obtained.

Drawings

FIG. 1 is a block diagram of a folding screen terminal provided in some embodiments of the present application;

FIG. 2 is a block diagram of a support device of the folding screen terminal provided in FIG. 1;

FIG. 3 is a front view of the folding screen terminal provided in FIG. 1;

FIG. 4 is a front view of the folding screen terminal provided in FIG. 1 in a folded position;

FIG. 5 is a front view of a rotary mechanism according to an embodiment of the present application;

fig. 6 is a front view of a rotating mechanism 203 provided in the related art;

FIG. 7 is a block diagram of the support bar and the rotating arm of the rotating mechanism provided in FIG. 6;

FIG. 8 is a block diagram of two adjacent support ribs according to an embodiment of the present application;

FIG. 9 is an enlarged view of a portion of the structure of the support bar provided in FIG. 8;

FIG. 10 is a cross-sectional view of the mating structure provided in FIG. 9;

FIG. 11 is a cross-sectional view of another protrusion and recess provided by an embodiment of the present application;

FIG. 12 is a cross-sectional view of yet another projection and recess provided by an embodiment of the present application;

FIG. 13 is a block diagram of another plug structure according to an embodiment of the present application;

FIG. 14 is a front view of the mating structure provided in FIG. 13;

FIG. 15 is a schematic view of another structure of the plugging structure provided in FIG. 13;

FIG. 16 is a block diagram of yet another plug structure according to an embodiment of the present application;

FIG. 17 is a schematic view of an improved plug structure provided in FIG. 16;

FIG. 18 is an enlarged view of a portion of the mating structure provided in FIG. 17;

FIG. 19 is a block diagram of a fixed connection between two adjacent support bars by a fastener according to an embodiment of the present disclosure;

fig. 20 is a partial block diagram of the fastener of fig. 19 coupled to two adjacent support bars.

Reference numerals: 01-a folding screen terminal; 10-folding screen; 110-a first part; 120-a second part; 130-a third part; 20-supporting means; 201-a first housing; 202-a second housing; 203-a rotating mechanism; 200-shaft cover; 300-a first door panel; 400-a first swing arm; 410-a rotating arm; 420-supporting ribs; 421-first support bar; 421 a-a first region; 4211-a first step surface; 422-second support bars; 422 a-a second region; 4221-a second step surface; 500-plug-in structure; 510-bump; 511-a first protrusion; 512-second protrusions; 520-groove; 530-a limit column; 540-limiting holes; 550-connecting plates; 551-limit boss; 560-slots; 561-limit groove; 600-fasteners; 610-connecting blocks; 620-a receiving slot; 630-threaded holes.

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 present application provides a folding screen terminal, which may be a type of electronic device having a folding screen. The embodiment is described with respect to a folding screen terminal as a mobile phone as shown in fig. 1. Referring specifically to fig. 1, fig. 1 is a block diagram of a folding screen terminal 01 according to some embodiments of the present application, where the folding screen terminal 01 includes a folding screen 10 and a supporting device 20.

For the description of the embodiments hereinafter, an XYZ coordinate system is established, defining the width direction of the folding screen terminal 01 as the X-axis direction, the length direction of the folding screen terminal 01 as the Y-axis direction, and the thickness direction of the folding screen terminal 01 as the Z-axis direction. It will be appreciated that the coordinate system of the folding screen terminal 01 can 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 is used for displaying images, video screens, etc. The folding screen 10 includes a first portion 110, a second portion 120, and a third portion 130, the third portion 130 being disposed between the first portion 110 and the second portion 120. When the folding screen 10 is folded, the third portion 130 is folded and the first portion 110 and the second portion 120 are disposed opposite each other. At least the third portion 130 of the folding screen 10 is made of a flexible material. The first portion 110 and the second portion 120 may be made of a flexible material, may be made of a rigid material, and may be made of a flexible material and a rigid material. The present application is not particularly limited thereto.

The folding screen 10 may be an organic light-emitting diode (OLED) screen, a micro organic light-emitting diode (micro organic light-emitting diode) screen, a quantum dot LIGHT EMITTING diode (QLED), a liquid crystal display (liquid CRYSTAL DISPLAY, LCD), or the like.

Referring to fig. 2 and 3, fig. 2 is a structural view of a supporting device 20 of the folding screen terminal 01 provided in fig. 1, and fig. 3 is a front view of the folding screen terminal 01 provided in fig. 1. The folding screen 10 is supported on a support device 20. The support device 20 includes a first housing 201, a second housing 202, and a rotation mechanism 203, the rotation mechanism 203 being connected between the first housing 201 and the second housing 202. The first portion 110 of the folding screen 10 is supported and attached to the first housing 201. The second portion 120 of the folding screen 10 supports and fits over the second housing 202. The third portion 130 of the folding screen 10 is supported and attached to the rotating mechanism 203. The first housing 201 and the second housing 202 are rotatably coupled by a rotation mechanism 203 so that the folding screen terminal 01 can be rotated between an unfolded position and a folded position.

