Rotating shaft mechanism and display terminal

Abstract

The embodiment of the invention provides a rotating shaft mechanism and a display terminal, relates to the technical field of folding display, and is used for relieving the problem that abnormal sound is generated in the folding display terminal in the bending process. In the rotating shaft mechanism, a first swing arm and a second swing arm are rotationally connected with a main shaft, the first swing arm is in sliding connection with a first fixing frame in the first direction, and the second swing arm is in sliding connection with a second fixing frame in the first direction. The extending direction of the first swing arm abutting face intersects with the first direction. In the first direction, the first damping piece elastically abuts against the first fixing frame. In the acting force applied by the first damping piece to the first swing arm, the component force in the first direction can enable the abutting position of the first damping piece and the first fixing frame to generate elastic deformation, so that a gap at the opposite side of the elastic abutting position of the first damping piece and the first fixing frame is reduced or eliminated. Similarly, the extending direction of the abutting face of the second swing arm intersects with the first direction, and the second damping piece elastically abuts against the second fixing frame in the first direction.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of folding display, in particular to a rotating shaft mechanism and a display terminal. BACKGROUND

[0002] With the continuous development of display technology, folding display terminals 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 will generate abnormal sound inside, thereby reducing the user experience. SUMMARY

[0003] The present application provides a rotating shaft mechanism and a display terminal, which are used to alleviate the problem that the folding display terminal generates abnormal sound inside in the folding process.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme:

[0005] In one aspect of the present application, a rotating shaft mechanism is provided, which comprises 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 rotatably connected with the main shaft, and the first swing arm is slidably connected with the first fixed frame along a first direction which is perpendicular to the axis. The second swing arm is located on both sides of the main shaft respectively, and the first fixed frame and the second fixed frame are located on both sides of the main shaft respectively. The second swing arm is rotatably connected with the main shaft, and the second swing arm is slidably connected with the second fixed frame along the first direction. The first damping member is arranged on the first fixed frame and is slidably 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 with 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 is slidably 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 with the first direction. The second damping member elastically abuts against the second fixed frame along the first direction.

[0006] In summary, since the first swing arm can be rotatably connected with the main shaft and slidably 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, through the first damping member abutting against the first swing arm, a damping force along 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.

[0007] On this basis, when the first swing arm slides relative to the first fixed frame along the first direction, 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, which is opposite to the pushing force. Since 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 with the first direction, the component of the reaction force applied by the first damping member to the first swing arm along the first direction can act as a damping force. In addition, since the first damping member elastically abuts against the first fixed frame along the first direction, the damping force can cause the first damping member to elastically deform at the abutting position with the first fixed frame. The elastic deformation can generate a reaction force, which can reduce or eliminate the gap between the first damping member and the first fixed frame at the opposite side of the elastically abutting position, so as to reduce the probability that the first swing arm swings and hits the first fixed frame to generate 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 elastically abutting position, so as to achieve the purpose of relieving abnormal sound.

[0008] 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 includes a first spring and a first sliding block. The first spring is arranged along the second direction, and the fixed end of the first spring away from the first swing arm is connected to the first fixed frame. In addition, the first sliding block is slidingly connected to the side wall of the first mounting slot along the second direction. The free end of the first spring towards the first swing arm is arranged in the first sliding block. The first sliding block abuts against the first swing arm. On this basis, the pivot mechanism further includes a first elastic abutting portion, which is located between the first sliding block and the side wall of the first mounting slot along the first direction, and the first sliding block abuts against the side wall 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 of the pushing force applied by the first swing arm to the first sliding block will cause the first sliding block to move towards the side wall of the first mounting slot. Since the first elastic abutting portion is located between the first sliding block and the side wall of the first mounting slot, and the first sliding block abuts against the side wall of the first mounting slot through the first elastic abutting portion, the first sliding block will press the first elastic abutting portion during the movement towards the side wall of the first mounting slot, so that the first elastic abutting portion elastically deforms. In this way, the reaction force generated by the elastic deformation can cause the opposite side of the elastically abutting position of the first damping member and the first fixed frame to also be in an abutting state, so as to reduce the probability that the first damping member hits the first fixed frame.

[0009] In an alternative embodiment, the first elastic abutting part comprises a first elastic arm having a first end and a second end arranged oppositely. 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 side wall of the first mounting slot, and the first elastic arm has a first gap with 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, due to the abutment of the first elastic arm against the side wall of the first mounting slot, the component of the pushing force applied by the first swing arm to the first sliding block will cause the side wall of the first mounting slot to press the first elastic arm reversely. Moreover, the first elastic arm has a first gap with the first sliding block, 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 above-mentioned reaction force for reducing the occurrence of the impact phenomenon.

[0010] In an alternative embodiment, the rotating shaft mechanism further comprises a first block-shaped abutting part arranged on the side wall of the first mounting slot, and the first block-shaped abutting part directly contacts the first elastic arm. In this way, the first block-shaped abutting part can protrude from the side wall of the first mounting slot, so that the first elastic arm can indirectly abut against the side wall of the first mounting slot through the first block-shaped abutting part. In this case, the area of the first block-shaped abutting part for directly contacting the first elastic arm is smaller than the area of the side wall of the first mounting slot for directly contacting the first elastic arm, so that the control precision of the flatness of the surface of the first block-shaped abutting part for abutting against the first elastic arm can be reduced during mass production. In addition, the fourth gap is arranged between the side wall of the first mounting slot provided with the first block-shaped abutting part and the first sliding block. In this way, when the first elastic arm directly abuts against the first block-shaped abutting part arranged on the side wall of the first mounting slot, the fourth gap arranged between the side wall of the first mounting slot and the first sliding block can avoid the direct contact between the side wall of the first mounting slot and the first sliding block, and can reduce the friction force during the sliding of the first sliding block in the second direction.

[0011] In an alternative embodiment, a first recess is formed in the side wall of the first mounting groove. The first elastic abutting portion comprises a second elastic arm. The two ends of the second elastic arm are connected to the two side walls of the first recess, respectively. The second elastic arm protrudes towards the first slider and is surrounded by the first recess to form a second gap. The second elastic arm abuts against the first slider. 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 slider will squeeze the second elastic arm, because the second elastic arm protrudes towards the first slider and abuts against the first slider. Moreover, the second elastic arm is surrounded by the first recess to form a second gap, which can provide a space for the elastic deformation of the second elastic arm, so that the second elastic arm can be elastically deformed to generate the above-mentioned reaction force, thereby reducing the probability of impact.

[0012] In an alternative embodiment, the above-mentioned rotating shaft mechanism can further comprise a second block-shaped abutting portion. The second block-shaped abutting portion is arranged on the surface of the second elastic arm for abutting against the first slider. In this way, the second block-shaped abutting portion can protrude from the surface of the second elastic arm for abutting against the first slider, so that the first slider can indirectly abut against the second elastic arm through the second block-shaped abutting portion. Similarly, compared with the area of the surface of the second elastic arm for directly abutting against the first slider, the area of the surface of the second block-shaped abutting portion for directly contacting the first slider is smaller, thereby facilitating the reduction of the control precision of the flatness of the surface of the second block-shaped abutting portion for abutting against the first slider during mass production.

