Hinge mechanism and folding terminal

Abstract

The present disclosure relates to a hinge mechanism and a foldable terminal, belonging to the field of electronic devices. The hinge mechanism comprises a base frame and two opposing foldable components; the foldable components comprise at least a first support member and a second support member; one end of the first support member and one end of the second support member are both movably connected to the base frame, and the first and second support members of the same foldable component are arranged side by side; the other end of the second support member is hingedly connected to the second end of the first support member; the second support member is used to support the screen of the foldable terminal when the hinge mechanism is in the folded state. In this way, the screen is supported at least by the second support member, so that the screen of the foldable terminal fits tightly.

Description

Technical Field

[0001] The present disclosure relates to the field of electronic devices, and in particular to a hinge mechanism and a foldable terminal. Background Art

[0002] Foldable electronic terminals such as foldable mobile phones and foldable computers all use a hinge mechanism to achieve the folding or unfolding of the screen.

[0003] When the hinge mechanism provided by the related art is in a folded state, there is a large wedge-shaped gap between the two screen support plates, so that when the hinge mechanism is used in an electronic terminal, the screen of the electronic terminal cannot fit tightly in the folded state.

[0004] Public content

[0005] In order to overcome the problems existing in the related art, the present disclosure provides a hinge mechanism and a folding terminal.

[0006] According to a first aspect of an embodiment of the present disclosure, there is provided a hinge mechanism, the hinge mechanism comprising at least: a base frame, two folding assemblies arranged opposite to each other;

[0007] Wherein, the folding assembly comprises at least: a first support member and a second support member;

[0008] One end of the first support member and one end of the second support member are both movably connected to the base frame, and the first support member and the second support member of the same folding assembly are arranged side by side; the other end of the second support member is hinged to the second end of the first support member;

[0009] The second supporting member is used to support the foldable terminal when the hinge mechanism is in a folded state.

[0010] In some possible implementations, the folding assembly further includes: a swing rod, one end of which is hinged to the base frame, and the other end of which is slidably connected to the second support member; one end of the first support member is hinged to the base frame;

[0011] Wherein, when the hinge mechanism is in a folded state, the angle between the two second supporting members arranged opposite to each other is smaller than or equal to the angle between the two first supporting members arranged opposite to each other;

[0012] When the hinge mechanism is in an unfolded state, the first support member and the second support member jointly support the foldable terminal.

[0013] In some possible implementations, the bearing area of ​​the second support member is larger than the bearing area of ​​the first support member.

[0014] In some possible implementations, the folding assembly further includes: a connecting member and a third supporting member;

[0015] The connecting member is hinged to the first supporting member, and the connecting member and the first supporting member are arranged side by side;

[0016] One end of the third support member is hinged to the base frame, the other end of the third support member is slidably connected to the connecting member, and the third support member is located on a side away from the bearing surface of the first support member.

[0017] In some possible implementations, the second support member includes: a support body portion, a sliding connection portion connected to the support body portion;

[0018] The other end of the support body is hinged to the other end of the first support member via a first hinge shaft, and the first hinge shaft and the sliding connection portion are respectively located on two opposite sides of the support body;

[0019] The sliding connection portion is slidably connected to the rocker.

[0020] In some possible implementations, the sliding connection portion has a first guide groove, and the first guide groove extends along an axial direction perpendicular to the first hinge axis;

[0021] The sliding connection portion is slidably connected to the rocker arm through the first guide groove.

[0022] In some possible implementations, the two supporting body parts corresponding to the two folding components are provided with avoidance grooves, and the avoidance groove of one of the folding components is used to accommodate the sliding connection part of the other folding component.

[0023] In some possible implementations, a first guide portion is provided at one end of the first support member, and a second guide portion is provided on the base frame. One of the first guide portion and the second guide portion is an arc-shaped guide rail, and the other is an arc-shaped guide groove adapted to the arc-shaped guide rail; the first support member is hinged to the base frame through the first guide portion and the second guide portion.

[0024] In some possible implementations, the other end of the first support member is provided with at least one hinged portion, and the axial direction of the at least one hinged portion is parallel to the tangent direction of the bearing surface of the first support member; the second support member and the connecting member are hinged to the first support member through different hinged portions.

[0025] In some possible implementations, the connecting member includes: a first plate segment and a second plate segment that are stacked;

[0026] The first plate segment is hinged to the first support member, and the first connector segment is further used to connect to the housing of the folding terminal;

[0027] The second plate segment is slidably connected to the third support member.

[0028] In some possible implementations, the second plate segment has a second guide groove, and the second guide groove extends in a direction perpendicular to a tangential direction of the bearing surface of the first support member;

[0029] The second plate segment is slidably connected to the third support member via the second guide groove.

[0030] In some possible implementations, the hinge mechanism further includes: a linkage member; the base frame has a receiving cavity, the receiving cavity includes: a middle cavity section, and two side cavity sections located on both sides of the middle cavity section; the linkage member is located in the middle cavity section and the base frame is hinged;

[0031] One end of the third support member is provided with a linkage portion, the linkage portion is located in the side cavity section and is hinged to the base frame;

[0032] The linkage portion is adapted to the linkage member, and the linkage member and the linkage portion are configured to enable the two folding components to be linked to each other so as to perform folding and unfolding movements synchronously.

[0033] In some possible implementations, the linkage member and the linkage portion are linked by gear transmission.

[0034] According to a second aspect of an embodiment of the present disclosure, there is provided a foldable terminal comprising any one of the hinge mechanisms described above.

[0035] In some possible implementations, the foldable terminal is a foldable mobile phone, a foldable tablet computer, or a foldable e-reader.

[0036] The technical solutions provided by the embodiments of the present disclosure may have the following beneficial effects:

[0037] In the disclosed embodiment, the second support member is hingedly connected to the first support member, allowing the second support member to rotate relative to the first support member. The second support member is movably connected to the base frame, allowing the second support member to fold or unfold relative to the base frame. When the hinge mechanism is in the folded state, at least the second support member supports the screen of the foldable terminal, enabling the screen of the foldable terminal to fit tightly.

[0038] Among them, the angle between the two second support members can be made equal to the angle between the two first support members. In this way, when the hinge mechanism is in a folded state, the first support member and the second support member jointly support the screen of the folding terminal. In this state, the bearing area of ​​the screen is the sum of the bearing areas of the first support member and the second support member. The larger bearing area is conducive to making the screen of the folding terminal fit tightly.

