A mobile terminal dual-axis hinge with a lifting switching function

Abstract

The utility model provides a kind of mobile terminal double-shaft hinge with lifting switching function, its second shaft is liftable shaft, and first rotary connecting structure, second rotary limiting structure and third rotary limiting structure are arranged, and the switching mechanism of second rotary limiting structure and third rotary limiting structure, the switching mechanism is provided with button and reset elastic piece.The utility model can make notebook computer switch in ordinary notebook computer use mode and the mode when using external keyboard or external screen.

Description

Technical Field

[0001] This utility model relates to a dual-axis hinge for use in a mobile terminal, including a laptop computer. Background Technology

[0002] Laptops consist of a main unit and a screen, connected by a hinge. Many users find the built-in keyboard uncomfortable or the screen insufficient, leading many to opt for an external keyboard or monitor. Generally, the external keyboard or monitor is stored separately from the laptop when not in use. Some laptops allow the external keyboard or monitor to be placed between the main unit and the screen when folded. However, eliminating the cavity for the external keyboard or monitor when not folded presents a challenge. Utility Model Content

[0003] The purpose of this invention is to provide a dual-axis hinge for mobile terminals with a lift-and-switch function, enabling laptops using this invention to switch between a normal laptop usage mode and a mode for using an external keyboard or external screen. To this end, this invention adopts the following technical solution: A dual-axis hinge for a mobile terminal with a lifting switching function includes a parallel first axis and a second axis. The second axis is a liftable axis. The dual-axis hinge is provided with a first rotational connection structure, a second rotational limiting structure, and a third rotational limiting structure, as well as a switching mechanism between the second and third rotational limiting structures. The switching mechanism is provided with a button and a reset elastic element. When the button is released, the switching mechanism resets and switches to the third rotational limiting mechanism. Through the cooperation of the third rotational limiting mechanism and the first rotational connection structure, the second axis rotates between the first and second states. When the button is pressed, the switching mechanism switches to activate the second rotational limiting mechanism, causing the second axis to rotate between the first state and the transition angle, and to revolve around the first axis as the rotation center between the transition angle and the second state, thus lifting the second axis. The first state corresponds to the mobile terminal being in the open limit state, and the second state corresponds to the mobile terminal being in the folded state; the conversion angle is the angle between the flattened state and the folded state that is close to the folded state.

[0004] Based on the above technical solution, the present invention may also adopt the following further technical solutions, or combine these further technical solutions: The second and third rotation limiting structures are arranged along the axial direction of the dual-axis hinge. The first rotation connection structure, the second rotation limiting structure, and the third rotation limiting structure are respectively provided with a first mating member fixed on the first axis and a second mating member fixed on the second axis. The switching mechanism includes a switching member and an axial pushing structure. The switching member is located between the first and second axes. The axial pushing structure receives the button drive and pushes the switching member to switch between the first and second mating members of the second rotation limiting structure. After the pressure input by the button is removed, the reset elastic member drives the switching member to switch between the first and second mating members of the third rotation limiting structure and drives the axial pushing structure to retract.

[0005] The dual-axis hinge is provided with a fixed base, the first axis is fixed on the fixed base and cannot rotate relative to the fixed base, and the axial motion guide structure of the switching mechanism is provided on the fixed base.

[0006] The switching mechanism includes a switching element, an axial pushing structure, and an axial guiding structure. The axial pushing structure includes a first axial sliding element and a second axial sliding element. The first axial sliding element cooperates with a button to convert downward pressure into axial force. The second axial sliding element is located between the switching element and the first sliding element. The reset elastic component is connected to the switching element.

[0007] The dual-axis hinge is provided with a fixed base, the sliding guide structure of the first axial sliding member is provided on the fixed base, and the axial guide structure of the second axial sliding member and the switching member is provided on the rotating connecting frame. The rotating connecting frame is connected to the first shaft and the second shaft.

[0008] The first axial slider and the button are connected by a beveled joint. The fixed base is provided with an interface. The upper part of the interface is provided with a lifting guide structure for the button, and the lower part is provided with a guide structure for the first axial slider.

