Rotating mechanism and foldable electronic device

Abstract

The application provides a rotating mechanism and a foldable electronic device. The rotating mechanism comprises a fixed base, a synchronous swing arm, a first clamping piece, a first fixed plate and a second fixed plate. The synchronous swing arm comprises a first synchronous swing body and a second synchronous swing body. The first clamping piece is installed on the first fixed plate and opposite to the first synchronous swing body, and the first clamping piece is movable relative to the first fixed plate. The first fixed plate is folded relative to the second fixed plate, the first clamping piece abuts against the first synchronous swing body and generates an elastic force; the first fixed plate is unfolded relative to the second fixed plate, the elastic force of the first clamping piece is released to make the first clamping piece clamp the first synchronous swing body. The rotating mechanism provided by the application can solve the technical problem that the existing foldable electronic device is prone to over-unfolding and causes damage to the screen.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic products, and in particular to a rotating mechanism and a foldable electronic device. BACKGROUND

[0002] With the development of technology, the appearance (ID) form of electronic devices (such as mobile phones, tablet computers, etc.) has a trend from a straight phone to a folding phone. The folding phone has a large screen in the open state, fully meeting the visual experience of consumers, and has a small volume in the closed state, being convenient to carry. However, in the prior art, when the folding phone is rotated to an unfolded state, the user cannot obtain feedback, thereby causing over-unfolding and damaging the screen. SUMMARY

[0003] The present application provides a rotating mechanism and a foldable electronic device to solve the technical problem that the foldable electronic device in the prior art is prone to over-unfolding and damaging the screen.

[0004] In a first aspect, the present application provides a rotating mechanism, comprising a fixed base, a synchronous swing arm, a first clamping piece, a first fixed plate and a second fixed plate. The synchronous swing arm comprises a first synchronous swing body and a second synchronous swing body, and the first synchronous swing body and the second synchronous swing body are respectively installed on opposite sides of the fixed base in the width direction and are rotationally connected with the fixed base. The first clamping piece is installed on the first fixed plate and opposite to the first synchronous swing body, and the first clamping piece is movable relative to the first fixed plate.

[0005] The first fixed plate is in sliding connection with the first synchronous swing body, and the first fixed plate is rotatable relative to the fixed base to drive the first synchronous swing body to rotate relative to the fixed base and slide relative to the first fixed plate. The second fixed plate is in sliding connection with the second synchronous swing arm, and the second fixed plate is rotatable relative to the fixed base to drive the second synchronous swing body to rotate relative to the fixed base and slide relative to the second fixed plate.

[0006] The first fixed plate and the second fixed plate are folded relative to each other, the first clamping piece abuts against the first synchronous swing body and generates an elastic force. The first fixed plate and the second fixed plate are unfolded relative to each other, and the elastic force of the first clamping piece is released to enable the first clamping piece to clamp the first synchronous swing body.

[0007] The rotating mechanism is applied to a foldable electronic device, which comprises a first shell, a second shell and a display screen. The first shell is fixedly connected with a first fixed plate, and the second shell is fixedly connected with a second fixed plate. The rotating mechanism is located between the first shell and the second shell and connects the first shell and the second shell in a rotating mode. The rotating mechanism can drive the first shell and the second shell to rotate relative to each other. The first shell and the second shell are also provided with accommodating grooves for accommodating electronic components such as processors, circuit boards and camera modules and structural components of the electronic device. When the foldable electronic device is in a folded state, the display screen is bent.

[0008] It should be noted that the relative folding of the first fixed plate and the second fixed plate refers to the rotation of the first fixed plate and the second fixed plate towards each other to make the first fixed plate and the second fixed plate stacked. That is, the rotating mechanism is in a folded state. The relative unfolding of the first fixed plate and the second fixed plate refers to the rotation of the first fixed plate and the second fixed plate away from each other to make the included angle between the first fixed plate and the second fixed plate larger and closer to 180 degrees. That is, the rotating mechanism is in an unfolded state.

[0009] The first synchronous swing body and the second synchronous swing body rotate simultaneously, and the rotating directions of the first synchronous swing body and the second synchronous swing body are opposite.

[0010] In this embodiment, when the rotating mechanism is in a folded state, the first clamping member abuts against the first synchronous swing body and generates an elastic force. Rotating the first fixed plate can drive the first clamping member to move relative to the first synchronous swing body. When the rotating mechanism is rotated to an unfolded state, the elastic force of the first clamping member is released, so that the first clamping member clamps the first synchronous swing body. That is, when the rotating mechanism is rotated to an unfolded state, the force acting on the first fixed plate changes suddenly, and the user gets feedback in hand feeling, so that the rotating mechanism can be prevented from being continuously rotated after being rotated to an unfolded state, damage to the display screen can be avoided, and the user's experience can be improved.

[0011] In an embodiment, the first synchronous swing body comprises a first abutting surface provided with a first clamping groove, the first clamping member comprises a first elastic body and a first clamping body, the first elastic body is connected with the first clamping body, the first fixed plate is folded relative to the second fixed plate, the end of the first clamping body abuts against the first abutting surface, and the first elastic body is in a compressed state. The first fixed plate is unfolded relative to the second fixed plate, the first synchronous swing body slides relative to the first fixed plate, drives the first clamping body to slide into the first clamping groove, and the rebound force of the first elastic body makes the first clamping body clamped in the first clamping groove.

[0012] In the embodiment, the first elastic body drives the first clamping body to move by the elastic restoring force, so that when the first clamping body is opposite to the first clamping groove, the first clamping body can move towards the first clamping groove under the action of the elastic restoring force of the first elastic body, and the end of the first clamping body moves into the first clamping groove, so as to realize that the first clamping body clamps the first synchronous swinging body, thereby the structure of the rotating mechanism can be simplified.

[0013] In one embodiment, the end surface of the first clamping piece is an arc surface, and the side wall of the first clamping groove is connected to the first abutting surface by an arc chamfer.

[0014] When the rotating mechanism is folded from the folded state to the unfolded state, the end of the first clamping body slides along the first abutting surface and slides along the side wall of the first clamping groove into the first clamping groove, so as to realize that the first clamping body clamps the first synchronous swinging body. In the embodiment, the side wall of the first clamping groove is connected to the first abutting surface by an arc chamfer, so that the end of the first clamping body can be conveniently slid into the first clamping groove, and the end of the first clamping body can be conveniently slid out of the first clamping groove, thereby the rotating mechanism can be more easily opened and closed.

[0015] In one embodiment, the first clamping body includes a first column and a first abutting block, the first column includes a first clamping end and a first free end, the first clamping end and the first free end are oppositely arranged, the first abutting block is located on the outer periphery of the first column and is fixedly connected with the first column, and the first abutting block protrudes from the outer surface of the first column. The first elastic body is sleeved on the outer surface of the first column and is in contact with the first abutting block, and the first clamping end is directed away from the first elastic body.

[0016] When the first fixed plate is folded relative to the second fixed plate, the first clamping end abuts against the first abutting surface, and the first elastic body is compressed by the first abutting block, so that the first elastic body is in a compressed state; when the first fixed plate is unfolded relative to the second fixed plate, the first clamping end slides into the first clamping groove, the first elastic body is elastically elongated and abuts against the first abutting block, so as to drive the first clamping end to be clamped in the first clamping groove by the first abutting block.

[0017] In the embodiment, the first elastic body is compressed by the first abutting block, so that the first elastic body is in a compressed state, and when the elastic force of the first elastic body is released, the first elastic body abuts against the first abutting block and drives the first clamping end towards the first clamping groove and engages with the first clamping groove, thereby the structure of the rotating mechanism can be further simplified.

[0018] In one embodiment, the synchronous swing arm further comprises a synchronous gear, the first synchronous swing body and the second synchronous swing body are respectively connected to opposite sides of the synchronous gear, and the synchronous gear is installed in the fixed base; when the first fixed plate rotates relative to the fixed base, the first synchronous swing body is driven to rotate relative to the fixed base, so as to drive the second synchronous swing body to rotate relative to the fixed base through the synchronous gear, thereby driving the second fixed plate to rotate relative to the fixed base.

[0019] In this embodiment, the synchronous gear is arranged, so that when the first fixed plate drives the first synchronous swing body to rotate, the first synchronous swing body can drive the second synchronous swing body to rotate through the synchronous gear, thereby driving the second fixed plate to rotate, so as to realize synchronous rotation of the first fixed plate and the second fixed plate, thereby improving the convenience and reliability of the rotation mechanism, and improving the user experience.

[0020] In one embodiment, the rotation mechanism further comprises a second clamping piece, the second clamping piece is installed on the second fixed plate and opposite to the second synchronous swing body; the second fixed plate can rotate relative to the fixed base to drive the second synchronous swing body to rotate, and slide relative to the second fixed plate.

[0021] When the second fixed plate is folded relative to the fixed base, the second clamping piece abuts against the second synchronous swing body and generates an elastic force; when the first fixed plate is folded relative to the second fixed plate, the second clamping piece abuts against the second synchronous swing body and generates an elastic force; when the first fixed plate is unfolded relative to the second fixed plate, the elastic force of the second clamping piece is released to enable the second clamping piece to clamp the second synchronous swing body.

[0022] In this embodiment, when the rotation mechanism is in the folded state, the second clamping piece abuts against the second synchronous swing body and generates an elastic force. Rotating the second fixed plate can drive the second clamping piece to move relative to the second synchronous swing body. When the rotation mechanism is rotated to the unfolded state, the elastic force of the second clamping piece is released to enable the second clamping piece to clamp the second synchronous swing body. That is, when the rotation mechanism is rotated to the unfolded state, the force acting on the second fixed plate changes suddenly, and the user can get feedback in hand feeling, so as to avoid the rotation mechanism from being continuously rotated after being rotated to the unfolded state, thereby avoiding damage to the display screen, and further improving the user experience.

[0023] In one embodiment, the second synchronous swing body comprises a second abutting surface provided with a second clamping groove, the second clamping member comprises a second elastic body and a second clamping body, the second elastic body is connected with the second clamping body, the first fixed plate is folded relative to the second fixed plate, the end of the second clamping body abuts against the second abutting surface, and the second elastic body is in a compressed state. When the first fixed plate is unfolded relative to the second fixed plate, the second synchronous swing body slides relative to the second fixed plate, driving the second clamping body to slide into the second clamping groove, and the elastic recovery force of the second elastic body causes the second clamping body to be clamped in the second clamping groove.

[0024] In one embodiment, the second clamping body comprises a second column body and a second abutting block, the second column body comprises a second clamping end and a second free end, the second clamping end and the second free end are arranged oppositely, the second abutting block is located on the outer periphery of the second column body and is fixedly connected with the second column body, and the second abutting block protrudes from the outer surface of the second column body; the second elastic body is sleeved on the outer surface of the second column body and is in contact with the second abutting block, and the second clamping end faces away from the second elastic body. When the first fixed plate is folded relative to the second fixed plate, the second clamping end abuts against the second abutting surface and compresses the second elastic body through the second abutting block, so that the second elastic body is in a compressed state; when the first fixed plate is unfolded relative to the second fixed plate, the second clamping end slides into the second clamping groove, the second elastic body elastically extends and abuts against the second abutting block, so as to drive the second clamping end to be clamped in the second clamping groove through the second abutting block.

[0025] In one embodiment, the elastic recovery force of the second elastic body drives the second clamping body to move, so that when the second clamping body is opposite to the second clamping groove, the second clamping body can move towards the second clamping groove under the action of the elastic recovery force of the second elastic body, and the end of the second clamping body moves into the second clamping groove, so as to realize clamping of the second clamping body to the second synchronous swing body, thereby further simplifying the structure of the rotating mechanism.

[0026] In one embodiment, the fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are arranged oppositely. The rotating mechanism comprises a first main swing arm and a second main swing arm, the first main swing arm is installed in the first rotating groove and can slide along the first rotating groove, and the first main swing arm is rotationally connected with the first fixed plate; the second main swing arm is installed in the second rotating groove and can slide along the second rotating groove, and the second main swing arm is rotationally connected with the second fixed plate. When the first fixed plate rotates relative to the fixed base, the first main swing arm can be driven to rotate relative to the fixed base; when the second fixed plate rotates relative to the fixed base, the second main swing arm can be driven to rotate relative to the fixed base.

[0027] The first fixed plate is used for fixed connection with a first shell of the foldable electronic device, and the second fixed plate is used for fixed connection with a second shell of the foldable electronic device. When the first shell rotates relative to the fixed base, the first fixed plate is driven to rotate, thereby driving the first main swing arm to rotate. When the second shell rotates relative to the fixed base, the second fixed plate is driven to rotate, thereby driving the second main swing arm to rotate, so as to realize folding or unfolding of the rotating mechanism, and further ensure the stability of rotation of the rotating mechanism and the foldable electronic device.