[0013] In an alternative embodiment, a second recess is formed in the side wall of the first slider. The first elastic abutting portion comprises an elastic buffer, which is embedded in the second recess and connected to the first slider. The part of the elastic buffer exposed from the second recess abuts against the side wall of the first mounting groove. Similarly, 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 slider will squeeze the elastic buffer, so that the elastic buffer can be elastically deformed to generate the above-mentioned reaction force, thereby reducing the probability of impact.

[0014] In an alternative embodiment, a first connecting hole is formed in the first slider and penetrates the first slider. The first connecting hole is in communication with the second recess, 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 recess and the first connecting hole can be connected to the first slider, thereby increasing the connection area between the elastic buffer and the first slider and improving the reliability of the connection between the elastic buffer and the first slider.

[0015] In an alternative embodiment, the first swing arm has a first cam surface, and the first slider has a second cam surface. The first cam surface comprises a first surface and a second surface which are sequentially away from the main shaft. When the first fixed frame is in the folded state, the second cam surface abuts against the first surface. When the first fixed frame is in the unfolded state, the second cam surface abuts against the second surface. The extending directions of the first surface and the second surface are respectively intersected with 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 slider to the first swing arm can be perpendicular to the first surface or the second surface, so that the component of the force along the first direction can be used as the damping force of the first damping member applied to the first swing arm.

[0016] In an alternative embodiment, the first surface and the main shaft have a first included angle a1, and the second surface and the main shaft have a second included angle a2. The first included angle a1 is greater than the second included angle a2. Therefore, 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 slider is switched from the first surface in the first cam surface to the second surface, because the inclination directions of the first surface and the second surface are different, and the second surface is more inclined, in the case that there is a gap between the first slider and the side wall of the first mounting groove, the first slider will quickly approach the side wall of the first mounting groove at the position of the gap, and then cause a greater impact on the side wall of the first mounting groove, 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 slider 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 slider can be 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 slider 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 slider is switched from the first surface to the second surface, it is difficult to cause the first slider to quickly approach the side wall of the first mounting groove at the opposite side, so as to reduce the probability of the impact and improve the reliability of the product.

[0017] In an alternative embodiment, the rotating shaft mechanism comprises two first elastic abutting portions, i.e., 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 facing away from the main shaft. In this way, the sliding direction of the first sliding block, i.e., the second direction, can be in elastic abutment 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, the first inner elastic abutting portion and the first outer elastic abutting portion can both elastically deform, so that the first sliding block can be kept in abutment with the side wall of the first mounting groove on both sides, thereby reducing the phenomenon of collision and abnormal sound caused by the swing of the first sliding block.

[0018] In an alternative embodiment, the first elastic abutting portion is arranged on the side 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, when the first elastic abutting portion elastically deforms to generate the reaction force during the sliding of the first swing arm relative to the first fixed frame in the first direction, the first elastic abutting portion is arranged on the side of the first sliding block close to the first swing arm, so that the gap between the first sliding block on the side opposite to the first elastic abutting portion and the side wall of the first mounting groove can be reduced, and the probability of the swing of the first sliding block in the first direction towards the end of the first swing arm can be reduced.

[0019] In an alternative embodiment, a first sliding groove extending in the second direction is formed on the side wall 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 part 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.

[0020] In an alternative embodiment, the first elastic abutting portion comprises a first elastic arm, and the first elastic arm has a first gap with the first sliding block. The second end of the first elastic arm is connected with the first guide portion, and the first elastic arm has a third gap with 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 with the first guide portion, the rigidity of the first elastic arm can be improved, so that when the first elastic arm elastically deforms, a sufficient reaction force can be generated to reduce or even eliminate the gap between the first sliding block on the side opposite to the first elastic abutting portion and the side wall of the first mounting groove. In addition, by connecting the third gap with the first gap, the phenomenon that the first elastic arm is difficult or unable to elastically deform due to the connection of the first elastic arm with the first guide portion everywhere can be avoided.

[0021] In an optional embodiment, a first groove is defined in the sidewall of the first mounting slot, and the first elastic abutment portion includes a second elastic arm. The second elastic arm's ends are connected to the two opposing sidewalls of the first groove, respectively. The second elastic arm protrudes toward the first slider and forms a second gap with the first groove. The second gap communicates with the first sliding slot. In this manner, a portion of the first sliding slot also serves as a space for the second elastic arm to elastically deform, thereby making it easier for the second elastic arm to elastically deform when under pressure.

[0022] In one optional embodiment, a second groove is defined on the side wall of the first slider. The first elastic abutment portion includes an elastic buffer member, which is embedded in the second groove and connected to the first slider. The first guide portion includes a second connecting hole extending through the first guide portion, the second connecting hole communicating with the second groove, and a portion of the elastic buffer member is embedded in the second connecting hole. In this manner, the portion of the elastic buffer member embedded in the second groove and the portion embedded in the second connecting hole can both be connected to the first slider, thereby improving the reliability of the connection between the elastic buffer member and the first slider.

[0023] Another aspect of the present application provides a display terminal comprising a display screen, a first housing, a second housing, and any one of the aforementioned hinge mechanisms. The hinge mechanism is positioned between the first and second housings, and the display screen is connected to the first and second housings, with the display screen covering the hinge mechanism. This display terminal has the same technical effects as the hinge mechanism provided in the aforementioned embodiments and will not be further described here. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of the structure of a display terminal provided in an embodiment of the present application;

[0025] Figure 2 for Figure 1 An exploded view of the terminal is shown in the figure;

[0026] Figure 3 for Figure 1 A schematic diagram of a folded state of the terminal is shown in FIG.

[0027] Figure 4 for Figure 1 A schematic diagram of another folded state of the display terminal;

[0028] Figure 5A for Figure 1 An exploded view of the terminal is shown in the figure;

[0029] Figure 5B A schematic diagram of a rotating shaft mechanism provided in an embodiment of the present application;

[0030] Figure 6 for Figure 5AAn exploded view of the transfer shaft mechanism;

[0031] Figure 7A For Figure 5A A structural schematic view of the transfer shaft mechanism;

[0032] Figure 7B For Figure 7A A structural schematic view of the first swing arm;

[0033] Figure 8 For Figure 5A Another structural schematic view of the transfer shaft mechanism;

[0034] Figure 9 A schematic view of part of the transfer shaft mechanism provided by the embodiments of the present application;

[0035] Figure 10 For Figure 5A Still another structural schematic view of the transfer shaft mechanism;

[0036] Figure 11 For Figure 7A A top view obtained along the direction A in FIG. 4;

[0037] Figure 12 A top view obtained along the direction B in FIG. 4; Figure 8

[0038] Another schematic view of part of the transfer shaft mechanism provided by the embodiments of the present application; Figure 13

[0039] Still another schematic view of part of the transfer shaft mechanism provided by the embodiments of the present application; Figure 14

[0040] Another structural schematic view of the transfer shaft mechanism; Figure 15 Figure 5A Still another structural schematic view of the transfer shaft mechanism;

