CN219262955U - Rotating mechanism and folding terminal - Google Patents

Abstract

The application relates to the technical field of electronic equipment and discloses a rotating mechanism and a folding terminal. The rotating mechanism comprises a first swing arm provided with a first screw, a second swing arm provided with a second screw and a screw group. Wherein the first swing arm is rotatable about a first axis and the second swing arm is rotatable about a second axis, the second axis being parallel to the first axis. The first screw rod and the second screw rod are in threaded connection through the screw rod group, so that the first swing arm and the second swing arm can synchronously and reversely rotate. Above-mentioned slewing mechanism is through setting up the screw rod respectively in first swing arm and second swing arm to utilize screw rod group to make the screw rod threaded connection in two swing arms, simplified slewing mechanism's structure, and set up the easy realization in production of screw rod in the swing arm, reduced manufacturing cost. The rotating mechanism is simple and compact in structure, can be fully placed in a narrow space in the shell, is favorable for realizing small size and thinness of the folding machine, and is favorable for miniaturization of the folding terminal.

Description

Rotating mechanism and folding terminal

Technical Field

The application relates to the technical field of electronic equipment, in particular to a rotating mechanism and a folding terminal.

Background

As flexible screen technology matures, flexible folding is a trend towards future end product applications. In order to improve the requirements of functions such as appearance display and internal screen of a folding terminal (such as folding mobile phone, folding tablet, folding computer and other electronic devices), the folding terminal needs to keep the bodies (also called as middle frame) at the left and right sides to rotate synchronously in the opening and closing process.

The prior synchronous rotating mechanism adopts a spiral groove structure and comprises a male head and a female head, wherein the male head is provided with a convex block, and the female head is provided with a spiral groove matched with the convex block. In this synchronous rotating mechanism, public head sets up in synchronous slider side, and female head quantity is two, sets up respectively in the swing arm of two organism, and when public head slided, its upper lug accessible helicla flute drove two female heads and with two swing arms synchronous rotation of two female head connections. However, the synchronous rotating mechanism has a complex structure and high processing cost (wherein the female head needs 5-axis machine tools for processing), which is not beneficial to mass production.

Disclosure of Invention

In order to solve the problems that the synchronous rotating mechanism is complex in structure and high in cost, the application provides a rotating mechanism and a folding terminal, and the rotating mechanism is relatively simple in structure and convenient to manufacture, and can realize large-scale mass production in production.

A first aspect of the present application provides a rotating mechanism comprising:

the first swing arm is provided with a first screw rod and can rotate around a first axis;

the second swing arm is provided with a second screw rod and can rotate around a second axis, and the second axis is parallel to the first axis;

the first screw rod and the second screw rod are connected through screw rod groups in a threaded mode, so that the first swing arm and the second swing arm can synchronously and reversely rotate.

It will be appreciated that the above-described rotating mechanism may be applied to a folding terminal, which may be an electronic device that needs to be opened and closed synchronously, such as a folding mobile phone, a tablet pc (tablet personal computer), an electronic book reader, a laptop (personal digital assistant, PDA), a Personal Digital Assistant (PDA), a personal computer, a notebook (notebook), a vehicle-mounted device, a wearable device (e.g., a wristwatch), a box, and the like.

That is, in the embodiment of the application, the first swing arm and the second swing arm are integrated with screw structures, and screws on the first swing arm and the second swing arm are in threaded connection through the screw group, so that the first swing arm and the second swing arm synchronously rotate reversely. Specifically, the first axis and the second axis are provided extending in the Z direction mentioned in the later-described embodiment, the first swing arm is rotated in the a 'direction mentioned in the later-described embodiment, and the second swing arm is rotated in the B' direction mentioned in the later-described embodiment. Illustratively, the first swing arm and the second swing arm are disposed side by side along a first direction (e.g., the first direction may be the X direction mentioned in the later embodiments); the screw set includes a plurality of threaded screws that are threaded with one another (alternatively, the screw set may include an even number of threaded screws) and the screws are disposed between a first screw on the first swing arm and a second screw on the second swing arm in a first direction to enable synchronous counter-rotation of the first swing arm and the second swing arm.

The rotating mechanism in the scheme is characterized in that the first swing arm and the second swing arm are respectively provided with the screw rods, the screw rod groups are utilized to enable the screw rods on the two swing arms to be in threaded connection, the structure of the rotating mechanism is simplified, the screw rods are arranged on the swing arms, the production is easy, and the manufacturing cost is reduced. The rotating mechanism is simple and compact in structure, can be fully placed in a narrow space in the shell, is favorable for realizing small size and thinness of the folding machine, and is favorable for miniaturization of the folding terminal.

In some possible implementations of the first aspect, the first screw is disposed at an end of the first swing arm opposite to the second swing arm along the axial extension, and the second screw is disposed at an end of the second swing arm opposite to the first swing arm along the axial extension.

In some possible implementations of the first aspect, the first screw and the second screw are threaded in opposite directions.

In some possible implementations of the first aspect, a portion of the first screw in the circumferential direction is provided with a first thread, and a portion of the second screw in the circumferential direction is provided with a second thread.

In some possible implementations of the first aspect, the screw set includes a third screw and a fourth screw, the third screw is in threaded connection with the first screw and the second screw, respectively, and the fourth screw is in threaded connection with the third screw and the second screw, respectively.

In some possible implementations of the first aspect, the first screw has first support shafts at two ends in the axial direction, and the second screw has second support shafts at two ends in the axial direction;

the rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a first supporting frame and a second supporting frame; the first screw, the second screw and the screw group are arranged between the first support frame and the second support frame along the direction parallel to the first axis, and the two ends of the screw group in the axial direction are respectively connected with the first support frame and the second support frame in a rotating way;

the first support frame and the second support frame extend along a first direction, the first direction is perpendicular to a first axis, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft;

the two ends of the first support frame in the first direction are respectively and rotatably connected with a first support rotating shaft at one end of the first screw rod and a second support rotating shaft at one end of the second screw rod;

the first through hole and the second through hole are respectively formed in two ends of the second support frame in the first direction, the first support rotating shaft at the other end of the first screw rod and one end of the first rotating shaft are arranged in the first through hole, and the second support rotating shaft at the other end of the second screw rod and one end of the second rotating shaft are arranged in the second through hole.

In some possible implementations of the first aspect, a first cam is further disposed on the first swing arm, and a second cam is further disposed on the second swing arm, where the first cam and the second cam are disposed correspondingly;

the rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a cam bracket, a third supporting frame and a clamp spring bracket; wherein, the liquid crystal display device comprises a liquid crystal display device,

the cam bracket, the third support and the clamp spring bracket all extend along a first direction, the first direction is perpendicular to a first axis, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft;

the cam support is arranged on one side of the first cam and the second cam, which is far away from the screw rod group, and two ends of the cam support in the first direction are respectively matched with the first cam and the second cam in a concave-convex manner;

the third support frame and the cam support are arranged at intervals along the direction parallel to the first axis, and the clamp spring support is arranged at one side of the third support frame far away from the cam support;

the first rotating shaft sequentially penetrates through the first cam, one end of the cam support, one end of the third support frame and one end of the clamp spring support; the second rotating shaft sequentially penetrates through the second cam, the other end of the cam bracket, the other end of the third supporting frame and the other end of the clamp spring bracket;

And springs are sleeved on the first rotating shaft and the second rotating shaft and are positioned between the cam bracket and the third supporting frame.

In some possible implementations of the first aspect, the rotation mechanism further includes a fixing frame disposed between the screw set and the cam bracket in a direction parallel to the first axis.

A second aspect of the present application provides a folding terminal, where the folding terminal includes a first body, a second body, and a first rotating mechanism, where the first rotating mechanism is any one of the foregoing first aspect and possible implementation manners of the first aspect. The first swing arm in the first rotating mechanism is connected with the first machine body, and the second swing arm in the first rotating mechanism is connected with the second machine body.

In some possible implementations of the second aspect, the folding terminal further includes a flexible screen, and the flexible screen covers the first body, the second body, and the first rotating mechanism. The first machine body and the second machine body relatively rotate through the first rotating mechanism and can drive the flexible screen to move so that the flexible screen is in a bending state or an unfolding state, and then the folding terminal is switched between the folding state and the unfolding state.

In some possible implementations of the second aspect, the second rotation mechanism includes a first swing arm provided with a first rotation seat, a second swing arm provided with a second rotation seat, and a gear set. Wherein the first swing arm is rotatable about a first axis and the second swing arm is rotatable about a second axis, the second axis being parallel to the first axis. The first rotating seat is provided with a plurality of first gear teeth distributed along the circumferential direction, the second rotating seat is provided with a plurality of second gear teeth distributed along the circumferential direction, and the plurality of first gear teeth and the plurality of second gear teeth are connected through gear set meshing, so that the first swing arm and the second swing arm can synchronously and reversely rotate.

That is, in the embodiment of the present application, the first swing arm and the second swing arm of the second rotation mechanism are integrated with a gear tooth structure, and the gear teeth on the first swing arm and the second swing arm of the second rotation mechanism are engaged through a gear set, so that the first swing arm and the second swing arm synchronously rotate reversely. Specifically, the first axis and the second axis are provided extending in the Z direction mentioned in the later-described embodiment, the first swing arm is rotated in the a direction mentioned in the later-described embodiment, and the second swing arm is rotated in the B direction mentioned in the later-described embodiment. Illustratively, the first swing arm and the second swing arm are disposed side by side along a first direction (e.g., the first direction may be the X direction mentioned in the later embodiments); the gear set includes a plurality of intermeshing gears (alternatively, the gear set may include an even number of meshing gears) and the gears are disposed between first gear teeth on the first swing arm and second gear teeth on the second swing arm in a first direction to enable synchronous counter-rotation of the first swing arm and the second swing arm.

Above-mentioned second slewing mechanism sets up the teeth of a cogwheel structure respectively through on first swing arm and second swing arm to utilize the gear train to make the teeth of a cogwheel meshing connection on two swing arms, simplified second slewing mechanism's structure, can make this second slewing mechanism fully place in the narrow and small space in the casing, be favorable to realizing that folder size is done little and is done thinly, be favorable to folding terminal's miniaturization. In addition, the second rotating mechanism is simple and compact in structure, low in cost and wide in application range.