[0039] Alternatively, the angle between the two second support members can be smaller than the angle between the two first support members. This allows the second support members to support the foldable terminal's screen when the hinge mechanism is folded. To further enhance the tight fit between the foldable terminal's screens, the bearing area of ​​the second support members can be made larger than that of the first support members. By increasing the bearing area of ​​the support members, the terminal's bearing area is increased. This way, when the hinge mechanism is folded, the foldable terminal's screen is supported by the second support members with a larger bearing area, and the screen's force-bearing area is correspondingly increased, facilitating a tight fit of the foldable terminal's screen.

[0040] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0042] Figure 1 is a schematic diagram showing a hinge mechanism transitioning from an unfolded state to a folded state according to an exemplary embodiment;

[0043] Figure 2 is a schematic diagram showing a hinge mechanism in a state between an unfolded state and a folded state according to an exemplary embodiment;

[0044] Figure 3 is a schematic diagram showing the arrangement relationship of two second support members in a hinge mechanism according to an exemplary embodiment;

[0045] Figure 4 is a schematic diagram showing the connection relationship between the first support member and the base frame in a hinge mechanism according to an exemplary embodiment;

[0046] Figure 5 is a structural schematic diagram showing a hinge mechanism in a folded state according to an exemplary embodiment;

[0047] Figure 6 is a structural schematic diagram of a linkage member and a linkage portion of a hinge mechanism according to an exemplary embodiment;

[0048] Figure 7 The figure is a schematic diagram showing the assembly relationship between the linkage member and the linkage portion of the hinge mechanism according to an exemplary embodiment.

[0049] The reference numerals represent:

[0050] 1- Base frame,

[0051] 11-middle connecting section, 12-first side connecting section, 13-second side connecting section,

[0052] 14-end connection section, 15-assembly cavity, 16-threaded hole,

[0053] 100-accommodation cavity, 1001-middle cavity section, 1002-side cavity section, 110-second via hole, 141-first via hole,

[0054] 2-first support member, 21-support body, 22-first guide part, 23-first hinge part,

[0055] 24-second hinge part, 25-third hinge part, 26-installation slot,

[0056] 2a-first end, 2b-second end, 2c-third end,

[0057] 3- Second support member,

[0058] 31-support body, 32-sliding connection part, 33-first guide groove, 34-avoidance groove,

[0059] 4-rocker, 41-main section, 42-first connecting section, 43-second connecting section,

[0060] 5-connecting piece, 51-first plate segment, 52-second plate segment, 53-second guide groove,

[0061] 6-third support member, 61-linking part, 62-reinforcement part, 63-main body,

[0062] 7- First articulated axis,

[0063] 81-arc guide rail, 82-arc guide groove,

[0064] 9- Second articulated axis,

[0065] 10- linkage, 101- gear,

[0066] 111-The third articulated axis. DETAILED DESCRIPTION

[0067] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0068] Foldable electronic terminals, such as foldable mobile phones and foldable computers, have the advantages of a large screen and a small size when folded. They not only bring a better experience in reading, office work, gaming and other fields, but are also easy to carry, and are attracting more and more attention from users.

[0069] Foldable electronic terminals include flexible screens, which are folded or unfolded using a hinge mechanism. Due to the irrational structure of existing hinge mechanisms, a large wedge-shaped gap exists between the two screen support plates when the hinge mechanism is in the folded state. This prevents the screen of the electronic terminal from fitting tightly together when folded. For example, at least half of the screen area is not tightly fitted. This not only poorly experiences a poor user experience but also compromises screen protection.

[0070] According to one aspect of an embodiment of the present disclosure, a hinge mechanism is provided, which can be used for a foldable terminal. Exemplarily, the foldable terminal can be a foldable mobile phone or a foldable tablet computer.

[0071] Taking a foldable phone as an example, the structure of a foldable terminal is described. A foldable phone comprises at least: a flexible screen, a bottom cover, two housings, and a hinge mechanism. The two housings are symmetrically arranged and connected by a hinge mechanism. The flexible screen is located inside the first and second housings and can fold or unfold accordingly with the hinge mechanism. The bottom cover is located at the junction of the first and second housings. The hinge mechanism allows the two housings to fold or unfold, and when the two housings are folded, the bottom cover conceals the gap between them.

[0072] For example, the foldable mobile phone is folded in the left-right direction, so that one of the two shells serves as a left shell and the other serves as a right shell;

[0073] For example, the foldable mobile phone is folded in the up and down directions, so that one of the two shells serves as an upper shell and the other serves as a lower shell.

[0074] Figure 1 A structural diagram of a hinge mechanism is shown in the attached figure. Figure 1As shown, the hinge mechanism provided in the embodiment of the present disclosure includes: a base frame 1, and two folding assemblies arranged opposite to each other. It should be noted that the number of folding assemblies in the hinge mechanism can be an even number, that is, the number of folding assemblies in the hinge mechanism is not limited to two. If the hinge mechanism includes at least two folding assemblies, the folding assemblies can be arranged opposite to each other in pairs, and the two folding assemblies arranged opposite to each other can perform folding or unfolding motion relative to the base frame 1.

[0075] In the embodiment of the present disclosure, as shown in the attached Figure 1 As shown, the folding assembly includes a first support member 2 and a second support member 3. One end of the first support member 2 and one end of the second support member 3 are both movably connected to the base frame 1, and the first support member 2 and the second support member 3 of the same folding assembly are arranged side by side; one end of the second support member 3 is hinged to the other end of the first support member 2, and the second support member 3 is used to support the screen of the folding terminal when the hinge mechanism is in the folded state.

[0076] For example, in the embodiment of the present disclosure, as shown in the attached Figure 1 As shown, the first support member 2 is located on one side of the base frame 1, and the end of the first support member 2 facing the base frame 1 and movably connected to the base frame 1 is called the first end 2a; the first support member 2 and the second support member 3 are arranged side by side, and the end of the first support member 2 facing the second support member 3 is called the second end 2b.

[0077] In the embodiment of the present disclosure, the second support member 3 is located on the same side of the base frame 1 and the first support member 2. That is, the second support member 3 has a portion located on one side of the first support member 2 and another portion located on the other side of the base frame 1. In this way, the second support member 3 not only satisfies the requirement of being arranged side by side with the second support member 3, but also can be movably connected to the base frame 1. Exemplarily, the end of the second support member 3 facing both the base frame 1 and the first support member 2 is referred to as the first end portion, the first side of the first end portion of the second support member 3 is hinged to the second end portion 2b of the first support member 2, and the second side of the first end portion of the second support member 3 is movably connected to the base frame 1.

