Novel mobile phone hinge structure

Abstract

The utility model provides a novel mobile phone hinge structure. The novel mobile phone hinge structure comprises a hinge assembly, an execution spring, a shaft rod and a compensation pressure spring, in the swinging process of the first connecting seat, the first gear and the radial cam structure are driven to swing together through the first tooth structure; after the radial protruding structure is abraded and the outer diameter of the radial protruding structure is smaller than the aperture of the first shaft hole or the radial protruding structure falls off, limitation of the radial protruding structure to the shaft rod is relieved; the shaft rod moves in the axial direction under the action of the spring force of the compensation compression spring, the limiting table abuts against the body, then the two ends of the compensation compression spring abut against the body and the sliding block, and the spring force of the compensation compression spring tends to force the sliding block to be attached to the connecting base in the axial direction. And the meshing state of the first cam structure and the second cam structure is further maintained, so that the spring force attenuation of the execution spring is partially or completely compensated, the effectiveness and stability of the hinge structure are maintained, and the service life of the mobile phone hinge is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of foldable electronic equipment, in particular to a novel hinge structure for a mobile phone. Background Art

[0002] At present, the folding mechanism of a foldable electronic device usually compresses the locking component through a compression spring, so that the concave-convex structure on the locking component and the cam on the transmission arm continuously slide out and insert to produce a damping feeling, thereby realizing the folding and unfolding of the foldable electronic device. However, as the folding times of the foldable electronic device increase over time, the cam and the concave-convex component will be worn, and the elastic force of the compression spring will gradually decay, thereby weakening the damping feeling of the folding mechanism of the foldable electronic device and making the folding mechanism of the foldable electronic device loose. Utility Model Content

[0003] The purpose of the utility model is to provide a novel hinge structure for a mobile phone to solve at least one of the above-mentioned technical problems existing in the prior art.

[0004] In order to solve the above technical problems, the utility model provides a novel mobile phone hinge structure, including: a hinge assembly, an actuating spring, a shaft rod and a compensating compression spring;

[0005] The hinge assembly comprises: a body, a slider and two connecting seats;

[0006] The two connecting seats are pivotally connected to the main body in a left-right symmetrical manner through a pivot axis;

[0007] The slider can be slidably arranged on the body along the axial direction of the pivot axis;

[0008] The slider is provided with a first cam structure on an end surface of one side close to the connecting seat;

[0009] The connecting seat is provided with a second cam structure which meshes with the first cam structure;

[0010] The first cam structure and the second cam structure are arranged around the circumference of the pivot shaft, and are used for temporary limiting and locking of the connecting seat during the swinging process;

[0011] The two ends of the actuating spring are respectively connected to the slider and the connecting seat, and the actuating spring tends to force the slider to abut against the connecting seat along the axial direction to maintain the meshing state of the first cam structure and the second cam structure;

[0012] The first end of the shaft rod is movably inserted into the first shaft hole on the slider; the second end of the shaft rod is movably inserted into the second shaft hole on the body;

[0013] The shaft rod is provided with a limit platform on one side close to the second shaft hole, the compensating compression spring is sleeved on the shaft rod, one end of the compensating compression spring abuts against the limit platform, and the other end of the compensating compression spring abuts against the slider; a gap is left between the limit platform and the body;

[0014] A radial protrusion structure is provided on the protruding portion of the first end of the shaft rod extending outwardly of the first shaft hole (the side of the slider away from the compensating compression spring); the radial protrusion structure abuts against the outer edge of the first shaft hole to prevent the shaft rod from moving axially under the spring force of the compensating compression spring, thereby causing the limit platform to abut against the body;

[0015] The main body is rotatably provided with a first gear;

[0016] The connecting seat comprises a first connecting seat; the first connecting seat is provided with a first tooth structure meshing with the first gear;

[0017] A shift fork is fixedly arranged on the shaft rod, and a clamping slot is arranged on the shift fork;