[0041] Figure 16 Another structural schematic view of the transfer shaft mechanism; Figure 5A

[0042] Still another schematic view of part of the transfer shaft mechanism provided by the embodiments of the present application; Figure 17

[0043] A partial enlarged view of FIG. 5; Figure 18 Figure 17 Still another schematic view of part of the transfer shaft mechanism provided by the embodiments of the present application;

[0044] Figure 19 Another structural schematic view of the transfer shaft mechanism;

[0045] Figure 20 Figure 19 ​​​A structural schematic view of the first sliding block and the first elastic arm in the first embodiment of the present application;

[0046] Figure 21 Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application;

[0047] Figure 22 A plan view obtained along the E direction in the first embodiment of the present application; Figure 21

[0048] Figure 23 Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application;

[0049] Figure 24 Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application; Figure 23 A structural schematic view of the first sliding block and the second elastic arm in the first embodiment of the present application;

[0050] Figure 25 Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application;

[0051] Figure 26 Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application; Figure 25

[0052] Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application; Figure 27

[0053] Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application; Figure 28 Figure 5A Another structural schematic view of the partial components of the rotating shaft mechanism provided in the first embodiment of the present application;

[0054] Reference signs:

[0055] ​​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 groove; 62 - second block-shaped abutting part; 2013 - elastic buffer member; 301 - first connecting hole; 302 - second connecting hole; 202 - second groove; 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 of the present application.

[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 in a broad sense, 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 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 tablet computer, 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 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 of description, and is exemplarily illustrated by taking the display terminal 01 as a folding mobile phone. In this case, the display terminal 01 can include a display screen 10 as shown in Figure 1 For example, 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 needs a backlight source.

[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, the first housing 11 and the second housing 12, and a hinge mechanism 20 disposed on the back of the display screen 10 (a surface opposite to the display surface of the display screen 10), as shown in Figure 2 The hinge 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 hinge mechanism 20, so that the first housing 11 and the second housing 12 can rotate around the axis O1-O2 of the hinge 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 hinge 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 located 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 hinge mechanism 20, the first housing 11 and the second housing 12. When the display terminal 01 is in an unfolded state as shown in Figure 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, 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 can be approximately in the same plane.

[0069] Alternatively, when the initial state of the display terminal 01 is an unfolded state as shown in Figure 1 A 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 hinge mechanism 20, thereby causing the display screen 10 to deform as shown in Figure 3 and further causing the display terminal 01 to be in a folded state as shown in Figure 3 or Figure 4 .

[0070] For example, in some embodiments of the present application, the folded 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 Figure 3 The included angle β between the first housing 11 and the second housing 12 can be 0°<β<180°. Alternatively, as shown in Figure 4 As shown, the angle β between the first housing 11 and the second housing 12 can be 0°. In this case, the folded state of the display terminal 01 can also be called the closed state. Alternatively, if a certain angle tolerance is allowed, the closed state can also be such that the angle β between the first housing 11 and the second housing 12 is 2° or 5°.

[0071] In order to illustrate the positional relationship of various components in the display terminal 01, an XYZ coordinate system is established in the accompanying drawings. For example, the XY plane can be located at the position of the display terminal 01 as follows: Figure 1 In the flattened state shown, the display surface (the surface for displaying images) of the display screen 10 is parallel. The X direction can be perpendicular to the thickness of the display terminal 01 or the thickness of the aforementioned housing, and perpendicular to the axis O1-O2 of the hinge 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 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 aforementioned housing. For convenience of explanation, 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] The above is based on the folded state of the display terminal 01. Figure 4 As shown, the display screen 10 is wrapped between the first shell 11 and the second shell 12. In this case, the display terminal 01 can be called an inner folding display terminal. Alternatively, in other embodiments of the present application, when the display terminal is in a folded state, the first shell 11 and the second shell 12 are wrapped by the display screen 10, 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 called an outer folding display terminal. The present application does not limit the folding method of the display terminal 01. For the convenience of explanation, the following examples are all taken as an example of the display terminal 01 being the above-mentioned inner folding display terminal.

[0073] In addition, the following Figure 2 The structure of the rotating shaft mechanism 20 shown in FIG. Figure 5AAs shown, the rotating shaft mechanism 20 may include a main shaft 21, a first swing arm 221, a first fixing bracket 222, a second swing arm 231, a second fixing bracket 232, a first damping member 24, and a second damping member 25. The first swing arm 221 and the second swing arm 231 may be located on either side of the main shaft 21, respectively. The first fixing bracket 222 and the second fixing bracket 232 may be located on either side of the main shaft 21, respectively. The first damping member 24 and the second damping member 25 may be located on either side of the main shaft 21, respectively. The main shaft 21 extends in 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, continue Figure 5A As shown, the first swing arm 221 is disposed proximate to the main shaft 21 relative to the first fixing bracket 222. The first fixing bracket 222 can be connected to the first housing 11. For example, the first fixing bracket 222 and the first housing 11 can be detachably connected by a threaded connection or other means. Alternatively, for another example, the first fixing bracket 222 and the first housing 11 can be connected by an adhesive layer or other adhesive means. Alternatively, the first fixing bracket 222 and the first housing 11 can be connected to form an integral structural member through an injection molding process, which is not limited in this application.

[0075] In addition, the first swing arm 221 can be rotatably connected to the main shaft 21. In addition, the first swing arm 221 is also connected to the first fixing frame 222 along the first direction X ( Figure 5A As indicated by a solid arrow in the figure, the first direction X is perpendicular to the axis O1-O2. In this case, while the first swing arm 221 rotates relative to the main shaft 21, it can also slide relative to the first fixing frame 222 along the first direction X, allowing the first swing arm 221 to move closer to or further away from the main shaft 21. In this way, the first swing arm 221 can drive the first fixing frame 222 to rotate about the main shaft 21.

[0076] In some embodiments of the present application, Figure 5A As shown, the main shaft 21 may include a base 211 and a shaft cover 212, and the shaft cover 212 is buckled on the base 211 so that the shaft cover 212 and the base 211 enclose a receiving cavity ( Figure 5A A portion of the first swing arm 221 may be disposed in the accommodating cavity to be rotatably connected to the main shaft 21.

[0077] For example, Figure 5B As shown, the first swing arm 221 and the main shaft 21 (as shown Figure 5AThe rotational connection shown in the figure can be understood as follows: the position where the first swing arm 221 is rotationally connected to the base 211 in the main shaft 21 has a rotation axis Q1-Q2. The rotation axis Q1-Q2 can be located on the side of the main shaft axis O1-O2 facing the first swing arm 221, and the rotation axis Q1-Q2 is parallel to the main shaft axis O1-O2. In this case, the first swing arm 221 can rotate relative to the main shaft 21 around the rotation axis Q1-Q2. Similarly, the position where the second swing arm 231 is rotationally connected to the base 211 has a rotation axis Q3-Q4. The rotation axis Q3-Q4 can be located on the side of the main shaft axis O1-O2 facing the second swing arm 231, and the rotation axis Q3-Q4 is parallel to the main shaft axis O1-O2. In this case, the second swing arm 231 can rotate relative to the main shaft 21 around the rotation axis Q3-Q4.

