Torsion mechanism, folding device and intelligent terminal

Abstract

The invention provides a torsion mechanism, a folding device and an intelligent terminal. The torsion mechanism comprises a main shaft assembly, at least one set of connecting rod pieces and at least one damping assembly, and the main shaft assembly comprises at least two main shafts arranged at intervals; the set of connecting rod pieces are arranged on the main shaft, the set of connecting rod pieces comprises two connecting rod pieces which are meshed with each other, and the set of connecting rod pieces rotate relatively on the two sides of the main shaft assembly; the damping assembly elastically abuts against the side face of the connecting rod piece and is in friction fit with the side face of the connecting rod piece, so that the motion torsion of the connecting rod piece is increased. According to the technical scheme, the technical problem that the flexible screen is easy to damage due to the fact that the intelligent terminal is easy to pop off and pull the flexible screen instantly can be solved.

Description

Technical Field

[0001] The present application relates to the technical field of electronic equipment, and in particular to a torque mechanism, a folding device and a smart terminal. Background Art

[0002] With the development of flexible screen technology, large-screen foldable smart terminals have become a technical hotspot for research. Flexible screens usually require support from a folding device and move accordingly with the folding and unfolding of the folding device.

[0003] In the process of conceiving and implementing this application, it was found that in some smart terminals, at least the following problems exist: In some solutions, foldable smart terminals are usually provided with a torsion assembly, which is used to keep the smart terminal stable in the folded state and the unfolded state. The stability of the smart terminal is poor, and there is a problem that the flexible screen is pulled and fails when it is instantly ejected from the folded state.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Summary of the invention

[0005] In response to the above technical problems, the present application provides a torsion mechanism, a folding device and a smart terminal to solve the technical problem that the smart terminal is prone to instantly pop open and pull the flexible screen, causing the flexible screen to be easily damaged.

[0006] In order to solve the above technical problems, the present application provides a torque mechanism, comprising:

[0007] A spindle assembly, the spindle assembly comprising at least two spindles arranged at intervals;

[0008] At least one group of connecting rods, arranged on the main shaft, the group of connecting rods comprising two connecting rods meshing with each other, and the group of connecting rods relatively rotates on both sides of the main shaft assembly;

[0009] At least one damping assembly is elastically abutted against the side surface of the connecting rod and forms a friction fit with the side surface of the connecting rod to increase the torsional force of the movement of the connecting rod.

[0010] The present application provides a torsion mechanism, which is equipped with at least one group of connecting rods and at least one damping assembly. The damping assembly elastically abuts against the side of the connecting rod and forms a friction fit with the side of the connecting rod. When the connecting rod rotates, there is a large friction force between the damping assembly and the side of the connecting rod. The friction force hinders the relative rotation of the connecting rod on both sides of the main shaft assembly, which can increase the rotational torque of the connecting rod, thereby solving the problem of poor stability of the smart terminal, which makes it easy for the smart terminal to instantly pop open from the folded state and pull the flexible screen, causing damage and failure of the flexible screen.

[0011] Optionally, the damping assembly includes at least one gasket, the gasket is arranged on the main shaft, and the gasket abuts against the connecting rod; or;

[0012] The connecting rod members include at least two groups, and the connecting rod members and the washers in each group are arranged at intervals along the axial direction of the main shaft.

[0013] Optionally, the damping assembly further comprises a first elastic member, one end of which abuts against the connecting rod or the gasket; or,

[0014] An anti-slip portion is disposed at the end of the main shaft, and the other end of the first elastic member abuts against the anti-slip portion.

[0015] Optionally, the torsion mechanism further comprises a connecting member, the connecting rod members comprise at least two groups, and at least two connecting rod members located on the same side of the main shaft assembly are connected to the same connecting member.

[0016] Optionally, the connecting rod member includes a gear portion and a connecting rod portion, the gear portion is sleeved on the main shaft, and the connecting rod portion is connected to the connecting member.

[0017] Optionally, the connecting member includes at least one extension arm, at least two first through holes are opened in the connecting rod part, at least two second through holes are opened in the extension arm, and the connecting member also includes at least two connecting shafts, and the connecting shafts are correspondingly passed through a first through hole and a second through hole.

[0018] The present application also provides a folding device, comprising:

[0019] A middle shaft assembly, the middle shaft assembly comprising a middle plate;

[0020] A torsion mechanism, wherein a main shaft assembly of the torsion mechanism is arranged on the middle plate;

[0021] The swing side plates are movably arranged on two opposite sides of the middle plate, and the connecting piece of the torsion mechanism is slidably connected with the swing side plates.

[0022] Optionally, a receiving groove is provided in the swing side plate, and the connecting member is slidably disposed in the receiving groove.

[0023] Optionally, the inner wall of the accommodating groove is provided with a first sliding portion, and the connecting member includes a second sliding portion cooperating with the first sliding portion.

[0024] Optionally, one of the first sliding portion and the second sliding portion is a sliding groove, and the other of the first sliding portion and the second sliding portion is a sliding block.

[0025] Optionally, the folding device further includes a second elastic member, the second elastic member is located in the accommodating groove, and two ends of the second elastic member are respectively abutted against the connecting member and the swing side plate.

[0026] Optionally, a boss is provided on the inner wall of the accommodating groove, a fixing hole is provided at one end of the connecting member facing the boss, one end of the second elastic member is sleeved on the outer wall surface of the boss, and the other end of the second elastic member extends into the fixing hole.

[0027] Optionally, the folding device also includes a support plate, which is arranged on a side of the middle plate facing away from the torsion mechanism, and both side edges of the support plate extend to the swinging side plates respectively, and the support plate blocks the gap between the middle plate and the swinging side plates.

[0028] Optionally, the folding device further includes an auxiliary component, which includes a rotating member; the rotating member is rotatably connected to the middle plate, and the rotating member is movably arranged on the swinging side plate along a first direction.

[0029] Optionally, the auxiliary component further includes a moving member, which is movably disposed on the swing side plate along the second direction, an angle is formed between the first direction and the second direction, and the moving member elastically abuts against the rotating member.

[0030] Optionally, the auxiliary component further includes a third elastic member, two ends of which are respectively abutted against the swing side plate and the moving member, and an elastic compression direction of the third elastic member is consistent with a sliding direction of the moving member.

[0031] Optionally, a side of the rotating member facing the movable member comprises a guiding slope, and the guiding slope is configured to drive the movable member to move away from the rotating member along the second direction when the folding device switches from the folded state to the unfolded state.

[0032] Optionally, the end of the moving member facing the rotating member includes a convex tooth, and the end of the rotating member facing the moving member includes a first tooth groove and a second tooth groove arranged at intervals along the first direction.