[0078] In the disclosed embodiment, the second support member 3 is hingedly connected to the first support member 2, allowing the second support member 3 to rotate relative to the first support member 2. The second support member 3 is movably connected to the base frame 1, allowing the second support member 3 to fold or unfold relative to the base frame 1. When the hinge mechanism is in the folded state, at least the second support member 3 is used to support the screen of the foldable terminal, conforming to the shape of the folded screen of the foldable terminal, and ensuring a tight fit of the screen.

[0079] In some possible implementations, such as the attached Figure 1As shown, the folding assembly provided in the embodiment of the present disclosure further includes a swing rod 4, one end of which is hinged to the base frame 1, and the other end of which is slidably connected to the second support member 3. One end of the first support member 2 is hinged to the base frame 1, that is, the movable connection between the first support member 2 and the base frame 1 is a hinge.

[0080] Among them, when the hinge mechanism is in a folded state, the angle between the two second support members 3 is less than or equal to the angle between the two first support members 2; when the hinge mechanism is in an unfolded state, the first support member 2 and the second support member 3 jointly support the screen of the folding terminal.

[0081] The first side of the first end of the second support member 3 is hinged to the second end of the first support member 2. The second support member 3 is also movably connected to the base frame 1 through a rocker rod 4 hinged on the base frame 1, so that the second support member 3 also performs linear motion relative to the base frame 1 when rotating.

[0082] The design of the rocker 4 and the second support member 3 allows, on the one hand, the second support member 3 and the first support member 2 to jointly support the screen of the foldable terminal when the hinge mechanism is in the unfolded state. On the other hand, the first support member 2 and the second support member 3 can rotate simultaneously, and the angles of rotation can be different. For example, when the hinge mechanism is in the folded state, the first support member 2 and the second support member 3 have different inclinations, and the angle between the two second support members 3 corresponding to the two foldable components is less than or equal to the angle between the two first support members 2, so that the second support members 3 are used to support the screen of the foldable terminal.

[0083] In some examples, the angle between the two second support members 3 is equal to the angle between the two first support members 2. In this way, when the hinge mechanism is in a folded state, the first support member 2 and the second support member 3 jointly support the screen of the folding terminal. In this state, the bearing area of ​​the screen is the sum of the bearing areas of the first support member 2 and the second support member 3. This bearing area is larger, which is conducive to making the screen of the folding terminal fit tightly.

[0084] In some examples, the angle between the two second support members 3 is smaller than the angle between the two first support members 2. This allows the second support members 3 to support the foldable terminal's screen when the hinge mechanism is folded. To further enhance the tight fit between the foldable terminal's screens, the bearing area of ​​the second support members 3 is made larger than that of the first support members 2. By increasing the bearing area of ​​the support members, the terminal's bearing area is increased. This way, when the hinge mechanism is folded, the foldable terminal's screen is supported by the second support members with a larger bearing area, and the screen's force-bearing area is correspondingly increased, facilitating a tight fit of the foldable terminal's screen.

[0085] When the angle between the two second support members 3 is smaller than the angle between the two first support members 2, the wedge-shaped gap between the two second support members 3 is smaller than the wedge-shaped gap between the two first support members 2. In other words, the second support members 3 are further tilted inward relative to the first support members 2, and the wedge-shaped gap between the two second support members 3 becomes smaller relative to the wedge-shaped gap between the two first support members 2. In this way, the two second support members 3 better conform to the shape of the foldable terminal screen in the folded state. Using the second support members 3 to support the foldable terminal screen can make the foldable terminal screen fit tightly. The two first support members 2 also better conform to the shape of the foldable terminal shell in the folded state relative to the second support members 3, facilitating direct or indirect connection with the foldable terminal shell.

[0086] It should be noted that when the hinge mechanism is in the extended state, the first support member 2 and the second support member 3 jointly support the screen of the foldable terminal. This can be understood as the bearing surfaces of the first support member 2 and the second support member 3 being in the same plane. The extended state of the hinge mechanism can be understood as the two foldable components arranged relative to each other reaching their extended limit position or fully extended state; the folded state of the hinge mechanism can be understood as the two foldable components arranged relative to each other reaching their folded limit position.

[0087] As can be seen, when the hinge mechanism is in the unfolded state, the bearing surfaces of the second support member 3 and the first support member 2 are coplanar, jointly supporting the foldable terminal's screen and facilitating its flat unfolding. When the hinge mechanism transitions from the unfolded state to the folded state, the angle between the two second support members 3 is less than or equal to the angle between the two first support members 2. At least the second support members 3 support the foldable terminal's screen, ensuring a tight fit. This arrangement not only improves the user experience but also protects the foldable terminal's screen.

[0088] The base frame 1 is hinged to the first support member 2 and the swing arm 4, so that the base frame 1 acts as a hinge base. The base frame 1 is also used to connect to the bottom cover of the folding terminal.

[0089] For example, as shown in the attached Figure 4 As shown, the base frame 1 includes: a middle connecting section 11, a first side connecting section 12, a second side connecting section 13 and an end connecting section 14. The first side connecting section 12 and the second side connecting section 13 are respectively connected to the two opposite sides of the middle connecting section 11, and the three constitute the main body of the base frame; the end connecting section 14 is connected to one end of the main body of the base frame facing the second support member 3.

[0090] The end of the middle connecting section 11 of the base frame 1 away from the end connecting section 14 is used to connect to the bottom cover of the folding terminal. The structure of the middle connecting section 11 is adapted to the structure of the bottom cover of the folding terminal. For example, the middle connecting section 11 is an arc-shaped plate structure. Figure 4 As shown, a threaded hole 16 is provided on the end portion of the middle connecting section 11 , and the middle connecting section 11 can be fixed to the bottom cover of the folding terminal by using screws.

[0091] The rocker arm 4 has an articulated relationship with the base frame 1, wherein, when the hinge mechanism is in the unfolded state, the rocker arm 4 can move to make the bearing surfaces of the second support member 3 and the first support member 2 on the same plane to jointly support the screen of the folding terminal, and, when the hinge mechanism is in the folded state, the rocker arm 4 can also move to make the angle between the two second support members 3 less than or equal to the angle between the two first support members 2, so that at least the second support member 3 supports the screen of the folding terminal.

[0092] In some possible implementations, such as the attached Figure 2 As shown, the rocker arm 4 includes: a main body section 41, a first connecting section 42 and a second connecting section 43, wherein the first connecting section 42 and the second connecting section 43 are respectively vertically connected to the two ends of the main body section 41, and the first connecting section 42 and the second connecting section 43 extend in opposite directions.

[0093] The first connecting section 42 is also hinged to the base frame 1 , the second connecting section 43 is also slidably connected to the second support member 3 , and the main body section 41 is located between the first end of the second support member 3 and the end of the base frame 1 .