[0078] in, Figure 5A This description uses the example of a display terminal 01 having one hinge mechanism 20. In other embodiments of the present application, the display terminal 01 may have at least two hinge mechanisms 20. These at least two hinge mechanisms 20 may be arranged along axis O1-O2. Furthermore, the main axis 21 of the multiple hinge mechanisms 20 may be shared. Alternatively, the main axis 21 of the multiple hinge mechanisms 20 may be independently provided, which is not a limitation of the present application.

[0079] In addition, in order to enable the first swing arm 221 to rotate relative to the main shaft 21, for example, Figure 6 As shown, the first swing arm 221 may include a swing arm body 2211 and a circular arc portion 2212, which are connected as an integral structure. Furthermore, the pivot mechanism 20 may further include a first rotating connector 31, which may be disposed within a housing 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 may be located within the housing cavity and rotatably connected to the first rotating connector 31.

[0080] For example, continue as Figure 6 As shown, the first rotating connection member 31 may include at least one first rotating shaft 310. The arc portion 2212 of the first swing arm 221 may be rotatably connected to the first rotating shaft 310, so that the entire first swing arm 221 may be rotatably connected to the main shaft 21 through the first rotating connection member 31.

[0081] Alternatively, for another example, the first swing arm 221 can be rotationally connected to the main shaft 21 using a virtual axis. The virtual axis can be a component having an arc-shaped structure, with the axis of the arc structure serving as the virtual axis. The two rotationally connected components can rotate relative to the virtual axis. Furthermore, the position of the virtual axis remains unchanged as the two rotationally connected components rotate relative to each other.

[0082] For example, the first swing arm 221 can include the above-mentioned arcuate portion 2212 (as shown in FIG. 22). 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 shaped to match each other, so that the arcuate portion 2212 can slide in the arcuate groove to achieve the rotational connection between the first swing arm 221 and the main shaft 21. Figure 6 On this basis, as shown in FIG. 22, during the rotation of 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 (indicated by solid arrows in FIG. 22). For example, the first fixed frame 222 is provided with at least one second sliding groove 2222 (two second sliding grooves 2222 are taken as an example for illustration). 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.

[0083] Figure 7A In this case, as shown in FIG. 22, 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 gradually turns to the unfolded state, so that the entire display terminal is in the above-mentioned unfolded state. Alternatively, as shown in FIG. 23, 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). 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. Figure 7A Figure 7A Based on this, in order to enable the first fixed frame 222 to maintain the unfolded state as shown in FIG. 22, or maintain the folded state as shown in FIG. 23, as shown in FIG. 22, the shaft mechanism 20 can further include the above-mentioned first damping member 24, which can be arranged 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.

[0084] Figure 7A Figure 8

[0085] Based on this, in order to enable the first fixed frame 222 to maintain the unfolded state as shown in FIG. 22, or maintain the folded state as shown in FIG. 23, as shown in FIG. 22, the shaft mechanism 20 can further include the above-mentioned first damping member 24, which can be arranged 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. Figure 7A Figure 8 Figure 7A

[0086] ​​​​​​​​In addition, continue as Figure 7A As shown, 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 extending direction of the abutting surface of the first swing arm 221 can intersect with 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. Figure 7B As shown, the first cam surface 401 may include a first surface S1 and a second surface S2 connected to each other. Figure 7A As shown, the first surface S1 and the second surface S2 are sequentially arranged away from the main axis 21. The extending directions of the first surface S1 and the second surface S2 may intersect with the first direction X, so that the first surface S1 and the second surface S2 may be inclined relative to the first direction X.

[0087] Continue as Figure 7A As shown, when the first swing arm 221 rotates clockwise and slides relative to the first fixing bracket 222 along the first direction X toward the main shaft 21 (i.e., along the solid hollow arrow), the first fixing bracket 222 can be flattened. 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 a force F2 perpendicular to the second surface S2 to the first swing arm 221. The component of this force F2 along the first direction X can serve as a damping force f2. This damping force f2 can prevent the first swing arm 221 from sliding relative to the first fixing frame 222 along the first direction X away from the main shaft 21, thereby maintaining the relative position of the first swing arm 221 and the first fixing frame 222. This allows the first swing arm 221 to remain flat, and thus the first fixing frame 222 to maintain its current flat state.

[0089] Or, for example, continue as Figure 8 As shown, when the first swing arm 221 rotates counterclockwise and slides relative to the first fixing frame 222 in the first direction X, away from the main shaft 21 (i.e., along the dashed hollow arrow), the first fixing frame 222 is in a folded state. At this time, the second cam surface 402 of the first damping member 24 abuts the first surface S1 of the first cam surface 401 of the first swing arm 221. In this situation, the first damping member 24 can apply a force F2 perpendicular to the first surface S1 to the first swing arm 221. The component of this force F2 along the first direction X acts as a damping force f2. This damping force f2 prevents the first swing arm 221 from sliding relative to the first fixing frame 222 in the first direction X toward the main shaft 21. This allows the first swing arm 221 to remain in the folded state, and consequently, the first fixing frame 222 to maintain its 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, so as to enable the first damping member 24 to apply a damping force along the second direction Y to the first swing arm 221, as shown in Figure 9 As shown, the first fixed frame 222 can be provided with a first mounting slot 2221. Figure 8 The first damping member 24 shown can be arranged in the first mounting slot 2221. Based on this, as shown in Figure 10 The first damping member 24 can include a first sliding block 242 and at least one first spring 241. Wherein, Figure 10 The number of first springs 241 is not limited by the present application, which is exemplified by taking two first springs 241 as an example.

[0091] As shown in Figure 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, as shown in Figure 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, as shown in Figure 10 The pivot 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, Figure 10 Among the two oppositely arranged side walls of the first sliding block 242 extending along the second direction Y, two first guide parts 51 can be arranged on any one 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, as shown in Figure 10As shown, the fixed end a1 of the first spring 241 is connected to the first fixing frame 222, and the free end a2 of the first spring 241 is disposed in the first slider 242. In this case, as shown in FIG. Figure 11 (For along Figure 7A As shown in a top view obtained by A in FIG, the first slider 242 can be connected to the first fixing frame 222 through the first spring 241.

[0094] For example, the first slider 242 has the second cam surface 402. The following describes, by way of example, the process of generating the damping force f2 applied by the first damping member 24, which is primarily comprised of the first spring 241 and the first slider 242, to the first swing arm 221, in conjunction with the transmission process between the first cam surface 401 and the second cam surface 402.

[0095] For example, continue as Figure 11 As shown, when the first fixing bracket 222 is in the flattened state, the second cam surface 402 abuts the second surface S2. The first swing arm 221 can apply a thrust F1 to the first damping member 24, and the thrust F1 can be perpendicular to the second surface S2. At this time, the thrust F1 can cause the first spring 241 to undergo compression deformation. The force F2 generated by the first spring 241 during compression is opposite in direction to the thrust F1 (i.e., F2 is a reaction force to F1), and therefore, 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 applied 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 abut against the second surface S2 of the first cam surface 401 of the first swing arm 221, thereby achieving abutment between the first damping member 24 and the first swing arm 221.