With continued reference to fig. 1-3, fig. 1-3 show structural views of the folding screen terminal 01 or support apparatus 20 in an unfolded position. When the folding screen terminal 01 is in the unfolded position, the first housing 201, the second housing 202, and the surface of the rotation mechanism 203 of the supporting device 20 facing the folding screen 10 are in the same plane, so that the folding screen 10 is fully unfolded, and the flatness of the folding screen 10 can be ensured. In this state, can realize the large-scale display, can bring better use experience for the user.

Referring to fig. 4, fig. 4 is a front view of the folding screen terminal 01 provided in fig. 1 in a folded position. When the folding screen terminal 01 is in the folded position, the first portion 110 is opposite to the second portion 120, the third portion 130 is in a folded state, the supporting device 20 is protected outside the folding screen 10, and the folding screen 10 is invisible to a user, so that the folding screen 10 is prevented from being scratched or damaged, and the folding screen 10 can be effectively protected.

Referring to fig. 5, fig. 5 is a front view of a rotating mechanism 203 according to an embodiment of the present application, where the rotating mechanism 203 may include a shaft cover 200, a first door panel 300, a second door panel, a first swing arm 400, and a second swing arm. Wherein, the first door panel 300 and the first swing arm 400 have the same structure as the second door panel and the second swing arm. Accordingly, only the related structures of the first door panel 300 and the first swing arm 400 are illustrated in fig. 5 and the related drawings below. In addition, the shaft cover 200 is an appearance piece, and when the folding screen terminal 01 is in the folded position, the shaft cover 200 is exposed to the outside, so that other parts are prevented from being exposed, and the whole appearance is facilitated.

The first door panel 300 and the second door panel are disposed between the first housing 201 and the second housing 202, that is, the first door panel 300 and the second door panel are distributed along the X direction, and the first door panel 300 is fixedly connected with the first housing 201, and the second door panel is fixedly connected with the second housing 202, so as to realize that the first door panel 300 and the second door panel drive the first housing 201 and the second housing 202 to rotate between the folded position and the unfolded position.

The first swing arm 400 and the second swing arm are both disposed between the first door panel 300 and the second door panel, that is, the first swing arm 400 and the second swing arm are distributed along the X direction, and the first swing arm 400 is fixedly connected with the first door panel 300, and the second swing arm is fixedly connected with the second door panel. In addition, the first swing arm 400 and the second swing arm are both rotatably connected with the shaft cover 200, and the rotation directions of the first swing arm 400 and the second swing arm are opposite, so that the folding screen terminal 01 can rotate between a folding position and an unfolding position.

With continued reference to fig. 5, the first swing arm 400 and the second swing arm are each provided with a plurality of swing arms along the length direction (i.e., the Y-axis direction) of the shaft cover 200, and are distributed at intervals, so as to form a multi-point support, which is beneficial to improving the support strength of the overall structure. Specifically, the first swing arm 400 may include a rotating arm 410 and a supporting rib 420, where the rotating arm 410 is fixedly connected with the supporting rib 420, and one end of the rotating arm 410 away from the supporting rib 420 is rotatably disposed on the shaft cover 200, so as to realize the rotational connection of the first swing arm 400 and the shaft cover 200, and the supporting rib 420 is fixedly connected with the first door panel 300, for example, the supporting rib 420 and the first door panel 300 may be fixedly connected by bolts, pins, or the like. In addition, the specific structure and connection manner of the second swing arm are the same as those of the first swing arm 400, and the description thereof will not be repeated.

In this way, through the plurality of first swing arms 400 and the plurality of second swing arms, the first door panel 300 and the second door panel can be driven to rotate reversely, and then the first housing 201 and the second housing 202 are driven to rotate reversely, so as to realize the rotation of the folding screen terminal 01 between the folded position and the unfolded position.

However, since the folder terminal 01 is in the folded position, the shaft cover 200 is exposed to the outside, and when the shaft cover 200 is impacted by an external force, it is deformed and is depressed inward. At this time, when the impact is applied to the space between the adjacent two first swing arms 400 and the second swing arms (i.e., the space between the adjacent two support ribs 420, as shown by the dashed line in fig. 5), the impact force may be transmitted to the folding screen 10 through the shaft cover 200, causing a top screen problem, and thus may cause the folding screen 10 to fail.

Therefore, in order to avoid the top-screen problem, referring to fig. 6 and 7, fig. 6 is a front view of the rotating mechanism 203 provided in the related art, and fig. 7 is a structural diagram of the support rib 420 and the rotating arm 410 of the rotating mechanism 203 provided in fig. 6. The related art provides a plurality of support ribs 420 distributed in the Y-axis direction as an integral structure, i.e., only one support rib 420 is provided in the Y-axis direction, and the length of the support rib 420 is adapted to the length of the first door panel 300, i.e., the length of the support rib 420 is equal to or slightly less than the length of the first door panel 300, and a plurality of the above-mentioned rotating arms 410 are provided on the support rib 420. In this way, since the supporting rib 420 forms a continuous structure, the above-mentioned interval space does not exist along the Y-axis direction, so that the deformation of the shaft cover 200 caused by the impact can be effectively prevented, and the top screen problem can be avoided.