[0033] Optionally, a step is formed between the first tooth groove and the second tooth groove, and along the first direction, the first tooth groove is closer to the middle plate than the second tooth groove, and the inner wall surface of the first tooth groove close to the second tooth groove is configured as the guide slope.

[0034] Optionally, when the folding device is in a folded state, the convex tooth abuts against the first tooth groove; when the folding device is in an unfolded state, the convex tooth abuts against the second tooth groove.

[0035] The present application also provides a smart terminal, comprising the above-mentioned torque mechanism; and / or, comprising the above-mentioned folding device.

[0036] In the present application, a second elastic member is provided, and the elastic force of the second elastic member acts between the connecting member and the swinging side plate. Since the swinging side plate is connected to the middle plate through a physical rotating shaft, when the folding device is unfolded from a folded state, the second elastic member slowly pops open the connecting member along the movement trajectory of the swinging side plate, thereby avoiding the problem of failure and damage of the flexible screen due to the unsmooth rotation of the swinging side plate relative to the middle plate.

[0037] In the present application, the second elastic member slowly bounces the connecting member open along the movement trajectory of the swinging side plate, thereby preventing the swinging side plate from rotating smoothly relative to the middle plate and causing the flexible screen to fail and be damaged due to the jamming of the parts.

[0038] The present application blocks the support plate in the gap between the middle plate and the swinging side plate so that the side of the folding device facing the flexible screen is relatively flat, which helps to provide a stable support effect for the flexible screen and prevent problems such as colored spots on the flexible screen when pressed or cracks and damage on the flexible screen, thereby effectively supporting and protecting the flexible screen. In addition, the middle area of ​​the support plate can be fixed to the flexible screen with glue, effectively improving the problems of arching and creases on the flexible screen.

[0039] In addition to the technical problems solved by the embodiments of the present application described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by a torsion mechanism, a folding device and an intelligent terminal provided by the embodiments of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor.

[0041] Figure 1 A schematic diagram of the three-dimensional structure of a torque mechanism provided in an embodiment of the present application;

[0042] Figure 2 An exploded diagram of a torque mechanism provided in an embodiment of the present application;

[0043] Figure 3A schematic diagram of a three-dimensional structure of another torque mechanism provided in an embodiment of the present application;

[0044] Figure 4 A schematic diagram of the three-dimensional structure of the folding device provided in an embodiment of the present application in a folded state;

[0045] Figure 5 A schematic diagram of a three-dimensional structure of an intermediate state of the folding device provided in an embodiment of the present application when switching between a folded state and an unfolded state;

[0046] Figure 6 A schematic diagram of the three-dimensional structure of the folding device provided in an embodiment of the present application in an unfolded state;

[0047] Figure 7 A schematic diagram of a partial structure of a folding device provided in an embodiment of the present application;

[0048] Figure 8 A schematic diagram of a structure in which a torsion mechanism provided in an embodiment of the present application is installed in a folding device;

[0049] Fig. 9 Another structural schematic diagram of the torsion mechanism provided in the embodiment of the present application being installed in the folding device;

[0050] Fig.10 A schematic diagram of the connection structure of the connecting member, the second elastic member and the swing side plate of the folding device provided in an embodiment of the present application;

[0051] Fig.11 for Fig.10 Exploded diagram of

[0052] Fig.12 A schematic diagram of the structure of a connecting member of a folding device provided in an embodiment of the present application;

[0053] Fig.13 A bottom view of the folding device provided in an embodiment of the present application;

[0054] Fig.14 A schematic diagram of the structure of the folding device provided in an embodiment of the present application without the support plate;

[0055] Fig.15 A schematic diagram of the structure of the auxiliary components of the folding device provided in an embodiment of the present application;

[0056] Fig.16 An exploded view of an auxiliary component of a folding device provided in an embodiment of the present application;

[0057] Fig.17 A schematic diagram of the structure of the rotating part and the moving part of the folding device provided in an embodiment of the present application;

[0058] Fig.18A schematic diagram of the hardware structure of a mobile terminal provided in an embodiment of the present application.

[0059] Description of reference numerals:

[0060] 10-spindle assembly; 11-spindle; 12-anti-slip portion;

[0061] 20-synchronizing assembly; 21-connecting rod; 211-gear portion; 212-connecting rod portion; 2121-first through hole;

[0062] 30-damping assembly; 31-gasket; 311-mounting hole; 32-first elastic member;

[0063] 40-connecting member; 41-extension arm; 411-second through hole; 42-second sliding portion; 43-fixing hole; 44-connecting shaft;

[0064] 50-middle shaft assembly; 51-middle plate; 52-support plate; 53-upper cover plate;

[0065] 60-swing side plate; 61-accommodating groove; 611-convex column; 62-first sliding portion; 63-first guide groove; 64-second guide groove; 65-concave cavity;

[0066] 70- second elastic member;

[0067] 80- auxiliary component; 81- rotating member; 811- first tooth groove; 812- second tooth groove; 813- guiding inclined surface;

[0068] 814-arc-shaped portion; 815-first guide block; 82-moving member; 821-convex tooth; 822-second guide block; 823-installation groove; 83-third elastic member;

[0069] 500-mobile terminal; 501-radio unit; 502-WiFi module; 503-audio output unit; 504-A / V input unit; 5041-graphics processor; 5042-microphone; 505-sensor; 506-display unit; 5061-display panel; 507-user input unit; 5071-touch panel; 5072-other input devices; 508-interface unit; 509-memory; 510-processor; 511-power supply.

[0070] The realization of the purpose, functional features and advantages of this application will be further described in conjunction with the embodiments and with reference to the accompanying drawings. The above-mentioned drawings have shown clear embodiments of this application, which will be described in more detail later. These drawings and textual descriptions are not intended to limit the scope of the concept of this application in any way, but to illustrate the concept of this application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0071] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0072] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element. Optionally, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context in the specific embodiment.

[0073] It should be understood that, although the terms first, second, third, etc. may be used to describe various information in this article, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this article, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determination". Furthermore, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising", "including" indicate that there are the above-mentioned features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or", "and / or", "including at least one of the following" etc. used in this application may be interpreted as inclusive, or mean any one or any combination. For example, “comprising at least one of the following: A, B, C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”, and for another example, “A, B or C” or “A, B and / or C” means “any of the following: A; B; C; A and B; A and C; B and C; A and B and C”. An exception to this definition will only occur when a combination of elements, functions, steps or operations are inherently mutually exclusive in some manner.

[0074] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are displayed in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence according to the order indicated by the arrows. Unless there is a clear explanation in this article, the execution of these steps does not have a strict order restriction, and it can be performed in other orders. Moreover, at least a portion of the steps in the figure may include a plurality of sub-steps or a plurality of stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

[0075] As used herein, the words "if" and "if" may be interpreted as "at the time of" or "when" or "in response to determining" or "in response to detecting", depending on the context. Similarly, the phrases "if it is determined" or "if (stated condition or event) is detected" may be interpreted as "when it is determined" or "in response to determining" or "when detecting (stated condition or event)" or "in response to detecting (stated condition or event)", depending on the context.

