Rotating shaft assembly, folding mechanism and folding equipment

Abstract

The utility model provides a rotating shaft assembly, a folding mechanism comprising the rotating shaft assembly and a supporting assembly, and folding equipment comprising the folding mechanism and a shell so as to improve operation comfort and enhance reliability. The rotating shaft assembly comprises a rotating shaft seat; the cam part is rotatably arranged on the rotating shaft seat; the abutting piece is arranged on one side of the cam piece in a sliding mode in the first direction and abuts against a cam of the cam piece; the elastic piece is configured to provide elastic force, so that the cam piece and the abutting and pushing piece abut against each other; the torsion seat is arranged adjacent to the rotating shaft seat; the torsion arm is rotatably arranged on the torsion seat; the torsion spring part abuts against the torsion arm, and the torsion spring part is configured to be in an energy storage state when the torsion arm rotates in the preset direction and in an energy release state when the torsion arm resets so as to provide torsion and drive the torsion arm to automatically rotate; the rotating shaft piece movably penetrates through the rotating shaft base, the cam piece, the abutting piece, the elastic piece, the torsion base, the torsion arm and the torsion spring piece in the first direction, and the cam piece and the torsion arm rotate around the rotating shaft piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to electronic equipment technical field especially relates to a hinge assembly, folding mechanism and folding equipment. BACKGROUND

[0002] With the progress of mobile electronic device technology, to solve the contradiction between the portability and display area of traditional electronic devices, electronic devices with foldable display modules are developed. Such devices usually contain a display panel made of flexible display material, which realizes the unfolding and closing operation of the display area through a connecting hinge mechanism. However, the existing hinge mechanism cannot provide appropriate movement resistance during closing, and at the same time, a large starting torque needs to be applied for unfolding operation. These mechanical properties result in insufficient operation comfort and reliability of the device. SUMMARY

[0003] In view of the above situation, it is necessary to provide a hinge assembly, folding mechanism and folding equipment to improve the operation comfort and enhance the reliability.

[0004] The hinge assembly provided by the embodiment of the present application comprises:

[0005] a hinge seat;

[0006] a cam member rotatably arranged in the hinge seat;

[0007] a pushing member slidably arranged on one side of the cam member along a first direction and in cam abutment with the cam member, the pushing member being configured to slide relative to the hinge seat under the pushing of the cam member;

[0008] a resilient member configured to provide an elastic force to make the cam member and the pushing member abut each other;

[0009] a torsion seat arranged adjacent to the hinge seat;

[0010] a torsion arm rotatably arranged in the torsion seat;

[0011] a torsion spring member in abutment with the torsion arm, the torsion spring member being configured to be in an energy storage state when the torsion arm rotates in a preset direction and in an energy release state when the torsion arm resets, so as to provide a torsion force and drive the torsion arm to rotate automatically; and

[0012] a hinge member movably arranged in the hinge seat, the cam member, the pushing member, the resilient member, the torsion seat, the torsion arm and the torsion spring member along the first direction, the cam member and the torsion arm rotating around the hinge member.

[0013] In some embodiments, the cam member is provided with a cam surface on a side facing the pushing member, the cam surface is provided with a plurality of first protrusions, the plurality of first protrusions are arranged at intervals along a rotation direction of the cam member, and a first groove is formed between two adjacent first protrusions;

[0014] The pushing member is provided with a pushing surface on a side facing the cam member, the pushing surface is provided with a plurality of second protrusions, the plurality of second protrusions are arranged at intervals along the rotation direction of the cam member, the plurality of second protrusions correspond to the plurality of first protrusions one by one, a second groove is formed between two adjacent second protrusions, and the first protrusion and the first groove are matched with the corresponding second protrusion and the second groove, respectively.

[0015] In some embodiments, the number of the cam members and the number of the shaft members are both two, the two cam members are arranged at intervals along a second direction perpendicular to the first direction, each of the cam members comprises a rotating body and a gear body, the rotating body is rotatably arranged in the shaft seat, the gear body is arranged on a side of the rotating body facing the pushing member and is detachably connected with the rotating body, a side of the gear body facing away from the rotating body is in cam contact with the pushing member, and each of the shaft members is arranged in a corresponding gear body and a corresponding rotating body along the first direction, respectively.

[0016] The gear bodies of the two cam members are engaged with each other.

[0017] In some embodiments, the shaft assembly further comprises:

[0018] two gear members, the two gear members are arranged between the two cam members along the second direction, the two gear members are engaged with each other, and two ends of each of the gear members in the first direction are rotatably connected with the shaft seat and the pushing member, respectively, and the two gear members are engaged with a corresponding gear body, respectively.