In some possible implementations of the second aspect, a portion of the first rotating seat extending in the circumferential direction is provided with a plurality of first gear teeth, and a portion of the second rotating seat extending in the circumferential direction is provided with a plurality of second gear teeth. Wherein the circumferential direction is a direction surrounding the circumferential surface of the rotating seat, i.e., a C direction mentioned in the later-described embodiment. In the C direction mentioned in the later-described embodiment, gear teeth are provided on a part of the peripheral surfaces of the first rotating seat and the second rotating seat. For example, the circumferential surfaces of the first rotating seat and the second rotating seat are 360 degrees, and gear teeth are arranged on the opposite half circumferential surfaces (namely, 180 degrees circumferential surfaces opposite to the first rotating seat and the second rotating seat). By adopting the mode, the size of the second rotating mechanism can be further reduced on the premise that the second rotating mechanism can realize the synchronous rotating function.

In some possible implementations of the second aspect, the gear set includes a first gear and a second gear, the first gear being meshed with the first gear tooth and the second gear, respectively, and the second gear being meshed with the first gear tooth and the second gear tooth, respectively.

That is, in the embodiment of the present application, the first gear and the second gear are disposed between the first gear tooth and the second gear tooth along the X direction in the later embodiment, so that the first swing arm and the second swing arm are engaged and connected through the first gear and the second gear, and further, synchronous reverse rotation of the first swing arm and the second swing arm is ensured.

In some possible implementations of the second aspect, the second rotation mechanism further includes a first rotation shaft, and the first axis is an axis of the first rotation shaft;

the first rotating seat comprises a first shaft hole, the first shaft hole comprises a first part and a second part along the axial direction, the first part of the first shaft hole is arranged corresponding to the first gear teeth, and the aperture of the first part of the first shaft hole is smaller than that of the second part of the first shaft hole;

the first rotating shaft of the second rotating mechanism comprises a first part and a second part, the diameter of the first part of the first rotating shaft is smaller than that of the second part of the first rotating shaft, the first part of the first shaft hole is sleeved on the first part of the first rotating shaft, and the second part of the first shaft hole is sleeved on the second part of the first rotating shaft.

That is, in the embodiment of the present application, the first rotating seat is provided with the first shaft hole along the Z direction mentioned later, and the first shaft hole is a stepped hole in the Z direction, wherein the first gear teeth encircle the periphery of the first portion with a small aperture in the first shaft hole, that is, the aperture of the inside of the first gear teeth is smaller than the aperture of the other portions of the first rotating seat, and the first rotating shaft of the corresponding second rotating mechanism is also provided in the form of a stepped shaft, so that the integral strength of the first swing arm is ensured while the size of the gear teeth is small, and the local fracture of the first swing arm is prevented.

In addition, the axial direction is the Z direction mentioned in the later-described embodiment, which may be the width direction of the folding terminal. The first portion of the first shaft hole having a smaller diameter and the first portion of the second rotating mechanism having a smaller diameter are closer to the middle frames at both ends of the folding terminal in the width direction than the second portion of the second shaft hole having a larger diameter.

Namely, when the size of the folding machine is thinned, the diameter of the gear teeth is correspondingly reduced, and after the stepped hole and the stepped shaft are added, the thickness of the first gear teeth is correspondingly increased, the diameter of the first rotating shaft is correspondingly reduced, the strength of each part is balanced, and the reliability of the folding terminal is ensured; the size of the folder terminal may also be more challenging, making the folder terminal lighter and thinner.

In some possible implementations of the second aspect, the second rotation mechanism further includes a second rotation shaft, and the second axis is an axis of the second rotation shaft;

the second rotating seat comprises a second shaft hole, the second shaft hole comprises a first part and a second part along the axial direction, the first part of the second shaft hole is arranged corresponding to the second gear teeth, and the aperture of the first part of the second shaft hole is smaller than that of the second part of the second shaft hole;

the second rotating shaft of the second rotating mechanism comprises a first part and a second part, the diameter of the first part of the second rotating shaft is smaller than that of the second part of the second rotating shaft, the first part of the second shaft hole is sleeved on the first part of the second rotating shaft, and the second part of the second shaft hole is sleeved on the second part of the second rotating shaft.

That is, in the embodiment of the present application, the second rotating seat is provided with the second shaft hole along the Z direction mentioned later, and the second shaft hole is a stepped hole in the Z direction, wherein the second gear teeth encircle the outer periphery of the first portion with a small aperture in the second shaft hole, that is, the aperture inside the second gear teeth is smaller than the aperture of other portions of the second rotating seat, and accordingly, the second rotating shaft of the second rotating mechanism is also provided in the form of a stepped shaft, so that the integral strength of the second swing arm is ensured while the size of the second gear teeth is small, and the local fracture of the second swing arm is prevented.

In addition, the axial direction is the Z direction mentioned in the later-described embodiment, which may be the width direction of the folding terminal. The first portion of the second shaft hole having a smaller diameter and the first portion of the second shaft having a smaller diameter are closer to the center frames at both ends of the folding terminal in the width direction than the second portion having a larger diameter.

Based on the above, when the size of the folding terminal is thinned, the diameter of the second gear teeth is correspondingly reduced, and after the stepped hole and the stepped shaft are added, the thickness of the second gear teeth is correspondingly increased, the diameter of the second rotating shaft is correspondingly reduced, the strength of each part is balanced, and the reliability of the folding terminal is ensured; the size of the folder terminal may also be more challenging, making the folder terminal lighter and thinner.

In some possible implementations of the second aspect, the second rotation mechanism further includes a first rotation shaft, and the first axis is an axis of the first rotation shaft; one end of the first rotating seat is provided with a first rotating shaft which is integrally formed with the first rotating seat, and the other end of the first rotating seat is fixedly connected with the first rotating shaft of the second rotating mechanism; and/or, the second rotating mechanism further comprises a second rotating shaft, and the second axis is the axis of the second rotating shaft; one end of the second rotating seat is provided with a second rotating shaft which is integrally formed with the second rotating seat, and the other end of the second rotating seat is fixedly connected with a second rotating shaft of the second rotating mechanism.

Specifically, the other ends of the first rotating shaft and the first rotating seat and the other ends of the second rotating shaft and the second rotating seat can be fixed in a threaded connection, spot welding and other modes.

Based on this, after second slewing mechanism's first pivot (second pivot) and first swing arm (second swing arm) make an organic whole, can guarantee the intensity of each part, guaranteed folding terminal's reliability, also can challenge folding terminal's size more, make folding terminal lighter thinner that can do.

In some possible implementations of the second aspect, the second rotation mechanism further includes a first support frame, the first support frame extends along a first direction, the first direction is perpendicular to the first axis, and two ends of the first support frame in the first direction are respectively connected with the first rotation shaft and the second rotation shaft in a rotation manner.

Specifically, in the axial direction (i.e., in the Z direction mentioned in the later embodiments), the first support of the second rotating mechanism is disposed on the side of the first rotating seat and the second rotating seat near the middle frame of the folding terminal. The first supporting frame of the second rotating mechanism extends along the X direction in the later embodiment, two ends of the first supporting frame are respectively connected with the first rotating shaft on the first rotating seat and the second rotating shaft on the second rotating seat in a rotating way, and further, the rotating shafts on the same side of the gear set are also connected with the first supporting frame in a rotating way. That is, the first supporting frame provides a supporting force point for the rotating shafts on the rotating seats and the rotating shafts on the same side of the gear set, so that the rotating seats and the gear set can be conveniently rotated.

In some possible implementations of the second aspect, two ends of the first rotating seat are provided with a first rotating shaft integrally formed with the first rotating seat, and two ends of the second rotating seat are provided with a second rotating shaft integrally formed with the second rotating seat;

the second rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a first supporting frame and a second supporting frame; the first rotating seat, the second rotating seat and the gear set are arranged between the first supporting frame and the second supporting frame; the first support frame and the second support frame extend along a first direction, the first direction is perpendicular to a first axis, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft;

Two ends of the first support frame in the first direction are respectively connected with a first rotating shaft at one end of the first rotating seat and a second rotating shaft at one end of the second rotating seat in a rotating way;

the second support frame is provided with a first through hole and a second through hole at two ends in the first direction respectively, a first rotating shaft at the other end of the first rotating seat and one end of the first rotating shaft are arranged in the first through hole, and a second rotating shaft at the other end of the second rotating seat and one end of the second rotating shaft are arranged in the second through hole.

Specifically, in the second rotating mechanism, through setting up the rotation axis at each rotation seat both ends, make whole first pivot or second pivot unnecessary with first/second swing arm make an organic whole, also can guarantee the normal rotation of first/second swing arm, improved production efficiency. The two ends of each rotating seat are additionally provided with the rotating shafts, the first rotating shaft and the second rotating shaft do not need to pass through the inside of the rotating seat, so that the strength of each part can be ensured, and the reliability of the folding terminal can be further ensured; the size of the folder terminal may also be more challenging, making the folder terminal lighter and thinner.

In some possible implementations of the second aspect, two first cams are axially spaced on the first swing arm of the second rotating mechanism, two second cams are axially spaced on the second swing arm of the second rotating mechanism, and the first cams are disposed corresponding to the second cams;

A first cam bracket and a second cam bracket are arranged between the two first cams along the axial direction at intervals, and both the first cam bracket and the second cam bracket extend along a first direction which is perpendicular to the first axis;

one end of the first cam bracket and one end of the second cam bracket are respectively matched with the corresponding first cam concave-convex, and the other end of the first cam bracket and the other end of the second cam bracket are respectively matched with the corresponding second cam concave-convex;

the second rotating mechanism further comprises a first rotating shaft and a second rotating shaft, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft; one end of the first rotating shaft is connected with the first rotating seat, and the other end of the first rotating shaft penetrates through the first cam, one end of the first cam bracket and one end of the second cam bracket; one end of the second rotating shaft is connected with the second rotating seat, the other end of the second rotating shaft penetrates through the second cam, the other end of the first cam support and the other end of the second cam support, springs are sleeved on the first rotating shaft and the second rotating shaft, and the springs are located between the first cam support and the second cam support.