[0094] Exemplarily, the first connecting section 42 and the second connecting section 43 are both cylindrical rod bodies. The first connecting section 42 hinged to the base frame 1 acts as the active end during the movement of the rocker arm 4, and the second connecting section 43 slidingly connected to the second support member 3 acts as the driven end. In order to improve the transmission efficiency, the diameter of the first connecting section 42 can be made larger than the diameter of the second connecting section 43.

[0095] The main body section 41 can be a flat plate-like structure, and both connecting ends of the main body section 41 can be designed to be arc-shaped to accommodate the aforementioned connecting sections of the cylindrical rod structure. If the first connecting section 42 and the second connecting section 43 have different diameters, the structural adaptability of the main body section 41 can be designed to have different areas at the two connecting ends. For example, the width of the main body section 41 gradually decreases from the end connecting the first connecting section 42 to the end connecting the second connecting section 43.

[0096] The first connecting section 42 and the second connecting section 43 are respectively located on different sides of the main section 41. The first connecting section 42 extends toward the end of the base frame 1 until it is hinged to the base frame 1, and the second connecting section 43 extends toward the first end of the second support member 3 until it is slidably connected to the second support member 3.

[0097] Regarding the hinged connection between the first connecting segment 42 and the base frame 1, for example, a first through-hole 141 is formed on the end connecting segment 14, and a corresponding second through-hole 110 is formed on the middle connecting segment 11. The first connecting segment 42 sequentially passes through the first through-hole 141 and the second through-hole 110 and is retained therein, facilitating assembly. For example, a stopper, such as a nut, is provided at the free end of the first connecting segment 42. This allows the first connecting segment 42 to only rotate about the base frame 1, preventing axial movement.

[0098] The second support member 3 is slidably connected to the second connecting section 43 of the rocker arm 4. In some possible implementations, as shown in the attached Figure 2 Or attach Figure 3 As shown, the second support member 3 includes: a support body portion 31 and a sliding connection portion 32 connected to the support body portion 31 .

[0099] The first end of the support body portion 31 is hinged to the second end of the first support member 2 through the first hinge shaft 7. The first hinge shaft 7 and the sliding connection portion 32 are respectively located on opposite sides of the support body portion 31; the sliding connection portion 32 is slidingly connected to the second connection section 43.

[0100] Exemplarily, the supporting body portion 31 is in the shape of a flat plate, and the sliding connection portion 32 may be in the shape of an elongated plate or an elongated rod. The supporting body portion 31 and the sliding connection portion 32 may be manufactured by an integral molding process.

[0101] As attached Figure 3 As shown, the first end of the support body portion 31 is hinged to the second end of the first support member 2 through the first hinge shaft 7. For example, one end of the first hinge shaft 7 can be connected to the first end of the support body portion 31. For example, the first hinge shaft 7 can be formed on the support body portion 31 in an integrated molding manner and extend in a direction away from the first end of the support body portion 31 to simplify the preparation process.

[0102] Accordingly, as attached Figure 4 As shown, the second end of the first support member 2 is provided with a first hinge portion 23 for connecting to the first hinge shaft 7. The first hinge portion 23 has a hinge hole inside. The first hinge shaft 7 passes through the hinge hole and is restrained therein, so that the first hinge shaft 7 can only rotate about the hinge hole and cannot move axially. For example, a stopper is provided at the end of the first hinge shaft 7 away from the second support member 3. This stopper can be, for example, a nut.

[0103] The sliding connection portion 32 of the second support member 3 is connected to its support body portion 31, and the sliding connection portion 32 and the first hinge axis 7 are respectively located on opposite sides of the support body portion 31. It can be considered that the sliding connection portion 32 is located on the inner side of the support body portion 31, and the first hinge axis 7 is located on the outer side of the support body portion 31. In some examples, the outer side of the support body portion 31 of the second support member 3 is made flush with the outer side of the first support member 2.

[0104] The hinge is realized by means of a hinge shaft, which has the advantages of simple and effective structure, low difficulty in production and assembly, detachability, and easy maintenance.

[0105] In some possible implementations, such as the attached Figure 2 As shown, the sliding connection portion 32 has a first guide groove 33 , which extends in a direction perpendicular to the axial direction of the first hinge shaft 7 . The sliding connection portion 32 is slidingly connected to the second connection section 43 via the first guide groove 33 .

[0106] The first guide groove 33 can be a straight groove. The first guide groove 33 extends along a direction perpendicular to the axial direction of the first hinge shaft 7. It can also be understood that it extends along the expansion direction of the second support member 3. That is, the length direction of the first guide groove 33 extends along the spreading direction from the inside to the outside of the second support member 3.

[0107] The length of the first guide groove 33 is determined according to the rotation range of the second support member 3. In the embodiment of the present disclosure, the length of the first guide groove 33 must meet the following two conditions:

[0108] (1) When the hinge mechanism is in the unfolded state, the second connecting section 43 of the swing arm 4 can slide to the first limit position inside the first guide groove 33. At this first limit position, the bearing surfaces of the second support member 3 and the first support member 2 are in the same plane. The second connecting section 43 of the swing arm 4 supports the second support member 3 at this first limit position so that its bearing surface is in the unfolded state in the same plane as the bearing surface of the first support member 2. Specifically, the second connecting section 43 of the swing arm 4 pushes the first wall of the first guide groove 33 in a direction perpendicular to the plate surface of the second support member 3, thereby achieving the purpose of supporting the second support member 3. Among them, the first wall of the first guide groove 33 is a wall for supporting the screen of the folding terminal.

[0109] (2) When the hinge mechanism is in the folded state, the second connecting section 43 of the swing arm 4 can slide to the second extreme position in the first guide groove 33. At this second extreme position, the second support member 3 and the first support member 2 have different inclinations. The second connecting section 43 of the swing arm 4 supports the second support member 3 in the desired inclination at this second extreme position. Specifically, the second connecting section 43 of the swing arm 4 pushes the second wall of the first guide groove 33 in a direction perpendicular to the plate surface of the second support member 3, thereby achieving the purpose of supporting the inclined second support member 3. The second wall of the first guide groove 33 is the wall opposite to the first wall of the first guide groove 33.

[0110] In some possible implementations, such as the attached Figure 3 As shown, the two supporting body parts 31 corresponding to the two folding components are each provided with an avoidance groove 34 , wherein the avoidance groove 34 of one folding component is used to accommodate the sliding connection part 32 of the other folding component.

[0111] For example, if the hinge mechanism folds along the left and right directions, one of the two folding components is located on the left and the other is located on the right. Figure 3 An avoidance groove 34 is provided on the inner side of the support body part 31 of the second support member 3 located on the left side. The avoidance groove 34 has two opposite ends, one of which is close to the base frame 1 and serves as a sliding connection part 32, and the other end away from the base frame 1 and serves as a component of the support body part 31.

