Rotating shaft mechanism and display terminal

Abstract

A rotating shaft mechanism (20) and a display terminal (01), which relate to the technical field of folding display, and are used for alleviating the problem of abnormal noise occurring inside the folding display terminal (01) during a bending process. In the rotating shaft mechanism (20), a first swing arm (221) and a second swing arm (231) are respectively rotationally connected to a main shaft (21); the first swing arm (221) is slidably connected to a first fixing frame (222) in a first direction; and the second swing arm (231) is slidably connected to a second fixing frame (232) in the first direction. The extension direction of an abutting face of the first swing arm (221) intersects the first direction. In the first direction, a first damping member (24) elastically abuts against the first fixing frame (222). During an acting force exerted by the first damping member (24) on the first swing arm (221), a component force in the first direction can cause elastic deformation at the position where the first damping member (24) abuts against the first fixing frame (222), thereby reducing or eliminating a gap on an opposite side of the position where the first damping member (24) elastically abuts against the first fixing frame (222). Similarly, the extension direction of an abutting face of the second swing arm (231) intersects the first direction, and in the first direction, a second damping member (25) elastically abuts against the second fixing frame (232).

Description

A rotating shaft mechanism and a display terminal

[0001] The present application claims priority to the Chinese patent application No. 202410483258.5, filed on April 19, 2024, and entitled "A rotating shaft mechanism and a display terminal", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the field of folding display technology, and in particular to a rotating shaft mechanism and a display terminal. BACKGROUND

[0003] With the continuous development of display technology, folding display terminals have gradually become a development trend of future mobile electronic products. In the unfolded state, the folding display terminal can obtain a larger display area and improve the viewing effect. In the folded state, the folding display terminal can obtain a smaller volume and be convenient for users to carry. However, in the folding process, the folding display terminal may generate abnormal noise, thereby reducing the user experience. SUMMARY

[0004] The present application provides a rotating shaft mechanism and a display terminal to alleviate the problem of abnormal noise generated in the folding process of the folding display terminal.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical solutions:

[0006] In an aspect of the present application, a rotating shaft mechanism is provided, which includes a main shaft, a first swing arm, a first fixed frame, a second swing arm, a second fixed frame, a first damping member and a second damping member. The first swing arm is rotationally connected with the main shaft, and the first swing arm is slidingly connected with the first fixed frame along a first direction perpendicular to the axis. The second swing arm is located on both sides of the main shaft with the first swing arm, and the first fixed frame and the second fixed frame are located on both sides of the main shaft. The second swing arm is rotationally connected with the main shaft, and the second swing arm is slidingly connected with the second fixed frame along the first direction. The first damping member is arranged on the first fixed frame and slidingly connected with the first fixed frame along a second direction. The first damping member abuts against the first swing arm, and at the abutting position of the first swing arm and the first damping member, the extension direction of the abutting surface of the first swing arm intersects the first direction. The first damping member elastically abuts against the first fixed frame along the first direction, and the second direction is parallel to the axis. In addition, the second damping member is arranged on the second fixed frame and slidingly connected with the second fixed frame along the second direction. The second damping member abuts against the second swing arm, and at the abutting position of the second swing arm and the second damping member, the extension direction of the abutting surface of the second swing arm intersects the first direction. The second damping member elastically abuts against the second fixed frame along the first direction.

[0007] In summary, since the first swing arm is rotationally connected with the main shaft and slidingly connected with the first fixed frame, the first fixed frame can be rotated relative to the main shaft through the first swing arm, so that the first fixed frame is in a folded or unfolded state relative to the main shaft. In addition, by the first damping member abutting against the first swing arm, a damping force in the first direction can be applied to the first swing arm, so as to limit the sliding position of the first swing arm relative to the first fixed frame, and realize the hovering of the rotating position of the first fixed frame relative to the main shaft.

[0008] On this basis, when the first swing arm slides relative to the first fixed frame in the first direction, since the first damping member abuts against the first swing arm, the first swing arm will apply a pushing force to the first damping member abutting against the first swing arm. The pushing force can cause the first damping member to apply a reaction force to the first swing arm opposite to the pushing force. Since the extension direction of the abutting surface of the first swing arm at the abutting position of the first swing arm and the first damping member intersects with the first direction, the component force of the reaction force applied by the first damping member to the first swing arm in the first direction can be the damping force. In addition, since the first damping member elastically abuts against the first fixed frame in the first direction, the damping force in the first direction can cause the first damping member and the first fixed frame to elastically deform at the abutting position. The elastic deformation can generate the reaction force of the damping force. In this way, the reaction force can reduce or eliminate the gap between the first damping member and the first fixed frame at the opposite side of the elastic abutting position of the first damping member and the first fixed frame, so as to reduce the probability that the first swing arm swings and hits the first fixed frame to produce abnormal sound. Similarly, the reaction force generated by the elastic abutting of the second damping member and the second fixed frame can also reduce or eliminate the gap between the second damping member and the second fixed frame at the opposite side of the elastic abutting position of the second damping member and the second fixed frame, so as to achieve the purpose of relieving abnormal sound.

[0009] In an alternative embodiment, the first fixed frame is provided with a first mounting slot, and the first damping member is arranged in the first mounting slot. The first damping member comprises a first spring and a first sliding block. The first spring is arranged along the second direction, and the first spring is connected to the first fixed frame away from the fixed end of the first swing arm. In addition, the first sliding block is slidingly connected to the sidewall of the first mounting slot along the second direction. The first spring is arranged in the first sliding block towards the free end of the first swing arm. The first sliding block abuts against the first swing arm. On this basis, the rotating shaft mechanism further comprises a first elastic abutting portion, which is located between the first sliding block and the sidewall of the first mounting slot along the first direction, and the first sliding block abuts against the sidewall of the first mounting slot through the first elastic abutting portion. Based on this, when the first swing arm slides relative to the first fixed frame along the first direction, the component force of the thrust applied by the first swing arm to the first sliding block will cause the first sliding block to move closer to the sidewall of the first mounting slot. Since the first elastic abutting portion is located between the first sliding block and the sidewall of the first mounting slot, and the first sliding block abuts against the sidewall of the first mounting slot through the first elastic abutting portion, the first sliding block will accumulate on the first elastic abutting portion during the process of moving closer to the sidewall of the first mounting slot, so that the first elastic abutting portion is elastically deformed. In this way, the reaction force generated by the elastic deformation can make the opposite side of the elastic abutting position of the first damping member and the first fixed frame also be in the state of abutment, so as to reduce the probability of impact caused by the first damping member to the first fixed frame.

[0010] In an alternative embodiment, the first elastic abutting portion comprises a first elastic arm having oppositely arranged first and second ends. The first end of the first elastic arm is away from the first swing arm, and the first end of the first elastic arm is connected to the side surface of the first sliding block. The second end of the first elastic arm is towards the first swing arm. The first elastic arm abuts against the sidewall of the first mounting slot, and the first elastic arm and the first sliding block have a first gap therebetween. In this case, during the process of the first swing arm sliding relative to the first fixed frame along the first direction, since the first elastic arm abuts against the sidewall of the first mounting slot, the component force of the thrust applied by the first swing arm to the first sliding block will cause the sidewall of the first mounting slot to reversely press the first elastic arm. In addition, the first elastic arm and the first sliding block have the first gap therebetween, which can provide a space for the elastic deformation of the first elastic arm, so that the first elastic arm can be elastically deformed to generate the reaction force for reducing the impact phenomenon.

[0011] In an alternative embodiment, the rotating shaft mechanism further comprises a first block-shaped abutting portion disposed on the sidewall of the first mounting slot, and the first block-shaped abutting portion is in direct contact with the first elastic arm. In this way, the first block-shaped abutting portion can protrude from the sidewall of the first mounting slot, so that the first elastic arm can indirectly abut against the sidewall of the first mounting slot through the first block-shaped abutting portion. In this case, the area of the first block-shaped abutting portion for direct contact with the first elastic arm is smaller than the area of the sidewall of the first mounting slot for direct contact with the first elastic arm, thereby facilitating the reduction of the control accuracy of the flatness of the surface of the first block-shaped abutting portion for abutting against the first elastic arm during mass production. In addition, the sidewall of the first mounting slot provided with the first block-shaped abutting portion has a fourth gap between the first block-shaped abutting portion and the first sliding block. In this way, when the first elastic arm directly abuts against the first block-shaped abutting portion disposed on the sidewall of the first mounting slot, the sidewall of the first mounting slot can avoid direct contact with the first sliding block by providing the fourth gap between the sidewall of the first mounting slot and the first sliding block, thereby reducing the frictional force of the first sliding block during sliding in the second direction.

[0012] In an alternative embodiment, a first recess is formed in the sidewall of the first mounting slot. The first elastic abutting portion comprises a second elastic arm, and the two ends of the second elastic arm are connected to the two sidewalls of the first recess opposite to each other. The second elastic arm protrudes towards the first sliding block and is surrounded by the first recess to form a second gap. The second elastic arm abuts against the first sliding block. In this case, during the sliding of the first swing arm relative to the first fixed frame in the first direction, since the second elastic arm protrudes towards the first sliding block and abuts against the first sliding block, the component of the pushing force applied by the first swing arm to the first sliding block will press the second elastic arm. In addition, the second elastic arm is surrounded by the first recess to form the second gap, which can provide a space for elastic deformation of the second elastic arm, so that the second elastic arm can elastically deform to generate the above-mentioned reaction force, thereby reducing the probability of impact.

[0013] In an alternative embodiment, the rotating shaft mechanism further comprises a second block-shaped abutting portion. The second block-shaped abutting portion is disposed on the surface of the second elastic arm for abutting against the first sliding block. In this way, the second block-shaped abutting portion can protrude from the surface of the second elastic arm for abutting against the first sliding block, so that the first sliding block can indirectly abut against the second elastic arm through the second block-shaped abutting portion. Similarly, the area of the second block-shaped abutting portion for direct contact with the first sliding block is smaller than the area of the surface of the second elastic arm for direct contact with the first sliding block, thereby facilitating the reduction of the control accuracy of the flatness of the surface of the second block-shaped abutting portion for abutting against the first sliding block during mass production.