[0009] The dual-axis hinge is equipped with a rotating connecting frame, which is rotatably connected to both the first and second axes and positions the center distance between the second and first axes.

[0010] The first rotating connection structure includes a first mating component fixed on a first shaft, a second mating component fixed on a second shaft, and a movable control component located between the first and second mating components of the first rotating connection structure. The dual-axis hinge is provided with a rotating connection frame, and the movable control component is movably connected to the rotating connection frame. When the button is lifted, the movable control component engages with the first mating component of the first rotating connection structure, and the second mating component of the first rotating connection structure rotates together with the second shaft. When the button is pressed, between the first state and the conversion angle, the movable control component engages with the first mating component of the first rotating connection structure. After the conversion angle and between the second state, it engages with the second mating component of the first rotating connection structure and, together with the rotating connection frame, revolves around the first shaft.

[0011] The movable control component is a sliding component, and a sliding guide seat for the movable control component is provided on the rotating connecting frame. The sliding direction of the movable control component is perpendicular to the first axis and the second axis.

[0012] The first and second mating parts of the first rotary connection structure are both connected to the movable control part via connecting grooves that are adapted to the corresponding ends of the movable control part. After the end of the movable control part is inserted into the corresponding connecting groove, the movable control part is engaged with the first or second mating part. Within the rotational engagement range, outside the connecting groove, the first and second mating parts of the first rotary connection structure are cylindrical surfaces that mate with the corresponding ends.

[0013] The first mating component and the second mating component of the first rotating connection structure are provided with cylindrical bases, and the rotating connection frame is provided with a rotating support surface that mates with the cylindrical base of the first rotating connection structure.

[0014] The third rotation limiting structure includes a first mating part fixed on a first shaft and a second mating part fixed on a second shaft. The switching mechanism includes a switching part. The first mating part of the third rotation limiting structure is connected to one end of the switching part through a connecting groove. The second mating part of the third rotation limiting structure is provided with a limiting groove corresponding to the angle range from the second state to the first state, and is connected to the other end of the switching part through the limiting groove. The second rotation limiting structure includes a first mating part fixed on a first shaft and a second mating part fixed on a second shaft. The first mating part of the second rotation limiting structure is connected to one end of the switching part through a first limiting groove. The second mating part of the second rotation limiting structure is connected to the other end of the switching part through a second limiting groove. The second limiting groove corresponds to the angle range from the second state to the switching angle, and the first limiting groove corresponds to the angle range from the switching angle to the first state.

[0015] The first mating component of the third rotation limiting structure and the first mating component of the second rotation limiting structure are integrated and have a cylindrical base. The second mating component of the third rotation limiting structure and the second mating component of the second rotation limiting structure are integrated and have a cylindrical base. The rotating connecting frame is provided with a rotation support surface that mates with the cylindrical base of the third rotation limiting structure and the second rotation limiting structure.

[0016] The bottom of the limiting grooves in the second and third rotation limiting structures are arc surfaces.

[0017] The reset elastic element is disposed on the rotating connecting frame and can revolve together with the rotating connecting frame around the first axis.

[0018] All connecting grooves are circular arc grooves. Because of the technical solution of this invention, when no external keyboard or screen is attached, the laptop using this invention folds like a conventional laptop, without a cavity between the screen and the main unit for attaching an external keyboard or screen. When an external keyboard or screen is attached, it can switch to a carrying mode based on the pressure from the external keyboard or screen, or further, by using the pressure between the screen and the main unit to hold the external keyboard or screen, allowing it to be folded and stored together with the external keyboard or screen. This switching is automatic based on whether an external keyboard or screen is inserted, making it convenient to use. Furthermore, the external keyboard or screen can also be other accessories, such as a partition. Attached Figure Description

[0019] Figure 1 A schematic diagram of an embodiment provided by this utility model.

[0020] Figure 2-1 and Figure 2-2 These are schematic diagrams showing a laptop computer in a folded state, with and without an external keyboard or screen, respectively, according to embodiments of the present invention.

[0021] Figure 3 This is a top view of an embodiment provided by this utility model.

[0022] Figure 4 This is an exploded view of an embodiment provided by this utility model.