[0018] It also includes a radial cam structure fixedly arranged relative to the first gear; the radial cam structure includes a circumferential working surface with a variable diameter in the circumferential direction of the first gear;

[0019] The radial cam structure is inserted into the slot, and the circumferential working surface of the radial cam structure abuts against the side surface of the slot;

[0020] During the swinging of the first connecting seat, the first gear and the radial cam structure are driven to swing together through the first tooth structure; the radial cam structure forces the shift fork to drive the shaft rod to swing through the circumferential working surface, and the radial protrusion structure on the protruding portion of the first end of the shaft rod rubs against the outer edge or inner wall of the first axial hole of the slider; after the radial protrusion structure is worn and its outer diameter is smaller than the aperture of the first axial hole or the radial protrusion structure falls off, the restriction of the radial protrusion structure on the shaft rod is released; the shaft rod moves axially under the spring force of the compensating compression spring, and the limit platform abuts against the main body, and then the two ends of the compensating compression spring abut against the main body and the slider, and the spring force of the compensating compression spring tends to force the slider to axially abut against the connecting seat, further maintaining the meshing state of the first cam structure and the second cam structure, thereby partially or completely compensating for the attenuation of the spring force of the actuator spring.

[0021] During long-term use (such as 1-2 years), or tens of thousands of hinge openings and closings, the slider in the present application also moves back and forth axially tens of thousands of times. Driven by the radial cam structure and the shift fork, the shaft rod also swings tens of thousands of times. After the radial protrusion structure of the shaft rod is shortened by the side wall or the edge of the first shaft hole and the outer diameter is smaller than the aperture of the first shaft hole, the radial protrusion structure releases the limitation on the shaft rod, and then releases the compensating compression spring. The compensating compression spring starts to work, and its two ends abut against the body and the slider, thereby compensating for part or all of the attenuation of the actuator spring, thereby maintaining the effectiveness and stability of the hinge structure and extending the service life of the mobile phone hinge.

[0022] Furthermore, it comprises a first shaft body, the first gear is fixedly sleeved on the first shaft body, and is rotatably arranged on the main body through the first shaft body; the radial cam structure is arranged on the first shaft body.

[0023] Furthermore, one end of the first shaft body is rotatably inserted into a first mounting hole on the body, and the other end of the first shaft body is rotatably inserted into a second mounting hole on the slider.

[0024] Furthermore, the shift fork is arranged on the outer side of the radial protrusion structure of the shaft (the side of the radial protrusion structure facing away from the compensating compression spring).

[0025] Furthermore, the slot is a U-shaped opening slot or an oblong hole slot.

[0026] The radial cam structure in the present application may also be an eccentric structure. When the eccentric structure swings along with the first gear, the eccentric structure pushes the shifting rod and the shaft rod to swing through the side wall of the slot.

[0027] Further, the limiting platform is an annular boss or a semi-annular boss fixedly arranged on the shaft rod; or, the limiting platform is a C-shaped clamping ring clamped on the shaft rod.

[0028] The working surface of the radial cam structure in the present application is an outer circumferential surface with varying height in the radial direction, while the working surfaces of the first cam structure and the second cam structure between the connecting seat and the slider are end surfaces with varying height in the axial direction of the pivot shaft.

[0029] Furthermore, the radial protrusion structure is in the shape of a waist drum, a rhombus or a frustum, etc. The above-mentioned shape is convenient for rapid wear and the outer diameter becomes smaller, thereby satisfying the time requirement for performing spring attenuation compensation.

[0030] More preferably, the radial protrusion structure includes one or more longitudinal sections (the longitudinal sections are parallel to the axial direction of the shaft rod) for reducing the contact area with the side wall or edge of the first shaft hole, thereby accelerating the wear rate.

[0031] Among them, the first cam structure and the second cam structure can be used to temporarily lock the two connecting seats at a certain angle or several angles, for example, when the two folding screens are horizontally unfolded, the connecting seat is maintained at 0°, when the two folding screens are folded together, the connecting seat is maintained at 90°, or the connecting seat is temporarily locked at other angles such as 10°, 20°, 30°, etc.