[0014] In an alternative embodiment, the side wall of the first sliding block is provided with a second groove. The first elastic abutting part comprises an elastic buffer, which is embedded in the second groove and connected with the first sliding block. A part of the elastic buffer exposed from the second groove abuts against the side wall of the first mounting groove. In this case, during the sliding of the first swing arm relative to the first fixed frame in the first direction, the component of the pushing force applied by the first swing arm to the first sliding block in the first direction will press the elastic buffer, so that the elastic buffer is elastically deformed, thereby generating the above-mentioned reaction force, and the probability of impact is reduced.

[0015] In an alternative embodiment, the first sliding block is further provided with a first connecting hole penetrating the first sliding block, the first connecting hole is in communication with the second groove, and a part of the elastic buffer is embedded in the first connecting hole. In this way, the parts of the elastic buffer embedded in the second groove and the first connecting hole are both connected with the first sliding block, so that the connecting area between the elastic buffer and the first sliding block is increased, and the reliability of the connection between the elastic buffer and the first sliding block is improved.

[0016] In an alternative embodiment, the first swing arm is provided with a first cam surface, and the first sliding block is provided with a second cam surface. The first cam surface comprises a first surface and a second surface which are sequentially away from the main shaft, and the second cam surface abuts against the first surface when the first fixed frame is in the folded state. When the first fixed frame is in the unfolded state, the second cam surface abuts against the second surface, and the extension directions of the first surface and the second surface are both perpendicular to the first direction. In this way, when the first fixed frame is in the unfolded state or the folded state, the force applied by the first sliding block to the first swing arm is perpendicular to the first surface or the second surface, so that the component of the force in the first direction can be used as the damping force applied to the first swing arm by the first damping member.

[0017] In an alternative embodiment, the first surface has a first included angle a1 with the extension direction of the main shaft, and the second surface has a second included angle a2 with the extension direction of the main shaft; wherein a1 > a2. Thus, the second surface is more inclined than the first surface. Based on this, when the abutting position of the first swing arm and the first sliding block is switched from the first surface to the second surface in the first cam surface, due to the different inclining directions of the first surface and the second surface and the greater inclination of the second surface, in the case that there is a gap between the first sliding block and the side wall of the first mounting groove, the first sliding block will quickly move towards the side wall of the first mounting groove at the position of the gap, thereby causing a greater impact on the side wall of the first mounting groove and resulting in the phenomenon of damage to the side wall. In order to solve the above problem, the first elastic abutting portion can be located on the side of the first sliding block facing the main shaft. In this case, the direction of the reaction force generated by the elastic deformation of the first elastic abutting portion is towards the opposite side of the first elastic abutting portion, so that the first sliding block is pressed against the side wall of the first mounting groove on the opposite side to be in an abutting state with the side wall of the first mounting groove, so that there is no or approximately no gap between the first sliding block and the side wall of the first mounting groove on the opposite side. Therefore, even if the abutting position of the first swing arm and the first sliding block is switched from the first surface to the second surface, it is difficult for the first sliding block to quickly move towards the side wall of the first mounting groove at the opposite side, thereby reducing the probability of the above impact and improving the reliability of the product.

[0018] In an alternative embodiment, the shaft mechanism includes two first elastic abutting portions, namely a first inner elastic abutting portion and a first outer elastic abutting portion. The first inner elastic abutting portion is located on the side of the first sliding block facing the main shaft, and the first outer elastic abutting portion is located on the side of the first sliding block away from the main shaft. In this way, the sliding direction of the first sliding block, namely the second direction, can be elastically abutted with the side wall of the first mounting groove on both sides of the first sliding block. Therefore, during the sliding of the first swing arm relative to the first fixed frame in the first direction, due to the elastic deformation of the above-mentioned first inner elastic abutting portion and first outer elastic abutting portion, the two sides of the first sliding block can be kept in an abutting state with the side wall of the first mounting groove, thereby reducing the phenomenon of swing of the first sliding block to cause impact and abnormal sound.

[0019] In an alternative embodiment, the first elastic abutting portion is arranged on the end of the first sliding block close to the first swing arm relative to the end of the first sliding block close to the fixed end of the first spring. In this way, during the sliding of the first swing arm relative to the first fixed frame in the first direction, when the elastic deformation of the first elastic abutting portion generates the above-mentioned reaction force, due to the arrangement of the first elastic abutting portion on the end of the first sliding block close to the first swing arm, the gap between the first sliding block on the opposite side of the first elastic abutting portion and the side wall of the first mounting groove can be reduced, thereby reducing the probability of swing of the first sliding block in the first direction towards the end of the first swing arm.

[0020] In an optional implementation, a first sliding groove extending in the second direction is formed in the sidewall of the first mounting groove. The rotating shaft mechanism further comprises a first guide portion arranged on the side surface of the first sliding block, and a portion of the first guide portion extends into the first sliding groove and is in sliding cooperation with the first sliding groove. In this way, the first damping member can be in sliding cooperation with the first fixed frame through the first guide portion.

[0021] In an optional implementation, the first elastic abutting portion comprises a first elastic arm, and a first gap is formed between the first elastic arm and the first sliding block. The second end of the first elastic arm is connected to the first guide portion, and a third gap is formed between the first elastic arm and the first guide portion, and the third gap is in communication with the first gap. In this way, by connecting the second end of the first elastic arm to the first guide portion, the rigidity of the first elastic arm can be improved, and sufficient reaction force can be generated when the first elastic arm is elastically deformed, so as to reduce or even eliminate the gap between the first sliding block on the side of the first elastic abutting portion and the sidewall of the first mounting groove. In addition, by connecting the third gap to the first gap, the first elastic arm can be connected to the first guide portion at all places, which can avoid the phenomenon that the first elastic arm is difficult or impossible to elastically deform.

[0022] In an optional implementation, a first groove is formed in the sidewall of the first mounting groove, and the first elastic abutting portion comprises a second elastic arm. The two ends of the second elastic arm are connected to the two sidewalls of the first groove opposite to each other, the second elastic arm protrudes towards the first sliding block, and the second elastic arm and the first groove surround a second gap. The second gap is in communication with the first sliding groove. In this way, a portion of the first sliding groove can also serve as a space for the elastic deformation of the second elastic arm, so that the second elastic arm is more likely to elastically deform after being pressed.

[0023] In an optional implementation, a second groove is formed in the sidewall of the first sliding block. The first elastic abutting portion comprises an elastic buffer, and the elastic buffer is embedded in the second groove and connected to the first sliding block. The first guide portion is provided with a second connecting hole penetrating through the first guide portion, the second connecting hole is in communication with the second groove, and a portion of the elastic buffer is embedded in the second connecting hole. In this way, the portions of the elastic buffer embedded in the second groove and the second connecting hole can be connected to the first sliding block, so as to improve the reliability of the connection between the elastic buffer and the first sliding block.

[0024] In another aspect of the present application, a display terminal is provided, which comprises a display screen, a first housing, a second housing and any one of the hinge mechanisms as described above. The hinge mechanism is located between the first housing and the second housing, the display screen is connected to the first housing and the second housing, and the display screen covers the hinge mechanism. The display terminal has the same technical effects as the hinge mechanisms provided in the foregoing embodiments, and thus repeated description is omitted here. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a structural schematic diagram of a display terminal according to an embodiment of the present application;

[0026] Fig. 2 is an exploded view of the display terminal in Fig. 1;

[0027] Fig. 3 is a schematic diagram of a folded state of the display terminal in Fig. 1;

[0028] Fig. 4 is a schematic diagram of another folded state of the display terminal in Fig. 1;

[0029] Fig. 5A is an exploded view of the display terminal in Fig. 1;

[0030] Fig. 5B is a schematic diagram of a hinge mechanism according to an embodiment of the present application;

[0031] Fig. 6 is an exploded view of the hinge mechanism in Fig. 5A;

[0032] Fig. 7A is a structural schematic diagram of the hinge mechanism in Fig. 5A;

[0033] Fig. 7B is a structural schematic diagram of a first swing arm in Fig. 7A;

[0034] Fig. 8 is another structural schematic diagram of the hinge mechanism in Fig. 5A;

[0035] Fig. 9 is a schematic diagram of part of components of the hinge mechanism according to an embodiment of the present application;

[0036] Fig. 10 is yet another structural schematic diagram of the hinge mechanism in Fig. 5A;

[0037] Fig. 11 is a top view in the direction of A in Fig. 7A;

[0038] Fig. 12 is a top view in the direction of B in Fig. 8;

[0039] Fig. 13 is another schematic diagram of part of components of the hinge mechanism according to an embodiment of the present application;

[0040] Fig. 14 is yet another schematic diagram of part of components of the hinge mechanism according to an embodiment of the present application;

[0041] Fig. 15 is still another structural schematic diagram of the hinge mechanism in Fig. 5A;

[0042] Fig. 16 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0043] Fig. 17 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0044] Fig. 18 is an enlarged view of a portion of Fig. 17;

[0045] Fig. 19 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0046] Fig. 20 is a schematic view of a portion of Fig. 19;

[0047] Fig. 21 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0048] Fig. 22 is a top view of Fig. 21 along the direction E;

[0049] Fig. 23 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0050] Fig. 24 is a schematic view of a portion of Fig. 23;

[0051] Fig. 25 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0052] Fig. 26 is a schematic view of a portion of Fig. 25;

[0053] Fig. 27 is another schematic view of the rotating shaft mechanism in Fig. 5A;

[0054] Fig. 28 is another schematic view of the rotating shaft mechanism in Fig. 5A.