[0076] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0077] In the subsequent description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present application, and have no specific meanings. Therefore, "module", "component" or "unit" can be used in a mixed manner.

[0078] The smart terminal may be implemented in various forms. For example, the smart terminal described in this application may include smart terminals such as mobile phones, tablet computers, laptop computers, PDAs, portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0079] Flexible screen, i.e. flexible display screen, is used to display images. Exemplarily, the flexible screen can be an organic light-emitting diode (OLED) display screen, an active-matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display screen, a mini organic light-emitting diode (Mini Organic Light-Emitting Diode) display screen, a micro organic light-emitting diode (Micro Organic Light-Emitting Diode) display screen, a micro organic light-emitting diode (Micro Organic Light-Emitting Diode) display screen, and a quantum dot light-emitting diode (Quantum Dot Light Emitting Diodes, QLED) display screen.

[0080] The folding device is a key component of the smart terminal. During the unfolding and closing process of the smart terminal, it can drive the flexible display screen to flatten or bend. The torque component increases the movement torque of the folding device. If the movement stability of the torque component is poor, it will cause the smart terminal to be difficult to maintain stability in the folded or unfolded state, affecting the use effect.

[0081] Especially for outward-folding smart terminals where the flexible screen is located on the outside of the smart terminal, insufficient torque can easily cause the folding device to pop open instantly when the smart terminal is unfolded, causing the flexible screen to be pulled and damaged.

[0082] In view of this, the present application provides a torsion mechanism, which, by setting a synchronization component and a damping component, includes two connecting rod members that are meshed with each other, and the damping component elastically abuts against the side surfaces of the connecting rod members and forms a friction fit with the side surfaces of the connecting rod members. When the connecting rod members rotate, there is a large friction force between the damping component and the side surfaces of the connecting rod members. The friction force hinders the relative rotation of the connecting rod members on both sides of the main shaft assembly, and can increase the rotational torque of the connecting rod members, thereby solving the problem that the stability of the smart terminal is poor and the smart terminal is prone to instantly pop open from a folded state and pull the flexible screen, causing the flexible screen to fail.

[0083] A torque mechanism, a folding device and a smart terminal provided in embodiments of the present application are described below with reference to the accompanying drawings.

[0084] First embodiment

[0085] refer to Figure 1 and Figure 2 As shown, the present application provides a torsion mechanism, including a main shaft assembly 10, at least one group of connecting rod members 21, and at least one damping assembly 30, the main shaft assembly 10 includes at least two main shafts 11 arranged at intervals; at least one group of connecting rod members 21 is arranged on the main shaft 11, a group of connecting rod members 21 includes two connecting rod members 21 meshing with each other, a group of connecting rod members 21 rotates relatively on both sides of the main shaft assembly 10, the damping assembly 30 elastically abuts against the side of the connecting rod member 21, and forms a friction fit with the side of the connecting rod member 21 to increase the torque of the movement of the connecting rod member 21.

[0086] The present application provides a torsion mechanism, which is provided with at least one group of connecting rods 21 and at least one damping assembly 30. Each group of connecting rods 21 includes two connecting rods 21 meshing with each other. The damping assembly 30 elastically abuts against the side surfaces of the connecting rods 21 and forms a friction fit with the side surfaces of the connecting rods 21. When the connecting rods 21 rotate, there is a large friction force between the damping assembly 30 and the side surfaces of the connecting rods 21. The friction force hinders the relative rotation of the connecting rods 21 on both sides of the main shaft assembly 10, and can increase the rotational torque of the connecting rods 21, thereby solving the problem that the stability of the smart terminal is poor and the smart terminal is easy to instantly pop open from the folded state and pull the flexible screen, causing the flexible screen to be easily damaged or fail.

[0087] Optionally, at least one group of connecting rods 21, i.e., at least one group of synchronization components 20, is provided on the main shaft 11, and the two connecting rods 21 of each group of synchronization components 20 rotate relatively on both sides of the main shaft component 10. Each group of synchronization components 20 includes two connecting rods 21 meshing with each other, and the two connecting rods 21 meshing with each other rotate relatively on both sides of the main shaft component 10.

[0088] In a possible implementation, the two main axes 11 disposed at intervals may be disposed parallel to each other.

[0089] In a possible implementation, the damping assembly 30 includes at least one gasket 31 . The gasket 31 is disposed on the main shaft 11 . The connecting rod 21 is disposed on the main shaft 11 . The gasket 31 abuts against the connecting rod 21 .

[0090] In a possible implementation, the gasket 31 may be a metal gasket, which ensures the wear resistance of the gasket 31 .

[0091] In a possible implementation, the gasket 31 is slidably disposed on the two main shafts 11. Optionally, two mounting holes 311 are provided in the gasket 31, and the two main shafts 11 are respectively penetrated in the two mounting holes 311, which is convenient for installation and can also prevent the gasket 31 from rotating.

[0092] In a possible implementation, the connecting rod 21 includes at least two groups, and each group of connecting rods 21 and washers 31 are arranged at intervals along the axial direction of the main shaft 11. That is, the synchronization assembly 20 includes at least two groups, that is, the number of synchronization assemblies 20 is at least two groups, and each group of synchronization assemblies 20 and washers 31 are arranged at intervals along the axial direction of the main shaft 11. In this way, the contact area between the connecting rod 21 and the washers 31 is increased, thereby increasing the resistance to the movement of the connecting rod 21.

[0093] In a possible implementation, the damping assembly 30 further includes a first elastic member 32 , one end of which abuts against the connecting rod 21 or the gasket 31 .

[0094] In a possible implementation, the end of the main shaft 11 is provided with an anti-slip portion 12, and the other end of the first elastic member 32 abuts against the anti-slip portion 12. The elastic force provided by the first elastic member 32 causes the gasket 31 to elastically abut against the side of the connecting rod 21, thereby ensuring a stable friction force between the gasket 31 and the connecting rod 21, thereby effectively increasing the torque of the torque mechanism.

[0095] In a possible implementation, the first elastic member 32 may be a compression spring, or an elastic sleeve, etc. The first elastic member 32 may be sleeved on the main shaft 11 .

[0096] In one possible implementation, reference Figure 1 and Figure 2 As shown, on each main shaft 11 , the number of the first elastic member 32 may be one, and the first elastic member 32 may be located on the same side of the gasket 31 and the connecting rod 21 along the axial direction of the main shaft 11 .