It should be noted that, in this structure, the structures of the plurality of first swing arms 400 and the plurality of second swing arms may be the same, that is, the support ribs 420 of the plurality of first swing arms 400 and the support ribs 420 of the plurality of second swing arms are all provided as an integral structure. Or the structures of the plurality of first swing arms 400 and the plurality of second swing arms may be different, that is, the supporting ribs 420 of the plurality of first swing arms 400 may be set to an integral structure, and the plurality of second swing arms may still be distributed at intervals along the Y-axis direction. Therefore, the present application is not particularly limited thereto.

However, the support rib 420 has a too long length, which may result in a decrease in the support strength, and when the support strength of the support rib 420 decreases, the effectiveness of blocking the impact is reduced, that is, the support rib 420 is impacted by the shaft cover 200, and the support rib 420 itself is easily deformed, so that the impact cannot be effectively blocked. Meanwhile, in the processing process, when the support rib 420 with a larger processing length is processed, the straightness of the support rib 420 is reduced, so that the support of the folding screen 10 by the support rib 420 is affected, and the flatness of the folding screen 10 is reduced. Therefore, the workability of providing the plurality of support ribs 420 as a unitary structure is low.

In order to solve the above problems, the present application provides another rotating mechanism 203, and the rotating mechanism 203 may include the above-mentioned shaft cover 200, a first door panel 300, a second door panel, a plurality of first swing arms 400, and a plurality of second swing arms, and the first swing arms 400 may include the above-mentioned rotating arms 410 and supporting ribs 420. In addition, the supporting ribs 420 of the adjacent two first swing arms 400 may be connected to each other by a connection structure so as to avoid a space between the adjacent two supporting ribs 420.

For example, referring to fig. 8 and 9, fig. 8 is a block diagram of two adjacent support ribs 420 according to an embodiment of the present application, and fig. 9 is an enlarged view of a partial structure of the support ribs 420 according to fig. 8. The supporting ribs 420 of two adjacent first swing arms 400 can be mutually spliced through the splicing structure 500, so that two adjacent supporting ribs 420 can form a continuous supporting structure, and no interval space exists along the Y direction. Therefore, the support ribs 420 of the plurality of first swing arms 400 can form a support at any position in the length direction (Y direction) of the shaft cover 200, and when any position in the length direction (Y direction) of the shaft cover 200 is impacted, the support ribs 420 can form an effective support, so as to avoid deformation of the shaft cover 200 and cause top screen, thereby ensuring that the folding screen 10 is intact.

And, a plurality of supporting ribs 420 are mutually spliced through the splicing structure 500, namely, each supporting rib 420 is an independent component, the length of the supporting rib can be determined according to actual requirements, namely, the length of each supporting rib 420 can be determined according to the strength of the supporting rib, and the supporting rib is not required to be set too long, so that the supporting strength is reduced. Thus, an effective support can be formed.

In some embodiments, in the Y direction, the end portions of the two adjacent support ribs 420 may have partial areas overlapping each other, and the plugging structure 500 is disposed between the surfaces of the two adjacent support ribs 420 that are disposed opposite to each other and parallel to the Y direction. I.e., the plugging structure 500 is disposed between the regions where the adjacent two supporting ribs 420 overlap each other. The contact area between two adjacent support ribs 420 is increased by the partially overlapped area of the two adjacent support ribs 420, so that the connection strength of the mutually spliced areas between the two support ribs 420 can be improved, and the support strength of the adjacent areas between the two support ribs can be improved.

In addition, in order to avoid that the overlapping area of two adjacent supporting ribs 420 along the Y direction increases the thickness dimension (i.e. the Z direction dimension), the two adjacent supporting ribs 420 may be respectively disposed on the step structures, the step surfaces on the step structures of the two adjacent supporting ribs 420 are mutually attached, and the inserting structure 500 is disposed between the two step surfaces parallel to the Y direction on the two step structures.

For example, with continued reference to fig. 8 and 9, two adjacent support ribs 420 are a first support rib 421 and a second support rib 422, respectively, the area where the first support rib 421 overlaps the second support rib 422 is a first area 421a, and the area where the second support rib 422 overlaps the first support rib 421 is a second area 422a. The first region 421a has a first stepped structure formed on a surface facing the shaft cover 200, in which a stepped surface parallel to the Y direction is a first stepped surface 4211a, and a stepped surface perpendicular to the Y direction is a first stepped surface 4211b. The second region 422a has a second step structure formed on a surface thereof remote from the shaft cover 200, wherein a step surface parallel to the Y direction in the second step structure is a second step surface 4221a, and a step surface perpendicular to the Y direction is a second step surface 4221b.