[0019] In some embodiments, the shaft assembly further comprises:

[0020] a stop member arranged at intervals with the pushing member, the stop member and the pushing member are respectively in contact with two ends of the elastic member;

[0021] The shaft member is movably arranged in the stop member and is rotatably connected with the stop member.

[0022] In some embodiments, the shaft member comprises:

[0023] The first rotating shaft and the second rotating shaft are arranged in the first direction, the first rotating shaft is movably arranged through the rotating shaft base, the pushing piece, the elastic piece and the stopper, and is rotatably connected with the rotating shaft base and the stopper, the cam piece rotates around the first rotating shaft, and the second rotating shaft is movably arranged through the torsion base, the torsion arm and the torsion spring piece, and is rotatably connected with the torsion base, and the torsion arm rotates around the second rotating shaft.

[0024] In some embodiments, the torsion arm is provided with an open slot arranged on one side of the torsion arm facing the torsion spring piece, the torsion spring piece is inserted into the open slot at one end adjacent to the torsion arm, and the slot wall in the second direction perpendicular to the first direction abuts against the torsion spring piece.

[0025] The embodiments of the present application also provide a folding mechanism, comprising:

[0026] The rotating shaft assembly described above;

[0027] The support assembly comprises a rotating shaft cover, a connecting piece and a door plate piece, the rotating shaft base and the torsion base are detachably connected to the rotating shaft cover, the pushing piece is slidably arranged on the rotating shaft cover, the connecting piece is rotatably arranged on one side of the rotating shaft cover, the connecting piece is provided with a receiving slot, a containing slot and a connecting body, the receiving slot and the containing slot are arranged in parallel, the receiving slot is configured to receive one end of the cam piece away from the torsion base, the containing slot is configured to receive one end of the torsion arm away from the torsion base, and the door plate piece is arranged on one side of the rotating shaft cover and is provided with an arc-shaped mounting slot, the arc-shaped mounting slot is matched with the connecting body, and the arc-shaped mounting slot receives the connecting body.

[0028] The embodiments of the present application also provide a folding device, comprising:

[0029] The folding mechanism described above;

[0030] The shell is detachably connected with the connecting piece.

[0031] In some embodiments, the rotating shaft assembly further comprises:

[0032] The swing arm piece is rotatably arranged at one end of the connecting piece, and is movably inserted into the rotating shaft cover at the other end.

[0033] The pin piece is movably arranged through the swing arm piece and the connecting piece.

[0034] The folding device is closed, the two housings drive the connecting piece and the door plate piece to rotate relatively, synchronously drive the cam piece, the swing arm piece and the torsion arm to rotate, the torsion arm compresses the torsion spring piece to the fixed body, so that the torsion spring piece is in the energy storage state, to provide damping force when the folding device is closed, and then improve the operation comfort of the folding device, at the same time, the two swing arm pieces drive the two housings to slide outward relative to the cam piece, so that the two housings close together; when the folding device is unfolded, the two housings drive the connecting piece and the door plate piece to rotate away from each other, synchronously drive the cam piece, the swing arm piece and the torsion arm to rotate, the torsion spring piece is in the energy release state to provide elastic force, and drive the torsion arm to rotate, at the same time, the two swing arm pieces drive the two housings to slide inward relative to the cam piece, so that the two housings are separated and unfolded, so as to reduce the required starting torque when unfolding, and then improve the operation comfort and enhance the reliability. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 The folding device provided by the embodiment of the application is shown in the perspective structural schematic diagram.

[0036] Figure 2 For Figure 1 The folding mechanism of the folding device shown in the perspective structural schematic diagram.

[0037] Figure 3 For Figure 2 The partial enlarged schematic diagram of the folding mechanism shown.

[0038] Figure 4 For Figure 2 The structural exploded schematic diagram of the folding mechanism shown.

[0039] Figure 5 For Figure 4 The perspective structural schematic diagram of the cam piece, the pushing piece and the door plate piece in the folding mechanism shown.

[0040] Main element symbol explanation: folding device 1000, folding mechanism 100, shell 200, rotating shaft assembly 100a, support assembly 100b, rotating shaft seat 10, cam piece 20, cam surface 21, first protrusion 22, first groove 23, rotating body 24, gear body 25, bolt 26, oblique protrusion 27, pushing piece 30, pushing surface 31, second protrusion 32, second groove 33, guide shaft 34, elastic piece 40, torsion seat 50, fixed body 51, main body 52, protrusion body 53, torsion arm 60, open groove 61, torsion spring piece 70, rotating shaft piece 80, first rotating shaft 81, second rotating shaft 82, stop piece 90, gear piece 110, rotating shaft cover 120, cover body 121, installation groove 1211, middle plate 122, connecting piece 130, storage groove 131, containing groove 132, connecting body 133, sliding inclined groove 134, door plate piece 140, arc-shaped installation groove 141, arc-shaped guide groove 142, swing arm piece 150, arc-shaped part 151, column pin piece 160, support piece 170, arc-shaped sliding groove 171. DETAILED DESCRIPTION

[0041] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.