[0028] In an embodiment, the rotating mechanism comprises a floating plate, which is installed on the fixed base and is arranged opposite to the bottom plate of the fixed base. The fixed base is provided with an elastic member. One end of the elastic member is fixedly connected with the bottom plate, and the other end is fixedly connected with the floating plate. The elastic elongation direction of the elastic member is parallel to the thickness direction of the fixed base.

[0029] When the rotating mechanism is in the unfolded state, the main swing arm abuts against the floating plate, and the floating plate pulls the elastic member, so that the elastic member is in an elastic elongation state. When the rotating mechanism is in the folded state, the foldable part of the display screen is bent and protrudes outward toward the floating plate, the main swing arm releases the floating plate, the elastic member elastically retracts to a natural state, and the elastic force of the elastic member drives the floating plate to move toward the direction close to the bottom plate to avoid the display screen, so as to avoid the floating plate pressing the display screen and causing damage to the display screen. Of course, when the rotating mechanism is in the folded state, the elastic member can also be in a compressed state under the gravity of the floating plate. In an embodiment, the floating plate can be abutted or released by the pressing plate swing arm, so as to realize the movement of the floating plate in the Z direction.

[0030] In an embodiment, the rotating mechanism comprises a first secondary swing arm and a second secondary swing arm. The first secondary swing arm is rotationally connected with the fixed base and is slidably connected with the first fixed plate. When the first fixed plate rotates relative to the fixed base, the first secondary swing arm can be driven to rotate relative to the fixed base. The second secondary swing arm is rotationally connected with the fixed base and is slidably connected with the second fixed plate. When the second fixed plate rotates relative to the fixed base, the second secondary swing arm can be driven to rotate relative to the fixed base.

[0031] In the present embodiment, by arranging the first secondary swing arm, when the first fixed plate rotates relative to the fixed base, the first secondary swing arm and the first main swing arm are driven to rotate together, so as to realize the rotation of the first fixed plate relative to the fixed base, thereby increasing the stability of rotation of the first fixed plate. By arranging the second secondary swing arm, when the second fixed plate rotates relative to the fixed base, the second secondary swing arm and the second main swing arm are driven to rotate together, so as to realize the rotation of the second fixed plate relative to the fixed base, thereby increasing the stability of rotation of the second fixed plate.

[0032] In one embodiment, the rotating mechanism further comprises a first pressing plate and a second pressing plate, the first pressing plate is in sliding connection with the first fixed plate, and when the first fixed plate rotates relative to the fixed base, the first pressing plate can be driven to rotate relative to the fixed base. The second pressing plate is in sliding connection with the second fixed plate, and when the second pressing plate rotates relative to the fixed base, the second pressing plate can be driven to rotate relative to the fixed base.

[0033] In this embodiment, the first fixed plate drives the first pressing plate to rotate, and the second fixed plate drives the second pressing plate to rotate, so as to realize the folding and unfolding of the display screen. In addition, the first pressing plate and the first fixed plate are in sliding connection, and the second pressing plate and the second fixed plate are in sliding connection, so that the included angle between the first pressing plate and the second pressing plate can be adjusted, thereby adapting to the folding angle of the foldable part of the display screen.

[0034] In one embodiment, the first fixed plate is provided with a first guide groove, the first pressing plate comprises a first sliding block, the first pressing plate and the first fixed plate are stacked, the first sliding block is located in the first guide groove, and the first sliding block can slide along the first guide groove. The second fixed plate is provided with a second guide groove, the second pressing plate comprises a second sliding block, the second pressing plate and the second fixed plate are stacked, the second sliding block is located in the second guide groove, and the second sliding block can slide along the second guide groove.

[0035] In this embodiment, the first pressing plate and the first fixed plate are in sliding connection by setting the first sliding block on the first pressing plate, setting the first guide groove matched with the first sliding block on the first fixed plate, and sliding the first sliding block in the first guide groove, so as to improve the stability of the first pressing plate sliding relative to the first fixed plate. The second pressing plate and the second fixed plate are in sliding connection by setting the second sliding block on the second pressing plate, setting the second guide groove matched with the second sliding block on the second fixed plate, and sliding the second sliding block in the second guide groove, so as to improve the stability of the second pressing plate sliding relative to the second fixed plate.

[0036] In one embodiment, the rotating mechanism further comprises a first pressing plate swing arm and a second pressing plate swing arm, one end of the first pressing plate swing arm is in rotating connection with the fixed base, the other end is in sliding connection with the first pressing plate, and when the first pressing plate rotates relative to the fixed base, the first pressing plate swing arm can be driven to rotate relative to the fixed base. One end of the second pressing plate swing arm is in rotating connection with the fixed base, the other end is in sliding connection with the second pressing plate, and when the second pressing plate rotates relative to the fixed base, the second pressing plate swing arm can be driven to rotate relative to the fixed base.

[0037] In the embodiment, the first pressing plate swing arm is arranged by the first pressing plate, and the first pressing plate swing arm is driven to rotate by the first pressing plate, so that the first pressing plate rotates relative to the fixed base, and the stability of the rotation of the first pressing plate is improved. In addition, the second pressing plate swing arm is arranged by the second pressing plate, and the second pressing plate swing arm is driven to rotate by the second pressing plate, so that the second pressing plate rotates relative to the fixed base, and the stability of the rotation of the second pressing plate is improved.

[0038] In an embodiment, the rotating mechanism includes a damping member in contact with the synchronous gear, and a damping force is generated between the damping member and the synchronous gear when the synchronous gear rotates. In the embodiment, the synchronous gear and the damping member have a damping force therebetween when the synchronous gear rotates, so that the opening and closing feeling of the rotating mechanism is improved, and the user experience is improved.

[0039] In a second aspect, the application provides a foldable electronic device, which includes a first shell, a second shell, a display screen, and the above-mentioned rotating mechanism. The rotating mechanism is connected between the first shell and the second shell. The display screen is mounted on the first shell, the second shell, and the rotating mechanism. When the rotating mechanism rotates, the first shell and the second shell rotate relative to each other, thereby driving the display screen to bend or unfold.

[0040] When the foldable electronic device is in an unfolded state, the first shell and the second shell are unfolded relative to each other, and the rotating mechanism is in an unfolded state. When the foldable electronic device is in a folded state, the first shell and the second shell are folded relative to each other, and the rotating mechanism is in a folded state.

[0041] When the rotating mechanism is in a folded state, the first fixed plate and the second fixed plate are folded relative to each other, the first pressing plate and the second pressing plate are folded relative to each other, and the floating plate sinks towards the fixed base and forms an avoiding space. The foldable part of the display screen is located on the inner side of the rotating mechanism. Part of the foldable part is located between the first pressing plate and the second pressing plate and is spaced apart from the first pressing plate and the second pressing plate. Part of the foldable part is opposite to the floating plate and is located in the avoiding space, so that the display screen can be prevented from being damaged by extrusion between the display screen and the floating plate, and the display screen can also be prevented from being damaged by the floating plate in the reliability test. In addition, the first clamping end of the first clamping member is misaligned with the first clamping groove of the first synchronous swing body, and the second clamping end of the second clamping member is misaligned with the second clamping groove of the second synchronous swing body.

[0042] When the foldable electronic device is in the unfolded state, the first shell and the second shell are relatively unfolded, the first fixed plate and the second fixed plate are arranged in parallel and are unfolded relative to the fixed base. The first pressing plate and the second pressing plate are arranged in parallel and are unfolded relative to the fixed base. The end of the first main swing arm and the end of the second main swing arm abut against the floating plate, the elastic member is stretched and is in a stretched state. The first pressing plate, the second pressing plate and the floating plate jointly support the display screen. The first clamping end of the first clamping piece is located in the first clamping slot of the first synchronous swing body, and the second clamping end of the second clamping piece is located in the second clamping slot of the second synchronous swing body. When the foldable electronic device provided in the embodiment is in the unfolded state, the first clamping piece clamps the first synchronous swing body, the force acting on the first fixed plate changes suddenly, the second clamping piece clamps the second synchronous swing body, the force acting on the second fixed plate changes suddenly, and the user obtains feedback, so that the rotating mechanism can be prevented from continuing to rotate after being rotated to the unfolded state, damage to the display screen is avoided, and the user experience is improved.

[0043] In summary, when the rotating mechanism is in the folded state, the first clamping piece abuts against the first synchronous swing body and generates an elastic force. Rotating the first fixed plate can drive the first clamping piece to move relative to the first synchronous swing body. When the rotating mechanism is rotated to the unfolded state, the elastic force of the first clamping piece is released, so that the first clamping piece clamps the first synchronous swing body. That is, when the rotating mechanism is rotated to the unfolded state, the force acting on the first fixed plate changes suddenly, the user obtains feedback in terms of hand feeling, so that the rotating mechanism can be prevented from continuing to rotate after being rotated to the unfolded state, damage to the display screen is avoided, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the background art, the drawings needed to be used in the embodiments of the present application or the background art will be described below.

[0045] Figure 1 is a structural schematic diagram of a foldable electronic device in a first state provided by the embodiment of the present application;

[0046] Figure 2 is a structural schematic diagram of a foldable electronic device in a second state provided by the embodiment of the present application;

[0047] Figure 3 is a structural schematic diagram of a foldable electronic device in a third state provided by the embodiment of the present application;

[0048] Figure 4 is an exploded structural schematic diagram of the foldable electronic device shown in FIG. 1; Figure 3

[0049] Figure 5 is an exploded structural schematic diagram of the foldable electronic device shown in FIG. 1; Figure 4 ​Structure diagram of a rotating mechanism in the foldable electronic device shown;

[0050] Figure 6 is Figure 5 Structure diagram of an exploded view of the rotating mechanism shown;

[0051] Figure 7 is Figure 5 Structure diagram of a partial view of the rotating mechanism shown;

[0052] Figure 8 is Figure 5 Sectional view of the rotating mechanism shown along the C-C direction;

[0053] Figure 9 is Figure 6 Structure diagram of an enlarged view of the first fixed plate and the second fixed plate in the rotating mechanism shown;

[0054] Figure 10 is Figure 9 Structure diagram of another angle of the first fixed plate and the second fixed plate in the rotating mechanism shown;

[0055] Figure 11 is Figure 6 Structure diagram of the first clamping member and the second clamping member in the rotating mechanism shown;

[0056] Figure 12 is Figure 5 Structure diagram of a partial view of the rotating mechanism shown;

[0057] Figure 13 is Figure 5 Structure diagram of a partial view of the rotating mechanism shown;

[0058] Figure 14 is Figure 5 Structure diagram of a partial view of the rotating mechanism shown;

[0059] Figure 15 is Figure 5 Partial sectional view of the rotating mechanism shown in a folded state;

[0060] Figure 16 is Figure 5 Partial sectional view of the rotating mechanism shown in an unfolded state;

[0061] Figure 17 Structure diagram of the first pressing plate and the second pressing plate in the rotating mechanism shown;

[0062] Figure 18 is Figure 5 Structure diagram of a partial view of the rotating mechanism shown;

[0063] Figure 19 isFigure 6 An enlarged structural schematic view of the first main swing arm and the second main swing arm in the rotating mechanism shown in FIG. 1;

[0064] Figure 20 is Figure 6 An enlarged structural schematic view of the first auxiliary swing arm and the second auxiliary swing arm in the rotating mechanism shown in FIG. 1;

[0065] Figure 21 is Figure 6 A structural schematic view of the first pressing plate swing arm and the second pressing plate swing arm in the rotating mechanism shown in FIG. 1;

[0066] Figure 22 is Figure 5 A partial structural schematic view of the rotating mechanism shown in FIG. 1;

[0067] Figure 23 is Figure 5 A partial structural schematic view of the rotating mechanism shown in FIG. 1 in a folded state;

[0068] Figure 24 is Figure 1 A structural schematic view of the foldable electronic device shown in FIG. 1 from another angle. DETAILED DESCRIPTION

[0069] The embodiments of the present application will be described below with reference to the accompanying drawings.

[0070] With the development of science and technology, the appearance (ID) form of electronic devices (such as mobile phones, tablet computers, etc.) has a trend from a straight phone to a folding phone. The folding phone has a large screen in the open state, fully meeting the visual experience of consumers, and has a small volume in the closed state, being convenient to carry. However, in the prior art, when the folding phone is rotated to the unfolded state, the user cannot get feedback on the hand feeling, thereby causing the technical problem of over-expansion and damage to the screen. The rotating mechanism provided in the present application can provide feedback on the hand feeling when rotated to the unfolded state, thereby avoiding the rotating mechanism from continuing to rotate after being rotated to the unfolded state, and causing damage to the display screen, and improving the user's experience.

[0071] Please refer to Figures 1 to 3 , Figure 1 is a structural schematic view of a foldable electronic device 500 in a first state provided by an embodiment of the present application, Figure 2 is a structural schematic view of a foldable electronic device 500 in a second state provided by an embodiment of the present application, Figure 3 is a structural schematic view of a foldable electronic device 500 in a third state provided by an embodiment of the present application.

