A double-screen rotating mechanism

Abstract

The present invention discloses a dual-screen rotation mechanism, including a mainframe, a main screen and an auxiliary screen, wherein the main screen is hinged with the auxiliary screen, and the dual-screen rotation mechanism also includes a slide rail seat mechanism, wherein the slide rail seat mechanism includes: a mounting seat, which is hinged with the mainframe; a linear motion mechanism, which is mounted on the mounting seat; a first rotating shaft, whose two ends are respectively connected to the mounting seat and the main screen, and when the main screen and the auxiliary screen are flipped, the main screen rotates around the first rotating shaft; a second rotating shaft, whose two ends are respectively connected to the linear motion mechanism and the auxiliary screen, and when the main screen and the auxiliary screen are flipped, the auxiliary screen rotates around the second rotating shaft, and the second rotating shaft slides along the linear motion mechanism. The present invention can realize rapid flipping of dual screens and centered display, with stable center of gravity, good viewing angle, and strong vibration resistance; the internal cables are not affected by flipping and sliding dragging and the cable length is greatly shortened, with long service life, strong anti-interference ability, and simpler and more convenient flipping operation.

Description

Technical Field

[0001] The invention belongs to the technical field of computer displays, and in particular relates to a double-screen rotating mechanism. Background Art

[0002] With the development of society, the traditional single-screen display can no longer meet people's requirements for display effects, especially in some special fields, the host needs to realize multi-screen display at the same time. The existing software and hardware can realize the multi-display effect of a single host, but most of them are multi-display independent expansion display. There are two main types of existing dual-screen rotation mechanisms:

[0003] 1) The double screens can be opened and closed by splicing the flip mechanism up and down through the hinges. After unfolding, the center of gravity is unstable, which is prone to tipping over. In addition, after unfolding, the hinge damping requirements are high to maintain the unfolded state, making it difficult to flip. At the same time, since the attached screen is not fixedly connected to the base mechanism, the vibration resistance is poor.

[0004] 2) The opening and closing rotation of the dual screens is realized through the hinged left and right flipping structure, which is divided into two types: one is that the auxiliary screen and the main screen only have a hinge mechanism, and the auxiliary screen is located on one side of the main screen after unfolding. After the dual screens are unfolded, the auxiliary screen is located on one side of the main screen, so the center of gravity is unstable, which is prone to the risk of rollover, and it is impossible to display in the center, and the viewing angle is not good; at the same time, since there is no fixed connection between the auxiliary screen and the base mechanism, the vibration resistance is poor. The other method is based on the first solution and adds a sliding pair between the main screen and the base, which solves the problems of unstable center of gravity and inability to display in the center, but there is still no fixed connection between the auxiliary screen and the main unit, and the vibration resistance is poor. The internal cables need to be dragged and folded with the sliding pair, which is easy to break. In addition, the cables are long, have poor anti-interference ability, and are complicated and cumbersome to operate. Summary of the invention

[0005] The purpose of the present invention is to propose a dual-screen rotation mechanism in response to the above-mentioned problems. Both screens are connected and supported, so that the dual screens can be quickly flipped and displayed in the center, with a stable center of gravity, a good viewing angle, and strong vibration resistance. The internal cables are not affected by flipping and sliding drag and the cable length is greatly shortened. The service life is long, the anti-interference ability is strong, the signal is not easily lost, and the flipping operation is simpler and more convenient.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] The present invention provides a dual-screen rotation mechanism, comprising a main unit, a main screen and an auxiliary screen, wherein the main screen and the auxiliary screen are hinged, and the dual-screen rotation mechanism further comprises a slide rail seat mechanism, wherein the slide rail seat mechanism comprises:

[0008] A mounting base, hinged to the host;

[0009] A linear motion mechanism is mounted on a mounting base;

[0010] A first rotating shaft, with two ends respectively connected to the mounting base and the main screen, so that when the main screen and the auxiliary screen are flipped, the main screen rotates around the first rotating shaft;

[0011] The second rotating shaft has two ends respectively connected to the linear motion mechanism and the auxiliary screen. When the main screen and the auxiliary screen are flipped, the auxiliary screen rotates around the second rotating shaft, and the second rotating shaft slides along the linear motion mechanism.