Specifically, in the second rotating mechanism, two cams are arranged at intervals on each swing arm, a first cam support and a second cam support are respectively arranged to be in concave-convex fit with the cams, and a spring is arranged between the first cam support and the second cam support, so that the first swing arm and the second swing arm provide a rotation damping force of the first swing arm and the second swing arm through the cams in the synchronous rotation process, and as two ends of the spring are limited by the cams on the first swing arm and the second swing arm, no clamp spring support is required to be additionally arranged, and the space of the folding terminal in the axial direction (width direction) is further saved.

In some possible implementations of the second aspect, a first cam is disposed on a first swing arm of the second rotation mechanism, a second cam is disposed on a second swing arm of the second rotation mechanism, and the first cam is disposed corresponding to the second cam;

the second rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a cam bracket and a third supporting frame, wherein the cam bracket and the third supporting frame extend along a first direction and are arranged at intervals along an axial direction, and the first direction is perpendicular to the axial direction;

one end of the cam support is in concave-convex fit with the first cam, the other end of the cam support is in concave-convex fit with the second cam, a clamp spring support is arranged on one side, far away from the cam support, of the third support frame along the axial direction, and the clamp spring support extends along the first direction;

one end of the first rotating shaft is connected with the first rotating seat, and the other end of the first rotating shaft sequentially penetrates through the first cam, one end of the cam support, one end of the third support frame and one end of the clamp spring support;

one end of the second rotating shaft is connected with the second rotating seat, and the other end of the second rotating shaft penetrates through the second cam, the other end of the cam bracket, the other end of the third supporting frame and the other end of the clamp spring bracket;

and springs are sleeved on the first rotating shaft and the second rotating shaft, and are positioned between the cam bracket and the third supporting frame.

In some possible implementations of the second aspect, the second rotation mechanism further includes a first fixing frame, and one end of the gear set is rotatably connected to the first fixing frame.

Specifically, the second rotating mechanism further includes a first supporting frame, the first supporting frame and the first fixing frame are disposed at two sides of the gear set along an axial direction (i.e. a Z direction mentioned in the following embodiments) at intervals, the second end of the gear set in the axial direction is rotationally connected to the first fixing frame, and the first end of the gear set in the axial direction is rotationally connected to the first supporting frame with an end portion of the first/second rotating shaft (or a rotating shaft of the first/second rotating seat end portion) on the same side, so that the first swing arm and the second swing arm can rotate around the first axis and the second axis respectively. Further, the first fixing frame extends along the first direction, and the first rotating shaft and the second rotating shaft are fixedly connected with the first fixing frame respectively.

Drawings

Fig. 1a shows a first schematic view of an unfolded state of a folding mobile phone according to an embodiment of the present application;

fig. 1b shows a second schematic view of an unfolded state of a folding mobile phone according to an embodiment of the present application;

fig. 1c shows a schematic diagram of a folding state of a folding mobile phone according to an embodiment of the present application;

fig. 2a shows a schematic perspective view of a rotating mechanism according to a first embodiment of the present application;

FIG. 2b shows a top view of a rotary mechanism according to a first embodiment of the present application;

FIG. 2c shows a side view of a rotating mechanism in accordance with one embodiment of the present application;

FIGS. 3a and 3b are schematic perspective views showing the first swing arm of the first embodiment of the present application at two different angles;

FIG. 4a shows a top view of a first swing arm in accordance with the first embodiment of the present application;

FIG. 4b shows a side view of a first swing arm in accordance with the first embodiment of the present application;

FIG. 5 shows a cross-sectional view of FIG. 4a along the direction D-D;

fig. 6 is a schematic perspective view of a first shaft according to a first embodiment of the present application;

FIG. 7 shows a cross-sectional view of a first swing arm assembled with a first shaft in accordance with a first embodiment of the present application;

fig. 8 is a schematic perspective view showing a rotating mechanism in a second embodiment of the present application;

FIG. 9 shows a top view of a rotating mechanism in a second embodiment of the present application;

fig. 10a and 10b are schematic perspective views of a first swing arm according to a second embodiment of the present application at two different angles;

FIG. 11 shows a top view of a first swing arm in a second embodiment of the present application;

FIG. 12 shows a cross-sectional view of FIG. 11 taken along the direction E-E;

fig. 13 is a schematic perspective view of a first rotating shaft in a second embodiment of the present application;

Fig. 14 is a schematic perspective view showing a rotating mechanism in a third embodiment of the present application;

FIG. 15 shows a top view of a turning mechanism in a third embodiment of the present application;

FIGS. 16a and 16b are schematic perspective views showing the first swing arm of the third embodiment of the present application at two different angles;

FIG. 17 shows a top view of a third embodiment of the present application with a first swing arm and first shaft assembled;

FIG. 18 shows a cross-sectional view taken along the direction F-F of FIG. 17;

fig. 19 is a schematic perspective view showing a rotation mechanism in a fourth embodiment of the present application;

FIG. 20 shows a top view of a turning mechanism in a fourth embodiment of the present application;

fig. 21a and 21b are schematic perspective views showing the first swing arm of the fourth embodiment of the present application at two different angles;

FIG. 22a is a schematic view of another embodiment of the present application in a folding cellular phone;

FIG. 22b is a schematic perspective view of another embodiment of the present application;

FIG. 23 illustrates a top view of another rotary mechanism according to an embodiment of the present application;

FIG. 24 is a perspective view of a first swing arm of another rotary mechanism according to an embodiment of the present application;

fig. 25 shows a second perspective view of a first swing arm of another rotary mechanism according to an embodiment of the present application.

Reference numerals: 1-folding a mobile phone; 100-a rotating mechanism; 110-a first swing arm; 111-a first rotating seat; 1111—a first gear tooth; 1112-a first shaft hole; 11121-a first portion of a first shaft bore; 11122-a second portion of the first shaft bore; 1112 a-a first shaft hole; 1113-pin holes; 1114—a first rotation axis; 112-a first cam; 113-a first swing arm body; 120-a second swing arm; 121-a second rotating seat; 1211-second gear teeth; 130-gear set; 131-a first gear; 132-a second gear; 141-a first rotating shaft; 1411-a first portion of a first shaft; 1412—a second portion of the first shaft; 1413-snap cap; 1414-thread structure; 142-a second spindle; 151-a first cam carrier; 152-a second cam carrier; 160-a spring; 171-a first mount; 172-a second fixing frame; 181-a first support frame; 182-a third support frame; 183-a second support frame; 190-jump ring support; 200-a first body; 300-a second body; 400-flexible screen; 500-auxiliary rotating mechanism; 510-a first secondary swing arm; 511-a first screw; 5111—a first thread; 5112-a first support shaft; 512-first secondary cam; 5121-groove; 513-a first secondary swing arm body; 520-a second secondary swing arm; 521-second screw; 530-a screw set; 531-a third screw; 532-fourth screw; 541-a first secondary spool; 542-a second secondary shaft; 550-a secondary cam carrier; 560-secondary springs; 570-auxiliary fixing bracket; 581-a first secondary support frame; 582-second secondary support frame; 583-a third secondary support; 590-auxiliary clamp spring bracket.

Detailed Description

Specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The application provides a rotating mechanism which can be applied to a folding terminal. Specifically, the folding terminal includes, but is not limited to, a folding mobile phone, a tablet pc (tablet personal computer), an electronic book reader, a laptop (laptop), a personal digital assistant (personal digital assistant, PDA), a personal computer, a notebook (notebook), a vehicle-mounted device, a wearable device (e.g., a watch), a box, and other electronic devices that need to be opened and closed synchronously.

For convenience of explanation, the folding mobile phone is taken as an example of a folding terminal, and the folding mobile phone of the present application is described in the following specific embodiments.

Fig. 1a is a perspective view illustrating an unfolded state of a folding mobile phone according to an embodiment of the present application. Fig. 1b shows a front schematic view of a folded mobile phone according to an embodiment of the present application in an unfolded state. Fig. 1c is a schematic perspective view illustrating a folded state of a folded mobile phone according to an embodiment of the present application.

For convenience of the following description, before describing the specific structure of the folding cellular phone 1, the present application defines an X direction (as a first direction), a Y direction, and a Z direction (as an axial direction) in conjunction with fig. 1a to 1 c. As shown in fig. 1a to 1c, the X direction is a length direction of the folding mobile phone 1, wherein the length direction may be a length direction of the flexible screen 400 (mentioned below), and may be understood as a direction in which a user holds the folding mobile phone; the Y direction is the thickness direction of the folding mobile phone 1; the Z direction is the width direction of the folding mobile phone. The width direction may be the width direction of the flexible screen 400, and may be understood as a direction perpendicular to the direction in which the user holds the flexible screen 400 in the plane. The following is an exemplary description of the X-direction, Y-direction, and Z-direction being perpendicular to each other.

As can be seen in fig. 1a to 1c, the folding mobile phone 1 includes a rotating mechanism 100, a first body 200, a second body 300, and a flexible screen 400. The first body 200 and the second body 300 are respectively disposed at opposite sides of the rotating mechanism 100 along the X direction, and the first body 200 and the second body 300 are respectively connected with the rotating mechanism 100 and can rotate relatively. Illustratively, the first body 200 and the second body 300 are internally provided with electronic components, such as a battery, a control circuit board, and the like.

The flexible screen 400 is fixed to the first body 200 and the second body 300, and the rotating mechanism 100, the first body 200, and the second body 300 are illustratively covered by the flexible screen 400. The first body 200 and the second body 300 relatively rotate through the rotating mechanism 100 and can drive the flexible screen 400 to move, so that the flexible screen 400 is in a bending state or an unfolding state, and the folding mobile phone 1 is switched between the folding state and the unfolding state. Specifically, in some embodiments, the first body 200 and the second body 300 may be rotated left and right relative to each other by the rotation mechanism 100 to unfold or fold the flexible screen. Alternatively, in some other embodiments, the first body 200 and the second body 300 may also be rotated up and down relative to each other by the rotation mechanism 100 to fold or unfold the flexible screen. The relative rotation direction of the first body 200 and the second body 300 is not limited in this application.

Fig. 2a to 2c are schematic diagrams illustrating the rotating mechanism 100 when the folding mobile phone is in a folded state in some embodiments. As can be seen in the above figures, in some embodiments, the rotation mechanism 100 includes a first swing arm 110, a second swing arm 120, and a gear set 130. The first swing arm 110 and the second swing arm 120 are disposed on opposite sides of the gear set 130 along the X direction, respectively, and it is also understood that at least a portion of the gear set 130 is disposed between the first swing arm 110 and the second swing arm 120 along the X direction.