[0112] An avoidance groove 34 is also provided on the inner side of the supporting body portion 31 of the second support member 3 located on the right side. The avoidance groove 34 is provided at one end of the inner side of the supporting body portion 31 close to the base frame 1. The end of the avoidance groove 34 close to the base frame 1 is open, and a sliding connection portion 32 is provided at the other end opposite to the open end.

[0113] When the hinge mechanism is in the extended state, the avoidance groove 34 on the right second support member 3 can accommodate the sliding connection portion 32 of the left second support member 3, and can further accommodate the main section 41 and second connection section 43 of the left swing link 4; the avoidance groove 34 on the left second support member 3 can accommodate the sliding connection portion 32 of the right second support member 3. It can be seen that the above-mentioned design of the avoidance groove 34 can ensure that the two second support members 3 do not interfere with each other when the hinge mechanism is in the extended state.

[0114] In some possible implementations, the hinge mechanism provided by the embodiment of the present disclosure, such as the attached Figure 1 As shown, the folding assembly includes, in addition to the first support member 2 , the second support member 3 and the rocker 4 , a connecting member 5 and a third support member 6 .

[0115] The connecting member 5 is hinged to the first support member 2, and the connecting member 5 and the first support member 2 are arranged side by side; one end of the third support member 6 is hinged to the base frame 1, and the other end of the third support member 6 is slidingly connected to the connecting member 5, and the third support member 6 is located on the side of the bearing surface away from the first support member 2.

[0116] As mentioned above, the first support member 2 includes: a first end portion 2a and a second end portion 2b. Figure 1 As shown, the first support member 2 further includes a third end portion 2c, and the second end portion of the first support member 2 is located between the first end portion and the third end portion thereof.

[0117] The first end 2a of the first support member 2 is hinged to one side of the base frame 1, the third end 2c of the first support member 2 is hinged to the connecting member 5, and the second end 2b of the first support member 2 is hinged to the first end of the second support member 3. For example, the side of the second end 2b of the first support member 2 connected to the third end 2c is hinged to the second support member 3.

[0118] The base frame 1, first support member 2, and connector 5 are arranged from inside to outside (where the side where the base frame 1 is located is called the inside, and the side where the connector 5 is located is called the outside). For example, the first support member 2 and the second support member 3 can both adopt a plate-like structure to adapt to the lightweight and thin foldable terminal.

[0119] The connecting member 5 is located at the outermost side of the hinge mechanism, which is convenient for connecting with the shell of the folding terminal (when used, the connecting members 5 of the two folding components are respectively connected to the two shells of the folding terminal); the base frame 1 is located at the innermost side of the hinge mechanism, that is, the center position, which can not only be used for support, but also as a rotation center.

[0120] The first support member 2 is hingedly connected to both the base frame 1 and the connecting member 5, so that when the first support member 2 rotates relative to the base frame 1, the connecting member 5 can also rotate relative to the rotating first support member 2. Furthermore, the connecting member 5 is slidably connected to a third support member 6 hinged to the base frame 1, providing support via the third support member 6. As can be seen, the third support member 6 can rotate relative to the base frame 1, and the rotating third support member 6 can also support the connecting member 5, thereby providing indirect support to the first support member 2.

[0121] One end of the third support member 6 is hinged to the base frame 1, wherein the base frame 1, for example, the side connecting section of the base frame 1, has a hinge portion, and the third support member 6 has a hinge end. The hinge end of the third support member 6 and the hinge portion of the base frame 1 can be hinged via a hinge axis, so that the hinge end of the third support member 6 can rotate around the hinge portion of the base frame 1. In order to improve the structural stability of the hinge mechanism in the deployed state, the hinge portion of the base frame 1 has a limiting structure. The limiting structure is configured to prevent the third support member 6 from further rotating when the third support member 6 rotates to the hinge mechanism in the deployed state, so that the third support member 6 can only rotate to the position that puts the hinge mechanism in the deployed state.

[0122] Because the third support member 6 directly supports the connector 5, the connector 5 can rotate at a different angle than the first support member 2. For example, when the hinge mechanism is in the unfolded state, the bearing surfaces of the first support member 2 and the connector 5 are in the same plane, accommodating the flattened form of the foldable terminal in the unfolded state. When the hinge mechanism transitions from the unfolded state to the folded state, the first support member 2 and the connector 5 rotate simultaneously. However, when rotating to the folded state, the support provided by the third support member 6 on the connector 5 allows the connector 5 to rotate at a different angle than the first support member 2. At this point, the two maintain a certain angle to accommodate the foldable terminal's folded form.

[0123] The connector 5 can be connected to the shell of the folding terminal so that the connector is compatible with the shell of the folding terminal. In the folded state, the two connectors 5 corresponding to the two folding components must be designed to be parallel and opposite to each other. Since the first support member 2 and the connector 5 are in a hinged relationship, although the first support member 2 is tilted relative to the connector 5 in the folded state, it is limited by the parallel arrangement of the two connectors 5. The tilt angle of the first support member 2 is limited, and there is a relatively large wedge-shaped space between the two first support members 2, which makes it difficult to fully fit the folding form of the flexible screen of the folding terminal. However, the embodiment of the present application effectively overcomes this problem through the design of the second support member 3, so that the hinge mechanism provided in the embodiment of the present application is not only adapted to the folding form of the shell of the folding terminal, but also adapted to the folding form of its flexible screen, which is conducive to improving the user experience.

[0124] In the embodiment of the present disclosure, the first end portion 2a of the first support member 2 is hinged to one side of the base frame 1. In some possible implementations, one end of the first support member 2, that is, the first end portion 2a, is provided with a first guide portion, and the base frame 1 is provided with a second guide portion. One of the first guide portion and the second guide portion is an arc-shaped guide rail 81, for example, an arc-shaped, and the other is an arc-shaped guide groove 82 adapted to the arc-shaped guide rail 81; the first support member 2 is hinged to the base frame 1 through the first guide portion and the second guide portion.

[0125] In some possible examples, an arc-shaped guide groove is provided at the first end portion 2a of the first support member 2, and an arc-shaped guide rail is provided at the side of the base frame 1, that is, the corresponding side connecting section of the base frame 1, and the central axis of the circle where the arc-shaped guide rail is located coincides with the central axis of the circle where the arc-shaped guide groove is located.