[0012] Preferably, the first rotating shaft is arranged at a quarter position in the length direction of the main screen.

[0013] Preferably, the rotation center of the first rotation axis is located on the middle plane of the thickness direction of the main screen, and the rotation center of the second rotation axis is located on the middle plane of the thickness direction of the auxiliary screen.

[0014] Preferably, the linear motion mechanism is a guide rail and slider mechanism, wherein the guide rail is connected to the mounting seat, and the slider is connected to the second rotating shaft.

[0015] Preferably, when the main screen and the auxiliary screen are fully unfolded or closed, the angle α between the guide rail and the length direction of the main screen or the auxiliary screen satisfies the condition:

[0016]

[0017] The length x of the guide rail satisfies the condition:

[0018]

[0019] When the main screen and the auxiliary screen are fully unfolded, the axis distance y between the second rotation axis and the first rotation axis satisfies the condition:

[0020]

[0021] Among them, a is the length of the main screen or the auxiliary screen; b is the thickness of the main screen or the auxiliary screen; c is the distance from the second rotating axis to the hinge installation side end face of the auxiliary screen, a / 4≤c≤a / 2; d is the distance between the main screen and the auxiliary screen when fully unfolded or closed.

[0022] Preferably, the mounting seat is a shell connected by a base and a cover plate, the linear motion mechanism is located in the mounting seat and connected to the bottom of the base; the cover plate is provided with a slot for preventing the second rotating shaft from sliding and a through hole for the first rotating shaft to pass through.

[0023] Preferably, the hinges between the mounting base and the host and between the main screen and the auxiliary screen all contain damping devices.

[0024] Preferably, the first rotating shaft is a hollow rotating shaft.

[0025] Preferably, at least one hinge is connected between the main screen and the auxiliary screen, and at least one of the hinges is a hollow hinge.

[0026] Preferably, a locking mechanism for opening and closing is provided between the host and the main screen or the auxiliary screen.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1) The combination of the first rotating shaft, the second rotating shaft and the linear motion mechanism is adopted to realize the automatic flipping of the auxiliary screen when the main screen flips, the dual screens are displayed in the center and the unfolding angle is adjustable, the flipping is fast, the center of gravity is stable, and the viewing angle is good;

[0029] 2) Both the main screen and the auxiliary screen are connected and supported, with strong vibration resistance;

[0030] 3) The internal cable is electrically connected to the dual screens through the branch behind the first rotating shaft, which is not affected by flipping and sliding drag and greatly shortens the cable length. It has a long service life, strong anti-interference ability, is not easy to lose signals, and the flip operation is simpler and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the present invention;

[0032] Figure 2 It is a structural schematic diagram of the slide rail seat mechanism of the present invention;

[0033] Figure 3 AA sectional view of the slide rail seat mechanism of the present invention;

[0034] Figure 4 BB is a cross-sectional view of the slide rail seat mechanism of the present invention;

[0035] Figure 5 It is a CC cross-sectional view of the slide rail seat mechanism of the present invention;

[0036] Figure 6 It is a schematic diagram of the transmission model of the main screen and the auxiliary screen of the present invention;

[0037] Figure 7 It is a schematic diagram of the closed state structure of the present invention;

[0038] Figure 8 This is a schematic diagram of the first step flipping state structure of the present invention;

[0039] Fig. 9 This is a schematic diagram of the second step flipping state structure of the present invention;

[0040] Fig.10 It is a schematic diagram of the unfolded state structure of the present invention.

[0041] Explanation of the reference numerals: 1. main unit; 2. main screen; 3. auxiliary screen; 4. slide rail seat mechanism; 5. cable; 11a. first connecting seat; 11b. second connecting seat; 11. first hinge; 12. second hinge; 21. third hinge; 41. mounting seat; 42. first rotating shaft; 43. linear motion mechanism; 44. second rotating shaft; 411. base; 412. cover plate; 421. second positioning block; 441. adapter seat; 411a. first positioning block; 412a. notch; 412b. boss. DETAILED DESCRIPTION

[0042] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. The following embodiments do not constitute a limitation of the present invention.