[0097] Since the second surface S2 is tilted to the left, the first sliding block 242 abutting against the second surface S2 can be located below the first swing arm 221. In this way, the damping force f2 applied by the first damping member 24 to the first swing arm 221 can prevent the first swing arm 221 from sliding along the first direction X relative to the first fixing frame 222 away from the main shaft 21, thereby keeping the first fixing frame 222 as shown in FIG. Figure 7A In the flattened state shown, the first fixing frame 222 is suspended relative to the rotation position of the main shaft 21, so that the entire display terminal remains in the flattened state.

[0098] Or, for example, Figure 8As shown in FIG. 2 , when the first fixing frame 222 is in the folded state, the second cam surface 402 can abut against the first surface S1. As can be seen from the above, the first swing arm 221 applies a thrust F1 to the first damping member 24, so that the first damping member 24 generates a reaction force to the thrust F1, i.e., a force F2, toward the first swing arm 221. Figure 12 (For along Figure 8 As shown in a top view obtained by the direction B in FIG, the second surface S2 is inclined to the right, and the F2 has a component damping force f2 downward along the first direction. The damping force f2 can prevent the first swing arm 221 from sliding along the first direction X relative to the first fixing frame 222 toward the main shaft 21, thereby allowing the first fixing frame 222 to maintain the same Figure 8 In the folded state shown, the first fixing frame 222 is suspended relative to the rotation position of the main shaft 21, so that the entire display terminal remains in the folded state.

[0099] From the above, we can see that when the display terminal is in Figure 11 In the flattened state shown, the second cam surface 402 of the first slider 242 abuts against the second surface S2 of the first cam surface 401. Figure 12 In the folded state shown, the second cam surface 402 of the first slider 242 abuts the first surface S1 of the first cam surface 401. Since the first surface S1 is tilted to the right and the second surface S2 is tilted to the left, that is, the first surface S1 and the second surface S2 have different inclinations, the intersection of the first surface S1 and the second surface S2 is the reversal point of the first cam surface 401.

[0100] Based on this, when the user flattens the display terminal, Figure 13 As shown, the first swing arm 221 slides relative to the first fixing frame 222 along the first direction X toward the main shaft 21 (ie, along Figure 13 The second cam surface 402 gradually switches from abutting against the first surface S1 to abutting against the second surface S2.

[0101] In the related art, when the first swing arm 221 slides in the direction of the solid hollow arrow, the thrust F1 applied by the first swing arm 221 to the first damping member 24 has an upward component f1. At this time, the upward component f1 will cause a gap H to be generated between the first slider 242 and the first fixing frame 222 (for example, Figure 13In this case, when the abutment position of the first swing arm 221 and the first damping member 24 is switched by the reversal point of the first cam surface 401 to the second surface S2, the direction of the pushing force F1 exerted by the first swing arm 221 on the first damping member 24 changes, causing the upward component force 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 damping member 24 will impact the first fixed frame 222 at the position of the gap H at C, causing abnormal noise and reducing the user experience during the bending of the display terminal.

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

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

[0104] Continue as Figure 14As shown, the direction of the reaction force F3 is opposite to the direction of the force 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 abutment at the position opposite to the elastic abutment position (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 switched by the first cam surface 401 to the second surface S2, since the first damping member 24 and the first fixed frame 222 are in abutment at C, that is, there is no or almost no gap H between the first damping member 24 and the first fixed frame 222 at C, the first damping member 24 does not swing toward 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 reducing the probability of generating an abnormal sound during the folding of the display terminal.

[0105] The above is an example of the user sliding the first swing arm 221 relative to the first fixed frame 222 along the first direction X toward the main shaft 21 during the unfolding of the display terminal, and the elimination of the gap H at C below the second surface S2. Figure 13 In other embodiments of the present application, when the first damping member 24 and the first fixed frame 222 are in elastic abutment, the user slides the first swing arm 221 relative to the first fixed frame 222 along the first direction X away from the main shaft 21 during the folding of the display terminal, and the same reasoning can reduce the probability of the gap between the first damping member 24 and the first fixed frame 222, which will not be repeated here.

[0106] As can be seen from the above, Figure 15 As shown, the rotation 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). Figure 5A The connection mode of the second fixed frame 232 and the second housing 12 is the same as the connection mode of the first fixed frame 222 and the first housing 11 (as shown), which will not be repeated here. Figure 5A The connection mode of the second fixed frame 232 and the second housing 12 is the same as the connection mode of the first fixed frame 222 and the first housing 11 (as shown), which will not be repeated here.

[0107] The second swing arm 231 is rotatably connected with the main shaft 21, and the second swing arm 231 is also slidably connected with 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 rotatable connection between the second swing arm 231 and the main shaft 21 is the same as the rotatable connection between the first swing arm 221 and the main shaft 21, which will not be repeated here.

[0108] Similarly, in order to enable the first fixed frame 222 to keep the display terminal in the unfolded state as shown in FIG. 2A, or keep the display terminal in the folded state as shown in FIG. 2B, the second swing arm 231 can also be rotatably connected with the main shaft 21. Figure 7A Figure 8 Similarly, in order to enable the first fixed frame 222 to keep the display terminal in the unfolded state as shown in FIG. 2A, or keep the display terminal in the folded state as shown in FIG. 2B, the second swing arm 231 can also be rotatably connected with the main shaft 21. Figure 15 In addition, as shown in FIG. 2C, the second swing arm 231 can also be slidably connected with the second fixed frame 232 along the second direction Y. 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 second direction Y, so that the second swing arm 231 can move close to or away from the main shaft 21. In addition, the rotatable connection between the second swing arm 231 and the main shaft 21 is the same as the rotatable connection between the first swing arm 221 and the main shaft 21, which will not be repeated here.

[0109] Figure 15 In addition, as shown in FIG. 2C, the second swing arm 231 can also be slidably connected with the second fixed frame 232 along the second direction Y. 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 second direction Y, so that the second swing arm 231 can move close to or away from the main shaft 21. In addition, the rotatable connection between the second swing arm 231 and the main shaft 21 is the same as the rotatable connection between the first swing arm 221 and the main shaft 21, which will not be repeated here.

[0110] In this way, the hovering of the second fixed frame 232 relative to the rotation position of the main shaft 21 can be realized 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. 2A, or keeping the display terminal in the folded state as shown in FIG. 2B. Figure 15 Figure 16 In this way, the hovering of the second fixed frame 232 relative to the rotation position of the main shaft 21 can be realized 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. 2A, or keeping the display terminal in the folded state as shown in FIG. 2B.