[0023] Figure 5-1 and Figure 5-2 The embodiments provided by this utility model are shown in a flattened state and a folded state when no external keyboard or external screen is attached. Figure 3 AA sectional view.

[0024] Figure 6-1 and Figure 6-2 The embodiments provided by this utility model are shown in a flattened state and a folded state when no external keyboard or external screen is attached. Figure 3 CC section view.

[0025] Figure 7 This is a cross-sectional view of the switching structure provided by the present invention without an external keyboard or external screen.

[0026] Figure 8-1 , Figure 8-2 and Figure 8-3 The embodiments provided by this utility model are in a flattened state, a rotating center switching state, and a folded state when carrying an external keyboard or external screen. Figure 3 AA sectional view.

[0027] Figure 9-1 , Figure 9-2 and Figure 9-3 The embodiments provided by this utility model are in a flattened state, a rotating center switching state, and a folded state when carrying an external keyboard or external screen. Figure 3 BB cross-sectional view.

[0028] Figure 10 This is a cross-sectional view of the switching structure when an external keyboard or external screen is attached, according to an embodiment of the present invention. Detailed Implementation

[0029] Referring to the accompanying drawings, this utility model provides a dual-axis hinge for a mobile terminal with a lifting switching function, comprising a parallel first axis 100 and a second axis 200. The second axis 200 is a liftable axis. The dual-axis hinge is provided with a first rotational connection structure, a second rotational limiting structure, and a third rotational limiting structure, as well as a switching mechanism between the second and third rotational limiting structures. The switching mechanism is provided with a button 4 and a reset elastic element 40. When the button 4 is lifted, the switching mechanism resets and switches to the third rotational limiting mechanism. Through the cooperation of the third rotational limiting mechanism and the first rotational connection structure, the second axis 200 rotates between the first and second states. When the button 4 is pressed, the switching mechanism switches to the second rotational limiting mechanism, causing the second axis 200 to rotate between the first state and the switching angle, and to revolve around the first axis as the rotation center between the switching angle and the second state, thus lifting the structure.

[0030] The first state corresponds to the mobile terminal being in its open limit state, which in this embodiment is the flattened state. The second state corresponds to the mobile terminal being in a folded state. The conversion angle is the angle between the flattened state and the folded state, close to the folded state. In this embodiment, the mobile terminal is a laptop computer as an example. Its first axis 100 is fixed to the host 301 by the fixing base 10, and the second axis 200 is fixedly connected to the laptop computer's own screen 302. The attached item is an external keyboard 303. When the angle is converted, the rotation of the second axis 200 in the closing rotation direction is a revolution, thereby lifting the second axis 200 to avoid the inserted external keyboard 303 (e.g., ...). Figure 2-2 As shown), when closed, the self-screen 302 is positioned relative to the host 301 as follows: Figure 2-2 The tilted state forms a space 304 for the keyboard. In this embodiment, the conversion angle is 24.5°.

[0031] The second and third rotation limiting structures are arranged along the axial direction of the dual-axis hinge. The first rotational connection structure is provided with a first mating member 11 fixed on the first shaft 100 and a second mating member 12 fixed on the second shaft 200. The second rotation limiting structure is provided with a first mating member 21 fixed on the first shaft 100 and a second mating member 22 fixed on the second shaft 200. The third rotation limiting structure is provided with a first mating member 31 fixed on the first shaft 100 and a second mating member 32 fixed on the second shaft 200. The switching mechanism includes a switching member 5 and an axial pushing structure. The switching member 5 is located between the first shaft 100 and the second shaft 200. The axial pushing structure is driven by the button 4 to push the switching member 5 to switch between the first mating member 21 and the second mating member 22 of the second rotation limiting structure. After the pressure input by the button 4 is removed, the reset elastic member 40 drives the switching member 5 to reset and switch to between the first mating member 31 and the second mating member 32 of the third rotation limiting structure, and drives the axial pushing structure to retract.

[0032] As mentioned above, the dual-axis hinge is provided with a fixed base 10, the first shaft 100 is fixed on the fixed base 10 and cannot rotate relative to the fixed base, and the axial motion guide structure of the switching mechanism is provided on the fixed base 10.