[0043] Embodiment 1:

[0044] like Figure 1-10 As shown, a dual-screen rotation mechanism includes a host 1, a main screen 2 and an auxiliary screen 3, the main screen 2 and the auxiliary screen 3 are hinged, and the dual-screen rotation mechanism also includes a slide rail seat mechanism 4, and the slide rail seat mechanism 4 includes:

[0045] A mounting base 41, hinged to the host 1;

[0046] A linear motion mechanism 43 is mounted on the mounting seat 41;

[0047] The first rotating shaft 42 has two ends connected to the mounting base 41 and the main screen 2 respectively. When the main screen 2 and the auxiliary screen 3 are flipped, the main screen 2 rotates around the first rotating shaft 42;

[0048] The second rotating shaft 44 has two ends connected to the linear motion mechanism 43 and the auxiliary screen 3 respectively. When the main screen 2 and the auxiliary screen 3 are flipped, the auxiliary screen 3 rotates around the second rotating shaft 44 and the second rotating shaft 44 slides along the linear motion mechanism 43.

[0049] Among them, Figure 1 and 2As shown, the host 1 is provided with a first connection seat 11a and a second connection seat 11b, and the slide rail seat mechanism 4 includes a mounting seat 41, a first rotating shaft 42, a linear motion mechanism 43 and a second rotating shaft 44. The mounting seat 41 is hinged to the host 1, such as the right side of the mounting seat 41 is hinged to the first connection seat 11a through the first hinge 11, and the left side is hinged to the second connection seat 11b through the second hinge 12. The first hinge 11 and the second hinge 12 are coaxial and the two ends of each hinge are respectively fixedly connected to the host 1 and the mounting seat 41, so that the slide rail seat mechanism 4 can rotate relative to the host 1 to realize the flipping and opening of the main screen 2 and the auxiliary screen 3. A rotating pair is formed between the slide rail seat mechanism 4 and the host 1 by the first hinge 11 and the second hinge 12. The main screen 2 and the auxiliary screen 3 are connected by hinges to realize the flipping between the main screen 2 and the auxiliary screen 3, and a rotating pair is formed between the main screen 2 and the auxiliary screen 3 by hinges. The two ends of the first rotating shaft 42 are fixedly connected to the mounting seat 41 and the main screen 2 by screws, respectively, and the two ends of the first rotating shaft 42 can rotate relative to each other. When the main screen 2 and the auxiliary screen 3 are flipped, the main screen 2 is rotated around the axis of the first rotating shaft 42, and a rotating pair is formed between the slide rail seat mechanism 4 and the main screen 2 by the first rotating shaft 42; the two ends of the second rotating shaft 44 are fixedly connected to the linear motion mechanism 43 and the auxiliary screen 3 by screws, respectively, and the two ends of the second rotating shaft 44 can rotate relative to each other. When the main screen 2 and the auxiliary screen 3 are flipped, the auxiliary screen 3 is rotated around the axis of the second rotating shaft 44, and the second rotating shaft 44 slides along the linear motion mechanism 43. A rotating pair is formed between the auxiliary screen 3 and the linear motion mechanism 43 by the second rotating shaft 44, the linear motion mechanism 43 and the mounting seat 41 are fixedly connected by screws, and a sliding pair is formed between the second rotating shaft 44 and the linear motion mechanism 43, so that the auxiliary screen 3 moves along a unique trajectory driven by the flipping of the main screen 2, and the flipping angle of the auxiliary screen 3 and the main screen 2 mechanism is limited. The use of the first rotating shaft 42 and the second rotating shaft 44 is well known to those skilled in the art and will not be described in detail herein.

[0050] In the present application, the main screen 2 and the auxiliary screen 3, the slide rail seat mechanism 4 and the host 1, and the slide rail seat mechanism 4 and the main screen 2 are all connected by a rotating pair, and the slide rail seat mechanism 4 and the auxiliary screen 3 are connected by a sliding pair and a rotating pair. Through four rotating pairs and one sliding pair, the auxiliary screen 3 is synchronously flipped when the main screen 2 is flipped, and the dual screens are displayed in the center after unfolding. The dual screen unfolding angle of the dual screen rotating mechanism is adjustable, the opening and closing is convenient and quick, the center of gravity is stable, the viewing angle is good, and the dual screens are connected and supported, with strong vibration resistance.