[0111] Similarly, as shown in FIG. 2C, the second damping member 25 can be provided on the second fixed frame 232. The second damping member 25 can be slidably connected with the second fixed frame 232 along the second direction Y, so that the second damping member 25 can move towards or away from the second swing arm 231 along the second direction Y. Figure 15 ​​​As shown, when the user flattens the display terminal 01, the second swing arm 231 slides towards the main shaft 21, and a pushing force F1 is generated on the second damping member 25 abutting against the second swing arm 231, and the pushing force F1 has a component f1 in the first direction X and towards the main shaft 21 (i.e. upwards). Based on this, in the first direction X, the second damping member 25 elastically abuts against the second fixed frame 232, and thus elastic deformation occurs at the abutting position of the second damping member 25 and the second fixed frame 232. The above elastic deformation generates a reaction force F3 that can generate the component f1. The reaction force F3 can make both sides of the second damping member 25 abut against 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, and achieve the probability of generating the above gap H between the second damping member 25 and the second fixed frame 232, so as to achieve 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, Figure 15 The display terminal 01 can further include a first rotating arm 27 and a second rotating arm 28. The first rotating arm 27 is rotatably connected with the first fixed frame 222 and the main shaft 21. The second rotating arm 28 is rotatably connected with the second fixed frame 232 and the main shaft 21. The rotatable connection can be achieved by a rotating shaft or a virtual shaft, which is not limited in the application.

[0113] The above is an example of eliminating the gap between the first damping member 24 and the third member (e.g. the first fixed frame 222) in the process of the sliding part (e.g. the first swing arm 221) abutting against the cooperating part (e.g. the first damping member 24) through the cam surface (e.g. the first cam surface 401) in the rotating shaft mechanism 20. In the embodiments of the application, when the cooperating part and the third member generate a gap in the process of the other sliding part abutting against the cooperating part through the cam surface in the rotating shaft mechanism 20, the purpose of eliminating the gap can be achieved by elastically abutting the cooperating part and the third member. The types, structures and positions of the sliding part, the cooperating part and the third member are not limited in the application.

[0114] The above is an example of eliminating the gap between the first damping member 24 and the first fixed frame 222. The way of elastically abutting the second damping member 25 and the second fixed frame 232 is similar and has the same technical effect. As shown, Figure 17As shown, the first fixing frame 222 defines a first mounting slot 2221, within which the first damping member 24 can be disposed. Furthermore, the first damping member 24 can include a first spring 241 and a second slider 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. Along the first direction X, the first elastic abutment portion 201 can be located between the first slider 242 and the sidewall of the first mounting slot 2221, and the first slider 242 can abut against the sidewall of the first mounting slot 2221 via the first elastic abutment portion 201.

[0115] For example, Figure 18 (for Figure 17 As shown in a partial enlarged view in FIG, when the user flattens the display terminal, the first swing arm 221 slides relative to the first fixing frame 222 along the first direction X (for example, along Figure 18 As shown in the solid hollow arrow in the figure, when the first slide block 242 slides, the component force f1 of the thrust F1 applied by the first swing arm 221 to the first slide block 242 causes the first slide block 242 to approach the side wall of the first mounting groove 2221. Since the first elastic abutting portion 201 is located between the first slide block 242 and the side wall of the first mounting groove 2221, and the first slide block 242 abuts against the side wall of the first mounting groove 2221 via the first elastic abutting portion 201, the first slide block 242 squeezes the first elastic abutting portion 201 as it approaches the side wall of the first mounting groove 2221, causing the first elastic abutting portion 201 to undergo elastic deformation.

[0116] In this way, the reaction force F3 generated by the elastic deformation (which is in the opposite direction to the component force f1 of the thrust F1 applied by the first swing arm 221 to the first slider 242) can also cause the first damping member 24 to be in contact with the first fixing frame 222 at the side opposite to the elastic contact point (i.e., point C). When the contact point between the first swing arm 221 and the first damping member 24 quickly transitions from the reversal point of the first cam surface 401 to the second surface S2, the probability of the first damping member 24 impacting the first fixing frame 222 can be reduced.

[0117] On this basis, the example continues as follows Figure 17 As shown, on the first cam surface 401 of the first swing arm 221, a first angle α1 is formed between the first surface S1 and the extension direction of the main shaft 21, i.e., the axis O1-O2. Furthermore, on the first cam surface 401, a second angle α2 is formed between the second surface S2 and the extension direction of the main shaft 21, i.e., the second direction Y of the axis O1-O2. In some embodiments, α1>α2, resulting in a greater inclination of the second surface S2 relative to the first surface S1.

[0118] Based on this, continue as Figure 17As shown, the abutting position between the first swing arm 221 and the first slider 242 is converted from the first surface S1 to the second surface S2 in the first cam surface 401. Since the inclination directions of the first surface S1 and the second surface S2 are different, and the inclination degree of the second surface S2 is greater, in the case that the first slider 242 has a gap with the side wall of the first mounting slot 2221 at C, the first slider 242 will quickly approach the side wall of the first mounting slot 2221 at C, and then cause a greater impact on the side wall of the first mounting slot 2221, resulting in the phenomenon of the side wall being damaged.

[0119] Therefore, as shown, Figure 17 in the case that the first elastic abutting part 201 is located on the side of the first slider 242 facing the main shaft 21, the direction of the reaction force F3 generated after the elastic deformation of the first elastic abutting part 201 is towards the opposite side of the first elastic abutting part 201 (i.e. C), so that the first slider 242 can be pressed against the side wall of the first mounting slot 2221 at C to be in an abutting state with the side wall of the first mounting slot 2221, so that there is no or approximately no gap between the first slider 242 and the side wall of the first mounting slot 2221 at C. Therefore, even if the abutting position between the first swing arm 221 and the first slider 242 is converted from the first surface S1 to the second surface S2, it is difficult to cause the first slider 242 to quickly approach the side wall of the first mounting slot 2221 at C, so that the probability of the above impact can be more effectively reduced, and the reliability of the product can be improved.

[0120] In addition, as shown, Figure 17 As known from the above, in the process of sliding the first swing arm 221 relative to the first fixed frame 222 along the first direction X, a pushing force will be generated on the end of the first slider 242 facing the first swing arm 221, so that the end of the first slider 242 facing the first swing arm 221 swings in the first direction X. Therefore, in order to further reduce the impact of the first slider 242 on the side wall of the first mounting slot 2221 of the first fixed frame 222 in the above swinging process, in some embodiments, the first elastic abutting part 201 can be arranged at the end of the first slider 242 close to the first swing arm 221, relative to the end of the first slider 242 close to the fixed end a of the first spring 241.

[0121] In this way, as shown, Figure 18As shown, when the first swing arm 221 slides relative to the first fixing frame 222 along the first direction X, the first elastic abutting portion 201 is elastically deformed to generate the above-mentioned reaction force F3. Since the first elastic abutting portion 201 is arranged at the end of the first slider 242 close to the first swing arm 221, the gap between the first slider 242 and the side wall of the first mounting groove 2221 on the opposite side of the first elastic abutting portion 201 (i.e., at point C) can be reduced, thereby reducing the probability of the first slider 242 swinging in the first direction X toward the end of the first swing arm 221.