[0042] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application. The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included one or more of the features. In the description of the present application, it should be noted that the meaning of "a plurality of" is two or more, unless otherwise explicitly specified and limited.

[0043] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected or can communicate with each other, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned term in the present application can be understood according to the specific circumstances.

[0044] Some embodiments of the present application will be described in detail with reference to the drawings.

[0045] Please refer to Figure 1 and Figure 2 , the present application provides a folding device 1000, which comprises a folding mechanism 100 and a shell 200 detachably connected to the folding mechanism 100. The folding mechanism 100 comprises a rotating shaft assembly 100a and a support assembly 100b, and the support assembly 100b is connected with the rotating shaft assembly 100a and the shell 200 respectively to improve the operation comfort and enhance the reliability. Wherein, the number of the shell 200 is two, and the two shells 200 are respectively arranged on both sides of the rotating shaft assembly 100a and are respectively detachably connected to the support assembly 100b, and the two shells 200 are unfolded and closed through the folding mechanism 100. Exemplarily, the folding device 1000 can be a mobile phone, a tablet computer and a computer.

[0046] In order to facilitate the understanding of the present application, a three-dimensional coordinate system is established in part of the drawings, the first direction is the Y-axis direction shown in Figure 1 , the second direction is the X-axis direction shown in Figure 1 , and the third direction is the Z-axis direction shown in Figure 1 , and the first direction, the second direction and the third direction are perpendicular to each other.

[0047] Please refer to Figure 2 , Figure 3 and Figure 4 , the rotating shaft assembly 100a comprises a rotating shaft seat 10, a cam member 20, a pushing member 30, an elastic member 40 and a rotating shaft member 80. The cam member 20 is rotatably arranged in the rotating shaft seat 10, the pushing member 30 is slidably arranged on one side of the cam member 20 along the first direction and is in cam abutment with the cam member 20, and the pushing member 30 is configured to slide relative to the rotating shaft seat 10 under the pushing of the cam member 20. The rotating shaft member 80 is movably arranged in the rotating shaft seat 10, the cam member 20 and the pushing member 30 along the first direction, and the cam member 20 can rotate around the rotating shaft member 80. The elastic member 40 is configured to provide elastic force to make the cam member 20 and the pushing member 30 abut each other.

[0048] Please refer to Figure 3 and Figure 4In order to allow the cam member 20 to be automatically opened, the rotating shaft assembly 100a further comprises a torsion seat 50, a torsion arm 60 and a torsion spring member 70. The torsion seat 50 is arranged adjacent to the rotating shaft seat 10, and the torsion arm 60 is rotatably arranged in the torsion seat 50. The torsion spring member 70 is in abutment with the torsion arm 60, and is configured to be in an energy storage state when the torsion arm 60 rotates in a preset direction, and to be in an energy release state when the torsion arm 60 resets, so as to provide a torsion force and drive the torsion arm 60 to rotate automatically. The rotating shaft member 80 is movably arranged in the torsion seat 50, the torsion arm 60 and the torsion spring member 70 in a first direction, and the torsion arm 60 is rotatable about the rotating shaft member 80. Exemplarily, the elastic member 40 can be a spring, and the torsion spring member 70 can be a torsion spring.

[0049] In this way, through the above arrangement, when the folding device 1000 is closed, the torsion arm 60 rotates in a preset direction and compresses the torsion spring member 70, so that the torsion spring member 70 is in an energy storage state, thereby providing a damping force for the closure of the folding device 1000, so as to improve the operation comfort of the folding device 1000; when the folding device 1000 is unfolded, the torsion spring member 70 is in an energy release state to provide a torsion force and drive the torsion arm 60 to reset, thereby reducing the required starting torque when the folding device 1000 is unfolded, and thus improving the operation comfort of the folding device 1000 and enhancing the reliability thereof; in addition, when the folding device 1000 is closed to a preset angle or unfolded to a preset angle, the cam member 20 drives the housing 200 to rotate about the rotating shaft member 80, and the elastic member 40 provides an elastic force to drive the cam member 20 and the abutting member 30 to abut against each other, so as to make the folding device 1000 hover at a preset angle, thereby meeting different use requirements of the user.