[0055] Label: 01 - display terminal; 10 - display screen; 11 - first housing; 12 - second housing; 20 - rotating shaft mechanism; 21 - main shaft; 211 - base; 212 - shaft cover; 221 - first swing arm; 222 - first fixing frame; 231 - second swing arm; 232 - second fixing frame; 24 - first damping member; 25 - second damping member; 31 - first rotating connecting piece; 310 - first rotating shaft; 2211 - swing arm body; 2212 - circular arc part; 401 - first cam surface; 402 - second cam surface; S1 - first surface; S2 - second surface; 2222 - second sliding groove; 2220 - first sliding groove; 2221 - first mounting groove; 241 - first spring; 242 - first sliding block; 51 - first guide part; 251 - second spring; 252 - second sliding block; 27 - first rotating arm; 28 - second rotating arm; 201 - first elastic abutting part; 2011 - first elastic arm; 101 - first gap; 103 - third gap; 61 - first block-shaped abutting part; 104 - fourth gap; 2012 - second elastic arm; 102 - second gap; 200 - first recess; 62 - second block-shaped abutting part; 2013 - elastic buffer; 301 - first connecting hole; 302 - second connecting hole; 202 - second recess; 201a - first inner elastic abutting part; 202b - first outer elastic abutting part; 203 - second elastic abutting part; 2321 - second mounting groove. DETAILED DESCRIPTION

[0056] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments.

[0057] Hereinafter, the terms "first", "second", and the like are used only for description convenience, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second", and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified and limited, the meaning of "a plurality of" is two or more.

[0058] In the present application, unless otherwise explicitly specified and limited, the term "connection" should be understood broadly, for example, "connection" can be fixed mechanical connection, or detachable mechanical connection, or integral; or "connection" can be direct connection, or indirect connection through intermediate medium.

[0059] In the embodiments of the present application, "vertical" and "parallel" respectively represent approximately vertical and approximately parallel within a certain error range, which can be a range of deviation angle less than or equal to 5°, 8° or 10° with respect to absolute vertical and absolute parallel, which is not specifically limited here.

[0060] In the embodiments of the present application, the orientation terms such as "upper", "lower", "left", "right" and the like can include but are not limited to the orientation defined by the relative placement of the components in the drawings. It should be understood that these directional terms can be relative concepts, which are used for relative description and clarification, and can change accordingly according to the change of the placement of the components in the drawings.

[0061] In the drawings of the embodiments of the present application, the components are represented by arrows; the parts are represented by arrows; the openings, holes and the like are represented by arrows with wavy lines at the ends.

[0062] The display terminal provided in the embodiments of the present application can be applied to various communication systems or communication protocols, such as Bluetooth (BT) communication technology, global positioning system (GPS) communication technology, global system of mobile communication (GSM) communication technology, wireless fidelity (WiFi) communication technology, wideband code division multiple access wireless (WCDMA) communication technology, long term evolution (LTE), 5G communication technology and other future communication technologies. The display terminal in the embodiments of the present application can be a mobile phone, a pad, a notebook computer, a smart home, a smart wearable device (for example, a smart watch, a smart bracelet, smart glasses, a smart helmet), a virtual reality (VR) display terminal, an augmented reality (AR) display terminal and the like. The display terminal can also be a handheld device, a computing device or other processing device connected to a wireless modem having a wireless communication function, a vehicle-mounted device, a display terminal in a 5G network or a display terminal in a future evolved public land mobile network (PLMN), and the like, which are not limited in the embodiments of the present application.

[0063] In some embodiments, the display terminal described above can have a display function, in which case the display terminal can include a display screen and a processor electrically connected to the display screen. The processor can provide display data to the display screen to drive the display screen to display images. For example, the processor described above can include one or more processing units, such as an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units can be independent devices or integrated into one or more processors.

[0064] In addition, the display terminal 01 described above can also include an external memory interface, an internal memory, a universal serial bus (USB) interface, a charging management module, a power management module, a battery, an antenna, a mobile communication module, a wireless communication module, an audio module, a speaker, a receiver, a microphone, an earphone interface, a sensor module, a key, and a camera, etc. electrically connected to the processor. The sensor module can include a pressure sensor, a gyroscope sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a distance sensor, a proximity light sensor, a fingerprint sensor, a temperature sensor, a touch sensor, an ambient light sensor, and a bone conduction sensor, etc.

[0065] For example, the following is for convenience, and the display terminal 01 is taken as an example of a folding mobile phone. In this case, the display terminal 01 can include a display screen 10 as shown in FIG. 1. In some embodiments of the present application, the display screen 10 can be a self-luminous display screen, such as an organic light emitting diode (OLED) display screen, a micro or mini light-emitting diode display screen, or a quantum dot light emitting diode (QLED) display screen, etc. Alternatively, in some other embodiments of the present application, the display screen 10 can also be a liquid crystal display (LCD) that requires a backlight.

[0066] In addition, in order to support the display screen 10 during folding or unfolding of the display terminal 01, the display terminal 01 can further include two housings, for example, a first housing 11 and a second housing 12, and a rotating shaft mechanism 20 arranged on the back of the display screen 10 (a surface opposite to the display surface of the display screen 10), as shown in FIG. 2. The rotating shaft mechanism 20 is located between the first housing 11 and the second housing 12, and the first housing 11 and the second housing 12 are connected with the rotating shaft mechanism 20, so that the first housing 11 and the second housing 12 can rotate around the axis O1-O2 of the rotating shaft mechanism 20. The display screen 10 is connected with the first housing 11 and the second housing 12, and the display screen 10 can cover the rotating shaft mechanism 20.

[0067] For example, any one of the first housing 11 and the second housing 12 can include a middle frame and a back cover arranged on the side of the middle frame away from the display screen 10. The middle frame and the back cover can enclose a space for accommodating circuit boards, batteries, cameras, sensors and other components.

[0068] Therefore, the display screen 10 can be connected with the rotating shaft mechanism 20, the first housing 11 and the second housing 12. When the display terminal 01 is in the unfolded state as shown in FIG. 1, the included angle β between the first housing 11 and the second housing 12 is or is approximately 180°. Alternatively, within a certain angle tolerance, for example, the included angle β between the first housing 11 and the second housing 12 can also be 165°, 177° or 185°, etc. At this time, the surfaces of the first housing 11 and the second housing 12 facing the display screen 10 can be or approximately in the same plane.

[0069] Alternatively, when the initial state of the display terminal 01 is the unfolded state as shown in FIG. 1, the user can hold the display terminal 01 to apply an external force to the first housing 11 and the second housing 12 to fold the first housing 11 and the second housing 12, so that the first housing 11 and the second housing 12 rotate relative to the axis O1-O2 of the rotating shaft mechanism 20, thereby causing the display screen 10 to deform as shown in FIG. 3, and further causing the display terminal 01 to be in the folded state as shown in FIG. 3 or FIG. 4.

[0070] For example, in some embodiments of the present application, the folding state of the display terminal 01 can mean that the included angle β between the first housing 11 and the second housing 12 can be less than 180°. For example, as shown in FIG. 3, the included angle β between the first housing 11 and the second housing 12 can be 0°<β<180°. Alternatively, as shown in FIG. 4, the included angle β between the first housing 11 and the second housing 12 can be 0°, and in this case, the folding state of the display terminal 01 can also be referred to as a closed state. Alternatively, in the case where a certain angle tolerance is allowed, the above-mentioned closed state can also be that the included angle β between the first housing 11 and the second housing 12 is 2° or 5° or the like.

[0071] In order to describe the positional relationship of each component in the display terminal 01, an XYZ coordinate system is established in the drawings. For example, the XY plane can be parallel to the display surface (the surface for displaying images) of the display screen 10 in the unfolded state of the display terminal 01 as shown in FIG. 1. The X direction can be perpendicular to the thickness of the display terminal 01 or the thickness of the above-mentioned housing, and perpendicular to the axis O1-O2 of the rotation shaft mechanism 20. The Y direction is parallel to the axis O1-O2. In addition, the Z direction is the stacking direction of the first housing 11 (or the second housing 12) and the display screen 10, that is, the Z direction can be the thickness direction of the display terminal 01 or the thickness direction of the above-mentioned housing. For the convenience of description, the X direction is referred to as the first direction X, the Y direction is referred to as the second direction Y, and the Z direction is referred to as the third direction Z.

[0072] For example, the above-mentioned example is based on the case where the display screen 10 is wrapped between the first housing 11 and the second housing 12 in the folding state of the display terminal 01 as shown in FIG. 4. In this case, the display terminal 01 can be referred to as an inner folding display terminal. Alternatively, in some embodiments of the present application, the first housing 11 and the second housing 12 are wrapped by the display screen 10 when the display terminal is in the folding state, and the display surface of the display screen 10 serves as the outer side of the display terminal. In this case, the display terminal 01 can be referred to as an outer folding display terminal. The folding mode of the display terminal 01 is not limited in the present application, and for the convenience of description, the display terminal 01 is taken as the above-mentioned inner folding display terminal for example.

[0073] In addition, the structure of the rotating shaft mechanism 20 shown in FIG. 2 is exemplified as follows. In some embodiments of the present application, as shown in FIG. 5A, the rotating shaft mechanism 20 can include a main shaft 21, a first swing arm 221, a first fixing frame 222, a second swing arm 231, a second fixing frame 232, a first damping member 24, and a second damping member 25. The first swing arm 221 and the second swing arm 231 can be respectively located on both sides of the main shaft 21. The first fixing frame 222 and the second fixing frame 232 can be respectively located on both sides of the main shaft 21. The first damping member 24 and the second damping member 25 can be respectively located on both sides of the main shaft 21. The extension direction of the main shaft 21 is the second direction Y, and the axis O1-O2 of the main shaft 21 is the axis O1-O2 of the rotating shaft mechanism 20.

[0074] On this basis, as shown in FIG. 5A, the first swing arm 221 is arranged close to the main shaft 21 relative to the first fixing frame 222. The first fixing frame 222 can be connected with the first housing 11. For example, the first fixing frame 222 and the first housing 11 can be detachably connected through thread connection or the like. Alternatively, for example, the first fixing frame 222 and the first housing 11 can be connected through adhesive bonding or the like. Alternatively, the first fixing frame 222 can be integrally connected with the first housing 11 through an injection molding process, which is not limited in the present application.

[0075] In addition, the first swing arm 221 can be rotationally connected with the main shaft 21. Moreover, the first swing arm 221 is also slidingly connected with the first fixing frame 222 along the first direction X (represented by a solid arrow in FIG. 5A). As known from the above, the first direction X is perpendicular to the axis O1-O2. In this case, when the first swing arm 221 rotates relative to the main shaft 21, the first swing arm 221 can also slide relative to the first fixing frame 222 along the first direction X, so that the first swing arm 221 can move close to or away from the main shaft 21. In this way, the first fixing frame 222 can be driven to rotate around the main shaft 21 by the first swing arm 221.