[0032] When the spring force of the actuator spring or the combined force of the actuator spring and the compensating compression spring is overcome, the slider moves away from the connecting seat, the first cam structure and the second cam structure are relatively displaced, the temporary locking state of the connecting seat is released, and the connecting seat swings.

[0033] Furthermore, the connecting seat comprises a connecting frame and a rotating seat sleeved on the pivot shaft; the connecting frame is pivotally connected to the pivot shaft via the rotating seat;

[0034] The second cam structure is arranged on one side end surface of the rotating seat.

[0035] Furthermore, a fourth cam structure is provided on the other side end surface of the rotating seat, and a third cam structure meshing with the fourth cam structure is provided on the main body;

[0036] The rotating seat is slidably mounted on the pivot shaft;

[0037] The actuating spring tends to force the rotating seat to abut against the third cam structure through the slider, thereby maintaining the meshing state of the third cam structure and the fourth cam structure.

[0038] Furthermore, the connection base also includes a second connection base;

[0039] The first connecting seat is pivotally connected to the main body via a first pivot axis;

[0040] The second connecting seat is pivotally connected to the main body via a second pivot axis;

[0041] The first connecting seat and the second connecting seat are arranged symmetrically.

[0042] Furthermore, a second gear which meshes with the first gear and transmits power to each other is rotatably provided on the main body; a second tooth structure which meshes with the second gear is provided on the second connecting seat, so as to enable the first connecting seat and the second connecting seat to rotate synchronously in the same direction or in the opposite direction.

[0043] Wherein, the actuator spring can be a compression spring, one end of the actuator spring abuts against the main body, and the other end of the actuator spring abuts against the back of the slider (that is, the end face on the side away from the first cam structure); or, the actuator spring is a tension spring, one end of the actuator spring is hooked on the main body, and the other end of the actuator spring is hooked on the front end face of the slider (that is, the end face on the side of the first cam structure).

[0044] Furthermore, the two groups of sliders, the actuating springs and the compensating compression springs are arranged symmetrically up and down, thereby improving the smoothness during the opening and closing process.

[0045] The so-called mobile phones in this application not only include traditional folding screen mobile phones, but also include electronic devices with hinged structures such as pads and laptops.

[0046] By adopting the above technical solution, the utility model has the following beneficial effects:

[0047] During long-term use, the spring force of the actuator spring gradually decays. The reason for the decay may be the creep of the material of the actuator spring itself, but more importantly, it is due to the continuous wear between the cam structures, which causes the compressed length of the actuator spring to become longer, or the stretched length to become shorter.

[0048] The utility model provides a novel hinge structure for a mobile phone. After a long period of use, the compensating compression spring can be released and made to work, and the spring force of the compensating spring is used to compensate for part or all of the attenuation of the executing spring, thereby maintaining the effectiveness and stability of the hinge structure and extending the service life of the mobile phone hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0050] Figure 1 It is a front view of a new mobile phone hinge structure disclosed in an embodiment of the utility model;

[0051] Figure 2 for Figure 1 Schematic diagram of the upper local structure of the mobile phone hinge structure;

[0052] Figure 3 for Figure 2 Exploded diagram of local structure;

[0053] Figure 4 for Figure 3 A three-dimensional diagram of the hinge structure of the mobile phone shown;

[0054] Figure 5 It is an exploded schematic diagram of the assembly structure of the compensating compression spring and the slider;

[0055] Figure 6 It is a partial schematic diagram of the radial cam structure;

[0056] Figure 7 An exploded view of the shaft.