As shown in fig. 2b, a plurality of first gear teeth 1111 are provided on the first swing arm 110, a plurality of second gear teeth 1211 are provided on the second swing arm 120, and the first gear teeth 1111 and the second gear teeth 1211 are engaged and connected through the gear set 130, so that the first swing arm 110 and the second swing arm 120 can synchronously and reversely rotate along the Z direction.

With continued reference to fig. 2B, specifically, the first swing arm 110 rotates about the first axis L1 in the a direction, the second swing arm 120 rotates about the second axis L2 in the B direction, the first axis L1 and the second axis L2 extend along the Z direction, and the a direction and the B direction are opposite in reverse, for example, the a direction is clockwise, and the B direction is counterclockwise. Although the figures herein illustrate the direction a as clockwise and the direction B as counterclockwise, in some other embodiments of the present application, the direction a may be counterclockwise and the direction B may be clockwise. The rotation direction may be determined according to the setting positions of the first swing arm 110 and the second swing arm 120 in the folding mobile phone and the folding direction of the folding mobile phone, which is not limited herein.

In the folding mobile phone 1, the first swing arm 110 is connected with the first body 200 and can drive the first body 200 to move; the second swing arm 120 is connected to the second body 300 and can drive the second body 300 to move. Through the movement of the first swing arm 110 and the second swing arm 120, the relative rotation of the first body 200 and the second body 300 can be realized, so that the first body 200 and the second body 300 drive the flexible screen 400 to move, the flexible screen 400 can be dynamically switched between a bending state and an unfolding state, and further the folding mobile phone 1 is dynamically switched between a folding state or an unfolding state, and the folding function of the folding mobile phone 1 is realized.

Illustratively, when the folding cellular phone 1 is in the folded state, the flexible screen 400 is bent, and as shown in fig. 1c, the bent flexible screen 400 is shaped like a "U". When the folding mobile phone 1 is in the unfolded state, the flexible screen 400 is flattened, as shown in fig. 2a and 2b, and the first swing arm 110 and the second swing arm 120 of the rotating mechanism 100 are in a shape like a straight line, so that the flexible screen (not shown) is in a flattened state.

The existing rotating mechanism mainly comprises a worm gear, a gear rack, a spiral groove structure and the like, however, the structures have the problems of large manufacturing difficulty or large body type, and are not beneficial to the production of folding terminals and the light and thin products. For example, the worm gear structure is complex to process (5-axis machine is needed to process), the cost is high, the middle turbine is needed to be at the middle position in the Y direction, the requirement on the space is high, and the production is not facilitated; the rack and pinion structure occupies z-direction space, so that the folded terminal product cannot be made smaller and thinner; the spiral groove structure comprises a male head on the side of the swing arm, a female head on the side of the synchronous slide block and a male head on the side of the synchronous slide block, and the female head on the side of the swing arm, wherein the two structures have the problems of high Z-direction space requirement and high processing cost.

In order to solve the problem, the application provides a rotating mechanism, and this rotating mechanism includes first swing arm, second swing arm and gear train, all is provided with the teeth of a cogwheel on first swing arm and the second swing arm, and the teeth of a cogwheel on two swing arms pass through gear train meshing and connect, make first swing arm and second swing arm can synchronous reverse rotation. And with tooth structure integration on the swing arm, can simplify rotary mechanism's structure, and then make this rotary mechanism can fully place in the narrow and small space in the casing, be favorable to realizing that folder size is done little and is done thinly, be favorable to folding terminal's miniaturization. In addition, the rotating mechanism is simple and compact in structure, low in cost, easy to manufacture and wide in application range.

The turning mechanism of the embodiment of the present application will be described in detail with reference to the accompanying drawings. It should be noted that in the present application, the first swing arm and the second swing arm have the same structure, and the first swing arm and the second swing arm are symmetrically arranged. The application describes the specific structure of the first swing arm by taking the first swing arm as an example, and the structure of the second swing arm is not repeated.

[ embodiment one ]

Fig. 2a, 2b and 2c show a perspective view, a top view and a side view, respectively, of the turning mechanism 100 in the first embodiment of the present application. As shown in fig. 2a to 2c, the rotating mechanism 100 includes a first swing arm 110, a second swing arm 120, and a gear set 130.

Wherein the first swing arm 110 is capable of being rotated about a first axis (dashed line L in FIG. 2b ₁ Shown) is rotatable, the second swing arm 120 can rotate about a second axis (dashed line L in FIG. 2 b) ₂ Shown) rotates. The first axis and the second axis are parallel, and the direction of rotation of the first swing arm 110 (shown in the direction a in fig. 2 a) and the direction of rotation of the second swing arm 120 (shown in the direction B in fig. 2B) are opposite.

Fig. 3a and 3b show perspective views of the first swing arm 110 in the first embodiment of the present application. As can be seen from fig. 2b, 3a and 3b, the first swing arm 110 includes a first rotating base 111, a first swing arm body 113, and two first cams 112 spaced apart in the Z direction. Specifically, the first rotating seat 111 and the two first cams 112 are connected to the first swing arm body 113, and are disposed on a side of the first swing arm body 113 facing the gear set 130. The first rotating seat 111 is provided with a plurality of first gear teeth 1111 in the circumferential direction (i.e. in the direction C in fig. 3 a), and the first gear teeth 1111 are also provided facing the gear set 130 side.

Through set up a plurality of first teeth of a cogwheel 1111 and a plurality of second teeth of a cogwheel 1211 respectively on first swing arm 110 and second swing arm 120 to utilize gear train 130 to make the teeth of a cogwheel meshing on the two swing arms connect, simplified the structure of rotary mechanism 100, can make this rotary mechanism 100 fully place in the narrow and small space in the casing, be favorable to realizing that the folder size is done to make thinly, be favorable to folding terminal's miniaturization.

Fig. 4a and 4b show a top view and a side view, respectively, of the first swing arm 110 in the present embodiment, and as can be seen from fig. 3a, 3b, 4a and 4b, the first rotating base 111 is a cylinder extending along the Z direction, and a part of the first rotating base 111 in the C direction is provided with first gear teeth 1111, and another part is not provided with gear teeth, so that the processing of the swing arm can be facilitated. Specifically, as shown in fig. 4b, on the circumferential surface of the first rotating seat 111 in 360 ° in the circumferential direction, the first gear teeth 1111 may be provided on the 180 ° semicircular circumferential surface of the second rotating seat 121 facing the second swing arm 120, and no gear teeth may be provided on the other semicircular circumferential surface. Similarly, the second gear teeth 1211 on the second swing arm 120 may be disposed such that the second gear teeth 1211 are disposed on a 180 ° semicircular circumferential surface of the first swing arm 110 facing the second rotation seat 111 on a circumferential surface of 360 ° of the second rotation seat 121, and the second gear teeth 1211 are not disposed on the other semicircular circumferential surface. The provision of the half circumference gear teeth can ensure that the first gear teeth 1111 and the second gear teeth 1211 are sufficiently engaged through the gear set 130, and can also facilitate the machining of the gear tooth structure on the first swing arm 110 and the second swing arm 120.

With continued reference to fig. 2b, the rotating mechanism 100 further includes a first rotating shaft 141 and a second rotating shaft 142, where the first rotating shaft 141 and the second rotating shaft 142 both extend along the Z direction and are disposed at intervals along the X direction. Specifically, the first axis is the axis of the first rotating shaft 141, and the second axis is the axis of the second rotating shaft 142. The first rotating shaft 141 respectively penetrates through the two first cams 112 and the first rotating seat 111 on the first swing arm 110 and then extends out, so that the first swing arm 110 can rotate along the direction A around the first rotating shaft 141; the second rotation shaft 142 extends through two second cams on the second swing arm 120 (the second cams on the second swing arm 120 have the same structure as the first cams 112 on the first swing arm 110) and the second rotation seat 121, respectively, so that the second swing arm 120 can rotate around the second rotation shaft 142 in the direction B.

Fig. 5 is a sectional view of the first rotating seat 111 and the first cam 112. Fig. 6 is a perspective view of the first rotation shaft 141. As can be seen from fig. 5 and 6, the first rotating seat 111 is internally provided with a first shaft hole 1112 through which the first rotating shaft 141 passes, and the first shaft hole 1112 is stepped in the Z direction, and correspondingly, a corresponding portion of the first rotating shaft 141 is stepped in the Z direction.

That is, in the Z direction, the first shaft hole 1112 includes a first portion 11121 and a second portion 11122. Illustratively, the first portion 11121 of the first shaft aperture 1112 is proximate to the end center of the first body 200 in the width direction. The first gear teeth 1111 are circumferentially disposed about the first portion 11121 of the first shaft aperture 1112, the first portion 11121 of the first shaft aperture 1112 having a smaller aperture than the second portion 11122 of the first shaft aperture 1112. Similarly, in the Z direction, the first shaft 141 also includes a first portion 1411 and a second portion 1412, the first portion 1411 of the first shaft 141 is near the middle frame end of the first machine body 200 in the width direction, the diameter of the first portion 1411 of the first shaft 141 is smaller than the diameter of the second portion 1412 of the first shaft 141, and as shown in fig. 7, the first portion 11121 of the first shaft hole 1112 is sleeved on the first portion 1411 of the first shaft 141, and the second portion 11122 of the first shaft hole 1112 is sleeved on the second portion 1412 of the first shaft 141.

Specifically, when the size of the folding machine is thinned, the size of the first rotating seat 111 is correspondingly reduced, the gear teeth on the first rotating seat are also correspondingly reduced, after the stepped hole and the stepped shaft are added, the thickness of the first gear teeth 1111 part is correspondingly increased, and the diameter of the first rotating shaft 141 is correspondingly reduced, so that the strength of each part can be balanced, and the reliability of the folding machine is ensured; further challenges may also be presented to the size of the folder, making the folder terminals lighter and thinner.

Specifically, the structure of the second rotating shaft 142 is the same as that of the first rotating shaft 141, and the connection mode of the second rotating shaft 142 and the second swing arm 120 is also the same as that of the first rotating shaft 141 and the first swing arm 110, which is not described herein.