[0076] In some embodiments of the present application, as shown in FIG. 5A, the main shaft 21 can include a base 211 and a shaft cover 212, and the shaft cover 212 is buckled on the base 211 to form a containing cavity (not shown in FIG. 5A) surrounded by the shaft cover 212 and the base 211. A part of the first swing arm 221 can be arranged in the containing cavity to be rotationally connected with the main shaft 21.

[0077] As shown in FIG. 5B, the rotating connection between the first swing arm 221 and the main shaft 21 (as shown in FIG. 5A) can be understood as that the rotating connection between the first swing arm 221 and the base 211 of the main shaft 21 has a rotating axis Q1-Q2. The rotating axis Q1-Q2 can be located on the side of the axis O1-O2 of the main shaft 21 facing the first swing arm 221, and the rotating axis Q1-Q2 is parallel to the axis O1-O2 of the main shaft 21. In this case, the first swing arm 221 can rotate relative to the main shaft 21 around the rotating axis Q1-Q2. Similarly, the rotating connection between the second swing arm 231 and the base 211 has a rotating axis Q3-Q4. The rotating axis Q3-Q4 can be located on the side of the axis O1-O2 of the main shaft 21 facing the second swing arm 231, and the rotating axis Q3-Q4 is parallel to the axis O1-O2 of the main shaft 21. In this case, the second swing arm 231 can rotate relative to the main shaft 21 around the rotating axis Q3-Q4.

[0078] FIG. 5A is an example of the display terminal 01 having one rotating shaft mechanism 20. In other embodiments of the present application, the display terminal 01 can have at least two rotating shaft mechanisms 20. The at least two rotating shaft mechanisms 20 can be arranged along the axis O1-O2. In addition, the main shafts 21 of the plurality of rotating shaft mechanisms 20 can be shared. Alternatively, the main shafts 21 of the plurality of rotating shaft mechanisms 20 can be independently provided, which is not limited in the present application.

[0079] In addition, in order to enable the first swing arm 221 to rotate relative to the main shaft 21, as shown in FIG. 6, the first swing arm 221 can include a swing arm body 2211 and a circular arc portion 2212 connected as an integral structure. In addition, the rotating shaft mechanism 20 can further include a first rotating connecting piece 31, which can be arranged in the accommodating cavity formed by the base 211 and the shaft cover 212 of the main shaft 21. The circular arc portion 2212 of the first swing arm 221 can be located in the accommodating cavity and rotatably connected with the first rotating connecting piece 31.

[0080] As shown in FIG. 6, the first rotating connecting piece 31 can include at least one first rotating shaft 310. The circular arc portion 2212 of the first swing arm 221 can be rotatably connected with the first rotating shaft 310, so that the entire first swing arm 221 can be rotatably connected with the main shaft 21 through the first rotating connecting piece 31.

[0081] Alternatively, as another example, the first swing arm 221 can be rotatably connected with the main shaft 21 in the form of a virtual axis. The virtual axis can refer to the axis of the circular arc structure of a component with a circular arc structure. Two rotatably connected components can rotate relative to the virtual axis. Moreover, with the relative rotation of the two rotatably connected components, the position of the virtual axis remains unchanged.

[0082] For example, the first swing arm 221 can include the above-mentioned arcuate portion 2212 (as shown in FIG. 6). The arcuate portion 2212 can be regarded as the above-mentioned arcuate structure, and the axis of the arcuate portion 2212 can be regarded as the above-mentioned virtual axis. In addition, an arcuate groove can be formed between the base 211 and the shaft cover 212. Based on this, the arcuate portion 2212 of the first swing arm 221 can extend into the arcuate groove in the main shaft 21. The arcuate portion 2212 and the arcuate groove are matched in shape, so that the arcuate portion 2212 can slide in the arcuate groove to achieve the rotational connection of the first swing arm 221 and the main shaft 21.

[0083] On this basis, as known from the above, as shown in FIG. 7A, in the process of rotating the first swing arm 221 relative to the main shaft 21 along the axis O1-O2, the first swing arm 221 can also slide relative to the first fixed frame 222 along the first direction X (represented by a solid arrow in FIG. 7A). For example, the first fixed frame 222 is provided with at least one second sliding groove 2222 (FIG. 7A is an example of two second sliding grooves 2222). The second sliding groove 2222 extends along the first direction X. A part of the first swing arm 221 extends into the second sliding groove 2222 to slide along the extension direction of the second sliding groove 2222.

[0084] In this case, as shown in FIG. 7A, when the first swing arm 221 rotates clockwise and the first swing arm 221 slides relative to the first fixed frame 222 along the first direction X towards the main shaft 21 (i.e., along the solid hollow arrow), the first fixed frame 222 gradually turns to the unfolded state, so that the entire display terminal is in the above-mentioned unfolded state. Alternatively, as shown in FIG. 8, when the first swing arm 221 rotates counterclockwise and the first swing arm 221 slides relative to the first fixed frame 222 along the first direction X away from the main shaft 21 (i.e., along the dashed hollow arrow). At this time, the first fixed frame 222 gradually turns to the folded state, so that the entire display terminal is in the above-mentioned folded state.

[0085] Based on this, in order to enable the first fixed frame 222 to maintain the unfolded state shown in FIG. 7A, or maintain the folded state shown in FIG. 8. As shown in FIG. 7A, the pivot mechanism 20 can further include the above-mentioned first damping member 24, which can be provided on the first fixed frame 222. Along the second direction Y, the first damping member 24 can be in sliding connection with the first fixed frame 222, so that the first damping member 24 can move towards or away from the first swing arm 221 along the above-mentioned second direction Y.

[0086] Further, as shown in FIG. 7A, the first damping member 24 can abut against the first swing arm 221. At the abutting position between the first swing arm 221 and the first damping member 24, the extension direction of the abutting surface of the first swing arm 221 can intersect the first direction X. For example, the first swing arm 221 can have a first cam surface 401, and the first damping member 24 can have a second cam surface 402. As shown in FIG. 7B, the first cam surface 401 can include a first surface S1 and a second surface S2 connected in sequence. Further, as shown in FIG. 7A, the first surface S1 and the second surface S2 are arranged in sequence away from the main shaft 21. The extension direction of the first surface S1 and the second surface S2 can intersect the first direction X, so that the first surface S1 and the second surface S2 can be arranged obliquely relative to the first direction X.

[0087] As shown in FIG. 7A, when the first swing arm 221 rotates clockwise and slides relative to the first fixed frame 222 along the first direction X towards the main shaft 21 (i.e., along the solid hollow arrow), the first fixed frame 222 can be in the unfolded state. At this time, a portion of the second cam surface 402 can abut against the second surface S2.

[0088] In this case, the first damping member 24 can apply an acting force F2 to the first swing arm 221, which is perpendicular to the second surface S2. The component of the acting force F2 along the first direction X can be the damping force f2. The damping force f2 can hinder the first swing arm 221 from sliding relative to the first fixed frame 222 along the first direction X away from the main shaft 21, so that the position of the first swing arm 221 can be fixed relative to the first fixed frame 222. In this way, the first swing arm 221 can be kept in the unfolded state, and the first fixed frame 222 can be kept in the current unfolded state.

[0089] Alternatively, as shown in FIG. 8, when the first swing arm 221 rotates counterclockwise and slides relative to the first fixed frame 222 along the first direction X away from the main shaft 21 (i.e., along the dashed hollow arrow), the first fixed frame 222 can be in the folded state. At this time, the second cam surface 402 of the first damping member 24 abuts against the first surface S1 of the first cam surface 401 of the first swing arm 221. In this case, the first damping member 24 can apply an acting force F2 to the first swing arm 221, which is perpendicular to the first surface S1. The component of the acting force F2 along the first direction X can be the damping force f2. The damping force f2 can hinder the first swing arm 221 from sliding relative to the first fixed frame 222 along the first direction X towards the main shaft 21. In this way, the first swing arm 221 can be kept in the folded state, and the first fixed frame 222 can be kept in the current folded state.

[0090] In some embodiments of the present application, in order to enable the first damping member 24 to abut against the first swing arm 221 to enable the first damping member 24 to apply a damping force along the second direction Y to the first swing arm 221, a first mounting slot 2221 can be formed on the first fixed frame 222, as shown in FIG. 9. The first damping member 24 shown in FIG. 8 can be arranged in the first mounting slot 2221. Based on this, as shown in FIG. 10, the first damping member 24 can include a first sliding block 242 and at least one first spring 241. Wherein, FIG. 10 is an example taking two first springs 241 as an example, and the number of the first springs 241 is not limited in the present application.

[0091] Wherein, continuing to refer to FIG. 10, the first spring 241 can be arranged along the second direction Y. The first spring 241 has oppositely arranged fixed end a1 and free end a2, the fixed end a1 is arranged away from the first swing arm 221, and the free end a2 is arranged towards the first swing arm 221. In addition, the fixed end a1 of the first spring 241 can be connected with the first fixed frame 222, so that the position of the fixed end a1 of the first spring 241 is fixed relative to the first fixed frame 222. The first sliding block 242 can be slidingly connected with the side wall of the first mounting slot 2221 along the second direction Y. The free end a2 of the first spring 241 can be arranged in the first sliding block 242, and the first spring 241 is in a compressed state, so that one end of the first sliding block 242 towards the first swing arm 221 abuts against the first swing arm 221.

[0092] For example, in order to enable the first sliding block 242 to be slidingly connected with the side wall of the first mounting slot 2221 along the second direction Y, continuing to refer to FIG. 9, a first sliding slot 2220 extending along the second direction Y is formed on the side wall of the first mounting slot 2221. In addition, continuing to refer to FIG. 10, the rotating shaft mechanism 20 further includes at least one first guide part 51. The first guide part 51 is arranged on the side of the first sliding block 242, for example, on any one of the two oppositely arranged side walls of the first sliding block 242 extending along the second direction Y in FIG. 10, two first guide parts 51 can be arranged on the side wall. The first guide part 51 can be connected with the first sliding block 242 as an integral structure. Part of the first guide part 51 extends into the first sliding slot 2220, and the first guide part 51 can be slidingly matched with the first sliding slot 2220. In this way, the first sliding block 242 can be slidingly connected with the first fixed frame 222 through the first guide part 51.