[0050] It can be understood that the hovering angle of the folding device 1000 can be 0°, 30°, 60°, 90°, 120°, 150°, 180°, etc.

[0051] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments, the cam member 20 is provided with a cam surface 21 on the side facing the pushing member 30, the cam surface 21 is provided with a plurality of first protrusions 22, the plurality of first protrusions 22 are arranged at intervals along the rotation direction of the cam member 20, and a first groove 23 is formed between any two adjacent first protrusions 22. The pushing member 30 is provided with a pushing surface 31 on the side facing the cam member 20, the pushing surface 31 is provided with a plurality of second protrusions 32, the plurality of second protrusions 32 are arranged at intervals along the rotation direction of the cam member 20, the plurality of second protrusions 32 correspond to the plurality of first protrusions 22 one by one, a second groove 33 is formed between any two adjacent second protrusions 32, and the first protrusion 22 and the first groove 23 are matched with the corresponding second protrusion 32 and the second groove 33, respectively. For example, the number of the first protrusions 22 and the second protrusions 32 can be two, three, four, etc., and in the present embodiment, the number of the first protrusions 22 and the second protrusions 32 is three.

[0052] In this way, through the above arrangement, in the process of hovering the folding device 1000 to the preset angle, the cam member 20 rotates around the rotating shaft member 80, the first protrusion 22 abuts against the groove wall of the corresponding second groove 33 to push the pushing member 30 to compress the elastic member 40, so that the first protrusion 22 moves out of the corresponding second groove 33, and at the same time, the second protrusion 32 moves out of the corresponding first groove 23, when the end face of the first protrusion 22 corresponds to the end face of the corresponding second protrusion 32, the elastic member 40 provides elastic force to drive the end face of the first protrusion 22 and the end face of the corresponding second protrusion 32 to abut against each other, thereby ensuring that the folding device 1000 stably hovers to the preset angle; when the folding device 1000 cancels the hovering state, the cam member 20 rotates around the rotating shaft member 80, the first protrusion 22 and the second protrusion 32 move out of position, and the elastic member 40 provides elastic force to drive the second protrusion 32 to move into the corresponding first groove 23, and at the same time, the first protrusion 22 moves into the corresponding second groove 33, thereby realizing stable cancellation of the hovering state of the folding device 1000.

[0053] Please refer to Figure 4 and Figure 5 In some embodiments, the number of the cam member 20 and the rotating shaft member 80 is two, the two cam members 20 are arranged at intervals along the second direction, each cam member 20 comprises a rotating body 24 and a gear body 25, the rotating body 24 is rotatably arranged in the rotating shaft seat 10, the gear body 25 is arranged on the side of the rotating body 24 facing the pushing member 30 and is detachably connected with the rotating body 24, the side of the gear body 25 away from the rotating body 24 abuts against the cam of the pushing member 30, and each rotating shaft member 80 is arranged in a gear body 25 and a corresponding rotating body 24 along the first direction, respectively. Among them, the gear bodies 25 of the two cam members 20 are engaged.

[0054] Thus, through the above arrangement, when the folding device 1000 is unfolded or closed, the two engaged cam members 20 rotate synchronously, thereby ensuring that the two housings 200 connected by the two cam members 20 also rotate synchronously, avoiding uneven stress on the two housings 200 due to asynchronous rotation, and further ensuring smooth opening and closing of the folding device 1000, thereby improving the operation comfort and reliability of the folding device 1000.

[0055] Please refer to Figure 3 and Figure 4 In some embodiments, the rotating shaft assembly 100a further comprises two gear members 110, which are arranged in the second direction between the two cam members 20 and are engaged with each other, and each gear member 110 is rotatably connected to the rotating shaft seat 10 and the pushing member 30 at two ends thereof in the first direction, and the two gear members 110 are engaged with a gear body 25, respectively.

[0056] Due to the limited installation space of the folding device 1000, the cam member 20 needs to be designed to be small according to the installation and use requirements. Thus, through the above arrangement, the two gear members 110 are engaged with the corresponding cam members 20, respectively, thereby optimizing the space layout of the folding device 1000, and ensuring that the two cam members 20 drive the two housings 200 to rotate synchronously, thereby stably improving the operation comfort of the folding device 1000.

[0057] Please refer to Figure 3 and Figure 4 In some embodiments, the rotating shaft assembly 100a further comprises a stop member 90, which is arranged in the second direction and spaced apart from the pushing member 30, and the stop member 90 and the pushing member 30 abut the two ends of the elastic member 40, respectively. The rotating shaft member 80 is movably arranged in the stop member 90 and rotatably connected to the stop member 90.