[0057] Reference numerals:

[0058] 10-main body; 11-pivot shaft; 12-second axial hole; 15-third cam structure; 20-actuator spring; 25-compensating compression spring; 30-axle rod; 31-limiting platform; 32-radial protrusion structure; 33-shift fork; 40-slider; 41-first cam structure; 42-first axial hole; 43-second mounting hole; 50-connecting seat; 50a-second cam structure; 50b-fourth cam structure; 51-first connecting seat; 51a-first tooth structure; 52-second connecting seat; 52a-second tooth structure; 53-rotating seat; 54-connecting frame; 61-first gear; 62-second gear; 65-radial cam structure; 66-first shaft body. DETAILED DESCRIPTION

[0059] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0060] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The present invention will be further explained below in conjunction with specific implementation methods.

[0063] like Figure 1-7 As shown, this embodiment provides a novel hinge structure for a mobile phone, which includes: a hinge assembly, an actuator spring 20, an axle rod 30 and a compensating compression spring 25; the hinge assembly includes: a main body 10, a slider 40 and two connecting seats 50; the two connecting seats 50 are pivotally connected to the main body 10 symmetrically through a pivot axis 11; the slider 40 can be slidably arranged on the main body 10 along the axial direction of the pivot axis 11; the slider 40 is provided with a first cam structure 41 on a side end face close to the connecting seat 50.

[0064] The connecting seat 50 is provided with a second cam structure 50a which meshes with the first cam structure 41; the first cam structure 41 and the second cam structure 50a are arranged circumferentially around the pivot shaft 11 for temporary limiting and locking of the connecting seat 50 during the swinging process.

[0065] The two ends of the actuator spring 20 are respectively connected to the slider 40 and the connecting seat 50 . The actuator spring 20 tends to force the slider 40 to axially abut against the connecting seat 50 to maintain the meshing state of the first cam structure 41 and the second cam structure 50 a .

[0066] The first end of the shaft rod 30 can be movably inserted into the first shaft hole 42 on the slider 40; the second end of the shaft rod 30 can be movably inserted into the second shaft hole 12 on the body 10; a limit platform 31 is provided on the side of the shaft rod 30 close to the second shaft hole 12, and the compensating compression spring 25 is sleeved on the shaft rod 30, one end of the compensating compression spring 25 rests on the limit platform 31, and the other end of the compensating compression spring 25 rests on the slider 40; a gap is left between the limit platform 31 and the body 10.

[0067] See also Figure 5-7 As shown, a radial protrusion structure 32 is provided on the protruding portion of the first end of the shaft rod 30 extending outward from the first shaft hole 42 (the side of the slider 40 facing away from the compensating compression spring 25); the radial protrusion structure 32 abuts against the outer edge of the first shaft hole 42 to prevent the shaft rod 30 from moving axially under the spring force of the compensating compression spring 25, thereby causing the limit platform 31 to abut against the main body 10.

[0068] The main body 10 is rotatably provided with a first gear 61 ; the connecting seat 50 includes a first connecting seat 51 ; the first connecting seat 51 is provided with a first tooth structure 51 a meshing with the first gear 61 .

[0069] A shift fork 33 is fixedly disposed on the shaft rod 30 , and a clamping groove is disposed on the shift fork 33 .

[0070] It also includes a radial cam structure 65 fixedly arranged relative to the first gear 61; the radial cam structure 65 includes a circumferential working surface with a variable diameter in the circumferential direction of the first gear 61; the radial cam structure 65 is inserted into the slot of the shift fork 33, and the circumferential working surface of the radial cam structure 65 abuts against the side of the slot.

[0071] During the swinging process of the first connecting seat 51, the first gear 61 and the radial cam structure 65 are driven to swing together through the first tooth structure 51a; the radial cam structure 65 forces the shift fork 33 to drive the shaft rod 30 to swing through the circumferential working surface, and the radial protrusion structure 32 on the first end extension of the shaft rod 30 rubs against the outer edge or inner wall of the first shaft hole 42 of the slider 40; after the radial protrusion structure 32 is worn and its outer diameter is smaller than the aperture of the first shaft hole 42 or the radial protrusion structure 32 falls off, the restriction of the radial protrusion structure 32 on the shaft rod 30 is released; the shaft rod 30 moves axially under the spring force of the compensation compression spring 25, the limit platform 31 abuts against the body 10, and then the two ends of the compensation compression spring 25 abut against the body 10 and the slider 40, the spring force of the compensation compression spring 25 tends to force the slider 40 to abut against the connecting seat 50 axially, further maintaining the meshing state of the first cam structure 41 and the second cam structure 50a, thereby partially or completely compensating for the spring force attenuation of the actuator spring 20.