[0093] As can be seen from the above, continuing to refer to FIG. 10, the fixed end a1 of the first spring 241 is connected with the first fixed frame 222, and the free end a2 of the first spring 241 is arranged in the first sliding block 242. In this case, as shown in FIG. 11 (which is a kind of top view obtained along the A direction in FIG. 7A), the first sliding block 242 can be connected with the first fixed frame 222 through the first spring 241.

[0094] For example, the first slider 242 has the second cam surface 402. The following will take the first cam surface 401 and the second cam surface 402 as an example to illustrate the generation process of the damping force f2 exerted by the first damping member 24, which is mainly composed of the first spring 241 and the first slider 242, to the first swing arm 221.

[0095] For example, as shown in FIG. 11, when the first fixed frame 222 is in the unfolded state, the second cam surface 402 is in abutment with the second surface S2. The first swing arm 221 can exert a pushing force F1 on the first damping member 24, and the pushing force F1 can be perpendicular to the second surface S2. At this time, the pushing force F1 can cause the first spring 241 to compress and deform. The force F2 generated by the first spring 241 during the compression process is opposite to the pushing force F1 (i.e., F2 is the reaction force of F1), and thus the force F2 can be perpendicular to the second surface S2.

[0096] Based on this, the component of the force F2 along the first direction X can be used as the damping force f2 exerted by the first damping member 24 to the first swing arm 221. The damping force f2 can cause the second cam surface 402 of the first slider 242 to be in abutment with the second surface S2 in the first cam surface 401 of the first swing arm 221, thereby realizing the abutment of the first damping member 24 and the first swing arm 221.

[0097] Since the second surface S2 is inclined to the left, the first slider 242 in abutment with the second surface S2 can be located below the first swing arm 221. In this way, the damping force f2 exerted by the first damping member 24 to the first swing arm 221 can hinder the first swing arm 221 from sliding away from the main shaft 21 relative to the first fixed frame 222 along the first direction X, so as to keep the first fixed frame 222 in the unfolded state as shown in FIG. 7A, realize the hovering of the first fixed frame 222 relative to the rotation position of the main shaft 21, and achieve the purpose of keeping the entire display terminal in the unfolded state.

[0098] Alternatively, as shown in FIG. 8, when the first fixed frame 222 is in the folded state, the second cam surface 402 can be in abutment with the first surface S1. As known from the above, the first swing arm 221 exerts a pushing force F1 on the first damping member 24, so that the first damping member 24 generates a reaction force, i.e., an acting force F2, to the first swing arm 221. At this time, as shown in FIG. 12 (which is a top view obtained along the direction B in FIG. 8), the second surface S2 is inclined to the right, and the F2 has a damping force f2 in the first direction downward, which can hinder the first swing arm 221 from sliding in the first direction X relative to the first fixed frame 222 towards the main shaft 21, so as to keep the first fixed frame 222 in the folded state as shown in FIG. 8, achieve hovering of the first fixed frame 222 relative to the rotation position of the main shaft 21, and achieve the purpose of keeping the entire display terminal in the folded state.

[0099] As known from the above, when the display terminal is in the unfolded state shown in FIG. 11, the second cam surface 402 of the first slider 242 is in abutment with the second surface S2 of the first cam surface 401. When the display terminal is in the folded state shown in FIG. 12, the second cam surface 402 of the first slider 242 is in abutment with the first surface S1 of the first cam surface 401. Since the first surface S1 is inclined to the right and the second surface S2 is inclined to the left, i.e., the inclination directions of the first surface S1 and the second surface S2 are different, the intersection of the first surface S1 and the second surface S2 is the switching point of the first cam surface 401.

[0100] Based on this, when the user unfolds the display terminal, as shown in FIG. 13, the first swing arm 221 will slide relative to the first fixed frame 222 in the first direction X towards the main shaft 21 (i.e., in the direction of the solid-line hollow arrow in FIG. 13), and the second cam surface 402 gradually transitions from abutment with the first surface S1 to abutment with the second surface S2.

[0101] In the related art, during the sliding of the first swing arm 221 in the direction of the solid-line hollow arrow, the pushing force F1 exerted by the first swing arm 221 on the first damping member 24 has an upward component f1. At this time, the upward component f1 causes a gap H (for example, at C in FIG. 13) to be generated between the first slider 242 and the first fixed frame 222. In this case, when the abutment position of the first swing arm 221 and the first damping member 24 is switched by the switching point of the first cam surface 401 to the second surface S2, the pushing direction of the pushing force exerted by the first swing arm 221 on the first damping member 24 changes, causing the upward component f1 to disappear, so that the first damping member 24 moves downward to return to the initial position. During the resetting of the first damping member 24, the first fixed frame 222 will be impacted at the position of the gap H at C, causing abnormal sound to be generated, which reduces the user experience during the folding of the display terminal.

[0102] To solve the above problems, in some embodiments of the present application, as shown in FIG. 14, the first damping member 24 can elastically abut against the first fixed frame 222 along the first direction X. Wherein, the above-mentioned elastic abutment can be understood as that, under the action of external force, two components (for example, at least one of the first damping member 24 and the first fixed frame 222) elastically abut against each other will elastically deform at the abutment position. For example, in FIG. 14, one side of the first damping member 24 towards the main shaft 21 elastically abuts against the first fixed frame 222. That is, the position where the first damping member 24 elastically abuts against the first fixed frame 222 is located above in FIG. 14.

[0103] In this case, when the user flattens the display terminal, as shown in FIG. 14, the first swing arm 221 will slide relative to the first fixed frame 222 along the first direction X towards the main shaft 21 (i.e., slide along the solid arrow in FIG. 14). As described above, the first swing arm 221 will generate a pushing force F1 on the first damping member 24 abutting against the first swing arm 221 during the sliding process, and the pushing force F1 has a component f1 along the first direction X and towards the main shaft 21 (i.e., upwards). Based on this, since the first damping member 24 elastically abuts against the first fixed frame 222 along the first direction X, the first damping member 24 and the first fixed frame 222 will elastically deform at the abutment position. The above-mentioned elastic deformation can generate the above-mentioned reaction force F3.

[0104] Continuing as shown in FIG. 14, the direction of the above-mentioned reaction force F3 is opposite to the direction of the component f1, and the reaction force F3 is downward along the first direction X. In this way, the reaction force F3 can make the first damping member 24 and the first fixed frame 222 also in the state of abutment at the opposite side of the elastic abutment position of the first damping member 24 and the first fixed frame 222 (for example, at C below the elastic abutment position). In this case, when the abutment position of the first swing arm 221 and the first damping member 24 is quickly converted to the second surface S2 from the reversing point of the first cam surface 401, since the first damping member 24 and the first fixed frame 222 are in the state of abutment at C, that is, there is no or approximately no gap H between the first damping member 24 and the first fixed frame 222 at C, therefore the first damping member 24 does not swing towards the side of the first swing arm 221, and thus the first damping member 24 almost does not impact the first fixed frame 222 at C, thereby achieving the purpose of reducing the probability of generating abnormal sound during the bending process of the display terminal.

[0105] The above is an example of eliminating the gap H in FIG. 13 at position C below the second surface S2, with the first swing arm 221 sliding relative to the first fixed frame 222 along the first direction X towards the main shaft 21 during unfolding of the display terminal by the user. In other embodiments of the present application, when the first swing arm 221 slides relative to the first fixed frame 222 along the first direction X away from the main shaft 21 during folding of the display terminal by the user, the first damping member 24 and the first fixed frame 222 are in elastic abutment, and the gap between the first damping member 24 and the first fixed frame 222 can be reduced in probability, which will not be described again herein.

[0106] As can be seen from the above, as shown in FIG. 15, the rotating shaft mechanism 20 can include a second swing arm 231 and a second fixed frame 232. The second swing arm 231 is arranged close to the main shaft 21 relative to the second fixed frame 232. The second fixed frame 232 can be connected to the second housing 12 (as shown in FIG. 5A). The connection manner of the second fixed frame 232 and the second housing 12 can be obtained in the same way as the connection manner of the first fixed frame 222 and the first housing 11 (as shown in FIG. 5A), which will not be described again herein.

[0107] The second swing arm 231 is rotationally connected to the main shaft 21, and the second swing arm 231 can also be slidingly connected to the second fixed frame 232 along the first direction X. Similarly, when the second swing arm 231 rotates relative to the main shaft 21, the second swing arm 231 can also slide relative to the second fixed frame 232 along the first direction X, so that the second swing arm 231 can move close to or away from the main shaft 21. In addition, the rotational connection manner of the second swing arm 231 and the main shaft 21 can be obtained in the same way as the rotational connection manner of the first swing arm 221 and the main shaft 21, which will not be described again herein.

[0108] Similarly, in order to enable the first fixed frame 222 to maintain the unfolded state shown in FIG. 7A, or maintain the folded state shown in FIG. 8. As shown in FIG. 15, the rotating shaft mechanism 20 can also include the second damping member 25. The second damping member 25 can be arranged on the second fixed frame 232. The second damping member 25 can be slidingly connected to the second fixed frame 232 along the second direction Y, so that the second damping member 25 can move along the second direction Y towards or away from the second swing arm 231.

[0109] Further, as shown in FIG. 15, the second damping member 25 can be in abutment with the second swing arm 231. At the abutment position between the second swing arm 231 and the second damping member 25, the extension direction of the abutment surface of the second swing arm 231 can intersect the first direction X, so that the second damping member 25 can be used to apply a damping force along the first direction X to the second swing arm 231. The damping force can hinder the second damping member 25 from further sliding along the first direction X, so that the second swing arm 231 can be relatively fixed with the position of the second fixed frame 232. The arrangement of the cam surface of the second swing arm 231 for abutment with the second damping member 25 can be similarly derived from the arrangement of the first cam surface 401, which will not be described herein again.