Specifically, with continued reference to fig. 2a and 2b, the first gear teeth 1111 on the first swing arm 110 are opposite the second gear teeth 1211 on the second swing arm 120 such that the first gear teeth 1111 and the second gear teeth 1211 are meshingly connected by the gear set 130. The gear set 130 includes a first gear 131 and a second gear 132. In the X direction, the first gear 131 and the second gear 132 are disposed between the first gear teeth 1111 and the second gear teeth 1211, and the first gear teeth 1111, the first gear 131, the second gear 132 and the second gear teeth 1211 are sequentially engaged in driving connection.

Referring to fig. 2a and 2b, the rotating mechanism 100 further includes first and second cam brackets 151 and 152 disposed at intervals in the Z direction, wherein the first and second cam brackets 151 and 152 each extend in the X direction. The first cam bracket 151 is engaged with one of the first cam 112 and one of the second cam recesses and projections of the second swing arm 120 of the first swing arm 110 at both ends in the X direction, and the second cam bracket 152 is engaged with the other of the first cam 112 and the other of the second cam recesses and projections of the first swing arm 110 and the other of the second cam recesses and projections of the second swing arm 120 at both ends in the X direction. Specifically, as shown in fig. 2b, at least one groove is disposed on a side of the first cam 112 on the first swing arm 110 facing the first cam bracket 151, a protrusion matching the groove is disposed at a corresponding position of the first cam bracket 151, and the first cam 112 and the first cam bracket 151 are connected in a concave-convex fit by the fit of the protrusion and the groove. The structure of the second cam bracket 152 is similar to that of the first cam bracket 151, and will not be described again.

As shown in fig. 2b, a spring 160 is further provided between the first cam bracket 151 and the second cam bracket 152 in the Z direction. Specifically, the number of the springs 160 is plural, and the springs may be respectively sleeved on the first rotating shaft 141 and the second rotating shaft 142. That is, each spring 160 is penetrated by the corresponding first and second rotating shafts 141 and 142, respectively, and the spring 160 is slidable along the Z direction; one end of each spring 160 is in contact with the first cam bracket 151 and the other end is in contact with the second cam bracket 152, so that the springs 160 can provide a rotation damping force of the swing arms through the cams during the synchronous rotation of the first swing arm 110 and the second swing arm 120.

By arranging two first cams 112/second cams on the first swing arm 110/second swing arm 120 at intervals along the Z direction to limit the spring 160, the spring 160 can be limited without adding additional snap spring brackets 190, so that the axial space is saved.

Further, with continued reference to fig. 2b, the rotating mechanism 100 further includes a first support bracket 181, a first mount 171, and a second mount 172. Specifically, the first fixing frame 171 and the first supporting frame 181 are disposed at opposite sides of the gear set 130 in the Z direction at intervals, the first supporting frame 181 is disposed at one side of the end portion of the rotating mechanism 100 near the middle frame, and the second fixing frame 172 is disposed at the other side of the end portion of the rotating mechanism 100 far from the middle frame. The first rotating shaft 141 sequentially passes through the first supporting frame 181, the first rotating seat 111, the first fixing frame 171, the first cam 112, the first cam bracket 151, the spring 160, the second cam bracket 152, the other first cam 112 and the second fixing frame 172 along the Z direction and then extends out; similarly, the second rotating shaft 142 sequentially passes through the first supporting frame 181, the second rotating seat 121, the first fixing frame 171, the second cam, the first cam bracket 151, the spring 160, the second cam bracket 152, the other second cam and the second fixing frame 172 along the Z direction and then extends.

Further, referring to fig. 6, a locking cap 1413 is further disposed at an end of the first shaft 141, and the locking cap 1413 is configured to be locked with an end surface of the second fixing frame 172 after the first shaft 141 passes through the second fixing frame 172, so as to limit the first shaft 141 and prevent the first shaft 141 from moving along the Z direction toward the gear set 130.

The first supporting frame 181 extends along the X direction, and is provided with four through holes arranged at intervals along the X direction, and the first ends of the first rotating shaft 141, the first gear 131, the second gear 132 and the second rotating shaft 142, which are positioned on the same side, are all arranged in the corresponding through holes on the first supporting frame 181 in a penetrating manner. The first fixing frame 171 is provided with a first mounting hole facing one side of the first gear 131 and the second gear 132, and the second ends of the first gear 131 and the second gear 132 are inserted into the first mounting hole on the first fixing frame 171.

Further, the first fixing frame 171 and the second fixing frame 172 are further provided with second mounting holes for fixing the first rotating shaft 141 and the second rotating shaft 142, respectively, on both sides in the X direction, and the first rotating shaft 141 and the second rotating shaft 142 are fixedly connected to the rotating mechanism 100 through the second mounting holes on the first fixing frame 171 and the second mounting holes on the second fixing frame 172.

[ example two ]

Fig. 8 and 9 show a perspective view and a plan view, respectively, of the turning mechanism 100 in the second embodiment. Fig. 10a to 12 show a schematic structural view of the first swing arm 110 in the second embodiment. Fig. 10a and 10b are perspective views of the first swing arm 110 at two angles, fig. 11 is a top view of the first swing arm 110, and fig. 12 is a cross-sectional view of the first rotating seat 111 and the first cam 112 on the first swing arm 110.

Referring to fig. 2a and 2b of the first embodiment and fig. 8 and 9 of the second embodiment, it can be seen that the rotating mechanism 100 of the second embodiment and the first embodiment each includes a first swing arm 110, a second swing arm 120 and a gear set 130, the first swing arm 110 and the second swing arm 120 are respectively provided with a first gear tooth 1111 and a second gear tooth 1211, the rotating modes of the first swing arm 110 and the second swing arm 120, the arrangement positions and arrangement modes of the first gear tooth 1111 and the second gear tooth 1211, the specific structure of the gear tooth set 130 and the connection mode of the gear tooth set 130 and the first gear tooth 1111 and the second gear tooth 1211 are the same. The differences between the first embodiment and the second embodiment are not described in detail.

Referring to fig. 4a and 5 of the first embodiment and fig. 10a to 12 of the second embodiment, the first swing arm 110 of the second embodiment is different from the first swing arm 110 of the first embodiment in structure. The method comprises the following steps:

The first shaft hole 1112 provided inside the first rotating seat 111 in the first swing arm 110 of the first embodiment is in the form of a stepped hole, and the first shaft hole 1112 penetrates the rotating seat 111 along the Z direction. Correspondingly, the first rotating shaft 141 of the first embodiment is also provided with a stepped shaft, the first rotating shaft 141 penetrates through and extends out of the first rotating seat 111, and the first rotating shaft and the first rotating seat are in rotary connection, and no additional rotating shaft is arranged at the end part of the first rotating seat 111.

In the second embodiment, referring to fig. 11 and 12, the first shaft hole 1112a provided inside the first rotating seat 111 in the first swing arm 110 is in the form of a straight hole, not a stepped hole, and the first shaft hole 1112a does not penetrate the first rotating seat 111, but is provided at an end of the first rotating seat 111 away from the gear set 130. Therefore, the first rotating shaft 141 in the second embodiment is not provided with a stepped shaft and penetrates the first rotating seat 111, but is mounted inside the first rotating seat 111, and the first rotating shaft 141 is fixedly connected with the first swing arm 110.

Specifically, as shown in fig. 12, a pin hole 1113 is provided in a side wall of the first rotation seat 111, and the pin hole 1113 penetrates the first shaft hole 1112 a. After the first shaft 141 is inserted into the first shaft hole 1112a, the first shaft 141 and the first rotating seat 111 may be fixed by a pin passing through the pin hole 1113, so that the first shaft 141 and the first swing arm 110 are fixedly connected. Specifically, the fixed connection between the first pivot shaft 141 and the first swing arm 110 may be achieved by spot welding or the like, or the first swing arm 110 and the first pivot shaft 141 may be formed as an integral structure, which is not limited herein.

Fig. 13 is a perspective view of the first rotating shaft 141 in the second embodiment, and fig. 11, 12 and 13 show that the first shaft hole 1112a in the first rotating seat 111 may be threaded, the corresponding end portion of the first rotating shaft 141 is provided with a threaded structure 1414, and the threaded structure is adopted to facilitate screwing the first rotating shaft 141 into the first shaft hole 1112a in the first rotating seat 111, so that the fixed connection between the first rotating shaft 141 and the first rotating seat 111 is further enhanced.

Further, with continued reference to fig. 10a and 12, in order to facilitate the rotation of the first swing arm 110 about the first axis, one end of the first gear tooth 1111 of the first rotating seat 111 is further provided with a first rotation shaft 1114, and the first rotation shaft 1114 extends in the Z direction and is coaxial with the first rotation shaft 141. Specifically, the first rotary shaft 1114 is disposed at one end of the first rotary base 111 near the end of the middle frame in the Z direction, and the first shaft hole 1112a is disposed inside the other end of the first rotary base 111 in the Z direction, that is, the portion where the first gear teeth 1111 are located is not provided with a hole structure, so that the strength of the portion of the first gear teeth 1111 can be further improved.

That is, in the second embodiment, the first rotating shaft 141 passes through the first cam 112 on the first swing arm 110, then extends into the first shaft hole 1112a in the first rotating seat 111 and is fixedly connected with the first rotating seat 111; a first rotation shaft at one end of the first rotation seat 111 is rotatably connected to the first supporting frame 181 at the side, so that the first swing arm 110 can rotate around the first rotation shaft 141 along the direction a; similarly, the second rotating shaft 142 passes through the second cam on the second swing arm 120 (specifically, in this embodiment, the second cam on the second swing arm 120 has the same structure as the first cam 112 on the first swing arm 110) and then extends into the second shaft hole in the second rotating seat 121 and is fixedly connected to the second rotating seat 121, and the second rotating shaft at one end of the second rotating seat 121 is rotatably connected to the first supporting frame 181 disposed at the side, so that the second swing arm 120 can rotate around the second rotating shaft 142 along the direction B.

In the second embodiment, the structure that the stepped hole in the rotating seat and the corresponding part of the rotating shaft are arranged as stepped shafts is eliminated, instead, the rotating shaft is additionally arranged at the end part of the gear teeth, the rotating seat is supported by the rotating shaft to rotate, and in order to ensure the reliability of the integral structure of the rotating shaft and the swing arm, the rotating and swing arm are arranged to be integrally connected, so that the strength of each part can be ensured, and the reliability of the folding machine is further ensured; it may also facilitate further challenges in the size of the folder, making the folder lighter and thinner that the terminal can be made.