[0126] For example, an assembly cavity 15 can be provided in the side connecting section of the base frame 1, with an arcuate guide rail 81 disposed at opposite ends of the assembly cavity 15. Accordingly, a first guide portion 22 is provided on the first side of the first support member 2, with arcuate guide grooves 82 disposed on opposite sides of the first guide portion 22. During use, the first guide portion 22 is installed in the assembly cavity 15, such that the arcuate guide rail 81 on the same side fits into the arcuate guide groove 82. The arcuate guide groove 82 can slide along the arcuate guide rail 81, thereby enabling the first support member 2 to rotate relative to the base frame 1.

[0127] The hinged structure obtained by the cooperation of the arc-shaped guide rail 81 and the arc-shaped guide groove 82 has the advantages of simple and compact structure, strong stability, and reliable cooperation. This hinged structure can not only enable the first support member 2 to rotate stably and controllably around the base frame 1, but also support the first support member 2 in the unfolded state, thereby improving the structural stability of the hinge mechanism.

[0128] In some possible implementations, at least one hinge portion is provided at the other end of the first support member 2, and the axial direction of the at least one hinge portion is parallel to the tangent direction of the bearing surface of the first support member 2; the second support member 3 and the connecting member 5 are hinged to the first support member 2 through different hinge portions.

[0129] At least one hinged portion is spaced apart at the third end 2c of the first support member 2, wherein the hinged portion hinged to the second support member 3 is also located at the second end 2b of the first support member 2, that is, the end face of the hinged portion hinged to the second support member 3 is actually the end face of the second end 2b of the first support member 2.

[0130] For example, as shown in the attached Figure 4 As shown, the first support member 2 includes a support body 21, a first guide portion 22, a first hinge portion 23, a second hinge portion 24, and a third hinge portion 25. The first guide portion 22 is located at the first end 2a of the support body 21. As described above, the first guide portion 22 is configured to articulate with one side of the base frame 1. The first hinge portion 23, the second hinge portion 24, and the third hinge portion 25 are all located at the third end 2c of the support body 21. These three hinge portions are spaced apart in sequence, with their central axes coinciding. A mounting slot 26 is provided between adjacent hinge portions to facilitate assembly of the hinge shafts.

[0131] As described above, the first hinge portion 23 is located at the connection between the second end 2b and the third end 2c of the first support member 2, so that the first hinge portion 23 is equivalent to being located at the second end 2b of the first support member 2, that is, the end face of the first hinge portion 23 is actually the end face of the second end 2b of the first support member 2.

[0132] The second hinge part 24 is located between the first hinge part 23 and the third hinge part 25. The third hinge part 25 is located at the second end of the second side of the first support member 2. The second hinge part 24 and the third hinge part 25 are used to accommodate the second hinge shaft 9, and the second hinge shaft 9 is used to hinge with the connecting member 5.

[0133] The second hinge shaft 9 is hinged to the connecting member 5, and the first support member 2 and the connecting member 5 are hinged by means of a hinge shaft. This not only has the advantages of simple and compact structure, but also enables the first support member 2 and the connecting member 5 to rotate relatively independently, which is conducive to forming a certain angle between the two in the folded state to adapt to the shape of the folding terminal in the folded state.

[0134] In order to increase the supporting area of ​​the first support member 2 , more supporting plates may be added to the second end of the first side portion of the first support member 2 as long as the rotation of the first support member 2 relative to the base frame 1 is not affected.

[0135] In the embodiment of the present disclosure, the connecting member 5 is not only hinged to the first support member 2, but also slidably connected to the base frame 1 through the third support member 6. In some possible implementations, such as the attached Figure 5 As shown, the connecting member 5 includes: a first plate segment 51 and a second plate segment 52 arranged in a stacked manner; wherein the first plate segment 51 is hinged to the second side of the first support member 2, and the first plate segment 51 is also used to connect to the shell of the folding terminal; the second plate segment 52 is slidably connected to the third support member 6.

[0136] With the screen of the folding terminal as the top and the bottom cover as the bottom, it can be considered that the first plate segment 51 is located at the top and the second plate segment 52 is located at the bottom. The first plate segment 51 located at the top can be connected to the shell of the folding terminal, for example, by screws.

[0137] In some examples, the first plate segment 51 and the second plate segment 52 can both be plate-shaped structures, and the side of the first plate segment 51 of the connecting member 5 opposite to the first support member 2 is also correspondingly provided with a hinge portion, which is located in the installation groove 26 between the above-mentioned second hinge portion 24 and the third hinge portion 25, and the second hinge shaft 9 is used to simultaneously pass through these three hinge portions to realize the hinge connection between the first plate segment 51 and the second side portion of the first support member 2.

[0138] In some possible implementations, such as the attached Figure 5As shown, the second plate segment 52 has a second guide groove 53, and the second guide groove 53 extends in a tangential direction perpendicular to the bearing surface of the first support member 2. It can also be understood that the second guide groove 53 extends in the axial direction of the second hinge shaft 9; the second plate segment 52 is slidingly connected to the third support member 6 through the second guide groove 53.

[0139] The second guide groove 53 can be a straight groove, and the second guide groove 53 extends in a direction perpendicular to the axial direction of the second hinge shaft 9. It can also be considered that the length direction of the second guide groove 53 extends along the spreading direction from the first end 2a of the first support member 2 to its second end 2c.

[0140] Regarding the specific implementation method of the third support member 6 being slidably connected to the second plate segment 52 through the second guide groove 53, one end of the third support member 6 can be hinged to the base frame 1, and the other end of the third support member 6 and at least part of the main body of the third support member 6 extend into the second guide groove 53. In this way, the third support member 6 can move linearly along the second guide groove 53 without affecting the rotation of the connecting member 5 around the first support member 2.

[0141] The length of the second guide groove 53 is determined according to the rotation range of the connecting member 5. In the embodiment of the present disclosure, the length of the second guide groove 53 must meet the following two conditions:

[0142] (1) When the hinge mechanism is in the expanded state, the third support member 6 slides to the first extreme position in the second guide groove 53. At this first extreme position, the connecting member 5 and the bearing surface of the first support member 2 are in the same plane. The third support member 6 supports the connecting member 5 at this first extreme position so that it is in the expanded state in the same plane as the bearing surface of the first support member 2.

[0143] (2) When the hinge mechanism is in a folded state, the third support member 6 can slide to the first extreme position in the second guide groove 53. At this second extreme position, the connecting member 5 and the first support member 2 are no longer level, and the two have different inclinations. The third support member 6 supports the two connecting members 5 at this second extreme position so that they are in the expected parallel relative state.