[0072] For ease of description, a width direction of the foldable electronic device 500 is defined as an X direction, a length direction of the foldable electronic device 500 is defined as a Y direction, and a thickness direction of the foldable electronic device 500 is defined as a Z direction. The X direction, the Y direction, and the Z direction are perpendicular to each other in pairs.

[0073] The foldable electronic device 500 includes, but is not limited to, a cellphone, a notebook computer, a tablet personal computer, a laptop computer, a personal digital assistant, a wearable device, or a mobile device, and the like. In the embodiments of the present application, the foldable electronic device 500 is taken as an example of a cellphone for illustration.

[0074] Figure 1 The foldable electronic device 500 shown in the figure is in a folded state, Figure 2 The foldable electronic device 500 shown in the figure is in a half-opened state, Figure 3 The foldable electronic device 500 shown in the figure is in an opened state. Wherein, Figure 2 The opening angle α of the foldable electronic device 500 shown in the figure is 90 degrees, Figure 3 The opening angle β of the foldable electronic device 500 shown in the figure is 180 degrees.

[0075] It should be noted that the angles illustrated in the embodiments of the present application are allowed to have a small deviation. For example, Figure 2 The opening angle α of the foldable electronic device 500 shown in the figure is 90 degrees means that α can be 90 degrees, or approximately 90 degrees, such as 80 degrees, 85 degrees, 95 degrees, or 100 degrees, etc. Figure 3 The opening angle β of the foldable electronic device 500 shown in the figure is 180 degrees means that β can be 180 degrees, or approximately 180 degrees, such as 170 degrees, 175 degrees, 185 degrees, and 190 degrees, etc. The angles illustrated in the following examples can be understood in the same way.

[0076] The foldable electronic device 500 illustrated in the embodiments of the present application is an electronic device that can be folded once. In some other embodiments, the foldable electronic device 500 can also be an electronic device that can be folded multiple times (more than twice). At this time, the foldable electronic device 500 can include multiple parts, and adjacent two parts can be relatively close to be folded to the foldable electronic device 500 in a folded state, and adjacent two parts can be relatively far away to be unfolded to the foldable electronic device 500 in an opened state.

[0077] Please refer to Figure 4 ,Figure 4 is Figure 3 is an exploded structural schematic diagram of the foldable electronic device 500.

[0078] The foldable electronic device 500 includes the folding device 200 and a display screen 300, and the display screen 300 is mounted on the folding device 200. The display screen 300 includes a display surface 340 and a mounting surface 350, and the display surface 340 and the mounting surface 350 are oppositely arranged. The display surface 340 is used to display text, images, videos, and the like. The display screen 300 includes a first part 310, a second part 320, and a foldable part 330. The foldable part 330 is located between the first part 310 and the second part 320, and the foldable part 330 can be bent along the Y direction. The first part 310, the second part 320, and the foldable part 330 jointly constitute the display screen 300. In this embodiment, the display screen 300 adopts a flexible display screen, for example, an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode display screen, a micro organic light-emitting diode display screen, a micro organic light-emitting diode display screen, or a quantum dot light emitting diode (QLED) display screen.

[0079] The folding device 200 comprises a first housing 210, a second housing 220 and a rotating mechanism 100. The first housing 210 is provided with a first mounting space 230, and the second housing 220 is provided with a second mounting space 240. The first mounting space 230 and the second mounting space 240 are communicated to form a mounting space of the rotating mechanism. The rotating mechanism 100 is mounted in the mounting space and fixedly connected with the first housing 210 and the second housing 220 to realize the rotating connection between the first housing 210 and the second housing 220. The display screen 300 is mounted on the folding device 200, and the mounting surface 350 is fixedly connected with the folding device 200. Specifically, the first housing 210 bears the first part 310 of the display screen 300, and the second housing 220 bears the second part 320. In other words, the first part 310 is mounted on the first housing 210, and the second part 320 is mounted on the second housing 220. The rotating mechanism 100 is arranged opposite to the foldable part 330. The first housing 210 and the second housing 220 can be relatively rotated through the rotating mechanism 100, so that the folding device 200 can be switched between the folded state and the unfolded state.

[0080] In combination Figure 1 , the first housing 210 and the second housing 220 are relatively rotated through the rotating mechanism 100, and the display screen 300 is folded by relatively approaching the first housing 210 and the second housing 220, so that the foldable electronic device 500 is folded. When the foldable electronic device 500 is in the folded state, the foldable part 330 of the display screen 300 is bent, and the first part 310 and the second part 320 are arranged opposite to each other. At this time, the display screen 300 is between the first housing 210 and the second housing 220, which can greatly reduce the probability of damage to the display screen 300 and realize effective protection of the display screen 300.

[0081] Please refer to Figure 2 and Figure 4 , the first housing 210 and the second housing 220 are relatively rotated through the rotating mechanism 100, and the display screen 300 is unfolded by relatively moving away the first housing 210 and the second housing 220, so that the foldable electronic device 500 is unfolded to the half-unfolded state. When the foldable electronic device 500 is in the half-unfolded state, the first housing 210 and the second housing 220 are unfolded to an included angle α, the first part 310 and the second part 320 are relatively unfolded, and the foldable part 330 is unfolded. At this time, the included angle between the first part 310 and the second part 320 is α. In this embodiment, α is 90 degrees. In other embodiments, α can also be about 90 degrees, and can also be 80 degrees, 85 degrees, 95 degrees or 100 degrees, etc.

[0082] Please refer to Figure 3 and Figure 4The first shell 210 and the second shell 220 are relatively rotated through the rotating mechanism 100, the display screen 300 is further unfolded through the first shell 210 and the second shell 220 relatively moving away, and the foldable electronic device 500 is unfolded. When the folding device 200 is in the unfolded state, the included angle between the first shell 210 and the second shell 220 is β. The foldable part 330 is unfolded, and the first part 310 and the second part 320 are relatively unfolded. At this time, the included angles between the first part 310, the second part 320 and the foldable part 330 are all β, the display screen 300 has a large-area display region, the large-screen display of the foldable electronic device 500 is realized, and the use experience of the user is improved. In the embodiment, β is 180 degrees. In other embodiments, β can be about 180 degrees, and can be 170 degrees, 175 degrees, 185 degrees, 190 degrees and the like.

[0083] It should be noted that the included angle α and the included angle β are both the included angle between the first shell 210 and the second shell 220, which is only to distinguish the angles between the first shell 210 and the second shell 220 in different states of the foldable electronic device 500. The included angle α refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 500 is in the half-flat state; and the included angle β refers to the angle between the first shell 210 and the second shell 220 when the foldable electronic device 500 is in the flat state.

[0084] Please refer to Figure 5 and Figure 6 , Figure 5 is Figure 4 the structure diagram of the rotating mechanism 100 in the foldable electronic device 500 shown in FIG. 1, Figure 6 is Figure 5 the exploded structure diagram of the rotating mechanism 100 shown in FIG. 2.

[0085] The rotating mechanism 100 includes a fixed base 10, a floating plate 1, a fixed plate 20, a pressing plate 40, a clamping piece 30 and a rotating assembly. The rotating assembly includes a main swing arm 50, a secondary swing arm 60, a synchronous swing arm 70 and a pressing plate swing arm 80. The floating plate 1 is installed on the fixed base 10, and the floating plate 1 can move in the Z direction relative to the fixed base 10. The pressing plate 40 is installed on the fixed plate 20, and the pressing plate 40 can slide relative to the fixed plate 20. The clamping piece 30 is installed on the fixed plate 20 and can move relative to the fixed plate 20. The main swing arm 50, the secondary swing arm 60, the synchronous swing arm 70 and the pressing plate swing arm 80 are arranged along the length direction of the fixed base 10. Among them, the main swing arm 50 is rotationally connected with the fixed plate 20, the secondary swing arm 60 is slidingly connected with the fixed plate 20, the synchronous swing arm 70 is slidingly connected with the fixed plate 20, and the pressing plate swing arm 80 is slidingly connected with the pressing plate 40. The foldable part 330 of the display screen 300 is arranged opposite to the floating plate 1 and the pressing plate 40.

[0086] When the fixed plate 20 rotates relative to the fixed base 10, the main swing arm 50, the auxiliary swing arm 60 and the synchronous swing arm 70 are driven to rotate relative to the fixed base 10. Meanwhile, the synchronous swing arm 70 rotates relative to the fixed base 10 and slides relative to the fixed plate 20. When the rotating mechanism 100 rotates to the unfolded state, the clamping piece 30 is clamped with the synchronous swing arm 70. Meanwhile, the fixed plate 20 also drives the pressing plate 40 to rotate relative to the fixed base 10, so as to drive the pressing plate swing arm 80 to rotate relative to the fixed base 10, thereby realizing the rotation of the rotating mechanism 100.

[0087] Please continue to refer to Figure 5 and Figure 6 , in order to facilitate the description, the present application sets the center axis O. Wherein, the center axis O is parallel to the Z direction, and the center axis O passes through the center of the rotating mechanism 100, and the rotating mechanism 100 is centrally symmetric about the center axis O. It should be noted that the fixed plate 20, the clamping piece 30, the main swing arm 50, the auxiliary swing arm 60, the synchronous swing arm 70 and the pressing plate swing arm 80 are a group of substructures. The whole rotating mechanism 100 has at least two groups of the above-mentioned substructures, and the fixed base 10 is provided with a group of the above-mentioned substructures at the opposite ends in the Y direction, and the substructures at the opposite ends of the fixed base 10 are centrally symmetric about the center axis O. That is, the fixed base 10 is provided with the fixed plate 20, the clamping piece 30, the main swing arm 50, the auxiliary swing arm 60, the synchronous swing arm 70 and the pressing plate swing arm 80 at one end, and the fixed base 10 is also provided with the fixed plate 20, the clamping piece 30, the main swing arm 50, the auxiliary swing arm 60, the synchronous swing arm 70 and the pressing plate swing arm 80 at the other end. In order to enhance the stability of the whole rotating mechanism 100, a group of the above-mentioned substructures are additionally provided between the substructures at the two ends of the fixed base 10, and the substructures are located in the middle of the fixed base 10. In order to further enhance the stability of the whole rotating mechanism 100, two groups of the above-mentioned substructures can be additionally provided between the substructures at the two ends of the fixed base 10, and the two groups of substructures are centrally symmetric about the center axis O between the two ends of the fixed base 10. It should be noted that the number of the above-mentioned substructures can be adjusted according to actual conditions.

[0088] Wherein, in each group of substructures, the fixed plate 20 comprises a first fixed plate 21 and a second fixed plate 22, the clamping piece 30 comprises a first clamping piece 31 and a second clamping piece 32 (as shown in Figure 12 ), the main swing arm 50 comprises a first main swing arm 51 and a second main swing arm 52, the pressing plate swing arm 80 comprises a first pressing plate swing arm 81 and a second pressing plate swing arm 82, the synchronous swing arm 70 comprises a first synchronous swing body 71 and a second synchronous swing body 72 (as shown in Figure 13 ), and the first synchronous swing body 71 and the second synchronous swing body 72 are rotatably connected to opposite sides of the synchronous gear 73.

[0089] Please refer to Figure 7 , Figure 7 is Figure 5A partial structure diagram of the rotation mechanism 100.

[0090] The fixed base 10 comprises a bottom plate 11, a first side plate 12, a second side plate 13, a first end plate 14, a second end plate (not shown in the figure), and a cover plate 15. The first side plate 12 is arranged opposite to the second side plate 13, and the first side plate 12 and the second side plate 13 are respectively connected to opposite sides of the bottom plate 11 in the X direction. The first end plate 14 and the second end plate are opposite, and the first end plate 14 and the second end plate are both connected between the first side plate 12 and the second side plate 13, and are respectively connected to opposite sides of the bottom plate 11 in the Y direction. The bottom plate 11, the first side plate 12, the second side plate 13, the first end plate 14, and the second end plate together enclose a receiving space 16 with an opening, and the opening is arranged opposite to the bottom plate 11. The bottom plate 11 is provided with a first rotation groove 101 and a second rotation groove 102 along the X direction. The bottom walls of the first rotation groove 101 and the second rotation groove 102 are both arc-shaped, and the first rotation groove 101 and the second rotation groove 102 are arranged staggered in the Y direction. Of course, in other embodiments, the first rotation groove 101 and the second rotation groove 102 can also be arranged side by side in the Y direction. The first rotation groove 101 and the second rotation groove 102 are used to install the main swing arm 50, and the main swing arm 50 can slide and rotate in the first rotation groove 101 and the second rotation groove 102.