[0072] During long-term use (such as 1-2 years), or tens of thousands of hinge openings and closings, the slider 40 in the present application also moves back and forth axially tens of thousands of times. Driven by the radial cam structure 65 and the fork 33, the shaft 30 also swings tens of thousands of times. After the radial protrusion structure 32 of the shaft 30 is shortened by the side wall or the edge of the first shaft hole 42 and the outer diameter is smaller than the aperture of the first shaft hole 42, the radial protrusion structure 32 releases the limitation on the shaft 30, and then releases the compensating compression spring 25. The compensating compression spring 25 starts to work, and its two ends abut against the body 10 and the slider 40, thereby compensating for part or all of the attenuation of the actuator spring 20, thereby maintaining the effectiveness and stability of the hinge structure and extending the service life of the mobile phone hinge.

[0073] Furthermore, it includes a first shaft body 66 , the first gear 61 is fixedly sleeved on the first shaft body 66 , and is rotatably arranged on the main body 10 through the first shaft body 66 ; the first shaft body 66 is provided with the above-mentioned radial cam structure 65 .

[0074] Specifically, one end of the first shaft body 66 is rotatably inserted into the first mounting hole on the body 10 , and the other end of the first shaft body 66 is rotatably inserted into the second mounting hole 43 on the slider 40 .

[0075] In this embodiment, the shift fork 33 is arranged on the outer side of the radial protrusion structure 32 of the shaft rod 30 (the side of the radial protrusion structure 32 away from the compensating compression spring 25). The slot is a U-shaped opening slot or an oblong hole slot. The shift fork 33 is detachably connected to the shaft rod 30, or is made integrally.

[0076] The radial cam structure 65 in the present application may also be an eccentric structure. When the eccentric structure swings along with the first gear 61 , the eccentric structure pushes the lever and the shaft 30 to swing through the side wall of the slot.

[0077] Furthermore, the limiting platform 31 may be an annular boss or a semi-annular boss fixedly disposed on the shaft 30 ; in this embodiment, the limiting platform 31 is preferably a C-shaped clamping ring clamped on the shaft 30 .

[0078] The working surface of the radial cam structure 65 in the present application is an outer circumferential surface with varying height in the radial direction, while the working surfaces of the first cam structure 41 and the second cam structure 50 a between the connecting seat 50 and the slider 40 are end surfaces with varying height in the axial direction of the pivot shaft 11 .

[0079] Preferably, the radial protrusion structure 32 is in a waist drum shape, a diamond shape, a frustum shape, etc. The above shape is convenient for rapid wear and the outer diameter becomes smaller, thereby satisfying the time requirement for performing attenuation compensation of the spring 20. More preferably, the radial protrusion structure 32 includes one or more longitudinal sections (the longitudinal sections are parallel to the axial direction of the shaft 30) for reducing the contact area with the side wall or the edge of the first shaft hole 42, thereby accelerating the wear speed.

[0080] Among them, the first cam structure 41 and the second cam structure 50a can be used to temporarily lock the two connecting seats 50 at a certain angle or several angles, for example, when the two folding screens are horizontally unfolded, the connecting seat 50 remains in the 0° state, when the two folding screens are folded together, the connecting seat 50 remains in the 90° state, or the connecting seat 50 remains temporarily locked at other angles such as 10°, 20°, 30°, etc.

[0081] When the spring force of the actuator spring 20 or the combined force of the actuator spring 20 and the compensating compression spring 25 is overcome, the slider 40 moves away from the connecting seat 50, the first cam structure 41 and the second cam structure 50a are relatively displaced, the temporary locking state of the connecting seat 50 is released, and the connecting seat 50 swings.