When the first area 421a overlaps the second area 422a, that is, the first area 421a is located on the side of the second area 422a away from the shaft cover 200, the first step surface 4211a and the second step surface 4221a are attached to each other, and the plugging structure 500 is disposed between the first step surface 4211a and the second step surface 4221 a. In the Y direction, the first step surface 4211b abuts against the end surface of the second support rib 422, and the second step surface 4221b abuts against the end surface of the first support rib 421.

Therefore, the first step structure and the second step structure are matched with each other, so that the size of the first supporting rib 421 and the second supporting rib 422 along the Z-axis direction is not increased, i.e. the thickness of the terminal is not increased, and the thickness of the terminal is not increased, thereby being beneficial to lightening and thinning of the terminal.

Further, since the first step surface 4211b abuts against the end surface of the second support rib 422, that is, the gap between the first step surface 4211b and the end surface of the second support rib 422 in the Z direction is covered with the first step surface 4211a, the support strength at the gap therebetween can be compensated. Similarly, the second step surface 4221b abuts against the end surface of the first support rib 421, that is, the gap between the second step surface 4221b and the end surface of the first support rib 421 is covered by the second step surface 4221a in the Z direction, so that a person can compensate for the support strength at the gap therebetween. So that the supporting strength of the connection of the first supporting rib 421 and the second supporting rib 422 can be enhanced.

The first step surface 4211a and the second step surface 4221a may be parallel to the Y direction, that is, the first step surface 4211a and the second step surface 4221a may be parallel to the XY plane, may be parallel to the YZ plane, or may be an inclined plane forming an acute angle or an obtuse angle with the XY plane and the YZ plane, which is not particularly limited in the present application.

The specific structure of the plugging structure 500 will be described in detail below. Wherein, the two adjacent support ribs 420 include the first support rib 421 and the second support rib 422, the first support rib 421 is provided with the first step structure, and the second support rib 422 is provided with the second step structure.

In a possible example, with continued reference to fig. 8 and 9, the plugging structure 500 may include a protrusion 510 and a recess 520, where the protrusion 510 is disposed on the first step surface 4211a, the recess 520 is disposed on the second step surface 4221a, and the protrusion 510 is inserted into the recess 520. By inserting the protrusions 510 into the grooves 520, the contact area between the first and second supporting ribs 421 and 422 can be increased, thereby facilitating the improvement of the supporting strength.

To further increase the contact area between the protrusion 510 and the groove 520, the groove 520 and the protrusion 510 may extend in the Y direction, and the groove 520 penetrates the second supporting rib 422 toward the end surface of the first step surface 4211b, so that the protrusion 510 may be inserted into the groove 520 in the Y direction from the end surface of the second supporting rib 422, thereby further increasing the contact area between the first supporting rib 421 and the second supporting rib 422, and further improving the supporting strength of the connection area therebetween.

To prevent the first and second support ribs 421 and 422 from being separated from each other in the direction perpendicular to the Y direction, i.e., to prevent the first and second step surfaces 4211a and 4221a from being separated from each other. Referring to fig. 10, fig. 10 is a cross-sectional view of the plugging structure 500 provided in fig. 9, in which, on a cross-section perpendicular to the Y direction, a slot width D1 of the groove 520 is smaller than a slot bottom width D2 of the groove 520, and a cross-sectional shape of the protrusion 510 is adapted to the groove 520. In this way, the protrusion 510 can be prevented from coming out of the recess 520 in the direction perpendicular to the Y direction, that is, the first step surface 4211a and the second step surface 4221a can be separated in the direction away from each other.

It should be noted that, the shape of the cross section of the protrusion 510 is adapted to the shape of the cross section of the groove 520, that is, the shape of the protrusion 510 is the same as the shape of the groove 520 along the cross section perpendicular to the Y direction, and the size of the protrusion 510 is slightly smaller than the size of the groove 520, so that the protrusion 510 can be inserted into the groove 520.

Illustratively, with continued reference to FIG. 10, the cross-sectional shape of the protrusions 510 and recesses 520 may be trapezoidal in cross-section perpendicular to the Y-direction (i.e., cross-section parallel to the XZ-plane). Namely, the notch of the groove 520 is a short side of a trapezoid, and the bottom of the groove 520 is a long side of the trapezoid; accordingly, the edge of the protrusion 510 near the first step surface 4211a is a short side of a trapezoid, and the edge of the protrusion 510 far from the first step surface 4211a is a long side of a trapezoid, so that the notch of the protrusion 510 with the notch 520 cannot be separated from the notch 520, and a limit is formed between the first step surface 4211a and the second step surface 4221a, so as to avoid the first step surface 4211a and the second step surface 4221a from being separated from each other. It is understood that the trapezoid structure may be a right trapezoid, an isosceles trapezoid, a non-isosceles trapezoid, or the like. The present application is not particularly limited thereto.