[0033] The switching mechanism further includes an axial guide structure. The axial pushing structure includes a first axial slider 41 and a second axial slider 42. The first axial slider 41 cooperates with the button 4 to convert the downward pressure into axial force. The second axial slider 42 is located between the switching member 5 and the first slider 41, used to extend the working distance, improve the force on the switching member 5, and reduce the overall manufacturing difficulty. The reset elastic component 40 is connected to the switching member 5. The sliding guide structure of the first axial slider 41 is provided on the fixed base 10, and the axial guide structure of the second axial slider 42 and the switching member 5 is provided on the rotating connecting frame 6. The rotating connecting frame 6 is connected to the first shaft 100 and the second shaft 200.

[0034] The axial guide structure of the second axial sliding member 42 and the switching member 5 is configured as a guide frame 64 integrated with a rotating connecting frame 6. The guide frame 64 is provided with a guide hole 65 for the second axial sliding member 42 and a guide groove 66 for the switching member 5.

[0035] In this embodiment, the first axial sliding member 41 and the button 4 are connected by a bevel joint 50. Alternatively, they can be connected by a connecting rod or cam. The fixed base 10 is provided with an interface 101. The upper part of the interface 101 is provided with a lifting guide structure 102 for the button 4, and the lower part is provided with a guide groove or guide hole 103 for the first axial sliding member 41. The structure is simple and can work together without interfering with each other.

[0036] As shown above, this utility model is provided with a rotating connecting frame 6. Multiple rotating connecting frames 6 can be provided along the axial direction. The rotating connecting frame 6 is rotatably connected to the first shaft 100 and the second shaft 200 and positions the center distance between the second shaft 200 and the first shaft 100.

[0037] The first rotating connection structure also includes a movable control member 13 located between the first mating member 11 and the second mating member 12. The movable control member 13 is movably connected to the rotating connection frame 6. When the key 4 is lifted (i.e., when the keyboard is not placed), the movable control member 13 engages with the first mating member 11 of the first rotating connection structure, and the second mating member 12 of the first rotating connection structure rotates together with the second axis 200. (At this time, the laptop's screen operates normally from folded to unfolded, and its state is also the same as that of a normal laptop when closed.) Figure 2-1 As shown), when button 4 is pressed (that is, when the keyboard 303 is placed and button 4 is pressed down), between the first state and the change angle, the active control member 13 engages with the first mating member 11 of the first rotating connection structure. After the change angle and between the second state, it engages with the second mating member 12 of the first rotating connection structure and together with the rotating connection frame 6, revolves around the first axis 100.

[0038] The movable control component 13 is a sliding component. A sliding guide seat 61 of the movable control component 13 is provided on the rotating connecting frame 6. The movable control component 13 is slidably connected to the guide seat 61 through the guide hole 130. The sliding direction is perpendicular to the first axis 100 and the second axis 200.

[0039] The first mating part 11 and the second mating part 12 of the first rotating connection structure are connected to the movable control part through connecting grooves 111 and 121 that are adapted to the corresponding ends of the movable control part. When the end 131 of the movable control part 13 falls into the connecting groove 111, the movable control part 13 and the first mating part 11 are considered as one unit. When the end 132 of the movable control part 13 falls into the connecting groove 121, the movable control part 13 and the second mating part 12 are considered as one unit. Within the rotational engagement range, outside the connecting grooves 111 and 121, the first mating part 11 and the second mating part 12 are cylindrical surfaces 112 and 122 that are rotatedly engaged with the corresponding ends 131 and 132.

[0040] The first mating part 11 and the second mating part 12 of the first rotating connection structure are provided with cylindrical bases 113 and 123. The rotating connection frame 6 is provided with a rotating support surface 62 that mates with the cylindrical bases 113 and 123 of the first rotating connection structure, thereby providing further rotating support and making the movement more stable by utilizing the foundation provided by the rotating connection frame 6.

[0041] The first mating part 31 of the third rotation limiting structure is connected to one end 51 of the switching part 5 through the connecting groove 311. When one end 51 of the switching part 5 falls into the connecting groove 311, they are considered as one unit. The second mating part 32 of the third rotation limiting structure is provided with a limiting groove 321 corresponding to the angle range from the second state to the first state. The limiting groove 321 is connected to the other end 52 of the switching part 5.