[0097] Among other possible implementations, see Figure 3 As shown, the first elastic members 32 may also be two arranged along the axial direction of the main shaft 11 , and the synchronization assembly 20 and the gasket 31 are located between the two first elastic members 32 .

[0098] In a possible implementation, the anti-slip portion 12 is used to prevent the first elastic member 32 from slipping out. The anti-slip portion 12 may be a flange fixed to the end of the main shaft 11, or a buckle or baffle fixed to the end of the main shaft 11.

[0099] In one possible implementation, reference Figure 1 , Figure 2 and Figure 3 As shown, the torsion mechanism further includes a connecting member 40, and the connecting rod members 21 include at least two groups, and at least two connecting rod members 21 located on the same side of the main shaft assembly 10 are connected to the same connecting member 40. The connecting member 40 can play a role in concentrating the movement of multiple connecting rod members 21, thereby simplifying the overall structure of the torsion mechanism.

[0100] In one possible implementation, reference Figure 1 and Figure 2 As shown, the connecting rod 21 includes a gear portion 211 and a connecting rod portion 212 . The gear portion 211 is sleeved on the main shaft 11 . The gear portion 211 is connected to one end of the connecting rod portion 212 . The connecting rod portion 212 is connected to the connecting member 40 .

[0101] In a possible implementation, one end of the connecting rod portion 212 may be integrally connected to the gear portion 211 , that is, the gear portion 211 and the connecting rod portion 212 may be an integrally connected structure.

[0102] In a possible implementation, the gear portion 211 is an incomplete gear, and the center of the gear portion 211 is sleeved on the main shaft 11, so that the gear portion 211 rotates around the central axis of the main shaft 11. The gear portions 211 of the two connecting rod members 21 mesh with each other, so that the connecting rod portions 212 of the two connecting rod members 21 can achieve synchronous swinging.

[0103] In one possible implementation, reference Figure 1 , Figure 2 and Figure 3 As shown, there are multiple groups of connecting rod members 21 , and each group of connecting rod members 21 and gaskets 31 are arranged at intervals along the axial direction of the main shaft 11 . The connecting rod members 21 located on the same side of the main shaft assembly 10 are connected to the same connecting member 40 .

[0104] Optionally, each group of connecting rods 21 and washers 31 are arranged at intervals along the axial direction of the main shaft 11, which can effectively increase the contact area between each group of connecting rods 21 and washers 31, help increase the friction between the connecting rods 21 and washers 31, and thus increase the torque of the torque mechanism movement.

[0105] In one possible implementation, reference Figure 1 , Figure 2 and Figure 3As shown, the connecting rods 21 can be 3 groups, 4 groups, 5 groups, 6 groups, 7 groups or 8 groups, etc., which are not specifically limited here. The number of washers 31 arranged between each adjacent group of connecting rods 21 can be 1, 2 or 3, etc., which helps to increase the friction area between the connecting rods 21 and the washers 31, improve the friction force, and thus improve the torque of the torque mechanism.

[0106] In a possible implementation, the connecting member 40 includes at least one extension arm 41 , and the extension arm 41 is connected to the connecting rod portion 212 .

[0107] In a possible implementation, the connecting member 40 includes at least two extension arms 41, and the synchronization assembly 20 includes at least three groups, and the connecting rods of the at least three groups of synchronization assemblies 20 are respectively arranged on both sides of the at least two extension arms 41. Figure 1 , Figure 2 and Figure 3 As shown, the connecting member includes two extension arms 41 , and the synchronization components 20 include five groups, three groups of synchronization components 20 are arranged between the two extension arms 41 , and one group of synchronization components is respectively arranged on the periphery of the two extension arms 41 .

[0108] In one possible implementation, reference Figure 1 , Figure 2 and Figure 3 As shown, the connecting rod members 21 and the connecting member 40 of each group of synchronization assemblies 20 located on the same side of the main shaft assembly 10 can be connected through a connecting shaft 44.

[0109] In a possible implementation, at least two first through holes 2121 are provided in the connecting rod portion 212 of each group of synchronization components 20 located on the same side of the main shaft assembly 10, at least two second through holes 411 are provided in the extension arm 41, and the connecting member 40 further includes at least two connecting shafts 44, which are respectively passed through a first through hole 2121 and a second through hole 411, so as to realize the connection between the connecting rod 21 of each group of synchronization components 20 and the connecting member 40, and facilitate the synchronous movement of each group of synchronization components 20 through the connecting member 40. The central axis of the first through hole 2121 coincides with the corresponding second through hole 411, which means that during assembly, the first through hole 2121 is aligned with the corresponding second through hole 411, so that the connecting shaft 44 can pass through smoothly, ensuring the convenience of assembly.

[0110] The gear parts 211 of the connecting rod members 21 of each group of synchronization components 20 are meshed with each other, so that the connecting rod members 21 on both sides of the main shaft assembly 10 move synchronously, which helps to improve the unfolding efficiency and folding efficiency of the smart terminal.

[0111] Second embodiment

[0112] refer to Figure 4 , Figure 5and Figure 6 As shown, the present application also provides a folding device, including a torsion mechanism, a central axis assembly 50 and a swinging side plate 60, the central axis assembly 50 includes a middle plate 51, the main axis assembly 10 of the torsion mechanism is fixedly arranged on the middle plate 51, the swinging side plate 60 is movably arranged on opposite sides of the middle plate 51, and the connecting member 40 of the torsion mechanism is slidably connected to the swinging side plate 60.

[0113] Optionally, the torsion mechanism in this embodiment may include the torsion mechanism in the above embodiment, or may be a torsion mechanism of any structure, which is not specifically limited here.

[0114] In a possible implementation, the swing side plates 60 are relatively swingably arranged on opposite sides of the middle plate 51, and the connecting member 40 of the torsion mechanism is slidably connected to the swing side plates 60. When the swing side plates 60 swing on both sides of the middle plate 51, the swing side plates 60 drive the connecting member 40 to swing, and the connecting member 40 slides relative to the swing side plates 60, and the extension arm 41 of the connecting member 40 drives the connecting rod member 21, so that the gear parts 211 of the two connecting rod members 21 of each group of synchronization components 20 are meshed with each other, so that the swing side plates 60 swing synchronously on the opposite sides of the middle plate 51.

[0115] In a possible implementation, the axial directions of the two main shafts 11 of the main shaft assembly 10 are consistent with the length direction of the middle plate 51 , and both ends of the main shaft 11 are fixedly connected to the middle plate 51 .

[0116] In one possible implementation, reference Figure 7 , Figure 8 and Fig. 9 As shown, a receiving groove 61 is defined in the swing side plate 60 , and the connecting member 40 is slidably disposed in the receiving groove 61 .

[0117] In a possible implementation, the inner wall of the accommodating groove 61 is provided with a first sliding portion 62 , and the connecting member 40 includes a second sliding portion 42 matched with the first sliding portion 62 .