[0058] Thus, through the above arrangement, the stop member 90 and the pushing member 30 abut the two ends of the elastic member 40, respectively, thereby limiting the two ends of the elastic member 40, which is conducive to the elastic member 40 stably providing elastic force to drive the pushing member 30 and the cam member 20 to abut each other, thereby ensuring stable use of the folding device 1000.

[0059] Please refer to Figure 4 In some embodiments, the rotating shaft member 80 comprises a first rotating shaft 81 and a second rotating shaft 82. The first rotating shaft 81 and the second rotating shaft 82 are arranged in the first direction and spaced apart from each other. The first rotating shaft 81 is movably arranged in the rotating shaft seat 10, the pushing member 30, the elastic member 40, and the stop member 90 in the first direction and rotatably connected to the rotating shaft seat 10 and the stop member 90. The cam member 20 rotates around the first rotating shaft 81. The second rotating shaft 82 is movably arranged in the torsion seat 50, the torsion arm 60, and the torsion spring member 70 in the first direction and rotatably connected to the torsion seat 50. The torsion arm 60 rotates around the second rotating shaft 82.

[0060] Thus, through the above arrangement, the rotating shaft member 80 is formed in a split structure, facilitating the assembly of the corresponding components of the rotating shaft member 80, which is conducive to the rapid assembly of the folding device 1000, thereby improving the assembly efficiency of the folding device 1000.

[0061] Referring to Figure 3 and Figure 4 In some embodiments, the torsion arm 60 is provided with an open slot 61, which is arranged on the side of the torsion arm 60 facing the torsion spring member 70. The torsion spring member 70 is inserted into the open slot 61 at one end adjacent to the torsion arm 60, and the slot wall of the open slot 61 in the second direction perpendicular to the first direction abuts the torsion spring member 70.

[0062] Thus, through the above arrangement, the open slot 61 limits the torsion spring member 70, preventing displacement or falling of the torsion spring member 70 during use of the folding device 1000, thereby ensuring that the torsion arm 60 stably pushes the torsion spring member 70 through the slot wall of the open slot 61, thereby improving the use stability and reliability of the folding device 1000.

[0063] Referring to Figure 3 and Figure 4 In this embodiment, the number of elastic members 40 in the rotating shaft assembly 100a is six, the number of pushing members 30 is two, and the number of stop members 90 is two. Three elastic members 40 and another three elastic members 40 are arranged on both sides of the rotating shaft seat 10 in the first direction, and the three elastic members 40 on the same side of the rotating shaft seat 10 are arranged in the second direction. Two rotating shaft members 80 are respectively arranged in the two outermost elastic members 40 of the three elastic members 40 on the same side. Two pushing members 30 are arranged on both sides of the rotating shaft seat 10 in the first direction, each pushing member 30 abutting the three elastic members 40 on the same side of the rotating shaft seat 10, and each pushing member 30 being provided with a guide shaft 34 on the side away from the rotating shaft seat 10, the guide shaft 34 being arranged in the elastic member 40 in the middle position of the three elastic members 40 on the same side of the rotating shaft seat 10, and the guide shaft 34 guiding the compression direction or the stretching direction of the elastic member 40. Among them, the two side walls of the cam member 20 in the first direction are respectively provided with cam surfaces 21, and the two side walls of the cam member 20 in the first direction abut the corresponding pushing members 30. Two stop members 90 are arranged on both sides of the cam member 20 in the first direction, and each stop member 90 abuts the three elastic members 40 on the same side of the rotating shaft seat 10.

[0064] Further, in the embodiment, the number of the torsion arms 60 and the torsion spring members 70 in the rotation shaft assembly 100a is two. The two torsion arms 60 are arranged in the second direction and rotatably arranged in the torsion seat 50 respectively, and the two torsion spring members 70 are arranged in the second direction and correspond to the two torsion arms 60 respectively, and the two rotation shaft members 80 are arranged in the first direction in a torsion arm 60 and the corresponding torsion spring member 70 respectively.

[0065] Thus, through the above arrangement, the number of the elastic members 40 and the torsion spring members 70 is increased according to the use requirement, which ensures that the elastic members 40 and the torsion spring members 70 provide a preset size of elastic force when the folding device 1000 is used, which is beneficial to the smooth use of the folding device 1000, and further improves the operation comfort.

[0066] It can be understood that in other embodiments, the number of the elastic members 40 and the torsion spring members 70 can also be adjusted according to the use requirement, so as to stably use the folding device 1000 and improve the operation comfort.