[0042] The first mating part 21 of the second rotation limiting structure is connected to one end 51 of the switching part 5 through the first limiting groove 211, and the second mating part 22 of the second rotation limiting structure is connected to the other end 52 of the switching part 5 through the second limiting groove 221. The second limiting groove 221 corresponds to the angle range from the second state to the conversion angle, and the first limiting groove 211 corresponds to the angle range from the conversion angle to the first state.

[0043] The first mating part 31 of the third rotation limiting structure and the first mating part 21 of the second rotation limiting structure are integrated and have a cylindrical base 310. The second mating part 32 of the third rotation limiting structure and the second mating part 33 of the second rotation limiting structure are integrated and have a cylindrical base 320. The rotation connecting frame 6 is provided with a rotation support surface 63 that mates with the cylindrical bases 310 and 320 of the third rotation limiting structure and the second rotation limiting structure, thereby providing further rotation support and making the movement more stable by utilizing the foundation provided by the rotation connecting frame 6.

[0044] The reset elastic element 40 is disposed on the rotating connecting frame 6 and can revolve together with the rotating connecting frame 6 around the first axis 200.

[0045] The bottom of the limiting grooves 211 and 221 of the second and third rotation limiting structures are arc surfaces. The connecting grooves 111, 121 and 311 are all arc grooves, which allow their corresponding ends to enter and disengage.

[0046] The above description is only a specific embodiment of the present utility model, but the structural features of the present utility model are not limited thereto. Any changes or modifications made by those skilled in the art within the scope of the present utility model are covered by the protection scope of the present utility model.

[0047] It should be noted that the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this utility model are intended to cover non-exclusive inclusion. The terms "installed," "set," "equipped with," "connected," "linked," and "sleeve" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] In the description of this utility model, it should be understood that the terms "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are also used only for the sake of brevity in description and do not indicate or imply relative importance.

Claims

1. A dual-axis hinge for a mobile terminal with a lifting switching function, comprising a parallel first axis and a second axis, characterized in that, The second axis is a liftable axis. The dual-axis hinge is provided with a first rotational connection structure, a second rotational limiting structure, and a third rotational limiting structure, as well as a switching mechanism between the second and third rotational limiting structures. The switching mechanism is provided with a button and a reset elastic element. When the button is released, the switching mechanism resets and switches to the third rotational limiting mechanism. Through the cooperation of the third rotational limiting mechanism and the first rotational connection structure, the second axis rotates between the first and second states. When the button is pressed, the switching mechanism switches to the second rotational limiting mechanism, so that the second axis rotates between the first state and the conversion angle, and revolves around the first axis as the rotation center between the conversion angle and the second state, thus lifting the axis. The first state corresponds to the mobile terminal being in the open limit state, and the second state corresponds to the mobile terminal being in the folded state; the conversion angle is the angle between the flattened state and the folded state that is close to the folded state.

2. The dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 1, characterized in that, The second and third rotation limiting structures are arranged along the axial direction of the dual-axis hinge. The first rotation connection structure, the second rotation limiting structure, and the third rotation limiting structure are respectively provided with a first mating member fixed on the first axis and a second mating member fixed on the second axis. The switching mechanism includes a switching member and an axial pushing structure. The switching member is located between the first and second axes. The axial pushing structure receives the button drive and pushes the switching member to switch between the first and second mating members of the second rotation limiting structure. After the pressure input by the button is removed, the reset elastic member drives the switching member to switch between the first and second mating members of the third rotation limiting structure and drives the axial pushing structure to retract.

3. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 1, characterized in that, The dual-axis hinge is provided with a fixed base, the first axis is fixed on the fixed base and cannot rotate relative to the fixed base, and the axial motion guide structure of the switching mechanism is provided on the fixed base.

4. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 1, characterized in that, The switching mechanism includes a switching component, an axial pushing structure, and an axial guiding structure. The axial pushing structure includes a first axial sliding component and a second axial sliding component. The first axial sliding component cooperates with a button to convert downward pressure into axial force. The second axial sliding component is located between the switching component and the first sliding component. A reset elastic component is connected to the switching component.

5. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 4, characterized in that, The dual-axis hinge is provided with a fixed base, the sliding guide structure of the first axial sliding member is provided on the fixed base, and the axial guide structure of the second axial sliding member and the switching member is provided on the rotating connecting frame. The rotating connecting frame is connected to the first shaft and the second shaft.

6. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 4, characterized in that, The first axial slider and the button are connected by a bevel joint. An interface is provided on the fixed base. The upper part of the interface is provided with a lifting guide structure for the button, and the lower part is provided with a guide structure for the first axial slider.

7. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 1, characterized in that, The dual-axis hinge is equipped with a rotating connecting frame, which is rotatably connected to both the first and second axes and positions the center distance between the second and first axes.

8. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 1, characterized in that, The first rotating connection structure includes a first mating component fixed on a first shaft, a second mating component fixed on a second shaft, and a movable control component located between the first and second mating components of the first rotating connection structure. The dual-axis hinge is provided with a rotating connection frame, and the movable control component is movably connected to the rotating connection frame. When the button is lifted, the movable control component engages with the first mating component of the first rotating connection structure, and the second mating component of the first rotating connection structure rotates together with the second shaft. When the button is pressed, between the first state and the conversion angle, the movable control component engages with the first mating component of the first rotating connection structure. After the conversion angle and between the second state, it engages with the second mating component of the first rotating connection structure and, together with the rotating connection frame, revolves around the first shaft.

9. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 8, characterized in that, The movable control component is a sliding component, and a sliding guide seat for the movable control component is provided on the rotating connecting frame. The sliding direction of the movable control component is perpendicular to the first axis and the second axis.

10. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 8, characterized in that, The first and second mating parts of the first rotary connection structure are connected to the movable control part by connecting grooves that are adapted to the corresponding ends of the movable control part. After the end of the movable control part is inserted into the corresponding connecting groove, the movable control part is engaged with the first or second mating part. Within the rotational engagement range, outside the connecting groove, the first and second mating parts of the first rotary connection structure are cylindrical surfaces that engage with the corresponding ends.

11. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 8, characterized in that, The first mating component and the second mating component of the first rotating connection structure are provided with cylindrical bases, and the rotating connection frame is provided with a rotating support surface that mates with the cylindrical base of the first rotating connection structure.

12. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 8, characterized in that, The third rotation limiting structure includes a first mating part fixed on a first shaft and a second mating part fixed on a second shaft. The switching mechanism includes a switching part. The first mating part of the third rotation limiting structure is connected to one end of the switching part through a connecting groove. The second mating part of the third rotation limiting structure is provided with a limiting groove corresponding to the angle range from the second state to the first state, and is connected to the other end of the switching part through the limiting groove. The second rotation limiting structure includes a first mating part fixed on a first shaft and a second mating part fixed on a second shaft. The first mating part of the second rotation limiting structure is connected to one end of the switching part through a first limiting groove. The second mating part of the second rotation limiting structure is connected to the other end of the switching part through a second limiting groove. The second limiting groove corresponds to the angle range from the second state to the switching angle, and the first limiting groove corresponds to the angle range from the switching angle to the first state.

13. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 12, characterized in that, The first mating component of the third rotation limiting structure and the first mating component of the second rotation limiting structure are integrated and have a cylindrical base. The second mating component of the third rotation limiting structure and the second mating component of the second rotation limiting structure are integrated and have a cylindrical base. The rotating connecting frame is provided with a rotation support surface that mates with the cylindrical base of the third rotation limiting structure and the second rotation limiting structure.

14. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 11, characterized in that, The bottom of the limiting grooves in the second and third rotation limiting structures are arc surfaces.

15. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 7, characterized in that, The reset elastic element is disposed on the rotating connecting frame and can revolve together with the rotating connecting frame around the first axis.

16. A dual-axis hinge for a mobile terminal with a lifting switching function as described in claim 10, 12, or 13, characterized in that, All connecting grooves are circular arc grooves.

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