[0082] Furthermore, the connecting seat 50 includes a connecting frame 54 and a rotating seat 53 sleeved on the pivot shaft 11; the connecting frame 54 is pivotally connected to the pivot shaft 11 through the rotating seat 53; the connecting frame 54 and the rotating seat 53 are detachably connected by plugging. The second cam structure 50a is arranged on one side end surface of the rotating seat 53.

[0083] Furthermore, a fourth cam structure 50 b is disposed on the other side end surface of the rotating seat 53 , and a third cam structure 15 meshing with the fourth cam structure 50 b is disposed on the body 10 ; the rotating seat 53 is slidably mounted on the pivot shaft 11 .

[0084] The actuating spring 20 tends to force the rotating seat 53 to abut against the third cam structure 15 through the slider 40 , thereby maintaining the meshing state of the third cam structure 15 and the fourth cam structure 50 b.

[0085] Furthermore, the connection seat 50 further includes a second connection seat 52; the first connection seat 51 is pivotally connected to the body 10 via a first pivot axis; the second connection seat 52 is pivotally connected to the body 10 via a second pivot axis; the first connection seat 51 and the second connection seat 52 are arranged symmetrically. The body 10 is rotatably provided with a second gear 62 that meshes with the first gear 61; the second connection seat 52 is provided with a second tooth structure 52a that meshes with the second gear 62, so that the first connection seat 51 and the second connection seat 52 can rotate synchronously in the same direction or in the opposite direction.

[0086] Among them, the execution spring 20 can be a compression spring, one end of the execution spring 20 is against the main body 10, and the other end of the execution spring 20 is against the back of the slider 40 (that is, the end face on the side away from the first cam structure 41); or, the execution spring 20 is a tension spring, one end of the execution spring 20 is hooked on the main body 10, and the other end of the execution spring 20 is hooked on the front end face of the slider 40 (that is, the end face on the side of the first cam structure 41).

[0087] In this embodiment, two sets of sliders 40, the execution spring 20 and the compensating compression spring 25 are arranged symmetrically up and down, thereby improving the smoothness during the opening and closing process. Among them, the body 10 is a component, which is used to realize the connection and fixation between other components.

[0088] The so-called mobile phones in this application not only include traditional folding screen mobile phones, but also include electronic devices with hinged structures such as pads and laptops.