[0067] Please refer to Figure 4 , specifically, the torsion seat 50 includes a main body 52, a protruding body 53 and a fixed body 51. The main body 52 is adjacent to one side of the rotation shaft seat 10, and the two torsion arms 60 are rotatably arranged in the main body 52 in the second direction. The side wall of the main body 52 in the first direction is provided with the protruding body 53, and the fixed body 51 is connected with the end of the main body 52 away from the main body 52, and the main body 52, the protruding body 53 and the fixed body 51 form two accommodating spaces (not shown in the figure). The two accommodating spaces are located on both sides of the protruding body 53 in the second direction and accommodate the two torsion spring members 70 respectively. Among them, the rotation shaft member 80 is arranged in the main body 52, the torsion arm 60, the torsion spring member 70 and the fixed body 51 in the first direction, so that the torsion arm 60 is rotatably connected with the main body 52.

[0068] Thus, through the above arrangement, the torsion seat 50 can form two accommodating spaces to accommodate two torsion spring members 70 respectively, so as to limit the position of the torsion spring member 70 and ensure that the torsion spring member 70 stably provides elastic force.

[0069] Please refer to Figure 3 , Figure 4 and Figure 5In some embodiments, the support assembly 100b comprises a hinge cover 120, a connecting piece 130, and a door plate 140, the hinge base 10 and the torsion base 50 are detachably connected to the hinge cover 120, the pushing piece 30 is slidingly arranged on the hinge cover 120, the connecting piece 130 is rotatably arranged on one side of the hinge cover 120, the connecting piece 130 is provided with a receiving groove 131, a containing groove 132, and a connecting body 133, the receiving groove 131 and the containing groove 132 are arranged at intervals, the receiving groove 131 is configured to receive one end of the cam 20 away from the torsion base 50, the containing groove 132 is configured to receive one end of the torsion arm 60 away from the torsion base 50, the door plate 140 is arranged on one side of the hinge cover 120 and is provided with an arc-shaped mounting groove 141, the arc-shaped mounting groove 141 is matched with the connecting body 133, and the arc-shaped mounting groove 141 receives the connecting body 133.

[0070] Specifically, in the present embodiment, the number of the connecting piece 130 and the door plate 140 is two, the two connecting pieces 130, the two door plates 140, the two cams 20, the two torsion arms 60, and the two housings 200 are one-to-one corresponding, the two connecting pieces 130 are slidingly connected with the corresponding cam 20 and the corresponding torsion arm 60 respectively, the two door plates 140 are rotatably connected with the corresponding connecting piece 130 respectively, and the two housings 200 are detachably connected with the corresponding connecting piece 130 respectively.

[0071] In this way, through the above arrangement, the connecting piece 130 is slidingly connected with the cam 20 and the torsion arm 60 through the receiving groove 131 and the containing groove 132 respectively, and the connecting body 133 is rotatably connected with the door plate 140 through the connecting body 133 and the arc-shaped mounting groove 141, so that the housing 200 slides relative to the cam 20 to open outward when unfolded, and slides relative to the cam 20 to close inward when closed, thereby ensuring smooth use of the folding device 1000 and improving the smoothness of use of the folding device 1000.

[0072] Further, the folding device 1000 further comprises a flexible screen (not shown in the figure), which covers the upper surfaces of the two housings 200 and the hinge cover 120 in the third direction. In this way, through the specific arrangement of the above support assembly 100b, the two housings 200 can continue to rotate by a preset angle after being parallel in the third direction, so that the door plate 140 and the hinge cover 120 form a water drop-shaped containing space containing the flexible screen, and the stable closing of the two housings 200 is determined, thereby avoiding the gap of the folding device 1000 after being closed.

[0073] Please refer to Figure 4In some embodiments, the hinge cover 120 comprises a cover body 121 and a middle plate 122, the cover body 121 is provided with a mounting groove 1211, the hinge assembly 100a is arranged in the mounting groove 1211 and detachably connected with the cover body 121, and the middle plate 122 is arranged at the opening of the mounting groove 1211 and detachably connected with the cover body 121.

[0074] In this way, through the above arrangement, the hinge cover 120 can accommodate the hinge assembly 100a through the mounting groove 1211, which is conducive to the stable assembly of the hinge assembly 100a to the hinge cover 120, and optimizes the structural layout of the folding mechanism 100.