Further, the number of cams on the swing arm in the second embodiment is also different from that in the first embodiment. Taking the first swing arm 110 as an example, referring to fig. 3a and fig. 10a, unlike the two first cams 112 that are disposed on the first swing arm 110 at intervals along the Z direction in the first embodiment, only one first cam 112 is disposed on the first swing arm 110 in the second embodiment. Specifically, the first cam 112 is located at a side of the first rotating base 111 away from the gear set 130, and a through hole for the first rotating shaft 141 to pass through is also provided in the first cam 112.

A cam is provided corresponding to the swing arm, and the swing arm is fixedly connected to the rotation shaft, so that the composition of the rotation mechanism 100 in the second embodiment is also different from that of the rotation mechanism 100 in the first embodiment. With continued reference to fig. 2b and 9, the rotating mechanism 100 of the second embodiment has fewer second cam brackets 152 disposed on a side far from the gear set 130 than the rotating mechanism 100 of the first embodiment, instead, a third supporting bracket 182 and a clamping spring bracket 190 are added to limit the end of the spring 160 on the side, so that the spring 160 can provide a rotation damping force of the swing arms through the cam and the clamping spring bracket 190 during the synchronous rotation of the first swing arm 110 and the second swing arm 120. And since the first and second rotating shafts 141 and 142 are fixedly connected to the first and second swing arms 110 and 120 in the present embodiment, the first and second rotating shafts 141 and 142 are rotatably connected to the first fixing frame 171 in the second embodiment.

That is, the number of cams on the swing arm is reduced by adding the clamp spring support 190, so that the structure of the swing arm can be simplified, and the swing arm production is facilitated.

[ example III ]

It should be noted that, in the third embodiment, the rotating mechanism 100 has the same structure as the rotating mechanism 100 of the second embodiment, and for convenience of description, the same structure parts of the third embodiment and the second embodiment are not described again, and only the structure parts of the third embodiment different from the second embodiment are described.

Fig. 14 and 15 show a perspective view and a plan view, respectively, of the turning mechanism 100 in the third embodiment. Fig. 16a and 16b are schematic structural views of the first swing arm 110 in the third embodiment. As shown in fig. 14 to 16b, the third embodiment is different from the second embodiment in that the first rotating base 111 of the first swing arm 110 has a different structure, in the third embodiment, both ends of the first gear teeth 1111 of the first rotating base 111 are provided with the first rotating shaft 114, and corresponding to the structure, in the third embodiment, the rotating mechanism 100 further includes a second supporting frame 183 additionally provided between the first fixing frame 171 and the gear set 130. The specific description is as follows.

As shown in fig. 16a and 16b, both ends of the first gear teeth 1111 of the first rotary seat 111 in the Z direction are provided with first rotary shafts 1114, respectively. Each of the first rotary shafts 1114 extends in the Z direction and is coaxial with the first rotary shaft 141.

Specifically, the second support frame 183 extends in the X direction. The first gear tooth 1111 includes a first end and a second end, wherein the first end is defined as an end facing the first rotation shaft 141, and the second end is defined as an end far from the first rotation shaft 141. As shown in fig. 17 and 18, the second ends of the first gear teeth 1111 are respectively sleeved in one end of the second support frame 183 in the X direction and are rotatably connected to the second support frame 183, and a certain gap H is provided between the first rotation shaft 1114 and the first rotation shaft 141 in the Z direction, so as to avoid unnecessary wear caused by contact between the first rotation shaft 1114 and the first rotation shaft 141.

Similarly, the second gear teeth 1211 on the second swing arm 120 also include a first end and a second end, wherein the first end is defined as an end facing the second rotation axis 142, and the second end is defined as an end remote from the second rotation axis 142. The second rotating shaft disposed at the second end of the second gear teeth 1211 and the end of the second rotating shaft 142 are both sleeved in the other end of the second supporting frame 183 in the X direction and rotationally connected to the second supporting frame 183, and further, a certain gap H is formed between the second rotating shaft and the second rotating shaft 142 in the Z direction, so as to avoid unnecessary wear caused by contact between the second rotating shaft and the second rotating shaft 142.

Specifically, when the size of the folding machine is thinned, the size of the rotating seat on the swing arm is correspondingly reduced, and the gear teeth on the swing arm are also correspondingly reduced, in the third embodiment, by additionally arranging rotating shafts at the two ends of the gear teeth of the swing arm rotating seat, the first gear teeth 1111/the second gear teeth 1211 can rotate around the rotating shafts, so that the first rotating shaft 141 or the second rotating shaft 142 does not need to pass through the corresponding first gear teeth 1111 or the second gear teeth 1211, the thickness of the gear teeth is ensured, the strength of each part is improved, and the reliability of the folding machine is ensured; further challenges may also be presented to the size of the folder, making the folder terminals lighter and thinner.

[ example IV ]

Fig. 19 and 20 show a perspective view and a plan view, respectively, of the turning mechanism 100 in the fourth embodiment. Fig. 21a and 21b show schematic views of the first swing arm 110 in the fourth embodiment.

As can be seen from fig. 21a and 21b, the swing arm in the fourth embodiment is different from the swing arm in the third embodiment in structure, specifically, the structure of the rotating seat in the swing arm in the fourth embodiment is the same as the structure of the rotating seat in the swing arm in the third embodiment, but the arrangement of the cam on the swing arm is different from that in the third embodiment. Also taking the first swing arm 110 as an example, as shown in fig. 21, in the fourth embodiment, two first cams 112 are disposed on the first swing arm 110 at intervals along the Z direction, and both the first cams 112 are located at a side of the first rotating seat 111 away from the gear set 130.

The composition of the turning mechanism 100 in the fourth embodiment is also different from that of the turning mechanism 100 in the third embodiment in that two cams are provided corresponding to the swing arms. Referring to fig. 15 and 20, the rotating mechanism 100 of the fourth embodiment has the same structure of the components (specifically including the first cam bracket 151, the first fixing bracket 171, the second supporting bracket 183, the rotating seat on each swing arm, the gear set 130, and the first supporting bracket 181) located below the spring 160, and the components located above the spring 160 are different from those of the rotating mechanism 100 of the third embodiment.

Since in the fourth embodiment, two first cams 112/second cams are disposed on the first swing arm 110/second swing arm 120 at intervals along the Z direction to limit the end of the spring 160, the third support frame 182 and the jump ring support 190 in the third embodiment are not required to limit the end of the spring 160, instead, in the fourth embodiment, the second cam support 152 is disposed at the cam position to be matched with the cams on the first swing arm 110 and the second swing arm 120 in a concave-convex manner to limit the end of the spring 160, which can further save the axial space of the rotation mechanism 100. Specifically, the structure of the second cam bracket 152 is the same as that of the second cam bracket 152 in the first embodiment, and will not be described herein.

The rotating mechanism 100 provided in the first to fourth embodiments can be used as the main rotating mechanism in the folding mobile phone 1, and at this time, the first swing arm and 110 second swing arm 120 in the rotating mechanism 100 are also used as the two main swing arms in the folding mobile phone 1, respectively.

The present application also provides another rotating mechanism (also referred to as a secondary rotating mechanism 500), and referring to fig. 22a, 22b and 23, the secondary rotating mechanism 500 includes a first swing arm (also referred to as a first secondary swing arm 510), a second swing arm (also referred to as a second secondary swing arm 520) and a screw set 530. As shown in fig. 22a, the sub rotation mechanism 500 may be used as a sub rotation mechanism in the folding cellular phone 1. Correspondingly, the first auxiliary swing arm 510 and the second auxiliary swing arm 520 in the auxiliary rotating mechanism 500 serve as two auxiliary swing arms of the folding mobile phone. The main rotating mechanism and the auxiliary rotating mechanism can be simultaneously arranged in the folding mobile phone so as to improve the folding performance of the folding mobile phone.

In the sub rotation mechanism 500, the first sub swing arm 510 is rotatable about a first axis (indicated by a broken line L1 'in fig. 23), and the second sub swing arm 520 is rotatable about a second axis (indicated by a broken line L2' in fig. 23). The first axis and the second axis are parallel, and the first sub swing arm 510 and the second sub swing arm 520 are opposite in rotation direction (indicated by the direction a' in fig. 23).

Specifically, the first axis L1 'in the sub-rotation mechanism 500 shown in fig. 22B and 23 coincides with the first axis L1 in the rotation mechanism 100 in the above embodiment, the second axis L2' in the sub-rotation mechanism 500 shown in fig. 22B and 23 coincides with the second axis L2 in the rotation mechanism 100 in the above embodiment, the rotation direction a 'of the first sub-swing arm 510 in the sub-rotation mechanism 500 shown in fig. 22B and 23 coincides with the rotation direction a of the first swing arm 110 in the rotation mechanism 100 in the above embodiment, and the rotation direction B' of the second sub-swing arm 520 in the sub-rotation mechanism 500 shown in fig. 22B and 23 coincides with the rotation direction B of the second swing arm 120 in the rotation mechanism 100 in the above embodiment.

Further, in the sub-rotation mechanism 500 shown in fig. 22b and 23, the first sub-swing arm 510 is provided with a first screw 511, the second sub-swing arm 520 is provided with a second screw 521, and the screw group 530 is provided between the first screw 511 and the second screw 521.

Specifically, as shown in fig. 23, the first screw 511 on the first sub-swing arm 510 is opposite to the second screw 521 on the second sub-swing arm 520, so that the first screw 511 and the second screw 521 are screw-coupled by the screw group 530. Screw set 530 includes a third screw 531 and a fourth screw 532. In the X direction, the third screw 531 and the fourth screw 532 are disposed between the first screw 511 and the second screw 521, and the first screw 511, the second screw 521, the third screw 531, and the fourth screw 532 are sequentially screw-connected. Further, the rotation directions of the first screw 511 and the second screw 521 are opposite, the rotation directions of the third screw 531 and the fourth screw 532 are opposite, and the rotation directions of the first screw 511 and the third screw 531 are the same, so that the synchronous reverse rotation of the first screw 511 and the second screw 521 is realized through the third screw 531 and the fourth screw 532, and the first auxiliary swing arm 510 and the second auxiliary swing arm 520 are further synchronously reversely rotated.