[0051] In one embodiment, the first rotating shaft 42 is disposed at a quarter position in the length direction of the main screen 2 .

[0052] Among them, the main screen 2 and the auxiliary screen 3 of the dual-screen rotation mechanism are of the same size and can be flipped left and right. According to the dual-screen flipping opening and closing motion trajectory, the first rotating shaft 42 is set at a quarter position in the length direction of the main screen 2, which can meet the dual-screen centering display requirements and provide a better viewing angle. According to the flipping operation habits, the first rotating shaft 42 can be set on one side of the main screen 2. For example, in this embodiment, in order to facilitate the operation of the user, the main screen 2 is located on the right side after unfolding, and the first rotating shaft 42 is set at a quarter position on the side of the main screen 2 close to the auxiliary screen 3 in the length direction.

[0053] In this embodiment, the rotation center of the first rotation axis 42 is located on the middle plane of the thickness direction of the main screen 2 , and the rotation center of the second rotation axis 44 is located on the middle plane of the thickness direction of the auxiliary screen 3 .

[0054] Among them, the rotation center of the first rotating shaft 42 is located at one-half position in the thickness direction of the main screen 2, and the rotation center of the second rotating shaft 44 is located at one-half position in the thickness direction of the auxiliary screen 3, which is convenient for extracting the law of motion trajectory and rationalizing the structure design.

[0055] In this embodiment, the linear motion mechanism 43 is a guide rail and slider mechanism, wherein the guide rail is connected to the mounting seat 41 , and the slider is connected to the second rotating shaft 44 .

[0056] Among them, the linear motion mechanism 43 is a guide rail and slider mechanism, wherein the guide rail is fixedly connected to the mounting seat 41 by screws, and the slider is fixedly connected to the second rotating shaft 44 by screws, and the connection mode can be direct connection or indirect connection through an intermediate medium. The two ends of the second rotating shaft 44 are respectively connected to the slider and the auxiliary screen 3, which can support the auxiliary screen 3 while realizing the linkage of the main screen 2 with the auxiliary screen 3. The second rotating shaft 44 connected to the auxiliary screen 3 moves linearly along the guide rail, so that the main screen 2 and the auxiliary screen 3 move along a unique trajectory when flipping. At the same time, the position and length of the guide rail limit the flip angle of the main screen 2 and the auxiliary screen 3, eliminating the flip angle under an undesirable state, and realizing rapid flipping into place, smooth movement process and good seismic performance.

[0057] In this embodiment, when the main screen and the auxiliary screen are fully unfolded or closed, the angle α between the guide rail and the length direction of the main screen 2 or the auxiliary screen 3 satisfies the condition:

[0058]

[0059] The length x of the guide rail satisfies the condition:

[0060]

[0061] When the main screen 2 and the auxiliary screen 3 are fully unfolded, the axis distance y between the second rotation axis 44 and the first rotation axis 42 satisfies the condition:

[0062]

[0063] Among them, a is the length of the main screen 2 or the auxiliary screen 3; b is the thickness of the main screen 2 or the auxiliary screen 3; c is the distance between the second rotating shaft 44 and the hinge installation side end face of the auxiliary screen 3, a / 4≤c≤a / 2; d is the distance between the main screen 2 and the auxiliary screen 3 when fully unfolded or closed.

[0064] Among them, according to the motion trajectory of the dual-screen rotation mechanism, when the positions of each rotation pair and sliding pair meet the above conditions, the dual-screen rotation mechanism can be smoothly unfolded and displayed in the center. Figure 6 As shown, the meaning of each symbol in the figure is: a is the length of the main screen 2 or the auxiliary screen 3; b is the thickness of the main screen 2 or the auxiliary screen 3; c is the distance between the second rotating shaft 44 and the hinge installation side end face of the auxiliary screen 3, a / 4≤c≤a / 2; d is the distance between the main screen 2 and the auxiliary screen 3 when fully unfolded or closed; S1 is the main screen 2 in the closed state; S2 is the auxiliary screen 3 in the closed state; S3 is the main screen 2 in the unfolded state; S4 is the auxiliary screen 3 in the unfolded state; A is the rotation sub-center of the first rotating shaft 42; B1 is the rotation sub-center of the main screen 2 and the auxiliary screen 3 in the closed state; B2 is the rotation sub-center of the main screen 2 and the auxiliary screen 3 in the unfolded state; C1 is the rotation sub-center and the sliding sub-position of the second rotating shaft 44 in the closed state; C2 is the rotation sub-center and the sliding sub-position of the second rotating shaft 44 in the unfolded state; D1D2 is the length of the double-screen rotation mechanism in the closed state, that is, the length a of the main screen 2 or the auxiliary screen 3.