[0144] In some possible implementations, such as the attached Figure 6 and attached Figure 7 As shown, the hinge mechanism provided in the embodiment of the present disclosure further includes: a linkage member 10, as shown in the attached Figure 4 Combined with attachment Figure 7 As shown, the base frame 1 has a accommodating cavity 100, which includes: a middle cavity section 1001, two side cavity sections 1002 located on both sides of the middle cavity section 1001, and the linkage member 10 is located in the middle cavity section 1001 and the base frame 1 is hinged.

[0145] A linkage portion 61 is provided at one end of the third support member 6, which is located in the side cavity section 1002 and is hinged to the base frame 1; the linkage portion 61 is adapted to the linkage member 10, and the linkage member 10 and the linkage portion 61 are configured to link the two folding components to perform folding and unfolding movements synchronously.

[0146] The linkage portion 61 is one end of the third support member 6 hinged to the base frame 1 . By setting this end as the linkage portion 61 , it not only has a hinge function but also a linkage function.

[0147] Through the design of the linkage member 10 and the linkage portion 61, the two folding components can move synchronously, thereby driving the screen of the folding terminal to fold or unfold at the same time, improving the convenience of using the folding terminal and improving the user experience.

[0148] For example, the linkage member 10 and the linkage portion 61 are linked by a gear transmission. That is, both the linkage member 10 and the linkage portion 61 are provided with teeth, and the teeth mesh with each other to achieve linkage between the two folding components. Furthermore, the use of a gear transmission for linkage provides a self-locking function, allowing the folding components to stop and stably maintain any position after being driven by an external force to rotate to that position. For example, the specific position can be a position in an unfolded state or a position in a folded state.

[0149] For example, the linkage member 10 is a gear pair, including two meshing gears 101 , each of which corresponds to a linkage portion 61 of a folding assembly. The gears 101 are located on the first connecting section 42 of the rocker 4 .

[0150] The linkage portion 61 is also configured as a gear, and the gear-shaped linkage portion 61 meshes with the corresponding gear 101, and at the same time, the two gears 101 of the linkage member 10 mesh with each other. The central axis of each of the above-mentioned gears is consistent with the central axis of the intersection shaft involved in the folding assembly.

[0151] When the hinge mechanism changes state, for example, from the unfolded state to the folded state, the third support member 6 of one of the folding components (referred to as the first folding component) rotates around the base frame 1, causing the linkage portion 61 of the third support member 6 to rotate, thereby driving the gear 101 in the first folding component to rotate, and then driving the gear 101 in the other folding component (referred to as the second folding component) to rotate, and then driving the linkage portion 61 of the third support member 6 in the second folding component to rotate. In this way, the first folding component and the second folding component can perform synchronous folding movements.

[0152] For example, the accommodating cavity 100 is formed on the end connecting section 14 of the base frame 1, the middle cavity section 1001 is located on one side of the middle connecting section 11, and the two side cavity sections 1002 are located on one side of the first side connecting section 12 and the second side connecting section 13, respectively. The linkage portion 61 and the linkage member 10 are assembled and rotated in their respective cavities. To improve the assembly stability of the above-mentioned components, the ends of the linkage portion 61 and the linkage member 10 can be respectively abutted against two opposing inner walls of the accommodating cavity 100, one of which is provided by the middle connecting section 11 of the base frame 1, and the other is provided by the end connecting section 14 of the base frame 1.

[0153] As attached Figure 7 As shown, the gear 101 is a full gear, that is, it has teeth in the entire circumferential direction. The gear 101 is fixedly mounted on the first connecting section 42 of the rocker arm 4, that is, it is fixedly mounted on the part of the first connecting section 42 of the rocker arm 4 that passes through the end connecting section 14 of the base frame 1.

[0154] As attached Figure 7 As shown, the linkage part 61 may not be a full gear, that is, only a portion of the gear is provided with teeth in the entire circumferential direction, and the remaining portion without teeth can be used to connect with the end of the third support member 6. For example, the linkage part 61 can be a half gear.

[0155] In some examples, such as the attached Figure 7 As shown, the linkage portion 61 of the third support member 6 is configured to be sleeve-shaped to accommodate the third hinge shaft 111. The third hinge shaft 111 passes through the end connection section 14 of the base frame 1 and the through hole on the corresponding side connection section and is limited therein to realize the hinge connection between the linkage portion 61 of the third support member 6 and the base frame 1.

[0156] On the premise that the third support member 6 is designed to have the above structure, on the one hand, the third support member 6 and the linkage part 61 are designed to be integrally formed, and teeth can be directly provided on the outer wall of the linkage part 61 of the third support member 6. This method has the advantages of simple structure and easy preparation; on the other hand, an independent linkage part 61 with teeth can also be assembled at the end of the third support member 6.

[0157] In some examples, such as the Figure 6 As shown, the third support member 6 includes: a linkage portion 61, a reinforcement portion 62 and a main body portion 63 connected in sequence. The structure of the linkage portion 61 is as described above, and the reinforcement portion 62 can be an arc-shaped block, a triangular block or other reinforcement structure, for example, see Figure 6 The reinforcement portion 62 is arranged in an arc shape on the surface facing away from the first support member 2; the main body portion 63 can be rod-shaped, for example, a rectangular long rod-shaped structure. The third support member 6 of the above structure has the advantages of simple structure and strong fatigue resistance life.

[0158] The hinge mechanism provided by the embodiment of the present disclosure has a simple and reliable overall structure, uses fewer parts, is easy to produce and assemble, has low cost, is detachable, and is easy to maintain later.

[0159] All the above optional technical solutions can be arbitrarily combined to form optional embodiments of the present disclosure, and will not be described in detail here.

[0160] On the other hand, an embodiment of the present disclosure further provides a foldable terminal, which includes the hinge mechanism described above.

[0161] In addition to the hinge mechanism described above, the folding terminal provided in the disclosed embodiments also includes at least: a flexible screen, a bottom cover, two housings, and a hinge mechanism. The two housings are symmetrically arranged and connected by a hinge mechanism. The flexible screen is located inside the first and second housings and can fold or unfold accordingly with the folding or unfolding of the hinge mechanism. The bottom cover is located at the junction of the first and second housings. Under the action of the hinge mechanism, the two housings can be folded or unfolded, and when the two housings are folded, the bottom cover is used to cover the gap between them.

[0162] For example, the folding terminal is folded in the left and right directions, with one of the two folding components located on the left and the other on the right. When in use, the connector of the folding component located on the left is installed on the shell on the left side of the folding terminal, and the connector of the folding component located on the right is installed on the shell on the right side of the folding terminal, and the base is installed on the bottom cover of the folding terminal.