[0118] In a possible implementation, one of the first sliding portion 62 and the second sliding portion 42 is a sliding groove, and the other of the first sliding portion 62 and the second sliding portion 42 is a sliding block. Such a structure guides the sliding of the connecting member 40 relative to the swing side plate 60, thereby realizing the sliding of the connecting member 40 relative to the swing side plate 60.

[0119] In one possible implementation, reference Fig.10 , Fig.11 and Fig.12 As shown, the second sliding portion 42 is located on both sides of the connecting member 40 , the second sliding portion 42 may be a slider, and the first sliding portion 62 is a slide groove, which guides the sliding of the connecting member 40 by sliding the slider in the slide groove.

[0120] refer to Fig. 9 and Fig.10 As shown, the receiving groove 61 is formed in the plate surface of the swing side plate 60 , so as to prevent the connecting member 40 from protruding from the swing side plate 60 . The opening end of the receiving groove 61 faces the spindle assembly 10 .

[0121] In a possible implementation, the folding device further includes a second elastic member 70 . The second elastic member 70 is located in the accommodating groove 61 . Two ends of the second elastic member 70 are respectively in contact with the connecting member 40 and the swing side plate 60 .

[0122] In a possible implementation, two ends of the second elastic member 70 abut against the connecting member 40 and the inner wall surface of the accommodating groove 61 , respectively, and the elastic compression direction of the second elastic member 70 is consistent with the sliding direction of the connecting member 40 .

[0123] Optionally, when the swinging side plate 60 swings on both sides of the middle plate 51, the second elastic member 70 undergoes elastic deformation, which helps to increase the resistance to sliding of the connecting member 40, thereby increasing the resistance to swinging of the swinging side plate 60 on both sides of the middle plate 51, and helps to improve the stability of the movement of the folding device, thereby preventing the smart terminal from instantly popping open from the folded state and pulling the flexible screen, causing the flexible screen to fail.

[0124] Optionally, when the folding device is in a folded state, the second elastic member 70 is elastically compressed under the squeezing action of the connecting member 40, and the elastic force of the second elastic member 70 acts between the connecting member 40 and the swinging side plate 60. Since the swinging side plate 60 is connected to the middle plate 51 through a solid rotating shaft, when the folding device is unfolded from a folded state, the second elastic member 70 elastically resets, and the second elastic member 70 slowly pops open the connecting member 40 along the movement trajectory of the swinging side plate 60, thereby avoiding the problem of the swinging side plate 60 rotating smoothly relative to the middle plate 51 and causing the flexible screen to fail and be damaged.

[0125] In one possible implementation, reference Fig.10 and Fig.11 As shown, the second elastic member 70 may be a spring or an elastic sleeve. The number of the second elastic members 70 in the receiving groove 61 may be one, two or three.

[0126] In a possible implementation, a boss 611 is provided on the inner wall of the receiving groove 61, a fixing hole 43 is provided on one end of the connecting member 40 facing the boss 611, one end of the second elastic member 70 is sleeved on the outer wall of the boss 611, and the other end of the second elastic member 70 extends into the fixing hole 43. Such a structure is intended to prevent the second elastic member 70 from falling off and facilitates the installation of the second elastic member 70.

[0127] In one possible implementation, reference Fig.13 and Fig.14 As shown, the present application also provides a folding device, which also includes a support plate 52. The support plate 52 is arranged on the side of the middle plate 51 that is away from the torsion mechanism. The two side edges of the support plate 52 extend to the swing side plate 60 respectively, and the support plate 52 blocks the gap between the middle plate 51 and the swing side plate 60.

[0128] Optionally, the side of the middle plate 51 facing away from the torque mechanism has an upper cover plate 53, and the upper cover plate 53 can be connected to the middle plate 51 by screws. The upper cover plate 53 can also cover the gear part 211 and the gasket 31, which helps to protect the gear part 211 and the gasket 31.

[0129] refer to Fig.13 and Fig.14 As shown, optionally, the support plate 52 may be a metal sheet, such as a stainless steel sheet, and the support plate 52 may bend along with the folding movement of the folding device, and may be flattened along with the unfolding movement of the folding device.

[0130] In one possible implementation, the middle area of ​​the support plate 52 can be fixed to the flexible screen by adhesive, which effectively improves the problem of the flexible screen's back arch and crease.

[0131] Taking into account that when the folding device is in the unfolded state, the gap between the middle plate 51 and the swinging side plate 60 is relatively large, the present application blocks the support plate 52 in the gap between the middle plate 51 and the swinging side plate 60 so that the side of the folding device facing the flexible screen is relatively flat, which helps to provide a stable support effect for the flexible screen and prevent problems such as colored spots on the flexible screen when pressed or cracks and damage on the flexible screen, thereby effectively supporting and protecting the flexible screen.

[0132] Optionally, the support plate 52 is connected to the middle plate 51 by, but not limited to, adhesives, screws, etc. The two ends of the support plate 52 in the length direction extend to the two ends of the middle plate 51 in the length direction, and the two ends of the support plate 52 in the width direction extend to the swing side plate 60, thereby ensuring a stable support effect for the flexible screen.

[0133] In one possible implementation, reference Fig.15 , Fig.16 and Fig.17 As shown, the folding device further includes an auxiliary component 80, the auxiliary component 80 includes a rotating member 81, the rotating member 81 is rotatably connected to the middle plate 51, and the rotating member 81 is movably disposed on the swing side plate 60 along a first direction.

[0134] In one possible implementation, reference Fig.15 , Fig.16 and Fig.17As shown, the folding device further includes a moving member 82 , which is movably disposed on the swing side plate 60 along the second direction, and there is an angle between the first direction and the second direction. The moving member 82 elastically abuts against the rotating member 81 .

[0135] In one possible implementation, the rotating member 81 is slidably disposed on the swinging side plate 60 along a first direction, one end of the rotating member 81 facing the middle plate 51 is rotatably connected to the middle plate 51, the moving member 82 is slidably disposed on the swinging side plate 60 along a second direction, and the moving member 82 elastically abuts against the rotating member 81.

[0136] In this embodiment, reference Fig.15 , Fig.16 and Fig.17 As shown, the first direction refers to the direction indicated by the arrow Y in the reference figure, and the second direction refers to the direction indicated by the arrow X in the reference figure.

[0137] The auxiliary component 80 is used to further increase the rotational torque of the folding device, effectively preventing the folding device from instantly popping open and pulling the flexible screen, causing the flexible screen to fail and be damaged.

[0138] In a possible implementation, a side of the rotating member 81 facing the movable member 82 includes a guiding slope 813 , and the guiding slope 813 is configured to guide the movable member 82 to move away from the rotating member 81 along the second direction when the folding device switches from the folded state to the unfolded state.