[0091] The cover plate 15 comprises a first cover plate 151 and a second cover plate 152. The first cover plate 151 and the second cover plate 152 are both plate-shaped structures. The first cover plate 151 is arranged opposite to the first rotation groove 101 and is fixedly connected with the first side plate 12. The first cover plate 151 can prevent the rotation assembly from dislocation when sliding in the first rotation groove 101. The second cover plate 152 is arranged opposite to the second rotation groove 102 and is fixedly connected with the second side plate 13, and the second cover plate 152 can prevent the rotation assembly from dislocation when sliding in the second rotation groove 102.

[0092] The fixed base 10 is also provided with a first opening 103 and a second opening 104. The first opening 103 penetrates the first side plate 12 and the first cover plate 151 and communicates with the first rotation groove 101. The second opening 104 penetrates the second side plate 13 and the second cover plate 152 and communicates with the second rotation groove 102. That is, the first opening 103 and the second opening 104 are respectively located on opposite sides of the fixed base 10 in the X direction. The first opening 103 is used for the main swing arm 50 to pass through, so that the main swing arm 50 is installed into the first rotation groove 101. The second opening 104 is used for the main swing arm 50 to pass through, so that the main swing arm 50 is installed into the second rotation groove 102.

[0093] The fixed base 10 is further provided with a first mounting slot 105 and a second mounting slot 106. The first mounting slot 105 is located near the first side plate 12, and the first mounting slot 105 is arranged in the Y direction with the first rotating slot 101. The second mounting slot 106 is located near the second side plate 13, and the second mounting slot 106 is arranged in the Y direction with the second rotating slot 102. The first mounting slot 105 and the second mounting slot 106 are used to mount the auxiliary swing arm 60, so that the auxiliary swing arm 60 is rotatably connected with the fixed base 10.

[0094] It should be noted that, Figure 7 Only the structure of the fixed base 10 in the negative direction of the Y axis is shown. The fixed base 10 is a structure that is centrally symmetric about the center axis O. Among them, the bottom plate 11 is further provided with a third rotating slot and a fourth rotating slot (not shown in the figure). The third rotating slot and the fourth rotating slot are arranged at one end of the fixed base 10 away from the first rotating slot 101 and the second rotating slot 102, and the third rotating slot is centrally symmetric with the second rotating slot 102 about the center axis O, and the fourth rotating slot is centrally symmetric with the first rotating slot 101 about the center axis O. The third rotating slot and the fourth rotating slot are used to mount the main swing arm 50 located on the positive direction of the Y axis. The fixed base 10 is provided with a third mounting slot and a fourth mounting slot (not shown in the figure). The third mounting slot and the fourth mounting slot are arranged at one end of the fixed base 10 away from the first mounting slot 105 and the second mounting slot 106, and the third mounting slot is centrally symmetric with the second mounting slot about the center axis O, and the fourth mounting slot is centrally symmetric with the first mounting slot about the center axis O. The third mounting slot and the fourth mounting slot are used to mount the auxiliary swing arm 60 located on the positive direction of the Y axis.

[0095] Please refer to Figure 6 and Figure 8 , Figure 8 is Figure 5 the rotating mechanism 100 shown in the cross-sectional view along the C-C direction.

[0096] The floating plate 1 is a long strip-shaped plate structure. The floating plate 1 is mounted at the opening of the fixed base 10 and is arranged opposite to the bottom plate 11, and the floating plate 1 is arranged side by side with the cover plate 15. The fixed base 10 is provided with an elastic member 17. In this embodiment, the elastic member 17 is a spring. In other embodiments, the elastic member 17 can also be prepared from other elastic materials. The elastic member 17 is located in the accommodation space 16. One end of the elastic member 17 is fixedly connected with the bottom plate 11, and the other end is fixedly connected with the floating plate 1, and the elastic elongation direction of the elastic member 17 is parallel to the Z direction.

[0097] When the rotating mechanism 100 is in the unfolded state, the main swing arm 50 abuts against the floating plate 1, and the floating plate 1 pulls the elastic member 17, so that the elastic member 17 is in an elastic elongation state. When the rotating mechanism 100 is in the folded state, the foldable part 330 of the display screen 300 is bent and protrudes outward in the direction of the floating plate 1, the main swing arm 50 releases the floating plate 1, the elastic member 17 elastically retracts to a natural state, and the elastic force of the elastic member 17 drives the floating plate 1 to move in the direction of approaching the storage space 16, so as to avoid the display screen 300 and prevent the floating plate 1 from pressing the display screen 300 and causing damage to the display screen 300. Of course, when the rotating mechanism 100 is in the folded state, the elastic member 17 can also be in a compressed state under the action of the gravity of the floating plate 1. In an embodiment, the floating plate 1 can also be abutted or released by the pressing plate swing arm, so as to realize the movement of the floating plate 1 in the Z direction.

[0098] Please refer to Figure 9 and Figure 10 , Figure 9 is Figure 6 the enlarged structural schematic view of the first fixed plate 21 and the second fixed plate 22 in the rotating mechanism 100 shown in Figure 10 is Figure 9 the structural schematic view of the first fixed plate 21 and the second fixed plate 22 in the rotating mechanism 100 shown in FIG. 1 from another angle.

[0099] The fixing plate 20 comprises a first fixing plate 21 and a second fixing plate 22. The first fixing plate 21 is a strip-shaped plate structure with a thickness. The first fixing plate 21 comprises a first body 211 and a first shaft sleeve 212. The first body 211 comprises a first upper surface 2111, a first lower surface 2112, a first side surface 2113, a second side surface 2114, a first end surface 2115 and a second end surface 2116. The first upper surface 2111 and the first lower surface 2112 are oppositely arranged, the first side surface 2113 and the second side surface 2114 are oppositely arranged, and the first end surface 2115 and the second end surface 2116 are oppositely arranged. The first side surface 2113 and the second side surface 2114 are connected between the first upper surface 2111 and the first lower surface 2112, and the first end surface 2115 and the second end surface 2116 are connected between the first side surface 2113 and the second side surface 2114. The first upper surface 2111, the first lower surface 2112, the first side surface 2113, the second side surface 2114, the first end surface 2115 and the second end surface 2116 together form the outer surface of the first body 211. The first body 211 is provided with a first notch A, the first notch A is located on the second side surface 2114, and the first notch A penetrates the first upper surface 2111 and the first lower surface 2112. The first shaft sleeve 212 is located in the first notch A and fixedly connected with the first body 211, and the axis extension direction of the first shaft sleeve 212 is parallel to the Y direction. The first shaft sleeve 212 is spaced apart from the inner wall of the first notch A in the Y direction at opposite ends in the Y direction. The first shaft sleeve 212 is used for rotating connection with the main swing arm 50.

[0100] The first body 211 is provided with a first guide groove 213, a first sliding groove 214 and a second sliding groove 215. The first guide groove 213 has two, and the two first guide grooves 213 are both arc-shaped. The two first guide grooves 213 are respectively located at opposite ends of the first body 211 in the Y direction, and the openings at opposite ends of each first guide groove 213 penetrate the first upper surface 2111 and the first side surface 2113. The two first guide grooves 213 are used for sliding connection with the pressing plate 40. The first sliding groove 214 is located between the first end surface 2115 and the first notch A and is spaced apart from the first guide groove 213, and the first sliding groove 214 penetrates the first side surface 2113 and the second side surface 2114. The first sliding groove 214 is used for sliding connection with the auxiliary swing arm 60. The second sliding groove 215 is located between the second end surface 2116 and the first notch A, and the second sliding groove 215 penetrates the first side surface 2113 and the second side surface 2114. The second sliding groove 215 is used for sliding connection with the synchronous swing arm 70.

[0101] The first main body 211 is further provided with a first receiving groove 216. The first receiving groove 216 is located between the second sliding groove 215 and the first notch A, and the first receiving groove 216 is in communication with the second sliding groove 215. The extension direction of the first receiving groove 216 is parallel to the Y direction. In this embodiment, the first receiving groove 216 penetrates the first lower surface 2112. The first receiving groove 216 is used to accommodate the card holder 30.

[0102] Please continue to refer to Figure 9 and Figure 10 The second fixed plate 22 is a strip-shaped plate structure with a thickness. The structure of the second fixed plate 22 is similar to that of the first fixed plate 21. The second fixed plate 22 includes a second main body 221 and a second shaft sleeve 222. The second main body 221 includes a second upper surface 2211, a second lower surface 2212, a third side surface 2213, a fourth side surface 2214, a third end surface 2215, and a fourth end surface 2216, which enclose the outer surface of the second main body 221. The second main body 221 is provided with a second notch B, a second guide groove 223, a third sliding groove 224, a fourth sliding groove 225, and a second receiving groove 226. The structure of the second notch B is the same as that of the first notch A, the structure of the second guide groove 223 is the same as that of the first guide groove 213, the structure of the third sliding groove 224 is the same as that of the first sliding groove 214, the structure of the fourth sliding groove 225 is the same as that of the second sliding groove 215, and the structure of the second receiving groove 226 is the same as that of the first receiving groove 216. The difference between the second fixed plate 22 and the first fixed plate 21 is that the position of the second shaft sleeve 222 is different from that of the first shaft sleeve 212, and the position of the third sliding groove 224 is different from that of the first sliding groove 214. In the second fixed plate 22, the third sliding groove 224 is located between the fourth end surface 2216 and the second notch B, and the second shaft sleeve 222 is located between the third sliding groove 224 and the third end surface 2215.

[0103] Please refer to Figure 6 The first fixed plate 21 and the second fixed plate 22 are respectively located on opposite sides of the fixed base 10 in the X direction. The first fixed plate 21 is fixedly connected with the first shell 210, and the first fixed plate 21 is rotatably connected with the fixed base 10 through a rotating assembly. The rotation of the first shell 210 relative to the fixed base 10 can drive the first fixed plate 21 to rotate relative to the fixed base 10. The second fixed plate 22 is fixedly connected with the second shell 220, and the second fixed plate 22 is rotatably connected with the fixed base 10 through a rotating assembly. The rotation of the second shell 220 relative to the fixed base 10 can drive the second fixed plate 22 to rotate relative to the fixed base 10.

[0104] The fixing plate 20 further comprises a third fixing plate 23 and a fourth fixing plate 24. The third fixing plate 23 has the same structure as the second fixing plate 22, and the third fixing plate 23 is centrally symmetrical to the second fixing plate 22 about the central axis O. The fourth fixing plate 24 has the same structure as the first fixing plate 21, and the fourth fixing plate 24 is centrally symmetrical to the first fixing plate 21 about the central axis O. The third fixing plate 23 is fixedly connected with the first housing 210, and the third fixing plate 23 is spaced apart from the first fixing plate 21 along the Y direction. When the first housing 210 rotates relative to the fixed base 10, the first fixing plate 21 and the third fixing plate 23 are simultaneously rotated relative to the fixed base 10. The fourth fixing plate 24 is fixedly connected with the second housing 220, and the fourth fixing plate 24 is spaced apart from the second fixing plate 22 along the Y direction. When the second housing 220 rotates relative to the fixed base 10, the second fixing plate 22 and the fourth fixing plate 24 are simultaneously rotated relative to the fixed base 10.

[0105] Please refer to Figure 11 , Figure 11 is Figure 6 the structure diagram of the first clamping piece 31 and the second clamping piece 32 in the rotating mechanism 100 shown in FIG. 1.

[0106] The clamping piece 30 comprises a first clamping piece 31 and a second clamping piece 32. The first clamping piece 31 comprises a first clamping body 311 and a first elastic body 312. In the embodiment, the first elastic body 312 is a spring. In other embodiments, the first elastic body 312 can also be made of other elastic materials. The first clamping body 311 comprises a first column body 313 and a first abutting block 314. The first column body 313 comprises a first clamping end 3131 and a first free end 3132, and the first clamping end 3131 and the first free end 3132 are oppositely arranged. In the embodiment, the first clamping end 3131 is arc-shaped, so as to facilitate the first clamping end 3131 to slide into the first clamping groove 711 (as shown in FIG. 1). In other embodiments, the first clamping end 3131 can also be square, rhombic, or other shapes. The first abutting block 314 is located at the outer periphery of the first column body 313 and between the first clamping end 3131 and the first free end 3132, and the first abutting block 314 is fixedly connected with the first column body 313. In the embodiment, the first abutting block 314 and the first column body 313 are integrally formed. In other embodiments, the first abutting block 314 and the first column body 313 can also be fixedly connected by welding or other connection methods. Figure 13

[0107] ​The first elastic body 312 is sleeved on the outer periphery of the first column body 313, the first free end 3132 is located inside the first elastic body 312, the first clamping end 3131 and the first abutting block 314 are located outside the first elastic body 312, and the first abutting block 314 abuts one end of the first elastic body 312. The first clamping body 311 can move relative to the first elastic body 312 in the elastic elongation direction of the first elastic body 312.