[0163] The folding terminal provided in the embodiment of the present disclosure uses the above-mentioned hinge mechanism provided in the embodiment of the present disclosure, so that the connecting parts of the two folding components are respectively connected to the first shell and the second shell of the folding terminal, and the base is connected to the bottom cover of the folding terminal.

[0164] When the hinge mechanism is in the unfolded state, the bearing surfaces of the second support member and the first support member are in the same plane to jointly support the foldable terminal's screen, facilitating the flat unfolding of the foldable terminal's screen. When the hinge mechanism transitions from the unfolded state to the folded state, the angle between the two second support members becomes smaller than the angle between the two first support members, and the wedge-shaped gap between the two second support members becomes further smaller than the wedge-shaped gap between the two first support members. This allows the two second support members to better conform to the shape of the foldable terminal's screen in the folded state. At least using the second support members to support the foldable terminal's screen allows the foldable terminal's screen to fit tightly. This arrangement not only improves the user experience but also protects the foldable terminal's screen.

[0165] In addition, the foldable terminal provided in the embodiment of the present disclosure has no gaps in the entire device when folded, effectively utilizing space, and has a small thickness, which can achieve a lightweight and thin device, providing users with a better user experience.

[0166] For example, the foldable terminal provided by the embodiments of the present disclosure includes but is not limited to the following: a foldable mobile phone, a foldable tablet computer, or a foldable e-reader.

[0167] In the embodiments of the present disclosure, all directional indications (such as up, down, left, right, etc.) are only used to explain the relative position relationship, movement, etc. between the components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0168] In the embodiments of the present disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance. The term "plurality" refers to two or more, unless otherwise clearly defined.

[0169] Other embodiments of the present disclosure will readily occur to those skilled in the art after considering the specification and practicing the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art not disclosed herein. The description and examples are to be considered as exemplary only, with the true scope and spirit of the present disclosure being indicated by the following claims.

[0170] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A hinge mechanism, characterized in that: The hinge mechanism comprises at least: a base frame (1), two folding assemblies arranged opposite to each other, and a rocker (4); Wherein, the folding assembly comprises at least: a first support member (2) and a second support member (3); One end of the first support member (2) and one end of the second support member (3) are both movably connected to the base frame (1), and the first support member (2) and the second support member (3) of the same folding assembly are arranged side by side; one end of the second support member (3) is hinged to the other end of the first support member (2); One end of the swing rod (4) is hinged to the base frame (1), and the other end of the swing rod (4) is slidably connected to the second support member (3); one end of the first support member (2) is hinged to the base frame (1); When the hinge mechanism is in a folded state, the angle between the two second support members (3) arranged opposite to each other is smaller than or equal to the angle between the two first support members (2) arranged opposite to each other, and the second support members (3) support the screen of the folding terminal; When the hinge mechanism is in an unfolded state, the first support member (2) and the second support member (3) jointly support the screen of the folding terminal.

2. The hinge mechanism according to claim 1, wherein: The bearing area of ​​the second support member (3) is greater than the bearing area of ​​the first support member (2).

3. The hinge mechanism according to claim 1 or 2, characterized in that: The folding assembly further comprises: a connecting member (5) and a third supporting member (6); The connecting member (5) is hinged to the first supporting member (2), and the connecting member (5) and the first supporting member (2) are arranged side by side; One end of the third support member (6) is hinged to the base frame (1), the other end of the third support member (6) is slidably connected to the connecting member (5), and the third support member (6) is located on a side away from the bearing surface of the first support member (2).

4. The hinge mechanism according to claim 2, wherein: The second support member (3) comprises: a support body portion (31), and a sliding connection portion (32) connected to the support body portion (31); One end of the support body portion (31) is hinged to the first support member (2) via a first hinge shaft (7), and the first hinge shaft (7) and the sliding connection portion (32) are respectively located on two opposite sides of the support body portion (31); The sliding connection portion (32) is slidably connected to the rocker (4).

5. The hinge mechanism according to claim 4, characterized in that: The sliding connection portion (32) has a first guide groove (33), and the first guide groove (33) extends in an axial direction perpendicular to the first hinge axis (7); The sliding connection portion (32) is slidingly connected to the rocker rod (4) via the first guide groove (33).

6. The hinge mechanism according to claim 4 or 5, characterized in that: The two supporting body parts (31) corresponding to the two folding components are each provided with an avoidance groove (34), and the avoidance groove (34) of one of the folding components is used to accommodate the sliding connection part (32) of the other folding component.

7. The hinge mechanism according to claim 1, wherein: A first guide portion is provided at one end of the first support member (2), and a second guide portion is provided on the base frame (1); one of the first guide portion and the second guide portion is an arc-shaped guide rail (81), and the other is an arc-shaped guide groove (82) adapted to the arc-shaped guide rail (81); the first support member (2) is hinged to the base frame (1) via the first guide portion and the second guide portion.

8. The hinge mechanism according to claim 3, wherein: The other end of the first support member (2) is provided with at least one hinged portion, and the axial direction of the at least one hinged portion is parallel to the tangent direction of the bearing surface of the first support member (2); the second support member (3) and the connecting member (5) are hinged to the first support member (2) via different hinged portions.

9. The hinge mechanism according to claim 3, wherein: The connecting member (5) comprises: a first plate segment (51) and a second plate segment (52) which are stacked; The first plate segment (51) is hinged to the first support member (2), and the first plate segment (51) is also used to connect to the housing of the folding terminal; The second plate section (52) is slidably connected to the third support member (6).

10. The hinge mechanism according to claim 9, characterized in that: The second plate segment (52) has a second guide groove (53), and the second guide groove (53) extends in a direction perpendicular to the tangent direction of the bearing surface of the first support member (2); The second plate segment (52) is slidably connected to the third support member (6) via the second guide groove (53).

11. The hinge mechanism according to claim 3, wherein: The hinge mechanism further comprises: a linkage member (10); the base frame (1) has a receiving cavity (100); the receiving cavity (100) comprises: a middle cavity section (1001), and two side cavity sections (1002) located on both sides of the middle cavity section (1001); the linkage member (10) is located in the middle cavity section (1001) and the base frame (1) is hinged; One end of the third support member (6) is provided with a linkage portion (61), and the linkage portion (61) is located in the side cavity section (1002) and is hinged to the base frame (1); The linkage portion (61) is adapted to the linkage member (10), and the linkage member (10) and the linkage portion (61) are configured to enable the two folding components to be linked to each other so as to perform folding and unfolding movements synchronously.

12. The hinge mechanism according to claim 11, wherein: The linkage member (10) and the linkage portion (61) are linked by a gear transmission method.

13. A foldable terminal, characterized in that: The folding terminal includes the hinge mechanism according to any one of claims 1 to 12.

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