[0075] Please refer to Figure 3 and Figure 4 In some embodiments, the hinge assembly 100a further comprises a swing arm 150, a pin 160 and a support 170. One end of the swing arm 150 is rotatably arranged on the connecting piece 130, the other end of the swing arm 150 is movably arranged in the hinge cover 120, and the swing arm 150 is provided with an arc-shaped portion 151 adjacent to the end of the hinge cover 120. The pin 160 is movably arranged in the swing arm 150 and the connecting piece 130. The support 170 is detachably arranged on the hinge cover 120 and is provided with an arc-shaped sliding groove 171, the arc-shaped sliding groove 171 is matched with the arc-shaped portion 151, and the arc-shaped portion 151 is slidably arranged in the arc-shaped sliding groove 171. The support 170 is provided with two arc-shaped sliding grooves 171, and the two arc-shaped sliding grooves 171 are arranged in the second direction and correspond to the two swing arms 150.

[0076] In this way, by sliding the arc-shaped portion 151 in the arc-shaped sliding groove 171, the swing arm 150 can smoothly slide during the opening and closing of the folding device 1000, improving the operation comfort of the folding device 1000. In addition, the arc-shaped portion 151 is also used to avoid the flexible screen during use of the folding device 1000, so as to prevent the swing arm 150 from scratching the flexible screen. In addition, the middle plate 122 and the support 170 cooperate to limit the swing arm 150, preventing the swing arm 150 from disengaging from the hinge cover 120 when moving relative to the hinge cover 120, which is conducive to the stable use of the folding device 1000.

[0077] It can be understood that the cam 20 and the torsion arm 60 are both provided with arc-shaped structures at their specific positions to avoid the flexible screen and prevent the cam 20 and the torsion arm 60 from scratching the flexible screen.

[0078] Please refer to Figure 3 , Figure 4 and Figure 5 In some embodiments, the door plate 140 is provided with an arc-shaped guide groove 142, the end of the cam 20 is provided with a latch 26 perpendicular to the rotation direction of the cam 20, and the latch 26 is movably arranged in the arc-shaped guide groove 142.

[0079] Thus, by the above arrangement, the latch 26 is movably arranged in the arc-shaped guide slot 142, so that the door plate 140 and the cam 20 are connected in sliding manner, so that the door plate 140 slides relative to the cam 20 when closing, so that the two door plates 140 and the hinge cover 120 stably form a water-drop-shaped accommodating space after the folding device 1000 is closed.

[0080] Please refer to Figure 4 and Figure 5 In some embodiments, the receiving groove 131 and the accommodating groove 132 are both provided with a sliding inclined groove 134 in the first direction, and the sliding inclined groove 134 is arranged obliquely relative to the second direction. The cam 20 and the torsion arm 60 are both provided with an inclined protrusion 27 in the first direction, and the inclined protrusion 27 is matched with the sliding inclined groove 134, and the inclined protrusion 27 is slidably arranged in the sliding inclined groove 134.

[0081] Thus, by matching the sliding inclined groove 134 and the inclined protrusion 27, the movement direction of the connecting piece 130 is limited, so that the two connecting pieces 130 can continue to rotate relative to each other by a predetermined angle after the two housings 200 are parallel in the third direction, so that the folding device 1000 is stably closed.

[0082] When the folding device 1000 is closed, the two housings 200 drive the connecting pieces 130 and the door plates 140 to rotate relative to each other, synchronously drive the cam 20, the swing arm 150 and the torsion arm 60 to rotate, and the torsion spring 70 is compressed to the fixed body 51, so that the torsion spring 70 is in an energy storage state to provide a damping force when the folding device 1000 is closed, thereby improving the operation comfort of the folding device 1000. At the same time, the two swing arms 150 drive the two housings 200 to slide outward relative to the cam 20, so that the two housings 200 are closed by moving close to each other; when the folding device 1000 is unfolded, the two housings 200 drive the connecting pieces 130 and the door plates 140 to rotate away from each other, synchronously drive the cam 20, the swing arm 150 and the torsion arm 60 to rotate, the torsion spring 70 is in an energy release state to provide a spring force, and drives the torsion arm 60 to rotate, and at the same time, the two swing arms 150 drive the two housings 200 to slide inward relative to the cam 20, so that the two housings 200 are separated and unfolded, so as to reduce the required starting torque when unfolding, thereby improving the operation comfort and enhancing the reliability.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A rotating shaft assembly, characterized in that, The application relates to a rotating shaft assembly. The rotating shaft assembly comprises: a rotating shaft base; a cam member rotatably arranged on the rotating shaft base; a pushing member slidably arranged on one side of the cam member in a first direction and in cam contact with the cam member, the pushing member being configured to slide relative to the rotating shaft base under the pushing of the cam member; a resilient member configured to provide elastic force to make the cam member and the pushing member abut each other; a torsion base arranged adjacent to the rotating shaft base; a torsion arm rotatably arranged on the torsion base; a torsion spring member in contact with the torsion arm, the torsion spring member being configured to be in an energy storage state when the torsion arm rotates in a preset direction and in an energy release state when the torsion arm resets to provide torsion and drive the torsion arm to rotate automatically; and a rotating shaft member movably arranged in the rotating shaft base, the cam member, the pushing member, the resilient member, the torsion base, the torsion arm and the torsion spring member in the first direction, the cam member and the torsion arm rotating around the rotating shaft member.