[0065] When the main screen 2 and the auxiliary screen 3 are unfolded, the main screen 2 only rotates around the first rotation axis 42. The main screen 2 drives the auxiliary screen 3 to rotate around the second rotation axis 44 through the hinge relationship between the main screen 2 and the auxiliary screen 3. The position of the guide rail slider mechanism and the second rotation axis 44 can be set according to the motion trajectory, and the angle α, the guide rail length x, and the axial spacing y between the second rotation axis 44 and the first rotation axis 42 can be determined. According to the motion state of the auxiliary screen 3, when c is less than a / 4, a deadlock angle will be generated when the auxiliary screen 3 and the main screen 2 are closed, and they cannot be closed; when c is greater than a / 2, the auxiliary screen 3 and the main screen 2 cannot be fully unfolded, so the rotation sub-center position of the second rotation axis 44 satisfies a / 4≤c≤a / 2. The specific size can be set according to the size and design requirements of the dual-screen rotation mechanism to meet the movement of the main screen 2 and the auxiliary screen 3 along a unique trajectory when flipping.

[0066] It should be noted that the linear motion mechanism 43 can also be other linear motion structures, such as using a slide groove structure that cooperates with the second rotating shaft 44, so that the second rotating shaft 44 moves along the slide groove, replacing the guide rail slider mechanism, and the connecting end of the second rotating shaft 44 and the slider can also be replaced by a directly connected roller to reduce sliding friction, have a simple structure, low cost, and help achieve miniaturization. And the slide groove structure also satisfies the above calculation formula.

[0067] In one embodiment, the mounting seat 41 is a shell connected by a base 411 and a cover plate 412, and the linear motion mechanism 43 is located in the mounting seat 41 and connected to the bottom of the base 411; the cover plate 412 is provided with a slot 412a for preventing the second rotating shaft 44 from sliding and a through hole through which the first rotating shaft 42 passes.

[0068] The mounting seat 41 is a housing connected by a base 411 and a cover plate 412, and the linear motion mechanism 43 is located in the mounting seat 41. For example, when the linear motion mechanism 43 is a guide rail slider mechanism, Figure 2-5 As shown, the mounting seat 41 includes a groove-shaped base 411 and a flat cover plate 412 that are connected to each other. The guide rail slider mechanism is located in the base 411. The guide rail is fixedly connected to the bottom of the groove of the base 411 by screws. The cover plate 412 is provided with a long strip-shaped notch 412a for avoiding the sliding of the second rotating shaft 44 and a through hole through which the first rotating shaft 42 passes. The notch 412a is parallel to the guide rail. The notch 412a provided on the cover plate 412 can provide an avoidance space for the movement of the second rotating shaft 44 so that it can move linearly under the drive of the slider. The second rotating shaft 44 and the slider can be directly fixedly connected or indirectly connected by using a transfer seat 441. The through hole allows the first rotating shaft 42 to pass through and connect the main screen 2 and the base 411. The first rotating shaft 42 can be directly connected to the base 411 or indirectly connected by using a second positioning block 421. The transfer seat 441 and the second positioning block 421 are used to adjust the position so that the main screen 2 or the auxiliary screen 3 is always parallel to the adjacent surface of the mounting seat 41. The mounting seat 41 is designed as a shell that can enclose the moving parts, making the appearance more beautiful and elegant, and also helps to protect the internal moving parts.