Alternatively, referring to fig. 11, fig. 11 is a cross-sectional view of another protrusion 510 and recess 520 according to an embodiment of the present application. In a cross section perpendicular to the Y-direction (i.e., a cross section parallel to the XZ plane), the cross sectional shape of the protrusion 510 and the groove 520 may also be an approximately "T" shaped structure. Specifically, the protrusion 510 may include a first protrusion 511 and a second protrusion 512, the first protrusion 511 being disposed on the first step surface 4211a, the second protrusion 512 being fixed to a side of the first protrusion 511 away from the first step surface 4211 a; the width D3 of the first protrusion 511 is smaller than the width D4 of the second protrusion 512. I.e., the first protrusion 511 and the second protrusion 512 form an approximately "T" shaped structure, and the cross section of the groove 520 is adapted to the protrusion 510. Accordingly, when the protrusion 510 is inserted into the recess 520, the second protrusion 512 abuts against the inner wall of the recess 520, so that the first step surface 4211a and the second step surface 4221a can be prevented from moving in the direction away from each other.

As can be seen, the limitation is formed between the first step surface 4211a and the second step surface 4221b, and the support strength of the connection region between the first support rib 421 and the second support rib 422 can be further improved. Specifically, when the shaft cover 200 shown in fig. 5 and 6 is impacted by an external force and the impact force is located in the overlapping area between the first supporting rib 421 and the second supporting rib 422 shown in fig. 8, the impact force is firstly transmitted to the second area 422a of the second supporting rib 422 through the shaft cover 200, the external force causes the second area 422a of the second supporting rib 422 to deform, and when the external force is transmitted to the first area 421a of the first supporting rib 421, the first area 421a of the first supporting rib 421 moves in a direction away from the second area 422a of the second supporting rib 422. At this time, the external force is completely received by the second region 422a of the second support rib 422.

When the first step surface 4211a and the second step surface 4221a form a limit, the external force is transferred to the first region 421a of the first supporting rib 421, and the first region 421a of the first supporting rib 421 cannot move in a direction away from the second region 422a of the second supporting rib 422 due to the limit function of the protrusion 510 and the groove 520. At this time, the external force is commonly received by the first region 421a of the first supporting rib 421 and the second region 422a of the second supporting rib 422, and thus the possibility that the external force is transmitted to the folding screen 10 can be reduced, that is, the supporting strength of the overlapping region between the first supporting rib 421 and the second supporting rib 422 is improved.

The first step surface 5211a and the second step surface 5221a are described above as being parallel to the XY plane. In addition, referring to fig. 12, fig. 12 is a cross-sectional view of a protrusion 510 and a recess 520 according to another embodiment of the present application. The first step surface 5211a and the second step surface 5221a can also be parallel to the YZ plane, i.e., perpendicular to the X direction. At this time, the protrusions 510 and the grooves 520 are arranged in the direction as shown in fig. 12, and thus, the description will not be repeated since the functions are the same as the above-described structure.

It is to be understood that the arrangement direction of the first step surface 5211a and the second step surface 5221a is merely an example and is not particularly limited. The specific arrangement of the first step surface 5211a and the second step surface 5221a can be flexibly changed according to actual requirements.

In another possible example, please refer to fig. 13 and 14, fig. 13 is a block diagram of another plugging structure 500 provided in an embodiment of the present application, and fig. 14 is a front view of the plugging structure 500 provided in fig. 13. The plugging structure 500 may include a limiting post 530 and a limiting hole 540, the limiting hole 540 is formed on a first step surface 4211a of the first supporting rib 421, the limiting post 530 is disposed on a second step surface 4221a of the second supporting rib 422, and axes of the limiting post 530 and the limiting hole 540 are perpendicular to the first step surface 4211a, and the limiting post 530 is inserted into the limiting hole 540. Namely, the connection area between the first and second supporting ribs 421 and 422 is increased by the limiting posts 530 and the limiting holes 540, thereby improving the supporting strength.

The number of the stopper posts 530 and the stopper holes 540 may be one or more. Illustratively, when the stopper post 530 and the stopper hole 540 are provided with only one, the areas of the cross-sections of the stopper post 530 and the stopper hole 540 may be provided with a larger size within the first stepped surface 4211 a. Or when the limiting posts 530 and the limiting holes 540 are provided in plurality, the limiting posts 530 and the limiting holes 540 are provided in one-to-one correspondence and distributed along the Y-axis direction.

It can be appreciated that referring to fig. 15, fig. 15 is a schematic diagram of another structure of the plugging structure 500 provided in fig. 13. The cross sections of the limiting posts 530 and the limiting holes 540 may be circular, elliptical, rectangular, square, diamond, regular polygon, irregular pattern, etc. The present application is not particularly limited thereto.

In yet another possible example, referring to fig. 16, fig. 16 is a block diagram of yet another plugging structure 500 according to an embodiment of the present application. The plugging structure 500 may include a connection plate 550, where the connection plate 550 is disposed between the supporting ribs 420 of two adjacent first swing arms 400, and two ends of the connection plate 550 are plugged with the two supporting ribs 420 respectively. Specifically, a slot 560 is formed on the end surface of the support rib 420 facing the connection plate 550, and the connection plate 550 is inserted into the slot 560; or the side wall of the connecting plate 550 facing the supporting rib 420 is provided with a slot 560, and the supporting rib 420 is inserted into the slot 560.