[0089] During long-term use, the spring force of the actuator spring 20 gradually decays. The reason for the decay may be the creep of the material of the actuator spring 20 itself, but more importantly, due to the continuous wear between the cam structures, the compressed length of the actuator spring 20 becomes longer, or the stretched length becomes shorter. The utility model provides a novel mobile phone hinge structure. After a long period of use, the compensating compression spring 25 can be released and made to participate in the work, and the spring force of the compensating spring is used to compensate for part or all of the decay of the actuator spring 20, thereby maintaining the effectiveness and stability of the hinge structure and extending the service life of the mobile phone hinge.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A new mobile phone hinge structure, characterized in that: include: Hinge assembly, actuator spring, shaft rod and compensating compression spring; The hinge assembly comprises: a body, a slider and two connecting seats; The two connecting seats are pivotally connected to the main body in a left-right symmetrical manner through a pivot axis; The slider can be slidably arranged on the body along the axial direction of the pivot axis; The slider is provided with a first cam structure on an end surface of one side close to the connecting seat; The connecting seat is provided with a second cam structure which meshes with the first cam structure; The first cam structure and the second cam structure are arranged around the circumference of the pivot shaft, and are used for temporary limiting and locking of the connecting seat during the swinging process; The two ends of the actuating spring are respectively connected to the slider and the connecting seat, and the actuating spring tends to force the slider to abut against the connecting seat along the axial direction to maintain the meshing state of the first cam structure and the second cam structure; The first end of the shaft rod is movably inserted into the first shaft hole on the slider; the second end of the shaft rod is movably inserted into the second shaft hole on the body; The shaft rod is provided with a limit platform on one side close to the second shaft hole, the compensating compression spring is sleeved on the shaft rod, one end of the compensating compression spring abuts against the limit platform, and the other end of the compensating compression spring abuts against the slider; a gap is left between the limit platform and the body; A radial protrusion structure is provided on the protruding portion of the first end of the shaft rod extending out of the outside of the first shaft hole; the radial protrusion structure abuts against the outer edge of the first shaft hole, and is used to prevent the shaft rod from moving axially under the spring force of the compensating compression spring, thereby making the limit platform abut against the body; The main body is rotatably provided with a first gear; The connecting seat comprises a first connecting seat; the first connecting seat is provided with a first tooth structure meshing with the first gear; A shift fork is fixedly arranged on the shaft rod, and a clamping slot is arranged on the shift fork; It also includes a radial cam structure fixedly arranged relative to the first gear; the radial cam structure includes a circumferential working surface with a variable diameter in the circumferential direction of the first gear; The radial cam structure is inserted into the slot, and the circumferential working surface of the radial cam structure abuts against the side surface of the slot; During the swinging of the first connecting seat, the first gear and the radial cam structure are driven to swing together through the first tooth structure; the radial cam structure forces the shift fork to drive the shaft rod to swing through the circumferential working surface, and the radial protrusion structure on the protruding portion of the first end of the shaft rod rubs against the outer edge or inner wall of the first axial hole of the slider; after the radial protrusion structure is worn and its outer diameter is smaller than the aperture of the first axial hole or the radial protrusion structure falls off, the restriction of the radial protrusion structure on the shaft rod is released; the shaft rod moves axially under the spring force of the compensating compression spring, and the limit platform abuts against the main body, and then the two ends of the compensating compression spring abut against the main body and the slider, and the spring force of the compensating compression spring tends to force the slider to axially abut against the connecting seat, further maintaining the meshing state of the first cam structure and the second cam structure, thereby partially or completely compensating for the attenuation of the spring force of the actuator spring.

2. The new mobile phone hinge structure according to claim 1 is characterized in that: It comprises a first shaft body, the first gear is fixedly sleeved on the first shaft body and is rotatably arranged on the main body through the first shaft body; the radial cam structure is arranged on the first shaft body.

3. The new mobile phone hinge structure according to claim 2 is characterized in that: One end of the first shaft body is rotatably inserted into a first mounting hole on the body, and the other end of the first shaft body is rotatably inserted into a second mounting hole on the slider.

4. The new mobile phone hinge structure according to claim 2 is characterized in that: The shift fork is arranged on the outer side of the radial protrusion structure of the shaft rod.

5. The new mobile phone hinge structure according to claim 1 is characterized in that: The slot is a U-shaped opening slot or an oblong hole slot.

6. The new mobile phone hinge structure according to claim 1 is characterized in that: The limiting platform is an annular boss or a semi-annular boss fixedly arranged on the shaft rod; or, the limiting platform is a C-shaped clamping ring clamped on the shaft rod.

7. The new mobile phone hinge structure according to claim 1 is characterized in that: The radial protrusion structure is in the shape of a waist drum, a rhombus or a frustum.

8. The new mobile phone hinge structure according to claim 1 is characterized in that: The radial protrusion structure includes one or more longitudinal sections, which are used to reduce the contact area with the side wall or edge of the first shaft hole and accelerate the wear speed.

9. The new mobile phone hinge structure according to claim 1 is characterized in that: The connection base also includes a second connection base; The first connecting seat is pivotally connected to the main body via a first pivot axis; The second connecting seat is pivotally connected to the main body via a second pivot axis; The first connecting seat and the second connecting seat are arranged symmetrically.

10. The new mobile phone hinge structure according to claim 9, characterized in that: The main body is rotatably provided with a second gear meshing with the first gear; the second connecting seat is provided with a second tooth structure meshing with the second gear, so as to enable the first connecting seat and the second connecting seat to rotate synchronously in the same direction or in the opposite direction.

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