[0110] In this way, the hovering of the second fixed frame 232 relative to the rotation position of the main shaft 21 can be achieved by the second damping member 25, so as to achieve the purpose of keeping the entire display terminal in the unfolded state as shown in FIG. 15 or in the folded state as shown in FIG. 16. For example, the second damping member 25 can include a second sliding block 252 and at least one second spring 251. The arrangement of the second sliding block 252 and the second spring 251 can be similarly derived from the arrangement of the first sliding block 242 and the first spring 241, which will not be described herein again.

[0111] Similarly, as shown in FIG. 15, when the user unfolds the display terminal 01, the second swing arm 231 will generate a pushing force F1 to the second damping member 25 in abutment therewith during the sliding process of the second swing arm 231 towards the main shaft 21. The pushing force F1 has a component f1 along the first direction X and towards the main shaft 21 (i.e. upwards). Based on this, along the first direction X, the second damping member 25 is in elastic abutment with the second fixed frame 232, so that an elastic deformation will occur at the abutment position between the second damping member 25 and the second fixed frame 232. The elastic deformation can generate a reaction force F3 of the component f1. The reaction force F3 can make the two sides of the second damping member 25 abut with the second fixed frame 232, so as to reduce the swing of the second damping member 25 towards the side of the second swing arm 231, achieve the probability of generating the above-mentioned gap H between the second damping member 25 and the second fixed frame 232, and realize the purpose of eliminating the gap.

[0112] On this basis, in order to further drive the first fixed frame 222 and the second fixed frame 232 to rotate around the axis O1-O2 of the main shaft 21, as shown in FIG. 15, the display terminal 01 can further include a first rotation arm 27 and a second rotation arm 28. The first rotation arm 27 can be rotationally connected with the first fixed frame 222 and the main shaft 21. The second rotation arm 28 can be rotationally connected with the second fixed frame 232 and the main shaft 21. The rotationally connected manner can be achieved by a rotation shaft or a virtual shaft, which will not be limited in the present application.

[0113] The above is an example of the elastic abutment between the first damping member 24 and the first fixed frame 222. In the embodiment of the present application, when other sliding components in the rotating shaft mechanism 20 slide and abut with the cooperating components through the cam surfaces, causing the cooperating components and the third components to generate gaps, the elastic abutment between the cooperating components and the third components can also achieve the purpose of eliminating the gaps. The types, structures, and positions of the sliding components, cooperating components, and third components are not limited in the present application.

[0114] The elastic abutment between the first damping member 24 and the first fixed frame 222 is described as an example. The elastic abutment between the second damping member 25 and the second fixed frame 232 has the same technical effects and can be obtained in the same way. As shown in FIG. 17, the first fixed frame 222 is provided with a first installation slot 2221, and the first damping member 24 can be arranged in the first installation slot 2221. In addition, the first damping member 24 can include a first spring 241 and a second sliding block 242. Based on this, in some embodiments of the present application, the rotating shaft mechanism 20 can further include a first elastic abutment portion 201. In the first direction X, the first elastic abutment portion 201 can be located between the first sliding block 242 and the side wall of the first installation slot 2221, and the first sliding block 242 can abut with the side wall of the first installation slot 2221 through the first elastic abutment portion 201.

[0115] As shown in FIG. 18 (which is a partial enlarged view of FIG. 17), when the user flattens the display terminal, causing the first swing arm 221 to slide relative to the first fixed frame 222 in the first direction X (for example, slide along the solid hollow arrow in FIG. 18), the component f1 of the pushing force F1 applied by the first swing arm 221 to the first sliding block 242 will cause the first sliding block 242 to move closer to the side wall of the first installation slot 2221, as described above. Since the first elastic abutment portion 201 is located between the first sliding block 242 and the side wall of the first installation slot 2221, and the first sliding block 242 abuts with the side wall of the first installation slot 2221 through the first elastic abutment portion 201, the first sliding block 242 will extrude the first elastic abutment portion 201 during the process of moving closer to the side wall of the first installation slot 2221, causing the first elastic abutment portion 201 to elastically deform.

[0116] In this way, the reaction force F3 generated by the elastic deformation of the first elastic abutting portion 201 is opposite to the direction of the force f1, so that the first elastic abutting portion 201 is pressed against the side wall of the first mounting groove 2221 at the position C, and the first elastic abutting portion 201 is in abutment with the side wall of the first mounting groove 2221 at the position C. When the abutment position of the first swing arm 221 and the first damping member 24 is switched from the first surface S1 to the second surface S2 of the first cam surface 401, the first damping member 24 is less likely to impact the first mounting groove 2221, and the reliability of the product is improved.

[0117] In this way, the first surface S1 of the first cam surface 401 of the first swing arm 221 has a first included angle a1 with the extension direction of the main shaft 21, i.e., the axis O1-O2, and the second surface S2 of the first cam surface 401 has a second included angle a2 with the extension direction of the main shaft 21, i.e., the axis O1-O2. In some embodiments, a1>a2, so that the second surface S2 is more inclined than the first surface S1.

[0118] In this way, the first surface S1 of the first cam surface 401 of the first swing arm 221 has a first included angle a1 with the extension direction of the main shaft 21, i.e., the axis O1-O2, and the second surface S2 of the first cam surface 401 has a second included angle a2 with the extension direction of the main shaft 21, i.e., the axis O1-O2. In some embodiments, a1>a2, so that the second surface S2 is more inclined than the first surface S1.

[0119] Therefore, as shown in FIG. 17, when the first elastic abutting portion 201 is located on the side of the first sliding block 242 facing the main shaft 21, the reaction force F3 generated by the elastic deformation of the first elastic abutting portion 201 is directed to the opposite side of the first elastic abutting portion 201, i.e., the position C, so that the first sliding block 242 is pressed against the side wall of the first mounting groove 2221 at the position C, and the first sliding block 242 is in abutment with the side wall of the first mounting groove 2221 at the position C. Therefore, even if the abutment position of the first swing arm 221 and the first sliding block 242 is switched from the first surface S1 to the second surface S2, the first sliding block 242 is less likely to quickly approach the side wall of the first mounting groove 2221 at the position C, so that the probability of the impact is more effectively reduced, and the reliability of the product is improved.

[0120] In addition, as shown in FIG. 17, it can be known from the above that the first swing arm 221 generates a pushing force on the first sliding block 242 towards one end of the first swing arm 221 during the sliding of the first swing arm 221 relative to the first fixed frame 222 along the first direction X, thereby causing the first sliding block 242 to swing towards one end of the first swing arm 221 along the first direction X. Therefore, in order to further reduce the impact of the first sliding block 242 on the side wall of the first mounting groove 2221 of the first fixed frame 222 during the above swinging, in some embodiments, the first elastic abutting portion 201 can be arranged at an end of the first sliding block 242 close to one end of the first swing arm 221 relative to the first spring 241 fixed end a.

[0121] In this way, as shown in FIG. 18, when the first swing arm 221 slides relative to the first fixed frame 222 along the first direction X, causing the first elastic abutting portion 201 to elastically deform to generate the above-mentioned reaction force F3, since the first elastic abutting portion 201 is arranged at an end of the first sliding block 242 close to one end of the first swing arm 221, the gap between the first sliding block 242 and the side wall of the first mounting groove 2221 on the side (i.e., at C) of the first elastic abutting portion 201 can be reduced, and the probability of the first sliding block 242 swinging towards one end of the first swing arm 221 along the first direction X can be further reduced.

[0122] The structure of the first elastic abutting portion 201 will be described in detail below. In some embodiments of the present application, the first elastic abutting portion 201 can include a first elastic arm 2011 as shown in FIG. 19. The first elastic arm 2011 can have a first end a3 and a second end a4 arranged opposite to each other. The first end a3 of the first elastic arm 2011 is arranged away from the first swing arm 221 relative to the second end a4, and the second end a4 of the first elastic arm 2011 is arranged towards the first swing arm 221 relative to the first end a3.

[0123] In addition, as shown in FIG. 20, the first end a3 of the first elastic arm 2011 is connected to the side surface of the first sliding block 242, for example, the first end a3 of the first elastic arm 2011 can be connected to the first sliding block 242 as an integral structure. For example, the first sliding block 242 and the first elastic arm 2011 connected as an integral structure can be formed by an injection molding process. The first elastic arm 2011 abuts against the side wall of the first mounting groove 2221 (as shown in FIG. 19). In addition, the first elastic arm 2011 and the first sliding block 242 can have a first gap 101 therebetween.

[0124] In this case, as shown in FIG. 19, during the process that the first swing arm 221 slides relative to the first fixed frame 222 along the first direction X, since the first elastic arm 2011 abuts against the sidewall of the first mounting slot 2221, the component force of the thrust force applied by the first swing arm 221 to the first sliding block 242 will cause the sidewall of the first mounting slot 2221 to reversely press the first elastic arm. As shown in FIG. 20, the first elastic arm 2011 and the first sliding block 242 have a first gap 101 therebetween, which can provide a space for the elastic deformation of the first elastic arm 2011, so that the first elastic arm 2011 can be elastically deformed to generate the above-mentioned reaction force F3 for reducing the occurrence of the impact phenomenon.

[0125] On this basis, in the case that the above-mentioned rotating shaft mechanism further comprises a first guide portion 51 as shown in FIG. 20, the second end a4 of the first elastic arm 2011 can also be connected with the first guide portion 51. For example, the first sliding block 242, the first elastic arm 2011 and the first guide portion 51 can be formed as an integral structure by an injection molding process. In addition, the first elastic arm 2011 and the first guide portion 51 can have a third gap 103 therebetween, which can be communicated with the first gap 101.

[0126] In this way, as shown in FIG. 20, by connecting the second end a4 of the first elastic arm 2011 with the first guide portion 51, the rigidity of the first elastic arm 2011 can be improved, and thus when the first elastic arm 2011 is elastically deformed, a sufficient reaction force F3 can be generated to reduce or even eliminate the gap between the first sliding block 242 and the sidewall of the first mounting slot 2221 on the side of the first elastic abutting portion 201 (i.e., at position C in FIG. 18). In addition, by communicating the third gap 103 with the first gap 101, it can be avoided that the first elastic arm 2011 is connected with the first guide portion 51 at all places, which can cause the first elastic arm 2011 to be difficult or impossible to be elastically deformed.