2. The hinge assembly of claim 1, wherein The cam member is provided with a cam surface on the side facing the pushing member, the cam surface being provided with a plurality of first protrusions, the first protrusions being arranged at intervals in the rotating direction of the cam member, and a first groove being formed between two adjacent first protrusions; the pushing member is provided with a pushing surface on the side facing the cam member, the pushing surface being provided with a plurality of second protrusions, the second protrusions being arranged at intervals in the rotating direction of the cam member, the second protrusions corresponding to the first protrusions one by one, and a second groove being formed between two adjacent second protrusions, the first protrusions and the first groove being matched with the corresponding second protrusions and the second groove respectively.

3. The pivot assembly of claim 1, wherein, The number of the cam members and the rotating shaft members is both two, the two cam members being arranged at intervals in a second direction perpendicular to the first direction, each of the cam members comprising a rotating body rotatably arranged on the rotating shaft base and a gear body arranged on the side of the rotating body facing the pushing member and detachably connected with the rotating body, the side of the gear body away from the rotating body being in cam contact with the pushing member, each of the rotating shaft members being movably arranged in the corresponding gear body and rotating body in the first direction; wherein the gear bodies of the two cam members are in mesh.

4. The hinge assembly of claim 3, wherein The rotating shaft assembly further comprises: two gear members arranged between the two cam members in the second direction, the two gear members being in mesh, and each of the gear members being rotatably connected to the rotating shaft base and the pushing member at two ends thereof in the first direction, the two gear members being in mesh with the corresponding gear body respectively.

5. The pivot assembly of claim 1, wherein, The rotating shaft assembly further comprises: a stop member arranged at intervals with the pushing member, the stop member and the pushing member being in contact with two ends of the resilient member respectively; wherein the rotating shaft member movably passes through the stop member and is rotatably connected with the stop member.

6. The pivot assembly of claim 5, wherein, The rotating shaft member comprises: A first rotating shaft and a second rotating shaft are arranged in a first direction, the first rotating shaft is movably arranged in the rotating shaft seat, the pushing piece, the elastic piece and the stopper in the first direction, and is rotationally connected with the rotating shaft seat and the stopper, the cam piece rotates around the first rotating shaft, the second rotating shaft is movably arranged in the torsion seat, the torsion arm and the torsion spring piece in the first direction, and is rotationally connected with the torsion seat, the torsion arm rotates around the second rotating shaft.

7. The pivot assembly of claim 1, wherein, The torsion arm is provided with an open slot, the open slot is arranged on the side of the torsion arm facing the torsion spring piece, one end of the torsion spring piece adjacent to the torsion arm is inserted into the open slot, and the slot wall of the open slot in a second direction perpendicular to the first direction abuts against the torsion spring piece.

8. A folding mechanism characterized by, The rotating shaft assembly comprises: The rotating shaft assembly according to any one of claims 1-7; A support assembly comprises a rotating shaft cover, a connecting piece and a door plate piece, the rotating shaft seat and the torsion seat are detachably connected to the rotating shaft cover, the pushing piece is slidingly arranged in the rotating shaft cover, the connecting piece is rotationally arranged on one side of the rotating shaft cover, the connecting piece is provided with a receiving slot, a containing slot and a connecting body, the receiving slot and the containing slot are arranged in a spaced manner, the receiving slot is configured to receive one end of the cam piece away from the torsion seat, the containing slot is configured to receive one end of the torsion arm away from the torsion seat, the door plate piece is arranged on one side of the rotating shaft cover and is provided with an arc-shaped mounting slot, the arc-shaped mounting slot is matched with the connecting body, and the arc-shaped mounting slot receives the connecting body.

9. A folding device, characterized by The rotating shaft assembly comprises: The folding mechanism according to claim 8; A shell is detachably connected with the connecting piece.

10. The folding apparatus of claim 9, wherein, The rotating shaft assembly further comprises: A swing arm piece, one end of the swing arm piece is rotationally arranged in the connecting piece, and the other end of the swing arm piece is movably inserted into the rotating shaft cover; A pin piece is movably arranged in the swing arm piece and the connecting piece.

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