[0069] It should be noted that the mounting base 41 can be structurally improved arbitrarily according to actual needs. For example, both ends of the mounting base 41 are connected to bosses 412b, and the bosses 412b can enable the dual-screen rotation mechanism to maintain a beautiful and elegant appearance in any flipping state; for example, first positioning blocks 411a are set at both ends of the mounting base 41 to cooperate with the installation positioning of the first hinge 11 or the second hinge 12.

[0070] In this embodiment, the hinges between the mounting base 41 and the host 1 and between the main screen 2 and the auxiliary screen 3 all contain damping devices.

[0071] Among them, the damping device can be used to adjust the flip angle between the dual screens and the host 1, and between the main screen 2 and the auxiliary screen 3 to meet the needs of using different viewing angles.

[0072] In this embodiment, the first rotating shaft 42 is a hollow rotating shaft.

[0073] Among them, Figure 4 , 5As shown, the first rotating shaft 42 is a hollow rotating shaft, and is indirectly connected to the base 411 through the second positioning block 421. The second positioning block 421 is provided with a hole that interpenetrates with the hole of the first rotating shaft 42. If the first hinge 11 is a hollow hinge 1, the cable 5 can enter the slide rail seat mechanism 4 through the first hinge 11, and then pass through the connected hole to enter the main screen 2, and is divided into two in the main screen 2, one lighting the main screen 2, and the other lighting the auxiliary screen 3. Through this routing method, the length of the cable 5 required when sliding and unfolding through the sliding pair can be reduced, thereby reducing the problem of signal loss interference. In addition, the first rotating shaft 42 only rotates, and the cable 5 routing enters each mechanism through the rotating pair. During the flipping process of the double-screen rotating mechanism, the sliding pair will not affect the internal cable 5, that is, the internal cable 5 will not be dragged and folded, and the internal cable 5 will not be damaged and worn due to long-term flipping, which greatly improves the service life of the cable 5.

[0074] In this embodiment, at least one hinge is connected between the main screen 2 and the auxiliary screen 3, and at least one of the hinges is a hollow hinge.

[0075] There are two third hinges 21 connected between the main screen 2 and the auxiliary screen 3. Figure 1 As shown, the third hinge 21 on the lower side is a hollow hinge for the cable 5 to pass through the first rotating shaft 42 and then branch out to electrically connect the main screen 2 and the auxiliary screen 3. It is not affected by flipping and sliding drag and greatly shortens the cable length. It has a long service life, strong anti-interference ability, is not easy to lose signals, and the flipping operation is simpler and more convenient.

[0076] In one embodiment, a locking mechanism for opening and closing is provided between the host 1 and the main screen 2 or the auxiliary screen 3 .

[0077] Among them, a locking mechanism can be selectively set between the host 1 and the main screen 2 or the auxiliary screen 3. When the locking mechanism is set, it helps to further protect the dual-screen rotation mechanism and prevent accidental damage to the screen.

[0078] like Figure 7-10As shown, the double-screen rotating mechanism is in the closed state, the first flipping state, the second flipping state and the unfolded state. When not in use, the double-screen rotating mechanism is closed; when in use, the first flipping is performed first, that is, the double screen is rotated and opened relative to the host 1 through the first hinge 11 and the second hinge 12. Then the second flipping is performed, the main screen 2 rotates around the first rotating shaft 42, and the main screen 2 drives the auxiliary screen 3 to rotate around the second rotating shaft 44 through the hinge relationship between the main screen 2 and the auxiliary screen 3, while the second rotating shaft 44 slides along the guide rail, limiting the uniqueness of the trajectory of the auxiliary screen 3 when flipping. The first flipping and the second flipping can adjust the flipping angle between the double screen and the host 1, and between the main screen 2 and the auxiliary screen 3 through the damping device to meet the use requirements of different viewing angles. When the main screen 2 is fully unfolded, the auxiliary screen 3 is fully unfolded at the same time. The double-screen rotating mechanism can be closed by reverse operation. The double-screen rotating mechanism has a stable structure, good vibration resistance and high flipping efficiency.