[0127] The above is an example of the case that the third gap 103 in FIG. 20 is communicated with the first gap 101. In other embodiments of the present application, in order to simplify the manufacturing process, the third gap 103 can not be communicated with the first gap 101.

[0128] As known from the above, the second end a4 of the first elastic arm 2011 abuts against the sidewall of the first mounting groove 2221, as shown in FIG. 19. For example, the second end a4 of the first elastic arm 2011 can be in direct contact with the sidewall of the first mounting groove 2221. The surface of the sidewall of the first mounting groove 2221 for abutting against the first elastic arm 2011 is a plane. In this case, during the mass production of the display terminal, the flatness of the surface of the sidewall of each first mounting groove 2221 for abutting against the first elastic arm 2011 needs to be accurately controlled, so as to ensure that the abutting degree of the first elastic arm 2011 against the sidewall of the first mounting groove 2221 in each display terminal meets the design requirement. In this way, the production precision of the product is required to be high, thereby increasing the production cost.

[0129] To solve the above problem, the rotating shaft mechanism 20 can further include a first block-shaped abutting portion 61, as shown in FIG. 21. The first block-shaped abutting portion 61 is arranged on the sidewall of the first mounting groove 2221, and the first block-shaped abutting portion 61 is in direct contact with the first elastic arm 2011. In this way, the first block-shaped abutting portion 61 can protrude from the sidewall of the first mounting groove 2221, so that the first elastic arm 2011 can indirectly abut against the sidewall of the first mounting groove 2221 through the first block-shaped abutting portion 61. In this case, the area of the direct contact between the first block-shaped abutting portion 61 and the first elastic arm 2011 is smaller than the area of the direct contact between the sidewall of the first mounting groove 2221 and the first elastic arm 2011, thereby facilitating the reduction of the control precision of the flatness of the surface of the first block-shaped abutting portion 61 for abutting against the first elastic arm 2011 during the mass production.

[0130] On this basis, the sidewall of the first mounting groove 2221 provided with the first block-shaped abutting portion 61 can have a fourth gap 104 between the first block-shaped abutting portion 61 and the first slider 242, as shown in FIG. 22 (a top view in the direction E in FIG. 21). In this way, in the case that the first elastic arm 2011 directly abuts against the first block-shaped abutting portion 61 arranged on the sidewall of the first mounting groove 2221, the fourth gap 104 between the sidewall of the first mounting groove 2221 and the first slider 242 can avoid the direct contact between the sidewall of the first mounting groove 2221 and the first slider 242, and can reduce the frictional force of the first slider 242 during the sliding in the second direction Y.

[0131] Alternatively, in some other embodiments of the present application, the first elastic abutting portion for achieving the elastic abutment between the first sliding block 242 in the first damping member 24 and the sidewall of the first installation slot 2221 in the first fixed frame 222 can also include a second elastic arm 2012 as shown in FIG. 23. In this case, the sidewall of the first installation slot 2221 is provided with a first groove 200, and the two ends of the second elastic arm 2012 can be connected with the two sidewalls of the first groove 200 respectively. In addition, the second elastic arm 2012 protrudes towards the first sliding block 242. Moreover, the second elastic arm 2012 can surround the second gap 102 with the first groove 200.

[0132] For example, the first fixed frame 222 and the second elastic arm 2012 connected as an integral structure can be formed by an injection molding process.

[0133] In addition, the second elastic arm 2012 can abut against the first sliding block 242. In this case, as shown in FIG. 23, during the sliding of the first swing arm 221 relative to the first fixed frame 222 along the first direction X, since the second elastic arm 2012 protrudes towards the first sliding block 242 and abuts against the first sliding block 242, the component force of the pushing force applied by the first swing arm 221 to the first sliding block 242 will squeeze the second elastic arm 2012. Moreover, the second elastic arm 2012 surrounds the second gap 102 with the first groove 200, and the second gap 102 can provide a space for the elastic deformation of the second elastic arm 2012, so that the second elastic arm 2012 can be elastically deformed to generate the above-mentioned reaction force F3, thereby reducing the probability of impact.

[0134] On this basis, as shown in FIG. 24, in the case where the sidewall of the first installation slot 2221 is provided with a first sliding slot 2220 extending along the second direction Y, the second gap 102 can be in communication with the first sliding slot 2220. In this way, part of the first sliding slot 2220 can also serve as a space for the elastic deformation of the second elastic arm 2012, so that the second elastic arm 2012 is more likely to be elastically deformed after being pressed.

[0135] The above is an example of the case where the second gap 102 in FIG. 24 is in communication with the first sliding slot 2220. In some other embodiments of the present application, in order to simplify the manufacturing process, the second gap 102 can not be in communication with the first sliding slot 2220.

[0136] In addition, the rotating shaft mechanism can further include a second block-shaped abutting portion 62 as shown in FIG. 24. The second block-shaped abutting portion 62 is arranged on the surface of the second elastic arm 2012 for abutting against the first slider 242 (as shown in FIG. 23). In this way, the second block-shaped abutting portion 62 can protrude from the surface of the second elastic arm 2012 for abutting against the first slider 242, so that the first slider 242 can indirectly abut against the second elastic arm 2012 through the second block-shaped abutting portion 62. Similarly, compared with the area of the surface of the second elastic arm 2012 for directly abutting against the first slider 242, the area of the second block-shaped abutting portion 62 for directly contacting the first slider 242 is smaller, thereby facilitating the reduction of the control accuracy of the flatness of the surface of the second block-shaped abutting portion 62 for abutting against the first slider 242 during mass production.

[0137] Alternatively, in some other embodiments of the present application, the first elastic abutting portion for achieving the elastic abutment between the first slider 242 in the first damping member 24 and the sidewall of the first mounting groove 2221 formed on the first fixed frame 222 can further include an elastic buffer 2013 as shown in FIG. 25. As shown in FIG. 26, a second groove 202 is formed on the sidewall of the first slider 242. The elastic buffer 2013 can be embedded in the second groove 202, and the elastic buffer 2013 can be connected with the first slider 242.

[0138] For example, the first slider 242 and the elastic buffer 2013 connected as an integral structure can be formed by an insert molding process. The material of the elastic buffer 2013 can include a soft glue material, such as silicone or thermoplastic urethane (TPU). The elastic buffer 2013 is more likely to elastically deform relative to the first slider 242.

[0139] Based on this, the elastic buffer 2013 in FIG. 26 can be exposed in part, so that the elastic buffer 2013 can abut against the sidewall of the first mounting groove 2221 in FIG. 25. Similarly, in this case, as shown in FIG. 25, during the sliding of the first swing arm 221 relative to the first fixed frame 222 along the first direction X, because the elastic buffer 2013 abuts against the sidewall of the first mounting groove 2221, the component of the pushing force applied by the first swing arm 221 to the first slider 242 will press the elastic buffer 2013, so that the elastic buffer 2013 can elastically deform, thereby generating the above-mentioned reaction force F3, and achieving the reduction of the probability of impact.

[0140] On this basis, as shown in FIG. 26, the first sliding block 242 is further provided with a first connecting hole 301 penetrating the first sliding block 242, the first connecting hole 301 can be in communication with the second groove 202, and a part of the elastic buffer 2013 is embedded in the first connecting hole 301. In this way, the part of the elastic buffer 2013 embedded in the second groove 202 and the part embedded in the first connecting hole 301 can be connected with the first sliding block 242, so as to increase the connection area between the elastic buffer 2013 and the first sliding block 242 and improve the reliability of the connection between the elastic buffer 2013 and the first sliding block 242.

[0141] In addition, as shown in FIG. 26, in the case where the rotating shaft mechanism further includes the first guide part 51 shown in FIG. 20, the first guide part 51 can be provided with a second connecting hole 302 penetrating the first guide part 51, the second connecting hole 302 can be in communication with the second groove 202. On this basis, a part of the elastic buffer 2013 is embedded in the second connecting hole 302. Similarly, the part of the elastic buffer 2013 embedded in the second groove 202 and the part embedded in the second connecting hole 302 can be connected with the first sliding block 242, so as to improve the reliability of the connection between the elastic buffer 2013 and the first sliding block 242.

[0142] On this basis, the rotating shaft mechanism 20 can further include the first block-shaped abutting part 61 shown in FIG. 21, the first block-shaped abutting part 61 is arranged on the side wall of the first mounting groove 2221, and the first block-shaped abutting part 61 can be in direct contact with the elastic buffer 2013. The technical effects of the first block-shaped abutting part 61 are as described above, and will not be described here again.

[0143] The above is an example taking the rotating shaft mechanism with one first elastic abutting part (including any one of the first elastic arm 2011 shown in FIG. 20, the second elastic arm 2012 shown in FIG. 24, or the elastic buffer 2013 shown in FIG. 25) as an example. In other embodiments of the present application, the one first elastic abutting part can include the first elastic arm 2011 and the second elastic arm 2012. Alternatively, the one first elastic abutting part can include the second elastic arm 2012 and the elastic buffer 2013. The technical effects of the first elastic abutting part are as described above, and will not be described here again.

[0144] Alternatively, in other embodiments of the present application, as shown in FIG. 27, the rotating shaft mechanism 20 can include two first elastic abutting parts, which are a first inner elastic abutting part 201a and a first outer elastic abutting part 201b. Based on this, the first inner elastic abutting part 201a is located on the side of the first sliding block 242 facing the main shaft (i.e., the position of the shaft center O1-O2), and the first outer elastic abutting part 201b is located on the side of the first sliding block 242 away from the main shaft (i.e., the position of the shaft center O1-O2).

[0145] In this case, as shown in FIG. 27, the sliding direction of the first slider 242, i.e. the second direction Y, can be elastically abutted by the sidewalls of the first mounting slot 2221. Therefore, during the sliding of the first swing arm 221 along the first direction X relative to the first fixed frame 222, the first slider 242 can be elastically abutted by the sidewalls of the first mounting slot 2221 due to the elastic deformation of the first inner elastic abutment 201a and the first outer elastic abutment 201b, so as to reduce the swing of the first slider 242 and the collision and abnormal sound caused thereby.