[0108] The second clamping member 32 has the same structure as the first clamping member 31. The second clamping member 32 comprises a second clamping body 321 and a second elastic body 322. The second clamping body 321 comprises a second column body 323 and a second abutting block 324. The second column body 323 comprises a second clamping end 3231 and a second free end 3232, and the second clamping end 3231 and the second free end 3232 are oppositely arranged. The second abutting block 324 is located on the outer periphery of the second column body 323 and between the second clamping end 3231 and the second free end 3232, and the second abutting block 324 is fixedly connected with the second column body 323. The second elastic body 322 is sleeved on the outer periphery of the second column body 323, the second free end 3232 is located inside the second elastic body 322, the second clamping end 3231 and the second abutting block 324 are located outside the second elastic body 322, and the second abutting block 324 abuts one end of the second elastic body 322. The second clamping body 321 can move relative to the second elastic body 322 in the elastic elongation direction of the second elastic body 322.

[0109] Please refer to Figure 12 , Figure 12 is Figure 5 the partial structure diagram of the rotating mechanism 100 shown in FIG. 1.

[0110] The clamping member 30 is installed on the fixed plate 20. Specifically, the first clamping member 31 is installed in the first receiving groove 216 of the first fixed plate 21, and one end of the first elastic body 312 away from the first abutting block 314 is fixedly connected with the inner wall of the first receiving groove 216, and the first clamping end 3131 faces the second sliding groove 215. The elastic elongation direction of the first elastic body 312 is parallel to the length direction of the first fixed plate 21, that is, the elastic elongation direction of the first elastic body 312 is parallel to the Y direction. When the first clamping end 3131 is subjected to an abutting force in the direction towards the first elastic body 312, the first elastic body 312 can be compressed through the first abutting block 314, so that the first elastic body 312 is in a compressed state. When the abutting force of the first clamping end 3131 is released, the first elastic body 312 is elastically elongated and drives the first clamping end 3131 to move towards the direction close to the second sliding groove 215 through the abutting block 314, thereby realizing the movement of the first clamping body 311 in the Y direction.

[0111] In the embodiment, the first clamping member 31 is arranged on the first fixed plate 21, and when the rotating mechanism 100 is in the folded state, the first clamping member 31 abuts against the first synchronous swing body 71 and generates an elastic force. When the rotating mechanism 100 is rotated to the unfolded state, the elastic force of the first clamping member 31 is released, so that the first clamping member 31 clamps the first synchronous swing body 71. That is, when the rotating mechanism 100 is rotated to the unfolded state, the force acting on the first fixed plate 21 changes suddenly, and the user can obtain a feedback in the sense of touch, so that the rotating mechanism 100 can be prevented from being continuously rotated after being rotated to the unfolded state, the display screen 300 can be prevented from being damaged, and the user experience can be improved.

[0112] The second clamping member 32 is installed in the second receiving groove 226, and one end of the second elastic body 322 away from the second abutting block 324 is fixedly connected with the inner wall of the second receiving groove 226. The second clamping end 3231 faces the fourth sliding groove 225. The elastic elongation direction of the second elastic body 322 is parallel to the length direction of the second fixed plate 22, that is, the elastic elongation direction of the second elastic body 322 is parallel to the Y direction. When the second clamping end 3231 is subjected to an abutting force in the direction of the second elastic body 322, the second elastic body 322 can be compressed by the second abutting block 324, so that the second elastic body 322 is in a compressed state. When the abutting force of the second clamping end 3231 is released, the second elastic body 322 is elastically elongated, and the second clamping end 3231 is driven by the abutting block 324 to move toward the fourth sliding groove 225, so as to realize the movement of the second clamping body 321 in the Y direction.

[0113] In the embodiment, the second clamping member 32 is arranged on the second fixed plate 22, and when the rotating mechanism 100 is in the folded state, the second clamping member 32 abuts against the second synchronous swing body 72 and generates an elastic force. When the rotating mechanism 100 is rotated to the unfolded state, the elastic force of the second clamping member 32 is released, so that the second clamping member 32 clamps the second synchronous swing body 72. That is, when the rotating mechanism 100 is rotated to the unfolded state, the force acting on the second fixed plate 22 changes suddenly, and the user can obtain a feedback in the sense of touch, so that the rotating mechanism 100 can be further prevented from being continuously rotated after being rotated to the unfolded state, the display screen 300 can be prevented from being damaged, and the user experience can be further improved.

[0114] Please refer to Figure 6 , the clamping member 30 further includes a third clamping member and a fourth clamping member (not shown in the figure). The third clamping member has the same structure as the second clamping member 32, and the third clamping member is installed in the third fixed plate 23. The fourth clamping member has the same structure as the first clamping member 31, and the fourth clamping member is installed in the fourth fixed plate 24.

[0115] Please refer to Figure 13 , Figure 13 isFigure 5 Fig. 2 is a schematic view of a part of the rotating mechanism 100 shown in Fig. 1.

[0116] The synchronous swing arm 70 comprises a first synchronous swing body 71, a second synchronous swing body 72 and a synchronous gear 73. The synchronous gear 73 comprises a first gear 731, a second gear 732 and an intermediate gear 733. The first gear 731, the intermediate gear 733 and the second gear 732 are arranged side by side, and the intermediate gear 733 is located between the first gear 731 and the second gear 732 and engages with the first gear 731 and the second gear 732. In the present embodiment, the intermediate gear 733 is two. In other embodiments, the intermediate gear 733 can also be one, or three, or more than three.

[0117] The first synchronous swing body 71 comprises a first abutting surface 712. The first abutting surface 712 is one side surface of the first synchronous swing body 71. The first synchronous swing body 71 is provided with a first clamping groove 711, which is recessed in the first abutting surface 712, and the structure of the first clamping groove 711 is matched with that of the first clamping end 3131. Here, the "matched" means that the first clamping end 3131 can be clamped in the first clamping groove 711. The first clamping groove 711 comprises a first side surface 7111. In the present embodiment, the first side surface 7111 is connected with the first abutting surface 712. In the present embodiment, the first side surface 7111 is a circular arc, and the first side surface 7111 and the first abutting surface 712 are connected through a chamfer, so as to facilitate the first clamping piece 31 to slide into the first clamping groove 711 through the first side surface 7111. One end of the first synchronous swing body 71 is fixedly connected with the first gear 731.

[0118] The structure of the second synchronous swing body 72 is the same as that of the first synchronous swing body 71. The second synchronous swing body 72 comprises a second abutting surface 722, and the second synchronous swing body 72 is provided with a second clamping groove 721, which comprises a second side surface 7211. The structure of the second abutting surface 722 is the same as that of the first abutting surface 712, and the structure of the second clamping groove 721 is the same as that of the first clamping groove 711. One end of the second synchronous swing body 72 is fixedly connected with the second gear 732.

[0119] Please refer to Figures 12 to 14 , Figure 14 is Figure 5 Fig. 2 is a schematic view of a part of the rotating mechanism 100 shown in Fig. 1.

[0120] The synchronous swing arm 70 is mounted on the fixed base 10. The synchronous gear 73 is located in the fixed base 10, and the first synchronous swing body 71 and the second synchronous swing body 72 are located on opposite sides of the fixed base 10 in the X direction. The first synchronous swing body 71 extends into the second sliding groove 215 of the first fixed plate 21 from one end away from the first gear 731, and is in sliding connection with the first fixed plate 21, and the first abutting surface 712 and the first clamping groove 711 are towards the first clamping end 3131 of the first clamping body 311. The second synchronous swing body 72 extends into the fourth sliding groove 225 of the second fixed plate 22 from one end away from the second gear 732, and is in sliding connection with the second fixed plate 22, and the second abutting surface 722 and the second clamping groove 721 are towards the second clamping end 3231 of the second clamping body 321.

[0121] Please see Figure 15 and Figure 16 , Figure 15 is Figure 5 the partial cross-sectional view of the rotating mechanism 100 in the folded state, Figure 16 is Figure 5 the partial cross-sectional view of the rotating mechanism 100 in the unfolded state.

[0122] As Figure 15 shown, when the rotating mechanism 100 is in the folded state, the first fixed plate 21 and the second fixed plate 22 are folded relative to each other, the first clamping end 3131 of the first clamping body 311 abuts against the first abutting surface 712 and is arranged in a staggered manner with the first clamping groove 711. When the first clamping end 3131 is subjected to an abutting force in the direction of the first elastic body 312, the first abutting block 314 abuts against the first elastic body 312 and compresses the first elastic body 312, so that the first elastic body 312 is in a compressed state. The second clamping end 3231 of the second clamping body 321 abuts against the second abutting surface 722 and is arranged in a staggered manner with the second clamping groove 721. When the second clamping end 3231 is subjected to an abutting force in the direction of the second elastic body 322, the second abutting block 324 abuts against the second elastic body 322 and compresses the second elastic body 322, so that the second elastic body 322 is in a compressed state.

[0123] When the first fixed plate 21 rotates relative to the fixed base 10 in the direction away from the fixed base 10, that is, when the first fixed plate 21 rotates counterclockwise ω1, the first synchronous swing body 71 is driven to rotate counterclockwise ω1. At the same time, the first synchronous swing body 71 slides in the second sliding groove 215, and the first fixed plate 21 slides relative to the first synchronous swing body 71 in the direction close to the fixed base 10. That is, the first clamping end 3131 moves along the first abutting surface 712 in the direction close to the first clamping groove 711.

[0124] As Figure 16As shown, when the first fixed plate 21 rotates to unfold relative to the fixed base 10, the first clamping end 3131 slides along the first side surface 7111 to be opposite to the first clamping groove 711. The resisting force on the first clamping end 3131 is released, the first elastic body 312 is elastically stretched, the first resisting block 314 is moved towards the first clamping groove 711, thereby moving the first clamping end 3131 towards the first clamping groove 711, and the first clamping end 3131 is clamped in the first clamping groove 711.

[0125] Moreover, when the first synchronous swing body 71 rotates counterclockwise ω1, the first gear 731 is driven to rotate, thereby driving the intermediate gear 733 to rotate, and further driving the second gear 732 to rotate. The rotation of the second gear 732 can drive the second synchronous swing body 72 to rotate clockwise ω2, thereby driving the second fixed plate 22 to rotate clockwise ω2 relative to the fixed base 10. Meanwhile, the second synchronous swing body 72 slides in the fourth sliding groove 225, and the second fixed plate 22 slides towards the fixed base 10 relative to the second synchronous swing body 72. That is, the second clamping end 3231 moves towards the second clamping groove 721 along the second resisting surface 722. When the second fixed plate 22 rotates to unfold relative to the fixed base 10, the first clamping end 3131 slides along the first side surface 7111 to be opposite to the second clamping groove 721. The resisting force on the second clamping end 3231 is released, the second elastic body 322 is elastically stretched, the second resisting block 324 is moved towards the second clamping groove 721, thereby moving the second clamping end 3231 towards the second clamping groove 721, and the second clamping end 3231 is clamped in the second clamping groove 721, so as to unfold the first fixed plate 21 and the second fixed plate 22 relative to the fixed base 10.

[0126] In this embodiment, the first clamping groove 711 is arranged on the first synchronous swing body 71, and the second clamping groove 721 is arranged on the second synchronous swing body 72. Moreover, when the rotating mechanism 100 is in the folded state, the first clamping piece 31 resists the first synchronous swing body 71 and generates elastic force, and the second clamping piece 32 resists the second synchronous swing body 72 and generates elastic force. When the rotating mechanism 100 rotates to the unfolded state, the elastic force of the first clamping piece 31 is released, so that the first clamping piece 31 clamps the first synchronous swing body 71. At this time, the acting force on the first fixed plate 21 changes abruptly. The elastic force of the second clamping piece 32 is released, so that the second clamping piece 32 clamps the second synchronous swing body 72. At this time, the acting force on the first fixed plate 21 and the second fixed plate 22 changes abruptly, and the user can obtain feedback in hand feeling, thereby avoiding the rotating mechanism 100 from continuing to rotate after rotating to the unfolded state, and causing damage to the display screen 300.

[0127] Please refer to Figure 13The rotating mechanism 100 further comprises a damping member 2. In the embodiment, the damping member 2 is composed of a plurality of damping pieces which are stacked. The damping member 2 is located in the fixed base 10 and is sleeved on the side of the synchronous gear 73, and the synchronous gear 73 can rotate relative to the damping member 2. When the synchronous gear 73 rotates, there is damping force between the synchronous gear 73 and the damping member 2, so as to improve the opening and closing feeling of the rotating mechanism 100 and improve the user experience.

[0128] Please refer to Figure 17 , Figure 17 is Figure 6 the structure diagram of the first pressing plate 41 and the second pressing plate 42 in the rotating mechanism 100 shown in FIG. 1.

[0129] The pressing plate 40 comprises a first pressing plate 41 and a second pressing plate 42. The first pressing plate 41 and the second pressing plate 42 are of the same structure. The first pressing plate 41 and the second pressing plate 42 are respectively located on opposite sides of the fixed base 10 in the X direction, and the first pressing plate 41 and the second pressing plate 42 are of symmetrical structure. In the embodiment, the size of the first pressing plate 41 and the second pressing plate 42 in the Y direction is the same as the size of the display screen 300 in the Y direction. Of course, a small deviation is also allowed.