In this way, the connection plate 550 forms a support between the adjacent two support ribs 420 to compensate for the interval space between the adjacent two support ribs 420. When the shaft cover 200 is impacted by external force and the stress point is located between two adjacent supporting ribs 420, the connecting plate 550 can bear the external force, so that the condition that the shaft cover 200 is propped against a screen is avoided.

Specifically, the slot 560 may be formed on an end surface of the supporting rib 420 facing the connecting plate 550, and the connecting end is inserted into the slot 560. Also, the insertion groove 560 may extend in a direction perpendicular to the Y direction and penetrate through the sidewall of the support rib 420. For example, as shown in fig. 16, the slot 560 extends in a direction perpendicular to the Y direction and parallel to the X direction, and penetrates both side walls of the support rib 420 perpendicular to the X direction. In this way, on the one hand, the connection area between the connection plate 550 and the supporting rib 420 can be increased, so as to improve the supporting strength. On the other hand, the connecting plate 550 can be inserted into the slot 560 along the X direction, and when in production and installation, the supporting rib 420 can be fixed first, and then the connecting plate 550 is correspondingly inserted, so that the installation accuracy is improved, and the production efficiency is improved.

In addition, referring to fig. 17 and fig. 18, fig. 17 is a schematic diagram illustrating an improved structure of the plugging structure 500 provided in fig. 16, and fig. 18 is an enlarged view of a part of the plugging structure 500 provided in fig. 17. In order to prevent the connection plate 550 and the support rib 420 from being separated from each other in the Y direction, the width D5 of the slot 560 is smaller than the width D6 of the slot bottom of the slot 560 in a cross section perpendicular to the extending direction of the slot 560, i.e., in a cross section perpendicular to the X direction. The cross section of the end of the connection plate 550 inserted into the insertion groove 560 corresponds to the cross section of the insertion groove 560.

As an example, please continue to refer to fig. 17 and 18, the cross-sectional shape of the slot 560 may be an approximately "T" structure, i.e., two opposite side walls of the slot 560 are respectively provided with a limiting groove 561, two surfaces of the end of the connecting plate 550, which is opposite to the end of the connecting plate 550, are respectively provided with a limiting boss 551, when the connecting plate 550 is inserted into the slot 560, the limiting boss 551 is inserted into the limiting groove 561, so as to form a limit along the Y-axis direction, so as to avoid the separation of the supporting ribs 420 and the connecting plate 550 along the Y-direction, ensure that a continuous supporting structure can be formed by the plurality of supporting ribs 420 and the connecting plate 550 along the Y-direction, and avoid the occurrence of a space.

The above example is to insert two adjacent support ribs 420 with each other through the insertion structure 500, so as to form a continuous support structure along the Y direction. In addition, in the rotating mechanism 203 provided by the embodiment of the application, two adjacent supporting ribs 420 can be fixedly connected through the fastener 600, so that a continuous supporting structure is formed in the Y direction. Referring to fig. 19 and 20, fig. 19 is a structural diagram of a fixing connection between two adjacent support ribs 420 by a fastener 600 according to the embodiment of the application, and fig. 20 is a partial structural diagram of a connection between two adjacent support ribs 420 and a fastener 600 according to fig. 19.

Specifically, the support ribs 420 of the adjacent two first swing arms 400 abut against each other and are locked by the fastener 600. In this way, since the adjacent two support ribs 420 are abutted against each other, there is no space between the adjacent two support ribs 420. In addition, the fastener 600 can improve the supporting strength of the abutting part between two adjacent supporting ribs 420, so that a plurality of supporting ribs 420 form a continuous supporting structure along the Y direction, and the condition that the shaft cover 200 is propped against the screen is avoided.

For example, the fastener 600 may be a bolt, a screw, a pin, or the like, and the two ends of the fastener 600 are fixedly connected with two adjacent support ribs 420 that are abutted against each other, so that the two adjacent support ribs 420 are locked and fixed, thereby improving the support strength of the abutted parts of the two support ribs 420.

To further enhance the supporting strength of the adjacent two supporting ribs 420, the abutting area between the adjacent two supporting ribs 420 may be increased. That is, the partial areas of the adjacent two support ribs 420 are overlapped with each other in the Y-axis direction, and the fastening member 600 sequentially penetrates through the overlapping areas between the two support ribs 420, thereby improving the support strength between the adjacent two support ribs 420.

As an example, with continued reference to fig. 19 and 20, two adjacent support ribs 420 include a first support rib 421 and a second support rib 422, a connection block 610 is fixedly disposed on an end surface of the first support rib 421 facing the second support rib 422, and a receiving groove 620 is disposed on an end surface of the second support rib 422 facing the first support rib 421. The end surfaces of the first and second support ribs 421 and 422 abut against each other, and the connection block 610 is inserted into the receiving groove 620.