[0146] In this case, as shown in FIG. 27, the sliding direction of the first slider 242, i.e. the second direction Y, can be elastically abutted by the sidewalls of the first mounting slot 2221. Therefore, during the sliding of the first swing arm 221 along the first direction X relative to the first fixed frame 222, the first slider 242 can be elastically abutted by the sidewalls of the first mounting slot 2221 due to the elastic deformation of the first inner elastic abutment 201a and the first outer elastic abutment 201b, so as to reduce the swing of the first slider 242 and the collision and abnormal sound caused thereby.

[0147] The above is an example of the elastic abutment between the first damping member 24 and the first fixed frame 222. Similarly, as shown in FIG. 28, the second damping member 25 and the second fixed frame 232 can be elastically abutted in the same way. For example, the second fixed frame 232 can be provided with a second mounting slot 2321. The first damping member 24 can be arranged in the second mounting slot 2321. The second damping member 25 can include a second slider 252 and at least one second spring 251. The second slider 252 can be slidably connected to the sidewalls of the second mounting slot 2321 along the second direction Y. The arrangement of the second slider 252 and the second spring 251 is the same as described above, and will not be described here.

[0148] On this basis, in order to elastically abut the second damping member 25 and the second fixed frame 232, as shown in FIG. 28, the shaft mechanism 20 can further include a second elastic abutment 203. The second elastic abutment 203 can be located between the second slider 252 and the sidewalls of the second mounting slot 2321, and the second slider 252 can be abutted to the sidewalls of the second mounting slot 2321 through the second elastic abutment 203.

[0149] Similarly, FIG. 28 is an example of the second elastic abutment 203 using the elastic buffer 2013 shown in FIG. 26. In other embodiments of the present application, the second elastic abutment 203 can be the first elastic arm 2011 shown in FIG. 20 or the second elastic arm 2012 shown in FIG. 24. The arrangement of the second elastic abutment 203 and the technical effects are the same as those of the first elastic abutment 201, and will not be described here.

[0150] The above description is provided as an enabling teaching of the application and is not intended to limit its scope in any way. Any modification of the application in keeping with the scope and spirit of the application as defined by the following claims is intended to be covered thereby.

Claims

1. A swivel mechanism (20), characterized in that It comprises: a main shaft (21); a first swing arm (221) rotatably connected with the main shaft (21); a first fixed frame (222); the first swing arm (221) is slidably connected with the first fixed frame (222) along a first direction; the first direction is perpendicular to the extension direction of the main shaft (21); a second swing arm (231) located on both sides of the main shaft (21) with the first swing arm (221) respectively; the second swing arm (231) is rotatably connected with the main shaft (21); a second fixed frame (232); located on both sides of the main shaft (21) with the first fixed frame (222) respectively; the second swing arm (231) is slidably connected with the second fixed frame (232) along the first direction; a first damping member (24) arranged on the first fixed frame (222); the first damping member (24) is slidably connected with the first fixed frame (222) along a second direction; the first damping member (24) is in abutment with the first swing arm (221), at the abutment position of the first swing arm (221) and the first damping member (24), the extension direction of the abutment surface of the first swing arm (221) intersects with the first direction; the first damping member (24) is in elastic abutment with the first fixed frame (222) along the first direction; the second direction is parallel to the extension direction of the main shaft (21); a second damping member (25) arranged on the second fixed frame (232); the second damping member (25) is slidably connected with the second fixed frame (232) along the second direction; the second damping member (25) is in abutment with the second swing arm (231), at the abutment position of the second swing arm (231) and the second damping member (25), the extension direction of the abutment surface of the second swing arm (231) intersects with the first direction; the second damping member (25) is in elastic abutment with the second fixed frame (232) along the first direction.

2. The rotation shaft mechanism (20) according to claim 1, wherein a first mounting groove (2221) is formed in the first fixed frame (222), and the first damping member (24) is arranged in the first mounting groove (2221); the first damping member (24) comprises: a first spring (241) arranged along the second direction; a fixed end of the first spring (241) away from the first swing arm (221) is connected with the first fixed frame (222); a first sliding block (242) slidably connected with the side wall of the first mounting groove (2221) along the second direction; a free end of the first spring (241) towards the first swing arm (221) is arranged in the first sliding block (242); the first sliding block (242) is in abutment with the first swing arm (221). The rotating shaft mechanism (20) further comprises a first elastic abutting part (201), which is located between the first sliding block (242) and the side wall of the first mounting groove (2221) in the first direction, and abuts against the side wall of the first mounting groove (2221) through the first elastic abutting part (201).

3. The rotating shaft mechanism (20) according to claim 2, characterized in that, The first elastic abutting part (201) comprises a first elastic arm (2011), which has oppositely arranged first and second ends, the first end of the first elastic arm (2011) is connected with the side surface of the first sliding block (242) and faces away from the first swing arm (221), and the second end of the first elastic arm (2011) faces the first swing arm (221); the first elastic arm (2011) abuts against the side wall of the first mounting groove (2221); and the first elastic arm (2011) and the first sliding block (242) have a first gap (101) therebetween.

4. The rotation axis mechanism (20) according to claim 3, characterized in that The rotating shaft mechanism (20) further comprises: A first block-shaped abutting part (61) is arranged on the side wall of the first mounting groove (2221), and the first block-shaped abutting part (61) directly contacts the first elastic arm (2011); the side wall of the first mounting groove (2221) provided with the first block-shaped abutting part (61) and the first sliding block (242) have a fourth gap therebetween.

5. The rotating shaft mechanism (20) according to claim 2 or 3, characterized in that, A first groove (200) is formed in the side wall of the first mounting groove (2221); The first elastic abutting part (201) comprises a second elastic arm (2012), both ends of the second elastic arm (2012) are connected with the two side walls of the first groove (200) opposite to each other; the second elastic arm (2012) protrudes towards the first sliding block (242) and surrounds the second gap (102) with the first groove (200); and the second elastic arm (2012) abuts against the first sliding block (242).

6. The rotating shaft mechanism (20) according to any one of claims 2-5, characterized in that, A second groove (202) is formed in the side wall of the first sliding block (242); The first elastic abutting part (201) comprises an elastic buffer (2013), which is embedded in the second groove (202) and connected with the first sliding block (242); and a part of the elastic buffer (2013) exposed from the second groove (202) abuts against the side wall of the first mounting groove (2221).

7. The rotating shaft mechanism (20) according to claim 6, characterized in that, The first sliding block (242) is further provided with a first connecting hole (301) penetrating through the first sliding block (242), the first connecting hole (301) is communicated with the second groove (202), and a part of the elastic buffer (2013) is embedded in the first connecting hole (301).

8. The pivot mechanism (20) according to any one of claims 2-7, characterized in that, The first swing arm (221) has a first cam surface (401), and the first sliding block (242) has a second cam surface (402); the first cam surface (401) comprises a first surface (S1) and a second surface (S2) which are away from the main shaft (21) in sequence; when the first fixed frame (222) is in the folded state, the second cam surface (402) abuts against the first surface (S1); when the first fixed frame (222) is in the flattened state, the second cam surface (402) abuts against the second surface (S2); the extension directions of the first surface (S1) and the second surface (S2) are respectively intersected with the first direction.

9. The pivot mechanism (20) according to claim 8, characterized in that, The first surface (S1) and the extension direction of the main shaft (21) have a first included angle a1, and the second surface (S2) and the extension direction of the main shaft (21) have a second included angle a2; wherein a1>a2; The first elastic abutting portion (201) is located on one side of the first sliding block (242) facing the main shaft (21).

10. The revolute mechanism (20) according to any one of claims 2-9, characterized in that The pivot mechanism (20) comprises two first elastic abutting portions (201), which are a first inner elastic abutting portion (201a) and a first outer elastic abutting portion (201b) respectively; The first inner elastic abutting portion (201a) is located on one side of the first sliding block (242) facing the main shaft (21); The first outer elastic abutting portion (201b) is located on one side of the first sliding block (242) away from the main shaft (21).

11. The pivot mechanism (20) according to any one of claims 2-10, characterized in that, With respect to one end of the first sliding block (242) close to the fixed end of the first spring (241), the first elastic abutting portion (201) is arranged at one end of the first sliding block (242) close to the first swing arm (221).

12. The pivot mechanism (20) according to any one of claims 2-11, characterized in that, A first sliding groove (2220) extending along the second direction is formed on the side wall of the first mounting groove (2221); The pivot mechanism (20) further comprises a first guide portion (51), the first guide portion (51) is arranged on the side surface of the first sliding block (242), a part of the first guide portion (51) extends into the first sliding groove (2220) and is in sliding cooperation with the first sliding groove (2220).

13. The pivot mechanism (20) according to claim 12, characterized in that, The first elastic abutting part (201) comprises a first elastic arm (2011), and a first gap (101) is formed between the first elastic arm (2011) and the first slider (242); A second end of the first elastic arm (2011) is connected with the first guide part (51), and a third gap (103) is formed between the first elastic arm (2011) and the first guide part (51), and the third gap (103) is communicated with the first gap (101).

14. The rotation shaft mechanism (20) according to claim 12, characterized in that, A first groove (200) is formed in a side wall of the first mounting groove (2221); the first elastic abutting part (201) comprises a second elastic arm (2012); two ends of the second elastic arm (2012) are connected with two side walls opposite to each other of the first groove (200); the second elastic arm (2012) protrudes towards the first slider (242) and surrounds the second gap (102) with the first groove (200); The second gap (102) is communicated with the first sliding groove (2220).

15. The rotation shaft mechanism (20) according to claim 12, characterized in that, A second groove (202) is formed in a side wall of the first slider (242); the first elastic abutting part (201) comprises an elastic buffer (2013); the elastic buffer (2013) is embedded in the second groove (202) and connected with the first slider (242); A second connecting hole (302) is formed in the first guide part (51) and penetrates the first guide part (51); the second connecting hole (302) is communicated with the second groove (202), and a part of the elastic buffer (2013) is embedded in the second connecting hole (302).

16. A display terminal (01), characterized by Comprise: a display screen (10); a first shell (11); a second shell (12); the rotation shaft mechanism (20) according to any one of claims 1-15; the rotation shaft mechanism (20) is located between the first shell (11) and the second shell (12); the display screen (10) is connected with the first shell (11) and the second shell (12); and the display screen (10) covers the rotation shaft mechanism (20).

Images