That is, the sub rotating mechanism 500 shown in fig. 22b and 23 simplifies the structure of the sub rotating mechanism 500 by providing the first screw 511 and the second screw 521 on the first sub swing arm 510 and the second sub swing arm 520, respectively, and screwing the screws on the two swing arms by the screw group 530, and the provision of the screws on the swing arms is easy to realize in terms of production, reducing the manufacturing cost. In addition, the screw structure is integrated on the swing arm, and the component parts of the auxiliary rotating mechanism 500 can be reduced, so that the auxiliary rotating mechanism 500 can be fully placed in a narrow space in the shell, the size of the folding machine is reduced, and the miniaturization of the folding terminal is facilitated.

In other embodiments of the present application, the first gear teeth 1111 disposed on the first swing arm 110, the second gear teeth 1211 disposed on the second swing arm 120, and the gear teeth set 130 disposed between the first gear teeth 1111 and the second gear teeth 1211 in the rotating mechanism 100 according to the first to fourth embodiments may be replaced with the first screw 511, the second screw 521, and the screw set 530, respectively, and other structures may not be changed.

Fig. 24 and 25 show perspective views of the first sub swing arm 510 of the sub swing mechanism 500 at two different angles in an embodiment of the present application. Referring to fig. 24 and 25, the first sub-swing arm 510 includes a first screw 511, a first sub-swing arm main body 513, and a first cam (also referred to as a first sub-cam 512). Specifically, the first screw 511 and the first sub-cam 512 are both connected to the first sub-swing arm main body 513, and are disposed on the side of the first sub-swing arm main body 513 facing the screw group 530. Further, the first screw 511 is provided to extend in the Z direction at an end of the first sub swing arm 510 opposite to the second sub swing arm 520. First screw 511 is provided with first thread 5111, and first thread 5111 is provided on first screw 511 in the circumferential direction (i.e., in the direction C' in fig. 24 and 25), and first thread 5111 is provided at least on the side of the screw facing screw group 530.

Further, the first screw 511 includes a main body portion and a first thread 5111 provided on the main body portion. The main body of the first screw 511 is a cylinder extending along the Z direction, and a part of the main body of the first screw 511 in the C' direction is provided with a first thread 5111, and the other part is not provided with the first thread 5111, so that the processing of the swing arm can be facilitated. Specifically, referring to fig. 25, on the circumferential surface of 360 ° in the circumferential direction of the main body portion of the first screw 511, a first screw 5111 may be provided on the 180 ° semicircular circumferential surface thereof facing the second screw 521, and the first screw 5111 may not be provided on the other semicircular circumferential surface. Likewise, the second screw 521 of the second sub-swing arm 520 may be provided such that the second screw 521 is provided on the circumferential surface of 360 ° in the circumferential direction of the subject portion of the second screw 521, and the second screw is not provided on the other circumferential surface of 180 ° facing the first screw 511. The provision of the half-circumference threads ensures that the first screw 511 and the second screw 521 are sufficiently engaged by the screw group 530, and also facilitates the processing of the screw structure on the first sub-swing arm 510 and the second sub-swing arm 520.

With continued reference to fig. 22b to 25, the secondary rotation mechanism 500 further includes a first rotation shaft (also referred to as a first secondary rotation shaft 541) and a second rotation shaft (also referred to as a second secondary rotation shaft 542), both of the first secondary rotation shaft 541 and the second secondary rotation shaft 542 extend in the Z direction, and both are disposed at intervals in the X direction. Specifically, the axis of the first sub-rotating shaft 541 coincides with the first axis, and the axis of the second sub-rotating shaft 542 coincides with the second axis. The first auxiliary rotating shaft 541 extends out through the first auxiliary cam 512 on the first auxiliary swing arm 510, so that the first auxiliary swing arm 510 can rotate around the first auxiliary rotating shaft 541 in the a' direction; the second sub-rotation shaft 542 extends through a second cam of the second sub-rotation arm 520 (which may also be referred to as a second sub-cam, and the second sub-cam on the second sub-rotation arm 520 has the same structure as the first sub-cam 512 on the first sub-rotation arm 510), so that the second sub-rotation arm 520 can rotate around the second sub-rotation shaft 542 in the direction B'.

The first screw 511 is provided with first support shafts 5112 at both ends in the Z direction, and each first support shaft 5112 extends in the Z direction and has an axis coincident with the first axis. Similarly, two ends of the second screw 521 in the Z direction are further provided with second support shafts, each of which extends in the Z direction and has an axis coincident with the second axis. One end of the first auxiliary rotating shaft 541 extends out of the first auxiliary cam 512 and is disposed corresponding to (specifically, in contact with or spaced from) one of the first supporting rotating shafts 5112 on the first screw 511, and one end of the second auxiliary rotating shaft 542 extends out of the second auxiliary cam and is disposed corresponding to (specifically, in contact with or spaced from) one of the second supporting rotating shafts on the second screw 521, so that the first auxiliary swing arm 510/the second auxiliary swing arm 520 can stably rotate.

Further, referring to fig. 22b and 23, the secondary rotation mechanism 500 further includes a first support frame (also referred to as a first secondary support frame 581) and a second support frame (also referred to as a second secondary support frame 582) disposed at intervals along the Z-direction. The first auxiliary supporting frame 581 and the second auxiliary supporting frame 582 extend along the X direction, and along the direction parallel to the first axis (i.e. the Z direction), the first screw 511, the second screw 521, the third screw 531 and the fourth screw 532 are all disposed between the first auxiliary supporting frame 581 and the second auxiliary supporting frame 582, and both ends of the four are respectively connected with the first auxiliary supporting frame 581 and the second auxiliary supporting frame 582 in a rotating manner.

Specifically, the first screw 511 includes a first end and a second end, the first end of the first screw 511 is defined as an end facing the first auxiliary rotating shaft 541, and the second end of the first screw 511 is defined as an end far from the first auxiliary rotating shaft 541; the second screw 521 also includes a first end and a second end, wherein the first end of the second screw 521 is defined as the end facing the second sub-rotation shaft 542 and the second end of the second screw 521 is defined as the end facing away from the second sub-rotation shaft 542. The first auxiliary supporting frame 581 is disposed at one side of the second ends of the first screw 511 and the second screw 521, and is provided with four through holes disposed at intervals along the X direction, and the first supporting shaft 5112 at the second end of the first screw 511, the end of the third screw 531 at the same side, the end of the fourth screw 532 at the same side, and the second supporting shaft at the second end of the second screw 521 are all disposed in the corresponding through holes on the first auxiliary supporting frame 581 in a penetrating manner.

The second auxiliary supporting frame 582 is disposed at one side of the first ends of the first screw 511 and the second screw 521, and four through holes are also formed in the second auxiliary supporting frame 582 at intervals along the X direction, where the first supporting shaft 5112 at the first end of the first screw 511, the end of the third screw 531 at the same side, the end of the fourth screw 532 at the same side, and the second supporting shaft at the first end of the second screw 521 are sequentially disposed in the corresponding through holes in the second auxiliary supporting frame 582. And an end portion of the first auxiliary rotating shaft 541 and an end portion of the second auxiliary rotating shaft 542 are respectively sleeved in through holes (i.e., a through hole sleeved with the first supporting rotating shaft 5112 and a through hole sleeved with the second supporting rotating shaft) at two ends of the second auxiliary supporting frame 582 in the X direction, and a certain gap is formed between the first supporting rotating shaft 5112 and the first auxiliary rotating shaft 541 in the through holes sleeved on the second auxiliary supporting frame 582 in the Z direction, and a certain gap is also formed between the second supporting rotating shaft and the second auxiliary rotating shaft 542 in the other through holes sleeved on the second auxiliary supporting frame 582 in the Z direction, so as to avoid unnecessary wear caused by contact of the ends of the first supporting rotating shaft 5112/the second supporting rotating shaft and the first auxiliary rotating shaft 541/the second auxiliary rotating shaft 542 on the first screw 511/the second screw 521.

With further reference to fig. 22b and 23, the secondary rotation mechanism 500 further includes a cam bracket (also referred to as a secondary cam bracket 550), a third support bracket (also referred to as a third secondary support bracket 583), and a clip spring bracket (also referred to as a secondary clip spring bracket 590) disposed at intervals along the Z direction, and all of the three are disposed on a side of the first secondary cam 512/the second secondary cam away from the screw set 530.

Specifically, in the Z direction, the sub cam bracket 550 extends in the X direction, and both ends thereof are respectively engaged with the first sub cam 512 on the first sub swing arm 510 and the second sub cam concavities and convexities on the second sub swing arm 520. Taking the first sub-cam 512 as an example, referring to fig. 24, a groove 5121 is provided on the first sub-cam 512, a bump is provided at a corresponding position of the sub-cam bracket 550, and when the sub-cam bracket 550 is mounted on the first sub-cam 512, the bump on the sub-cam bracket 550 is engaged into the groove 5121 on the first sub-cam 512, thereby realizing concave-convex engagement of the sub-cam bracket 550 and the first sub-cam 512. The second sub-cam is identical in structure to the first sub-cam 512 and will not be described again.

The third sub-support 583 is located at a side of the sub-cam bracket 550 remote from the first sub-cam 512 and the second sub-cam, and a sub-spring 560 extending in the Z direction is provided between the sub-cam bracket 550 and the third sub-support 583. A secondary circlip bracket 590 is further provided on a side of the third secondary support bracket 583 remote from the secondary cam bracket 550, for providing a limiting effect to the third secondary support bracket 583. Specifically, the number of the sub springs 560 is plural, and they may be respectively fitted over the first sub rotary shaft 541 and the second sub rotary shaft 542. That is, each sub-spring 560 is penetrated by the corresponding first and second sub-rotating shafts 541 and 542, respectively, and the sub-spring 560 is slidable along the Z direction; one end of each sub-spring 560 is in contact with the sub-cam bracket 550 and the other end is in contact with the third sub-bracket 583, so that the sub-springs 560 can provide a rotation damping force of the swing arms through the sub-clip spring bracket 590 at one side of the cam and the third sub-bracket 583 during the synchronous rotation of the first and second sub-swing arms 510 and 520. The number of cams on the swing arm is reduced by adding the auxiliary clamp spring support 590, so that the structure of the swing arm can be simplified, and the production of the swing arm is facilitated.