[0122] The structure of the first elastic abutting portion 201 is described in detail below. In some embodiments of the present application, the first elastic abutting portion 201 may include: Figure 19 The first elastic arm 2011 is shown. The first elastic arm 2011 may have a first end a3 and a second end a4 disposed opposite to each other. The first end a3 of the first elastic arm 2011 is disposed 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 disposed toward the first swing arm 221 relative to the first end a3.

[0123] In addition, if Figure 20 As shown, the first end a3 of the first elastic arm 2011 is connected to the side of the first slider 242. For example, the first end a3 of the first elastic arm 2011 can be connected to the first slider 242 to form an integral structure. For example, the first slider 242 and the first elastic arm 2011 connected as an integral structure can be formed by injection molding. The first elastic arm 2011 is connected to the first mounting groove 2221 (as shown in FIG. Figure 19 In addition, a first gap 101 may be provided between the first elastic arm 2011 and the first slider 242.

[0124] In this case, continue as Figure 19 As shown, during the sliding process of the first swing arm 221 relative to the first fixing frame 222 along the first direction X, since the first elastic arm 2011 abuts against the side wall of the first installation groove 2221, the component force of the thrust applied by the first swing arm 221 to the first slider 242 causes the side wall of the first installation groove 2221 to press the first elastic arm in the opposite direction. Figure 20 As shown, there is a first gap 101 between the first elastic arm 2011 and the first slider 242. The first gap 101 can provide space for elastic deformation to the first elastic arm 2011, so that the first elastic arm 2011 can undergo elastic deformation, thereby generating the above-mentioned reaction force F3 for reducing the occurrence of collision.

[0125] On this basis, the above-mentioned rotating shaft mechanism also includes the following Figure 20In the case of the first guide portion 51 shown, the second end a4 of the first elastic arm 2011 can also be connected to the first guide portion 51. For example, the first slider 242, the first elastic arm 2011, and the first guide portion 51 can be formed as an integral structural member by an injection molding process. In addition, a third gap 103 can be defined between the first elastic arm 2011 and the first guide portion 51, and the third gap 103 can be connected to the first gap 101.

[0126] In this way, continue as Figure 20 As shown, by connecting the second end a4 of the first elastic arm 2011 to the first guide portion 51, the rigidity of the first elastic arm 2011 can be improved, and thus when the first elastic arm 2011 undergoes elastic deformation, sufficient reaction force F3 can be generated to reduce or even eliminate the opposite side of the first elastic abutting portion 201 (i.e. Figure 18 The third gap 103 is connected to the first gap 101, thereby preventing all portions of the first elastic arm 2011 from being connected to the first guide portion 51, which would make it difficult or impossible for the first elastic arm 2011 to elastically deform.

[0127] The above is based on Figure 20 The third gap 103 is connected to the first gap 101. In other embodiments of the present application, the third gap 103 may be disconnected from the first gap 101 to simplify the manufacturing process.

[0128] From the above, we can see that Figure 19 As shown, the second end a4 of the first elastic arm 2011 abuts the side wall of the first mounting groove 2221. For example, the second end a4 of the first elastic arm 2011 can directly contact the side wall of the first mounting groove 2221. The surface of the side wall of the first mounting groove 2221 that abuts the first elastic arm 2011 is flat. In this case, during mass production of the display terminals, the flatness of the surface of the side wall of each first mounting groove 2221 that abuts the first elastic arm 2011 needs to be precisely controlled to ensure that the degree of abutment between the first elastic arm 2011 and the side wall of the first mounting groove 2221 in each display terminal meets the design requirements. This places high demands on the manufacturing precision of the product, which increases production costs.

[0129] In order to solve the above problems, Figure 21As shown, the hinge mechanism 20 may further include a first block-shaped abutting portion 61. The first block-shaped abutting portion 61 is disposed 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 manner, the first block-shaped abutting portion 61 may protrude from the sidewall of the first mounting groove 2221, allowing the first elastic arm 2011 to indirectly abut the sidewall of the first mounting groove 2221 via the first block-shaped abutting portion 61. In this case, the area of ​​direct contact between the first block-shaped abutting portion 61 and the first elastic arm 2011 is smaller than the area of ​​direct contact between the sidewall of the first mounting groove 2221 and the first elastic arm 2011. This helps reduce the control accuracy of the surface flatness of the abutment between the first block-shaped abutting portion 61 and the first elastic arm 2011 during mass production.

[0130] On this basis, if Figure 22 (For along Figure 21 (a top view taken along the E direction in FIG. 2 ), a fourth gap 104 may be provided between the side wall of the first mounting groove 2221 provided with the first block-shaped abutting portion 61 and the first slider 242. Thus, when the first elastic arm 2011 directly abuts the first block-shaped abutting portion 61 provided on the side wall of the first mounting groove 2221, the fourth gap 104 provided between the side wall of the first mounting groove 2221 and the first slider 242 prevents direct contact between the side wall of the first mounting groove 2221 and the first slider 242, thereby reducing friction during the sliding of the first slider 242 in the second direction Y.

[0131] Alternatively, in some other embodiments of the present application, the first elastic abutting portion for achieving elastic abutment between the first slider 242 in the first damping member 24 and the side wall of the first mounting groove 2221 opened on the first fixing frame 222 may also include: Figure 23 The second elastic arm 2012 is shown. A first groove 200 is defined on the sidewall of the first mounting slot 2221. The two ends of the second elastic arm 2012 can be connected to two opposing sidewalls of the first groove 200. Furthermore, the second elastic arm 2012 protrudes toward the first slider 242. Furthermore, the second elastic arm 2012 and the first groove 200 can enclose a second gap 102.

[0132] For example, the second elastic arm 2012 can be connected to the first fixing frame 222 having the first mounting slot 2221 as an integral structure. For example, the first fixing frame 222 and the second elastic arm 2012 can be formed as an integral structure by injection molding.

[0133] In addition, the second elastic arm 2012 can abut against the first slider 242. In this case, continue as Figure 23As shown, during the sliding movement of the first swing arm 221 relative to the first fixing frame 222 along the first direction X, the second elastic arm 2012 protrudes toward the first slider 242 and abuts against the first slider 242. Therefore, the component of the thrust exerted by the first swing arm 221 on the first slider 242 will squeeze the second elastic arm 2012. Furthermore, the second elastic arm 2012 and the first groove 200 define a second gap 102. The second gap 102 can provide space for the second elastic arm 2012 to elastically deform, thereby enabling the second elastic arm 2012 to elastically deform and thereby generate the aforementioned reaction force F3, thereby reducing the probability of collision.

[0134] On this basis, continue Figure 24 As shown, when a first sliding groove 2220 extending along the second direction Y is formed on the side wall of the first installation groove 2221, the second gap 102 can be connected to the first sliding groove 2220. In this way, a portion of the first sliding groove 2220 can also serve as a space for the elastic deformation of the second elastic arm 2012, thereby making it easier for the second elastic arm 2012 to elastically deform after being compressed.

[0135] The above is based on Figure 24 The second gap 102 may be connected to the first sliding groove 2220. In other embodiments of the present application, the second gap 102 may not be connected to the first sliding groove 2220 in order to simplify the manufacturing process.