[0079] Embodiment 2:

[0080] This embodiment is based on the embodiment 1, and the difference is that an elastic mechanism, such as a torsion spring mechanism, is added between the mounting seat 41 and the host 1 or between the main screen 2 and the auxiliary screen 3, and the two torsion arms of the torsion spring mechanism are respectively connected to the mounting seat 41 and the host 1, or respectively connected to the main screen 2 and the auxiliary screen 3. A locking mechanism for opening and closing, such as a buckle, is also provided between the host 1 and the main screen 2 or the auxiliary screen 3. When the double-screen rotation mechanism is closed, the locking mechanism is locked. When in use, the locking mechanism is opened to realize automatic and rapid flipping and unfolding, and the degree of automation is high.

[0081] The technical features in the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] In this application, unless otherwise specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium. A person of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the claims attached to the present invention.

Claims

1. A dual-screen rotation mechanism, comprising a main unit (1), a main screen (2) and an auxiliary screen (3), wherein the main screen (2) and the auxiliary screen (3) are hinged, and characterized in that: The dual-screen rotation mechanism further comprises a slide rail seat mechanism (4), and the slide rail seat mechanism (4) comprises: A mounting seat (41) is hinged to the main machine (1); A linear motion mechanism (43) mounted on the mounting seat (41); A first rotating shaft (42), the two ends of which are respectively connected to the mounting seat (41) and the main screen (2), and when the main screen (2) and the auxiliary screen (3) are turned over, the main screen (2) rotates around the first rotating shaft (42); The second rotating shaft (44) has two ends respectively connected to the linear motion mechanism (43) and the auxiliary screen (3); when the main screen (2) and the auxiliary screen (3) are flipped, the auxiliary screen (3) rotates around the second rotating shaft (44), and the second rotating shaft (44) slides along the linear motion mechanism (43).

2. The dual-screen rotating mechanism according to claim 1, characterized in that: The first rotating shaft (42) is arranged at a quarter position in the length direction of the main screen (2).

3. The dual-screen rotating mechanism according to claim 2, characterized in that: The rotation center of the first rotating shaft (42) is located on the middle plane of the thickness direction of the main screen (2), and the rotation center of the second rotating shaft (44) is located on the middle plane of the thickness direction of the auxiliary screen (3).

4. The dual-screen rotating mechanism according to claim 3, characterized in that: The linear motion mechanism (43) is a guide rail and slider mechanism, wherein the guide rail is connected to the mounting seat (41), and the slider is connected to the second rotating shaft (44).

5. The dual-screen rotating mechanism according to claim 4, characterized in that: When the main screen (2) and the auxiliary screen (3) are fully unfolded or closed, the angle α between the guide rail and the length direction of the main screen (2) or the auxiliary screen (3) satisfies the following condition: The length x of the guide rail satisfies the condition: When the main screen (2) and the auxiliary screen (3) are fully unfolded, the axis distance y between the second rotating axis (44) and the first rotating axis (42) satisfies the condition: Wherein, a is the length of the main screen (2) or the auxiliary screen (3); b is the thickness of the main screen (2) or the auxiliary screen (3); c is the distance between the second rotating shaft (44) and the hinge installation side end face of the auxiliary screen (3), a / 4≤c≤a / 2; d is the distance between the main screen (2) and the auxiliary screen (3) when fully unfolded or closed.

6. The dual-screen rotating mechanism according to claim 1, characterized in that: The mounting seat (41) is a shell connected by a base (411) and a cover plate (412); the linear motion mechanism (43) is located in the mounting seat (41) and is connected to the bottom of the base (411); the cover plate (412) is provided with a notch (412a) for avoiding the sliding of the second rotating shaft (44) and a through hole through which the first rotating shaft (42) passes.

7. The dual-screen rotating mechanism according to any one of claims 1 to 6, characterized in that: The hinges between the mounting seat (41) and the main unit (1) and between the main screen (2) and the auxiliary screen (3) all contain damping devices.

8. The dual-screen rotating mechanism according to claim 7, characterized in that: The first rotating shaft (42) is a hollow rotating shaft.

9. The dual-screen rotating mechanism according to claim 8, characterized in that: At least one hinge is connected between the main screen (2) and the auxiliary screen (3), and at least one of the hinges is a hollow hinge.

10. The dual-screen rotating mechanism according to claim 7, characterized in that: A locking mechanism for opening and closing is provided between the host (1) and the main screen (2) or the auxiliary screen (3).

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