The fastening member 600 may be a screw, in which screw holes 630 are partially formed in the bottoms of the connection block 610 and the receiving groove 620, and the screw is sequentially inserted into the two screw holes 630 and is engaged with the screw holes 630 to lock the connection block 610 and the bottom surface of the receiving groove 620. Thus, the connection area between the first and second supporting ribs 421 and 422 is increased by inserting the connection block 610 into the receiving groove 620. Meanwhile, after the first support rib 421 and the second support rib 422 are locked by the screw, when the external force is impacted, the external force can be shared by the cooperation between the screw and the threaded hole 630 and the abutting structure between the connecting block 610 and the accommodating groove 620, so that the external force can be more effectively blocked, the external force is prevented from being transmitted to the screen, and the screen is ensured to be intact.

In some embodiments, the receiving groove 620 may extend perpendicular to the Y direction, for example, extend along the X direction and penetrate at least one of the two sidewalls of the second supporting rib 422, so as to increase the contact area between the connecting block 610 and the receiving groove 620, thereby further improving the supporting strength of the contact portion between the first supporting rib 421 and the second supporting rib 422.

The fastener 600 may be provided in only one or in a plurality of cases. For example, when the area of the overlapping region between the first support rib 421 and the second support rib 422 is large, that is, when the entire volume of the connection block 610 is large, a plurality of screw holes 630 may be formed in the connection block 610 and the bottom surface of the receiving groove 620, respectively. Simultaneously, a plurality of screws are arranged, and each screw is inserted into one threaded hole 630, so that the connection strength between the connecting block 610 and the bottom surface of the accommodating groove 620 is improved, and the support strength of the abutting position between the first support rib 421 and the second support rib 422 can be improved.

In summary, in the rotating mechanism 203 provided by the present application, the supporting ribs 420 of two adjacent first swing arms 400 are mutually inserted through the insertion structure 500, or the supporting ribs 420 of two adjacent first swing arms 400 are mutually abutted and locked by the fastener 600. Therefore, the support ribs 420 of the plurality of first swing arms 400 form a continuous support structure along the Y direction, and no space exists between two adjacent support ribs 420, so that the deformation of the shaft cover 200 caused by external force can be effectively prevented, the external force is prevented from being transmitted to the screen, and the screen is ensured to be intact.

On this basis, the overall support strength of the rotation mechanism 203 is further improved. In the rotating mechanism 203 provided by the embodiment of the present application, the plurality of second swing arms may have the same structure as the plurality of first swing arms 400, that is, the supporting ribs 420 of two adjacent second swing arms are also inserted into each other through the insertion structure 500, or the supporting ribs 420 of two adjacent second swing arms are abutted against each other and locked and fixed by the fastener 600. Since the specific structure is the same as the first swing arm 400, a repetitive description will not be made.

In this way, when the shaft cover 200 is deformed by external force impact, the support rib 420 of the first swing arm 400 and the support rib 420 of the second swing arm jointly block the deformation of the shaft cover 200, so that more effective support can be formed, the deformation is prevented from being transmitted to the screen, and the problem that the screen is propped up by the shaft cover 200 is caused, therefore, better protection can be formed on the screen.

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 (22)

1. A rotary mechanism, comprising:

The shaft cover is provided with a first shaft cover, and a second shaft cover is provided with a second shaft cover;

a first door panel rotatable relative to the shaft cover;

The second door plate can rotate relative to the shaft cover, and the first door plate and the second door plate are distributed along the first direction;

The plurality of first swing arms are rotatably arranged on the shaft cover and distributed along the second direction; the first swing arm is used for driving the first door plate to rotate;

the second swing arms are rotatably arranged on the shaft cover and distributed along the second direction; the second swing arm is used for driving the second door panel to rotate; the rotation direction of the second swing arm is opposite to that of the first swing arm;

wherein, first swing arm includes:

The rotating arm is rotatably arranged on the shaft cover;

the support rib is fixedly connected with the rotating arm and fixedly connected with the first door plate; two adjacent supporting ribs are mutually spliced through a splicing structure.

2. The rotating mechanism according to claim 1, wherein in the second direction, partial areas of the end portions of the adjacent two of the support ribs overlap each other, and the insertion structure is disposed between surfaces of the adjacent two of the support ribs which are disposed opposite to each other and parallel to the second direction.

3. The rotating mechanism according to claim 2, wherein the adjacent two ends of the supporting ribs are each provided with a step structure, step surfaces of the two step structures are mutually attached, and the insertion structure is arranged between two step surfaces parallel to the second direction on the two step structures.

4. A turning mechanism according to claim 2 or 3, wherein two adjacent support bars comprise a first support bar and a second support bar, the plug-in structure comprises a protrusion and a groove, the protrusion is arranged on the surface of the first support bar facing the second support bar and parallel to the second direction, the groove is arranged on the surface of the second support bar facing the first support bar and parallel to the second direction, and the protrusion is inserted into the groove.