[0139] In this embodiment, the guide slope 813 gradually tilts toward the moving member 82 along the second direction from the end of the rotating member 81 connected to the middle plate 51 along the first direction toward the end of the rotating member 81 away from the middle plate 51. When the folding device switches from the folded state to the unfolded state, the moving member 82 moves away from the rotating member 81 along the second direction under the guidance of the guide slope 813.

[0140] In one possible implementation, reference Fig.15 , Fig.17 and Fig.18 As shown, the end of the rotating member 81 facing the middle plate 51 has an arc portion 814, and the side of the middle plate 51 facing the main shaft assembly 10 has an arc groove. The arc portion 814 is rotatably set in the arc groove, and the arc portion 814 slides along the inner wall surface of the arc groove, so that the rotating member 81 and the middle plate 51 are rotationally connected by a virtual axis, which is beneficial to reducing the occupied space and thus conducive to the miniaturization of the folding device.

[0141] In one possible implementation, both sides of the rotating member 81 have a first guide block 815, a first guide groove 63 is opened in the swinging side plate 60, the first guide groove 63 extends along the first direction, and the first guide block 815 is slidably set in the first guide groove 63. Through the sliding cooperation between the first guide block 815 and the first guide groove 63, the movable member 82 is guided to slide relative to the swinging side plate 60 along the second direction.

[0142] In one possible implementation, in order to ensure that the moving member 82 is slidably arranged on the swinging side plate 60 along the second direction, a second guide block 822 is provided on both sides of the moving member 82, a second guide groove 64 is opened in the swinging side plate 60, and the second guide groove 64 extends along the second direction. The second guide block 822 is slidably arranged in the second guide groove 64, and the moving member 82 is guided to slide relative to the swinging side plate 60 along the second direction through the sliding cooperation between the second guide block 822 and the second guide groove 64.

[0143] In a possible implementation, the angle between the first direction and the second direction may be, for example, 88°, 90°, 91°, or 92°.

[0144] In one possible implementation, reference Fig.15 , Fig.16 and Fig.18 As shown, the end of the movable member 82 facing the rotating member 81 includes a convex tooth 821, and the end of the rotating member 81 facing the movable member 82 includes a first tooth groove 811 and a second tooth groove 812 arranged at intervals along a first direction, and a step is formed between the first tooth groove 811 and the second tooth groove 812. Along the first direction, the first tooth groove 811 is closer to the middle plate 51 than the second tooth groove 812, and the inner wall surface of the first tooth groove 811 close to the second tooth groove 812 is configured as a guide slope 813.

[0145] When the folding device is in a folded state, the convex tooth 821 abuts against the first tooth groove 811, playing the role of limiting the folded state. When the folding device is in an unfolded state, the convex tooth 821 abuts against the second tooth groove 812, playing the role of limiting the unfolded state. This can effectively prevent the flexible screen from being pulled and failing, and the problem of the flexible screen failing due to excessive unfolding angles and folding angles of the folding device.

[0146] In a possible implementation, the protruding tooth 821 may be triangular in shape, the first tooth groove 811 and the second tooth groove 812 are both V-shaped grooves, the step formed between the first tooth groove 811 and the second tooth groove 812 is triangular in shape, and both side surfaces of the step are inclined surfaces.

[0147] During the process of switching the folding device from a folded state to an unfolded state, the convex tooth 821 moves from the first tooth groove 811 along the guiding slope 813 to cross the step formed between the first tooth groove 811 and the second tooth groove 812. As the folding device gradually enters the unfolded state, the convex tooth 821 enters the second tooth groove 812. Since the movement of the convex tooth 821 along the guiding slope 813 is similar to climbing motion, the torque of the folding device unfolding can be increased through the cooperation and friction between the convex tooth 821 and the inner wall surface of the first tooth groove 811, thereby offsetting the hovering effect of the whole machine formed by the tension of the flexible screen itself. In addition, through the cooperation and friction between the convex tooth 821 and the guiding slope 813, the difficulty of the convex tooth 821 entering from the first tooth groove 811 to the second tooth groove 812 can be increased, which helps to increase the torque during the unfolding process of the folding device and prevent the folding device from instantly unfolding and pulling the flexible screen, causing failure and damage of the flexible screen.

[0148] During the process of switching the folding device from the unfolded state to the folded state, the convex tooth 821 gradually passes over the step formed between the first tooth groove 811 and the second tooth groove 812 from the second tooth groove 812. Due to the blocking effect of the step, it is more difficult for the convex tooth 821 to enter the first tooth groove 811. Therefore, when closing the smart terminal, a greater push is required to achieve closing, which helps to increase the torque of the folding device during the folding process and prevent the folding device from pulling the flexible screen with the instantaneous closing movement. As the folding device gradually enters the folded state, the convex tooth 821 enters the first tooth groove 811.

[0149] Optionally, the auxiliary component 80 may further include a third elastic member 83, the two ends of which are respectively in contact with the swing side plate 60 and the moving member 82, and the elastic compression direction of the third elastic member 83 is consistent with the sliding direction of the moving member 82. That is, the elastic compression direction of the third elastic member 83 is along the second direction, i.e. Fig.16 The arrow X indicates the direction.

[0150] During the process of switching the folding device from the folded state to the unfolded state, the movable member 82 moves away from the rotating member 81 along the second direction under the guidance of the guiding slope 813, and the movable member 82 squeezes the third elastic member 83, so that the third elastic member 83 is elastically compressed. The third elastic member 83 applies elastic force to the movable member 82, which helps the movable member 82 to fit tightly against the guiding slope 813, thereby ensuring the matching friction effect between the guiding slope 813 and the convex teeth 821 of the movable member 82, which is beneficial to improving the unfolding torque of the folding device and offsetting the hovering effect of the whole machine caused by the tension of the flexible screen itself.

[0151] In a possible implementation, the third elastic member 83 may be a spring or an elastic sleeve. The number of the third elastic members 83 between the swing side plate 60 and the moving member 82 may be one, two or three.

[0152] In a possible implementation, the side of the swing side plate 60 facing the moving member 82 has a concave cavity 65, and the moving member 82 slides in the concave cavity 65. The side of the moving member 82 facing the swing side plate 60 has a mounting groove 823, and the third elastic member 83 is located in the mounting groove 823. The two ends of the third elastic member 83 respectively abut against the inner wall surface of the concave cavity 65 and the inner wall surface of the mounting groove 823. The third elastic member 83 can be shielded by the moving member 82 to prevent the third elastic member 83 from falling off.

[0153] The present application also provides a smart terminal, comprising the torque mechanism in the above embodiment.

[0154] The present application also provides a smart terminal, comprising the folding device in the above embodiment.

[0155] The present application also provides a smart terminal, comprising the torque mechanism and the folding device in the above embodiment.