[0130] The first pressing plate 41 comprises a first body 411, a first sliding block 412 and a third sliding block 413. The first body 411 is rectangular. The first body 411 comprises a first side 4111 and a second side 4112, which are oppositely arranged and respectively located on opposite sides of the first body 411 in the X direction. The first body 411 is provided with a first pressing plate sliding groove 414 which penetrates the first body 411 in the width direction of the first body 411. The first pressing plate sliding groove 414 is used for sliding connection with the pressing plate swing arm 80.

[0131] The first slider 412 and the third slider 413 are both arc-shaped. The first slider 412 and the third slider 413 are both located on the first side 4111 and fixedly connected with the first body 411. In the embodiment, the first slider 412, the third slider 413 and the first body 411 are in an integral molding structure. In other embodiments, the first slider 412 and the third slider 413 can be fixedly connected with the first body 411 by welding, bonding or other connection methods. The first slider 412 is two, and the two first sliders 412 are arranged at intervals along the length direction of the first side 4111, and the positions of the two first sliders 412 match the positions of the two first guide grooves 213. Each first slider 412 extends in an arc shape from the first side 4111 to the direction away from the first body 411, and the outer surface of the first slider 412 is curved towards the direction close to the first body 411. The third slider 413 is two. The structure of the third slider 413 is the same as that of the first slider 412. The third slider 413 is located at one end of the first body 411 away from the first slider 412. The positions of the two third sliders 413 match the position of the third fixed plate 23.

[0132] Please refer to Figure 6 and Figure 18 , Figure 18 are Figure 5 part structure schematic diagram of the rotating mechanism 100 shown in FIG. 1.

[0133] The first pressing plate 41 is stacked with the first fixed plate 21 and the third fixed plate 23. The first side 4111 has the same direction as the first side 2113 of the first fixed plate 21, one first slider 412 is installed in one first guide groove 213, and each first slider 412 can slide in the corresponding first guide groove 213. The two third sliders 413 are installed on the third fixed plate 23, and each third slider 413 can slide relative to the third fixed plate 23. At the same time, the first pressing plate 41 is rotationally connected with the fixed base 10 through the pressing plate swing arm 80. When the first fixed plate 21 and the third fixed plate 23 rotate relative to the fixed base 10, the first pressing plate 41 can be driven to rotate relative to the fixed base 10, and at the same time, the first pressing plate 41 is driven to slide in an arc shape relative to the first fixed plate 21 through the first slider 412, and the first pressing plate 41 is driven to slide in an arc shape relative to the third fixed plate 23 through the third slider 413.

[0134] Please refer to Figure 6 and Figure 17The structure of the second pressing plate 42 is the same as that of the first pressing plate 41. The second pressing plate 42 comprises a second body 421, a second slider 422 and a fourth slider 423. The second body 421 comprises a third side 4211 and a fourth side 4212, which are oppositely arranged and respectively located at opposite sides of the second body 421 in the X direction. The structure of the second body 421 is the same as that of the first body 411, the structure of the second slider 422 is the same as that of the first slider 412, and the structure of the fourth slider 423 is the same as that of the third slider 413. The second body 421 is provided with a second pressing plate sliding groove (not marked in the figure), which has the same structure as the first pressing plate sliding groove 414. The second pressing plate sliding groove is used for sliding connection with the pressing plate swing arm 80.

[0135] The second pressing plate 42 is stacked with the second fixed plate 22 and the fourth fixed plate 24. The third side 4211 and the third side surface 2213 have the same orientation, one second slider 422 is installed in one second guide groove 223, and each second slider 422 can slide in the corresponding second guide groove 223. Two fourth sliders 423 are installed on the fourth fixed plate 24, and each second slider 422 can slide relative to the fourth fixed plate 24. At the same time, the second pressing plate 42 is rotationally connected with the fixed base 10 through the pressing plate swing arm 80. The second fixed plate 22 and the fourth fixed plate 24 rotate relative to the fixed base 10, which can drive the second pressing plate 42 to rotate relative to the fixed base 10, and at the same time drive the second pressing plate 42 to slide in an arc shape relative to the second fixed plate 22 through the second slider 422, and drive the second pressing plate 42 to slide in an arc shape relative to the fourth fixed plate 24 through the fourth slider 423.

[0136] The first pressing plate 41 and the second pressing plate 42 are arranged opposite to the display screen 300, and the first pressing plate 41 and the second pressing plate 42 jointly support the display screen 300, so that the stability of the connection of the display screen 300 can be increased, and the good display of the display screen 300 is ensured. In the embodiment, the first pressing plate 41 is driven to rotate through the rotation of the first fixed plate 21 and the third fixed plate 23, and the second pressing plate 42 is driven to rotate through the rotation of the second fixed plate 22 and the fourth fixed plate 24, so that the folding and unfolding of the display screen 300 is realized. In addition, the arc-shaped sliding block is arranged on the first pressing plate 41, and the guide groove is arranged on the first fixed plate 21, so that the sliding connection of the first pressing plate 41 and the first fixed plate 21 is realized, and the first pressing plate 41 can slide in an arc shape relative to the first fixed plate 21. The arc-shaped sliding block is arranged on the second pressing plate 42, and the guide groove is arranged on the second fixed plate 22, so that the sliding connection of the second pressing plate 42 and the second fixed plate 22 is realized, and the second pressing plate 42 can slide in an arc shape relative to the second fixed plate 22. When the first fixed plate 21 and the second fixed plate 22 rotate, the first pressing plate 41 and the second pressing plate 42 rotate relative to each other, and the first pressing plate 41 slides in an arc shape relative to the first fixed plate 21, and the second pressing plate 42 slides in an arc shape relative to the second fixed plate 22, so that the included angle between the first pressing plate 41 and the second pressing plate 42 can be adjusted, and then the folding angle of the foldable part 330 of the display screen 300 can be adapted.

[0137] Please refer to Figure 19 , Figure 19 is Figure 6 the enlarged structural schematic view of the first main swing arm 51 and the second main swing arm 52 in the rotating mechanism 100 shown in FIG. 1.

[0138] The main swing arm 50 includes the first main swing arm 51 and the second main swing arm 52. The first main swing arm 51 includes a first rotating body 511, a first swing body 512 and a first rotating shaft 513. The first rotating body 511 is a circular arc plate structure, and the structure of the first rotating body 511 is matched with the structure of the first rotating groove 101. The first swing body 512 is a planar plate. One end of the first swing body 512 is fixedly connected with the first rotating body 511, and the other end is fixedly connected with the first rotating shaft 513. The axis direction of the first rotating shaft 513 is parallel to the Y direction. The first main swing arm 51 is used for being rotatably connected with the fixed base 10 and being rotatably connected with the first fixed plate 21.

[0139] The second main swing arm 52 has the same structure as the first main swing arm 51. The second main swing arm 52 includes a second rotating body 521, a second swing body 522 and a second rotating shaft 523. The structure of the second rotating body 521 is the same as that of the first rotating body 511, the structure of the second swing body 522 is the same as that of the first swing body 512, and the structure of the second rotating shaft 523 is the same as that of the first rotating shaft 513. The second main swing arm 52 is used for being rotatably connected with the fixed base 10 and being rotatably connected with the second fixed plate 22.

[0140] Please refer to Figure 20 , Figure 20 is Figure 6 the enlarged structural schematic view of the first auxiliary swing arm 61 and the second auxiliary swing arm 62 in the rotating mechanism 100.

[0141] The auxiliary swing arm 60 includes the first auxiliary swing arm 61 and the second auxiliary swing arm 62. The first auxiliary swing arm 61 includes a first auxiliary shaft seat 611 and a first auxiliary swing body 612. The first auxiliary swing body 612 is in a plate structure. The first auxiliary shaft seat 611 is fixedly connected with the first auxiliary swing body 612, and the axial extension direction of the first auxiliary shaft seat 611 is parallel to the Y direction. In the embodiment, the first auxiliary swing body 612 and the first auxiliary shaft seat 611 are an integral molded part. The first auxiliary swing arm 61 is used for being rotatably connected with the fixed base 10 and being slidably connected with the first fixed plate 21.

[0142] The second auxiliary swing arm 62 is the same as the first auxiliary swing arm 61 in structure. The second auxiliary swing arm 62 includes a second auxiliary shaft seat 621 and a second auxiliary swing body 622. The structure of the second auxiliary shaft seat 621 is the same as that of the first auxiliary shaft seat 611, and the structure of the second auxiliary swing body 622 is the same as that of the first auxiliary swing body 612. The second auxiliary swing arm 62 is used for being rotatably connected with the fixed base 10 and being slidably connected with the second fixed plate 22.

[0143] Please refer to Figure 14 , the first main swing arm 51 and the second main swing arm 52 are respectively located on the opposite sides of the fixed base 10 in the X direction and are rotatably connected with the fixed base 10. In the embodiment, the first main swing arm 51 and the second main swing arm 52 are staggered in the Y direction. In other embodiments, the first main swing arm 51 and the second main swing arm 52 can also be arranged side by side along the X direction.

[0144] The first rotating body 511 of the first main swing arm 51 extends into the fixed base 10 from the first opening 103, the first rotating body 511 is installed in the first rotating groove 101, and the first rotating body 511 can slide and rotate in the first rotating groove 101. The first rotating shaft 513 is installed in the first shaft sleeve 212 of the first fixed plate 21, and the first rotating shaft 513 can rotate in the first shaft sleeve 212. The second rotating body 521 of the second main swing arm 52 extends into the fixed base 10 from the second opening 104, the second rotating body 521 is installed in the second rotating groove 102, and the second rotating body 521 can slide and rotate in the second rotating groove 102. The second rotating shaft 523 is installed in the second shaft sleeve 222 of the second fixed plate 22, and the second rotating shaft 523 can rotate in the second shaft sleeve 222.

[0145] The first and second auxiliary swing arms 61 and 62 are respectively located on opposite sides of the fixed base 10 in the X direction and are rotationally connected with the fixed base 10. The first auxiliary swing arm 61 and the first main swing arm 51 are arranged at intervals in the Y direction, and the second auxiliary swing arm 62 and the second main swing arm 52 are arranged at intervals in the Y direction. The first auxiliary shaft seat 611 is located in the first mounting groove 105 and is rotationally connected with the fixed base 10 through a rotating shaft. The first auxiliary swing body 612, with one end thereof facing away from the first auxiliary shaft seat 611, extends into the first sliding groove 214 and is slidable in the first sliding groove 214, so that the first auxiliary swing arm 61 is slidingly connected with the first fixed plate 21. The second auxiliary shaft seat 621 is located in the second mounting groove 106 and is rotationally connected with the fixed base 10 through a rotating shaft. The second auxiliary swing body 622, with one end thereof facing away from the second auxiliary shaft seat 621, extends into the third sliding groove 224 and is slidable in the third sliding groove 224, so that the second auxiliary swing arm 62 is slidingly connected with the second fixed plate 22.

[0146] When the rotating mechanism 100 is in the unfolded state, the first and second fixed plates 21 and 22 are unfolded relative to the fixed base 10. The first and second main swing arms 51 and 52 are unfolded relative to the fixed base 10. The end portions of the first and second main swing arms 51 and 52 jointly abut the floating plate 1, the floating plate 1 pulls the elastic member 17, and the elastic member 17 is in a stretched state. The floating plate 1 is used to support the bendable portion of the display screen 300. The first fixed plate 21 drives the first main swing arm 51 and the first auxiliary swing arm 61 to simultaneously rotate clockwise ω2, the first auxiliary shaft seat 611 rotates clockwise ω2, and at the same time, the first auxiliary swing body 612 slides in the first sliding groove 214. The first rotating body 511 rotates clockwise ω2 in the first rotating groove 101, and the end portion of the first rotating body 511 releases the floating plate 1. The second fixed plate 22 drives the second main swing arm 52 and the second auxiliary swing arm 62 to rotate counterclockwise ω1, the second auxiliary shaft seat 621 rotates counterclockwise ω1, and at the same time, the second auxiliary swing body 622 slides in the third sliding groove 224. The second rotating body 521 rotates counterclockwise ω1 in the second rotating groove 102, and the end portion of the second rotating body 521 releases the floating plate 1. The elastic member 17 elastically retracts to a natural state, drives the floating plate 1 to move towards the fixed base 10, so that the rotating mechanism 100 is in the folded state. Of course, when the rotating mechanism 100 is in the folded state, the gravitational force of the floating plate 1 can also cause the elastic member 17 to be in a compressed state.