Further, with continued reference to fig. 23, the secondary rotational mechanism 500 also includes a secondary fixed bracket 570 disposed between the second secondary support bracket 582 and the first and second secondary cams 512/582 in the Z-direction. Specifically, the auxiliary fixing bracket 570 extends along the X direction, two ends of the auxiliary fixing bracket 570 in the X direction are respectively close to or abutted against one sides of the first auxiliary cam 512 and the second auxiliary cam close to the screw group 530, two ends of the auxiliary fixing bracket 570 are further provided with through holes, and the first auxiliary rotating shaft 541 and the second auxiliary rotating shaft 542 respectively extend out after passing through the through holes.

It should be noted that, in the embodiment of the present application, the folding mobile phone may have the main rotation mechanism and the auxiliary rotation mechanism in the above embodiment at the same time; in some possible embodiments, only any one of the main rotation mechanism and the auxiliary rotation mechanism may be included, which is not limited in this application.

In sum, the rotating mechanism of the embodiment of the application adopts the integrated screw structure that sets up on the swing arm to utilize screw rod group to make the screw rod threaded connection on two swing arms, simplified rotating mechanism's structure, and simple in manufacturing process has reduced rotating mechanism's cost, and this rotating mechanism simple structure is compact, can fully place in the narrow and small space in the casing, is favorable to realizing that folder size makes little and makes thinly, does benefit to folding terminal's miniaturization.

Claims (17)

1. A rotary mechanism, comprising:

the first swing arm is provided with a first screw rod and can rotate around a first axis;

a second swing arm provided with a second screw, the second swing arm being rotatable about a second axis, the second axis being parallel to the first axis;

the first screw rod is in threaded connection with the second screw rod through a screw rod group, so that the first swing arm and the second swing arm can synchronously and reversely rotate.

2. The rotating mechanism according to claim 1, wherein the first screw is axially extended from an end of the first swing arm opposite to the second swing arm, and the second screw is axially extended from an end of the second swing arm opposite to the first swing arm.

3. The rotary mechanism of claim 1, wherein the threads on the first screw and the second screw are oppositely threaded.

4. A rotary mechanism according to any one of claims 1 to 3, wherein a part of the first screw in the circumferential direction is provided with a first thread, and a part of the second screw in the circumferential direction is provided with a second thread; the first thread and the second thread are opposite.

5. A rotary mechanism according to any one of claims 1 to 3, wherein the screw set comprises a third screw and a fourth screw, the third screw being threadably coupled to the first screw and the second screw, respectively, and the fourth screw being threadably coupled to the third screw and the second screw, respectively.

6. A rotary mechanism according to any one of claims 1 to 3, wherein the first screw is provided with first support shafts at both ends in the axial direction, and the second screw is provided with second support shafts at both ends in the axial direction;

the rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a first supporting frame and a second supporting frame; the first screw rod, the second screw rod and the screw rod group are arranged between the first support frame and the second support frame along the direction parallel to the first axis, and the two ends of the screw rod group in the axial direction are respectively connected with the first support frame and the second support frame in a rotating way;

the first support frame and the second support frame extend along a first direction, the first direction is perpendicular to the first axis, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft;

The two ends of the first support frame in the first direction are respectively and rotatably connected with a first support rotating shaft at one end of the first screw rod and a second support rotating shaft at one end of the second screw rod;

the second support frame is in first directional both ends have seted up first perforation and second perforation respectively, the first support pivot of first screw rod other end with the one end of first pivot is located in the first perforation, the second support pivot of second screw rod other end with the one end of second pivot is located in the second perforation.

7. A rotary mechanism according to any one of claims 1 to 3, wherein the first swing arm is further provided with a first cam, the second swing arm is further provided with a second cam, and the first cam and the second cam are disposed correspondingly;

the rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a cam bracket, a third supporting frame and a clamp spring bracket; wherein, the liquid crystal display device comprises a liquid crystal display device,

the cam bracket, the third support and the clamp spring bracket all extend along a first direction, the first direction is perpendicular to the first axis, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft;

The cam support is arranged on one side, far away from the screw rod group, of the first cam and the second cam, and two ends of the cam support in the first direction are respectively matched with the first cam and the second cam in a concave-convex mode;

the third support frame and the cam support frame are arranged at intervals along the direction parallel to the first axis, and the clamp spring support frame is arranged on one side, far away from the cam support frame, of the third support frame;

the first rotating shaft sequentially penetrates through the first cam, one end of the cam support, one end of the third support frame and one end of the clamp spring support; the second rotating shaft sequentially penetrates through the second cam, the other end of the cam support, the other end of the third support frame and the other end of the clamp spring support;

the first rotating shaft and the second rotating shaft are respectively sleeved with a spring, and the springs are positioned between the cam bracket and the third supporting frame.

8. The rotary mechanism of claim 7, further comprising a mount disposed between the screw set and the cam carrier in a direction parallel to the first axis.

9. A folding terminal, comprising:

A first body;

a second body;

a first rotation mechanism, the first rotation mechanism being the rotation mechanism according to any one of claims 1 to 8, the first swing arm in the first rotation mechanism being connected to the first body, the second swing arm in the first rotation mechanism being connected to the second body.

10. The folding terminal of claim 9, further comprising a second rotation mechanism, the second rotation mechanism comprising:

the first swing arm is provided with a first rotating seat, and the first swing arm of the second rotating mechanism can rotate around the first axis;

the second swing arm is provided with a second rotating seat, and the second swing arm of the second rotating mechanism can rotate around the second axis;

the first rotating seat is provided with a plurality of first gear teeth distributed along the circumferential direction, the second rotating seat is provided with a plurality of second gear teeth distributed along the circumferential direction, and the plurality of first gear teeth and the plurality of second gear teeth are connected through gear set meshing, so that the first swing arm of the second rotating mechanism and the second swing arm of the second rotating mechanism can synchronously and reversely rotate.

11. The folding terminal of claim 10, wherein a portion of the first rotating seat in a circumferential direction is provided with the plurality of first gear teeth, and a portion of the second rotating seat in a circumferential direction is provided with the plurality of second gear teeth.

12. The folding terminal of claim 10, wherein the gear set includes a first gear and a second gear, the first gear meshing with the first gear tooth and the second gear tooth, respectively, and the second gear meshing with the first gear tooth and the second gear tooth, respectively.

13. The folding terminal according to any one of claims 10 to 12, wherein the second rotating mechanism further includes a first rotating shaft, an axis of the first rotating shaft of the second rotating mechanism being coincident with the first axis;

the first rotating seat comprises a first shaft hole, the first shaft hole comprises a first part and a second part along the axial direction, the first part of the first shaft hole is arranged corresponding to the first gear teeth, and the aperture of the first part of the first shaft hole is smaller than that of the second part of the first shaft hole;

the first rotating shaft of the second rotating mechanism comprises a first part and a second part, the diameter of the first part of the first rotating shaft of the second rotating mechanism is smaller than that of the second part of the first rotating shaft of the second rotating mechanism, the first part of the first shaft hole is sleeved on the first part of the first rotating shaft of the second rotating mechanism, and the second part of the first shaft hole is sleeved on the second part of the first rotating shaft of the second rotating mechanism.

14. The folding terminal according to any one of claims 10 to 12, wherein the second rotating mechanism further includes a second rotating shaft, an axis of the second rotating shaft of the second rotating mechanism coinciding with the second axis;

the second rotating seat comprises a second shaft hole, the second shaft hole comprises a first part and a second part along the axial direction, the first part of the second shaft hole is arranged corresponding to the second gear teeth, and the aperture of the first part of the second shaft hole is smaller than that of the second part of the second shaft hole;

the second rotating shaft of the second rotating mechanism comprises a first part and a second part, the diameter of the first part of the second rotating shaft of the second rotating mechanism is smaller than that of the second part of the second rotating shaft of the second rotating mechanism, the first part of the second shaft hole is sleeved on the first part of the second rotating shaft of the second rotating mechanism, and the second part of the second shaft hole is sleeved on the second part of the second rotating shaft of the second rotating mechanism.

15. The folding terminal according to any one of claims 10 to 12, wherein the second rotating mechanism further includes a first rotating shaft, an axis of the first rotating shaft of the second rotating mechanism being coincident with the first axis; one end of the first rotating seat is provided with a first rotating shaft which is integrally formed with the first rotating seat, and the other end of the first rotating seat is fixedly connected with the first rotating shaft of the second rotating mechanism; and/or the second rotating mechanism further comprises a second rotating shaft, and the axis of the second rotating shaft of the second rotating mechanism coincides with the second axis; one end of the second rotating seat is provided with a second rotating shaft which is integrally formed with the second rotating seat, and the other end of the second rotating seat is fixedly connected with a second rotating shaft of the second rotating mechanism.

16. The folding terminal according to any one of claims 10 to 12, wherein both ends of the first rotating seat are provided with a first rotating shaft integrally formed therewith, and both ends of the second rotating seat are provided with a second rotating shaft integrally formed therewith;

the second rotating mechanism further comprises a first rotating shaft, a second rotating shaft, a first supporting frame and a second supporting frame; the first rotating seat, the second rotating seat and the gear set are arranged between the first supporting frame of the second rotating mechanism and the second supporting frame of the second rotating mechanism, and the gear set is respectively connected with the first supporting frame of the second rotating mechanism and the second supporting frame of the second rotating mechanism in a rotating way;

the first support frame of the second rotating mechanism and the second support frame of the second rotating mechanism extend along a first direction, the first direction is perpendicular to the first axis, the first axis is the axis of the first rotating shaft, and the second axis is the axis of the second rotating shaft;

the two ends of the first support frame of the second rotating mechanism in the first direction are respectively connected with a first rotating shaft at one end of the first rotating seat and a second rotating shaft at one end of the second rotating seat in a rotating way;

The second support frame of the second rotating mechanism is provided with a first through hole and a second through hole at two ends in the first direction respectively, a first rotating shaft at the other end of the first rotating seat and one end of a first rotating shaft of the second rotating mechanism are arranged in the first through hole, and a second rotating shaft at the other end of the second rotating seat and one end of a second rotating shaft of the second rotating mechanism are arranged in the second through hole.

17. The folding terminal of claim 9, further comprising: the flexible screen covers the first machine body, the second machine body and the first rotating mechanism.

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