[0156] Optionally, the intelligent terminal further includes a flexible screen, which is arranged on a side of the middle plate 51 facing away from the spindle assembly 10 .

[0157] Optionally, the intelligent terminal further comprises two shells, the folding device mentioned above is connected between the two shells, and the two shells rotate towards or away from each other under the action of the folding device to respectively realize folding movement and unfolding movement.

[0158] Optionally, the flexible screen is located outside the folding device, and in the unfolded state, it can meet the user's need for a large screen display. In the folded state, it has good portability.

[0159] The following description will be made by taking a mobile terminal as an example, and those skilled in the art will understand that, in addition to components specifically used for mobile purposes, the construction according to the embodiments of the present application can also be applied to fixed-type terminals.

[0160] Please refer to Fig.18 As shown, it is a schematic diagram of the hardware structure of a mobile terminal for implementing various embodiments of the present application. The mobile terminal 500 may include: an RF (Radio Frequency, RF) unit 501, a WiFi module 502, an audio output unit 503, an A / V (Audio / Video) input unit 504, a sensor 505, a display unit 506, a user input unit 507, an interface unit 508, a memory 509, a processor 510, and a power supply 511. Those skilled in the art can understand that Fig.18 The structure of the mobile terminal shown in the figure does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0161] Combine the following Fig.18 The following is a detailed introduction to the various components of the mobile terminal:

[0162] The radio frequency unit 501 can be used to receive and send signals during information transmission or communication. Optionally, after receiving the downlink information of the base station, it is sent to the processor 510 for processing; in addition, the uplink data is sent to the base station. Generally, the radio frequency unit 501 includes but is not limited to an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc. In addition, the radio frequency unit 501 can also communicate with the network and other devices through wireless communication. The above-mentioned wireless communications can use any communication standard or protocol, including but not limited to GSM Global System of Mobile communication, Global System for Mobile Communications), GPRS General Packet Radio Service, General Packet Radio Service), CDMA2000 Code Division Multiple Access 2000, Code Division Multiple Access 2000), WCDMA Wideband Code Division Multiple Access, Wideband Code Division Multiple Access), TD-SCDMA Time Division-Synchronous Code Division Multiple Access, Time Division Synchronous Code Division Multiple Access), FDD-LTE Frequency Division Duplexing-Long Term Evolution, Frequency Division Duplexing Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution) and 5G, etc.

[0163] WiFi is a short-range wireless transmission technology. The mobile terminal can help users send and receive emails, browse web pages, and access streaming media through the WiFi module 502. It provides users with wireless broadband Internet access. Fig.18 A WiFi module 502 is shown, but it is understandable that it is not an essential component of the mobile terminal and can be omitted as needed without changing the essence of the application.

[0164] The audio output unit 503 can convert the audio data received by the RF unit 501 or the WiFi module 502 or stored in the memory 509 into an audio signal and output it as sound when the mobile terminal 500 is in a call signal reception mode, a talk mode, a recording mode, a voice recognition mode, a broadcast reception mode, etc. Moreover, the audio output unit 503 can also provide audio output related to a specific function performed by the mobile terminal 500 (for example, a call signal reception sound, a message reception sound, etc.). The audio output unit 503 may include a speaker, a buzzer, etc.

[0165] The A / V input unit 504 is used to receive audio or video signals. The A / V input unit 504 may include a graphics processor (GPU) 5041 and a microphone 5042, and the graphics processor 5041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The processed image frame can be displayed on the display unit 506. The image frame processed by the graphics processor 5041 can be stored in a memory 509 or other storage medium) or sent via the radio frequency unit 501 or the WiFi module 502. The microphone 5042 can receive sound (audio data) via the microphone 5042 in a telephone call mode, a recording mode, a voice recognition mode, and the like, and can process such sound into audio data. The processed audio (voice) data can be converted into a format output that can be sent to a mobile communication base station via the radio frequency unit 501 in the case of a telephone call mode. The microphone 5042 can implement various types of noise elimination (or suppression) algorithms to eliminate (or suppress) noise or interference generated in the process of receiving and sending audio signals.

[0166] The mobile terminal 500 also includes at least one sensor 505, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 5061 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 5061 and / or the backlight when the mobile terminal 500 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the posture of the mobile phone, such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions such as pedometer, tapping), etc.; as for other sensors that can also be configured on the mobile phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, infrared sensors, etc., they will not be repeated here.

[0167] The display unit 506 is used to display information input by the user or information provided to the user. The display unit 506 may include a display panel 5061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0168] The user input unit 507 can be used to receive input digital or character information, and to generate key signal input related to the user settings and function control of the mobile terminal. Optionally, the user input unit 507 may include a touch panel 5071 and other input devices 5072. The touch panel 5071, also known as a touch screen, can collect the user's touch operation on or near it, such as the user's operation on the touch panel 5071 or near the touch panel 5071 using any suitable object or accessory such as a finger, stylus, etc.), and drive the corresponding connection device according to a pre-set program. The touch panel 5071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into the touch point coordinates, and then sends it to the processor 510, and can receive and execute the command sent by the processor 510. In addition, the touch panel 5071 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 5071, the user input unit 507 may also include other input devices 5072. Optionally, the other input devices 5072 may include but are not limited to one or more of a physical keyboard, function keys such as a volume control key, a switch key, etc.), a trackball, a mouse, a joystick, etc., which are not specifically limited here.

[0169] Optionally, the touch panel 5071 may cover the display panel 5061. When the touch panel 5071 detects a touch operation on or near it, it transmits the information to the processor 510 to determine the type of the touch event. Then, the processor 510 provides a corresponding visual output on the display panel 5061 according to the type of the touch event. Fig.18 In the figure, the touch panel 5071 and the display panel 5061 are used as two independent components to realize the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 5071 and the display panel 5061 can be integrated to realize the input and output functions of the mobile terminal, which is not limited here.

[0170] The interface unit 508 serves as an interface through which at least one external device can be connected to the mobile terminal 500. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, etc. The interface unit 508 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or at least one element within the mobile terminal 500 or may be used to transmit data between the mobile terminal 500 and an external device.

[0171] The memory 509 can be used to store software programs and various data. The memory 509 can mainly include a program storage area and a data storage area. Optionally, the program storage area can store an operating system, an application required for at least one function (such as a sound playback function, an image playback function, etc.); the data storage area can store data created according to the use of the mobile phone (such as audio data, a phone book, etc.). In addition, the memory 509 can include a high-speed random access memory, and can also include a non-volatile memory, such as at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0172] The processor 510 is the control center of the mobile terminal. It uses various interfaces and lines to connect various parts of the entire mobile terminal. It executes various functions of the mobile terminal and processes data by running or executing software programs and / or modules stored in the memory 509, and calling data stored in the memory 509, so as to monitor the mobile terminal as a whole. The processor 510 may include one or at least one processing unit; preferably, the processor 510 may integrate an application processor and a modem processor. Optionally, the application processor mainly processes the operating system, user interface, and application programs, and the modem processor mainly processes wireless communications. It is understandable that the above-mentioned modem processor may not be integrated into the processor 510.