[0147] The first fixed plate 21 and the second fixed plate 22 rotate towards the direction away from each other, the first fixed plate 21 drives the first main swing arm 51 and the first auxiliary swing arm 61 to rotate counterclockwise ω1 at the same time. The first auxiliary shaft seat 611 rotates counterclockwise ω1, at the same time, the first auxiliary swing body 612 slides in the first sliding groove 214. The first rotating body 511 rotates counterclockwise ω1 in the fixed base 10, and the end of the first rotating body 511 abuts against the floating plate 1. The second fixed plate 22 drives the second main swing arm 52 and the second auxiliary swing arm 62 to rotate clockwise ω2, the second auxiliary shaft seat 621 rotates clockwise ω2, at the same time, the second auxiliary swing body 622 slides in the third sliding groove 224. The second rotating body 521 rotates clockwise ω2 in the fixed base 10, and the end of the second rotating body 521 abuts against the floating plate 1, the floating plate 1 moves towards the direction away from the fixed base 10, and stretches the elastic member 17, so that the elastic member is in a stretched state, so that the rotating mechanism 100 is in an unfolded state.

[0148] In the embodiment, by setting the first main swing arm 51 and the second main swing arm 52, the rotation of the first fixed plate 21 and the second fixed plate 22 relative to the fixed base 10 is realized. And, by the first main swing arm 51 and the second main swing arm 52 abutting or releasing the floating plate 1, the movement of the floating plate 1 in the Z direction is realized, so that when the rotating mechanism 100 is in the folded state, the floating plate 1 can sink to form an avoiding space, so as to avoid the foldable part 330 of the display screen 300, so as to avoid extrusion to the display screen 300.

[0149] At the same time, by setting the first auxiliary swing arm 61, when the first fixed plate 21 rotates relative to the fixed base 10, the first auxiliary swing arm 61 is driven to rotate together with the first main swing arm 51, so as to realize the rotation of the first fixed plate 21 relative to the fixed base 10, so as to increase the stability of the rotation of the first fixed plate 21. By setting the second auxiliary swing arm 62, when the second fixed plate 22 rotates relative to the fixed base 10, the second auxiliary swing arm 62 is driven to rotate together with the second main swing arm 52, so as to realize the rotation of the second fixed plate 22 relative to the fixed base 10, so as to increase the stability of the rotation of the second fixed plate 22.

[0150] Please see Figure 6The main swing arm 50 further comprises a third main swing arm 53 and a fourth main swing arm 54, which have the same structure as the first main swing arm 51 and the second main swing arm 52. The third main swing arm 53 is centrally symmetrical to the second main swing arm 52 about the central axis O, and the fourth main swing arm 54 is centrally symmetrical to the first main swing arm 51 about the central axis O. The third main swing arm 53 and the fourth main swing arm 54 are both installed on the fixed base 10 and can rotate relative to the fixed base 10. The third main swing arm 53 is rotationally connected to the third fixed plate 23, and the third fixed plate 23 drives the third main swing arm 53 to rotate relative to the fixed base 10 when the third fixed plate 23 rotates. The fourth main swing arm 54 is rotationally connected to the fourth fixed plate 24, and the fourth fixed plate 24 drives the fourth main swing arm 54 to rotate relative to the fixed base 10 when the fourth fixed plate 24 rotates.

[0151] The auxiliary swing arm 60 further comprises a third auxiliary swing arm 63 and a fourth auxiliary swing arm 64. The third auxiliary swing arm 63 and the fourth auxiliary swing arm 64 have the same structure as the first auxiliary swing arm 61 and the second auxiliary swing arm 62. The third auxiliary swing arm 63 is centrally symmetrical to the second auxiliary swing arm 62 about the central axis O, and the fourth auxiliary swing arm 64 is centrally symmetrical to the first auxiliary swing arm 61 about the central axis O. The third auxiliary swing arm 63 and the fourth auxiliary swing arm 64 are both installed on the fixed base 10, and the third auxiliary swing arm 63 is slidingly connected to the third fixed plate 23, and the fourth auxiliary swing arm 64 is slidingly connected to the fourth fixed plate 24.

[0152] Please refer to Figure 21 , Figure 21 is Figure 6 a structural schematic view of the first pressure plate swing arm 81 and the second pressure plate swing arm 82 in the rotating mechanism shown in FIG. 8.

[0153] The pressure plate swing arm 80 comprises a first pressure plate swing arm 81 and a second pressure plate swing arm 82. In this embodiment, the first pressure plate swing arm 81 is three. In other embodiments, the first pressure plate swing arm 81 can also be two, four or more than four, as long as the number of the first pressure plate swing arm 81 is the same as the number of the first pressure plate sliding groove 414. Each first pressure plate swing arm 81 comprises a first shaft seat 811 and a first pressure plate swing body 812, and the first shaft seat 811 is fixedly connected to the first pressure plate swing body 812. The axis extension direction of the first shaft seat 811 is parallel to the Y direction.

[0154] The second pressure plate swing arm 82 has the same structure as the first pressure plate swing arm 81. The second pressure plate swing arm 82 comprises a second shaft seat 821 and a second pressure plate swing body 822, and the second shaft seat 821 is fixedly connected to the second pressure plate swing body 822. The axis extension direction of the second shaft seat 821 is parallel to the Y direction.

[0155] Please refer to Figure 22 , Figure 22 is Figure 5A partial structural schematic view of the rotating mechanism 100 shown in FIG. 1.

[0156] The first and second pressing plate swing arms 81 and 82 are respectively located on opposite sides of the fixed base 10 in the X direction, and the first and second pressing plate swing arms 81 and 82 are symmetrically arranged. The first shaft seat 811 of each first pressing plate swing arm 81 is rotationally connected with the fixed base 10, and the first shaft seat 811 can rotate around the fixed base 10. In this embodiment, a rotating shaft is arranged on the fixed base 10, and the first shaft seat 811 is sleeved on the rotating shaft to realize the rotational connection between the first pressing plate swing arm 81 and the fixed base 10. One end of a first pressing plate swing body 812 away from the first shaft seat 811 is mounted in a first pressing plate sliding groove 414, and each first pressing plate swing body 812 can slide in the corresponding first pressing plate sliding groove 414. When the first pressing plate 41 rotates, the first pressing plate swing body 812 is driven to rotate, thereby driving the first shaft seat 811 to rotate relative to the fixed base 10, and further realizing the rotation of the first pressing plate 41 and the first pressing plate swing arm 81 relative to the fixed base 10.

[0157] In this embodiment, the first pressing plate swing arm 81 is arranged, and the first pressing plate 41 drives the first pressing plate swing arm 81 to rotate, thereby realizing the rotation of the first pressing plate 41 relative to the fixed base 10, and further improving the stability of the rotation of the first pressing plate 41. In this embodiment, a plurality of first pressing plate swing arms 81 are arranged, and the plurality of first pressing plate swing arms 81 jointly drive the first pressing plate 41 to rotate, thereby further improving the stability of the rotation of the first pressing plate 41.

[0158] When the second pressing plate 42 rotates, the second pressing plate swing body 822 is driven to rotate, thereby driving the second shaft seat 821 to rotate relative to the fixed base 10, and further realizing the rotation of the second pressing plate 42 and the second pressing plate swing arm 82 relative to the fixed base 10. In this embodiment, the second pressing plate swing arm 82 is arranged, and the second pressing plate 42 drives the second pressing plate swing arm 82 to rotate, thereby realizing the rotation of the second pressing plate 42 relative to the fixed base 10, and further improving the stability of the rotation of the second pressing plate 42. In this embodiment, a plurality of second pressing plate swing arms 82 are arranged, and the plurality of second pressing plate swing arms 82 jointly drive the second pressing plate 42 to rotate, thereby further improving the stability of the rotation of the second pressing plate 42.

[0159] Please refer to Figure 23 and Figure 24 , Figure 23 is Figure 5 a partial structural schematic view of the rotating mechanism 100 shown in FIG. 1 in a folded state, Figure 24 is Figure 1 a structural schematic view of the foldable electronic device 500 shown in FIG. 1 from another angle.

[0160] When the rotating mechanism 100 is in the folded state, the first fixed plate 21 and the second fixed plate 22 are folded relative to each other, the first pressing plate 41 and the second pressing plate 42 are folded relative to each other, the floating plate 1 sinks towards the fixed base 10, and an avoiding space is formed. Among them, the foldable part 330 of the display screen 300 is located on the inner side of the rotating mechanism 100. Part of the foldable part 330 is located between the first pressing plate 41 and the second pressing plate 42, and is spaced apart from the first pressing plate 41 and the second pressing plate 42. Part of the foldable part 330 is opposite to the floating plate 1 and located in the avoiding space. At the same time, there is a gap between the display screen 300 and the floating plate 1, so as to avoid extrusion between the display screen 300 and the floating plate 1 and damage to the display screen 300, and also to avoid damage to the display screen 300 caused by the floating plate 1 colliding with the display screen 300 in the reliability test.

[0161] The first fixed plate 21 is counterclockwise ω1 rotated, the first main swing arm 51 and the first auxiliary swing arm 61 are counterclockwise ω1 rotated, the first rotating body 511 slides in the first rotating groove 101 towards the fixed base 10, the end of the first rotating body 511 abuts against the floating plate 1, the elastic member 17 is stretched, and the floating plate 1 is moved along the positive direction of the Z axis. The first auxiliary swing arm 61 is counterclockwise ω1 rotated while sliding relative to the first fixed plate 21. At the same time, the first fixed plate 21 is rotated to drive the first pressing plate 41 to rotate counterclockwise ω1, and the first pressing plate 41 slides relative to the first fixed plate 21. The first pressing plate 41 drives the first pressing plate swing arm 81 to rotate counterclockwise ω1 during the counterclockwise ω1 rotation of the first pressing plate 41, so as to realize the counterclockwise ω1 rotation of the first pressing plate 41 relative to the fixed base 10. In addition, the counterclockwise ω1 rotation of the first fixed plate 21 drives the first synchronous swing body 71 of the synchronous swing arm 70 to rotate counterclockwise ω1, and the first synchronous swing body 71 slides in the second sliding groove 215. That is, the first clamping end 3131 of the first clamping body 311 moves towards the first clamping end 3131 of the first clamping body 311, and the first clamping end 3131 is located in the first clamping end 3131, so as to make the first fixed plate 21 relative to the fixed base 10 unfolded.

[0162] When the first synchronous swing body 71 is counterclockwise ω1 rotated, the second synchronous swing body 72 is driven by the synchronous gear 73 to rotate clockwise ω2, so as to drive the second fixed plate 22 to rotate clockwise ω2. That is, the second clamping end 3231 of the second clamping body 321 moves towards the second clamping end 3231 of the second clamping body 321, and the second clamping end 3231 is located in the second clamping end 3231, so as to make the second fixed plate 22 relative to the fixed base 10 unfolded.

[0163] When the second fixed plate 22 rotates clockwise ω2, the second main swing arm 52 and the second auxiliary swing arm 62 are also driven to rotate clockwise ω2, the second rotating body 521 slides in the second rotating groove 102 towards the fixed base 10, and the end of the second rotating body 521 and the end of the first rotating body 511 jointly abut the floating plate 1, and the elastic member 17 is stretched. The second auxiliary swing arm 62 rotates clockwise ω2 while sliding relative to the second fixed plate 22. At the same time, the second fixed plate 22 also drives the second pressing plate 42 to rotate clockwise ω2, and the second pressing plate 42 slides relative to the second fixed plate 22. The second pressing plate 42 drives the second pressing plate swing arm 82 to rotate clockwise ω2 during the clockwise ω2 rotation, so as to realize the clockwise ω2 rotation of the second pressing plate 42 relative to the fixed base 10, so as to rotate the rotating mechanism 100 to the unfolded state (as shown in Figure 5

[0164] Please refer to Figure 5 When the foldable electronic device 500 is in the unfolded state, the first fixed plate 21 and the second fixed plate 22 are parallel to the X direction and unfolded relative to the fixed base 10. The first pressing plate 41 and the second pressing plate 42 are parallel to the X direction and unfolded relative to the fixed base 10. The first rotating body 511 and the second rotating body 521 are located in the fixed base 10, and the ends of the first rotating body and the second rotating body 521 abut the floating plate 1, the elastic member 17 is stretched and is in a stretched state. The first clamping end 3131 of the first clamping member 31 is located in the first clamping groove 711 of the first synchronous swing body 71, and the second clamping end 3231 of the second clamping member 32 is located in the second clamping groove 721 of the second synchronous swing body 72. Moreover, the first pressing plate 41, the second pressing plate 42 and the floating plate 1 jointly support the display screen 300.

[0165] In this embodiment, by arranging the first clamping groove 711 in the first synchronous swing body 71 and the second clamping groove 721 in the second synchronous swing body 72, when the first fixed plate 21 and the second fixed plate 22 are unfolded relative to the fixed base 10 to the unfolded state, the first clamping body 311 moves and clamps in the first clamping groove 711, and the second clamping body 321 moves and clamps in the second clamping groove 721, so as to provide feedback to the user, avoid the rotating mechanism 100 from continuing to rotate after rotating to the unfolded state, and thus damage the display screen 300.