5. The rotating mechanism according to claim 4, wherein the groove extends in the second direction and penetrates the second support rib toward the end face of the first support rib, and the projection is inserted into the groove from the end face of the second support rib.

6. The rotating mechanism according to claim 5, wherein a notch width of the groove is larger than a groove bottom width of the groove in a cross section perpendicular to the second direction, and a cross sectional shape of the projection is adapted to a cross sectional shape of the groove.

7. The rotating mechanism according to claim 6, wherein the projection and the recess have a trapezoidal cross-sectional shape in a direction perpendicular to the second direction.

8. The rotating mechanism according to claim 6, wherein the projection includes a first projection portion and a second projection portion, the first projection portion being provided on the first support rib, the second projection portion being provided at an end of the first projection portion remote from the first support rib; the width of the second protrusion is greater than the width of the first protrusion in a section perpendicular to the second direction.

9. A rotary mechanism according to claim 2 or 3, wherein two adjacent support ribs comprise a first support rib and a second support rib, the plug-in structure comprises a limit hole and a limit post, the limit hole is formed in a surface of the first support rib facing the second support rib and parallel to the second direction, the limit post is arranged on a surface of the second support rib facing the first support rib and parallel to the second direction, and the limit post is inserted into the limit hole.

10. The rotating mechanism according to claim 9, wherein a plurality of the stopper posts and the stopper holes are provided, and a plurality of the stopper posts and the stopper holes are distributed along the second direction.

11. The rotary mechanism of claim 9, wherein the cross-section of the stop post and the stop hole is circular, elliptical, or polygonal.

12. The rotating mechanism according to claim 1, wherein the plug structure comprises:

the connecting plates are arranged between two adjacent supporting ribs;

The slot is formed in the end face, facing the connecting plate, of the supporting rib, and the end part of the connecting plate is inserted into the slot; or the slot is arranged on the end face of the connecting plate, which faces the supporting rib, and the end part of the supporting rib is inserted into the slot.

13. The rotating mechanism according to claim 12, wherein the slot extends in a direction perpendicular to the second direction and extends through a side wall of the support rib or the connecting plate.

14. A turning mechanism according to claim 12 or 13, wherein the slot bottom width of the slot is larger than the slot width of the slot in a section perpendicular to the extending direction of the slot, and the section shape of the end portion of the support rib or the connection plate is adapted to the section shape of the slot.

15. The rotating mechanism according to any one of claims 1 to 14, wherein the second swing arm and the first swing arm have the same structure, and the support ribs of two adjacent second swing arms are connected to each other in an inserting manner through the connecting structure.

16. A rotary mechanism, comprising:

The shaft cover is provided with a first shaft cover, and a second shaft cover is provided with a second shaft cover;

a first door panel rotatable relative to the shaft cover;

The second door plate can rotate relative to the shaft cover, and the first door plate and the second door plate are distributed along the first direction;

the first swing arms are rotationally arranged on the shaft cover and distributed along the second direction, and the first swing arms are used for driving the first door plate to rotate;

the second swing arms are rotatably arranged on the shaft cover and distributed along the second direction; the second swing arm is used for driving the second door panel to rotate; the rotation direction of the second swing arm is opposite to that of the first swing arm;

wherein, first swing arm includes:

The rotating arm is rotatably arranged on the shaft cover;

The support ribs are fixedly connected with the rotating arms and fixedly connected with the first door plate, and two adjacent support ribs are mutually abutted;

and the fastener is used for locking two adjacent supporting ribs.

17. The rotating mechanism according to claim 16, wherein in the second direction, partial areas of the adjacent both end portions between the adjacent two of the support ribs overlap each other, and the fastener penetrates the overlapping portions of the adjacent two of the support ribs in turn and locks the two of the support ribs.

18. The rotating mechanism according to claim 17, wherein two adjacent support ribs include a first support rib and a second support rib, a connecting block is arranged on an end face of the first support rib facing the second support rib, a containing groove is arranged on an end face of the second support rib facing the first support rib, the connecting block is inserted into the containing groove, and the fastener sequentially penetrates through the connecting block and a region of the second support rib corresponding to the containing groove.

19. The rotating mechanism according to claim 18, wherein the connecting block and the second support rib are provided with threaded holes in areas provided with the receiving grooves, and the fastener comprises a screw inserted into the threaded holes and engaged with the threaded holes.

20. The rotating mechanism according to any one of claims 16 to 19, wherein the second swing arm and the first swing arm have the same structure, and the support ribs of two adjacent second swing arms are abutted against each other and locked by the locking member.

21. A support device comprising a first housing, a second housing, and a rotation mechanism according to any one of claims 1 to 20, wherein the rotation mechanism is located between the first housing and the second housing, a first door panel of the rotation mechanism is connected to the first housing, and a second door panel of the rotation mechanism is connected to the second housing.

22. 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 of claim 21, 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 mechanism.