[0173] The mobile terminal 500 may also include a power supply 511 (such as a battery) for supplying power to various components. Preferably, the power supply 511 may be logically connected to the processor 510 via a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system.

[0174] although Fig.18 Not shown, the mobile terminal 500 may also include a Bluetooth module, etc., which will not be described in detail here.

[0175] The various technical features of the technical solution of the present application can be arbitrarily combined. In order to make the description concise, not all possible combinations of the various technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0176] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A torque mechanism, characterized in that: include: A spindle assembly (10), the spindle assembly (10) comprising at least two spindles (11) arranged at intervals; At least one group of connecting rods (21) is arranged on the main shaft (11), the group of connecting rods (21) comprises two connecting rods (21) meshing with each other, and the group of connecting rods (21) rotates relatively on both sides of the main shaft assembly (10); At least one damping component (30) is elastically abutted against a side surface of the connecting rod (21) and forms a friction fit with the side surface of the connecting rod (21) to increase the torsional force of the movement of the connecting rod (21).

2. The torque mechanism according to claim 1, characterized in that: The damping assembly (30) comprises at least one gasket (31), wherein the gasket (31) is arranged on the main shaft (11), and the gasket (31) abuts against the connecting rod (21); or; The connecting rod members (21) include at least two groups, and the connecting rod members (21) and the washers (31) in each group are arranged at intervals along the axial direction of the main shaft (11).

3. The torque mechanism according to claim 2, characterized in that: The damping assembly (30) further comprises a first elastic member (32), one end of the first elastic member (32) being in contact with the connecting rod (21) or the gasket (31); or, An anti-slip portion (12) is provided at the end of the main shaft (11), and the other end of the first elastic member (32) abuts against the anti-slip portion (12).

4. The torque mechanism according to any one of claims 1 to 3, characterized in that: The torque mechanism further comprises a connecting member (40), the connecting rod members (21) comprise at least two groups, and at least two connecting rod members (21) located on the same side of the main shaft assembly (10) are connected to the same connecting member (40).

5. The torque mechanism according to claim 4, characterized in that: The connecting rod member (21) comprises a gear portion (211) and a connecting rod portion (212); the gear portion (211) is sleeved on the main shaft (11); and the connecting rod portion (212) is connected to the connecting member (40).

6. The torque mechanism according to claim 5, characterized in that: The connecting member (40) comprises at least one extension arm (41), the connecting rod portion (212) is provided with at least two first through holes (2121), and the extension arm (41) is provided with at least two second through holes (411); The connecting member (40) further comprises at least two connecting shafts (44), wherein the connecting shafts (44) are inserted into the first through hole (2121) and the second through hole (411).

7. A folding device, characterized in that: include: A middle shaft assembly (50), wherein the middle shaft assembly (50) comprises a middle plate (51); A torsion mechanism, wherein a main shaft assembly (10) of the torsion mechanism is arranged on the middle plate (51); A swing side plate (60) is movably arranged on two opposite sides of the middle plate (51), and the connecting member (40) of the torsion mechanism is slidably connected to the swing side plate (60).

8. The folding device according to claim 7, characterized in that: The swing side plate (60) is provided with a receiving groove (61), and the connecting member (40) is slidably arranged in the receiving groove (61).

9. The folding device according to claim 8, characterized in that: Include at least one of the following: The inner wall of the accommodating groove (61) is provided with a first sliding portion (62), and the connecting member (40) includes a second sliding portion (42) matched with the first sliding portion (62); One of the first sliding part (62) and the second sliding part (42) is a sliding groove, and the other of the first sliding part (62) and the second sliding part (42) is a sliding block; The folding device further comprises a second elastic member (70), the second elastic member (70) being located in the accommodating groove (61), and two ends of the second elastic member (70) respectively abutting against the connecting member (40) and the swing side plate (60); The inner wall of the accommodating groove (61) is provided with a boss (611), one end of the connecting member (40) facing the boss (611) is provided with a fixing hole (43), one end of the second elastic member (70) is sleeved on the outer wall surface of the boss (611), and the other end of the second elastic member (70) extends into the fixing hole (43).

10. The folding device according to claim 7, characterized in that: The folding device also includes a support plate (52), which is arranged on a side of the middle plate (51) facing away from the torsion mechanism, and both side edges of the support plate (52) extend to the swing side plate (60) respectively, and the support plate (52) blocks the gap between the middle plate (51) and the swing side plate (60).

11. The folding device according to any one of claims 7 to 10, characterized in that: The folding device further comprises an auxiliary component (80), wherein the auxiliary component (80) comprises a rotating member (81); The rotating member (81) is rotatably connected to the middle plate (51), and the rotating member (81) is movably arranged on the swing side plate (60) along a first direction.

12. The folding device according to claim 11, characterized in that: The auxiliary component (80) further comprises a moving member (82), the moving member (82) being movably disposed on the swing side plate (60) along a second direction, an angle being formed between the first direction and the second direction, and the moving member (82) being elastically abutted against the rotating member (81); or, The auxiliary component (80) further comprises a third elastic member (83), two ends of which are respectively in contact with the swing side plate (60) and the movable member (82), and the elastic compression direction of the third elastic member (83) is consistent with the sliding direction of the movable member (82).

13. The folding device according to claim 12, characterized in that: Include at least one of the following: A side of the rotating member (81) facing the moving member (82) comprises a guiding inclined surface (813), and the guiding inclined surface (813) is configured to drive the moving member (82) to move away from the rotating member (81) along the second direction when the folding device switches from a folded state to an unfolded state; One end of the moving member (82) facing the rotating member (81) includes a convex tooth (821), and one end of the rotating member (81) facing the moving member (82) includes a first tooth groove (811) and a second tooth groove (812) arranged at intervals along the first direction; A step is formed between the first tooth groove (811) and the second tooth groove (812); along the first direction, the first tooth groove (811) is closer to the middle plate (51) than the second tooth groove (812); and the inner wall surface of the first tooth groove (811) close to the second tooth groove (812) is configured as the guide slope (813); When the folding device is in a folded state, the convex tooth (821) abuts against the first tooth groove (811); when the folding device is in an unfolded state, the convex tooth (821) abuts against the second tooth groove (812).

14. An intelligent terminal, characterized in that: The invention comprises a torsion mechanism as claimed in any one of claims 1 to 6; and / or comprises a folding device as claimed in any one of claims 7 to 13.

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