[0136] In addition, the above-mentioned rotating shaft mechanism may also include Figure 24 The second block-shaped abutment portion 62 is provided on the second elastic arm 2012 for engaging with the first slider 242 (eg Figure 23 As shown, the second block-shaped abutting portion 62 can protrude from the surface of the second elastic arm 2012 that abuts the first slider 242, allowing the first slider 242 to indirectly abut the second elastic arm 2012 via the second block-shaped abutting portion 62. Similarly, compared to the area of ​​the surface of the second elastic arm 2012 that directly abuts the first slider 242, the area of ​​direct contact between the second block-shaped abutting portion 62 and the first slider 242 is smaller. This helps reduce the control accuracy of the flatness of the surface where the second block-shaped abutting portion 62 abuts the first slider 242 during mass production.

[0137] Alternatively, in some other embodiments of the present application, the first elastic abutting portion for achieving elastic abutment between the first slider 242 in the first damping member 24 and the side wall of the first mounting groove 2221 provided on the first fixing frame 222 may further include: Figure 25 The elastic buffer 2013 shown. Figure 26As shown, a second groove 202 is formed on the side wall 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 to the first slider 242.

[0138] For example, the first slider 242 and the elastic buffer 2013 can be formed as an integral structural component by insert molding. The elastic buffer 2013 can be made of a soft rubber material, such as silicone or thermoplastic urethane (TPU). The elastic buffer 2013 is more susceptible to elastic deformation than the first slider 242.

[0139] Based on this, Figure 26 The elastic buffer 2013 in the embodiment may be partially exposed so that the elastic buffer 2013 can be Figure 25 Similarly, in this case, continue as Figure 25 As shown, when the first swing arm 221 slides relative to the first fixing frame 222 along the first direction X, since the elastic buffer 2013 abuts against the side wall of the first mounting groove 2221, the component of the thrust applied by the first swing arm 221 to the first slider 242 will squeeze the elastic buffer 2013, so that the elastic buffer 2013 can undergo elastic deformation, thereby generating the above-mentioned reaction force F3, thereby reducing the probability of collision.

[0140] On this basis, continue Figure 26 As shown, the first slider 242 is further provided with a first connection hole 301 extending through the first slider 242. The first connection hole 301 can communicate with the second groove 202, and a portion of the elastic buffer 2013 is embedded in the first connection hole 301. As a result, the portion of the elastic buffer 2013 embedded in the second groove 202 and the portion embedded in the first connection hole 301 can both be connected to the first slider 242, thereby increasing the connection area between the elastic buffer 2013 and the first slider 242 and improving the reliability of the connection between the elastic buffer 2013 and the first slider 242.

[0141] In addition, continue as Figure 26 As shown, the above-mentioned rotating shaft mechanism also includes Figure 20In the illustrated embodiment of the first guide portion 51, a second connecting hole 302 can be formed on the first guide portion 51 and penetrate the first guide portion 51. The second connecting hole 302 can communicate with the second groove 202. Furthermore, a portion of the elastic buffer 2013 is embedded in the second connecting hole 302. Similarly, the portions of the elastic buffer 2013 embedded in the second groove 202 and the second connecting hole 302 can both be connected to the first slider 242, thereby improving the reliability of the connection between the elastic buffer 2013 and the first slider 242.

[0142] On this basis, the shaft mechanism 20 may further include: Figure 21 The first block-shaped abutting portion 61 is provided on the side wall of the first mounting groove 2221 and can directly contact the elastic buffer 2013. The technical effect of the first block-shaped abutting portion 61 is the same as described above and will not be repeated here.

[0143] The above is that the rotating shaft mechanism has a first elastic contact portion (including Figure 20 The first elastic arm 2011 shown, Figure 24 The second elastic arm 2012 or Figure 25 The present invention provides an example of a first elastic abutment portion (e.g., any one of the elastic buffer members 2013 shown in FIG. 2 ). In other embodiments of the present application, the first elastic abutment portion may include a first elastic arm 2011 and a second elastic arm 2012. Alternatively, the first elastic abutment portion may include a second elastic arm 2012 and an elastic buffer member 2013. The technical effects of the first elastic abutment portion are the same as those described above and will not be further elaborated here.

[0144] Alternatively, in other embodiments of the present application, Figure 27 As shown, the hinge mechanism 20 may include two first elastic abutment portions, namely a first inner elastic abutment portion 201a and a first outer elastic abutment portion 201b. The first inner elastic abutment portion 201a is located on the side of the first slider 242 facing the main axis (i.e., where the axis O1-O2 is located), while the first outer elastic abutment portion 201b is located on the side of the first slider 242 facing away from the main axis (i.e., where the axis O1-O2 is located).

[0145] in, Figure 27 The first inner elastic abutting portion 201a and the first outer elastic abutting portion 201b are both Figure 26 In other embodiments of the present application, any one of the first inner elastic abutting portion 201a and the first outer elastic abutting portion 201b may also be Figure 20 The first elastic arm 2011 or Figure 24 The second elastic arm 2012 is shown.

[0146] In this way, continue as Figure 27 As shown, in the sliding direction of the first slider 242, i.e., the second direction Y, both sides of the first slider 242 can elastically abut against the sidewalls of the first mounting groove 2221. Therefore, as the first swing arm 221 slides relative to the first fixing frame 222 along the first direction X, the first inner elastic abutting portion 201a and the first outer elastic abutting portion 201b can both elastically deform, thereby allowing both sides of the first slider 242 to maintain abutment against the sidewalls of the first mounting groove 2221, thereby reducing the occurrence of collisions and abnormal noises caused by the swing of the first slider 242.

[0147] The above is an example of the elastic contact between the first damping member 24 and the first fixing frame 222. Figure 28 As shown, the elastic abutment between the second damping member 25 and the second fixing frame 232 and the technical effects thereof can be similarly achieved. For example, the second fixing frame 232 can be provided with a second mounting groove 2321. The first damping member 24 can be disposed within the second mounting groove 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 coupled to the sidewall of the second mounting groove 2321 along the second direction Y. The configuration of the second slider 252 and the second spring 251 is the same as described above and will not be further elaborated here.

[0148] On this basis, in order to make the second damping member 25 elastically contact the second fixing frame 232, continue as follows Figure 28 As shown, the hinge mechanism 20 may further include a second elastic abutment portion 203. The second elastic abutment portion 203 may be located between the second slider 252 and the sidewall of the second mounting groove 2321, and the second slider 252 may abut against the sidewall of the second mounting groove 2321 through the second elastic abutment portion 203.

[0149] Similarly, Figure 28 The second elastic contact portion 203 is Figure 26 The elastic buffer 2013 shown in FIG. 2 is used as an example for illustration. In other embodiments of the present application, the second elastic abutment portion 203 may be Figure 20 The first elastic arm 2011 or Figure 24 The second elastic arm 2012 is shown. The configuration of the second elastic abutting portion 203 and the technical effect thereof are similar to those of the first elastic abutting portion 201, and are not described in detail here.

[0150] The above merely provides the specific implementation of the present application, but the protection scope of the present application is not limited to this. Any change or replacement within the technical scope disclosed by the present application should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A 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