[0166] ​The first fixed plate 21 rotates clockwise ω2, driving the first main swing arm 51 and the first auxiliary swing arm 61 to rotate clockwise ω2, the first rotating body 511 slides in the first rotating groove 101 towards the direction away from the fixed base 10, releasing the end of the first rotating body 511 from the floating plate 1. The first auxiliary swing arm 61 slides relative to the first fixed plate 21 while rotating clockwise ω2. Meanwhile, the first fixed plate 21 also drives the first pressing plate 41 to rotate clockwise ω2, and makes the first pressing plate 41 slide relative to the first fixed plate 21. The first pressing plate 41 drives the first pressing plate swing arm 81 to rotate clockwise ω2 during the clockwise ω2 rotation, so as to realize the clockwise ω2 rotation of the first pressing plate 41 relative to the fixed base 10. Moreover, the clockwise ω2 rotation of the first fixed plate 21 also drives the first synchronous swing body 71 of the synchronous swing arm 70 to rotate clockwise ω2, and makes the first synchronous swing body 71 slide in the second sliding groove 215. That is, the first clamping end 3131 of the first clamping body 311 moves away from the first clamping end 3131 of the first clamping body 311, and the first clamping end 3131 is separated from the first clamping end 3131, so as to make the first fixed plate 21 fold relative to the fixed base 10.

[0167] When the first synchronous swing body 71 rotates clockwise ω2, the second synchronous swing body 72 is driven to rotate counterclockwise ω1 through the synchronous gear 73, thereby driving the second fixed plate 22 to rotate counterclockwise ω1. That is, the second clamping end 3231 of the second clamping body 321 moves away from the second clamping end 3231 of the second clamping body 321, and the second clamping end 3231 is separated from the second clamping end 3231, so as to make the second fixed plate 22 fold relative to the fixed base 10.

[0168] When the second fixed plate 22 rotates counterclockwise ω1, the second main swing arm 52 and the second auxiliary swing arm 62 are also driven to rotate counterclockwise ω1, the second rotating body 521 slides in the second rotating groove 102 towards the direction away from the fixed base 10, releasing the end of the second rotating body 521 from the floating plate 1, and the elastic member 17 elastically recovers, driving the floating plate 1 to sink towards the fixed base 10 and forming an avoiding space. The second auxiliary swing arm 62 slides relative to the second fixed plate 22 while rotating counterclockwise ω1. Meanwhile, the second fixed plate 22 also drives the second pressing plate 42 to rotate counterclockwise ω1, and makes the second pressing plate 42 slide relative to the second fixed plate 22. The second pressing plate 42 drives the second pressing plate swing arm 82 to rotate counterclockwise ω1 during the counterclockwise ω1 rotation, so as to realize the counterclockwise ω1 rotation of the second pressing plate 42 relative to the fixed base 10, so as to make the rotating mechanism 100 return to the folded state.

[0169] The above merely describes some embodiments and implementations of the present application, and the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A rotating mechanism, characterized in that: The utility model relates to a rotating mechanism of a folding type, which comprises a fixed base, a synchronous swing arm, a first clamping piece, a first fixed plate, a second fixed plate, a synchronous gear and a damping sheet. The synchronous swing arm comprises a first synchronous swing body and a second synchronous swing body, which are respectively installed on opposite sides of the fixed base in the width direction and are rotationally connected with the fixed base; the synchronous gear is installed in the fixed base and is connected between the first synchronous swing body and the second synchronous swing body. The first fixed plate is slidably connected with the first synchronous swing body, and the first fixed plate can rotate relative to the fixed base; the second fixed plate is slidably connected with the second synchronous swing body, and the second fixed plate can rotate relative to the fixed base; when the first fixed plate rotates relative to the fixed base, the first synchronous swing body can be driven to rotate relative to the fixed base, so as to drive the second synchronous swing body to rotate relative to the fixed base through the synchronous gear, thereby driving the second fixed plate to rotate relative to the fixed base. The number of the damping sheets is multiple, and the multiple damping sheets are stacked; the multiple damping sheets are arranged in the fixed base and located on the side of the synchronous gear and in contact with the synchronous gear. The first clamping piece is installed on the first fixed plate and opposite to the first synchronous swing body, and the first clamping piece can move relative to the first fixed plate. When the first fixed plate and the second fixed plate are folded relative to each other, the first clamping piece abuts against the first synchronous swing body and generates an elastic force; when the first fixed plate and the second fixed plate are unfolded relative to each other, the elastic force of the first clamping piece is released, so that the first clamping piece clamps the first synchronous swing body. The first synchronous swing body comprises a first abutting surface, the length direction of the first abutting surface is parallel to the length direction of the first synchronous swing body, the first abutting surface comprises a first sliding section, and the first sliding section is a plane; the first abutting surface is provided with a first clamping groove, the first clamping groove and the first sliding section are arranged along the length direction of the first abutting surface, and the side wall surface of the first sliding section is connected with the first clamping groove; the first clamping piece comprises a first elastic body and a first clamping body, and the first elastic body is connected with the first clamping body. The rotating mechanism has a folded state and an unfolded state; when the rotating mechanism is in the folded state, the first fixed plate and the second fixed plate are folded relative to each other, the end of the first clamping body abuts against the first sliding section, and the first elastic body is in a compressed state. During the rotation of the rotating mechanism from the folded state to the unfolded state, the first synchronous swing body slides relative to the first fixed plate, and the first clamping body slides along the first sliding section. When the rotating mechanism is in the unfolded state, the end of the first clamping body is located in the first clamping groove, and the rebound force of the first elastic body makes the first clamping body clamped in the first clamping groove. ​ 2. The swivel mechanism of claim 1, wherein The end surface of the first clamping member is an arc surface, and the sidewall of the first clamping groove is connected to the first abutting surface through an arc chamfer.

3. The swivel mechanism of claim 1, wherein The first clamping body comprises a first column and a first abutting block. The first column comprises a first clamping end and a first free end, which are oppositely arranged. The first abutting block is located at the outer periphery of the first column and is fixedly connected to the first column, and the first abutting block protrudes from the outer surface of the first column. The first elastic body is sleeved on the outer surface of the first column and is in contact with the first abutting block, and the first clamping end is directed to the side away from the first elastic body. The first fixed plate is folded relative to the second fixed plate, the first clamping end abuts against the first abutting surface, and the first elastic body is compressed through the first abutting block, so that the first elastic body is in a compressed state. The first fixed plate is unfolded relative to the second fixed plate, the first clamping end slides to the first clamping groove, the first elastic body elastically elongates, and abuts against the first abutting block to drive the first clamping end to be clamped in the first clamping groove through the first abutting block.

4. The swivel mechanism of claim 2, wherein The first clamping body comprises a first column and a first abutting block. The first column comprises a first clamping end and a first free end, which are oppositely arranged. The first abutting block is located at the outer periphery of the first column and is fixedly connected to the first column, and the first abutting block protrudes from the outer surface of the first column. The first elastic body is sleeved on the outer surface of the first column and is in contact with the first abutting block, and the first clamping end is directed to the side away from the first elastic body. The first fixed plate is folded relative to the second fixed plate, the first clamping end abuts against the first abutting surface, and the first elastic body is compressed through the first abutting block, so that the first elastic body is in a compressed state. The first fixed plate is unfolded relative to the second fixed plate, the first clamping end slides to the first clamping groove, the first elastic body elastically elongates, and abuts against the first abutting block to drive the first clamping end to be clamped in the first clamping groove through the first abutting block.

5. The swivel mechanism of claim 1, wherein The rotating mechanism further comprises a second clamping member, which is installed on the second fixed plate and opposite to the second synchronous swinging body. The second fixed plate can rotate relative to the fixed base to drive the second synchronous swinging body to rotate and slide relative to the second fixed plate. The second fixed plate is folded relative to the fixed base, the second clamping member abuts against the second synchronous swinging body and generates an elastic force. The first fixed plate and the second fixed plate are folded relative to each other, the second clamping member abuts against the second synchronous swinging body and generates an elastic force. The first fixed plate and the second fixed plate are unfolded relative to each other, and the elastic force of the second clamping member is released to enable the second clamping member to clamp the second synchronous swinging body.

6. The swivel mechanism of claim 5, wherein, The second synchronous swing body comprises a second abutting surface provided with a second clamping groove, the second clamping member comprises a second elastic body and a second clamping body, the second elastic body is connected with the second clamping body, the first fixed plate is folded relative to the second fixed plate, the end of the second clamping body abuts against the second abutting surface, and the second elastic body is in a compressed state; The first fixed plate is unfolded relative to the second fixed plate, the second synchronous swing body slides relative to the second fixed plate, the second clamping body is driven to slide to the second clamping groove, and the elastic force of the second elastic body enables the second clamping body to be clamped in the second clamping groove.

7. A swivel mechanism according to any one of claims 1 to 6, characterized in that The fixed base is provided with a first rotating groove and a second rotating groove, and the first rotating groove and the second rotating groove are oppositely arranged; the rotating mechanism comprises a first main swing arm and a second main swing arm, the first main swing arm is installed in the first rotating groove and can slide along the first rotating groove, and the first main swing arm is rotationally connected with the first fixed plate; The second main swing arm is installed in the second rotating groove and can slide along the second rotating groove, and the second main swing arm is rotationally connected with the second fixed plate; When the first fixed plate rotates relative to the fixed base, the first main swing arm can be driven to rotate relative to the fixed base; when the second fixed plate rotates relative to the fixed base, the second main swing arm can be driven to rotate relative to the fixed base.

8. The swivel mechanism of claim 7, wherein, The rotating mechanism comprises a first auxiliary swing arm and a second auxiliary swing arm, the first auxiliary swing arm is rotationally connected with the fixed base and is slidingly connected with the first fixed plate, and when the first fixed plate rotates relative to the fixed base, the first auxiliary swing arm can be driven to rotate relative to the fixed base; The second auxiliary swing arm is rotationally connected with the fixed base and is slidingly connected with the second fixed plate, and when the second fixed plate rotates relative to the fixed base, the second auxiliary swing arm can be driven to rotate relative to the fixed base.

9. The swivel mechanism of claim 7, wherein, The rotating mechanism further comprises a first pressing plate and a second pressing plate, the first pressing plate is slidingly connected with the first fixed plate, and when the first fixed plate rotates relative to the fixed base, the first pressing plate can be driven to rotate relative to the fixed base; the second pressing plate is slidingly connected with the second fixed plate, and when the second fixed plate rotates relative to the fixed base, the second pressing plate can be driven to rotate relative to the fixed base.

10. The swivel mechanism of claim 8, wherein, The rotating mechanism further comprises a first pressing plate and a second pressing plate, the first pressing plate is slidingly connected with the first fixed plate, and when the first fixed plate rotates relative to the fixed base, the first pressing plate can be driven to rotate relative to the fixed base; the second pressing plate is slidingly connected with the second fixed plate, and when the second fixed plate rotates relative to the fixed base, the second pressing plate can be driven to rotate relative to the fixed base.

11. A swivel mechanism according to claim 9 or 10, characterized in that The first fixed plate is provided with a first guide groove, the first pressing plate comprises a first sliding block, the first pressing plate and the first fixed plate are stacked, the first sliding block is located in the first guide groove, and the first sliding block can slide along the first guide groove; The second fixed plate is provided with a second guide groove, the second pressing plate comprises a second sliding block, the second pressing plate is arranged in layers with the second fixed plate, the second sliding block is located in the second guide groove, and the second sliding block is slidable along the second guide groove.

12. A swivel mechanism according to claim 9 or 10, characterized in that The rotating mechanism further comprises a first pressing plate swing arm and a second pressing plate swing arm, one end of the first pressing plate swing arm is rotatably connected with the fixed base, the other end is slidably connected with the first pressing plate, and when the first pressing plate rotates relative to the fixed base, the first pressing plate swing arm is driven to rotate relative to the fixed base; one end of the second pressing plate swing arm is rotatably connected with the fixed base, the other end is slidably connected with the second pressing plate, and when the second pressing plate rotates relative to the fixed base, the second pressing plate swing arm is driven to rotate relative to the fixed base.

13. The swivel mechanism of claim 5, wherein, The rotating mechanism comprises a damping member, the damping member is in contact with the synchronous gear, and when the synchronous gear rotates, damping force is generated between the damping member and the synchronous gear.

14. A foldable electronic device, characterized by The rotating mechanism comprises a damping member, the damping member is in contact with the synchronous gear, and when the synchronous gear rotates, damping force is generated between the damping member and the synchronous gear. The rotating mechanism comprises a damping member, the damping member is in contact with the synchronous gear, and when the synchronous gear rotates, damping force is generated between the damping member and the synchronous gear.

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